| Message ID | 20221019110647.11076-6-victor.shih@genesyslogic.com.tw |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add support UHS-II for GL9755 | expand |
On 19/10/22 14:06, Victor Shih wrote: > Add UHS-II specific data structures for commands and defines for > registers, as described in Part 1 UHS-II Addendum Version 1.01. > > UHS-II related definitions are listed below: > 1. UHS-II card capability: sd_uhs2_caps{} > 2. UHS-II configuration: sd_uhs2_config{} > 3. UHS-II Command structure: uhs2_command{} > 4. UHS-II register I/O address and register field definitions: sd_uhs2.h > > Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> > Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw> > Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> > --- > > Updates in V5: > - Added UHS2 interfaces in mmc_host_ops: host.h > - Added UHS2 VDD2 power supply in mmc_supply: host.h > - Added UHS2-specific OCR and UHS2 VDD2 max current in mmc_host: host.h > - Added definition of UHS2 VDD2 1.65v-1.95v in mmc_host: host.h > - Added flags/MMC_UHS2_SUPPORT/MMC_UHS2_2L_HD in mmc_host: host.h > --- > include/linux/mmc/card.h | 42 +++++- > include/linux/mmc/core.h | 13 ++ > include/linux/mmc/host.h | 70 +++++++++- > include/linux/mmc/sd_uhs2.h | 263 ++++++++++++++++++++++++++++++++++++ > 4 files changed, 386 insertions(+), 2 deletions(-) > create mode 100644 include/linux/mmc/sd_uhs2.h > > diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h > index 4a42f31b7bb0..d638a2c689cf 100644 > --- a/include/linux/mmc/card.h > +++ b/include/linux/mmc/card.h > @@ -190,6 +190,13 @@ struct sd_switch_caps { > #define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) > #define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) > #define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) > + unsigned int sd4_curr_limit; > +#define SD4_SET_POWER_LIMIT_0_72W 0 > +#define SD4_SET_POWER_LIMIT_1_44W 1 > +#define SD4_SET_POWER_LIMIT_2_16W 2 > +#define SD4_SET_POWER_LIMIT_2_88W 3 > +#define SD4_SET_POWER_LIMIT_1_80W 4 > +#define SD4_SET_POWER_NO_CHANGE (-1) > }; > > struct sd_ext_reg { > @@ -213,7 +220,35 @@ struct sd_ext_reg { > > struct sd_uhs2_config { > u32 node_id; > - /* TODO: Extend with more register configs. */ > + > + u32 dap; > + u32 gap; > + u32 n_fcu; > + u32 maxblk_len; > + u8 n_lanes; > + u8 dadr_len; > + u8 app_type; > + u8 phy_minor_rev; > + u8 phy_major_rev; > + u8 can_hibernate; > + u8 n_lss_sync; > + u8 n_lss_dir; > + u8 link_minor_rev; > + u8 link_major_rev; > + u8 dev_type; > + u8 n_data_gap; > + > + u32 n_fcu_set; > + u32 maxblk_len_set; > + u8 n_lanes_set; > + u8 speed_range_set; > + u8 n_lss_sync_set; > + u8 n_lss_dir_set; > + u8 n_data_gap_set; > + u8 pwrctrl_mode_set; > + u8 max_retry_set; > + > + u8 cfg_complete; > }; > > struct sdio_cccr { > @@ -323,6 +358,9 @@ struct mmc_card { > struct sd_ext_reg ext_perf; /* SD extension reg for PERF */ > > struct sd_uhs2_config uhs2_config; /* SD UHS-II config */ > + u8 uhs2_state; /* SD UHS-II states */ > +#define MMC_UHS2_INITIALIZED BIT(1) > +#define MMC_UHS2_SPEED_B BIT(2) > > unsigned int sdio_funcs; /* number of SDIO functions */ > atomic_t sdio_funcs_probed; /* number of probed SDIO funcs */ > @@ -364,4 +402,6 @@ bool mmc_card_is_blockaddr(struct mmc_card *card); > #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) > #define mmc_card_sd_combo(c) ((c)->type == MMC_TYPE_SD_COMBO) > > +#define mmc_card_can_poweroff_notify(c) ((c)->ext_power.feature_support & SD_EXT_POWER_OFF_NOTIFY) > + > #endif /* LINUX_MMC_CARD_H */ > diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h > index 6efec0b9820c..2a0581d87706 100644 > --- a/include/linux/mmc/core.h > +++ b/include/linux/mmc/core.h > @@ -23,6 +23,14 @@ enum mmc_blk_status { > MMC_BLK_NEW_REQUEST, > }; > > +struct uhs2_command { > + u16 header; > + u16 arg; > + __be32 *payload; > + u32 payload_len; > + u32 packet_len; > +}; > + > struct mmc_command { > u32 opcode; > u32 arg; > @@ -109,6 +117,11 @@ struct mmc_command { > unsigned int busy_timeout; /* busy detect timeout in ms */ > struct mmc_data *data; /* data segment associated with cmd */ > struct mmc_request *mrq; /* associated request */ > + > + struct uhs2_command *uhs2_cmd; /* UHS2 command */ > + u8 *uhs2_resp; /* UHS2 native cmd resp */ > + u8 uhs2_resp_len; /* UHS2 native cmd resp len */ > + u8 uhs2_tmode0_flag; /* UHS2 transfer mode flag */ > }; > > struct mmc_data { > diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h > index 895bcf7f80b7..249a9414ad10 100644 > --- a/include/linux/mmc/host.h > +++ b/include/linux/mmc/host.h > @@ -16,6 +16,7 @@ > #include <linux/mmc/pm.h> > #include <linux/dma-direction.h> > #include <linux/blk-crypto-profile.h> > +#include <linux/mmc/sd_uhs2.h> > > struct mmc_ios { > unsigned int clock; /* clock rate */ > @@ -96,7 +97,48 @@ struct mmc_clk_phase_map { > }; > > struct sd_uhs2_caps { > - /* TODO: Add UHS-II capabilities for the host. */ > + u32 dap; > + u32 gap; > + u32 group_desc; > + u32 maxblk_len; > + u32 n_fcu; > + u8 n_lanes; > + u8 addr64; > + u8 card_type; > + u8 phy_rev; > + u8 speed_range; > + u8 can_hibernate; > + u8 n_lss_sync; > + u8 n_lss_dir; > + u8 link_rev; > + u8 host_type; > + u8 n_data_gap; > + > + u32 maxblk_len_set; > + u32 n_fcu_set; > + u8 n_lanes_set; > + u8 n_lss_sync_set; > + u8 n_lss_dir_set; > + u8 n_data_gap_set; > + u8 max_retry_set; > +}; > + > +struct sd_uhs2_ios { > + bool is_2L_HD_mode; > + bool is_APP_CMD; > + unsigned int power_delay_ms; /* waiting for stable power */ > +}; > + > +enum sd_uhs2_operation { > + UHS2_PHY_INIT = 0, > + UHS2_SET_CONFIG, > + UHS2_ENABLE_INT, > + UHS2_DISABLE_INT, > + UHS2_ENABLE_CLK, > + UHS2_DISABLE_CLK, > + UHS2_CHECK_DORMANT, > + UHS2_SET_SPEED_B, > + UHS2_POST_ATTACH_SD, > }; > > struct mmc_host; > @@ -231,6 +273,20 @@ struct mmc_host_ops { > > /* Initialize an SD express card, mandatory for MMC_CAP2_SD_EXP. */ > int (*init_sd_express)(struct mmc_host *host, struct mmc_ios *ios); > + > + /* UHS2 interfaces */ > + int (*uhs2_detect_init)(struct mmc_host *host); Never called? > + int (*uhs2_set_reg)(struct mmc_host *host, enum sd_uhs2_operation act); Never called? > + int (*uhs2_disable_clk)(struct mmc_host *host); Never called? > + int (*uhs2_enable_clk)(struct mmc_host *host); Never called? > + > + /* > + * The uhs2_control callback is used to execute SD UHS-II specific > + * operations. It's mandatory to implement for hosts that supports the > + * SD UHS-II interface (MMC_CAP2_SD_UHS2). Expected return values are a > + * negative errno in case of a failure or zero for success. > + */ > + int (*uhs2_control)(struct mmc_host *host, enum sd_uhs2_operation op); > }; > > struct mmc_cqe_ops { > @@ -323,6 +379,7 @@ struct mmc_pwrseq; > > struct mmc_supply { > struct regulator *vmmc; /* Card power supply */ > + struct regulator *vmmc2; /* UHS2 VDD2 power supply */ > struct regulator *vqmmc; /* Optional Vccq supply */ > struct regulator *vqmmc2; /* Optional supply for phy */ > }; > @@ -344,10 +401,12 @@ struct mmc_host { > u32 ocr_avail_sdio; /* SDIO-specific OCR */ > u32 ocr_avail_sd; /* SD-specific OCR */ > u32 ocr_avail_mmc; /* MMC-specific OCR */ > + u32 ocr_avail_uhs2; /* UHS2-specific OCR */ > struct wakeup_source *ws; /* Enable consume of uevents */ > u32 max_current_330; > u32 max_current_300; > u32 max_current_180; > + u32 max_current_180_vdd2; /* UHS2 vdd2 max curt. */ > > #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ > #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ > @@ -366,6 +425,7 @@ struct mmc_host { > #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ > #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ > #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ > +#define MMC_VDD2_165_195 0x00000080 /* UHS2 VDD2 1.65 ~ 1.95 */ > > u32 caps; /* Host capabilities */ > > @@ -443,7 +503,12 @@ struct mmc_host { > #endif > #define MMC_CAP2_ALT_GPT_TEGRA (1 << 28) /* Host with eMMC that has GPT entry at a non-standard location */ > > + int flags; > +#define MMC_UHS2_SUPPORT (1 << 0) MMC_UHS2_SUPPORT is getting mixed up with MMC_UHS2_INITIALIZED. Both have the same value, but MMC_UHS2_SUPPORT is for host->flags and MMC_UHS2_INITIALIZED is for card->uhs2_state Please use the correct flag with the correct variable. > +#define MMC_UHS2_2L_HD (1 << 2) MMC_UHS2_2L_HD does not seem to be used. Is it needed? > + > struct sd_uhs2_caps uhs2_caps; /* Host UHS-II capabilities */ > + struct sd_uhs2_ios uhs2_ios; /* Host UHS-II capabilities */ > > int fixed_drv_type; /* fixed driver type for non-removable media */ > > @@ -695,4 +760,7 @@ int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); > int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); > int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); > > +#define mmc_uhs2_2L_HD_mode(h) ((h)->uhs2_ios.is_2L_HD_mode) > +#define mmc_uhs2_APP_cmd(h) ((h)->uhs2_ios.is_APP_CMD) > + > #endif /* LINUX_MMC_HOST_H */ > diff --git a/include/linux/mmc/sd_uhs2.h b/include/linux/mmc/sd_uhs2.h > new file mode 100644 > index 000000000000..8fcf702cf4a5 > --- /dev/null > +++ b/include/linux/mmc/sd_uhs2.h > @@ -0,0 +1,263 @@ > +/* SPDX-License-Identifier: GPL-2.0-or-later */ > +/* > + * Header file for UHS-II packets, Host Controller registers and I/O > + * accessors. > + * > + * Copyright (C) 2014 Intel Corp, All Rights Reserved. > + */ > +#ifndef LINUX_MMC_UHS2_H > +#define LINUX_MMC_UHS2_H > + > +/* LINK Layer definition */ > +/* > + * UHS2 Header: > + * Refer to UHS-II Addendum Version 1.02 Figure 5-2, the format of CCMD Header is described below: > + * bit [3:0] : DID(Destination ID = Node ID of UHS2 card) > + * bit [6:4] : TYP(Packet Type) > + * 000b: CCMD(Control command packet) > + * 001b: DCMD(Data command packet) > + * 010b: RES(Response packet) > + * 011b: DATA(Data payload packet) > + * 111b: MSG(Message packet) > + * Others: Reserved > + * bit [7] : NP(Native Packet) > + * bit [10:8] : TID(Transaction ID) > + * bit [11] : Reserved > + * bit [15:12]: SID(Source ID 0: Node ID of Host) > + * > + * Broadcast CCMD issued by Host is represented as DID=SID=0. > + */ > +/* > + * UHS2 Argument: > + * Refer to UHS-II Addendum Version 1.02 Figure 6-5, the format of CCMD Argument is described below: > + * bit [3:0] : MSB of IOADR > + * bit [5:4] : PLEN(Payload Length) > + * 00b: 0 byte > + * 01b: 4 bytes > + * 10b: 8 bytes > + * 11b: 16 bytes > + * bit [6] : Reserved > + * bit [7] : R/W(Read/Write) > + * 0: Control read command > + * 1: Control write command > + * bit [15:8] : LSB of IOADR > + * > + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > + */ > +#define UHS2_NATIVE_PACKET_POS 7 > +#define UHS2_NATIVE_PACKET (1 << UHS2_NATIVE_PACKET_POS) > + > +#define UHS2_PACKET_TYPE_POS 4 > +#define UHS2_PACKET_TYPE_CCMD (0 << UHS2_PACKET_TYPE_POS) > +#define UHS2_PACKET_TYPE_DCMD (1 << UHS2_PACKET_TYPE_POS) > +#define UHS2_PACKET_TYPE_RES (2 << UHS2_PACKET_TYPE_POS) > +#define UHS2_PACKET_TYPE_DATA (3 << UHS2_PACKET_TYPE_POS) > +#define UHS2_PACKET_TYPE_MSG (7 << UHS2_PACKET_TYPE_POS) > + > +#define UHS2_DEST_ID_MASK 0x0F > +#define UHS2_DEST_ID 0x1 > + > +#define UHS2_SRC_ID_POS 12 > +#define UHS2_SRC_ID_MASK 0xF000 > + > +#define UHS2_TRANS_ID_POS 8 > +#define UHS2_TRANS_ID_MASK 0x0700 > + > +/* UHS2 MSG */ > +#define UHS2_MSG_CTG_POS 5 > +#define UHS2_MSG_CTG_LMSG 0x00 > +#define UHS2_MSG_CTG_INT 0x60 > +#define UHS2_MSG_CTG_AMSG 0x80 > + > +#define UHS2_MSG_CTG_FCREQ 0x00 > +#define UHS2_MSG_CTG_FCRDY 0x01 > +#define UHS2_MSG_CTG_STAT 0x02 > + > +#define UHS2_MSG_CODE_POS 8 > +#define UHS2_MSG_CODE_FC_UNRECOVER_ERR 0x8 > +#define UHS2_MSG_CODE_STAT_UNRECOVER_ERR 0x8 > +#define UHS2_MSG_CODE_STAT_RECOVER_ERR 0x1 > + > +/* TRANS Layer definition */ > + > +/* Native packets*/ > +#define UHS2_NATIVE_CMD_RW_POS 7 > +#define UHS2_NATIVE_CMD_WRITE (1 << UHS2_NATIVE_CMD_RW_POS) > +#define UHS2_NATIVE_CMD_READ (0 << UHS2_NATIVE_CMD_RW_POS) > + > +#define UHS2_NATIVE_CMD_PLEN_POS 4 > +#define UHS2_NATIVE_CMD_PLEN_4B (1 << UHS2_NATIVE_CMD_PLEN_POS) > +#define UHS2_NATIVE_CMD_PLEN_8B (2 << UHS2_NATIVE_CMD_PLEN_POS) > +#define UHS2_NATIVE_CMD_PLEN_16B (3 << UHS2_NATIVE_CMD_PLEN_POS) > + > +#define UHS2_NATIVE_CCMD_GET_MIOADR_MASK 0xF00 > +#define UHS2_NATIVE_CCMD_MIOADR_MASK 0x0F > + > +#define UHS2_NATIVE_CCMD_LIOADR_POS 8 > +#define UHS2_NATIVE_CCMD_GET_LIOADR_MASK 0x0FF > + > +#define UHS2_CCMD_DEV_INIT_COMPLETE_FLAG BIT(11) > +#define UHS2_DEV_INIT_PAYLOAD_LEN 1 > +#define UHS2_DEV_INIT_RESP_LEN 6 > +#define UHS2_DEV_ENUM_PAYLOAD_LEN 1 > +#define UHS2_DEV_ENUM_RESP_LEN 8 > +#define UHS2_CFG_WRITE_PAYLOAD_LEN 2 > +#define UHS2_CFG_WRITE_PHY_SET_RESP_LEN 4 > +#define UHS2_CFG_WRITE_GENERIC_SET_RESP_LEN 5 > +#define UHS2_GO_DORMANT_PAYLOAD_LEN 1 > + > +/* > + * UHS2 Argument: > + * Refer to UHS-II Addendum Version 1.02 Figure 6-8, the format of DCMD Argument is described below: > + * bit [3:0] : Reserved > + * bit [6:3] : TMODE(Transfer Mode) > + * bit 3: DAM(Data Access Mode) > + * bit 4: TLUM(TLEN Unit Mode) > + * bit 5: LM(Length Mode) > + * bit 6: DM(Duplex Mode) > + * bit [7] : R/W(Read/Write) > + * 0: Control read command > + * 1: Control write command > + * bit [15:8] : Reserved > + * > + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > + */ > +#define UHS2_DCMD_DM_POS 6 > +#define UHS2_DCMD_2L_HD_MODE (1 << UHS2_DCMD_DM_POS) > +#define UHS2_DCMD_LM_POS 5 > +#define UHS2_DCMD_LM_TLEN_EXIST (1 << UHS2_DCMD_LM_POS) > +#define UHS2_DCMD_TLUM_POS 4 > +#define UHS2_DCMD_TLUM_BYTE_MODE (1 << UHS2_DCMD_TLUM_POS) > +#define UHS2_NATIVE_DCMD_DAM_POS 3 > +#define UHS2_NATIVE_DCMD_DAM_IO (1 << UHS2_NATIVE_DCMD_DAM_POS) > + > +/* > + * Per UHS2 spec, DCMD payload should be MSB first. There may be > + * two types of data be assembled to MSB: > + * 1. TLEN: Input block size for single read/write and number of blocks > + * for multiple read/write to calculate TLEN as MSB first per spec. > + * 2. SD command argument. > + */ > +static inline __be32 uhs2_dcmd_convert_msb(u32 input) > +{ > + u32 ret = 0; > + > + ret = ((input & 0xFF) << 24) | > + (((input >> 8) & 0xFF) << 16) | > + (((input >> 16) & 0xFF) << 8) | > + ((input >> 24) & 0xFF); > + return cpu_to_be32(ret); > +} > + > +#define UHS2_RES_NACK_POS 7 > +#define UHS2_RES_NACK_MASK (0x1 << UHS2_RES_NACK_POS) > + > +#define UHS2_RES_ECODE_POS 4 > +#define UHS2_RES_ECODE_MASK 0x7 > +#define UHS2_RES_ECODE_COND 1 > +#define UHS2_RES_ECODE_ARG 2 > +#define UHS2_RES_ECODE_GEN 3 > + > +/* IOADR of device registers */ > +#define UHS2_IOADR_GENERIC_CAPS 0x00 > +#define UHS2_IOADR_PHY_CAPS 0x02 > +#define UHS2_IOADR_LINK_CAPS 0x04 > +#define UHS2_IOADR_RSV_CAPS 0x06 > +#define UHS2_IOADR_GENERIC_SETTINGS 0x08 > +#define UHS2_IOADR_PHY_SETTINGS 0x0A > +#define UHS2_IOADR_LINK_SETTINGS 0x0C > +#define UHS2_IOADR_PRESET 0x40 > + > +/* SD application packets */ > +#define UHS2_SD_CMD_INDEX_POS 8 > + > +#define UHS2_SD_CMD_APP_POS 14 > +#define UHS2_SD_CMD_APP (1 << UHS2_SD_CMD_APP_POS) > + > +/* UHS-II Device Registers */ > +#define UHS2_DEV_CONFIG_REG 0x000 > + > +/* General Caps and Settings registers */ > +#define UHS2_DEV_CONFIG_GEN_CAPS (UHS2_DEV_CONFIG_REG + 0x000) > +#define UHS2_DEV_CONFIG_N_LANES_POS 8 > +#define UHS2_DEV_CONFIG_N_LANES_MASK 0x3F > +#define UHS2_DEV_CONFIG_2L_HD_FD 0x1 > +#define UHS2_DEV_CONFIG_2D1U_FD 0x2 > +#define UHS2_DEV_CONFIG_1D2U_FD 0x4 > +#define UHS2_DEV_CONFIG_2D2U_FD 0x8 > +#define UHS2_DEV_CONFIG_DADR_POS 14 > +#define UHS2_DEV_CONFIG_DADR_MASK 0x1 > +#define UHS2_DEV_CONFIG_APP_POS 16 > +#define UHS2_DEV_CONFIG_APP_MASK 0xFF > +#define UHS2_DEV_CONFIG_APP_SD_MEM 0x1 > + > +#define UHS2_DEV_CONFIG_GEN_SET (UHS2_DEV_CONFIG_REG + 0x008) > +#define UHS2_DEV_CONFIG_GEN_SET_N_LANES_POS 8 > +#define UHS2_DEV_CONFIG_GEN_SET_2L_FD_HD 0x0 > +#define UHS2_DEV_CONFIG_GEN_SET_2D1U_FD 0x2 > +#define UHS2_DEV_CONFIG_GEN_SET_1D2U_FD 0x3 > +#define UHS2_DEV_CONFIG_GEN_SET_2D2U_FD 0x4 > +#define UHS2_DEV_CONFIG_GEN_SET_CFG_COMPLETE BIT(31) > + > +/* PHY Caps and Settings registers */ > +#define UHS2_DEV_CONFIG_PHY_CAPS (UHS2_DEV_CONFIG_REG + 0x002) > +#define UHS2_DEV_CONFIG_PHY_MINOR_MASK 0xF > +#define UHS2_DEV_CONFIG_PHY_MAJOR_POS 4 > +#define UHS2_DEV_CONFIG_PHY_MAJOR_MASK 0x3 > +#define UHS2_DEV_CONFIG_CAN_HIBER_POS 15 > +#define UHS2_DEV_CONFIG_CAN_HIBER_MASK 0x1 > +#define UHS2_DEV_CONFIG_PHY_CAPS1 (UHS2_DEV_CONFIG_REG + 0x003) > +#define UHS2_DEV_CONFIG_N_LSS_SYN_MASK 0xF > +#define UHS2_DEV_CONFIG_N_LSS_DIR_POS 4 > +#define UHS2_DEV_CONFIG_N_LSS_DIR_MASK 0xF > + > +#define UHS2_DEV_CONFIG_PHY_SET (UHS2_DEV_CONFIG_REG + 0x00A) > +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_POS 6 > +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_A 0x0 > +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_B 0x1 > + > +/* LINK-TRAN Caps and Settings registers */ > +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS (UHS2_DEV_CONFIG_REG + 0x004) > +#define UHS2_DEV_CONFIG_LT_MINOR_MASK 0xF > +#define UHS2_DEV_CONFIG_LT_MAJOR_POS 4 > +#define UHS2_DEV_CONFIG_LT_MAJOR_MASK 0x3 > +#define UHS2_DEV_CONFIG_N_FCU_POS 8 > +#define UHS2_DEV_CONFIG_N_FCU_MASK 0xFF > +#define UHS2_DEV_CONFIG_DEV_TYPE_POS 16 > +#define UHS2_DEV_CONFIG_DEV_TYPE_MASK 0x7 > +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_POS 20 > +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_MASK 0xFFF > +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS1 (UHS2_DEV_CONFIG_REG + 0x005) > +#define UHS2_DEV_CONFIG_N_DATA_GAP_MASK 0xFF > + > +#define UHS2_DEV_CONFIG_LINK_TRAN_SET (UHS2_DEV_CONFIG_REG + 0x00C) > +#define UHS2_DEV_CONFIG_LT_SET_MAX_BLK_LEN 0x200 > +#define UHS2_DEV_CONFIG_LT_SET_MAX_RETRY_POS 16 > + > +/* Preset register */ > +#define UHS2_DEV_CONFIG_PRESET (UHS2_DEV_CONFIG_REG + 0x040) > + > +#define UHS2_DEV_INT_REG 0x100 > + > +#define UHS2_DEV_STATUS_REG 0x180 > + > +#define UHS2_DEV_CMD_REG 0x200 > +#define UHS2_DEV_CMD_FULL_RESET (UHS2_DEV_CMD_REG + 0x000) > +#define UHS2_DEV_CMD_GO_DORMANT_STATE (UHS2_DEV_CMD_REG + 0x001) > +#define UHS2_DEV_CMD_DORMANT_HIBER BIT(7) > +#define UHS2_DEV_CMD_DEVICE_INIT (UHS2_DEV_CMD_REG + 0x002) > +#define UHS2_DEV_INIT_COMPLETE_FLAG BIT(11) > +#define UHS2_DEV_CMD_ENUMERATE (UHS2_DEV_CMD_REG + 0x003) > +#define UHS2_DEV_CMD_TRANS_ABORT (UHS2_DEV_CMD_REG + 0x004) > + > +#define UHS2_RCLK_MAX 52000000 > +#define UHS2_RCLK_MIN 26000000 > + > +struct sd_uhs2_wait_active_state_data { > + struct mmc_host *host; > + struct mmc_command *cmd; > +}; > + > +#endif /* LINUX_MMC_UHS2_H */
Hi, Adrian On Wed, Nov 2, 2022 at 1:12 AM Adrian Hunter <adrian.hunter@intel.com> wrote: > > On 19/10/22 14:06, Victor Shih wrote: > > Add UHS-II specific data structures for commands and defines for > > registers, as described in Part 1 UHS-II Addendum Version 1.01. > > > > UHS-II related definitions are listed below: > > 1. UHS-II card capability: sd_uhs2_caps{} > > 2. UHS-II configuration: sd_uhs2_config{} > > 3. UHS-II Command structure: uhs2_command{} > > 4. UHS-II register I/O address and register field definitions: sd_uhs2.h > > > > Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> > > Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw> > > Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> > > --- > > > > Updates in V5: > > - Added UHS2 interfaces in mmc_host_ops: host.h > > - Added UHS2 VDD2 power supply in mmc_supply: host.h > > - Added UHS2-specific OCR and UHS2 VDD2 max current in mmc_host: host.h > > - Added definition of UHS2 VDD2 1.65v-1.95v in mmc_host: host.h > > - Added flags/MMC_UHS2_SUPPORT/MMC_UHS2_2L_HD in mmc_host: host.h > > --- > > include/linux/mmc/card.h | 42 +++++- > > include/linux/mmc/core.h | 13 ++ > > include/linux/mmc/host.h | 70 +++++++++- > > include/linux/mmc/sd_uhs2.h | 263 ++++++++++++++++++++++++++++++++++++ > > 4 files changed, 386 insertions(+), 2 deletions(-) > > create mode 100644 include/linux/mmc/sd_uhs2.h > > > > diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h > > index 4a42f31b7bb0..d638a2c689cf 100644 > > --- a/include/linux/mmc/card.h > > +++ b/include/linux/mmc/card.h > > @@ -190,6 +190,13 @@ struct sd_switch_caps { > > #define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) > > #define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) > > #define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) > > + unsigned int sd4_curr_limit; > > +#define SD4_SET_POWER_LIMIT_0_72W 0 > > +#define SD4_SET_POWER_LIMIT_1_44W 1 > > +#define SD4_SET_POWER_LIMIT_2_16W 2 > > +#define SD4_SET_POWER_LIMIT_2_88W 3 > > +#define SD4_SET_POWER_LIMIT_1_80W 4 > > +#define SD4_SET_POWER_NO_CHANGE (-1) > > }; > > > > struct sd_ext_reg { > > @@ -213,7 +220,35 @@ struct sd_ext_reg { > > > > struct sd_uhs2_config { > > u32 node_id; > > - /* TODO: Extend with more register configs. */ > > + > > + u32 dap; > > + u32 gap; > > + u32 n_fcu; > > + u32 maxblk_len; > > + u8 n_lanes; > > + u8 dadr_len; > > + u8 app_type; > > + u8 phy_minor_rev; > > + u8 phy_major_rev; > > + u8 can_hibernate; > > + u8 n_lss_sync; > > + u8 n_lss_dir; > > + u8 link_minor_rev; > > + u8 link_major_rev; > > + u8 dev_type; > > + u8 n_data_gap; > > + > > + u32 n_fcu_set; > > + u32 maxblk_len_set; > > + u8 n_lanes_set; > > + u8 speed_range_set; > > + u8 n_lss_sync_set; > > + u8 n_lss_dir_set; > > + u8 n_data_gap_set; > > + u8 pwrctrl_mode_set; > > + u8 max_retry_set; > > + > > + u8 cfg_complete; > > }; > > > > struct sdio_cccr { > > @@ -323,6 +358,9 @@ struct mmc_card { > > struct sd_ext_reg ext_perf; /* SD extension reg for PERF */ > > > > struct sd_uhs2_config uhs2_config; /* SD UHS-II config */ > > + u8 uhs2_state; /* SD UHS-II states */ > > +#define MMC_UHS2_INITIALIZED BIT(1) > > +#define MMC_UHS2_SPEED_B BIT(2) > > > > unsigned int sdio_funcs; /* number of SDIO functions */ > > atomic_t sdio_funcs_probed; /* number of probed SDIO funcs */ > > @@ -364,4 +402,6 @@ bool mmc_card_is_blockaddr(struct mmc_card *card); > > #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) > > #define mmc_card_sd_combo(c) ((c)->type == MMC_TYPE_SD_COMBO) > > > > +#define mmc_card_can_poweroff_notify(c) ((c)->ext_power.feature_support & SD_EXT_POWER_OFF_NOTIFY) > > + > > #endif /* LINUX_MMC_CARD_H */ > > diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h > > index 6efec0b9820c..2a0581d87706 100644 > > --- a/include/linux/mmc/core.h > > +++ b/include/linux/mmc/core.h > > @@ -23,6 +23,14 @@ enum mmc_blk_status { > > MMC_BLK_NEW_REQUEST, > > }; > > > > +struct uhs2_command { > > + u16 header; > > + u16 arg; > > + __be32 *payload; > > + u32 payload_len; > > + u32 packet_len; > > +}; > > + > > struct mmc_command { > > u32 opcode; > > u32 arg; > > @@ -109,6 +117,11 @@ struct mmc_command { > > unsigned int busy_timeout; /* busy detect timeout in ms */ > > struct mmc_data *data; /* data segment associated with cmd */ > > struct mmc_request *mrq; /* associated request */ > > + > > + struct uhs2_command *uhs2_cmd; /* UHS2 command */ > > + u8 *uhs2_resp; /* UHS2 native cmd resp */ > > + u8 uhs2_resp_len; /* UHS2 native cmd resp len */ > > + u8 uhs2_tmode0_flag; /* UHS2 transfer mode flag */ > > }; > > > > struct mmc_data { > > diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h > > index 895bcf7f80b7..249a9414ad10 100644 > > --- a/include/linux/mmc/host.h > > +++ b/include/linux/mmc/host.h > > @@ -16,6 +16,7 @@ > > #include <linux/mmc/pm.h> > > #include <linux/dma-direction.h> > > #include <linux/blk-crypto-profile.h> > > +#include <linux/mmc/sd_uhs2.h> > > > > struct mmc_ios { > > unsigned int clock; /* clock rate */ > > @@ -96,7 +97,48 @@ struct mmc_clk_phase_map { > > }; > > > > struct sd_uhs2_caps { > > - /* TODO: Add UHS-II capabilities for the host. */ > > + u32 dap; > > + u32 gap; > > + u32 group_desc; > > + u32 maxblk_len; > > + u32 n_fcu; > > + u8 n_lanes; > > + u8 addr64; > > + u8 card_type; > > + u8 phy_rev; > > + u8 speed_range; > > + u8 can_hibernate; > > + u8 n_lss_sync; > > + u8 n_lss_dir; > > + u8 link_rev; > > + u8 host_type; > > + u8 n_data_gap; > > + > > + u32 maxblk_len_set; > > + u32 n_fcu_set; > > + u8 n_lanes_set; > > + u8 n_lss_sync_set; > > + u8 n_lss_dir_set; > > + u8 n_data_gap_set; > > + u8 max_retry_set; > > +}; > > + > > +struct sd_uhs2_ios { > > + bool is_2L_HD_mode; > > + bool is_APP_CMD; > > + unsigned int power_delay_ms; /* waiting for stable power */ > > +}; > > + > > +enum sd_uhs2_operation { > > + UHS2_PHY_INIT = 0, > > + UHS2_SET_CONFIG, > > + UHS2_ENABLE_INT, > > + UHS2_DISABLE_INT, > > + UHS2_ENABLE_CLK, > > + UHS2_DISABLE_CLK, > > + UHS2_CHECK_DORMANT, > > + UHS2_SET_SPEED_B, > > + UHS2_POST_ATTACH_SD, > > }; > > > > struct mmc_host; > > @@ -231,6 +273,20 @@ struct mmc_host_ops { > > > > /* Initialize an SD express card, mandatory for MMC_CAP2_SD_EXP. */ > > int (*init_sd_express)(struct mmc_host *host, struct mmc_ios *ios); > > + > > + /* UHS2 interfaces */ > > + int (*uhs2_detect_init)(struct mmc_host *host); > > Never called? Yes, I will delete it. > > > + int (*uhs2_set_reg)(struct mmc_host *host, enum sd_uhs2_operation act); > > Never called? Yes, I will delete it. > > > + int (*uhs2_disable_clk)(struct mmc_host *host); > > Never called? Yes, I will delete it. > > > + int (*uhs2_enable_clk)(struct mmc_host *host); > > Never called? Yes, I will delete it. > > > + > > + /* > > + * The uhs2_control callback is used to execute SD UHS-II specific > > + * operations. It's mandatory to implement for hosts that supports the > > + * SD UHS-II interface (MMC_CAP2_SD_UHS2). Expected return values are a > > + * negative errno in case of a failure or zero for success. > > + */ > > + int (*uhs2_control)(struct mmc_host *host, enum sd_uhs2_operation op); > > }; > > > > struct mmc_cqe_ops { > > @@ -323,6 +379,7 @@ struct mmc_pwrseq; > > > > struct mmc_supply { > > struct regulator *vmmc; /* Card power supply */ > > + struct regulator *vmmc2; /* UHS2 VDD2 power supply */ > > struct regulator *vqmmc; /* Optional Vccq supply */ > > struct regulator *vqmmc2; /* Optional supply for phy */ > > }; > > @@ -344,10 +401,12 @@ struct mmc_host { > > u32 ocr_avail_sdio; /* SDIO-specific OCR */ > > u32 ocr_avail_sd; /* SD-specific OCR */ > > u32 ocr_avail_mmc; /* MMC-specific OCR */ > > + u32 ocr_avail_uhs2; /* UHS2-specific OCR */ > > struct wakeup_source *ws; /* Enable consume of uevents */ > > u32 max_current_330; > > u32 max_current_300; > > u32 max_current_180; > > + u32 max_current_180_vdd2; /* UHS2 vdd2 max curt. */ > > > > #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ > > #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ > > @@ -366,6 +425,7 @@ struct mmc_host { > > #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ > > #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ > > #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ > > +#define MMC_VDD2_165_195 0x00000080 /* UHS2 VDD2 1.65 ~ 1.95 */ > > > > u32 caps; /* Host capabilities */ > > > > @@ -443,7 +503,12 @@ struct mmc_host { > > #endif > > #define MMC_CAP2_ALT_GPT_TEGRA (1 << 28) /* Host with eMMC that has GPT entry at a non-standard location */ > > > > + int flags; > > +#define MMC_UHS2_SUPPORT (1 << 0) > > MMC_UHS2_SUPPORT is getting mixed up with MMC_UHS2_INITIALIZED. > Both have the same value, but MMC_UHS2_SUPPORT is for > host->flags and MMC_UHS2_INITIALIZED is for card->uhs2_state > > Please use the correct flag with the correct variable. > The value of MMC_UHS2_SUPPORT is (1<<0) and the value of MMC_UHS2_INITIALIZED is BIT(1). Both have different values, therefore I'm not sure what you mean. May you give me some more advice? Thanks. > > +#define MMC_UHS2_2L_HD (1 << 2) > > MMC_UHS2_2L_HD does not seem to be used. Is it needed? I confirmed this, I don't use it, I will delete it. > > > + > > struct sd_uhs2_caps uhs2_caps; /* Host UHS-II capabilities */ > > + struct sd_uhs2_ios uhs2_ios; /* Host UHS-II capabilities */ > > > > int fixed_drv_type; /* fixed driver type for non-removable media */ > > > > @@ -695,4 +760,7 @@ int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); > > int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); > > int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); > > > > +#define mmc_uhs2_2L_HD_mode(h) ((h)->uhs2_ios.is_2L_HD_mode) > > +#define mmc_uhs2_APP_cmd(h) ((h)->uhs2_ios.is_APP_CMD) > > + > > #endif /* LINUX_MMC_HOST_H */ > > diff --git a/include/linux/mmc/sd_uhs2.h b/include/linux/mmc/sd_uhs2.h > > new file mode 100644 > > index 000000000000..8fcf702cf4a5 > > --- /dev/null > > +++ b/include/linux/mmc/sd_uhs2.h > > @@ -0,0 +1,263 @@ > > +/* SPDX-License-Identifier: GPL-2.0-or-later */ > > +/* > > + * Header file for UHS-II packets, Host Controller registers and I/O > > + * accessors. > > + * > > + * Copyright (C) 2014 Intel Corp, All Rights Reserved. > > + */ > > +#ifndef LINUX_MMC_UHS2_H > > +#define LINUX_MMC_UHS2_H > > + > > +/* LINK Layer definition */ > > +/* > > + * UHS2 Header: > > + * Refer to UHS-II Addendum Version 1.02 Figure 5-2, the format of CCMD Header is described below: > > + * bit [3:0] : DID(Destination ID = Node ID of UHS2 card) > > + * bit [6:4] : TYP(Packet Type) > > + * 000b: CCMD(Control command packet) > > + * 001b: DCMD(Data command packet) > > + * 010b: RES(Response packet) > > + * 011b: DATA(Data payload packet) > > + * 111b: MSG(Message packet) > > + * Others: Reserved > > + * bit [7] : NP(Native Packet) > > + * bit [10:8] : TID(Transaction ID) > > + * bit [11] : Reserved > > + * bit [15:12]: SID(Source ID 0: Node ID of Host) > > + * > > + * Broadcast CCMD issued by Host is represented as DID=SID=0. > > + */ > > +/* > > + * UHS2 Argument: > > + * Refer to UHS-II Addendum Version 1.02 Figure 6-5, the format of CCMD Argument is described below: > > + * bit [3:0] : MSB of IOADR > > + * bit [5:4] : PLEN(Payload Length) > > + * 00b: 0 byte > > + * 01b: 4 bytes > > + * 10b: 8 bytes > > + * 11b: 16 bytes > > + * bit [6] : Reserved > > + * bit [7] : R/W(Read/Write) > > + * 0: Control read command > > + * 1: Control write command > > + * bit [15:8] : LSB of IOADR > > + * > > + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > > + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > > + */ > > +#define UHS2_NATIVE_PACKET_POS 7 > > +#define UHS2_NATIVE_PACKET (1 << UHS2_NATIVE_PACKET_POS) > > + > > +#define UHS2_PACKET_TYPE_POS 4 > > +#define UHS2_PACKET_TYPE_CCMD (0 << UHS2_PACKET_TYPE_POS) > > +#define UHS2_PACKET_TYPE_DCMD (1 << UHS2_PACKET_TYPE_POS) > > +#define UHS2_PACKET_TYPE_RES (2 << UHS2_PACKET_TYPE_POS) > > +#define UHS2_PACKET_TYPE_DATA (3 << UHS2_PACKET_TYPE_POS) > > +#define UHS2_PACKET_TYPE_MSG (7 << UHS2_PACKET_TYPE_POS) > > + > > +#define UHS2_DEST_ID_MASK 0x0F > > +#define UHS2_DEST_ID 0x1 > > + > > +#define UHS2_SRC_ID_POS 12 > > +#define UHS2_SRC_ID_MASK 0xF000 > > + > > +#define UHS2_TRANS_ID_POS 8 > > +#define UHS2_TRANS_ID_MASK 0x0700 > > + > > +/* UHS2 MSG */ > > +#define UHS2_MSG_CTG_POS 5 > > +#define UHS2_MSG_CTG_LMSG 0x00 > > +#define UHS2_MSG_CTG_INT 0x60 > > +#define UHS2_MSG_CTG_AMSG 0x80 > > + > > +#define UHS2_MSG_CTG_FCREQ 0x00 > > +#define UHS2_MSG_CTG_FCRDY 0x01 > > +#define UHS2_MSG_CTG_STAT 0x02 > > + > > +#define UHS2_MSG_CODE_POS 8 > > +#define UHS2_MSG_CODE_FC_UNRECOVER_ERR 0x8 > > +#define UHS2_MSG_CODE_STAT_UNRECOVER_ERR 0x8 > > +#define UHS2_MSG_CODE_STAT_RECOVER_ERR 0x1 > > + > > +/* TRANS Layer definition */ > > + > > +/* Native packets*/ > > +#define UHS2_NATIVE_CMD_RW_POS 7 > > +#define UHS2_NATIVE_CMD_WRITE (1 << UHS2_NATIVE_CMD_RW_POS) > > +#define UHS2_NATIVE_CMD_READ (0 << UHS2_NATIVE_CMD_RW_POS) > > + > > +#define UHS2_NATIVE_CMD_PLEN_POS 4 > > +#define UHS2_NATIVE_CMD_PLEN_4B (1 << UHS2_NATIVE_CMD_PLEN_POS) > > +#define UHS2_NATIVE_CMD_PLEN_8B (2 << UHS2_NATIVE_CMD_PLEN_POS) > > +#define UHS2_NATIVE_CMD_PLEN_16B (3 << UHS2_NATIVE_CMD_PLEN_POS) > > + > > +#define UHS2_NATIVE_CCMD_GET_MIOADR_MASK 0xF00 > > +#define UHS2_NATIVE_CCMD_MIOADR_MASK 0x0F > > + > > +#define UHS2_NATIVE_CCMD_LIOADR_POS 8 > > +#define UHS2_NATIVE_CCMD_GET_LIOADR_MASK 0x0FF > > + > > +#define UHS2_CCMD_DEV_INIT_COMPLETE_FLAG BIT(11) > > +#define UHS2_DEV_INIT_PAYLOAD_LEN 1 > > +#define UHS2_DEV_INIT_RESP_LEN 6 > > +#define UHS2_DEV_ENUM_PAYLOAD_LEN 1 > > +#define UHS2_DEV_ENUM_RESP_LEN 8 > > +#define UHS2_CFG_WRITE_PAYLOAD_LEN 2 > > +#define UHS2_CFG_WRITE_PHY_SET_RESP_LEN 4 > > +#define UHS2_CFG_WRITE_GENERIC_SET_RESP_LEN 5 > > +#define UHS2_GO_DORMANT_PAYLOAD_LEN 1 > > + > > +/* > > + * UHS2 Argument: > > + * Refer to UHS-II Addendum Version 1.02 Figure 6-8, the format of DCMD Argument is described below: > > + * bit [3:0] : Reserved > > + * bit [6:3] : TMODE(Transfer Mode) > > + * bit 3: DAM(Data Access Mode) > > + * bit 4: TLUM(TLEN Unit Mode) > > + * bit 5: LM(Length Mode) > > + * bit 6: DM(Duplex Mode) > > + * bit [7] : R/W(Read/Write) > > + * 0: Control read command > > + * 1: Control write command > > + * bit [15:8] : Reserved > > + * > > + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > > + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > > + */ > > +#define UHS2_DCMD_DM_POS 6 > > +#define UHS2_DCMD_2L_HD_MODE (1 << UHS2_DCMD_DM_POS) > > +#define UHS2_DCMD_LM_POS 5 > > +#define UHS2_DCMD_LM_TLEN_EXIST (1 << UHS2_DCMD_LM_POS) > > +#define UHS2_DCMD_TLUM_POS 4 > > +#define UHS2_DCMD_TLUM_BYTE_MODE (1 << UHS2_DCMD_TLUM_POS) > > +#define UHS2_NATIVE_DCMD_DAM_POS 3 > > +#define UHS2_NATIVE_DCMD_DAM_IO (1 << UHS2_NATIVE_DCMD_DAM_POS) > > + > > +/* > > + * Per UHS2 spec, DCMD payload should be MSB first. There may be > > + * two types of data be assembled to MSB: > > + * 1. TLEN: Input block size for single read/write and number of blocks > > + * for multiple read/write to calculate TLEN as MSB first per spec. > > + * 2. SD command argument. > > + */ > > +static inline __be32 uhs2_dcmd_convert_msb(u32 input) > > +{ > > + u32 ret = 0; > > + > > + ret = ((input & 0xFF) << 24) | > > + (((input >> 8) & 0xFF) << 16) | > > + (((input >> 16) & 0xFF) << 8) | > > + ((input >> 24) & 0xFF); > > + return cpu_to_be32(ret); > > +} > > + > > +#define UHS2_RES_NACK_POS 7 > > +#define UHS2_RES_NACK_MASK (0x1 << UHS2_RES_NACK_POS) > > + > > +#define UHS2_RES_ECODE_POS 4 > > +#define UHS2_RES_ECODE_MASK 0x7 > > +#define UHS2_RES_ECODE_COND 1 > > +#define UHS2_RES_ECODE_ARG 2 > > +#define UHS2_RES_ECODE_GEN 3 > > + > > +/* IOADR of device registers */ > > +#define UHS2_IOADR_GENERIC_CAPS 0x00 > > +#define UHS2_IOADR_PHY_CAPS 0x02 > > +#define UHS2_IOADR_LINK_CAPS 0x04 > > +#define UHS2_IOADR_RSV_CAPS 0x06 > > +#define UHS2_IOADR_GENERIC_SETTINGS 0x08 > > +#define UHS2_IOADR_PHY_SETTINGS 0x0A > > +#define UHS2_IOADR_LINK_SETTINGS 0x0C > > +#define UHS2_IOADR_PRESET 0x40 > > + > > +/* SD application packets */ > > +#define UHS2_SD_CMD_INDEX_POS 8 > > + > > +#define UHS2_SD_CMD_APP_POS 14 > > +#define UHS2_SD_CMD_APP (1 << UHS2_SD_CMD_APP_POS) > > + > > +/* UHS-II Device Registers */ > > +#define UHS2_DEV_CONFIG_REG 0x000 > > + > > +/* General Caps and Settings registers */ > > +#define UHS2_DEV_CONFIG_GEN_CAPS (UHS2_DEV_CONFIG_REG + 0x000) > > +#define UHS2_DEV_CONFIG_N_LANES_POS 8 > > +#define UHS2_DEV_CONFIG_N_LANES_MASK 0x3F > > +#define UHS2_DEV_CONFIG_2L_HD_FD 0x1 > > +#define UHS2_DEV_CONFIG_2D1U_FD 0x2 > > +#define UHS2_DEV_CONFIG_1D2U_FD 0x4 > > +#define UHS2_DEV_CONFIG_2D2U_FD 0x8 > > +#define UHS2_DEV_CONFIG_DADR_POS 14 > > +#define UHS2_DEV_CONFIG_DADR_MASK 0x1 > > +#define UHS2_DEV_CONFIG_APP_POS 16 > > +#define UHS2_DEV_CONFIG_APP_MASK 0xFF > > +#define UHS2_DEV_CONFIG_APP_SD_MEM 0x1 > > + > > +#define UHS2_DEV_CONFIG_GEN_SET (UHS2_DEV_CONFIG_REG + 0x008) > > +#define UHS2_DEV_CONFIG_GEN_SET_N_LANES_POS 8 > > +#define UHS2_DEV_CONFIG_GEN_SET_2L_FD_HD 0x0 > > +#define UHS2_DEV_CONFIG_GEN_SET_2D1U_FD 0x2 > > +#define UHS2_DEV_CONFIG_GEN_SET_1D2U_FD 0x3 > > +#define UHS2_DEV_CONFIG_GEN_SET_2D2U_FD 0x4 > > +#define UHS2_DEV_CONFIG_GEN_SET_CFG_COMPLETE BIT(31) > > + > > +/* PHY Caps and Settings registers */ > > +#define UHS2_DEV_CONFIG_PHY_CAPS (UHS2_DEV_CONFIG_REG + 0x002) > > +#define UHS2_DEV_CONFIG_PHY_MINOR_MASK 0xF > > +#define UHS2_DEV_CONFIG_PHY_MAJOR_POS 4 > > +#define UHS2_DEV_CONFIG_PHY_MAJOR_MASK 0x3 > > +#define UHS2_DEV_CONFIG_CAN_HIBER_POS 15 > > +#define UHS2_DEV_CONFIG_CAN_HIBER_MASK 0x1 > > +#define UHS2_DEV_CONFIG_PHY_CAPS1 (UHS2_DEV_CONFIG_REG + 0x003) > > +#define UHS2_DEV_CONFIG_N_LSS_SYN_MASK 0xF > > +#define UHS2_DEV_CONFIG_N_LSS_DIR_POS 4 > > +#define UHS2_DEV_CONFIG_N_LSS_DIR_MASK 0xF > > + > > +#define UHS2_DEV_CONFIG_PHY_SET (UHS2_DEV_CONFIG_REG + 0x00A) > > +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_POS 6 > > +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_A 0x0 > > +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_B 0x1 > > + > > +/* LINK-TRAN Caps and Settings registers */ > > +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS (UHS2_DEV_CONFIG_REG + 0x004) > > +#define UHS2_DEV_CONFIG_LT_MINOR_MASK 0xF > > +#define UHS2_DEV_CONFIG_LT_MAJOR_POS 4 > > +#define UHS2_DEV_CONFIG_LT_MAJOR_MASK 0x3 > > +#define UHS2_DEV_CONFIG_N_FCU_POS 8 > > +#define UHS2_DEV_CONFIG_N_FCU_MASK 0xFF > > +#define UHS2_DEV_CONFIG_DEV_TYPE_POS 16 > > +#define UHS2_DEV_CONFIG_DEV_TYPE_MASK 0x7 > > +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_POS 20 > > +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_MASK 0xFFF > > +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS1 (UHS2_DEV_CONFIG_REG + 0x005) > > +#define UHS2_DEV_CONFIG_N_DATA_GAP_MASK 0xFF > > + > > +#define UHS2_DEV_CONFIG_LINK_TRAN_SET (UHS2_DEV_CONFIG_REG + 0x00C) > > +#define UHS2_DEV_CONFIG_LT_SET_MAX_BLK_LEN 0x200 > > +#define UHS2_DEV_CONFIG_LT_SET_MAX_RETRY_POS 16 > > + > > +/* Preset register */ > > +#define UHS2_DEV_CONFIG_PRESET (UHS2_DEV_CONFIG_REG + 0x040) > > + > > +#define UHS2_DEV_INT_REG 0x100 > > + > > +#define UHS2_DEV_STATUS_REG 0x180 > > + > > +#define UHS2_DEV_CMD_REG 0x200 > > +#define UHS2_DEV_CMD_FULL_RESET (UHS2_DEV_CMD_REG + 0x000) > > +#define UHS2_DEV_CMD_GO_DORMANT_STATE (UHS2_DEV_CMD_REG + 0x001) > > +#define UHS2_DEV_CMD_DORMANT_HIBER BIT(7) > > +#define UHS2_DEV_CMD_DEVICE_INIT (UHS2_DEV_CMD_REG + 0x002) > > +#define UHS2_DEV_INIT_COMPLETE_FLAG BIT(11) > > +#define UHS2_DEV_CMD_ENUMERATE (UHS2_DEV_CMD_REG + 0x003) > > +#define UHS2_DEV_CMD_TRANS_ABORT (UHS2_DEV_CMD_REG + 0x004) > > + > > +#define UHS2_RCLK_MAX 52000000 > > +#define UHS2_RCLK_MIN 26000000 > > + > > +struct sd_uhs2_wait_active_state_data { > > + struct mmc_host *host; > > + struct mmc_command *cmd; > > +}; > > + > > +#endif /* LINUX_MMC_UHS2_H */ > Thanks, Victor Shih
On 16/11/22 13:06, Victor Shih wrote: > Hi, Adrian > > On Wed, Nov 2, 2022 at 1:12 AM Adrian Hunter <adrian.hunter@intel.com> wrote: >> >> On 19/10/22 14:06, Victor Shih wrote: >>> Add UHS-II specific data structures for commands and defines for >>> registers, as described in Part 1 UHS-II Addendum Version 1.01. >>> >>> UHS-II related definitions are listed below: >>> 1. UHS-II card capability: sd_uhs2_caps{} >>> 2. UHS-II configuration: sd_uhs2_config{} >>> 3. UHS-II Command structure: uhs2_command{} >>> 4. UHS-II register I/O address and register field definitions: sd_uhs2.h >>> >>> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> >>> Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw> >>> Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> >>> --- >>> >>> Updates in V5: >>> - Added UHS2 interfaces in mmc_host_ops: host.h >>> - Added UHS2 VDD2 power supply in mmc_supply: host.h >>> - Added UHS2-specific OCR and UHS2 VDD2 max current in mmc_host: host.h >>> - Added definition of UHS2 VDD2 1.65v-1.95v in mmc_host: host.h >>> - Added flags/MMC_UHS2_SUPPORT/MMC_UHS2_2L_HD in mmc_host: host.h >>> --- >>> include/linux/mmc/card.h | 42 +++++- >>> include/linux/mmc/core.h | 13 ++ >>> include/linux/mmc/host.h | 70 +++++++++- >>> include/linux/mmc/sd_uhs2.h | 263 ++++++++++++++++++++++++++++++++++++ >>> 4 files changed, 386 insertions(+), 2 deletions(-) >>> create mode 100644 include/linux/mmc/sd_uhs2.h >>> >>> diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h >>> index 4a42f31b7bb0..d638a2c689cf 100644 >>> --- a/include/linux/mmc/card.h >>> +++ b/include/linux/mmc/card.h >>> @@ -190,6 +190,13 @@ struct sd_switch_caps { >>> #define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) >>> #define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) >>> #define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) >>> + unsigned int sd4_curr_limit; >>> +#define SD4_SET_POWER_LIMIT_0_72W 0 >>> +#define SD4_SET_POWER_LIMIT_1_44W 1 >>> +#define SD4_SET_POWER_LIMIT_2_16W 2 >>> +#define SD4_SET_POWER_LIMIT_2_88W 3 >>> +#define SD4_SET_POWER_LIMIT_1_80W 4 >>> +#define SD4_SET_POWER_NO_CHANGE (-1) >>> }; >>> >>> struct sd_ext_reg { >>> @@ -213,7 +220,35 @@ struct sd_ext_reg { >>> >>> struct sd_uhs2_config { >>> u32 node_id; >>> - /* TODO: Extend with more register configs. */ >>> + >>> + u32 dap; >>> + u32 gap; >>> + u32 n_fcu; >>> + u32 maxblk_len; >>> + u8 n_lanes; >>> + u8 dadr_len; >>> + u8 app_type; >>> + u8 phy_minor_rev; >>> + u8 phy_major_rev; >>> + u8 can_hibernate; >>> + u8 n_lss_sync; >>> + u8 n_lss_dir; >>> + u8 link_minor_rev; >>> + u8 link_major_rev; >>> + u8 dev_type; >>> + u8 n_data_gap; >>> + >>> + u32 n_fcu_set; >>> + u32 maxblk_len_set; >>> + u8 n_lanes_set; >>> + u8 speed_range_set; >>> + u8 n_lss_sync_set; >>> + u8 n_lss_dir_set; >>> + u8 n_data_gap_set; >>> + u8 pwrctrl_mode_set; >>> + u8 max_retry_set; >>> + >>> + u8 cfg_complete; >>> }; >>> >>> struct sdio_cccr { >>> @@ -323,6 +358,9 @@ struct mmc_card { >>> struct sd_ext_reg ext_perf; /* SD extension reg for PERF */ >>> >>> struct sd_uhs2_config uhs2_config; /* SD UHS-II config */ >>> + u8 uhs2_state; /* SD UHS-II states */ >>> +#define MMC_UHS2_INITIALIZED BIT(1) >>> +#define MMC_UHS2_SPEED_B BIT(2) >>> >>> unsigned int sdio_funcs; /* number of SDIO functions */ >>> atomic_t sdio_funcs_probed; /* number of probed SDIO funcs */ >>> @@ -364,4 +402,6 @@ bool mmc_card_is_blockaddr(struct mmc_card *card); >>> #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) >>> #define mmc_card_sd_combo(c) ((c)->type == MMC_TYPE_SD_COMBO) >>> >>> +#define mmc_card_can_poweroff_notify(c) ((c)->ext_power.feature_support & SD_EXT_POWER_OFF_NOTIFY) >>> + >>> #endif /* LINUX_MMC_CARD_H */ >>> diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h >>> index 6efec0b9820c..2a0581d87706 100644 >>> --- a/include/linux/mmc/core.h >>> +++ b/include/linux/mmc/core.h >>> @@ -23,6 +23,14 @@ enum mmc_blk_status { >>> MMC_BLK_NEW_REQUEST, >>> }; >>> >>> +struct uhs2_command { >>> + u16 header; >>> + u16 arg; >>> + __be32 *payload; >>> + u32 payload_len; >>> + u32 packet_len; >>> +}; >>> + >>> struct mmc_command { >>> u32 opcode; >>> u32 arg; >>> @@ -109,6 +117,11 @@ struct mmc_command { >>> unsigned int busy_timeout; /* busy detect timeout in ms */ >>> struct mmc_data *data; /* data segment associated with cmd */ >>> struct mmc_request *mrq; /* associated request */ >>> + >>> + struct uhs2_command *uhs2_cmd; /* UHS2 command */ >>> + u8 *uhs2_resp; /* UHS2 native cmd resp */ >>> + u8 uhs2_resp_len; /* UHS2 native cmd resp len */ >>> + u8 uhs2_tmode0_flag; /* UHS2 transfer mode flag */ >>> }; >>> >>> struct mmc_data { >>> diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h >>> index 895bcf7f80b7..249a9414ad10 100644 >>> --- a/include/linux/mmc/host.h >>> +++ b/include/linux/mmc/host.h >>> @@ -16,6 +16,7 @@ >>> #include <linux/mmc/pm.h> >>> #include <linux/dma-direction.h> >>> #include <linux/blk-crypto-profile.h> >>> +#include <linux/mmc/sd_uhs2.h> >>> >>> struct mmc_ios { >>> unsigned int clock; /* clock rate */ >>> @@ -96,7 +97,48 @@ struct mmc_clk_phase_map { >>> }; >>> >>> struct sd_uhs2_caps { >>> - /* TODO: Add UHS-II capabilities for the host. */ >>> + u32 dap; >>> + u32 gap; >>> + u32 group_desc; >>> + u32 maxblk_len; >>> + u32 n_fcu; >>> + u8 n_lanes; >>> + u8 addr64; >>> + u8 card_type; >>> + u8 phy_rev; >>> + u8 speed_range; >>> + u8 can_hibernate; >>> + u8 n_lss_sync; >>> + u8 n_lss_dir; >>> + u8 link_rev; >>> + u8 host_type; >>> + u8 n_data_gap; >>> + >>> + u32 maxblk_len_set; >>> + u32 n_fcu_set; >>> + u8 n_lanes_set; >>> + u8 n_lss_sync_set; >>> + u8 n_lss_dir_set; >>> + u8 n_data_gap_set; >>> + u8 max_retry_set; >>> +}; >>> + >>> +struct sd_uhs2_ios { >>> + bool is_2L_HD_mode; >>> + bool is_APP_CMD; >>> + unsigned int power_delay_ms; /* waiting for stable power */ >>> +}; >>> + >>> +enum sd_uhs2_operation { >>> + UHS2_PHY_INIT = 0, >>> + UHS2_SET_CONFIG, >>> + UHS2_ENABLE_INT, >>> + UHS2_DISABLE_INT, >>> + UHS2_ENABLE_CLK, >>> + UHS2_DISABLE_CLK, >>> + UHS2_CHECK_DORMANT, >>> + UHS2_SET_SPEED_B, >>> + UHS2_POST_ATTACH_SD, >>> }; >>> >>> struct mmc_host; >>> @@ -231,6 +273,20 @@ struct mmc_host_ops { >>> >>> /* Initialize an SD express card, mandatory for MMC_CAP2_SD_EXP. */ >>> int (*init_sd_express)(struct mmc_host *host, struct mmc_ios *ios); >>> + >>> + /* UHS2 interfaces */ >>> + int (*uhs2_detect_init)(struct mmc_host *host); >> >> Never called? > > Yes, I will delete it. > >> >>> + int (*uhs2_set_reg)(struct mmc_host *host, enum sd_uhs2_operation act); >> >> Never called? > > Yes, I will delete it. > >> >>> + int (*uhs2_disable_clk)(struct mmc_host *host); >> >> Never called? > > Yes, I will delete it. > >> >>> + int (*uhs2_enable_clk)(struct mmc_host *host); >> >> Never called? > > Yes, I will delete it. > >> >>> + >>> + /* >>> + * The uhs2_control callback is used to execute SD UHS-II specific >>> + * operations. It's mandatory to implement for hosts that supports the >>> + * SD UHS-II interface (MMC_CAP2_SD_UHS2). Expected return values are a >>> + * negative errno in case of a failure or zero for success. >>> + */ >>> + int (*uhs2_control)(struct mmc_host *host, enum sd_uhs2_operation op); >>> }; >>> >>> struct mmc_cqe_ops { >>> @@ -323,6 +379,7 @@ struct mmc_pwrseq; >>> >>> struct mmc_supply { >>> struct regulator *vmmc; /* Card power supply */ >>> + struct regulator *vmmc2; /* UHS2 VDD2 power supply */ >>> struct regulator *vqmmc; /* Optional Vccq supply */ >>> struct regulator *vqmmc2; /* Optional supply for phy */ >>> }; >>> @@ -344,10 +401,12 @@ struct mmc_host { >>> u32 ocr_avail_sdio; /* SDIO-specific OCR */ >>> u32 ocr_avail_sd; /* SD-specific OCR */ >>> u32 ocr_avail_mmc; /* MMC-specific OCR */ >>> + u32 ocr_avail_uhs2; /* UHS2-specific OCR */ >>> struct wakeup_source *ws; /* Enable consume of uevents */ >>> u32 max_current_330; >>> u32 max_current_300; >>> u32 max_current_180; >>> + u32 max_current_180_vdd2; /* UHS2 vdd2 max curt. */ >>> >>> #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ >>> #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ >>> @@ -366,6 +425,7 @@ struct mmc_host { >>> #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ >>> #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ >>> #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ >>> +#define MMC_VDD2_165_195 0x00000080 /* UHS2 VDD2 1.65 ~ 1.95 */ >>> >>> u32 caps; /* Host capabilities */ >>> >>> @@ -443,7 +503,12 @@ struct mmc_host { >>> #endif >>> #define MMC_CAP2_ALT_GPT_TEGRA (1 << 28) /* Host with eMMC that has GPT entry at a non-standard location */ >>> >>> + int flags; >>> +#define MMC_UHS2_SUPPORT (1 << 0) >> >> MMC_UHS2_SUPPORT is getting mixed up with MMC_UHS2_INITIALIZED. >> Both have the same value, but MMC_UHS2_SUPPORT is for >> host->flags and MMC_UHS2_INITIALIZED is for card->uhs2_state >> >> Please use the correct flag with the correct variable. >> > > The value of MMC_UHS2_SUPPORT is (1<<0) and the value of > MMC_UHS2_INITIALIZED is BIT(1). > Both have different values, therefore I'm not sure what you mean. > May you give me some more advice? Thanks. I guess I got confused about the values, however it is not OK to use MMC_UHS2_INITIALIZED for both mmc->flags and card->uhs2_state. Please make a separate define with a different name for mmc->flags version of MMC_UHS2_INITIALIZED. Also, I am confused about the purpose of mmc->flags and card->uhs2_state. A host is UHS-II capable as represented by MMC_CAP2_SD_UHS2. To initialize and use a UHS-II card in UHS-II mode, the host must be in UHS-II mode. To initialize and use a UHS-II card in SD mode, the host must be in SD mode. So the state of the card and host is always the same: either UHS-II or not. Note, that is a consequence of the hardware I/F. Whether SD I/F or UHS-II I/F is used is decided before sending any UHS-II commands. SD I/F is disabled during UHS-II PHY initialization, whereas UHS-II I/F is disabled before execution of ACMD41 is completed. So it seems like there would only be a need for one flag to indicate UHS-II mode? > >>> +#define MMC_UHS2_2L_HD (1 << 2) >> >> MMC_UHS2_2L_HD does not seem to be used. Is it needed? > > I confirmed this, I don't use it, I will delete it. > >> >>> + >>> struct sd_uhs2_caps uhs2_caps; /* Host UHS-II capabilities */ >>> + struct sd_uhs2_ios uhs2_ios; /* Host UHS-II capabilities */ >>> >>> int fixed_drv_type; /* fixed driver type for non-removable media */ >>> >>> @@ -695,4 +760,7 @@ int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); >>> int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); >>> int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); >>> >>> +#define mmc_uhs2_2L_HD_mode(h) ((h)->uhs2_ios.is_2L_HD_mode) >>> +#define mmc_uhs2_APP_cmd(h) ((h)->uhs2_ios.is_APP_CMD) >>> + >>> #endif /* LINUX_MMC_HOST_H */ >>> diff --git a/include/linux/mmc/sd_uhs2.h b/include/linux/mmc/sd_uhs2.h >>> new file mode 100644 >>> index 000000000000..8fcf702cf4a5 >>> --- /dev/null >>> +++ b/include/linux/mmc/sd_uhs2.h >>> @@ -0,0 +1,263 @@ >>> +/* SPDX-License-Identifier: GPL-2.0-or-later */ >>> +/* >>> + * Header file for UHS-II packets, Host Controller registers and I/O >>> + * accessors. >>> + * >>> + * Copyright (C) 2014 Intel Corp, All Rights Reserved. >>> + */ >>> +#ifndef LINUX_MMC_UHS2_H >>> +#define LINUX_MMC_UHS2_H >>> + >>> +/* LINK Layer definition */ >>> +/* >>> + * UHS2 Header: >>> + * Refer to UHS-II Addendum Version 1.02 Figure 5-2, the format of CCMD Header is described below: >>> + * bit [3:0] : DID(Destination ID = Node ID of UHS2 card) >>> + * bit [6:4] : TYP(Packet Type) >>> + * 000b: CCMD(Control command packet) >>> + * 001b: DCMD(Data command packet) >>> + * 010b: RES(Response packet) >>> + * 011b: DATA(Data payload packet) >>> + * 111b: MSG(Message packet) >>> + * Others: Reserved >>> + * bit [7] : NP(Native Packet) >>> + * bit [10:8] : TID(Transaction ID) >>> + * bit [11] : Reserved >>> + * bit [15:12]: SID(Source ID 0: Node ID of Host) >>> + * >>> + * Broadcast CCMD issued by Host is represented as DID=SID=0. >>> + */ >>> +/* >>> + * UHS2 Argument: >>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-5, the format of CCMD Argument is described below: >>> + * bit [3:0] : MSB of IOADR >>> + * bit [5:4] : PLEN(Payload Length) >>> + * 00b: 0 byte >>> + * 01b: 4 bytes >>> + * 10b: 8 bytes >>> + * 11b: 16 bytes >>> + * bit [6] : Reserved >>> + * bit [7] : R/W(Read/Write) >>> + * 0: Control read command >>> + * 1: Control write command >>> + * bit [15:8] : LSB of IOADR >>> + * >>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. >>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. >>> + */ >>> +#define UHS2_NATIVE_PACKET_POS 7 >>> +#define UHS2_NATIVE_PACKET (1 << UHS2_NATIVE_PACKET_POS) >>> + >>> +#define UHS2_PACKET_TYPE_POS 4 >>> +#define UHS2_PACKET_TYPE_CCMD (0 << UHS2_PACKET_TYPE_POS) >>> +#define UHS2_PACKET_TYPE_DCMD (1 << UHS2_PACKET_TYPE_POS) >>> +#define UHS2_PACKET_TYPE_RES (2 << UHS2_PACKET_TYPE_POS) >>> +#define UHS2_PACKET_TYPE_DATA (3 << UHS2_PACKET_TYPE_POS) >>> +#define UHS2_PACKET_TYPE_MSG (7 << UHS2_PACKET_TYPE_POS) >>> + >>> +#define UHS2_DEST_ID_MASK 0x0F >>> +#define UHS2_DEST_ID 0x1 >>> + >>> +#define UHS2_SRC_ID_POS 12 >>> +#define UHS2_SRC_ID_MASK 0xF000 >>> + >>> +#define UHS2_TRANS_ID_POS 8 >>> +#define UHS2_TRANS_ID_MASK 0x0700 >>> + >>> +/* UHS2 MSG */ >>> +#define UHS2_MSG_CTG_POS 5 >>> +#define UHS2_MSG_CTG_LMSG 0x00 >>> +#define UHS2_MSG_CTG_INT 0x60 >>> +#define UHS2_MSG_CTG_AMSG 0x80 >>> + >>> +#define UHS2_MSG_CTG_FCREQ 0x00 >>> +#define UHS2_MSG_CTG_FCRDY 0x01 >>> +#define UHS2_MSG_CTG_STAT 0x02 >>> + >>> +#define UHS2_MSG_CODE_POS 8 >>> +#define UHS2_MSG_CODE_FC_UNRECOVER_ERR 0x8 >>> +#define UHS2_MSG_CODE_STAT_UNRECOVER_ERR 0x8 >>> +#define UHS2_MSG_CODE_STAT_RECOVER_ERR 0x1 >>> + >>> +/* TRANS Layer definition */ >>> + >>> +/* Native packets*/ >>> +#define UHS2_NATIVE_CMD_RW_POS 7 >>> +#define UHS2_NATIVE_CMD_WRITE (1 << UHS2_NATIVE_CMD_RW_POS) >>> +#define UHS2_NATIVE_CMD_READ (0 << UHS2_NATIVE_CMD_RW_POS) >>> + >>> +#define UHS2_NATIVE_CMD_PLEN_POS 4 >>> +#define UHS2_NATIVE_CMD_PLEN_4B (1 << UHS2_NATIVE_CMD_PLEN_POS) >>> +#define UHS2_NATIVE_CMD_PLEN_8B (2 << UHS2_NATIVE_CMD_PLEN_POS) >>> +#define UHS2_NATIVE_CMD_PLEN_16B (3 << UHS2_NATIVE_CMD_PLEN_POS) >>> + >>> +#define UHS2_NATIVE_CCMD_GET_MIOADR_MASK 0xF00 >>> +#define UHS2_NATIVE_CCMD_MIOADR_MASK 0x0F >>> + >>> +#define UHS2_NATIVE_CCMD_LIOADR_POS 8 >>> +#define UHS2_NATIVE_CCMD_GET_LIOADR_MASK 0x0FF >>> + >>> +#define UHS2_CCMD_DEV_INIT_COMPLETE_FLAG BIT(11) >>> +#define UHS2_DEV_INIT_PAYLOAD_LEN 1 >>> +#define UHS2_DEV_INIT_RESP_LEN 6 >>> +#define UHS2_DEV_ENUM_PAYLOAD_LEN 1 >>> +#define UHS2_DEV_ENUM_RESP_LEN 8 >>> +#define UHS2_CFG_WRITE_PAYLOAD_LEN 2 >>> +#define UHS2_CFG_WRITE_PHY_SET_RESP_LEN 4 >>> +#define UHS2_CFG_WRITE_GENERIC_SET_RESP_LEN 5 >>> +#define UHS2_GO_DORMANT_PAYLOAD_LEN 1 >>> + >>> +/* >>> + * UHS2 Argument: >>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-8, the format of DCMD Argument is described below: >>> + * bit [3:0] : Reserved >>> + * bit [6:3] : TMODE(Transfer Mode) >>> + * bit 3: DAM(Data Access Mode) >>> + * bit 4: TLUM(TLEN Unit Mode) >>> + * bit 5: LM(Length Mode) >>> + * bit 6: DM(Duplex Mode) >>> + * bit [7] : R/W(Read/Write) >>> + * 0: Control read command >>> + * 1: Control write command >>> + * bit [15:8] : Reserved >>> + * >>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. >>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. >>> + */ >>> +#define UHS2_DCMD_DM_POS 6 >>> +#define UHS2_DCMD_2L_HD_MODE (1 << UHS2_DCMD_DM_POS) >>> +#define UHS2_DCMD_LM_POS 5 >>> +#define UHS2_DCMD_LM_TLEN_EXIST (1 << UHS2_DCMD_LM_POS) >>> +#define UHS2_DCMD_TLUM_POS 4 >>> +#define UHS2_DCMD_TLUM_BYTE_MODE (1 << UHS2_DCMD_TLUM_POS) >>> +#define UHS2_NATIVE_DCMD_DAM_POS 3 >>> +#define UHS2_NATIVE_DCMD_DAM_IO (1 << UHS2_NATIVE_DCMD_DAM_POS) >>> + >>> +/* >>> + * Per UHS2 spec, DCMD payload should be MSB first. There may be >>> + * two types of data be assembled to MSB: >>> + * 1. TLEN: Input block size for single read/write and number of blocks >>> + * for multiple read/write to calculate TLEN as MSB first per spec. >>> + * 2. SD command argument. >>> + */ >>> +static inline __be32 uhs2_dcmd_convert_msb(u32 input) >>> +{ >>> + u32 ret = 0; >>> + >>> + ret = ((input & 0xFF) << 24) | >>> + (((input >> 8) & 0xFF) << 16) | >>> + (((input >> 16) & 0xFF) << 8) | >>> + ((input >> 24) & 0xFF); >>> + return cpu_to_be32(ret); >>> +} >>> + >>> +#define UHS2_RES_NACK_POS 7 >>> +#define UHS2_RES_NACK_MASK (0x1 << UHS2_RES_NACK_POS) >>> + >>> +#define UHS2_RES_ECODE_POS 4 >>> +#define UHS2_RES_ECODE_MASK 0x7 >>> +#define UHS2_RES_ECODE_COND 1 >>> +#define UHS2_RES_ECODE_ARG 2 >>> +#define UHS2_RES_ECODE_GEN 3 >>> + >>> +/* IOADR of device registers */ >>> +#define UHS2_IOADR_GENERIC_CAPS 0x00 >>> +#define UHS2_IOADR_PHY_CAPS 0x02 >>> +#define UHS2_IOADR_LINK_CAPS 0x04 >>> +#define UHS2_IOADR_RSV_CAPS 0x06 >>> +#define UHS2_IOADR_GENERIC_SETTINGS 0x08 >>> +#define UHS2_IOADR_PHY_SETTINGS 0x0A >>> +#define UHS2_IOADR_LINK_SETTINGS 0x0C >>> +#define UHS2_IOADR_PRESET 0x40 >>> + >>> +/* SD application packets */ >>> +#define UHS2_SD_CMD_INDEX_POS 8 >>> + >>> +#define UHS2_SD_CMD_APP_POS 14 >>> +#define UHS2_SD_CMD_APP (1 << UHS2_SD_CMD_APP_POS) >>> + >>> +/* UHS-II Device Registers */ >>> +#define UHS2_DEV_CONFIG_REG 0x000 >>> + >>> +/* General Caps and Settings registers */ >>> +#define UHS2_DEV_CONFIG_GEN_CAPS (UHS2_DEV_CONFIG_REG + 0x000) >>> +#define UHS2_DEV_CONFIG_N_LANES_POS 8 >>> +#define UHS2_DEV_CONFIG_N_LANES_MASK 0x3F >>> +#define UHS2_DEV_CONFIG_2L_HD_FD 0x1 >>> +#define UHS2_DEV_CONFIG_2D1U_FD 0x2 >>> +#define UHS2_DEV_CONFIG_1D2U_FD 0x4 >>> +#define UHS2_DEV_CONFIG_2D2U_FD 0x8 >>> +#define UHS2_DEV_CONFIG_DADR_POS 14 >>> +#define UHS2_DEV_CONFIG_DADR_MASK 0x1 >>> +#define UHS2_DEV_CONFIG_APP_POS 16 >>> +#define UHS2_DEV_CONFIG_APP_MASK 0xFF >>> +#define UHS2_DEV_CONFIG_APP_SD_MEM 0x1 >>> + >>> +#define UHS2_DEV_CONFIG_GEN_SET (UHS2_DEV_CONFIG_REG + 0x008) >>> +#define UHS2_DEV_CONFIG_GEN_SET_N_LANES_POS 8 >>> +#define UHS2_DEV_CONFIG_GEN_SET_2L_FD_HD 0x0 >>> +#define UHS2_DEV_CONFIG_GEN_SET_2D1U_FD 0x2 >>> +#define UHS2_DEV_CONFIG_GEN_SET_1D2U_FD 0x3 >>> +#define UHS2_DEV_CONFIG_GEN_SET_2D2U_FD 0x4 >>> +#define UHS2_DEV_CONFIG_GEN_SET_CFG_COMPLETE BIT(31) >>> + >>> +/* PHY Caps and Settings registers */ >>> +#define UHS2_DEV_CONFIG_PHY_CAPS (UHS2_DEV_CONFIG_REG + 0x002) >>> +#define UHS2_DEV_CONFIG_PHY_MINOR_MASK 0xF >>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_POS 4 >>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_MASK 0x3 >>> +#define UHS2_DEV_CONFIG_CAN_HIBER_POS 15 >>> +#define UHS2_DEV_CONFIG_CAN_HIBER_MASK 0x1 >>> +#define UHS2_DEV_CONFIG_PHY_CAPS1 (UHS2_DEV_CONFIG_REG + 0x003) >>> +#define UHS2_DEV_CONFIG_N_LSS_SYN_MASK 0xF >>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_POS 4 >>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_MASK 0xF >>> + >>> +#define UHS2_DEV_CONFIG_PHY_SET (UHS2_DEV_CONFIG_REG + 0x00A) >>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_POS 6 >>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_A 0x0 >>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_B 0x1 >>> + >>> +/* LINK-TRAN Caps and Settings registers */ >>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS (UHS2_DEV_CONFIG_REG + 0x004) >>> +#define UHS2_DEV_CONFIG_LT_MINOR_MASK 0xF >>> +#define UHS2_DEV_CONFIG_LT_MAJOR_POS 4 >>> +#define UHS2_DEV_CONFIG_LT_MAJOR_MASK 0x3 >>> +#define UHS2_DEV_CONFIG_N_FCU_POS 8 >>> +#define UHS2_DEV_CONFIG_N_FCU_MASK 0xFF >>> +#define UHS2_DEV_CONFIG_DEV_TYPE_POS 16 >>> +#define UHS2_DEV_CONFIG_DEV_TYPE_MASK 0x7 >>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_POS 20 >>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_MASK 0xFFF >>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS1 (UHS2_DEV_CONFIG_REG + 0x005) >>> +#define UHS2_DEV_CONFIG_N_DATA_GAP_MASK 0xFF >>> + >>> +#define UHS2_DEV_CONFIG_LINK_TRAN_SET (UHS2_DEV_CONFIG_REG + 0x00C) >>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_BLK_LEN 0x200 >>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_RETRY_POS 16 >>> + >>> +/* Preset register */ >>> +#define UHS2_DEV_CONFIG_PRESET (UHS2_DEV_CONFIG_REG + 0x040) >>> + >>> +#define UHS2_DEV_INT_REG 0x100 >>> + >>> +#define UHS2_DEV_STATUS_REG 0x180 >>> + >>> +#define UHS2_DEV_CMD_REG 0x200 >>> +#define UHS2_DEV_CMD_FULL_RESET (UHS2_DEV_CMD_REG + 0x000) >>> +#define UHS2_DEV_CMD_GO_DORMANT_STATE (UHS2_DEV_CMD_REG + 0x001) >>> +#define UHS2_DEV_CMD_DORMANT_HIBER BIT(7) >>> +#define UHS2_DEV_CMD_DEVICE_INIT (UHS2_DEV_CMD_REG + 0x002) >>> +#define UHS2_DEV_INIT_COMPLETE_FLAG BIT(11) >>> +#define UHS2_DEV_CMD_ENUMERATE (UHS2_DEV_CMD_REG + 0x003) >>> +#define UHS2_DEV_CMD_TRANS_ABORT (UHS2_DEV_CMD_REG + 0x004) >>> + >>> +#define UHS2_RCLK_MAX 52000000 >>> +#define UHS2_RCLK_MIN 26000000 >>> + >>> +struct sd_uhs2_wait_active_state_data { >>> + struct mmc_host *host; >>> + struct mmc_command *cmd; >>> +}; >>> + >>> +#endif /* LINUX_MMC_UHS2_H */ >> > > Thanks, Victor Shih
Hi, On Wed, Nov 16, 2022 at 9:48 PM Adrian Hunter <adrian.hunter@intel.com> wrote: > > On 16/11/22 13:06, Victor Shih wrote: > > Hi, Adrian > > > > On Wed, Nov 2, 2022 at 1:12 AM Adrian Hunter <adrian.hunter@intel.com> wrote: > >> > >> On 19/10/22 14:06, Victor Shih wrote: > >>> Add UHS-II specific data structures for commands and defines for > >>> registers, as described in Part 1 UHS-II Addendum Version 1.01. > >>> > >>> UHS-II related definitions are listed below: > >>> 1. UHS-II card capability: sd_uhs2_caps{} > >>> 2. UHS-II configuration: sd_uhs2_config{} > >>> 3. UHS-II Command structure: uhs2_command{} > >>> 4. UHS-II register I/O address and register field definitions: sd_uhs2.h > >>> > >>> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> > >>> Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw> > >>> Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> > >>> --- > >>> > >>> Updates in V5: > >>> - Added UHS2 interfaces in mmc_host_ops: host.h > >>> - Added UHS2 VDD2 power supply in mmc_supply: host.h > >>> - Added UHS2-specific OCR and UHS2 VDD2 max current in mmc_host: host.h > >>> - Added definition of UHS2 VDD2 1.65v-1.95v in mmc_host: host.h > >>> - Added flags/MMC_UHS2_SUPPORT/MMC_UHS2_2L_HD in mmc_host: host.h > >>> --- > >>> include/linux/mmc/card.h | 42 +++++- > >>> include/linux/mmc/core.h | 13 ++ > >>> include/linux/mmc/host.h | 70 +++++++++- > >>> include/linux/mmc/sd_uhs2.h | 263 ++++++++++++++++++++++++++++++++++++ > >>> 4 files changed, 386 insertions(+), 2 deletions(-) > >>> create mode 100644 include/linux/mmc/sd_uhs2.h > >>> > >>> diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h > >>> index 4a42f31b7bb0..d638a2c689cf 100644 > >>> --- a/include/linux/mmc/card.h > >>> +++ b/include/linux/mmc/card.h > >>> @@ -190,6 +190,13 @@ struct sd_switch_caps { > >>> #define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) > >>> #define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) > >>> #define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) > >>> + unsigned int sd4_curr_limit; > >>> +#define SD4_SET_POWER_LIMIT_0_72W 0 > >>> +#define SD4_SET_POWER_LIMIT_1_44W 1 > >>> +#define SD4_SET_POWER_LIMIT_2_16W 2 > >>> +#define SD4_SET_POWER_LIMIT_2_88W 3 > >>> +#define SD4_SET_POWER_LIMIT_1_80W 4 > >>> +#define SD4_SET_POWER_NO_CHANGE (-1) > >>> }; > >>> > >>> struct sd_ext_reg { > >>> @@ -213,7 +220,35 @@ struct sd_ext_reg { > >>> > >>> struct sd_uhs2_config { > >>> u32 node_id; > >>> - /* TODO: Extend with more register configs. */ > >>> + > >>> + u32 dap; > >>> + u32 gap; > >>> + u32 n_fcu; > >>> + u32 maxblk_len; > >>> + u8 n_lanes; > >>> + u8 dadr_len; > >>> + u8 app_type; > >>> + u8 phy_minor_rev; > >>> + u8 phy_major_rev; > >>> + u8 can_hibernate; > >>> + u8 n_lss_sync; > >>> + u8 n_lss_dir; > >>> + u8 link_minor_rev; > >>> + u8 link_major_rev; > >>> + u8 dev_type; > >>> + u8 n_data_gap; > >>> + > >>> + u32 n_fcu_set; > >>> + u32 maxblk_len_set; > >>> + u8 n_lanes_set; > >>> + u8 speed_range_set; > >>> + u8 n_lss_sync_set; > >>> + u8 n_lss_dir_set; > >>> + u8 n_data_gap_set; > >>> + u8 pwrctrl_mode_set; > >>> + u8 max_retry_set; > >>> + > >>> + u8 cfg_complete; > >>> }; > >>> > >>> struct sdio_cccr { > >>> @@ -323,6 +358,9 @@ struct mmc_card { > >>> struct sd_ext_reg ext_perf; /* SD extension reg for PERF */ > >>> > >>> struct sd_uhs2_config uhs2_config; /* SD UHS-II config */ > >>> + u8 uhs2_state; /* SD UHS-II states */ > >>> +#define MMC_UHS2_INITIALIZED BIT(1) > >>> +#define MMC_UHS2_SPEED_B BIT(2) > >>> > >>> unsigned int sdio_funcs; /* number of SDIO functions */ > >>> atomic_t sdio_funcs_probed; /* number of probed SDIO funcs */ > >>> @@ -364,4 +402,6 @@ bool mmc_card_is_blockaddr(struct mmc_card *card); > >>> #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) > >>> #define mmc_card_sd_combo(c) ((c)->type == MMC_TYPE_SD_COMBO) > >>> > >>> +#define mmc_card_can_poweroff_notify(c) ((c)->ext_power.feature_support & SD_EXT_POWER_OFF_NOTIFY) > >>> + > >>> #endif /* LINUX_MMC_CARD_H */ > >>> diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h > >>> index 6efec0b9820c..2a0581d87706 100644 > >>> --- a/include/linux/mmc/core.h > >>> +++ b/include/linux/mmc/core.h > >>> @@ -23,6 +23,14 @@ enum mmc_blk_status { > >>> MMC_BLK_NEW_REQUEST, > >>> }; > >>> > >>> +struct uhs2_command { > >>> + u16 header; > >>> + u16 arg; > >>> + __be32 *payload; > >>> + u32 payload_len; > >>> + u32 packet_len; > >>> +}; > >>> + > >>> struct mmc_command { > >>> u32 opcode; > >>> u32 arg; > >>> @@ -109,6 +117,11 @@ struct mmc_command { > >>> unsigned int busy_timeout; /* busy detect timeout in ms */ > >>> struct mmc_data *data; /* data segment associated with cmd */ > >>> struct mmc_request *mrq; /* associated request */ > >>> + > >>> + struct uhs2_command *uhs2_cmd; /* UHS2 command */ > >>> + u8 *uhs2_resp; /* UHS2 native cmd resp */ > >>> + u8 uhs2_resp_len; /* UHS2 native cmd resp len */ > >>> + u8 uhs2_tmode0_flag; /* UHS2 transfer mode flag */ > >>> }; > >>> > >>> struct mmc_data { > >>> diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h > >>> index 895bcf7f80b7..249a9414ad10 100644 > >>> --- a/include/linux/mmc/host.h > >>> +++ b/include/linux/mmc/host.h > >>> @@ -16,6 +16,7 @@ > >>> #include <linux/mmc/pm.h> > >>> #include <linux/dma-direction.h> > >>> #include <linux/blk-crypto-profile.h> > >>> +#include <linux/mmc/sd_uhs2.h> > >>> > >>> struct mmc_ios { > >>> unsigned int clock; /* clock rate */ > >>> @@ -96,7 +97,48 @@ struct mmc_clk_phase_map { > >>> }; > >>> > >>> struct sd_uhs2_caps { > >>> - /* TODO: Add UHS-II capabilities for the host. */ > >>> + u32 dap; > >>> + u32 gap; > >>> + u32 group_desc; > >>> + u32 maxblk_len; > >>> + u32 n_fcu; > >>> + u8 n_lanes; > >>> + u8 addr64; > >>> + u8 card_type; > >>> + u8 phy_rev; > >>> + u8 speed_range; > >>> + u8 can_hibernate; > >>> + u8 n_lss_sync; > >>> + u8 n_lss_dir; > >>> + u8 link_rev; > >>> + u8 host_type; > >>> + u8 n_data_gap; > >>> + > >>> + u32 maxblk_len_set; > >>> + u32 n_fcu_set; > >>> + u8 n_lanes_set; > >>> + u8 n_lss_sync_set; > >>> + u8 n_lss_dir_set; > >>> + u8 n_data_gap_set; > >>> + u8 max_retry_set; > >>> +}; > >>> + > >>> +struct sd_uhs2_ios { > >>> + bool is_2L_HD_mode; > >>> + bool is_APP_CMD; > >>> + unsigned int power_delay_ms; /* waiting for stable power */ > >>> +}; > >>> + > >>> +enum sd_uhs2_operation { > >>> + UHS2_PHY_INIT = 0, > >>> + UHS2_SET_CONFIG, > >>> + UHS2_ENABLE_INT, > >>> + UHS2_DISABLE_INT, > >>> + UHS2_ENABLE_CLK, > >>> + UHS2_DISABLE_CLK, > >>> + UHS2_CHECK_DORMANT, > >>> + UHS2_SET_SPEED_B, > >>> + UHS2_POST_ATTACH_SD, > >>> }; > >>> > >>> struct mmc_host; > >>> @@ -231,6 +273,20 @@ struct mmc_host_ops { > >>> > >>> /* Initialize an SD express card, mandatory for MMC_CAP2_SD_EXP. */ > >>> int (*init_sd_express)(struct mmc_host *host, struct mmc_ios *ios); > >>> + > >>> + /* UHS2 interfaces */ > >>> + int (*uhs2_detect_init)(struct mmc_host *host); > >> > >> Never called? > > > > Yes, I will delete it. > > > >> > >>> + int (*uhs2_set_reg)(struct mmc_host *host, enum sd_uhs2_operation act); > >> > >> Never called? > > > > Yes, I will delete it. > > > >> > >>> + int (*uhs2_disable_clk)(struct mmc_host *host); > >> > >> Never called? > > > > Yes, I will delete it. > > > >> > >>> + int (*uhs2_enable_clk)(struct mmc_host *host); > >> > >> Never called? > > > > Yes, I will delete it. > > > >> > >>> + > >>> + /* > >>> + * The uhs2_control callback is used to execute SD UHS-II specific > >>> + * operations. It's mandatory to implement for hosts that supports the > >>> + * SD UHS-II interface (MMC_CAP2_SD_UHS2). Expected return values are a > >>> + * negative errno in case of a failure or zero for success. > >>> + */ > >>> + int (*uhs2_control)(struct mmc_host *host, enum sd_uhs2_operation op); > >>> }; > >>> > >>> struct mmc_cqe_ops { > >>> @@ -323,6 +379,7 @@ struct mmc_pwrseq; > >>> > >>> struct mmc_supply { > >>> struct regulator *vmmc; /* Card power supply */ > >>> + struct regulator *vmmc2; /* UHS2 VDD2 power supply */ > >>> struct regulator *vqmmc; /* Optional Vccq supply */ > >>> struct regulator *vqmmc2; /* Optional supply for phy */ > >>> }; > >>> @@ -344,10 +401,12 @@ struct mmc_host { > >>> u32 ocr_avail_sdio; /* SDIO-specific OCR */ > >>> u32 ocr_avail_sd; /* SD-specific OCR */ > >>> u32 ocr_avail_mmc; /* MMC-specific OCR */ > >>> + u32 ocr_avail_uhs2; /* UHS2-specific OCR */ > >>> struct wakeup_source *ws; /* Enable consume of uevents */ > >>> u32 max_current_330; > >>> u32 max_current_300; > >>> u32 max_current_180; > >>> + u32 max_current_180_vdd2; /* UHS2 vdd2 max curt. */ > >>> > >>> #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ > >>> #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ > >>> @@ -366,6 +425,7 @@ struct mmc_host { > >>> #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ > >>> #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ > >>> #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ > >>> +#define MMC_VDD2_165_195 0x00000080 /* UHS2 VDD2 1.65 ~ 1.95 */ > >>> > >>> u32 caps; /* Host capabilities */ > >>> > >>> @@ -443,7 +503,12 @@ struct mmc_host { > >>> #endif > >>> #define MMC_CAP2_ALT_GPT_TEGRA (1 << 28) /* Host with eMMC that has GPT entry at a non-standard location */ > >>> > >>> + int flags; > >>> +#define MMC_UHS2_SUPPORT (1 << 0) > >> > >> MMC_UHS2_SUPPORT is getting mixed up with MMC_UHS2_INITIALIZED. > >> Both have the same value, but MMC_UHS2_SUPPORT is for > >> host->flags and MMC_UHS2_INITIALIZED is for card->uhs2_state > >> > >> Please use the correct flag with the correct variable. > >> > > > > The value of MMC_UHS2_SUPPORT is (1<<0) and the value of > > MMC_UHS2_INITIALIZED is BIT(1). > > Both have different values, therefore I'm not sure what you mean. > > May you give me some more advice? Thanks. > > I guess I got confused about the values, however it is not OK to > use MMC_UHS2_INITIALIZED for both mmc->flags and card->uhs2_state. > Please make a separate define with a different name for mmc->flags > version of MMC_UHS2_INITIALIZED. MMC_UHS2_INITIALIZED here is used to judge that the UHS-II I/F has been initialized and can run in SD-TRAN. In this state, some SD commands require a distinction. For example, ACMD (CMD55) should be set by the APP field in UHS-II packet. > > Also, I am confused about the purpose of mmc->flags and > card->uhs2_state. It looks like the mmc->flags and card->uhs2_state have the same purpose. I think it is having trouble with card == NULL in mmc_app_cmd(*host, *card) in patch [V5, 06/26] so just add one more mmc->flags. Can wait for confirmation from Victor. > > A host is UHS-II capable as represented by MMC_CAP2_SD_UHS2. > To initialize and use a UHS-II card in UHS-II mode, the host > must be in UHS-II mode. > To initialize and use a UHS-II card in SD mode, the host > must be in SD mode. > So the state of the card and host is always the same: > either UHS-II or not. Note, that is a consequence of the > hardware I/F. Whether SD I/F or UHS-II I/F is used is > decided before sending any UHS-II commands. SD I/F is > disabled during UHS-II PHY initialization, whereas > UHS-II I/F is disabled before execution of ACMD41 is > completed. > > So it seems like there would only be a need for one flag > to indicate UHS-II mode? > > > > >>> +#define MMC_UHS2_2L_HD (1 << 2) > >> > >> MMC_UHS2_2L_HD does not seem to be used. Is it needed? > > > > I confirmed this, I don't use it, I will delete it. > > > >> > >>> + > >>> struct sd_uhs2_caps uhs2_caps; /* Host UHS-II capabilities */ > >>> + struct sd_uhs2_ios uhs2_ios; /* Host UHS-II capabilities */ > >>> > >>> int fixed_drv_type; /* fixed driver type for non-removable media */ > >>> > >>> @@ -695,4 +760,7 @@ int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); > >>> int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); > >>> int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); > >>> > >>> +#define mmc_uhs2_2L_HD_mode(h) ((h)->uhs2_ios.is_2L_HD_mode) > >>> +#define mmc_uhs2_APP_cmd(h) ((h)->uhs2_ios.is_APP_CMD) > >>> + > >>> #endif /* LINUX_MMC_HOST_H */ > >>> diff --git a/include/linux/mmc/sd_uhs2.h b/include/linux/mmc/sd_uhs2.h > >>> new file mode 100644 > >>> index 000000000000..8fcf702cf4a5 > >>> --- /dev/null > >>> +++ b/include/linux/mmc/sd_uhs2.h > >>> @@ -0,0 +1,263 @@ > >>> +/* SPDX-License-Identifier: GPL-2.0-or-later */ > >>> +/* > >>> + * Header file for UHS-II packets, Host Controller registers and I/O > >>> + * accessors. > >>> + * > >>> + * Copyright (C) 2014 Intel Corp, All Rights Reserved. > >>> + */ > >>> +#ifndef LINUX_MMC_UHS2_H > >>> +#define LINUX_MMC_UHS2_H > >>> + > >>> +/* LINK Layer definition */ > >>> +/* > >>> + * UHS2 Header: > >>> + * Refer to UHS-II Addendum Version 1.02 Figure 5-2, the format of CCMD Header is described below: > >>> + * bit [3:0] : DID(Destination ID = Node ID of UHS2 card) > >>> + * bit [6:4] : TYP(Packet Type) > >>> + * 000b: CCMD(Control command packet) > >>> + * 001b: DCMD(Data command packet) > >>> + * 010b: RES(Response packet) > >>> + * 011b: DATA(Data payload packet) > >>> + * 111b: MSG(Message packet) > >>> + * Others: Reserved > >>> + * bit [7] : NP(Native Packet) > >>> + * bit [10:8] : TID(Transaction ID) > >>> + * bit [11] : Reserved > >>> + * bit [15:12]: SID(Source ID 0: Node ID of Host) > >>> + * > >>> + * Broadcast CCMD issued by Host is represented as DID=SID=0. > >>> + */ > >>> +/* > >>> + * UHS2 Argument: > >>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-5, the format of CCMD Argument is described below: > >>> + * bit [3:0] : MSB of IOADR > >>> + * bit [5:4] : PLEN(Payload Length) > >>> + * 00b: 0 byte > >>> + * 01b: 4 bytes > >>> + * 10b: 8 bytes > >>> + * 11b: 16 bytes > >>> + * bit [6] : Reserved > >>> + * bit [7] : R/W(Read/Write) > >>> + * 0: Control read command > >>> + * 1: Control write command > >>> + * bit [15:8] : LSB of IOADR > >>> + * > >>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > >>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > >>> + */ > >>> +#define UHS2_NATIVE_PACKET_POS 7 > >>> +#define UHS2_NATIVE_PACKET (1 << UHS2_NATIVE_PACKET_POS) > >>> + > >>> +#define UHS2_PACKET_TYPE_POS 4 > >>> +#define UHS2_PACKET_TYPE_CCMD (0 << UHS2_PACKET_TYPE_POS) > >>> +#define UHS2_PACKET_TYPE_DCMD (1 << UHS2_PACKET_TYPE_POS) > >>> +#define UHS2_PACKET_TYPE_RES (2 << UHS2_PACKET_TYPE_POS) > >>> +#define UHS2_PACKET_TYPE_DATA (3 << UHS2_PACKET_TYPE_POS) > >>> +#define UHS2_PACKET_TYPE_MSG (7 << UHS2_PACKET_TYPE_POS) > >>> + > >>> +#define UHS2_DEST_ID_MASK 0x0F > >>> +#define UHS2_DEST_ID 0x1 > >>> + > >>> +#define UHS2_SRC_ID_POS 12 > >>> +#define UHS2_SRC_ID_MASK 0xF000 > >>> + > >>> +#define UHS2_TRANS_ID_POS 8 > >>> +#define UHS2_TRANS_ID_MASK 0x0700 > >>> + > >>> +/* UHS2 MSG */ > >>> +#define UHS2_MSG_CTG_POS 5 > >>> +#define UHS2_MSG_CTG_LMSG 0x00 > >>> +#define UHS2_MSG_CTG_INT 0x60 > >>> +#define UHS2_MSG_CTG_AMSG 0x80 > >>> + > >>> +#define UHS2_MSG_CTG_FCREQ 0x00 > >>> +#define UHS2_MSG_CTG_FCRDY 0x01 > >>> +#define UHS2_MSG_CTG_STAT 0x02 > >>> + > >>> +#define UHS2_MSG_CODE_POS 8 > >>> +#define UHS2_MSG_CODE_FC_UNRECOVER_ERR 0x8 > >>> +#define UHS2_MSG_CODE_STAT_UNRECOVER_ERR 0x8 > >>> +#define UHS2_MSG_CODE_STAT_RECOVER_ERR 0x1 > >>> + > >>> +/* TRANS Layer definition */ > >>> + > >>> +/* Native packets*/ > >>> +#define UHS2_NATIVE_CMD_RW_POS 7 > >>> +#define UHS2_NATIVE_CMD_WRITE (1 << UHS2_NATIVE_CMD_RW_POS) > >>> +#define UHS2_NATIVE_CMD_READ (0 << UHS2_NATIVE_CMD_RW_POS) > >>> + > >>> +#define UHS2_NATIVE_CMD_PLEN_POS 4 > >>> +#define UHS2_NATIVE_CMD_PLEN_4B (1 << UHS2_NATIVE_CMD_PLEN_POS) > >>> +#define UHS2_NATIVE_CMD_PLEN_8B (2 << UHS2_NATIVE_CMD_PLEN_POS) > >>> +#define UHS2_NATIVE_CMD_PLEN_16B (3 << UHS2_NATIVE_CMD_PLEN_POS) > >>> + > >>> +#define UHS2_NATIVE_CCMD_GET_MIOADR_MASK 0xF00 > >>> +#define UHS2_NATIVE_CCMD_MIOADR_MASK 0x0F > >>> + > >>> +#define UHS2_NATIVE_CCMD_LIOADR_POS 8 > >>> +#define UHS2_NATIVE_CCMD_GET_LIOADR_MASK 0x0FF > >>> + > >>> +#define UHS2_CCMD_DEV_INIT_COMPLETE_FLAG BIT(11) > >>> +#define UHS2_DEV_INIT_PAYLOAD_LEN 1 > >>> +#define UHS2_DEV_INIT_RESP_LEN 6 > >>> +#define UHS2_DEV_ENUM_PAYLOAD_LEN 1 > >>> +#define UHS2_DEV_ENUM_RESP_LEN 8 > >>> +#define UHS2_CFG_WRITE_PAYLOAD_LEN 2 > >>> +#define UHS2_CFG_WRITE_PHY_SET_RESP_LEN 4 > >>> +#define UHS2_CFG_WRITE_GENERIC_SET_RESP_LEN 5 > >>> +#define UHS2_GO_DORMANT_PAYLOAD_LEN 1 > >>> + > >>> +/* > >>> + * UHS2 Argument: > >>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-8, the format of DCMD Argument is described below: > >>> + * bit [3:0] : Reserved > >>> + * bit [6:3] : TMODE(Transfer Mode) > >>> + * bit 3: DAM(Data Access Mode) > >>> + * bit 4: TLUM(TLEN Unit Mode) > >>> + * bit 5: LM(Length Mode) > >>> + * bit 6: DM(Duplex Mode) > >>> + * bit [7] : R/W(Read/Write) > >>> + * 0: Control read command > >>> + * 1: Control write command > >>> + * bit [15:8] : Reserved > >>> + * > >>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > >>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > >>> + */ > >>> +#define UHS2_DCMD_DM_POS 6 > >>> +#define UHS2_DCMD_2L_HD_MODE (1 << UHS2_DCMD_DM_POS) > >>> +#define UHS2_DCMD_LM_POS 5 > >>> +#define UHS2_DCMD_LM_TLEN_EXIST (1 << UHS2_DCMD_LM_POS) > >>> +#define UHS2_DCMD_TLUM_POS 4 > >>> +#define UHS2_DCMD_TLUM_BYTE_MODE (1 << UHS2_DCMD_TLUM_POS) > >>> +#define UHS2_NATIVE_DCMD_DAM_POS 3 > >>> +#define UHS2_NATIVE_DCMD_DAM_IO (1 << UHS2_NATIVE_DCMD_DAM_POS) > >>> + > >>> +/* > >>> + * Per UHS2 spec, DCMD payload should be MSB first. There may be > >>> + * two types of data be assembled to MSB: > >>> + * 1. TLEN: Input block size for single read/write and number of blocks > >>> + * for multiple read/write to calculate TLEN as MSB first per spec. > >>> + * 2. SD command argument. > >>> + */ > >>> +static inline __be32 uhs2_dcmd_convert_msb(u32 input) > >>> +{ > >>> + u32 ret = 0; > >>> + > >>> + ret = ((input & 0xFF) << 24) | > >>> + (((input >> 8) & 0xFF) << 16) | > >>> + (((input >> 16) & 0xFF) << 8) | > >>> + ((input >> 24) & 0xFF); > >>> + return cpu_to_be32(ret); > >>> +} > >>> + > >>> +#define UHS2_RES_NACK_POS 7 > >>> +#define UHS2_RES_NACK_MASK (0x1 << UHS2_RES_NACK_POS) > >>> + > >>> +#define UHS2_RES_ECODE_POS 4 > >>> +#define UHS2_RES_ECODE_MASK 0x7 > >>> +#define UHS2_RES_ECODE_COND 1 > >>> +#define UHS2_RES_ECODE_ARG 2 > >>> +#define UHS2_RES_ECODE_GEN 3 > >>> + > >>> +/* IOADR of device registers */ > >>> +#define UHS2_IOADR_GENERIC_CAPS 0x00 > >>> +#define UHS2_IOADR_PHY_CAPS 0x02 > >>> +#define UHS2_IOADR_LINK_CAPS 0x04 > >>> +#define UHS2_IOADR_RSV_CAPS 0x06 > >>> +#define UHS2_IOADR_GENERIC_SETTINGS 0x08 > >>> +#define UHS2_IOADR_PHY_SETTINGS 0x0A > >>> +#define UHS2_IOADR_LINK_SETTINGS 0x0C > >>> +#define UHS2_IOADR_PRESET 0x40 > >>> + > >>> +/* SD application packets */ > >>> +#define UHS2_SD_CMD_INDEX_POS 8 > >>> + > >>> +#define UHS2_SD_CMD_APP_POS 14 > >>> +#define UHS2_SD_CMD_APP (1 << UHS2_SD_CMD_APP_POS) > >>> + > >>> +/* UHS-II Device Registers */ > >>> +#define UHS2_DEV_CONFIG_REG 0x000 > >>> + > >>> +/* General Caps and Settings registers */ > >>> +#define UHS2_DEV_CONFIG_GEN_CAPS (UHS2_DEV_CONFIG_REG + 0x000) > >>> +#define UHS2_DEV_CONFIG_N_LANES_POS 8 > >>> +#define UHS2_DEV_CONFIG_N_LANES_MASK 0x3F > >>> +#define UHS2_DEV_CONFIG_2L_HD_FD 0x1 > >>> +#define UHS2_DEV_CONFIG_2D1U_FD 0x2 > >>> +#define UHS2_DEV_CONFIG_1D2U_FD 0x4 > >>> +#define UHS2_DEV_CONFIG_2D2U_FD 0x8 > >>> +#define UHS2_DEV_CONFIG_DADR_POS 14 > >>> +#define UHS2_DEV_CONFIG_DADR_MASK 0x1 > >>> +#define UHS2_DEV_CONFIG_APP_POS 16 > >>> +#define UHS2_DEV_CONFIG_APP_MASK 0xFF > >>> +#define UHS2_DEV_CONFIG_APP_SD_MEM 0x1 > >>> + > >>> +#define UHS2_DEV_CONFIG_GEN_SET (UHS2_DEV_CONFIG_REG + 0x008) > >>> +#define UHS2_DEV_CONFIG_GEN_SET_N_LANES_POS 8 > >>> +#define UHS2_DEV_CONFIG_GEN_SET_2L_FD_HD 0x0 > >>> +#define UHS2_DEV_CONFIG_GEN_SET_2D1U_FD 0x2 > >>> +#define UHS2_DEV_CONFIG_GEN_SET_1D2U_FD 0x3 > >>> +#define UHS2_DEV_CONFIG_GEN_SET_2D2U_FD 0x4 > >>> +#define UHS2_DEV_CONFIG_GEN_SET_CFG_COMPLETE BIT(31) > >>> + > >>> +/* PHY Caps and Settings registers */ > >>> +#define UHS2_DEV_CONFIG_PHY_CAPS (UHS2_DEV_CONFIG_REG + 0x002) > >>> +#define UHS2_DEV_CONFIG_PHY_MINOR_MASK 0xF > >>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_POS 4 > >>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_MASK 0x3 > >>> +#define UHS2_DEV_CONFIG_CAN_HIBER_POS 15 > >>> +#define UHS2_DEV_CONFIG_CAN_HIBER_MASK 0x1 > >>> +#define UHS2_DEV_CONFIG_PHY_CAPS1 (UHS2_DEV_CONFIG_REG + 0x003) > >>> +#define UHS2_DEV_CONFIG_N_LSS_SYN_MASK 0xF > >>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_POS 4 > >>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_MASK 0xF > >>> + > >>> +#define UHS2_DEV_CONFIG_PHY_SET (UHS2_DEV_CONFIG_REG + 0x00A) > >>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_POS 6 > >>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_A 0x0 > >>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_B 0x1 > >>> + > >>> +/* LINK-TRAN Caps and Settings registers */ > >>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS (UHS2_DEV_CONFIG_REG + 0x004) > >>> +#define UHS2_DEV_CONFIG_LT_MINOR_MASK 0xF > >>> +#define UHS2_DEV_CONFIG_LT_MAJOR_POS 4 > >>> +#define UHS2_DEV_CONFIG_LT_MAJOR_MASK 0x3 > >>> +#define UHS2_DEV_CONFIG_N_FCU_POS 8 > >>> +#define UHS2_DEV_CONFIG_N_FCU_MASK 0xFF > >>> +#define UHS2_DEV_CONFIG_DEV_TYPE_POS 16 > >>> +#define UHS2_DEV_CONFIG_DEV_TYPE_MASK 0x7 > >>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_POS 20 > >>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_MASK 0xFFF > >>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS1 (UHS2_DEV_CONFIG_REG + 0x005) > >>> +#define UHS2_DEV_CONFIG_N_DATA_GAP_MASK 0xFF > >>> + > >>> +#define UHS2_DEV_CONFIG_LINK_TRAN_SET (UHS2_DEV_CONFIG_REG + 0x00C) > >>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_BLK_LEN 0x200 > >>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_RETRY_POS 16 > >>> + > >>> +/* Preset register */ > >>> +#define UHS2_DEV_CONFIG_PRESET (UHS2_DEV_CONFIG_REG + 0x040) > >>> + > >>> +#define UHS2_DEV_INT_REG 0x100 > >>> + > >>> +#define UHS2_DEV_STATUS_REG 0x180 > >>> + > >>> +#define UHS2_DEV_CMD_REG 0x200 > >>> +#define UHS2_DEV_CMD_FULL_RESET (UHS2_DEV_CMD_REG + 0x000) > >>> +#define UHS2_DEV_CMD_GO_DORMANT_STATE (UHS2_DEV_CMD_REG + 0x001) > >>> +#define UHS2_DEV_CMD_DORMANT_HIBER BIT(7) > >>> +#define UHS2_DEV_CMD_DEVICE_INIT (UHS2_DEV_CMD_REG + 0x002) > >>> +#define UHS2_DEV_INIT_COMPLETE_FLAG BIT(11) > >>> +#define UHS2_DEV_CMD_ENUMERATE (UHS2_DEV_CMD_REG + 0x003) > >>> +#define UHS2_DEV_CMD_TRANS_ABORT (UHS2_DEV_CMD_REG + 0x004) > >>> + > >>> +#define UHS2_RCLK_MAX 52000000 > >>> +#define UHS2_RCLK_MIN 26000000 > >>> + > >>> +struct sd_uhs2_wait_active_state_data { > >>> + struct mmc_host *host; > >>> + struct mmc_command *cmd; > >>> +}; > >>> + > >>> +#endif /* LINUX_MMC_UHS2_H */ > >> > > > > Thanks, Victor Shih > Best regards, Ben Chuang
On 17/11/22 08:19, Ben Chuang wrote: > Hi, > > On Wed, Nov 16, 2022 at 9:48 PM Adrian Hunter <adrian.hunter@intel.com> wrote: >> >> On 16/11/22 13:06, Victor Shih wrote: >>> Hi, Adrian >>> >>> On Wed, Nov 2, 2022 at 1:12 AM Adrian Hunter <adrian.hunter@intel.com> wrote: >>>> >>>> On 19/10/22 14:06, Victor Shih wrote: >>>>> Add UHS-II specific data structures for commands and defines for >>>>> registers, as described in Part 1 UHS-II Addendum Version 1.01. >>>>> >>>>> UHS-II related definitions are listed below: >>>>> 1. UHS-II card capability: sd_uhs2_caps{} >>>>> 2. UHS-II configuration: sd_uhs2_config{} >>>>> 3. UHS-II Command structure: uhs2_command{} >>>>> 4. UHS-II register I/O address and register field definitions: sd_uhs2.h >>>>> >>>>> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> >>>>> Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw> >>>>> Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> >>>>> --- >>>>> >>>>> Updates in V5: >>>>> - Added UHS2 interfaces in mmc_host_ops: host.h >>>>> - Added UHS2 VDD2 power supply in mmc_supply: host.h >>>>> - Added UHS2-specific OCR and UHS2 VDD2 max current in mmc_host: host.h >>>>> - Added definition of UHS2 VDD2 1.65v-1.95v in mmc_host: host.h >>>>> - Added flags/MMC_UHS2_SUPPORT/MMC_UHS2_2L_HD in mmc_host: host.h >>>>> --- >>>>> include/linux/mmc/card.h | 42 +++++- >>>>> include/linux/mmc/core.h | 13 ++ >>>>> include/linux/mmc/host.h | 70 +++++++++- >>>>> include/linux/mmc/sd_uhs2.h | 263 ++++++++++++++++++++++++++++++++++++ >>>>> 4 files changed, 386 insertions(+), 2 deletions(-) >>>>> create mode 100644 include/linux/mmc/sd_uhs2.h >>>>> >>>>> diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h >>>>> index 4a42f31b7bb0..d638a2c689cf 100644 >>>>> --- a/include/linux/mmc/card.h >>>>> +++ b/include/linux/mmc/card.h >>>>> @@ -190,6 +190,13 @@ struct sd_switch_caps { >>>>> #define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) >>>>> #define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) >>>>> #define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) >>>>> + unsigned int sd4_curr_limit; >>>>> +#define SD4_SET_POWER_LIMIT_0_72W 0 >>>>> +#define SD4_SET_POWER_LIMIT_1_44W 1 >>>>> +#define SD4_SET_POWER_LIMIT_2_16W 2 >>>>> +#define SD4_SET_POWER_LIMIT_2_88W 3 >>>>> +#define SD4_SET_POWER_LIMIT_1_80W 4 >>>>> +#define SD4_SET_POWER_NO_CHANGE (-1) >>>>> }; >>>>> >>>>> struct sd_ext_reg { >>>>> @@ -213,7 +220,35 @@ struct sd_ext_reg { >>>>> >>>>> struct sd_uhs2_config { >>>>> u32 node_id; >>>>> - /* TODO: Extend with more register configs. */ >>>>> + >>>>> + u32 dap; >>>>> + u32 gap; >>>>> + u32 n_fcu; >>>>> + u32 maxblk_len; >>>>> + u8 n_lanes; >>>>> + u8 dadr_len; >>>>> + u8 app_type; >>>>> + u8 phy_minor_rev; >>>>> + u8 phy_major_rev; >>>>> + u8 can_hibernate; >>>>> + u8 n_lss_sync; >>>>> + u8 n_lss_dir; >>>>> + u8 link_minor_rev; >>>>> + u8 link_major_rev; >>>>> + u8 dev_type; >>>>> + u8 n_data_gap; >>>>> + >>>>> + u32 n_fcu_set; >>>>> + u32 maxblk_len_set; >>>>> + u8 n_lanes_set; >>>>> + u8 speed_range_set; >>>>> + u8 n_lss_sync_set; >>>>> + u8 n_lss_dir_set; >>>>> + u8 n_data_gap_set; >>>>> + u8 pwrctrl_mode_set; >>>>> + u8 max_retry_set; >>>>> + >>>>> + u8 cfg_complete; >>>>> }; >>>>> >>>>> struct sdio_cccr { >>>>> @@ -323,6 +358,9 @@ struct mmc_card { >>>>> struct sd_ext_reg ext_perf; /* SD extension reg for PERF */ >>>>> >>>>> struct sd_uhs2_config uhs2_config; /* SD UHS-II config */ >>>>> + u8 uhs2_state; /* SD UHS-II states */ >>>>> +#define MMC_UHS2_INITIALIZED BIT(1) >>>>> +#define MMC_UHS2_SPEED_B BIT(2) >>>>> >>>>> unsigned int sdio_funcs; /* number of SDIO functions */ >>>>> atomic_t sdio_funcs_probed; /* number of probed SDIO funcs */ >>>>> @@ -364,4 +402,6 @@ bool mmc_card_is_blockaddr(struct mmc_card *card); >>>>> #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) >>>>> #define mmc_card_sd_combo(c) ((c)->type == MMC_TYPE_SD_COMBO) >>>>> >>>>> +#define mmc_card_can_poweroff_notify(c) ((c)->ext_power.feature_support & SD_EXT_POWER_OFF_NOTIFY) >>>>> + >>>>> #endif /* LINUX_MMC_CARD_H */ >>>>> diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h >>>>> index 6efec0b9820c..2a0581d87706 100644 >>>>> --- a/include/linux/mmc/core.h >>>>> +++ b/include/linux/mmc/core.h >>>>> @@ -23,6 +23,14 @@ enum mmc_blk_status { >>>>> MMC_BLK_NEW_REQUEST, >>>>> }; >>>>> >>>>> +struct uhs2_command { >>>>> + u16 header; >>>>> + u16 arg; >>>>> + __be32 *payload; >>>>> + u32 payload_len; >>>>> + u32 packet_len; >>>>> +}; >>>>> + >>>>> struct mmc_command { >>>>> u32 opcode; >>>>> u32 arg; >>>>> @@ -109,6 +117,11 @@ struct mmc_command { >>>>> unsigned int busy_timeout; /* busy detect timeout in ms */ >>>>> struct mmc_data *data; /* data segment associated with cmd */ >>>>> struct mmc_request *mrq; /* associated request */ >>>>> + >>>>> + struct uhs2_command *uhs2_cmd; /* UHS2 command */ >>>>> + u8 *uhs2_resp; /* UHS2 native cmd resp */ >>>>> + u8 uhs2_resp_len; /* UHS2 native cmd resp len */ >>>>> + u8 uhs2_tmode0_flag; /* UHS2 transfer mode flag */ >>>>> }; >>>>> >>>>> struct mmc_data { >>>>> diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h >>>>> index 895bcf7f80b7..249a9414ad10 100644 >>>>> --- a/include/linux/mmc/host.h >>>>> +++ b/include/linux/mmc/host.h >>>>> @@ -16,6 +16,7 @@ >>>>> #include <linux/mmc/pm.h> >>>>> #include <linux/dma-direction.h> >>>>> #include <linux/blk-crypto-profile.h> >>>>> +#include <linux/mmc/sd_uhs2.h> >>>>> >>>>> struct mmc_ios { >>>>> unsigned int clock; /* clock rate */ >>>>> @@ -96,7 +97,48 @@ struct mmc_clk_phase_map { >>>>> }; >>>>> >>>>> struct sd_uhs2_caps { >>>>> - /* TODO: Add UHS-II capabilities for the host. */ >>>>> + u32 dap; >>>>> + u32 gap; >>>>> + u32 group_desc; >>>>> + u32 maxblk_len; >>>>> + u32 n_fcu; >>>>> + u8 n_lanes; >>>>> + u8 addr64; >>>>> + u8 card_type; >>>>> + u8 phy_rev; >>>>> + u8 speed_range; >>>>> + u8 can_hibernate; >>>>> + u8 n_lss_sync; >>>>> + u8 n_lss_dir; >>>>> + u8 link_rev; >>>>> + u8 host_type; >>>>> + u8 n_data_gap; >>>>> + >>>>> + u32 maxblk_len_set; >>>>> + u32 n_fcu_set; >>>>> + u8 n_lanes_set; >>>>> + u8 n_lss_sync_set; >>>>> + u8 n_lss_dir_set; >>>>> + u8 n_data_gap_set; >>>>> + u8 max_retry_set; >>>>> +}; >>>>> + >>>>> +struct sd_uhs2_ios { >>>>> + bool is_2L_HD_mode; >>>>> + bool is_APP_CMD; >>>>> + unsigned int power_delay_ms; /* waiting for stable power */ >>>>> +}; >>>>> + >>>>> +enum sd_uhs2_operation { >>>>> + UHS2_PHY_INIT = 0, >>>>> + UHS2_SET_CONFIG, >>>>> + UHS2_ENABLE_INT, >>>>> + UHS2_DISABLE_INT, >>>>> + UHS2_ENABLE_CLK, >>>>> + UHS2_DISABLE_CLK, >>>>> + UHS2_CHECK_DORMANT, >>>>> + UHS2_SET_SPEED_B, >>>>> + UHS2_POST_ATTACH_SD, >>>>> }; >>>>> >>>>> struct mmc_host; >>>>> @@ -231,6 +273,20 @@ struct mmc_host_ops { >>>>> >>>>> /* Initialize an SD express card, mandatory for MMC_CAP2_SD_EXP. */ >>>>> int (*init_sd_express)(struct mmc_host *host, struct mmc_ios *ios); >>>>> + >>>>> + /* UHS2 interfaces */ >>>>> + int (*uhs2_detect_init)(struct mmc_host *host); >>>> >>>> Never called? >>> >>> Yes, I will delete it. >>> >>>> >>>>> + int (*uhs2_set_reg)(struct mmc_host *host, enum sd_uhs2_operation act); >>>> >>>> Never called? >>> >>> Yes, I will delete it. >>> >>>> >>>>> + int (*uhs2_disable_clk)(struct mmc_host *host); >>>> >>>> Never called? >>> >>> Yes, I will delete it. >>> >>>> >>>>> + int (*uhs2_enable_clk)(struct mmc_host *host); >>>> >>>> Never called? >>> >>> Yes, I will delete it. >>> >>>> >>>>> + >>>>> + /* >>>>> + * The uhs2_control callback is used to execute SD UHS-II specific >>>>> + * operations. It's mandatory to implement for hosts that supports the >>>>> + * SD UHS-II interface (MMC_CAP2_SD_UHS2). Expected return values are a >>>>> + * negative errno in case of a failure or zero for success. >>>>> + */ >>>>> + int (*uhs2_control)(struct mmc_host *host, enum sd_uhs2_operation op); >>>>> }; >>>>> >>>>> struct mmc_cqe_ops { >>>>> @@ -323,6 +379,7 @@ struct mmc_pwrseq; >>>>> >>>>> struct mmc_supply { >>>>> struct regulator *vmmc; /* Card power supply */ >>>>> + struct regulator *vmmc2; /* UHS2 VDD2 power supply */ >>>>> struct regulator *vqmmc; /* Optional Vccq supply */ >>>>> struct regulator *vqmmc2; /* Optional supply for phy */ >>>>> }; >>>>> @@ -344,10 +401,12 @@ struct mmc_host { >>>>> u32 ocr_avail_sdio; /* SDIO-specific OCR */ >>>>> u32 ocr_avail_sd; /* SD-specific OCR */ >>>>> u32 ocr_avail_mmc; /* MMC-specific OCR */ >>>>> + u32 ocr_avail_uhs2; /* UHS2-specific OCR */ >>>>> struct wakeup_source *ws; /* Enable consume of uevents */ >>>>> u32 max_current_330; >>>>> u32 max_current_300; >>>>> u32 max_current_180; >>>>> + u32 max_current_180_vdd2; /* UHS2 vdd2 max curt. */ >>>>> >>>>> #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ >>>>> #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ >>>>> @@ -366,6 +425,7 @@ struct mmc_host { >>>>> #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ >>>>> #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ >>>>> #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ >>>>> +#define MMC_VDD2_165_195 0x00000080 /* UHS2 VDD2 1.65 ~ 1.95 */ >>>>> >>>>> u32 caps; /* Host capabilities */ >>>>> >>>>> @@ -443,7 +503,12 @@ struct mmc_host { >>>>> #endif >>>>> #define MMC_CAP2_ALT_GPT_TEGRA (1 << 28) /* Host with eMMC that has GPT entry at a non-standard location */ >>>>> >>>>> + int flags; >>>>> +#define MMC_UHS2_SUPPORT (1 << 0) >>>> >>>> MMC_UHS2_SUPPORT is getting mixed up with MMC_UHS2_INITIALIZED. >>>> Both have the same value, but MMC_UHS2_SUPPORT is for >>>> host->flags and MMC_UHS2_INITIALIZED is for card->uhs2_state >>>> >>>> Please use the correct flag with the correct variable. >>>> >>> >>> The value of MMC_UHS2_SUPPORT is (1<<0) and the value of >>> MMC_UHS2_INITIALIZED is BIT(1). >>> Both have different values, therefore I'm not sure what you mean. >>> May you give me some more advice? Thanks. >> >> I guess I got confused about the values, however it is not OK to >> use MMC_UHS2_INITIALIZED for both mmc->flags and card->uhs2_state. >> Please make a separate define with a different name for mmc->flags >> version of MMC_UHS2_INITIALIZED. > > MMC_UHS2_INITIALIZED here is used to judge that the UHS-II I/F has been > initialized and can run in SD-TRAN. In this state, some SD commands > require a distinction. For example, ACMD (CMD55) should be set by the APP > field in UHS-II packet. OK, but SD commands cannot be sent in UHS-II mode without SD-TRAN so is the distinction needed? > >> >> Also, I am confused about the purpose of mmc->flags and >> card->uhs2_state. > > It looks like the mmc->flags and card->uhs2_state have the same purpose. > I think it is having trouble with card == NULL in mmc_app_cmd(*host, *card) > in patch [V5, 06/26] so just add one more mmc->flags. > Can wait for confirmation from Victor. > >> >> A host is UHS-II capable as represented by MMC_CAP2_SD_UHS2. >> To initialize and use a UHS-II card in UHS-II mode, the host >> must be in UHS-II mode. >> To initialize and use a UHS-II card in SD mode, the host >> must be in SD mode. >> So the state of the card and host is always the same: >> either UHS-II or not. Note, that is a consequence of the >> hardware I/F. Whether SD I/F or UHS-II I/F is used is >> decided before sending any UHS-II commands. SD I/F is >> disabled during UHS-II PHY initialization, whereas >> UHS-II I/F is disabled before execution of ACMD41 is >> completed. >> >> So it seems like there would only be a need for one flag >> to indicate UHS-II mode? >> >>> >>>>> +#define MMC_UHS2_2L_HD (1 << 2) >>>> >>>> MMC_UHS2_2L_HD does not seem to be used. Is it needed? >>> >>> I confirmed this, I don't use it, I will delete it. >>> >>>> >>>>> + >>>>> struct sd_uhs2_caps uhs2_caps; /* Host UHS-II capabilities */ >>>>> + struct sd_uhs2_ios uhs2_ios; /* Host UHS-II capabilities */ >>>>> >>>>> int fixed_drv_type; /* fixed driver type for non-removable media */ >>>>> >>>>> @@ -695,4 +760,7 @@ int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); >>>>> int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); >>>>> int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); >>>>> >>>>> +#define mmc_uhs2_2L_HD_mode(h) ((h)->uhs2_ios.is_2L_HD_mode) >>>>> +#define mmc_uhs2_APP_cmd(h) ((h)->uhs2_ios.is_APP_CMD) >>>>> + >>>>> #endif /* LINUX_MMC_HOST_H */ >>>>> diff --git a/include/linux/mmc/sd_uhs2.h b/include/linux/mmc/sd_uhs2.h >>>>> new file mode 100644 >>>>> index 000000000000..8fcf702cf4a5 >>>>> --- /dev/null >>>>> +++ b/include/linux/mmc/sd_uhs2.h >>>>> @@ -0,0 +1,263 @@ >>>>> +/* SPDX-License-Identifier: GPL-2.0-or-later */ >>>>> +/* >>>>> + * Header file for UHS-II packets, Host Controller registers and I/O >>>>> + * accessors. >>>>> + * >>>>> + * Copyright (C) 2014 Intel Corp, All Rights Reserved. >>>>> + */ >>>>> +#ifndef LINUX_MMC_UHS2_H >>>>> +#define LINUX_MMC_UHS2_H >>>>> + >>>>> +/* LINK Layer definition */ >>>>> +/* >>>>> + * UHS2 Header: >>>>> + * Refer to UHS-II Addendum Version 1.02 Figure 5-2, the format of CCMD Header is described below: >>>>> + * bit [3:0] : DID(Destination ID = Node ID of UHS2 card) >>>>> + * bit [6:4] : TYP(Packet Type) >>>>> + * 000b: CCMD(Control command packet) >>>>> + * 001b: DCMD(Data command packet) >>>>> + * 010b: RES(Response packet) >>>>> + * 011b: DATA(Data payload packet) >>>>> + * 111b: MSG(Message packet) >>>>> + * Others: Reserved >>>>> + * bit [7] : NP(Native Packet) >>>>> + * bit [10:8] : TID(Transaction ID) >>>>> + * bit [11] : Reserved >>>>> + * bit [15:12]: SID(Source ID 0: Node ID of Host) >>>>> + * >>>>> + * Broadcast CCMD issued by Host is represented as DID=SID=0. >>>>> + */ >>>>> +/* >>>>> + * UHS2 Argument: >>>>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-5, the format of CCMD Argument is described below: >>>>> + * bit [3:0] : MSB of IOADR >>>>> + * bit [5:4] : PLEN(Payload Length) >>>>> + * 00b: 0 byte >>>>> + * 01b: 4 bytes >>>>> + * 10b: 8 bytes >>>>> + * 11b: 16 bytes >>>>> + * bit [6] : Reserved >>>>> + * bit [7] : R/W(Read/Write) >>>>> + * 0: Control read command >>>>> + * 1: Control write command >>>>> + * bit [15:8] : LSB of IOADR >>>>> + * >>>>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. >>>>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. >>>>> + */ >>>>> +#define UHS2_NATIVE_PACKET_POS 7 >>>>> +#define UHS2_NATIVE_PACKET (1 << UHS2_NATIVE_PACKET_POS) >>>>> + >>>>> +#define UHS2_PACKET_TYPE_POS 4 >>>>> +#define UHS2_PACKET_TYPE_CCMD (0 << UHS2_PACKET_TYPE_POS) >>>>> +#define UHS2_PACKET_TYPE_DCMD (1 << UHS2_PACKET_TYPE_POS) >>>>> +#define UHS2_PACKET_TYPE_RES (2 << UHS2_PACKET_TYPE_POS) >>>>> +#define UHS2_PACKET_TYPE_DATA (3 << UHS2_PACKET_TYPE_POS) >>>>> +#define UHS2_PACKET_TYPE_MSG (7 << UHS2_PACKET_TYPE_POS) >>>>> + >>>>> +#define UHS2_DEST_ID_MASK 0x0F >>>>> +#define UHS2_DEST_ID 0x1 >>>>> + >>>>> +#define UHS2_SRC_ID_POS 12 >>>>> +#define UHS2_SRC_ID_MASK 0xF000 >>>>> + >>>>> +#define UHS2_TRANS_ID_POS 8 >>>>> +#define UHS2_TRANS_ID_MASK 0x0700 >>>>> + >>>>> +/* UHS2 MSG */ >>>>> +#define UHS2_MSG_CTG_POS 5 >>>>> +#define UHS2_MSG_CTG_LMSG 0x00 >>>>> +#define UHS2_MSG_CTG_INT 0x60 >>>>> +#define UHS2_MSG_CTG_AMSG 0x80 >>>>> + >>>>> +#define UHS2_MSG_CTG_FCREQ 0x00 >>>>> +#define UHS2_MSG_CTG_FCRDY 0x01 >>>>> +#define UHS2_MSG_CTG_STAT 0x02 >>>>> + >>>>> +#define UHS2_MSG_CODE_POS 8 >>>>> +#define UHS2_MSG_CODE_FC_UNRECOVER_ERR 0x8 >>>>> +#define UHS2_MSG_CODE_STAT_UNRECOVER_ERR 0x8 >>>>> +#define UHS2_MSG_CODE_STAT_RECOVER_ERR 0x1 >>>>> + >>>>> +/* TRANS Layer definition */ >>>>> + >>>>> +/* Native packets*/ >>>>> +#define UHS2_NATIVE_CMD_RW_POS 7 >>>>> +#define UHS2_NATIVE_CMD_WRITE (1 << UHS2_NATIVE_CMD_RW_POS) >>>>> +#define UHS2_NATIVE_CMD_READ (0 << UHS2_NATIVE_CMD_RW_POS) >>>>> + >>>>> +#define UHS2_NATIVE_CMD_PLEN_POS 4 >>>>> +#define UHS2_NATIVE_CMD_PLEN_4B (1 << UHS2_NATIVE_CMD_PLEN_POS) >>>>> +#define UHS2_NATIVE_CMD_PLEN_8B (2 << UHS2_NATIVE_CMD_PLEN_POS) >>>>> +#define UHS2_NATIVE_CMD_PLEN_16B (3 << UHS2_NATIVE_CMD_PLEN_POS) >>>>> + >>>>> +#define UHS2_NATIVE_CCMD_GET_MIOADR_MASK 0xF00 >>>>> +#define UHS2_NATIVE_CCMD_MIOADR_MASK 0x0F >>>>> + >>>>> +#define UHS2_NATIVE_CCMD_LIOADR_POS 8 >>>>> +#define UHS2_NATIVE_CCMD_GET_LIOADR_MASK 0x0FF >>>>> + >>>>> +#define UHS2_CCMD_DEV_INIT_COMPLETE_FLAG BIT(11) >>>>> +#define UHS2_DEV_INIT_PAYLOAD_LEN 1 >>>>> +#define UHS2_DEV_INIT_RESP_LEN 6 >>>>> +#define UHS2_DEV_ENUM_PAYLOAD_LEN 1 >>>>> +#define UHS2_DEV_ENUM_RESP_LEN 8 >>>>> +#define UHS2_CFG_WRITE_PAYLOAD_LEN 2 >>>>> +#define UHS2_CFG_WRITE_PHY_SET_RESP_LEN 4 >>>>> +#define UHS2_CFG_WRITE_GENERIC_SET_RESP_LEN 5 >>>>> +#define UHS2_GO_DORMANT_PAYLOAD_LEN 1 >>>>> + >>>>> +/* >>>>> + * UHS2 Argument: >>>>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-8, the format of DCMD Argument is described below: >>>>> + * bit [3:0] : Reserved >>>>> + * bit [6:3] : TMODE(Transfer Mode) >>>>> + * bit 3: DAM(Data Access Mode) >>>>> + * bit 4: TLUM(TLEN Unit Mode) >>>>> + * bit 5: LM(Length Mode) >>>>> + * bit 6: DM(Duplex Mode) >>>>> + * bit [7] : R/W(Read/Write) >>>>> + * 0: Control read command >>>>> + * 1: Control write command >>>>> + * bit [15:8] : Reserved >>>>> + * >>>>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. >>>>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. >>>>> + */ >>>>> +#define UHS2_DCMD_DM_POS 6 >>>>> +#define UHS2_DCMD_2L_HD_MODE (1 << UHS2_DCMD_DM_POS) >>>>> +#define UHS2_DCMD_LM_POS 5 >>>>> +#define UHS2_DCMD_LM_TLEN_EXIST (1 << UHS2_DCMD_LM_POS) >>>>> +#define UHS2_DCMD_TLUM_POS 4 >>>>> +#define UHS2_DCMD_TLUM_BYTE_MODE (1 << UHS2_DCMD_TLUM_POS) >>>>> +#define UHS2_NATIVE_DCMD_DAM_POS 3 >>>>> +#define UHS2_NATIVE_DCMD_DAM_IO (1 << UHS2_NATIVE_DCMD_DAM_POS) >>>>> + >>>>> +/* >>>>> + * Per UHS2 spec, DCMD payload should be MSB first. There may be >>>>> + * two types of data be assembled to MSB: >>>>> + * 1. TLEN: Input block size for single read/write and number of blocks >>>>> + * for multiple read/write to calculate TLEN as MSB first per spec. >>>>> + * 2. SD command argument. >>>>> + */ >>>>> +static inline __be32 uhs2_dcmd_convert_msb(u32 input) >>>>> +{ >>>>> + u32 ret = 0; >>>>> + >>>>> + ret = ((input & 0xFF) << 24) | >>>>> + (((input >> 8) & 0xFF) << 16) | >>>>> + (((input >> 16) & 0xFF) << 8) | >>>>> + ((input >> 24) & 0xFF); >>>>> + return cpu_to_be32(ret); >>>>> +} >>>>> + >>>>> +#define UHS2_RES_NACK_POS 7 >>>>> +#define UHS2_RES_NACK_MASK (0x1 << UHS2_RES_NACK_POS) >>>>> + >>>>> +#define UHS2_RES_ECODE_POS 4 >>>>> +#define UHS2_RES_ECODE_MASK 0x7 >>>>> +#define UHS2_RES_ECODE_COND 1 >>>>> +#define UHS2_RES_ECODE_ARG 2 >>>>> +#define UHS2_RES_ECODE_GEN 3 >>>>> + >>>>> +/* IOADR of device registers */ >>>>> +#define UHS2_IOADR_GENERIC_CAPS 0x00 >>>>> +#define UHS2_IOADR_PHY_CAPS 0x02 >>>>> +#define UHS2_IOADR_LINK_CAPS 0x04 >>>>> +#define UHS2_IOADR_RSV_CAPS 0x06 >>>>> +#define UHS2_IOADR_GENERIC_SETTINGS 0x08 >>>>> +#define UHS2_IOADR_PHY_SETTINGS 0x0A >>>>> +#define UHS2_IOADR_LINK_SETTINGS 0x0C >>>>> +#define UHS2_IOADR_PRESET 0x40 >>>>> + >>>>> +/* SD application packets */ >>>>> +#define UHS2_SD_CMD_INDEX_POS 8 >>>>> + >>>>> +#define UHS2_SD_CMD_APP_POS 14 >>>>> +#define UHS2_SD_CMD_APP (1 << UHS2_SD_CMD_APP_POS) >>>>> + >>>>> +/* UHS-II Device Registers */ >>>>> +#define UHS2_DEV_CONFIG_REG 0x000 >>>>> + >>>>> +/* General Caps and Settings registers */ >>>>> +#define UHS2_DEV_CONFIG_GEN_CAPS (UHS2_DEV_CONFIG_REG + 0x000) >>>>> +#define UHS2_DEV_CONFIG_N_LANES_POS 8 >>>>> +#define UHS2_DEV_CONFIG_N_LANES_MASK 0x3F >>>>> +#define UHS2_DEV_CONFIG_2L_HD_FD 0x1 >>>>> +#define UHS2_DEV_CONFIG_2D1U_FD 0x2 >>>>> +#define UHS2_DEV_CONFIG_1D2U_FD 0x4 >>>>> +#define UHS2_DEV_CONFIG_2D2U_FD 0x8 >>>>> +#define UHS2_DEV_CONFIG_DADR_POS 14 >>>>> +#define UHS2_DEV_CONFIG_DADR_MASK 0x1 >>>>> +#define UHS2_DEV_CONFIG_APP_POS 16 >>>>> +#define UHS2_DEV_CONFIG_APP_MASK 0xFF >>>>> +#define UHS2_DEV_CONFIG_APP_SD_MEM 0x1 >>>>> + >>>>> +#define UHS2_DEV_CONFIG_GEN_SET (UHS2_DEV_CONFIG_REG + 0x008) >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_N_LANES_POS 8 >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_2L_FD_HD 0x0 >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_2D1U_FD 0x2 >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_1D2U_FD 0x3 >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_2D2U_FD 0x4 >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_CFG_COMPLETE BIT(31) >>>>> + >>>>> +/* PHY Caps and Settings registers */ >>>>> +#define UHS2_DEV_CONFIG_PHY_CAPS (UHS2_DEV_CONFIG_REG + 0x002) >>>>> +#define UHS2_DEV_CONFIG_PHY_MINOR_MASK 0xF >>>>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_POS 4 >>>>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_MASK 0x3 >>>>> +#define UHS2_DEV_CONFIG_CAN_HIBER_POS 15 >>>>> +#define UHS2_DEV_CONFIG_CAN_HIBER_MASK 0x1 >>>>> +#define UHS2_DEV_CONFIG_PHY_CAPS1 (UHS2_DEV_CONFIG_REG + 0x003) >>>>> +#define UHS2_DEV_CONFIG_N_LSS_SYN_MASK 0xF >>>>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_POS 4 >>>>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_MASK 0xF >>>>> + >>>>> +#define UHS2_DEV_CONFIG_PHY_SET (UHS2_DEV_CONFIG_REG + 0x00A) >>>>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_POS 6 >>>>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_A 0x0 >>>>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_B 0x1 >>>>> + >>>>> +/* LINK-TRAN Caps and Settings registers */ >>>>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS (UHS2_DEV_CONFIG_REG + 0x004) >>>>> +#define UHS2_DEV_CONFIG_LT_MINOR_MASK 0xF >>>>> +#define UHS2_DEV_CONFIG_LT_MAJOR_POS 4 >>>>> +#define UHS2_DEV_CONFIG_LT_MAJOR_MASK 0x3 >>>>> +#define UHS2_DEV_CONFIG_N_FCU_POS 8 >>>>> +#define UHS2_DEV_CONFIG_N_FCU_MASK 0xFF >>>>> +#define UHS2_DEV_CONFIG_DEV_TYPE_POS 16 >>>>> +#define UHS2_DEV_CONFIG_DEV_TYPE_MASK 0x7 >>>>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_POS 20 >>>>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_MASK 0xFFF >>>>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS1 (UHS2_DEV_CONFIG_REG + 0x005) >>>>> +#define UHS2_DEV_CONFIG_N_DATA_GAP_MASK 0xFF >>>>> + >>>>> +#define UHS2_DEV_CONFIG_LINK_TRAN_SET (UHS2_DEV_CONFIG_REG + 0x00C) >>>>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_BLK_LEN 0x200 >>>>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_RETRY_POS 16 >>>>> + >>>>> +/* Preset register */ >>>>> +#define UHS2_DEV_CONFIG_PRESET (UHS2_DEV_CONFIG_REG + 0x040) >>>>> + >>>>> +#define UHS2_DEV_INT_REG 0x100 >>>>> + >>>>> +#define UHS2_DEV_STATUS_REG 0x180 >>>>> + >>>>> +#define UHS2_DEV_CMD_REG 0x200 >>>>> +#define UHS2_DEV_CMD_FULL_RESET (UHS2_DEV_CMD_REG + 0x000) >>>>> +#define UHS2_DEV_CMD_GO_DORMANT_STATE (UHS2_DEV_CMD_REG + 0x001) >>>>> +#define UHS2_DEV_CMD_DORMANT_HIBER BIT(7) >>>>> +#define UHS2_DEV_CMD_DEVICE_INIT (UHS2_DEV_CMD_REG + 0x002) >>>>> +#define UHS2_DEV_INIT_COMPLETE_FLAG BIT(11) >>>>> +#define UHS2_DEV_CMD_ENUMERATE (UHS2_DEV_CMD_REG + 0x003) >>>>> +#define UHS2_DEV_CMD_TRANS_ABORT (UHS2_DEV_CMD_REG + 0x004) >>>>> + >>>>> +#define UHS2_RCLK_MAX 52000000 >>>>> +#define UHS2_RCLK_MIN 26000000 >>>>> + >>>>> +struct sd_uhs2_wait_active_state_data { >>>>> + struct mmc_host *host; >>>>> + struct mmc_command *cmd; >>>>> +}; >>>>> + >>>>> +#endif /* LINUX_MMC_UHS2_H */ >>>> >>> >>> Thanks, Victor Shih >> > > Best regards, > Ben Chuang
On Fri, Nov 18, 2022 at 12:05 AM Adrian Hunter <adrian.hunter@intel.com> wrote: > > On 17/11/22 08:19, Ben Chuang wrote: > > Hi, > > > > On Wed, Nov 16, 2022 at 9:48 PM Adrian Hunter <adrian.hunter@intel.com> wrote: > >> > >> On 16/11/22 13:06, Victor Shih wrote: > >>> Hi, Adrian > >>> > >>> On Wed, Nov 2, 2022 at 1:12 AM Adrian Hunter <adrian.hunter@intel.com> wrote: > >>>> > >>>> On 19/10/22 14:06, Victor Shih wrote: > >>>>> Add UHS-II specific data structures for commands and defines for > >>>>> registers, as described in Part 1 UHS-II Addendum Version 1.01. > >>>>> > >>>>> UHS-II related definitions are listed below: > >>>>> 1. UHS-II card capability: sd_uhs2_caps{} > >>>>> 2. UHS-II configuration: sd_uhs2_config{} > >>>>> 3. UHS-II Command structure: uhs2_command{} > >>>>> 4. UHS-II register I/O address and register field definitions: sd_uhs2.h > >>>>> > >>>>> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> > >>>>> Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw> > >>>>> Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> > >>>>> --- > >>>>> > >>>>> Updates in V5: > >>>>> - Added UHS2 interfaces in mmc_host_ops: host.h > >>>>> - Added UHS2 VDD2 power supply in mmc_supply: host.h > >>>>> - Added UHS2-specific OCR and UHS2 VDD2 max current in mmc_host: host.h > >>>>> - Added definition of UHS2 VDD2 1.65v-1.95v in mmc_host: host.h > >>>>> - Added flags/MMC_UHS2_SUPPORT/MMC_UHS2_2L_HD in mmc_host: host.h > >>>>> --- > >>>>> include/linux/mmc/card.h | 42 +++++- > >>>>> include/linux/mmc/core.h | 13 ++ > >>>>> include/linux/mmc/host.h | 70 +++++++++- > >>>>> include/linux/mmc/sd_uhs2.h | 263 ++++++++++++++++++++++++++++++++++++ > >>>>> 4 files changed, 386 insertions(+), 2 deletions(-) > >>>>> create mode 100644 include/linux/mmc/sd_uhs2.h > >>>>> > >>>>> diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h > >>>>> index 4a42f31b7bb0..d638a2c689cf 100644 > >>>>> --- a/include/linux/mmc/card.h > >>>>> +++ b/include/linux/mmc/card.h > >>>>> @@ -190,6 +190,13 @@ struct sd_switch_caps { > >>>>> #define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) > >>>>> #define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) > >>>>> #define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) > >>>>> + unsigned int sd4_curr_limit; > >>>>> +#define SD4_SET_POWER_LIMIT_0_72W 0 > >>>>> +#define SD4_SET_POWER_LIMIT_1_44W 1 > >>>>> +#define SD4_SET_POWER_LIMIT_2_16W 2 > >>>>> +#define SD4_SET_POWER_LIMIT_2_88W 3 > >>>>> +#define SD4_SET_POWER_LIMIT_1_80W 4 > >>>>> +#define SD4_SET_POWER_NO_CHANGE (-1) > >>>>> }; > >>>>> > >>>>> struct sd_ext_reg { > >>>>> @@ -213,7 +220,35 @@ struct sd_ext_reg { > >>>>> > >>>>> struct sd_uhs2_config { > >>>>> u32 node_id; > >>>>> - /* TODO: Extend with more register configs. */ > >>>>> + > >>>>> + u32 dap; > >>>>> + u32 gap; > >>>>> + u32 n_fcu; > >>>>> + u32 maxblk_len; > >>>>> + u8 n_lanes; > >>>>> + u8 dadr_len; > >>>>> + u8 app_type; > >>>>> + u8 phy_minor_rev; > >>>>> + u8 phy_major_rev; > >>>>> + u8 can_hibernate; > >>>>> + u8 n_lss_sync; > >>>>> + u8 n_lss_dir; > >>>>> + u8 link_minor_rev; > >>>>> + u8 link_major_rev; > >>>>> + u8 dev_type; > >>>>> + u8 n_data_gap; > >>>>> + > >>>>> + u32 n_fcu_set; > >>>>> + u32 maxblk_len_set; > >>>>> + u8 n_lanes_set; > >>>>> + u8 speed_range_set; > >>>>> + u8 n_lss_sync_set; > >>>>> + u8 n_lss_dir_set; > >>>>> + u8 n_data_gap_set; > >>>>> + u8 pwrctrl_mode_set; > >>>>> + u8 max_retry_set; > >>>>> + > >>>>> + u8 cfg_complete; > >>>>> }; > >>>>> > >>>>> struct sdio_cccr { > >>>>> @@ -323,6 +358,9 @@ struct mmc_card { > >>>>> struct sd_ext_reg ext_perf; /* SD extension reg for PERF */ > >>>>> > >>>>> struct sd_uhs2_config uhs2_config; /* SD UHS-II config */ > >>>>> + u8 uhs2_state; /* SD UHS-II states */ > >>>>> +#define MMC_UHS2_INITIALIZED BIT(1) > >>>>> +#define MMC_UHS2_SPEED_B BIT(2) > >>>>> > >>>>> unsigned int sdio_funcs; /* number of SDIO functions */ > >>>>> atomic_t sdio_funcs_probed; /* number of probed SDIO funcs */ > >>>>> @@ -364,4 +402,6 @@ bool mmc_card_is_blockaddr(struct mmc_card *card); > >>>>> #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) > >>>>> #define mmc_card_sd_combo(c) ((c)->type == MMC_TYPE_SD_COMBO) > >>>>> > >>>>> +#define mmc_card_can_poweroff_notify(c) ((c)->ext_power.feature_support & SD_EXT_POWER_OFF_NOTIFY) > >>>>> + > >>>>> #endif /* LINUX_MMC_CARD_H */ > >>>>> diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h > >>>>> index 6efec0b9820c..2a0581d87706 100644 > >>>>> --- a/include/linux/mmc/core.h > >>>>> +++ b/include/linux/mmc/core.h > >>>>> @@ -23,6 +23,14 @@ enum mmc_blk_status { > >>>>> MMC_BLK_NEW_REQUEST, > >>>>> }; > >>>>> > >>>>> +struct uhs2_command { > >>>>> + u16 header; > >>>>> + u16 arg; > >>>>> + __be32 *payload; > >>>>> + u32 payload_len; > >>>>> + u32 packet_len; > >>>>> +}; > >>>>> + > >>>>> struct mmc_command { > >>>>> u32 opcode; > >>>>> u32 arg; > >>>>> @@ -109,6 +117,11 @@ struct mmc_command { > >>>>> unsigned int busy_timeout; /* busy detect timeout in ms */ > >>>>> struct mmc_data *data; /* data segment associated with cmd */ > >>>>> struct mmc_request *mrq; /* associated request */ > >>>>> + > >>>>> + struct uhs2_command *uhs2_cmd; /* UHS2 command */ > >>>>> + u8 *uhs2_resp; /* UHS2 native cmd resp */ > >>>>> + u8 uhs2_resp_len; /* UHS2 native cmd resp len */ > >>>>> + u8 uhs2_tmode0_flag; /* UHS2 transfer mode flag */ > >>>>> }; > >>>>> > >>>>> struct mmc_data { > >>>>> diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h > >>>>> index 895bcf7f80b7..249a9414ad10 100644 > >>>>> --- a/include/linux/mmc/host.h > >>>>> +++ b/include/linux/mmc/host.h > >>>>> @@ -16,6 +16,7 @@ > >>>>> #include <linux/mmc/pm.h> > >>>>> #include <linux/dma-direction.h> > >>>>> #include <linux/blk-crypto-profile.h> > >>>>> +#include <linux/mmc/sd_uhs2.h> > >>>>> > >>>>> struct mmc_ios { > >>>>> unsigned int clock; /* clock rate */ > >>>>> @@ -96,7 +97,48 @@ struct mmc_clk_phase_map { > >>>>> }; > >>>>> > >>>>> struct sd_uhs2_caps { > >>>>> - /* TODO: Add UHS-II capabilities for the host. */ > >>>>> + u32 dap; > >>>>> + u32 gap; > >>>>> + u32 group_desc; > >>>>> + u32 maxblk_len; > >>>>> + u32 n_fcu; > >>>>> + u8 n_lanes; > >>>>> + u8 addr64; > >>>>> + u8 card_type; > >>>>> + u8 phy_rev; > >>>>> + u8 speed_range; > >>>>> + u8 can_hibernate; > >>>>> + u8 n_lss_sync; > >>>>> + u8 n_lss_dir; > >>>>> + u8 link_rev; > >>>>> + u8 host_type; > >>>>> + u8 n_data_gap; > >>>>> + > >>>>> + u32 maxblk_len_set; > >>>>> + u32 n_fcu_set; > >>>>> + u8 n_lanes_set; > >>>>> + u8 n_lss_sync_set; > >>>>> + u8 n_lss_dir_set; > >>>>> + u8 n_data_gap_set; > >>>>> + u8 max_retry_set; > >>>>> +}; > >>>>> + > >>>>> +struct sd_uhs2_ios { > >>>>> + bool is_2L_HD_mode; > >>>>> + bool is_APP_CMD; > >>>>> + unsigned int power_delay_ms; /* waiting for stable power */ > >>>>> +}; > >>>>> + > >>>>> +enum sd_uhs2_operation { > >>>>> + UHS2_PHY_INIT = 0, > >>>>> + UHS2_SET_CONFIG, > >>>>> + UHS2_ENABLE_INT, > >>>>> + UHS2_DISABLE_INT, > >>>>> + UHS2_ENABLE_CLK, > >>>>> + UHS2_DISABLE_CLK, > >>>>> + UHS2_CHECK_DORMANT, > >>>>> + UHS2_SET_SPEED_B, > >>>>> + UHS2_POST_ATTACH_SD, > >>>>> }; > >>>>> > >>>>> struct mmc_host; > >>>>> @@ -231,6 +273,20 @@ struct mmc_host_ops { > >>>>> > >>>>> /* Initialize an SD express card, mandatory for MMC_CAP2_SD_EXP. */ > >>>>> int (*init_sd_express)(struct mmc_host *host, struct mmc_ios *ios); > >>>>> + > >>>>> + /* UHS2 interfaces */ > >>>>> + int (*uhs2_detect_init)(struct mmc_host *host); > >>>> > >>>> Never called? > >>> > >>> Yes, I will delete it. > >>> > >>>> > >>>>> + int (*uhs2_set_reg)(struct mmc_host *host, enum sd_uhs2_operation act); > >>>> > >>>> Never called? > >>> > >>> Yes, I will delete it. > >>> > >>>> > >>>>> + int (*uhs2_disable_clk)(struct mmc_host *host); > >>>> > >>>> Never called? > >>> > >>> Yes, I will delete it. > >>> > >>>> > >>>>> + int (*uhs2_enable_clk)(struct mmc_host *host); > >>>> > >>>> Never called? > >>> > >>> Yes, I will delete it. > >>> > >>>> > >>>>> + > >>>>> + /* > >>>>> + * The uhs2_control callback is used to execute SD UHS-II specific > >>>>> + * operations. It's mandatory to implement for hosts that supports the > >>>>> + * SD UHS-II interface (MMC_CAP2_SD_UHS2). Expected return values are a > >>>>> + * negative errno in case of a failure or zero for success. > >>>>> + */ > >>>>> + int (*uhs2_control)(struct mmc_host *host, enum sd_uhs2_operation op); > >>>>> }; > >>>>> > >>>>> struct mmc_cqe_ops { > >>>>> @@ -323,6 +379,7 @@ struct mmc_pwrseq; > >>>>> > >>>>> struct mmc_supply { > >>>>> struct regulator *vmmc; /* Card power supply */ > >>>>> + struct regulator *vmmc2; /* UHS2 VDD2 power supply */ > >>>>> struct regulator *vqmmc; /* Optional Vccq supply */ > >>>>> struct regulator *vqmmc2; /* Optional supply for phy */ > >>>>> }; > >>>>> @@ -344,10 +401,12 @@ struct mmc_host { > >>>>> u32 ocr_avail_sdio; /* SDIO-specific OCR */ > >>>>> u32 ocr_avail_sd; /* SD-specific OCR */ > >>>>> u32 ocr_avail_mmc; /* MMC-specific OCR */ > >>>>> + u32 ocr_avail_uhs2; /* UHS2-specific OCR */ > >>>>> struct wakeup_source *ws; /* Enable consume of uevents */ > >>>>> u32 max_current_330; > >>>>> u32 max_current_300; > >>>>> u32 max_current_180; > >>>>> + u32 max_current_180_vdd2; /* UHS2 vdd2 max curt. */ > >>>>> > >>>>> #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ > >>>>> #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ > >>>>> @@ -366,6 +425,7 @@ struct mmc_host { > >>>>> #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ > >>>>> #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ > >>>>> #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ > >>>>> +#define MMC_VDD2_165_195 0x00000080 /* UHS2 VDD2 1.65 ~ 1.95 */ > >>>>> > >>>>> u32 caps; /* Host capabilities */ > >>>>> > >>>>> @@ -443,7 +503,12 @@ struct mmc_host { > >>>>> #endif > >>>>> #define MMC_CAP2_ALT_GPT_TEGRA (1 << 28) /* Host with eMMC that has GPT entry at a non-standard location */ > >>>>> > >>>>> + int flags; > >>>>> +#define MMC_UHS2_SUPPORT (1 << 0) > >>>> > >>>> MMC_UHS2_SUPPORT is getting mixed up with MMC_UHS2_INITIALIZED. > >>>> Both have the same value, but MMC_UHS2_SUPPORT is for > >>>> host->flags and MMC_UHS2_INITIALIZED is for card->uhs2_state > >>>> > >>>> Please use the correct flag with the correct variable. > >>>> > >>> > >>> The value of MMC_UHS2_SUPPORT is (1<<0) and the value of > >>> MMC_UHS2_INITIALIZED is BIT(1). > >>> Both have different values, therefore I'm not sure what you mean. > >>> May you give me some more advice? Thanks. > >> > >> I guess I got confused about the values, however it is not OK to > >> use MMC_UHS2_INITIALIZED for both mmc->flags and card->uhs2_state. > >> Please make a separate define with a different name for mmc->flags > >> version of MMC_UHS2_INITIALIZED. > > > > MMC_UHS2_INITIALIZED here is used to judge that the UHS-II I/F has been > > initialized and can run in SD-TRAN. In this state, some SD commands > > require a distinction. For example, ACMD (CMD55) should be set by the APP > > field in UHS-II packet. > > OK, but SD commands cannot be sent in UHS-II mode without SD-TRAN > so is the distinction needed? No need, if these SD commands are sent in SD_TRAN mode. > > > > >> > >> Also, I am confused about the purpose of mmc->flags and > >> card->uhs2_state. > > > > It looks like the mmc->flags and card->uhs2_state have the same purpose. > > I think it is having trouble with card == NULL in mmc_app_cmd(*host, *card) > > in patch [V5, 06/26] so just add one more mmc->flags. > > Can wait for confirmation from Victor. > > > >> > >> A host is UHS-II capable as represented by MMC_CAP2_SD_UHS2. > >> To initialize and use a UHS-II card in UHS-II mode, the host > >> must be in UHS-II mode. > >> To initialize and use a UHS-II card in SD mode, the host > >> must be in SD mode. > >> So the state of the card and host is always the same: > >> either UHS-II or not. Note, that is a consequence of the > >> hardware I/F. Whether SD I/F or UHS-II I/F is used is > >> decided before sending any UHS-II commands. SD I/F is > >> disabled during UHS-II PHY initialization, whereas > >> UHS-II I/F is disabled before execution of ACMD41 is > >> completed. > >> > >> So it seems like there would only be a need for one flag > >> to indicate UHS-II mode? > >> > >>> > >>>>> +#define MMC_UHS2_2L_HD (1 << 2) > >>>> > >>>> MMC_UHS2_2L_HD does not seem to be used. Is it needed? > >>> > >>> I confirmed this, I don't use it, I will delete it. > >>> > >>>> > >>>>> + > >>>>> struct sd_uhs2_caps uhs2_caps; /* Host UHS-II capabilities */ > >>>>> + struct sd_uhs2_ios uhs2_ios; /* Host UHS-II capabilities */ > >>>>> > >>>>> int fixed_drv_type; /* fixed driver type for non-removable media */ > >>>>> > >>>>> @@ -695,4 +760,7 @@ int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); > >>>>> int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); > >>>>> int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); > >>>>> > >>>>> +#define mmc_uhs2_2L_HD_mode(h) ((h)->uhs2_ios.is_2L_HD_mode) > >>>>> +#define mmc_uhs2_APP_cmd(h) ((h)->uhs2_ios.is_APP_CMD) > >>>>> + > >>>>> #endif /* LINUX_MMC_HOST_H */ > >>>>> diff --git a/include/linux/mmc/sd_uhs2.h b/include/linux/mmc/sd_uhs2.h > >>>>> new file mode 100644 > >>>>> index 000000000000..8fcf702cf4a5 > >>>>> --- /dev/null > >>>>> +++ b/include/linux/mmc/sd_uhs2.h > >>>>> @@ -0,0 +1,263 @@ > >>>>> +/* SPDX-License-Identifier: GPL-2.0-or-later */ > >>>>> +/* > >>>>> + * Header file for UHS-II packets, Host Controller registers and I/O > >>>>> + * accessors. > >>>>> + * > >>>>> + * Copyright (C) 2014 Intel Corp, All Rights Reserved. > >>>>> + */ > >>>>> +#ifndef LINUX_MMC_UHS2_H > >>>>> +#define LINUX_MMC_UHS2_H > >>>>> + > >>>>> +/* LINK Layer definition */ > >>>>> +/* > >>>>> + * UHS2 Header: > >>>>> + * Refer to UHS-II Addendum Version 1.02 Figure 5-2, the format of CCMD Header is described below: > >>>>> + * bit [3:0] : DID(Destination ID = Node ID of UHS2 card) > >>>>> + * bit [6:4] : TYP(Packet Type) > >>>>> + * 000b: CCMD(Control command packet) > >>>>> + * 001b: DCMD(Data command packet) > >>>>> + * 010b: RES(Response packet) > >>>>> + * 011b: DATA(Data payload packet) > >>>>> + * 111b: MSG(Message packet) > >>>>> + * Others: Reserved > >>>>> + * bit [7] : NP(Native Packet) > >>>>> + * bit [10:8] : TID(Transaction ID) > >>>>> + * bit [11] : Reserved > >>>>> + * bit [15:12]: SID(Source ID 0: Node ID of Host) > >>>>> + * > >>>>> + * Broadcast CCMD issued by Host is represented as DID=SID=0. > >>>>> + */ > >>>>> +/* > >>>>> + * UHS2 Argument: > >>>>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-5, the format of CCMD Argument is described below: > >>>>> + * bit [3:0] : MSB of IOADR > >>>>> + * bit [5:4] : PLEN(Payload Length) > >>>>> + * 00b: 0 byte > >>>>> + * 01b: 4 bytes > >>>>> + * 10b: 8 bytes > >>>>> + * 11b: 16 bytes > >>>>> + * bit [6] : Reserved > >>>>> + * bit [7] : R/W(Read/Write) > >>>>> + * 0: Control read command > >>>>> + * 1: Control write command > >>>>> + * bit [15:8] : LSB of IOADR > >>>>> + * > >>>>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > >>>>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > >>>>> + */ > >>>>> +#define UHS2_NATIVE_PACKET_POS 7 > >>>>> +#define UHS2_NATIVE_PACKET (1 << UHS2_NATIVE_PACKET_POS) > >>>>> + > >>>>> +#define UHS2_PACKET_TYPE_POS 4 > >>>>> +#define UHS2_PACKET_TYPE_CCMD (0 << UHS2_PACKET_TYPE_POS) > >>>>> +#define UHS2_PACKET_TYPE_DCMD (1 << UHS2_PACKET_TYPE_POS) > >>>>> +#define UHS2_PACKET_TYPE_RES (2 << UHS2_PACKET_TYPE_POS) > >>>>> +#define UHS2_PACKET_TYPE_DATA (3 << UHS2_PACKET_TYPE_POS) > >>>>> +#define UHS2_PACKET_TYPE_MSG (7 << UHS2_PACKET_TYPE_POS) > >>>>> + > >>>>> +#define UHS2_DEST_ID_MASK 0x0F > >>>>> +#define UHS2_DEST_ID 0x1 > >>>>> + > >>>>> +#define UHS2_SRC_ID_POS 12 > >>>>> +#define UHS2_SRC_ID_MASK 0xF000 > >>>>> + > >>>>> +#define UHS2_TRANS_ID_POS 8 > >>>>> +#define UHS2_TRANS_ID_MASK 0x0700 > >>>>> + > >>>>> +/* UHS2 MSG */ > >>>>> +#define UHS2_MSG_CTG_POS 5 > >>>>> +#define UHS2_MSG_CTG_LMSG 0x00 > >>>>> +#define UHS2_MSG_CTG_INT 0x60 > >>>>> +#define UHS2_MSG_CTG_AMSG 0x80 > >>>>> + > >>>>> +#define UHS2_MSG_CTG_FCREQ 0x00 > >>>>> +#define UHS2_MSG_CTG_FCRDY 0x01 > >>>>> +#define UHS2_MSG_CTG_STAT 0x02 > >>>>> + > >>>>> +#define UHS2_MSG_CODE_POS 8 > >>>>> +#define UHS2_MSG_CODE_FC_UNRECOVER_ERR 0x8 > >>>>> +#define UHS2_MSG_CODE_STAT_UNRECOVER_ERR 0x8 > >>>>> +#define UHS2_MSG_CODE_STAT_RECOVER_ERR 0x1 > >>>>> + > >>>>> +/* TRANS Layer definition */ > >>>>> + > >>>>> +/* Native packets*/ > >>>>> +#define UHS2_NATIVE_CMD_RW_POS 7 > >>>>> +#define UHS2_NATIVE_CMD_WRITE (1 << UHS2_NATIVE_CMD_RW_POS) > >>>>> +#define UHS2_NATIVE_CMD_READ (0 << UHS2_NATIVE_CMD_RW_POS) > >>>>> + > >>>>> +#define UHS2_NATIVE_CMD_PLEN_POS 4 > >>>>> +#define UHS2_NATIVE_CMD_PLEN_4B (1 << UHS2_NATIVE_CMD_PLEN_POS) > >>>>> +#define UHS2_NATIVE_CMD_PLEN_8B (2 << UHS2_NATIVE_CMD_PLEN_POS) > >>>>> +#define UHS2_NATIVE_CMD_PLEN_16B (3 << UHS2_NATIVE_CMD_PLEN_POS) > >>>>> + > >>>>> +#define UHS2_NATIVE_CCMD_GET_MIOADR_MASK 0xF00 > >>>>> +#define UHS2_NATIVE_CCMD_MIOADR_MASK 0x0F > >>>>> + > >>>>> +#define UHS2_NATIVE_CCMD_LIOADR_POS 8 > >>>>> +#define UHS2_NATIVE_CCMD_GET_LIOADR_MASK 0x0FF > >>>>> + > >>>>> +#define UHS2_CCMD_DEV_INIT_COMPLETE_FLAG BIT(11) > >>>>> +#define UHS2_DEV_INIT_PAYLOAD_LEN 1 > >>>>> +#define UHS2_DEV_INIT_RESP_LEN 6 > >>>>> +#define UHS2_DEV_ENUM_PAYLOAD_LEN 1 > >>>>> +#define UHS2_DEV_ENUM_RESP_LEN 8 > >>>>> +#define UHS2_CFG_WRITE_PAYLOAD_LEN 2 > >>>>> +#define UHS2_CFG_WRITE_PHY_SET_RESP_LEN 4 > >>>>> +#define UHS2_CFG_WRITE_GENERIC_SET_RESP_LEN 5 > >>>>> +#define UHS2_GO_DORMANT_PAYLOAD_LEN 1 > >>>>> + > >>>>> +/* > >>>>> + * UHS2 Argument: > >>>>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-8, the format of DCMD Argument is described below: > >>>>> + * bit [3:0] : Reserved > >>>>> + * bit [6:3] : TMODE(Transfer Mode) > >>>>> + * bit 3: DAM(Data Access Mode) > >>>>> + * bit 4: TLUM(TLEN Unit Mode) > >>>>> + * bit 5: LM(Length Mode) > >>>>> + * bit 6: DM(Duplex Mode) > >>>>> + * bit [7] : R/W(Read/Write) > >>>>> + * 0: Control read command > >>>>> + * 1: Control write command > >>>>> + * bit [15:8] : Reserved > >>>>> + * > >>>>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > >>>>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > >>>>> + */ > >>>>> +#define UHS2_DCMD_DM_POS 6 > >>>>> +#define UHS2_DCMD_2L_HD_MODE (1 << UHS2_DCMD_DM_POS) > >>>>> +#define UHS2_DCMD_LM_POS 5 > >>>>> +#define UHS2_DCMD_LM_TLEN_EXIST (1 << UHS2_DCMD_LM_POS) > >>>>> +#define UHS2_DCMD_TLUM_POS 4 > >>>>> +#define UHS2_DCMD_TLUM_BYTE_MODE (1 << UHS2_DCMD_TLUM_POS) > >>>>> +#define UHS2_NATIVE_DCMD_DAM_POS 3 > >>>>> +#define UHS2_NATIVE_DCMD_DAM_IO (1 << UHS2_NATIVE_DCMD_DAM_POS) > >>>>> + > >>>>> +/* > >>>>> + * Per UHS2 spec, DCMD payload should be MSB first. There may be > >>>>> + * two types of data be assembled to MSB: > >>>>> + * 1. TLEN: Input block size for single read/write and number of blocks > >>>>> + * for multiple read/write to calculate TLEN as MSB first per spec. > >>>>> + * 2. SD command argument. > >>>>> + */ > >>>>> +static inline __be32 uhs2_dcmd_convert_msb(u32 input) > >>>>> +{ > >>>>> + u32 ret = 0; > >>>>> + > >>>>> + ret = ((input & 0xFF) << 24) | > >>>>> + (((input >> 8) & 0xFF) << 16) | > >>>>> + (((input >> 16) & 0xFF) << 8) | > >>>>> + ((input >> 24) & 0xFF); > >>>>> + return cpu_to_be32(ret); > >>>>> +} > >>>>> + > >>>>> +#define UHS2_RES_NACK_POS 7 > >>>>> +#define UHS2_RES_NACK_MASK (0x1 << UHS2_RES_NACK_POS) > >>>>> + > >>>>> +#define UHS2_RES_ECODE_POS 4 > >>>>> +#define UHS2_RES_ECODE_MASK 0x7 > >>>>> +#define UHS2_RES_ECODE_COND 1 > >>>>> +#define UHS2_RES_ECODE_ARG 2 > >>>>> +#define UHS2_RES_ECODE_GEN 3 > >>>>> + > >>>>> +/* IOADR of device registers */ > >>>>> +#define UHS2_IOADR_GENERIC_CAPS 0x00 > >>>>> +#define UHS2_IOADR_PHY_CAPS 0x02 > >>>>> +#define UHS2_IOADR_LINK_CAPS 0x04 > >>>>> +#define UHS2_IOADR_RSV_CAPS 0x06 > >>>>> +#define UHS2_IOADR_GENERIC_SETTINGS 0x08 > >>>>> +#define UHS2_IOADR_PHY_SETTINGS 0x0A > >>>>> +#define UHS2_IOADR_LINK_SETTINGS 0x0C > >>>>> +#define UHS2_IOADR_PRESET 0x40 > >>>>> + > >>>>> +/* SD application packets */ > >>>>> +#define UHS2_SD_CMD_INDEX_POS 8 > >>>>> + > >>>>> +#define UHS2_SD_CMD_APP_POS 14 > >>>>> +#define UHS2_SD_CMD_APP (1 << UHS2_SD_CMD_APP_POS) > >>>>> + > >>>>> +/* UHS-II Device Registers */ > >>>>> +#define UHS2_DEV_CONFIG_REG 0x000 > >>>>> + > >>>>> +/* General Caps and Settings registers */ > >>>>> +#define UHS2_DEV_CONFIG_GEN_CAPS (UHS2_DEV_CONFIG_REG + 0x000) > >>>>> +#define UHS2_DEV_CONFIG_N_LANES_POS 8 > >>>>> +#define UHS2_DEV_CONFIG_N_LANES_MASK 0x3F > >>>>> +#define UHS2_DEV_CONFIG_2L_HD_FD 0x1 > >>>>> +#define UHS2_DEV_CONFIG_2D1U_FD 0x2 > >>>>> +#define UHS2_DEV_CONFIG_1D2U_FD 0x4 > >>>>> +#define UHS2_DEV_CONFIG_2D2U_FD 0x8 > >>>>> +#define UHS2_DEV_CONFIG_DADR_POS 14 > >>>>> +#define UHS2_DEV_CONFIG_DADR_MASK 0x1 > >>>>> +#define UHS2_DEV_CONFIG_APP_POS 16 > >>>>> +#define UHS2_DEV_CONFIG_APP_MASK 0xFF > >>>>> +#define UHS2_DEV_CONFIG_APP_SD_MEM 0x1 > >>>>> + > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET (UHS2_DEV_CONFIG_REG + 0x008) > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_N_LANES_POS 8 > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_2L_FD_HD 0x0 > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_2D1U_FD 0x2 > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_1D2U_FD 0x3 > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_2D2U_FD 0x4 > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_CFG_COMPLETE BIT(31) > >>>>> + > >>>>> +/* PHY Caps and Settings registers */ > >>>>> +#define UHS2_DEV_CONFIG_PHY_CAPS (UHS2_DEV_CONFIG_REG + 0x002) > >>>>> +#define UHS2_DEV_CONFIG_PHY_MINOR_MASK 0xF > >>>>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_POS 4 > >>>>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_MASK 0x3 > >>>>> +#define UHS2_DEV_CONFIG_CAN_HIBER_POS 15 > >>>>> +#define UHS2_DEV_CONFIG_CAN_HIBER_MASK 0x1 > >>>>> +#define UHS2_DEV_CONFIG_PHY_CAPS1 (UHS2_DEV_CONFIG_REG + 0x003) > >>>>> +#define UHS2_DEV_CONFIG_N_LSS_SYN_MASK 0xF > >>>>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_POS 4 > >>>>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_MASK 0xF > >>>>> + > >>>>> +#define UHS2_DEV_CONFIG_PHY_SET (UHS2_DEV_CONFIG_REG + 0x00A) > >>>>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_POS 6 > >>>>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_A 0x0 > >>>>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_B 0x1 > >>>>> + > >>>>> +/* LINK-TRAN Caps and Settings registers */ > >>>>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS (UHS2_DEV_CONFIG_REG + 0x004) > >>>>> +#define UHS2_DEV_CONFIG_LT_MINOR_MASK 0xF > >>>>> +#define UHS2_DEV_CONFIG_LT_MAJOR_POS 4 > >>>>> +#define UHS2_DEV_CONFIG_LT_MAJOR_MASK 0x3 > >>>>> +#define UHS2_DEV_CONFIG_N_FCU_POS 8 > >>>>> +#define UHS2_DEV_CONFIG_N_FCU_MASK 0xFF > >>>>> +#define UHS2_DEV_CONFIG_DEV_TYPE_POS 16 > >>>>> +#define UHS2_DEV_CONFIG_DEV_TYPE_MASK 0x7 > >>>>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_POS 20 > >>>>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_MASK 0xFFF > >>>>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS1 (UHS2_DEV_CONFIG_REG + 0x005) > >>>>> +#define UHS2_DEV_CONFIG_N_DATA_GAP_MASK 0xFF > >>>>> + > >>>>> +#define UHS2_DEV_CONFIG_LINK_TRAN_SET (UHS2_DEV_CONFIG_REG + 0x00C) > >>>>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_BLK_LEN 0x200 > >>>>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_RETRY_POS 16 > >>>>> + > >>>>> +/* Preset register */ > >>>>> +#define UHS2_DEV_CONFIG_PRESET (UHS2_DEV_CONFIG_REG + 0x040) > >>>>> + > >>>>> +#define UHS2_DEV_INT_REG 0x100 > >>>>> + > >>>>> +#define UHS2_DEV_STATUS_REG 0x180 > >>>>> + > >>>>> +#define UHS2_DEV_CMD_REG 0x200 > >>>>> +#define UHS2_DEV_CMD_FULL_RESET (UHS2_DEV_CMD_REG + 0x000) > >>>>> +#define UHS2_DEV_CMD_GO_DORMANT_STATE (UHS2_DEV_CMD_REG + 0x001) > >>>>> +#define UHS2_DEV_CMD_DORMANT_HIBER BIT(7) > >>>>> +#define UHS2_DEV_CMD_DEVICE_INIT (UHS2_DEV_CMD_REG + 0x002) > >>>>> +#define UHS2_DEV_INIT_COMPLETE_FLAG BIT(11) > >>>>> +#define UHS2_DEV_CMD_ENUMERATE (UHS2_DEV_CMD_REG + 0x003) > >>>>> +#define UHS2_DEV_CMD_TRANS_ABORT (UHS2_DEV_CMD_REG + 0x004) > >>>>> + > >>>>> +#define UHS2_RCLK_MAX 52000000 > >>>>> +#define UHS2_RCLK_MIN 26000000 > >>>>> + > >>>>> +struct sd_uhs2_wait_active_state_data { > >>>>> + struct mmc_host *host; > >>>>> + struct mmc_command *cmd; > >>>>> +}; > >>>>> + > >>>>> +#endif /* LINUX_MMC_UHS2_H */ > >>>> > >>> > >>> Thanks, Victor Shih > >> > > > > Best regards, > > Ben Chuang >
Hi, Adrian On Fri, Nov 18, 2022 at 9:20 AM Ben Chuang <benchuanggli@gmail.com> wrote: > > On Fri, Nov 18, 2022 at 12:05 AM Adrian Hunter <adrian.hunter@intel.com> wrote: > > > > On 17/11/22 08:19, Ben Chuang wrote: > > > Hi, > > > > > > On Wed, Nov 16, 2022 at 9:48 PM Adrian Hunter <adrian.hunter@intel.com> wrote: > > >> > > >> On 16/11/22 13:06, Victor Shih wrote: > > >>> Hi, Adrian > > >>> > > >>> On Wed, Nov 2, 2022 at 1:12 AM Adrian Hunter <adrian.hunter@intel.com> wrote: > > >>>> > > >>>> On 19/10/22 14:06, Victor Shih wrote: > > >>>>> Add UHS-II specific data structures for commands and defines for > > >>>>> registers, as described in Part 1 UHS-II Addendum Version 1.01. > > >>>>> > > >>>>> UHS-II related definitions are listed below: > > >>>>> 1. UHS-II card capability: sd_uhs2_caps{} > > >>>>> 2. UHS-II configuration: sd_uhs2_config{} > > >>>>> 3. UHS-II Command structure: uhs2_command{} > > >>>>> 4. UHS-II register I/O address and register field definitions: sd_uhs2.h > > >>>>> > > >>>>> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> > > >>>>> Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw> > > >>>>> Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> > > >>>>> --- > > >>>>> > > >>>>> Updates in V5: > > >>>>> - Added UHS2 interfaces in mmc_host_ops: host.h > > >>>>> - Added UHS2 VDD2 power supply in mmc_supply: host.h > > >>>>> - Added UHS2-specific OCR and UHS2 VDD2 max current in mmc_host: host.h > > >>>>> - Added definition of UHS2 VDD2 1.65v-1.95v in mmc_host: host.h > > >>>>> - Added flags/MMC_UHS2_SUPPORT/MMC_UHS2_2L_HD in mmc_host: host.h > > >>>>> --- > > >>>>> include/linux/mmc/card.h | 42 +++++- > > >>>>> include/linux/mmc/core.h | 13 ++ > > >>>>> include/linux/mmc/host.h | 70 +++++++++- > > >>>>> include/linux/mmc/sd_uhs2.h | 263 ++++++++++++++++++++++++++++++++++++ > > >>>>> 4 files changed, 386 insertions(+), 2 deletions(-) > > >>>>> create mode 100644 include/linux/mmc/sd_uhs2.h > > >>>>> > > >>>>> diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h > > >>>>> index 4a42f31b7bb0..d638a2c689cf 100644 > > >>>>> --- a/include/linux/mmc/card.h > > >>>>> +++ b/include/linux/mmc/card.h > > >>>>> @@ -190,6 +190,13 @@ struct sd_switch_caps { > > >>>>> #define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) > > >>>>> #define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) > > >>>>> #define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) > > >>>>> + unsigned int sd4_curr_limit; > > >>>>> +#define SD4_SET_POWER_LIMIT_0_72W 0 > > >>>>> +#define SD4_SET_POWER_LIMIT_1_44W 1 > > >>>>> +#define SD4_SET_POWER_LIMIT_2_16W 2 > > >>>>> +#define SD4_SET_POWER_LIMIT_2_88W 3 > > >>>>> +#define SD4_SET_POWER_LIMIT_1_80W 4 > > >>>>> +#define SD4_SET_POWER_NO_CHANGE (-1) > > >>>>> }; > > >>>>> > > >>>>> struct sd_ext_reg { > > >>>>> @@ -213,7 +220,35 @@ struct sd_ext_reg { > > >>>>> > > >>>>> struct sd_uhs2_config { > > >>>>> u32 node_id; > > >>>>> - /* TODO: Extend with more register configs. */ > > >>>>> + > > >>>>> + u32 dap; > > >>>>> + u32 gap; > > >>>>> + u32 n_fcu; > > >>>>> + u32 maxblk_len; > > >>>>> + u8 n_lanes; > > >>>>> + u8 dadr_len; > > >>>>> + u8 app_type; > > >>>>> + u8 phy_minor_rev; > > >>>>> + u8 phy_major_rev; > > >>>>> + u8 can_hibernate; > > >>>>> + u8 n_lss_sync; > > >>>>> + u8 n_lss_dir; > > >>>>> + u8 link_minor_rev; > > >>>>> + u8 link_major_rev; > > >>>>> + u8 dev_type; > > >>>>> + u8 n_data_gap; > > >>>>> + > > >>>>> + u32 n_fcu_set; > > >>>>> + u32 maxblk_len_set; > > >>>>> + u8 n_lanes_set; > > >>>>> + u8 speed_range_set; > > >>>>> + u8 n_lss_sync_set; > > >>>>> + u8 n_lss_dir_set; > > >>>>> + u8 n_data_gap_set; > > >>>>> + u8 pwrctrl_mode_set; > > >>>>> + u8 max_retry_set; > > >>>>> + > > >>>>> + u8 cfg_complete; > > >>>>> }; > > >>>>> > > >>>>> struct sdio_cccr { > > >>>>> @@ -323,6 +358,9 @@ struct mmc_card { > > >>>>> struct sd_ext_reg ext_perf; /* SD extension reg for PERF */ > > >>>>> > > >>>>> struct sd_uhs2_config uhs2_config; /* SD UHS-II config */ > > >>>>> + u8 uhs2_state; /* SD UHS-II states */ > > >>>>> +#define MMC_UHS2_INITIALIZED BIT(1) > > >>>>> +#define MMC_UHS2_SPEED_B BIT(2) > > >>>>> > > >>>>> unsigned int sdio_funcs; /* number of SDIO functions */ > > >>>>> atomic_t sdio_funcs_probed; /* number of probed SDIO funcs */ > > >>>>> @@ -364,4 +402,6 @@ bool mmc_card_is_blockaddr(struct mmc_card *card); > > >>>>> #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) > > >>>>> #define mmc_card_sd_combo(c) ((c)->type == MMC_TYPE_SD_COMBO) > > >>>>> > > >>>>> +#define mmc_card_can_poweroff_notify(c) ((c)->ext_power.feature_support & SD_EXT_POWER_OFF_NOTIFY) > > >>>>> + > > >>>>> #endif /* LINUX_MMC_CARD_H */ > > >>>>> diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h > > >>>>> index 6efec0b9820c..2a0581d87706 100644 > > >>>>> --- a/include/linux/mmc/core.h > > >>>>> +++ b/include/linux/mmc/core.h > > >>>>> @@ -23,6 +23,14 @@ enum mmc_blk_status { > > >>>>> MMC_BLK_NEW_REQUEST, > > >>>>> }; > > >>>>> > > >>>>> +struct uhs2_command { > > >>>>> + u16 header; > > >>>>> + u16 arg; > > >>>>> + __be32 *payload; > > >>>>> + u32 payload_len; > > >>>>> + u32 packet_len; > > >>>>> +}; > > >>>>> + > > >>>>> struct mmc_command { > > >>>>> u32 opcode; > > >>>>> u32 arg; > > >>>>> @@ -109,6 +117,11 @@ struct mmc_command { > > >>>>> unsigned int busy_timeout; /* busy detect timeout in ms */ > > >>>>> struct mmc_data *data; /* data segment associated with cmd */ > > >>>>> struct mmc_request *mrq; /* associated request */ > > >>>>> + > > >>>>> + struct uhs2_command *uhs2_cmd; /* UHS2 command */ > > >>>>> + u8 *uhs2_resp; /* UHS2 native cmd resp */ > > >>>>> + u8 uhs2_resp_len; /* UHS2 native cmd resp len */ > > >>>>> + u8 uhs2_tmode0_flag; /* UHS2 transfer mode flag */ > > >>>>> }; > > >>>>> > > >>>>> struct mmc_data { > > >>>>> diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h > > >>>>> index 895bcf7f80b7..249a9414ad10 100644 > > >>>>> --- a/include/linux/mmc/host.h > > >>>>> +++ b/include/linux/mmc/host.h > > >>>>> @@ -16,6 +16,7 @@ > > >>>>> #include <linux/mmc/pm.h> > > >>>>> #include <linux/dma-direction.h> > > >>>>> #include <linux/blk-crypto-profile.h> > > >>>>> +#include <linux/mmc/sd_uhs2.h> > > >>>>> > > >>>>> struct mmc_ios { > > >>>>> unsigned int clock; /* clock rate */ > > >>>>> @@ -96,7 +97,48 @@ struct mmc_clk_phase_map { > > >>>>> }; > > >>>>> > > >>>>> struct sd_uhs2_caps { > > >>>>> - /* TODO: Add UHS-II capabilities for the host. */ > > >>>>> + u32 dap; > > >>>>> + u32 gap; > > >>>>> + u32 group_desc; > > >>>>> + u32 maxblk_len; > > >>>>> + u32 n_fcu; > > >>>>> + u8 n_lanes; > > >>>>> + u8 addr64; > > >>>>> + u8 card_type; > > >>>>> + u8 phy_rev; > > >>>>> + u8 speed_range; > > >>>>> + u8 can_hibernate; > > >>>>> + u8 n_lss_sync; > > >>>>> + u8 n_lss_dir; > > >>>>> + u8 link_rev; > > >>>>> + u8 host_type; > > >>>>> + u8 n_data_gap; > > >>>>> + > > >>>>> + u32 maxblk_len_set; > > >>>>> + u32 n_fcu_set; > > >>>>> + u8 n_lanes_set; > > >>>>> + u8 n_lss_sync_set; > > >>>>> + u8 n_lss_dir_set; > > >>>>> + u8 n_data_gap_set; > > >>>>> + u8 max_retry_set; > > >>>>> +}; > > >>>>> + > > >>>>> +struct sd_uhs2_ios { > > >>>>> + bool is_2L_HD_mode; > > >>>>> + bool is_APP_CMD; > > >>>>> + unsigned int power_delay_ms; /* waiting for stable power */ > > >>>>> +}; > > >>>>> + > > >>>>> +enum sd_uhs2_operation { > > >>>>> + UHS2_PHY_INIT = 0, > > >>>>> + UHS2_SET_CONFIG, > > >>>>> + UHS2_ENABLE_INT, > > >>>>> + UHS2_DISABLE_INT, > > >>>>> + UHS2_ENABLE_CLK, > > >>>>> + UHS2_DISABLE_CLK, > > >>>>> + UHS2_CHECK_DORMANT, > > >>>>> + UHS2_SET_SPEED_B, > > >>>>> + UHS2_POST_ATTACH_SD, > > >>>>> }; > > >>>>> > > >>>>> struct mmc_host; > > >>>>> @@ -231,6 +273,20 @@ struct mmc_host_ops { > > >>>>> > > >>>>> /* Initialize an SD express card, mandatory for MMC_CAP2_SD_EXP. */ > > >>>>> int (*init_sd_express)(struct mmc_host *host, struct mmc_ios *ios); > > >>>>> + > > >>>>> + /* UHS2 interfaces */ > > >>>>> + int (*uhs2_detect_init)(struct mmc_host *host); > > >>>> > > >>>> Never called? > > >>> > > >>> Yes, I will delete it. > > >>> I will update it in the patch#5 of the new [PATCH V6]. > > >>>> > > >>>>> + int (*uhs2_set_reg)(struct mmc_host *host, enum sd_uhs2_operation act); > > >>>> > > >>>> Never called? > > >>> > > >>> Yes, I will delete it. > > >>> I will update it in the patch#5 of the new [PATCH V6]. > > >>>> > > >>>>> + int (*uhs2_disable_clk)(struct mmc_host *host); > > >>>> > > >>>> Never called? > > >>> > > >>> Yes, I will delete it. > > >>> I will update it in the patch#5 of the new [PATCH V6]. > > >>>> > > >>>>> + int (*uhs2_enable_clk)(struct mmc_host *host); > > >>>> > > >>>> Never called? > > >>> > > >>> Yes, I will delete it. > > >>> I will update it in the patch#5 of the new [PATCH V6]. > > >>>> > > >>>>> + > > >>>>> + /* > > >>>>> + * The uhs2_control callback is used to execute SD UHS-II specific > > >>>>> + * operations. It's mandatory to implement for hosts that supports the > > >>>>> + * SD UHS-II interface (MMC_CAP2_SD_UHS2). Expected return values are a > > >>>>> + * negative errno in case of a failure or zero for success. > > >>>>> + */ > > >>>>> + int (*uhs2_control)(struct mmc_host *host, enum sd_uhs2_operation op); > > >>>>> }; > > >>>>> > > >>>>> struct mmc_cqe_ops { > > >>>>> @@ -323,6 +379,7 @@ struct mmc_pwrseq; > > >>>>> > > >>>>> struct mmc_supply { > > >>>>> struct regulator *vmmc; /* Card power supply */ > > >>>>> + struct regulator *vmmc2; /* UHS2 VDD2 power supply */ > > >>>>> struct regulator *vqmmc; /* Optional Vccq supply */ > > >>>>> struct regulator *vqmmc2; /* Optional supply for phy */ > > >>>>> }; > > >>>>> @@ -344,10 +401,12 @@ struct mmc_host { > > >>>>> u32 ocr_avail_sdio; /* SDIO-specific OCR */ > > >>>>> u32 ocr_avail_sd; /* SD-specific OCR */ > > >>>>> u32 ocr_avail_mmc; /* MMC-specific OCR */ > > >>>>> + u32 ocr_avail_uhs2; /* UHS2-specific OCR */ > > >>>>> struct wakeup_source *ws; /* Enable consume of uevents */ > > >>>>> u32 max_current_330; > > >>>>> u32 max_current_300; > > >>>>> u32 max_current_180; > > >>>>> + u32 max_current_180_vdd2; /* UHS2 vdd2 max curt. */ > > >>>>> > > >>>>> #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ > > >>>>> #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ > > >>>>> @@ -366,6 +425,7 @@ struct mmc_host { > > >>>>> #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ > > >>>>> #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ > > >>>>> #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ > > >>>>> +#define MMC_VDD2_165_195 0x00000080 /* UHS2 VDD2 1.65 ~ 1.95 */ > > >>>>> > > >>>>> u32 caps; /* Host capabilities */ > > >>>>> > > >>>>> @@ -443,7 +503,12 @@ struct mmc_host { > > >>>>> #endif > > >>>>> #define MMC_CAP2_ALT_GPT_TEGRA (1 << 28) /* Host with eMMC that has GPT entry at a non-standard location */ > > >>>>> > > >>>>> + int flags; > > >>>>> +#define MMC_UHS2_SUPPORT (1 << 0) > > >>>> > > >>>> MMC_UHS2_SUPPORT is getting mixed up with MMC_UHS2_INITIALIZED. > > >>>> Both have the same value, but MMC_UHS2_SUPPORT is for > > >>>> host->flags and MMC_UHS2_INITIALIZED is for card->uhs2_state > > >>>> > > >>>> Please use the correct flag with the correct variable. > > >>>> > > >>> > > >>> The value of MMC_UHS2_SUPPORT is (1<<0) and the value of > > >>> MMC_UHS2_INITIALIZED is BIT(1). > > >>> Both have different values, therefore I'm not sure what you mean. > > >>> May you give me some more advice? Thanks. > > >> > > >> I guess I got confused about the values, however it is not OK to > > >> use MMC_UHS2_INITIALIZED for both mmc->flags and card->uhs2_state. > > >> Please make a separate define with a different name for mmc->flags > > >> version of MMC_UHS2_INITIALIZED. > > > > > > MMC_UHS2_INITIALIZED here is used to judge that the UHS-II I/F has been > > > initialized and can run in SD-TRAN. In this state, some SD commands > > > require a distinction. For example, ACMD (CMD55) should be set by the APP > > > field in UHS-II packet. > > > > OK, but SD commands cannot be sent in UHS-II mode without SD-TRAN > > so is the distinction needed? > > No need, if these SD commands are sent in SD_TRAN mode. > I will update it in the the new [PATCH V6]. > > > > > > > >> > > >> Also, I am confused about the purpose of mmc->flags and > > >> card->uhs2_state. > > > > > > It looks like the mmc->flags and card->uhs2_state have the same purpose. > > > I think it is having trouble with card == NULL in mmc_app_cmd(*host, *card) > > > in patch [V5, 06/26] so just add one more mmc->flags. > > > Can wait for confirmation from Victor. > > > > > >> > > >> A host is UHS-II capable as represented by MMC_CAP2_SD_UHS2. > > >> To initialize and use a UHS-II card in UHS-II mode, the host > > >> must be in UHS-II mode. > > >> To initialize and use a UHS-II card in SD mode, the host > > >> must be in SD mode. > > >> So the state of the card and host is always the same: > > >> either UHS-II or not. Note, that is a consequence of the > > >> hardware I/F. Whether SD I/F or UHS-II I/F is used is > > >> decided before sending any UHS-II commands. SD I/F is > > >> disabled during UHS-II PHY initialization, whereas > > >> UHS-II I/F is disabled before execution of ACMD41 is > > >> completed. > > >> > > >> So it seems like there would only be a need for one flag > > >> to indicate UHS-II mode? > > >> > > >>> > > >>>>> +#define MMC_UHS2_2L_HD (1 << 2) > > >>>> > > >>>> MMC_UHS2_2L_HD does not seem to be used. Is it needed? > > >>> > > >>> I confirmed this, I don't use it, I will delete it. > > >>> I will update it in the patch#5 of the new [PATCH V6]. > > >>>> > > >>>>> + > > >>>>> struct sd_uhs2_caps uhs2_caps; /* Host UHS-II capabilities */ > > >>>>> + struct sd_uhs2_ios uhs2_ios; /* Host UHS-II capabilities */ > > >>>>> > > >>>>> int fixed_drv_type; /* fixed driver type for non-removable media */ > > >>>>> > > >>>>> @@ -695,4 +760,7 @@ int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); > > >>>>> int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); > > >>>>> int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); > > >>>>> > > >>>>> +#define mmc_uhs2_2L_HD_mode(h) ((h)->uhs2_ios.is_2L_HD_mode) > > >>>>> +#define mmc_uhs2_APP_cmd(h) ((h)->uhs2_ios.is_APP_CMD) > > >>>>> + > > >>>>> #endif /* LINUX_MMC_HOST_H */ > > >>>>> diff --git a/include/linux/mmc/sd_uhs2.h b/include/linux/mmc/sd_uhs2.h > > >>>>> new file mode 100644 > > >>>>> index 000000000000..8fcf702cf4a5 > > >>>>> --- /dev/null > > >>>>> +++ b/include/linux/mmc/sd_uhs2.h > > >>>>> @@ -0,0 +1,263 @@ > > >>>>> +/* SPDX-License-Identifier: GPL-2.0-or-later */ > > >>>>> +/* > > >>>>> + * Header file for UHS-II packets, Host Controller registers and I/O > > >>>>> + * accessors. > > >>>>> + * > > >>>>> + * Copyright (C) 2014 Intel Corp, All Rights Reserved. > > >>>>> + */ > > >>>>> +#ifndef LINUX_MMC_UHS2_H > > >>>>> +#define LINUX_MMC_UHS2_H > > >>>>> + > > >>>>> +/* LINK Layer definition */ > > >>>>> +/* > > >>>>> + * UHS2 Header: > > >>>>> + * Refer to UHS-II Addendum Version 1.02 Figure 5-2, the format of CCMD Header is described below: > > >>>>> + * bit [3:0] : DID(Destination ID = Node ID of UHS2 card) > > >>>>> + * bit [6:4] : TYP(Packet Type) > > >>>>> + * 000b: CCMD(Control command packet) > > >>>>> + * 001b: DCMD(Data command packet) > > >>>>> + * 010b: RES(Response packet) > > >>>>> + * 011b: DATA(Data payload packet) > > >>>>> + * 111b: MSG(Message packet) > > >>>>> + * Others: Reserved > > >>>>> + * bit [7] : NP(Native Packet) > > >>>>> + * bit [10:8] : TID(Transaction ID) > > >>>>> + * bit [11] : Reserved > > >>>>> + * bit [15:12]: SID(Source ID 0: Node ID of Host) > > >>>>> + * > > >>>>> + * Broadcast CCMD issued by Host is represented as DID=SID=0. > > >>>>> + */ > > >>>>> +/* > > >>>>> + * UHS2 Argument: > > >>>>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-5, the format of CCMD Argument is described below: > > >>>>> + * bit [3:0] : MSB of IOADR > > >>>>> + * bit [5:4] : PLEN(Payload Length) > > >>>>> + * 00b: 0 byte > > >>>>> + * 01b: 4 bytes > > >>>>> + * 10b: 8 bytes > > >>>>> + * 11b: 16 bytes > > >>>>> + * bit [6] : Reserved > > >>>>> + * bit [7] : R/W(Read/Write) > > >>>>> + * 0: Control read command > > >>>>> + * 1: Control write command > > >>>>> + * bit [15:8] : LSB of IOADR > > >>>>> + * > > >>>>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > > >>>>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > > >>>>> + */ > > >>>>> +#define UHS2_NATIVE_PACKET_POS 7 > > >>>>> +#define UHS2_NATIVE_PACKET (1 << UHS2_NATIVE_PACKET_POS) > > >>>>> + > > >>>>> +#define UHS2_PACKET_TYPE_POS 4 > > >>>>> +#define UHS2_PACKET_TYPE_CCMD (0 << UHS2_PACKET_TYPE_POS) > > >>>>> +#define UHS2_PACKET_TYPE_DCMD (1 << UHS2_PACKET_TYPE_POS) > > >>>>> +#define UHS2_PACKET_TYPE_RES (2 << UHS2_PACKET_TYPE_POS) > > >>>>> +#define UHS2_PACKET_TYPE_DATA (3 << UHS2_PACKET_TYPE_POS) > > >>>>> +#define UHS2_PACKET_TYPE_MSG (7 << UHS2_PACKET_TYPE_POS) > > >>>>> + > > >>>>> +#define UHS2_DEST_ID_MASK 0x0F > > >>>>> +#define UHS2_DEST_ID 0x1 > > >>>>> + > > >>>>> +#define UHS2_SRC_ID_POS 12 > > >>>>> +#define UHS2_SRC_ID_MASK 0xF000 > > >>>>> + > > >>>>> +#define UHS2_TRANS_ID_POS 8 > > >>>>> +#define UHS2_TRANS_ID_MASK 0x0700 > > >>>>> + > > >>>>> +/* UHS2 MSG */ > > >>>>> +#define UHS2_MSG_CTG_POS 5 > > >>>>> +#define UHS2_MSG_CTG_LMSG 0x00 > > >>>>> +#define UHS2_MSG_CTG_INT 0x60 > > >>>>> +#define UHS2_MSG_CTG_AMSG 0x80 > > >>>>> + > > >>>>> +#define UHS2_MSG_CTG_FCREQ 0x00 > > >>>>> +#define UHS2_MSG_CTG_FCRDY 0x01 > > >>>>> +#define UHS2_MSG_CTG_STAT 0x02 > > >>>>> + > > >>>>> +#define UHS2_MSG_CODE_POS 8 > > >>>>> +#define UHS2_MSG_CODE_FC_UNRECOVER_ERR 0x8 > > >>>>> +#define UHS2_MSG_CODE_STAT_UNRECOVER_ERR 0x8 > > >>>>> +#define UHS2_MSG_CODE_STAT_RECOVER_ERR 0x1 > > >>>>> + > > >>>>> +/* TRANS Layer definition */ > > >>>>> + > > >>>>> +/* Native packets*/ > > >>>>> +#define UHS2_NATIVE_CMD_RW_POS 7 > > >>>>> +#define UHS2_NATIVE_CMD_WRITE (1 << UHS2_NATIVE_CMD_RW_POS) > > >>>>> +#define UHS2_NATIVE_CMD_READ (0 << UHS2_NATIVE_CMD_RW_POS) > > >>>>> + > > >>>>> +#define UHS2_NATIVE_CMD_PLEN_POS 4 > > >>>>> +#define UHS2_NATIVE_CMD_PLEN_4B (1 << UHS2_NATIVE_CMD_PLEN_POS) > > >>>>> +#define UHS2_NATIVE_CMD_PLEN_8B (2 << UHS2_NATIVE_CMD_PLEN_POS) > > >>>>> +#define UHS2_NATIVE_CMD_PLEN_16B (3 << UHS2_NATIVE_CMD_PLEN_POS) > > >>>>> + > > >>>>> +#define UHS2_NATIVE_CCMD_GET_MIOADR_MASK 0xF00 > > >>>>> +#define UHS2_NATIVE_CCMD_MIOADR_MASK 0x0F > > >>>>> + > > >>>>> +#define UHS2_NATIVE_CCMD_LIOADR_POS 8 > > >>>>> +#define UHS2_NATIVE_CCMD_GET_LIOADR_MASK 0x0FF > > >>>>> + > > >>>>> +#define UHS2_CCMD_DEV_INIT_COMPLETE_FLAG BIT(11) > > >>>>> +#define UHS2_DEV_INIT_PAYLOAD_LEN 1 > > >>>>> +#define UHS2_DEV_INIT_RESP_LEN 6 > > >>>>> +#define UHS2_DEV_ENUM_PAYLOAD_LEN 1 > > >>>>> +#define UHS2_DEV_ENUM_RESP_LEN 8 > > >>>>> +#define UHS2_CFG_WRITE_PAYLOAD_LEN 2 > > >>>>> +#define UHS2_CFG_WRITE_PHY_SET_RESP_LEN 4 > > >>>>> +#define UHS2_CFG_WRITE_GENERIC_SET_RESP_LEN 5 > > >>>>> +#define UHS2_GO_DORMANT_PAYLOAD_LEN 1 > > >>>>> + > > >>>>> +/* > > >>>>> + * UHS2 Argument: > > >>>>> + * Refer to UHS-II Addendum Version 1.02 Figure 6-8, the format of DCMD Argument is described below: > > >>>>> + * bit [3:0] : Reserved > > >>>>> + * bit [6:3] : TMODE(Transfer Mode) > > >>>>> + * bit 3: DAM(Data Access Mode) > > >>>>> + * bit 4: TLUM(TLEN Unit Mode) > > >>>>> + * bit 5: LM(Length Mode) > > >>>>> + * bit 6: DM(Duplex Mode) > > >>>>> + * bit [7] : R/W(Read/Write) > > >>>>> + * 0: Control read command > > >>>>> + * 1: Control write command > > >>>>> + * bit [15:8] : Reserved > > >>>>> + * > > >>>>> + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. > > >>>>> + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. > > >>>>> + */ > > >>>>> +#define UHS2_DCMD_DM_POS 6 > > >>>>> +#define UHS2_DCMD_2L_HD_MODE (1 << UHS2_DCMD_DM_POS) > > >>>>> +#define UHS2_DCMD_LM_POS 5 > > >>>>> +#define UHS2_DCMD_LM_TLEN_EXIST (1 << UHS2_DCMD_LM_POS) > > >>>>> +#define UHS2_DCMD_TLUM_POS 4 > > >>>>> +#define UHS2_DCMD_TLUM_BYTE_MODE (1 << UHS2_DCMD_TLUM_POS) > > >>>>> +#define UHS2_NATIVE_DCMD_DAM_POS 3 > > >>>>> +#define UHS2_NATIVE_DCMD_DAM_IO (1 << UHS2_NATIVE_DCMD_DAM_POS) > > >>>>> + > > >>>>> +/* > > >>>>> + * Per UHS2 spec, DCMD payload should be MSB first. There may be > > >>>>> + * two types of data be assembled to MSB: > > >>>>> + * 1. TLEN: Input block size for single read/write and number of blocks > > >>>>> + * for multiple read/write to calculate TLEN as MSB first per spec. > > >>>>> + * 2. SD command argument. > > >>>>> + */ > > >>>>> +static inline __be32 uhs2_dcmd_convert_msb(u32 input) > > >>>>> +{ > > >>>>> + u32 ret = 0; > > >>>>> + > > >>>>> + ret = ((input & 0xFF) << 24) | > > >>>>> + (((input >> 8) & 0xFF) << 16) | > > >>>>> + (((input >> 16) & 0xFF) << 8) | > > >>>>> + ((input >> 24) & 0xFF); > > >>>>> + return cpu_to_be32(ret); > > >>>>> +} > > >>>>> + > > >>>>> +#define UHS2_RES_NACK_POS 7 > > >>>>> +#define UHS2_RES_NACK_MASK (0x1 << UHS2_RES_NACK_POS) > > >>>>> + > > >>>>> +#define UHS2_RES_ECODE_POS 4 > > >>>>> +#define UHS2_RES_ECODE_MASK 0x7 > > >>>>> +#define UHS2_RES_ECODE_COND 1 > > >>>>> +#define UHS2_RES_ECODE_ARG 2 > > >>>>> +#define UHS2_RES_ECODE_GEN 3 > > >>>>> + > > >>>>> +/* IOADR of device registers */ > > >>>>> +#define UHS2_IOADR_GENERIC_CAPS 0x00 > > >>>>> +#define UHS2_IOADR_PHY_CAPS 0x02 > > >>>>> +#define UHS2_IOADR_LINK_CAPS 0x04 > > >>>>> +#define UHS2_IOADR_RSV_CAPS 0x06 > > >>>>> +#define UHS2_IOADR_GENERIC_SETTINGS 0x08 > > >>>>> +#define UHS2_IOADR_PHY_SETTINGS 0x0A > > >>>>> +#define UHS2_IOADR_LINK_SETTINGS 0x0C > > >>>>> +#define UHS2_IOADR_PRESET 0x40 > > >>>>> + > > >>>>> +/* SD application packets */ > > >>>>> +#define UHS2_SD_CMD_INDEX_POS 8 > > >>>>> + > > >>>>> +#define UHS2_SD_CMD_APP_POS 14 > > >>>>> +#define UHS2_SD_CMD_APP (1 << UHS2_SD_CMD_APP_POS) > > >>>>> + > > >>>>> +/* UHS-II Device Registers */ > > >>>>> +#define UHS2_DEV_CONFIG_REG 0x000 > > >>>>> + > > >>>>> +/* General Caps and Settings registers */ > > >>>>> +#define UHS2_DEV_CONFIG_GEN_CAPS (UHS2_DEV_CONFIG_REG + 0x000) > > >>>>> +#define UHS2_DEV_CONFIG_N_LANES_POS 8 > > >>>>> +#define UHS2_DEV_CONFIG_N_LANES_MASK 0x3F > > >>>>> +#define UHS2_DEV_CONFIG_2L_HD_FD 0x1 > > >>>>> +#define UHS2_DEV_CONFIG_2D1U_FD 0x2 > > >>>>> +#define UHS2_DEV_CONFIG_1D2U_FD 0x4 > > >>>>> +#define UHS2_DEV_CONFIG_2D2U_FD 0x8 > > >>>>> +#define UHS2_DEV_CONFIG_DADR_POS 14 > > >>>>> +#define UHS2_DEV_CONFIG_DADR_MASK 0x1 > > >>>>> +#define UHS2_DEV_CONFIG_APP_POS 16 > > >>>>> +#define UHS2_DEV_CONFIG_APP_MASK 0xFF > > >>>>> +#define UHS2_DEV_CONFIG_APP_SD_MEM 0x1 > > >>>>> + > > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET (UHS2_DEV_CONFIG_REG + 0x008) > > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_N_LANES_POS 8 > > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_2L_FD_HD 0x0 > > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_2D1U_FD 0x2 > > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_1D2U_FD 0x3 > > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_2D2U_FD 0x4 > > >>>>> +#define UHS2_DEV_CONFIG_GEN_SET_CFG_COMPLETE BIT(31) > > >>>>> + > > >>>>> +/* PHY Caps and Settings registers */ > > >>>>> +#define UHS2_DEV_CONFIG_PHY_CAPS (UHS2_DEV_CONFIG_REG + 0x002) > > >>>>> +#define UHS2_DEV_CONFIG_PHY_MINOR_MASK 0xF > > >>>>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_POS 4 > > >>>>> +#define UHS2_DEV_CONFIG_PHY_MAJOR_MASK 0x3 > > >>>>> +#define UHS2_DEV_CONFIG_CAN_HIBER_POS 15 > > >>>>> +#define UHS2_DEV_CONFIG_CAN_HIBER_MASK 0x1 > > >>>>> +#define UHS2_DEV_CONFIG_PHY_CAPS1 (UHS2_DEV_CONFIG_REG + 0x003) > > >>>>> +#define UHS2_DEV_CONFIG_N_LSS_SYN_MASK 0xF > > >>>>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_POS 4 > > >>>>> +#define UHS2_DEV_CONFIG_N_LSS_DIR_MASK 0xF > > >>>>> + > > >>>>> +#define UHS2_DEV_CONFIG_PHY_SET (UHS2_DEV_CONFIG_REG + 0x00A) > > >>>>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_POS 6 > > >>>>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_A 0x0 > > >>>>> +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_B 0x1 > > >>>>> + > > >>>>> +/* LINK-TRAN Caps and Settings registers */ > > >>>>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS (UHS2_DEV_CONFIG_REG + 0x004) > > >>>>> +#define UHS2_DEV_CONFIG_LT_MINOR_MASK 0xF > > >>>>> +#define UHS2_DEV_CONFIG_LT_MAJOR_POS 4 > > >>>>> +#define UHS2_DEV_CONFIG_LT_MAJOR_MASK 0x3 > > >>>>> +#define UHS2_DEV_CONFIG_N_FCU_POS 8 > > >>>>> +#define UHS2_DEV_CONFIG_N_FCU_MASK 0xFF > > >>>>> +#define UHS2_DEV_CONFIG_DEV_TYPE_POS 16 > > >>>>> +#define UHS2_DEV_CONFIG_DEV_TYPE_MASK 0x7 > > >>>>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_POS 20 > > >>>>> +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_MASK 0xFFF > > >>>>> +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS1 (UHS2_DEV_CONFIG_REG + 0x005) > > >>>>> +#define UHS2_DEV_CONFIG_N_DATA_GAP_MASK 0xFF > > >>>>> + > > >>>>> +#define UHS2_DEV_CONFIG_LINK_TRAN_SET (UHS2_DEV_CONFIG_REG + 0x00C) > > >>>>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_BLK_LEN 0x200 > > >>>>> +#define UHS2_DEV_CONFIG_LT_SET_MAX_RETRY_POS 16 > > >>>>> + > > >>>>> +/* Preset register */ > > >>>>> +#define UHS2_DEV_CONFIG_PRESET (UHS2_DEV_CONFIG_REG + 0x040) > > >>>>> + > > >>>>> +#define UHS2_DEV_INT_REG 0x100 > > >>>>> + > > >>>>> +#define UHS2_DEV_STATUS_REG 0x180 > > >>>>> + > > >>>>> +#define UHS2_DEV_CMD_REG 0x200 > > >>>>> +#define UHS2_DEV_CMD_FULL_RESET (UHS2_DEV_CMD_REG + 0x000) > > >>>>> +#define UHS2_DEV_CMD_GO_DORMANT_STATE (UHS2_DEV_CMD_REG + 0x001) > > >>>>> +#define UHS2_DEV_CMD_DORMANT_HIBER BIT(7) > > >>>>> +#define UHS2_DEV_CMD_DEVICE_INIT (UHS2_DEV_CMD_REG + 0x002) > > >>>>> +#define UHS2_DEV_INIT_COMPLETE_FLAG BIT(11) > > >>>>> +#define UHS2_DEV_CMD_ENUMERATE (UHS2_DEV_CMD_REG + 0x003) > > >>>>> +#define UHS2_DEV_CMD_TRANS_ABORT (UHS2_DEV_CMD_REG + 0x004) > > >>>>> + > > >>>>> +#define UHS2_RCLK_MAX 52000000 > > >>>>> +#define UHS2_RCLK_MIN 26000000 > > >>>>> + > > >>>>> +struct sd_uhs2_wait_active_state_data { > > >>>>> + struct mmc_host *host; > > >>>>> + struct mmc_command *cmd; > > >>>>> +}; > > >>>>> + > > >>>>> +#endif /* LINUX_MMC_UHS2_H */ > > >>>> > > >>> > > >>> Thanks, Victor Shih > > >> > > > > > > Best regards, > > > Ben Chuang > > Thanks, Victor Shih
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 4a42f31b7bb0..d638a2c689cf 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -190,6 +190,13 @@ struct sd_switch_caps { #define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) #define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) #define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) + unsigned int sd4_curr_limit; +#define SD4_SET_POWER_LIMIT_0_72W 0 +#define SD4_SET_POWER_LIMIT_1_44W 1 +#define SD4_SET_POWER_LIMIT_2_16W 2 +#define SD4_SET_POWER_LIMIT_2_88W 3 +#define SD4_SET_POWER_LIMIT_1_80W 4 +#define SD4_SET_POWER_NO_CHANGE (-1) }; struct sd_ext_reg { @@ -213,7 +220,35 @@ struct sd_ext_reg { struct sd_uhs2_config { u32 node_id; - /* TODO: Extend with more register configs. */ + + u32 dap; + u32 gap; + u32 n_fcu; + u32 maxblk_len; + u8 n_lanes; + u8 dadr_len; + u8 app_type; + u8 phy_minor_rev; + u8 phy_major_rev; + u8 can_hibernate; + u8 n_lss_sync; + u8 n_lss_dir; + u8 link_minor_rev; + u8 link_major_rev; + u8 dev_type; + u8 n_data_gap; + + u32 n_fcu_set; + u32 maxblk_len_set; + u8 n_lanes_set; + u8 speed_range_set; + u8 n_lss_sync_set; + u8 n_lss_dir_set; + u8 n_data_gap_set; + u8 pwrctrl_mode_set; + u8 max_retry_set; + + u8 cfg_complete; }; struct sdio_cccr { @@ -323,6 +358,9 @@ struct mmc_card { struct sd_ext_reg ext_perf; /* SD extension reg for PERF */ struct sd_uhs2_config uhs2_config; /* SD UHS-II config */ + u8 uhs2_state; /* SD UHS-II states */ +#define MMC_UHS2_INITIALIZED BIT(1) +#define MMC_UHS2_SPEED_B BIT(2) unsigned int sdio_funcs; /* number of SDIO functions */ atomic_t sdio_funcs_probed; /* number of probed SDIO funcs */ @@ -364,4 +402,6 @@ bool mmc_card_is_blockaddr(struct mmc_card *card); #define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) #define mmc_card_sd_combo(c) ((c)->type == MMC_TYPE_SD_COMBO) +#define mmc_card_can_poweroff_notify(c) ((c)->ext_power.feature_support & SD_EXT_POWER_OFF_NOTIFY) + #endif /* LINUX_MMC_CARD_H */ diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index 6efec0b9820c..2a0581d87706 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -23,6 +23,14 @@ enum mmc_blk_status { MMC_BLK_NEW_REQUEST, }; +struct uhs2_command { + u16 header; + u16 arg; + __be32 *payload; + u32 payload_len; + u32 packet_len; +}; + struct mmc_command { u32 opcode; u32 arg; @@ -109,6 +117,11 @@ struct mmc_command { unsigned int busy_timeout; /* busy detect timeout in ms */ struct mmc_data *data; /* data segment associated with cmd */ struct mmc_request *mrq; /* associated request */ + + struct uhs2_command *uhs2_cmd; /* UHS2 command */ + u8 *uhs2_resp; /* UHS2 native cmd resp */ + u8 uhs2_resp_len; /* UHS2 native cmd resp len */ + u8 uhs2_tmode0_flag; /* UHS2 transfer mode flag */ }; struct mmc_data { diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 895bcf7f80b7..249a9414ad10 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -16,6 +16,7 @@ #include <linux/mmc/pm.h> #include <linux/dma-direction.h> #include <linux/blk-crypto-profile.h> +#include <linux/mmc/sd_uhs2.h> struct mmc_ios { unsigned int clock; /* clock rate */ @@ -96,7 +97,48 @@ struct mmc_clk_phase_map { }; struct sd_uhs2_caps { - /* TODO: Add UHS-II capabilities for the host. */ + u32 dap; + u32 gap; + u32 group_desc; + u32 maxblk_len; + u32 n_fcu; + u8 n_lanes; + u8 addr64; + u8 card_type; + u8 phy_rev; + u8 speed_range; + u8 can_hibernate; + u8 n_lss_sync; + u8 n_lss_dir; + u8 link_rev; + u8 host_type; + u8 n_data_gap; + + u32 maxblk_len_set; + u32 n_fcu_set; + u8 n_lanes_set; + u8 n_lss_sync_set; + u8 n_lss_dir_set; + u8 n_data_gap_set; + u8 max_retry_set; +}; + +struct sd_uhs2_ios { + bool is_2L_HD_mode; + bool is_APP_CMD; + unsigned int power_delay_ms; /* waiting for stable power */ +}; + +enum sd_uhs2_operation { + UHS2_PHY_INIT = 0, + UHS2_SET_CONFIG, + UHS2_ENABLE_INT, + UHS2_DISABLE_INT, + UHS2_ENABLE_CLK, + UHS2_DISABLE_CLK, + UHS2_CHECK_DORMANT, + UHS2_SET_SPEED_B, + UHS2_POST_ATTACH_SD, }; struct mmc_host; @@ -231,6 +273,20 @@ struct mmc_host_ops { /* Initialize an SD express card, mandatory for MMC_CAP2_SD_EXP. */ int (*init_sd_express)(struct mmc_host *host, struct mmc_ios *ios); + + /* UHS2 interfaces */ + int (*uhs2_detect_init)(struct mmc_host *host); + int (*uhs2_set_reg)(struct mmc_host *host, enum sd_uhs2_operation act); + int (*uhs2_disable_clk)(struct mmc_host *host); + int (*uhs2_enable_clk)(struct mmc_host *host); + + /* + * The uhs2_control callback is used to execute SD UHS-II specific + * operations. It's mandatory to implement for hosts that supports the + * SD UHS-II interface (MMC_CAP2_SD_UHS2). Expected return values are a + * negative errno in case of a failure or zero for success. + */ + int (*uhs2_control)(struct mmc_host *host, enum sd_uhs2_operation op); }; struct mmc_cqe_ops { @@ -323,6 +379,7 @@ struct mmc_pwrseq; struct mmc_supply { struct regulator *vmmc; /* Card power supply */ + struct regulator *vmmc2; /* UHS2 VDD2 power supply */ struct regulator *vqmmc; /* Optional Vccq supply */ struct regulator *vqmmc2; /* Optional supply for phy */ }; @@ -344,10 +401,12 @@ struct mmc_host { u32 ocr_avail_sdio; /* SDIO-specific OCR */ u32 ocr_avail_sd; /* SD-specific OCR */ u32 ocr_avail_mmc; /* MMC-specific OCR */ + u32 ocr_avail_uhs2; /* UHS2-specific OCR */ struct wakeup_source *ws; /* Enable consume of uevents */ u32 max_current_330; u32 max_current_300; u32 max_current_180; + u32 max_current_180_vdd2; /* UHS2 vdd2 max curt. */ #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ @@ -366,6 +425,7 @@ struct mmc_host { #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ +#define MMC_VDD2_165_195 0x00000080 /* UHS2 VDD2 1.65 ~ 1.95 */ u32 caps; /* Host capabilities */ @@ -443,7 +503,12 @@ struct mmc_host { #endif #define MMC_CAP2_ALT_GPT_TEGRA (1 << 28) /* Host with eMMC that has GPT entry at a non-standard location */ + int flags; +#define MMC_UHS2_SUPPORT (1 << 0) +#define MMC_UHS2_2L_HD (1 << 2) + struct sd_uhs2_caps uhs2_caps; /* Host UHS-II capabilities */ + struct sd_uhs2_ios uhs2_ios; /* Host UHS-II capabilities */ int fixed_drv_type; /* fixed driver type for non-removable media */ @@ -695,4 +760,7 @@ int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); int mmc_send_abort_tuning(struct mmc_host *host, u32 opcode); int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); +#define mmc_uhs2_2L_HD_mode(h) ((h)->uhs2_ios.is_2L_HD_mode) +#define mmc_uhs2_APP_cmd(h) ((h)->uhs2_ios.is_APP_CMD) + #endif /* LINUX_MMC_HOST_H */ diff --git a/include/linux/mmc/sd_uhs2.h b/include/linux/mmc/sd_uhs2.h new file mode 100644 index 000000000000..8fcf702cf4a5 --- /dev/null +++ b/include/linux/mmc/sd_uhs2.h @@ -0,0 +1,263 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Header file for UHS-II packets, Host Controller registers and I/O + * accessors. + * + * Copyright (C) 2014 Intel Corp, All Rights Reserved. + */ +#ifndef LINUX_MMC_UHS2_H +#define LINUX_MMC_UHS2_H + +/* LINK Layer definition */ +/* + * UHS2 Header: + * Refer to UHS-II Addendum Version 1.02 Figure 5-2, the format of CCMD Header is described below: + * bit [3:0] : DID(Destination ID = Node ID of UHS2 card) + * bit [6:4] : TYP(Packet Type) + * 000b: CCMD(Control command packet) + * 001b: DCMD(Data command packet) + * 010b: RES(Response packet) + * 011b: DATA(Data payload packet) + * 111b: MSG(Message packet) + * Others: Reserved + * bit [7] : NP(Native Packet) + * bit [10:8] : TID(Transaction ID) + * bit [11] : Reserved + * bit [15:12]: SID(Source ID 0: Node ID of Host) + * + * Broadcast CCMD issued by Host is represented as DID=SID=0. + */ +/* + * UHS2 Argument: + * Refer to UHS-II Addendum Version 1.02 Figure 6-5, the format of CCMD Argument is described below: + * bit [3:0] : MSB of IOADR + * bit [5:4] : PLEN(Payload Length) + * 00b: 0 byte + * 01b: 4 bytes + * 10b: 8 bytes + * 11b: 16 bytes + * bit [6] : Reserved + * bit [7] : R/W(Read/Write) + * 0: Control read command + * 1: Control write command + * bit [15:8] : LSB of IOADR + * + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. + */ +#define UHS2_NATIVE_PACKET_POS 7 +#define UHS2_NATIVE_PACKET (1 << UHS2_NATIVE_PACKET_POS) + +#define UHS2_PACKET_TYPE_POS 4 +#define UHS2_PACKET_TYPE_CCMD (0 << UHS2_PACKET_TYPE_POS) +#define UHS2_PACKET_TYPE_DCMD (1 << UHS2_PACKET_TYPE_POS) +#define UHS2_PACKET_TYPE_RES (2 << UHS2_PACKET_TYPE_POS) +#define UHS2_PACKET_TYPE_DATA (3 << UHS2_PACKET_TYPE_POS) +#define UHS2_PACKET_TYPE_MSG (7 << UHS2_PACKET_TYPE_POS) + +#define UHS2_DEST_ID_MASK 0x0F +#define UHS2_DEST_ID 0x1 + +#define UHS2_SRC_ID_POS 12 +#define UHS2_SRC_ID_MASK 0xF000 + +#define UHS2_TRANS_ID_POS 8 +#define UHS2_TRANS_ID_MASK 0x0700 + +/* UHS2 MSG */ +#define UHS2_MSG_CTG_POS 5 +#define UHS2_MSG_CTG_LMSG 0x00 +#define UHS2_MSG_CTG_INT 0x60 +#define UHS2_MSG_CTG_AMSG 0x80 + +#define UHS2_MSG_CTG_FCREQ 0x00 +#define UHS2_MSG_CTG_FCRDY 0x01 +#define UHS2_MSG_CTG_STAT 0x02 + +#define UHS2_MSG_CODE_POS 8 +#define UHS2_MSG_CODE_FC_UNRECOVER_ERR 0x8 +#define UHS2_MSG_CODE_STAT_UNRECOVER_ERR 0x8 +#define UHS2_MSG_CODE_STAT_RECOVER_ERR 0x1 + +/* TRANS Layer definition */ + +/* Native packets*/ +#define UHS2_NATIVE_CMD_RW_POS 7 +#define UHS2_NATIVE_CMD_WRITE (1 << UHS2_NATIVE_CMD_RW_POS) +#define UHS2_NATIVE_CMD_READ (0 << UHS2_NATIVE_CMD_RW_POS) + +#define UHS2_NATIVE_CMD_PLEN_POS 4 +#define UHS2_NATIVE_CMD_PLEN_4B (1 << UHS2_NATIVE_CMD_PLEN_POS) +#define UHS2_NATIVE_CMD_PLEN_8B (2 << UHS2_NATIVE_CMD_PLEN_POS) +#define UHS2_NATIVE_CMD_PLEN_16B (3 << UHS2_NATIVE_CMD_PLEN_POS) + +#define UHS2_NATIVE_CCMD_GET_MIOADR_MASK 0xF00 +#define UHS2_NATIVE_CCMD_MIOADR_MASK 0x0F + +#define UHS2_NATIVE_CCMD_LIOADR_POS 8 +#define UHS2_NATIVE_CCMD_GET_LIOADR_MASK 0x0FF + +#define UHS2_CCMD_DEV_INIT_COMPLETE_FLAG BIT(11) +#define UHS2_DEV_INIT_PAYLOAD_LEN 1 +#define UHS2_DEV_INIT_RESP_LEN 6 +#define UHS2_DEV_ENUM_PAYLOAD_LEN 1 +#define UHS2_DEV_ENUM_RESP_LEN 8 +#define UHS2_CFG_WRITE_PAYLOAD_LEN 2 +#define UHS2_CFG_WRITE_PHY_SET_RESP_LEN 4 +#define UHS2_CFG_WRITE_GENERIC_SET_RESP_LEN 5 +#define UHS2_GO_DORMANT_PAYLOAD_LEN 1 + +/* + * UHS2 Argument: + * Refer to UHS-II Addendum Version 1.02 Figure 6-8, the format of DCMD Argument is described below: + * bit [3:0] : Reserved + * bit [6:3] : TMODE(Transfer Mode) + * bit 3: DAM(Data Access Mode) + * bit 4: TLUM(TLEN Unit Mode) + * bit 5: LM(Length Mode) + * bit 6: DM(Duplex Mode) + * bit [7] : R/W(Read/Write) + * 0: Control read command + * 1: Control write command + * bit [15:8] : Reserved + * + * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD. + * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last. + */ +#define UHS2_DCMD_DM_POS 6 +#define UHS2_DCMD_2L_HD_MODE (1 << UHS2_DCMD_DM_POS) +#define UHS2_DCMD_LM_POS 5 +#define UHS2_DCMD_LM_TLEN_EXIST (1 << UHS2_DCMD_LM_POS) +#define UHS2_DCMD_TLUM_POS 4 +#define UHS2_DCMD_TLUM_BYTE_MODE (1 << UHS2_DCMD_TLUM_POS) +#define UHS2_NATIVE_DCMD_DAM_POS 3 +#define UHS2_NATIVE_DCMD_DAM_IO (1 << UHS2_NATIVE_DCMD_DAM_POS) + +/* + * Per UHS2 spec, DCMD payload should be MSB first. There may be + * two types of data be assembled to MSB: + * 1. TLEN: Input block size for single read/write and number of blocks + * for multiple read/write to calculate TLEN as MSB first per spec. + * 2. SD command argument. + */ +static inline __be32 uhs2_dcmd_convert_msb(u32 input) +{ + u32 ret = 0; + + ret = ((input & 0xFF) << 24) | + (((input >> 8) & 0xFF) << 16) | + (((input >> 16) & 0xFF) << 8) | + ((input >> 24) & 0xFF); + return cpu_to_be32(ret); +} + +#define UHS2_RES_NACK_POS 7 +#define UHS2_RES_NACK_MASK (0x1 << UHS2_RES_NACK_POS) + +#define UHS2_RES_ECODE_POS 4 +#define UHS2_RES_ECODE_MASK 0x7 +#define UHS2_RES_ECODE_COND 1 +#define UHS2_RES_ECODE_ARG 2 +#define UHS2_RES_ECODE_GEN 3 + +/* IOADR of device registers */ +#define UHS2_IOADR_GENERIC_CAPS 0x00 +#define UHS2_IOADR_PHY_CAPS 0x02 +#define UHS2_IOADR_LINK_CAPS 0x04 +#define UHS2_IOADR_RSV_CAPS 0x06 +#define UHS2_IOADR_GENERIC_SETTINGS 0x08 +#define UHS2_IOADR_PHY_SETTINGS 0x0A +#define UHS2_IOADR_LINK_SETTINGS 0x0C +#define UHS2_IOADR_PRESET 0x40 + +/* SD application packets */ +#define UHS2_SD_CMD_INDEX_POS 8 + +#define UHS2_SD_CMD_APP_POS 14 +#define UHS2_SD_CMD_APP (1 << UHS2_SD_CMD_APP_POS) + +/* UHS-II Device Registers */ +#define UHS2_DEV_CONFIG_REG 0x000 + +/* General Caps and Settings registers */ +#define UHS2_DEV_CONFIG_GEN_CAPS (UHS2_DEV_CONFIG_REG + 0x000) +#define UHS2_DEV_CONFIG_N_LANES_POS 8 +#define UHS2_DEV_CONFIG_N_LANES_MASK 0x3F +#define UHS2_DEV_CONFIG_2L_HD_FD 0x1 +#define UHS2_DEV_CONFIG_2D1U_FD 0x2 +#define UHS2_DEV_CONFIG_1D2U_FD 0x4 +#define UHS2_DEV_CONFIG_2D2U_FD 0x8 +#define UHS2_DEV_CONFIG_DADR_POS 14 +#define UHS2_DEV_CONFIG_DADR_MASK 0x1 +#define UHS2_DEV_CONFIG_APP_POS 16 +#define UHS2_DEV_CONFIG_APP_MASK 0xFF +#define UHS2_DEV_CONFIG_APP_SD_MEM 0x1 + +#define UHS2_DEV_CONFIG_GEN_SET (UHS2_DEV_CONFIG_REG + 0x008) +#define UHS2_DEV_CONFIG_GEN_SET_N_LANES_POS 8 +#define UHS2_DEV_CONFIG_GEN_SET_2L_FD_HD 0x0 +#define UHS2_DEV_CONFIG_GEN_SET_2D1U_FD 0x2 +#define UHS2_DEV_CONFIG_GEN_SET_1D2U_FD 0x3 +#define UHS2_DEV_CONFIG_GEN_SET_2D2U_FD 0x4 +#define UHS2_DEV_CONFIG_GEN_SET_CFG_COMPLETE BIT(31) + +/* PHY Caps and Settings registers */ +#define UHS2_DEV_CONFIG_PHY_CAPS (UHS2_DEV_CONFIG_REG + 0x002) +#define UHS2_DEV_CONFIG_PHY_MINOR_MASK 0xF +#define UHS2_DEV_CONFIG_PHY_MAJOR_POS 4 +#define UHS2_DEV_CONFIG_PHY_MAJOR_MASK 0x3 +#define UHS2_DEV_CONFIG_CAN_HIBER_POS 15 +#define UHS2_DEV_CONFIG_CAN_HIBER_MASK 0x1 +#define UHS2_DEV_CONFIG_PHY_CAPS1 (UHS2_DEV_CONFIG_REG + 0x003) +#define UHS2_DEV_CONFIG_N_LSS_SYN_MASK 0xF +#define UHS2_DEV_CONFIG_N_LSS_DIR_POS 4 +#define UHS2_DEV_CONFIG_N_LSS_DIR_MASK 0xF + +#define UHS2_DEV_CONFIG_PHY_SET (UHS2_DEV_CONFIG_REG + 0x00A) +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_POS 6 +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_A 0x0 +#define UHS2_DEV_CONFIG_PHY_SET_SPEED_B 0x1 + +/* LINK-TRAN Caps and Settings registers */ +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS (UHS2_DEV_CONFIG_REG + 0x004) +#define UHS2_DEV_CONFIG_LT_MINOR_MASK 0xF +#define UHS2_DEV_CONFIG_LT_MAJOR_POS 4 +#define UHS2_DEV_CONFIG_LT_MAJOR_MASK 0x3 +#define UHS2_DEV_CONFIG_N_FCU_POS 8 +#define UHS2_DEV_CONFIG_N_FCU_MASK 0xFF +#define UHS2_DEV_CONFIG_DEV_TYPE_POS 16 +#define UHS2_DEV_CONFIG_DEV_TYPE_MASK 0x7 +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_POS 20 +#define UHS2_DEV_CONFIG_MAX_BLK_LEN_MASK 0xFFF +#define UHS2_DEV_CONFIG_LINK_TRAN_CAPS1 (UHS2_DEV_CONFIG_REG + 0x005) +#define UHS2_DEV_CONFIG_N_DATA_GAP_MASK 0xFF + +#define UHS2_DEV_CONFIG_LINK_TRAN_SET (UHS2_DEV_CONFIG_REG + 0x00C) +#define UHS2_DEV_CONFIG_LT_SET_MAX_BLK_LEN 0x200 +#define UHS2_DEV_CONFIG_LT_SET_MAX_RETRY_POS 16 + +/* Preset register */ +#define UHS2_DEV_CONFIG_PRESET (UHS2_DEV_CONFIG_REG + 0x040) + +#define UHS2_DEV_INT_REG 0x100 + +#define UHS2_DEV_STATUS_REG 0x180 + +#define UHS2_DEV_CMD_REG 0x200 +#define UHS2_DEV_CMD_FULL_RESET (UHS2_DEV_CMD_REG + 0x000) +#define UHS2_DEV_CMD_GO_DORMANT_STATE (UHS2_DEV_CMD_REG + 0x001) +#define UHS2_DEV_CMD_DORMANT_HIBER BIT(7) +#define UHS2_DEV_CMD_DEVICE_INIT (UHS2_DEV_CMD_REG + 0x002) +#define UHS2_DEV_INIT_COMPLETE_FLAG BIT(11) +#define UHS2_DEV_CMD_ENUMERATE (UHS2_DEV_CMD_REG + 0x003) +#define UHS2_DEV_CMD_TRANS_ABORT (UHS2_DEV_CMD_REG + 0x004) + +#define UHS2_RCLK_MAX 52000000 +#define UHS2_RCLK_MIN 26000000 + +struct sd_uhs2_wait_active_state_data { + struct mmc_host *host; + struct mmc_command *cmd; +}; + +#endif /* LINUX_MMC_UHS2_H */
Add UHS-II specific data structures for commands and defines for registers, as described in Part 1 UHS-II Addendum Version 1.01. UHS-II related definitions are listed below: 1. UHS-II card capability: sd_uhs2_caps{} 2. UHS-II configuration: sd_uhs2_config{} 3. UHS-II Command structure: uhs2_command{} 4. UHS-II register I/O address and register field definitions: sd_uhs2.h Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Jason Lai <jason.lai@genesyslogic.com.tw> Signed-off-by: Victor Shih <victor.shih@genesyslogic.com.tw> --- Updates in V5: - Added UHS2 interfaces in mmc_host_ops: host.h - Added UHS2 VDD2 power supply in mmc_supply: host.h - Added UHS2-specific OCR and UHS2 VDD2 max current in mmc_host: host.h - Added definition of UHS2 VDD2 1.65v-1.95v in mmc_host: host.h - Added flags/MMC_UHS2_SUPPORT/MMC_UHS2_2L_HD in mmc_host: host.h --- include/linux/mmc/card.h | 42 +++++- include/linux/mmc/core.h | 13 ++ include/linux/mmc/host.h | 70 +++++++++- include/linux/mmc/sd_uhs2.h | 263 ++++++++++++++++++++++++++++++++++++ 4 files changed, 386 insertions(+), 2 deletions(-) create mode 100644 include/linux/mmc/sd_uhs2.h