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[203.254.224.25]) by mx.google.com with ESMTP id pu7si18411883pbc.127.2013.01.04.01.12.16; Fri, 04 Jan 2013 01:12:17 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of amarendra.xt@samsung.com designates 203.254.224.25 as permitted sender) client-ip=203.254.224.25; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of amarendra.xt@samsung.com designates 203.254.224.25 as permitted sender) smtp.mail=amarendra.xt@samsung.com Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout2.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MG3001JJG89DNG0@mailout2.samsung.com>; Fri, 04 Jan 2013 18:12:15 +0900 (KST) Received: from epcpsbgm1.samsung.com ( [172.20.52.123]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 1B.60.01231.FEC96E05; Fri, 04 Jan 2013 18:12:15 +0900 (KST) X-AuditID: cbfee61a-b7fa66d0000004cf-0e-50e69cef7a87 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 5A.60.01231.FEC96E05; Fri, 04 Jan 2013 18:12:15 +0900 (KST) Received: from chrome-ubuntu.sisodomain.com ([107.108.73.106]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MG30081AG7XXLA0@mmp1.samsung.com>; Fri, 04 Jan 2013 18:12:15 +0900 (KST) From: Amar To: u-boot@lists.denx.de, jh80.chung@samsung.com Cc: patches@linaro.org, sjg@chromium.org, mk7.kang@samsung.com, chander.kashyap@linaro.org, afleming@gmail.com Subject: [PATCH V4 7/9] MMC: APIs to support resize of EMMC boot partition Date: Fri, 04 Jan 2013 04:34:08 -0500 Message-id: <1357292050-12137-8-git-send-email-amarendra.xt@samsung.com> X-Mailer: git-send-email 1.8.0 In-reply-to: <1357292050-12137-1-git-send-email-amarendra.xt@samsung.com> References: <1357292050-12137-1-git-send-email-amarendra.xt@samsung.com> DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrFLMWRmVeSWpSXmKPExsWyRsSkWvf9nGcBBlM/6Fs8XH+TxWLK4S8s Dkwed67tYQtgjOKySUnNySxLLdK3S+DK2PjGquCHRsXphe/YGxh/KXQxcnJICJhILGs5yAZh i0lcuLceyObiEBJYyijxZN50li5GDrCiAweTIOKLGCVmLTvODOH0MkncOv6IGaSITUBV4tdi e5BBIgIGEtOfbGcFCTMLFEg82y0GYgoLeEk8b9MFqWABKj587xjYdF4BD4kDG5whLpCT+LDn ETtImFPAU2LTFREQUwio4uqhEohGAYlvkw9BnSUrsekA2CUSAtfZJG4ceAf1h6TEwRU3WCYw Ci9gZFjFKJpakFxQnJSea6hXnJhbXJqXrpecn7uJERiAp/89k9rBuLLB4hCjAAejEg+v5Z2n AUKsiWXFlbmHGCU4mJVEeD9rPwsQ4k1JrKxKLcqPLyrNSS0+xOgDdMlEZinR5HxgdOSVxBsa m5ibGptaGhmZmZriEFYS52U89SRASCA9sSQ1OzW1ILUIZhwTB6dUA2PpGqbaZRt+LfxeZrqo cIuoYc/l088Z7h8Q17kYdnTpmb9yC588e+2zzf7oddvbbEtuZSxwP9QX8WOl0eIrfzTDojPb Vz86/a84rmpxLe+8e2qdlmrZU8K32E2X27/1nFhXe15rorjOznMN08NdWO6ey3xVx2HFE1S+ /udEi4jUln+ntatPxTYpsRRnJBpqMRcVJwIAO86FV20CAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupkkeLIzCtJLcpLzFFi42I5/e+xgO77Oc8CDI7MUbZ4uP4mi8WUw19Y HJg87lzbwxbAGNXAaJORmpiSWqSQmpecn5KZl26r5B0c7xxvamZgqGtoaWGupJCXmJtqq+Ti E6DrlpkDNFtJoSwxpxQoFJBYXKykb4dpQmiIm64FTGOErm9IEFyPkQEaSFjDmLHxjVXBD42K 0wvfsTcw/lLoYuTgkBAwkThwMKmLkRPIFJO4cG89WxcjF4eQwCJGiVnLjjNDOL1MEreOP2IG aWATUJX4tdgepEFEwEBi+pPtrCBhZoECiWe7xUBMYQEviedtuiAVLEDFh+8dYwEJ8wp4SBzY 4AyxSU7iw55H7CBhTgFPiU1XREBMIaCKq4dKJjDyLmBkWMUomlqQXFCclJ5rqFecmFtcmpeu l5yfu4kRHN7PpHYwrmywOMQowMGoxMNreedpgBBrYllxZe4hRgkOZiUR3s/azwKEeFMSK6tS i/Lji0pzUosPMfoAnTSRWUo0OR8Ye3kl8YbGJuamxqaWJhYmZpY4hJXEeRlPPQkQEkhPLEnN Tk0tSC2CGcfEwSkFjNoVDfr7JnQcaHOpmmQsLDhT6NYHb6vrIb68uyxnqFrfuHuxVWhGv4Nm zfx4LWaTV5zcCzYt6DqX7ipya2uJlenzpJdichren/3aI7f/mP7Ui4M5a/v3rEzDvXw3eNm7 p4rk2LHMOzQzzFu0cn7KnHWbZkdtmHZ72qYJ87v+rD8X7nRipsTsHCWW4oxEQy3mouJEAO9h qJ6cAgAA X-CFilter-Loop: Reflected X-Gm-Message-State: ALoCoQk2cqXCJUCgmjDHha1VEiCN561/7buWBb0QDkW3UNurHakmz8OTPmasRnJHwCm3fLBWNGYb This patch adds APIs to open, close and to resize boot partiton for EMMC. Changes from V1: New patch. Changes from V2: 1)Updation of commit message and resubmition of proper patch set. Changes from V3: No change. Signed-off-by: Amar --- drivers/mmc/mmc.c | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/mmc.h | 16 ++++++++ 2 files changed, 134 insertions(+) diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 72e8ce6..8175b49 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1327,3 +1327,121 @@ int mmc_initialize(bd_t *bis) return 0; } + +int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, + unsigned long rpmbsize) +{ + int err; + struct mmc_cmd cmd; + + /* Only use this command for raw EMMC moviNAND */ + /* Enter backdoor mode */ + cmd.cmdidx = MMC_CMD_RES_MAN; + cmd.resp_type = MMC_RSP_R1b; + cmd.cmdarg = MMC_CMD62_ARG1; + + err = mmc_send_cmd(mmc, &cmd, NULL); + if (err) { + debug("mmc_boot_partition_size_change: Error1 = %d\n", err); + return err; + } + + /* Boot partition changing mode */ + cmd.cmdidx = MMC_CMD_RES_MAN; + cmd.resp_type = MMC_RSP_R1b; + cmd.cmdarg = MMC_CMD62_ARG2; + + err = mmc_send_cmd(mmc, &cmd, NULL); + if (err) { + debug("mmc_boot_partition_size_change: Error2 = %d\n", err); + return err; + } + /* boot partition size is multiple of 128KB */ + bootsize = ((bootsize*1024)/128); + + /* Arg: boot partition size */ + cmd.cmdidx = MMC_CMD_RES_MAN; + cmd.resp_type = MMC_RSP_R1b; + cmd.cmdarg = bootsize; + + err = mmc_send_cmd(mmc, &cmd, NULL); + if (err) { + debug("mmc_boot_partition_size_change: Error3 = %d\n", err); + return err; + } + /* RPMB partition size is multiple of 128KB */ + rpmbsize = ((rpmbsize*1024)/128); + /* Arg: RPMB partition size */ + cmd.cmdidx = MMC_CMD_RES_MAN; + cmd.resp_type = MMC_RSP_R1b; + cmd.cmdarg = rpmbsize; + + err = mmc_send_cmd(mmc, &cmd, NULL); + if (err) { + debug("mmc_boot_partition_size_change: Error4 = %d\n", err); + return err; + } + return 0; +} + +int mmc_boot_open(struct mmc *mmc) +{ + int err; + struct mmc_cmd cmd; + + /* Boot ack enable, boot partition enable , boot partition access */ + cmd.cmdidx = MMC_CMD_SWITCH; + cmd.resp_type = MMC_RSP_R1b; + + cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24 | + EXT_CSD_PART_CONF << 16 | + (EXT_CSD_BOOT_ACK_ENABLE | + EXT_CSD_BOOT_PARTITION_ENABLE | + EXT_CSD_PARTITION_ACCESS_ENABLE) << 8); + + err = mmc_send_cmd(mmc, &cmd, NULL); + if (err) { + debug("mmc_boot_open: Error1 = %d\n", err); + return err; + } + + /* 4bit transfer mode at booting time. */ + cmd.cmdidx = MMC_CMD_SWITCH; + cmd.resp_type = MMC_RSP_R1b; + + cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24| + EXT_CSD_BOOT_BUS_WIDTH << 16| + ((1<<0) << 8)); + + err = mmc_send_cmd(mmc, &cmd, NULL); + if (err) { + debug("mmc_boot_open: Error2 = %d\n", err); + return err; + } + + return 0; +} + +int mmc_boot_close(struct mmc *mmc) +{ + int err; + struct mmc_cmd cmd; + + /* Boot ack enable, boot partition enable , boot partition access */ + cmd.cmdidx = MMC_CMD_SWITCH; + cmd.resp_type = MMC_RSP_R1b; + + cmd.cmdarg = (MMC_SWITCH_MODE_WRITE_BYTE << 24| + EXT_CSD_PART_CONF << 16| + (EXT_CSD_BOOT_ACK_ENABLE | + EXT_CSD_BOOT_PARTITION_ENABLE | + EXT_CSD_PARTITION_ACCESS_DISABLE) << 8); + + err = mmc_send_cmd(mmc, &cmd, NULL); + if (err) { + debug("mmc_boot_close: Error = %d\n", err); + return err; + } + + return 0; +} diff --git a/include/mmc.h b/include/mmc.h index a13e2bd..999f0a3 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -86,6 +86,11 @@ #define MMC_CMD_APP_CMD 55 #define MMC_CMD_SPI_READ_OCR 58 #define MMC_CMD_SPI_CRC_ON_OFF 59 +#define MMC_CMD_RES_MAN 62 + +#define MMC_CMD62_ARG1 0xefac62ec +#define MMC_CMD62_ARG2 0xcbaea7 + #define SD_CMD_SEND_RELATIVE_ADDR 3 #define SD_CMD_SWITCH_FUNC 6 @@ -153,6 +158,7 @@ */ #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */ #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ +#define EXT_CSD_BOOT_BUS_WIDTH 177 #define EXT_CSD_PART_CONF 179 /* R/W */ #define EXT_CSD_BUS_WIDTH 183 /* R/W */ #define EXT_CSD_HS_TIMING 185 /* R/W */ @@ -177,6 +183,12 @@ #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ +#define EXT_CSD_BOOT_ACK_ENABLE (1<<6) +#define EXT_CSD_BOOT_PARTITION_ENABLE (1<<3) +#define EXT_CSD_PARTITION_ACCESS_ENABLE (1<<0) +#define EXT_CSD_PARTITION_ACCESS_DISABLE (0<<0) + + #define R1_ILLEGAL_COMMAND (1 << 22) #define R1_APP_CMD (1 << 5) @@ -275,6 +287,10 @@ int board_mmc_getcd(struct mmc *mmc); int mmc_switch_part(int dev_num, unsigned int part_num); int mmc_getcd(struct mmc *mmc); void spl_mmc_load(void) __noreturn; +int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, + unsigned long rpmbsize); +int mmc_boot_open(struct mmc *mmc); +int mmc_boot_close(struct mmc *mmc); #ifdef CONFIG_GENERIC_MMC #define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI)