From patchwork Thu Feb 27 07:58:11 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Nemirovsky X-Patchwork-Id: 236929 List-Id: U-Boot discussion From: alex.nemirovsky at cortina-access.com (Alex Nemirovsky) Date: Wed, 26 Feb 2020 23:58:11 -0800 Subject: [PATCH v2 1/8] mmc: ca_dw_mmc: add DesignWare based DM support for CAxxxx SoCs In-Reply-To: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> References: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> Message-ID: <1582790298-5546-2-git-send-email-alex.nemirovsky@cortina-access.com> From: Arthur Li Initial DesignWare based DM support for Cortina Access CAxxxx SoCs. Signed-off-by: Arthur Li Signed-off-by: Alex Nemirovsky --- Changes in v2: - Add I2C controller - Add LED controller - Add SPI NAND and NOR controller MAINTAINERS | 2 + drivers/mmc/Kconfig | 11 +++ drivers/mmc/Makefile | 1 + drivers/mmc/ca_dw_mmc.c | 181 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 195 insertions(+) create mode 100644 drivers/mmc/ca_dw_mmc.c diff --git a/MAINTAINERS b/MAINTAINERS index 82e4159..bb45d3c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -180,6 +180,7 @@ F: board/cortina/common/ F: drivers/gpio/cortina_gpio.c F: drivers/watchdog/cortina_wdt.c F: drivers/serial/serial_cortina.c +F: drivers/mmc/ca_dw_mmc.c ARM/CZ.NIC TURRIS MOX SUPPORT M: Marek Behun @@ -670,6 +671,7 @@ F: board/cortina/common/ F: drivers/gpio/cortina_gpio.c F: drivers/watchdog/cortina_wdt.c F: drivers/serial/serial_cortina.c +F: drivers/mmc/ca_dw_mmc.c MIPS MSCC M: Gregory CLEMENT diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig index 2f0eedc..bb38787 100644 --- a/drivers/mmc/Kconfig +++ b/drivers/mmc/Kconfig @@ -205,6 +205,17 @@ config MMC_DW block, this provides host support for SD and MMC interfaces, in both PIO, internal DMA mode and external DMA mode. +config MMC_DW_CORTINA + bool "Cortina specific extensions for Synopsys DW Memory Card Interface" + depends on DM_MMC + depends on MMC_DW + depends on BLK + default n + help + This selects support for Cortina SoC specific extensions to the + Synopsys DesignWare Memory Card Interface driver. Select this option + for platforms based on Cortina CAxxxx Soc's. + config MMC_DW_EXYNOS bool "Exynos specific extensions for Synopsys DW Memory Card Interface" depends on ARCH_EXYNOS diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile index 9c1f8e5..615b724 100644 --- a/drivers/mmc/Makefile +++ b/drivers/mmc/Makefile @@ -20,6 +20,7 @@ endif obj-$(CONFIG_ARM_PL180_MMCI) += arm_pl180_mmci.o obj-$(CONFIG_MMC_DAVINCI) += davinci_mmc.o obj-$(CONFIG_MMC_DW) += dw_mmc.o +obj-$(CONFIG_MMC_DW_CORTINA) += ca_dw_mmc.o obj-$(CONFIG_MMC_DW_EXYNOS) += exynos_dw_mmc.o obj-$(CONFIG_MMC_DW_K3) += hi6220_dw_mmc.o obj-$(CONFIG_MMC_DW_ROCKCHIP) += rockchip_dw_mmc.o diff --git a/drivers/mmc/ca_dw_mmc.c b/drivers/mmc/ca_dw_mmc.c new file mode 100644 index 0000000..acbc850 --- /dev/null +++ b/drivers/mmc/ca_dw_mmc.c @@ -0,0 +1,181 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2019 Cortina Access + * Arthur Li + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define SD_CLK_SEL_MASK (0x3) +#define SD_DLL_DEFAULT (0x143000) +#define SD_SCLK_MAX (200000000) + +#define SD_CLK_SEL_200MHZ (0x2) +#define SD_CLK_SEL_100MHZ (0x1) + +#define IO_DRV_SD_DS_OFFSET (16) +#define IO_DRV_SD_DS_MASK (0xff << IO_DRV_SD_DS_OFFSET) + +#define MIN_FREQ (400000) + +DECLARE_GLOBAL_DATA_PTR; + +struct ca_mmc_plat { + struct mmc_config cfg; + struct mmc mmc; +}; + +struct ca_dwmmc_priv_data { + struct dwmci_host host; + void __iomem *sd_dll_reg; + void __iomem *io_drv_reg; + u8 ds; +}; + +static void ca_dwmci_clksel(struct dwmci_host *host) +{ + struct ca_dwmmc_priv_data *priv = host->priv; + u32 val = readl(priv->sd_dll_reg); + + if (host->bus_hz >= 200000000) { + val &= ~SD_CLK_SEL_MASK; + val |= SD_CLK_SEL_200MHZ; + } else if (host->bus_hz >= 100000000) { + val &= ~SD_CLK_SEL_MASK; + val |= SD_CLK_SEL_100MHZ; + } else { + val &= ~SD_CLK_SEL_MASK; + } + + writel(val, priv->sd_dll_reg); +} + +static void ca_dwmci_board_init(struct dwmci_host *host) +{ + struct ca_dwmmc_priv_data *priv = host->priv; + u32 val = readl(priv->io_drv_reg); + + writel(SD_DLL_DEFAULT, priv->sd_dll_reg); + + val &= ~IO_DRV_SD_DS_MASK; + if (priv && priv->ds) + val |= priv->ds << IO_DRV_SD_DS_OFFSET; + writel(val, priv->io_drv_reg); +} + +unsigned int ca_dwmci_get_mmc_clock(struct dwmci_host *host, uint freq) +{ + struct ca_dwmmc_priv_data *priv = host->priv; + u8 sd_clk_sel = readl(priv->sd_dll_reg) & SD_CLK_SEL_MASK; + u8 clk_div; + + switch (sd_clk_sel) { + case 2: + clk_div = 1; + break; + case 1: + clk_div = 2; + break; + default: + clk_div = 4; + } + + return SD_SCLK_MAX / clk_div / (host->div + 1); +} + +static int ca_dwmmc_ofdata_to_platdata(struct udevice *dev) +{ + struct ca_dwmmc_priv_data *priv = dev_get_priv(dev); + struct dwmci_host *host = &priv->host; + u32 tmp; + + host->name = dev->name; + host->dev_index = 0; + + host->buswidth = dev_read_u32_default(dev, "bus-width", 1); + if (host->buswidth != 1 && host->buswidth != 4) + return -EINVAL; + + host->bus_hz = dev_read_u32_default(dev, "max-frequency", 50000000); + priv->ds = dev_read_u32_default(dev, "io_ds", 0x33); + host->fifo_mode = dev_read_bool(dev, "fifo-mode"); + + dev_read_u32(dev, "sd_dll_ctrl", &tmp); + priv->sd_dll_reg = map_sysmem((uintptr_t)tmp, sizeof(uintptr_t)); + if (!priv->sd_dll_reg) + return -EINVAL; + + dev_read_u32(dev, "io_drv_ctrl", &tmp); + priv->io_drv_reg = map_sysmem((uintptr_t)tmp, sizeof(uintptr_t)); + if (!priv->io_drv_reg) + return -EINVAL; + + host->ioaddr = dev_read_addr_ptr(dev); + if (host->ioaddr == (void *)FDT_ADDR_T_NONE) { + printf("DWMMC: base address is invalid\n"); + return -EINVAL; + } + + host->priv = priv; + + return 0; +} + +struct dm_mmc_ops ca_dwmci_dm_ops; + +static int ca_dwmmc_probe(struct udevice *dev) +{ + struct ca_mmc_plat *plat = dev_get_platdata(dev); + struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); + struct ca_dwmmc_priv_data *priv = dev_get_priv(dev); + struct dwmci_host *host = &priv->host; + + memcpy(&ca_dwmci_dm_ops, &dm_dwmci_ops, sizeof(struct dm_mmc_ops)); + + dwmci_setup_cfg(&plat->cfg, host, host->bus_hz, MIN_FREQ); + if (host->buswidth == 1) { + (&plat->cfg)->host_caps &= ~MMC_MODE_8BIT; + (&plat->cfg)->host_caps &= ~MMC_MODE_4BIT; + } + + host->mmc = &plat->mmc; + host->mmc->priv = &priv->host; + upriv->mmc = host->mmc; + host->mmc->dev = dev; + host->clksel = ca_dwmci_clksel; + host->board_init = ca_dwmci_board_init; + host->get_mmc_clk = ca_dwmci_get_mmc_clock; + + return dwmci_probe(dev); +} + +static int ca_dwmmc_bind(struct udevice *dev) +{ + struct ca_mmc_plat *plat = dev_get_platdata(dev); + + return dwmci_bind(dev, &plat->mmc, &plat->cfg); +} + +static const struct udevice_id ca_dwmmc_ids[] = { + { .compatible = "snps,dw-cortina" }, + { } +}; + +U_BOOT_DRIVER(ca_dwmmc_drv) = { + .name = "cortina_dwmmc", + .id = UCLASS_MMC, + .of_match = ca_dwmmc_ids, + .ofdata_to_platdata = ca_dwmmc_ofdata_to_platdata, + .bind = ca_dwmmc_bind, + .ops = &ca_dwmci_dm_ops, + .probe = ca_dwmmc_probe, + .priv_auto_alloc_size = sizeof(struct ca_dwmmc_priv_data), + .platdata_auto_alloc_size = sizeof(struct ca_mmc_plat), +}; From patchwork Thu Feb 27 07:58:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Nemirovsky X-Patchwork-Id: 236931 List-Id: U-Boot discussion From: alex.nemirovsky at cortina-access.com (Alex Nemirovsky) Date: Wed, 26 Feb 2020 23:58:12 -0800 Subject: [PATCH v2 2/8] board: presidio-asic: Add eMMC board support In-Reply-To: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> References: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> Message-ID: <1582790298-5546-3-git-send-email-alex.nemirovsky@cortina-access.com> Add initial eMMC support for Cortina Access Presidio Engineering Board Signed-off-by: Alex Nemirovsky --- Changes in v2: None configs/cortina_presidio-asic-emmc_defconfig | 33 ++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 configs/cortina_presidio-asic-emmc_defconfig diff --git a/configs/cortina_presidio-asic-emmc_defconfig b/configs/cortina_presidio-asic-emmc_defconfig new file mode 100644 index 0000000..e10008a --- /dev/null +++ b/configs/cortina_presidio-asic-emmc_defconfig @@ -0,0 +1,33 @@ +CONFIG_ARM=y +# CONFIG_SYS_ARCH_TIMER is not set +CONFIG_TARGET_PRESIDIO_ASIC=y +CONFIG_SYS_TEXT_BASE=0x04000000 +CONFIG_ENV_SIZE=0x20000 +CONFIG_DM_GPIO=y +CONFIG_NR_DRAM_BANKS=1 +CONFIG_IDENT_STRING="Presidio-SoC" +CONFIG_SHOW_BOOT_PROGRESS=y +CONFIG_BOOTDELAY=3 +CONFIG_BOARD_EARLY_INIT_R=y +CONFIG_SYS_PROMPT="G3#" +CONFIG_CMD_MMC=y +CONFIG_CMD_PART=y +CONFIG_CMD_WDT=y +CONFIG_CMD_CACHE=y +CONFIG_CMD_TIMER=y +CONFIG_CMD_SMC=y +CONFIG_CMD_EXT2=y +CONFIG_CMD_EXT4=y +CONFIG_OF_CONTROL=y +CONFIG_OF_LIVE=y +CONFIG_DEFAULT_DEVICE_TREE="ca-presidio-engboard" +# CONFIG_NET is not set +CONFIG_DM=y +CONFIG_CORTINA_GPIO=y +CONFIG_DM_MMC=y +CONFIG_MMC_DW=y +CONFIG_MMC_DW_CORTINA=y +CONFIG_DM_SERIAL=y +CONFIG_CORTINA_UART=y +CONFIG_WDT=y +CONFIG_WDT_CORTINA=y From patchwork Thu Feb 27 07:58:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Nemirovsky X-Patchwork-Id: 236935 List-Id: U-Boot discussion From: alex.nemirovsky at cortina-access.com (Alex Nemirovsky) Date: Wed, 26 Feb 2020 23:58:13 -0800 Subject: [PATCH v2 3/8] i2c: i2c-cortina: added CAxxxx I2C support In-Reply-To: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> References: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> Message-ID: <1582790298-5546-4-git-send-email-alex.nemirovsky@cortina-access.com> From: Arthur Li Add I2C controller support for Cortina Access CAxxxx SoCs Signed-off-by: Arthur Li Signed-off-by: Alex Nemirovsky --- Changes in v2: None MAINTAINERS | 4 + drivers/i2c/Kconfig | 7 + drivers/i2c/Makefile | 1 + drivers/i2c/i2c-cortina.c | 346 ++++++++++++++++++++++++++++++++++++++++++++++ drivers/i2c/i2c-cortina.h | 92 ++++++++++++ 5 files changed, 450 insertions(+) create mode 100644 drivers/i2c/i2c-cortina.c create mode 100644 drivers/i2c/i2c-cortina.h diff --git a/MAINTAINERS b/MAINTAINERS index bb45d3c..b147faa 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -181,6 +181,8 @@ F: drivers/gpio/cortina_gpio.c F: drivers/watchdog/cortina_wdt.c F: drivers/serial/serial_cortina.c F: drivers/mmc/ca_dw_mmc.c +F: drivers/i2c/i2c-cortina.c +F: drivers/i2c/i2c-cortina.h ARM/CZ.NIC TURRIS MOX SUPPORT M: Marek Behun @@ -672,6 +674,8 @@ F: drivers/gpio/cortina_gpio.c F: drivers/watchdog/cortina_wdt.c F: drivers/serial/serial_cortina.c F: drivers/mmc/ca_dw_mmc.c +F: drivers/i2c/i2c-cortina.c +F: drivers/i2c/i2c-cortina.h MIPS MSCC M: Gregory CLEMENT diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 03d2fed..b98a4aa 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -85,6 +85,13 @@ config SYS_I2C_CADENCE Say yes here to select Cadence I2C Host Controller. This controller is e.g. used by Xilinx Zynq. +config SYS_I2C_CA + tristate "Cortina-Access I2C Controller" + depends on DM_I2C && CORTINA_PLATFORM + default n + help + Say yes here to select Cortina-Access I2C Host Controller. + config SYS_I2C_DAVINCI bool "Davinci I2C Controller" depends on (ARCH_KEYSTONE || ARCH_DAVINCI) diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile index f5a471f..5d18cf7 100644 --- a/drivers/i2c/Makefile +++ b/drivers/i2c/Makefile @@ -12,6 +12,7 @@ obj-$(CONFIG_SYS_I2C) += i2c_core.o obj-$(CONFIG_SYS_I2C_ASPEED) += ast_i2c.o obj-$(CONFIG_SYS_I2C_AT91) += at91_i2c.o obj-$(CONFIG_SYS_I2C_CADENCE) += i2c-cdns.o +obj-$(CONFIG_SYS_I2C_CA) += i2c-cortina.o obj-$(CONFIG_SYS_I2C_DAVINCI) += davinci_i2c.o obj-$(CONFIG_SYS_I2C_DW) += designware_i2c.o ifdef CONFIG_DM_PCI diff --git a/drivers/i2c/i2c-cortina.c b/drivers/i2c/i2c-cortina.c new file mode 100644 index 0000000..99c63f3 --- /dev/null +++ b/drivers/i2c/i2c-cortina.c @@ -0,0 +1,346 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2020 + * Arthur Li, Cortina Access, arthur.li at cortina-access.com. + */ + +#include +#include +#include +#include +#include +#include "i2c-cortina.h" + +static void set_speed(struct i2c_regs *regs, int i2c_spd) +{ + union ca_biw_cfg i2c_cfg; + + i2c_cfg.wrd = readl(®s->i2c_cfg); + i2c_cfg.bf.core_en = 0; + writel(i2c_cfg.wrd, ®s->i2c_cfg); + + switch (i2c_spd) { + case IC_SPEED_MODE_MAX: + i2c_cfg.bf.prer = + CORTINA_PER_IO_FREQ / (5 * I2C_MAX_SPEED) - 1; + break; + + case IC_SPEED_MODE_STANDARD: + i2c_cfg.bf.prer = + CORTINA_PER_IO_FREQ / (5 * I2C_STANDARD_SPEED) - 1; + break; + + case IC_SPEED_MODE_FAST: + default: + i2c_cfg.bf.prer = + CORTINA_PER_IO_FREQ / (5 * I2C_FAST_SPEED) - 1; + break; + } + + i2c_cfg.bf.core_en = 1; + writel(i2c_cfg.wrd, ®s->i2c_cfg); +} + +static int ca_i2c_set_bus_speed(struct udevice *bus, unsigned int speed) +{ + struct ca_i2c *priv = dev_get_priv(bus); + int i2c_spd; + + if (speed >= I2C_MAX_SPEED) { + i2c_spd = IC_SPEED_MODE_MAX; + priv->speed = I2C_MAX_SPEED; + } else if (speed >= I2C_FAST_SPEED) { + i2c_spd = IC_SPEED_MODE_FAST; + priv->speed = I2C_FAST_SPEED; + } else { + i2c_spd = IC_SPEED_MODE_STANDARD; + priv->speed = I2C_STANDARD_SPEED; + } + + set_speed(priv->regs, i2c_spd); + + return 0; +} + +static int ca_i2c_get_bus_speed(struct udevice *bus) +{ + struct ca_i2c *priv = dev_get_priv(bus); + + return priv->speed; +} + +static void ca_i2c_init(struct i2c_regs *regs) +{ + union ca_biw_cfg i2c_cfg; + + i2c_cfg.wrd = readl(®s->i2c_cfg); + i2c_cfg.bf.core_en = 0; + i2c_cfg.bf.biw_soft_reset = 1; + writel(i2c_cfg.wrd, ®s->i2c_cfg); + mdelay(10); + i2c_cfg.bf.biw_soft_reset = 0; + writel(i2c_cfg.wrd, ®s->i2c_cfg); + + set_speed(regs, IC_SPEED_MODE_STANDARD); + + i2c_cfg.wrd = readl(®s->i2c_cfg); + i2c_cfg.bf.core_en = 1; + writel(i2c_cfg.wrd, ®s->i2c_cfg); +} + +static int i2c_wait_complete(struct i2c_regs *regs) +{ + union ca_biw_ctrl i2c_ctrl; + unsigned long start_time_bb = get_timer(0); + + i2c_ctrl.wrd = readl(®s->i2c_ctrl); + + while (i2c_ctrl.bf.biwdone == 0) { + i2c_ctrl.wrd = readl(®s->i2c_ctrl); + + if (get_timer(start_time_bb) > + (unsigned long)(I2C_BYTE_TO_BB)) { + printf("%s not done!!!\n", __func__); + return 1; + } + } + + /* Clear done bit */ + writel(i2c_ctrl.wrd, ®s->i2c_ctrl); + + return 0; +} + +static void i2c_setaddress(struct i2c_regs *regs, unsigned int i2c_addr, + int write_read) +{ + writel(i2c_addr | write_read, ®s->i2c_txr); + + writel(BIW_CTRL_START | BIW_CTRL_WRITE, + ®s->i2c_ctrl); + + i2c_wait_complete(regs); +} + +static int i2c_wait_for_bus_busy(struct i2c_regs *regs) +{ + union ca_biw_ack i2c_ack; + unsigned long start_time_bb = get_timer(0); + + i2c_ack.wrd = readl(®s->i2c_ack); + + while (i2c_ack.bf.biw_busy) { + i2c_ack.wrd = readl(®s->i2c_ack); + + if (get_timer(start_time_bb) > + (unsigned long)(I2C_BYTE_TO_BB)) { + printf("%s: timeout!\n", __func__); + return 1; + } + } + + return 0; +} + +static int i2c_xfer_init(struct i2c_regs *regs, uint8_t chip, uint addr, + int alen, int write_read) +{ + int addr_len = alen; + + if (i2c_wait_for_bus_busy(regs)) + return 1; + /* First cycle must write addr + offset */ + chip = ((chip & 0x7F) << 1); + if (alen == 0 && write_read == I2C_CMD_RD) + i2c_setaddress(regs, chip, I2C_CMD_RD); + else + i2c_setaddress(regs, chip, I2C_CMD_WT); + + while (alen) { + alen--; + writel(addr, ®s->i2c_txr); + if (write_read == I2C_CMD_RD) + writel(BIW_CTRL_WRITE | BIW_CTRL_STOP, + ®s->i2c_ctrl); + else + writel(BIW_CTRL_WRITE, ®s->i2c_ctrl); + i2c_wait_complete(regs); + } + + /* Send address again with Read flag if it's read command */ + if (write_read == I2C_CMD_RD && addr_len > 0) + i2c_setaddress(regs, chip, I2C_CMD_RD); + + return 0; +} + +static int i2c_xfer_finish(struct i2c_regs *regs) +{ + /* Dummy read makes bus free */ + writel(BIW_CTRL_READ | BIW_CTRL_STOP, ®s->i2c_ctrl); + i2c_wait_complete(regs); + + if (i2c_wait_for_bus_busy(regs)) { + printf("Timed out waiting for bus\n"); + return 1; + } + + return 0; +} + +static int ca_i2c_read(struct i2c_regs *regs, uint8_t chip, uint addr, + int alen, uint8_t *buffer, int len) +{ + unsigned long start_time_rx; + int rc = 0; + + if (i2c_xfer_init(regs, chip, addr, alen, I2C_CMD_RD)) + return 1; + + start_time_rx = get_timer(0); + while (len) { + /* ACK_IN is ack value to send during read. + * ack high only on the very last byte! + */ + if (len == 1) { + writel(BIW_CTRL_READ | BIW_CTRL_ACK_IN | BIW_CTRL_STOP, + ®s->i2c_ctrl); + } else { + writel(BIW_CTRL_READ, ®s->i2c_ctrl); + } + + rc = i2c_wait_complete(regs); + udelay(1); + + if (rc == 0) { + *buffer++ = + (uchar) readl(®s->i2c_rxr); + len--; + start_time_rx = get_timer(0); + + } else if (get_timer(start_time_rx) > I2C_BYTE_TO) { + return 1; + } + } + i2c_xfer_finish(regs); + return rc; +} + +static int ca_i2c_write(struct i2c_regs *regs, uint8_t chip, uint addr, + int alen, uint8_t *buffer, int len) +{ + int rc, nb = len; + unsigned long start_time_tx; + + if (i2c_xfer_init(regs, chip, addr, alen, I2C_CMD_WT)) + return 1; + + start_time_tx = get_timer(0); + while (len) { + writel(*buffer, ®s->i2c_txr); + if (len == 1) { + writel(BIW_CTRL_WRITE | BIW_CTRL_STOP, + ®s->i2c_ctrl); + } else { + writel(BIW_CTRL_WRITE, ®s->i2c_ctrl); + } + + rc = i2c_wait_complete(regs); + + if (rc == 0) { + len--; + buffer++; + start_time_tx = get_timer(0); + } else if (get_timer(start_time_tx) > (nb * I2C_BYTE_TO)) { + printf("Timed out. i2c write Failed\n"); + return 1; + } + } + + return 0; +} + +static int ca_i2c_probe_chip(struct udevice *bus, uint chip_addr, + uint chip_flags) +{ + struct ca_i2c *priv = dev_get_priv(bus); + int ret; + u32 tmp; + + /* Try to read the first location of the chip */ + ret = ca_i2c_read(priv->regs, chip_addr, 0, 1, (uchar *)&tmp, 1); + if (ret) + ca_i2c_init(priv->regs); + + return ret; +} + +static int ca_i2c_xfer(struct udevice *bus, struct i2c_msg *msg, int nmsgs) +{ + struct ca_i2c *priv = dev_get_priv(bus); + int ret; + + debug("i2c_xfer: %d messages\n", nmsgs); + for (; nmsgs > 0; nmsgs--, msg++) { + debug("i2c_xfer: chip=0x%x, len=0x%x\n", msg->addr, msg->len); + if (msg->flags & I2C_M_RD) { + ret = ca_i2c_read(priv->regs, msg->addr, 0, 0, + msg->buf, msg->len); + } else { + ret = ca_i2c_write(priv->regs, msg->addr, 0, 0, + msg->buf, msg->len); + } + + if (ret) { + debug("i2c_write: error sending\n"); + return -EREMOTEIO; + } + } + + return 0; +} + +static const struct dm_i2c_ops ca_i2c_ops = { + .xfer = ca_i2c_xfer, + .probe_chip = ca_i2c_probe_chip, + .set_bus_speed = ca_i2c_set_bus_speed, + .get_bus_speed = ca_i2c_get_bus_speed, +}; + +static const struct udevice_id ca_i2c_ids[] = { + { .compatible = "cortina,ca-i2c", }, + { } +}; + +static int ca_i2c_probe(struct udevice *bus) +{ + struct ca_i2c *priv = dev_get_priv(bus); + + ca_i2c_init(priv->regs); + + return 0; +} + +static int ca_i2c_ofdata_to_platdata(struct udevice *bus) +{ + struct ca_i2c *priv = dev_get_priv(bus); + + priv->regs = map_sysmem(dev_read_addr(bus), sizeof(struct i2c_regs)); + if (!priv->regs) { + printf("I2C: base address is invalid\n"); + return -EINVAL; + } + + return 0; +} + +U_BOOT_DRIVER(i2c_cortina) = { + .name = "i2c_cortina", + .id = UCLASS_I2C, + .of_match = ca_i2c_ids, + .ofdata_to_platdata = ca_i2c_ofdata_to_platdata, + .probe = ca_i2c_probe, + .priv_auto_alloc_size = sizeof(struct ca_i2c), + .ops = &ca_i2c_ops, + .flags = DM_FLAG_PRE_RELOC, +}; diff --git a/drivers/i2c/i2c-cortina.h b/drivers/i2c/i2c-cortina.h new file mode 100644 index 0000000..f1c3dc7 --- /dev/null +++ b/drivers/i2c/i2c-cortina.h @@ -0,0 +1,92 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2019 + * Cortina Access, + */ + +#ifndef __CA_I2C_H_ +#define __CA_I2C_H_ + +#if !defined(__ASSEMBLER__) && !defined(__ASSEMBLY__) +struct i2c_regs { + u32 i2c_cfg; + u32 i2c_ctrl; + u32 i2c_txr; + u32 i2c_rxr; + u32 i2c_ack; + u32 i2c_ie0; + u32 i2c_int0; + u32 i2c_ie1; + u32 i2c_int1; + u32 i2c_stat; +}; + +union ca_biw_cfg { + struct biw_cfg { + u32 core_en : 1; + u32 biw_soft_reset : 1; + u32 busywait_en : 1; + u32 stretch_en : 1; + u32 arb_en : 1; + u32 clksync_en : 1; + u32 rsrvd1 : 2; + u32 spike_cnt : 4; + u32 rsrvd2 : 4; + u32 prer : 16; + } bf; + unsigned int wrd; +}; + +union ca_biw_ctrl { + struct biw_ctrl { + u32 biwdone : 1; + u32 rsrvd1 : 2; + u32 ack_in : 1; + u32 write : 1; + u32 read : 1; + u32 stop : 1; + u32 start : 1; + u32 rsrvd2 : 24; + } bf; + unsigned int wrd; +}; + +union ca_biw_ack { + struct biw_ack { + u32 al :1; + u32 biw_busy :1; + u32 ack_out :1; + u32 rsrvd1 :29; + } bf; + unsigned int wrd; +}; +#endif /* !__ASSEMBLER__*/ + +struct ca_i2c { + struct i2c_regs *regs; + unsigned int speed; +}; + +#define I2C_CMD_WT 0 +#define I2C_CMD_RD 1 + +#define BIW_CTRL_DONE BIT(0) +#define BIW_CTRL_ACK_IN BIT(3) +#define BIW_CTRL_WRITE BIT(4) +#define BIW_CTRL_READ BIT(5) +#define BIW_CTRL_STOP BIT(6) +#define BIW_CTRL_START BIT(7) + +#define I2C_BYTE_TO (CONFIG_SYS_HZ / 500) +#define I2C_STOPDET_TO (CONFIG_SYS_HZ / 500) +#define I2C_BYTE_TO_BB (10) + +#define IC_SPEED_MODE_STANDARD 1 +#define IC_SPEED_MODE_FAST 2 +#define IC_SPEED_MODE_MAX 3 + +#define I2C_MAX_SPEED 1000000 +#define I2C_FAST_SPEED 400000 +#define I2C_STANDARD_SPEED 100000 + +#endif /* __CA_I2C_H_ */ From patchwork Thu Feb 27 07:58:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Nemirovsky X-Patchwork-Id: 236932 List-Id: U-Boot discussion From: alex.nemirovsky at cortina-access.com (Alex Nemirovsky) Date: Wed, 26 Feb 2020 23:58:14 -0800 Subject: [PATCH v2 4/8] board: presidio-asic: Add I2C support In-Reply-To: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> References: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> Message-ID: <1582790298-5546-5-git-send-email-alex.nemirovsky@cortina-access.com> Add I2C board support for Cortina Access Presidio Engineering Board Signed-off-by: Alex Nemirovsky --- Changes in v2: None configs/cortina_presidio-asic-emmc_defconfig | 3 +++ 1 file changed, 3 insertions(+) diff --git a/configs/cortina_presidio-asic-emmc_defconfig b/configs/cortina_presidio-asic-emmc_defconfig index e10008a..e45e23c 100644 --- a/configs/cortina_presidio-asic-emmc_defconfig +++ b/configs/cortina_presidio-asic-emmc_defconfig @@ -10,6 +10,7 @@ CONFIG_SHOW_BOOT_PROGRESS=y CONFIG_BOOTDELAY=3 CONFIG_BOARD_EARLY_INIT_R=y CONFIG_SYS_PROMPT="G3#" +CONFIG_CMD_I2C=y CONFIG_CMD_MMC=y CONFIG_CMD_PART=y CONFIG_CMD_WDT=y @@ -24,6 +25,8 @@ CONFIG_DEFAULT_DEVICE_TREE="ca-presidio-engboard" # CONFIG_NET is not set CONFIG_DM=y CONFIG_CORTINA_GPIO=y +CONFIG_DM_I2C=y +CONFIG_SYS_I2C_CA=y CONFIG_DM_MMC=y CONFIG_MMC_DW=y CONFIG_MMC_DW_CORTINA=y From patchwork Thu Feb 27 07:58:15 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Nemirovsky X-Patchwork-Id: 236933 List-Id: U-Boot discussion From: alex.nemirovsky at cortina-access.com (Alex Nemirovsky) Date: Wed, 26 Feb 2020 23:58:15 -0800 Subject: [PATCH v2 5/8] led: led_cortina: Add CAxxx LED support In-Reply-To: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> References: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> Message-ID: <1582790298-5546-6-git-send-email-alex.nemirovsky@cortina-access.com> From: Jway Lin Add Cortina Access LED controller support for CAxxxx SOCs Signed-off-by: Jway Lin Signed-off-by: Alex Nemirovsky --- Changes in v2: None MAINTAINERS | 2 + drivers/led/Kconfig | 8 ++ drivers/led/Makefile | 1 + drivers/led/led_cortina.c | 308 ++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 319 insertions(+) create mode 100644 drivers/led/led_cortina.c diff --git a/MAINTAINERS b/MAINTAINERS index b147faa..24a2655 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -183,6 +183,7 @@ F: drivers/serial/serial_cortina.c F: drivers/mmc/ca_dw_mmc.c F: drivers/i2c/i2c-cortina.c F: drivers/i2c/i2c-cortina.h +F: drivers/led/led_cortina.c ARM/CZ.NIC TURRIS MOX SUPPORT M: Marek Behun @@ -676,6 +677,7 @@ F: drivers/serial/serial_cortina.c F: drivers/mmc/ca_dw_mmc.c F: drivers/i2c/i2c-cortina.c F: drivers/i2c/i2c-cortina.h +F: drivers/led/led_cortina.c MIPS MSCC M: Gregory CLEMENT diff --git a/drivers/led/Kconfig b/drivers/led/Kconfig index 6675934..cc87fbf 100644 --- a/drivers/led/Kconfig +++ b/drivers/led/Kconfig @@ -35,6 +35,14 @@ config LED_BCM6858 This option enables support for LEDs connected to the BCM6858 HW has blinking capabilities and up to 32 LEDs can be controlled. +config LED_CORTINA + bool "LED Support for Cortina Access CAxxxx SoCs" + depends on LED && (CORTINA_PLATFORM) + help + This option enables support for LEDs connected to the Cortina + Access CAxxxx SOCs. + + config LED_BLINK bool "Support LED blinking" depends on LED diff --git a/drivers/led/Makefile b/drivers/led/Makefile index 3654dd3..8e3ae7f 100644 --- a/drivers/led/Makefile +++ b/drivers/led/Makefile @@ -8,3 +8,4 @@ obj-$(CONFIG_LED_BCM6328) += led_bcm6328.o obj-$(CONFIG_LED_BCM6358) += led_bcm6358.o obj-$(CONFIG_LED_BCM6858) += led_bcm6858.o obj-$(CONFIG_$(SPL_)LED_GPIO) += led_gpio.o +obj-$(CONFIG_LED_CORTINA) += led_cortina.o diff --git a/drivers/led/led_cortina.c b/drivers/led/led_cortina.c new file mode 100644 index 0000000..53435e8 --- /dev/null +++ b/drivers/led/led_cortina.c @@ -0,0 +1,308 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/* + * Copyright (C) 2020 Cortina-Access + * Author: Jway Lin + * + */ + +#include +#include +#include +#include +#include +#include +#include + +#define CORTINA_LED_NUM 16 + +#define BIT(nr) (1UL << (nr)) + +#define cortina_LED_CONTROL 0x00 +#define cortina_LED_CONFIG_0 0x04 +#define cortina_LED_CONFIG_1 0x08 +#define cortina_LED_CONFIG_2 0x0c +#define cortina_LED_CONFIG_3 0x10 +#define cortina_LED_CONFIG_4 0x14 +#define cortina_LED_CONFIG_5 0x18 +#define cortina_LED_CONFIG_6 0x1c +#define cortina_LED_CONFIG_7 0x20 +#define cortina_LED_CONFIG_8 0x24 +#define cortina_LED_CONFIG_9 0x28 +#define cortina_LED_CONFIG_10 0x2c +#define cortina_LED_CONFIG_11 0x30 +#define cortina_LED_CONFIG_12 0x34 +#define cortina_LED_CONFIG_13 0x38 +#define cortina_LED_CONFIG_14 0x3c +#define cortina_LED_CONFIG_15 0x40 + +#define cortina_LED_MAX_HW_BLINK 127 +#define cortina_LED_MAX_COUNT CORTINA_LED_NUM +#define cortina_LED_MAX_PORT 8 + +/* LED_CONTROL fields */ +#define cortina_LED_BLINK_RATE1_OFFSET 0 +#define cortina_LED_BLINK_RATE1_MASK 0xFF +#define cortina_LED_BLINK_RATE2_OFFSET 8 +#define cortina_LED_BLINK_RATE2_MASK 0xFF +#define cortina_LED_CLK_TEST BIT(16) +#define cortina_LED_CLK_POLARITY BIT(17) +#define cortina_LED_CLK_TEST_MODE BIT(16) +#define cortina_LED_CLK_TEST_RX_TEST BIT(30) +#define cortina_LED_CLK_TEST_TX_TEST BIT(31) + +/* LED_CONFIG fields */ +#define cortina_LED_EVENT_ON_OFFSET 0 +#define cortina_LED_EVENT_ON_MASK 0x7 +#define cortina_LED_EVENT_BLINK_OFFSET 3 +#define cortina_LED_EVENT_BLINK_MASK 0x7 +#define cortina_LED_EVENT_OFF_OFFSET 6 +#define cortina_LED_EVENT_OFF_MASK 0x7 +#define cortina_LED_OFF_ON_OFFSET 9 +#define cortina_LED_OFF_ON_MASK 0x3 +#define cortina_LED_PORT_OFFSET 11 +#define cortina_LED_PORT_MASK 0x7 +#define cortina_LED_OFF_VAL BIT(14) +#define cortina_LED_SW_EVENT BIT(15) +#define cortina_LED_BLINK_SEL BIT(16) + +struct cortina_led_cfg { + void __iomem *regs; + spinlock_t *lock; /* protect LED resource access */ + int idx; + bool active_low; + + int off_event; + int blink_event; + int on_event; + int port; + int blink; + int enable; +}; + +struct cortina_led_top_cfg { + void __iomem *regs; + u16 blink_rate1; + u16 blink_rate2; +}; + +static struct cortina_led_top_cfg glb_led_ctrl; + +static void cortina_led_write(void __iomem *reg, unsigned long data) +{ + writel(data, reg); +} + +static unsigned long cortina_led_read(void __iomem *reg) +{ + return readl(reg); +} + +static enum led_state_t cortina_led_get_state(struct udevice *dev) +{ + struct cortina_led_cfg *priv = dev_get_priv(dev); + enum led_state_t state = LEDST_OFF; + u32 val; + + val = readl(priv->regs); + + if (val & cortina_LED_SW_EVENT) + state = LEDST_ON; + + return state; +} + +static int cortina_led_set_state(struct udevice *dev, enum led_state_t state) +{ + u32 val; + struct cortina_led_cfg *priv = dev_get_priv(dev); + + val = readl(priv->regs); + + switch (state) { + case LEDST_OFF: + val &= ~cortina_LED_SW_EVENT; + val &= ~(cortina_LED_OFF_ON_MASK << cortina_LED_OFF_ON_OFFSET); + val |= 0x3 << cortina_LED_OFF_ON_OFFSET; + cortina_led_write(priv->regs, val); + break; + case LEDST_ON: + val |= cortina_LED_SW_EVENT; + val &= ~(cortina_LED_OFF_ON_MASK << cortina_LED_OFF_ON_OFFSET); + val |= 0x1 << cortina_LED_OFF_ON_OFFSET; + cortina_led_write(priv->regs, val); + break; + case LEDST_TOGGLE: + if (cortina_led_get_state(dev) == LEDST_OFF) + return cortina_led_set_state(dev, LEDST_ON); + else + return cortina_led_set_state(dev, LEDST_OFF); + break; + + default: + return -EINVAL; + } + + return 0; +} + +static const struct led_ops cortina_led_ops = { + .get_state = cortina_led_get_state, + .set_state = cortina_led_set_state, +}; + +static int cortina_led_probe(struct udevice *dev) +{ + struct led_uc_plat *uc_plat = dev_get_uclass_platdata(dev); + void __iomem *regs; + u32 reg_value, val; + u16 rate1, rate2; + struct cortina_led_cfg *priv = dev_get_priv(dev); + unsigned int pin; + u32 blink, port, off_event, blink_event, on_event; + + /* Top-level LED node */ + if (!uc_plat->label) { + regs = dev_remap_addr(dev); + + if (!regs) + return -EINVAL; + + glb_led_ctrl.regs = regs; + + reg_value = 0; + reg_value |= cortina_LED_CLK_POLARITY; + + rate1 = dev_read_u32_default(dev, "cortina, blink_rate1", 256); + rate2 = dev_read_u32_default(dev, "cortina, blink_rate2", 512); + + val = rate1 / 16 - 1; + glb_led_ctrl.blink_rate1 = val > cortina_LED_MAX_HW_BLINK ? + cortina_LED_MAX_HW_BLINK : val; + reg_value |= (glb_led_ctrl.blink_rate1 & cortina_LED_BLINK_RATE1_MASK) + << cortina_LED_BLINK_RATE1_OFFSET; + + val = rate2 / 16 - 1; + glb_led_ctrl.blink_rate2 = val > cortina_LED_MAX_HW_BLINK ? + cortina_LED_MAX_HW_BLINK : val; + reg_value |= (glb_led_ctrl.blink_rate2 & cortina_LED_BLINK_RATE2_MASK) + << cortina_LED_BLINK_RATE2_OFFSET; + + cortina_led_write(glb_led_ctrl.regs, reg_value); + } else { + regs = dev_remap_addr(dev_get_parent(dev)); + + if (!regs) + return -EINVAL; + + pin = dev_read_u32_default(dev, "pin", cortina_LED_MAX_COUNT); + + if (pin >= cortina_LED_MAX_COUNT) + return -EINVAL; + + priv->regs = regs + 4 + (pin * 4); + + val = cortina_led_read(priv->regs); + + if (dev_read_bool(dev, "active-low")) { + priv->active_low = true; + val |= cortina_LED_OFF_VAL; + } else { + priv->active_low = false; + val &= ~cortina_LED_OFF_VAL; + } + + blink = dev_read_u32_default(dev, "blink-sel", 0); + + if (blink == 0) { + priv->blink = 0; + val &= ~cortina_LED_BLINK_SEL; + } else if (blink == 1) { + priv->blink = 1; + val |= cortina_LED_BLINK_SEL; + } + + //Todo : cortina_led_config(); + off_event = dev_read_u32_default(dev, "off-event", 3); + val &= ~(cortina_LED_EVENT_OFF_MASK << cortina_LED_EVENT_OFF_OFFSET); + if (off_event != 3) { + priv->off_event = off_event; + val |= BIT(off_event) << cortina_LED_EVENT_OFF_OFFSET; + } + + blink_event = dev_read_u32_default(dev, "blink-event", 3); + val &= ~(cortina_LED_EVENT_BLINK_MASK << + cortina_LED_EVENT_BLINK_OFFSET); + + if (blink_event != 3) { + priv->blink_event = blink_event; + val |= BIT(blink_event) << cortina_LED_EVENT_BLINK_OFFSET; + } + + on_event = dev_read_u32_default(dev, "on-event", 3); + val &= ~(cortina_LED_EVENT_ON_MASK << cortina_LED_EVENT_ON_OFFSET); + if (on_event != 3) { + priv->on_event = on_event; + val |= BIT(on_event) << cortina_LED_EVENT_ON_OFFSET; + } + + port = dev_read_u32_default(dev, "port", 0); + priv->port = port; + val &= ~(cortina_LED_PORT_MASK << cortina_LED_PORT_OFFSET); + val |= port << cortina_LED_PORT_OFFSET; + + priv->enable = 0; + + /* force off */ + val &= ~(cortina_LED_OFF_ON_MASK << cortina_LED_OFF_ON_OFFSET); + val |= 0x3 << cortina_LED_OFF_ON_OFFSET; + + cortina_led_write(priv->regs, val); + } + + return 0; +} + +static int cortina_led_bind(struct udevice *parent) +{ + ofnode node; + + dev_for_each_subnode(node, parent) { + struct led_uc_plat *uc_plat; + struct udevice *dev; + const char *label; + int ret; + + label = ofnode_read_string(node, "label"); + if (!label) { + debug("%s: node %s has no label\n", __func__, + ofnode_get_name(node)); + return -EINVAL; + } + + ret = device_bind_driver_to_node(parent, "ca-leds", + ofnode_get_name(node), + node, &dev); + if (ret) + return ret; + uc_plat = dev_get_uclass_platdata(dev); + uc_plat->label = label; + } + + return 0; +} + +static const struct udevice_id ca_led_ids[] = { + { .compatible = "cortina,ca-leds" }, + { /* sentinel */ } +}; + +U_BOOT_DRIVER(cortina_led) = { + .name = "ca-leds", + .id = UCLASS_LED, + .of_match = ca_led_ids, + .bind = cortina_led_bind, + .probe = cortina_led_probe, + .priv_auto_alloc_size = sizeof(struct cortina_led_cfg), + .ops = &cortina_led_ops, +}; From patchwork Thu Feb 27 07:58:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Nemirovsky X-Patchwork-Id: 236934 List-Id: U-Boot discussion From: alex.nemirovsky at cortina-access.com (Alex Nemirovsky) Date: Wed, 26 Feb 2020 23:58:16 -0800 Subject: [PATCH v2 6/8] board: presidio: add LED support In-Reply-To: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> References: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> Message-ID: <1582790298-5546-7-git-send-email-alex.nemirovsky@cortina-access.com> From: Jway Lin Add LED support for Cortina Access Presidio Engineering Board Signed-off-by: Jway Lin Signed-off-by: Alex Nemirovsky --- Changes in v2: None arch/arm/dts/ca-presidio-engboard.dts | 31 ++++++++++++++++++++++++++++ configs/cortina_presidio-asic-emmc_defconfig | 2 ++ 2 files changed, 33 insertions(+) diff --git a/arch/arm/dts/ca-presidio-engboard.dts b/arch/arm/dts/ca-presidio-engboard.dts index c03dacc..ae897e8 100644 --- a/arch/arm/dts/ca-presidio-engboard.dts +++ b/arch/arm/dts/ca-presidio-engboard.dts @@ -66,4 +66,35 @@ spi-max-frequency = <108000000>; }; }; + + leds: led-controller at f43200f0 { + compatible = "cortina,ca-leds"; + reg = <0x0 0xf43200f0 0x40>; + + cortina,blink_rate1 = <256>; + cortina,blink_rate2 = <512>; + + led at 0 { + pin = <0>; + active-low; + blink-sel =<0>; + port = <0>; + off-event = <0>; + label = "led0"; + }; + + led at 1 { + pin = <1>; + active-low; + blink-sel =<1>; + label = "led1"; + }; + + led at 2 { + pin = <2>; + active-low; + label = "led2"; + }; + + }; }; diff --git a/configs/cortina_presidio-asic-emmc_defconfig b/configs/cortina_presidio-asic-emmc_defconfig index e45e23c..3c6bd6b 100644 --- a/configs/cortina_presidio-asic-emmc_defconfig +++ b/configs/cortina_presidio-asic-emmc_defconfig @@ -27,6 +27,8 @@ CONFIG_DM=y CONFIG_CORTINA_GPIO=y CONFIG_DM_I2C=y CONFIG_SYS_I2C_CA=y +CONFIG_LED=y +CONFIG_LED_CORTINA=y CONFIG_DM_MMC=y CONFIG_MMC_DW=y CONFIG_MMC_DW_CORTINA=y From patchwork Thu Feb 27 07:58:17 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Nemirovsky X-Patchwork-Id: 236937 List-Id: U-Boot discussion From: alex.nemirovsky at cortina-access.com (Alex Nemirovsky) Date: Wed, 26 Feb 2020 23:58:17 -0800 Subject: [PATCH v2 7/8] spi: ca_sflash: Add CAxxxx SPI Flash Controller In-Reply-To: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> References: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> Message-ID: <1582790298-5546-8-git-send-email-alex.nemirovsky@cortina-access.com> From: Pengpeng Chen Add SPI Flash controller driver for Cortina Access CAxxxx SoCs Signed-off-by: Pengpeng Chen Signed-off-by: Alex Nemirovsky --- Changes in v2: None MAINTAINERS | 2 + drivers/spi/Kconfig | 8 + drivers/spi/Makefile | 1 + drivers/spi/ca_sflash.c | 575 ++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 586 insertions(+) create mode 100644 drivers/spi/ca_sflash.c diff --git a/MAINTAINERS b/MAINTAINERS index 24a2655..8509779 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -184,6 +184,7 @@ F: drivers/mmc/ca_dw_mmc.c F: drivers/i2c/i2c-cortina.c F: drivers/i2c/i2c-cortina.h F: drivers/led/led_cortina.c +F: drivers/spi/ca_sflash.c ARM/CZ.NIC TURRIS MOX SUPPORT M: Marek Behun @@ -678,6 +679,7 @@ F: drivers/mmc/ca_dw_mmc.c F: drivers/i2c/i2c-cortina.c F: drivers/i2c/i2c-cortina.h F: drivers/led/led_cortina.c +F: drivers/spi/ca_sflash.c MIPS MSCC M: Gregory CLEMENT diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 4166c61..8a244f1 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -106,6 +106,14 @@ config BCMSTB_SPI be used to access the SPI flash on platforms embedding this Broadcom SPI core. +config CORTINA_SFLASH + bool "Cortina-Access Serial Flash controller driver" + depends on DM_SPI && SPI_MEM + help + Enable the Cortina-Access Serial Flash controller driver. This driver + can be used to access the SPI NOR/NAND flash on platforms embedding this + Cortina-Access IP core. + config CADENCE_QSPI bool "Cadence QSPI driver" help diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile index 52462e1..32b98b4 100644 --- a/drivers/spi/Makefile +++ b/drivers/spi/Makefile @@ -25,6 +25,7 @@ obj-$(CONFIG_BCM63XX_SPI) += bcm63xx_spi.o obj-$(CONFIG_BCMSTB_SPI) += bcmstb_spi.o obj-$(CONFIG_CADENCE_QSPI) += cadence_qspi.o cadence_qspi_apb.o obj-$(CONFIG_CF_SPI) += cf_spi.o +obj-$(CONFIG_CORTINA_SFLASH) += ca_sflash.o obj-$(CONFIG_DAVINCI_SPI) += davinci_spi.o obj-$(CONFIG_DESIGNWARE_SPI) += designware_spi.o obj-$(CONFIG_EXYNOS_SPI) += exynos_spi.o diff --git a/drivers/spi/ca_sflash.c b/drivers/spi/ca_sflash.c new file mode 100644 index 0000000..293eeb5 --- /dev/null +++ b/drivers/spi/ca_sflash.c @@ -0,0 +1,575 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Driver for Cortina SPI-FLASH Controller + * + * Copyright (C) 2020 Cortina Access Inc. All Rights Reserved. + * + * Author: PengPeng Chen + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; + +struct ca_sflash_regs { + u32 idr; /* 0x00:Flash word ID Register */ + u32 tc; /* 0x04:Flash Timeout Counter Register */ + u32 sr; /* 0x08:Flash Status Register */ + u32 tr; /* 0x0C:Flash Type Register */ + u32 asr; /* 0x10:Flash ACCESS START/BUSY Register */ + u32 isr; /* 0x14:Flash Interrupt Status Register */ + u32 imr; /* 0x18:Flash Interrupt Mask Register */ + u32 fcr; /* 0x1C:NAND Flash FIFO Control Register */ + u32 ffsr; /* 0x20:Flash FIFO Status Register */ + u32 ffar; /* 0x24:Flash FIFO ADDRESS Register */ + u32 ffmar; /* 0x28:Flash FIFO MATCHING ADDRESS Register */ + u32 ffdr; /* 0x2C:Flash FIFO Data Register */ + u32 ar; /* 0x30:Serial Flash Access Register */ + u32 ear; /* 0x34:Serial Flash Extend Access Register */ + u32 adr; /* 0x38:Serial Flash ADdress Register */ + u32 dr; /* 0x3C:Serial Flash Data Register */ + u32 tmr; /* 0x40:Serial Flash Timing Register */ +}; + +/* + * FLASH_TYPE + */ +#define CA_FLASH_TR_PIN BIT(15) +#define CA_FLASH_TR_TYPE_MASK GENMASK(14, 12) +#define CA_FLASH_TR_TYPE(tp) (((tp) << 12) & CA_FLASH_TR_TYPE_MASK) +#define CA_FLASH_TR_WIDTH BIT(11) +#define CA_FLASH_TR_SIZE_MASK GENMASK(10, 9) +#define CA_FLASH_TR_SIZE(sz) (((sz) << 9) & CA_FLASH_TR_SIZE_MASK) + +/* + * FLASH_FLASH_ACCESS_START + */ +#define CA_FLASH_ASR_IND_START_EN BIT(1) +#define CA_FLASH_ASR_DMA_START_EN BIT(3) +#define CA_FLASH_ASR_WR_ACCESS_EN BIT(9) + +/* + * FLASH_FLASH_INTERRUPT + */ +#define CA_FLASH_ISR_REG_IRQ BIT(1) +#define CA_FLASH_ISR_FIFO_IRQ BIT(2) + +/* + * FLASH_SF_ACCESS + */ +#define CA_SF_AR_OPCODE_MASK GENMASK(7, 0) +#define CA_SF_AR_OPCODE(op) ((op) << 0) & CA_SF_AR_OPCODE_MASK) +#define CA_SF_AR_ACCODE_MASK GENMASK(11, 8) +#define CA_SF_AR_ACCODE(ac) (((ac) << 8) & CA_SF_AR_ACCODE_MASK) +#define CA_SF_AR_FORCE_TERM BIT(12) +#define CA_SF_AR_FORCE_BURST BIT(13) +#define CA_SF_AR_AUTO_MODE_EN BIT(15) +#define CA_SF_AR_CHIP_EN_ALT BIT(16) +#define CA_SF_AR_HI_SPEED_RD BIT(17) +#define CA_SF_AR_MIO_INF_DC BIT(24) +#define CA_SF_AR_MIO_INF_AC BIT(25) +#define CA_SF_AR_MIO_INF_CC BIT(26) +#define CA_SF_AR_DDR_MASK GENMASK(29, 28) +#define CA_SF_AR_DDR(ddr) (((ddr) << 28) & CA_SF_AR_DDR_MASK) +#define CA_SF_AR_MIO_INF_MASK GENMASK(31, 30) +#define CA_SF_AR_MIO_INF(io) (((io) << 30) & CA_SF_AR_MIO_INF_MASK) + +/* + * FLASH_SF_EXT_ACCESS + */ +#define CA_SF_EAR_OPCODE_MASK GENMASK(7, 0) +#define CA_SF_EAR_OPCODE(op) (((op) << 0) & CA_SF_EAR_OPCODE_MASK) +#define CA_SF_EAR_DATA_CNT_MASK GENMASK(20, 8) +#define CA_SF_EAR_DATA_CNT(cnt) (((cnt) << 8) & CA_SF_EAR_DATA_CNT_MASK) +#define CA_SF_EAR_DATA_CNT_MAX (4096) +#define CA_SF_EAR_ADDR_CNT_MASK GENMASK(23, 21) +#define CA_SF_EAR_ADDR_CNT(cnt) (((cnt) << 21) & CA_SF_EAR_ADDR_CNT_MASK) +#define CA_SF_EAR_ADDR_CNT_MAX (5) +#define CA_SF_EAR_DUMY_CNT_MASK GENMASK(29, 24) +#define CA_SF_EAR_DUMY_CNT(cnt) (((cnt) << 24) & CA_SF_EAR_DUMY_CNT_MASK) +#define CA_SF_EAR_DUMY_CNT_MAX (32) +#define CA_SF_EAR_DRD_CMD_EN BIT(31) + +/* + * FLASH_SF_ADDRESS + */ +#define CA_SF_ADR_REG_MASK GENMASK(31, 0) +#define CA_SF_ADR_REG(addr) (((addr) << 0) & CA_SF_ADR_REG_MASK) + +/* + * FLASH_SF_DATA + */ +#define CA_SF_DR_REG_MASK GENMASK(31, 0) +#define CA_SF_DR_REG(addr) (((addr) << 0) & CA_SF_DR_REG_MASK) + +/* + * FLASH_SF_TIMING + */ +#define CA_SF_TMR_IDLE_MASK GENMASK(7, 0) +#define CA_SF_TMR_IDLE(idle) (((idle) << 0) & CA_SF_TMR_IDLE_MASK) +#define CA_SF_TMR_HOLD_MASK GENMASK(15, 8) +#define CA_SF_TMR_HOLD(hold) (((hold) << 8) & CA_SF_TMR_HOLD_MASK) +#define CA_SF_TMR_SETUP_MASK GENMASK(23, 16) +#define CA_SF_TMR_SETUP(setup) (((setup) << 16) & CA_SF_TMR_SETUP_MASK) +#define CA_SF_TMR_CLK_MASK GENMASK(26, 24) +#define CA_SF_TMR_CLK(clk) (((clk) << 24) & CA_SF_TMR_CLK_MASK) + +#define CA_SFLASH_IND_WRITE 0 +#define CA_SFLASH_IND_READ 1 +#define CA_SFLASH_MEM_MAP 3 +#define CA_SFLASH_FIFO_TIMEOUT_US 30000 +#define CA_SFLASH_BUSY_TIMEOUT_US 40000 + +#define CA_SF_AC_OPCODE 0x00 +#define CA_SF_AC_OPCODE_1_DATA 0x01 +#define CA_SF_AC_OPCODE_2_DATA 0x02 +#define CA_SF_AC_OPCODE_3_DATA 0x03 +#define CA_SF_AC_OPCODE_4_DATA 0x04 +#define CA_SF_AC_OPCODE_3_ADDR 0x05 +#define CA_SF_AC_OPCODE_4_ADDR (CA_SF_AC_OPCODE_3_ADDR) +#define CA_SF_AC_OPCODE_3_ADDR_1_DATA 0x06 +#define CA_SF_AC_OPCODE_4_ADDR_1_DATA (CA_SF_AC_OPCODE_3_ADDR_1_DATA << 2) +#define CA_SF_AC_OPCODE_3_ADDR_2_DATA 0x07 +#define CA_SF_AC_OPCODE_4_ADDR_2_DATA (CA_SF_AC_OPCODE_3_ADDR_2_DATA << 2) +#define CA_SF_AC_OPCODE_3_ADDR_3_DATA 0x08 +#define CA_SF_AC_OPCODE_4_ADDR_3_DATA (CA_SF_AC_OPCODE_3_ADDR_3_DATA << 2) +#define CA_SF_AC_OPCODE_3_ADDR_4_DATA 0x09 +#define CA_SF_AC_OPCODE_4_ADDR_4_DATA (CA_SF_AC_OPCODE_3_ADDR_4_DATA << 2) +#define CA_SF_AC_OPCODE_3_ADDR_X_1_DATA 0x0A +#define CA_SF_AC_OPCODE_4_ADDR_X_1_DATA (CA_SF_AC_OPCODE_3_ADDR_X_1_DATA << 2) +#define CA_SF_AC_OPCODE_3_ADDR_X_2_DATA 0x0B +#define CA_SF_AC_OPCODE_4_ADDR_X_2_DATA (CA_SF_AC_OPCODE_3_ADDR_X_2_DATA << 2) +#define CA_SF_AC_OPCODE_3_ADDR_X_3_DATA 0x0C +#define CA_SF_AC_OPCODE_4_ADDR_X_3_DATA (CA_SF_AC_OPCODE_3_ADDR_X_3_DATA << 2) +#define CA_SF_AC_OPCODE_3_ADDR_X_4_DATA 0x0D +#define CA_SF_AC_OPCODE_4_ADDR_X_4_DATA (CA_SF_AC_OPCODE_3_ADDR_X_4_DATA << 2) +#define CA_SF_AC_OPCODE_3_ADDR_4X_1_DATA 0x0E +#define CA_SF_AC_OPCODE_4_ADDR_4X_1_DATA (CA_SF_AC_OPCODE_3_ADDR_4X_1_DATA << 2) +#define CA_SF_AC_OPCODE_EXTEND 0x0F + +#define CA_SF_ACCESS_MIO_SINGLE 0 +#define CA_SF_ACCESS_MIO_DUAL 1 +#define CA_SF_ACCESS_MIO_QUARD 2 + +enum access_type { + RD_ACCESS, + WR_ACCESS, +}; + +struct ca_sflash_priv { + struct ca_sflash_regs *regs; + u8 rx_width; + u8 tx_width; +}; + +/* + * This function doesn't do anything except help with debugging + */ +static int ca_sflash_claim_bus(struct udevice *dev) +{ + debug("%s:\n", __func__); + return 0; +} + +static int ca_sflash_release_bus(struct udevice *dev) +{ + debug("%s:\n", __func__); + return 0; +} + +static int ca_sflash_set_speed(struct udevice *dev, uint speed) +{ + debug("%s:\n", __func__); + return 0; +} + +static int ca_sflash_set_mode(struct udevice *dev, uint mode) +{ + struct ca_sflash_priv *priv = dev_get_priv(dev); + + if (mode & SPI_RX_QUAD) + priv->rx_width = 4; + else if (mode & SPI_RX_DUAL) + priv->rx_width = 2; + else + priv->rx_width = 1; + + if (mode & SPI_TX_QUAD) + priv->tx_width = 4; + else if (mode & SPI_TX_DUAL) + priv->tx_width = 2; + else + priv->tx_width = 1; + + debug("%s: mode=%d, rx_width=%d, tx_width=%d\n", + __func__, mode, priv->rx_width, priv->tx_width); + + return 0; +} + +static int _ca_sflash_wait_for_not_busy(struct ca_sflash_priv *priv) +{ + u32 asr; + + if (readl_poll_timeout(&priv->regs->asr, asr, + !(asr & CA_FLASH_ASR_IND_START_EN), + CA_SFLASH_BUSY_TIMEOUT_US)) { + pr_err("busy timeout (stat:%#x)\n", asr); + return -1; + } + + return 0; +} + +static int _ca_sflash_wait_cmd(struct ca_sflash_priv *priv, + enum access_type type) +{ + if (type == WR_ACCESS) { + /* Enable write access and start the sflash indirect access */ + clrsetbits_le32(&priv->regs->asr, GENMASK(31, 0), + CA_FLASH_ASR_WR_ACCESS_EN + | CA_FLASH_ASR_IND_START_EN); + } else if (type == RD_ACCESS) { + /* Start the sflash indirect access */ + clrsetbits_le32(&priv->regs->asr, GENMASK(31, 0), + CA_FLASH_ASR_IND_START_EN); + } else { + printf("%s: !error access type.\n", __func__); + return -1; + } + + /* Wait til the action(rd/wr) completed */ + return _ca_sflash_wait_for_not_busy(priv); +} + +static int _ca_sflash_read(struct ca_sflash_priv *priv, + u8 *buf, unsigned int data_len) +{ + u32 reg_data; + int len; + + len = data_len; + while (len >= 4) { + if (_ca_sflash_wait_cmd(priv, RD_ACCESS)) + return -1; + reg_data = readl(&priv->regs->dr); + *buf++ = reg_data & 0xFF; + *buf++ = (reg_data >> 8) & 0xFF; + *buf++ = (reg_data >> 16) & 0xFF; + *buf++ = (reg_data >> 24) & 0xFF; + len -= 4; + debug("%s: reg_data=%#08x\n", + __func__, reg_data); + } + + if (len > 0) { + if (_ca_sflash_wait_cmd(priv, RD_ACCESS)) + return -1; + reg_data = readl(&priv->regs->dr); + debug("%s: reg_data=%#08x\n", + __func__, reg_data); + } + + switch (len) { + case 3: + *buf++ = reg_data & 0xFF; + *buf++ = (reg_data >> 8) & 0xFF; + *buf++ = (reg_data >> 16) & 0xFF; + break; + case 2: + *buf++ = reg_data & 0xFF; + *buf++ = (reg_data >> 8) & 0xFF; + break; + case 1: + *buf++ = reg_data & 0xFF; + break; + case 0: + break; + default: + printf("%s: error data_length %d!\n", __func__, len); + } + + return 0; +} + +static int _ca_sflash_mio_set(struct ca_sflash_priv *priv, + u8 width) +{ + if (width == 4) { + setbits_le32(&priv->regs->ar, + CA_SF_AR_MIO_INF_DC + | CA_SF_AR_MIO_INF(CA_SF_ACCESS_MIO_QUARD) + | CA_SF_AR_FORCE_BURST); + } else if (width == 2) { + setbits_le32(&priv->regs->ar, + CA_SF_AR_MIO_INF_DC + | CA_SF_AR_MIO_INF(CA_SF_ACCESS_MIO_DUAL) + | CA_SF_AR_FORCE_BURST); + } else if (width == 1) { + setbits_le32(&priv->regs->ar, + CA_SF_AR_MIO_INF(CA_SF_ACCESS_MIO_SINGLE) + | CA_SF_AR_FORCE_BURST); + } else { + printf("%s: error rx/tx width %d!\n", __func__, width); + return -1; + } + + return 0; +} + +static int _ca_sflash_write(struct ca_sflash_priv *priv, + u8 *buf, unsigned int data_len) +{ + u32 reg_data; + int len; + + len = data_len; + while (len > 0) { + reg_data = buf[0] + | (buf[1] << 8) + | (buf[2] << 16) + | (buf[3] << 24); + + debug("%s: reg_data=%#08x\n", + __func__, reg_data); + /* Fill data */ + clrsetbits_le32(&priv->regs->dr, GENMASK(31, 0), reg_data); + + if (_ca_sflash_wait_cmd(priv, WR_ACCESS)) + return -1; + + len -= 4; + buf += 4; + } + + return 0; +} + +static int _ca_sflash_access_data(struct ca_sflash_priv *priv, + struct spi_mem_op *op) +{ + int total_cnt; + unsigned int len; + unsigned int data_cnt = op->data.nbytes; + u64 addr_offset = op->addr.val; + u8 addr_cnt = op->addr.nbytes; + u8 *data_buf = NULL; + u8 *buf = NULL; + + if (op->data.dir == SPI_MEM_DATA_IN) + data_buf = (u8 *)op->data.buf.in; + else + data_buf = (u8 *)op->data.buf.out; + + if (data_cnt > CA_SF_EAR_DATA_CNT_MAX) + buf = malloc(CA_SF_EAR_DATA_CNT_MAX); + else + buf = malloc(data_cnt); + + total_cnt = data_cnt; + while (total_cnt > 0) { + /* Fill address */ + if (addr_cnt > 0) + clrsetbits_le32(&priv->regs->adr, + GENMASK(31, 0), (u32)addr_offset); + + if (total_cnt > CA_SF_EAR_DATA_CNT_MAX) { + len = CA_SF_EAR_DATA_CNT_MAX; + addr_offset += CA_SF_EAR_DATA_CNT_MAX; + /* Clear start bit before next bulk read */ + clrbits_le32(&priv->regs->asr, GENMASK(31, 0)); + } else { + len = total_cnt; + } + + memset(buf, 0, len); + if (op->data.dir == SPI_MEM_DATA_IN) { + if (_ca_sflash_read(priv, buf, len)) + break; + memcpy(data_buf, buf, len); + } else { + memcpy(buf, data_buf, len); + if (_ca_sflash_write(priv, buf, len)) + break; + } + + total_cnt -= len; + data_buf += len; + } + if (buf) + free(buf); + + return total_cnt > 0 ? -1 : 0; +} + +static int _ca_sflash_issue_cmd(struct ca_sflash_priv *priv, + struct spi_mem_op *op, u8 opcode) +{ + u8 dummy_cnt = op->dummy.nbytes; + u8 addr_cnt = op->addr.nbytes; + u8 mio_width; + unsigned int data_cnt = op->data.nbytes; + u64 addr_offset = op->addr.val; + + /* Set the access register */ + clrsetbits_le32(&priv->regs->ar, + GENMASK(31, 0), CA_SF_AR_ACCODE(opcode)); + + if (opcode == CA_SF_AC_OPCODE_EXTEND) { /* read_data, write_data */ + if (data_cnt > 6) { + if (op->data.dir == SPI_MEM_DATA_IN) + mio_width = priv->rx_width; + else + mio_width = priv->tx_width; + if (_ca_sflash_mio_set(priv, mio_width)) + return -1; + } + debug("%s: FLASH ACCESS reg=%#08x\n", + __func__, readl(&priv->regs->ar)); + + /* Use command in extend_access register */ + clrsetbits_le32(&priv->regs->ear, + GENMASK(31, 0), CA_SF_EAR_OPCODE(op->cmd.opcode) + | CA_SF_EAR_DUMY_CNT(dummy_cnt * 8 - 1) + | CA_SF_EAR_ADDR_CNT(addr_cnt - 1) + | CA_SF_EAR_DATA_CNT(4 - 1) + | CA_SF_EAR_DRD_CMD_EN); + debug("%s: FLASH EXT ACCESS reg=%#08x\n", + __func__, readl(&priv->regs->ear)); + + if (_ca_sflash_access_data(priv, op)) + return -1; + } else { /* reset_op, wr_enable, wr_disable */ + setbits_le32(&priv->regs->ar, CA_SF_AR_OPCODE(op->cmd.opcode)); + debug("%s: FLASH ACCESS reg=%#08x\n", + __func__, readl(&priv->regs->ar)); + + if (opcode == CA_SF_AC_OPCODE_4_ADDR) { /* erase_op */ + /* Configure address length */ + if (addr_cnt > 3) /* 4 Bytes address */ + setbits_le32(&priv->regs->tr, + CA_FLASH_TR_SIZE(2)); + else /* 3 Bytes address */ + clrbits_le32(&priv->regs->tr, + CA_FLASH_TR_SIZE_MASK); + + /* Fill address */ + if (addr_cnt > 0) + clrsetbits_le32(&priv->regs->adr, + GENMASK(31, 0), + (u32)addr_offset); + } + + if (_ca_sflash_wait_cmd(priv, RD_ACCESS)) + return -1; + } + /* elapse 10us before issuing any other command */ + udelay(10); + + return 0; +} + +static int ca_sflash_exec_op(struct spi_slave *slave, + const struct spi_mem_op *op) +{ + struct ca_sflash_priv *priv = dev_get_priv(slave->dev->parent); + u8 opcode; + + debug("%s: cmd:%#02x addr.val:%#llx addr.len:%#x data.len:%#x data.dir:%#x\n", + __func__, op->cmd.opcode, op->addr.val, + op->addr.nbytes, op->data.nbytes, op->data.dir); + + if (op->data.nbytes == 0 && op->addr.nbytes == 0) { + opcode = CA_SF_AC_OPCODE; + } else if { (op->data.nbytes == 0 && op->addr.nbytes > 0) { + opcode = CA_SF_AC_OPCODE_4_ADDR; + } else if { (op->data.nbytes > 0) { + opcode = CA_SF_AC_OPCODE_EXTEND; + } else { + printf("%s: can't support cmd.opcode:(%#02x) type currently!\n", + __func__, op->cmd.opcode); + return -1; + } + + return _ca_sflash_issue_cmd(priv, (struct spi_mem_op *)op, opcode); +} + +static void ca_sflash_init(struct ca_sflash_priv *priv) +{ + /* Set FLASH_TYPE as serial flash, value: 0x0400*/ + clrsetbits_le32(&priv->regs->tr, + GENMASK(31, 0), CA_FLASH_TR_SIZE(2)); + debug("%s: FLASH_TYPE reg=%#x\n", + __func__, readl(&priv->regs->tr)); + + /* Minimize flash timing, value: 0x07010101 */ + clrsetbits_le32(&priv->regs->tmr, + GENMASK(31, 0), + CA_SF_TMR_CLK(0x07) + | CA_SF_TMR_SETUP(0x01) + | CA_SF_TMR_HOLD(0x01) + | CA_SF_TMR_IDLE(0x01)); + debug("%s: FLASH_TIMING reg=%#x\n", + __func__, readl(&priv->regs->tmr)); +} + +static int ca_sflash_probe(struct udevice *dev) +{ + struct ca_sflash_priv *priv = dev_get_priv(dev); + struct resource res; + int ret; + + /* Map the registers */ + ret = dev_read_resource_byname(dev, "sflash-regs", &res); + if (ret) { + dev_err(dev, "can't get regs base addresses(ret = %d)!\n", ret); + return ret; + } + priv->regs = devm_ioremap(dev, res.start, resource_size(&res)); + if (IS_ERR(priv->regs)) + return PTR_ERR(priv->regs); + + ca_sflash_init(priv); + + printf("SFLASH: Controller probed ready\n"); + return 0; +} + +static const struct spi_controller_mem_ops ca_sflash_mem_ops = { + .exec_op = ca_sflash_exec_op, +}; + +static const struct dm_spi_ops ca_sflash_ops = { + .claim_bus = ca_sflash_claim_bus, + .release_bus = ca_sflash_release_bus, + .set_speed = ca_sflash_set_speed, + .set_mode = ca_sflash_set_mode, + .mem_ops = &ca_sflash_mem_ops, +}; + +static const struct udevice_id ca_sflash_ids[] = { + {.compatible = "cortina,ca-sflash"}, + {} +}; + +U_BOOT_DRIVER(ca_sflash) = { + .name = "ca_sflash", + .id = UCLASS_SPI, + .of_match = ca_sflash_ids, + .ops = &ca_sflash_ops, + .priv_auto_alloc_size = sizeof(struct ca_sflash_priv), + .probe = ca_sflash_probe, +}; From patchwork Thu Feb 27 07:58:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Nemirovsky X-Patchwork-Id: 236936 List-Id: U-Boot discussion From: alex.nemirovsky at cortina-access.com (Alex Nemirovsky) Date: Wed, 26 Feb 2020 23:58:18 -0800 Subject: [PATCH v2 8/8] board: presidio-asic: Add SPI NAND and NOR support In-Reply-To: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> References: <1582790298-5546-1-git-send-email-alex.nemirovsky@cortina-access.com> Message-ID: <1582790298-5546-9-git-send-email-alex.nemirovsky@cortina-access.com> Add SPI NAND and NOR support for Cortina Access Presidio Engineering Board Signed-off-by: Alex Nemirovsky --- Changes in v2: None arch/arm/dts/ca-presidio-engboard.dts | 8 ++-- board/cortina/presidio-asic/presidio.c | 16 ++++++- configs/cortina_presidio-asic-spi-nand_defconfig | 48 +++++++++++++++++++ configs/cortina_presidio-asic-spi-nor_defconfig | 59 ++++++++++++++++++++++++ 4 files changed, 125 insertions(+), 6 deletions(-) create mode 100644 configs/cortina_presidio-asic-spi-nand_defconfig create mode 100644 configs/cortina_presidio-asic-spi-nor_defconfig diff --git a/arch/arm/dts/ca-presidio-engboard.dts b/arch/arm/dts/ca-presidio-engboard.dts index ae897e8..8c73eb6 100644 --- a/arch/arm/dts/ca-presidio-engboard.dts +++ b/arch/arm/dts/ca-presidio-engboard.dts @@ -55,15 +55,13 @@ }; sflash: sflash-controller at f4324000 { - #address-cells = <2>; - #size-cells = <1>; compatible = "cortina,ca-sflash"; reg = <0x0 0xf4324000 0x50>; reg-names = "sflash-regs"; flash at 0 { - compatible = "jedec,spi-nor"; - spi-rx-bus-width = <1>; - spi-max-frequency = <108000000>; + compatible = "spi-nand", "jedec,spi-nor"; + spi-rx-bus-width = <4>; + spi-tx-bus-width = <4>; }; }; diff --git a/board/cortina/presidio-asic/presidio.c b/board/cortina/presidio-asic/presidio.c index b4fa01f..d547b60 100644 --- a/board/cortina/presidio-asic/presidio.c +++ b/board/cortina/presidio-asic/presidio.c @@ -14,7 +14,7 @@ #include #include #include - +#include DECLARE_GLOBAL_DATA_PTR; #define CA_PERIPH_BASE 0xE0000000UL @@ -70,9 +70,23 @@ static noinline int invoke_psci_fn_smc(u64 function_id, u64 arg0, u64 arg1, return function_id; } +#ifdef CONFIG_CORTINA_SFLASH +static int init_sflash(void) +{ + struct udevice *dev; + + uclass_first_device(UCLASS_SPI, &dev); + + return 0; +} +#endif + int board_early_init_r(void) { dcache_disable(); +#ifdef CONFIG_CORTINA_SFLASH + init_sflash(); +#endif return 0; } diff --git a/configs/cortina_presidio-asic-spi-nand_defconfig b/configs/cortina_presidio-asic-spi-nand_defconfig new file mode 100644 index 0000000..515ad22 --- /dev/null +++ b/configs/cortina_presidio-asic-spi-nand_defconfig @@ -0,0 +1,48 @@ +CONFIG_ARM=y +# CONFIG_SYS_ARCH_TIMER is not set +CONFIG_TARGET_PRESIDIO_ASIC=y +CONFIG_SYS_TEXT_BASE=0x04000000 +CONFIG_ENV_SIZE=0x20000 +CONFIG_DM_GPIO=y +CONFIG_NR_DRAM_BANKS=1 +CONFIG_IDENT_STRING="Presidio-SoC" +CONFIG_SHOW_BOOT_PROGRESS=y +CONFIG_BOOTDELAY=3 +CONFIG_LOGLEVEL=7 +CONFIG_BOARD_EARLY_INIT_R=y +CONFIG_SYS_PROMPT="G3#" +CONFIG_CMD_I2C=y +CONFIG_CMD_MMC=y +CONFIG_CMD_MTD=y +CONFIG_CMD_PART=y +CONFIG_CMD_SF_TEST=y +CONFIG_CMD_SPI=y +CONFIG_CMD_WDT=y +CONFIG_CMD_CACHE=y +CONFIG_CMD_TIMER=y +CONFIG_CMD_SMC=y +CONFIG_CMD_EXT2=y +CONFIG_CMD_EXT4=y +CONFIG_CMD_MTDPARTS=y +CONFIG_OF_CONTROL=y +CONFIG_OF_LIVE=y +CONFIG_DEFAULT_DEVICE_TREE="ca-presidio-engboard" +# CONFIG_NET is not set +CONFIG_DM=y +CONFIG_CORTINA_GPIO=y +CONFIG_DM_I2C=y +CONFIG_SYS_I2C_CA=y +CONFIG_DM_MMC=y +CONFIG_MMC_DW=y +CONFIG_MMC_DW_CORTINA=y +CONFIG_MTD=y +CONFIG_DM_MTD=y +CONFIG_MTD_SPI_NAND=y +CONFIG_DM_SPI_FLASH=y +CONFIG_DM_SERIAL=y +CONFIG_CORTINA_UART=y +CONFIG_SPI=y +CONFIG_DM_SPI=y +CONFIG_CORTINA_SFLASH=y +CONFIG_WDT=y +CONFIG_WDT_CORTINA=y diff --git a/configs/cortina_presidio-asic-spi-nor_defconfig b/configs/cortina_presidio-asic-spi-nor_defconfig new file mode 100644 index 0000000..d7ecec3 --- /dev/null +++ b/configs/cortina_presidio-asic-spi-nor_defconfig @@ -0,0 +1,59 @@ +CONFIG_ARM=y +# CONFIG_SYS_ARCH_TIMER is not set +CONFIG_TARGET_PRESIDIO_ASIC=y +CONFIG_SYS_TEXT_BASE=0x04000000 +CONFIG_ENV_SIZE=0x20000 +CONFIG_DM_GPIO=y +CONFIG_NR_DRAM_BANKS=1 +CONFIG_IDENT_STRING="Presidio-SoC" +CONFIG_SHOW_BOOT_PROGRESS=y +CONFIG_BOOTDELAY=3 +CONFIG_BOARD_EARLY_INIT_R=y +CONFIG_SYS_PROMPT="G3#" +CONFIG_CMD_I2C=y +CONFIG_CMD_MMC=y +CONFIG_CMD_MTD=y +CONFIG_CMD_PART=y +CONFIG_CMD_SF_TEST=y +CONFIG_CMD_SPI=y +CONFIG_CMD_WDT=y +CONFIG_CMD_CACHE=y +CONFIG_CMD_TIMER=y +CONFIG_CMD_SMC=y +CONFIG_CMD_EXT2=y +CONFIG_CMD_EXT4=y +CONFIG_CMD_MTDPARTS=y +CONFIG_OF_CONTROL=y +CONFIG_OF_LIVE=y +CONFIG_DEFAULT_DEVICE_TREE="ca-presidio-engboard" +# CONFIG_NET is not set +CONFIG_DM=y +CONFIG_CORTINA_GPIO=y +CONFIG_DM_I2C=y +CONFIG_SYS_I2C_CA=y +CONFIG_LED=y +CONFIG_LED_CORTINA=y +CONFIG_DM_MMC=y +CONFIG_MMC_DW=y +CONFIG_MMC_DW_CORTINA=y +CONFIG_MTD=y +CONFIG_DM_MTD=y +CONFIG_DM_SPI_FLASH=y +CONFIG_SPI_FLASH_ATMEL=y +CONFIG_SPI_FLASH_EON=y +CONFIG_SPI_FLASH_GIGADEVICE=y +CONFIG_SPI_FLASH_ISSI=y +CONFIG_SPI_FLASH_MACRONIX=y +CONFIG_SPI_FLASH_SPANSION=y +CONFIG_SPI_FLASH_STMICRO=y +CONFIG_SPI_FLASH_SST=y +CONFIG_SPI_FLASH_WINBOND=y +CONFIG_SPI_FLASH_XMC=y +CONFIG_SPI_FLASH_MTD=y +CONFIG_DM_SERIAL=y +CONFIG_CORTINA_UART=y +CONFIG_SPI=y +CONFIG_DM_SPI=y +CONFIG_CORTINA_SFLASH=y +CONFIG_WDT=y +CONFIG_WDT_CORTINA=y