From caf940dcc880b777365e35294ab757609fc9ac5a Mon Sep 17 00:00:00 2001 From: Nitin Garg Date: Tue, 27 May 2014 17:59:14 -0500 Subject: ENGR00315499-11 ARM:imx6 Change static environment SD/MMC storage to dynamic imx6 boards (sabresd, sabreauto, arm2 and slevk) have multiple SD/MMC ports to boot. But current uboot hard code the SD/MMC port for environment variables storage. So if customer changes a port without modifying the configuration "CONFIG_SYS_MMC_ENV_DEV", error will issue at saving and loading environment. Implement a mechanism to detect SD/MMC port from SRC SMBR register, and override the default "mmc_get_env_devno". The "board_late_mmc_env_init" is used to set "mmcdev" when booting from SD/MMC port. Finally after booting from SD/MMC, the environment storage device and "mmcdev" are both set to current SD/MMC port. Customers don't need to re-build the image if booting from different SD/MMC port. This patch also adds SD1 and SD3 support to imx6slevk BSP, and adds support for sabreauto SD1 slot on base board. Signed-off-by: Ye.Li Signed-off-by: Nitin Garg --- board/freescale/mx6slevk/mx6slevk.c | 217 +++++++++++++++++++++++++++++++++++- 1 file changed, 211 insertions(+), 6 deletions(-) (limited to 'board/freescale/mx6slevk/mx6slevk.c') diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c index 6b194a3..7ddd553 100644 --- a/board/freescale/mx6slevk/mx6slevk.c +++ b/board/freescale/mx6slevk/mx6slevk.c @@ -59,6 +59,23 @@ static iomux_v3_cfg_t const uart1_pads[] = { MX6_PAD_UART1_RXD__UART1_RXD | MUX_PAD_CTRL(UART_PAD_CTRL), }; +static iomux_v3_cfg_t const usdhc1_pads[] = { + /* 8 bit SD */ + MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DAT0__USDHC1_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DAT1__USDHC1_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DAT2__USDHC1_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DAT3__USDHC1_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DAT4__USDHC1_DAT4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DAT5__USDHC1_DAT5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DAT6__USDHC1_DAT6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DAT7__USDHC1_DAT7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + + /*CD pin*/ + MX6_PAD_KEY_ROW7__GPIO_4_7 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + static iomux_v3_cfg_t const usdhc2_pads[] = { MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), @@ -66,6 +83,21 @@ static iomux_v3_cfg_t const usdhc2_pads[] = { MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + + /*CD pin*/ + MX6_PAD_SD2_DAT7__GPIO_5_0 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +static iomux_v3_cfg_t const usdhc3_pads[] = { + MX6_PAD_SD3_CLK__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD3_CMD__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD3_DAT0__USDHC3_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD3_DAT1__USDHC3_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD3_DAT2__USDHC3_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD3_DAT3__USDHC3_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + + /*CD pin*/ + MX6_PAD_REF_CLK_32K__GPIO_3_22 | MUX_PAD_CTRL(NO_PAD_CTRL), }; static iomux_v3_cfg_t const fec_pads[] = { @@ -143,23 +175,105 @@ static void setup_iomux_fec(void) gpio_set_value(ETH_PHY_RESET, 1); } -static struct fsl_esdhc_cfg usdhc_cfg[1] = { - {USDHC2_BASE_ADDR}, +#ifdef CONFIG_FSL_ESDHC + +#define USDHC1_CD_GPIO IMX_GPIO_NR(4, 7) +#define USDHC2_CD_GPIO IMX_GPIO_NR(5, 0) +#define USDHC3_CD_GPIO IMX_GPIO_NR(3, 22) + +static struct fsl_esdhc_cfg usdhc_cfg[3] = { + {USDHC1_BASE_ADDR}, + {USDHC2_BASE_ADDR, 0, 4}, + {USDHC3_BASE_ADDR, 0, 4}, }; +int mmc_get_env_devno(void) +{ + u32 soc_sbmr = readl(SRC_BASE_ADDR + 0x4); + u32 dev_no; + + /* BOOT_CFG2[3] and BOOT_CFG2[4] */ + dev_no = (soc_sbmr & 0x00001800) >> 11; + + return dev_no; +} + int board_mmc_getcd(struct mmc *mmc) { - return 1; /* Assume boot SD always present */ + struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv; + int ret = 0; + + switch (cfg->esdhc_base) { + case USDHC1_BASE_ADDR: + ret = !gpio_get_value(USDHC1_CD_GPIO); + break; + case USDHC2_BASE_ADDR: + ret = !gpio_get_value(USDHC2_CD_GPIO); + break; + case USDHC3_BASE_ADDR: + ret = !gpio_get_value(USDHC3_CD_GPIO); + break; + } + + return ret; } int board_mmc_init(bd_t *bis) { - imx_iomux_v3_setup_multiple_pads(usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); + int i; + + /* + * According to the board_mmc_init() the following map is done: + * (U-boot device node) (Physical Port) + * mmc0 USDHC1 + * mmc1 USDHC2 + * mmc2 USDHC3 + */ + for (i = 0; i < CONFIG_SYS_FSL_USDHC_NUM; i++) { + switch (i) { + case 0: + imx_iomux_v3_setup_multiple_pads( + usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); + gpio_direction_input(USDHC1_CD_GPIO); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + break; + case 1: + imx_iomux_v3_setup_multiple_pads( + usdhc2_pads, ARRAY_SIZE(usdhc2_pads)); + gpio_direction_input(USDHC2_CD_GPIO); + usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); + break; + case 2: + imx_iomux_v3_setup_multiple_pads( + usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); + gpio_direction_input(USDHC3_CD_GPIO); + usdhc_cfg[2].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + break; + default: + printf("Warning: you configured more USDHC controllers" + "(%d) than supported by the board\n", i + 1); + return 0; + } + + if (fsl_esdhc_initialize(bis, &usdhc_cfg[i])) + printf("Warning: failed to initialize mmc dev %d\n", i); + } - usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); - return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); + return 0; } +void board_late_mmc_env_init(void) +{ + char cmd[32]; + u32 dev_no = mmc_get_env_devno(); + + setenv_ulong("mmcdev", dev_no); + + sprintf(cmd, "mmc dev %d", dev_no); + run_command(cmd, 0); +} +#endif + #ifdef CONFIG_MXC_EPDC #ifdef CONFIG_SPLASH_SCREEN extern int mmc_get_env_devno(void); @@ -506,11 +620,102 @@ int board_init(void) return 0; } +int board_late_init(void) +{ + +#ifdef CONFIG_ENV_IS_IN_MMC + board_late_mmc_env_init(); +#endif + + return 0; +} + u32 get_board_rev(void) { return get_cpu_rev(); } +#ifdef CONFIG_FASTBOOT + +void board_fastboot_setup(void) +{ + switch (get_boot_device()) { +#if defined(CONFIG_FASTBOOT_STORAGE_MMC) + case SD1_BOOT: + case MMC1_BOOT: + if (!getenv("fastboot_dev")) + setenv("fastboot_dev", "mmc0"); + if (!getenv("bootcmd")) + setenv("bootcmd", "booti mmc0"); + break; + case SD2_BOOT: + case MMC2_BOOT: + if (!getenv("fastboot_dev")) + setenv("fastboot_dev", "mmc1"); + if (!getenv("bootcmd")) + setenv("bootcmd", "booti mmc1"); + break; + case SD3_BOOT: + case MMC3_BOOT: + if (!getenv("fastboot_dev")) + setenv("fastboot_dev", "mmc2"); + if (!getenv("bootcmd")) + setenv("bootcmd", "booti mmc2"); + break; +#endif /*CONFIG_FASTBOOT_STORAGE_MMC*/ + default: + printf("unsupported boot devices\n"); + break; + } + +} + +#ifdef CONFIG_ANDROID_RECOVERY +int check_recovery_cmd_file(void) +{ + return recovery_check_and_clean_flag(); +} + +void board_recovery_setup(void) +{ + int bootdev = get_boot_device(); + + /*current uboot BSP only supports USDHC2*/ + switch (bootdev) { +#if defined(CONFIG_FASTBOOT_STORAGE_MMC) + case SD1_BOOT: + case MMC1_BOOT: + if (!getenv("bootcmd_android_recovery")) + setenv("bootcmd_android_recovery", + "booti mmc0 recovery"); + break; + case SD2_BOOT: + case MMC2_BOOT: + if (!getenv("bootcmd_android_recovery")) + setenv("bootcmd_android_recovery", + "booti mmc1 recovery"); + break; + case SD3_BOOT: + case MMC3_BOOT: + if (!getenv("bootcmd_android_recovery")) + setenv("bootcmd_android_recovery", + "booti mmc2 recovery"); + break; +#endif /*CONFIG_FASTBOOT_STORAGE_MMC*/ + default: + printf("Unsupported bootup device for recovery: dev: %d\n", + bootdev); + return; + } + + printf("setup env for recovery..\n"); + setenv("bootcmd", "run bootcmd_android_recovery"); +} + +#endif /*CONFIG_ANDROID_RECOVERY*/ + +#endif /*CONFIG_FASTBOOT*/ + #ifdef CONFIG_MXC_KPD #define MX6SL_KEYPAD_CTRL (PAD_CTL_HYS | PAD_CTL_PKE | PAD_CTL_PUE | \ -- cgit v1.1