From: Benjamin Szőke egyszeregy@freemail.hu
Take over codes from Techenxion to support mmc autodetect boot for pico-imx7d.
Signed-off-by: Benjamin Szőke egyszeregy@freemail.hu --- board/technexion/pico-imx7d/pico-imx7d.c | 57 +++++++++++++++ board/technexion/pico-imx7d/spl.c | 91 ++++++++++++++++++++++-- include/configs/pico-imx7d.h | 4 +- 3 files changed, 144 insertions(+), 8 deletions(-)
diff --git a/board/technexion/pico-imx7d/pico-imx7d.c b/board/technexion/pico-imx7d/pico-imx7d.c index 6e98b85b28..a3fa915b49 100644 --- a/board/technexion/pico-imx7d/pico-imx7d.c +++ b/board/technexion/pico-imx7d/pico-imx7d.c @@ -5,6 +5,7 @@
#include <init.h> #include <net.h> +#include <command.h> #include <asm/arch/clock.h> #include <asm/arch/crm_regs.h> #include <asm/arch/imx-regs.h> @@ -13,6 +14,7 @@ #include <asm/global_data.h> #include <asm/gpio.h> #include <asm/mach-imx/iomux-v3.h> +#include <asm/mach-imx/boot_mode.h> #include <asm/io.h> #include <common.h> #include <miiphy.h> @@ -129,6 +131,49 @@ int board_phy_config(struct phy_device *phydev) } #endif
+#if CONFIG_IS_ENABLED(FSL_ESDHC_IMX) +int check_mmc_autodetect(void) +{ + char *autodetect_str = env_get("mmcautodetect"); + + if ((autodetect_str != NULL) && + (strcmp(autodetect_str, "yes") == 0)) { + return 1; + } + + return 0; +} + +void board_late_mmc_init(void) +{ + int dev_no = 0; + char cmd[32]; + + if (!check_mmc_autodetect()) + return; + + switch (get_boot_device()) { + case SD3_BOOT: + case MMC3_BOOT: + env_set("bootdev", "MMC3"); + dev_no = 2; + break; + case SD1_BOOT: + env_set("bootdev", "SD1"); + dev_no = 0; + break; + default: + printf("Wrong boot device!"); + } + + /* Set mmcdev env */ + env_set_ulong("mmcdev", dev_no); + + sprintf(cmd, "mmc dev %d", dev_no); + run_command(cmd, 0); +} +#endif + static void setup_iomux_uart(void) { imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads)); @@ -176,6 +221,12 @@ int board_late_init(void)
set_wdog_reset(wdog);
+#if CONFIG_IS_ENABLED(FSL_ESDHC_IMX) +#if defined(CONFIG_ENV_IS_IN_MMC) || defined(CONFIG_ENV_IS_NOWHERE) + board_late_mmc_init(); +#endif /* CONFIG_ENV_IS_IN_MMC or CONFIG_ENV_IS_NOWHERE */ +#endif + /* * Do not assert internal WDOG_RESET_B_DEB(controlled by bit 4), * since we use PMIC_PWRON to reset the board. @@ -210,3 +261,9 @@ int board_ehci_hcd_init(int port) } return 0; } + +/* This should be defined for each board */ +__weak int mmc_map_to_kernel_blk(int dev_no) +{ + return dev_no; +} diff --git a/board/technexion/pico-imx7d/spl.c b/board/technexion/pico-imx7d/spl.c index c6b21aaa42..2fe76145be 100644 --- a/board/technexion/pico-imx7d/spl.c +++ b/board/technexion/pico-imx7d/spl.c @@ -15,6 +15,7 @@ #include <asm/arch/sys_proto.h> #include <asm/arch-mx7/mx7-ddr.h> #include <asm/mach-imx/iomux-v3.h> +#include <asm/mach-imx/boot_mode.h> #include <asm/gpio.h> #include <asm/sections.h> #include <fsl_esdhc_imx.h> @@ -159,7 +160,20 @@ void reset_cpu(void) #define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \ PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM)
-static iomux_v3_cfg_t const usdhc3_pads[] = { +#define USDHC1_CD_GPIO IMX_GPIO_NR(5, 0) +/* EMMC/SD */ +static iomux_v3_cfg_t const usdhc1_pads[] = { + MX7D_PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD1_DATA0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD1_DATA1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD1_DATA2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD1_DATA3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD1_CD_B__GPIO5_IO0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), +}; + +#define USDHC3_CD_GPIO IMX_GPIO_NR(1, 14) +static iomux_v3_cfg_t const usdhc3_emmc_pads[] = { MX7D_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX7D_PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL), MX7D_PAD_SD3_DATA0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), @@ -173,20 +187,83 @@ static iomux_v3_cfg_t const usdhc3_pads[] = { MX7D_PAD_GPIO1_IO14__GPIO1_IO14 | MUX_PAD_CTRL(USDHC_PAD_CTRL), };
-static struct fsl_esdhc_cfg usdhc_cfg[1] = { +static struct fsl_esdhc_cfg usdhc_cfg[2] = { {USDHC3_BASE_ADDR}, + {USDHC1_BASE_ADDR}, };
int board_mmc_getcd(struct mmc *mmc) { - /* Assume uSDHC3 emmc is always present */ - return 1; + 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); /* Assume uSDHC1 sd is always present */ + break; + case USDHC3_BASE_ADDR: + ret = !gpio_get_value(USDHC3_CD_GPIO); /* Assume uSDHC3 emmc is always present */ + break; + } + + return ret; }
int board_mmc_init(struct bd_info *bis) { - imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads)); - usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); - return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); + int ret; + u32 index = 0; + + /* + * Following map is done: + * (USDHC) (Physical Port) + * usdhc3 SOM MicroSD/MMC + * usdhc1 Carrier board MicroSD + * Always set boot USDHC as mmc0 + */ + + imx_iomux_v3_setup_multiple_pads( + usdhc3_emmc_pads, ARRAY_SIZE(usdhc3_emmc_pads)); + gpio_direction_input(USDHC3_CD_GPIO); + + imx_iomux_v3_setup_multiple_pads( + usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); + gpio_direction_input(USDHC1_CD_GPIO); + + switch (get_boot_device()) { + case SD1_BOOT: + usdhc_cfg[0].esdhc_base = USDHC1_BASE_ADDR; + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + usdhc_cfg[0].max_bus_width = 4; + usdhc_cfg[1].esdhc_base = USDHC3_BASE_ADDR; + usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + usdhc_cfg[1].max_bus_width = 4; + break; + case MMC3_BOOT: + usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR; + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + usdhc_cfg[0].max_bus_width = 8; + usdhc_cfg[1].esdhc_base = USDHC1_BASE_ADDR; + usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + usdhc_cfg[1].max_bus_width = 4; + break; + case SD3_BOOT: + default: + usdhc_cfg[0].esdhc_base = USDHC3_BASE_ADDR; + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + usdhc_cfg[0].max_bus_width = 4; + usdhc_cfg[1].esdhc_base = USDHC1_BASE_ADDR; + usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + usdhc_cfg[1].max_bus_width = 4; + break; + } + + for (index = 0; index < CFG_SYS_FSL_USDHC_NUM; ++index) { + ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]); + if (ret) + return ret; + } + + return 0; } #endif diff --git a/include/configs/pico-imx7d.h b/include/configs/pico-imx7d.h index 096e5bbe66..f797bd51af 100644 --- a/include/configs/pico-imx7d.h +++ b/include/configs/pico-imx7d.h @@ -13,7 +13,7 @@ #define CFG_MXC_UART_BASE UART5_IPS_BASE_ADDR
/* MMC Config */ -#define CFG_SYS_FSL_ESDHC_ADDR 0 +#define CFG_SYS_FSL_ESDHC_ADDR USDHC3_BASE_ADDR
#define CFG_DFU_ENV_SETTINGS \ "dfu_alt_info=" \ @@ -79,9 +79,11 @@ "name=rootfs,size=0,uuid=${uuid_gpt_rootfs}\0" \ "fastboot_partition_alias_system=rootfs\0" \ "setup_emmc=mmc dev 0; gpt write mmc 0 $partitions; reset;\0" \ + "mmcautodetect=yes\0" \ PICO_BOOT_ENV
#define BOOT_TARGET_DEVICES(func) \ + func(MMC, mmc, 2) \ func(MMC, mmc, 0) \ func(USB, usb, 0) \ func(PXE, pxe, na) \