From: Benjamin Szőke egyszeregy@freemail.hu

Technexion PICO-IMX7 SoM is supporting USDHC3 (eMMC or micro SD on SoM) and USDHC1 (SD on carrier board) to use on any carrier board like PICO-NYMPH. Based on the U-Boot version from Technexion it adds baseboard SD card boot detect to able to boot from selected USDHC1 or USDHC3 boot devices.

Signed-off-by: Benjamin Szőke egyszeregy@freemail.hu --- arch/arm/dts/imx7d-pico-pi-u-boot.dtsi | 11 +-- board/technexion/pico-imx7d/Makefile | 2 +- board/technexion/pico-imx7d/pico-imx7d.c | 53 +++++++++++++- board/technexion/pico-imx7d/spl.c | 91 ++++++++++++++++++++++-- include/configs/pico-imx7d.h | 4 +- 5 files changed, 146 insertions(+), 15 deletions(-)

diff --git a/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi b/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi index 843b4583e5..3dd01e36a4 100644 --- a/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi +++ b/arch/arm/dts/imx7d-pico-pi-u-boot.dtsi @@ -1,11 +1,12 @@ #include "imx7s-u-boot.dtsi"

/{ - aliases { - mmc0 = &usdhc3; - usb0 = &usbotg1; - display0 = &lcdif; - }; + aliases { + mmc0 = &usdhc3; + mmc1 = &usdhc1; + usb0 = &usbotg1; + display0 = &lcdif; + }; };

&usbotg1 { diff --git a/board/technexion/pico-imx7d/Makefile b/board/technexion/pico-imx7d/Makefile index 4ae3d606b5..61b55fcc55 100644 --- a/board/technexion/pico-imx7d/Makefile +++ b/board/technexion/pico-imx7d/Makefile @@ -1,4 +1,4 @@ # SPDX-License-Identifier: GPL-2.0+ # (C) Copyright 2017 NXP Semiconductors

-obj-y := pico-imx7d.o spl.o +obj-y := pico-imx7d.o spl.o ../../freescale/common/mmc.o diff --git a/board/technexion/pico-imx7d/pico-imx7d.c b/board/technexion/pico-imx7d/pico-imx7d.c index 6e98b85b28..157aea6189 100644 --- a/board/technexion/pico-imx7d/pico-imx7d.c +++ b/board/technexion/pico-imx7d/pico-imx7d.c @@ -13,6 +13,7 @@ #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> @@ -25,6 +26,11 @@ DECLARE_GLOBAL_DATA_PTR; #define UART_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | \ PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS)

+#define PICO_MMC0 0 +#define PICO_MMC0_BLK 2 +#define PICO_MMC1 1 +#define PICO_MMC1_BLK 0 + int dram_init(void) { gd->ram_size = imx_ddr_size(); @@ -106,7 +112,7 @@ int board_phy_config(struct phy_device *phydev) { unsigned short val;

- /* To enable AR8035 ouput a 125MHz clk from CLK_25M */ + /* To enable AR8035 output a 125MHz clk from CLK_25M */ phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x7); phy_write(phydev, MDIO_DEVAD_NONE, 0xe, 0x8016); phy_write(phydev, MDIO_DEVAD_NONE, 0xd, 0x4007); @@ -176,6 +182,12 @@ 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_env_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 +222,42 @@ int board_ehci_hcd_init(int port) } return 0; } + +int mmc_get_env_dev(void) +{ + int dev_no = 0; + + switch (get_boot_device()) { + case SD3_BOOT: + case MMC3_BOOT: + env_set("bootdev", "MMC3"); + dev_no = PICO_MMC0; + break; + case SD1_BOOT: + env_set("bootdev", "SD1"); + dev_no = PICO_MMC1; + break; + default: + printf("Wrong boot device!"); + } + + return dev_no; +} + +int mmc_map_to_kernel_blk(int dev_no) +{ + int blk_no = 0; + + switch (dev_no) { + case PICO_MMC0: + blk_no = PICO_MMC0_BLK; + break; + case PICO_MMC1: + blk_no = PICO_MMC1_BLK; + break; + default: + printf("Invalid MMC device!"); + } + + return blk_no; +} diff --git a/board/technexion/pico-imx7d/spl.c b/board/technexion/pico-imx7d/spl.c index c6b21aaa42..0192eafbaa 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 const iomux_v3_cfg_t 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 const iomux_v3_cfg_t 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); + break; + case USDHC3_BASE_ADDR: + ret = !gpio_get_value(USDHC3_CD_GPIO); + 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; + + /* + * 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..e7a8cb20df 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, 1) \ func(MMC, mmc, 0) \ func(USB, usb, 0) \ func(PXE, pxe, na) \