From 4e267b92fb28a4f626c1d27ad71e21cf4df2935b Mon Sep 17 00:00:00 2001 From: Joris Offouga Date: Thu, 4 Apr 2019 14:00:55 +0200 Subject: pico-imx7d: Convert DM MMC This patch enable convert DM MMC for imx7d-pico board and variant. Before the DM conversion only usdhc3 was enabled and therefore it appeared as MMC 0 to u-boot. After enabling MMC DM though usdhc3 defaults to MMC 2, which left unattended would drive changes to existing pico-pi bootscripts and environment variables that rely on mmc 0. Setup the alias of mmc0 and usdhc3 so that existing pico-imx7d boot code will work unmodified. When converting to DM_MMC it is necessary that SPL initializes eMMC by itself, so move the original eMMC initialization from U-Boot proper to SPL. Signed-off-by: Joris Offouga Signed-off-by: Fabio Estevam --- board/technexion/pico-imx7d/pico-imx7d.c | 38 -------------------------------- board/technexion/pico-imx7d/spl.c | 38 ++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+), 38 deletions(-) (limited to 'board') diff --git a/board/technexion/pico-imx7d/pico-imx7d.c b/board/technexion/pico-imx7d/pico-imx7d.c index 3b9be45587..e63b19df6e 100644 --- a/board/technexion/pico-imx7d/pico-imx7d.c +++ b/board/technexion/pico-imx7d/pico-imx7d.c @@ -13,10 +13,8 @@ #include #include #include -#include #include #include -#include #include #include #include @@ -28,9 +26,6 @@ DECLARE_GLOBAL_DATA_PTR; #define UART_PAD_CTRL (PAD_CTL_DSE_3P3V_49OHM | \ PAD_CTL_PUS_PU100KOHM | PAD_CTL_HYS) -#define USDHC_PAD_CTRL (PAD_CTL_DSE_3P3V_32OHM | PAD_CTL_SRE_SLOW | \ - PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PUS_PU47KOHM) - #define ENET_PAD_CTRL (PAD_CTL_PUS_PU100KOHM | PAD_CTL_DSE_3P3V_49OHM) #define ENET_PAD_CTRL_MII (PAD_CTL_DSE_3P3V_32OHM) @@ -126,20 +121,6 @@ static iomux_v3_cfg_t const uart5_pads[] = { MX7D_PAD_I2C4_SDA__UART5_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), }; -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), - MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), - MX7D_PAD_GPIO1_IO14__GPIO1_IO14 | MUX_PAD_CTRL(USDHC_PAD_CTRL), -}; - #ifdef CONFIG_FEC_MXC static iomux_v3_cfg_t const fec1_pads[] = { MX7D_PAD_SD2_CD_B__ENET1_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL_MII), @@ -224,25 +205,6 @@ static void setup_iomux_uart(void) imx_iomux_v3_setup_multiple_pads(uart5_pads, ARRAY_SIZE(uart5_pads)); } -static struct fsl_esdhc_cfg usdhc_cfg[1] = { - {USDHC3_BASE_ADDR}, -}; - -int board_mmc_getcd(struct mmc *mmc) -{ - /* Assume uSDHC3 emmc is always present */ - return 1; -} - -int board_mmc_init(bd_t *bis) -{ - imx_iomux_v3_setup_multiple_pads( - usdhc3_emmc_pads, ARRAY_SIZE(usdhc3_emmc_pads)); - usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); - - return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); -} - int board_early_init_f(void) { setup_iomux_uart(); diff --git a/board/technexion/pico-imx7d/spl.c b/board/technexion/pico-imx7d/spl.c index 8c3443875d..92a46463db 100644 --- a/board/technexion/pico-imx7d/spl.c +++ b/board/technexion/pico-imx7d/spl.c @@ -5,11 +5,15 @@ * Author: Richard Hu */ +#include #include #include +#include #include #include +#include #include +#include #include #if defined(CONFIG_SPL_BUILD) @@ -119,4 +123,38 @@ void board_init_f(ulong dummy) void reset_cpu(ulong addr) { } + +#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[] = { + 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), + MX7D_PAD_SD3_DATA1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_SD3_DATA7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX7D_PAD_GPIO1_IO14__GPIO1_IO14 | MUX_PAD_CTRL(USDHC_PAD_CTRL), +}; + +static struct fsl_esdhc_cfg usdhc_cfg[1] = { + {USDHC3_BASE_ADDR}, +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + /* Assume uSDHC3 emmc is always present */ + return 1; +} + +int board_mmc_init(bd_t *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]); +} #endif -- cgit v1.2.3