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| author | Peter Robinson <pbrobinson@gmail.com> | 2021-12-21 12:32:47 +0000 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-01-07 09:30:44 -0500 |
| commit | 2bbe1ba0c712c3eb1670952efa3351f501959eb3 (patch) | |
| tree | f48f935ae34326aac2fa59716b2ce7df899d0a04 /board | |
| parent | 4be9947edf68650db0c68d7c212f98a7cd1dfbdd (diff) | |
| download | u-boot-2bbe1ba0c712c3eb1670952efa3351f501959eb3.tar.gz u-boot-2bbe1ba0c712c3eb1670952efa3351f501959eb3.tar.bz2 u-boot-2bbe1ba0c712c3eb1670952efa3351f501959eb3.zip | |
udoo_neo: Fixes for booting from the mSD card
This fixes booting from the mSD card from both SPL and when
using it for the OS booting. It also cleans up a few mmc
booting bits that are no longer needed.
Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/udoo/neo/neo.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/board/udoo/neo/neo.c b/board/udoo/neo/neo.c index 61195be744..8b0d13b1ca 100644 --- a/board/udoo/neo/neo.c +++ b/board/udoo/neo/neo.c @@ -19,6 +19,8 @@ #include <asm/mach-imx/iomux-v3.h> #include <dm.h> #include <env.h> +#include <mmc.h> +#include <fsl_esdhc_imx.h> #include <asm/arch/crm_regs.h> #include <asm/io.h> #include <asm/mach-imx/mxc_i2c.h> @@ -214,6 +216,19 @@ static iomux_v3_cfg_t const uart1_pads[] = { MX6_PAD_GPIO1_IO05__UART1_RX | MUX_PAD_CTRL(UART_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), + MX6_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + /* CD pin */ + MX6_PAD_SD1_DATA0__GPIO6_IO_2 | MUX_PAD_CTRL(NO_PAD_CTRL), + /* Power */ + MX6_PAD_SD1_CMD__GPIO6_IO_1 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + static iomux_v3_cfg_t const phy_control_pads[] = { /* 25MHz Ethernet PHY Clock */ MX6_PAD_ENET2_RX_CLK__ENET2_REF_CLK_25M | @@ -327,6 +342,31 @@ int board_early_init_f(void) return 0; } +static struct fsl_esdhc_cfg usdhc_cfg[1] = { + {USDHC2_BASE_ADDR}, +}; + +#define USDHC2_PWR_GPIO IMX_GPIO_NR(6, 1) +#define USDHC2_CD_GPIO IMX_GPIO_NR(6, 2) + +int board_mmc_getcd(struct mmc *mmc) +{ + return !gpio_get_value(USDHC2_CD_GPIO); +} + +int board_mmc_init(struct bd_info *bis) +{ + SETUP_IOMUX_PADS(usdhc2_pads); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK); + usdhc_cfg[0].max_bus_width = 4; + gpio_request(IMX_GPIO_NR(6, 1), "usdhc2_pwr"); + gpio_request(IMX_GPIO_NR(6, 2), "usdhc2_cd"); + gpio_direction_input(USDHC2_CD_GPIO); + gpio_direction_output(USDHC2_PWR_GPIO, 1); + + return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); +} + static char *board_string(void) { switch (get_board_value()) { |