diff options
Diffstat (limited to 'board/technexion')
| -rw-r--r-- | board/technexion/pico-imx6ul/spl.c | 34 | ||||
| -rw-r--r-- | board/technexion/pico-imx7d/README | 4 |
2 files changed, 38 insertions, 0 deletions
diff --git a/board/technexion/pico-imx6ul/spl.c b/board/technexion/pico-imx6ul/spl.c index 6464a32d3b6..f972cc9eaff 100644 --- a/board/technexion/pico-imx6ul/spl.c +++ b/board/technexion/pico-imx6ul/spl.c @@ -10,6 +10,7 @@ #include <asm/gpio.h> #include <asm/mach-imx/iomux-v3.h> #include <asm/mach-imx/boot_mode.h> +#include <fsl_esdhc.h> #include <linux/libfdt.h> #include <spl.h> @@ -141,4 +142,37 @@ void board_init_f(ulong dummy) void reset_cpu(ulong addr) { } + +#define USDHC_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \ + PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \ + PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS) + +static iomux_v3_cfg_t const usdhc1_pads[] = { + 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_DATA0__USDHC1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA1__USDHC1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA2__USDHC1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_SD1_DATA3__USDHC1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_NAND_READY_B__USDHC1_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_NAND_CE0_B__USDHC1_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_NAND_CE1_B__USDHC1_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL), + MX6_PAD_NAND_CLE__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL), +}; + +static struct fsl_esdhc_cfg usdhc_cfg[1] = { + {USDHC1_BASE_ADDR}, +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + return 1; +} + +int board_mmc_init(bd_t *bis) +{ + imx_iomux_v3_setup_multiple_pads(usdhc1_pads, ARRAY_SIZE(usdhc1_pads)); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); +} #endif diff --git a/board/technexion/pico-imx7d/README b/board/technexion/pico-imx7d/README index 24eb97e82cc..f21d8301cbe 100644 --- a/board/technexion/pico-imx7d/README +++ b/board/technexion/pico-imx7d/README @@ -26,6 +26,10 @@ Connect a USB to serial adapter between the host PC and pico. Connect a USB cable between the OTG pico port and the host PC. +Note: Some computers may be a bit strict with USB current draw and will +shut down their ports if the draw is too high. The solution for that is +to use an externally powered USB hub between the board and the host computer. + Open a terminal program such as minicom. Copy SPL and u-boot.img to the imx_usb_loader folder. |