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author | Anatolij Gustschin <agust@denx.de> | 2019-03-18 23:29:47 +0100 |
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committer | Stefano Babic <sbabic@denx.de> | 2019-04-13 20:30:09 +0200 |
commit | 2cbf1b3215e17ea9e2eec98a0581da25709f066f (patch) | |
tree | 55db994522ba00fbe51dfb20b19e87ecd079266d /board/wandboard/spl.c | |
parent | c60954207983bbeaa343ef730d82224c940053e8 (diff) | |
download | u-boot-2cbf1b3215e17ea9e2eec98a0581da25709f066f.zip u-boot-2cbf1b3215e17ea9e2eec98a0581da25709f066f.tar.gz u-boot-2cbf1b3215e17ea9e2eec98a0581da25709f066f.tar.bz2 |
imx6: wandboard: convert to DM_MMC
Move SDHC init to SPL code since it is not required with
DM_MMC. Enable DM_MMC support.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'board/wandboard/spl.c')
-rw-r--r-- | board/wandboard/spl.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/board/wandboard/spl.c b/board/wandboard/spl.c index 9c33500..000cb10 100644 --- a/board/wandboard/spl.c +++ b/board/wandboard/spl.c @@ -422,4 +422,96 @@ void board_init_f(ulong dummy) /* DDR initialization */ spl_dram_init(); } + +#define USDHC1_CD_GPIO IMX_GPIO_NR(1, 2) +#define USDHC3_CD_GPIO IMX_GPIO_NR(3, 9) + +#define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \ + PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \ + PAD_CTL_SRE_FAST | PAD_CTL_HYS) + +static struct fsl_esdhc_cfg usdhc_cfg[2] = { + {USDHC3_BASE_ADDR}, + {USDHC1_BASE_ADDR}, +}; + +static iomux_v3_cfg_t const usdhc1_pads[] = { + IOMUX_PADS(PAD_SD1_CLK__SD1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_CMD__SD1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_DAT0__SD1_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_DAT1__SD1_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_DAT2__SD1_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD1_DAT3__SD1_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + /* Carrier MicroSD Card Detect */ + IOMUX_PADS(PAD_GPIO_2__GPIO1_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + +static iomux_v3_cfg_t const usdhc3_pads[] = { + IOMUX_PADS(PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD3_CMD__SD3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + IOMUX_PADS(PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL)), + /* SOM MicroSD Card Detect */ + IOMUX_PADS(PAD_EIM_DA9__GPIO3_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL)), +}; + +int board_mmc_getcd(struct mmc *mmc) +{ + 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(bd_t *bis) +{ + int ret; + u32 index = 0; + + /* + * Following map is done: + * (U-Boot device node) (Physical Port) + * mmc0 SOM MicroSD + * mmc1 Carrier board MicroSD + */ + for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) { + switch (index) { + case 0: + SETUP_IOMUX_PADS(usdhc3_pads); + usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK); + usdhc_cfg[0].max_bus_width = 4; + gpio_direction_input(USDHC3_CD_GPIO); + break; + case 1: + SETUP_IOMUX_PADS(usdhc1_pads); + usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK); + usdhc_cfg[1].max_bus_width = 4; + gpio_direction_input(USDHC1_CD_GPIO); + break; + default: + printf("Warning: you configured more USDHC controllers" + "(%d) then supported by the board (%d)\n", + index + 1, CONFIG_SYS_FSL_USDHC_NUM); + return -EINVAL; + } + + ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]); + if (ret) + return ret; + } + + return 0; +} + #endif |