Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2025-02-18 06:58:54 +00:00
Code Issues Projects Releases Packages Wiki Activity

ot1200: add support for usdhc4

Browse source 
On the 'mr' variant switching to 'mmc dev 1' will result
in "MMC: no card present".

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
This commit is contained in:
Christian Gmeiner 2014-10-23 13:46:42 +02:00 • committed by Stefano Babic
parent 1199ddce9c
commit 5a9ca420ce
1 changed files with 48 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

52
board/bachmann/ot1200/ot1200.c
View file

@ -141,23 +141,67 @@ static iomux_v3_cfg_t const usdhc3_pads[] = {
MX6_PAD_SD3_RST__SD3_RESET | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
iomux_v3_cfg_t const usdhc4_pads[] = {
MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
int board_mmc_getcd(struct mmc *mmc)
{
return 1;
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret;
if (cfg->esdhc_base == USDHC3_BASE_ADDR)
ret = 1;
else {
gpio_direction_input(IMX_GPIO_NR(1, 4));
ret = !gpio_get_value(IMX_GPIO_NR(1, 4));
}
return ret;
}
struct fsl_esdhc_cfg usdhc_cfg[] = {
struct fsl_esdhc_cfg usdhc_cfg[2] = {
{USDHC3_BASE_ADDR},
{USDHC4_BASE_ADDR},
};
int board_mmc_init(bd_t *bis)
{
s32 status = 0;
u32 index = 0;
usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
usdhc_cfg[0].max_bus_width = 8;
usdhc_cfg[1].max_bus_width = 4;
imx_iomux_v3_setup_multiple_pads(usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
switch (index) {
case 0:
imx_iomux_v3_setup_multiple_pads(
usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
break;
case 1:
imx_iomux_v3_setup_multiple_pads(
usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
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 status;
}
return fsl_esdhc_initialize(bis, &usdhc_cfg[0]);
status |= fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
}
return status;
}
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)