iMX8MQ EVK board has a eMMC5.0 chip and supports SD3.0, so enable the UHS
and HS400 configs to enhance the eMMC/SD access.
The change also needs to set usdhc clock to 400Mhz, and add the
off-on-delay-us to SD reset pin, otherwise some SD cards will
fail to select UHS mode in re-initialization.
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
case 0:
clock_enable(CCGR_USDHC1, 0);
clock_set_target_val(USDHC1_CLK_ROOT, CLK_ROOT_ON |
case 0:
clock_enable(CCGR_USDHC1, 0);
clock_set_target_val(USDHC1_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1) |
- CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
+ CLK_ROOT_SOURCE_SEL(1));
clock_enable(CCGR_USDHC1, 1);
return;
case 1:
clock_enable(CCGR_USDHC2, 0);
clock_set_target_val(USDHC2_CLK_ROOT, CLK_ROOT_ON |
clock_enable(CCGR_USDHC1, 1);
return;
case 1:
clock_enable(CCGR_USDHC2, 0);
clock_set_target_val(USDHC2_CLK_ROOT, CLK_ROOT_ON |
- CLK_ROOT_SOURCE_SEL(1) |
- CLK_ROOT_POST_DIV(CLK_ROOT_POST_DIV2));
+ CLK_ROOT_SOURCE_SEL(1));
clock_enable(CCGR_USDHC2, 1);
return;
default:
clock_enable(CCGR_USDHC2, 1);
return;
default: