Hi,
a uboot-imx/include/configs/mx6sabresd.h file:
#define CONFIG_SYS_FSL_USDHC_NUM 3
#define CONFIG_SYS_MMC_ENV_DEV 1 /* SDHC3 */
#define CONFIG_SYS_MMC_ENV_PART 0 /* user partition */
uboot log:
U-Boot 2015.04-14468-g19b5506-dirty (Apr 17 2016 - 21:32:07)
CPU: Freescale i.MX6Q rev1.5 at 792 MHz
CPU: Temperature 24 C
Reset cause: POR
Board: MX6-SabreSD
I2C: ready
DRAM: 3.8 GiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
MMC Device -1 not found
No MMC card found
这时什么原因呢? |