我正在尝试在imx51飞思卡尔板上运行带有Linux rootfs的Linux内核。
我编译了Linux内核，根文件系统和u-boot，并将映像复制到SD卡：分区0：引导分区1：rootfs和linux内核
但是我有以下错误：
U-Boot 2011.12 (Mar 13 2012 - 14:15:41)
CPU: Freescale i.MX51 family rev3.0 at 800 MHz
Reset cause: POR
Board: MX51EVK
DRAM: 512 MiB
WARNING: Caches not enabled
MMC: FSL_SDHC: 0, FSL_SDHC: 1
MMC: no card present
MMC init failed
Using default environment
In: serial
Out: serial
Err: serial
Net: FEC
Warning: failed to set MAC address
Hit any key to stop autoboot: 0
MX51EVK U-Boot > mmcinfo
MMC: no card present
Device: FSL_SDHC
Manufacturer ID: 0
OEM: 0
Name: Tran Speed: 0
Rd Block Len: 0
MMC version 0.0
High Capacity: No
Capacity: 0 Bytes
Bus Width: 0-bit
MX51EVK U-Boot > mmc init
mmc - MMC sub system
Usage:
mmc read addr blk# cnt
mmc write addr blk# cnt
mmc erase blk# cnt
mmc rescan
mmc part - lists available partition on current mmc device
mmc dev [dev] [part] - show or set current mmc device [partition]
mmc list - lists available devices
MX51EVK U-Boot > mmc list
FSL_SDHC: 0
FSL_SDHC: 1
MX51EVK U-Boot > mmc dev
MMC: no card present
mmc0(part 0) is current device
MX51EVK U-Boot >
有什么事吗
最佳答案
检查DIP开关后，我意识到该开关已设置为从底部插槽引导SD卡，而我一直都是从顶部插槽引导。这样就解决了我的问题