[gdt-A20@MINI2440] ## mmc init //sd卡设备信息测试
mmc: Probing for SDHC ...
mmc: SD 2.0 or later card found
trying to detect SD Card...
Manufacturer: 0x11, OEM "D?
Product name: "SD256", revision 2.0
Serial number: 2801825483
Manufacturing date: 9/2008
CRC: 0x3b, b0 = 1
READ_BL_LEN=15, C_SIZE_MULT=1, C_SIZE=3971
size = 2344615936
SD Card detected RCA: 0x7 type: SD
mmc1 is available
[gdt-A20@MINI2440] ## fatload mmc 0:1 0x30008040 zImage.img //读取内核镜像到内存0x30008040
reading zImage.img
2147816 bytes read