uboot 之 eMMC

一、uboot eMMC command

mmc info

mmc erase

mmc read

mmc write

mmc rescan

mmc 

for example:

　　Use tftp load data to DRAM 0x85000000

　　Then, mmc write 0x85000000 16 190       //write data to mmc 

　　mmc read 0x82000000 16 190          　　//read mmc data to dram　It's mean load blk 16 data len 190*512 to DRAM address 0x82000000;

　　md.b 0x82000000 0x100  　　　　　　　　//It's mean print DRAM address data, read length is 0x100;

　　

二、source code read.