Command in U-boot debugging

The second week of U-boot debugging is started today. You can directly download U-boot to DDR through bdi2000 and run it successfully. However, no matter how hard it is to be written to NAND Flash, it cannot be boot. You can use the NAND Operation Command in U-boot to confirm that the write operation is correct.

Let's talk about the NAND operation commands in U-boot.

Nand read <ddr_addr> <nand_offset> <Len> (read LEN Length data from offset in NAND Flash to DDR address)

E. g: NAND read 0x2000000 0x0x100

 

Nand write <ddr_addr> <nand_offset> <Len> (write data in DDR to the NAND flash with the length starting from offset to Len)

E. g: NAND write 0x2000000 0x0x100

 

Nand erase <nand_offset> <Len> (erased data whose length starts with nand_offset is Len)

E. g: NAND erase 0x0 0x100