[U-Boot-Users] "Verifying Checksum ... Bad Data CRC" error with at91rm U-Boot on skyeye

Rohit rohits79 at gmail.com
Fri Mar 31 14:29:42 CEST 2006

Hello all,

Thanks to Vijain for pointing out the patch for skyeye. I could now run
at91rm u-boot successfully on skyeye.

I compiled a uImage from the vmlinux elf binary (take from the skyeye
testsuite). When i try to expand this image i always get a checksum error. I
didn't need to do a tftp or cp.b as i could directly load the image in
memory using the emulator.

Can some please point out if there is an issue with this?

[root at localhost at91rm]# skyeye
SKYEYE: If you have ELF kernel file, please use -e option to indicate your
ELF format kernel filename
SKYEYE: If you only have kernel binary image, you should put the filename of
kernel binary image in skyeye.conf file
arch: arm
cpu info: armv4, arm920t, 41009200, ff00fff0, 2
mach info: name at91rm92, mach_init addr 0x8069c80
uart info: input device is /dev/stdin, fd is 4.
uart info: output device is /dev/stdout, fd is 5.
SKYEYE: use arm920t mmu ops
Loaded RAM   ./u-boot.bin
Loaded RAM   ./uImage
Loaded RAM   ./uImage

U-Boot 1.1.4 (Mar 31 2006 - 17:42:28)

U-Boot code: 21F00000 -> 21F16EEC  BSS: -> 21F33E04
RAM Configuration:
Bank #0: 20000000 32 MB
Atmel: Flash:  0 kB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
U-Boot> bootm 0x20000010
## Booting image at 20000010 ...
   Image Name:
   Image Type:   ARM Linux Kernel Image (gzip compressed)
   Data Size:    756397 Bytes = 738.7 kB
   Load Address: 20000010
   Entry Point:  20000010
   Verifying Checksum ... Bad Data CRC

cpu : arm920t
mach: at91rm92

mem_bank: map=M, type=RW, addr=0x00000000, size=0x40000, file=./u-boot.bin,
mem_bank: map=M, type=RW, addr=0x10000000, size=0x1000000, file=./uImage
mem_bank: map=M, type=RW, addr=0x20000010, size=0x5000000, file=./uImage
mem_bank: map=I, type=RW, addr=0xfffa0000, size=0x00060000
uart: fd_in=/dev/stdin, fd_out=/dev/stdout
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