I assumed that the stack does not support "loff_t", so I search for its definition. In /include/asm-ppc/posix_types.h has a definition for "__kernel_loff_t" which is type defined to "loff_t" in /include/linux/types.h. I change this "__kernel)loff_t" from "long long" to "unsigned long". And the Function gets the same parameters caller gives.
Maybe ppc stack here does not support long long?
2009/11/30 Peter Pan pppeterpppan@gmail.com
Dear Wolfgang Denk: I'm using U-Boot-2009-08 now. And I have a problem booting my linux image from nand flash. I can boot from my norflash using NFS, and mount my Nand flash, nand flash works file with fstype yaffs2. I run command nboot 800000 0 0 (device 0, offset 0, into memory 0x800000), then it prints out my image information and then says that it reads failed. The prints are:
Loading from NAND 1GiB 3,3V 8-bit, offset 0x0 Image Name: Linux-2.6.22.sac.rd Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 1045865 Bytes = 1021.4 kB Load Address: 00000000 Entry Point: 00000000 NAND read from offset ffffffff failed 0
** Read error
This seems that all the blocks are bad blocks, so I try "nand bad", there are no bad blocks in my nand flash as it says. Then, I look into the source, and find something strange. In function "nand_load_image" in /common/cmd_nand.c, I print out the parameters of function "nand_load_image" gives "nand_read_skip_bad" and function "nand_read_skip_bad" gets, they are different.
nand = 0xfffdab8, offset = 0x0, &cnt = 0xfba1768. addr = 0x800000 in nand_load_image. nand = 0xfffdab8, offset = 0x0, length = 0x0, buffer = 0xfba1768 in nand_read_skip_bad.
This seems the stack is wrong? I don't know what to do next now.