[U-Boot] I can not read Linux image from my nand flash

[Peter Pan]

The previous u-boot version I use is U-boot 1.2.0, an ancient version.
So I upgrade the u-boot to 2009-08.
The platform is MPC8247.
About build warnings, some warnings in printf for not proper type, and
yes, I get the 64-bit printf warning :

nand_util.c:45:2: warning: #warning Please define
CONFIG_SYS_64BIT_VSPRINTF for correct output!

After I change the loff_t from long long to unsigned long, it works fine now.

2009/12/1 Scott Wood <scottwood at freescale.com>
>
> On Fri, Nov 27, 2009 at 08:14:41PM +0800, Peter Pan wrote:
> > My u-boot version is u-boot-2009-08.
> > In my U-boot, after I entered "nboot 800000 0 0",
> > the following messages shows:
> >
> > 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
> >
> > The image in nand is written in linux 2.6.22 using
> > nandwrite -p /dev/mtd3 uImage
> > This command works fine before.
>
> What u-boot verison is "before"?  What platform?
>
> Are you getting any build warnings about 64-bit printf, BTW?
>
> > I looked into the source tree, and u-boot should read out
> > the first block in my nand flash to show the information
> > of my image. But, after that, U-boot just think all the following
> > blocks are bad blocks, so it read failed.
>
> Perhaps u-boot and your version of Linux disagree about NAND layout.
>
> -Scott