> Date: Sat, 31 May 2008 03:23:07 -0700> From: [EMAIL PROTECTED]> To:
> linuxppc-embedded@ozlabs.org> Subject: Re: FW: Error occured when appended
> FPGA image in the section of .init.text then bootup> > 朱利达 (lida zhu)wrote:>
> >> >> > The request below give rise to the problem.> > I have some boards
> equiped with MPC8247 and FPGA without storage> > media which used as a PCI
> interface. So when the linux bootup> > before initialize the PCI, the code of
> FPGA will download. I> > append the FPGA code file in the Kernel section
> '.init.text'. when> > linux bootup firstly it check the board type(different
> board type> > would download different code), and download fpga code. More
> board> > types lead to more FPGA code. I append them all in the section of> >
> '.init.text'. when the total size of the code reach out 2M. The> > error
> occured. I read the '__log_buf' the kernel access some bad> > area. As the
> powerpce603 will map 16M address use two bat, how and> > why the problem
> occured, and h
ow to solved it .> >> > Since the error occurs at 2M, I am going to guess it
is similar to> problem I had. The default link/load address for booting is
0x200000.> > Here is a link:>
<http://patchwork.ozlabs.org/linuxppc-embedded/patch?id=14717>> > This fix is
for the arch/ppc tree. I don't know if the arch/powerpc tree> works the same
way.> > In the future, you should say what kernel version you are using and
what> the error was.> > Alan Nishioka> [EMAIL PROTECTED]> >
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Thanks! Mr.西��
The u-boot uncompress the Muti-file image.
when the u-boot show:
## Booting image at 01000000 ... Image Name: E300-2.0(8), alpha Image
Type: PowerPC Linux Multi-File Image (gzip compressed) Data Size:
15246424 Bytes = 14.5 MB Load Address: 00000000 Entry Point: 00000000
Contents: Image 0: 1887243 Bytes = 1.8 MB Image 1: 13359168 Bytes = 12.7
MB Verifying Checksum ... OK ... OK Loading Ramdisk to 0ef08000, end
0fbc5840 ... OK
the image 0 is 1.8MB.It can not bootup. No matter I put the FPGA images in
section '.init.data' or '.init.text'.
when the u-boot show
Bytes transferred = 15163187 (e75f33 hex)## Booting image at 01000000 ...
Image Name: E300-2.0(8), alpha Image Type: PowerPC Linux Multi-File Image
(gzip compressed) Data Size: 15163123 Bytes = 14.5 MB Load Address:
00000000 Entry Point: 00000000 Contents: Image 0: 1803789 Bytes = 1.7
MB Image 1: 13359319 Bytes = 12.7 MB Verifying Checksum ... OK
Uncompressing Multi-File Image ... OK Loading Ramdisk to 0ef08000, end
0fbc58d7 ... OK
I cut one of the FPGA images. The Kernel image is 1.7MB.It can bootup. No
matter I put the FPGA images in the section '.init.data' or '.init.text'. And
when i fill the FPGA images in the section of '.init.data' the kernel makes
mistake when she access the '__setup_start = .;' At the vmlinux.ld.s, I find
it just behind the section .init.data. May be i can not describe correctly,
because Truly I don't why.
My linux version is 2.6.18, using the arch/ppc tree. and the u-boot verison is
1.1.4.
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