I believe that the CSB250 port will support big or small endian. Check
out the latest mips-linux kernel code first (2.4.22 I beleive). Then you
need to use a big endian toolchain. Mips not Mipsel (ie,
mips-linux-gcc). Then open the arch/mips/defconfig-csb250 file and
modify the CONFIG_CPU_LITTLE_ENDIAN option. It should be:
Then continue to build the kernel as you would for little endian. I
think that's all from the kernel standpoint. But, are you using Micromon
to boot the kernel? By default I think the CSB250 and it's monitor are
built little endian, and you won't be able to use this if you want a BE
kernel. You need the boot loader to put the Au1500 into BE mode.
Email if you need more details.
> -----Original Message-----
> From: firstname.lastname@example.org
> [mailto:email@example.com] On Behalf Of
> Prabhakar Kalasani
> Sent: Wednesday, September 24, 2003 10:15 AM
> To: 'firstname.lastname@example.org'
> Subject: How to translate Little to Big endian ?
> Hi all,
> I'm trying to port linux-2.4.21 on CSB250 , which is Au1500
> processor based board, the processor is a Big endian, I have
> taken PB1500 board as my prototype, but it's used Au1500
> Little endian. anybody could help me out, what are the
> changes do i need to change to make a Little endian souce
> into Big endian source.
> Is anybody worked on Cogent's CSB250 board till.
> Thanks in advance