I recently checked-in a patch for CSB250 support, courtesy of Embedded
Edge. The port is big endian. I assume you haven't seen the bits
because you haven't pulled the latest bits from the linux-mips tree and
that's why you're trying to port it yourself?
On Wed, 2003-09-24 at 09:12, Lyle Bainbridge wrote:
> 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
> > Prabhakar