[U-Boot] U-Boot/IXP

[Bryan Hundven]

On Mon, Mar 5, 2012 at 2:09 PM, Marek Vasut <marex at denx.de> wrote:
> Dear Bryan Hundven,
>
>> On Mon, Mar 5, 2012 at 12:15 PM, Marek Vasut <marex at denx.de> wrote:
>> > Dear Michael Schwingen,
>> >
>> >> Am 03/05/2012 12:54 PM, schrieb Marek Vasut:
>> >> > Dear Michael Schwingen,
>> >> >
>> >> >> On Mon, Mar 05, 2012 at 02:14:56AM +0100, Marek Vasut wrote:
>> >> >>> Dear Michael Schwingen,
>> >> >>>
>> >> >>> do you still intend to maintain IXP support in uboot or can all
>> >> >>> those IXP boards be removed? I'd be great if you helped bringing
>> >> >>> them back in-line!
>> >> >>
>> >> >> I still use them and would want to keep these boards (and maintain
>> >> >> them).
>> >> >>
>> >> >> I only glimpse at the mailing list from time to time - are there any
>> >> >> open problems with these boards that need to be addressed?
>> >> >
>> >> > No, I just cannot compile it with usual arm-linux-gnueabi- toolchain
>> >> > and that puts a bleep on my bug-radar. Is that normal? Do I need a
>> >> > special toolchain?
>> >>
>> >> I am using an old, locally built toolchain that identifies itself as
>> >> gcc version 4.3.4 (crosstool-NG-hg_default at 1471_4a88cb9bfe8f)
>> >>
>> >> I can take a look at this using a newer toolchain - however, I am in the
>> >> process of moving, so this will probably take some weeks.
>> >>
>> >> What prebuilt toolchain should I try?
>> >
>> > I was more curious if it's possible for me myself to build these. And if
>> > so, can that be done with usual arm-linux-gnueabi- toolchain? Or do I
>> > need special armeb toolchain compiled in some special way?
>>
>> I've built a new armeb xscale toolchain available here if you want to try
>> it.
>> https://sourceforge.net/projects/bhundven.u/files/armeb-unknown-linux-gnue
>> abi.tar.bz2/download
>>
>> I built it on x86_64. I can build it on 32-bit intel if you don't have
>> an x86_64 build box. Let me know.
>>
>> $ ct-ng show-armeb-unknown-linux-gnueabi
>> armeb-unknown-linux-gnueabi  [L X]
>>     OS             : linux-3.2.8
>>     Companion libs : gmp-5.0.2 mpfr-3.1.0 ppl-0.11.2 cloog-ppl-0.15.11
>> mpc-0.9 libelf-0.8.13
>>     binutils       : binutils-2.22
>>     C compiler     : gcc-4.6.3
>> (C,C++,Fortran,Java,Objective-C,Objective-C++) C library      :
>> eglibc-2_15
>>     Tools          : dmalloc-5.5.2 duma-2_5_15 gdb-7.3a ltrace-0.5.3
>> strace-4.6
>>
> Ok, that's good. But can someone please answer my question (now there are two)?
>
> 1) Does usual arm-linux-gnueabi- toolchain work? (possibly if I use some switch
> to toggle arm core endianness)

No, the arm and armeb toolchains are different tuples.

> 2) Do I need any special options to build the toolchain?

You have to build an armeb toolchain with armeb as the platform in the
tuple. I don't see one on mentorgraphic's site.
I'm not sure if you can build a multilib arm/armeb toolchain.

> Best regards,
> Marek Vasut

-Bryan