* eCos port/update for MIPS malta & sead3 platforms
@ 2012-12-03 12:50 Chiou, Charles
2012-12-03 14:58 ` John Dallaway
0 siblings, 1 reply; 3+ messages in thread
From: Chiou, Charles @ 2012-12-03 12:50 UTC (permalink / raw)
To: ecos-devel
Hello,
I would like to submit patches to update the support for MIPS platforms on the
boards Malta and SEAD3. Specifically, the patches will:
- Update outdated drivers for proper hardware support on modern malta
- Support the SEAD3 board
- Retain compatibility with QEMU's malta emulator
- Support the newest mips-sde-elf-gcc toolchain (Sourcery CodeBench Lite 2012.03-64)
- Support running eCos in MicroMIPS
- Verified to boot from Yamon and u-boot
Since we only focused on booting from Yamon and u-boot, we only tested
RAM configurations. However, if RedBoot support is required, we can work with
the maintainer to get a clean patch in, too.
Please let me know how I can proceed with sending the patch upstream.
Thank you!
--
Best,
Charles Chiou
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: eCos port/update for MIPS malta & sead3 platforms
2012-12-03 12:50 eCos port/update for MIPS malta & sead3 platforms Chiou, Charles
@ 2012-12-03 14:58 ` John Dallaway
2012-12-06 7:23 ` Chiou, Charles
0 siblings, 1 reply; 3+ messages in thread
From: John Dallaway @ 2012-12-03 14:58 UTC (permalink / raw)
To: charleschiou; +Cc: eCos development list
Charles
Thank you for getting in touch.
On 03/12/12 12:49, Chiou, Charles wrote:
> I would like to submit patches to update the support for MIPS platforms on the
> boards Malta and SEAD3.
That's great news.
> Specifically, the patches will:
>
> - Update outdated drivers for proper hardware support on modern malta
> - Support the SEAD3 board
> - Retain compatibility with QEMU's malta emulator
I have experimented with QEMU's Malta emulation and the eCos
malta_mips32_4kc target in the past. I was able to boot RedBoot but
QEMU's PCI support (required for eCos/RedBoot networking) seemed to be
broken. Is this working now?
> - Support the newest mips-sde-elf-gcc toolchain (Sourcery CodeBench Lite 2012.03-64)
Does your current eCos code continue to build with the eCos
mipsisa32-elf toolchain (GCC 4.3.2)?
> Since we only focused on booting from Yamon and u-boot, we only tested
> RAM configurations. However, if RedBoot support is required, we can work with
> the maintainer to get a clean patch in, too.
It would be good to support RedBoot, certainly we would wish to avoid
breaking the existing RedBoot support for MIPS Malta.
> Please let me know how I can proceed with sending the patch upstream.
The procedure for contributing to eCos (via a Bugzilla report) is
described at:
http://ecos.sourceware.org/fom-serv/ecos/cache/45.html
John Dallaway
eCos maintainer
http://www.dallaway.org.uk/john
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: eCos port/update for MIPS malta & sead3 platforms
2012-12-03 14:58 ` John Dallaway
@ 2012-12-06 7:23 ` Chiou, Charles
0 siblings, 0 replies; 3+ messages in thread
From: Chiou, Charles @ 2012-12-06 7:23 UTC (permalink / raw)
To: John Dallaway; +Cc: eCos development list
Hi John,
> > Specifically, the patches will:
> >
> > - Update outdated drivers for proper hardware support on modern
> malta
> > - Support the SEAD3 board
> > - Retain compatibility with QEMU's malta emulator
>
> I have experimented with QEMU's Malta emulation and the eCos
> malta_mips32_4kc target in the past. I was able to boot RedBoot but QEMU's
> PCI support (required for eCos/RedBoot networking) seemed to be broken. Is
> this working now?
Yes, we've fixed this problem. The QEMU and real hardware addresses are different, but we've created different configs so that both are supported.
>
> > - Support the newest mips-sde-elf-gcc toolchain (Sourcery
> > CodeBench Lite 2012.03-64)
>
> Does your current eCos code continue to build with the eCos mipsisa32-elf
> toolchain (GCC 4.3.2)?
No. Building with mipsisa32-elf hasn't been verified. I'll give it a try.
> > Since we only focused on booting from Yamon and u-boot, we only tested
> > RAM configurations. However, if RedBoot support is required, we can
> > work with the maintainer to get a clean patch in, too.
>
> It would be good to support RedBoot, certainly we would wish to avoid
> breaking the existing RedBoot support for MIPS Malta.
Ok, I'll try with RedBoot, too.
> > Please let me know how I can proceed with sending the patch upstream.
>
> The procedure for contributing to eCos (via a Bugzilla report) is described at:
>
> http://ecos.sourceware.org/fom-serv/ecos/cache/45.html
I'll send the existing patch as is and get some feedback while the items mentioned above are being investigated from our end.
Thank you!
--
Best,
Charles Chiou
^ permalink raw reply [flat|nested] 3+ messages in thread
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2012-12-03 12:50 eCos port/update for MIPS malta & sead3 platforms Chiou, Charles
2012-12-03 14:58 ` John Dallaway
2012-12-06 7:23 ` Chiou, Charles
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