Re: [PATCH] ppc32: cleanup AMCC PPC4xx eval boards to better support U-Boot

3 messages, 3 authors, 2005-09-19 · open the first message on its own page

Re: [PATCH] ppc32: cleanup AMCC PPC4xx eval boards to better support U-Boot

From: Matt Porter <mporter@kernel.crashing.org>
Date: 2005-09-19 13:59:44

On Mon, Sep 19, 2005 at 01:02:14PM +0200, Stefan Roese wrote:
Hi Eugene,

On Friday 16 September 2005 18:27, Eugene Surovegin wrote:
quoted
On Fri, Sep 16, 2005 at 01:06:16PM +0200, Stefan Roese wrote:
quoted
Add U-Boot support to AMCC PPC405 eval boards (bubinga, sycamore and
walnut) and cleanup PPC440 eval boards (bamboo, ebony, luan and ocotea)
to better support U-Boot as bootloader.
In general, 44x pieces look OK, but 40x aren't. Notice, that we don't
have any #ifdef CONFIG_UBOOT in 44x sources. Let's not add them for
40x, try to replicate the same boot-wrapper approach as Matt used for
44x.
OK. I'll split the patch in two (44x and 40x stuff) so we can get the 44x 
pieces on the way.

Just to be sure: The 44x boot-wrapper approach you mention is 
"boot/simple/pibs.c"?
Yes, there's both boot/simple/pibs.c and boot/simple/openbios.c that
were created so we could have the default firmware and u-boot use the
same kernel build.

-Matt

Re: [PATCH] ppc32: cleanup AMCC PPC4xx eval boards to better support U-Boot

From: Stefan Roese <sr@denx.de>
Date: 2005-09-19 15:06:45

Hi Matt,

On Monday 19 September 2005 15:59, Matt Porter wrote:
On Mon, Sep 19, 2005 at 01:02:14PM +0200, Stefan Roese wrote:
quoted
Just to be sure: The 44x boot-wrapper approach you mention is
"boot/simple/pibs.c"?
Yes, there's both boot/simple/pibs.c and boot/simple/openbios.c that
were created so we could have the default firmware and u-boot use the
same kernel build.
Yes, that's what I thought. But Eugene mentioned, that he boots vmlinux 
without any boot-wrapper on the OpenBIOS targets (except Ebony probably). You 
would loose this possibility, if I add this wrapper and switch from OpenBIOS 
to U-Boot bd_info struct in the kernel.

Did I miss something here? How should I proceed?

Best regards,
Stefan

Re: [PATCH] ppc32: cleanup AMCC PPC4xx eval boards to better support U-Boot

From: Eugene Surovegin <hidden>
Date: 2005-09-19 17:15:02

On Mon, Sep 19, 2005 at 05:06:23PM +0200, Stefan Roese wrote:
Hi Matt,

On Monday 19 September 2005 15:59, Matt Porter wrote:
quoted
On Mon, Sep 19, 2005 at 01:02:14PM +0200, Stefan Roese wrote:
quoted
Just to be sure: The 44x boot-wrapper approach you mention is
"boot/simple/pibs.c"?
Yes, there's both boot/simple/pibs.c and boot/simple/openbios.c that
were created so we could have the default firmware and u-boot use the
same kernel build.
Yes, that's what I thought. But Eugene mentioned, that he boots vmlinux 
without any boot-wrapper on the OpenBIOS targets (except Ebony probably).
Bad phrasing on my part. What I meant was "U-Boot is different from 
OpenBIOS targets already, as with U-Boot we don't use any boot-wrapper 
like with OpenBIOS".

Sorry for confusion :).

-- 
Eugene
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