From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [GIT PULL] Renesas ARM-based SoC defconfig for v3.8
Date: Mon, 22 Oct 2012 14:12:19 +0000 [thread overview]
Message-ID: <201210221412.19486.arnd@arndb.de> (raw)
In-Reply-To: <20121022015126.GA10587@verge.net.au>
(adding Nico, who did a lot of the work to get rid of PLAT_PHYS_OFFSET)
On Monday 22 October 2012, Simon Horman wrote:
> On Mon, Oct 22, 2012 at 09:33:51AM +0900, Simon Horman wrote:
> > On Fri, Oct 19, 2012 at 08:18:50AM +0000, Arnd Bergmann wrote:
> > > On Friday 19 October 2012, Simon Horman wrote:
> > > > * A more significant problem seems to be the use of CONFIG_MEMORY_START
> > > > to define PLAT_PHYS_OFFSET in arch/arm/mach-shmobile/include/mach/memory.h
> > > >
> > > > I'm not sure that I see an easy way to get around this one.
> > >
> > > ARM_PATCH_PHYS_VIRT should take care of this, have you tried it?
>
> I believe that this leaves mach-shmobile with three areas
> where CONFIG_MEMORY_START/PLAT_PHYS_OFFSET is used.
Hmm, I just noticed that in fact shmobile is the only remaining
platform that uses CONFIG_MEMORY_START with a per-board or per-soc
setting.
> * arch/arm/mach-shmobile/headsmp.S
>
> This uses PLAT_PHYS_OFFSET.
>
> I believe this can be replaced with a run-time calculation. Though I
> haven't thought about the details yet.
>
> * arch/arm/boot/compressed/head-shmobile.S
>
> This makes use of CONFIG_MEMORY_START.
>
> This is only used if CONFIG_ZBOOT_ROM is set.
>
> I'm unsure if this can be replaced with a run-time calculation or not.
> But regardless it is only used if CONFIG_ZBOOT_ROM is set, which is not
> the default at this time.
Right, you can probably make CONFIG_ZBOOT_ROM_MMCIF and
CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI depend on !ARM_PATCH_PHYS_VIRT
> * arch/arm/mach-shmobile/Makefile.boot
>
> This makes use of CONFIG_MEMORY_START to set zreladdr.
>
> I believe that the solution to this is to make use of CONFIG_AUTO_ZRELADDR.
> However, it is not yet clear to me how that can be used in conjunction
> with a uImage. As I understand it the boot loader on many of our boards,
> including the Marzen board which is my first target for this work, boot
> uImage imagess.
If this doesn't work, we probably also need to find a solution to
build multiple uImage files from the same vmlinux when building a
multiplatform kernel.
Arnd
WARNING: multiple messages have this Message-ID (diff)
From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [GIT PULL] Renesas ARM-based SoC defconfig for v3.8
Date: Mon, 22 Oct 2012 14:12:19 +0000 [thread overview]
Message-ID: <201210221412.19486.arnd@arndb.de> (raw)
In-Reply-To: <20121022015126.GA10587@verge.net.au>
(adding Nico, who did a lot of the work to get rid of PLAT_PHYS_OFFSET)
On Monday 22 October 2012, Simon Horman wrote:
> On Mon, Oct 22, 2012 at 09:33:51AM +0900, Simon Horman wrote:
> > On Fri, Oct 19, 2012 at 08:18:50AM +0000, Arnd Bergmann wrote:
> > > On Friday 19 October 2012, Simon Horman wrote:
> > > > * A more significant problem seems to be the use of CONFIG_MEMORY_START
> > > > to define PLAT_PHYS_OFFSET in arch/arm/mach-shmobile/include/mach/memory.h
> > > >
> > > > I'm not sure that I see an easy way to get around this one.
> > >
> > > ARM_PATCH_PHYS_VIRT should take care of this, have you tried it?
>
> I believe that this leaves mach-shmobile with three areas
> where CONFIG_MEMORY_START/PLAT_PHYS_OFFSET is used.
Hmm, I just noticed that in fact shmobile is the only remaining
platform that uses CONFIG_MEMORY_START with a per-board or per-soc
setting.
> * arch/arm/mach-shmobile/headsmp.S
>
> This uses PLAT_PHYS_OFFSET.
>
> I believe this can be replaced with a run-time calculation. Though I
> haven't thought about the details yet.
>
> * arch/arm/boot/compressed/head-shmobile.S
>
> This makes use of CONFIG_MEMORY_START.
>
> This is only used if CONFIG_ZBOOT_ROM is set.
>
> I'm unsure if this can be replaced with a run-time calculation or not.
> But regardless it is only used if CONFIG_ZBOOT_ROM is set, which is not
> the default at this time.
Right, you can probably make CONFIG_ZBOOT_ROM_MMCIF and
CONFIG_ZBOOT_ROM_SH_MOBILE_SDHI depend on !ARM_PATCH_PHYS_VIRT
> * arch/arm/mach-shmobile/Makefile.boot
>
> This makes use of CONFIG_MEMORY_START to set zreladdr.
>
> I believe that the solution to this is to make use of CONFIG_AUTO_ZRELADDR.
> However, it is not yet clear to me how that can be used in conjunction
> with a uImage. As I understand it the boot loader on many of our boards,
> including the Marzen board which is my first target for this work, boot
> uImage imagess.
If this doesn't work, we probably also need to find a solution to
build multiple uImage files from the same vmlinux when building a
multiplatform kernel.
Arnd
next prev parent reply other threads:[~2012-10-22 14:12 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-17 4:38 [GIT PULL] Renesas ARM-based SoC defconfig for v3.8 Simon Horman
2012-10-17 4:38 ` Simon Horman
2012-10-17 4:38 ` [PATCH 1/2] ARM: shmobile: mackerel: defconfig update Simon Horman
2012-10-17 4:38 ` Simon Horman
2012-10-17 4:38 ` [PATCH 2/2] ARM: shmobile: armadillo800eva: enable L2X0 cache on defconfig Simon Horman
2012-10-17 4:38 ` Simon Horman
2012-10-17 13:42 ` [GIT PULL] Renesas ARM-based SoC defconfig for v3.8 Arnd Bergmann
2012-10-17 13:42 ` Arnd Bergmann
2012-10-18 0:58 ` Simon Horman
2012-10-18 0:58 ` Simon Horman
2012-10-18 7:29 ` Arnd Bergmann
2012-10-18 7:29 ` Arnd Bergmann
2012-10-18 8:13 ` Simon Horman
2012-10-18 8:13 ` Simon Horman
2012-10-19 3:09 ` Simon Horman
2012-10-19 3:09 ` Simon Horman
2012-10-19 8:18 ` Arnd Bergmann
2012-10-19 8:18 ` Arnd Bergmann
2012-10-22 0:33 ` Simon Horman
2012-10-22 0:33 ` Simon Horman
2012-10-22 1:51 ` Simon Horman
2012-10-22 1:51 ` Simon Horman
2012-10-22 14:12 ` Arnd Bergmann [this message]
2012-10-22 14:12 ` Arnd Bergmann
2012-10-22 18:20 ` Nicolas Pitre
2012-10-22 18:20 ` Nicolas Pitre
2012-10-30 7:45 ` Simon Horman
2012-10-30 7:45 ` Simon Horman
2012-10-30 21:41 ` Arnd Bergmann
2012-10-30 21:41 ` Arnd Bergmann
2012-11-01 0:46 ` Simon Horman
2012-11-01 0:46 ` Simon Horman
2013-01-10 1:23 ` [GIT PULL] Renesas ARM-based SoC defconfig for v3.9 Simon Horman
2013-01-10 1:23 ` Simon Horman
2013-01-10 1:23 ` [PATCH 1/5] ARM: mach-shmobile: mackerel: update defconfig Simon Horman
2013-01-10 1:23 ` Simon Horman
2013-01-10 23:11 ` Olof Johansson
2013-01-10 23:11 ` Olof Johansson
2013-01-11 0:36 ` Simon Horman
2013-01-11 0:36 ` Simon Horman
2013-01-10 1:23 ` [PATCH 2/5] ARM: shmobile: fix memory size for kota2_defconfig Simon Horman
2013-01-10 1:23 ` Simon Horman
2013-01-10 1:23 ` [PATCH 3/5] ARM: mach-shmobile: kzm9g: use voltage regulators by default Simon Horman
2013-01-10 1:23 ` Simon Horman
2013-01-10 1:23 ` [PATCH 4/5] ARM: mach-shmobile: armadillo: update defconfig Simon Horman
2013-01-10 1:23 ` Simon Horman
2013-01-10 1:23 ` [PATCH 5/5] ARM: mach-shmobile: kzm9g: Enable ARM_APPENDED_DTB in defconfig Simon Horman
2013-01-10 1:23 ` Simon Horman
2013-01-16 6:37 ` [GIT PULL] Renesas ARM-based SoC v3.9 Simon Horman
2013-01-16 23:43 ` Olof Johansson
2013-01-16 23:43 ` Olof Johansson
2013-01-21 15:31 ` Laurent Pinchart
2013-01-21 15:31 ` Laurent Pinchart
2013-01-22 8:21 ` Olof Johansson
2013-01-22 8:21 ` Olof Johansson
2013-01-22 9:19 ` Paul Mundt
2013-01-22 9:19 ` Paul Mundt
2013-01-24 3:35 ` Olof Johansson
2013-01-24 3:35 ` Olof Johansson
2013-01-21 0:32 ` Simon Horman
2013-01-21 0:32 ` Simon Horman
2013-01-21 2:17 ` Olof Johansson
2013-01-21 2:17 ` Olof Johansson
2013-01-25 2:02 ` [GIT PULL] Renesas ARM-based SoC defconfig for v3.9 #2 Simon Horman
2013-01-25 2:02 ` Simon Horman
2013-01-25 2:02 ` [PATCH 1/2] ARM: mach-shmobile: armadillo: defconfig: Enable CEU Simon Horman
2013-01-25 2:02 ` Simon Horman
2013-01-25 2:02 ` [PATCH 2/2] ARM: mach-shmobile: mackerel: enable VFP in defconfig Simon Horman
2013-01-25 2:02 ` Simon Horman
2013-01-29 17:01 ` [GIT PULL] Renesas ARM-based SoC defconfig for v3.9 #2 Olof Johansson
2013-01-29 17:01 ` Olof Johansson
2013-03-18 11:53 ` [GIT PULL] Renesas ARM-based SoC defconfig updates for v3.10 Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-18 11:53 ` [PATCH 1/9] ARM: mach-shmobile: mackerel: enable MMCIF and SDHI in defconfig Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-18 11:53 ` [PATCH 2/9] ARM: mach-shmobile: mackerel: enable REGULATOR " Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-18 11:53 ` [PATCH 3/9] ARM: mach-shmobile: armadillo800eva: " Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-18 11:53 ` [PATCH 4/9] ARM: shmobile: kzm9g: defconfig: do not enable PREEMPT Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-18 11:53 ` [PATCH 5/9] ARM: shmobile: armadillo800eva: enable branch prediction on defconfig Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-18 11:53 ` [PATCH 6/9] ARM: shmobile: armadillo800eva: enable NEON " Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-18 11:53 ` [PATCH 7/9] ARM: mach-shmobile: kzm9g: do not enable REGULATOR_DUMMY in defconfig Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-18 11:53 ` [PATCH 8/9] ARM: shmobile: armadillo800eva: enable all errata for cache on defconfig Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-18 11:53 ` [PATCH 9/9] ARM: mach-shmobile: marzen: add SATA support Simon Horman
2013-03-18 11:53 ` Simon Horman
2013-03-21 16:56 ` [GIT PULL] Renesas ARM-based SoC defconfig updates for v3.10 Arnd Bergmann
2013-03-21 16:56 ` Arnd Bergmann
2013-03-22 0:46 ` Simon Horman
2013-03-22 0:46 ` Simon Horman
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