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From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH 7/9] ARM: move exception vectors away from start of binary
Date: Tue, 20 Dec 2011 15:07:45 +0100	[thread overview]
Message-ID: <20111220140745.GG7899@game.jcrosoft.org> (raw)
In-Reply-To: <1324133529-2036-8-git-send-email-s.hauer@pengutronix.de>

On 15:52 Sat 17 Dec     , Sascha Hauer wrote:
> Traditionally U-Boot and barebox have the exception vectors at
> the start of the binary. There is no real reason in doing so,
> because in the majority of cases this data will not be at 0x0
> where it could be used as vectors directly anyway.
> This patch puts the vectors into a separate linker section and
> defines an head function which is placed at the start of the
> image instead. Putting this in a separate function also has
> the advantage that it can be placed at the start of images
> which require an additional header like several Freescale i.MX
> images. As the head function contains the barebox arm magic
> those images can now also be detected aas barebox images.
> 
> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
> ---
>  arch/arm/boards/eukrea_cpuimx25/eukrea_cpuimx25.c  |    3 ++-
>  arch/arm/boards/eukrea_cpuimx35/flash_header.c     |    3 ++-
>  arch/arm/boards/eukrea_cpuimx51/flash_header.c     |    3 ++-
>  arch/arm/boards/freescale-mx25-3-stack/3stack.c    |    3 ++-
>  .../boards/freescale-mx35-3-stack/flash_header.c   |    3 ++-
>  arch/arm/boards/freescale-mx51-pdk/flash_header.c  |    3 ++-
>  arch/arm/boards/freescale-mx53-loco/flash_header.c |    3 ++-
>  arch/arm/boards/freescale-mx53-smd/flash_header.c  |    3 ++-
>  arch/arm/cpu/mmu.c                                 |    4 ++--
>  arch/arm/cpu/start.c                               |   14 +++++++-------
>  arch/arm/include/asm/barebox-arm-head.h            |   17 +++++++++++++++++
>  arch/arm/include/asm/barebox-arm.h                 |    2 ++
>  arch/arm/lib/barebox.lds.S                         |    5 ++++-
>  13 files changed, 48 insertions(+), 18 deletions(-)
>  create mode 100644 arch/arm/include/asm/barebox-arm-head.h
you need to update the rm9200 too

Best Regards,
J.

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  parent reply	other threads:[~2011-12-20 14:12 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-17 14:52 Thumb-2 support Sascha Hauer
2011-12-17 14:52 ` [PATCH 1/9] ARM i.MX5: prepare to add a imx51_lowlevel_init Sascha Hauer
2011-12-18 14:03   ` Eric Bénard
2011-12-19 10:18   ` Sascha Hauer
2011-12-17 14:52 ` [PATCH 2/9] ARM i.MX51: implement " Sascha Hauer
2011-12-17 14:52 ` [PATCH 3/9] ARM i.MX51 babbage: use generic lowlevel init function Sascha Hauer
2011-12-17 14:52 ` [PATCH 4/9] ARM eukrea i.MX51: use generic lowlevel init Sascha Hauer
2011-12-17 14:52 ` [PATCH 5/9] ARM: update string functions from Linux Kernel Sascha Hauer
2011-12-17 14:52 ` [PATCH 6/9] ARM cache-armv7: use thumb-2 instructions where necessary Sascha Hauer
2011-12-17 14:52 ` [PATCH 7/9] ARM: move exception vectors away from start of binary Sascha Hauer
2011-12-18 23:43   ` Peter Korsgaard
2011-12-20 14:07   ` Jean-Christophe PLAGNIOL-VILLARD [this message]
2011-12-21 10:09     ` Sascha Hauer
2012-01-01  4:37   ` Jean-Christophe PLAGNIOL-VILLARD
2012-01-02 14:13     ` Sascha Hauer
2012-01-02 15:09       ` Jean-Christophe PLAGNIOL-VILLARD
2012-01-23 12:07         ` Sascha Hauer
2012-01-24  4:39           ` Jean-Christophe PLAGNIOL-VILLARD
2011-12-17 14:52 ` [PATCH 8/9] ARM: get runtime offset of board_init_lowlevel_return by using separate section Sascha Hauer
2011-12-17 14:52 ` [PATCH 9/9] ARM: Allow to compile in thumb-2 mode Sascha Hauer

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