From: Jeroen Hofstee <jeroen@myspectrum.nl>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 3/4] ARM: use r9 for gd
Date: Sat, 17 Aug 2013 11:40:36 +0200 [thread overview]
Message-ID: <520F4514.1000804@myspectrum.nl> (raw)
In-Reply-To: <1376504746-15173-4-git-send-email-jeroen@myspectrum.nl>
On 08/14/2013 08:25 PM, Jeroen Hofstee wrote:
> To be more EABI compliant and as a preparation for building
> with clang, use the platform-specific r9 register for gd
> instead of r8.
>
> note: The FIQ is not updated since it is not used in u-boot,
> and under discussion for the time being.
>
> The following checkpatch warning is ignored:
> WARNING: Use of volatile is usually wrong: see
> Documentation/volatile-considered-harmful.txt
>
> cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
> ---
> arch/arm/config.mk | 2 +-
> arch/arm/include/asm/global_data.h | 2 +-
> arch/arm/lib/crt0.S | 16 ++++++++--------
> 3 files changed, 10 insertions(+), 10 deletions(-)
>
This patch assumes only crt0.S sets the register used for
gd in asm. I just noticed cpu/armv7/lowlevel_init.S does set gd
manually, so all users of the common board.c are likely
bricked with the patch as is. Looking into it....
Regards,
Jeroen
next prev parent reply other threads:[~2013-08-17 9:40 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-11 20:58 [U-Boot] [PATCH 0/3] ARM: use r9 for gd instead of r8 Jeroen Hofstee
2013-08-11 20:58 ` [U-Boot] [PATCH 1/3] ARM: make reserving the gd register a make variable Jeroen Hofstee
2013-08-11 20:58 ` [U-Boot] [PATCH 2/3] ARM,relocate: do not use r9 Jeroen Hofstee
2013-08-11 20:58 ` [U-Boot] [PATCH 3/3] ARM: use r9 for gd Jeroen Hofstee
2013-08-12 5:53 ` Wolfgang Denk
2013-08-12 14:44 ` Albert ARIBAUD
2013-08-12 15:23 ` Wolfgang Denk
2013-08-13 19:41 ` Jeroen Hofstee
2013-08-11 22:08 ` [U-Boot] [PATCH 0/3] ARM: use r9 for gd instead of r8 Benoît Thébaudeau
2013-08-12 5:49 ` Albert ARIBAUD
2013-08-13 19:36 ` Jeroen Hofstee
2013-08-14 18:25 ` [U-Boot] [PATCH v2 0/4] " Jeroen Hofstee
2013-08-14 18:25 ` [U-Boot] [PATCH v2 1/4] ARM: make reserving the gd register a make variable Jeroen Hofstee
2013-08-17 13:55 ` Jeroen Hofstee
2013-09-19 6:57 ` Albert ARIBAUD
2013-09-19 16:54 ` Jeroen Hofstee
2013-08-14 18:25 ` [U-Boot] [PATCH v2 2/4] ARM,relocate: do not use r9 Jeroen Hofstee
2013-08-14 18:25 ` [U-Boot] [PATCH v2 3/4] ARM: use r9 for gd Jeroen Hofstee
2013-08-17 9:40 ` Jeroen Hofstee [this message]
2013-08-17 13:51 ` Jeroen Hofstee
2013-08-19 3:08 ` Simon Glass
2013-08-19 17:32 ` Jeroen Hofstee
2013-08-21 16:22 ` Jeroen Hofstee
2013-08-21 23:44 ` Simon Glass
2013-08-14 18:25 ` [U-Boot] [PATCH v2 4/4] README: update ARM register usage Jeroen Hofstee
2013-09-21 12:04 ` [U-Boot] [PATCH v3 0/3] ARM: use r9 for gd instead of r8 Jeroen Hofstee
2013-09-21 12:04 ` [U-Boot] [PATCH v3 1/3] ARM,relocate: do not use r9 Jeroen Hofstee
2013-09-21 12:04 ` [U-Boot] [PATCH v3 2/3] ARM: use r9 for gd Jeroen Hofstee
2013-09-21 15:30 ` Jeroen Hofstee
2013-09-21 12:04 ` [U-Boot] [PATCH v3 3/3] README: update ARM register usage Jeroen Hofstee
2013-09-23 16:56 ` [U-Boot] [PATCH v3 0/3] ARM: use r9 for gd instead of r8 Albert ARIBAUD
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