From: Allen Martin <amartin@nvidia.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v8 00/15] split tegra20 arm7 code into separate SPL
Date: Wed, 15 Aug 2012 13:58:47 -0700 [thread overview]
Message-ID: <20120815205847.GE4086@nvidia.com> (raw)
In-Reply-To: <1345063472-8732-1-git-send-email-amartin@nvidia.com>
On Wed, Aug 15, 2012 at 01:44:17PM -0700, Allen Martin wrote:
> This patch series fixes a long standing problem with the tegra20
> u-boot build. Tegra20 contains an ARM7TDMI boot processor and a
> Cortex A9 main processor. Prior to this patch series this was
> accomplished by #ifdefing out any armv7 code from the early boot
> sequence and creating a single binary that runs on both both the
> ARM7TDMI and A9. This was very fragile as changes to compiler options
> or any additions or rearranging of the early boot code could add
> additional armv7 specific code causing it to fail on the ARM7TDMI.
>
> This patch series pulls all the armv4t code out into a separate SPL
> that does nothing more than initialize the A9 and transfer control to
> it. The resultint SPL and armv7 u-boot are concatenated together into
> a single image.
>
> This patch series is also available from:
> git://github.com/arm000/u-boot.git
> branch: tegra-spl-v8
>
> Changes:
> v8:
> - rebased to u-boot-tegra/master
> - added changes to work with "arm: Provide lowlevel_init C function
> wrapper for v7"
> - Moved JTAG init in SPL to earlier
> - fixed TEXT_BASE in SPL to use SPL TEXT_BASE not main u-boot
> TEXT_BASE
> - pad exception handlers in arm720t to 64 bytes with 0x12345678 to
> match armv7
Two additional changes I neglected to mention:
- added another tegra2->tegra20 rename for some new code that was
added to arch/arm/cpu/armv7/start.S
- rolled in the mkconfig fix that was breaking ARM platforms that
don't define SoC
-Allen
--
nvpublic
prev parent reply other threads:[~2012-08-15 20:58 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-15 20:44 [U-Boot] [PATCH v8 00/15] split tegra20 arm7 code into separate SPL Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 01/15] tegra20: rename tegra2 -> tegra20 Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 02/15] tegra20: move tegra20 SoC code to arch/arm/cpu/tegra20-common Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 03/15] tegra20: rename CONFIG_MACH_TEGRA_GENERIC Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 04/15] tegra20: tec: add tegra20-common-post.h Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 05/15] tegra20: make board mkdir commands unconditional Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 06/15] mkconfig: add support for SPL CPU Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 07/15] ARM: Fix arm720t SPL build Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 08/15] tegra20: remove timer_init from " Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 09/15] ARM: add tegra20 support to arm720t Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 10/15] tegra20: add u-boot-*-tegra.bin targets Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 11/15] tegra20: move SDRAM param save to later in boot Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 12/15] tegra20: enable SPL for tegra20 boards Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 13/15] arm: enable libgcc build for SPL Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 14/15] spl: fix SPL build of private libgcc Allen Martin
2012-08-15 20:44 ` [U-Boot] [PATCH v8 15/15] tegra20: Remove armv4t build flags Allen Martin
2012-08-15 20:58 ` Allen Martin [this message]
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