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| author | Catalin Marinas <catalin.marinas@arm.com> | 2009-05-30 15:00:18 +0200 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2009-05-30 15:00:18 +0200 |
| commit | 26584853a44c58f3d6ac7360d697a2ddcd1a3efa (patch) | |
| tree | a47156d781c6207d316746a056a81ca82b90d452 /arch/arm/kernel/entry-common.S | |
| parent | RealView: Move the IRQ_* definitions out of the board-*.h files (diff) | |
| download | linux-26584853a44c58f3d6ac7360d697a2ddcd1a3efa.tar.xz linux-26584853a44c58f3d6ac7360d697a2ddcd1a3efa.zip | |
Add core support for ARMv6/v7 big-endian
Starting with ARMv6, the CPUs support the BE-8 variant of big-endian
(byte-invariant). This patch adds the core support:
- setting of the BE-8 mode via the CPSR.E register for both kernel and
user threads
- big-endian page table walking
- REV used to rotate instructions read from memory during fault
processing as they are still little-endian format
- Kconfig and Makefile support for BE-8. The --be8 option must be passed
to the final linking stage to convert the instructions to
little-endian
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/kernel/entry-common.S')
| -rw-r--r-- | arch/arm/kernel/entry-common.S | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S index b55cb0331809..366e5097a41a 100644 --- a/arch/arm/kernel/entry-common.S +++ b/arch/arm/kernel/entry-common.S @@ -210,6 +210,9 @@ ENTRY(vector_swi) A710( teq ip, #0x0f000000 ) A710( bne .Larm710bug ) #endif +#ifdef CONFIG_CPU_ENDIAN_BE8 + rev r10, r10 @ little endian instruction +#endif #elif defined(CONFIG_AEABI) |