commit 26584853a44c58f3d6ac7360d697a2ddcd1a3efa
author Catalin Marinas <catalin.marinas@arm.com> Sat May 30 14:00:18 2009 +0100
committer Catalin Marinas <catalin.marinas@arm.com> Sat May 30 14:00:18 2009 +0100
tree a47156d781c6207d316746a056a81ca82b90d452
parent ee8c9571191e588ede9a220ded807e33c4897d91

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>

arch/arm/kernel/process.c

diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index c3265a2..1585423 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -365,7 +365,7 @@
 	regs.ARM_r2 = (unsigned long)fn;
 	regs.ARM_r3 = (unsigned long)do_exit;
 	regs.ARM_pc = (unsigned long)kernel_thread_helper;
-	regs.ARM_cpsr = SVC_MODE;
+	regs.ARM_cpsr = SVC_MODE | PSR_ENDSTATE;
 
 	return do_fork(flags|CLONE_VM|CLONE_UNTRACED, 0, &regs, 0, NULL, NULL);
 }