From 8428e84d42179c2a00f5f6450866e70d802d1d05 Mon Sep 17 00:00:00 2001 From: Catalin Marinas Date: Mon, 7 Nov 2011 18:05:53 +0100 Subject: ARM: 7150/1: Allow kernel unaligned accesses on ARMv6+ processors Recent gcc versions generate unaligned accesses by default on ARMv6 and later processors. This patch ensures that the SCTLR.A bit is always cleared on such processors to avoid kernel traping before alignment_init() is called. Signed-off-by: Catalin Marinas Tested-by: John Linn Acked-by: Nicolas Pitre Cc: stable@vger.kernel.org Signed-off-by: Russell King --- arch/arm/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/kernel/head.S') diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 566c54c2a1fe..08c82fd844a8 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -360,7 +360,7 @@ __secondary_data: * r13 = *virtual* address to jump to upon completion */ __enable_mmu: -#ifdef CONFIG_ALIGNMENT_TRAP +#if defined(CONFIG_ALIGNMENT_TRAP) && __LINUX_ARM_ARCH__ < 6 orr r0, r0, #CR_A #else bic r0, r0, #CR_A -- cgit v1.2.1