From: Catalin Marinas <[email protected]> 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 <[email protected]> Tested-by: John Linn <[email protected]> Acked-by: Nicolas Pitre <[email protected]> Cc: [email protected] Signed-off-by: Russell King <[email protected]> --- arch/arm/kernel/head.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 38ccbe1..80ac180 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -158,7 +158,7 @@ __secondary_data: * registers. */ __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 -- 1.8.5 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
