From aa76a7e472e34bc59554f9932d611b1047d24590 Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Fri, 5 Sep 2014 10:40:11 +0800 Subject: ENGR00329484-2 ARM:MX6: Clear Align bit in SCTLR This problem is found when debugging QuadSPI. When "A" bit is enabled, unaligned access will cause data abort exception. Actually, we do not want this exception. So clear the align bit for MX6 SOCs. Tested this code with android team colleague and did not find problem. Signed-off-by: Peng Fan --- arch/arm/cpu/armv7/mx6/soc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 4787fb2..2fae6f4 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -477,6 +477,9 @@ static void imx_set_pcie_phy_power_down(void) int arch_cpu_init(void) { + /* Clear the Align bit in SCTLR */ + set_cr(get_cr() & ~CR_A); + #if !defined(CONFIG_MX6SX) && !defined(CONFIG_MX6SL) /* * imx6sl doesn't have pcie at all. -- cgit v1.1