From mboxrd@z Thu Jan  1 00:00:00 1970
From: linux@arm.linux.org.uk (Russell King - ARM Linux)
Date: Mon, 3 Dec 2012 17:25:53 +0000
Subject: [PATCH] nommu: Enable the strict alignment (CR_A) bit only if
 ARCH < v6
In-Reply-To: <50BCD6DB.2030200@st.com>
References: <1354187042-28568-1-git-send-email-armando.visconti@st.com>
 <50BCD6DB.2030200@st.com>
Message-ID: <20121203172553.GC14363@n2100.arm.linux.org.uk>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Mon, Dec 03, 2012 at 05:44:11PM +0100, Armando Visconti wrote:
> On 11/29/2012 12:04 PM, Armando VISCONTI wrote:
>> This patch keeps disabled the strict alignment CP15 bit for
>> all armv6 and armv7 processor without the mmu. This behaviour
>> is now same as in the mmu case.
>>
>> Signed-off-by: Armando Visconti<armando.visconti@st.com>
>> ---
>>   arch/arm/kernel/head-nommu.S |    2 +-
>>   1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S
>> index 278cfc1..2c228a0 100644
>> --- a/arch/arm/kernel/head-nommu.S
>> +++ b/arch/arm/kernel/head-nommu.S
>> @@ -68,7 +68,7 @@ __after_proc_init:
>>   	 * CP15 system control register value returned in r0 from
>>   	 * the CPU init function.
>>   	 */
>> -#ifdef CONFIG_ALIGNMENT_TRAP
>> +#if defined(CONFIG_ALIGNMENT_TRAP)&&  __LINUX_ARM_ARCH__<  6
>>   	orr	r0, r0, #CR_A
>>   #else
>>   	bic	r0, r0, #CR_A
>
> Any feedback on this simple patch?

Well, it brings the nommu version into line with the mmu version, so
it's sensible.  Please put it in the patch system, thanks.