Re: [PATCH 2/2] ARM: exynos_defconfig: Enable s5p-secss driver
From: Krzysztof Kozlowski
Date: Fri Jan 08 2016 - 21:46:17 EST
2016-01-09 0:35 GMT+09:00 Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>:
> Hello Krzysztof,
> On 01/06/2016 11:15 PM, Krzysztof Kozlowski wrote:
>> The Exynos SoC provides a Security SubSystem block for accelerating some
>> cryptographic operations. Enable the driver for it - s5p-secss to
>> utilize the hardware acceleration.
>> Currently the s5p-secss driver supports AES in CBC and ECB modes.
>> However on Odroid XU4 (Exynos5422) and Trats2 (Exynos4412) boards this
>> change introduces one booting error:
>> alg: skcipher: encryption failed on chunk test 1 for ecb-aes-s5p: ret=22
>> The cbc-aes-s5p properly registers itself and passes self-tests.
>> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
>> arch/arm/configs/exynos_defconfig | 1 +
>> 1 file changed, 1 insertion(+)
>> diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
>> index 0aee1e035be9..c47c7e069873 100644
>> --- a/arch/arm/configs/exynos_defconfig
>> +++ b/arch/arm/configs/exynos_defconfig
>> @@ -240,6 +240,7 @@ CONFIG_DEBUG_RT_MUTEXES=y
> I noticed that this is not enabled in multi_v7_defconfig.
> Are you planing to do it as well?
Thanks for feedback and review. I noticed that as well but I am not
convinced because one of two of supported algorithms fails the
tests... which makes 50% of driver non-working. :) Maybe it is
harmless - just pollutes the dmesg... Maybe after fixing it.