Re: [PATCH] crypto: stm32 - Add CRC32 support for STM32F4XX

From: Rob Herring
Date: Mon May 22 2017 - 20:30:06 EST


On Wed, May 17, 2017 at 12:18:50AM +0300, Cosar Dindar wrote:
> This patch series add hardware CRC32 ("Ethernet") calculation support
> for STMicroelectronics STM32F4XX series devices.
>
> As an hardware limitation polynomial and key setting are not supported
> as they are fixed as 0x4C11DB7 (poly) and 0xFFFFFFFF (key).
>
> CRC32C Castagnoli algorithm is not supported also.
> Module is tested on STM32F429-disco board with crypto testmgr using
> cases within the key 0xFFFFFFFF.
>
> Signed-off-by: Cosar Dindar <cosardindar@xxxxxxxxx>
> ---
> .../devicetree/bindings/crypto/st,stm32-crc.txt | 4 +-
> arch/arm/boot/dts/stm32429i-eval.dts | 4 ++
> arch/arm/boot/dts/stm32f429-disco.dts | 4 ++
> arch/arm/boot/dts/stm32f429.dtsi | 7 +++
> arch/arm/boot/dts/stm32f469-disco.dts | 4 ++
> drivers/crypto/stm32/stm32_crc32.c | 68 ++++++++++++++++++----
> 6 files changed, 79 insertions(+), 12 deletions(-)

Acked-by: Rob Herring <robh@xxxxxxxxxx>