[U-Boot] [PATCH] lib/crc8: Add crc start value

[Simon Glass]

On 8 April 2016 at 07:56, Stefan Roese <sr at denx.de> wrote:
>
> To make the usage of this function more flexible, lets add the CRC start
> value as parameter to this function. This way it can be used by other
> functions requiring different start values than 0 as well.
>
> For non-zero CRC start values to work, I've reworked the function a bit.
> The new implementation is copied from the Linux version in
> drivers/i2c/i2c-core.c / i2c_smbus_pec(). Which supports non-zero
> CRC stating values.
>
> I've double-checked that the results for zero starting values are
> identical to the results from the original version of this function.
>
> Signed-off-by: Stefan Roese <sr at denx.de>
> Cc: Simon Glass <sjg at chromium.org>
> ---
>  drivers/tpm/tpm_tis_sandbox.c |  2 +-
>  include/linux/crc8.h          |  3 ++-
>  lib/crc8.c                    | 33 ++++++++++++++++++++-------------
>  3 files changed, 23 insertions(+), 15 deletions(-)


Reviewed-by: Simon Glass <sjg at chromium.org>