tree cce328236d6aca49467c14efe6d8e7e06849d5dd
parent 7dab692d5fa0da981db674e39e4acb278c87a3a5
author Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com> 1549830877 +0100
committer Tom Rini <trini@konsulko.com> 1550584543 -0500

spl: implement CRC check on U-Boot uImage

SPL currently does not check uImage CRCs when loading U-Boot.

This patch adds checking the uImage CRC when SPL loads U-Boot. It does
this by reusing the existing config option SPL_CRC32_SUPPORT to allow
leaving out the CRC check on boards where the additional code size or
boot time is a problem (adding the CRC check currently adds ~1.4 kByte
to flash).

The SPL_CRC32_SUPPORT config option now gets enabled by default if SPL
support for legacy images is enabled to check the CRC on all boards
that don't actively take countermeasures.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>