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Heiko Schocher authored
check for U-Boot SPL signature only if SPL really has a serial output. So check if CONFIG_SPL_SERIAL_SUPPORT is active in board config. Signed-off-by: Heiko Schocher <hs@denx.de> Tested-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Stephen Warren <swarren@nvidia.com>
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