On Sun, Jul 19, 2026 at 10:13:48PM -0600, James Hilliard wrote:
> The hash uclass is currently keyed only by CONFIG_DM_HASH, so SPL cannot
> enable UCLASS_HASH independently. Any SPL code using hash_digest*() has to
> rely on U-Boot proper also enabling DM_HASH, and the FIT hash path selects
> the driver-model implementation with a non-phase-aware preprocessor check.
> 
> Add SPL_DM_HASH, build the hash uclass from CONFIG_$(PHASE_)DM_HASH and use
> CONFIG_IS_ENABLED(DM_HASH) when selecting the FIT hash implementation. This
> lets SPL FIT verification use a UCLASS_HASH provider without requiring the
> U-Boot proper hash uclass.
> 
> Reviewed-by: Simon Glass <[email protected]>
> Signed-off-by: James Hilliard <[email protected]>
> ---
> Changes v2 -> v3:
>   - Remove the bare software-hash fallback scope
>     (suggested by Simon Glass)
>   - Document that SPL_DM_HASH needs a hardware provider unless a
>     phase-aware software hash provider is added
>     (suggested by Simon Glass)
> ---
>  boot/image-fit.c             | 50 
> +++++++++++++++++++++++---------------------
>  drivers/crypto/hash/Kconfig  | 13 ++++++++++++
>  drivers/crypto/hash/Makefile |  2 +-
>  3 files changed, 40 insertions(+), 25 deletions(-)

The changes in here make me worry a bit about platforms relying on the
current behavior (because of the Makefile change), did you put this
through CI? https://docs.u-boot-project.org/en/latest/develop/ci_testing.html

-- 
Tom

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