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Heiko Schocher <hs@nabladev.com> says: Add SM3 secure hash, as specified by OSCCA GM/T 0004-2012 SM3 and described at https://datatracker.ietf.org/doc/html/draft-sca-cfrg-sm3-02 TPMv2 defines hash algo sm3_256, which is currently not supported and prevented TPMv2 chip with newer firmware to work with U-Boot. Seen this on a ST33TPHF2XI2C u-boot=> tpm2 init u-boot=> tpm2 autostart tpm2_get_pcr_info: too many pcrs: 5 Error: -90 u-boot=> Implement sm3 hash, so we can fix this problem. Link: https://lore.kernel.org/r/20251118043042.27726-1-hs@nabladev.com