soc/intel/alderlake: Add validity for TBT firmware authentication
After Thunderbolt firmware is downloaded to IMR, its authentication
validity needs to be checked. This change adds the TBT firmware IMR
status register offset and its authentication valid bit for
valid_tbt_auth function usage.
BUG=b:188695995
TEST=Built coreboot image successfully.
Signed-off-by: John Zhao <john.zhao@intel.com>
Change-Id: I742a00b6b58c45c1261f06b06a94346ad0a74829
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54888
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/intel/alderlake/include/soc/tcss.h b/src/soc/intel/alderlake/include/soc/tcss.h
index 713528b..014e307 100644
--- a/src/soc/intel/alderlake/include/soc/tcss.h
+++ b/src/soc/intel/alderlake/include/soc/tcss.h
@@ -3,6 +3,10 @@
#ifndef _SOC_TCSS_H_
#define _SOC_TCSS_H_
+/* Thunderbolt firmware IMR status */
+#define IOM_CSME_IMR_TBT_STATUS 0x14
+#define TBT_VALID_AUTHENTICATION (1 << 30)
+
/* IOM aux bias control registers in REGBAR MMIO space */
#define IOM_AUX_BIAS_CTRL_PULLUP_OFFSET_0 0x1070
#define IOM_AUX_BIAS_CTRL_PULLUP_OFFSET(x) (IOM_AUX_BIAS_CTRL_PULLUP_OFFSET_0 + (x) * 4)