amdfwtool: Add SPL support

SPL: Security Patch Level
The data in SPL is used for FW anti-rollback, preventing rollback of
platform level firmware to older version that are deemed vulnerable
from a security point of view.

BUG=b:216096562

Change-Id: I4665f2372ccd599ab835c8784da08cde5558a795
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61426
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
diff --git a/util/amdfwtool/amdfwtool.c b/util/amdfwtool/amdfwtool.c
index fb6769a..1d5db12 100644
--- a/util/amdfwtool/amdfwtool.c
+++ b/util/amdfwtool/amdfwtool.c
@@ -256,6 +256,7 @@
 	{ .type = AMD_FW_DRTM_TA, .level = PSP_LVL2 },
 	{ .type = AMD_FW_KEYDB_BL, .level = PSP_BOTH },
 	{ .type = AMD_FW_KEYDB_TOS, .level = PSP_LVL2 },
+	{ .type = AMD_FW_SPL, .level = PSP_LVL2 },
 	{ .type = AMD_FW_DMCU_ERAM, .level = PSP_LVL2 },
 	{ .type = AMD_FW_DMCU_ISR, .level = PSP_LVL2 },
 	{ .type = AMD_RPMC_NVRAM, .level = PSP_LVL2 },
diff --git a/util/amdfwtool/amdfwtool.h b/util/amdfwtool/amdfwtool.h
index 2ffbfc6..b14a437 100644
--- a/util/amdfwtool/amdfwtool.h
+++ b/util/amdfwtool/amdfwtool.h
@@ -48,6 +48,7 @@
 	AMD_FW_PSP_VERSTAGE = 0x52,
 	AMD_FW_VERSTAGE_SIG = 0x53,
 	AMD_RPMC_NVRAM = 0x54,
+	AMD_FW_SPL = 0x55,
 	AMD_FW_DMCU_ERAM = 0x58,
 	AMD_FW_DMCU_ISR = 0x59,
 	AMD_FW_PSP_BOOTLOADER_AB = 0x73,
diff --git a/util/amdfwtool/data_parse.c b/util/amdfwtool/data_parse.c
index 8f93183..6814346 100644
--- a/util/amdfwtool/data_parse.c
+++ b/util/amdfwtool/data_parse.c
@@ -282,6 +282,9 @@
 	} else if (strcmp(fw_name, "KEYDB_TOS_FILE") == 0) {
 		fw_type = AMD_FW_KEYDB_TOS;
 		subprog = 0;
+	} else if (strcmp(fw_name, "SPL_TABLE_FILE") == 0) {
+		fw_type = AMD_FW_SPL;
+		subprog = 0;
 	} else if (strcmp(fw_name, "DMCUERAMDCN21_FILE") == 0) {
 		fw_type = AMD_FW_DMCU_ERAM;
 		subprog = 0;