[coreboot-gerrit] Change in coreboot[master]: ifdtool: dump all PCH Straps

Thomas Heijligen (Code Review) gerrit at coreboot.org
Tue Mar 20 13:14:49 CET 2018


Thomas Heijligen has uploaded this change for review. ( https://review.coreboot.org/25296


Change subject: ifdtool: dump all PCH Straps
......................................................................

ifdtool: dump all PCH Straps

The length of the PCH Strap is defined in FLMAP1 as ISL.
Use this value to dump all PCH Straps.
Set MAX_PCHSTRP to 0x58 (Skylake-H), the lagest value known to me.

Change-Id: I56c02c00923e018bbd6a0409a08715f39b854d0a
Signed-off-by: Thomas Heijligen <src at posteo.de>
---
M util/ifdtool/ifdtool.c
M util/ifdtool/ifdtool.h
2 files changed, 7 insertions(+), 5 deletions(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/96/25296/1

diff --git a/util/ifdtool/ifdtool.c b/util/ifdtool/ifdtool.c
index 8397f5c..4fade18 100644
--- a/util/ifdtool/ifdtool.c
+++ b/util/ifdtool/ifdtool.c
@@ -411,11 +411,13 @@
 		(fcba->flpb & 0xfff) << 12);
 }
 
-static void dump_fpsba(const fpsba_t *fpsba)
+static void dump_fpsba(const fpsba_t *fpsba, const uint32_t isl)
 {
-	unsigned int i;
 	printf("Found PCH Strap Section\n");
-	for (i = 0; i < ARRAY_SIZE(fpsba->pchstrp); i++)
+	if (isl > MAX_PCHSTRP)
+		printf("PCH Strap Length is bigger than known\n");
+	uint32_t i;
+	for (i = 0; i < isl; i++)
 		printf("PCHSTRP%u:%s 0x%08x\n", i,
 		       i < 10 ? " " : "", fpsba->pchstrp[i]);
 	printf("\n");
@@ -622,7 +624,7 @@
 	if (frba && fcba && fpsba && fmba && fmsba) {
 		dump_frba(frba);
 		dump_fcba(fcba);
-		dump_fpsba(fpsba);
+		dump_fpsba(fpsba, (fdb->flmap1 >> 24) & 0xff);
 		dump_fmba(fmba);
 		dump_fmsba(fmsba);
 	} else {
diff --git a/util/ifdtool/ifdtool.h b/util/ifdtool/ifdtool.h
index cd5af79..bbb94f0 100644
--- a/util/ifdtool/ifdtool.h
+++ b/util/ifdtool/ifdtool.h
@@ -73,7 +73,7 @@
 } __attribute__((packed)) fcba_t;
 
 // pch strap
-#define MAX_PCHSTRP 18
+#define MAX_PCHSTRP 0x58
 
 typedef struct {
 	uint32_t pchstrp[MAX_PCHSTRP];

-- 
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I56c02c00923e018bbd6a0409a08715f39b854d0a
Gerrit-Change-Number: 25296
Gerrit-PatchSet: 1
Gerrit-Owner: Thomas Heijligen <src at posteo.de>
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