[coreboot-gerrit] Change in coreboot[master]: nb/intel/nehalem: Fix DEVEN defines

Patrick Rudolph (Code Review) gerrit at coreboot.org
Thu Jun 14 17:01:31 CEST 2018


Patrick Rudolph has uploaded this change for review. ( https://review.coreboot.org/27104


Change subject: nb/intel/nehalem: Fix DEVEN defines
......................................................................

nb/intel/nehalem: Fix DEVEN defines

The DEVEN defines are wrong, but weren't used at all.
Fix them as they are needed by the hybrid_graphics_driver and
use the defines instead of magic values.

Tested on Lenovo T410: The IGD turns on with the correct value.

Change-Id: Idf9fc0115de5c72f7d5d88cbb09ae1d2fee0afd0
Signed-off-by: Patrick Rudolph <patrick.rudolph at 9elements.com>
---
M src/northbridge/intel/nehalem/early_init.c
M src/northbridge/intel/nehalem/nehalem.h
2 files changed, 5 insertions(+), 5 deletions(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/04/27104/1

diff --git a/src/northbridge/intel/nehalem/early_init.c b/src/northbridge/intel/nehalem/early_init.c
index 319d81d..1424b91 100644
--- a/src/northbridge/intel/nehalem/early_init.c
+++ b/src/northbridge/intel/nehalem/early_init.c
@@ -151,7 +151,8 @@
 	nehalem_setup_bars();
 
 	/* Device Enable */
-	pci_write_config32(PCI_DEV(0, 0, 0), D0F0_DEVEN, 9 | 2);
+	pci_write_config32(PCI_DEV(0, 0, 0), D0F0_DEVEN,
+			   DEVEN_IGD | DEVEN_PEG10 | DEVEN_HOST);
 
 	early_cpu_init();
 
diff --git a/src/northbridge/intel/nehalem/nehalem.h b/src/northbridge/intel/nehalem/nehalem.h
index 33df32f..bbdd290 100644
--- a/src/northbridge/intel/nehalem/nehalem.h
+++ b/src/northbridge/intel/nehalem/nehalem.h
@@ -69,11 +69,10 @@
 #define D0F0_MCHBAR_HI 0x4c
 #define D0F0_GGC 0x52
 #define D0F0_DEVEN 0x54
+/* Note: Intel's datasheet is broken. Assume the following values are correct */
 #define  DEVEN_PEG60	(1 << 13)
-#define  DEVEN_IGD	(1 << 4)
-#define  DEVEN_PEG10	(1 << 3)
-#define  DEVEN_PEG11	(1 << 2)
-#define  DEVEN_PEG12	(1 << 1)
+#define  DEVEN_IGD	(1 << 3)
+#define  DEVEN_PEG10	(1 << 1)
 #define  DEVEN_HOST	(1 << 0)
 #define D0F0_PCIEXBAR_LO 0x60
 #define D0F0_PCIEXBAR_HI 0x64

-- 
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Idf9fc0115de5c72f7d5d88cbb09ae1d2fee0afd0
Gerrit-Change-Number: 27104
Gerrit-PatchSet: 1
Gerrit-Owner: Patrick Rudolph <patrick.rudolph at 9elements.com>
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