[coreboot-gerrit] Patch set updated for coreboot: mb/lenovo/t400/romstage: Enable D1F0

[Patrick Rudolph (siro@das-labor.org)]

Patrick Rudolph (siro at das-labor.org) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/18195

-gerrit

commit d635e8ddf4466af62100c51508d08b0f13af4cf0
Author: Patrick Rudolph <siro at das-labor.org>
Date:   Sat Jan 21 10:45:03 2017 +0100

    mb/lenovo/t400/romstage: Enable D1F0
    
    Enable PEG (D1F0) to make sure it can be accessed by raminit().
    
    Change-Id: Ia3c1516c54c28bbe5a127153912c9682e975bea2
    Signed-off-by: Patrick Rudolph <siro at das-labor.org>
---
 src/mainboard/lenovo/t400/romstage.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/src/mainboard/lenovo/t400/romstage.c b/src/mainboard/lenovo/t400/romstage.c
index d110d4f..013d22c 100644
--- a/src/mainboard/lenovo/t400/romstage.c
+++ b/src/mainboard/lenovo/t400/romstage.c
@@ -104,11 +104,15 @@ void mainboard_romstage_entry(unsigned long bist)
 	sysinfo.enable_igd = 1;
 	sysinfo.enable_peg = 0;
 	get_gmch_info(&sysinfo);
-	raminit(&sysinfo, s3resume);
 
-	const u32 deven = pci_read_config32(MCH_DEV, D0F0_DEVEN);
+	u32 deven = pci_read_config32(MCH_DEV, D0F0_DEVEN);
 	/* Disable D4F0 (unknown signal controller). */
-	pci_write_config32(MCH_DEV, D0F0_DEVEN, deven & ~0x4000);
+	deven &= ~0x4000;
+	/* Enable D1F0 (PEG). */
+	deven |= 2;
+	pci_write_config32(MCH_DEV, D0F0_DEVEN, deven);
+
+	raminit(&sysinfo, s3resume);
 
 	init_pm(&sysinfo, 0);