[coreboot] New patch to review for coreboot: fde3707 Butterfly, Stout: Force SATA link speed to 3 Gbps
Stefan Reinauer (stefan.reinauer@coreboot.org)
gerrit at coreboot.org
Tue Mar 19 02:04:29 CET 2013
Stefan Reinauer (stefan.reinauer at coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2823
-gerrit
commit fde3707653bd57ea896df6e6da7497ab48339e33
Author: Shawn Nematbakhsh <shawnn at google.com>
Date: Thu Mar 14 11:03:59 2013 -0700
Butterfly, Stout: Force SATA link speed to 3 Gbps
Force link speed on these platforms to 3 Gbps to defeat buggy SATA
drives.
Change-Id: Ia38a7c486fb1f4469cd67ca5244bbf61f877d556
Signed-off-by: Shawn Nematbakhsh <shawnn at google.com>
---
src/mainboard/google/butterfly/devicetree.cb | 5 ++++-
src/mainboard/google/stout/devicetree.cb | 2 ++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/src/mainboard/google/butterfly/devicetree.cb b/src/mainboard/google/butterfly/devicetree.cb
index ca8118a..e7a50c0 100644
--- a/src/mainboard/google/butterfly/devicetree.cb
+++ b/src/mainboard/google/butterfly/devicetree.cb
@@ -58,7 +58,10 @@ chip northbridge/intel/sandybridge
register "ide_legacy_combined" = "0x0"
register "sata_ahci" = "0x1"
- register "sata_port_map" = "0x3" #enable SATA ports 0 & 1
+ # Enable SATA ports 0 & 1
+ register "sata_port_map" = "0x3"
+ # Set max SATA speed to 3.0 Gb/s
+ register "sata_interface_speed_support" = "0x2"
# Enable EC Port 0x68/0x6C
register "gen1_dec" = "0x00040069"
diff --git a/src/mainboard/google/stout/devicetree.cb b/src/mainboard/google/stout/devicetree.cb
index c58a8d6..6e02020 100644
--- a/src/mainboard/google/stout/devicetree.cb
+++ b/src/mainboard/google/stout/devicetree.cb
@@ -60,6 +60,8 @@ chip northbridge/intel/sandybridge
register "ide_legacy_combined" = "0x0"
register "sata_ahci" = "0x1"
register "sata_port_map" = "0x3"
+ # Set max SATA speed to 3.0 Gb/s
+ register "sata_interface_speed_support" = "0x2"
# Enable EC Port 0x68/0x6C
register "gen1_dec" = "0x00040069"
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