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authorShawn Nematbakhsh <shawnn@google.com>2013-03-14 11:03:59 -0700
committerRonald G. Minnich <rminnich@gmail.com>2013-03-21 23:18:00 +0100
commit7b8952c19d8d809b7aeec629b31e1c3d66f19884 (patch)
treeb7f1970e1b90c7b1c8097e606326b75b75858bd3 /src
parent2b7c88f99ed55682378bc0b1aae8004e6e27fe7b (diff)
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@google.com> Reviewed-on: http://review.coreboot.org/2823 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/butterfly/devicetree.cb5
-rw-r--r--src/mainboard/google/stout/devicetree.cb2
2 files changed, 6 insertions, 1 deletions
diff --git a/src/mainboard/google/butterfly/devicetree.cb b/src/mainboard/google/butterfly/devicetree.cb
index ca8118abab..e7a50c0c57 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 c58a8d69e9..6e02020890 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"