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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>
This commit is contained in:
Shawn Nematbakhsh 2013-03-14 11:03:59 -07:00 committed by Ronald G. Minnich
parent 2b7c88f99e
commit 7b8952c19d
2 changed files with 6 additions and 1 deletions
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5
src/mainboard/google/butterfly/devicetree.cb
View File

@ -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"

2
src/mainboard/google/stout/devicetree.cb
View File

@ -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"