Damien Zammit (damien@zamaudio.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/7172
-gerrit
commit 238131ec8d6618f77fcc4225668bfeeb7c898fe5 Author: Damien Zammit damien@zamaudio.com Date: Thu Oct 23 13:21:45 2014 +1100
bd82x6x/sata: Fix AHCI mode setting for max 6 ports on first controller
According to the Intel datasheet, 2 flags must be set when in AHCI mode. This is now fixed. There is an alternative setting to enable max 2 ports on first controller and 4 on the second controller, but this patch hardcodes max 6 sata ports on the first controller.
Change-Id: I825c15d329b2d5960534b1f01843e0df3ace5317 Signed-off-by: Damien Zammit damien@zamaudio.com --- src/southbridge/intel/bd82x6x/sata.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/src/southbridge/intel/bd82x6x/sata.c b/src/southbridge/intel/bd82x6x/sata.c index cb5699e..65931e1 100644 --- a/src/southbridge/intel/bd82x6x/sata.c +++ b/src/southbridge/intel/bd82x6x/sata.c @@ -89,6 +89,10 @@ static void sata_init(struct device *dev) reg32 = SIG_MODE_PRI_NORMAL | FAST_PCB1 | FAST_PCB0 | PCB1 | PCB0; pci_write_config32(dev, IDE_CONFIG, reg32);
+ /* Set AHCI mode with max 6 ports on first controller */ + reg16 = 0x0050; + pci_write_config16(dev, 0x90, reg16); + /* for AHCI, Port Enable is managed in memory mapped space */ reg16 = pci_read_config16(dev, 0x92); reg16 &= ~0x3f; /* 6 ports SKU + ORM */