Piotr Kleinschmidt has uploaded this change for review.

View Change

src/southbridge/amd/pi/hudson/sata.c: set SATA in AHCI mode

The attempt to install pfSense ended up in a SATA driver error.
Changing SATA mode from IDE to AHCI solved that issue.

Change-Id: I1b0322392712d797dd5a8931150c8d0ff1b60940
Signed-off-by: Piotr Kleinschmidt <piotr.kleins@gmail.com>
---
M src/southbridge/amd/pi/hudson/sata.c
1 file changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/91/35891/1

diff --git a/src/southbridge/amd/pi/hudson/sata.c b/src/southbridge/amd/pi/hudson/sata.c
index 08e967d..8e58390 100644
--- a/src/southbridge/amd/pi/hudson/sata.c
+++ b/src/southbridge/amd/pi/hudson/sata.c
@@ -32,6 +32,9 @@
 	#define UNLOCK_BIT (1<<0)
 	#define SATA_CAPABILITIES_REG 0xFC
 	#define CFG_CAP_SPM (1<<12)
+	#define SATA_REV_SUBCLASS_REG 0x08
+	#define SUBCLASS_AHCI_MODE 0x60000
+	#define SATA_PROGRAMIF_AHCI 0x100
 
 	volatile u32 *ahci_ptr =
 		(u32*)(pci_read_config32(dev, AHCI_BASE_ADDRESS_REG) & 0xFFFFFF00);
@@ -45,6 +48,11 @@
 	/* set the SATA AHCI mode to allow port expanders */
 	*(ahci_ptr + BYTE_TO_DWORD_OFFSET(SATA_CAPABILITIES_REG)) |= CFG_CAP_SPM;
 
+	/* enable AHCI mode */
+	temp = pci_read_config32(dev, SATA_REV_SUBCLASS_REG);
+	temp = (temp & 0xFF0070FF) | SUBCLASS_AHCI_MODE | SATA_PROGRAMIF_AHCI;
+	pci_write_config32(dev, SATA_REV_SUBCLASS_REG, temp);
+
 	/* lock the write-protect */
 	temp = pci_read_config32(dev, MISC_CONTROL_REG);
 	temp &= ~UNLOCK_BIT;

To view, visit change 35891. To unsubscribe, or for help writing mail filters, visit settings.