Timothy Pearson (tpearson@raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13154
-gerrit
commit a436fa86dd56b85aceadba13dcd6f7ea269b2ac5 Author: Timothy Pearson tpearson@raptorengineeringinc.com Date: Tue Nov 24 14:11:56 2015 -0600
southbridge/amd/sb700: Add missing DMA setup step from AMD RRG
Change-Id: I412a0e5f2e0686b10a295dd7c0e9b537dc1a0940 Signed-off-by: Timothy Pearson tpearson@raptorengineeringinc.com --- src/southbridge/amd/sb700/early_setup.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/src/southbridge/amd/sb700/early_setup.c b/src/southbridge/amd/sb700/early_setup.c index 3733314..76855fb 100644 --- a/src/southbridge/amd/sb700/early_setup.c +++ b/src/southbridge/amd/sb700/early_setup.c @@ -420,6 +420,11 @@ static void sb700_devices_por_init(void) /* Legacy DMA Prefetch Enhancement, CIM masked it. */ /* pci_write_config8(dev, 0x43, 0x1); */
+ /* Enable DMA verify bugfix */ + byte = pci_read_config8(dev, 0x67); + byte |= 0x1 << 1; + pci_write_config8(dev, 0x67, byte); + /* Disabling Legacy USB Fast SMI# */ byte = pci_read_config8(dev, 0x62); byte |= 0x24;