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| author | Timothy Pearson <tpearson@raptorengineeringinc.com> | 2015-11-24 14:11:56 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-01-29 00:43:43 +0100 |
| commit | 8274accde894af7fb2e44ee70662eb632beebaf9 (patch) | |
| tree | f78eca1234019e3c7f4e0a8b039fc2bab6ef14b6 | |
| parent | 2ba84cd7ded80f6f4a17085ee4dd6af274ad3dde (diff) | |
| download | coreboot-8274accde894af7fb2e44ee70662eb632beebaf9.tar.xz | |
southbridge/amd/sb700: Add missing DMA setup step from AMD RRG
Change-Id: I412a0e5f2e0686b10a295dd7c0e9b537dc1a0940
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
Reviewed-on: https://review.coreboot.org/13154
Tested-by: build bot (Jenkins)
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
| -rw-r--r-- | src/southbridge/amd/sb700/early_setup.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/southbridge/amd/sb700/early_setup.c b/src/southbridge/amd/sb700/early_setup.c index 3733314f07..76855fba34 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; |