diff options
Diffstat (limited to 'resources/libreboot/patch/kgpe-d16/0051-southbridge-amd-sb700-Disable-broken-SATA-MSI-functi.patch')
| -rw-r--r-- | resources/libreboot/patch/kgpe-d16/0051-southbridge-amd-sb700-Disable-broken-SATA-MSI-functi.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/resources/libreboot/patch/kgpe-d16/0051-southbridge-amd-sb700-Disable-broken-SATA-MSI-functi.patch b/resources/libreboot/patch/kgpe-d16/0051-southbridge-amd-sb700-Disable-broken-SATA-MSI-functi.patch new file mode 100644 index 00000000..98ef19db --- /dev/null +++ b/resources/libreboot/patch/kgpe-d16/0051-southbridge-amd-sb700-Disable-broken-SATA-MSI-functi.patch @@ -0,0 +1,41 @@ +From 178c14e07187ad4315db638af03fb6593f147c4f Mon Sep 17 00:00:00 2001 +From: Timothy Pearson <tpearson@raptorengineeringinc.com> +Date: Tue, 9 Jun 2015 19:12:35 -0500 +Subject: [PATCH 051/143] southbridge/amd/sb700: Disable broken SATA MSI + functionality + +Change-Id: I4e0a52eb90910604f8640ad7533b5d71be6c8e20 +Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com> +--- + src/southbridge/amd/sb700/early_setup.c | 7 ++++--- + 1 file changed, 4 insertions(+), 3 deletions(-) + +diff --git a/src/southbridge/amd/sb700/early_setup.c b/src/southbridge/amd/sb700/early_setup.c +index a06a72f..da03961 100644 +--- a/src/southbridge/amd/sb700/early_setup.c ++++ b/src/southbridge/amd/sb700/early_setup.c +@@ -678,6 +678,7 @@ static void sb700_pci_cfg(void) + { + device_t dev; + u8 byte; ++ uint8_t acpi_s1_supported = 1; + + /* SMBus Device, BDF:0-20-0 */ + dev = pci_locate_device(PCI_ID(0x1002, 0x4385), 0); +@@ -730,10 +731,10 @@ static void sb700_pci_cfg(void) + byte = pci_read_config8(dev, 0x40); + byte |= 1 << 0; + pci_write_config8(dev, 0x40, byte); +- if (get_sb700_revision(pci_locate_device(PCI_ID(0x1002, 0x4385), 0)) <= 0x12) +- pci_write_config8(dev, 0x34, 0x70); /* set 0x61 to 0x70 if S1 is not supported. */ ++ if (acpi_s1_supported) ++ pci_write_config8(dev, 0x34, 0x70); /* Hide D3 power state and MSI capabilities */ + else +- pci_write_config8(dev, 0x34, 0x50); /* set 0x61 to 0x50 if S1 is not supported. */ ++ pci_write_config8(dev, 0x61, 0x70); /* Hide MSI capability */ + byte &= ~(1 << 0); + pci_write_config8(dev, 0x40, byte); + } +-- +1.7.9.5 + |