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Diffstat (limited to 'sound/pci/oxygen')
-rw-r--r--sound/pci/oxygen/oxygen_lib.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c
index d10cc6ee1a6..e5ebe56fb0c 100644
--- a/sound/pci/oxygen/oxygen_lib.c
+++ b/sound/pci/oxygen/oxygen_lib.c
@@ -310,8 +310,10 @@ static void oxygen_restore_eeprom(struct oxygen *chip,
static void configure_pcie_bridge(struct pci_dev *pci)
{
- enum { PI7C9X110 };
+ enum { PEX811X, PI7C9X110 };
static const struct pci_device_id bridge_ids[] = {
+ { PCI_VDEVICE(PLX, 0x8111), .driver_data = PEX811X },
+ { PCI_VDEVICE(PLX, 0x8112), .driver_data = PEX811X },
{ PCI_DEVICE(0x12d8, 0xe110), .driver_data = PI7C9X110 },
{ }
};
@@ -328,6 +330,19 @@ static void configure_pcie_bridge(struct pci_dev *pci)
return;
switch (id->driver_data) {
+ case PEX811X: /* PLX PEX8111/PEX8112 PCIe/PCI bridge */
+ pci_read_config_dword(bridge, 0x48, &tmp);
+ tmp |= 1; /* enable blind prefetching */
+ tmp |= 1 << 11; /* enable beacon generation */
+ pci_write_config_dword(bridge, 0x48, tmp);
+
+ pci_write_config_dword(bridge, 0x84, 0x0c);
+ pci_read_config_dword(bridge, 0x88, &tmp);
+ tmp &= ~(7 << 27);
+ tmp |= 2 << 27; /* set prefetch size to 128 bytes */
+ pci_write_config_dword(bridge, 0x88, tmp);
+ break;
+
case PI7C9X110: /* Pericom PI7C9X110 PCIe/PCI bridge */
pci_read_config_dword(bridge, 0x40, &tmp);
tmp |= 1; /* park the PCI arbiter to the sound chip */