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Diffstat (limited to 'arch/i386/pci/fixup.c')
-rw-r--r--arch/i386/pci/fixup.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/arch/i386/pci/fixup.c b/arch/i386/pci/fixup.c
index b95b42950ed4..e7306dbf6c42 100644
--- a/arch/i386/pci/fixup.c
+++ b/arch/i386/pci/fixup.c
@@ -118,12 +118,9 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_3, pci
118static void pci_fixup_via_northbridge_bug(struct pci_dev *d) 118static void pci_fixup_via_northbridge_bug(struct pci_dev *d)
119{ 119{
120 u8 v; 120 u8 v;
121 u8 revision;
122 int where = 0x55; 121 int where = 0x55;
123 int mask = 0x1f; /* clear bits 5, 6, 7 by default */ 122 int mask = 0x1f; /* clear bits 5, 6, 7 by default */
124 123
125 pci_read_config_byte(d, PCI_REVISION_ID, &revision);
126
127 if (d->device == PCI_DEVICE_ID_VIA_8367_0) { 124 if (d->device == PCI_DEVICE_ID_VIA_8367_0) {
128 /* fix pci bus latency issues resulted by NB bios error 125 /* fix pci bus latency issues resulted by NB bios error
129 it appears on bug free^Wreduced kt266x's bios forces 126 it appears on bug free^Wreduced kt266x's bios forces
@@ -133,8 +130,8 @@ static void pci_fixup_via_northbridge_bug(struct pci_dev *d)
133 where = 0x95; /* the memory write queue timer register is 130 where = 0x95; /* the memory write queue timer register is
134 different for the KT266x's: 0x95 not 0x55 */ 131 different for the KT266x's: 0x95 not 0x55 */
135 } else if (d->device == PCI_DEVICE_ID_VIA_8363_0 && 132 } else if (d->device == PCI_DEVICE_ID_VIA_8363_0 &&
136 (revision == VIA_8363_KL133_REVISION_ID || 133 (d->revision == VIA_8363_KL133_REVISION_ID ||
137 revision == VIA_8363_KM133_REVISION_ID)) { 134 d->revision == VIA_8363_KM133_REVISION_ID)) {
138 mask = 0x3f; /* clear only bits 6 and 7; clearing bit 5 135 mask = 0x3f; /* clear only bits 6 and 7; clearing bit 5
139 causes screen corruption on the KL133/KM133 */ 136 causes screen corruption on the KL133/KM133 */
140 } 137 }
@@ -142,7 +139,7 @@ static void pci_fixup_via_northbridge_bug(struct pci_dev *d)
142 pci_read_config_byte(d, where, &v); 139 pci_read_config_byte(d, where, &v);
143 if (v & ~mask) { 140 if (v & ~mask) {
144 printk(KERN_WARNING "Disabling VIA memory write queue (PCI ID %04x, rev %02x): [%02x] %02x & %02x -> %02x\n", \ 141 printk(KERN_WARNING "Disabling VIA memory write queue (PCI ID %04x, rev %02x): [%02x] %02x & %02x -> %02x\n", \
145 d->device, revision, where, v, mask, v & mask); 142 d->device, d->revision, where, v, mask, v & mask);
146 v &= mask; 143 v &= mask;
147 pci_write_config_byte(d, where, v); 144 pci_write_config_byte(d, where, v);
148 } 145 }