diff options
Diffstat (limited to 'shared-core/nv04_mc.c')
| -rw-r--r-- | shared-core/nv04_mc.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/shared-core/nv04_mc.c b/shared-core/nv04_mc.c index 24c1f7b3..a6a2045d 100644 --- a/shared-core/nv04_mc.c +++ b/shared-core/nv04_mc.c @@ -7,12 +7,25 @@ int nv04_mc_init(struct drm_device *dev) { struct drm_nouveau_private *dev_priv = dev->dev_private; + uint32_t saved_pci_nv_1, saved_pci_nv_19; + + saved_pci_nv_1 = NV_READ(NV04_PBUS_PCI_NV_1); + saved_pci_nv_19 = NV_READ(NV04_PBUS_PCI_NV_19); + + /* clear busmaster bit */ + NV_WRITE(NV04_PBUS_PCI_NV_1, saved_pci_nv_1 & ~(0x00000001 << 2)); + /* clear SBA, AGP and FW bits */ + NV_WRITE(NV04_PBUS_PCI_NV_19, saved_pci_nv_19 & 0xfffff00f); /* Power up everything, resetting each individual unit will * be done later if needed. */ NV_WRITE(NV03_PMC_ENABLE, 0xFFFFFFFF); + /* and restore (gives effect of resetting AGP) */ + NV_WRITE(NV04_PBUS_PCI_NV_19, saved_pci_nv_19); + NV_WRITE(NV04_PBUS_PCI_NV_1, saved_pci_nv_1); + return 0; } |