Bug 7104
| Summary: | VIA VT8237a PCI Chipset Not Detected | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Casey McGinty (casey) |
| Component: | PCI | Assignee: | Diego Calleja (diegocg) |
| Status: | REJECTED DUPLICATE | ||
| Severity: | high | ||
| Priority: | P2 | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.7.11 | Subsystem: | |
| Regression: | --- | Bisected commit-id: | |
Most recent kernel where this bug did not occur: none Distribution: ArchLinux Hardware Environment: Asus M2V Socket AM2 Motherboard Software Environment: Linux Problem Description: The kernel does not properly detect my south bridge PCI chipset, a VIA VT8237a. Because of this there is no way to enable DMA. There is a simple fix, which is to update the via_isa_bridges structure table in via82cxxx.c. Here is a patch: --- linux-2.6.17/drivers/ide/pci/via82cxxx.c.old 2006-07-22 14:58:30.000000000 -0700 +++ linux-2.6.17/drivers/ide/pci/via82cxxx.c 2006-07-22 15:00:56.000000000 -0700 @@ -82,6 +82,7 @@ { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, + { "vt8237a",PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, VIA_UDMA_133 | VIA_BAD_AST }, { "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, VIA_UDMA_100 }, ------------------ Also, pci_ids.h must be updated. Here is a patch: --- linux-2.6.17/include/linux/pci_ids.h.old 2006-07-22 15:01:49.000000000 -0700 +++ linux-2.6.17/include/linux/pci_ids.h 2006-07-22 15:02:58.000000000 -0700 @@ -1281,6 +1281,7 @@ #define PCI_DEVICE_ID_VIA_8378_0 0x3205 #define PCI_DEVICE_ID_VIA_8783_0 0x3208 #define PCI_DEVICE_ID_VIA_8237 0x3227 +#define PCI_DEVICE_ID_VIA_8237A 0x3337 #define PCI_DEVICE_ID_VIA_8251 0x3287 #define PCI_DEVICE_ID_VIA_3296_0 0x0296 #define PCI_DEVICE_ID_VIA_8231 0x8231 ---------------------------------------------