diff options
Diffstat (limited to 'util/flashrom/flash_enable.c')
| -rw-r--r-- | util/flashrom/flash_enable.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/util/flashrom/flash_enable.c b/util/flashrom/flash_enable.c index 901144ca5f..652fbcd820 100644 --- a/util/flashrom/flash_enable.c +++ b/util/flashrom/flash_enable.c @@ -391,6 +391,46 @@ static int enable_flash_sb400(struct pci_dev *dev, char *name) return 0; } +//By yhlu +static int enable_flash_mcp55(struct pci_dev *dev, char *name) +{ + /* register 4e.b gets or'ed with one */ + unsigned char old, new, byte; + unsigned short word; + + /* if it fails, it fails. There are so many variations of broken mobos + * that it is hard to argue that we should quit at this point. + */ + + //dump_pci_device(dev); + + /* Set the 4MB enable bit bit */ + byte = pci_read_byte(dev, 0x88); + byte |= 0xff; //256K + pci_write_byte(dev, 0x88, byte); + byte = pci_read_byte(dev, 0x8c); + byte |= 0xff; //1M + pci_write_byte(dev, 0x8c, byte); + word = pci_read_word(dev, 0x90); + word |= 0x7fff; //15M + pci_write_word(dev, 0x90, word); + + old = pci_read_byte(dev, 0x6d); + new = old | 0x01; + if (new == old) + return 0; + pci_write_byte(dev, 0x6d, new); + + if (pci_read_byte(dev, 0x6d) != new) { + printf("tried to set 0x%x to 0x%x on %s failed (WARNING ONLY)\n", + 0x6d, new, name); + return -1; + } + + return 0; + +} + typedef struct penable { unsigned short vendor, device; char *name; @@ -432,9 +472,13 @@ static FLASH_ENABLE enables[] = { {0x10de, 0x0260, "NVidia MCP51", enable_flash_ck804}, {0x10de, 0x0261, "NVidia MCP51", enable_flash_ck804}, + // {0x10de, 0x0261, "NVIDIA C51", enable_flash_ck804}, // YHLU {0x10de, 0x0262, "NVidia MCP51", enable_flash_ck804}, {0x10de, 0x0263, "NVidia MCP51", enable_flash_ck804}, + {0x10de, 0x0364, "NVIDIA MCP55", enable_flash_mcp55}, // LPC + {0x10de, 0x0367, "NVIDIA MCP55", enable_flash_mcp55}, // Pro + {0x1002, 0x4377, "ATI SB400", enable_flash_sb400}, // ATI Technologies Inc IXP SB400 PCI-ISA Bridge (rev 80) }; |