diff options
Diffstat (limited to 'src/southbridge/amd/amd8111/amd8111_enable_rom.c')
-rw-r--r-- | src/southbridge/amd/amd8111/amd8111_enable_rom.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/southbridge/amd/amd8111/amd8111_enable_rom.c b/src/southbridge/amd/amd8111/amd8111_enable_rom.c new file mode 100644 index 0000000000..d6045c3620 --- /dev/null +++ b/src/southbridge/amd/amd8111/amd8111_enable_rom.c @@ -0,0 +1,18 @@ + +static void amd8111_enable_rom(void) +{ + unsigned char byte; + uint32_t addr; + + /* Enable 4MB rom access at 0xFFC00000 - 0xFFFFFFFF */ + /* Locate the amd8111 */ + addr = pci_locate_device(PCI_ID(0x1022, 0x7468), 0); + + /* Refine the address to point at the rom enable byte */ + addr += 0x43; + + /* Set the 4MB enable bit bit */ + byte = pci_read_config8(addr); + byte |= 0x80; + pci_write_config8(addr, byte); +} |