diff options
Diffstat (limited to 'src/southbridge/via/vt8231/vt8231_early_smbus.c')
| -rw-r--r-- | src/southbridge/via/vt8231/vt8231_early_smbus.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/src/southbridge/via/vt8231/vt8231_early_smbus.c b/src/southbridge/via/vt8231/vt8231_early_smbus.c index 651f715413..49b942cb23 100644 --- a/src/southbridge/via/vt8231/vt8231_early_smbus.c +++ b/src/southbridge/via/vt8231/vt8231_early_smbus.c @@ -41,10 +41,14 @@ static void enable_smbus(void) c |= 5; pci_write_config8(dev, 0xd2, c); - c = pci_read_config8(dev, 0x54); - c &= ~0x80; - pci_write_config8(dev, 0xd2, c); - + /* make it work for I/O ... + */ + dev = pci_locate_device(PCI_ID(0x1106,0x8231), 0); + c = pci_read_config8(dev, 4); + c |= 1; + pci_write_config8(dev, 4, c); + print_err_hex8(c); + print_err(" is the comm register\n"); print_debug("SMBus controller enabled\r\n"); } @@ -139,11 +143,11 @@ static unsigned char smbus_read_byte(unsigned char devAdr, { unsigned short i; unsigned char bData; - unsigned char sts; + unsigned char sts = 0; /* clear host status */ outb(0xff, SMBUS_IO_BASE); - + /* check SMBUS ready */ for ( i = 0; i < 0xFFFF; i++ ) if ( (inb(SMBUS_IO_BASE) & 0x01) == 0 ) |