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| author | Ronald G. Minnich <rminnich@gmail.com> | 2003-10-02 22:48:28 +0000 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2003-10-02 22:48:28 +0000 |
| commit | a70483b83bdc733e187ca6955b4edfa02a4d80e0 (patch) | |
| tree | d07fe2c2d5f1e7369ac541671d1ab9a28b0890ef /src/southbridge/via/vt8231 | |
| parent | cb3f498296bad22b360796139bc454d141d7ccc9 (diff) | |
First SPD code in and working!
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1177 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/southbridge/via/vt8231')
| -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 ) |