diff options
Diffstat (limited to 'src/southbridge/intel/i82801gx/i82801gx_smbus.c')
| -rw-r--r-- | src/southbridge/intel/i82801gx/i82801gx_smbus.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/southbridge/intel/i82801gx/i82801gx_smbus.c b/src/southbridge/intel/i82801gx/i82801gx_smbus.c index e9f9c7d918..ee9f47e811 100644 --- a/src/southbridge/intel/i82801gx/i82801gx_smbus.c +++ b/src/southbridge/intel/i82801gx/i82801gx_smbus.c @@ -29,6 +29,19 @@ #include "i82801gx.h" #include "i82801gx_smbus.h" +#define SMB_BASE 0x20 +static void smbus_init(struct device *dev) +{ + u32 smb_base; + + smb_base = pci_read_config32(dev, SMB_BASE); + printk_debug("Initializing SMBus device:\n"); + printk_debug(" Old SMBUS Base Address: 0x%04x\n", smb_base); + pci_write_config32(dev, SMB_BASE, 0x00000401); + smb_base = pci_read_config32(dev, SMB_BASE); + printk_debug(" New SMBUS Base Address: 0x%04x\n", smb_base); +} + static int lsmbus_read_byte(device_t dev, u8 address) { u16 device; @@ -65,7 +78,7 @@ static struct device_operations smbus_ops = { .read_resources = pci_dev_read_resources, .set_resources = pci_dev_set_resources, .enable_resources = pci_dev_enable_resources, - .init = 0, + .init = smbus_init, .scan_bus = scan_static_bus, .enable = i82801gx_enable, .ops_smbus_bus = &lops_smbus_bus, |