diff options
Diffstat (limited to 'src/southbridge/intel/i82801ix/lpc.c')
| -rw-r--r-- | src/southbridge/intel/i82801ix/lpc.c | 15 |
1 files changed, 5 insertions, 10 deletions
diff --git a/src/southbridge/intel/i82801ix/lpc.c b/src/southbridge/intel/i82801ix/lpc.c index 855d7cc7f9..11c153f4e7 100644 --- a/src/southbridge/intel/i82801ix/lpc.c +++ b/src/southbridge/intel/i82801ix/lpc.c @@ -276,18 +276,13 @@ static void i82801ix_power_options(struct device *dev) static void i82801ix_configure_cstates(struct device *dev) { - u8 reg8; - - reg8 = pci_read_config8(dev, D31F0_CxSTATE_CNF); - reg8 |= (1 << 4) | (1 << 3) | (1 << 2); // Enable Popup & Popdown - pci_write_config8(dev, D31F0_CxSTATE_CNF, reg8); + // Enable Popup & Popdown + pci_or_config8(dev, D31F0_CxSTATE_CNF, (1 << 4) | (1 << 3) | (1 << 2)); // Set Deeper Sleep configuration to recommended values - reg8 = pci_read_config8(dev, D31F0_C4TIMING_CNT); - reg8 &= 0xf0; - reg8 |= (2 << 2); // Deeper Sleep to Stop CPU: 34-40us - reg8 |= (2 << 0); // Deeper Sleep to Sleep: 15us - pci_write_config8(dev, D31F0_C4TIMING_CNT, reg8); + // Deeper Sleep to Stop CPU: 34-40us + // Deeper Sleep to Sleep: 15us + pci_update_config8(dev, D31F0_C4TIMING_CNT, ~0x0f, (2 << 2) | (2 << 0)); /* We could enable slow-C4 exit here, if someone needs it? */ } |