diff options
| -rw-r--r-- | src/southbridge/amd/sb700/sm.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/southbridge/amd/sb700/sm.c b/src/southbridge/amd/sb700/sm.c index 5f6d20e688..6d93b172f1 100644 --- a/src/southbridge/amd/sb700/sm.c +++ b/src/southbridge/amd/sb700/sm.c @@ -308,9 +308,11 @@ static void sm_init(device_t dev) dword |= 0x1; pci_write_config32(dev, SB_MMIO_CFG_REG, dword); } - //ACPI_DISABLE_TIMER_IRQ_ENHANCEMENT_FOR_8254_TIMER byte = pci_read_config8(dev, 0xAE); - byte |= 1 << 5; + if (IS_ENABLED(CONFIG_ENABLE_APIC_EXT_ID)) + byte |= 1 << 4; + byte |= 1 << 5; /* ACPI_DISABLE_TIMER_IRQ_ENHANCEMENT_FOR_8254_TIMER */ + byte |= 1 << 6; /* Enable arbiter between APIC and PIC interrupts */ pci_write_config8(dev, 0xAE, byte); /* 4.11:Programming Cycle Delay for AB and BIF Clock Gating */ |