Timothy Pearson (tpearson@raptorengineeringinc.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/13160
-gerrit
commit 9136e056c697ad6b92ce24c7053db16d413c31c6 Author: Timothy Pearson tpearson@raptorengineeringinc.com Date: Tue Nov 24 14:11:58 2015 -0600
southbridge/amd/sb700: Enable extended APIC ID when Kconfig option set
Change-Id: I52fc2c2294edead3b5dacf397c0a1ab2e08b1e3f Signed-off-by: Timothy Pearson tpearson@raptorengineeringinc.com --- src/southbridge/amd/sb700/sm.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/southbridge/amd/sb700/sm.c b/src/southbridge/amd/sb700/sm.c index 5f6d20e..6d93b17 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 */