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-rw-r--r--src/cpu/amd/agesa/amd_late_init.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/cpu/amd/agesa/amd_late_init.c b/src/cpu/amd/agesa/amd_late_init.c
index f893741528..c8b941d634 100644
--- a/src/cpu/amd/agesa/amd_late_init.c
+++ b/src/cpu/amd/agesa/amd_late_init.c
@@ -43,6 +43,20 @@ static void agesawrapper_post_device(void *unused)
/* Preparation for write_tables(). */
get_bus_conf();
+#if IS_ENABLED(CONFIG_NORTHBRIDGE_AMD_AGESA_FAMILY_16KB)
+ device_t dev;
+ u32 value;
+ dev = dev_find_slot(0, PCI_DEVFN(0, 0)); /* clear IoapicSbFeatureEn */
+ pci_write_config32(dev, 0xF8, 0);
+ pci_write_config32(dev, 0xFC, 5); /* TODO: move it to dsdt.asl */
+
+ /* disable No Snoop */
+ dev = dev_find_slot(0, PCI_DEVFN(1, 1));
+ value = pci_read_config32(dev, 0x60);
+ value &= ~(1 << 11);
+ pci_write_config32(dev, 0x60, value);
+#endif
+
#if IS_ENABLED(CONFIG_HUDSON_IMC_FWM)
/* AMD AGESA does not enable thermal zone, so we enable it here. */
enable_imc_thermal_zone();