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-rw-r--r--src/southbridge/amd/sb700/early_setup.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/southbridge/amd/sb700/early_setup.c b/src/southbridge/amd/sb700/early_setup.c
index c890ad90d3..648b0d9d78 100644
--- a/src/southbridge/amd/sb700/early_setup.c
+++ b/src/southbridge/amd/sb700/early_setup.c
@@ -420,6 +420,14 @@ static void sb700_devices_por_init(void)
byte |= 0x24;
pci_write_config8(dev, 0x62, byte);
+ /* Configure HPET Counter CLK period */
+ byte = pci_read_config8(dev, 0x43);
+ byte &= 0xF7; /* unhide HPET regs */
+ pci_write_config8(dev, 0x43, byte);
+ pci_write_config32(dev, 0x34, 0x0429B17E ); /* Counter CLK period */
+ byte |= 0x08; /* hide HPET regs */
+ pci_write_config8(dev, 0x43, byte);
+
/* Features Enable */
pci_write_config32(dev, 0x64, 0x829E79BF); /* bit10: Enables the HPET interrupt. */