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Diffstat (limited to 'src/southbridge/nvidia')
-rw-r--r--src/southbridge/nvidia/ck804/lpc.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/src/southbridge/nvidia/ck804/lpc.c b/src/southbridge/nvidia/ck804/lpc.c
index 4b33a3c58f..b3a9b00bc0 100644
--- a/src/southbridge/nvidia/ck804/lpc.c
+++ b/src/southbridge/nvidia/ck804/lpc.c
@@ -53,15 +53,10 @@
static void lpc_common_init(device_t dev)
{
- u8 byte;
u32 dword;
struct resource *res;
/* I/O APIC initialization. */
- byte = pci_read_config8(dev, 0x74);
- byte |= (1 << 0); /* Enable APIC. */
- pci_write_config8(dev, 0x74, byte);
-
res = find_resource(dev, PCI_BASE_ADDRESS_1); /* IOAPIC */
ASSERT(res != NULL);
setup_ioapic(res->base, 0); /* Don't rename IOAPIC ID. */
@@ -221,6 +216,7 @@ static void ck804_lpc_read_resources(device_t dev)
static void ck804_lpc_set_resources(device_t dev)
{
+ u8 byte;
struct resource *res;
pci_dev_set_resources(dev);
@@ -228,9 +224,15 @@ static void ck804_lpc_set_resources(device_t dev)
/* APIC */
res = find_resource(dev, PCI_BASE_ADDRESS_1);
if (res) {
+ byte = pci_read_config8(dev, 0x74);
+ byte |= (1 << 1); /* enable access to PCI_BASE_ADDRESS_1 */
+ pci_write_config8(dev, 0x74, byte);
pci_write_config32(dev, PCI_BASE_ADDRESS_1, res->base);
res->flags |= IORESOURCE_STORED;
report_resource_stored(dev, res, "");
+ byte |= (1 << 0); /* enable decode of IOAPIC space */
+ byte &= ~(1 << 1); /* hide PCI_BASE_ADDRESS_1 */
+ pci_write_config8(dev, 0x74, byte);
}
/* HPET */