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Diffstat (limited to 'src/mainboard/tyan/s2881/mptable.c')
-rw-r--r--src/mainboard/tyan/s2881/mptable.c55
1 files changed, 49 insertions, 6 deletions
diff --git a/src/mainboard/tyan/s2881/mptable.c b/src/mainboard/tyan/s2881/mptable.c
index 06f1301ee5..ee92919db8 100644
--- a/src/mainboard/tyan/s2881/mptable.c
+++ b/src/mainboard/tyan/s2881/mptable.c
@@ -7,6 +7,41 @@
#include <cpu/amd/dualcore.h>
#endif
+
+static unsigned node_link_to_bus(unsigned node, unsigned link)
+{
+ device_t dev;
+ unsigned reg;
+
+ dev = dev_find_slot(0, PCI_DEVFN(0x18, 1));
+ if (!dev) {
+ return 0;
+ }
+ for(reg = 0xE0; reg < 0xF0; reg += 0x04) {
+ uint32_t config_map;
+ unsigned dst_node;
+ unsigned dst_link;
+ unsigned bus_base;
+ config_map = pci_read_config32(dev, reg);
+ if ((config_map & 3) != 3) {
+ continue;
+ }
+ dst_node = (config_map >> 4) & 7;
+ dst_link = (config_map >> 8) & 3;
+ bus_base = (config_map >> 16) & 0xff;
+#if 0
+ printk_debug("node.link=bus: %d.%d=%d 0x%2x->0x%08x\n",
+ dst_node, dst_link, bus_base,
+ reg, config_map);
+#endif
+ if ((dst_node == node) && (dst_link == link))
+ {
+ return bus_base;
+ }
+ }
+ return 0;
+}
+
void *smp_write_config_table(void *v)
{
static const char sig[4] = "PCMP";
@@ -16,6 +51,7 @@ void *smp_write_config_table(void *v)
unsigned char bus_num;
unsigned char bus_isa;
+ unsigned char bus_chain_0;
unsigned char bus_8131_1;
unsigned char bus_8131_2;
unsigned char bus_8111_1;
@@ -46,9 +82,16 @@ void *smp_write_config_table(void *v)
{
device_t dev;
+
+ /* HT chain 0 */
+ bus_chain_0 = node_link_to_bus(0, 2);
+ if (bus_chain_0 == 0) {
+ printk_debug("ERROR - cound not find bus for node 0 chain 0, using defaults\n");
+ bus_chain_0 = 1;
+ }
/* 8111 */
- dev = dev_find_slot(1, PCI_DEVFN(0x03,0));
+ dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x03,0));
if (dev) {
bus_8111_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
@@ -61,7 +104,7 @@ void *smp_write_config_table(void *v)
bus_isa = 5;
}
/* 8131-1 */
- dev = dev_find_slot(1, PCI_DEVFN(0x01,0));
+ dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x01,0));
if (dev) {
bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
@@ -72,7 +115,7 @@ void *smp_write_config_table(void *v)
bus_8131_1 = 2;
}
/* 8131-2 */
- dev = dev_find_slot(1, PCI_DEVFN(0x02,0));
+ dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x02,0));
if (dev) {
bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
@@ -106,14 +149,14 @@ void *smp_write_config_table(void *v)
{
device_t dev;
struct resource *res;
- dev = dev_find_slot(1, PCI_DEVFN(0x1,1));
+ dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x1,1));
if (dev) {
res = find_resource(dev, PCI_BASE_ADDRESS_0);
if (res) {
smp_write_ioapic(mc, apicid_8131_1, 0x11, res->base);
}
}
- dev = dev_find_slot(1, PCI_DEVFN(0x2,1));
+ dev = dev_find_slot(bus_chain_0, PCI_DEVFN(0x2,1));
if (dev) {
res = find_resource(dev, PCI_BASE_ADDRESS_0);
if (res) {
@@ -138,7 +181,7 @@ void *smp_write_config_table(void *v)
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, bus_isa, 0xf, apicid_8111, 0xf);
//8111 LPC ????
- smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 1, (4<<2)|0, apicid_8111, 0x13);
+ smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_chain_0, (4<<2)|0, apicid_8111, 0x13);
//On Board AMD USB ???
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, bus_8111_1, (0<<2)|3, apicid_8111, 0x13);