Author: yhlu
Date: 2006-12-20 21:15:33 +0100 (Wed, 20 Dec 2006)
New Revision: 2532
Modified:
trunk/LinuxBIOSv2/src/southbridge/nvidia/ck804/ck804_pci.c
Log:
ck804 pref mem 4G above support
Signed-off-by: Yinghai Lu <[EMAIL PROTECTED]>
Acked-by: Yinghai Lu <[EMAIL PROTECTED]>
Modified: trunk/LinuxBIOSv2/src/southbridge/nvidia/ck804/ck804_pci.c
===================================================================
--- trunk/LinuxBIOSv2/src/southbridge/nvidia/ck804/ck804_pci.c 2006-12-20
14:59:56 UTC (rev 2531)
+++ trunk/LinuxBIOSv2/src/southbridge/nvidia/ck804/ck804_pci.c 2006-12-20
20:15:33 UTC (rev 2532)
@@ -14,6 +14,10 @@
{
uint32_t dword;
+#if CONFIG_PCI_64BIT_PREF_MEM == 1
+ device_t pci_domain_dev;
+ struct resource *mem1, *mem2;
+#endif
/* System error enable */
dword = pci_read_config32(dev, 0x04);
@@ -34,8 +38,27 @@
pci_write_config32(dev, 0x4c, dword);
#endif
+#if CONFIG_PCI_64BIT_PREF_MEM == 1
+ pci_domain_dev = dev->bus->dev;
+ while(pci_domain_dev) {
+ if(pci_domain_dev->path.type == DEVICE_PATH_PCI_DOMAIN) break;
+ pci_domain_dev = pci_domain_dev->bus->dev;
+ }
+
+ if(!pci_domain_dev) return; // impossiable
+ mem1 = find_resource(pci_domain_dev, 1); // prefmem, it could be 64bit
+ mem2 = find_resource(pci_domain_dev, 2); // mem
+ if(mem1->base > mem2->base) {
+ dword = mem2->base & (0xffff0000UL);
+ printk_debug("PCI DOMAIN mem2 base = 0x%010Lx\n", mem2->base);
+ } else {
+ dword = mem1->base & (0xffff0000UL);
+ printk_debug("PCI DOMAIN mem1 (prefmem) base = 0x%010Lx\n",
mem1->base);
+ }
+#else
dword = dev_root.resource[1].base & (0xffff0000UL);
- printk_debug("dev_root mem base = 0x%010Lx\n",
dev_root.resource[1].base);
+ printk_debug("dev_root mem base = 0x%010Lx\n",
dev_root.resource[1].base);
+#endif
printk_debug("[0x50] <-- 0x%08x\n", dword);
pci_write_config32(dev, 0x50, dword); //TOM
--
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