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ck804 pref mem 4G above support 

Signed-off-by: Yinghai Lu <yinghai.lu@amd.com>
Acked-by: Yinghai Lu <yinghai.lu@amd.com>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2532 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Yinghai Lu 2006-12-20 20:15:33 +00:00 committed by Yinghai Lu
parent c2c8646584
commit 6c3874e8f8
1 changed files with 24 additions and 1 deletions
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23
src/southbridge/nvidia/ck804/ck804_pci.c
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@ -14,6 +14,10 @@ static void pci_init(struct device *dev)
{
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 @@ static void pci_init(struct device *dev)
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);
#endif
printk_debug("[0x50] <-- 0x%08x\n", dword);
pci_write_config32(dev, 0x50, dword); //TOM