* Lu, Yinghai <[EMAIL PROTECTED]> [061104 03:31]:
>
> Myles,
>
> I can not commit the patch directly, So please apply that in your own tree.
Is a similar patch required for amd 8xxx?
Content-Description: ck804_64bit_pref_mem.diff
> ck804 64bit pref mem support
>
> Signed-off-by: Yinghai Lu <[EMAIL PROTECTED]>
Acked-by: Stefan Reinauer <[EMAIL PROTECTED]>
>
> Index: ck804_pci.c
> ===================================================================
> --- ck804_pci.c (revision 2486)
> +++ ck804_pci.c (working copy)
> @@ -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
It should read "impossible" or better "impossible because we need a PCI domain"
but how can we end up without a pci domain on a ck804 mainboard? I would
think this can only happen if the mainboard config file is wrong?
> + 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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