| /* Include this file in the mainboards reset.c |
| */ |
| #include <arch/io.h> |
| #include <device/pci_ids.h> |
| |
| #define PCI_DEV(BUS, DEV, FN) ( \ |
| (((BUS) & 0xFF) << 16) | \ |
| (((DEV) & 0x1f) << 11) | \ |
| (((FN) & 0x7) << 8)) |
| |
| #define PCI_ID(VENDOR_ID, DEVICE_ID) \ |
| ((((DEVICE_ID) & 0xFFFF) << 16) | ((VENDOR_ID) & 0xFFFF)) |
| |
| typedef unsigned device_t; |
| |
| static void pci_write_config8(device_t dev, unsigned where, unsigned char value) |
| { |
| unsigned addr; |
| addr = dev | where; |
| outl(0x80000000 | (addr & ~3), 0xCF8); |
| outb(value, 0xCFC + (addr & 3)); |
| } |
| |
| static void pci_write_config32(device_t dev, unsigned where, unsigned value) |
| { |
| unsigned addr; |
| addr = dev | where; |
| outl(0x80000000 | (addr & ~3), 0xCF8); |
| outl(value, 0xCFC); |
| } |
| |
| static unsigned pci_read_config32(device_t dev, unsigned where) |
| { |
| unsigned addr; |
| addr = dev | where; |
| outl(0x80000000 | (addr & ~3), 0xCF8); |
| return inl(0xCFC); |
| } |
| |
| #define PCI_DEV_INVALID (0xffffffffU) |
| static device_t pci_locate_device(unsigned pci_id, unsigned bus) |
| { |
| device_t dev, last; |
| dev = PCI_DEV(bus, 0, 0); |
| last = PCI_DEV(bus, 31, 7); |
| for(; dev <= last; dev += PCI_DEV(0,0,1)) { |
| unsigned int id; |
| id = pci_read_config32(dev, 0); |
| if (id == pci_id) { |
| return dev; |
| } |
| } |
| return PCI_DEV_INVALID; |
| } |
| |
| #include "../../../northbridge/amd/amdk8/reset_test.c" |
| |
| static unsigned node_link_to_bus(unsigned node, unsigned link) |
| { |
| unsigned reg; |
| |
| for(reg = 0xE0; reg < 0xF0; reg += 0x04) { |
| unsigned config_map; |
| config_map = pci_read_config32(PCI_DEV(0, 0x18, 1), reg); |
| if ((config_map & 3) != 3) { |
| continue; |
| } |
| if ((((config_map >> 4) & 7) == node) && |
| (((config_map >> 8) & 3) == link)) |
| { |
| return (config_map >> 16) & 0xff; |
| } |
| } |
| return 0; |
| } |
| |
| static void amd8111_hard_reset(unsigned node, unsigned link) |
| { |
| device_t dev; |
| unsigned bus; |
| |
| /* Find the device. |
| * There can only be one 8111 on a hypertransport chain/bus. |
| */ |
| bus = node_link_to_bus(node, link); |
| dev = pci_locate_device( |
| PCI_ID(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_8111_ISA), |
| bus); |
| |
| /* Reset */ |
| set_bios_reset(); |
| pci_write_config8(dev, 0x47, 1); |
| } |