| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2011 Advanced Micro Devices, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| |
| #include <console/console.h> |
| #include <device/pci.h> |
| #include <string.h> |
| #include <stdint.h> |
| #include <arch/pirq_routing.h> |
| #include <cpu/amd/amdfam14.h> |
| |
| |
| static void write_pirq_info(struct irq_info *pirq_info, u8 bus, u8 devfn, |
| u8 link0, u16 bitmap0, u8 link1, u16 bitmap1, |
| u8 link2, u16 bitmap2, u8 link3, u16 bitmap3, |
| u8 slot, u8 rfu) |
| { |
| pirq_info->bus = bus; |
| pirq_info->devfn = devfn; |
| pirq_info->irq[0].link = link0; |
| pirq_info->irq[0].bitmap = bitmap0; |
| pirq_info->irq[1].link = link1; |
| pirq_info->irq[1].bitmap = bitmap1; |
| pirq_info->irq[2].link = link2; |
| pirq_info->irq[2].bitmap = bitmap2; |
| pirq_info->irq[3].link = link3; |
| pirq_info->irq[3].bitmap = bitmap3; |
| pirq_info->slot = slot; |
| pirq_info->rfu = rfu; |
| } |
| extern u8 bus_isa; |
| extern u8 bus_sb800[6]; |
| extern unsigned long sbdn_sb800; |
| |
| unsigned long write_pirq_routing_table(unsigned long addr) |
| { |
| |
| struct irq_routing_table *pirq; |
| struct irq_info *pirq_info; |
| u32 slot_num; |
| u8 *v; |
| |
| u8 sum = 0; |
| int i; |
| |
| /* Align the table to be 16 byte aligned. */ |
| addr += 15; |
| addr &= ~15; |
| |
| /* This table must be between 0xf0000 & 0x100000 */ |
| printk(BIOS_INFO, "Writing IRQ routing tables to 0x%lx...", addr); |
| |
| pirq = (void *)(addr); |
| v = (u8 *) (addr); |
| |
| pirq->signature = PIRQ_SIGNATURE; |
| pirq->version = PIRQ_VERSION; |
| |
| pirq->rtr_bus = bus_sb800[0]; |
| pirq->rtr_devfn = ((sbdn_sb800 + 0x14) << 3) | 4; |
| |
| pirq->exclusive_irqs = 0; |
| |
| pirq->rtr_vendor = 0x1002; |
| pirq->rtr_device = 0x4384; |
| |
| pirq->miniport_data = 0; |
| |
| memset(pirq->rfu, 0, sizeof(pirq->rfu)); |
| |
| pirq_info = (void *)(&pirq->checksum + 1); |
| slot_num = 0; |
| |
| |
| /* pci bridge */ |
| write_pirq_info(pirq_info, bus_sb800[0], ((sbdn_sb800 + 0x14) << 3) | 4, |
| 0x1, 0xdef8, 0x2, 0xdef8, 0x3, 0xdef8, 0x4, 0xdef8, 0, |
| 0); |
| pirq_info++; |
| |
| |
| |
| slot_num++; |
| |
| |
| |
| pirq->size = 32 + 16 * slot_num; |
| |
| for (i = 0; i < pirq->size; i++) |
| sum += v[i]; |
| |
| sum = pirq->checksum - sum; |
| |
| if (sum != pirq->checksum) { |
| pirq->checksum = sum; |
| } |
| |
| printk(BIOS_INFO, "write_pirq_routing_table done.\n"); |
| |
| return (unsigned long)pirq_info; |
| |
| } |