diff options
Diffstat (limited to 'src/mainboard/msi/ms7260/irq_tables.c')
| -rw-r--r-- | src/mainboard/msi/ms7260/irq_tables.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/mainboard/msi/ms7260/irq_tables.c b/src/mainboard/msi/ms7260/irq_tables.c new file mode 100644 index 0000000000..61413b3bf7 --- /dev/null +++ b/src/mainboard/msi/ms7260/irq_tables.c @@ -0,0 +1,110 @@ +/* + * This file is part of the LinuxBIOS project. + * + * Copyright (C) 2007 AMD + * Written by Yinghai Lu <yinghailu@amd.com> for AMD. + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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/amdk8_sysconf.h> + +static void write_pirq_info(struct irq_info *pirq_info, uint8_t bus, + uint8_t devfn, uint8_t link0, uint16_t bitmap0, + uint8_t link1, uint16_t bitmap1, uint8_t link2, + uint16_t bitmap2, uint8_t link3, uint16_t bitmap3, + uint8_t slot, uint8_t 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 unsigned char bus_isa; +extern unsigned char bus_mcp55[8]; // 1 + +unsigned long write_pirq_routing_table(unsigned long addr) +{ + struct irq_routing_table *pirq; + struct irq_info *pirq_info; + unsigned int slot_num, sbdn; + uint8_t *v; + uint8_t sum = 0; + int i; + + /* Will find out all bus num and apic that share with mptable.c + * and mptable.c and acpi_tables.c. + */ + get_bus_conf(); + sbdn = sysconf.sbdn; + + /* Align the table to be 16 byte aligned. */ + addr += 15; + addr &= ~15; + + /* This table must be betweeen 0xf0000 and 0x100000. */ + printk_info("Writing IRQ routing tables to 0x%x...", addr); + + pirq = (void *)(addr); + v = (uint8_t *)(addr); + + pirq->signature = PIRQ_SIGNATURE; + pirq->version = PIRQ_VERSION; + pirq->rtr_bus = bus_mcp55[0]; + pirq->rtr_devfn = ((sbdn + 6) << 3) | 0; + pirq->exclusive_irqs = 0; + pirq->rtr_vendor = 0x10de; + pirq->rtr_device = 0x0370; /* TODO: Hm, getpir suggests 0x0364 !? */ + pirq->miniport_data = 0; + + memset(pirq->rfu, 0, sizeof(pirq->rfu)); + + pirq_info = (void *)(&pirq->checksum + 1); + slot_num = 0; + + /* PCI bridge (00:06.0) */ + write_pirq_info(pirq_info, bus_mcp55[0], ((sbdn + 6) << 3) | 0, 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_info("done.\n"); + + return (unsigned long)pirq_info; +} |