Add support for Gigabyte MA785GMT mainboard.

Details of the hardware configuration can be found at
http://www.gigabyte.com/products/product-page.aspx?pid=3478

Brief configuration is:
  1. CPU:Support for AM3 processors: AMD PhenomTM II processor/ AMD Athlon™ II processor
  2. North Bridge: AMD 785G
  3. South Bridge: AMD SB710
  4: Super IO : ITE8718F

The mainboard has two bios flashchip. Coreboot ROM should be flashed into the
M_BIOS (which means main bios).

Signed-off-by: Wang Qing Pei <wangqingpei@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5713 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1

1 files changed, 113 insertions, 0 deletions

diff --git a/src/mainboard/gigabyte/ma785gmt/irq_tables.c b/src/mainboard/gigabyte/ma785gmt/irq_tables.c
new file mode 100644
index 0000000..b6b0ef1
--- /dev/null
+++ b/src/mainboard/gigabyte/ma785gmt/irq_tables.c
@@ -0,0 +1,113 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 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/amdfam10_sysconf.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_rs780[8];
+extern u8 bus_sb700[2];
+extern unsigned long sbdn_sb700;
+
+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;
+
+	get_bus_conf();		/* it will find out all bus num and apic that share with mptable.c and mptable.c and acpi_tables.c */
+
+	/* Align the table to be 16 byte aligned. */
+	addr += 15;
+	addr &= ~15;
+
+	/* This table must be betweeen 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_sb700[0];
+	pirq->rtr_devfn = ((sbdn_sb700 + 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_sb700[0], ((sbdn_sb700 + 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;
+}