mainboard: Add AMD unionstation RDK support

AMD unionstation Reference Design Kit is Designed for hd settop box application.
This platform using family14 APU, SB800 southbridge.
Vgabios is required, can download vgabios from AMD NDA website.
Verified Feature:
 HDMI, LAN, mini-pcie slots, sata, usb, analog audio and
 optical fiber digital audio output.

Change-Id: Ib1d1d8c889d6fb29f4298b57dfe5c5c1cea1431c
Signed-off-by: Kerry She <kerry.she@amd.com>
Signed-off-by: Kerry She <shekairui@gmail.com>
Reviewed-on: http://review.coreboot.org/434
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marcj303@gmail.com>

1 files changed, 122 insertions, 0 deletions

diff --git a/src/mainboard/amd/union_station/irq_tables.c b/src/mainboard/amd/union_station/irq_tables.c
new file mode 100644
index 0000000000..28432dd248
--- /dev/null
+++ b/src/mainboard/amd/union_station/irq_tables.c
@@ -0,0 +1,122 @@
+/*
+ * 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[2];
+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;
+
+
+	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_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;
+
+}