mainboard/gizmosphere/gizmo2: Start adding new mainboard
This is a direct copy of the amd/olivehill mainboard which
will be the starting point for this port.
Change-Id: I6a643f7ac35d89e21df0ffdf4e61a2da46e19b82
Signed-off-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-on: http://review.coreboot.org/7721
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Tested-by: build bot (Jenkins)
diff --git a/src/mainboard/gizmosphere/gizmo2/irq_tables.c b/src/mainboard/gizmosphere/gizmo2/irq_tables.c
new file mode 100644
index 0000000..22ed1ab
--- /dev/null
+++ b/src/mainboard/gizmosphere/gizmo2/irq_tables.c
@@ -0,0 +1,107 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 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/amdfam16.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;
+}
+
+
+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 = 0;
+ pirq->rtr_devfn = PCI_DEVFN(0x14, 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, 0, PCI_DEVFN(0x14, 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;
+}