sh: Titan board support.

Add support for the titan board.

Signed-off-by: Jamie Lenehan <lenehan@twibble.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 84 insertions, 0 deletions

diff --git a/arch/sh/drivers/pci/ops-titan.c b/arch/sh/drivers/pci/ops-titan.c
new file mode 100644
index 000000000000..f76e4e963ac1
--- /dev/null
+++ b/arch/sh/drivers/pci/ops-titan.c
@@ -0,0 +1,84 @@
+/*
+ * arch/sh/drivers/pci/ops-titan.c
+ *
+ * Ported to new API by Paul Mundt <lethal@linux-sh.org>
+ *
+ * Modified from ops-snapgear.c written by  David McCullough
+ * Highly leveraged from pci-bigsur.c, written by Dustin McIntire.
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * PCI initialization for the Titan boards
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/titan.h>
+#include "pci-sh7751.h"
+
+int __init pcibios_map_platform_irq(u8 slot, u8 pin)
+{
+        int irq = -1;
+
+        switch (slot) {
+        case 0: irq = TITAN_IRQ_WAN;   break;   /* eth0 (WAN) */
+        case 1: irq = TITAN_IRQ_LAN;   break;   /* eth1 (LAN) */
+        case 2: irq = TITAN_IRQ_MPCIA; break;   /* mPCI A */
+        case 3: irq = TITAN_IRQ_MPCIB; break;   /* mPCI B */
+        case 4: irq = TITAN_IRQ_USB;   break;   /* USB */
+        default:
+                printk(KERN_INFO "PCI: Bad IRQ mapping request for slot %d\n", slot);
+                return -1;
+        }
+
+        printk("PCI: Mapping TITAN IRQ for slot %d, pin %c to irq %d\n",
+                slot, pin - 1 + 'A', irq);
+
+        return irq;
+}
+
+static struct resource sh7751_io_resource = {
+        .name   = "SH7751_IO",
+        .start  = SH7751_PCI_IO_BASE,
+        .end    = SH7751_PCI_IO_BASE + SH7751_PCI_IO_SIZE - 1,
+        .flags  = IORESOURCE_IO
+};
+
+static struct resource sh7751_mem_resource = {
+        .name   = "SH7751_mem",
+        .start  = SH7751_PCI_MEMORY_BASE,
+        .end    = SH7751_PCI_MEMORY_BASE + SH7751_PCI_MEM_SIZE - 1,
+        .flags  = IORESOURCE_MEM
+};
+
+extern struct pci_ops sh7751_pci_ops;
+
+struct pci_channel board_pci_channels[] = {
+        { &sh7751_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
+        { NULL, NULL, NULL, 0, 0 },
+};
+EXPORT_SYMBOL(board_pci_channels);
+
+static struct sh7751_pci_address_map sh7751_pci_map = {
+        .window0        = {
+                .base   = SH7751_CS2_BASE_ADDR,
+                .size   = SH7751_MEM_REGION_SIZE*2,     /* cs2 and cs3 */
+        },
+
+        .window1        = {
+                .base   = SH7751_CS2_BASE_ADDR,
+                .size   = SH7751_MEM_REGION_SIZE*2,
+        },
+
+        .flags  = SH7751_PCIC_NO_RESET,
+};
+
+int __init pcibios_init_platform(void)
+{
+        return sh7751_pcic_init(&sh7751_pci_map);
+}