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 00000000000..f76e4e963ac
--- /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);
+}