sh: Consolidated SH7751/SH7780 PCI support.

This cleans up quite a lot of the PCI mess that we
currently have, and attempts to consolidate the
duplication in the SH7780 and SH7751 PCI controllers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 68 insertions, 0 deletions

diff --git a/arch/sh/drivers/pci/ops-landisk.c b/arch/sh/drivers/pci/ops-landisk.c
new file mode 100644
index 000000000000..ada301c21fe7
--- /dev/null
+++ b/arch/sh/drivers/pci/ops-landisk.c
@@ -0,0 +1,68 @@
+/*
+ * arch/sh/drivers/pci/ops-landisk.c
+ *
+ * PCI initialization for the I-O DATA Device, Inc. LANDISK board
+ *
+ * Copyright (C) 2006 kogiidena
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ */
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include "pci-sh4.h"
+
+static struct resource sh7751_io_resource = {
+        .name = "SH7751 IO",
+        .start = 0x4000,
+        .end = 0x4000 + 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
+};
+
+struct pci_channel board_pci_channels[] = {
+        {&sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0x3ff},
+        {NULL, NULL, NULL, 0, 0},
+};
+
+static struct sh4_pci_address_map sh7751_pci_map = {
+        .window0 = {
+                .base   = SH7751_CS3_BASE_ADDR,
+                .size   = (64 << 20),   /* 64MB */
+        },
+
+        .flags = SH4_PCIC_NO_RESET,
+};
+
+int __init pcibios_init_platform(void)
+{
+        return sh7751_pcic_init(&sh7751_pci_map);
+}
+
+int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
+{
+        /*
+         * slot0: pin1-4 = irq5,6,7,8
+         * slot1: pin1-4 = irq6,7,8,5
+         * slot2: pin1-4 = irq7,8,5,6
+         * slot3: pin1-4 = irq8,5,6,7
+         */
+        int irq = ((slot + pin - 1) & 0x3) + 5;
+
+        if ((slot | (pin - 1)) > 0x3) {
+                printk("PCI: Bad IRQ mapping request for slot %d pin %c\n",
+                       slot, pin - 1 + 'A');
+                return -1;
+        }
+        return irq;
+}