1 files changed, 88 insertions, 0 deletions
diff --git a/arch/sh/drivers/pci/ops-bigsur.c b/arch/sh/drivers/pci/ops-bigsur.c
new file mode 100644
index 0000000..9b43da6
--- /dev/null
+++ b/arch/sh/drivers/pci/ops-bigsur.c
@@ -0,0 +1,88 @@
+/*
+ * linux/arch/sh/kernel/pci-bigsur.c
+ *
+ * By Dustin McIntire (dustin@sensoria.com) (c)2001
+ *
+ * Ported to new API by Paul Mundt <lethal@linux-sh.org>.
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * PCI initialization for the Hitachi Big Sur Evaluation Board
+ */
+
+#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 <asm/io.h>
+#include "pci-sh7751.h"
+#include <asm/bigsur/bigsur.h>
+
+#define BIGSUR_PCI_IO	0x4000
+#define BIGSUR_PCI_MEM	0xfd000000
+
+static struct resource sh7751_io_resource = {
+	.name		= "SH7751 IO",
+	.start		= BIGSUR_PCI_IO,
+	.end		= BIGSUR_PCI_IO + (64*1024) - 1,
+	.flags		= IORESOURCE_IO,
+};
+
+static struct resource sh7751_mem_resource = {
+	.name		= "SH7751 mem",
+	.start		= BIGSUR_PCI_MEM,
+	.end		= BIGSUR_PCI_MEM + (64*1024*1024) - 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 },
+	{ 0, }
+};
+
+static struct sh7751_pci_address_map sh7751_pci_map = {
+	.window0	= {
+		.base	= SH7751_CS3_BASE_ADDR,
+		.size	= BIGSUR_LSR0_SIZE,
+	},
+
+	.window1	= {
+		.base	= SH7751_CS3_BASE_ADDR,
+		.size	= BIGSUR_LSR1_SIZE,
+	},
+};
+
+/*
+ * Initialize the Big Sur PCI interface 
+ * Setup hardware to be Central Funtion
+ * Copy the BSR regs to the PCI interface
+ * Setup PCI windows into local RAM
+ */
+int __init pcibios_init_platform(void)
+{
+	return sh7751_pcic_init(&sh7751_pci_map);
+}
+
+int pcibios_map_platform_irq(u8 slot, u8 pin)
+{
+	/* 
+	 * The Big Sur can be used in a CPCI chassis, but the SH7751 PCI
+	 * interface is on the wrong end of the board so that it can also
+	 * support a V320 CPI interface chip...  Therefor the IRQ mapping is
+	 * somewhat use dependent... I'l assume a linear map for now, i.e.
+	 * INTA=slot0,pin0... INTD=slot3,pin0...
+	 */ 
+	int irq = (slot + pin-1) % 4 + BIGSUR_SH7751_PCI_IRQ_BASE;
+
+	PCIDBG(2, "PCI: Mapping Big Sur IRQ for slot %d, pin %c to irq %d\n",
+	       slot, pin-1+'A', irq);
+
+	return irq;
+}
+