patch-2.4.20 linux-2.4.20/arch/ppc/platforms/pal4_pci.c

• Lines: 79
• Date: Thu Nov 28 15:53:11 2002
• Orig file: linux-2.4.19/arch/ppc/platforms/pal4_pci.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.19/arch/ppc/platforms/pal4_pci.c linux-2.4.20/arch/ppc/platforms/pal4_pci.c
@@ -0,0 +1,78 @@
+/*
+ * arch/ppc/platforms/pal4_pci.c
+ * 
+ * PCI support for SBS Palomar IV
+ *
+ * Author: Dan Cox 
+ *
+ * Copyright 2002 MontaVista Software 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;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+
+#include <asm/byteorder.h>
+#include <asm/machdep.h>
+#include <asm/io.h>
+#include <asm/pci-bridge.h>
+#include <asm/uaccess.h>
+
+#include "cpc700.h"
+#include "pal4.h"
+
+/* not much to this.... */
+static inline int __init
+pal4_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
+{
+	if (idsel == 9)
+		return PAL4_ETH;
+	else
+		return PAL4_INTA + (idsel - 3);
+}
+
+void __init
+pal4_find_bridges(void)
+{
+	struct pci_controller *hose;
+
+	hose = pcibios_alloc_controller();
+	if (!hose)
+		return;
+
+	hose->first_busno = 0;
+	hose->last_busno = 0xff;
+	hose->pci_mem_offset = 0;
+
+	/* Could snatch these from the CPC700.... */
+	pci_init_resource(&hose->io_resource,
+			  0x0, 
+			  0x03ffffff,
+			  IORESOURCE_IO,
+			  "PCI host bridge");
+
+	pci_init_resource(&hose->mem_resources[0],
+			  0x90000000,
+			  0x9fffffff,
+			  IORESOURCE_MEM,
+			  "PCI host bridge");
+
+	hose->io_space.start = 0x00800000;
+	hose->io_space.end = 0x03ffffff;
+	hose->mem_space.start = 0x90000000;
+	hose->mem_space.end = 0x9fffffff;
+	hose->io_base_virt = (void *) 0xf8000000;
+	
+	setup_indirect_pci(hose, CPC700_PCI_CONFIG_ADDR,
+			   CPC700_PCI_CONFIG_DATA);
+	
+	hose->last_busno = pciauto_bus_scan(hose, hose->first_busno);
+
+	ppc_md.pci_swizzle = common_swizzle;
+	ppc_md.pci_map_irq = pal4_map_irq;
+}