1 files changed, 164 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp23xx/roadrunner.c b/arch/arm/mach-ixp23xx/roadrunner.c
new file mode 100644
index 000000000000..43c14e740794
--- /dev/null
+++ b/arch/arm/mach-ixp23xx/roadrunner.c
@@ -0,0 +1,164 @@
+/*
+ * arch/arm/mach-ixp23xx/roadrunner.c
+ *
+ * RoadRunner board-specific routines
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2005 (c) MontaVista Software, Inc.
+ *
+ * Based on 2.4 code Copyright 2005 (c) ADI Engineering Corporation
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/bitops.h>
+#include <linux/ioport.h>
+#include <linux/serial.h>
+#include <linux/serial_8250.h>
+#include <linux/serial_core.h>
+#include <linux/device.h>
+#include <linux/mm.h>
+#include <linux/pci.h>
+#include <linux/mtd/physmap.h>
+
+#include <asm/types.h>
+#include <asm/setup.h>
+#include <asm/memory.h>
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/irq.h>
+#include <asm/system.h>
+#include <asm/tlbflush.h>
+#include <asm/pgtable.h>
+
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/pci.h>
+
+/*
+ * Interrupt mapping
+ */
+#define INTA            IRQ_ROADRUNNER_PCI_INTA
+#define INTB            IRQ_ROADRUNNER_PCI_INTB
+#define INTC            IRQ_ROADRUNNER_PCI_INTC
+#define INTD            IRQ_ROADRUNNER_PCI_INTD
+
+#define INTC_PIN        IXP23XX_GPIO_PIN_11
+#define INTD_PIN        IXP23XX_GPIO_PIN_12
+
+static int __init roadrunner_map_irq(struct pci_dev *dev, u8 idsel, u8 pin)
+{
+        static int pci_card_slot_irq[] = {INTB, INTC, INTD, INTA};
+        static int pmc_card_slot_irq[] = {INTA, INTB, INTC, INTD};
+        static int usb_irq[] = {INTB, INTC, INTD, -1};
+        static int mini_pci_1_irq[] = {INTB, INTC, -1, -1};
+        static int mini_pci_2_irq[] = {INTC, INTD, -1, -1};
+
+        switch(dev->bus->number) {
+                case 0:
+                        switch(dev->devfn) {
+                        case 0x0: // PCI-PCI bridge
+                                break;
+                        case 0x8: // PCI Card Slot
+                                return pci_card_slot_irq[pin - 1];
+                        case 0x10: // PMC Slot
+                                return pmc_card_slot_irq[pin - 1];
+                        case 0x18: // PMC Slot Secondary Agent
+                                break;
+                        case 0x20: // IXP Processor
+                                break;
+                        default:
+                                return NO_IRQ;
+                        }
+                        break;
+
+                case 1:
+                        switch(dev->devfn) {
+                        case 0x0: // IDE Controller
+                                return (pin == 1) ? INTC : -1;
+                        case 0x8: // USB fun 0
+                        case 0x9: // USB fun 1
+                        case 0xa: // USB fun 2
+                                return usb_irq[pin - 1];
+                        case 0x10: // Mini PCI 1
+                                return mini_pci_1_irq[pin-1];
+                        case 0x18: // Mini PCI 2
+                                return mini_pci_2_irq[pin-1];
+                        case 0x20: // MEM slot
+                                return (pin == 1) ? INTA : -1;
+                        default:
+                                return NO_IRQ;
+                        }
+                        break;
+
+                default:
+                        return NO_IRQ;
+        }
+
+        return NO_IRQ;
+}
+
+static void roadrunner_pci_preinit(void)
+{
+        set_irq_type(IRQ_ROADRUNNER_PCI_INTC, IRQT_LOW);
+        set_irq_type(IRQ_ROADRUNNER_PCI_INTD, IRQT_LOW);
+
+        ixp23xx_pci_preinit();
+}
+
+static struct hw_pci roadrunner_pci __initdata = {
+        .nr_controllers = 1,
+        .preinit        = roadrunner_pci_preinit,
+        .setup          = ixp23xx_pci_setup,
+        .scan           = ixp23xx_pci_scan_bus,
+        .map_irq        = roadrunner_map_irq,
+};
+
+static int __init roadrunner_pci_init(void)
+{
+        if (machine_is_roadrunner())
+                pci_common_init(&roadrunner_pci);
+
+        return 0;
+};
+
+subsys_initcall(roadrunner_pci_init);
+
+static void __init roadrunner_init(void)
+{
+        physmap_configure(0x90000000, 0x04000000, 2, NULL);
+
+        /*
+         * Mark flash as writeable
+         */
+        IXP23XX_EXP_CS0[0] |= IXP23XX_FLASH_WRITABLE;
+        IXP23XX_EXP_CS0[1] |= IXP23XX_FLASH_WRITABLE;
+        IXP23XX_EXP_CS0[2] |= IXP23XX_FLASH_WRITABLE;
+        IXP23XX_EXP_CS0[3] |= IXP23XX_FLASH_WRITABLE;
+
+        ixp23xx_sys_init();
+}
+
+MACHINE_START(ROADRUNNER, "ADI Engineering RoadRunner Development Platform")
+        /* Maintainer: Deepak Saxena */
+        .phys_io        = IXP23XX_PERIPHERAL_PHYS,
+        .io_pg_offst    = ((IXP23XX_PERIPHERAL_VIRT >> 18)) & 0xfffc,
+        .map_io         = ixp23xx_map_io,
+        .init_irq       = ixp23xx_init_irq,
+        .timer          = &ixp23xx_timer,
+        .boot_params    = 0x00000100,
+        .init_machine   = roadrunner_init,
+MACHINE_END