1 files changed, 264 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp2000/enp2611.c b/arch/arm/mach-ixp2000/enp2611.c
new file mode 100644
index 00000000000..62c60ade527
--- /dev/null
+++ b/arch/arm/mach-ixp2000/enp2611.c
@@ -0,0 +1,264 @@
+/*
+ * arch/arm/mach-ixp2000/enp2611.c
+ *
+ * Radisys ENP-2611 support.
+ *
+ * Created 2004 by Lennert Buytenhek from the ixdp2x01 code.  The
+ * original version carries the following notices:
+ *
+ * Original Author: Andrzej Mialkowski <andrzej.mialkowski@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002-2003 Intel Corp.
+ * Copyright (C) 2003-2004 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/mm.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/bitops.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/serial.h>
+#include <linux/tty.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <asm/irq.h>
+#include <asm/pgtable.h>
+#include <asm/page.h>
+#include <asm/system.h>
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+
+#include <asm/mach/pci.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/time.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/flash.h>
+
+/*************************************************************************
+ * ENP-2611 timer tick configuration
+ *************************************************************************/
+static void __init enp2611_timer_init(void)
+{
+        ixp2000_init_time(50 * 1000 * 1000);
+}
+
+static struct sys_timer enp2611_timer = {
+        .init           = enp2611_timer_init,
+        .offset         = ixp2000_gettimeoffset,
+};
+
+
+/*************************************************************************
+ * ENP-2611 I/O
+ *************************************************************************/
+static struct map_desc enp2611_io_desc[] __initdata = {
+        {
+                .virtual        = ENP2611_CALEB_VIRT_BASE,
+                .pfn            = __phys_to_pfn(ENP2611_CALEB_PHYS_BASE),
+                .length         = ENP2611_CALEB_SIZE,
+                .type           = MT_DEVICE,
+        }, {
+                .virtual        = ENP2611_PM3386_0_VIRT_BASE,
+                .pfn            = __phys_to_pfn(ENP2611_PM3386_0_PHYS_BASE),
+                .length         = ENP2611_PM3386_0_SIZE,
+                .type           = MT_DEVICE,
+        }, {
+                .virtual        = ENP2611_PM3386_1_VIRT_BASE,
+                .pfn            = __phys_to_pfn(ENP2611_PM3386_1_PHYS_BASE),
+                .length         = ENP2611_PM3386_1_SIZE,
+                .type           = MT_DEVICE,
+        }
+};
+
+void __init enp2611_map_io(void)
+{
+        ixp2000_map_io();
+        iotable_init(enp2611_io_desc, ARRAY_SIZE(enp2611_io_desc));
+}
+
+
+/*************************************************************************
+ * ENP-2611 PCI
+ *************************************************************************/
+static int enp2611_pci_setup(int nr, struct pci_sys_data *sys)
+{
+        sys->mem_offset = 0xe0000000;
+        ixp2000_pci_setup(nr, sys);
+        return 1;
+}
+
+static void __init enp2611_pci_preinit(void)
+{
+        ixp2000_reg_write(IXP2000_PCI_ADDR_EXT, 0x00100000);
+        ixp2000_pci_preinit();
+        pcibios_setup("firmware");
+}
+
+static inline int enp2611_pci_valid_device(struct pci_bus *bus,
+                                                unsigned int devfn)
+{
+        /* The 82559 ethernet controller appears at both PCI:1:0:0 and
+         * PCI:1:2:0, so let's pretend the second one isn't there.
+         */
+        if (bus->number == 0x01 && devfn == 0x10)
+                return 0;
+
+        return 1;
+}
+
+static int enp2611_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+                                        int where, int size, u32 *value)
+{
+        if (enp2611_pci_valid_device(bus, devfn))
+                return ixp2000_pci_read_config(bus, devfn, where, size, value);
+
+        return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
+static int enp2611_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+                                        int where, int size, u32 value)
+{
+        if (enp2611_pci_valid_device(bus, devfn))
+                return ixp2000_pci_write_config(bus, devfn, where, size, value);
+
+        return PCIBIOS_DEVICE_NOT_FOUND;
+}
+
+static struct pci_ops enp2611_pci_ops = {
+        .read   = enp2611_pci_read_config,
+        .write  = enp2611_pci_write_config
+};
+
+static struct pci_bus * __init enp2611_pci_scan_bus(int nr,
+                                                struct pci_sys_data *sys)
+{
+        return pci_scan_bus(sys->busnr, &enp2611_pci_ops, sys);
+}
+
+static int __init enp2611_pci_map_irq(const struct pci_dev *dev, u8 slot,
+        u8 pin)
+{
+        int irq;
+
+        if (dev->bus->number == 0 && PCI_SLOT(dev->devfn) == 0) {
+                /* IXP2400. */
+                irq = IRQ_IXP2000_PCIA;
+        } else if (dev->bus->number == 0 && PCI_SLOT(dev->devfn) == 1) {
+                /* 21555 non-transparent bridge.  */
+                irq = IRQ_IXP2000_PCIB;
+        } else if (dev->bus->number == 0 && PCI_SLOT(dev->devfn) == 4) {
+                /* PCI2050B transparent bridge.  */
+                irq = -1;
+        } else if (dev->bus->number == 1 && PCI_SLOT(dev->devfn) == 0) {
+                /* 82559 ethernet.  */
+                irq = IRQ_IXP2000_PCIA;
+        } else if (dev->bus->number == 1 && PCI_SLOT(dev->devfn) == 1) {
+                /* SPI-3 option board.  */
+                irq = IRQ_IXP2000_PCIB;
+        } else {
+                printk(KERN_ERR "enp2611_pci_map_irq() called for unknown "
+                                "device PCI:%d:%d:%d\n", dev->bus->number,
+                                PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
+                irq = -1;
+        }
+
+        return irq;
+}
+
+struct hw_pci enp2611_pci __initdata = {
+        .nr_controllers = 1,
+        .setup          = enp2611_pci_setup,
+        .preinit        = enp2611_pci_preinit,
+        .scan           = enp2611_pci_scan_bus,
+        .map_irq        = enp2611_pci_map_irq,
+};
+
+int __init enp2611_pci_init(void)
+{
+        if (machine_is_enp2611())
+                pci_common_init(&enp2611_pci);
+
+        return 0;
+}
+
+subsys_initcall(enp2611_pci_init);
+
+
+/*************************************************************************
+ * ENP-2611 Machine Initialization
+ *************************************************************************/
+static struct flash_platform_data enp2611_flash_platform_data = {
+        .map_name       = "cfi_probe",
+        .width          = 1,
+};
+
+static struct ixp2000_flash_data enp2611_flash_data = {
+        .platform_data  = &enp2611_flash_platform_data,
+        .nr_banks       = 1
+};
+
+static struct resource enp2611_flash_resource = {
+        .start          = 0xc4000000,
+        .end            = 0xc4000000 + 0x00ffffff,
+        .flags          = IORESOURCE_MEM,
+};
+
+static struct platform_device enp2611_flash = {
+        .name           = "IXP2000-Flash",
+        .id             = 0,
+        .dev            = {
+                .platform_data = &enp2611_flash_data,
+        },
+        .num_resources  = 1,
+        .resource       = &enp2611_flash_resource,
+};
+
+static struct ixp2000_i2c_pins enp2611_i2c_gpio_pins = {
+        .sda_pin        = ENP2611_GPIO_SDA,
+        .scl_pin        = ENP2611_GPIO_SCL,
+};
+
+static struct platform_device enp2611_i2c_controller = {
+        .name           = "IXP2000-I2C",
+        .id             = 0,
+        .dev            = {
+                .platform_data = &enp2611_i2c_gpio_pins
+        },
+        .num_resources  = 0
+};
+
+static struct platform_device *enp2611_devices[] __initdata = {
+        &enp2611_flash,
+        &enp2611_i2c_controller
+};
+
+static void __init enp2611_init_machine(void)
+{
+        platform_add_devices(enp2611_devices, ARRAY_SIZE(enp2611_devices));
+        ixp2000_uart_init();
+}
+
+
+MACHINE_START(ENP2611, "Radisys ENP-2611 PCI network processor board")
+        /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
+        .boot_params    = 0x00000100,
+        .map_io         = enp2611_map_io,
+        .init_irq       = ixp2000_init_irq,
+        .timer          = &enp2611_timer,
+        .init_machine   = enp2611_init_machine,
+MACHINE_END
+
+