LXR linux/arch/arm/mach-iop33x/iq80332.c

   1/*
   2 * arch/arm/mach-iop33x/iq80332.c
   3 *
   4 * Board support code for the Intel IQ80332 platform.
   5 *
   6 * Author: Dave Jiang <dave.jiang@intel.com>
   7 * Copyright (C) 2004 Intel Corp.
   8 *
   9 * This program is free software; you can redistribute it and/or modify it
  10 * under the terms of the GNU General Public License as published by the
  11 * Free Software Foundation; either version 2 of the License, or (at your
  12 * option) any later version.
  13 */
  14
  15#include <linux/mm.h>
  16#include <linux/init.h>
  17#include <linux/kernel.h>
  18#include <linux/pci.h>
  19#include <linux/string.h>
  20#include <linux/slab.h>
  21#include <linux/serial_core.h>
  22#include <linux/serial_8250.h>
  23#include <linux/mtd/physmap.h>
  24#include <linux/platform_device.h>
  25#include <linux/io.h>
  26#include <mach/hardware.h>
  27#include <asm/irq.h>
  28#include <asm/mach/arch.h>
  29#include <asm/mach/map.h>
  30#include <asm/mach/pci.h>
  31#include <asm/mach/time.h>
  32#include <asm/mach-types.h>
  33#include <asm/page.h>
  34#include <asm/pgtable.h>
  35#include <mach/time.h>
  36
  37/*
  38 * IQ80332 timer tick configuration.
  39 */
  40static void __init iq80332_timer_init(void)
  41{
  42        /* D-Step parts and the iop333 run at a higher internal bus frequency */
  43        if (*IOP3XX_ATURID >= 0xa || *IOP3XX_ATUDID == 0x374)
  44                iop_init_time(333000000);
  45        else
  46                iop_init_time(266000000);
  47}
  48
  49static struct sys_timer iq80332_timer = {
  50        .init           = iq80332_timer_init,
  51        .offset         = iop_gettimeoffset,
  52};
  53
  54
  55/*
  56 * IQ80332 PCI.
  57 */
  58static int __init
  59iq80332_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
  60{
  61        int irq;
  62
  63        if (slot == 4 && pin == 1) {
  64                /* PCI-X Slot INTA */
  65                irq = IRQ_IOP33X_XINT0;
  66        } else if (slot == 4 && pin == 2) {
  67                /* PCI-X Slot INTB */
  68                irq = IRQ_IOP33X_XINT1;
  69        } else if (slot == 4 && pin == 3) {
  70                /* PCI-X Slot INTC */
  71                irq = IRQ_IOP33X_XINT2;
  72        } else if (slot == 4 && pin == 4) {
  73                /* PCI-X Slot INTD */
  74                irq = IRQ_IOP33X_XINT3;
  75        } else if (slot == 6) {
  76                /* GigE */
  77                irq = IRQ_IOP33X_XINT2;
  78        } else {
  79                printk(KERN_ERR "iq80332_pci_map_irq() called for unknown "
  80                        "device PCI:%d:%d:%d\n", dev->bus->number,
  81                        PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
  82                irq = -1;
  83        }
  84
  85        return irq;
  86}
  87
  88static struct hw_pci iq80332_pci __initdata = {
  89        .swizzle        = pci_std_swizzle,
  90        .nr_controllers = 1,
  91        .setup          = iop3xx_pci_setup,
  92        .preinit        = iop3xx_pci_preinit_cond,
  93        .scan           = iop3xx_pci_scan_bus,
  94        .map_irq        = iq80332_pci_map_irq,
  95};
  96
  97static int __init iq80332_pci_init(void)
  98{
  99        if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
 100                machine_is_iq80332())
 101                pci_common_init(&iq80332_pci);
 102
 103        return 0;
 104}
 105
 106subsys_initcall(iq80332_pci_init);
 107
 108
 109/*
 110 * IQ80332 machine initialisation.
 111 */
 112static struct physmap_flash_data iq80332_flash_data = {
 113        .width          = 1,
 114};
 115
 116static struct resource iq80332_flash_resource = {
 117        .start          = 0xc0000000,
 118        .end            = 0xc07fffff,
 119        .flags          = IORESOURCE_MEM,
 120};
 121
 122static struct platform_device iq80332_flash_device = {
 123        .name           = "physmap-flash",
 124        .id             = 0,
 125        .dev            = {
 126                .platform_data  = &iq80332_flash_data,
 127        },
 128        .num_resources  = 1,
 129        .resource       = &iq80332_flash_resource,
 130};
 131
 132static void __init iq80332_init_machine(void)
 133{
 134        platform_device_register(&iop3xx_i2c0_device);
 135        platform_device_register(&iop3xx_i2c1_device);
 136        platform_device_register(&iop33x_uart0_device);
 137        platform_device_register(&iop33x_uart1_device);
 138        platform_device_register(&iq80332_flash_device);
 139        platform_device_register(&iop3xx_dma_0_channel);
 140        platform_device_register(&iop3xx_dma_1_channel);
 141        platform_device_register(&iop3xx_aau_channel);
 142}
 143
 144MACHINE_START(IQ80332, "Intel IQ80332")
 145        /* Maintainer: Intel Corp. */
 146        .phys_io        = 0xfefff000,
 147        .io_pg_offst    = ((0xfffff000) >> 18) & 0xfffc,
 148        .boot_params    = 0x00000100,
 149        .map_io         = iop3xx_map_io,
 150        .init_irq       = iop33x_init_irq,
 151        .timer          = &iq80332_timer,
 152        .init_machine   = iq80332_init_machine,
 153MACHINE_END
 154