LXR linux/arch/arm/mach-iop33x/iq80331.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * arch/arm/mach-iop33x/iq80331.c
   4 *
   5 * Board support code for the Intel IQ80331 platform.
   6 *
   7 * Author: Dave Jiang <dave.jiang@intel.com>
   8 * Copyright (C) 2003 Intel Corp.
   9 */
  10
  11#include <linux/mm.h>
  12#include <linux/init.h>
  13#include <linux/kernel.h>
  14#include <linux/pci.h>
  15#include <linux/string.h>
  16#include <linux/serial_core.h>
  17#include <linux/serial_8250.h>
  18#include <linux/mtd/physmap.h>
  19#include <linux/platform_device.h>
  20#include <linux/io.h>
  21#include <mach/hardware.h>
  22#include <asm/irq.h>
  23#include <asm/mach/arch.h>
  24#include <asm/mach/map.h>
  25#include <asm/mach/pci.h>
  26#include <asm/mach/time.h>
  27#include <asm/mach-types.h>
  28#include <asm/page.h>
  29#include <asm/pgtable.h>
  30#include <mach/time.h>
  31
  32/*
  33 * IQ80331 timer tick configuration.
  34 */
  35static void __init iq80331_timer_init(void)
  36{
  37        /* D-Step parts run at a higher internal bus frequency */
  38        if (*IOP3XX_ATURID >= 0xa)
  39                iop_init_time(333000000);
  40        else
  41                iop_init_time(266000000);
  42}
  43
  44
  45/*
  46 * IQ80331 PCI.
  47 */
  48static int __init
  49iq80331_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  50{
  51        int irq;
  52
  53        if (slot == 1 && pin == 1) {
  54                /* PCI-X Slot INTA */
  55                irq = IRQ_IOP33X_XINT1;
  56        } else if (slot == 1 && pin == 2) {
  57                /* PCI-X Slot INTB */
  58                irq = IRQ_IOP33X_XINT2;
  59        } else if (slot == 1 && pin == 3) {
  60                /* PCI-X Slot INTC */
  61                irq = IRQ_IOP33X_XINT3;
  62        } else if (slot == 1 && pin == 4) {
  63                /* PCI-X Slot INTD */
  64                irq = IRQ_IOP33X_XINT0;
  65        } else if (slot == 2) {
  66                /* GigE */
  67                irq = IRQ_IOP33X_XINT2;
  68        } else {
  69                printk(KERN_ERR "iq80331_pci_map_irq() called for unknown "
  70                        "device PCI:%d:%d:%d\n", dev->bus->number,
  71                        PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn));
  72                irq = -1;
  73        }
  74
  75        return irq;
  76}
  77
  78static struct hw_pci iq80331_pci __initdata = {
  79        .nr_controllers = 1,
  80        .ops            = &iop3xx_ops,
  81        .setup          = iop3xx_pci_setup,
  82        .preinit        = iop3xx_pci_preinit_cond,
  83        .map_irq        = iq80331_pci_map_irq,
  84};
  85
  86static int __init iq80331_pci_init(void)
  87{
  88        if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) &&
  89                machine_is_iq80331())
  90                pci_common_init(&iq80331_pci);
  91
  92        return 0;
  93}
  94
  95subsys_initcall(iq80331_pci_init);
  96
  97
  98/*
  99 * IQ80331 machine initialisation.
 100 */
 101static struct physmap_flash_data iq80331_flash_data = {
 102        .width          = 1,
 103};
 104
 105static struct resource iq80331_flash_resource = {
 106        .start          = 0xc0000000,
 107        .end            = 0xc07fffff,
 108        .flags          = IORESOURCE_MEM,
 109};
 110
 111static struct platform_device iq80331_flash_device = {
 112        .name           = "physmap-flash",
 113        .id             = 0,
 114        .dev            = {
 115                .platform_data  = &iq80331_flash_data,
 116        },
 117        .num_resources  = 1,
 118        .resource       = &iq80331_flash_resource,
 119};
 120
 121static struct resource iq80331_gpio_res[] = {
 122        DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x1780), 0x10),
 123};
 124
 125static void __init iq80331_init_machine(void)
 126{
 127        platform_device_register_simple("gpio-iop", 0,
 128                                        iq80331_gpio_res,
 129                                        ARRAY_SIZE(iq80331_gpio_res));
 130        platform_device_register(&iop3xx_i2c0_device);
 131        platform_device_register(&iop3xx_i2c1_device);
 132        platform_device_register(&iop33x_uart0_device);
 133        platform_device_register(&iop33x_uart1_device);
 134        platform_device_register(&iq80331_flash_device);
 135        platform_device_register(&iop3xx_dma_0_channel);
 136        platform_device_register(&iop3xx_dma_1_channel);
 137        platform_device_register(&iop3xx_aau_channel);
 138}
 139
 140MACHINE_START(IQ80331, "Intel IQ80331")
 141        /* Maintainer: Intel Corp. */
 142        .atag_offset    = 0x100,
 143        .map_io         = iop3xx_map_io,
 144        .init_irq       = iop33x_init_irq,
 145        .init_time      = iq80331_timer_init,
 146        .init_machine   = iq80331_init_machine,
 147        .restart        = iop3xx_restart,
 148MACHINE_END
 149