1/* 2 * arch/arm/mach-iop33x/iq80331.c 3 * 4 * Board support code for the Intel IQ80331 platform. 5 * 6 * Author: Dave Jiang <dave.jiang@intel.com> 7 * Copyright (C) 2003 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 <asm/hardware.h> 26#include <asm/io.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 <asm/arch/time.h> 36 37/* 38 * IQ80331 timer tick configuration. 39 */ 40static void __init iq80331_timer_init(void) 41{ 42 /* D-Step parts run at a higher internal bus frequency */ 43 if (*IOP3XX_ATURID >= 0xa) 44 iop_init_time(333000000); 45 else 46 iop_init_time(266000000); 47} 48 49static struct sys_timer iq80331_timer = { 50 .init = iq80331_timer_init, 51 .offset = iop_gettimeoffset, 52}; 53 54 55/* 56 * IQ80331 PCI. 57 */ 58static int __init 59iq80331_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) 60{ 61 int irq; 62 63 if (slot == 1 && pin == 1) { 64 /* PCI-X Slot INTA */ 65 irq = IRQ_IOP33X_XINT1; 66 } else if (slot == 1 && pin == 2) { 67 /* PCI-X Slot INTB */ 68 irq = IRQ_IOP33X_XINT2; 69 } else if (slot == 1 && pin == 3) { 70 /* PCI-X Slot INTC */ 71 irq = IRQ_IOP33X_XINT3; 72 } else if (slot == 1 && pin == 4) { 73 /* PCI-X Slot INTD */ 74 irq = IRQ_IOP33X_XINT0; 75 } else if (slot == 2) { 76 /* GigE */ 77 irq = IRQ_IOP33X_XINT2; 78 } else { 79 printk(KERN_ERR "iq80331_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 iq80331_pci __initdata = { 89 .swizzle = pci_std_swizzle, 90 .nr_controllers = 1, 91 .setup = iop3xx_pci_setup, 92 .preinit = iop3xx_pci_preinit, 93 .scan = iop3xx_pci_scan_bus, 94 .map_irq = iq80331_pci_map_irq, 95}; 96 97static int __init iq80331_pci_init(void) 98{ 99 if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) && 100 machine_is_iq80331()) 101 pci_common_init(&iq80331_pci); 102 103 return 0; 104} 105 106subsys_initcall(iq80331_pci_init); 107 108 109/* 110 * IQ80331 machine initialisation. 111 */ 112static struct physmap_flash_data iq80331_flash_data = { 113 .width = 1, 114}; 115 116static struct resource iq80331_flash_resource = { 117 .start = 0xc0000000, 118 .end = 0xc07fffff, 119 .flags = IORESOURCE_MEM, 120}; 121 122static struct platform_device iq80331_flash_device = { 123 .name = "physmap-flash", 124 .id = 0, 125 .dev = { 126 .platform_data = &iq80331_flash_data, 127 }, 128 .num_resources = 1, 129 .resource = &iq80331_flash_resource, 130}; 131 132static void __init iq80331_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(&iq80331_flash_device); 139} 140 141MACHINE_START(IQ80331, "Intel IQ80331") 142 /* Maintainer: Intel Corp. */ 143 .phys_io = 0xfefff000, 144 .io_pg_offst = ((0xfffff000) >> 18) & 0xfffc, 145 .boot_params = 0x00000100, 146 .map_io = iop3xx_map_io, 147 .init_irq = iop33x_init_irq, 148 .timer = &iq80331_timer, 149 .init_machine = iq80331_init_machine, 150MACHINE_END 151