1/* 2 * arch/arm/mach-iop32x/iq80321.c 3 * 4 * Board support code for the Intel IQ80321 platform. 5 * 6 * Author: Rory Bolt <rorybolt@pacbell.net> 7 * Copyright (C) 2002 Rory Bolt 8 * Copyright (C) 2004 Intel Corp. 9 * 10 * This program is free software; you can redistribute it and/or modify it 11 * under the terms of the GNU General Public License as published by the 12 * Free Software Foundation; either version 2 of the License, or (at your 13 * option) any later version. 14 */ 15 16#include <linux/mm.h> 17#include <linux/init.h> 18#include <linux/kernel.h> 19#include <linux/pci.h> 20#include <linux/string.h> 21#include <linux/slab.h> 22#include <linux/serial_core.h> 23#include <linux/serial_8250.h> 24#include <linux/mtd/physmap.h> 25#include <linux/platform_device.h> 26#include <asm/hardware.h> 27#include <asm/io.h> 28#include <asm/irq.h> 29#include <asm/mach/arch.h> 30#include <asm/mach/map.h> 31#include <asm/mach/pci.h> 32#include <asm/mach/time.h> 33#include <asm/mach-types.h> 34#include <asm/page.h> 35#include <asm/pgtable.h> 36#include <asm/arch/time.h> 37 38/* 39 * IQ80321 timer tick configuration. 40 */ 41static void __init iq80321_timer_init(void) 42{ 43 /* 33.333 MHz crystal. */ 44 iop_init_time(200000000); 45} 46 47static struct sys_timer iq80321_timer = { 48 .init = iq80321_timer_init, 49 .offset = iop_gettimeoffset, 50}; 51 52 53/* 54 * IQ80321 I/O. 55 */ 56static struct map_desc iq80321_io_desc[] __initdata = { 57 { /* on-board devices */ 58 .virtual = IQ80321_UART, 59 .pfn = __phys_to_pfn(IQ80321_UART), 60 .length = 0x00100000, 61 .type = MT_DEVICE, 62 }, 63}; 64 65void __init iq80321_map_io(void) 66{ 67 iop3xx_map_io(); 68 iotable_init(iq80321_io_desc, ARRAY_SIZE(iq80321_io_desc)); 69} 70 71 72/* 73 * IQ80321 PCI. 74 */ 75static int __init 76iq80321_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) 77{ 78 int irq; 79 80 if ((slot == 2 || slot == 6) && pin == 1) { 81 /* PCI-X Slot INTA */ 82 irq = IRQ_IOP32X_XINT2; 83 } else if ((slot == 2 || slot == 6) && pin == 2) { 84 /* PCI-X Slot INTA */ 85 irq = IRQ_IOP32X_XINT3; 86 } else if ((slot == 2 || slot == 6) && pin == 3) { 87 /* PCI-X Slot INTA */ 88 irq = IRQ_IOP32X_XINT0; 89 } else if ((slot == 2 || slot == 6) && pin == 4) { 90 /* PCI-X Slot INTA */ 91 irq = IRQ_IOP32X_XINT1; 92 } else if (slot == 4 || slot == 8) { 93 /* Gig-E */ 94 irq = IRQ_IOP32X_XINT0; 95 } else { 96 printk(KERN_ERR "iq80321_pci_map_irq() called for unknown " 97 "device PCI:%d:%d:%d\n", dev->bus->number, 98 PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); 99 irq = -1; 100 } 101 102 return irq; 103} 104 105static struct hw_pci iq80321_pci __initdata = { 106 .swizzle = pci_std_swizzle, 107 .nr_controllers = 1, 108 .setup = iop3xx_pci_setup, 109 .preinit = iop3xx_pci_preinit, 110 .scan = iop3xx_pci_scan_bus, 111 .map_irq = iq80321_pci_map_irq, 112}; 113 114static int __init iq80321_pci_init(void) 115{ 116 if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) && 117 machine_is_iq80321()) 118 pci_common_init(&iq80321_pci); 119 120 return 0; 121} 122 123subsys_initcall(iq80321_pci_init); 124 125 126/* 127 * IQ80321 machine initialisation. 128 */ 129static struct physmap_flash_data iq80321_flash_data = { 130 .width = 1, 131}; 132 133static struct resource iq80321_flash_resource = { 134 .start = 0xf0000000, 135 .end = 0xf07fffff, 136 .flags = IORESOURCE_MEM, 137}; 138 139static struct platform_device iq80321_flash_device = { 140 .name = "physmap-flash", 141 .id = 0, 142 .dev = { 143 .platform_data = &iq80321_flash_data, 144 }, 145 .num_resources = 1, 146 .resource = &iq80321_flash_resource, 147}; 148 149static struct plat_serial8250_port iq80321_serial_port[] = { 150 { 151 .mapbase = IQ80321_UART, 152 .membase = (char *)IQ80321_UART, 153 .irq = IRQ_IOP32X_XINT1, 154 .flags = UPF_SKIP_TEST, 155 .iotype = UPIO_MEM, 156 .regshift = 0, 157 .uartclk = 1843200, 158 }, 159 { }, 160}; 161 162static struct resource iq80321_uart_resource = { 163 .start = IQ80321_UART, 164 .end = IQ80321_UART + 7, 165 .flags = IORESOURCE_MEM, 166}; 167 168static struct platform_device iq80321_serial_device = { 169 .name = "serial8250", 170 .id = PLAT8250_DEV_PLATFORM, 171 .dev = { 172 .platform_data = iq80321_serial_port, 173 }, 174 .num_resources = 1, 175 .resource = &iq80321_uart_resource, 176}; 177 178static void __init iq80321_init_machine(void) 179{ 180 platform_device_register(&iop3xx_i2c0_device); 181 platform_device_register(&iop3xx_i2c1_device); 182 platform_device_register(&iq80321_flash_device); 183 platform_device_register(&iq80321_serial_device); 184} 185 186MACHINE_START(IQ80321, "Intel IQ80321") 187 /* Maintainer: Intel Corp. */ 188 .phys_io = IQ80321_UART, 189 .io_pg_offst = ((IQ80321_UART) >> 18) & 0xfffc, 190 .boot_params = 0xa0000100, 191 .map_io = iq80321_map_io, 192 .init_irq = iop32x_init_irq, 193 .timer = &iq80321_timer, 194 .init_machine = iq80321_init_machine, 195MACHINE_END 196