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/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 * IQ80321 timer tick configuration. 39 */ 40static void __init iq80321_timer_init(void) 41{ 42 /* 33.333 MHz crystal. */ 43 iop_init_time(200000000); 44} 45 46static struct sys_timer iq80321_timer = { 47 .init = iq80321_timer_init, 48}; 49 50 51/* 52 * IQ80321 I/O. 53 */ 54static struct map_desc iq80321_io_desc[] __initdata = { 55 { /* on-board devices */ 56 .virtual = IQ80321_UART, 57 .pfn = __phys_to_pfn(IQ80321_UART), 58 .length = 0x00100000, 59 .type = MT_DEVICE, 60 }, 61}; 62 63void __init iq80321_map_io(void) 64{ 65 iop3xx_map_io(); 66 iotable_init(iq80321_io_desc, ARRAY_SIZE(iq80321_io_desc)); 67} 68 69 70/* 71 * IQ80321 PCI. 72 */ 73static int __init 74iq80321_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) 75{ 76 int irq; 77 78 if ((slot == 2 || slot == 6) && pin == 1) { 79 /* PCI-X Slot INTA */ 80 irq = IRQ_IOP32X_XINT2; 81 } else if ((slot == 2 || slot == 6) && pin == 2) { 82 /* PCI-X Slot INTA */ 83 irq = IRQ_IOP32X_XINT3; 84 } else if ((slot == 2 || slot == 6) && pin == 3) { 85 /* PCI-X Slot INTA */ 86 irq = IRQ_IOP32X_XINT0; 87 } else if ((slot == 2 || slot == 6) && pin == 4) { 88 /* PCI-X Slot INTA */ 89 irq = IRQ_IOP32X_XINT1; 90 } else if (slot == 4 || slot == 8) { 91 /* Gig-E */ 92 irq = IRQ_IOP32X_XINT0; 93 } else { 94 printk(KERN_ERR "iq80321_pci_map_irq() called for unknown " 95 "device PCI:%d:%d:%d\n", dev->bus->number, 96 PCI_SLOT(dev->devfn), PCI_FUNC(dev->devfn)); 97 irq = -1; 98 } 99 100 return irq; 101} 102 103static struct hw_pci iq80321_pci __initdata = { 104 .swizzle = pci_std_swizzle, 105 .nr_controllers = 1, 106 .setup = iop3xx_pci_setup, 107 .preinit = iop3xx_pci_preinit_cond, 108 .scan = iop3xx_pci_scan_bus, 109 .map_irq = iq80321_pci_map_irq, 110}; 111 112static int __init iq80321_pci_init(void) 113{ 114 if ((iop3xx_get_init_atu() == IOP3XX_INIT_ATU_ENABLE) && 115 machine_is_iq80321()) 116 pci_common_init(&iq80321_pci); 117 118 return 0; 119} 120 121subsys_initcall(iq80321_pci_init); 122 123 124/* 125 * IQ80321 machine initialisation. 126 */ 127static struct physmap_flash_data iq80321_flash_data = { 128 .width = 1, 129}; 130 131static struct resource iq80321_flash_resource = { 132 .start = 0xf0000000, 133 .end = 0xf07fffff, 134 .flags = IORESOURCE_MEM, 135}; 136 137static struct platform_device iq80321_flash_device = { 138 .name = "physmap-flash", 139 .id = 0, 140 .dev = { 141 .platform_data = &iq80321_flash_data, 142 }, 143 .num_resources = 1, 144 .resource = &iq80321_flash_resource, 145}; 146 147static struct plat_serial8250_port iq80321_serial_port[] = { 148 { 149 .mapbase = IQ80321_UART, 150 .membase = (char *)IQ80321_UART, 151 .irq = IRQ_IOP32X_XINT1, 152 .flags = UPF_SKIP_TEST, 153 .iotype = UPIO_MEM, 154 .regshift = 0, 155 .uartclk = 1843200, 156 }, 157 { }, 158}; 159 160static struct resource iq80321_uart_resource = { 161 .start = IQ80321_UART, 162 .end = IQ80321_UART + 7, 163 .flags = IORESOURCE_MEM, 164}; 165 166static struct platform_device iq80321_serial_device = { 167 .name = "serial8250", 168 .id = PLAT8250_DEV_PLATFORM, 169 .dev = { 170 .platform_data = iq80321_serial_port, 171 }, 172 .num_resources = 1, 173 .resource = &iq80321_uart_resource, 174}; 175 176static void __init iq80321_init_machine(void) 177{ 178 platform_device_register(&iop3xx_i2c0_device); 179 platform_device_register(&iop3xx_i2c1_device); 180 platform_device_register(&iq80321_flash_device); 181 platform_device_register(&iq80321_serial_device); 182 platform_device_register(&iop3xx_dma_0_channel); 183 platform_device_register(&iop3xx_dma_1_channel); 184 platform_device_register(&iop3xx_aau_channel); 185} 186 187MACHINE_START(IQ80321, "Intel IQ80321") 188 /* Maintainer: Intel Corp. */ 189 .phys_io = IQ80321_UART, 190 .io_pg_offst = ((IQ80321_UART) >> 18) & 0xfffc, 191 .boot_params = 0xa0000100, 192 .map_io = iq80321_map_io, 193 .init_irq = iop32x_init_irq, 194 .timer = &iq80321_timer, 195 .init_machine = iq80321_init_machine, 196MACHINE_END 197