1/* 2 * arch/arm/mach-ixp4xx/nas100d-setup.c 3 * 4 * NAS 100d board-setup 5 * 6 * based ixdp425-setup.c: 7 * Copyright (C) 2003-2004 MontaVista Software, Inc. 8 * 9 * Author: Alessandro Zummo <a.zummo@towertech.it> 10 * Author: Rod Whitby <rod@whitby.id.au> 11 * Maintainers: http://www.nslu2-linux.org/ 12 * 13 */ 14 15#include <linux/kernel.h> 16#include <linux/serial.h> 17#include <linux/serial_8250.h> 18#include <linux/leds.h> 19 20#include <asm/mach-types.h> 21#include <asm/mach/arch.h> 22#include <asm/mach/flash.h> 23 24static struct flash_platform_data nas100d_flash_data = { 25 .map_name = "cfi_probe", 26 .width = 2, 27}; 28 29static struct resource nas100d_flash_resource = { 30 .flags = IORESOURCE_MEM, 31}; 32 33static struct platform_device nas100d_flash = { 34 .name = "IXP4XX-Flash", 35 .id = 0, 36 .dev.platform_data = &nas100d_flash_data, 37 .num_resources = 1, 38 .resource = &nas100d_flash_resource, 39}; 40 41#ifdef CONFIG_LEDS_IXP4XX 42static struct resource nas100d_led_resources[] = { 43 { 44 .name = "wlan", /* green led */ 45 .start = 0, 46 .end = 0, 47 .flags = IXP4XX_GPIO_LOW, 48 }, 49 { 50 .name = "ready", /* blue power led (off is flashing!) */ 51 .start = 15, 52 .end = 15, 53 .flags = IXP4XX_GPIO_LOW, 54 }, 55 { 56 .name = "disk", /* yellow led */ 57 .start = 3, 58 .end = 3, 59 .flags = IXP4XX_GPIO_LOW, 60 }, 61}; 62 63static struct platform_device nas100d_leds = { 64 .name = "IXP4XX-GPIO-LED", 65 .id = -1, 66 .num_resources = ARRAY_SIZE(nas100d_led_resources), 67 .resource = nas100d_led_resources, 68}; 69#endif 70 71static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = { 72 .sda_pin = NAS100D_SDA_PIN, 73 .scl_pin = NAS100D_SCL_PIN, 74}; 75 76static struct platform_device nas100d_i2c_controller = { 77 .name = "IXP4XX-I2C", 78 .id = 0, 79 .dev.platform_data = &nas100d_i2c_gpio_pins, 80 .num_resources = 0, 81}; 82 83static struct resource nas100d_uart_resources[] = { 84 { 85 .start = IXP4XX_UART1_BASE_PHYS, 86 .end = IXP4XX_UART1_BASE_PHYS + 0x0fff, 87 .flags = IORESOURCE_MEM, 88 }, 89 { 90 .start = IXP4XX_UART2_BASE_PHYS, 91 .end = IXP4XX_UART2_BASE_PHYS + 0x0fff, 92 .flags = IORESOURCE_MEM, 93 } 94}; 95 96static struct plat_serial8250_port nas100d_uart_data[] = { 97 { 98 .mapbase = IXP4XX_UART1_BASE_PHYS, 99 .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET, 100 .irq = IRQ_IXP4XX_UART1, 101 .flags = UPF_BOOT_AUTOCONF, 102 .iotype = UPIO_MEM, 103 .regshift = 2, 104 .uartclk = IXP4XX_UART_XTAL, 105 }, 106 { 107 .mapbase = IXP4XX_UART2_BASE_PHYS, 108 .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, 109 .irq = IRQ_IXP4XX_UART2, 110 .flags = UPF_BOOT_AUTOCONF, 111 .iotype = UPIO_MEM, 112 .regshift = 2, 113 .uartclk = IXP4XX_UART_XTAL, 114 }, 115 { } 116}; 117 118static struct platform_device nas100d_uart = { 119 .name = "serial8250", 120 .id = PLAT8250_DEV_PLATFORM, 121 .dev.platform_data = nas100d_uart_data, 122 .num_resources = 2, 123 .resource = nas100d_uart_resources, 124}; 125 126static struct platform_device *nas100d_devices[] __initdata = { 127 &nas100d_i2c_controller, 128 &nas100d_flash, 129#ifdef CONFIG_LEDS_IXP4XX 130 &nas100d_leds, 131#endif 132}; 133 134static void nas100d_power_off(void) 135{ 136 /* This causes the box to drop the power and go dead. */ 137 138 /* enable the pwr cntl gpio */ 139 gpio_line_config(NAS100D_PO_GPIO, IXP4XX_GPIO_OUT); 140 141 /* do the deed */ 142 gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH); 143} 144 145static void __init nas100d_init(void) 146{ 147 ixp4xx_sys_init(); 148 149 /* gpio 14 and 15 are _not_ clocks */ 150 *IXP4XX_GPIO_GPCLKR = 0; 151 152 nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); 153 nas100d_flash_resource.end = 154 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; 155 156 pm_power_off = nas100d_power_off; 157 158 /* 159 * This is only useful on a modified machine, but it is valuable 160 * to have it first in order to see debug messages, and so that 161 * it does *not* get removed if platform_add_devices fails! 162 */ 163 (void)platform_device_register(&nas100d_uart); 164 165 platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices)); 166} 167 168MACHINE_START(NAS100D, "Iomega NAS 100d") 169 /* Maintainer: www.nslu2-linux.org */ 170 .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS, 171 .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC, 172 .boot_params = 0x00000100, 173 .map_io = ixp4xx_map_io, 174 .init_irq = ixp4xx_init_irq, 175 .timer = &ixp4xx_timer, 176 .init_machine = nas100d_init, 177MACHINE_END 178