2 * arch/arm/mach-ixp4xx/nslu2-setup.c
6 * based ixdp425-setup.c:
7 * Copyright (C) 2003-2004 MontaVista Software, Inc.
9 * Author: Mark Rakes <mrakes at mac.com>
10 * Author: Rod Whitby <rod@whitby.id.au>
11 * Maintainers: http://www.nslu2-linux.org/
13 * Fixed missing init_time in MACHINE_START kas11 10/22/04
14 * Changed to conform to new style __init ixdp425 kas11 10/22/04
17 #include <linux/kernel.h>
18 #include <linux/serial.h>
19 #include <linux/serial_8250.h>
20 #include <linux/leds.h>
21 #include <linux/i2c-gpio.h>
23 #include <asm/mach-types.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach/flash.h>
26 #include <asm/mach/time.h>
28 static struct flash_platform_data nslu2_flash_data = {
29 .map_name = "cfi_probe",
33 static struct resource nslu2_flash_resource = {
34 .flags = IORESOURCE_MEM,
37 static struct platform_device nslu2_flash = {
38 .name = "IXP4XX-Flash",
40 .dev.platform_data = &nslu2_flash_data,
42 .resource = &nslu2_flash_resource,
45 static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = {
46 .sda_pin = NSLU2_SDA_PIN,
47 .scl_pin = NSLU2_SCL_PIN,
50 #ifdef CONFIG_LEDS_IXP4XX
51 static struct resource nslu2_led_resources[] = {
53 .name = "ready", /* green led */
54 .start = NSLU2_LED_GRN_GPIO,
55 .end = NSLU2_LED_GRN_GPIO,
56 .flags = IXP4XX_GPIO_HIGH,
59 .name = "status", /* red led */
60 .start = NSLU2_LED_RED_GPIO,
61 .end = NSLU2_LED_RED_GPIO,
62 .flags = IXP4XX_GPIO_HIGH,
66 .start = NSLU2_LED_DISK1_GPIO,
67 .end = NSLU2_LED_DISK1_GPIO,
68 .flags = IXP4XX_GPIO_LOW,
72 .start = NSLU2_LED_DISK2_GPIO,
73 .end = NSLU2_LED_DISK2_GPIO,
74 .flags = IXP4XX_GPIO_LOW,
78 static struct platform_device nslu2_leds = {
79 .name = "IXP4XX-GPIO-LED",
81 .num_resources = ARRAY_SIZE(nslu2_led_resources),
82 .resource = nslu2_led_resources,
86 static struct platform_device nslu2_i2c_gpio = {
90 .platform_data = &nslu2_i2c_gpio_data,
94 static struct platform_device nslu2_beeper = {
95 .name = "ixp4xx-beeper",
96 .id = NSLU2_GPIO_BUZZ,
100 static struct resource nslu2_uart_resources[] = {
102 .start = IXP4XX_UART1_BASE_PHYS,
103 .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
104 .flags = IORESOURCE_MEM,
107 .start = IXP4XX_UART2_BASE_PHYS,
108 .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
109 .flags = IORESOURCE_MEM,
113 static struct plat_serial8250_port nslu2_uart_data[] = {
115 .mapbase = IXP4XX_UART1_BASE_PHYS,
116 .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
117 .irq = IRQ_IXP4XX_UART1,
118 .flags = UPF_BOOT_AUTOCONF,
121 .uartclk = IXP4XX_UART_XTAL,
124 .mapbase = IXP4XX_UART2_BASE_PHYS,
125 .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
126 .irq = IRQ_IXP4XX_UART2,
127 .flags = UPF_BOOT_AUTOCONF,
130 .uartclk = IXP4XX_UART_XTAL,
135 static struct platform_device nslu2_uart = {
136 .name = "serial8250",
137 .id = PLAT8250_DEV_PLATFORM,
138 .dev.platform_data = nslu2_uart_data,
140 .resource = nslu2_uart_resources,
143 static struct platform_device *nslu2_devices[] __initdata = {
147 #ifdef CONFIG_LEDS_IXP4XX
152 static void nslu2_power_off(void)
154 /* This causes the box to drop the power and go dead. */
156 /* enable the pwr cntl gpio */
157 gpio_line_config(NSLU2_PO_GPIO, IXP4XX_GPIO_OUT);
160 gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
163 static void __init nslu2_timer_init(void)
165 /* The xtal on this machine is non-standard. */
166 ixp4xx_timer_freq = NSLU2_FREQ;
168 /* Call standard timer_init function. */
172 static struct sys_timer nslu2_timer = {
173 .init = nslu2_timer_init,
176 static void __init nslu2_init(void)
180 nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
181 nslu2_flash_resource.end =
182 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
184 pm_power_off = nslu2_power_off;
187 * This is only useful on a modified machine, but it is valuable
188 * to have it first in order to see debug messages, and so that
189 * it does *not* get removed if platform_add_devices fails!
191 (void)platform_device_register(&nslu2_uart);
193 platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
196 MACHINE_START(NSLU2, "Linksys NSLU2")
197 /* Maintainer: www.nslu2-linux.org */
198 .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
199 .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
200 .boot_params = 0x00000100,
201 .map_io = ixp4xx_map_io,
202 .init_irq = ixp4xx_init_irq,
203 .timer = &nslu2_timer,
204 .init_machine = nslu2_init,