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/*
* arch/arm/mach-ixp4xx/nslu2-setup.c
*
* NSLU2 board-setup
*
* based ixdp425-setup.c:
* Copyright (C) 2003-2004 MontaVista Software, Inc.
*
* Author: Mark Rakes <mrakes at mac.com>
* Author: Rod Whitby <rod@whitby.id.au>
* Maintainers: http://www.nslu2-linux.org/
*
* Fixed missing init_time in MACHINE_START kas11 10/22/04
* Changed to conform to new style __init ixdp425 kas11 10/22/04
*/
#include <linux/kernel.h>
#include <linux/serial.h>
#include <linux/serial_8250.h>
#include <linux/leds.h>
#include <linux/i2c-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/time.h>
static struct flash_platform_data nslu2_flash_data = {
.map_name = "cfi_probe",
.width = 2,
};
static struct resource nslu2_flash_resource = {
.flags = IORESOURCE_MEM,
};
static struct platform_device nslu2_flash = {
.name = "IXP4XX-Flash",
.id = 0,
.dev.platform_data = &nslu2_flash_data,
.num_resources = 1,
.resource = &nslu2_flash_resource,
};
static struct i2c_gpio_platform_data nslu2_i2c_gpio_data = {
.sda_pin = NSLU2_SDA_PIN,
.scl_pin = NSLU2_SCL_PIN,
};
#ifdef CONFIG_LEDS_IXP4XX
static struct resource nslu2_led_resources[] = {
{
.name = "ready", /* green led */
.start = NSLU2_LED_GRN_GPIO,
.end = NSLU2_LED_GRN_GPIO,
.flags = IXP4XX_GPIO_HIGH,
},
{
.name = "status", /* red led */
.start = NSLU2_LED_RED_GPIO,
.end = NSLU2_LED_RED_GPIO,
.flags = IXP4XX_GPIO_HIGH,
},
{
.name = "disk-1",
.start = NSLU2_LED_DISK1_GPIO,
.end = NSLU2_LED_DISK1_GPIO,
.flags = IXP4XX_GPIO_LOW,
},
{
.name = "disk-2",
.start = NSLU2_LED_DISK2_GPIO,
.end = NSLU2_LED_DISK2_GPIO,
.flags = IXP4XX_GPIO_LOW,
},
};
static struct platform_device nslu2_leds = {
.name = "IXP4XX-GPIO-LED",
.id = -1,
.num_resources = ARRAY_SIZE(nslu2_led_resources),
.resource = nslu2_led_resources,
};
#endif
static struct platform_device nslu2_i2c_gpio = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &nslu2_i2c_gpio_data,
},
};
static struct platform_device nslu2_beeper = {
.name = "ixp4xx-beeper",
.id = NSLU2_GPIO_BUZZ,
.num_resources = 0,
};
static struct resource nslu2_uart_resources[] = {
{
.start = IXP4XX_UART1_BASE_PHYS,
.end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
},
{
.start = IXP4XX_UART2_BASE_PHYS,
.end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
.flags = IORESOURCE_MEM,
}
};
static struct plat_serial8250_port nslu2_uart_data[] = {
{
.mapbase = IXP4XX_UART1_BASE_PHYS,
.membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
.irq = IRQ_IXP4XX_UART1,
.flags = UPF_BOOT_AUTOCONF,
.iotype = UPIO_MEM,
.regshift = 2,
.uartclk = IXP4XX_UART_XTAL,
},
{
.mapbase = IXP4XX_UART2_BASE_PHYS,
.membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
.irq = IRQ_IXP4XX_UART2,
.flags = UPF_BOOT_AUTOCONF,
.iotype = UPIO_MEM,
.regshift = 2,
.uartclk = IXP4XX_UART_XTAL,
},
{ }
};
static struct platform_device nslu2_uart = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev.platform_data = nslu2_uart_data,
.num_resources = 2,
.resource = nslu2_uart_resources,
};
static struct platform_device *nslu2_devices[] __initdata = {
&nslu2_i2c_gpio,
&nslu2_flash,
&nslu2_beeper,
#ifdef CONFIG_LEDS_IXP4XX
&nslu2_leds,
#endif
};
static void nslu2_power_off(void)
{
/* This causes the box to drop the power and go dead. */
/* enable the pwr cntl gpio */
gpio_line_config(NSLU2_PO_GPIO, IXP4XX_GPIO_OUT);
/* do the deed */
gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
}
static void __init nslu2_timer_init(void)
{
/* The xtal on this machine is non-standard. */
ixp4xx_timer_freq = NSLU2_FREQ;
/* Call standard timer_init function. */
ixp4xx_timer_init();
}
static struct sys_timer nslu2_timer = {
.init = nslu2_timer_init,
};
static void __init nslu2_init(void)
{
ixp4xx_sys_init();
nslu2_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
nslu2_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
pm_power_off = nslu2_power_off;
/*
* This is only useful on a modified machine, but it is valuable
* to have it first in order to see debug messages, and so that
* it does *not* get removed if platform_add_devices fails!
*/
(void)platform_device_register(&nslu2_uart);
platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
}
MACHINE_START(NSLU2, "Linksys NSLU2")
/* Maintainer: www.nslu2-linux.org */
.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
.boot_params = 0x00000100,
.map_io = ixp4xx_map_io,
.init_irq = ixp4xx_init_irq,
.timer = &nslu2_timer,
.init_machine = nslu2_init,
MACHINE_END
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