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/*
* DSM-G600 board-setup
*
* Copyright (C) 2006 Tower Technologies
* Author: Alessandro Zummo <a.zummo@towertech.it>
*
* based ixdp425-setup.c:
* Copyright (C) 2003-2004 MontaVista Software, Inc.
*
* Author: Alessandro Zummo <a.zummo@towertech.it>
* Maintainers: http://www.nslu2-linux.org/
*/
#include <linux/kernel.h>
#include <linux/serial.h>
#include <linux/serial_8250.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 dsmg600_flash_data = {
.map_name = "cfi_probe",
.width = 2,
};
static struct resource dsmg600_flash_resource = {
.flags = IORESOURCE_MEM,
};
static struct platform_device dsmg600_flash = {
.name = "IXP4XX-Flash",
.id = 0,
.dev.platform_data = &dsmg600_flash_data,
.num_resources = 1,
.resource = &dsmg600_flash_resource,
};
static struct i2c_gpio_platform_data dsmg600_i2c_gpio_data = {
.sda_pin = DSMG600_SDA_PIN,
.scl_pin = DSMG600_SCL_PIN,
};
static struct platform_device dsmg600_i2c_gpio = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &dsmg600_i2c_gpio_data,
},
};
#ifdef CONFIG_LEDS_CLASS
static struct resource dsmg600_led_resources[] = {
{
.name = "power",
.start = DSMG600_LED_PWR_GPIO,
.end = DSMG600_LED_PWR_GPIO,
.flags = IXP4XX_GPIO_HIGH,
},
{
.name = "wlan",
.start = DSMG600_LED_WLAN_GPIO,
.end = DSMG600_LED_WLAN_GPIO,
.flags = IXP4XX_GPIO_LOW,
},
};
static struct platform_device dsmg600_leds = {
.name = "IXP4XX-GPIO-LED",
.id = -1,
.num_resources = ARRAY_SIZE(dsmg600_led_resources),
.resource = dsmg600_led_resources,
};
#endif
static struct resource dsmg600_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 dsmg600_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 dsmg600_uart = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM,
.dev.platform_data = dsmg600_uart_data,
.num_resources = ARRAY_SIZE(dsmg600_uart_resources),
.resource = dsmg600_uart_resources,
};
static struct platform_device *dsmg600_devices[] __initdata = {
&dsmg600_i2c_gpio,
&dsmg600_flash,
};
static void dsmg600_power_off(void)
{
/* enable the pwr cntl gpio */
gpio_line_config(DSMG600_PO_GPIO, IXP4XX_GPIO_OUT);
/* poweroff */
gpio_line_set(DSMG600_PO_GPIO, IXP4XX_GPIO_HIGH);
}
static void __init dsmg600_timer_init(void)
{
/* The xtal on this machine is non-standard. */
ixp4xx_timer_freq = DSMG600_FREQ;
/* Call standard timer_init function. */
ixp4xx_timer_init();
}
static struct sys_timer dsmg600_timer = {
.init = dsmg600_timer_init,
};
static void __init dsmg600_init(void)
{
ixp4xx_sys_init();
/* Make sure that GPIO14 and GPIO15 are not used as clocks */
*IXP4XX_GPIO_GPCLKR = 0;
dsmg600_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
dsmg600_flash_resource.end =
IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
pm_power_off = dsmg600_power_off;
/* The UART is required on the DSM-G600 (Redboot cannot use the
* NIC) -- do it here so that it does *not* get removed if
* platform_add_devices fails!
*/
(void)platform_device_register(&dsmg600_uart);
platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices));
#ifdef CONFIG_LEDS_CLASS
/* We don't care whether or not this works. */
(void)platform_device_register(&dsmg600_leds);
#endif
}
MACHINE_START(DSMG600, "D-Link DSM-G600 RevA")
/* 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 = &dsmg600_timer,
.init_machine = dsmg600_init,
MACHINE_END
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