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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>
* 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/init.h>
#include <linux/device.h>
#include <linux/serial.h>
#include <linux/tty.h>
#include <linux/serial_core.h>
#include <asm/types.h>
#include <asm/setup.h>
#include <asm/memory.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/irq.h>
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#ifdef __ARMEB__
#define REG_OFFSET 3
#else
#define REG_OFFSET 0
#endif
/*
* NSLU2 uses only one serial port
*/
static struct uart_port nslu2_serial_ports[] = {
{
.membase = (char*)(IXP4XX_UART1_BASE_VIRT + REG_OFFSET),
.mapbase = (IXP4XX_UART1_BASE_PHYS),
.irq = IRQ_IXP4XX_UART1,
.flags = UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.regshift = 2,
.uartclk = IXP4XX_UART_XTAL,
.line = 0,
.type = PORT_XSCALE,
.fifosize = 32
}
#if 0
, {
.membase = (char*)(IXP4XX_UART2_BASE_VIRT + REG_OFFSET),
.mapbase = (IXP4XX_UART2_BASE_PHYS),
.irq = IRQ_IXP4XX_UART2,
.flags = UPF_SKIP_TEST,
.iotype = UPIO_MEM,
.regshift = 2,
.uartclk = IXP4XX_UART_XTAL,
.line = 1,
.type = PORT_XSCALE,
.fifosize = 32
}
#endif
};
void __init nslu2_map_io(void)
{
early_serial_setup(&nslu2_serial_ports[0]);
#if 0
early_serial_setup(&nslu2_serial_ports[1]);
#endif
ixp4xx_map_io();
}
static struct flash_platform_data nslu2_flash_data = {
.map_name = "cfi_probe",
.width = 2,
};
static struct resource nslu2_flash_resource = {
.start = NSLU2_FLASH_BASE,
.end = NSLU2_FLASH_BASE + NSLU2_FLASH_SIZE,
.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 ixp4xx_i2c_pins nslu2_i2c_gpio_pins = {
.sda_pin = NSLU2_SDA_PIN,
.scl_pin = NSLU2_SCL_PIN,
};
static struct platform_device nslu2_i2c_controller = {
.name = "IXP4XX-I2C",
.id = 0,
.dev = {
.platform_data = &nslu2_i2c_gpio_pins,
},
.num_resources = 0
};
static struct platform_device *nslu2_devices[] __initdata = {
&nslu2_i2c_controller,
&nslu2_flash
};
static void n2_power_off(void)
{
/* This causes the box to drop the power and go dead. */
#define GPIO_PO_BM 0x0100 //b0000 0001 0000 0000
*IXP4XX_GPIO_GPOER &= ~GPIO_PO_BM; // enable the pwr cntl gpio
*IXP4XX_GPIO_GPOUTR |= GPIO_PO_BM; // do the deed
}
static void __init nslu2_init(void)
{
/* Need power off to work. */
pm_power_off = n2_power_off;
platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
}
MACHINE_START(NSLU2, "Linksys NSLU2")
MAINTAINER("www.nslu2-linux.org")
BOOT_MEM(PHYS_OFFSET, IXP4XX_PERIPHERAL_BASE_PHYS,
IXP4XX_PERIPHERAL_BASE_VIRT)
MAPIO(nslu2_map_io)
INITIRQ(ixp4xx_init_irq) //FIXME: all irq are off here
.timer = &ixp4xx_timer,
// INITTIME(ixp4xx_init_time) //this was missing in 2.6.7 code ...soft reboot needed?
BOOT_PARAMS(0x0100)
INIT_MACHINE(nslu2_init)
MACHINE_END
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