178 lines
4.1 KiB
C
178 lines
4.1 KiB
C
/*
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* arch/arm/mach-ixp4xx/nas100d-setup.c
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*
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* NAS 100d board-setup
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*
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* based ixdp425-setup.c:
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* Copyright (C) 2003-2004 MontaVista Software, Inc.
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*
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* Author: Alessandro Zummo <a.zummo@towertech.it>
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* Author: Rod Whitby <rod@whitby.id.au>
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* Maintainers: http://www.nslu2-linux.org/
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*
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*/
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#include <linux/kernel.h>
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#include <linux/serial.h>
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#include <linux/serial_8250.h>
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#include <linux/leds.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/flash.h>
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static struct flash_platform_data nas100d_flash_data = {
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.map_name = "cfi_probe",
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.width = 2,
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};
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static struct resource nas100d_flash_resource = {
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device nas100d_flash = {
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.name = "IXP4XX-Flash",
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.id = 0,
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.dev.platform_data = &nas100d_flash_data,
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.num_resources = 1,
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.resource = &nas100d_flash_resource,
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};
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#ifdef CONFIG_LEDS_IXP4XX
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static struct resource nas100d_led_resources[] = {
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{
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.name = "wlan", /* green led */
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.start = 0,
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.end = 0,
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.flags = IXP4XX_GPIO_LOW,
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},
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{
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.name = "ready", /* blue power led (off is flashing!) */
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.start = 15,
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.end = 15,
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.flags = IXP4XX_GPIO_LOW,
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},
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{
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.name = "disk", /* yellow led */
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.start = 3,
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.end = 3,
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.flags = IXP4XX_GPIO_LOW,
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},
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};
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static struct platform_device nas100d_leds = {
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.name = "IXP4XX-GPIO-LED",
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.id = -1,
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.num_resources = ARRAY_SIZE(nas100d_led_resources),
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.resource = nas100d_led_resources,
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};
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#endif
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static struct ixp4xx_i2c_pins nas100d_i2c_gpio_pins = {
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.sda_pin = NAS100D_SDA_PIN,
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.scl_pin = NAS100D_SCL_PIN,
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};
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static struct platform_device nas100d_i2c_controller = {
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.name = "IXP4XX-I2C",
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.id = 0,
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.dev.platform_data = &nas100d_i2c_gpio_pins,
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.num_resources = 0,
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};
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static struct resource nas100d_uart_resources[] = {
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{
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.start = IXP4XX_UART1_BASE_PHYS,
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.end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
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.flags = IORESOURCE_MEM,
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},
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{
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.start = IXP4XX_UART2_BASE_PHYS,
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.end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
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.flags = IORESOURCE_MEM,
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}
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};
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static struct plat_serial8250_port nas100d_uart_data[] = {
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{
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.mapbase = IXP4XX_UART1_BASE_PHYS,
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.membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
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.irq = IRQ_IXP4XX_UART1,
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.flags = UPF_BOOT_AUTOCONF,
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.iotype = UPIO_MEM,
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.regshift = 2,
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.uartclk = IXP4XX_UART_XTAL,
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},
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{
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.mapbase = IXP4XX_UART2_BASE_PHYS,
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.membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
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.irq = IRQ_IXP4XX_UART2,
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.flags = UPF_BOOT_AUTOCONF,
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.iotype = UPIO_MEM,
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.regshift = 2,
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.uartclk = IXP4XX_UART_XTAL,
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},
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{ }
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};
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static struct platform_device nas100d_uart = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev.platform_data = nas100d_uart_data,
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.num_resources = 2,
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.resource = nas100d_uart_resources,
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};
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static struct platform_device *nas100d_devices[] __initdata = {
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&nas100d_i2c_controller,
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&nas100d_flash,
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#ifdef CONFIG_LEDS_IXP4XX
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&nas100d_leds,
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#endif
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};
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static void nas100d_power_off(void)
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{
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/* This causes the box to drop the power and go dead. */
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/* enable the pwr cntl gpio */
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gpio_line_config(NAS100D_PO_GPIO, IXP4XX_GPIO_OUT);
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/* do the deed */
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gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
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}
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static void __init nas100d_init(void)
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{
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ixp4xx_sys_init();
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/* gpio 14 and 15 are _not_ clocks */
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*IXP4XX_GPIO_GPCLKR = 0;
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nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
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nas100d_flash_resource.end =
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IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
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pm_power_off = nas100d_power_off;
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/*
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* This is only useful on a modified machine, but it is valuable
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* to have it first in order to see debug messages, and so that
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* it does *not* get removed if platform_add_devices fails!
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*/
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(void)platform_device_register(&nas100d_uart);
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platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
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}
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MACHINE_START(NAS100D, "Iomega NAS 100d")
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/* Maintainer: www.nslu2-linux.org */
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.phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
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.io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
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.boot_params = 0x00000100,
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.map_io = ixp4xx_map_io,
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.init_irq = ixp4xx_init_irq,
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.timer = &ixp4xx_timer,
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.init_machine = nas100d_init,
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MACHINE_END
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