176 lines
4.4 KiB
C
176 lines
4.4 KiB
C
![]() |
/*
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* DSM-G600 board-setup
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*
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* Copyright (C) 2006 Tower Technologies
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* Author: Alessandro Zummo <a.zummo@towertech.it>
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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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* Maintainers: http://www.nslu2-linux.org/
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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 <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 dsmg600_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 dsmg600_flash_resource = {
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device dsmg600_flash = {
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.name = "IXP4XX-Flash",
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.id = 0,
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.dev.platform_data = &dsmg600_flash_data,
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.num_resources = 1,
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.resource = &dsmg600_flash_resource,
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};
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static struct ixp4xx_i2c_pins dsmg600_i2c_gpio_pins = {
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.sda_pin = DSMG600_SDA_PIN,
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.scl_pin = DSMG600_SCL_PIN,
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};
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static struct platform_device dsmg600_i2c_controller = {
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.name = "IXP4XX-I2C",
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.id = 0,
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.dev.platform_data = &dsmg600_i2c_gpio_pins,
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};
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#ifdef CONFIG_LEDS_CLASS
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static struct resource dsmg600_led_resources[] = {
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{
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.name = "power",
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.start = DSMG600_LED_PWR_GPIO,
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.end = DSMG600_LED_PWR_GPIO,
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.flags = IXP4XX_GPIO_HIGH,
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},
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{
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.name = "wlan",
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.start = DSMG600_LED_WLAN_GPIO,
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.end = DSMG600_LED_WLAN_GPIO,
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.flags = IXP4XX_GPIO_LOW,
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},
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};
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static struct platform_device dsmg600_leds = {
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.name = "IXP4XX-GPIO-LED",
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.id = -1,
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.num_resources = ARRAY_SIZE(dsmg600_led_resources),
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.resource = dsmg600_led_resources,
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};
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#endif
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static struct resource dsmg600_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 dsmg600_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 dsmg600_uart = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev.platform_data = dsmg600_uart_data,
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.num_resources = ARRAY_SIZE(dsmg600_uart_resources),
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.resource = dsmg600_uart_resources,
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};
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static struct platform_device *dsmg600_devices[] __initdata = {
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&dsmg600_i2c_controller,
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&dsmg600_flash,
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};
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static void dsmg600_power_off(void)
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{
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/* enable the pwr cntl gpio */
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gpio_line_config(DSMG600_PO_GPIO, IXP4XX_GPIO_OUT);
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/* poweroff */
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gpio_line_set(DSMG600_PO_GPIO, IXP4XX_GPIO_HIGH);
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}
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static void __init dsmg600_init(void)
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{
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ixp4xx_sys_init();
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/* Make sure that GPIO14 and GPIO15 are not used as clocks */
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*IXP4XX_GPIO_GPCLKR = 0;
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dsmg600_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
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dsmg600_flash_resource.end =
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IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
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pm_power_off = dsmg600_power_off;
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/* The UART is required on the DSM-G600 (Redboot cannot use the
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* NIC) -- do it here so that it does *not* get removed if
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* platform_add_devices fails!
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*/
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(void)platform_device_register(&dsmg600_uart);
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platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices));
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#ifdef CONFIG_LEDS_CLASS
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/* We don't care whether or not this works. */
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(void)platform_device_register(&dsmg600_leds);
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#endif
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}
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static void __init dsmg600_fixup(struct machine_desc *desc,
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struct tag *tags, char **cmdline, struct meminfo *mi)
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{
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/* The xtal on this machine is non-standard. */
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ixp4xx_timer_freq = DSMG600_FREQ;
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}
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MACHINE_START(DSMG600, "D-Link DSM-G600 RevA")
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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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.fixup = dsmg600_fixup,
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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 = dsmg600_init,
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MACHINE_END
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