/* * 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 <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 ixp4xx_i2c_pins dsmg600_i2c_gpio_pins = { .sda_pin = DSMG600_SDA_PIN, .scl_pin = DSMG600_SCL_PIN, }; static struct platform_device dsmg600_i2c_controller = { .name = "IXP4XX-I2C", .id = 0, .dev.platform_data = &dsmg600_i2c_gpio_pins, }; #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_controller, &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