projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 28bd3a0d MLJ |
1 | /* |
| 2 | * DSM-G600 board-setup | |
| 3 | * | |
| 4 | * Copyright (C) 2006 Tower Technologies | |
| 5 | * Author: Alessandro Zummo <a.zummo@towertech.it> | |
| 6 | * | |
| 7 | * based ixdp425-setup.c: | |
| 8 | * Copyright (C) 2003-2004 MontaVista Software, Inc. | |
| 9 | * | |
| 10 | * Author: Alessandro Zummo <a.zummo@towertech.it> | |
| 11 | * Maintainers: http://www.nslu2-linux.org/ | |
| 12 | */ | |
| 13 | ||
| 14 | #include <linux/kernel.h> | |
| 15 | #include <linux/serial.h> | |
| 16 | #include <linux/serial_8250.h> | |
| 17 | ||
| 18 | #include <asm/mach-types.h> | |
| 19 | #include <asm/mach/arch.h> | |
| 20 | #include <asm/mach/flash.h> | |
| 21 | ||
| 22 | static struct flash_platform_data dsmg600_flash_data = { | |
| 23 | .map_name = "cfi_probe", | |
| 24 | .width = 2, | |
| 25 | }; | |
| 26 | ||
| 27 | static struct resource dsmg600_flash_resource = { | |
| 28 | .flags = IORESOURCE_MEM, | |
| 29 | }; | |
| 30 | ||
| 31 | static struct platform_device dsmg600_flash = { | |
| 32 | .name = "IXP4XX-Flash", | |
| 33 | .id = 0, | |
| 34 | .dev.platform_data = &dsmg600_flash_data, | |
| 35 | .num_resources = 1, | |
| 36 | .resource = &dsmg600_flash_resource, | |
| 37 | }; | |
| 38 | ||
| 39 | static struct ixp4xx_i2c_pins dsmg600_i2c_gpio_pins = { | |
| 40 | .sda_pin = DSMG600_SDA_PIN, | |
| 41 | .scl_pin = DSMG600_SCL_PIN, | |
| 42 | }; | |
| 43 | ||
| 44 | static struct platform_device dsmg600_i2c_controller = { | |
| 45 | .name = "IXP4XX-I2C", | |
| 46 | .id = 0, | |
| 47 | .dev.platform_data = &dsmg600_i2c_gpio_pins, | |
| 48 | }; | |
| 49 | ||
| 50 | #ifdef CONFIG_LEDS_CLASS | |
| 51 | static struct resource dsmg600_led_resources[] = { | |
| 52 | { | |
| 53 | .name = "power", | |
| 54 | .start = DSMG600_LED_PWR_GPIO, | |
| 55 | .end = DSMG600_LED_PWR_GPIO, | |
| 56 | .flags = IXP4XX_GPIO_HIGH, | |
| 57 | }, | |
| 58 | { | |
| 59 | .name = "wlan", | |
| 60 | .start = DSMG600_LED_WLAN_GPIO, | |
| 61 | .end = DSMG600_LED_WLAN_GPIO, | |
| 62 | .flags = IXP4XX_GPIO_LOW, | |
| 63 | }, | |
| 64 | }; | |
| 65 | ||
| 66 | static struct platform_device dsmg600_leds = { | |
| 67 | .name = "IXP4XX-GPIO-LED", | |
| 68 | .id = -1, | |
| 69 | .num_resources = ARRAY_SIZE(dsmg600_led_resources), | |
| 70 | .resource = dsmg600_led_resources, | |
| 71 | }; | |
| 72 | #endif | |
| 73 | ||
| 74 | static struct resource dsmg600_uart_resources[] = { | |
| 75 | { | |
| 76 | .start = IXP4XX_UART1_BASE_PHYS, | |
| 77 | .end = IXP4XX_UART1_BASE_PHYS + 0x0fff, | |
| 78 | .flags = IORESOURCE_MEM, | |
| 79 | }, | |
| 80 | { | |
| 81 | .start = IXP4XX_UART2_BASE_PHYS, | |
| 82 | .end = IXP4XX_UART2_BASE_PHYS + 0x0fff, | |
| 83 | .flags = IORESOURCE_MEM, | |
| 84 | } | |
| 85 | }; | |
| 86 | ||
| 87 | static struct plat_serial8250_port dsmg600_uart_data[] = { | |
| 88 | { | |
| 89 | .mapbase = IXP4XX_UART1_BASE_PHYS, | |
| 90 | .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET, | |
| 91 | .irq = IRQ_IXP4XX_UART1, | |
| 92 | .flags = UPF_BOOT_AUTOCONF, | |
| 93 | .iotype = UPIO_MEM, | |
| 94 | .regshift = 2, | |
| 95 | .uartclk = IXP4XX_UART_XTAL, | |
| 96 | }, | |
| 97 | { | |
| 98 | .mapbase = IXP4XX_UART2_BASE_PHYS, | |
| 99 | .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET, | |
| 100 | .irq = IRQ_IXP4XX_UART2, | |
| 101 | .flags = UPF_BOOT_AUTOCONF, | |
| 102 | .iotype = UPIO_MEM, | |
| 103 | .regshift = 2, | |
| 104 | .uartclk = IXP4XX_UART_XTAL, | |
| 105 | }, | |
| 106 | { } | |
| 107 | }; | |
| 108 | ||
| 109 | static struct platform_device dsmg600_uart = { | |
| 110 | .name = "serial8250", | |
| 111 | .id = PLAT8250_DEV_PLATFORM, | |
| 112 | .dev.platform_data = dsmg600_uart_data, | |
| 113 | .num_resources = ARRAY_SIZE(dsmg600_uart_resources), | |
| 114 | .resource = dsmg600_uart_resources, | |
| 115 | }; | |
| 116 | ||
| 117 | static struct platform_device *dsmg600_devices[] __initdata = { | |
| 118 | &dsmg600_i2c_controller, | |
| 119 | &dsmg600_flash, | |
| 120 | }; | |
| 121 | ||
| 122 | static void dsmg600_power_off(void) | |
| 123 | { | |
| 124 | /* enable the pwr cntl gpio */ | |
| 125 | gpio_line_config(DSMG600_PO_GPIO, IXP4XX_GPIO_OUT); | |
| 126 | ||
| 127 | /* poweroff */ | |
| 128 | gpio_line_set(DSMG600_PO_GPIO, IXP4XX_GPIO_HIGH); | |
| 129 | } | |
| 130 | ||
| 131 | static void __init dsmg600_init(void) | |
| 132 | { | |
| 133 | ixp4xx_sys_init(); | |
| 134 | ||
| 135 | /* Make sure that GPIO14 and GPIO15 are not used as clocks */ | |
| 136 | *IXP4XX_GPIO_GPCLKR = 0; | |
| 137 | ||
| 138 | dsmg600_flash_resource.start = IXP4XX_EXP_BUS_BASE(0); | |
| 139 | dsmg600_flash_resource.end = | |
| 140 | IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1; | |
| 141 | ||
| 142 | pm_power_off = dsmg600_power_off; | |
| 143 | ||
| 144 | /* The UART is required on the DSM-G600 (Redboot cannot use the | |
| 145 | * NIC) -- do it here so that it does *not* get removed if | |
| 146 | * platform_add_devices fails! | |
| 147 | */ | |
| 148 | (void)platform_device_register(&dsmg600_uart); | |
| 149 | ||
| 150 | platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices)); | |
| 151 | ||
| 152 | #ifdef CONFIG_LEDS_CLASS | |
| 153 | /* We don't care whether or not this works. */ | |
| 154 | (void)platform_device_register(&dsmg600_leds); | |
| 155 | #endif | |
| 156 | } | |
| 157 | ||
| 158 | static void __init dsmg600_fixup(struct machine_desc *desc, | |
| 159 | struct tag *tags, char **cmdline, struct meminfo *mi) | |
| 160 | { | |
| 161 | /* The xtal on this machine is non-standard. */ | |
| 162 | ixp4xx_timer_freq = DSMG600_FREQ; | |
| 163 | } | |
| 164 | ||
| 165 | MACHINE_START(DSMG600, "D-Link DSM-G600 RevA") | |
| 166 | /* Maintainer: www.nslu2-linux.org */ | |
| 167 | .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS, | |
| 168 | .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC, | |
| 169 | .boot_params = 0x00000100, | |
| 170 | .fixup = dsmg600_fixup, | |
| 171 | .map_io = ixp4xx_map_io, | |
| 172 | .init_irq = ixp4xx_init_irq, | |
| 173 | .timer = &ixp4xx_timer, | |
| 174 | .init_machine = dsmg600_init, | |
| 175 | MACHINE_END |