arch/arm/mach-ixp4xx/nas100d-setup.c

   1 /*
   2  * arch/arm/mach-ixp4xx/nas100d-setup.c
   3  *
   4  * NAS 100d board-setup
   5  *
   6  * based ixdp425-setup.c:
   7  *      Copyright (C) 2003-2004 MontaVista Software, Inc.
   8  *
   9  * Author: Alessandro Zummo <a.zummo@towertech.it>
  10  * Author: Rod Whitby <rod@whitby.id.au>
  11  * Maintainers: http://www.nslu2-linux.org/
  12  *
  13  */
  14
  15 #include <linux/if_ether.h>
  16 #include <linux/kernel.h>
  17 #include <linux/serial.h>
  18 #include <linux/serial_8250.h>
  19 #include <linux/leds.h>
  20 #include <linux/i2c.h>
  21 #include <linux/i2c-gpio.h>
  22
  23 #include <asm/mach-types.h>
  24 #include <asm/mach/arch.h>
  25 #include <asm/mach/flash.h>
  26 #include <asm/io.h>
  27
  28 static struct flash_platform_data nas100d_flash_data = {
  29         .map_name               = "cfi_probe",
  30         .width                  = 2,
  31 };
  32
  33 static struct resource nas100d_flash_resource = {
  34         .flags                  = IORESOURCE_MEM,
  35 };
  36
  37 static struct platform_device nas100d_flash = {
  38         .name                   = "IXP4XX-Flash",
  39         .id                     = 0,
  40         .dev.platform_data      = &nas100d_flash_data,
  41         .num_resources          = 1,
  42         .resource               = &nas100d_flash_resource,
  43 };
  44
  45 static struct i2c_board_info __initdata nas100d_i2c_board_info [] = {
  46         {
  47                 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
  48         },
  49 };
  50
  51 static struct gpio_led nas100d_led_pins[] = {
  52         {
  53                 .name           = "wlan",   /* green led */
  54                 .gpio           = NAS100D_LED_WLAN_GPIO,
  55                 .active_low     = true,
  56         },
  57         {
  58                 .name           = "power",  /* blue power led (off=flashing) */
  59                 .gpio           = NAS100D_LED_PWR_GPIO,
  60                 .active_low     = true,
  61         },
  62         {
  63                 .name           = "disk",   /* yellow led */
  64                 .gpio           = NAS100D_LED_DISK_GPIO,
  65                 .active_low     = true,
  66         },
  67 };
  68
  69 static struct gpio_led_platform_data nas100d_led_data = {
  70         .num_leds               = ARRAY_SIZE(nas100d_led_pins),
  71         .leds                   = nas100d_led_pins,
  72 };
  73
  74 static struct platform_device nas100d_leds = {
  75         .name                   = "leds-gpio",
  76         .id                     = -1,
  77         .dev.platform_data      = &nas100d_led_data,
  78 };
  79
  80 static struct i2c_gpio_platform_data nas100d_i2c_gpio_data = {
  81         .sda_pin                = NAS100D_SDA_PIN,
  82         .scl_pin                = NAS100D_SCL_PIN,
  83 };
  84
  85 static struct platform_device nas100d_i2c_gpio = {
  86         .name                   = "i2c-gpio",
  87         .id                     = 0,
  88         .dev     = {
  89                 .platform_data  = &nas100d_i2c_gpio_data,
  90         },
  91 };
  92
  93 static struct resource nas100d_uart_resources[] = {
  94         {
  95                 .start          = IXP4XX_UART1_BASE_PHYS,
  96                 .end            = IXP4XX_UART1_BASE_PHYS + 0x0fff,
  97                 .flags          = IORESOURCE_MEM,
  98         },
  99         {
 100                 .start          = IXP4XX_UART2_BASE_PHYS,
 101                 .end            = IXP4XX_UART2_BASE_PHYS + 0x0fff,
 102                 .flags          = IORESOURCE_MEM,
 103         }
 104 };
 105
 106 static struct plat_serial8250_port nas100d_uart_data[] = {
 107         {
 108                 .mapbase        = IXP4XX_UART1_BASE_PHYS,
 109                 .membase        = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
 110                 .irq            = IRQ_IXP4XX_UART1,
 111                 .flags          = UPF_BOOT_AUTOCONF,
 112                 .iotype         = UPIO_MEM,
 113                 .regshift       = 2,
 114                 .uartclk        = IXP4XX_UART_XTAL,
 115         },
 116         {
 117                 .mapbase        = IXP4XX_UART2_BASE_PHYS,
 118                 .membase        = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
 119                 .irq            = IRQ_IXP4XX_UART2,
 120                 .flags          = UPF_BOOT_AUTOCONF,
 121                 .iotype         = UPIO_MEM,
 122                 .regshift       = 2,
 123                 .uartclk        = IXP4XX_UART_XTAL,
 124         },
 125         { }
 126 };
 127
 128 static struct platform_device nas100d_uart = {
 129         .name                   = "serial8250",
 130         .id                     = PLAT8250_DEV_PLATFORM,
 131         .dev.platform_data      = nas100d_uart_data,
 132         .num_resources          = 2,
 133         .resource               = nas100d_uart_resources,
 134 };
 135
 136 /* Built-in 10/100 Ethernet MAC interfaces */
 137 static struct eth_plat_info nas100d_plat_eth[] = {
 138         {
 139                 .phy            = 0,
 140                 .rxq            = 3,
 141                 .txreadyq       = 20,
 142         }
 143 };
 144
 145 static struct platform_device nas100d_eth[] = {
 146         {
 147                 .name                   = "ixp4xx_eth",
 148                 .id                     = IXP4XX_ETH_NPEB,
 149                 .dev.platform_data      = nas100d_plat_eth,
 150         }
 151 };
 152
 153 static struct platform_device *nas100d_devices[] __initdata = {
 154         &nas100d_i2c_gpio,
 155         &nas100d_flash,
 156         &nas100d_leds,
 157         &nas100d_eth[0],
 158 };
 159
 160 static void nas100d_power_off(void)
 161 {
 162         /* This causes the box to drop the power and go dead. */
 163
 164         /* enable the pwr cntl gpio */
 165         gpio_line_config(NAS100D_PO_GPIO, IXP4XX_GPIO_OUT);
 166
 167         /* do the deed */
 168         gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
 169 }
 170
 171 static void __init nas100d_init(void)
 172 {
 173         DECLARE_MAC_BUF(mac_buf);
 174         uint8_t __iomem *f;
 175         int i;
 176
 177         ixp4xx_sys_init();
 178
 179         /* gpio 14 and 15 are _not_ clocks */
 180         *IXP4XX_GPIO_GPCLKR = 0;
 181
 182         nas100d_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
 183         nas100d_flash_resource.end =
 184                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
 185
 186         pm_power_off = nas100d_power_off;
 187
 188         i2c_register_board_info(0, nas100d_i2c_board_info,
 189                                 ARRAY_SIZE(nas100d_i2c_board_info));
 190
 191         /*
 192          * This is only useful on a modified machine, but it is valuable
 193          * to have it first in order to see debug messages, and so that
 194          * it does *not* get removed if platform_add_devices fails!
 195          */
 196         (void)platform_device_register(&nas100d_uart);
 197
 198         platform_add_devices(nas100d_devices, ARRAY_SIZE(nas100d_devices));
 199
 200         /*
 201          * Map in a portion of the flash and read the MAC address.
 202          * Since it is stored in BE in the flash itself, we need to
 203          * byteswap it if we're in LE mode.
 204          */
 205         f = ioremap(IXP4XX_EXP_BUS_BASE(0), 0x1000000);
 206         if (f) {
 207                 for (i = 0; i < 6; i++)
 208 #ifdef __ARMEB__
 209                         nas100d_plat_eth[0].hwaddr[i] = readb(f + 0xFC0FD8 + i);
 210 #else
 211                         nas100d_plat_eth[0].hwaddr[i] = readb(f + 0xFC0FD8 + (i^3));
 212 #endif
 213                 iounmap(f);
 214         }
 215         printk(KERN_INFO "NAS100D: Using MAC address %s for port 0\n",
 216                print_mac(mac_buf, nas100d_plat_eth[0].hwaddr));
 217
 218 }
 219
 220 MACHINE_START(NAS100D, "Iomega NAS 100d")
 221         /* Maintainer: www.nslu2-linux.org */
 222         .phys_io        = IXP4XX_PERIPHERAL_BASE_PHYS,
 223         .io_pg_offst    = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
 224         .boot_params    = 0x00000100,
 225         .map_io         = ixp4xx_map_io,
 226         .init_irq       = ixp4xx_init_irq,
 227         .timer          = &ixp4xx_timer,
 228         .init_machine   = nas100d_init,
 229 MACHINE_END