Pileus Git - ~andy/linux/blob - arch/arm/mach-kirkwood/board-dt.c

   1 /*
   2  * Copyright 2012 (C), Jason Cooper <jason@lakedaemon.net>
   3  *
   4  * arch/arm/mach-kirkwood/board-dt.c
   5  *
   6  * Marvell DreamPlug Reference Board Setup
   7  *
   8  * This file is licensed under the terms of the GNU General Public
   9  * License version 2.  This program is licensed "as is" without any
  10  * warranty of any kind, whether express or implied.
  11  */
  12
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/mtd/partitions.h>
  17 #include <linux/ata_platform.h>
  18 #include <linux/mv643xx_eth.h>
  19 #include <linux/of.h>
  20 #include <linux/of_address.h>
  21 #include <linux/of_fdt.h>
  22 #include <linux/of_irq.h>
  23 #include <linux/of_platform.h>
  24 #include <linux/gpio.h>
  25 #include <linux/leds.h>
  26 #include <linux/mtd/physmap.h>
  27 #include <linux/spi/flash.h>
  28 #include <linux/spi/spi.h>
  29 #include <linux/spi/orion_spi.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <mach/kirkwood.h>
  33 #include <plat/mvsdio.h>
  34 #include "common.h"
  35 #include "mpp.h"
  36
  37 static struct of_device_id kirkwood_dt_match_table[] __initdata = {
  38         { .compatible = "simple-bus", },
  39         { }
  40 };
  41
  42 struct mtd_partition dreamplug_partitions[] = {
  43         {
  44                 .name   = "u-boot",
  45                 .size   = SZ_512K,
  46                 .offset = 0,
  47         },
  48         {
  49                 .name   = "u-boot env",
  50                 .size   = SZ_64K,
  51                 .offset = SZ_512K + SZ_512K,
  52         },
  53         {
  54                 .name   = "dtb",
  55                 .size   = SZ_64K,
  56                 .offset = SZ_512K + SZ_512K + SZ_512K,
  57         },
  58 };
  59
  60 static const struct flash_platform_data dreamplug_spi_slave_data = {
  61         .type           = "mx25l1606e",
  62         .name           = "spi_flash",
  63         .parts          = dreamplug_partitions,
  64         .nr_parts       = ARRAY_SIZE(dreamplug_partitions),
  65 };
  66
  67 static struct spi_board_info __initdata dreamplug_spi_slave_info[] = {
  68         {
  69                 .modalias       = "m25p80",
  70                 .platform_data  = &dreamplug_spi_slave_data,
  71                 .irq            = -1,
  72                 .max_speed_hz   = 50000000,
  73                 .bus_num        = 0,
  74                 .chip_select    = 0,
  75         },
  76 };
  77
  78 static struct mv643xx_eth_platform_data dreamplug_ge00_data = {
  79         .phy_addr       = MV643XX_ETH_PHY_ADDR(0),
  80 };
  81
  82 static struct mv643xx_eth_platform_data dreamplug_ge01_data = {
  83         .phy_addr       = MV643XX_ETH_PHY_ADDR(1),
  84 };
  85
  86 static struct mv_sata_platform_data dreamplug_sata_data = {
  87         .n_ports        = 1,
  88 };
  89
  90 static struct mvsdio_platform_data dreamplug_mvsdio_data = {
  91         /* unfortunately the CD signal has not been connected */
  92 };
  93
  94 static struct gpio_led dreamplug_led_pins[] = {
  95         {
  96                 .name                   = "dreamplug:blue:bluetooth",
  97                 .gpio                   = 47,
  98                 .active_low             = 1,
  99         },
 100         {
 101                 .name                   = "dreamplug:green:wifi",
 102                 .gpio                   = 48,
 103                 .active_low             = 1,
 104         },
 105         {
 106                 .name                   = "dreamplug:green:wifi_ap",
 107                 .gpio                   = 49,
 108                 .active_low             = 1,
 109         },
 110 };
 111
 112 static struct gpio_led_platform_data dreamplug_led_data = {
 113         .leds           = dreamplug_led_pins,
 114         .num_leds       = ARRAY_SIZE(dreamplug_led_pins),
 115 };
 116
 117 static struct platform_device dreamplug_leds = {
 118         .name   = "leds-gpio",
 119         .id     = -1,
 120         .dev    = {
 121                 .platform_data  = &dreamplug_led_data,
 122         }
 123 };
 124
 125 static unsigned int dreamplug_mpp_config[] __initdata = {
 126         MPP0_SPI_SCn,
 127         MPP1_SPI_MOSI,
 128         MPP2_SPI_SCK,
 129         MPP3_SPI_MISO,
 130         MPP47_GPIO,     /* Bluetooth LED */
 131         MPP48_GPIO,     /* Wifi LED */
 132         MPP49_GPIO,     /* Wifi AP LED */
 133         0
 134 };
 135
 136 static void __init dreamplug_init(void)
 137 {
 138         /*
 139          * Basic setup. Needs to be called early.
 140          */
 141         kirkwood_mpp_conf(dreamplug_mpp_config);
 142
 143         spi_register_board_info(dreamplug_spi_slave_info,
 144                                 ARRAY_SIZE(dreamplug_spi_slave_info));
 145         kirkwood_spi_init();
 146
 147         kirkwood_ehci_init();
 148         kirkwood_ge00_init(&dreamplug_ge00_data);
 149         kirkwood_ge01_init(&dreamplug_ge01_data);
 150         kirkwood_sata_init(&dreamplug_sata_data);
 151         kirkwood_sdio_init(&dreamplug_mvsdio_data);
 152
 153         platform_device_register(&dreamplug_leds);
 154 }
 155
 156 static void __init kirkwood_dt_init(void)
 157 {
 158         kirkwood_init();
 159
 160         if (of_machine_is_compatible("globalscale,dreamplug"))
 161                 dreamplug_init();
 162
 163         of_platform_populate(NULL, kirkwood_dt_match_table, NULL, NULL);
 164 }
 165
 166 static const char *kirkwood_dt_board_compat[] = {
 167         "globalscale,dreamplug",
 168         NULL
 169 };
 170
 171 DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
 172         /* Maintainer: Jason Cooper <jason@lakedaemon.net> */
 173         .map_io         = kirkwood_map_io,
 174         .init_early     = kirkwood_init_early,
 175         .init_irq       = kirkwood_init_irq,
 176         .timer          = &kirkwood_timer,
 177         .init_machine   = kirkwood_dt_init,
 178         .restart        = kirkwood_restart,
 179         .dt_compat      = kirkwood_dt_board_compat,
 180 MACHINE_END