arch/arm/mach-kirkwood/board-dnskw.c

   1 /*
   2  * Copyright 2012 (C), Jamie Lentin <jm@lentin.co.uk>
   3  *
   4  * arch/arm/mach-kirkwood/board-dnskw.c
   5  *
   6  * D-link DNS-320 & DNS-325 NAS Init for drivers not converted to
   7  * flattened device tree yet.
   8  *
   9  * This file is licensed under the terms of the GNU General Public
  10  * License version 2.  This program is licensed "as is" without any
  11  * warranty of any kind, whether express or implied.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/i2c.h>
  18 #include <linux/ata_platform.h>
  19 #include <linux/mv643xx_eth.h>
  20 #include <linux/of.h>
  21 #include <linux/gpio.h>
  22 #include <linux/input.h>
  23 #include <linux/gpio_keys.h>
  24 #include <linux/gpio-fan.h>
  25 #include <linux/leds.h>
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29 #include <mach/kirkwood.h>
  30 #include <mach/bridge-regs.h>
  31 #include "common.h"
  32 #include "mpp.h"
  33
  34 static struct mv643xx_eth_platform_data dnskw_ge00_data = {
  35         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
  36 };
  37
  38 static struct mv_sata_platform_data dnskw_sata_data = {
  39         .n_ports        = 2,
  40 };
  41
  42 static unsigned int dnskw_mpp_config[] __initdata = {
  43         MPP13_UART1_TXD,        /* Custom ... */
  44         MPP14_UART1_RXD,        /* ... Controller (DNS-320 only) */
  45         MPP20_SATA1_ACTn,       /* LED: White Right HDD */
  46         MPP21_SATA0_ACTn,       /* LED: White Left HDD */
  47         MPP24_GPIO,
  48         MPP25_GPIO,
  49         MPP26_GPIO,     /* LED: Power */
  50         MPP27_GPIO,     /* LED: Red Right HDD */
  51         MPP28_GPIO,     /* LED: Red Left HDD */
  52         MPP29_GPIO,     /* LED: Red USB (DNS-325 only) */
  53         MPP30_GPIO,
  54         MPP31_GPIO,
  55         MPP32_GPIO,
  56         MPP33_GPO,
  57         MPP34_GPIO,     /* Button: Front power */
  58         MPP35_GPIO,     /* LED: Red USB (DNS-320 only) */
  59         MPP36_GPIO,     /* Power: Turn off board */
  60         MPP37_GPIO,     /* Power: Turn back on after power failure */
  61         MPP38_GPIO,
  62         MPP39_GPIO,     /* Power: SATA0 */
  63         MPP40_GPIO,     /* Power: SATA1 */
  64         MPP41_GPIO,     /* SATA0 present */
  65         MPP42_GPIO,     /* SATA1 present */
  66         MPP43_GPIO,     /* LED: White USB */
  67         MPP44_GPIO,     /* Fan: Tachometer Pin */
  68         MPP45_GPIO,     /* Fan: high speed */
  69         MPP46_GPIO,     /* Fan: low speed */
  70         MPP47_GPIO,     /* Button: Back unmount */
  71         MPP48_GPIO,     /* Button: Back reset */
  72         MPP49_GPIO,     /* Temp Alarm (DNS-325) Pin of U5 (DNS-320) */
  73         0
  74 };
  75
  76 static struct gpio_led dns325_led_pins[] = {
  77         {
  78                 .name   = "dns325:white:power",
  79                 .gpio   = 26,
  80                 .active_low = 1,
  81                 .default_trigger = "default-on",
  82         },
  83         {
  84                 .name   = "dns325:white:usb",
  85                 .gpio   = 43,
  86                 .active_low = 1,
  87         },
  88         {
  89                 .name   = "dns325:red:l_hdd",
  90                 .gpio   = 28,
  91                 .active_low = 1,
  92         },
  93         {
  94                 .name   = "dns325:red:r_hdd",
  95                 .gpio   = 27,
  96                 .active_low = 1,
  97         },
  98         {
  99                 .name   = "dns325:red:usb",
 100                 .gpio   = 29,
 101                 .active_low = 1,
 102         },
 103 };
 104
 105 static struct gpio_led_platform_data dns325_led_data = {
 106         .num_leds       = ARRAY_SIZE(dns325_led_pins),
 107         .leds           = dns325_led_pins,
 108 };
 109
 110 static struct platform_device dns325_led_device = {
 111         .name           = "leds-gpio",
 112         .id             = -1,
 113         .dev            = {
 114                 .platform_data  = &dns325_led_data,
 115         },
 116 };
 117
 118 static struct gpio_led dns320_led_pins[] = {
 119         {
 120                 .name   = "dns320:blue:power",
 121                 .gpio   = 26,
 122                 .active_low = 1,
 123                 .default_trigger = "default-on",
 124         },
 125         {
 126                 .name   = "dns320:blue:usb",
 127                 .gpio   = 43,
 128                 .active_low = 1,
 129         },
 130         {
 131                 .name   = "dns320:orange:l_hdd",
 132                 .gpio   = 28,
 133                 .active_low = 1,
 134         },
 135         {
 136                 .name   = "dns320:orange:r_hdd",
 137                 .gpio   = 27,
 138                 .active_low = 1,
 139         },
 140         {
 141                 .name   = "dns320:orange:usb",
 142                 .gpio   = 35,
 143                 .active_low = 1,
 144         },
 145 };
 146
 147 static struct gpio_led_platform_data dns320_led_data = {
 148         .num_leds       = ARRAY_SIZE(dns320_led_pins),
 149         .leds           = dns320_led_pins,
 150 };
 151
 152 static struct platform_device dns320_led_device = {
 153         .name           = "leds-gpio",
 154         .id             = -1,
 155         .dev            = {
 156                 .platform_data  = &dns320_led_data,
 157         },
 158 };
 159
 160 static struct i2c_board_info dns325_i2c_board_info[] __initdata = {
 161         {
 162                 I2C_BOARD_INFO("lm75", 0x48),
 163         },
 164         /* Something at 0x0c also */
 165 };
 166
 167 static struct gpio_keys_button dnskw_button_pins[] = {
 168         {
 169                 .code           = KEY_POWER,
 170                 .gpio           = 34,
 171                 .desc           = "Power button",
 172                 .active_low     = 1,
 173         },
 174         {
 175                 .code           = KEY_EJECTCD,
 176                 .gpio           = 47,
 177                 .desc           = "USB unmount button",
 178                 .active_low     = 1,
 179         },
 180         {
 181                 .code           = KEY_RESTART,
 182                 .gpio           = 48,
 183                 .desc           = "Reset button",
 184                 .active_low     = 1,
 185         },
 186 };
 187
 188 static struct gpio_keys_platform_data dnskw_button_data = {
 189         .buttons        = dnskw_button_pins,
 190         .nbuttons       = ARRAY_SIZE(dnskw_button_pins),
 191 };
 192
 193 static struct platform_device dnskw_button_device = {
 194         .name           = "gpio-keys",
 195         .id             = -1,
 196         .num_resources  = 0,
 197         .dev            = {
 198                 .platform_data  = &dnskw_button_data,
 199         }
 200 };
 201
 202 /* Fan: ADDA AD045HB-G73 40mm 6000rpm@5v */
 203 static struct gpio_fan_speed dnskw_fan_speed[] = {
 204         {    0,  0 },
 205         { 3000,  1 },
 206         { 6000,  2 },
 207 };
 208 static unsigned dnskw_fan_pins[] = {46, 45};
 209
 210 static struct gpio_fan_platform_data dnskw_fan_data = {
 211         .num_ctrl       = ARRAY_SIZE(dnskw_fan_pins),
 212         .ctrl           = dnskw_fan_pins,
 213         .num_speed      = ARRAY_SIZE(dnskw_fan_speed),
 214         .speed          = dnskw_fan_speed,
 215 };
 216
 217 static struct platform_device dnskw_fan_device = {
 218         .name   = "gpio-fan",
 219         .id     = -1,
 220         .dev    = {
 221                 .platform_data  = &dnskw_fan_data,
 222         },
 223 };
 224
 225 static void dnskw_power_off(void)
 226 {
 227         gpio_set_value(36, 1);
 228 }
 229
 230 /* Register any GPIO for output and set the value */
 231 static void __init dnskw_gpio_register(unsigned gpio, char *name, int def)
 232 {
 233         if (gpio_request(gpio, name) == 0 &&
 234             gpio_direction_output(gpio, 0) == 0) {
 235                 gpio_set_value(gpio, def);
 236                 if (gpio_export(gpio, 0) != 0)
 237                         pr_err("dnskw: Failed to export GPIO %s\n", name);
 238         } else
 239                 pr_err("dnskw: Failed to register %s\n", name);
 240 }
 241
 242 void __init dnskw_init(void)
 243 {
 244         kirkwood_mpp_conf(dnskw_mpp_config);
 245
 246         kirkwood_ehci_init();
 247         kirkwood_ge00_init(&dnskw_ge00_data);
 248         kirkwood_sata_init(&dnskw_sata_data);
 249         kirkwood_i2c_init();
 250
 251         platform_device_register(&dnskw_button_device);
 252         platform_device_register(&dnskw_fan_device);
 253
 254         if (of_machine_is_compatible("dlink,dns-325")) {
 255                 i2c_register_board_info(0, dns325_i2c_board_info,
 256                                         ARRAY_SIZE(dns325_i2c_board_info));
 257                 platform_device_register(&dns325_led_device);
 258
 259         } else if (of_machine_is_compatible("dlink,dns-320"))
 260                 platform_device_register(&dns320_led_device);
 261
 262         /* Register power-off GPIO. */
 263         if (gpio_request(36, "dnskw:power:off") == 0
 264             && gpio_direction_output(36, 0) == 0)
 265                 pm_power_off = dnskw_power_off;
 266         else
 267                 pr_err("dnskw: failed to configure power-off GPIO\n");
 268
 269         /* Ensure power is supplied to both HDDs */
 270         dnskw_gpio_register(39, "dnskw:power:sata0", 1);
 271         dnskw_gpio_register(40, "dnskw:power:sata1", 1);
 272
 273         /* Set NAS to turn back on after a power failure */
 274         dnskw_gpio_register(37, "dnskw:power:recover", 1);
 275 }