root/arch/arm/mach-orion5x/net2big-setup.c

DEFINITIONS

1. net2big_sata_power_init
2. net2big_gpio_leds_init
3. net2big_power_off
4. net2big_init

   1 /*
   2  * arch/arm/mach-orion5x/net2big-setup.c
   3  *
   4  * LaCie 2Big Network NAS setup
   5  *
   6  * Copyright (C) 2009 Simon Guinot <sguinot@lacie.com>
   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/physmap.h>
  17 #include <linux/mv643xx_eth.h>
  18 #include <linux/leds.h>
  19 #include <linux/gpio_keys.h>
  20 #include <linux/input.h>
  21 #include <linux/i2c.h>
  22 #include <linux/ata_platform.h>
  23 #include <linux/gpio.h>
  24 #include <linux/delay.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27 #include <plat/orion-gpio.h>
  28 #include "common.h"
  29 #include "mpp.h"
  30 #include "orion5x.h"
  31 
  32 /*****************************************************************************
  33  * LaCie 2Big Network Info
  34  ****************************************************************************/
  35 
  36 /*
  37  * 512KB NOR flash Device bus boot chip select
  38  */
  39 
  40 #define NET2BIG_NOR_BOOT_BASE           0xfff80000
  41 #define NET2BIG_NOR_BOOT_SIZE           SZ_512K
  42 
  43 /*****************************************************************************
  44  * 512KB NOR Flash on Boot Device
  45  ****************************************************************************/
  46 
  47 /*
  48  * TODO: Check write support on flash MX29LV400CBTC-70G
  49  */
  50 
  51 static struct mtd_partition net2big_partitions[] = {
  52         {
  53                 .name           = "Full512kb",
  54                 .size           = MTDPART_SIZ_FULL,
  55                 .offset         = 0x00000000,
  56                 .mask_flags     = MTD_WRITEABLE,
  57         },
  58 };
  59 
  60 static struct physmap_flash_data net2big_nor_flash_data = {
  61         .width          = 1,
  62         .parts          = net2big_partitions,
  63         .nr_parts       = ARRAY_SIZE(net2big_partitions),
  64 };
  65 
  66 static struct resource net2big_nor_flash_resource = {
  67         .flags                  = IORESOURCE_MEM,
  68         .start                  = NET2BIG_NOR_BOOT_BASE,
  69         .end                    = NET2BIG_NOR_BOOT_BASE
  70                                         + NET2BIG_NOR_BOOT_SIZE - 1,
  71 };
  72 
  73 static struct platform_device net2big_nor_flash = {
  74         .name                   = "physmap-flash",
  75         .id                     = 0,
  76         .dev            = {
  77                 .platform_data  = &net2big_nor_flash_data,
  78         },
  79         .num_resources          = 1,
  80         .resource               = &net2big_nor_flash_resource,
  81 };
  82 
  83 /*****************************************************************************
  84  * Ethernet
  85  ****************************************************************************/
  86 
  87 static struct mv643xx_eth_platform_data net2big_eth_data = {
  88         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
  89 };
  90 
  91 /*****************************************************************************
  92  * I2C devices
  93  ****************************************************************************/
  94 
  95 /*
  96  * i2c addr | chip         | description
  97  * 0x32     | Ricoh 5C372b | RTC
  98  * 0x50     | HT24LC08     | eeprom (1kB)
  99  */
 100 static struct i2c_board_info __initdata net2big_i2c_devices[] = {
 101         {
 102                 I2C_BOARD_INFO("rs5c372b", 0x32),
 103         }, {
 104                 I2C_BOARD_INFO("24c08", 0x50),
 105         },
 106 };
 107 
 108 /*****************************************************************************
 109  * SATA
 110  ****************************************************************************/
 111 
 112 static struct mv_sata_platform_data net2big_sata_data = {
 113         .n_ports        = 2,
 114 };
 115 
 116 #define NET2BIG_GPIO_SATA_POWER_REQ     19
 117 #define NET2BIG_GPIO_SATA0_POWER        23
 118 #define NET2BIG_GPIO_SATA1_POWER        25
 119 
 120 static void __init net2big_sata_power_init(void)
 121 {
 122         int err;
 123 
 124         /* Configure GPIOs over MPP max number. */
 125         orion_gpio_set_valid(NET2BIG_GPIO_SATA0_POWER, 1);
 126         orion_gpio_set_valid(NET2BIG_GPIO_SATA1_POWER, 1);
 127 
 128         err = gpio_request(NET2BIG_GPIO_SATA0_POWER, "SATA0 power status");
 129         if (err == 0) {
 130                 err = gpio_direction_input(NET2BIG_GPIO_SATA0_POWER);
 131                 if (err)
 132                         gpio_free(NET2BIG_GPIO_SATA0_POWER);
 133         }
 134         if (err) {
 135                 pr_err("net2big: failed to setup SATA0 power GPIO\n");
 136                 return;
 137         }
 138 
 139         err = gpio_request(NET2BIG_GPIO_SATA1_POWER, "SATA1 power status");
 140         if (err == 0) {
 141                 err = gpio_direction_input(NET2BIG_GPIO_SATA1_POWER);
 142                 if (err)
 143                         gpio_free(NET2BIG_GPIO_SATA1_POWER);
 144         }
 145         if (err) {
 146                 pr_err("net2big: failed to setup SATA1 power GPIO\n");
 147                 goto err_free_1;
 148         }
 149 
 150         err = gpio_request(NET2BIG_GPIO_SATA_POWER_REQ, "SATA power request");
 151         if (err == 0) {
 152                 err = gpio_direction_output(NET2BIG_GPIO_SATA_POWER_REQ, 0);
 153                 if (err)
 154                         gpio_free(NET2BIG_GPIO_SATA_POWER_REQ);
 155         }
 156         if (err) {
 157                 pr_err("net2big: failed to setup SATA power request GPIO\n");
 158                 goto err_free_2;
 159         }
 160 
 161         if (gpio_get_value(NET2BIG_GPIO_SATA0_POWER) &&
 162                 gpio_get_value(NET2BIG_GPIO_SATA1_POWER)) {
 163                 return;
 164         }
 165 
 166         /*
 167          * SATA power up on both disk is done by pulling high the CPLD power
 168          * request line. The 300ms delay is related to the CPLD clock and is
 169          * needed to be sure that the CPLD has take into account the low line
 170          * status.
 171          */
 172         msleep(300);
 173         gpio_set_value(NET2BIG_GPIO_SATA_POWER_REQ, 1);
 174         pr_info("net2big: power up SATA hard disks\n");
 175 
 176         return;
 177 
 178 err_free_2:
 179         gpio_free(NET2BIG_GPIO_SATA1_POWER);
 180 err_free_1:
 181         gpio_free(NET2BIG_GPIO_SATA0_POWER);
 182 
 183         return;
 184 }
 185 
 186 /*****************************************************************************
 187  * GPIO LEDs
 188  ****************************************************************************/
 189 
 190 /*
 191  * The power front LEDs (blue and red) and SATA red LEDs are controlled via a
 192  * single GPIO line and are compatible with the leds-gpio driver.
 193  *
 194  * The SATA blue LEDs have some hardware blink capabilities which are detailed
 195  * in the following array:
 196  *
 197  * SATAx blue LED | SATAx activity | LED state
 198  *                |                |
 199  *       0        |       0        |  blink (rate 300ms)
 200  *       1        |       0        |  off
 201  *       ?        |       1        |  on
 202  *
 203  * Notes: The blue and the red front LED's can't be on at the same time.
 204  *        Blue LED have priority.
 205  */
 206 
 207 #define NET2BIG_GPIO_PWR_RED_LED        6
 208 #define NET2BIG_GPIO_PWR_BLUE_LED       16
 209 #define NET2BIG_GPIO_PWR_LED_BLINK_STOP 7
 210 
 211 #define NET2BIG_GPIO_SATA0_RED_LED      11
 212 #define NET2BIG_GPIO_SATA1_RED_LED      10
 213 
 214 #define NET2BIG_GPIO_SATA0_BLUE_LED     17
 215 #define NET2BIG_GPIO_SATA1_BLUE_LED     13
 216 
 217 static struct gpio_led net2big_leds[] = {
 218         {
 219                 .name = "net2big:red:power",
 220                 .gpio = NET2BIG_GPIO_PWR_RED_LED,
 221         },
 222         {
 223                 .name = "net2big:blue:power",
 224                 .gpio = NET2BIG_GPIO_PWR_BLUE_LED,
 225         },
 226         {
 227                 .name = "net2big:red:sata0",
 228                 .gpio = NET2BIG_GPIO_SATA0_RED_LED,
 229         },
 230         {
 231                 .name = "net2big:red:sata1",
 232                 .gpio = NET2BIG_GPIO_SATA1_RED_LED,
 233         },
 234 };
 235 
 236 static struct gpio_led_platform_data net2big_led_data = {
 237         .num_leds = ARRAY_SIZE(net2big_leds),
 238         .leds = net2big_leds,
 239 };
 240 
 241 static struct platform_device net2big_gpio_leds = {
 242         .name           = "leds-gpio",
 243         .id             = -1,
 244         .dev            = {
 245                 .platform_data  = &net2big_led_data,
 246         },
 247 };
 248 
 249 static void __init net2big_gpio_leds_init(void)
 250 {
 251         int err;
 252 
 253         /* Stop initial CPLD slow red/blue blinking on power LED. */
 254         err = gpio_request(NET2BIG_GPIO_PWR_LED_BLINK_STOP,
 255                            "Power LED blink stop");
 256         if (err == 0) {
 257                 err = gpio_direction_output(NET2BIG_GPIO_PWR_LED_BLINK_STOP, 1);
 258                 if (err)
 259                         gpio_free(NET2BIG_GPIO_PWR_LED_BLINK_STOP);
 260         }
 261         if (err)
 262                 pr_err("net2big: failed to setup power LED blink GPIO\n");
 263 
 264         /*
 265          * Configure SATA0 and SATA1 blue LEDs to blink in relation with the
 266          * hard disk activity.
 267          */
 268         err = gpio_request(NET2BIG_GPIO_SATA0_BLUE_LED,
 269                            "SATA0 blue LED control");
 270         if (err == 0) {
 271                 err = gpio_direction_output(NET2BIG_GPIO_SATA0_BLUE_LED, 1);
 272                 if (err)
 273                         gpio_free(NET2BIG_GPIO_SATA0_BLUE_LED);
 274         }
 275         if (err)
 276                 pr_err("net2big: failed to setup SATA0 blue LED GPIO\n");
 277 
 278         err = gpio_request(NET2BIG_GPIO_SATA1_BLUE_LED,
 279                            "SATA1 blue LED control");
 280         if (err == 0) {
 281                 err = gpio_direction_output(NET2BIG_GPIO_SATA1_BLUE_LED, 1);
 282                 if (err)
 283                         gpio_free(NET2BIG_GPIO_SATA1_BLUE_LED);
 284         }
 285         if (err)
 286                 pr_err("net2big: failed to setup SATA1 blue LED GPIO\n");
 287 
 288         platform_device_register(&net2big_gpio_leds);
 289 }
 290 
 291 /****************************************************************************
 292  * GPIO keys
 293  ****************************************************************************/
 294 
 295 #define NET2BIG_GPIO_PUSH_BUTTON        18
 296 #define NET2BIG_GPIO_POWER_SWITCH_ON    8
 297 #define NET2BIG_GPIO_POWER_SWITCH_OFF   9
 298 
 299 #define NET2BIG_SWITCH_POWER_ON         0x1
 300 #define NET2BIG_SWITCH_POWER_OFF        0x2
 301 
 302 static struct gpio_keys_button net2big_buttons[] = {
 303         {
 304                 .type           = EV_SW,
 305                 .code           = NET2BIG_SWITCH_POWER_OFF,
 306                 .gpio           = NET2BIG_GPIO_POWER_SWITCH_OFF,
 307                 .desc           = "Power rocker switch (auto|off)",
 308                 .active_low     = 0,
 309         },
 310         {
 311                 .type           = EV_SW,
 312                 .code           = NET2BIG_SWITCH_POWER_ON,
 313                 .gpio           = NET2BIG_GPIO_POWER_SWITCH_ON,
 314                 .desc           = "Power rocker switch (on|auto)",
 315                 .active_low     = 0,
 316         },
 317         {
 318                 .type           = EV_KEY,
 319                 .code           = KEY_POWER,
 320                 .gpio           = NET2BIG_GPIO_PUSH_BUTTON,
 321                 .desc           = "Front Push Button",
 322                 .active_low     = 0,
 323         },
 324 };
 325 
 326 static struct gpio_keys_platform_data net2big_button_data = {
 327         .buttons        = net2big_buttons,
 328         .nbuttons       = ARRAY_SIZE(net2big_buttons),
 329 };
 330 
 331 static struct platform_device net2big_gpio_buttons = {
 332         .name           = "gpio-keys",
 333         .id             = -1,
 334         .dev            = {
 335                 .platform_data  = &net2big_button_data,
 336         },
 337 };
 338 
 339 /*****************************************************************************
 340  * General Setup
 341  ****************************************************************************/
 342 
 343 static unsigned int net2big_mpp_modes[] __initdata = {
 344         MPP0_GPIO,      /* Raid mode (bit 0) */
 345         MPP1_GPIO,      /* USB port 2 fuse (0 = Fail, 1 = Ok) */
 346         MPP2_GPIO,      /* Raid mode (bit 1) */
 347         MPP3_GPIO,      /* Board ID (bit 0) */
 348         MPP4_GPIO,      /* Fan activity (0 = Off, 1 = On) */
 349         MPP5_GPIO,      /* Fan fail detection */
 350         MPP6_GPIO,      /* Red front LED (0 = Off, 1 = On) */
 351         MPP7_GPIO,      /* Disable initial blinking on front LED */
 352         MPP8_GPIO,      /* Rear power switch (on|auto) */
 353         MPP9_GPIO,      /* Rear power switch (auto|off) */
 354         MPP10_GPIO,     /* SATA 1 red LED (0 = Off, 1 = On) */
 355         MPP11_GPIO,     /* SATA 0 red LED (0 = Off, 1 = On) */
 356         MPP12_GPIO,     /* Board ID (bit 1) */
 357         MPP13_GPIO,     /* SATA 1 blue LED blink control */
 358         MPP14_SATA_LED,
 359         MPP15_SATA_LED,
 360         MPP16_GPIO,     /* Blue front LED control */
 361         MPP17_GPIO,     /* SATA 0 blue LED blink control */
 362         MPP18_GPIO,     /* Front button (0 = Released, 1 = Pushed ) */
 363         MPP19_GPIO,     /* SATA{0,1} power On/Off request */
 364         0,
 365         /* 22: USB port 1 fuse (0 = Fail, 1 = Ok) */
 366         /* 23: SATA 0 power status */
 367         /* 24: Board power off */
 368         /* 25: SATA 1 power status */
 369 };
 370 
 371 #define NET2BIG_GPIO_POWER_OFF          24
 372 
 373 static void net2big_power_off(void)
 374 {
 375         gpio_set_value(NET2BIG_GPIO_POWER_OFF, 1);
 376 }
 377 
 378 static void __init net2big_init(void)
 379 {
 380         /*
 381          * Setup basic Orion functions. Need to be called early.
 382          */
 383         orion5x_init();
 384 
 385         orion5x_mpp_conf(net2big_mpp_modes);
 386 
 387         /*
 388          * Configure peripherals.
 389          */
 390         orion5x_ehci0_init();
 391         orion5x_ehci1_init();
 392         orion5x_eth_init(&net2big_eth_data);
 393         orion5x_i2c_init();
 394         orion5x_uart0_init();
 395         orion5x_xor_init();
 396 
 397         net2big_sata_power_init();
 398         orion5x_sata_init(&net2big_sata_data);
 399 
 400         mvebu_mbus_add_window_by_id(ORION_MBUS_DEVBUS_BOOT_TARGET,
 401                                     ORION_MBUS_DEVBUS_BOOT_ATTR,
 402                                     NET2BIG_NOR_BOOT_BASE,
 403                                     NET2BIG_NOR_BOOT_SIZE);
 404         platform_device_register(&net2big_nor_flash);
 405 
 406         platform_device_register(&net2big_gpio_buttons);
 407         net2big_gpio_leds_init();
 408 
 409         i2c_register_board_info(0, net2big_i2c_devices,
 410                                 ARRAY_SIZE(net2big_i2c_devices));
 411 
 412         orion_gpio_set_valid(NET2BIG_GPIO_POWER_OFF, 1);
 413 
 414         if (gpio_request(NET2BIG_GPIO_POWER_OFF, "power-off") == 0 &&
 415             gpio_direction_output(NET2BIG_GPIO_POWER_OFF, 0) == 0)
 416                 pm_power_off = net2big_power_off;
 417         else
 418                 pr_err("net2big: failed to configure power-off GPIO\n");
 419 
 420         pr_notice("net2big: Flash writing is not yet supported.\n");
 421 }
 422 
 423 /* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
 424 MACHINE_START(NET2BIG, "LaCie 2Big Network")
 425         .atag_offset    = 0x100,
 426         .nr_irqs        = ORION5X_NR_IRQS,
 427         .init_machine   = net2big_init,
 428         .map_io         = orion5x_map_io,
 429         .init_early     = orion5x_init_early,
 430         .init_irq       = orion5x_init_irq,
 431         .init_time      = orion5x_timer_init,
 432         .fixup          = tag_fixup_mem32,
 433         .restart        = orion5x_restart,
 434 MACHINE_END
 435