release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-orion5x/net2big-setup.c

   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 <mach/orion5x.h>
  28 #include "common.h"
  29 #include "mpp.h"
  30
  31 /*****************************************************************************
  32  * LaCie 2Big Network Info
  33  ****************************************************************************/
  34
  35 /*
  36  * 512KB NOR flash Device bus boot chip select
  37  */
  38
  39 #define NET2BIG_NOR_BOOT_BASE           0xfff80000
  40 #define NET2BIG_NOR_BOOT_SIZE           SZ_512K
  41
  42 /*****************************************************************************
  43  * 512KB NOR Flash on Boot Device
  44  ****************************************************************************/
  45
  46 /*
  47  * TODO: Check write support on flash MX29LV400CBTC-70G
  48  */
  49
  50 static struct mtd_partition net2big_partitions[] = {
  51         {
  52                 .name           = "Full512kb",
  53                 .size           = MTDPART_SIZ_FULL,
  54                 .offset         = 0x00000000,
  55                 .mask_flags     = MTD_WRITEABLE,
  56         },
  57 };
  58
  59 static struct physmap_flash_data net2big_nor_flash_data = {
  60         .width          = 1,
  61         .parts          = net2big_partitions,
  62         .nr_parts       = ARRAY_SIZE(net2big_partitions),
  63 };
  64
  65 static struct resource net2big_nor_flash_resource = {
  66         .flags                  = IORESOURCE_MEM,
  67         .start                  = NET2BIG_NOR_BOOT_BASE,
  68         .end                    = NET2BIG_NOR_BOOT_BASE
  69                                         + NET2BIG_NOR_BOOT_SIZE - 1,
  70 };
  71
  72 static struct platform_device net2big_nor_flash = {
  73         .name                   = "physmap-flash",
  74         .id                     = 0,
  75         .dev            = {
  76                 .platform_data  = &net2big_nor_flash_data,
  77         },
  78         .num_resources          = 1,
  79         .resource               = &net2big_nor_flash_resource,
  80 };
  81
  82 /*****************************************************************************
  83  * Ethernet
  84  ****************************************************************************/
  85
  86 static struct mv643xx_eth_platform_data net2big_eth_data = {
  87         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
  88 };
  89
  90 /*****************************************************************************
  91  * I2C devices
  92  ****************************************************************************/
  93
  94 /*
  95  * i2c addr | chip         | description
  96  * 0x32     | Ricoh 5C372b | RTC
  97  * 0x50     | HT24LC08     | eeprom (1kB)
  98  */
  99 static struct i2c_board_info __initdata net2big_i2c_devices[] = {
 100         {
 101                 I2C_BOARD_INFO("rs5c372b", 0x32),
 102         }, {
 103                 I2C_BOARD_INFO("24c08", 0x50),
 104         },
 105 };
 106
 107 /*****************************************************************************
 108  * SATA
 109  ****************************************************************************/
 110
 111 static struct mv_sata_platform_data net2big_sata_data = {
 112         .n_ports        = 2,
 113 };
 114
 115 #define NET2BIG_GPIO_SATA_POWER_REQ     19
 116 #define NET2BIG_GPIO_SATA0_POWER        23
 117 #define NET2BIG_GPIO_SATA1_POWER        25
 118
 119 static void __init net2big_sata_power_init(void)
 120 {
 121         int err;
 122
 123         /* Configure GPIOs over MPP max number. */
 124         orion_gpio_set_valid(NET2BIG_GPIO_SATA0_POWER, 1);
 125         orion_gpio_set_valid(NET2BIG_GPIO_SATA1_POWER, 1);
 126
 127         err = gpio_request(NET2BIG_GPIO_SATA0_POWER, "SATA0 power status");
 128         if (err == 0) {
 129                 err = gpio_direction_input(NET2BIG_GPIO_SATA0_POWER);
 130                 if (err)
 131                         gpio_free(NET2BIG_GPIO_SATA0_POWER);
 132         }
 133         if (err) {
 134                 pr_err("net2big: failed to setup SATA0 power GPIO\n");
 135                 return;
 136         }
 137
 138         err = gpio_request(NET2BIG_GPIO_SATA1_POWER, "SATA1 power status");
 139         if (err == 0) {
 140                 err = gpio_direction_input(NET2BIG_GPIO_SATA1_POWER);
 141                 if (err)
 142                         gpio_free(NET2BIG_GPIO_SATA1_POWER);
 143         }
 144         if (err) {
 145                 pr_err("net2big: failed to setup SATA1 power GPIO\n");
 146                 goto err_free_1;
 147         }
 148
 149         err = gpio_request(NET2BIG_GPIO_SATA_POWER_REQ, "SATA power request");
 150         if (err == 0) {
 151                 err = gpio_direction_output(NET2BIG_GPIO_SATA_POWER_REQ, 0);
 152                 if (err)
 153                         gpio_free(NET2BIG_GPIO_SATA_POWER_REQ);
 154         }
 155         if (err) {
 156                 pr_err("net2big: failed to setup SATA power request GPIO\n");
 157                 goto err_free_2;
 158         }
 159
 160         if (gpio_get_value(NET2BIG_GPIO_SATA0_POWER) &&
 161                 gpio_get_value(NET2BIG_GPIO_SATA1_POWER)) {
 162                 return;
 163         }
 164
 165         /*
 166          * SATA power up on both disk is done by pulling high the CPLD power
 167          * request line. The 300ms delay is related to the CPLD clock and is
 168          * needed to be sure that the CPLD has take into account the low line
 169          * status.
 170          */
 171         msleep(300);
 172         gpio_set_value(NET2BIG_GPIO_SATA_POWER_REQ, 1);
 173         pr_info("net2big: power up SATA hard disks\n");
 174
 175         return;
 176
 177 err_free_2:
 178         gpio_free(NET2BIG_GPIO_SATA1_POWER);
 179 err_free_1:
 180         gpio_free(NET2BIG_GPIO_SATA0_POWER);
 181
 182         return;
 183 }
 184
 185 /*****************************************************************************
 186  * GPIO LEDs
 187  ****************************************************************************/
 188
 189 /*
 190  * The power front LEDs (blue and red) and SATA red LEDs are controlled via a
 191  * single GPIO line and are compatible with the leds-gpio driver.
 192  *
 193  * The SATA blue LEDs have some hardware blink capabilities which are detailled
 194  * in the following array:
 195  *
 196  * SATAx blue LED | SATAx activity | LED state
 197  *                |                |
 198  *       0        |       0        |  blink (rate 300ms)
 199  *       1        |       0        |  off
 200  *       ?        |       1        |  on
 201  *
 202  * Notes: The blue and the red front LED's can't be on at the same time.
 203  *        Blue LED have priority.
 204  */
 205
 206 #define NET2BIG_GPIO_PWR_RED_LED        6
 207 #define NET2BIG_GPIO_PWR_BLUE_LED       16
 208 #define NET2BIG_GPIO_PWR_LED_BLINK_STOP 7
 209
 210 #define NET2BIG_GPIO_SATA0_RED_LED      11
 211 #define NET2BIG_GPIO_SATA1_RED_LED      10
 212
 213 #define NET2BIG_GPIO_SATA0_BLUE_LED     17
 214 #define NET2BIG_GPIO_SATA1_BLUE_LED     13
 215
 216 static struct gpio_led net2big_leds[] = {
 217         {
 218                 .name = "net2big:red:power",
 219                 .gpio = NET2BIG_GPIO_PWR_RED_LED,
 220         },
 221         {
 222                 .name = "net2big:blue:power",
 223                 .gpio = NET2BIG_GPIO_PWR_BLUE_LED,
 224         },
 225         {
 226                 .name = "net2big:red:sata0",
 227                 .gpio = NET2BIG_GPIO_SATA0_RED_LED,
 228         },
 229         {
 230                 .name = "net2big:red:sata1",
 231                 .gpio = NET2BIG_GPIO_SATA1_RED_LED,
 232         },
 233 };
 234
 235 static struct gpio_led_platform_data net2big_led_data = {
 236         .num_leds = ARRAY_SIZE(net2big_leds),
 237         .leds = net2big_leds,
 238 };
 239
 240 static struct platform_device net2big_gpio_leds = {
 241         .name           = "leds-gpio",
 242         .id             = -1,
 243         .dev            = {
 244                 .platform_data  = &net2big_led_data,
 245         },
 246 };
 247
 248 static void __init net2big_gpio_leds_init(void)
 249 {
 250         int err;
 251
 252         /* Stop initial CPLD slow red/blue blinking on power LED. */
 253         err = gpio_request(NET2BIG_GPIO_PWR_LED_BLINK_STOP,
 254                            "Power LED blink stop");
 255         if (err == 0) {
 256                 err = gpio_direction_output(NET2BIG_GPIO_PWR_LED_BLINK_STOP, 1);
 257                 if (err)
 258                         gpio_free(NET2BIG_GPIO_PWR_LED_BLINK_STOP);
 259         }
 260         if (err)
 261                 pr_err("net2big: failed to setup power LED blink GPIO\n");
 262
 263         /*
 264          * Configure SATA0 and SATA1 blue LEDs to blink in relation with the
 265          * hard disk activity.
 266          */
 267         err = gpio_request(NET2BIG_GPIO_SATA0_BLUE_LED,
 268                            "SATA0 blue LED control");
 269         if (err == 0) {
 270                 err = gpio_direction_output(NET2BIG_GPIO_SATA0_BLUE_LED, 1);
 271                 if (err)
 272                         gpio_free(NET2BIG_GPIO_SATA0_BLUE_LED);
 273         }
 274         if (err)
 275                 pr_err("net2big: failed to setup SATA0 blue LED GPIO\n");
 276
 277         err = gpio_request(NET2BIG_GPIO_SATA1_BLUE_LED,
 278                            "SATA1 blue LED control");
 279         if (err == 0) {
 280                 err = gpio_direction_output(NET2BIG_GPIO_SATA1_BLUE_LED, 1);
 281                 if (err)
 282                         gpio_free(NET2BIG_GPIO_SATA1_BLUE_LED);
 283         }
 284         if (err)
 285                 pr_err("net2big: failed to setup SATA1 blue LED GPIO\n");
 286
 287         platform_device_register(&net2big_gpio_leds);
 288 }
 289
 290 /****************************************************************************
 291  * GPIO keys
 292  ****************************************************************************/
 293
 294 #define NET2BIG_GPIO_PUSH_BUTTON        18
 295 #define NET2BIG_GPIO_POWER_SWITCH_ON    8
 296 #define NET2BIG_GPIO_POWER_SWITCH_OFF   9
 297
 298 #define NET2BIG_SWITCH_POWER_ON         0x1
 299 #define NET2BIG_SWITCH_POWER_OFF        0x2
 300
 301 static struct gpio_keys_button net2big_buttons[] = {
 302         {
 303                 .type           = EV_SW,
 304                 .code           = NET2BIG_SWITCH_POWER_OFF,
 305                 .gpio           = NET2BIG_GPIO_POWER_SWITCH_OFF,
 306                 .desc           = "Power rocker switch (auto|off)",
 307                 .active_low     = 0,
 308         },
 309         {
 310                 .type           = EV_SW,
 311                 .code           = NET2BIG_SWITCH_POWER_ON,
 312                 .gpio           = NET2BIG_GPIO_POWER_SWITCH_ON,
 313                 .desc           = "Power rocker switch (on|auto)",
 314                 .active_low     = 0,
 315         },
 316         {
 317                 .type           = EV_KEY,
 318                 .code           = KEY_POWER,
 319                 .gpio           = NET2BIG_GPIO_PUSH_BUTTON,
 320                 .desc           = "Front Push Button",
 321                 .active_low     = 0,
 322         },
 323 };
 324
 325 static struct gpio_keys_platform_data net2big_button_data = {
 326         .buttons        = net2big_buttons,
 327         .nbuttons       = ARRAY_SIZE(net2big_buttons),
 328 };
 329
 330 static struct platform_device net2big_gpio_buttons = {
 331         .name           = "gpio-keys",
 332         .id             = -1,
 333         .dev            = {
 334                 .platform_data  = &net2big_button_data,
 335         },
 336 };
 337
 338 /*****************************************************************************
 339  * General Setup
 340  ****************************************************************************/
 341
 342 static struct orion5x_mpp_mode net2big_mpp_modes[] __initdata = {
 343         {  0, MPP_GPIO },       /* Raid mode (bit 0) */
 344         {  1, MPP_GPIO },       /* USB port 2 fuse (0 = Fail, 1 = Ok) */
 345         {  2, MPP_GPIO },       /* Raid mode (bit 1) */
 346         {  3, MPP_GPIO },       /* Board ID (bit 0) */
 347         {  4, MPP_GPIO },       /* Fan activity (0 = Off, 1 = On) */
 348         {  5, MPP_GPIO },       /* Fan fail detection */
 349         {  6, MPP_GPIO },       /* Red front LED (0 = Off, 1 = On) */
 350         {  7, MPP_GPIO },       /* Disable initial blinking on front LED */
 351         {  8, MPP_GPIO },       /* Rear power switch (on|auto) */
 352         {  9, MPP_GPIO },       /* Rear power switch (auto|off) */
 353         { 10, MPP_GPIO },       /* SATA 1 red LED (0 = Off, 1 = On) */
 354         { 11, MPP_GPIO },       /* SATA 0 red LED (0 = Off, 1 = On) */
 355         { 12, MPP_GPIO },       /* Board ID (bit 1) */
 356         { 13, MPP_GPIO },       /* SATA 1 blue LED blink control */
 357         { 14, MPP_SATA_LED },
 358         { 15, MPP_SATA_LED },
 359         { 16, MPP_GPIO },       /* Blue front LED control */
 360         { 17, MPP_GPIO },       /* SATA 0 blue LED blink control */
 361         { 18, MPP_GPIO },       /* Front button (0 = Released, 1 = Pushed ) */
 362         { 19, MPP_GPIO },       /* SATA{0,1} power On/Off request */
 363         { -1 }
 364         /* 22: USB port 1 fuse (0 = Fail, 1 = Ok) */
 365         /* 23: SATA 0 power status */
 366         /* 24: Board power off */
 367         /* 25: SATA 1 power status */
 368 };
 369
 370 #define NET2BIG_GPIO_POWER_OFF          24
 371
 372 static void net2big_power_off(void)
 373 {
 374         gpio_set_value(NET2BIG_GPIO_POWER_OFF, 1);
 375 }
 376
 377 static void __init net2big_init(void)
 378 {
 379         /*
 380          * Setup basic Orion functions. Need to be called early.
 381          */
 382         orion5x_init();
 383
 384         orion5x_mpp_conf(net2big_mpp_modes);
 385
 386         /*
 387          * Configure peripherals.
 388          */
 389         orion5x_ehci0_init();
 390         orion5x_ehci1_init();
 391         orion5x_eth_init(&net2big_eth_data);
 392         orion5x_i2c_init();
 393         orion5x_uart0_init();
 394         orion5x_xor_init();
 395
 396         net2big_sata_power_init();
 397         orion5x_sata_init(&net2big_sata_data);
 398
 399         orion5x_setup_dev_boot_win(NET2BIG_NOR_BOOT_BASE,
 400                                    NET2BIG_NOR_BOOT_SIZE);
 401         platform_device_register(&net2big_nor_flash);
 402
 403         platform_device_register(&net2big_gpio_buttons);
 404         net2big_gpio_leds_init();
 405
 406         i2c_register_board_info(0, net2big_i2c_devices,
 407                                 ARRAY_SIZE(net2big_i2c_devices));
 408
 409         orion_gpio_set_valid(NET2BIG_GPIO_POWER_OFF, 1);
 410
 411         if (gpio_request(NET2BIG_GPIO_POWER_OFF, "power-off") == 0 &&
 412             gpio_direction_output(NET2BIG_GPIO_POWER_OFF, 0) == 0)
 413                 pm_power_off = net2big_power_off;
 414         else
 415                 pr_err("net2big: failed to configure power-off GPIO\n");
 416
 417         pr_notice("net2big: Flash writing is not yet supported.\n");
 418 }
 419
 420 /* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
 421 MACHINE_START(NET2BIG, "LaCie 2Big Network")
 422         .phys_io        = ORION5X_REGS_PHYS_BASE,
 423         .io_pg_offst    = ((ORION5X_REGS_VIRT_BASE) >> 18) & 0xFFFC,
 424         .boot_params    = 0x00000100,
 425         .init_machine   = net2big_init,
 426         .map_io         = orion5x_map_io,
 427         .init_irq       = orion5x_init_irq,
 428         .timer          = &orion5x_timer,
 429         .fixup          = tag_fixup_mem32,
 430 MACHINE_END