linux/arch/arm/mach-orion5x/net2big-setup.c
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   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
  51static 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
  60static struct physmap_flash_data net2big_nor_flash_data = {
  61        .width          = 1,
  62        .parts          = net2big_partitions,
  63        .nr_parts       = ARRAY_SIZE(net2big_partitions),
  64};
  65
  66static 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
  73static 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
  87static 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 */
 100static 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
 112static 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
 120static 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
 178err_free_2:
 179        gpio_free(NET2BIG_GPIO_SATA1_POWER);
 180err_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
 217static 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
 236static struct gpio_led_platform_data net2big_led_data = {
 237        .num_leds = ARRAY_SIZE(net2big_leds),
 238        .leds = net2big_leds,
 239};
 240
 241static struct platform_device net2big_gpio_leds = {
 242        .name           = "leds-gpio",
 243        .id             = -1,
 244        .dev            = {
 245                .platform_data  = &net2big_led_data,
 246        },
 247};
 248
 249static 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
 302static 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
 326static struct gpio_keys_platform_data net2big_button_data = {
 327        .buttons        = net2big_buttons,
 328        .nbuttons       = ARRAY_SIZE(net2big_buttons),
 329};
 330
 331static 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
 343static 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
 373static void net2big_power_off(void)
 374{
 375        gpio_set_value(NET2BIG_GPIO_POWER_OFF, 1);
 376}
 377
 378static 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. */
 424MACHINE_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,
 434MACHINE_END
 435
 436