arch/arm/mach-orion5x/d2net-setup.c

   1 /*
   2  * arch/arm/mach-orion5x/d2net-setup.c
   3  *
   4  * LaCie d2Network and Big Disk 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/pci.h>
  17 #include <linux/irq.h>
  18 #include <linux/mtd/physmap.h>
  19 #include <linux/mv643xx_eth.h>
  20 #include <linux/leds.h>
  21 #include <linux/gpio_keys.h>
  22 #include <linux/input.h>
  23 #include <linux/i2c.h>
  24 #include <linux/ata_platform.h>
  25 #include <linux/gpio.h>
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/pci.h>
  29 #include <mach/orion5x.h>
  30 #include <plat/orion-gpio.h>
  31 #include "common.h"
  32 #include "mpp.h"
  33
  34 /*****************************************************************************
  35  * LaCie d2 Network Info
  36  ****************************************************************************/
  37
  38 /*
  39  * 512KB NOR flash Device bus boot chip select
  40  */
  41
  42 #define D2NET_NOR_BOOT_BASE             0xfff80000
  43 #define D2NET_NOR_BOOT_SIZE             SZ_512K
  44
  45 /*****************************************************************************
  46  * 512KB NOR Flash on Boot Device
  47  ****************************************************************************/
  48
  49 /*
  50  * TODO: Check write support on flash MX29LV400CBTC-70G
  51  */
  52
  53 static struct mtd_partition d2net_partitions[] = {
  54         {
  55                 .name           = "Full512kb",
  56                 .size           = MTDPART_SIZ_FULL,
  57                 .offset         = 0,
  58                 .mask_flags     = MTD_WRITEABLE,
  59         },
  60 };
  61
  62 static struct physmap_flash_data d2net_nor_flash_data = {
  63         .width          = 1,
  64         .parts          = d2net_partitions,
  65         .nr_parts       = ARRAY_SIZE(d2net_partitions),
  66 };
  67
  68 static struct resource d2net_nor_flash_resource = {
  69         .flags                  = IORESOURCE_MEM,
  70         .start                  = D2NET_NOR_BOOT_BASE,
  71         .end                    = D2NET_NOR_BOOT_BASE
  72                                         + D2NET_NOR_BOOT_SIZE - 1,
  73 };
  74
  75 static struct platform_device d2net_nor_flash = {
  76         .name                   = "physmap-flash",
  77         .id                     = 0,
  78         .dev            = {
  79                 .platform_data  = &d2net_nor_flash_data,
  80         },
  81         .num_resources          = 1,
  82         .resource               = &d2net_nor_flash_resource,
  83 };
  84
  85 /*****************************************************************************
  86  * Ethernet
  87  ****************************************************************************/
  88
  89 static struct mv643xx_eth_platform_data d2net_eth_data = {
  90         .phy_addr       = MV643XX_ETH_PHY_ADDR(8),
  91 };
  92
  93 /*****************************************************************************
  94  * I2C devices
  95  ****************************************************************************/
  96
  97 /*
  98  * i2c addr | chip         | description
  99  * 0x32     | Ricoh 5C372b | RTC
 100  * 0x3e     | GMT G762     | PWM fan controller
 101  * 0x50     | HT24LC08     | eeprom (1kB)
 102  *
 103  * TODO: Add G762 support to the g760a driver.
 104  */
 105 static struct i2c_board_info __initdata d2net_i2c_devices[] = {
 106         {
 107                 I2C_BOARD_INFO("rs5c372b", 0x32),
 108         }, {
 109                 I2C_BOARD_INFO("24c08", 0x50),
 110         },
 111 };
 112
 113 /*****************************************************************************
 114  * SATA
 115  ****************************************************************************/
 116
 117 static struct mv_sata_platform_data d2net_sata_data = {
 118         .n_ports        = 2,
 119 };
 120
 121 #define D2NET_GPIO_SATA0_POWER  3
 122 #define D2NET_GPIO_SATA1_POWER  12
 123
 124 static void __init d2net_sata_power_init(void)
 125 {
 126         int err;
 127
 128         err = gpio_request(D2NET_GPIO_SATA0_POWER, "SATA0 power");
 129         if (err == 0) {
 130                 err = gpio_direction_output(D2NET_GPIO_SATA0_POWER, 1);
 131                 if (err)
 132                         gpio_free(D2NET_GPIO_SATA0_POWER);
 133         }
 134         if (err)
 135                 pr_err("d2net: failed to configure SATA0 power GPIO\n");
 136
 137         err = gpio_request(D2NET_GPIO_SATA1_POWER, "SATA1 power");
 138         if (err == 0) {
 139                 err = gpio_direction_output(D2NET_GPIO_SATA1_POWER, 1);
 140                 if (err)
 141                         gpio_free(D2NET_GPIO_SATA1_POWER);
 142         }
 143         if (err)
 144                 pr_err("d2net: failed to configure SATA1 power GPIO\n");
 145 }
 146
 147 /*****************************************************************************
 148  * GPIO LED's
 149  ****************************************************************************/
 150
 151 /*
 152  * The blue front LED is wired to the CPLD and can blink in relation with the
 153  * SATA activity.
 154  *
 155  * The following array detail the different LED registers and the combination
 156  * of their possible values:
 157  *
 158  * led_off   | blink_ctrl | SATA active | LED state
 159  *           |            |             |
 160  *    1      |     x      |      x      |  off
 161  *    0      |     0      |      0      |  off
 162  *    0      |     1      |      0      |  blink (rate 300ms)
 163  *    0      |     x      |      1      |  on
 164  *
 165  * Notes: The blue and the red front LED's can't be on at the same time.
 166  *        Red LED have priority.
 167  */
 168
 169 #define D2NET_GPIO_RED_LED              6
 170 #define D2NET_GPIO_BLUE_LED_BLINK_CTRL  16
 171 #define D2NET_GPIO_BLUE_LED_OFF         23
 172
 173 static struct gpio_led d2net_leds[] = {
 174         {
 175                 .name = "d2net:blue:sata",
 176                 .default_trigger = "default-on",
 177                 .gpio = D2NET_GPIO_BLUE_LED_OFF,
 178                 .active_low = 1,
 179         },
 180         {
 181                 .name = "d2net:red:fail",
 182                 .gpio = D2NET_GPIO_RED_LED,
 183         },
 184 };
 185
 186 static struct gpio_led_platform_data d2net_led_data = {
 187         .num_leds = ARRAY_SIZE(d2net_leds),
 188         .leds = d2net_leds,
 189 };
 190
 191 static struct platform_device d2net_gpio_leds = {
 192         .name           = "leds-gpio",
 193         .id             = -1,
 194         .dev            = {
 195                 .platform_data  = &d2net_led_data,
 196         },
 197 };
 198
 199 static void __init d2net_gpio_leds_init(void)
 200 {
 201         int err;
 202
 203         /* Configure GPIO over MPP max number. */
 204         orion_gpio_set_valid(D2NET_GPIO_BLUE_LED_OFF, 1);
 205
 206         /* Configure register blink_ctrl to allow SATA activity LED blinking. */
 207         err = gpio_request(D2NET_GPIO_BLUE_LED_BLINK_CTRL, "blue LED blink");
 208         if (err == 0) {
 209                 err = gpio_direction_output(D2NET_GPIO_BLUE_LED_BLINK_CTRL, 1);
 210                 if (err)
 211                         gpio_free(D2NET_GPIO_BLUE_LED_BLINK_CTRL);
 212         }
 213         if (err)
 214                 pr_err("d2net: failed to configure blue LED blink GPIO\n");
 215
 216         platform_device_register(&d2net_gpio_leds);
 217 }
 218
 219 /****************************************************************************
 220  * GPIO keys
 221  ****************************************************************************/
 222
 223 #define D2NET_GPIO_PUSH_BUTTON          18
 224 #define D2NET_GPIO_POWER_SWITCH_ON      8
 225 #define D2NET_GPIO_POWER_SWITCH_OFF     9
 226
 227 #define D2NET_SWITCH_POWER_ON           0x1
 228 #define D2NET_SWITCH_POWER_OFF          0x2
 229
 230 static struct gpio_keys_button d2net_buttons[] = {
 231         {
 232                 .type           = EV_SW,
 233                 .code           = D2NET_SWITCH_POWER_OFF,
 234                 .gpio           = D2NET_GPIO_POWER_SWITCH_OFF,
 235                 .desc           = "Power rocker switch (auto|off)",
 236                 .active_low     = 0,
 237         },
 238         {
 239                 .type           = EV_SW,
 240                 .code           = D2NET_SWITCH_POWER_ON,
 241                 .gpio           = D2NET_GPIO_POWER_SWITCH_ON,
 242                 .desc           = "Power rocker switch (on|auto)",
 243                 .active_low     = 0,
 244         },
 245         {
 246                 .type           = EV_KEY,
 247                 .code           = KEY_POWER,
 248                 .gpio           = D2NET_GPIO_PUSH_BUTTON,
 249                 .desc           = "Front Push Button",
 250                 .active_low     = 0,
 251         },
 252 };
 253
 254 static struct gpio_keys_platform_data d2net_button_data = {
 255         .buttons        = d2net_buttons,
 256         .nbuttons       = ARRAY_SIZE(d2net_buttons),
 257 };
 258
 259 static struct platform_device d2net_gpio_buttons = {
 260         .name           = "gpio-keys",
 261         .id             = -1,
 262         .dev            = {
 263                 .platform_data  = &d2net_button_data,
 264         },
 265 };
 266
 267 /*****************************************************************************
 268  * General Setup
 269  ****************************************************************************/
 270
 271 static unsigned int d2net_mpp_modes[] __initdata = {
 272         MPP0_GPIO,      /* Board ID (bit 0) */
 273         MPP1_GPIO,      /* Board ID (bit 1) */
 274         MPP2_GPIO,      /* Board ID (bit 2) */
 275         MPP3_GPIO,      /* SATA 0 power */
 276         MPP4_UNUSED,
 277         MPP5_GPIO,      /* Fan fail detection */
 278         MPP6_GPIO,      /* Red front LED */
 279         MPP7_UNUSED,
 280         MPP8_GPIO,      /* Rear power switch (on|auto) */
 281         MPP9_GPIO,      /* Rear power switch (auto|off) */
 282         MPP10_UNUSED,
 283         MPP11_UNUSED,
 284         MPP12_GPIO,     /* SATA 1 power */
 285         MPP13_UNUSED,
 286         MPP14_SATA_LED, /* SATA 0 active */
 287         MPP15_SATA_LED, /* SATA 1 active */
 288         MPP16_GPIO,     /* Blue front LED blink control */
 289         MPP17_UNUSED,
 290         MPP18_GPIO,     /* Front button (0 = Released, 1 = Pushed ) */
 291         MPP19_UNUSED,
 292         0,
 293         /* 22: USB port 1 fuse (0 = Fail, 1 = Ok) */
 294         /* 23: Blue front LED off */
 295         /* 24: Inhibit board power off (0 = Disabled, 1 = Enabled) */
 296 };
 297
 298 #define D2NET_GPIO_INHIBIT_POWER_OFF    24
 299
 300 static void __init d2net_init(void)
 301 {
 302         /*
 303          * Setup basic Orion functions. Need to be called early.
 304          */
 305         orion5x_init();
 306
 307         orion5x_mpp_conf(d2net_mpp_modes);
 308
 309         /*
 310          * Configure peripherals.
 311          */
 312         orion5x_ehci0_init();
 313         orion5x_eth_init(&d2net_eth_data);
 314         orion5x_i2c_init();
 315         orion5x_uart0_init();
 316
 317         d2net_sata_power_init();
 318         orion5x_sata_init(&d2net_sata_data);
 319
 320         mvebu_mbus_add_window("devbus-boot", D2NET_NOR_BOOT_BASE,
 321                               D2NET_NOR_BOOT_SIZE);
 322         platform_device_register(&d2net_nor_flash);
 323
 324         platform_device_register(&d2net_gpio_buttons);
 325
 326         d2net_gpio_leds_init();
 327
 328         pr_notice("d2net: Flash write are not yet supported.\n");
 329
 330         i2c_register_board_info(0, d2net_i2c_devices,
 331                                 ARRAY_SIZE(d2net_i2c_devices));
 332
 333         orion_gpio_set_valid(D2NET_GPIO_INHIBIT_POWER_OFF, 1);
 334 }
 335
 336 /* Warning: LaCie use a wrong mach-type (0x20e=526) in their bootloader. */
 337
 338 #ifdef CONFIG_MACH_D2NET
 339 MACHINE_START(D2NET, "LaCie d2 Network")
 340         .atag_offset    = 0x100,
 341         .init_machine   = d2net_init,
 342         .map_io         = orion5x_map_io,
 343         .init_early     = orion5x_init_early,
 344         .init_irq       = orion5x_init_irq,
 345         .init_time      = orion5x_timer_init,
 346         .fixup          = tag_fixup_mem32,
 347         .restart        = orion5x_restart,
 348 MACHINE_END
 349 #endif
 350
 351 #ifdef CONFIG_MACH_BIGDISK
 352 MACHINE_START(BIGDISK, "LaCie Big Disk Network")
 353         .atag_offset    = 0x100,
 354         .init_machine   = d2net_init,
 355         .map_io         = orion5x_map_io,
 356         .init_early     = orion5x_init_early,
 357         .init_irq       = orion5x_init_irq,
 358         .init_time      = orion5x_timer_init,
 359         .fixup          = tag_fixup_mem32,
 360         .restart        = orion5x_restart,
 361 MACHINE_END
 362 #endif
 363