arch/arm/mach-omap2/board-rx51-peripherals.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-rx51-flash.c
   3  *
   4  * Copyright (C) 2008-2009 Nokia
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/platform_device.h>
  14 #include <linux/input.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/spi/tsc2005.h>
  17 #include <linux/i2c.h>
  18 #include <linux/i2c/twl4030.h>
  19 #include <linux/clk.h>
  20 #include <linux/delay.h>
  21 #include <linux/regulator/machine.h>
  22
  23 #include <mach/mcspi.h>
  24 #include <mach/gpio.h>
  25 #include <mach/mux.h>
  26 #include <mach/board.h>
  27 #include <mach/common.h>
  28 #include <mach/dma.h>
  29 #include <mach/gpmc.h>
  30
  31 #include "mmc-twl4030.h"
  32
  33 #define SYSTEM_REV_B_USES_VAUX3 0x1699
  34 #define SYSTEM_REV_S_USES_VAUX3 0x8
  35
  36 #define SMC91X_CS                       1
  37 #define SMC91X_GPIO_IRQ                 54
  38 #define SMC91X_GPIO_RESET               164
  39 #define SMC91X_GPIO_PWRDWN              86
  40
  41 #define RX51_TSC2005_RESET_GPIO         104
  42 #define RX51_TSC2005_IRQ_GPIO           100
  43
  44 static struct resource rx51_smc91x_resources[] = {
  45         [0] = {
  46                 .flags          = IORESOURCE_MEM,
  47         },
  48         [1] = {
  49                 .flags          = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  50         },
  51 };
  52
  53 static struct platform_device rx51_smc91x_device = {
  54         .name           = "smc91x",
  55         .id             = -1,
  56         .num_resources  = ARRAY_SIZE(rx51_smc91x_resources),
  57         .resource       = rx51_smc91x_resources,
  58 };
  59
  60 static struct tsc2005_platform_data tsc2005_config = {
  61         .reset_gpio             = RX51_TSC2005_RESET_GPIO, /* not used */
  62
  63         .ts_x_plate_ohm         = 280,
  64         .ts_hw_avg              = 0,
  65         .ts_touch_pressure      = 1500,
  66         .ts_stab_time           = 1000,
  67         .ts_pressure_max        = 2048,
  68         .ts_pressure_fudge      = 2,
  69         .ts_x_max               = 4096,
  70         .ts_x_fudge             = 4,
  71         .ts_y_max               = 4096,
  72         .ts_y_fudge             = 7,
  73 };
  74
  75 static struct omap2_mcspi_device_config tsc2005_mcspi_config = {
  76         .turbo_mode     = 0,
  77         .single_channel = 1,
  78 };
  79
  80 static struct spi_board_info rx51_peripherals_spi_board_info[] = {
  81         [0] = {
  82                 .modalias               = "tsc2005",
  83                 .bus_num                = 1,
  84                 .chip_select            = 0,
  85                 .irq                    = OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO),
  86                 .max_speed_hz           = 6000000,
  87                 .controller_data        = &tsc2005_mcspi_config,
  88                 .platform_data          = &tsc2005_config,
  89         },
  90 };
  91
  92 static int rx51_keymap[] = {
  93         KEY(0, 0, KEY_Q),
  94         KEY(0, 1, KEY_W),
  95         KEY(0, 2, KEY_E),
  96         KEY(0, 3, KEY_R),
  97         KEY(0, 4, KEY_T),
  98         KEY(0, 5, KEY_Y),
  99         KEY(0, 6, KEY_U),
 100         KEY(0, 7, KEY_I),
 101         KEY(1, 0, KEY_O),
 102         KEY(1, 1, KEY_D),
 103         KEY(1, 2, KEY_DOT),
 104         KEY(1, 3, KEY_V),
 105         KEY(1, 4, KEY_DOWN),
 106         KEY(2, 0, KEY_P),
 107         KEY(2, 1, KEY_F),
 108         KEY(2, 2, KEY_UP),
 109         KEY(2, 3, KEY_B),
 110         KEY(2, 4, KEY_RIGHT),
 111         KEY(3, 0, KEY_COMMA),
 112         KEY(3, 1, KEY_G),
 113         KEY(3, 2, KEY_ENTER),
 114         KEY(3, 3, KEY_N),
 115         KEY(4, 0, KEY_BACKSPACE),
 116         KEY(4, 1, KEY_H),
 117         KEY(4, 3, KEY_M),
 118         KEY(4, 4, KEY_LEFTCTRL),
 119         KEY(5, 1, KEY_J),
 120         KEY(5, 2, KEY_Z),
 121         KEY(5, 3, KEY_SPACE),
 122         KEY(5, 4, KEY_LEFTSHIFT),
 123         KEY(6, 0, KEY_A),
 124         KEY(6, 1, KEY_K),
 125         KEY(6, 2, KEY_X),
 126         KEY(6, 3, KEY_SPACE),
 127         KEY(6, 4, KEY_FN),
 128         KEY(7, 0, KEY_S),
 129         KEY(7, 1, KEY_L),
 130         KEY(7, 2, KEY_C),
 131         KEY(7, 3, KEY_LEFT),
 132         KEY(0xff, 0, KEY_F6),
 133         KEY(0xff, 1, KEY_F7),
 134         KEY(0xff, 2, KEY_F8),
 135         KEY(0xff, 4, KEY_F9),
 136         KEY(0xff, 5, KEY_F10),
 137 };
 138
 139 static struct twl4030_keypad_data rx51_kp_data = {
 140         .rows           = 8,
 141         .cols           = 8,
 142         .keymap         = rx51_keymap,
 143         .keymapsize     = ARRAY_SIZE(rx51_keymap),
 144         .rep            = 1,
 145 };
 146
 147 static struct platform_device *rx51_peripherals_devices[] = {
 148         &rx51_smc91x_device,
 149 };
 150
 151 /*
 152  * Timings are taken from smsc-lan91c96-ms.pdf
 153  */
 154 static int smc91x_init_gpmc(int cs)
 155 {
 156         struct gpmc_timings t;
 157         const int t2_r = 45;            /* t2 in Figure 12.10 */
 158         const int t2_w = 30;            /* t2 in Figure 12.11 */
 159         const int t3 = 15;              /* t3 in Figure 12.10 */
 160         const int t5_r = 0;             /* t5 in Figure 12.10 */
 161         const int t6_r = 45;            /* t6 in Figure 12.10 */
 162         const int t6_w = 0;             /* t6 in Figure 12.11 */
 163         const int t7_w = 15;            /* t7 in Figure 12.11 */
 164         const int t15 = 12;             /* t15 in Figure 12.2 */
 165         const int t20 = 185;            /* t20 in Figure 12.2 */
 166
 167         memset(&t, 0, sizeof(t));
 168
 169         t.cs_on = t15;
 170         t.cs_rd_off = t3 + t2_r + t5_r; /* Figure 12.10 */
 171         t.cs_wr_off = t3 + t2_w + t6_w; /* Figure 12.11 */
 172         t.adv_on = t3;                  /* Figure 12.10 */
 173         t.adv_rd_off = t3 + t2_r;       /* Figure 12.10 */
 174         t.adv_wr_off = t3 + t2_w;       /* Figure 12.11 */
 175         t.oe_off = t3 + t2_r + t5_r;    /* Figure 12.10 */
 176         t.oe_on = t.oe_off - t6_r;      /* Figure 12.10 */
 177         t.we_off = t3 + t2_w + t6_w;    /* Figure 12.11 */
 178         t.we_on = t.we_off - t7_w;      /* Figure 12.11 */
 179         t.rd_cycle = t20;               /* Figure 12.2 */
 180         t.wr_cycle = t20;               /* Figure 12.4 */
 181         t.access = t3 + t2_r + t5_r;    /* Figure 12.10 */
 182         t.wr_access = t3 + t2_w + t6_w; /* Figure 12.11 */
 183
 184         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, GPMC_CONFIG1_DEVICESIZE_16);
 185
 186         return gpmc_cs_set_timings(cs, &t);
 187 }
 188
 189 static void __init rx51_init_smc91x(void)
 190 {
 191         unsigned long cs_mem_base;
 192         int ret;
 193
 194         omap_cfg_reg(U8_34XX_GPIO54_DOWN);
 195         omap_cfg_reg(G25_34XX_GPIO86_OUT);
 196         omap_cfg_reg(H19_34XX_GPIO164_OUT);
 197
 198         if (gpmc_cs_request(SMC91X_CS, SZ_16M, &cs_mem_base) < 0) {
 199                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 200                 return;
 201         }
 202
 203         rx51_smc91x_resources[0].start = cs_mem_base + 0x300;
 204         rx51_smc91x_resources[0].end = cs_mem_base + 0x30f;
 205
 206         smc91x_init_gpmc(SMC91X_CS);
 207
 208         if (gpio_request(SMC91X_GPIO_IRQ, "SMC91X irq") < 0)
 209                 goto free1;
 210
 211         gpio_direction_input(SMC91X_GPIO_IRQ);
 212         rx51_smc91x_resources[1].start = gpio_to_irq(SMC91X_GPIO_IRQ);
 213
 214         ret = gpio_request(SMC91X_GPIO_PWRDWN, "SMC91X powerdown");
 215         if (ret)
 216                 goto free2;
 217         gpio_direction_output(SMC91X_GPIO_PWRDWN, 0);
 218
 219         ret = gpio_request(SMC91X_GPIO_RESET, "SMC91X reset");
 220         if (ret)
 221                 goto free3;
 222         gpio_direction_output(SMC91X_GPIO_RESET, 0);
 223         gpio_set_value(SMC91X_GPIO_RESET, 1);
 224         msleep(100);
 225         gpio_set_value(SMC91X_GPIO_RESET, 0);
 226
 227         return;
 228
 229 free3:
 230         gpio_free(SMC91X_GPIO_PWRDWN);
 231 free2:
 232         gpio_free(SMC91X_GPIO_IRQ);
 233 free1:
 234         gpmc_cs_free(SMC91X_CS);
 235
 236         printk(KERN_ERR "Could not initialize smc91x\n");
 237 }
 238
 239 static void __init rx51_init_tsc2005(void)
 240 {
 241         int r;
 242
 243         r = gpio_request(RX51_TSC2005_IRQ_GPIO, "tsc2005 DAV IRQ");
 244         if (r >= 0) {
 245                 gpio_direction_input(RX51_TSC2005_IRQ_GPIO);
 246         } else {
 247                 printk(KERN_ERR "unable to get DAV GPIO");
 248         }
 249 }
 250
 251 static struct twl4030_madc_platform_data rx51_madc_data = {
 252         .irq_line               = 1,
 253 };
 254
 255 static struct twl4030_hsmmc_info mmc[] = {
 256         {
 257                 .name           = "external",
 258                 .mmc            = 1,
 259                 .wires          = 4,
 260                 .cover_only     = true,
 261                 .gpio_cd        = 160,
 262                 .gpio_wp        = -EINVAL,
 263         },
 264         {
 265                 .name           = "internal",
 266                 .mmc            = 2,
 267                 .wires          = 8,
 268                 .gpio_cd        = -EINVAL,
 269                 .gpio_wp        = -EINVAL,
 270         },
 271         {}      /* Terminator */
 272 };
 273
 274 static struct regulator_consumer_supply rx51_vmmc1_supply = {
 275         .supply                 = "vmmc",
 276 };
 277
 278 static struct regulator_consumer_supply rx51_vmmc2_supply = {
 279         .supply                 = "vmmc",
 280 };
 281
 282 static struct regulator_consumer_supply rx51_vsim_supply = {
 283         .supply                 = "vmmc_aux",
 284 };
 285
 286 static struct regulator_init_data rx51_vaux1 = {
 287         .constraints = {
 288                 .name                   = "V28",
 289                 .min_uV                 = 2800000,
 290                 .max_uV                 = 2800000,
 291                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 292                                         | REGULATOR_MODE_STANDBY,
 293                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 294                                         | REGULATOR_CHANGE_STATUS,
 295         },
 296 };
 297
 298 static struct regulator_init_data rx51_vaux2 = {
 299         .constraints = {
 300                 .name                   = "VCSI",
 301                 .min_uV                 = 1800000,
 302                 .max_uV                 = 1800000,
 303                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 304                                         | REGULATOR_MODE_STANDBY,
 305                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 306                                         | REGULATOR_CHANGE_STATUS,
 307         },
 308 };
 309
 310 /* VAUX3 - adds more power to VIO_18 rail */
 311 static struct regulator_init_data rx51_vaux3_cam = {
 312         .constraints = {
 313                 .name                   = "VCAM_DIG_18",
 314                 .min_uV                 = 1800000,
 315                 .max_uV                 = 1800000,
 316                 .apply_uV               = true,
 317                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 318                                         | REGULATOR_MODE_STANDBY,
 319                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 320                                         | REGULATOR_CHANGE_STATUS,
 321         },
 322 };
 323
 324 static struct regulator_init_data rx51_vaux3_mmc = {
 325         .constraints = {
 326                 .name                   = "VMMC2_30",
 327                 .min_uV                 = 2800000,
 328                 .max_uV                 = 3000000,
 329                 .apply_uV               = true,
 330                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 331                                         | REGULATOR_MODE_STANDBY,
 332                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 333                                         | REGULATOR_CHANGE_MODE
 334                                         | REGULATOR_CHANGE_STATUS,
 335         },
 336         .num_consumer_supplies  = 1,
 337         .consumer_supplies      = &rx51_vmmc2_supply,
 338 };
 339
 340 static struct regulator_init_data rx51_vaux4 = {
 341         .constraints = {
 342                 .name                   = "VCAM_ANA_28",
 343                 .min_uV                 = 2800000,
 344                 .max_uV                 = 2800000,
 345                 .apply_uV               = true,
 346                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 347                                         | REGULATOR_MODE_STANDBY,
 348                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 349                                         | REGULATOR_CHANGE_STATUS,
 350         },
 351 };
 352
 353 static struct regulator_init_data rx51_vmmc1 = {
 354         .constraints = {
 355                 .min_uV                 = 1850000,
 356                 .max_uV                 = 3150000,
 357                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 358                                         | REGULATOR_MODE_STANDBY,
 359                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 360                                         | REGULATOR_CHANGE_MODE
 361                                         | REGULATOR_CHANGE_STATUS,
 362         },
 363         .num_consumer_supplies  = 1,
 364         .consumer_supplies      = &rx51_vmmc1_supply,
 365 };
 366
 367 static struct regulator_init_data rx51_vmmc2 = {
 368         .constraints = {
 369                 .name                   = "VMMC2_30",
 370                 .min_uV                 = 1850000,
 371                 .max_uV                 = 3150000,
 372                 .apply_uV               = true,
 373                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 374                                         | REGULATOR_MODE_STANDBY,
 375                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 376                                         | REGULATOR_CHANGE_MODE
 377                                         | REGULATOR_CHANGE_STATUS,
 378         },
 379         .num_consumer_supplies  = 1,
 380         .consumer_supplies      = &rx51_vmmc2_supply,
 381 };
 382
 383 static struct regulator_init_data rx51_vsim = {
 384         .constraints = {
 385                 .name                   = "VMMC2_IO_18",
 386                 .min_uV                 = 1800000,
 387                 .max_uV                 = 1800000,
 388                 .apply_uV               = true,
 389                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 390                                         | REGULATOR_MODE_STANDBY,
 391                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 392                                         | REGULATOR_CHANGE_STATUS,
 393         },
 394         .num_consumer_supplies  = 1,
 395         .consumer_supplies      = &rx51_vsim_supply,
 396 };
 397
 398 static struct regulator_init_data rx51_vdac = {
 399         .constraints = {
 400                 .min_uV                 = 1800000,
 401                 .max_uV                 = 1800000,
 402                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 403                                         | REGULATOR_MODE_STANDBY,
 404                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 405                                         | REGULATOR_CHANGE_MODE
 406                                         | REGULATOR_CHANGE_STATUS,
 407         },
 408 };
 409
 410 static int rx51_twlgpio_setup(struct device *dev, unsigned gpio, unsigned n)
 411 {
 412         /* FIXME this gpio setup is just a placeholder for now */
 413         gpio_request(gpio + 6, "backlight_pwm");
 414         gpio_direction_output(gpio + 6, 0);
 415         gpio_request(gpio + 7, "speaker_en");
 416         gpio_direction_output(gpio + 7, 1);
 417
 418         /* set up MMC adapters, linking their regulators to them */
 419         twl4030_mmc_init(mmc);
 420         rx51_vmmc1_supply.dev = mmc[0].dev;
 421         rx51_vmmc2_supply.dev = mmc[1].dev;
 422         rx51_vsim_supply.dev = mmc[1].dev;
 423
 424         return 0;
 425 }
 426
 427 static struct twl4030_gpio_platform_data rx51_gpio_data = {
 428         .gpio_base              = OMAP_MAX_GPIO_LINES,
 429         .irq_base               = TWL4030_GPIO_IRQ_BASE,
 430         .irq_end                = TWL4030_GPIO_IRQ_END,
 431         .pulldowns              = BIT(0) | BIT(1) | BIT(2) | BIT(3)
 432                                 | BIT(4) | BIT(5)
 433                                 | BIT(8) | BIT(9) | BIT(10) | BIT(11)
 434                                 | BIT(12) | BIT(13) | BIT(14) | BIT(15)
 435                                 | BIT(16) | BIT(17) ,
 436         .setup                  = rx51_twlgpio_setup,
 437 };
 438
 439 static struct twl4030_platform_data rx51_twldata = {
 440         .irq_base               = TWL4030_IRQ_BASE,
 441         .irq_end                = TWL4030_IRQ_END,
 442
 443         /* platform_data for children goes here */
 444         .gpio                   = &rx51_gpio_data,
 445         .keypad                 = &rx51_kp_data,
 446         .madc                   = &rx51_madc_data,
 447
 448         .vaux1                  = &rx51_vaux1,
 449         .vaux2                  = &rx51_vaux2,
 450         .vaux4                  = &rx51_vaux4,
 451         .vmmc1                  = &rx51_vmmc1,
 452         .vsim                   = &rx51_vsim,
 453         .vdac                   = &rx51_vdac,
 454 };
 455
 456 static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_1[] = {
 457         {
 458                 I2C_BOARD_INFO("twl5030", 0x48),
 459                 .flags = I2C_CLIENT_WAKE,
 460                 .irq = INT_34XX_SYS_NIRQ,
 461                 .platform_data = &rx51_twldata,
 462         },
 463 };
 464
 465 static int __init rx51_i2c_init(void)
 466 {
 467         if ((system_rev >= SYSTEM_REV_S_USES_VAUX3 && system_rev < 0x100) ||
 468             system_rev >= SYSTEM_REV_B_USES_VAUX3)
 469                 rx51_twldata.vaux3 = &rx51_vaux3_mmc;
 470         else {
 471                 rx51_twldata.vaux3 = &rx51_vaux3_cam;
 472                 rx51_twldata.vmmc2 = &rx51_vmmc2;
 473         }
 474         omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1,
 475                         ARRAY_SIZE(rx51_peripherals_i2c_board_info_1));
 476         omap_register_i2c_bus(2, 100, NULL, 0);
 477         omap_register_i2c_bus(3, 400, NULL, 0);
 478         return 0;
 479 }
 480
 481
 482 void __init rx51_peripherals_init(void)
 483 {
 484         platform_add_devices(rx51_peripherals_devices,
 485                                 ARRAY_SIZE(rx51_peripherals_devices));
 486         spi_register_board_info(rx51_peripherals_spi_board_info,
 487                                 ARRAY_SIZE(rx51_peripherals_spi_board_info));
 488         rx51_i2c_init();
 489         rx51_init_smc91x();
 490         rx51_init_tsc2005();
 491 }
 492