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
  34 #define SMC91X_CS                       1
  35 #define SMC91X_GPIO_IRQ                 54
  36 #define SMC91X_GPIO_RESET               164
  37 #define SMC91X_GPIO_PWRDWN              86
  38
  39 #define RX51_TSC2005_RESET_GPIO         104
  40 #define RX51_TSC2005_IRQ_GPIO           100
  41
  42 static struct resource rx51_smc91x_resources[] = {
  43         [0] = {
  44                 .flags          = IORESOURCE_MEM,
  45         },
  46         [1] = {
  47                 .flags          = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  48         },
  49 };
  50
  51 static struct platform_device rx51_smc91x_device = {
  52         .name           = "smc91x",
  53         .id             = -1,
  54         .num_resources  = ARRAY_SIZE(rx51_smc91x_resources),
  55         .resource       = rx51_smc91x_resources,
  56 };
  57
  58 static struct tsc2005_platform_data tsc2005_config = {
  59         .reset_gpio             = RX51_TSC2005_RESET_GPIO, /* not used */
  60
  61         .ts_x_plate_ohm         = 280,
  62         .ts_hw_avg              = 0,
  63         .ts_touch_pressure      = 1500,
  64         .ts_stab_time           = 1000,
  65         .ts_pressure_max        = 2048,
  66         .ts_pressure_fudge      = 2,
  67         .ts_x_max               = 4096,
  68         .ts_x_fudge             = 4,
  69         .ts_y_max               = 4096,
  70         .ts_y_fudge             = 7,
  71 };
  72
  73 static struct omap2_mcspi_device_config tsc2005_mcspi_config = {
  74         .turbo_mode     = 0,
  75         .single_channel = 1,
  76 };
  77
  78 static struct spi_board_info rx51_peripherals_spi_board_info[] = {
  79         [0] = {
  80                 .modalias               = "tsc2005",
  81                 .bus_num                = 1,
  82                 .chip_select            = 0,
  83                 .irq                    = OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO),
  84                 .max_speed_hz           = 6000000,
  85                 .controller_data        = &tsc2005_mcspi_config,
  86                 .platform_data          = &tsc2005_config,
  87         },
  88 };
  89
  90 static int rx51_keymap[] = {
  91         KEY(0, 0, KEY_Q),
  92         KEY(0, 1, KEY_W),
  93         KEY(0, 2, KEY_E),
  94         KEY(0, 3, KEY_R),
  95         KEY(0, 4, KEY_T),
  96         KEY(0, 5, KEY_Y),
  97         KEY(0, 6, KEY_U),
  98         KEY(0, 7, KEY_I),
  99         KEY(1, 0, KEY_O),
 100         KEY(1, 1, KEY_D),
 101         KEY(1, 2, KEY_DOT),
 102         KEY(1, 3, KEY_V),
 103         KEY(1, 4, KEY_DOWN),
 104         KEY(2, 0, KEY_P),
 105         KEY(2, 1, KEY_F),
 106         KEY(2, 2, KEY_UP),
 107         KEY(2, 3, KEY_B),
 108         KEY(2, 4, KEY_RIGHT),
 109         KEY(3, 0, KEY_COMMA),
 110         KEY(3, 1, KEY_G),
 111         KEY(3, 2, KEY_ENTER),
 112         KEY(3, 3, KEY_N),
 113         KEY(4, 0, KEY_BACKSPACE),
 114         KEY(4, 1, KEY_H),
 115         KEY(4, 3, KEY_M),
 116         KEY(4, 4, KEY_LEFTCTRL),
 117         KEY(5, 1, KEY_J),
 118         KEY(5, 2, KEY_Z),
 119         KEY(5, 3, KEY_SPACE),
 120         KEY(5, 4, KEY_LEFTSHIFT),
 121         KEY(6, 0, KEY_A),
 122         KEY(6, 1, KEY_K),
 123         KEY(6, 2, KEY_X),
 124         KEY(6, 3, KEY_SPACE),
 125         KEY(6, 4, KEY_FN),
 126         KEY(7, 0, KEY_S),
 127         KEY(7, 1, KEY_L),
 128         KEY(7, 2, KEY_C),
 129         KEY(7, 3, KEY_LEFT),
 130         KEY(0xff, 0, KEY_F6),
 131         KEY(0xff, 1, KEY_F7),
 132         KEY(0xff, 2, KEY_F8),
 133         KEY(0xff, 4, KEY_F9),
 134         KEY(0xff, 5, KEY_F10),
 135 };
 136
 137 static struct twl4030_keypad_data rx51_kp_data = {
 138         .rows           = 8,
 139         .cols           = 8,
 140         .keymap         = rx51_keymap,
 141         .keymapsize     = ARRAY_SIZE(rx51_keymap),
 142         .rep            = 1,
 143 };
 144
 145 static struct platform_device *rx51_peripherals_devices[] = {
 146         &rx51_smc91x_device,
 147 };
 148
 149 /*
 150  * Timings are taken from smsc-lan91c96-ms.pdf
 151  */
 152 static int smc91x_init_gpmc(int cs)
 153 {
 154         struct gpmc_timings t;
 155         const int t2_r = 45;            /* t2 in Figure 12.10 */
 156         const int t2_w = 30;            /* t2 in Figure 12.11 */
 157         const int t3 = 15;              /* t3 in Figure 12.10 */
 158         const int t5_r = 0;             /* t5 in Figure 12.10 */
 159         const int t6_r = 45;            /* t6 in Figure 12.10 */
 160         const int t6_w = 0;             /* t6 in Figure 12.11 */
 161         const int t7_w = 15;            /* t7 in Figure 12.11 */
 162         const int t15 = 12;             /* t15 in Figure 12.2 */
 163         const int t20 = 185;            /* t20 in Figure 12.2 */
 164
 165         memset(&t, 0, sizeof(t));
 166
 167         t.cs_on = t15;
 168         t.cs_rd_off = t3 + t2_r + t5_r; /* Figure 12.10 */
 169         t.cs_wr_off = t3 + t2_w + t6_w; /* Figure 12.11 */
 170         t.adv_on = t3;                  /* Figure 12.10 */
 171         t.adv_rd_off = t3 + t2_r;       /* Figure 12.10 */
 172         t.adv_wr_off = t3 + t2_w;       /* Figure 12.11 */
 173         t.oe_off = t3 + t2_r + t5_r;    /* Figure 12.10 */
 174         t.oe_on = t.oe_off - t6_r;      /* Figure 12.10 */
 175         t.we_off = t3 + t2_w + t6_w;    /* Figure 12.11 */
 176         t.we_on = t.we_off - t7_w;      /* Figure 12.11 */
 177         t.rd_cycle = t20;               /* Figure 12.2 */
 178         t.wr_cycle = t20;               /* Figure 12.4 */
 179         t.access = t3 + t2_r + t5_r;    /* Figure 12.10 */
 180         t.wr_access = t3 + t2_w + t6_w; /* Figure 12.11 */
 181
 182         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, GPMC_CONFIG1_DEVICESIZE_16);
 183
 184         return gpmc_cs_set_timings(cs, &t);
 185 }
 186
 187 static void __init rx51_init_smc91x(void)
 188 {
 189         unsigned long cs_mem_base;
 190         int ret;
 191
 192         omap_cfg_reg(U8_34XX_GPIO54_DOWN);
 193         omap_cfg_reg(G25_34XX_GPIO86_OUT);
 194         omap_cfg_reg(H19_34XX_GPIO164_OUT);
 195
 196         if (gpmc_cs_request(SMC91X_CS, SZ_16M, &cs_mem_base) < 0) {
 197                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 198                 return;
 199         }
 200
 201         rx51_smc91x_resources[0].start = cs_mem_base + 0x300;
 202         rx51_smc91x_resources[0].end = cs_mem_base + 0x30f;
 203
 204         smc91x_init_gpmc(SMC91X_CS);
 205
 206         if (gpio_request(SMC91X_GPIO_IRQ, "SMC91X irq") < 0)
 207                 goto free1;
 208
 209         gpio_direction_input(SMC91X_GPIO_IRQ);
 210         rx51_smc91x_resources[1].start = gpio_to_irq(SMC91X_GPIO_IRQ);
 211
 212         ret = gpio_request(SMC91X_GPIO_PWRDWN, "SMC91X powerdown");
 213         if (ret)
 214                 goto free2;
 215         gpio_direction_output(SMC91X_GPIO_PWRDWN, 0);
 216
 217         ret = gpio_request(SMC91X_GPIO_RESET, "SMC91X reset");
 218         if (ret)
 219                 goto free3;
 220         gpio_direction_output(SMC91X_GPIO_RESET, 0);
 221         gpio_set_value(SMC91X_GPIO_RESET, 1);
 222         msleep(100);
 223         gpio_set_value(SMC91X_GPIO_RESET, 0);
 224
 225         return;
 226
 227 free3:
 228         gpio_free(SMC91X_GPIO_PWRDWN);
 229 free2:
 230         gpio_free(SMC91X_GPIO_IRQ);
 231 free1:
 232         gpmc_cs_free(SMC91X_CS);
 233
 234         printk(KERN_ERR "Could not initialize smc91x\n");
 235 }
 236
 237 static void __init rx51_init_tsc2005(void)
 238 {
 239         int r;
 240
 241         r = gpio_request(RX51_TSC2005_IRQ_GPIO, "tsc2005 DAV IRQ");
 242         if (r >= 0) {
 243                 gpio_direction_input(RX51_TSC2005_IRQ_GPIO);
 244         } else {
 245                 printk(KERN_ERR "unable to get DAV GPIO");
 246         }
 247 }
 248
 249 static struct twl4030_madc_platform_data rx51_madc_data = {
 250         .irq_line               = 1,
 251 };
 252
 253 static struct twl4030_hsmmc_info mmc[] = {
 254         {
 255                 .name           = "external",
 256                 .mmc            = 1,
 257                 .wires          = 4,
 258                 .cover_only     = true,
 259                 .gpio_cd        = 160,
 260                 .gpio_wp        = -EINVAL,
 261         },
 262         {
 263                 .name           = "internal",
 264                 .mmc            = 2,
 265                 .wires          = 8,
 266                 .gpio_cd        = -EINVAL,
 267                 .gpio_wp        = -EINVAL,
 268         },
 269         {}      /* Terminator */
 270 };
 271
 272 static struct regulator_consumer_supply rx51_vmmc1_supply = {
 273         .supply                 = "vmmc",
 274 };
 275
 276 static struct regulator_consumer_supply rx51_vmmc2_supply = {
 277         .supply                 = "vmmc",
 278 };
 279
 280 static struct regulator_consumer_supply rx51_vsim_supply = {
 281         .supply                 = "vmmc_aux",
 282 };
 283
 284 static struct regulator_init_data rx51_vaux1 = {
 285         .constraints = {
 286                 .name                   = "V28",
 287                 .min_uV                 = 2800000,
 288                 .max_uV                 = 2800000,
 289                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 290                                         | REGULATOR_MODE_STANDBY,
 291                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 292                                         | REGULATOR_CHANGE_STATUS,
 293         },
 294 };
 295
 296 static struct regulator_init_data rx51_vaux2 = {
 297         .constraints = {
 298                 .name                   = "VCSI",
 299                 .min_uV                 = 1800000,
 300                 .max_uV                 = 1800000,
 301                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 302                                         | REGULATOR_MODE_STANDBY,
 303                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 304                                         | REGULATOR_CHANGE_STATUS,
 305         },
 306 };
 307
 308 /* VAUX3 - adds more power to VIO_18 rail */
 309 static struct regulator_init_data rx51_vaux3 = {
 310         .constraints = {
 311                 .name                   = "VCAM_DIG_18",
 312                 .min_uV                 = 1800000,
 313                 .max_uV                 = 1800000,
 314                 .apply_uV               = true,
 315                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 316                                         | REGULATOR_MODE_STANDBY,
 317                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 318                                         | REGULATOR_CHANGE_STATUS,
 319         },
 320 };
 321
 322 static struct regulator_init_data rx51_vaux4 = {
 323         .constraints = {
 324                 .name                   = "VCAM_ANA_28",
 325                 .min_uV                 = 2800000,
 326                 .max_uV                 = 2800000,
 327                 .apply_uV               = true,
 328                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 329                                         | REGULATOR_MODE_STANDBY,
 330                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 331                                         | REGULATOR_CHANGE_STATUS,
 332         },
 333 };
 334
 335 static struct regulator_init_data rx51_vmmc1 = {
 336         .constraints = {
 337                 .min_uV                 = 1850000,
 338                 .max_uV                 = 3150000,
 339                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 340                                         | REGULATOR_MODE_STANDBY,
 341                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 342                                         | REGULATOR_CHANGE_MODE
 343                                         | REGULATOR_CHANGE_STATUS,
 344         },
 345         .num_consumer_supplies  = 1,
 346         .consumer_supplies      = &rx51_vmmc1_supply,
 347 };
 348
 349 static struct regulator_init_data rx51_vmmc2 = {
 350         .constraints = {
 351                 .name                   = "VMMC2_30",
 352                 .min_uV                 = 1850000,
 353                 .max_uV                 = 3150000,
 354                 .apply_uV               = true,
 355                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 356                                         | REGULATOR_MODE_STANDBY,
 357                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 358                                         | REGULATOR_CHANGE_MODE
 359                                         | REGULATOR_CHANGE_STATUS,
 360         },
 361         .num_consumer_supplies  = 1,
 362         .consumer_supplies      = &rx51_vmmc2_supply,
 363 };
 364
 365 static struct regulator_init_data rx51_vsim = {
 366         .constraints = {
 367                 .name                   = "VMMC2_IO_18",
 368                 .min_uV                 = 1800000,
 369                 .max_uV                 = 1800000,
 370                 .apply_uV               = true,
 371                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 372                                         | REGULATOR_MODE_STANDBY,
 373                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 374                                         | REGULATOR_CHANGE_STATUS,
 375         },
 376         .num_consumer_supplies  = 1,
 377         .consumer_supplies      = &rx51_vsim_supply,
 378 };
 379
 380 static struct regulator_init_data rx51_vdac = {
 381         .constraints = {
 382                 .min_uV                 = 1800000,
 383                 .max_uV                 = 1800000,
 384                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 385                                         | REGULATOR_MODE_STANDBY,
 386                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 387                                         | REGULATOR_CHANGE_MODE
 388                                         | REGULATOR_CHANGE_STATUS,
 389         },
 390 };
 391
 392 static int rx51_twlgpio_setup(struct device *dev, unsigned gpio, unsigned n)
 393 {
 394         /* FIXME this gpio setup is just a placeholder for now */
 395         gpio_request(gpio + 6, "backlight_pwm");
 396         gpio_direction_output(gpio + 6, 0);
 397         gpio_request(gpio + 7, "speaker_en");
 398         gpio_direction_output(gpio + 7, 1);
 399
 400         /* set up MMC adapters, linking their regulators to them */
 401         twl4030_mmc_init(mmc);
 402         rx51_vmmc1_supply.dev = mmc[0].dev;
 403         rx51_vmmc2_supply.dev = mmc[1].dev;
 404         rx51_vsim_supply.dev = mmc[1].dev;
 405
 406         return 0;
 407 }
 408
 409 static struct twl4030_gpio_platform_data rx51_gpio_data = {
 410         .gpio_base              = OMAP_MAX_GPIO_LINES,
 411         .irq_base               = TWL4030_GPIO_IRQ_BASE,
 412         .irq_end                = TWL4030_GPIO_IRQ_END,
 413         .pulldowns              = BIT(0) | BIT(1) | BIT(2) | BIT(3)
 414                                 | BIT(4) | BIT(5)
 415                                 | BIT(8) | BIT(9) | BIT(10) | BIT(11)
 416                                 | BIT(12) | BIT(13) | BIT(14) | BIT(15)
 417                                 | BIT(16) | BIT(17) ,
 418         .setup                  = rx51_twlgpio_setup,
 419 };
 420
 421 static struct twl4030_platform_data rx51_twldata = {
 422         .irq_base               = TWL4030_IRQ_BASE,
 423         .irq_end                = TWL4030_IRQ_END,
 424
 425         /* platform_data for children goes here */
 426         .gpio                   = &rx51_gpio_data,
 427         .keypad                 = &rx51_kp_data,
 428         .madc                   = &rx51_madc_data,
 429
 430         .vaux1                  = &rx51_vaux1,
 431         .vaux2                  = &rx51_vaux2,
 432         .vaux3                  = &rx51_vaux3,
 433         .vaux4                  = &rx51_vaux4,
 434         .vmmc1                  = &rx51_vmmc1,
 435         .vmmc2                  = &rx51_vmmc2,
 436         .vsim                   = &rx51_vsim,
 437         .vdac                   = &rx51_vdac,
 438 };
 439
 440 static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_1[] = {
 441         {
 442                 I2C_BOARD_INFO("twl5030", 0x48),
 443                 .flags = I2C_CLIENT_WAKE,
 444                 .irq = INT_34XX_SYS_NIRQ,
 445                 .platform_data = &rx51_twldata,
 446         },
 447 };
 448
 449 static int __init rx51_i2c_init(void)
 450 {
 451         omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1,
 452                         ARRAY_SIZE(rx51_peripherals_i2c_board_info_1));
 453         omap_register_i2c_bus(2, 100, NULL, 0);
 454         omap_register_i2c_bus(3, 400, NULL, 0);
 455         return 0;
 456 }
 457
 458
 459 void __init rx51_peripherals_init(void)
 460 {
 461         platform_add_devices(rx51_peripherals_devices,
 462                                 ARRAY_SIZE(rx51_peripherals_devices));
 463         spi_register_board_info(rx51_peripherals_spi_board_info,
 464                                 ARRAY_SIZE(rx51_peripherals_spi_board_info));
 465         rx51_i2c_init();
 466         rx51_init_smc91x();
 467         rx51_init_tsc2005();
 468 }
 469