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