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/i2c.h>
  17 #include <linux/i2c/twl4030.h>
  18 #include <linux/clk.h>
  19 #include <linux/delay.h>
  20 #include <linux/regulator/machine.h>
  21 #include <linux/gpio.h>
  22
  23 #include <mach/mcspi.h>
  24 #include <mach/mux.h>
  25 #include <mach/board.h>
  26 #include <mach/common.h>
  27 #include <mach/dma.h>
  28 #include <mach/gpmc.h>
  29 #include <mach/keypad.h>
  30 #include <mach/onenand.h>
  31
  32 #include "mmc-twl4030.h"
  33
  34
  35 #define SMC91X_CS                       1
  36 #define SMC91X_GPIO_IRQ                 54
  37 #define SMC91X_GPIO_RESET               164
  38 #define SMC91X_GPIO_PWRDWN              86
  39
  40 static struct resource rx51_smc91x_resources[] = {
  41         [0] = {
  42                 .flags          = IORESOURCE_MEM,
  43         },
  44         [1] = {
  45                 .flags          = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  46         },
  47 };
  48
  49 static struct platform_device rx51_smc91x_device = {
  50         .name           = "smc91x",
  51         .id             = -1,
  52         .num_resources  = ARRAY_SIZE(rx51_smc91x_resources),
  53         .resource       = rx51_smc91x_resources,
  54 };
  55
  56 static int rx51_keymap[] = {
  57         KEY(0, 0, KEY_Q),
  58         KEY(0, 1, KEY_W),
  59         KEY(0, 2, KEY_E),
  60         KEY(0, 3, KEY_R),
  61         KEY(0, 4, KEY_T),
  62         KEY(0, 5, KEY_Y),
  63         KEY(0, 6, KEY_U),
  64         KEY(0, 7, KEY_I),
  65         KEY(1, 0, KEY_O),
  66         KEY(1, 1, KEY_D),
  67         KEY(1, 2, KEY_DOT),
  68         KEY(1, 3, KEY_V),
  69         KEY(1, 4, KEY_DOWN),
  70         KEY(2, 0, KEY_P),
  71         KEY(2, 1, KEY_F),
  72         KEY(2, 2, KEY_UP),
  73         KEY(2, 3, KEY_B),
  74         KEY(2, 4, KEY_RIGHT),
  75         KEY(3, 0, KEY_COMMA),
  76         KEY(3, 1, KEY_G),
  77         KEY(3, 2, KEY_ENTER),
  78         KEY(3, 3, KEY_N),
  79         KEY(4, 0, KEY_BACKSPACE),
  80         KEY(4, 1, KEY_H),
  81         KEY(4, 3, KEY_M),
  82         KEY(4, 4, KEY_LEFTCTRL),
  83         KEY(5, 1, KEY_J),
  84         KEY(5, 2, KEY_Z),
  85         KEY(5, 3, KEY_SPACE),
  86         KEY(5, 4, KEY_LEFTSHIFT),
  87         KEY(6, 0, KEY_A),
  88         KEY(6, 1, KEY_K),
  89         KEY(6, 2, KEY_X),
  90         KEY(6, 3, KEY_SPACE),
  91         KEY(6, 4, KEY_FN),
  92         KEY(7, 0, KEY_S),
  93         KEY(7, 1, KEY_L),
  94         KEY(7, 2, KEY_C),
  95         KEY(7, 3, KEY_LEFT),
  96         KEY(0xff, 0, KEY_F6),
  97         KEY(0xff, 1, KEY_F7),
  98         KEY(0xff, 2, KEY_F8),
  99         KEY(0xff, 4, KEY_F9),
 100         KEY(0xff, 5, KEY_F10),
 101 };
 102
 103 static struct twl4030_keypad_data rx51_kp_data = {
 104         .rows           = 8,
 105         .cols           = 8,
 106         .keymap         = rx51_keymap,
 107         .keymapsize     = ARRAY_SIZE(rx51_keymap),
 108         .rep            = 1,
 109 };
 110
 111 static struct platform_device *rx51_peripherals_devices[] = {
 112         &rx51_smc91x_device,
 113 };
 114
 115 /*
 116  * Timings are taken from smsc-lan91c96-ms.pdf
 117  */
 118 static int smc91x_init_gpmc(int cs)
 119 {
 120         struct gpmc_timings t;
 121         const int t2_r = 45;            /* t2 in Figure 12.10 */
 122         const int t2_w = 30;            /* t2 in Figure 12.11 */
 123         const int t3 = 15;              /* t3 in Figure 12.10 */
 124         const int t5_r = 0;             /* t5 in Figure 12.10 */
 125         const int t6_r = 45;            /* t6 in Figure 12.10 */
 126         const int t6_w = 0;             /* t6 in Figure 12.11 */
 127         const int t7_w = 15;            /* t7 in Figure 12.11 */
 128         const int t15 = 12;             /* t15 in Figure 12.2 */
 129         const int t20 = 185;            /* t20 in Figure 12.2 */
 130
 131         memset(&t, 0, sizeof(t));
 132
 133         t.cs_on = t15;
 134         t.cs_rd_off = t3 + t2_r + t5_r; /* Figure 12.10 */
 135         t.cs_wr_off = t3 + t2_w + t6_w; /* Figure 12.11 */
 136         t.adv_on = t3;                  /* Figure 12.10 */
 137         t.adv_rd_off = t3 + t2_r;       /* Figure 12.10 */
 138         t.adv_wr_off = t3 + t2_w;       /* Figure 12.11 */
 139         t.oe_off = t3 + t2_r + t5_r;    /* Figure 12.10 */
 140         t.oe_on = t.oe_off - t6_r;      /* Figure 12.10 */
 141         t.we_off = t3 + t2_w + t6_w;    /* Figure 12.11 */
 142         t.we_on = t.we_off - t7_w;      /* Figure 12.11 */
 143         t.rd_cycle = t20;               /* Figure 12.2 */
 144         t.wr_cycle = t20;               /* Figure 12.4 */
 145         t.access = t3 + t2_r + t5_r;    /* Figure 12.10 */
 146         t.wr_access = t3 + t2_w + t6_w; /* Figure 12.11 */
 147
 148         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, GPMC_CONFIG1_DEVICESIZE_16);
 149
 150         return gpmc_cs_set_timings(cs, &t);
 151 }
 152
 153 static void __init rx51_init_smc91x(void)
 154 {
 155         unsigned long cs_mem_base;
 156         int ret;
 157
 158         omap_cfg_reg(U8_34XX_GPIO54_DOWN);
 159         omap_cfg_reg(G25_34XX_GPIO86_OUT);
 160         omap_cfg_reg(H19_34XX_GPIO164_OUT);
 161
 162         if (gpmc_cs_request(SMC91X_CS, SZ_16M, &cs_mem_base) < 0) {
 163                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 164                 return;
 165         }
 166
 167         rx51_smc91x_resources[0].start = cs_mem_base + 0x300;
 168         rx51_smc91x_resources[0].end = cs_mem_base + 0x30f;
 169
 170         smc91x_init_gpmc(SMC91X_CS);
 171
 172         if (gpio_request(SMC91X_GPIO_IRQ, "SMC91X irq") < 0)
 173                 goto free1;
 174
 175         gpio_direction_input(SMC91X_GPIO_IRQ);
 176         rx51_smc91x_resources[1].start = gpio_to_irq(SMC91X_GPIO_IRQ);
 177
 178         ret = gpio_request(SMC91X_GPIO_PWRDWN, "SMC91X powerdown");
 179         if (ret)
 180                 goto free2;
 181         gpio_direction_output(SMC91X_GPIO_PWRDWN, 0);
 182
 183         ret = gpio_request(SMC91X_GPIO_RESET, "SMC91X reset");
 184         if (ret)
 185                 goto free3;
 186         gpio_direction_output(SMC91X_GPIO_RESET, 0);
 187         gpio_set_value(SMC91X_GPIO_RESET, 1);
 188         msleep(100);
 189         gpio_set_value(SMC91X_GPIO_RESET, 0);
 190
 191         return;
 192
 193 free3:
 194         gpio_free(SMC91X_GPIO_PWRDWN);
 195 free2:
 196         gpio_free(SMC91X_GPIO_IRQ);
 197 free1:
 198         gpmc_cs_free(SMC91X_CS);
 199
 200         printk(KERN_ERR "Could not initialize smc91x\n");
 201 }
 202
 203 static struct twl4030_madc_platform_data rx51_madc_data = {
 204         .irq_line               = 1,
 205 };
 206
 207 static struct twl4030_hsmmc_info mmc[] = {
 208         {
 209                 .name           = "external",
 210                 .mmc            = 1,
 211                 .wires          = 4,
 212                 .cover_only     = true,
 213                 .gpio_cd        = 160,
 214                 .gpio_wp        = -EINVAL,
 215         },
 216         {
 217                 .name           = "internal",
 218                 .mmc            = 2,
 219                 .wires          = 8,
 220                 .gpio_cd        = -EINVAL,
 221                 .gpio_wp        = -EINVAL,
 222         },
 223         {}      /* Terminator */
 224 };
 225
 226 static struct regulator_consumer_supply rx51_vmmc1_supply = {
 227         .supply                 = "vmmc",
 228 };
 229
 230 static struct regulator_consumer_supply rx51_vmmc2_supply = {
 231         .supply                 = "vmmc",
 232 };
 233
 234 static struct regulator_consumer_supply rx51_vsim_supply = {
 235         .supply                 = "vmmc_aux",
 236 };
 237
 238 static struct regulator_init_data rx51_vaux1 = {
 239         .constraints = {
 240                 .name                   = "V28",
 241                 .min_uV                 = 2800000,
 242                 .max_uV                 = 2800000,
 243                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 244                                         | REGULATOR_MODE_STANDBY,
 245                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 246                                         | REGULATOR_CHANGE_STATUS,
 247         },
 248 };
 249
 250 static struct regulator_init_data rx51_vaux2 = {
 251         .constraints = {
 252                 .name                   = "VCSI",
 253                 .min_uV                 = 1800000,
 254                 .max_uV                 = 1800000,
 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 /* VAUX3 - adds more power to VIO_18 rail */
 263 static struct regulator_init_data rx51_vaux3 = {
 264         .constraints = {
 265                 .name                   = "VCAM_DIG_18",
 266                 .min_uV                 = 1800000,
 267                 .max_uV                 = 1800000,
 268                 .apply_uV               = true,
 269                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 270                                         | REGULATOR_MODE_STANDBY,
 271                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 272                                         | REGULATOR_CHANGE_STATUS,
 273         },
 274 };
 275
 276 static struct regulator_init_data rx51_vaux4 = {
 277         .constraints = {
 278                 .name                   = "VCAM_ANA_28",
 279                 .min_uV                 = 2800000,
 280                 .max_uV                 = 2800000,
 281                 .apply_uV               = true,
 282                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 283                                         | REGULATOR_MODE_STANDBY,
 284                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 285                                         | REGULATOR_CHANGE_STATUS,
 286         },
 287 };
 288
 289 static struct regulator_init_data rx51_vmmc1 = {
 290         .constraints = {
 291                 .min_uV                 = 1850000,
 292                 .max_uV                 = 3150000,
 293                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 294                                         | REGULATOR_MODE_STANDBY,
 295                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 296                                         | REGULATOR_CHANGE_MODE
 297                                         | REGULATOR_CHANGE_STATUS,
 298         },
 299         .num_consumer_supplies  = 1,
 300         .consumer_supplies      = &rx51_vmmc1_supply,
 301 };
 302
 303 static struct regulator_init_data rx51_vmmc2 = {
 304         .constraints = {
 305                 .name                   = "VMMC2_30",
 306                 .min_uV                 = 1850000,
 307                 .max_uV                 = 3150000,
 308                 .apply_uV               = true,
 309                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 310                                         | REGULATOR_MODE_STANDBY,
 311                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 312                                         | REGULATOR_CHANGE_MODE
 313                                         | REGULATOR_CHANGE_STATUS,
 314         },
 315         .num_consumer_supplies  = 1,
 316         .consumer_supplies      = &rx51_vmmc2_supply,
 317 };
 318
 319 static struct regulator_init_data rx51_vsim = {
 320         .constraints = {
 321                 .name                   = "VMMC2_IO_18",
 322                 .min_uV                 = 1800000,
 323                 .max_uV                 = 1800000,
 324                 .apply_uV               = true,
 325                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 326                                         | REGULATOR_MODE_STANDBY,
 327                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 328                                         | REGULATOR_CHANGE_STATUS,
 329         },
 330         .num_consumer_supplies  = 1,
 331         .consumer_supplies      = &rx51_vsim_supply,
 332 };
 333
 334 static struct regulator_init_data rx51_vdac = {
 335         .constraints = {
 336                 .min_uV                 = 1800000,
 337                 .max_uV                 = 1800000,
 338                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 339                                         | REGULATOR_MODE_STANDBY,
 340                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 341                                         | REGULATOR_CHANGE_MODE
 342                                         | REGULATOR_CHANGE_STATUS,
 343         },
 344 };
 345
 346 static int rx51_twlgpio_setup(struct device *dev, unsigned gpio, unsigned n)
 347 {
 348         /* FIXME this gpio setup is just a placeholder for now */
 349         gpio_request(gpio + 6, "backlight_pwm");
 350         gpio_direction_output(gpio + 6, 0);
 351         gpio_request(gpio + 7, "speaker_en");
 352         gpio_direction_output(gpio + 7, 1);
 353
 354         /* set up MMC adapters, linking their regulators to them */
 355         twl4030_mmc_init(mmc);
 356         rx51_vmmc1_supply.dev = mmc[0].dev;
 357         rx51_vmmc2_supply.dev = mmc[1].dev;
 358         rx51_vsim_supply.dev = mmc[1].dev;
 359
 360         return 0;
 361 }
 362
 363 static struct twl4030_gpio_platform_data rx51_gpio_data = {
 364         .gpio_base              = OMAP_MAX_GPIO_LINES,
 365         .irq_base               = TWL4030_GPIO_IRQ_BASE,
 366         .irq_end                = TWL4030_GPIO_IRQ_END,
 367         .pulldowns              = BIT(0) | BIT(1) | BIT(2) | BIT(3)
 368                                 | BIT(4) | BIT(5)
 369                                 | BIT(8) | BIT(9) | BIT(10) | BIT(11)
 370                                 | BIT(12) | BIT(13) | BIT(14) | BIT(15)
 371                                 | BIT(16) | BIT(17) ,
 372         .setup                  = rx51_twlgpio_setup,
 373 };
 374
 375 static struct twl4030_platform_data rx51_twldata = {
 376         .irq_base               = TWL4030_IRQ_BASE,
 377         .irq_end                = TWL4030_IRQ_END,
 378
 379         /* platform_data for children goes here */
 380         .gpio                   = &rx51_gpio_data,
 381         .keypad                 = &rx51_kp_data,
 382         .madc                   = &rx51_madc_data,
 383
 384         .vaux1                  = &rx51_vaux1,
 385         .vaux2                  = &rx51_vaux2,
 386         .vaux3                  = &rx51_vaux3,
 387         .vaux4                  = &rx51_vaux4,
 388         .vmmc1                  = &rx51_vmmc1,
 389         .vmmc2                  = &rx51_vmmc2,
 390         .vsim                   = &rx51_vsim,
 391         .vdac                   = &rx51_vdac,
 392 };
 393
 394 static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_1[] = {
 395         {
 396                 I2C_BOARD_INFO("twl5030", 0x48),
 397                 .flags = I2C_CLIENT_WAKE,
 398                 .irq = INT_34XX_SYS_NIRQ,
 399                 .platform_data = &rx51_twldata,
 400         },
 401 };
 402
 403 static int __init rx51_i2c_init(void)
 404 {
 405         omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1,
 406                         ARRAY_SIZE(rx51_peripherals_i2c_board_info_1));
 407         omap_register_i2c_bus(2, 100, NULL, 0);
 408         omap_register_i2c_bus(3, 400, NULL, 0);
 409         return 0;
 410 }
 411
 412 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
 413         defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
 414
 415 static struct mtd_partition onenand_partitions[] = {
 416         {
 417                 .name           = "bootloader",
 418                 .offset         = 0,
 419                 .size           = 0x20000,
 420                 .mask_flags     = MTD_WRITEABLE,        /* Force read-only */
 421         },
 422         {
 423                 .name           = "config",
 424                 .offset         = MTDPART_OFS_APPEND,
 425                 .size           = 0x60000,
 426         },
 427         {
 428                 .name           = "log",
 429                 .offset         = MTDPART_OFS_APPEND,
 430                 .size           = 0x40000,
 431         },
 432         {
 433                 .name           = "kernel",
 434                 .offset         = MTDPART_OFS_APPEND,
 435                 .size           = 0x200000,
 436         },
 437         {
 438                 .name           = "initfs",
 439                 .offset         = MTDPART_OFS_APPEND,
 440                 .size           = 0x200000,
 441         },
 442         {
 443                 .name           = "rootfs",
 444                 .offset         = MTDPART_OFS_APPEND,
 445                 .size           = MTDPART_SIZ_FULL,
 446         },
 447 };
 448
 449 static struct omap_onenand_platform_data board_onenand_data = {
 450         .cs             = 0,
 451         .gpio_irq       = 65,
 452         .parts          = onenand_partitions,
 453         .nr_parts       = ARRAY_SIZE(onenand_partitions),
 454 };
 455
 456 static void __init board_onenand_init(void)
 457 {
 458         gpmc_onenand_init(&board_onenand_data);
 459 }
 460
 461 #else
 462
 463 static inline void board_onenand_init(void)
 464 {
 465 }
 466
 467 #endif
 468
 469 void __init rx51_peripherals_init(void)
 470 {
 471         platform_add_devices(rx51_peripherals_devices,
 472                                 ARRAY_SIZE(rx51_peripherals_devices));
 473         rx51_i2c_init();
 474         rx51_init_smc91x();
 475         board_onenand_init();
 476 }
 477