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
  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 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 int rx51_keymap[] = {
  56         KEY(0, 0, KEY_Q),
  57         KEY(0, 1, KEY_W),
  58         KEY(0, 2, KEY_E),
  59         KEY(0, 3, KEY_R),
  60         KEY(0, 4, KEY_T),
  61         KEY(0, 5, KEY_Y),
  62         KEY(0, 6, KEY_U),
  63         KEY(0, 7, KEY_I),
  64         KEY(1, 0, KEY_O),
  65         KEY(1, 1, KEY_D),
  66         KEY(1, 2, KEY_DOT),
  67         KEY(1, 3, KEY_V),
  68         KEY(1, 4, KEY_DOWN),
  69         KEY(2, 0, KEY_P),
  70         KEY(2, 1, KEY_F),
  71         KEY(2, 2, KEY_UP),
  72         KEY(2, 3, KEY_B),
  73         KEY(2, 4, KEY_RIGHT),
  74         KEY(3, 0, KEY_COMMA),
  75         KEY(3, 1, KEY_G),
  76         KEY(3, 2, KEY_ENTER),
  77         KEY(3, 3, KEY_N),
  78         KEY(4, 0, KEY_BACKSPACE),
  79         KEY(4, 1, KEY_H),
  80         KEY(4, 3, KEY_M),
  81         KEY(4, 4, KEY_LEFTCTRL),
  82         KEY(5, 1, KEY_J),
  83         KEY(5, 2, KEY_Z),
  84         KEY(5, 3, KEY_SPACE),
  85         KEY(5, 4, KEY_LEFTSHIFT),
  86         KEY(6, 0, KEY_A),
  87         KEY(6, 1, KEY_K),
  88         KEY(6, 2, KEY_X),
  89         KEY(6, 3, KEY_SPACE),
  90         KEY(6, 4, KEY_FN),
  91         KEY(7, 0, KEY_S),
  92         KEY(7, 1, KEY_L),
  93         KEY(7, 2, KEY_C),
  94         KEY(7, 3, KEY_LEFT),
  95         KEY(0xff, 0, KEY_F6),
  96         KEY(0xff, 1, KEY_F7),
  97         KEY(0xff, 2, KEY_F8),
  98         KEY(0xff, 4, KEY_F9),
  99         KEY(0xff, 5, KEY_F10),
 100 };
 101
 102 static struct twl4030_keypad_data rx51_kp_data = {
 103         .rows           = 8,
 104         .cols           = 8,
 105         .keymap         = rx51_keymap,
 106         .keymapsize     = ARRAY_SIZE(rx51_keymap),
 107         .rep            = 1,
 108 };
 109
 110 static struct platform_device *rx51_peripherals_devices[] = {
 111         &rx51_smc91x_device,
 112 };
 113
 114 /*
 115  * Timings are taken from smsc-lan91c96-ms.pdf
 116  */
 117 static int smc91x_init_gpmc(int cs)
 118 {
 119         struct gpmc_timings t;
 120         const int t2_r = 45;            /* t2 in Figure 12.10 */
 121         const int t2_w = 30;            /* t2 in Figure 12.11 */
 122         const int t3 = 15;              /* t3 in Figure 12.10 */
 123         const int t5_r = 0;             /* t5 in Figure 12.10 */
 124         const int t6_r = 45;            /* t6 in Figure 12.10 */
 125         const int t6_w = 0;             /* t6 in Figure 12.11 */
 126         const int t7_w = 15;            /* t7 in Figure 12.11 */
 127         const int t15 = 12;             /* t15 in Figure 12.2 */
 128         const int t20 = 185;            /* t20 in Figure 12.2 */
 129
 130         memset(&t, 0, sizeof(t));
 131
 132         t.cs_on = t15;
 133         t.cs_rd_off = t3 + t2_r + t5_r; /* Figure 12.10 */
 134         t.cs_wr_off = t3 + t2_w + t6_w; /* Figure 12.11 */
 135         t.adv_on = t3;                  /* Figure 12.10 */
 136         t.adv_rd_off = t3 + t2_r;       /* Figure 12.10 */
 137         t.adv_wr_off = t3 + t2_w;       /* Figure 12.11 */
 138         t.oe_off = t3 + t2_r + t5_r;    /* Figure 12.10 */
 139         t.oe_on = t.oe_off - t6_r;      /* Figure 12.10 */
 140         t.we_off = t3 + t2_w + t6_w;    /* Figure 12.11 */
 141         t.we_on = t.we_off - t7_w;      /* Figure 12.11 */
 142         t.rd_cycle = t20;               /* Figure 12.2 */
 143         t.wr_cycle = t20;               /* Figure 12.4 */
 144         t.access = t3 + t2_r + t5_r;    /* Figure 12.10 */
 145         t.wr_access = t3 + t2_w + t6_w; /* Figure 12.11 */
 146
 147         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, GPMC_CONFIG1_DEVICESIZE_16);
 148
 149         return gpmc_cs_set_timings(cs, &t);
 150 }
 151
 152 static void __init rx51_init_smc91x(void)
 153 {
 154         unsigned long cs_mem_base;
 155         int ret;
 156
 157         omap_cfg_reg(U8_34XX_GPIO54_DOWN);
 158         omap_cfg_reg(G25_34XX_GPIO86_OUT);
 159         omap_cfg_reg(H19_34XX_GPIO164_OUT);
 160
 161         if (gpmc_cs_request(SMC91X_CS, SZ_16M, &cs_mem_base) < 0) {
 162                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 163                 return;
 164         }
 165
 166         rx51_smc91x_resources[0].start = cs_mem_base + 0x300;
 167         rx51_smc91x_resources[0].end = cs_mem_base + 0x30f;
 168
 169         smc91x_init_gpmc(SMC91X_CS);
 170
 171         if (gpio_request(SMC91X_GPIO_IRQ, "SMC91X irq") < 0)
 172                 goto free1;
 173
 174         gpio_direction_input(SMC91X_GPIO_IRQ);
 175         rx51_smc91x_resources[1].start = gpio_to_irq(SMC91X_GPIO_IRQ);
 176
 177         ret = gpio_request(SMC91X_GPIO_PWRDWN, "SMC91X powerdown");
 178         if (ret)
 179                 goto free2;
 180         gpio_direction_output(SMC91X_GPIO_PWRDWN, 0);
 181
 182         ret = gpio_request(SMC91X_GPIO_RESET, "SMC91X reset");
 183         if (ret)
 184                 goto free3;
 185         gpio_direction_output(SMC91X_GPIO_RESET, 0);
 186         gpio_set_value(SMC91X_GPIO_RESET, 1);
 187         msleep(100);
 188         gpio_set_value(SMC91X_GPIO_RESET, 0);
 189
 190         return;
 191
 192 free3:
 193         gpio_free(SMC91X_GPIO_PWRDWN);
 194 free2:
 195         gpio_free(SMC91X_GPIO_IRQ);
 196 free1:
 197         gpmc_cs_free(SMC91X_CS);
 198
 199         printk(KERN_ERR "Could not initialize smc91x\n");
 200 }
 201
 202 static struct twl4030_madc_platform_data rx51_madc_data = {
 203         .irq_line               = 1,
 204 };
 205
 206 static struct twl4030_hsmmc_info mmc[] = {
 207         {
 208                 .name           = "external",
 209                 .mmc            = 1,
 210                 .wires          = 4,
 211                 .cover_only     = true,
 212                 .gpio_cd        = 160,
 213                 .gpio_wp        = -EINVAL,
 214         },
 215         {
 216                 .name           = "internal",
 217                 .mmc            = 2,
 218                 .wires          = 8,
 219                 .gpio_cd        = -EINVAL,
 220                 .gpio_wp        = -EINVAL,
 221         },
 222         {}      /* Terminator */
 223 };
 224
 225 static struct regulator_consumer_supply rx51_vmmc1_supply = {
 226         .supply                 = "vmmc",
 227 };
 228
 229 static struct regulator_consumer_supply rx51_vmmc2_supply = {
 230         .supply                 = "vmmc",
 231 };
 232
 233 static struct regulator_consumer_supply rx51_vsim_supply = {
 234         .supply                 = "vmmc_aux",
 235 };
 236
 237 static struct regulator_init_data rx51_vaux1 = {
 238         .constraints = {
 239                 .name                   = "V28",
 240                 .min_uV                 = 2800000,
 241                 .max_uV                 = 2800000,
 242                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 243                                         | REGULATOR_MODE_STANDBY,
 244                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 245                                         | REGULATOR_CHANGE_STATUS,
 246         },
 247 };
 248
 249 static struct regulator_init_data rx51_vaux2 = {
 250         .constraints = {
 251                 .name                   = "VCSI",
 252                 .min_uV                 = 1800000,
 253                 .max_uV                 = 1800000,
 254                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 255                                         | REGULATOR_MODE_STANDBY,
 256                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 257                                         | REGULATOR_CHANGE_STATUS,
 258         },
 259 };
 260
 261 /* VAUX3 - adds more power to VIO_18 rail */
 262 static struct regulator_init_data rx51_vaux3 = {
 263         .constraints = {
 264                 .name                   = "VCAM_DIG_18",
 265                 .min_uV                 = 1800000,
 266                 .max_uV                 = 1800000,
 267                 .apply_uV               = true,
 268                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 269                                         | REGULATOR_MODE_STANDBY,
 270                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 271                                         | REGULATOR_CHANGE_STATUS,
 272         },
 273 };
 274
 275 static struct regulator_init_data rx51_vaux4 = {
 276         .constraints = {
 277                 .name                   = "VCAM_ANA_28",
 278                 .min_uV                 = 2800000,
 279                 .max_uV                 = 2800000,
 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_vmmc1 = {
 289         .constraints = {
 290                 .min_uV                 = 1850000,
 291                 .max_uV                 = 3150000,
 292                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 293                                         | REGULATOR_MODE_STANDBY,
 294                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 295                                         | REGULATOR_CHANGE_MODE
 296                                         | REGULATOR_CHANGE_STATUS,
 297         },
 298         .num_consumer_supplies  = 1,
 299         .consumer_supplies      = &rx51_vmmc1_supply,
 300 };
 301
 302 static struct regulator_init_data rx51_vmmc2 = {
 303         .constraints = {
 304                 .name                   = "VMMC2_30",
 305                 .min_uV                 = 1850000,
 306                 .max_uV                 = 3150000,
 307                 .apply_uV               = true,
 308                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 309                                         | REGULATOR_MODE_STANDBY,
 310                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 311                                         | REGULATOR_CHANGE_MODE
 312                                         | REGULATOR_CHANGE_STATUS,
 313         },
 314         .num_consumer_supplies  = 1,
 315         .consumer_supplies      = &rx51_vmmc2_supply,
 316 };
 317
 318 static struct regulator_init_data rx51_vsim = {
 319         .constraints = {
 320                 .name                   = "VMMC2_IO_18",
 321                 .min_uV                 = 1800000,
 322                 .max_uV                 = 1800000,
 323                 .apply_uV               = true,
 324                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 325                                         | REGULATOR_MODE_STANDBY,
 326                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 327                                         | REGULATOR_CHANGE_STATUS,
 328         },
 329         .num_consumer_supplies  = 1,
 330         .consumer_supplies      = &rx51_vsim_supply,
 331 };
 332
 333 static struct regulator_init_data rx51_vdac = {
 334         .constraints = {
 335                 .min_uV                 = 1800000,
 336                 .max_uV                 = 1800000,
 337                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 338                                         | REGULATOR_MODE_STANDBY,
 339                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 340                                         | REGULATOR_CHANGE_MODE
 341                                         | REGULATOR_CHANGE_STATUS,
 342         },
 343 };
 344
 345 static int rx51_twlgpio_setup(struct device *dev, unsigned gpio, unsigned n)
 346 {
 347         /* FIXME this gpio setup is just a placeholder for now */
 348         gpio_request(gpio + 6, "backlight_pwm");
 349         gpio_direction_output(gpio + 6, 0);
 350         gpio_request(gpio + 7, "speaker_en");
 351         gpio_direction_output(gpio + 7, 1);
 352
 353         /* set up MMC adapters, linking their regulators to them */
 354         twl4030_mmc_init(mmc);
 355         rx51_vmmc1_supply.dev = mmc[0].dev;
 356         rx51_vmmc2_supply.dev = mmc[1].dev;
 357         rx51_vsim_supply.dev = mmc[1].dev;
 358
 359         return 0;
 360 }
 361
 362 static struct twl4030_gpio_platform_data rx51_gpio_data = {
 363         .gpio_base              = OMAP_MAX_GPIO_LINES,
 364         .irq_base               = TWL4030_GPIO_IRQ_BASE,
 365         .irq_end                = TWL4030_GPIO_IRQ_END,
 366         .pulldowns              = BIT(0) | BIT(1) | BIT(2) | BIT(3)
 367                                 | BIT(4) | BIT(5)
 368                                 | BIT(8) | BIT(9) | BIT(10) | BIT(11)
 369                                 | BIT(12) | BIT(13) | BIT(14) | BIT(15)
 370                                 | BIT(16) | BIT(17) ,
 371         .setup                  = rx51_twlgpio_setup,
 372 };
 373
 374 static struct twl4030_platform_data rx51_twldata = {
 375         .irq_base               = TWL4030_IRQ_BASE,
 376         .irq_end                = TWL4030_IRQ_END,
 377
 378         /* platform_data for children goes here */
 379         .gpio                   = &rx51_gpio_data,
 380         .keypad                 = &rx51_kp_data,
 381         .madc                   = &rx51_madc_data,
 382
 383         .vaux1                  = &rx51_vaux1,
 384         .vaux2                  = &rx51_vaux2,
 385         .vaux3                  = &rx51_vaux3,
 386         .vaux4                  = &rx51_vaux4,
 387         .vmmc1                  = &rx51_vmmc1,
 388         .vmmc2                  = &rx51_vmmc2,
 389         .vsim                   = &rx51_vsim,
 390         .vdac                   = &rx51_vdac,
 391 };
 392
 393 static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_1[] = {
 394         {
 395                 I2C_BOARD_INFO("twl5030", 0x48),
 396                 .flags = I2C_CLIENT_WAKE,
 397                 .irq = INT_34XX_SYS_NIRQ,
 398                 .platform_data = &rx51_twldata,
 399         },
 400 };
 401
 402 static int __init rx51_i2c_init(void)
 403 {
 404         omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1,
 405                         ARRAY_SIZE(rx51_peripherals_i2c_board_info_1));
 406         omap_register_i2c_bus(2, 100, NULL, 0);
 407         omap_register_i2c_bus(3, 400, NULL, 0);
 408         return 0;
 409 }
 410
 411
 412 void __init rx51_peripherals_init(void)
 413 {
 414         platform_add_devices(rx51_peripherals_devices,
 415                                 ARRAY_SIZE(rx51_peripherals_devices));
 416         rx51_i2c_init();
 417         rx51_init_smc91x();
 418 }
 419