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 RX51_ETHR_GPIO_IRQ              54
  32
  33 #define RX51_TSC2005_RESET_GPIO         104
  34 #define RX51_TSC2005_IRQ_GPIO           100
  35
  36 #define RX51_SMC91X_CS                  1
  37
  38 static struct resource rx51_smc91x_resources[] = {
  39         [0] = {
  40                 .flags          = IORESOURCE_MEM,
  41         },
  42         [1] = {
  43                 .flags          = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  44         },
  45 };
  46
  47 static struct platform_device rx51_smc91x_device = {
  48         .name           = "smc91x",
  49         .id             = -1,
  50         .num_resources  = ARRAY_SIZE(rx51_smc91x_resources),
  51         .resource       = rx51_smc91x_resources,
  52 };
  53
  54 static struct tsc2005_platform_data tsc2005_config = {
  55         .reset_gpio             = RX51_TSC2005_RESET_GPIO, /* not used */
  56
  57         .ts_x_plate_ohm         = 280,
  58         .ts_hw_avg              = 0,
  59         .ts_touch_pressure      = 1500,
  60         .ts_stab_time           = 1000,
  61         .ts_pressure_max        = 2048,
  62         .ts_pressure_fudge      = 2,
  63         .ts_x_max               = 4096,
  64         .ts_x_fudge             = 4,
  65         .ts_y_max               = 4096,
  66         .ts_y_fudge             = 7,
  67 };
  68
  69 static struct omap2_mcspi_device_config tsc2005_mcspi_config = {
  70         .turbo_mode     = 0,
  71         .single_channel = 1,
  72 };
  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 static void __init rx51_init_smc91x(void)
 147 {
 148         int eth_cs;
 149         unsigned long cs_mem_base;
 150         unsigned int rate;
 151         struct clk *l3ck;
 152
 153         eth_cs  = RX51_SMC91X_CS;
 154
 155         l3ck = clk_get(NULL, "core_l3_ck");
 156         if (IS_ERR(l3ck))
 157                 rate = 100000000;
 158         else
 159                 rate = clk_get_rate(l3ck);
 160
 161         if (gpmc_cs_request(eth_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 + 0x0;
 167         rx51_smc91x_resources[0].end   = cs_mem_base + 0xf;
 168         udelay(100);
 169
 170         if (gpio_request(RX51_ETHR_GPIO_IRQ, "SMC91X irq") < 0) {
 171                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 172                         RX51_ETHR_GPIO_IRQ);
 173                 return;
 174         }
 175         gpio_direction_input(RX51_ETHR_GPIO_IRQ);
 176         rx51_smc91x_resources[1].start = gpio_to_irq(RX51_ETHR_GPIO_IRQ);
 177 }
 178
 179 static void __init rx51_init_tsc2005(void)
 180 {
 181         int r;
 182
 183         r = gpio_request(RX51_TSC2005_IRQ_GPIO, "tsc2005 DAV IRQ");
 184         if (r >= 0) {
 185                 gpio_direction_input(RX51_TSC2005_IRQ_GPIO);
 186         } else {
 187                 printk(KERN_ERR "unable to get DAV GPIO");
 188         }
 189 }
 190
 191 static struct twl4030_madc_platform_data rx51_madc_data = {
 192         .irq_line               = 1,
 193 };
 194
 195 static struct regulator_init_data rx51_vaux1 = {
 196         .constraints = {
 197                 .name                   = "V28",
 198                 .min_uV                 = 2800000,
 199                 .max_uV                 = 2800000,
 200                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 201                                         | REGULATOR_MODE_STANDBY,
 202                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 203                                         | REGULATOR_CHANGE_STATUS,
 204         },
 205 };
 206
 207 static struct regulator_init_data rx51_vaux2 = {
 208         .constraints = {
 209                 .name                   = "VCSI",
 210                 .min_uV                 = 1800000,
 211                 .max_uV                 = 1800000,
 212                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 213                                         | REGULATOR_MODE_STANDBY,
 214                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 215                                         | REGULATOR_CHANGE_STATUS,
 216         },
 217 };
 218
 219 /* VAUX3 - adds more power to VIO_18 rail */
 220 static struct regulator_init_data rx51_vaux3 = {
 221         .constraints = {
 222                 .name                   = "VCAM_DIG_18",
 223                 .min_uV                 = 1800000,
 224                 .max_uV                 = 1800000,
 225                 .apply_uV               = true,
 226                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 227                                         | REGULATOR_MODE_STANDBY,
 228                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 229                                         | REGULATOR_CHANGE_STATUS,
 230         },
 231 };
 232
 233 static struct regulator_init_data rx51_vaux4 = {
 234         .constraints = {
 235                 .name                   = "VCAM_ANA_28",
 236                 .min_uV                 = 2800000,
 237                 .max_uV                 = 2800000,
 238                 .apply_uV               = true,
 239                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 240                                         | REGULATOR_MODE_STANDBY,
 241                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 242                                         | REGULATOR_CHANGE_STATUS,
 243         },
 244 };
 245
 246 static struct regulator_init_data rx51_vmmc1 = {
 247         .constraints = {
 248                 .min_uV                 = 1850000,
 249                 .max_uV                 = 3150000,
 250                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 251                                         | REGULATOR_MODE_STANDBY,
 252                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 253                                         | REGULATOR_CHANGE_MODE
 254                                         | REGULATOR_CHANGE_STATUS,
 255         },
 256 };
 257
 258 static struct regulator_init_data rx51_vmmc2 = {
 259         .constraints = {
 260                 .name                   = "VMMC2_30",
 261                 .min_uV                 = 1850000,
 262                 .max_uV                 = 3150000,
 263                 .apply_uV               = true,
 264                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 265                                         | REGULATOR_MODE_STANDBY,
 266                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 267                                         | REGULATOR_CHANGE_MODE
 268                                         | REGULATOR_CHANGE_STATUS,
 269         },
 270 };
 271
 272 static struct regulator_init_data rx51_vsim = {
 273         .constraints = {
 274                 .name                   = "VMMC2_IO_18",
 275                 .min_uV                 = 1800000,
 276                 .max_uV                 = 1800000,
 277                 .apply_uV               = true,
 278                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 279                                         | REGULATOR_MODE_STANDBY,
 280                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 281                                         | REGULATOR_CHANGE_STATUS,
 282         },
 283 };
 284
 285 static struct regulator_init_data rx51_vdac = {
 286         .constraints = {
 287                 .min_uV                 = 1800000,
 288                 .max_uV                 = 1800000,
 289                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 290                                         | REGULATOR_MODE_STANDBY,
 291                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 292                                         | REGULATOR_CHANGE_MODE
 293                                         | REGULATOR_CHANGE_STATUS,
 294         },
 295 };
 296
 297 static int rx51_twlgpio_setup(struct device *dev, unsigned gpio, unsigned n)
 298 {
 299         /* FIXME this gpio setup is just a placeholder for now */
 300         gpio_request(gpio + 6, "backlight_pwm");
 301         gpio_direction_output(gpio + 6, 0);
 302         gpio_request(gpio + 7, "speaker_en");
 303         gpio_direction_output(gpio + 7, 1);
 304
 305         /* FIXME connect power supplies to devices; register MMC */
 306
 307         return 0;
 308 }
 309
 310 static struct twl4030_gpio_platform_data rx51_gpio_data = {
 311         .gpio_base              = OMAP_MAX_GPIO_LINES,
 312         .irq_base               = TWL4030_GPIO_IRQ_BASE,
 313         .irq_end                = TWL4030_GPIO_IRQ_END,
 314         .pulldowns              = BIT(0) | BIT(1) | BIT(2) | BIT(3)
 315                                 | BIT(4) | BIT(5)
 316                                 | BIT(8) | BIT(9) | BIT(10) | BIT(11)
 317                                 | BIT(12) | BIT(13) | BIT(14) | BIT(15)
 318                                 | BIT(16) | BIT(17) ,
 319         .setup                  = rx51_twlgpio_setup,
 320 };
 321
 322 static struct twl4030_platform_data rx51_twldata = {
 323         .irq_base               = TWL4030_IRQ_BASE,
 324         .irq_end                = TWL4030_IRQ_END,
 325
 326         /* platform_data for children goes here */
 327         .gpio                   = &rx51_gpio_data,
 328         .keypad                 = &rx51_kp_data,
 329         .madc                   = &rx51_madc_data,
 330
 331         .vaux1                  = &rx51_vaux1,
 332         .vaux2                  = &rx51_vaux2,
 333         .vaux3                  = &rx51_vaux3,
 334         .vaux4                  = &rx51_vaux4,
 335         .vmmc1                  = &rx51_vmmc1,
 336         .vmmc2                  = &rx51_vmmc2,
 337         .vsim                   = &rx51_vsim,
 338         .vdac                   = &rx51_vdac,
 339 };
 340
 341 static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_1[] = {
 342         {
 343                 I2C_BOARD_INFO("twl5030", 0x48),
 344                 .flags = I2C_CLIENT_WAKE,
 345                 .irq = INT_34XX_SYS_NIRQ,
 346                 .platform_data = &rx51_twldata,
 347         },
 348 };
 349
 350 static int __init rx51_i2c_init(void)
 351 {
 352         omap_register_i2c_bus(1, 2600, rx51_peripherals_i2c_board_info_1,
 353                         ARRAY_SIZE(rx51_peripherals_i2c_board_info_1));
 354         omap_register_i2c_bus(2, 100, NULL, 0);
 355         omap_register_i2c_bus(3, 400, NULL, 0);
 356         return 0;
 357 }
 358
 359
 360 void __init rx51_peripherals_init(void)
 361 {
 362         platform_add_devices(rx51_peripherals_devices,
 363                                 ARRAY_SIZE(rx51_peripherals_devices));
 364         spi_register_board_info(rx51_peripherals_spi_board_info,
 365                                 ARRAY_SIZE(rx51_peripherals_spi_board_info));
 366         rx51_i2c_init();
 367         rx51_init_smc91x();
 368         rx51_init_tsc2005();
 369 }
 370