arch/arm/mach-omap2/board-ldp.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-ldp.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments Inc.
   5  * Nishant Kamat <nskamat@ti.com>
   6  *
   7  * Modified from mach-omap2/board-3430sdp.c
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/delay.h>
  18 #include <linux/input.h>
  19 #include <linux/input/matrix_keypad.h>
  20 #include <linux/gpio_keys.h>
  21 #include <linux/workqueue.h>
  22 #include <linux/err.h>
  23 #include <linux/clk.h>
  24 #include <linux/spi/spi.h>
  25 #include <linux/spi/ads7846.h>
  26 #include <linux/regulator/machine.h>
  27 #include <linux/i2c/twl4030.h>
  28 #include <linux/io.h>
  29 #include <linux/smsc911x.h>
  30
  31 #include <mach/hardware.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35
  36 #include <plat/mcspi.h>
  37 #include <mach/gpio.h>
  38 #include <plat/board.h>
  39 #include <plat/common.h>
  40 #include <plat/gpmc.h>
  41
  42 #include <asm/delay.h>
  43 #include <plat/control.h>
  44 #include <plat/usb.h>
  45
  46 #include "mmc-twl4030.h"
  47
  48 #define LDP_SMSC911X_CS         1
  49 #define LDP_SMSC911X_GPIO       152
  50 #define DEBUG_BASE              0x08000000
  51 #define LDP_ETHR_START          DEBUG_BASE
  52
  53 #include <media/v4l2-int-device.h>
  54
  55 #if defined(CONFIG_VIDEO_OV3640) || defined(CONFIG_VIDEO_OV3640_MODULE)
  56 #include <media/ov3640.h>
  57 extern struct ov3640_platform_data ldp_ov3640_platform_data;
  58 #endif
  59
  60 extern void ldp_cam_init(void);
  61
  62 static struct resource ldp_smsc911x_resources[] = {
  63         [0] = {
  64                 .start  = LDP_ETHR_START,
  65                 .end    = LDP_ETHR_START + SZ_4K,
  66                 .flags  = IORESOURCE_MEM,
  67         },
  68         [1] = {
  69                 .start  = 0,
  70                 .end    = 0,
  71                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  72         },
  73 };
  74
  75 static struct smsc911x_platform_config ldp_smsc911x_config = {
  76         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  77         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  78         .flags          = SMSC911X_USE_32BIT,
  79         .phy_interface  = PHY_INTERFACE_MODE_MII,
  80 };
  81
  82 static struct platform_device ldp_smsc911x_device = {
  83         .name           = "smsc911x",
  84         .id             = -1,
  85         .num_resources  = ARRAY_SIZE(ldp_smsc911x_resources),
  86         .resource       = ldp_smsc911x_resources,
  87         .dev            = {
  88                 .platform_data = &ldp_smsc911x_config,
  89         },
  90 };
  91
  92 static int board_keymap[] = {
  93         KEY(0, 0, KEY_1),
  94         KEY(1, 0, KEY_2),
  95         KEY(2, 0, KEY_3),
  96         KEY(0, 1, KEY_4),
  97         KEY(1, 1, KEY_5),
  98         KEY(2, 1, KEY_6),
  99         KEY(3, 1, KEY_F5),
 100         KEY(0, 2, KEY_7),
 101         KEY(1, 2, KEY_8),
 102         KEY(2, 2, KEY_9),
 103         KEY(3, 2, KEY_F6),
 104         KEY(0, 3, KEY_F7),
 105         KEY(1, 3, KEY_0),
 106         KEY(2, 3, KEY_F8),
 107         PERSISTENT_KEY(4, 5),
 108         KEY(4, 4, KEY_VOLUMEUP),
 109         KEY(5, 5, KEY_VOLUMEDOWN),
 110         0
 111 };
 112
 113 static struct matrix_keymap_data board_map_data = {
 114         .keymap                 = board_keymap,
 115         .keymap_size            = ARRAY_SIZE(board_keymap),
 116 };
 117
 118 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
 119         .keymap_data    = &board_map_data,
 120         .rows           = 6,
 121         .cols           = 6,
 122         .rep            = 1,
 123 };
 124
 125 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
 126         [0] = {
 127                 .code                   = KEY_ENTER,
 128                 .gpio                   = 101,
 129                 .desc                   = "enter sw",
 130                 .active_low             = 1,
 131                 .debounce_interval      = 30,
 132         },
 133         [1] = {
 134                 .code                   = KEY_F1,
 135                 .gpio                   = 102,
 136                 .desc                   = "func 1",
 137                 .active_low             = 1,
 138                 .debounce_interval      = 30,
 139         },
 140         [2] = {
 141                 .code                   = KEY_F2,
 142                 .gpio                   = 103,
 143                 .desc                   = "func 2",
 144                 .active_low             = 1,
 145                 .debounce_interval      = 30,
 146         },
 147         [3] = {
 148                 .code                   = KEY_F3,
 149                 .gpio                   = 104,
 150                 .desc                   = "func 3",
 151                 .active_low             = 1,
 152                 .debounce_interval      = 30,
 153         },
 154         [4] = {
 155                 .code                   = KEY_F4,
 156                 .gpio                   = 105,
 157                 .desc                   = "func 4",
 158                 .active_low             = 1,
 159                 .debounce_interval      = 30,
 160         },
 161         [5] = {
 162                 .code                   = KEY_LEFT,
 163                 .gpio                   = 106,
 164                 .desc                   = "left sw",
 165                 .active_low             = 1,
 166                 .debounce_interval      = 30,
 167         },
 168         [6] = {
 169                 .code                   = KEY_RIGHT,
 170                 .gpio                   = 107,
 171                 .desc                   = "right sw",
 172                 .active_low             = 1,
 173                 .debounce_interval      = 30,
 174         },
 175         [7] = {
 176                 .code                   = KEY_UP,
 177                 .gpio                   = 108,
 178                 .desc                   = "up sw",
 179                 .active_low             = 1,
 180                 .debounce_interval      = 30,
 181         },
 182         [8] = {
 183                 .code                   = KEY_DOWN,
 184                 .gpio                   = 109,
 185                 .desc                   = "down sw",
 186                 .active_low             = 1,
 187                 .debounce_interval      = 30,
 188         },
 189 };
 190
 191 static struct gpio_keys_platform_data ldp_gpio_keys = {
 192         .buttons                = ldp_gpio_keys_buttons,
 193         .nbuttons               = ARRAY_SIZE(ldp_gpio_keys_buttons),
 194         .rep                    = 1,
 195 };
 196
 197 static struct platform_device ldp_gpio_keys_device = {
 198         .name           = "gpio-keys",
 199         .id             = -1,
 200         .dev            = {
 201                 .platform_data  = &ldp_gpio_keys,
 202         },
 203 };
 204
 205 static int ts_gpio;
 206
 207 /**
 208  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 209  *
 210  * @return - void. If request gpio fails then Flag KERN_ERR.
 211  */
 212 static void ads7846_dev_init(void)
 213 {
 214         if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
 215                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 216                 return;
 217         }
 218
 219         gpio_direction_input(ts_gpio);
 220         omap_set_gpio_debounce(ts_gpio, 1);
 221         omap_set_gpio_debounce_time(ts_gpio, 0xa);
 222 }
 223
 224 static int ads7846_get_pendown_state(void)
 225 {
 226         return !gpio_get_value(ts_gpio);
 227 }
 228
 229 static struct ads7846_platform_data tsc2046_config __initdata = {
 230         .get_pendown_state      = ads7846_get_pendown_state,
 231         .keep_vref_on           = 1,
 232 };
 233
 234 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 235         .turbo_mode     = 0,
 236         .single_channel = 1,    /* 0: slave, 1: master */
 237 };
 238
 239 static struct spi_board_info ldp_spi_board_info[] __initdata = {
 240         [0] = {
 241                 /*
 242                  * TSC2046 operates at a max freqency of 2MHz, so
 243                  * operate slightly below at 1.5MHz
 244                  */
 245                 .modalias               = "ads7846",
 246                 .bus_num                = 1,
 247                 .chip_select            = 0,
 248                 .max_speed_hz           = 1500000,
 249                 .controller_data        = &tsc2046_mcspi_config,
 250                 .irq                    = 0,
 251                 .platform_data          = &tsc2046_config,
 252         },
 253 };
 254
 255 static inline void __init ldp_init_smsc911x(void)
 256 {
 257         int eth_cs;
 258         unsigned long cs_mem_base;
 259         int eth_gpio = 0;
 260
 261         eth_cs = LDP_SMSC911X_CS;
 262
 263         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 264                 printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
 265                 return;
 266         }
 267
 268         ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
 269         ldp_smsc911x_resources[0].end   = cs_mem_base + 0xff;
 270         udelay(100);
 271
 272         eth_gpio = LDP_SMSC911X_GPIO;
 273
 274         ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
 275
 276         if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
 277                 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
 278                                 eth_gpio);
 279                 return;
 280         }
 281         gpio_direction_input(eth_gpio);
 282 }
 283
 284 static struct platform_device ldp_lcd_device = {
 285         .name           = "ldp_lcd",
 286         .id             = -1,
 287 };
 288
 289 static struct omap_lcd_config ldp_lcd_config __initdata = {
 290         .ctrl_name      = "internal",
 291 };
 292
 293 static struct omap_board_config_kernel ldp_config[] __initdata = {
 294         { OMAP_TAG_LCD,         &ldp_lcd_config },
 295 };
 296
 297 static void __init omap_ldp_init_irq(void)
 298 {
 299         omap_board_config = ldp_config;
 300         omap_board_config_size = ARRAY_SIZE(ldp_config);
 301         omap2_init_common_hw(NULL, NULL, NULL, NULL, NULL);
 302         omap_init_irq();
 303         omap_gpio_init();
 304         ldp_init_smsc911x();
 305 }
 306
 307 static struct twl4030_usb_data ldp_usb_data = {
 308         .usb_mode       = T2_USB_MODE_ULPI,
 309 };
 310
 311 static struct twl4030_gpio_platform_data ldp_gpio_data = {
 312         .gpio_base      = OMAP_MAX_GPIO_LINES,
 313         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 314         .irq_end        = TWL4030_GPIO_IRQ_END,
 315 };
 316
 317 static struct twl4030_madc_platform_data ldp_madc_data = {
 318         .irq_line       = 1,
 319 };
 320
 321 static struct regulator_consumer_supply ldp_vmmc1_supply = {
 322         .supply                 = "vmmc",
 323 };
 324
 325 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 326 static struct regulator_init_data ldp_vmmc1 = {
 327         .constraints = {
 328                 .min_uV                 = 1850000,
 329                 .max_uV                 = 3150000,
 330                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 331                                         | REGULATOR_MODE_STANDBY,
 332                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 333                                         | REGULATOR_CHANGE_MODE
 334                                         | REGULATOR_CHANGE_STATUS,
 335         },
 336         .num_consumer_supplies  = 1,
 337         .consumer_supplies      = &ldp_vmmc1_supply,
 338 };
 339
 340 static struct twl4030_platform_data ldp_twldata = {
 341         .irq_base       = TWL4030_IRQ_BASE,
 342         .irq_end        = TWL4030_IRQ_END,
 343
 344         /* platform_data for children goes here */
 345         .madc           = &ldp_madc_data,
 346         .usb            = &ldp_usb_data,
 347         .vmmc1          = &ldp_vmmc1,
 348         .gpio           = &ldp_gpio_data,
 349         .keypad         = &ldp_kp_twl4030_data,
 350 };
 351
 352 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
 353         {
 354                 I2C_BOARD_INFO("twl4030", 0x48),
 355                 .flags = I2C_CLIENT_WAKE,
 356                 .irq = INT_34XX_SYS_NIRQ,
 357                 .platform_data = &ldp_twldata,
 358         },
 359 };
 360
 361 static struct i2c_board_info __initdata ldp_i2c_boardinfo_2[] = {
 362 #if defined(CONFIG_VIDEO_OV3640) || defined(CONFIG_VIDEO_OV3640_MODULE)
 363         {
 364                 I2C_BOARD_INFO("ov3640", OV3640_I2C_ADDR),
 365                 .platform_data = &ldp_ov3640_platform_data,
 366         },
 367 #endif
 368 };
 369
 370 static int __init omap_i2c_init(void)
 371 {
 372         omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
 373                         ARRAY_SIZE(ldp_i2c_boardinfo));
 374         omap_register_i2c_bus(2, 400, ldp_i2c_boardinfo_2,
 375                         ARRAY_SIZE(ldp_i2c_boardinfo_2));
 376         omap_register_i2c_bus(3, 400, NULL, 0);
 377         return 0;
 378 }
 379
 380 static struct twl4030_hsmmc_info mmc[] __initdata = {
 381         {
 382                 .mmc            = 1,
 383                 .wires          = 4,
 384                 .gpio_cd        = -EINVAL,
 385                 .gpio_wp        = -EINVAL,
 386         },
 387         {}      /* Terminator */
 388 };
 389
 390 static struct platform_device *ldp_devices[] __initdata = {
 391         &ldp_smsc911x_device,
 392         &ldp_lcd_device,
 393         &ldp_gpio_keys_device,
 394 };
 395
 396 static void __init omap_ldp_init(void)
 397 {
 398         omap_i2c_init();
 399         platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
 400         ts_gpio = 54;
 401         ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
 402         spi_register_board_info(ldp_spi_board_info,
 403                                 ARRAY_SIZE(ldp_spi_board_info));
 404         ads7846_dev_init();
 405         omap_serial_init();
 406         usb_musb_init();
 407
 408         twl4030_mmc_init(mmc);
 409         /* link regulators to MMC adapters */
 410         ldp_vmmc1_supply.dev = mmc[0].dev;
 411         ldp_cam_init();
 412 }
 413
 414 static void __init omap_ldp_map_io(void)
 415 {
 416         omap2_set_globals_343x();
 417         omap2_map_common_io();
 418 }
 419
 420 MACHINE_START(OMAP_LDP, "OMAP LDP board")
 421         .phys_io        = 0x48000000,
 422         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 423         .boot_params    = 0x80000100,
 424         .map_io         = omap_ldp_map_io,
 425         .init_irq       = omap_ldp_init_irq,
 426         .init_machine   = omap_ldp_init,
 427         .timer          = &omap_timer,
 428 MACHINE_END