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