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 "mux.h"
  47 #include "mmc-twl4030.h"
  48
  49 #define LDP_SMSC911X_CS         1
  50 #define LDP_SMSC911X_GPIO       152
  51 #define DEBUG_BASE              0x08000000
  52 #define LDP_ETHR_START          DEBUG_BASE
  53
  54 static struct resource ldp_smsc911x_resources[] = {
  55         [0] = {
  56                 .start  = LDP_ETHR_START,
  57                 .end    = LDP_ETHR_START + SZ_4K,
  58                 .flags  = IORESOURCE_MEM,
  59         },
  60         [1] = {
  61                 .start  = 0,
  62                 .end    = 0,
  63                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  64         },
  65 };
  66
  67 static struct smsc911x_platform_config ldp_smsc911x_config = {
  68         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  69         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  70         .flags          = SMSC911X_USE_32BIT,
  71         .phy_interface  = PHY_INTERFACE_MODE_MII,
  72 };
  73
  74 static struct platform_device ldp_smsc911x_device = {
  75         .name           = "smsc911x",
  76         .id             = -1,
  77         .num_resources  = ARRAY_SIZE(ldp_smsc911x_resources),
  78         .resource       = ldp_smsc911x_resources,
  79         .dev            = {
  80                 .platform_data = &ldp_smsc911x_config,
  81         },
  82 };
  83
  84 static int board_keymap[] = {
  85         KEY(0, 0, KEY_1),
  86         KEY(1, 0, KEY_2),
  87         KEY(2, 0, KEY_3),
  88         KEY(0, 1, KEY_4),
  89         KEY(1, 1, KEY_5),
  90         KEY(2, 1, KEY_6),
  91         KEY(3, 1, KEY_F5),
  92         KEY(0, 2, KEY_7),
  93         KEY(1, 2, KEY_8),
  94         KEY(2, 2, KEY_9),
  95         KEY(3, 2, KEY_F6),
  96         KEY(0, 3, KEY_F7),
  97         KEY(1, 3, KEY_0),
  98         KEY(2, 3, KEY_F8),
  99         PERSISTENT_KEY(4, 5),
 100         KEY(4, 4, KEY_VOLUMEUP),
 101         KEY(5, 5, KEY_VOLUMEDOWN),
 102         0
 103 };
 104
 105 static struct matrix_keymap_data board_map_data = {
 106         .keymap                 = board_keymap,
 107         .keymap_size            = ARRAY_SIZE(board_keymap),
 108 };
 109
 110 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
 111         .keymap_data    = &board_map_data,
 112         .rows           = 6,
 113         .cols           = 6,
 114         .rep            = 1,
 115 };
 116
 117 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
 118         [0] = {
 119                 .code                   = KEY_ENTER,
 120                 .gpio                   = 101,
 121                 .desc                   = "enter sw",
 122                 .active_low             = 1,
 123                 .debounce_interval      = 30,
 124         },
 125         [1] = {
 126                 .code                   = KEY_F1,
 127                 .gpio                   = 102,
 128                 .desc                   = "func 1",
 129                 .active_low             = 1,
 130                 .debounce_interval      = 30,
 131         },
 132         [2] = {
 133                 .code                   = KEY_F2,
 134                 .gpio                   = 103,
 135                 .desc                   = "func 2",
 136                 .active_low             = 1,
 137                 .debounce_interval      = 30,
 138         },
 139         [3] = {
 140                 .code                   = KEY_F3,
 141                 .gpio                   = 104,
 142                 .desc                   = "func 3",
 143                 .active_low             = 1,
 144                 .debounce_interval      = 30,
 145         },
 146         [4] = {
 147                 .code                   = KEY_F4,
 148                 .gpio                   = 105,
 149                 .desc                   = "func 4",
 150                 .active_low             = 1,
 151                 .debounce_interval      = 30,
 152         },
 153         [5] = {
 154                 .code                   = KEY_LEFT,
 155                 .gpio                   = 106,
 156                 .desc                   = "left sw",
 157                 .active_low             = 1,
 158                 .debounce_interval      = 30,
 159         },
 160         [6] = {
 161                 .code                   = KEY_RIGHT,
 162                 .gpio                   = 107,
 163                 .desc                   = "right sw",
 164                 .active_low             = 1,
 165                 .debounce_interval      = 30,
 166         },
 167         [7] = {
 168                 .code                   = KEY_UP,
 169                 .gpio                   = 108,
 170                 .desc                   = "up sw",
 171                 .active_low             = 1,
 172                 .debounce_interval      = 30,
 173         },
 174         [8] = {
 175                 .code                   = KEY_DOWN,
 176                 .gpio                   = 109,
 177                 .desc                   = "down sw",
 178                 .active_low             = 1,
 179                 .debounce_interval      = 30,
 180         },
 181 };
 182
 183 static struct gpio_keys_platform_data ldp_gpio_keys = {
 184         .buttons                = ldp_gpio_keys_buttons,
 185         .nbuttons               = ARRAY_SIZE(ldp_gpio_keys_buttons),
 186         .rep                    = 1,
 187 };
 188
 189 static struct platform_device ldp_gpio_keys_device = {
 190         .name           = "gpio-keys",
 191         .id             = -1,
 192         .dev            = {
 193                 .platform_data  = &ldp_gpio_keys,
 194         },
 195 };
 196
 197 static int ts_gpio;
 198
 199 /**
 200  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 201  *
 202  * @return - void. If request gpio fails then Flag KERN_ERR.
 203  */
 204 static void ads7846_dev_init(void)
 205 {
 206         if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
 207                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 208                 return;
 209         }
 210
 211         gpio_direction_input(ts_gpio);
 212         omap_set_gpio_debounce(ts_gpio, 1);
 213         omap_set_gpio_debounce_time(ts_gpio, 0xa);
 214 }
 215
 216 static int ads7846_get_pendown_state(void)
 217 {
 218         return !gpio_get_value(ts_gpio);
 219 }
 220
 221 static struct ads7846_platform_data tsc2046_config __initdata = {
 222         .get_pendown_state      = ads7846_get_pendown_state,
 223         .keep_vref_on           = 1,
 224 };
 225
 226 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 227         .turbo_mode     = 0,
 228         .single_channel = 1,    /* 0: slave, 1: master */
 229 };
 230
 231 static struct spi_board_info ldp_spi_board_info[] __initdata = {
 232         [0] = {
 233                 /*
 234                  * TSC2046 operates at a max freqency of 2MHz, so
 235                  * operate slightly below at 1.5MHz
 236                  */
 237                 .modalias               = "ads7846",
 238                 .bus_num                = 1,
 239                 .chip_select            = 0,
 240                 .max_speed_hz           = 1500000,
 241                 .controller_data        = &tsc2046_mcspi_config,
 242                 .irq                    = 0,
 243                 .platform_data          = &tsc2046_config,
 244         },
 245 };
 246
 247 static inline void __init ldp_init_smsc911x(void)
 248 {
 249         int eth_cs;
 250         unsigned long cs_mem_base;
 251         int eth_gpio = 0;
 252
 253         eth_cs = LDP_SMSC911X_CS;
 254
 255         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 256                 printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
 257                 return;
 258         }
 259
 260         ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
 261         ldp_smsc911x_resources[0].end   = cs_mem_base + 0xff;
 262         udelay(100);
 263
 264         eth_gpio = LDP_SMSC911X_GPIO;
 265
 266         ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
 267
 268         if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
 269                 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
 270                                 eth_gpio);
 271                 return;
 272         }
 273         gpio_direction_input(eth_gpio);
 274 }
 275
 276 static struct platform_device ldp_lcd_device = {
 277         .name           = "ldp_lcd",
 278         .id             = -1,
 279 };
 280
 281 static struct omap_lcd_config ldp_lcd_config __initdata = {
 282         .ctrl_name      = "internal",
 283 };
 284
 285 static struct omap_board_config_kernel ldp_config[] __initdata = {
 286         { OMAP_TAG_LCD,         &ldp_lcd_config },
 287 };
 288
 289 static void __init omap_ldp_init_irq(void)
 290 {
 291         omap_board_config = ldp_config;
 292         omap_board_config_size = ARRAY_SIZE(ldp_config);
 293         omap2_init_common_hw(NULL, NULL);
 294         omap_init_irq();
 295         omap_gpio_init();
 296         ldp_init_smsc911x();
 297 }
 298
 299 static struct twl4030_usb_data ldp_usb_data = {
 300         .usb_mode       = T2_USB_MODE_ULPI,
 301 };
 302
 303 static struct twl4030_gpio_platform_data ldp_gpio_data = {
 304         .gpio_base      = OMAP_MAX_GPIO_LINES,
 305         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 306         .irq_end        = TWL4030_GPIO_IRQ_END,
 307 };
 308
 309 static struct twl4030_madc_platform_data ldp_madc_data = {
 310         .irq_line       = 1,
 311 };
 312
 313 static struct regulator_consumer_supply ldp_vmmc1_supply = {
 314         .supply                 = "vmmc",
 315 };
 316
 317 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 318 static struct regulator_init_data ldp_vmmc1 = {
 319         .constraints = {
 320                 .min_uV                 = 1850000,
 321                 .max_uV                 = 3150000,
 322                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 323                                         | REGULATOR_MODE_STANDBY,
 324                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 325                                         | REGULATOR_CHANGE_MODE
 326                                         | REGULATOR_CHANGE_STATUS,
 327         },
 328         .num_consumer_supplies  = 1,
 329         .consumer_supplies      = &ldp_vmmc1_supply,
 330 };
 331
 332 static struct twl4030_platform_data ldp_twldata = {
 333         .irq_base       = TWL4030_IRQ_BASE,
 334         .irq_end        = TWL4030_IRQ_END,
 335
 336         /* platform_data for children goes here */
 337         .madc           = &ldp_madc_data,
 338         .usb            = &ldp_usb_data,
 339         .vmmc1          = &ldp_vmmc1,
 340         .gpio           = &ldp_gpio_data,
 341         .keypad         = &ldp_kp_twl4030_data,
 342 };
 343
 344 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
 345         {
 346                 I2C_BOARD_INFO("twl4030", 0x48),
 347                 .flags = I2C_CLIENT_WAKE,
 348                 .irq = INT_34XX_SYS_NIRQ,
 349                 .platform_data = &ldp_twldata,
 350         },
 351 };
 352
 353 static int __init omap_i2c_init(void)
 354 {
 355         omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
 356                         ARRAY_SIZE(ldp_i2c_boardinfo));
 357         omap_register_i2c_bus(2, 400, NULL, 0);
 358         omap_register_i2c_bus(3, 400, NULL, 0);
 359         return 0;
 360 }
 361
 362 static struct twl4030_hsmmc_info mmc[] __initdata = {
 363         {
 364                 .mmc            = 1,
 365                 .wires          = 4,
 366                 .gpio_cd        = -EINVAL,
 367                 .gpio_wp        = -EINVAL,
 368         },
 369         {}      /* Terminator */
 370 };
 371
 372 static struct platform_device *ldp_devices[] __initdata = {
 373         &ldp_smsc911x_device,
 374         &ldp_lcd_device,
 375         &ldp_gpio_keys_device,
 376 };
 377
 378 #ifdef CONFIG_OMAP_MUX
 379 static struct omap_board_mux board_mux[] __initdata = {
 380         { .reg_offset = OMAP_MUX_TERMINATOR },
 381 };
 382 #else
 383 #define board_mux       NULL
 384 #endif
 385
 386 static void __init omap_ldp_init(void)
 387 {
 388         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 389         omap_i2c_init();
 390         platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
 391         ts_gpio = 54;
 392         ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
 393         spi_register_board_info(ldp_spi_board_info,
 394                                 ARRAY_SIZE(ldp_spi_board_info));
 395         ads7846_dev_init();
 396         omap_serial_init();
 397         usb_musb_init();
 398
 399         twl4030_mmc_init(mmc);
 400         /* link regulators to MMC adapters */
 401         ldp_vmmc1_supply.dev = mmc[0].dev;
 402 }
 403
 404 static void __init omap_ldp_map_io(void)
 405 {
 406         omap2_set_globals_343x();
 407         omap2_map_common_io();
 408 }
 409
 410 MACHINE_START(OMAP_LDP, "OMAP LDP board")
 411         .phys_io        = 0x48000000,
 412         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 413         .boot_params    = 0x80000100,
 414         .map_io         = omap_ldp_map_io,
 415         .init_irq       = omap_ldp_init_irq,
 416         .init_machine   = omap_ldp_init,
 417         .timer          = &omap_timer,
 418 MACHINE_END