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/gpio_keys.h>
  20 #include <linux/workqueue.h>
  21 #include <linux/err.h>
  22 #include <linux/clk.h>
  23 #include <linux/spi/spi.h>
  24 #include <linux/spi/ads7846.h>
  25 #include <linux/regulator/machine.h>
  26 #include <linux/i2c/twl4030.h>
  27 #include <linux/io.h>
  28 #include <linux/smsc911x.h>
  29
  30 #include <mach/hardware.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34
  35 #include <mach/mcspi.h>
  36 #include <mach/gpio.h>
  37 #include <mach/board.h>
  38 #include <mach/common.h>
  39 #include <mach/gpmc.h>
  40
  41 #include <asm/delay.h>
  42 #include <mach/control.h>
  43 #include <mach/usb.h>
  44 #include <mach/keypad.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 ldp_twl4030_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 twl4030_keypad_data ldp_kp_twl4030_data = {
 105         .rows           = 6,
 106         .cols           = 6,
 107         .keymap         = ldp_twl4030_keymap,
 108         .keymapsize     = ARRAY_SIZE(ldp_twl4030_keymap),
 109         .rep            = 1,
 110 };
 111
 112 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
 113         [0] = {
 114                 .code                   = KEY_ENTER,
 115                 .gpio                   = 101,
 116                 .desc                   = "enter sw",
 117                 .active_low             = 1,
 118                 .debounce_interval      = 30,
 119         },
 120         [1] = {
 121                 .code                   = KEY_F1,
 122                 .gpio                   = 102,
 123                 .desc                   = "func 1",
 124                 .active_low             = 1,
 125                 .debounce_interval      = 30,
 126         },
 127         [2] = {
 128                 .code                   = KEY_F2,
 129                 .gpio                   = 103,
 130                 .desc                   = "func 2",
 131                 .active_low             = 1,
 132                 .debounce_interval      = 30,
 133         },
 134         [3] = {
 135                 .code                   = KEY_F3,
 136                 .gpio                   = 104,
 137                 .desc                   = "func 3",
 138                 .active_low             = 1,
 139                 .debounce_interval      = 30,
 140         },
 141         [4] = {
 142                 .code                   = KEY_F4,
 143                 .gpio                   = 105,
 144                 .desc                   = "func 4",
 145                 .active_low             = 1,
 146                 .debounce_interval      = 30,
 147         },
 148         [5] = {
 149                 .code                   = KEY_LEFT,
 150                 .gpio                   = 106,
 151                 .desc                   = "left sw",
 152                 .active_low             = 1,
 153                 .debounce_interval      = 30,
 154         },
 155         [6] = {
 156                 .code                   = KEY_RIGHT,
 157                 .gpio                   = 107,
 158                 .desc                   = "right sw",
 159                 .active_low             = 1,
 160                 .debounce_interval      = 30,
 161         },
 162         [7] = {
 163                 .code                   = KEY_UP,
 164                 .gpio                   = 108,
 165                 .desc                   = "up sw",
 166                 .active_low             = 1,
 167                 .debounce_interval      = 30,
 168         },
 169         [8] = {
 170                 .code                   = KEY_DOWN,
 171                 .gpio                   = 109,
 172                 .desc                   = "down sw",
 173                 .active_low             = 1,
 174                 .debounce_interval      = 30,
 175         },
 176 };
 177
 178 static struct gpio_keys_platform_data ldp_gpio_keys = {
 179         .buttons                = ldp_gpio_keys_buttons,
 180         .nbuttons               = ARRAY_SIZE(ldp_gpio_keys_buttons),
 181         .rep                    = 1,
 182 };
 183
 184 static struct platform_device ldp_gpio_keys_device = {
 185         .name           = "gpio-keys",
 186         .id             = -1,
 187         .dev            = {
 188                 .platform_data  = &ldp_gpio_keys,
 189         },
 190 };
 191
 192 static int ts_gpio;
 193
 194 /**
 195  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 196  *
 197  * @return - void. If request gpio fails then Flag KERN_ERR.
 198  */
 199 static void ads7846_dev_init(void)
 200 {
 201         if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
 202                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 203                 return;
 204         }
 205
 206         gpio_direction_input(ts_gpio);
 207         omap_set_gpio_debounce(ts_gpio, 1);
 208         omap_set_gpio_debounce_time(ts_gpio, 0xa);
 209 }
 210
 211 static int ads7846_get_pendown_state(void)
 212 {
 213         return !gpio_get_value(ts_gpio);
 214 }
 215
 216 static struct ads7846_platform_data tsc2046_config __initdata = {
 217         .get_pendown_state      = ads7846_get_pendown_state,
 218         .keep_vref_on           = 1,
 219 };
 220
 221 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 222         .turbo_mode     = 0,
 223         .single_channel = 1,    /* 0: slave, 1: master */
 224 };
 225
 226 static struct spi_board_info ldp_spi_board_info[] __initdata = {
 227         [0] = {
 228                 /*
 229                  * TSC2046 operates at a max freqency of 2MHz, so
 230                  * operate slightly below at 1.5MHz
 231                  */
 232                 .modalias               = "ads7846",
 233                 .bus_num                = 1,
 234                 .chip_select            = 0,
 235                 .max_speed_hz           = 1500000,
 236                 .controller_data        = &tsc2046_mcspi_config,
 237                 .irq                    = 0,
 238                 .platform_data          = &tsc2046_config,
 239         },
 240 };
 241
 242 static inline void __init ldp_init_smsc911x(void)
 243 {
 244         int eth_cs;
 245         unsigned long cs_mem_base;
 246         int eth_gpio = 0;
 247
 248         eth_cs = LDP_SMSC911X_CS;
 249
 250         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 251                 printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
 252                 return;
 253         }
 254
 255         ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
 256         ldp_smsc911x_resources[0].end   = cs_mem_base + 0xff;
 257         udelay(100);
 258
 259         eth_gpio = LDP_SMSC911X_GPIO;
 260
 261         ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
 262
 263         if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
 264                 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
 265                                 eth_gpio);
 266                 return;
 267         }
 268         gpio_direction_input(eth_gpio);
 269 }
 270
 271 static void __init omap_ldp_init_irq(void)
 272 {
 273         omap2_init_common_hw(NULL, NULL);
 274         omap_init_irq();
 275         omap_gpio_init();
 276         ldp_init_smsc911x();
 277 }
 278
 279 static struct omap_uart_config ldp_uart_config __initdata = {
 280         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 281 };
 282
 283 static struct platform_device ldp_lcd_device = {
 284         .name           = "ldp_lcd",
 285         .id             = -1,
 286 };
 287
 288 static struct omap_lcd_config ldp_lcd_config __initdata = {
 289         .ctrl_name      = "internal",
 290 };
 291
 292 static struct omap_board_config_kernel ldp_config[] __initdata = {
 293         { OMAP_TAG_UART,        &ldp_uart_config },
 294         { OMAP_TAG_LCD,         &ldp_lcd_config },
 295 };
 296
 297 static struct twl4030_usb_data ldp_usb_data = {
 298         .usb_mode       = T2_USB_MODE_ULPI,
 299 };
 300
 301 static struct twl4030_gpio_platform_data ldp_gpio_data = {
 302         .gpio_base      = OMAP_MAX_GPIO_LINES,
 303         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 304         .irq_end        = TWL4030_GPIO_IRQ_END,
 305 };
 306
 307 static struct twl4030_madc_platform_data ldp_madc_data = {
 308         .irq_line       = 1,
 309 };
 310
 311 static struct regulator_consumer_supply ldp_vmmc1_supply = {
 312         .supply                 = "vmmc",
 313 };
 314
 315 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 316 static struct regulator_init_data ldp_vmmc1 = {
 317         .constraints = {
 318                 .min_uV                 = 1850000,
 319                 .max_uV                 = 3150000,
 320                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 321                                         | REGULATOR_MODE_STANDBY,
 322                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 323                                         | REGULATOR_CHANGE_MODE
 324                                         | REGULATOR_CHANGE_STATUS,
 325         },
 326         .num_consumer_supplies  = 1,
 327         .consumer_supplies      = &ldp_vmmc1_supply,
 328 };
 329
 330 static struct twl4030_platform_data ldp_twldata = {
 331         .irq_base       = TWL4030_IRQ_BASE,
 332         .irq_end        = TWL4030_IRQ_END,
 333
 334         /* platform_data for children goes here */
 335         .madc           = &ldp_madc_data,
 336         .usb            = &ldp_usb_data,
 337         .vmmc1          = &ldp_vmmc1,
 338         .gpio           = &ldp_gpio_data,
 339         .keypad         = &ldp_kp_twl4030_data,
 340 };
 341
 342 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
 343         {
 344                 I2C_BOARD_INFO("twl4030", 0x48),
 345                 .flags = I2C_CLIENT_WAKE,
 346                 .irq = INT_34XX_SYS_NIRQ,
 347                 .platform_data = &ldp_twldata,
 348         },
 349 };
 350
 351 static int __init omap_i2c_init(void)
 352 {
 353         omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
 354                         ARRAY_SIZE(ldp_i2c_boardinfo));
 355         omap_register_i2c_bus(2, 400, NULL, 0);
 356         omap_register_i2c_bus(3, 400, NULL, 0);
 357         return 0;
 358 }
 359
 360 static struct twl4030_hsmmc_info mmc[] __initdata = {
 361         {
 362                 .mmc            = 1,
 363                 .wires          = 4,
 364                 .gpio_cd        = -EINVAL,
 365                 .gpio_wp        = -EINVAL,
 366         },
 367         {}      /* Terminator */
 368 };
 369
 370 static struct platform_device *ldp_devices[] __initdata = {
 371         &ldp_smsc911x_device,
 372         &ldp_lcd_device,
 373         &ldp_gpio_keys_device,
 374 };
 375
 376 static void __init omap_ldp_init(void)
 377 {
 378         omap_i2c_init();
 379         platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
 380         omap_board_config = ldp_config;
 381         omap_board_config_size = ARRAY_SIZE(ldp_config);
 382         ts_gpio = 54;
 383         ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
 384         spi_register_board_info(ldp_spi_board_info,
 385                                 ARRAY_SIZE(ldp_spi_board_info));
 386         ads7846_dev_init();
 387         omap_serial_init();
 388         usb_musb_init();
 389
 390         twl4030_mmc_init(mmc);
 391         /* link regulators to MMC adapters */
 392         ldp_vmmc1_supply.dev = mmc[0].dev;
 393 }
 394
 395 static void __init omap_ldp_map_io(void)
 396 {
 397         omap2_set_globals_343x();
 398         omap2_map_common_io();
 399 }
 400
 401 MACHINE_START(OMAP_LDP, "OMAP LDP board")
 402         .phys_io        = 0x48000000,
 403         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 404         .boot_params    = 0x80000100,
 405         .map_io         = omap_ldp_map_io,
 406         .init_irq       = omap_ldp_init_irq,
 407         .init_machine   = omap_ldp_init,
 408         .timer          = &omap_timer,
 409 MACHINE_END