release/src-rt-6.x.4708/linux/linux-2.6.36/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/twl.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 #include <mach/board-zoom.h>
  42
  43 #include <asm/delay.h>
  44 #include <plat/control.h>
  45 #include <plat/usb.h>
  46
  47 #include "mux.h"
  48 #include "hsmmc.h"
  49
  50 #define LDP_SMSC911X_CS         1
  51 #define LDP_SMSC911X_GPIO       152
  52 #define DEBUG_BASE              0x08000000
  53 #define LDP_ETHR_START          DEBUG_BASE
  54
  55 static struct resource ldp_smsc911x_resources[] = {
  56         [0] = {
  57                 .start  = LDP_ETHR_START,
  58                 .end    = LDP_ETHR_START + SZ_4K,
  59                 .flags  = IORESOURCE_MEM,
  60         },
  61         [1] = {
  62                 .start  = 0,
  63                 .end    = 0,
  64                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  65         },
  66 };
  67
  68 static struct smsc911x_platform_config ldp_smsc911x_config = {
  69         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  70         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  71         .flags          = SMSC911X_USE_32BIT,
  72         .phy_interface  = PHY_INTERFACE_MODE_MII,
  73 };
  74
  75 static struct platform_device ldp_smsc911x_device = {
  76         .name           = "smsc911x",
  77         .id             = -1,
  78         .num_resources  = ARRAY_SIZE(ldp_smsc911x_resources),
  79         .resource       = ldp_smsc911x_resources,
  80         .dev            = {
  81                 .platform_data = &ldp_smsc911x_config,
  82         },
  83 };
  84
  85 static int board_keymap[] = {
  86         KEY(0, 0, KEY_1),
  87         KEY(1, 0, KEY_2),
  88         KEY(2, 0, KEY_3),
  89         KEY(0, 1, KEY_4),
  90         KEY(1, 1, KEY_5),
  91         KEY(2, 1, KEY_6),
  92         KEY(3, 1, KEY_F5),
  93         KEY(0, 2, KEY_7),
  94         KEY(1, 2, KEY_8),
  95         KEY(2, 2, KEY_9),
  96         KEY(3, 2, KEY_F6),
  97         KEY(0, 3, KEY_F7),
  98         KEY(1, 3, KEY_0),
  99         KEY(2, 3, KEY_F8),
 100         PERSISTENT_KEY(4, 5),
 101         KEY(4, 4, KEY_VOLUMEUP),
 102         KEY(5, 5, KEY_VOLUMEDOWN),
 103         0
 104 };
 105
 106 static struct matrix_keymap_data board_map_data = {
 107         .keymap                 = board_keymap,
 108         .keymap_size            = ARRAY_SIZE(board_keymap),
 109 };
 110
 111 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
 112         .keymap_data    = &board_map_data,
 113         .rows           = 6,
 114         .cols           = 6,
 115         .rep            = 1,
 116 };
 117
 118 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
 119         [0] = {
 120                 .code                   = KEY_ENTER,
 121                 .gpio                   = 101,
 122                 .desc                   = "enter sw",
 123                 .active_low             = 1,
 124                 .debounce_interval      = 30,
 125         },
 126         [1] = {
 127                 .code                   = KEY_F1,
 128                 .gpio                   = 102,
 129                 .desc                   = "func 1",
 130                 .active_low             = 1,
 131                 .debounce_interval      = 30,
 132         },
 133         [2] = {
 134                 .code                   = KEY_F2,
 135                 .gpio                   = 103,
 136                 .desc                   = "func 2",
 137                 .active_low             = 1,
 138                 .debounce_interval      = 30,
 139         },
 140         [3] = {
 141                 .code                   = KEY_F3,
 142                 .gpio                   = 104,
 143                 .desc                   = "func 3",
 144                 .active_low             = 1,
 145                 .debounce_interval      = 30,
 146         },
 147         [4] = {
 148                 .code                   = KEY_F4,
 149                 .gpio                   = 105,
 150                 .desc                   = "func 4",
 151                 .active_low             = 1,
 152                 .debounce_interval      = 30,
 153         },
 154         [5] = {
 155                 .code                   = KEY_LEFT,
 156                 .gpio                   = 106,
 157                 .desc                   = "left sw",
 158                 .active_low             = 1,
 159                 .debounce_interval      = 30,
 160         },
 161         [6] = {
 162                 .code                   = KEY_RIGHT,
 163                 .gpio                   = 107,
 164                 .desc                   = "right sw",
 165                 .active_low             = 1,
 166                 .debounce_interval      = 30,
 167         },
 168         [7] = {
 169                 .code                   = KEY_UP,
 170                 .gpio                   = 108,
 171                 .desc                   = "up sw",
 172                 .active_low             = 1,
 173                 .debounce_interval      = 30,
 174         },
 175         [8] = {
 176                 .code                   = KEY_DOWN,
 177                 .gpio                   = 109,
 178                 .desc                   = "down sw",
 179                 .active_low             = 1,
 180                 .debounce_interval      = 30,
 181         },
 182 };
 183
 184 static struct gpio_keys_platform_data ldp_gpio_keys = {
 185         .buttons                = ldp_gpio_keys_buttons,
 186         .nbuttons               = ARRAY_SIZE(ldp_gpio_keys_buttons),
 187         .rep                    = 1,
 188 };
 189
 190 static struct platform_device ldp_gpio_keys_device = {
 191         .name           = "gpio-keys",
 192         .id             = -1,
 193         .dev            = {
 194                 .platform_data  = &ldp_gpio_keys,
 195         },
 196 };
 197
 198 static int ts_gpio;
 199
 200 /**
 201  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 202  *
 203  * @return - void. If request gpio fails then Flag KERN_ERR.
 204  */
 205 static void ads7846_dev_init(void)
 206 {
 207         if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
 208                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 209                 return;
 210         }
 211
 212         gpio_direction_input(ts_gpio);
 213         gpio_set_debounce(ts_gpio, 310);
 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 omap2_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 struct omap_musb_board_data musb_board_data = {
 387         .interface_type         = MUSB_INTERFACE_ULPI,
 388         .mode                   = MUSB_OTG,
 389         .power                  = 100,
 390 };
 391
 392 static struct mtd_partition ldp_nand_partitions[] = {
 393         /* All the partition sizes are listed in terms of NAND block size */
 394         {
 395                 .name           = "X-Loader-NAND",
 396                 .offset         = 0,
 397                 .size           = 4 * (64 * 2048),      /* 512KB, 0x80000 */
 398                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 399         },
 400         {
 401                 .name           = "U-Boot-NAND",
 402                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 403                 .size           = 10 * (64 * 2048),     /* 1.25MB, 0x140000 */
 404                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 405         },
 406         {
 407                 .name           = "Boot Env-NAND",
 408                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
 409                 .size           = 2 * (64 * 2048),      /* 256KB, 0x40000 */
 410         },
 411         {
 412                 .name           = "Kernel-NAND",
 413                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x0200000*/
 414                 .size           = 240 * (64 * 2048),    /* 30M, 0x1E00000 */
 415         },
 416         {
 417                 .name           = "File System - NAND",
 418                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x2000000 */
 419                 .size           = MTDPART_SIZ_FULL,     /* 96MB, 0x6000000 */
 420         },
 421
 422 };
 423
 424 static void __init omap_ldp_init(void)
 425 {
 426         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 427         omap_i2c_init();
 428         platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
 429         ts_gpio = 54;
 430         ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
 431         spi_register_board_info(ldp_spi_board_info,
 432                                 ARRAY_SIZE(ldp_spi_board_info));
 433         ads7846_dev_init();
 434         omap_serial_init();
 435         usb_musb_init(&musb_board_data);
 436         board_nand_init(ldp_nand_partitions,
 437                 ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS);
 438
 439         omap2_hsmmc_init(mmc);
 440         /* link regulators to MMC adapters */
 441         ldp_vmmc1_supply.dev = mmc[0].dev;
 442 }
 443
 444 MACHINE_START(OMAP_LDP, "OMAP LDP board")
 445         .phys_io        = 0x48000000,
 446         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 447         .boot_params    = 0x80000100,
 448         .map_io         = omap3_map_io,
 449         .reserve        = omap_reserve,
 450         .init_irq       = omap_ldp_init_irq,
 451         .init_machine   = omap_ldp_init,
 452         .timer          = &omap_timer,
 453 MACHINE_END