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 #include <linux/mmc/host.h>
  31
  32 #include <mach/hardware.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/map.h>
  36
  37 #include <plat/mcspi.h>
  38 #include <mach/gpio.h>
  39 #include <plat/board.h>
  40 #include <plat/common.h>
  41 #include <plat/gpmc.h>
  42 #include <mach/board-zoom.h>
  43
  44 #include <asm/delay.h>
  45 #include <plat/usb.h>
  46
  47 #include "board-flash.h"
  48 #include "mux.h"
  49 #include "hsmmc.h"
  50 #include "control.h"
  51
  52 #define LDP_SMSC911X_CS         1
  53 #define LDP_SMSC911X_GPIO       152
  54 #define DEBUG_BASE              0x08000000
  55 #define LDP_ETHR_START          DEBUG_BASE
  56
  57 static struct resource ldp_smsc911x_resources[] = {
  58         [0] = {
  59                 .start  = LDP_ETHR_START,
  60                 .end    = LDP_ETHR_START + SZ_4K,
  61                 .flags  = IORESOURCE_MEM,
  62         },
  63         [1] = {
  64                 .start  = 0,
  65                 .end    = 0,
  66                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  67         },
  68 };
  69
  70 static struct smsc911x_platform_config ldp_smsc911x_config = {
  71         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  72         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  73         .flags          = SMSC911X_USE_32BIT,
  74         .phy_interface  = PHY_INTERFACE_MODE_MII,
  75 };
  76
  77 static struct platform_device ldp_smsc911x_device = {
  78         .name           = "smsc911x",
  79         .id             = -1,
  80         .num_resources  = ARRAY_SIZE(ldp_smsc911x_resources),
  81         .resource       = ldp_smsc911x_resources,
  82         .dev            = {
  83                 .platform_data = &ldp_smsc911x_config,
  84         },
  85 };
  86
  87 static uint32_t board_keymap[] = {
  88         KEY(0, 0, KEY_1),
  89         KEY(1, 0, KEY_2),
  90         KEY(2, 0, KEY_3),
  91         KEY(0, 1, KEY_4),
  92         KEY(1, 1, KEY_5),
  93         KEY(2, 1, KEY_6),
  94         KEY(3, 1, KEY_F5),
  95         KEY(0, 2, KEY_7),
  96         KEY(1, 2, KEY_8),
  97         KEY(2, 2, KEY_9),
  98         KEY(3, 2, KEY_F6),
  99         KEY(0, 3, KEY_F7),
 100         KEY(1, 3, KEY_0),
 101         KEY(2, 3, KEY_F8),
 102         PERSISTENT_KEY(4, 5),
 103         KEY(4, 4, KEY_VOLUMEUP),
 104         KEY(5, 5, KEY_VOLUMEDOWN),
 105         0
 106 };
 107
 108 static struct matrix_keymap_data board_map_data = {
 109         .keymap                 = board_keymap,
 110         .keymap_size            = ARRAY_SIZE(board_keymap),
 111 };
 112
 113 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
 114         .keymap_data    = &board_map_data,
 115         .rows           = 6,
 116         .cols           = 6,
 117         .rep            = 1,
 118 };
 119
 120 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
 121         [0] = {
 122                 .code                   = KEY_ENTER,
 123                 .gpio                   = 101,
 124                 .desc                   = "enter sw",
 125                 .active_low             = 1,
 126                 .debounce_interval      = 30,
 127         },
 128         [1] = {
 129                 .code                   = KEY_F1,
 130                 .gpio                   = 102,
 131                 .desc                   = "func 1",
 132                 .active_low             = 1,
 133                 .debounce_interval      = 30,
 134         },
 135         [2] = {
 136                 .code                   = KEY_F2,
 137                 .gpio                   = 103,
 138                 .desc                   = "func 2",
 139                 .active_low             = 1,
 140                 .debounce_interval      = 30,
 141         },
 142         [3] = {
 143                 .code                   = KEY_F3,
 144                 .gpio                   = 104,
 145                 .desc                   = "func 3",
 146                 .active_low             = 1,
 147                 .debounce_interval      = 30,
 148         },
 149         [4] = {
 150                 .code                   = KEY_F4,
 151                 .gpio                   = 105,
 152                 .desc                   = "func 4",
 153                 .active_low             = 1,
 154                 .debounce_interval      = 30,
 155         },
 156         [5] = {
 157                 .code                   = KEY_LEFT,
 158                 .gpio                   = 106,
 159                 .desc                   = "left sw",
 160                 .active_low             = 1,
 161                 .debounce_interval      = 30,
 162         },
 163         [6] = {
 164                 .code                   = KEY_RIGHT,
 165                 .gpio                   = 107,
 166                 .desc                   = "right sw",
 167                 .active_low             = 1,
 168                 .debounce_interval      = 30,
 169         },
 170         [7] = {
 171                 .code                   = KEY_UP,
 172                 .gpio                   = 108,
 173                 .desc                   = "up sw",
 174                 .active_low             = 1,
 175                 .debounce_interval      = 30,
 176         },
 177         [8] = {
 178                 .code                   = KEY_DOWN,
 179                 .gpio                   = 109,
 180                 .desc                   = "down sw",
 181                 .active_low             = 1,
 182                 .debounce_interval      = 30,
 183         },
 184 };
 185
 186 static struct gpio_keys_platform_data ldp_gpio_keys = {
 187         .buttons                = ldp_gpio_keys_buttons,
 188         .nbuttons               = ARRAY_SIZE(ldp_gpio_keys_buttons),
 189         .rep                    = 1,
 190 };
 191
 192 static struct platform_device ldp_gpio_keys_device = {
 193         .name           = "gpio-keys",
 194         .id             = -1,
 195         .dev            = {
 196                 .platform_data  = &ldp_gpio_keys,
 197         },
 198 };
 199
 200 static int ts_gpio;
 201
 202 /**
 203  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 204  *
 205  * @return - void. If request gpio fails then Flag KERN_ERR.
 206  */
 207 static void ads7846_dev_init(void)
 208 {
 209         if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
 210                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 211                 return;
 212         }
 213
 214         gpio_direction_input(ts_gpio);
 215         gpio_set_debounce(ts_gpio, 310);
 216 }
 217
 218 static int ads7846_get_pendown_state(void)
 219 {
 220         return !gpio_get_value(ts_gpio);
 221 }
 222
 223 static struct ads7846_platform_data tsc2046_config __initdata = {
 224         .get_pendown_state      = ads7846_get_pendown_state,
 225         .keep_vref_on           = 1,
 226 };
 227
 228 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 229         .turbo_mode     = 0,
 230         .single_channel = 1,    /* 0: slave, 1: master */
 231 };
 232
 233 static struct spi_board_info ldp_spi_board_info[] __initdata = {
 234         [0] = {
 235                 /*
 236                  * TSC2046 operates at a max freqency of 2MHz, so
 237                  * operate slightly below at 1.5MHz
 238                  */
 239                 .modalias               = "ads7846",
 240                 .bus_num                = 1,
 241                 .chip_select            = 0,
 242                 .max_speed_hz           = 1500000,
 243                 .controller_data        = &tsc2046_mcspi_config,
 244                 .irq                    = 0,
 245                 .platform_data          = &tsc2046_config,
 246         },
 247 };
 248
 249 static inline void __init ldp_init_smsc911x(void)
 250 {
 251         int eth_cs;
 252         unsigned long cs_mem_base;
 253         int eth_gpio = 0;
 254
 255         eth_cs = LDP_SMSC911X_CS;
 256
 257         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 258                 printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
 259                 return;
 260         }
 261
 262         ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
 263         ldp_smsc911x_resources[0].end   = cs_mem_base + 0xff;
 264         udelay(100);
 265
 266         eth_gpio = LDP_SMSC911X_GPIO;
 267
 268         ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
 269
 270         if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
 271                 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
 272                                 eth_gpio);
 273                 return;
 274         }
 275         gpio_direction_input(eth_gpio);
 276 }
 277
 278 static struct platform_device ldp_lcd_device = {
 279         .name           = "ldp_lcd",
 280         .id             = -1,
 281 };
 282
 283 static struct omap_lcd_config ldp_lcd_config __initdata = {
 284         .ctrl_name      = "internal",
 285 };
 286
 287 static struct omap_board_config_kernel ldp_config[] __initdata = {
 288         { OMAP_TAG_LCD,         &ldp_lcd_config },
 289 };
 290
 291 static void __init omap_ldp_init_irq(void)
 292 {
 293         omap_board_config = ldp_config;
 294         omap_board_config_size = ARRAY_SIZE(ldp_config);
 295         omap2_init_common_hw(NULL, NULL);
 296         omap_init_irq();
 297         omap_gpio_init();
 298         ldp_init_smsc911x();
 299 }
 300
 301 static struct twl4030_usb_data ldp_usb_data = {
 302         .usb_mode       = T2_USB_MODE_ULPI,
 303 };
 304
 305 static struct twl4030_gpio_platform_data ldp_gpio_data = {
 306         .gpio_base      = OMAP_MAX_GPIO_LINES,
 307         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 308         .irq_end        = TWL4030_GPIO_IRQ_END,
 309 };
 310
 311 static struct twl4030_madc_platform_data ldp_madc_data = {
 312         .irq_line       = 1,
 313 };
 314
 315 static struct regulator_consumer_supply ldp_vmmc1_supply = {
 316         .supply                 = "vmmc",
 317 };
 318
 319 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 320 static struct regulator_init_data ldp_vmmc1 = {
 321         .constraints = {
 322                 .min_uV                 = 1850000,
 323                 .max_uV                 = 3150000,
 324                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 325                                         | REGULATOR_MODE_STANDBY,
 326                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 327                                         | REGULATOR_CHANGE_MODE
 328                                         | REGULATOR_CHANGE_STATUS,
 329         },
 330         .num_consumer_supplies  = 1,
 331         .consumer_supplies      = &ldp_vmmc1_supply,
 332 };
 333
 334 static struct twl4030_platform_data ldp_twldata = {
 335         .irq_base       = TWL4030_IRQ_BASE,
 336         .irq_end        = TWL4030_IRQ_END,
 337
 338         /* platform_data for children goes here */
 339         .madc           = &ldp_madc_data,
 340         .usb            = &ldp_usb_data,
 341         .vmmc1          = &ldp_vmmc1,
 342         .gpio           = &ldp_gpio_data,
 343         .keypad         = &ldp_kp_twl4030_data,
 344 };
 345
 346 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
 347         {
 348                 I2C_BOARD_INFO("twl4030", 0x48),
 349                 .flags = I2C_CLIENT_WAKE,
 350                 .irq = INT_34XX_SYS_NIRQ,
 351                 .platform_data = &ldp_twldata,
 352         },
 353 };
 354
 355 static int __init omap_i2c_init(void)
 356 {
 357         omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
 358                         ARRAY_SIZE(ldp_i2c_boardinfo));
 359         omap_register_i2c_bus(2, 400, NULL, 0);
 360         omap_register_i2c_bus(3, 400, NULL, 0);
 361         return 0;
 362 }
 363
 364 static struct omap2_hsmmc_info mmc[] __initdata = {
 365         {
 366                 .mmc            = 1,
 367                 .caps           = MMC_CAP_4_BIT_DATA,
 368                 .gpio_cd        = -EINVAL,
 369                 .gpio_wp        = -EINVAL,
 370         },
 371         {}      /* Terminator */
 372 };
 373
 374 static struct platform_device *ldp_devices[] __initdata = {
 375         &ldp_smsc911x_device,
 376         &ldp_lcd_device,
 377         &ldp_gpio_keys_device,
 378 };
 379
 380 #ifdef CONFIG_OMAP_MUX
 381 static struct omap_board_mux board_mux[] __initdata = {
 382         { .reg_offset = OMAP_MUX_TERMINATOR },
 383 };
 384 #else
 385 #define board_mux       NULL
 386 #endif
 387
 388 static struct omap_musb_board_data musb_board_data = {
 389         .interface_type         = MUSB_INTERFACE_ULPI,
 390         .mode                   = MUSB_OTG,
 391         .power                  = 100,
 392 };
 393
 394 static struct mtd_partition ldp_nand_partitions[] = {
 395         /* All the partition sizes are listed in terms of NAND block size */
 396         {
 397                 .name           = "X-Loader-NAND",
 398                 .offset         = 0,
 399                 .size           = 4 * (64 * 2048),      /* 512KB, 0x80000 */
 400                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 401         },
 402         {
 403                 .name           = "U-Boot-NAND",
 404                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 405                 .size           = 10 * (64 * 2048),     /* 1.25MB, 0x140000 */
 406                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 407         },
 408         {
 409                 .name           = "Boot Env-NAND",
 410                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
 411                 .size           = 2 * (64 * 2048),      /* 256KB, 0x40000 */
 412         },
 413         {
 414                 .name           = "Kernel-NAND",
 415                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x0200000*/
 416                 .size           = 240 * (64 * 2048),    /* 30M, 0x1E00000 */
 417         },
 418         {
 419                 .name           = "File System - NAND",
 420                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x2000000 */
 421                 .size           = MTDPART_SIZ_FULL,     /* 96MB, 0x6000000 */
 422         },
 423
 424 };
 425
 426 static void __init omap_ldp_init(void)
 427 {
 428         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 429         omap_i2c_init();
 430         platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
 431         ts_gpio = 54;
 432         ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
 433         spi_register_board_info(ldp_spi_board_info,
 434                                 ARRAY_SIZE(ldp_spi_board_info));
 435         ads7846_dev_init();
 436         omap_serial_init();
 437         usb_musb_init(&musb_board_data);
 438         board_nand_init(ldp_nand_partitions,
 439                 ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS);
 440
 441         omap2_hsmmc_init(mmc);
 442         /* link regulators to MMC adapters */
 443         ldp_vmmc1_supply.dev = mmc[0].dev;
 444 }
 445
 446 MACHINE_START(OMAP_LDP, "OMAP LDP board")
 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