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/control.h>
  46 #include <plat/usb.h>
  47
  48 #include "mux.h"
  49 #include "hsmmc.h"
  50
  51 #define LDP_SMSC911X_CS         1
  52 #define LDP_SMSC911X_GPIO       152
  53 #define DEBUG_BASE              0x08000000
  54 #define LDP_ETHR_START          DEBUG_BASE
  55
  56 static struct resource ldp_smsc911x_resources[] = {
  57         [0] = {
  58                 .start  = LDP_ETHR_START,
  59                 .end    = LDP_ETHR_START + SZ_4K,
  60                 .flags  = IORESOURCE_MEM,
  61         },
  62         [1] = {
  63                 .start  = 0,
  64                 .end    = 0,
  65                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  66         },
  67 };
  68
  69 static struct smsc911x_platform_config ldp_smsc911x_config = {
  70         .irq_polarity   = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
  71         .irq_type       = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
  72         .flags          = SMSC911X_USE_32BIT,
  73         .phy_interface  = PHY_INTERFACE_MODE_MII,
  74 };
  75
  76 static struct platform_device ldp_smsc911x_device = {
  77         .name           = "smsc911x",
  78         .id             = -1,
  79         .num_resources  = ARRAY_SIZE(ldp_smsc911x_resources),
  80         .resource       = ldp_smsc911x_resources,
  81         .dev            = {
  82                 .platform_data = &ldp_smsc911x_config,
  83         },
  84 };
  85
  86 static int board_keymap[] = {
  87         KEY(0, 0, KEY_1),
  88         KEY(1, 0, KEY_2),
  89         KEY(2, 0, KEY_3),
  90         KEY(0, 1, KEY_4),
  91         KEY(1, 1, KEY_5),
  92         KEY(2, 1, KEY_6),
  93         KEY(3, 1, KEY_F5),
  94         KEY(0, 2, KEY_7),
  95         KEY(1, 2, KEY_8),
  96         KEY(2, 2, KEY_9),
  97         KEY(3, 2, KEY_F6),
  98         KEY(0, 3, KEY_F7),
  99         KEY(1, 3, KEY_0),
 100         KEY(2, 3, KEY_F8),
 101         PERSISTENT_KEY(4, 5),
 102         KEY(4, 4, KEY_VOLUMEUP),
 103         KEY(5, 5, KEY_VOLUMEDOWN),
 104         0
 105 };
 106
 107 static struct matrix_keymap_data board_map_data = {
 108         .keymap                 = board_keymap,
 109         .keymap_size            = ARRAY_SIZE(board_keymap),
 110 };
 111
 112 static struct twl4030_keypad_data ldp_kp_twl4030_data = {
 113         .keymap_data    = &board_map_data,
 114         .rows           = 6,
 115         .cols           = 6,
 116         .rep            = 1,
 117 };
 118
 119 static struct gpio_keys_button ldp_gpio_keys_buttons[] = {
 120         [0] = {
 121                 .code                   = KEY_ENTER,
 122                 .gpio                   = 101,
 123                 .desc                   = "enter sw",
 124                 .active_low             = 1,
 125                 .debounce_interval      = 30,
 126         },
 127         [1] = {
 128                 .code                   = KEY_F1,
 129                 .gpio                   = 102,
 130                 .desc                   = "func 1",
 131                 .active_low             = 1,
 132                 .debounce_interval      = 30,
 133         },
 134         [2] = {
 135                 .code                   = KEY_F2,
 136                 .gpio                   = 103,
 137                 .desc                   = "func 2",
 138                 .active_low             = 1,
 139                 .debounce_interval      = 30,
 140         },
 141         [3] = {
 142                 .code                   = KEY_F3,
 143                 .gpio                   = 104,
 144                 .desc                   = "func 3",
 145                 .active_low             = 1,
 146                 .debounce_interval      = 30,
 147         },
 148         [4] = {
 149                 .code                   = KEY_F4,
 150                 .gpio                   = 105,
 151                 .desc                   = "func 4",
 152                 .active_low             = 1,
 153                 .debounce_interval      = 30,
 154         },
 155         [5] = {
 156                 .code                   = KEY_LEFT,
 157                 .gpio                   = 106,
 158                 .desc                   = "left sw",
 159                 .active_low             = 1,
 160                 .debounce_interval      = 30,
 161         },
 162         [6] = {
 163                 .code                   = KEY_RIGHT,
 164                 .gpio                   = 107,
 165                 .desc                   = "right sw",
 166                 .active_low             = 1,
 167                 .debounce_interval      = 30,
 168         },
 169         [7] = {
 170                 .code                   = KEY_UP,
 171                 .gpio                   = 108,
 172                 .desc                   = "up sw",
 173                 .active_low             = 1,
 174                 .debounce_interval      = 30,
 175         },
 176         [8] = {
 177                 .code                   = KEY_DOWN,
 178                 .gpio                   = 109,
 179                 .desc                   = "down sw",
 180                 .active_low             = 1,
 181                 .debounce_interval      = 30,
 182         },
 183 };
 184
 185 static struct gpio_keys_platform_data ldp_gpio_keys = {
 186         .buttons                = ldp_gpio_keys_buttons,
 187         .nbuttons               = ARRAY_SIZE(ldp_gpio_keys_buttons),
 188         .rep                    = 1,
 189 };
 190
 191 static struct platform_device ldp_gpio_keys_device = {
 192         .name           = "gpio-keys",
 193         .id             = -1,
 194         .dev            = {
 195                 .platform_data  = &ldp_gpio_keys,
 196         },
 197 };
 198
 199 static int ts_gpio;
 200
 201 /**
 202  * @brief ads7846_dev_init : Requests & sets GPIO line for pen-irq
 203  *
 204  * @return - void. If request gpio fails then Flag KERN_ERR.
 205  */
 206 static void ads7846_dev_init(void)
 207 {
 208         if (gpio_request(ts_gpio, "ads7846 irq") < 0) {
 209                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 210                 return;
 211         }
 212
 213         gpio_direction_input(ts_gpio);
 214         gpio_set_debounce(ts_gpio, 310);
 215 }
 216
 217 static int ads7846_get_pendown_state(void)
 218 {
 219         return !gpio_get_value(ts_gpio);
 220 }
 221
 222 static struct ads7846_platform_data tsc2046_config __initdata = {
 223         .get_pendown_state      = ads7846_get_pendown_state,
 224         .keep_vref_on           = 1,
 225 };
 226
 227 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 228         .turbo_mode     = 0,
 229         .single_channel = 1,    /* 0: slave, 1: master */
 230 };
 231
 232 static struct spi_board_info ldp_spi_board_info[] __initdata = {
 233         [0] = {
 234                 /*
 235                  * TSC2046 operates at a max freqency of 2MHz, so
 236                  * operate slightly below at 1.5MHz
 237                  */
 238                 .modalias               = "ads7846",
 239                 .bus_num                = 1,
 240                 .chip_select            = 0,
 241                 .max_speed_hz           = 1500000,
 242                 .controller_data        = &tsc2046_mcspi_config,
 243                 .irq                    = 0,
 244                 .platform_data          = &tsc2046_config,
 245         },
 246 };
 247
 248 static inline void __init ldp_init_smsc911x(void)
 249 {
 250         int eth_cs;
 251         unsigned long cs_mem_base;
 252         int eth_gpio = 0;
 253
 254         eth_cs = LDP_SMSC911X_CS;
 255
 256         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 257                 printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
 258                 return;
 259         }
 260
 261         ldp_smsc911x_resources[0].start = cs_mem_base + 0x0;
 262         ldp_smsc911x_resources[0].end   = cs_mem_base + 0xff;
 263         udelay(100);
 264
 265         eth_gpio = LDP_SMSC911X_GPIO;
 266
 267         ldp_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
 268
 269         if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
 270                 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
 271                                 eth_gpio);
 272                 return;
 273         }
 274         gpio_direction_input(eth_gpio);
 275 }
 276
 277 static struct platform_device ldp_lcd_device = {
 278         .name           = "ldp_lcd",
 279         .id             = -1,
 280 };
 281
 282 static struct omap_lcd_config ldp_lcd_config __initdata = {
 283         .ctrl_name      = "internal",
 284 };
 285
 286 static struct omap_board_config_kernel ldp_config[] __initdata = {
 287         { OMAP_TAG_LCD,         &ldp_lcd_config },
 288 };
 289
 290 static void __init omap_ldp_init_irq(void)
 291 {
 292         omap_board_config = ldp_config;
 293         omap_board_config_size = ARRAY_SIZE(ldp_config);
 294         omap2_init_common_hw(NULL, NULL);
 295         omap_init_irq();
 296         omap_gpio_init();
 297         ldp_init_smsc911x();
 298 }
 299
 300 static struct twl4030_usb_data ldp_usb_data = {
 301         .usb_mode       = T2_USB_MODE_ULPI,
 302 };
 303
 304 static struct twl4030_gpio_platform_data ldp_gpio_data = {
 305         .gpio_base      = OMAP_MAX_GPIO_LINES,
 306         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 307         .irq_end        = TWL4030_GPIO_IRQ_END,
 308 };
 309
 310 static struct twl4030_madc_platform_data ldp_madc_data = {
 311         .irq_line       = 1,
 312 };
 313
 314 static struct regulator_consumer_supply ldp_vmmc1_supply = {
 315         .supply                 = "vmmc",
 316 };
 317
 318 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 319 static struct regulator_init_data ldp_vmmc1 = {
 320         .constraints = {
 321                 .min_uV                 = 1850000,
 322                 .max_uV                 = 3150000,
 323                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 324                                         | REGULATOR_MODE_STANDBY,
 325                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 326                                         | REGULATOR_CHANGE_MODE
 327                                         | REGULATOR_CHANGE_STATUS,
 328         },
 329         .num_consumer_supplies  = 1,
 330         .consumer_supplies      = &ldp_vmmc1_supply,
 331 };
 332
 333 static struct twl4030_platform_data ldp_twldata = {
 334         .irq_base       = TWL4030_IRQ_BASE,
 335         .irq_end        = TWL4030_IRQ_END,
 336
 337         /* platform_data for children goes here */
 338         .madc           = &ldp_madc_data,
 339         .usb            = &ldp_usb_data,
 340         .vmmc1          = &ldp_vmmc1,
 341         .gpio           = &ldp_gpio_data,
 342         .keypad         = &ldp_kp_twl4030_data,
 343 };
 344
 345 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
 346         {
 347                 I2C_BOARD_INFO("twl4030", 0x48),
 348                 .flags = I2C_CLIENT_WAKE,
 349                 .irq = INT_34XX_SYS_NIRQ,
 350                 .platform_data = &ldp_twldata,
 351         },
 352 };
 353
 354 static int __init omap_i2c_init(void)
 355 {
 356         omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
 357                         ARRAY_SIZE(ldp_i2c_boardinfo));
 358         omap_register_i2c_bus(2, 400, NULL, 0);
 359         omap_register_i2c_bus(3, 400, NULL, 0);
 360         return 0;
 361 }
 362
 363 static struct omap2_hsmmc_info mmc[] __initdata = {
 364         {
 365                 .mmc            = 1,
 366                 .caps           = MMC_CAP_4_BIT_DATA,
 367                 .gpio_cd        = -EINVAL,
 368                 .gpio_wp        = -EINVAL,
 369         },
 370         {}      /* Terminator */
 371 };
 372
 373 static struct platform_device *ldp_devices[] __initdata = {
 374         &ldp_smsc911x_device,
 375         &ldp_lcd_device,
 376         &ldp_gpio_keys_device,
 377 };
 378
 379 #ifdef CONFIG_OMAP_MUX
 380 static struct omap_board_mux board_mux[] __initdata = {
 381         { .reg_offset = OMAP_MUX_TERMINATOR },
 382 };
 383 #else
 384 #define board_mux       NULL
 385 #endif
 386
 387 static struct omap_musb_board_data musb_board_data = {
 388         .interface_type         = MUSB_INTERFACE_ULPI,
 389         .mode                   = MUSB_OTG,
 390         .power                  = 100,
 391 };
 392
 393 static struct mtd_partition ldp_nand_partitions[] = {
 394         /* All the partition sizes are listed in terms of NAND block size */
 395         {
 396                 .name           = "X-Loader-NAND",
 397                 .offset         = 0,
 398                 .size           = 4 * (64 * 2048),      /* 512KB, 0x80000 */
 399                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 400         },
 401         {
 402                 .name           = "U-Boot-NAND",
 403                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
 404                 .size           = 10 * (64 * 2048),     /* 1.25MB, 0x140000 */
 405                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
 406         },
 407         {
 408                 .name           = "Boot Env-NAND",
 409                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
 410                 .size           = 2 * (64 * 2048),      /* 256KB, 0x40000 */
 411         },
 412         {
 413                 .name           = "Kernel-NAND",
 414                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x0200000*/
 415                 .size           = 240 * (64 * 2048),    /* 30M, 0x1E00000 */
 416         },
 417         {
 418                 .name           = "File System - NAND",
 419                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x2000000 */
 420                 .size           = MTDPART_SIZ_FULL,     /* 96MB, 0x6000000 */
 421         },
 422
 423 };
 424
 425 static void __init omap_ldp_init(void)
 426 {
 427         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
 428         omap_i2c_init();
 429         platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
 430         ts_gpio = 54;
 431         ldp_spi_board_info[0].irq = gpio_to_irq(ts_gpio);
 432         spi_register_board_info(ldp_spi_board_info,
 433                                 ARRAY_SIZE(ldp_spi_board_info));
 434         ads7846_dev_init();
 435         omap_serial_init();
 436         usb_musb_init(&musb_board_data);
 437         board_nand_init(ldp_nand_partitions,
 438                 ARRAY_SIZE(ldp_nand_partitions), ZOOM_NAND_CS);
 439
 440         omap2_hsmmc_init(mmc);
 441         /* link regulators to MMC adapters */
 442         ldp_vmmc1_supply.dev = mmc[0].dev;
 443 }
 444
 445 MACHINE_START(OMAP_LDP, "OMAP LDP board")
 446         .phys_io        = 0x48000000,
 447         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 448         .boot_params    = 0x80000100,
 449         .map_io         = omap3_map_io,
 450         .reserve        = omap_reserve,
 451         .init_irq       = omap_ldp_init_irq,
 452         .init_machine   = omap_ldp_init,
 453         .timer          = &omap_timer,
 454 MACHINE_END