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 55static 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 68static 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 75static 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 85static 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 106static struct matrix_keymap_data board_map_data = { 107 .keymap = board_keymap, 108 .keymap_size = ARRAY_SIZE(board_keymap), 109}; 110 111static 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 118static 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 184static 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 190static 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 198static 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 */ 205static 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 216static int ads7846_get_pendown_state(void) 217{ 218 return !gpio_get_value(ts_gpio); 219} 220 221static struct ads7846_platform_data tsc2046_config __initdata = { 222 .get_pendown_state = ads7846_get_pendown_state, 223 .keep_vref_on = 1, 224}; 225 226static struct omap2_mcspi_device_config tsc2046_mcspi_config = { 227 .turbo_mode = 0, 228 .single_channel = 1, /* 0: slave, 1: master */ 229}; 230 231static 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 247static 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 276static struct platform_device ldp_lcd_device = { 277 .name = "ldp_lcd", 278 .id = -1, 279}; 280 281static struct omap_lcd_config ldp_lcd_config __initdata = { 282 .ctrl_name = "internal", 283}; 284 285static struct omap_board_config_kernel ldp_config[] __initdata = { 286 { OMAP_TAG_LCD, &ldp_lcd_config }, 287}; 288 289static 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 299static struct twl4030_usb_data ldp_usb_data = { 300 .usb_mode = T2_USB_MODE_ULPI, 301}; 302 303static 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 309static struct twl4030_madc_platform_data ldp_madc_data = { 310 .irq_line = 1, 311}; 312 313static 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) */ 318static 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 332static 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 344static 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 353static 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 362static 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 372static 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 379static struct omap_board_mux board_mux[] __initdata = { 380 { .reg_offset = OMAP_MUX_TERMINATOR }, 381}; 382#else 383#define board_mux NULL 384#endif 385 386static struct omap_musb_board_data musb_board_data = { 387 .interface_type = MUSB_INTERFACE_ULPI, 388 .mode = MUSB_OTG, 389 .power = 100, 390}; 391 392static 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 424static 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 444MACHINE_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, 453MACHINE_END 454