arch/mips/jz4740/board-qi_lb60.c

   1 /*
   2  * linux/arch/mips/jz4740/board-qi_lb60.c
   3  *
   4  * QI_LB60 board support
   5  *
   6  * Copyright (c) 2009 Qi Hardware inc.,
   7  * Author: Xiangfu Liu <xiangfu@qi-hardware.com>
   8  * Copyright 2010, Lars-Peter Clausen <lars@metafoo.de>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 or later
  12  * as published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/gpio.h>
  18
  19 #include <linux/input.h>
  20 #include <linux/gpio_keys.h>
  21 #include <linux/input/matrix_keypad.h>
  22 #include <linux/spi/spi.h>
  23 #include <linux/spi/spi_gpio.h>
  24 #include <linux/power_supply.h>
  25 #include <linux/power/jz4740-battery.h>
  26 #include <linux/power/gpio-charger.h>
  27
  28 #include <asm/mach-jz4740/jz4740_fb.h>
  29 #include <asm/mach-jz4740/jz4740_mmc.h>
  30 #include <asm/mach-jz4740/jz4740_nand.h>
  31
  32 #include <linux/regulator/fixed.h>
  33 #include <linux/regulator/machine.h>
  34
  35 #include <linux/leds_pwm.h>
  36
  37 #include <asm/mach-jz4740/platform.h>
  38
  39 #include "clock.h"
  40
  41 static bool is_avt2;
  42
  43 /* GPIOs */
  44 #define QI_LB60_GPIO_SD_CD              JZ_GPIO_PORTD(0)
  45 #define QI_LB60_GPIO_SD_VCC_EN_N        JZ_GPIO_PORTD(2)
  46
  47 #define QI_LB60_GPIO_KEYOUT(x)          (JZ_GPIO_PORTC(10) + (x))
  48 #define QI_LB60_GPIO_KEYIN(x)           (JZ_GPIO_PORTD(18) + (x))
  49 #define QI_LB60_GPIO_KEYIN8             JZ_GPIO_PORTD(26)
  50
  51 /* NAND */
  52 static struct nand_ecclayout qi_lb60_ecclayout_1gb = {
  53         .eccbytes = 36,
  54         .eccpos = {
  55                 6,  7,  8,  9,  10, 11, 12, 13,
  56                 14, 15, 16, 17, 18, 19, 20, 21,
  57                 22, 23, 24, 25, 26, 27, 28, 29,
  58                 30, 31, 32, 33, 34, 35, 36, 37,
  59                 38, 39, 40, 41
  60         },
  61         .oobfree = {
  62                 { .offset = 2, .length = 4 },
  63                 { .offset = 42, .length = 22 }
  64         },
  65 };
  66
  67 /* Early prototypes of the QI LB60 had only 1GB of NAND.
  68  * In order to support these devices as well the partition and ecc layout is
  69  * initialized depending on the NAND size */
  70 static struct mtd_partition qi_lb60_partitions_1gb[] = {
  71         {
  72                 .name = "NAND BOOT partition",
  73                 .offset = 0 * 0x100000,
  74                 .size = 4 * 0x100000,
  75         },
  76         {
  77                 .name = "NAND KERNEL partition",
  78                 .offset = 4 * 0x100000,
  79                 .size = 4 * 0x100000,
  80         },
  81         {
  82                 .name = "NAND ROOTFS partition",
  83                 .offset = 8 * 0x100000,
  84                 .size = (504 + 512) * 0x100000,
  85         },
  86 };
  87
  88 static struct nand_ecclayout qi_lb60_ecclayout_2gb = {
  89         .eccbytes = 72,
  90         .eccpos = {
  91                 12, 13, 14, 15, 16, 17, 18, 19,
  92                 20, 21, 22, 23, 24, 25, 26, 27,
  93                 28, 29, 30, 31, 32, 33, 34, 35,
  94                 36, 37, 38, 39, 40, 41, 42, 43,
  95                 44, 45, 46, 47, 48, 49, 50, 51,
  96                 52, 53, 54, 55, 56, 57, 58, 59,
  97                 60, 61, 62, 63, 64, 65, 66, 67,
  98                 68, 69, 70, 71, 72, 73, 74, 75,
  99                 76, 77, 78, 79, 80, 81, 82, 83
 100         },
 101         .oobfree = {
 102                 { .offset = 2, .length = 10 },
 103                 { .offset = 84, .length = 44 },
 104         },
 105 };
 106
 107 static struct mtd_partition qi_lb60_partitions_2gb[] = {
 108         {
 109                 .name = "NAND BOOT partition",
 110                 .offset = 0 * 0x100000,
 111                 .size = 4 * 0x100000,
 112         },
 113         {
 114                 .name = "NAND KERNEL partition",
 115                 .offset = 4 * 0x100000,
 116                 .size = 4 * 0x100000,
 117         },
 118         {
 119                 .name = "NAND ROOTFS partition",
 120                 .offset = 8 * 0x100000,
 121                 .size = (504 + 512 + 1024) * 0x100000,
 122         },
 123 };
 124
 125 static void qi_lb60_nand_ident(struct platform_device *pdev,
 126                 struct nand_chip *chip, struct mtd_partition **partitions,
 127                 int *num_partitions)
 128 {
 129         if (chip->page_shift == 12) {
 130                 chip->ecc.layout = &qi_lb60_ecclayout_2gb;
 131                 *partitions = qi_lb60_partitions_2gb;
 132                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
 133         } else {
 134                 chip->ecc.layout = &qi_lb60_ecclayout_1gb;
 135                 *partitions = qi_lb60_partitions_1gb;
 136                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
 137         }
 138 }
 139
 140 static struct jz_nand_platform_data qi_lb60_nand_pdata = {
 141         .ident_callback = qi_lb60_nand_ident,
 142         .busy_gpio = 94,
 143 };
 144
 145 /* Keyboard*/
 146
 147 #define KEY_QI_QI       KEY_F13
 148 #define KEY_QI_UPRED    KEY_RIGHTALT
 149 #define KEY_QI_VOLUP    KEY_VOLUMEUP
 150 #define KEY_QI_VOLDOWN  KEY_VOLUMEDOWN
 151 #define KEY_QI_FN       KEY_LEFTCTRL
 152
 153 static const uint32_t qi_lb60_keymap[] = {
 154         KEY(0, 0, KEY_F1),      /* S2 */
 155         KEY(0, 1, KEY_F2),      /* S3 */
 156         KEY(0, 2, KEY_F3),      /* S4 */
 157         KEY(0, 3, KEY_F4),      /* S5 */
 158         KEY(0, 4, KEY_F5),      /* S6 */
 159         KEY(0, 5, KEY_F6),      /* S7 */
 160         KEY(0, 6, KEY_F7),      /* S8 */
 161
 162         KEY(1, 0, KEY_Q),       /* S10 */
 163         KEY(1, 1, KEY_W),       /* S11 */
 164         KEY(1, 2, KEY_E),       /* S12 */
 165         KEY(1, 3, KEY_R),       /* S13 */
 166         KEY(1, 4, KEY_T),       /* S14 */
 167         KEY(1, 5, KEY_Y),       /* S15 */
 168         KEY(1, 6, KEY_U),       /* S16 */
 169         KEY(1, 7, KEY_I),       /* S17 */
 170         KEY(2, 0, KEY_A),       /* S18 */
 171         KEY(2, 1, KEY_S),       /* S19 */
 172         KEY(2, 2, KEY_D),       /* S20 */
 173         KEY(2, 3, KEY_F),       /* S21 */
 174         KEY(2, 4, KEY_G),       /* S22 */
 175         KEY(2, 5, KEY_H),       /* S23 */
 176         KEY(2, 6, KEY_J),       /* S24 */
 177         KEY(2, 7, KEY_K),       /* S25 */
 178         KEY(3, 0, KEY_ESC),     /* S26 */
 179         KEY(3, 1, KEY_Z),       /* S27 */
 180         KEY(3, 2, KEY_X),       /* S28 */
 181         KEY(3, 3, KEY_C),       /* S29 */
 182         KEY(3, 4, KEY_V),       /* S30 */
 183         KEY(3, 5, KEY_B),       /* S31 */
 184         KEY(3, 6, KEY_N),       /* S32 */
 185         KEY(3, 7, KEY_M),       /* S33 */
 186         KEY(4, 0, KEY_TAB),     /* S34 */
 187         KEY(4, 1, KEY_CAPSLOCK),        /* S35 */
 188         KEY(4, 2, KEY_BACKSLASH),       /* S36 */
 189         KEY(4, 3, KEY_APOSTROPHE),      /* S37 */
 190         KEY(4, 4, KEY_COMMA),   /* S38 */
 191         KEY(4, 5, KEY_DOT),     /* S39 */
 192         KEY(4, 6, KEY_SLASH),   /* S40 */
 193         KEY(4, 7, KEY_UP),      /* S41 */
 194         KEY(5, 0, KEY_O),       /* S42 */
 195         KEY(5, 1, KEY_L),       /* S43 */
 196         KEY(5, 2, KEY_EQUAL),   /* S44 */
 197         KEY(5, 3, KEY_QI_UPRED),        /* S45 */
 198         KEY(5, 4, KEY_SPACE),   /* S46 */
 199         KEY(5, 5, KEY_QI_QI),   /* S47 */
 200         KEY(5, 6, KEY_RIGHTCTRL),       /* S48 */
 201         KEY(5, 7, KEY_LEFT),    /* S49 */
 202         KEY(6, 0, KEY_F8),      /* S50 */
 203         KEY(6, 1, KEY_P),       /* S51 */
 204         KEY(6, 2, KEY_BACKSPACE),/* S52 */
 205         KEY(6, 3, KEY_ENTER),   /* S53 */
 206         KEY(6, 4, KEY_QI_VOLUP),        /* S54 */
 207         KEY(6, 5, KEY_QI_VOLDOWN),      /* S55 */
 208         KEY(6, 6, KEY_DOWN),    /* S56 */
 209         KEY(6, 7, KEY_RIGHT),   /* S57 */
 210
 211         KEY(7, 0, KEY_LEFTSHIFT),       /* S58 */
 212         KEY(7, 1, KEY_LEFTALT), /* S59 */
 213         KEY(7, 2, KEY_QI_FN),   /* S60 */
 214 };
 215
 216 static const struct matrix_keymap_data qi_lb60_keymap_data = {
 217         .keymap         = qi_lb60_keymap,
 218         .keymap_size    = ARRAY_SIZE(qi_lb60_keymap),
 219 };
 220
 221 static const unsigned int qi_lb60_keypad_cols[] = {
 222         QI_LB60_GPIO_KEYOUT(0),
 223         QI_LB60_GPIO_KEYOUT(1),
 224         QI_LB60_GPIO_KEYOUT(2),
 225         QI_LB60_GPIO_KEYOUT(3),
 226         QI_LB60_GPIO_KEYOUT(4),
 227         QI_LB60_GPIO_KEYOUT(5),
 228         QI_LB60_GPIO_KEYOUT(6),
 229         QI_LB60_GPIO_KEYOUT(7),
 230 };
 231
 232 static const unsigned int qi_lb60_keypad_rows[] = {
 233         QI_LB60_GPIO_KEYIN(0),
 234         QI_LB60_GPIO_KEYIN(1),
 235         QI_LB60_GPIO_KEYIN(2),
 236         QI_LB60_GPIO_KEYIN(3),
 237         QI_LB60_GPIO_KEYIN(4),
 238         QI_LB60_GPIO_KEYIN(5),
 239         QI_LB60_GPIO_KEYIN(6),
 240         QI_LB60_GPIO_KEYIN8,
 241 };
 242
 243 static struct matrix_keypad_platform_data qi_lb60_pdata = {
 244         .keymap_data = &qi_lb60_keymap_data,
 245         .col_gpios      = qi_lb60_keypad_cols,
 246         .row_gpios      = qi_lb60_keypad_rows,
 247         .num_col_gpios  = ARRAY_SIZE(qi_lb60_keypad_cols),
 248         .num_row_gpios  = ARRAY_SIZE(qi_lb60_keypad_rows),
 249         .col_scan_delay_us      = 10,
 250         .debounce_ms            = 10,
 251         .wakeup                 = 1,
 252         .active_low             = 1,
 253 };
 254
 255 static struct platform_device qi_lb60_keypad = {
 256         .name           = "matrix-keypad",
 257         .id             = -1,
 258         .dev            = {
 259                 .platform_data = &qi_lb60_pdata,
 260         },
 261 };
 262
 263 /* Display */
 264 static struct fb_videomode qi_lb60_video_modes[] = {
 265         {
 266                 .name = "320x240",
 267                 .xres = 320,
 268                 .yres = 240,
 269                 .refresh = 30,
 270                 .left_margin = 140,
 271                 .right_margin = 273,
 272                 .upper_margin = 20,
 273                 .lower_margin = 2,
 274                 .hsync_len = 1,
 275                 .vsync_len = 1,
 276                 .sync = 0,
 277                 .vmode = FB_VMODE_NONINTERLACED,
 278         },
 279 };
 280
 281 static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
 282         .width          = 60,
 283         .height         = 45,
 284         .num_modes      = ARRAY_SIZE(qi_lb60_video_modes),
 285         .modes          = qi_lb60_video_modes,
 286         .bpp            = 24,
 287         .lcd_type       = JZ_LCD_TYPE_8BIT_SERIAL,
 288         .pixclk_falling_edge = 1,
 289 };
 290
 291 struct spi_gpio_platform_data spigpio_platform_data = {
 292         .sck = JZ_GPIO_PORTC(23),
 293         .mosi = JZ_GPIO_PORTC(22),
 294         .miso = -1,
 295         .num_chipselect = 1,
 296 };
 297
 298 static struct platform_device spigpio_device = {
 299         .name = "spi_gpio",
 300         .id   = 1,
 301         .dev = {
 302                 .platform_data = &spigpio_platform_data,
 303         },
 304 };
 305
 306 static struct spi_board_info qi_lb60_spi_board_info[] = {
 307         {
 308                 .modalias = "ili8960",
 309                 .controller_data = (void *)JZ_GPIO_PORTC(21),
 310                 .chip_select = 0,
 311                 .bus_num = 1,
 312                 .max_speed_hz = 30 * 1000,
 313                 .mode = SPI_3WIRE,
 314         },
 315 };
 316
 317 /* Battery */
 318 static struct jz_battery_platform_data qi_lb60_battery_pdata = {
 319         .gpio_charge =  JZ_GPIO_PORTC(27),
 320         .gpio_charge_active_low = 1,
 321         .info = {
 322                 .name = "battery",
 323                 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
 324                 .voltage_max_design = 4200000,
 325                 .voltage_min_design = 3600000,
 326         },
 327 };
 328
 329 /* GPIO Key: power */
 330 static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
 331         [0] = {
 332                 .code           = KEY_POWER,
 333                 .gpio           = JZ_GPIO_PORTD(29),
 334                 .active_low     = 1,
 335                 .desc           = "Power",
 336                 .wakeup         = 1,
 337         },
 338 };
 339
 340 static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
 341         .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
 342         .buttons = qi_lb60_gpio_keys_buttons,
 343 };
 344
 345 static struct platform_device qi_lb60_gpio_keys = {
 346         .name = "gpio-keys",
 347         .id =   -1,
 348         .dev = {
 349                 .platform_data = &qi_lb60_gpio_keys_data,
 350         }
 351 };
 352
 353 static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
 354         .gpio_card_detect       = QI_LB60_GPIO_SD_CD,
 355         .gpio_read_only         = -1,
 356         .gpio_power             = QI_LB60_GPIO_SD_VCC_EN_N,
 357         .power_active_low       = 1,
 358 };
 359
 360 /* OHCI */
 361 static struct regulator_consumer_supply avt2_usb_regulator_consumer =
 362         REGULATOR_SUPPLY("vbus", "jz4740-ohci");
 363
 364 static struct regulator_init_data avt2_usb_regulator_init_data = {
 365         .num_consumer_supplies = 1,
 366         .consumer_supplies = &avt2_usb_regulator_consumer,
 367         .constraints = {
 368                 .name = "USB power",
 369                 .min_uV = 5000000,
 370                 .max_uV = 5000000,
 371                 .valid_modes_mask = REGULATOR_MODE_NORMAL,
 372                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 373         },
 374 };
 375
 376 static struct fixed_voltage_config avt2_usb_regulator_data = {
 377         .supply_name = "USB power",
 378         .microvolts = 5000000,
 379         .gpio = JZ_GPIO_PORTB(17),
 380         .init_data = &avt2_usb_regulator_init_data,
 381 };
 382
 383 static struct platform_device avt2_usb_regulator_device = {
 384         .name = "reg-fixed-voltage",
 385         .id = -1,
 386         .dev = {
 387                 .platform_data = &avt2_usb_regulator_data,
 388         }
 389 };
 390
 391 /* beeper */
 392 static struct platform_device qi_lb60_pwm_beeper = {
 393         .name = "pwm-beeper",
 394         .id = -1,
 395         .dev = {
 396                 .platform_data = (void *)4,
 397         },
 398 };
 399
 400 /* charger */
 401 static char *qi_lb60_batteries[] = {
 402         "battery",
 403 };
 404
 405 static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
 406         .name = "usb",
 407         .type = POWER_SUPPLY_TYPE_USB,
 408         .gpio = JZ_GPIO_PORTD(28),
 409         .gpio_active_low = 1,
 410         .supplied_to = qi_lb60_batteries,
 411         .num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
 412 };
 413
 414 static struct platform_device qi_lb60_charger_device = {
 415         .name = "gpio-charger",
 416         .dev = {
 417                 .platform_data = &qi_lb60_charger_pdata,
 418         },
 419 };
 420
 421
 422 static struct platform_device *jz_platform_devices[] __initdata = {
 423         &jz4740_udc_device,
 424         &jz4740_mmc_device,
 425         &jz4740_nand_device,
 426         &qi_lb60_keypad,
 427         &spigpio_device,
 428         &jz4740_framebuffer_device,
 429         &jz4740_pcm_device,
 430         &jz4740_i2s_device,
 431         &jz4740_codec_device,
 432         &jz4740_rtc_device,
 433         &jz4740_adc_device,
 434         &qi_lb60_gpio_keys,
 435         &qi_lb60_pwm_beeper,
 436         &qi_lb60_charger_device,
 437 };
 438
 439 static void __init board_gpio_setup(void)
 440 {
 441         /* We only need to enable/disable pullup here for pins used in generic
 442          * drivers. Everything else is done by the drivers themselves. */
 443         jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
 444         jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
 445 }
 446
 447 static int __init qi_lb60_init_platform_devices(void)
 448 {
 449         jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
 450         jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
 451         jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
 452         jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
 453
 454         jz4740_serial_device_register();
 455
 456         spi_register_board_info(qi_lb60_spi_board_info,
 457                                 ARRAY_SIZE(qi_lb60_spi_board_info));
 458
 459         if (is_avt2) {
 460                 platform_device_register(&avt2_usb_regulator_device);
 461                 platform_device_register(&jz4740_usb_ohci_device);
 462         }
 463
 464         return platform_add_devices(jz_platform_devices,
 465                                         ARRAY_SIZE(jz_platform_devices));
 466
 467 }
 468
 469 struct jz4740_clock_board_data jz4740_clock_bdata = {
 470         .ext_rate = 12000000,
 471         .rtc_rate = 32768,
 472 };
 473
 474 static __init int board_avt2(char *str)
 475 {
 476         qi_lb60_mmc_pdata.card_detect_active_low = 1;
 477         is_avt2 = true;
 478
 479         return 1;
 480 }
 481 __setup("avt2", board_avt2);
 482
 483 static int __init qi_lb60_board_setup(void)
 484 {
 485         printk(KERN_INFO "Qi Hardware JZ4740 QI %s setup\n",
 486                 is_avt2 ? "AVT2" : "LB60");
 487
 488         board_gpio_setup();
 489
 490         if (qi_lb60_init_platform_devices())
 491                 panic("Failed to initialize platform devices");
 492
 493         return 0;
 494 }
 495 arch_initcall(qi_lb60_board_setup);