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         .banks = { 1 },
 144 };
 145
 146 /* Keyboard*/
 147
 148 #define KEY_QI_QI       KEY_F13
 149 #define KEY_QI_UPRED    KEY_RIGHTALT
 150 #define KEY_QI_VOLUP    KEY_VOLUMEUP
 151 #define KEY_QI_VOLDOWN  KEY_VOLUMEDOWN
 152 #define KEY_QI_FN       KEY_LEFTCTRL
 153
 154 static const uint32_t qi_lb60_keymap[] = {
 155         KEY(0, 0, KEY_F1),      /* S2 */
 156         KEY(0, 1, KEY_F2),      /* S3 */
 157         KEY(0, 2, KEY_F3),      /* S4 */
 158         KEY(0, 3, KEY_F4),      /* S5 */
 159         KEY(0, 4, KEY_F5),      /* S6 */
 160         KEY(0, 5, KEY_F6),      /* S7 */
 161         KEY(0, 6, KEY_F7),      /* S8 */
 162
 163         KEY(1, 0, KEY_Q),       /* S10 */
 164         KEY(1, 1, KEY_W),       /* S11 */
 165         KEY(1, 2, KEY_E),       /* S12 */
 166         KEY(1, 3, KEY_R),       /* S13 */
 167         KEY(1, 4, KEY_T),       /* S14 */
 168         KEY(1, 5, KEY_Y),       /* S15 */
 169         KEY(1, 6, KEY_U),       /* S16 */
 170         KEY(1, 7, KEY_I),       /* S17 */
 171         KEY(2, 0, KEY_A),       /* S18 */
 172         KEY(2, 1, KEY_S),       /* S19 */
 173         KEY(2, 2, KEY_D),       /* S20 */
 174         KEY(2, 3, KEY_F),       /* S21 */
 175         KEY(2, 4, KEY_G),       /* S22 */
 176         KEY(2, 5, KEY_H),       /* S23 */
 177         KEY(2, 6, KEY_J),       /* S24 */
 178         KEY(2, 7, KEY_K),       /* S25 */
 179         KEY(3, 0, KEY_ESC),     /* S26 */
 180         KEY(3, 1, KEY_Z),       /* S27 */
 181         KEY(3, 2, KEY_X),       /* S28 */
 182         KEY(3, 3, KEY_C),       /* S29 */
 183         KEY(3, 4, KEY_V),       /* S30 */
 184         KEY(3, 5, KEY_B),       /* S31 */
 185         KEY(3, 6, KEY_N),       /* S32 */
 186         KEY(3, 7, KEY_M),       /* S33 */
 187         KEY(4, 0, KEY_TAB),     /* S34 */
 188         KEY(4, 1, KEY_CAPSLOCK),        /* S35 */
 189         KEY(4, 2, KEY_BACKSLASH),       /* S36 */
 190         KEY(4, 3, KEY_APOSTROPHE),      /* S37 */
 191         KEY(4, 4, KEY_COMMA),   /* S38 */
 192         KEY(4, 5, KEY_DOT),     /* S39 */
 193         KEY(4, 6, KEY_SLASH),   /* S40 */
 194         KEY(4, 7, KEY_UP),      /* S41 */
 195         KEY(5, 0, KEY_O),       /* S42 */
 196         KEY(5, 1, KEY_L),       /* S43 */
 197         KEY(5, 2, KEY_EQUAL),   /* S44 */
 198         KEY(5, 3, KEY_QI_UPRED),        /* S45 */
 199         KEY(5, 4, KEY_SPACE),   /* S46 */
 200         KEY(5, 5, KEY_QI_QI),   /* S47 */
 201         KEY(5, 6, KEY_RIGHTCTRL),       /* S48 */
 202         KEY(5, 7, KEY_LEFT),    /* S49 */
 203         KEY(6, 0, KEY_F8),      /* S50 */
 204         KEY(6, 1, KEY_P),       /* S51 */
 205         KEY(6, 2, KEY_BACKSPACE),/* S52 */
 206         KEY(6, 3, KEY_ENTER),   /* S53 */
 207         KEY(6, 4, KEY_QI_VOLUP),        /* S54 */
 208         KEY(6, 5, KEY_QI_VOLDOWN),      /* S55 */
 209         KEY(6, 6, KEY_DOWN),    /* S56 */
 210         KEY(6, 7, KEY_RIGHT),   /* S57 */
 211
 212         KEY(7, 0, KEY_LEFTSHIFT),       /* S58 */
 213         KEY(7, 1, KEY_LEFTALT), /* S59 */
 214         KEY(7, 2, KEY_QI_FN),   /* S60 */
 215 };
 216
 217 static const struct matrix_keymap_data qi_lb60_keymap_data = {
 218         .keymap         = qi_lb60_keymap,
 219         .keymap_size    = ARRAY_SIZE(qi_lb60_keymap),
 220 };
 221
 222 static const unsigned int qi_lb60_keypad_cols[] = {
 223         QI_LB60_GPIO_KEYOUT(0),
 224         QI_LB60_GPIO_KEYOUT(1),
 225         QI_LB60_GPIO_KEYOUT(2),
 226         QI_LB60_GPIO_KEYOUT(3),
 227         QI_LB60_GPIO_KEYOUT(4),
 228         QI_LB60_GPIO_KEYOUT(5),
 229         QI_LB60_GPIO_KEYOUT(6),
 230         QI_LB60_GPIO_KEYOUT(7),
 231 };
 232
 233 static const unsigned int qi_lb60_keypad_rows[] = {
 234         QI_LB60_GPIO_KEYIN(0),
 235         QI_LB60_GPIO_KEYIN(1),
 236         QI_LB60_GPIO_KEYIN(2),
 237         QI_LB60_GPIO_KEYIN(3),
 238         QI_LB60_GPIO_KEYIN(4),
 239         QI_LB60_GPIO_KEYIN(5),
 240         QI_LB60_GPIO_KEYIN(6),
 241         QI_LB60_GPIO_KEYIN8,
 242 };
 243
 244 static struct matrix_keypad_platform_data qi_lb60_pdata = {
 245         .keymap_data = &qi_lb60_keymap_data,
 246         .col_gpios      = qi_lb60_keypad_cols,
 247         .row_gpios      = qi_lb60_keypad_rows,
 248         .num_col_gpios  = ARRAY_SIZE(qi_lb60_keypad_cols),
 249         .num_row_gpios  = ARRAY_SIZE(qi_lb60_keypad_rows),
 250         .col_scan_delay_us      = 10,
 251         .debounce_ms            = 10,
 252         .wakeup                 = 1,
 253         .active_low             = 1,
 254 };
 255
 256 static struct platform_device qi_lb60_keypad = {
 257         .name           = "matrix-keypad",
 258         .id             = -1,
 259         .dev            = {
 260                 .platform_data = &qi_lb60_pdata,
 261         },
 262 };
 263
 264 /* Display */
 265 static struct fb_videomode qi_lb60_video_modes[] = {
 266         {
 267                 .name = "320x240",
 268                 .xres = 320,
 269                 .yres = 240,
 270                 .refresh = 30,
 271                 .left_margin = 140,
 272                 .right_margin = 273,
 273                 .upper_margin = 20,
 274                 .lower_margin = 2,
 275                 .hsync_len = 1,
 276                 .vsync_len = 1,
 277                 .sync = 0,
 278                 .vmode = FB_VMODE_NONINTERLACED,
 279         },
 280 };
 281
 282 static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
 283         .width          = 60,
 284         .height         = 45,
 285         .num_modes      = ARRAY_SIZE(qi_lb60_video_modes),
 286         .modes          = qi_lb60_video_modes,
 287         .bpp            = 24,
 288         .lcd_type       = JZ_LCD_TYPE_8BIT_SERIAL,
 289         .pixclk_falling_edge = 1,
 290 };
 291
 292 struct spi_gpio_platform_data spigpio_platform_data = {
 293         .sck = JZ_GPIO_PORTC(23),
 294         .mosi = JZ_GPIO_PORTC(22),
 295         .miso = -1,
 296         .num_chipselect = 1,
 297 };
 298
 299 static struct platform_device spigpio_device = {
 300         .name = "spi_gpio",
 301         .id   = 1,
 302         .dev = {
 303                 .platform_data = &spigpio_platform_data,
 304         },
 305 };
 306
 307 static struct spi_board_info qi_lb60_spi_board_info[] = {
 308         {
 309                 .modalias = "ili8960",
 310                 .controller_data = (void *)JZ_GPIO_PORTC(21),
 311                 .chip_select = 0,
 312                 .bus_num = 1,
 313                 .max_speed_hz = 30 * 1000,
 314                 .mode = SPI_3WIRE,
 315         },
 316 };
 317
 318 /* Battery */
 319 static struct jz_battery_platform_data qi_lb60_battery_pdata = {
 320         .gpio_charge =  JZ_GPIO_PORTC(27),
 321         .gpio_charge_active_low = 1,
 322         .info = {
 323                 .name = "battery",
 324                 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
 325                 .voltage_max_design = 4200000,
 326                 .voltage_min_design = 3600000,
 327         },
 328 };
 329
 330 /* GPIO Key: power */
 331 static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
 332         [0] = {
 333                 .code           = KEY_POWER,
 334                 .gpio           = JZ_GPIO_PORTD(29),
 335                 .active_low     = 1,
 336                 .desc           = "Power",
 337                 .wakeup         = 1,
 338         },
 339 };
 340
 341 static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
 342         .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
 343         .buttons = qi_lb60_gpio_keys_buttons,
 344 };
 345
 346 static struct platform_device qi_lb60_gpio_keys = {
 347         .name = "gpio-keys",
 348         .id =   -1,
 349         .dev = {
 350                 .platform_data = &qi_lb60_gpio_keys_data,
 351         }
 352 };
 353
 354 static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
 355         .gpio_card_detect       = QI_LB60_GPIO_SD_CD,
 356         .gpio_read_only         = -1,
 357         .gpio_power             = QI_LB60_GPIO_SD_VCC_EN_N,
 358         .power_active_low       = 1,
 359 };
 360
 361 /* OHCI */
 362 static struct regulator_consumer_supply avt2_usb_regulator_consumer =
 363         REGULATOR_SUPPLY("vbus", "jz4740-ohci");
 364
 365 static struct regulator_init_data avt2_usb_regulator_init_data = {
 366         .num_consumer_supplies = 1,
 367         .consumer_supplies = &avt2_usb_regulator_consumer,
 368         .constraints = {
 369                 .name = "USB power",
 370                 .min_uV = 5000000,
 371                 .max_uV = 5000000,
 372                 .valid_modes_mask = REGULATOR_MODE_NORMAL,
 373                 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
 374         },
 375 };
 376
 377 static struct fixed_voltage_config avt2_usb_regulator_data = {
 378         .supply_name = "USB power",
 379         .microvolts = 5000000,
 380         .gpio = JZ_GPIO_PORTB(17),
 381         .init_data = &avt2_usb_regulator_init_data,
 382 };
 383
 384 static struct platform_device avt2_usb_regulator_device = {
 385         .name = "reg-fixed-voltage",
 386         .id = -1,
 387         .dev = {
 388                 .platform_data = &avt2_usb_regulator_data,
 389         }
 390 };
 391
 392 /* beeper */
 393 static struct platform_device qi_lb60_pwm_beeper = {
 394         .name = "pwm-beeper",
 395         .id = -1,
 396         .dev = {
 397                 .platform_data = (void *)4,
 398         },
 399 };
 400
 401 /* charger */
 402 static char *qi_lb60_batteries[] = {
 403         "battery",
 404 };
 405
 406 static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
 407         .name = "usb",
 408         .type = POWER_SUPPLY_TYPE_USB,
 409         .gpio = JZ_GPIO_PORTD(28),
 410         .gpio_active_low = 1,
 411         .supplied_to = qi_lb60_batteries,
 412         .num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
 413 };
 414
 415 static struct platform_device qi_lb60_charger_device = {
 416         .name = "gpio-charger",
 417         .dev = {
 418                 .platform_data = &qi_lb60_charger_pdata,
 419         },
 420 };
 421
 422 /* audio */
 423 static struct platform_device qi_lb60_audio_device = {
 424         .name = "qi-lb60-audio",
 425         .id = -1,
 426 };
 427
 428 static struct platform_device *jz_platform_devices[] __initdata = {
 429         &jz4740_udc_device,
 430         &jz4740_udc_xceiv_device,
 431         &jz4740_mmc_device,
 432         &jz4740_nand_device,
 433         &qi_lb60_keypad,
 434         &spigpio_device,
 435         &jz4740_framebuffer_device,
 436         &jz4740_pcm_device,
 437         &jz4740_i2s_device,
 438         &jz4740_codec_device,
 439         &jz4740_rtc_device,
 440         &jz4740_adc_device,
 441         &jz4740_pwm_device,
 442         &jz4740_dma_device,
 443         &qi_lb60_gpio_keys,
 444         &qi_lb60_pwm_beeper,
 445         &qi_lb60_charger_device,
 446         &qi_lb60_audio_device,
 447 };
 448
 449 static void __init board_gpio_setup(void)
 450 {
 451         /* We only need to enable/disable pullup here for pins used in generic
 452          * drivers. Everything else is done by the drivers themselves. */
 453         jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
 454         jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
 455 }
 456
 457 static int __init qi_lb60_init_platform_devices(void)
 458 {
 459         jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
 460         jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
 461         jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
 462         jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
 463
 464         jz4740_serial_device_register();
 465
 466         spi_register_board_info(qi_lb60_spi_board_info,
 467                                 ARRAY_SIZE(qi_lb60_spi_board_info));
 468
 469         if (is_avt2) {
 470                 platform_device_register(&avt2_usb_regulator_device);
 471                 platform_device_register(&jz4740_usb_ohci_device);
 472         }
 473
 474         return platform_add_devices(jz_platform_devices,
 475                                         ARRAY_SIZE(jz_platform_devices));
 476
 477 }
 478
 479 struct jz4740_clock_board_data jz4740_clock_bdata = {
 480         .ext_rate = 12000000,
 481         .rtc_rate = 32768,
 482 };
 483
 484 static __init int board_avt2(char *str)
 485 {
 486         qi_lb60_mmc_pdata.card_detect_active_low = 1;
 487         is_avt2 = true;
 488
 489         return 1;
 490 }
 491 __setup("avt2", board_avt2);
 492
 493 static int __init qi_lb60_board_setup(void)
 494 {
 495         printk(KERN_INFO "Qi Hardware JZ4740 QI %s setup\n",
 496                 is_avt2 ? "AVT2" : "LB60");
 497
 498         board_gpio_setup();
 499
 500         if (qi_lb60_init_platform_devices())
 501                 panic("Failed to initialize platform devices");
 502
 503         return 0;
 504 }
 505 arch_initcall(qi_lb60_board_setup);