linux/arch/mips/jz4740/board-qi_lb60.c
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   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
  41static 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 */
  52static 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 */
  70static 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
  88static 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
 107static 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
 125static 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
 140static 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
 153static 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
 216static const struct matrix_keymap_data qi_lb60_keymap_data = {
 217        .keymap         = qi_lb60_keymap,
 218        .keymap_size    = ARRAY_SIZE(qi_lb60_keymap),
 219};
 220
 221static 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
 232static 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
 243static 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
 255static 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 */
 264static 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
 281static 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
 291struct 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
 298static struct platform_device spigpio_device = {
 299        .name = "spi_gpio",
 300        .id   = 1,
 301        .dev = {
 302                .platform_data = &spigpio_platform_data,
 303        },
 304};
 305
 306static 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 */
 318static 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 */
 330static 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
 340static 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
 345static 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
 353static 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 */
 361static struct regulator_consumer_supply avt2_usb_regulator_consumer =
 362        REGULATOR_SUPPLY("vbus", "jz4740-ohci");
 363
 364static 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
 376static 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
 383static 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 */
 392static 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 */
 401static char *qi_lb60_batteries[] = {
 402        "battery",
 403};
 404
 405static 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
 414static struct platform_device qi_lb60_charger_device = {
 415        .name = "gpio-charger",
 416        .dev = {
 417                .platform_data = &qi_lb60_charger_pdata,
 418        },
 419};
 420
 421
 422static 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
 439static 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
 447static 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
 469struct jz4740_clock_board_data jz4740_clock_bdata = {
 470        .ext_rate = 12000000,
 471        .rtc_rate = 32768,
 472};
 473
 474static __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
 483static 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\n");
 492
 493        return 0;
 494}
 495arch_initcall(qi_lb60_board_setup);
 496