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        .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
 154static 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
 217static const struct matrix_keymap_data qi_lb60_keymap_data = {
 218        .keymap         = qi_lb60_keymap,
 219        .keymap_size    = ARRAY_SIZE(qi_lb60_keymap),
 220};
 221
 222static 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
 233static 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
 244static 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
 256static 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 */
 265static 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
 282static 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
 292struct 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
 299static struct platform_device spigpio_device = {
 300        .name = "spi_gpio",
 301        .id   = 1,
 302        .dev = {
 303                .platform_data = &spigpio_platform_data,
 304        },
 305};
 306
 307static 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 */
 319static 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 */
 331static 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
 341static 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
 346static 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
 354static 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 */
 362static struct regulator_consumer_supply avt2_usb_regulator_consumer =
 363        REGULATOR_SUPPLY("vbus", "jz4740-ohci");
 364
 365static 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
 377static 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
 384static 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 */
 393static 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 */
 402static char *qi_lb60_batteries[] = {
 403        "battery",
 404};
 405
 406static 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
 415static 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 */
 423static struct platform_device qi_lb60_audio_device = {
 424        .name = "qi-lb60-audio",
 425        .id = -1,
 426};
 427
 428static 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
 449static 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
 457static 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
 479struct jz4740_clock_board_data jz4740_clock_bdata = {
 480        .ext_rate = 12000000,
 481        .rtc_rate = 32768,
 482};
 483
 484static __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
 493static 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}
 505arch_initcall(qi_lb60_board_setup);
 506