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