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 #include <linux/gpio/machine.h>
  19
  20 #include <linux/input.h>
  21 #include <linux/gpio_keys.h>
  22 #include <linux/input/matrix_keypad.h>
  23 #include <linux/spi/spi.h>
  24 #include <linux/spi/spi_gpio.h>
  25 #include <linux/power_supply.h>
  26 #include <linux/power/jz4740-battery.h>
  27 #include <linux/power/gpio-charger.h>
  28 #include <linux/pwm.h>
  29
  30 #include <asm/mach-jz4740/gpio.h>
  31 #include <asm/mach-jz4740/jz4740_fb.h>
  32 #include <asm/mach-jz4740/jz4740_mmc.h>
  33 #include <asm/mach-jz4740/jz4740_nand.h>
  34
  35 #include <linux/regulator/fixed.h>
  36 #include <linux/regulator/machine.h>
  37
  38 #include <asm/mach-jz4740/platform.h>
  39
  40 #include "clock.h"
  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
  52 /* Early prototypes of the QI LB60 had only 1GB of NAND.
  53  * In order to support these devices as well the partition and ecc layout is
  54  * initialized depending on the NAND size */
  55 static struct mtd_partition qi_lb60_partitions_1gb[] = {
  56         {
  57                 .name = "NAND BOOT partition",
  58                 .offset = 0 * 0x100000,
  59                 .size = 4 * 0x100000,
  60         },
  61         {
  62                 .name = "NAND KERNEL partition",
  63                 .offset = 4 * 0x100000,
  64                 .size = 4 * 0x100000,
  65         },
  66         {
  67                 .name = "NAND ROOTFS partition",
  68                 .offset = 8 * 0x100000,
  69                 .size = (504 + 512) * 0x100000,
  70         },
  71 };
  72
  73 static struct mtd_partition qi_lb60_partitions_2gb[] = {
  74         {
  75                 .name = "NAND BOOT partition",
  76                 .offset = 0 * 0x100000,
  77                 .size = 4 * 0x100000,
  78         },
  79         {
  80                 .name = "NAND KERNEL partition",
  81                 .offset = 4 * 0x100000,
  82                 .size = 4 * 0x100000,
  83         },
  84         {
  85                 .name = "NAND ROOTFS partition",
  86                 .offset = 8 * 0x100000,
  87                 .size = (504 + 512 + 1024) * 0x100000,
  88         },
  89 };
  90
  91 static int qi_lb60_ooblayout_ecc(struct mtd_info *mtd, int section,
  92                                  struct mtd_oob_region *oobregion)
  93 {
  94         if (section)
  95                 return -ERANGE;
  96
  97         oobregion->length = 36;
  98         oobregion->offset = 6;
  99
 100         if (mtd->oobsize == 128) {
 101                 oobregion->length *= 2;
 102                 oobregion->offset *= 2;
 103         }
 104
 105         return 0;
 106 }
 107
 108 static int qi_lb60_ooblayout_free(struct mtd_info *mtd, int section,
 109                                   struct mtd_oob_region *oobregion)
 110 {
 111         int eccbytes = 36, eccoff = 6;
 112
 113         if (section > 1)
 114                 return -ERANGE;
 115
 116         if (mtd->oobsize == 128) {
 117                 eccbytes *= 2;
 118                 eccoff *= 2;
 119         }
 120
 121         if (!section) {
 122                 oobregion->offset = 2;
 123                 oobregion->length = eccoff - 2;
 124         } else {
 125                 oobregion->offset = eccoff + eccbytes;
 126                 oobregion->length = mtd->oobsize - oobregion->offset;
 127         }
 128
 129         return 0;
 130 }
 131
 132 static const struct mtd_ooblayout_ops qi_lb60_ooblayout_ops = {
 133         .ecc = qi_lb60_ooblayout_ecc,
 134         .free = qi_lb60_ooblayout_free,
 135 };
 136
 137 static void qi_lb60_nand_ident(struct platform_device *pdev,
 138                 struct mtd_info *mtd, struct mtd_partition **partitions,
 139                 int *num_partitions)
 140 {
 141         struct nand_chip *chip = mtd_to_nand(mtd);
 142
 143         if (chip->page_shift == 12) {
 144                 *partitions = qi_lb60_partitions_2gb;
 145                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
 146         } else {
 147                 *partitions = qi_lb60_partitions_1gb;
 148                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
 149         }
 150
 151         mtd_set_ooblayout(mtd, &qi_lb60_ooblayout_ops);
 152 }
 153
 154 static struct jz_nand_platform_data qi_lb60_nand_pdata = {
 155         .ident_callback = qi_lb60_nand_ident,
 156         .banks = { 1 },
 157 };
 158
 159 static struct gpiod_lookup_table qi_lb60_nand_gpio_table = {
 160         .dev_id = "jz4740-nand.0",
 161         .table = {
 162                 GPIO_LOOKUP("Bank C", 30, "busy", 0),
 163                 { },
 164         },
 165 };
 166
 167
 168 /* Keyboard*/
 169
 170 #define KEY_QI_QI       KEY_F13
 171 #define KEY_QI_UPRED    KEY_RIGHTALT
 172 #define KEY_QI_VOLUP    KEY_VOLUMEUP
 173 #define KEY_QI_VOLDOWN  KEY_VOLUMEDOWN
 174 #define KEY_QI_FN       KEY_LEFTCTRL
 175
 176 static const uint32_t qi_lb60_keymap[] = {
 177         KEY(0, 0, KEY_F1),      /* S2 */
 178         KEY(0, 1, KEY_F2),      /* S3 */
 179         KEY(0, 2, KEY_F3),      /* S4 */
 180         KEY(0, 3, KEY_F4),      /* S5 */
 181         KEY(0, 4, KEY_F5),      /* S6 */
 182         KEY(0, 5, KEY_F6),      /* S7 */
 183         KEY(0, 6, KEY_F7),      /* S8 */
 184
 185         KEY(1, 0, KEY_Q),       /* S10 */
 186         KEY(1, 1, KEY_W),       /* S11 */
 187         KEY(1, 2, KEY_E),       /* S12 */
 188         KEY(1, 3, KEY_R),       /* S13 */
 189         KEY(1, 4, KEY_T),       /* S14 */
 190         KEY(1, 5, KEY_Y),       /* S15 */
 191         KEY(1, 6, KEY_U),       /* S16 */
 192         KEY(1, 7, KEY_I),       /* S17 */
 193         KEY(2, 0, KEY_A),       /* S18 */
 194         KEY(2, 1, KEY_S),       /* S19 */
 195         KEY(2, 2, KEY_D),       /* S20 */
 196         KEY(2, 3, KEY_F),       /* S21 */
 197         KEY(2, 4, KEY_G),       /* S22 */
 198         KEY(2, 5, KEY_H),       /* S23 */
 199         KEY(2, 6, KEY_J),       /* S24 */
 200         KEY(2, 7, KEY_K),       /* S25 */
 201         KEY(3, 0, KEY_ESC),     /* S26 */
 202         KEY(3, 1, KEY_Z),       /* S27 */
 203         KEY(3, 2, KEY_X),       /* S28 */
 204         KEY(3, 3, KEY_C),       /* S29 */
 205         KEY(3, 4, KEY_V),       /* S30 */
 206         KEY(3, 5, KEY_B),       /* S31 */
 207         KEY(3, 6, KEY_N),       /* S32 */
 208         KEY(3, 7, KEY_M),       /* S33 */
 209         KEY(4, 0, KEY_TAB),     /* S34 */
 210         KEY(4, 1, KEY_CAPSLOCK),        /* S35 */
 211         KEY(4, 2, KEY_BACKSLASH),       /* S36 */
 212         KEY(4, 3, KEY_APOSTROPHE),      /* S37 */
 213         KEY(4, 4, KEY_COMMA),   /* S38 */
 214         KEY(4, 5, KEY_DOT),     /* S39 */
 215         KEY(4, 6, KEY_SLASH),   /* S40 */
 216         KEY(4, 7, KEY_UP),      /* S41 */
 217         KEY(5, 0, KEY_O),       /* S42 */
 218         KEY(5, 1, KEY_L),       /* S43 */
 219         KEY(5, 2, KEY_EQUAL),   /* S44 */
 220         KEY(5, 3, KEY_QI_UPRED),        /* S45 */
 221         KEY(5, 4, KEY_SPACE),   /* S46 */
 222         KEY(5, 5, KEY_QI_QI),   /* S47 */
 223         KEY(5, 6, KEY_RIGHTCTRL),       /* S48 */
 224         KEY(5, 7, KEY_LEFT),    /* S49 */
 225         KEY(6, 0, KEY_F8),      /* S50 */
 226         KEY(6, 1, KEY_P),       /* S51 */
 227         KEY(6, 2, KEY_BACKSPACE),/* S52 */
 228         KEY(6, 3, KEY_ENTER),   /* S53 */
 229         KEY(6, 4, KEY_QI_VOLUP),        /* S54 */
 230         KEY(6, 5, KEY_QI_VOLDOWN),      /* S55 */
 231         KEY(6, 6, KEY_DOWN),    /* S56 */
 232         KEY(6, 7, KEY_RIGHT),   /* S57 */
 233
 234         KEY(7, 0, KEY_LEFTSHIFT),       /* S58 */
 235         KEY(7, 1, KEY_LEFTALT), /* S59 */
 236         KEY(7, 2, KEY_QI_FN),   /* S60 */
 237 };
 238
 239 static const struct matrix_keymap_data qi_lb60_keymap_data = {
 240         .keymap         = qi_lb60_keymap,
 241         .keymap_size    = ARRAY_SIZE(qi_lb60_keymap),
 242 };
 243
 244 static const unsigned int qi_lb60_keypad_cols[] = {
 245         QI_LB60_GPIO_KEYOUT(0),
 246         QI_LB60_GPIO_KEYOUT(1),
 247         QI_LB60_GPIO_KEYOUT(2),
 248         QI_LB60_GPIO_KEYOUT(3),
 249         QI_LB60_GPIO_KEYOUT(4),
 250         QI_LB60_GPIO_KEYOUT(5),
 251         QI_LB60_GPIO_KEYOUT(6),
 252         QI_LB60_GPIO_KEYOUT(7),
 253 };
 254
 255 static const unsigned int qi_lb60_keypad_rows[] = {
 256         QI_LB60_GPIO_KEYIN(0),
 257         QI_LB60_GPIO_KEYIN(1),
 258         QI_LB60_GPIO_KEYIN(2),
 259         QI_LB60_GPIO_KEYIN(3),
 260         QI_LB60_GPIO_KEYIN(4),
 261         QI_LB60_GPIO_KEYIN(5),
 262         QI_LB60_GPIO_KEYIN(6),
 263         QI_LB60_GPIO_KEYIN8,
 264 };
 265
 266 static struct matrix_keypad_platform_data qi_lb60_pdata = {
 267         .keymap_data = &qi_lb60_keymap_data,
 268         .col_gpios      = qi_lb60_keypad_cols,
 269         .row_gpios      = qi_lb60_keypad_rows,
 270         .num_col_gpios  = ARRAY_SIZE(qi_lb60_keypad_cols),
 271         .num_row_gpios  = ARRAY_SIZE(qi_lb60_keypad_rows),
 272         .col_scan_delay_us      = 10,
 273         .debounce_ms            = 10,
 274         .wakeup                 = 1,
 275         .active_low             = 1,
 276 };
 277
 278 static struct platform_device qi_lb60_keypad = {
 279         .name           = "matrix-keypad",
 280         .id             = -1,
 281         .dev            = {
 282                 .platform_data = &qi_lb60_pdata,
 283         },
 284 };
 285
 286 /* Display */
 287 static struct fb_videomode qi_lb60_video_modes[] = {
 288         {
 289                 .name = "320x240",
 290                 .xres = 320,
 291                 .yres = 240,
 292                 .refresh = 30,
 293                 .left_margin = 140,
 294                 .right_margin = 273,
 295                 .upper_margin = 20,
 296                 .lower_margin = 2,
 297                 .hsync_len = 1,
 298                 .vsync_len = 1,
 299                 .sync = 0,
 300                 .vmode = FB_VMODE_NONINTERLACED,
 301         },
 302 };
 303
 304 static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
 305         .width          = 60,
 306         .height         = 45,
 307         .num_modes      = ARRAY_SIZE(qi_lb60_video_modes),
 308         .modes          = qi_lb60_video_modes,
 309         .bpp            = 24,
 310         .lcd_type       = JZ_LCD_TYPE_8BIT_SERIAL,
 311         .pixclk_falling_edge = 1,
 312 };
 313
 314 struct spi_gpio_platform_data spigpio_platform_data = {
 315         .sck = JZ_GPIO_PORTC(23),
 316         .mosi = JZ_GPIO_PORTC(22),
 317         .miso = -1,
 318         .num_chipselect = 1,
 319 };
 320
 321 static struct platform_device spigpio_device = {
 322         .name = "spi_gpio",
 323         .id   = 1,
 324         .dev = {
 325                 .platform_data = &spigpio_platform_data,
 326         },
 327 };
 328
 329 static struct spi_board_info qi_lb60_spi_board_info[] = {
 330         {
 331                 .modalias = "ili8960",
 332                 .controller_data = (void *)JZ_GPIO_PORTC(21),
 333                 .chip_select = 0,
 334                 .bus_num = 1,
 335                 .max_speed_hz = 30 * 1000,
 336                 .mode = SPI_3WIRE,
 337         },
 338 };
 339
 340 /* Battery */
 341 static struct jz_battery_platform_data qi_lb60_battery_pdata = {
 342         .gpio_charge =  JZ_GPIO_PORTC(27),
 343         .gpio_charge_active_low = 1,
 344         .info = {
 345                 .name = "battery",
 346                 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
 347                 .voltage_max_design = 4200000,
 348                 .voltage_min_design = 3600000,
 349         },
 350 };
 351
 352 /* GPIO Key: power */
 353 static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
 354         [0] = {
 355                 .code           = KEY_POWER,
 356                 .gpio           = JZ_GPIO_PORTD(29),
 357                 .active_low     = 1,
 358                 .desc           = "Power",
 359                 .wakeup         = 1,
 360         },
 361 };
 362
 363 static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
 364         .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
 365         .buttons = qi_lb60_gpio_keys_buttons,
 366 };
 367
 368 static struct platform_device qi_lb60_gpio_keys = {
 369         .name = "gpio-keys",
 370         .id =   -1,
 371         .dev = {
 372                 .platform_data = &qi_lb60_gpio_keys_data,
 373         }
 374 };
 375
 376 static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
 377         .gpio_card_detect       = QI_LB60_GPIO_SD_CD,
 378         .gpio_read_only         = -1,
 379         .gpio_power             = QI_LB60_GPIO_SD_VCC_EN_N,
 380         .power_active_low       = 1,
 381 };
 382
 383 /* beeper */
 384 static struct pwm_lookup qi_lb60_pwm_lookup[] = {
 385         PWM_LOOKUP("jz4740-pwm", 4, "pwm-beeper", NULL, 0,
 386                    PWM_POLARITY_NORMAL),
 387 };
 388
 389 static struct platform_device qi_lb60_pwm_beeper = {
 390         .name = "pwm-beeper",
 391         .id = -1,
 392 };
 393
 394 /* charger */
 395 static char *qi_lb60_batteries[] = {
 396         "battery",
 397 };
 398
 399 static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
 400         .name = "usb",
 401         .type = POWER_SUPPLY_TYPE_USB,
 402         .gpio = JZ_GPIO_PORTD(28),
 403         .gpio_active_low = 1,
 404         .supplied_to = qi_lb60_batteries,
 405         .num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
 406 };
 407
 408 static struct platform_device qi_lb60_charger_device = {
 409         .name = "gpio-charger",
 410         .dev = {
 411                 .platform_data = &qi_lb60_charger_pdata,
 412         },
 413 };
 414
 415 /* audio */
 416 static struct platform_device qi_lb60_audio_device = {
 417         .name = "qi-lb60-audio",
 418         .id = -1,
 419 };
 420
 421 static struct gpiod_lookup_table qi_lb60_audio_gpio_table = {
 422         .dev_id = "qi-lb60-audio",
 423         .table = {
 424                 GPIO_LOOKUP("Bank B", 29, "snd", 0),
 425                 GPIO_LOOKUP("Bank D", 4, "amp", 0),
 426                 { },
 427         },
 428 };
 429
 430 static struct platform_device *jz_platform_devices[] __initdata = {
 431         &jz4740_udc_device,
 432         &jz4740_udc_xceiv_device,
 433         &jz4740_mmc_device,
 434         &jz4740_nand_device,
 435         &qi_lb60_keypad,
 436         &spigpio_device,
 437         &jz4740_framebuffer_device,
 438         &jz4740_pcm_device,
 439         &jz4740_i2s_device,
 440         &jz4740_codec_device,
 441         &jz4740_rtc_device,
 442         &jz4740_adc_device,
 443         &jz4740_pwm_device,
 444         &jz4740_dma_device,
 445         &qi_lb60_gpio_keys,
 446         &qi_lb60_pwm_beeper,
 447         &qi_lb60_charger_device,
 448         &qi_lb60_audio_device,
 449 };
 450
 451 static void __init board_gpio_setup(void)
 452 {
 453         /* We only need to enable/disable pullup here for pins used in generic
 454          * drivers. Everything else is done by the drivers themselves. */
 455         jz_gpio_disable_pullup(QI_LB60_GPIO_SD_VCC_EN_N);
 456         jz_gpio_disable_pullup(QI_LB60_GPIO_SD_CD);
 457 }
 458
 459 static int __init qi_lb60_init_platform_devices(void)
 460 {
 461         jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
 462         jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
 463         jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
 464         jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
 465
 466         gpiod_add_lookup_table(&qi_lb60_audio_gpio_table);
 467         gpiod_add_lookup_table(&qi_lb60_nand_gpio_table);
 468
 469         spi_register_board_info(qi_lb60_spi_board_info,
 470                                 ARRAY_SIZE(qi_lb60_spi_board_info));
 471
 472         pwm_add_table(qi_lb60_pwm_lookup, ARRAY_SIZE(qi_lb60_pwm_lookup));
 473
 474         return platform_add_devices(jz_platform_devices,
 475                                         ARRAY_SIZE(jz_platform_devices));
 476
 477 }
 478
 479 static int __init qi_lb60_board_setup(void)
 480 {
 481         printk(KERN_INFO "Qi Hardware JZ4740 QI LB60 setup\n");
 482
 483         board_gpio_setup();
 484
 485         if (qi_lb60_init_platform_devices())
 486                 panic("Failed to initialize platform devices");
 487
 488         return 0;
 489 }
 490 arch_initcall(qi_lb60_board_setup);