arch/mips/jz4740/board-qi_lb60.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * linux/arch/mips/jz4740/board-qi_lb60.c
   4  *
   5  * QI_LB60 board support
   6  *
   7  * Copyright (c) 2009 Qi Hardware inc.,
   8  * Author: Xiangfu Liu <xiangfu@qi-hardware.com>
   9  * Copyright 2010, Lars-Peter Clausen <lars@metafoo.de>
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/init.h>
  14 #include <linux/gpio.h>
  15 #include <linux/gpio/machine.h>
  16
  17 #include <linux/input.h>
  18 #include <linux/gpio_keys.h>
  19 #include <linux/input/matrix_keypad.h>
  20 #include <linux/spi/spi.h>
  21 #include <linux/spi/spi_gpio.h>
  22 #include <linux/pinctrl/machine.h>
  23 #include <linux/pinctrl/pinconf-generic.h>
  24 #include <linux/power_supply.h>
  25 #include <linux/power/jz4740-battery.h>
  26 #include <linux/power/gpio-charger.h>
  27 #include <linux/pwm.h>
  28
  29 #include <linux/platform_data/jz4740/jz4740_nand.h>
  30
  31 #include <asm/mach-jz4740/gpio.h>
  32 #include <asm/mach-jz4740/jz4740_fb.h>
  33 #include <asm/mach-jz4740/jz4740_mmc.h>
  34
  35 #include <linux/regulator/fixed.h>
  36 #include <linux/regulator/machine.h>
  37
  38 #include <asm/mach-jz4740/platform.h>
  39
  40 /* GPIOs */
  41 #define QI_LB60_GPIO_KEYOUT(x)          (JZ_GPIO_PORTC(10) + (x))
  42 #define QI_LB60_GPIO_KEYIN(x)           (JZ_GPIO_PORTD(18) + (x))
  43 #define QI_LB60_GPIO_KEYIN8             JZ_GPIO_PORTD(26)
  44
  45 /* NAND */
  46
  47 /* Early prototypes of the QI LB60 had only 1GB of NAND.
  48  * In order to support these devices as well the partition and ecc layout is
  49  * initialized depending on the NAND size */
  50 static struct mtd_partition qi_lb60_partitions_1gb[] = {
  51         {
  52                 .name = "NAND BOOT partition",
  53                 .offset = 0 * 0x100000,
  54                 .size = 4 * 0x100000,
  55         },
  56         {
  57                 .name = "NAND KERNEL partition",
  58                 .offset = 4 * 0x100000,
  59                 .size = 4 * 0x100000,
  60         },
  61         {
  62                 .name = "NAND ROOTFS partition",
  63                 .offset = 8 * 0x100000,
  64                 .size = (504 + 512) * 0x100000,
  65         },
  66 };
  67
  68 static struct mtd_partition qi_lb60_partitions_2gb[] = {
  69         {
  70                 .name = "NAND BOOT partition",
  71                 .offset = 0 * 0x100000,
  72                 .size = 4 * 0x100000,
  73         },
  74         {
  75                 .name = "NAND KERNEL partition",
  76                 .offset = 4 * 0x100000,
  77                 .size = 4 * 0x100000,
  78         },
  79         {
  80                 .name = "NAND ROOTFS partition",
  81                 .offset = 8 * 0x100000,
  82                 .size = (504 + 512 + 1024) * 0x100000,
  83         },
  84 };
  85
  86 static int qi_lb60_ooblayout_ecc(struct mtd_info *mtd, int section,
  87                                  struct mtd_oob_region *oobregion)
  88 {
  89         if (section)
  90                 return -ERANGE;
  91
  92         oobregion->length = 36;
  93         oobregion->offset = 6;
  94
  95         if (mtd->oobsize == 128) {
  96                 oobregion->length *= 2;
  97                 oobregion->offset *= 2;
  98         }
  99
 100         return 0;
 101 }
 102
 103 static int qi_lb60_ooblayout_free(struct mtd_info *mtd, int section,
 104                                   struct mtd_oob_region *oobregion)
 105 {
 106         int eccbytes = 36, eccoff = 6;
 107
 108         if (section > 1)
 109                 return -ERANGE;
 110
 111         if (mtd->oobsize == 128) {
 112                 eccbytes *= 2;
 113                 eccoff *= 2;
 114         }
 115
 116         if (!section) {
 117                 oobregion->offset = 2;
 118                 oobregion->length = eccoff - 2;
 119         } else {
 120                 oobregion->offset = eccoff + eccbytes;
 121                 oobregion->length = mtd->oobsize - oobregion->offset;
 122         }
 123
 124         return 0;
 125 }
 126
 127 static const struct mtd_ooblayout_ops qi_lb60_ooblayout_ops = {
 128         .ecc = qi_lb60_ooblayout_ecc,
 129         .free = qi_lb60_ooblayout_free,
 130 };
 131
 132 static void qi_lb60_nand_ident(struct platform_device *pdev,
 133                 struct mtd_info *mtd, struct mtd_partition **partitions,
 134                 int *num_partitions)
 135 {
 136         struct nand_chip *chip = mtd_to_nand(mtd);
 137
 138         if (chip->page_shift == 12) {
 139                 *partitions = qi_lb60_partitions_2gb;
 140                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
 141         } else {
 142                 *partitions = qi_lb60_partitions_1gb;
 143                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
 144         }
 145
 146         mtd_set_ooblayout(mtd, &qi_lb60_ooblayout_ops);
 147 }
 148
 149 static struct jz_nand_platform_data qi_lb60_nand_pdata = {
 150         .ident_callback = qi_lb60_nand_ident,
 151         .banks = { 1 },
 152 };
 153
 154 static struct gpiod_lookup_table qi_lb60_nand_gpio_table = {
 155         .dev_id = "jz4740-nand.0",
 156         .table = {
 157                 GPIO_LOOKUP("GPIOC", 30, "busy", 0),
 158                 { },
 159         },
 160 };
 161
 162
 163 /* Keyboard*/
 164
 165 #define KEY_QI_QI       KEY_F13
 166 #define KEY_QI_UPRED    KEY_RIGHTALT
 167 #define KEY_QI_VOLUP    KEY_VOLUMEUP
 168 #define KEY_QI_VOLDOWN  KEY_VOLUMEDOWN
 169 #define KEY_QI_FN       KEY_LEFTCTRL
 170
 171 static const uint32_t qi_lb60_keymap[] = {
 172         KEY(0, 0, KEY_F1),      /* S2 */
 173         KEY(0, 1, KEY_F2),      /* S3 */
 174         KEY(0, 2, KEY_F3),      /* S4 */
 175         KEY(0, 3, KEY_F4),      /* S5 */
 176         KEY(0, 4, KEY_F5),      /* S6 */
 177         KEY(0, 5, KEY_F6),      /* S7 */
 178         KEY(0, 6, KEY_F7),      /* S8 */
 179
 180         KEY(1, 0, KEY_Q),       /* S10 */
 181         KEY(1, 1, KEY_W),       /* S11 */
 182         KEY(1, 2, KEY_E),       /* S12 */
 183         KEY(1, 3, KEY_R),       /* S13 */
 184         KEY(1, 4, KEY_T),       /* S14 */
 185         KEY(1, 5, KEY_Y),       /* S15 */
 186         KEY(1, 6, KEY_U),       /* S16 */
 187         KEY(1, 7, KEY_I),       /* S17 */
 188         KEY(2, 0, KEY_A),       /* S18 */
 189         KEY(2, 1, KEY_S),       /* S19 */
 190         KEY(2, 2, KEY_D),       /* S20 */
 191         KEY(2, 3, KEY_F),       /* S21 */
 192         KEY(2, 4, KEY_G),       /* S22 */
 193         KEY(2, 5, KEY_H),       /* S23 */
 194         KEY(2, 6, KEY_J),       /* S24 */
 195         KEY(2, 7, KEY_K),       /* S25 */
 196         KEY(3, 0, KEY_ESC),     /* S26 */
 197         KEY(3, 1, KEY_Z),       /* S27 */
 198         KEY(3, 2, KEY_X),       /* S28 */
 199         KEY(3, 3, KEY_C),       /* S29 */
 200         KEY(3, 4, KEY_V),       /* S30 */
 201         KEY(3, 5, KEY_B),       /* S31 */
 202         KEY(3, 6, KEY_N),       /* S32 */
 203         KEY(3, 7, KEY_M),       /* S33 */
 204         KEY(4, 0, KEY_TAB),     /* S34 */
 205         KEY(4, 1, KEY_CAPSLOCK),        /* S35 */
 206         KEY(4, 2, KEY_BACKSLASH),       /* S36 */
 207         KEY(4, 3, KEY_APOSTROPHE),      /* S37 */
 208         KEY(4, 4, KEY_COMMA),   /* S38 */
 209         KEY(4, 5, KEY_DOT),     /* S39 */
 210         KEY(4, 6, KEY_SLASH),   /* S40 */
 211         KEY(4, 7, KEY_UP),      /* S41 */
 212         KEY(5, 0, KEY_O),       /* S42 */
 213         KEY(5, 1, KEY_L),       /* S43 */
 214         KEY(5, 2, KEY_EQUAL),   /* S44 */
 215         KEY(5, 3, KEY_QI_UPRED),        /* S45 */
 216         KEY(5, 4, KEY_SPACE),   /* S46 */
 217         KEY(5, 5, KEY_QI_QI),   /* S47 */
 218         KEY(5, 6, KEY_RIGHTCTRL),       /* S48 */
 219         KEY(5, 7, KEY_LEFT),    /* S49 */
 220         KEY(6, 0, KEY_F8),      /* S50 */
 221         KEY(6, 1, KEY_P),       /* S51 */
 222         KEY(6, 2, KEY_BACKSPACE),/* S52 */
 223         KEY(6, 3, KEY_ENTER),   /* S53 */
 224         KEY(6, 4, KEY_QI_VOLUP),        /* S54 */
 225         KEY(6, 5, KEY_QI_VOLDOWN),      /* S55 */
 226         KEY(6, 6, KEY_DOWN),    /* S56 */
 227         KEY(6, 7, KEY_RIGHT),   /* S57 */
 228
 229         KEY(7, 0, KEY_LEFTSHIFT),       /* S58 */
 230         KEY(7, 1, KEY_LEFTALT), /* S59 */
 231         KEY(7, 2, KEY_QI_FN),   /* S60 */
 232 };
 233
 234 static const struct matrix_keymap_data qi_lb60_keymap_data = {
 235         .keymap         = qi_lb60_keymap,
 236         .keymap_size    = ARRAY_SIZE(qi_lb60_keymap),
 237 };
 238
 239 static const unsigned int qi_lb60_keypad_cols[] = {
 240         QI_LB60_GPIO_KEYOUT(0),
 241         QI_LB60_GPIO_KEYOUT(1),
 242         QI_LB60_GPIO_KEYOUT(2),
 243         QI_LB60_GPIO_KEYOUT(3),
 244         QI_LB60_GPIO_KEYOUT(4),
 245         QI_LB60_GPIO_KEYOUT(5),
 246         QI_LB60_GPIO_KEYOUT(6),
 247         QI_LB60_GPIO_KEYOUT(7),
 248 };
 249
 250 static const unsigned int qi_lb60_keypad_rows[] = {
 251         QI_LB60_GPIO_KEYIN(0),
 252         QI_LB60_GPIO_KEYIN(1),
 253         QI_LB60_GPIO_KEYIN(2),
 254         QI_LB60_GPIO_KEYIN(3),
 255         QI_LB60_GPIO_KEYIN(4),
 256         QI_LB60_GPIO_KEYIN(5),
 257         QI_LB60_GPIO_KEYIN(6),
 258         QI_LB60_GPIO_KEYIN8,
 259 };
 260
 261 static struct matrix_keypad_platform_data qi_lb60_pdata = {
 262         .keymap_data = &qi_lb60_keymap_data,
 263         .col_gpios      = qi_lb60_keypad_cols,
 264         .row_gpios      = qi_lb60_keypad_rows,
 265         .num_col_gpios  = ARRAY_SIZE(qi_lb60_keypad_cols),
 266         .num_row_gpios  = ARRAY_SIZE(qi_lb60_keypad_rows),
 267         .col_scan_delay_us      = 10,
 268         .debounce_ms            = 10,
 269         .wakeup                 = 1,
 270         .active_low             = 1,
 271 };
 272
 273 static struct platform_device qi_lb60_keypad = {
 274         .name           = "matrix-keypad",
 275         .id             = -1,
 276         .dev            = {
 277                 .platform_data = &qi_lb60_pdata,
 278         },
 279 };
 280
 281 /* Display */
 282 static struct fb_videomode qi_lb60_video_modes[] = {
 283         {
 284                 .name = "320x240",
 285                 .xres = 320,
 286                 .yres = 240,
 287                 .refresh = 30,
 288                 .left_margin = 140,
 289                 .right_margin = 273,
 290                 .upper_margin = 20,
 291                 .lower_margin = 2,
 292                 .hsync_len = 1,
 293                 .vsync_len = 1,
 294                 .sync = 0,
 295                 .vmode = FB_VMODE_NONINTERLACED,
 296         },
 297 };
 298
 299 static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
 300         .width          = 60,
 301         .height         = 45,
 302         .num_modes      = ARRAY_SIZE(qi_lb60_video_modes),
 303         .modes          = qi_lb60_video_modes,
 304         .bpp            = 24,
 305         .lcd_type       = JZ_LCD_TYPE_8BIT_SERIAL,
 306         .pixclk_falling_edge = 1,
 307 };
 308
 309 struct spi_gpio_platform_data qi_lb60_spigpio_platform_data = {
 310         .num_chipselect = 1,
 311 };
 312
 313 static struct platform_device qi_lb60_spigpio_device = {
 314         .name = "spi_gpio",
 315         .id   = 1,
 316         .dev = {
 317                 .platform_data = &qi_lb60_spigpio_platform_data,
 318         },
 319 };
 320
 321 static struct gpiod_lookup_table qi_lb60_spigpio_gpio_table = {
 322         .dev_id         = "spi_gpio",
 323         .table          = {
 324                 GPIO_LOOKUP("GPIOC", 23,
 325                             "sck", GPIO_ACTIVE_HIGH),
 326                 GPIO_LOOKUP("GPIOC", 22,
 327                             "mosi", GPIO_ACTIVE_HIGH),
 328                 GPIO_LOOKUP("GPIOC", 21,
 329                             "cs", GPIO_ACTIVE_HIGH),
 330                 { },
 331         },
 332 };
 333
 334 static struct spi_board_info qi_lb60_spi_board_info[] = {
 335         {
 336                 .modalias = "ili8960",
 337                 .chip_select = 0,
 338                 .bus_num = 1,
 339                 .max_speed_hz = 30 * 1000,
 340                 .mode = SPI_3WIRE,
 341         },
 342 };
 343
 344 /* Battery */
 345 static struct jz_battery_platform_data qi_lb60_battery_pdata = {
 346         .gpio_charge =  JZ_GPIO_PORTC(27),
 347         .gpio_charge_active_low = 1,
 348         .info = {
 349                 .name = "battery",
 350                 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
 351                 .voltage_max_design = 4200000,
 352                 .voltage_min_design = 3600000,
 353         },
 354 };
 355
 356 /* GPIO Key: power */
 357 static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
 358         [0] = {
 359                 .code           = KEY_POWER,
 360                 .gpio           = JZ_GPIO_PORTD(29),
 361                 .active_low     = 1,
 362                 .desc           = "Power",
 363                 .wakeup         = 1,
 364         },
 365 };
 366
 367 static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
 368         .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
 369         .buttons = qi_lb60_gpio_keys_buttons,
 370 };
 371
 372 static struct platform_device qi_lb60_gpio_keys = {
 373         .name = "gpio-keys",
 374         .id =   -1,
 375         .dev = {
 376                 .platform_data = &qi_lb60_gpio_keys_data,
 377         }
 378 };
 379
 380 static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
 381         /* Intentionally left blank */
 382 };
 383
 384 static struct gpiod_lookup_table qi_lb60_mmc_gpio_table = {
 385         .dev_id = "jz4740-mmc.0",
 386         .table = {
 387                 GPIO_LOOKUP("GPIOD", 0, "cd", GPIO_ACTIVE_HIGH),
 388                 GPIO_LOOKUP("GPIOD", 2, "power", GPIO_ACTIVE_LOW),
 389                 { },
 390         },
 391 };
 392
 393 /* beeper */
 394 static struct pwm_lookup qi_lb60_pwm_lookup[] = {
 395         PWM_LOOKUP("jz4740-pwm", 4, "pwm-beeper", NULL, 0,
 396                    PWM_POLARITY_NORMAL),
 397 };
 398
 399 static struct platform_device qi_lb60_pwm_beeper = {
 400         .name = "pwm-beeper",
 401         .id = -1,
 402 };
 403
 404 /* charger */
 405 static char *qi_lb60_batteries[] = {
 406         "battery",
 407 };
 408
 409 static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
 410         .name = "usb",
 411         .type = POWER_SUPPLY_TYPE_USB,
 412         .gpio = JZ_GPIO_PORTD(28),
 413         .gpio_active_low = 1,
 414         .supplied_to = qi_lb60_batteries,
 415         .num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
 416 };
 417
 418 static struct platform_device qi_lb60_charger_device = {
 419         .name = "gpio-charger",
 420         .dev = {
 421                 .platform_data = &qi_lb60_charger_pdata,
 422         },
 423 };
 424
 425 /* audio */
 426 static struct platform_device qi_lb60_audio_device = {
 427         .name = "qi-lb60-audio",
 428         .id = -1,
 429 };
 430
 431 static struct gpiod_lookup_table qi_lb60_audio_gpio_table = {
 432         .dev_id = "qi-lb60-audio",
 433         .table = {
 434                 GPIO_LOOKUP("GPIOB", 29, "snd", 0),
 435                 GPIO_LOOKUP("GPIOD", 4, "amp", 0),
 436                 { },
 437         },
 438 };
 439
 440 static struct platform_device *jz_platform_devices[] __initdata = {
 441         &jz4740_udc_device,
 442         &jz4740_udc_xceiv_device,
 443         &jz4740_mmc_device,
 444         &jz4740_nand_device,
 445         &qi_lb60_keypad,
 446         &qi_lb60_spigpio_device,
 447         &jz4740_framebuffer_device,
 448         &jz4740_pcm_device,
 449         &jz4740_i2s_device,
 450         &jz4740_codec_device,
 451         &jz4740_adc_device,
 452         &jz4740_pwm_device,
 453         &jz4740_dma_device,
 454         &qi_lb60_gpio_keys,
 455         &qi_lb60_pwm_beeper,
 456         &qi_lb60_charger_device,
 457         &qi_lb60_audio_device,
 458 };
 459
 460 static unsigned long pin_cfg_bias_disable[] = {
 461             PIN_CONFIG_BIAS_DISABLE,
 462 };
 463
 464 static struct pinctrl_map pin_map[] __initdata = {
 465         /* NAND pin configuration */
 466         PIN_MAP_MUX_GROUP_DEFAULT("jz4740-nand",
 467                         "10010000.pin-controller", "nand-cs1", "nand"),
 468
 469         /* fbdev pin configuration */
 470         PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_DEFAULT,
 471                         "10010000.pin-controller", "lcd-8bit", "lcd"),
 472         PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_SLEEP,
 473                         "10010000.pin-controller", "lcd-no-pins", "lcd"),
 474
 475         /* MMC pin configuration */
 476         PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
 477                         "10010000.pin-controller", "mmc-1bit", "mmc"),
 478         PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
 479                         "10010000.pin-controller", "mmc-4bit", "mmc"),
 480         PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
 481                         "10010000.pin-controller", "PD0", pin_cfg_bias_disable),
 482         PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
 483                         "10010000.pin-controller", "PD2", pin_cfg_bias_disable),
 484
 485         /* PWM pin configuration */
 486         PIN_MAP_MUX_GROUP_DEFAULT("jz4740-pwm",
 487                         "10010000.pin-controller", "pwm4", "pwm4"),
 488 };
 489
 490
 491 static int __init qi_lb60_init_platform_devices(void)
 492 {
 493         jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
 494         jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
 495         jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
 496         jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
 497
 498         gpiod_add_lookup_table(&qi_lb60_audio_gpio_table);
 499         gpiod_add_lookup_table(&qi_lb60_nand_gpio_table);
 500         gpiod_add_lookup_table(&qi_lb60_spigpio_gpio_table);
 501         gpiod_add_lookup_table(&qi_lb60_mmc_gpio_table);
 502
 503         spi_register_board_info(qi_lb60_spi_board_info,
 504                                 ARRAY_SIZE(qi_lb60_spi_board_info));
 505
 506         pwm_add_table(qi_lb60_pwm_lookup, ARRAY_SIZE(qi_lb60_pwm_lookup));
 507         pinctrl_register_mappings(pin_map, ARRAY_SIZE(pin_map));
 508
 509         return platform_add_devices(jz_platform_devices,
 510                                         ARRAY_SIZE(jz_platform_devices));
 511
 512 }
 513
 514 static int __init qi_lb60_board_setup(void)
 515 {
 516         printk(KERN_INFO "Qi Hardware JZ4740 QI LB60 setup\n");
 517
 518         if (qi_lb60_init_platform_devices())
 519                 panic("Failed to initialize platform devices");
 520
 521         return 0;
 522 }
 523 arch_initcall(qi_lb60_board_setup);