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 #include "clock.h"
  41
  42 /* GPIOs */
  43 #define QI_LB60_GPIO_KEYOUT(x)          (JZ_GPIO_PORTC(10) + (x))
  44 #define QI_LB60_GPIO_KEYIN(x)           (JZ_GPIO_PORTD(18) + (x))
  45 #define QI_LB60_GPIO_KEYIN8             JZ_GPIO_PORTD(26)
  46
  47 /* NAND */
  48
  49 /* Early prototypes of the QI LB60 had only 1GB of NAND.
  50  * In order to support these devices as well the partition and ecc layout is
  51  * initialized depending on the NAND size */
  52 static struct mtd_partition qi_lb60_partitions_1gb[] = {
  53         {
  54                 .name = "NAND BOOT partition",
  55                 .offset = 0 * 0x100000,
  56                 .size = 4 * 0x100000,
  57         },
  58         {
  59                 .name = "NAND KERNEL partition",
  60                 .offset = 4 * 0x100000,
  61                 .size = 4 * 0x100000,
  62         },
  63         {
  64                 .name = "NAND ROOTFS partition",
  65                 .offset = 8 * 0x100000,
  66                 .size = (504 + 512) * 0x100000,
  67         },
  68 };
  69
  70 static struct mtd_partition qi_lb60_partitions_2gb[] = {
  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 + 1024) * 0x100000,
  85         },
  86 };
  87
  88 static int qi_lb60_ooblayout_ecc(struct mtd_info *mtd, int section,
  89                                  struct mtd_oob_region *oobregion)
  90 {
  91         if (section)
  92                 return -ERANGE;
  93
  94         oobregion->length = 36;
  95         oobregion->offset = 6;
  96
  97         if (mtd->oobsize == 128) {
  98                 oobregion->length *= 2;
  99                 oobregion->offset *= 2;
 100         }
 101
 102         return 0;
 103 }
 104
 105 static int qi_lb60_ooblayout_free(struct mtd_info *mtd, int section,
 106                                   struct mtd_oob_region *oobregion)
 107 {
 108         int eccbytes = 36, eccoff = 6;
 109
 110         if (section > 1)
 111                 return -ERANGE;
 112
 113         if (mtd->oobsize == 128) {
 114                 eccbytes *= 2;
 115                 eccoff *= 2;
 116         }
 117
 118         if (!section) {
 119                 oobregion->offset = 2;
 120                 oobregion->length = eccoff - 2;
 121         } else {
 122                 oobregion->offset = eccoff + eccbytes;
 123                 oobregion->length = mtd->oobsize - oobregion->offset;
 124         }
 125
 126         return 0;
 127 }
 128
 129 static const struct mtd_ooblayout_ops qi_lb60_ooblayout_ops = {
 130         .ecc = qi_lb60_ooblayout_ecc,
 131         .free = qi_lb60_ooblayout_free,
 132 };
 133
 134 static void qi_lb60_nand_ident(struct platform_device *pdev,
 135                 struct mtd_info *mtd, struct mtd_partition **partitions,
 136                 int *num_partitions)
 137 {
 138         struct nand_chip *chip = mtd_to_nand(mtd);
 139
 140         if (chip->page_shift == 12) {
 141                 *partitions = qi_lb60_partitions_2gb;
 142                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_2gb);
 143         } else {
 144                 *partitions = qi_lb60_partitions_1gb;
 145                 *num_partitions = ARRAY_SIZE(qi_lb60_partitions_1gb);
 146         }
 147
 148         mtd_set_ooblayout(mtd, &qi_lb60_ooblayout_ops);
 149 }
 150
 151 static struct jz_nand_platform_data qi_lb60_nand_pdata = {
 152         .ident_callback = qi_lb60_nand_ident,
 153         .banks = { 1 },
 154 };
 155
 156 static struct gpiod_lookup_table qi_lb60_nand_gpio_table = {
 157         .dev_id = "jz4740-nand.0",
 158         .table = {
 159                 GPIO_LOOKUP("GPIOC", 30, "busy", 0),
 160                 { },
 161         },
 162 };
 163
 164
 165 /* Keyboard*/
 166
 167 #define KEY_QI_QI       KEY_F13
 168 #define KEY_QI_UPRED    KEY_RIGHTALT
 169 #define KEY_QI_VOLUP    KEY_VOLUMEUP
 170 #define KEY_QI_VOLDOWN  KEY_VOLUMEDOWN
 171 #define KEY_QI_FN       KEY_LEFTCTRL
 172
 173 static const uint32_t qi_lb60_keymap[] = {
 174         KEY(0, 0, KEY_F1),      /* S2 */
 175         KEY(0, 1, KEY_F2),      /* S3 */
 176         KEY(0, 2, KEY_F3),      /* S4 */
 177         KEY(0, 3, KEY_F4),      /* S5 */
 178         KEY(0, 4, KEY_F5),      /* S6 */
 179         KEY(0, 5, KEY_F6),      /* S7 */
 180         KEY(0, 6, KEY_F7),      /* S8 */
 181
 182         KEY(1, 0, KEY_Q),       /* S10 */
 183         KEY(1, 1, KEY_W),       /* S11 */
 184         KEY(1, 2, KEY_E),       /* S12 */
 185         KEY(1, 3, KEY_R),       /* S13 */
 186         KEY(1, 4, KEY_T),       /* S14 */
 187         KEY(1, 5, KEY_Y),       /* S15 */
 188         KEY(1, 6, KEY_U),       /* S16 */
 189         KEY(1, 7, KEY_I),       /* S17 */
 190         KEY(2, 0, KEY_A),       /* S18 */
 191         KEY(2, 1, KEY_S),       /* S19 */
 192         KEY(2, 2, KEY_D),       /* S20 */
 193         KEY(2, 3, KEY_F),       /* S21 */
 194         KEY(2, 4, KEY_G),       /* S22 */
 195         KEY(2, 5, KEY_H),       /* S23 */
 196         KEY(2, 6, KEY_J),       /* S24 */
 197         KEY(2, 7, KEY_K),       /* S25 */
 198         KEY(3, 0, KEY_ESC),     /* S26 */
 199         KEY(3, 1, KEY_Z),       /* S27 */
 200         KEY(3, 2, KEY_X),       /* S28 */
 201         KEY(3, 3, KEY_C),       /* S29 */
 202         KEY(3, 4, KEY_V),       /* S30 */
 203         KEY(3, 5, KEY_B),       /* S31 */
 204         KEY(3, 6, KEY_N),       /* S32 */
 205         KEY(3, 7, KEY_M),       /* S33 */
 206         KEY(4, 0, KEY_TAB),     /* S34 */
 207         KEY(4, 1, KEY_CAPSLOCK),        /* S35 */
 208         KEY(4, 2, KEY_BACKSLASH),       /* S36 */
 209         KEY(4, 3, KEY_APOSTROPHE),      /* S37 */
 210         KEY(4, 4, KEY_COMMA),   /* S38 */
 211         KEY(4, 5, KEY_DOT),     /* S39 */
 212         KEY(4, 6, KEY_SLASH),   /* S40 */
 213         KEY(4, 7, KEY_UP),      /* S41 */
 214         KEY(5, 0, KEY_O),       /* S42 */
 215         KEY(5, 1, KEY_L),       /* S43 */
 216         KEY(5, 2, KEY_EQUAL),   /* S44 */
 217         KEY(5, 3, KEY_QI_UPRED),        /* S45 */
 218         KEY(5, 4, KEY_SPACE),   /* S46 */
 219         KEY(5, 5, KEY_QI_QI),   /* S47 */
 220         KEY(5, 6, KEY_RIGHTCTRL),       /* S48 */
 221         KEY(5, 7, KEY_LEFT),    /* S49 */
 222         KEY(6, 0, KEY_F8),      /* S50 */
 223         KEY(6, 1, KEY_P),       /* S51 */
 224         KEY(6, 2, KEY_BACKSPACE),/* S52 */
 225         KEY(6, 3, KEY_ENTER),   /* S53 */
 226         KEY(6, 4, KEY_QI_VOLUP),        /* S54 */
 227         KEY(6, 5, KEY_QI_VOLDOWN),      /* S55 */
 228         KEY(6, 6, KEY_DOWN),    /* S56 */
 229         KEY(6, 7, KEY_RIGHT),   /* S57 */
 230
 231         KEY(7, 0, KEY_LEFTSHIFT),       /* S58 */
 232         KEY(7, 1, KEY_LEFTALT), /* S59 */
 233         KEY(7, 2, KEY_QI_FN),   /* S60 */
 234 };
 235
 236 static const struct matrix_keymap_data qi_lb60_keymap_data = {
 237         .keymap         = qi_lb60_keymap,
 238         .keymap_size    = ARRAY_SIZE(qi_lb60_keymap),
 239 };
 240
 241 static const unsigned int qi_lb60_keypad_cols[] = {
 242         QI_LB60_GPIO_KEYOUT(0),
 243         QI_LB60_GPIO_KEYOUT(1),
 244         QI_LB60_GPIO_KEYOUT(2),
 245         QI_LB60_GPIO_KEYOUT(3),
 246         QI_LB60_GPIO_KEYOUT(4),
 247         QI_LB60_GPIO_KEYOUT(5),
 248         QI_LB60_GPIO_KEYOUT(6),
 249         QI_LB60_GPIO_KEYOUT(7),
 250 };
 251
 252 static const unsigned int qi_lb60_keypad_rows[] = {
 253         QI_LB60_GPIO_KEYIN(0),
 254         QI_LB60_GPIO_KEYIN(1),
 255         QI_LB60_GPIO_KEYIN(2),
 256         QI_LB60_GPIO_KEYIN(3),
 257         QI_LB60_GPIO_KEYIN(4),
 258         QI_LB60_GPIO_KEYIN(5),
 259         QI_LB60_GPIO_KEYIN(6),
 260         QI_LB60_GPIO_KEYIN8,
 261 };
 262
 263 static struct matrix_keypad_platform_data qi_lb60_pdata = {
 264         .keymap_data = &qi_lb60_keymap_data,
 265         .col_gpios      = qi_lb60_keypad_cols,
 266         .row_gpios      = qi_lb60_keypad_rows,
 267         .num_col_gpios  = ARRAY_SIZE(qi_lb60_keypad_cols),
 268         .num_row_gpios  = ARRAY_SIZE(qi_lb60_keypad_rows),
 269         .col_scan_delay_us      = 10,
 270         .debounce_ms            = 10,
 271         .wakeup                 = 1,
 272         .active_low             = 1,
 273 };
 274
 275 static struct platform_device qi_lb60_keypad = {
 276         .name           = "matrix-keypad",
 277         .id             = -1,
 278         .dev            = {
 279                 .platform_data = &qi_lb60_pdata,
 280         },
 281 };
 282
 283 /* Display */
 284 static struct fb_videomode qi_lb60_video_modes[] = {
 285         {
 286                 .name = "320x240",
 287                 .xres = 320,
 288                 .yres = 240,
 289                 .refresh = 30,
 290                 .left_margin = 140,
 291                 .right_margin = 273,
 292                 .upper_margin = 20,
 293                 .lower_margin = 2,
 294                 .hsync_len = 1,
 295                 .vsync_len = 1,
 296                 .sync = 0,
 297                 .vmode = FB_VMODE_NONINTERLACED,
 298         },
 299 };
 300
 301 static struct jz4740_fb_platform_data qi_lb60_fb_pdata = {
 302         .width          = 60,
 303         .height         = 45,
 304         .num_modes      = ARRAY_SIZE(qi_lb60_video_modes),
 305         .modes          = qi_lb60_video_modes,
 306         .bpp            = 24,
 307         .lcd_type       = JZ_LCD_TYPE_8BIT_SERIAL,
 308         .pixclk_falling_edge = 1,
 309 };
 310
 311 struct spi_gpio_platform_data qi_lb60_spigpio_platform_data = {
 312         .num_chipselect = 1,
 313 };
 314
 315 static struct platform_device qi_lb60_spigpio_device = {
 316         .name = "spi_gpio",
 317         .id   = 1,
 318         .dev = {
 319                 .platform_data = &qi_lb60_spigpio_platform_data,
 320         },
 321 };
 322
 323 static struct gpiod_lookup_table qi_lb60_spigpio_gpio_table = {
 324         .dev_id         = "spi_gpio",
 325         .table          = {
 326                 GPIO_LOOKUP("GPIOC", 23,
 327                             "sck", GPIO_ACTIVE_HIGH),
 328                 GPIO_LOOKUP("GPIOC", 22,
 329                             "mosi", GPIO_ACTIVE_HIGH),
 330                 GPIO_LOOKUP("GPIOC", 21,
 331                             "cs", GPIO_ACTIVE_HIGH),
 332                 { },
 333         },
 334 };
 335
 336 static struct spi_board_info qi_lb60_spi_board_info[] = {
 337         {
 338                 .modalias = "ili8960",
 339                 .chip_select = 0,
 340                 .bus_num = 1,
 341                 .max_speed_hz = 30 * 1000,
 342                 .mode = SPI_3WIRE,
 343         },
 344 };
 345
 346 /* Battery */
 347 static struct jz_battery_platform_data qi_lb60_battery_pdata = {
 348         .gpio_charge =  JZ_GPIO_PORTC(27),
 349         .gpio_charge_active_low = 1,
 350         .info = {
 351                 .name = "battery",
 352                 .technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
 353                 .voltage_max_design = 4200000,
 354                 .voltage_min_design = 3600000,
 355         },
 356 };
 357
 358 /* GPIO Key: power */
 359 static struct gpio_keys_button qi_lb60_gpio_keys_buttons[] = {
 360         [0] = {
 361                 .code           = KEY_POWER,
 362                 .gpio           = JZ_GPIO_PORTD(29),
 363                 .active_low     = 1,
 364                 .desc           = "Power",
 365                 .wakeup         = 1,
 366         },
 367 };
 368
 369 static struct gpio_keys_platform_data qi_lb60_gpio_keys_data = {
 370         .nbuttons = ARRAY_SIZE(qi_lb60_gpio_keys_buttons),
 371         .buttons = qi_lb60_gpio_keys_buttons,
 372 };
 373
 374 static struct platform_device qi_lb60_gpio_keys = {
 375         .name = "gpio-keys",
 376         .id =   -1,
 377         .dev = {
 378                 .platform_data = &qi_lb60_gpio_keys_data,
 379         }
 380 };
 381
 382 static struct jz4740_mmc_platform_data qi_lb60_mmc_pdata = {
 383         /* Intentionally left blank */
 384 };
 385
 386 static struct gpiod_lookup_table qi_lb60_mmc_gpio_table = {
 387         .dev_id = "jz4740-mmc.0",
 388         .table = {
 389                 GPIO_LOOKUP("GPIOD", 0, "cd", GPIO_ACTIVE_HIGH),
 390                 GPIO_LOOKUP("GPIOD", 2, "power", GPIO_ACTIVE_LOW),
 391                 { },
 392         },
 393 };
 394
 395 /* beeper */
 396 static struct pwm_lookup qi_lb60_pwm_lookup[] = {
 397         PWM_LOOKUP("jz4740-pwm", 4, "pwm-beeper", NULL, 0,
 398                    PWM_POLARITY_NORMAL),
 399 };
 400
 401 static struct platform_device qi_lb60_pwm_beeper = {
 402         .name = "pwm-beeper",
 403         .id = -1,
 404 };
 405
 406 /* charger */
 407 static char *qi_lb60_batteries[] = {
 408         "battery",
 409 };
 410
 411 static struct gpio_charger_platform_data qi_lb60_charger_pdata = {
 412         .name = "usb",
 413         .type = POWER_SUPPLY_TYPE_USB,
 414         .gpio = JZ_GPIO_PORTD(28),
 415         .gpio_active_low = 1,
 416         .supplied_to = qi_lb60_batteries,
 417         .num_supplicants = ARRAY_SIZE(qi_lb60_batteries),
 418 };
 419
 420 static struct platform_device qi_lb60_charger_device = {
 421         .name = "gpio-charger",
 422         .dev = {
 423                 .platform_data = &qi_lb60_charger_pdata,
 424         },
 425 };
 426
 427 /* audio */
 428 static struct platform_device qi_lb60_audio_device = {
 429         .name = "qi-lb60-audio",
 430         .id = -1,
 431 };
 432
 433 static struct gpiod_lookup_table qi_lb60_audio_gpio_table = {
 434         .dev_id = "qi-lb60-audio",
 435         .table = {
 436                 GPIO_LOOKUP("GPIOB", 29, "snd", 0),
 437                 GPIO_LOOKUP("GPIOD", 4, "amp", 0),
 438                 { },
 439         },
 440 };
 441
 442 static struct platform_device *jz_platform_devices[] __initdata = {
 443         &jz4740_udc_device,
 444         &jz4740_udc_xceiv_device,
 445         &jz4740_mmc_device,
 446         &jz4740_nand_device,
 447         &qi_lb60_keypad,
 448         &qi_lb60_spigpio_device,
 449         &jz4740_framebuffer_device,
 450         &jz4740_pcm_device,
 451         &jz4740_i2s_device,
 452         &jz4740_codec_device,
 453         &jz4740_adc_device,
 454         &jz4740_pwm_device,
 455         &jz4740_dma_device,
 456         &qi_lb60_gpio_keys,
 457         &qi_lb60_pwm_beeper,
 458         &qi_lb60_charger_device,
 459         &qi_lb60_audio_device,
 460 };
 461
 462 static unsigned long pin_cfg_bias_disable[] = {
 463             PIN_CONFIG_BIAS_DISABLE,
 464 };
 465
 466 static struct pinctrl_map pin_map[] __initdata = {
 467         /* NAND pin configuration */
 468         PIN_MAP_MUX_GROUP_DEFAULT("jz4740-nand",
 469                         "10010000.jz4740-pinctrl", "nand", "nand-cs1"),
 470
 471         /* fbdev pin configuration */
 472         PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_DEFAULT,
 473                         "10010000.jz4740-pinctrl", "lcd", "lcd-8bit"),
 474         PIN_MAP_MUX_GROUP("jz4740-fb", PINCTRL_STATE_SLEEP,
 475                         "10010000.jz4740-pinctrl", "lcd", "lcd-no-pins"),
 476
 477         /* MMC pin configuration */
 478         PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
 479                         "10010000.jz4740-pinctrl", "mmc", "mmc-1bit"),
 480         PIN_MAP_MUX_GROUP_DEFAULT("jz4740-mmc.0",
 481                         "10010000.jz4740-pinctrl", "mmc", "mmc-4bit"),
 482         PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
 483                         "10010000.jz4740-pinctrl", "PD0", pin_cfg_bias_disable),
 484         PIN_MAP_CONFIGS_PIN_DEFAULT("jz4740-mmc.0",
 485                         "10010000.jz4740-pinctrl", "PD2", pin_cfg_bias_disable),
 486
 487         /* PWM pin configuration */
 488         PIN_MAP_MUX_GROUP_DEFAULT("jz4740-pwm",
 489                         "10010000.jz4740-pinctrl", "pwm4", "pwm4"),
 490 };
 491
 492
 493 static int __init qi_lb60_init_platform_devices(void)
 494 {
 495         jz4740_framebuffer_device.dev.platform_data = &qi_lb60_fb_pdata;
 496         jz4740_nand_device.dev.platform_data = &qi_lb60_nand_pdata;
 497         jz4740_adc_device.dev.platform_data = &qi_lb60_battery_pdata;
 498         jz4740_mmc_device.dev.platform_data = &qi_lb60_mmc_pdata;
 499
 500         gpiod_add_lookup_table(&qi_lb60_audio_gpio_table);
 501         gpiod_add_lookup_table(&qi_lb60_nand_gpio_table);
 502         gpiod_add_lookup_table(&qi_lb60_spigpio_gpio_table);
 503         gpiod_add_lookup_table(&qi_lb60_mmc_gpio_table);
 504
 505         spi_register_board_info(qi_lb60_spi_board_info,
 506                                 ARRAY_SIZE(qi_lb60_spi_board_info));
 507
 508         pwm_add_table(qi_lb60_pwm_lookup, ARRAY_SIZE(qi_lb60_pwm_lookup));
 509         pinctrl_register_mappings(pin_map, ARRAY_SIZE(pin_map));
 510
 511         return platform_add_devices(jz_platform_devices,
 512                                         ARRAY_SIZE(jz_platform_devices));
 513
 514 }
 515
 516 static int __init qi_lb60_board_setup(void)
 517 {
 518         printk(KERN_INFO "Qi Hardware JZ4740 QI LB60 setup\n");
 519
 520         if (qi_lb60_init_platform_devices())
 521                 panic("Failed to initialize platform devices");
 522
 523         return 0;
 524 }
 525 arch_initcall(qi_lb60_board_setup);