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 40static 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 */ 51static 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 * initalized depending on the NAND size */ 69static 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 87static 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 106static 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 124static 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 139static 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 152static 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 215static const struct matrix_keymap_data qi_lb60_keymap_data = { 216 .keymap = qi_lb60_keymap, 217 .keymap_size = ARRAY_SIZE(qi_lb60_keymap), 218}; 219 220static 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 231static 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 242static 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 254static 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 */ 263static 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 280static 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 290struct 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 297static struct platform_device spigpio_device = { 298 .name = "spi_gpio", 299 .id = 1, 300 .dev = { 301 .platform_data = &spigpio_platform_data, 302 }, 303}; 304 305static 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 */ 317static 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 */ 329static 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 339static 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 344static 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 352static 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 */ 360static struct regulator_consumer_supply avt2_usb_regulator_consumer = 361 REGULATOR_SUPPLY("vbus", "jz4740-ohci"); 362 363static 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 375static 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 382static 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 */ 391static struct platform_device qi_lb60_pwm_beeper = { 392 .name = "pwm-beeper", 393 .id = -1, 394 .dev = { 395 .platform_data = (void *)4, 396 }, 397}; 398 399static 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 415static 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 423static 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 445struct jz4740_clock_board_data jz4740_clock_bdata = { 446 .ext_rate = 12000000, 447 .rtc_rate = 32768, 448}; 449 450static __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 459static 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 initalize platform devices\n"); 468 469 return 0; 470} 471arch_initcall(qi_lb60_board_setup); 472