arch/arm/mach-pxa/palmtc.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * linux/arch/arm/mach-pxa/palmtc.c
   4  *
   5  * Support for the Palm Tungsten|C
   6  *
   7  * Author:      Marek Vasut <marek.vasut@gmail.com>
   8  *
   9  * Based on work of:
  10  *              Petr Blaha <p3t3@centrum.cz>
  11  *              Chetan S. Kumar <shivakumar.chetan@gmail.com>
  12  */
  13
  14 #include <linux/platform_device.h>
  15 #include <linux/delay.h>
  16 #include <linux/irq.h>
  17 #include <linux/input.h>
  18 #include <linux/pwm.h>
  19 #include <linux/pwm_backlight.h>
  20 #include <linux/gpio/machine.h>
  21 #include <linux/input/matrix_keypad.h>
  22 #include <linux/ucb1400.h>
  23 #include <linux/power_supply.h>
  24 #include <linux/gpio_keys.h>
  25 #include <linux/mtd/physmap.h>
  26
  27 #include <asm/mach-types.h>
  28 #include <asm/mach/arch.h>
  29 #include <asm/mach/map.h>
  30
  31 #include "pxa25x.h"
  32 #include <mach/audio.h>
  33 #include <mach/palmtc.h>
  34 #include <linux/platform_data/mmc-pxamci.h>
  35 #include <linux/platform_data/video-pxafb.h>
  36 #include <linux/platform_data/irda-pxaficp.h>
  37 #include "udc.h"
  38
  39 #include "generic.h"
  40 #include "devices.h"
  41
  42 /******************************************************************************
  43  * Pin configuration
  44  ******************************************************************************/
  45 static unsigned long palmtc_pin_config[] __initdata = {
  46         /* MMC */
  47         GPIO6_MMC_CLK,
  48         GPIO8_MMC_CS0,
  49         GPIO12_GPIO,    /* detect */
  50         GPIO32_GPIO,    /* power */
  51         GPIO54_GPIO,    /* r/o switch */
  52
  53         /* PCMCIA */
  54         GPIO52_nPCE_1,
  55         GPIO53_nPCE_2,
  56         GPIO50_nPIOR,
  57         GPIO51_nPIOW,
  58         GPIO49_nPWE,
  59         GPIO48_nPOE,
  60         GPIO52_nPCE_1,
  61         GPIO53_nPCE_2,
  62         GPIO57_nIOIS16,
  63         GPIO56_nPWAIT,
  64
  65         /* AC97 */
  66         GPIO28_AC97_BITCLK,
  67         GPIO29_AC97_SDATA_IN_0,
  68         GPIO30_AC97_SDATA_OUT,
  69         GPIO31_AC97_SYNC,
  70
  71         /* IrDA */
  72         GPIO45_GPIO,    /* ir disable */
  73         GPIO46_FICP_RXD,
  74         GPIO47_FICP_TXD,
  75
  76         /* PWM */
  77         GPIO17_PWM1_OUT,
  78
  79         /* USB */
  80         GPIO4_GPIO,     /* detect */
  81         GPIO36_GPIO,    /* pullup */
  82
  83         /* LCD */
  84         GPIOxx_LCD_TFT_16BPP,
  85
  86         /* MATRIX KEYPAD */
  87         GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 0 */
  88         GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 1 */
  89         GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 2 */
  90         GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 3 */
  91         GPIO18_GPIO | MFP_LPM_DRIVE_LOW,        /* out 0 */
  92         GPIO19_GPIO | MFP_LPM_DRIVE_LOW,        /* out 1 */
  93         GPIO20_GPIO | MFP_LPM_DRIVE_LOW,        /* out 2 */
  94         GPIO21_GPIO | MFP_LPM_DRIVE_LOW,        /* out 3 */
  95         GPIO22_GPIO | MFP_LPM_DRIVE_LOW,        /* out 4 */
  96         GPIO23_GPIO | MFP_LPM_DRIVE_LOW,        /* out 5 */
  97         GPIO24_GPIO | MFP_LPM_DRIVE_LOW,        /* out 6 */
  98         GPIO25_GPIO | MFP_LPM_DRIVE_LOW,        /* out 7 */
  99         GPIO26_GPIO | MFP_LPM_DRIVE_LOW,        /* out 8 */
 100         GPIO27_GPIO | MFP_LPM_DRIVE_LOW,        /* out 9 */
 101         GPIO79_GPIO | MFP_LPM_DRIVE_LOW,        /* out 10 */
 102         GPIO80_GPIO | MFP_LPM_DRIVE_LOW,        /* out 11 */
 103
 104         /* PXA GPIO KEYS */
 105         GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH,       /* hotsync button on cradle */
 106
 107         /* MISC */
 108         GPIO1_RST,      /* reset */
 109         GPIO2_GPIO,     /* earphone detect */
 110         GPIO16_GPIO,    /* backlight switch */
 111 };
 112
 113 /******************************************************************************
 114  * SD/MMC card controller
 115  ******************************************************************************/
 116 #if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
 117 static struct pxamci_platform_data palmtc_mci_platform_data = {
 118         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 119         .detect_delay_ms        = 200,
 120 };
 121
 122 static struct gpiod_lookup_table palmtc_mci_gpio_table = {
 123         .dev_id = "pxa2xx-mci.0",
 124         .table = {
 125                 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_DETECT_N,
 126                             "cd", GPIO_ACTIVE_LOW),
 127                 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_READONLY,
 128                             "wp", GPIO_ACTIVE_LOW),
 129                 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_SD_POWER,
 130                             "power", GPIO_ACTIVE_HIGH),
 131                 { },
 132         },
 133 };
 134
 135 static void __init palmtc_mmc_init(void)
 136 {
 137         gpiod_add_lookup_table(&palmtc_mci_gpio_table);
 138         pxa_set_mci_info(&palmtc_mci_platform_data);
 139 }
 140 #else
 141 static inline void palmtc_mmc_init(void) {}
 142 #endif
 143
 144 /******************************************************************************
 145  * GPIO keys
 146  ******************************************************************************/
 147 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 148 static struct gpio_keys_button palmtc_pxa_buttons[] = {
 149         {KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
 150 };
 151
 152 static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
 153         .buttons        = palmtc_pxa_buttons,
 154         .nbuttons       = ARRAY_SIZE(palmtc_pxa_buttons),
 155 };
 156
 157 static struct platform_device palmtc_pxa_keys = {
 158         .name   = "gpio-keys",
 159         .id     = -1,
 160         .dev    = {
 161                 .platform_data = &palmtc_pxa_keys_data,
 162         },
 163 };
 164
 165 static void __init palmtc_keys_init(void)
 166 {
 167         platform_device_register(&palmtc_pxa_keys);
 168 }
 169 #else
 170 static inline void palmtc_keys_init(void) {}
 171 #endif
 172
 173 /******************************************************************************
 174  * Backlight
 175  ******************************************************************************/
 176 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
 177 static struct pwm_lookup palmtc_pwm_lookup[] = {
 178         PWM_LOOKUP("pxa25x-pwm.1", 0, "pwm-backlight.0", NULL, PALMTC_PERIOD_NS,
 179                    PWM_POLARITY_NORMAL),
 180 };
 181
 182 static struct platform_pwm_backlight_data palmtc_backlight_data = {
 183         .max_brightness = PALMTC_MAX_INTENSITY,
 184         .dft_brightness = PALMTC_MAX_INTENSITY,
 185         .enable_gpio    = GPIO_NR_PALMTC_BL_POWER,
 186 };
 187
 188 static struct platform_device palmtc_backlight = {
 189         .name   = "pwm-backlight",
 190         .dev    = {
 191                 .parent         = &pxa25x_device_pwm1.dev,
 192                 .platform_data  = &palmtc_backlight_data,
 193         },
 194 };
 195
 196 static void __init palmtc_pwm_init(void)
 197 {
 198         pwm_add_table(palmtc_pwm_lookup, ARRAY_SIZE(palmtc_pwm_lookup));
 199         platform_device_register(&palmtc_backlight);
 200 }
 201 #else
 202 static inline void palmtc_pwm_init(void) {}
 203 #endif
 204
 205 /******************************************************************************
 206  * IrDA
 207  ******************************************************************************/
 208 #if defined(CONFIG_IRDA) || defined(CONFIG_IRDA_MODULE)
 209 static struct pxaficp_platform_data palmtc_ficp_platform_data = {
 210         .gpio_pwdown            = GPIO_NR_PALMTC_IR_DISABLE,
 211         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 212 };
 213
 214 static void __init palmtc_irda_init(void)
 215 {
 216         pxa_set_ficp_info(&palmtc_ficp_platform_data);
 217 }
 218 #else
 219 static inline void palmtc_irda_init(void) {}
 220 #endif
 221
 222 /******************************************************************************
 223  * Keyboard
 224  ******************************************************************************/
 225 #if defined(CONFIG_KEYBOARD_MATRIX) || defined(CONFIG_KEYBOARD_MATRIX_MODULE)
 226 static const uint32_t palmtc_matrix_keys[] = {
 227         KEY(0, 0, KEY_F1),
 228         KEY(0, 1, KEY_X),
 229         KEY(0, 2, KEY_POWER),
 230         KEY(0, 3, KEY_TAB),
 231         KEY(0, 4, KEY_A),
 232         KEY(0, 5, KEY_Q),
 233         KEY(0, 6, KEY_LEFTSHIFT),
 234         KEY(0, 7, KEY_Z),
 235         KEY(0, 8, KEY_S),
 236         KEY(0, 9, KEY_W),
 237         KEY(0, 10, KEY_E),
 238         KEY(0, 11, KEY_UP),
 239
 240         KEY(1, 0, KEY_F2),
 241         KEY(1, 1, KEY_DOWN),
 242         KEY(1, 3, KEY_D),
 243         KEY(1, 4, KEY_C),
 244         KEY(1, 5, KEY_F),
 245         KEY(1, 6, KEY_R),
 246         KEY(1, 7, KEY_SPACE),
 247         KEY(1, 8, KEY_V),
 248         KEY(1, 9, KEY_G),
 249         KEY(1, 10, KEY_T),
 250         KEY(1, 11, KEY_LEFT),
 251
 252         KEY(2, 0, KEY_F3),
 253         KEY(2, 1, KEY_LEFTCTRL),
 254         KEY(2, 3, KEY_H),
 255         KEY(2, 4, KEY_Y),
 256         KEY(2, 5, KEY_N),
 257         KEY(2, 6, KEY_J),
 258         KEY(2, 7, KEY_U),
 259         KEY(2, 8, KEY_M),
 260         KEY(2, 9, KEY_K),
 261         KEY(2, 10, KEY_I),
 262         KEY(2, 11, KEY_RIGHT),
 263
 264         KEY(3, 0, KEY_F4),
 265         KEY(3, 1, KEY_ENTER),
 266         KEY(3, 3, KEY_DOT),
 267         KEY(3, 4, KEY_L),
 268         KEY(3, 5, KEY_O),
 269         KEY(3, 6, KEY_LEFTALT),
 270         KEY(3, 7, KEY_ENTER),
 271         KEY(3, 8, KEY_BACKSPACE),
 272         KEY(3, 9, KEY_P),
 273         KEY(3, 10, KEY_B),
 274         KEY(3, 11, KEY_FN),
 275 };
 276
 277 const struct matrix_keymap_data palmtc_keymap_data = {
 278         .keymap                 = palmtc_matrix_keys,
 279         .keymap_size            = ARRAY_SIZE(palmtc_matrix_keys),
 280 };
 281
 282 static const unsigned int palmtc_keypad_row_gpios[] = {
 283         0, 9, 10, 11
 284 };
 285
 286 static const unsigned int palmtc_keypad_col_gpios[] = {
 287         18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
 288 };
 289
 290 static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
 291         .keymap_data    = &palmtc_keymap_data,
 292         .row_gpios      = palmtc_keypad_row_gpios,
 293         .num_row_gpios  = ARRAY_SIZE(palmtc_keypad_row_gpios),
 294         .col_gpios      = palmtc_keypad_col_gpios,
 295         .num_col_gpios  = ARRAY_SIZE(palmtc_keypad_col_gpios),
 296         .active_low     = 1,
 297
 298         .debounce_ms            = 20,
 299         .col_scan_delay_us      = 5,
 300 };
 301
 302 static struct platform_device palmtc_keyboard = {
 303         .name   = "matrix-keypad",
 304         .id     = -1,
 305         .dev    = {
 306                 .platform_data = &palmtc_keypad_platform_data,
 307         },
 308 };
 309 static void __init palmtc_mkp_init(void)
 310 {
 311         platform_device_register(&palmtc_keyboard);
 312 }
 313 #else
 314 static inline void palmtc_mkp_init(void) {}
 315 #endif
 316
 317 /******************************************************************************
 318  * UDC
 319  ******************************************************************************/
 320 #if defined(CONFIG_USB_PXA25X)||defined(CONFIG_USB_PXA25X_MODULE)
 321 static struct gpiod_lookup_table palmtc_udc_gpiod_table = {
 322         .dev_id = "gpio-vbus",
 323         .table = {
 324                 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_USB_DETECT_N,
 325                             "vbus", GPIO_ACTIVE_LOW),
 326                 GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMTC_USB_POWER,
 327                             "pullup", GPIO_ACTIVE_HIGH),
 328                 { },
 329         },
 330 };
 331
 332 static struct platform_device palmtc_gpio_vbus = {
 333         .name   = "gpio-vbus",
 334         .id     = -1,
 335 };
 336
 337 static void __init palmtc_udc_init(void)
 338 {
 339         gpiod_add_lookup_table(&palmtc_udc_gpiod_table);
 340         platform_device_register(&palmtc_gpio_vbus);
 341 };
 342 #else
 343 static inline void palmtc_udc_init(void) {}
 344 #endif
 345
 346 /******************************************************************************
 347  * Touchscreen / Battery / GPIO-extender
 348  ******************************************************************************/
 349 #if     defined(CONFIG_TOUCHSCREEN_UCB1400) || \
 350         defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 351 static struct platform_device palmtc_ucb1400_device = {
 352         .name   = "ucb1400_core",
 353         .id     = -1,
 354 };
 355
 356 static void __init palmtc_ts_init(void)
 357 {
 358         pxa_set_ac97_info(NULL);
 359         platform_device_register(&palmtc_ucb1400_device);
 360 }
 361 #else
 362 static inline void palmtc_ts_init(void) {}
 363 #endif
 364
 365 /******************************************************************************
 366  * LEDs
 367  ******************************************************************************/
 368 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 369 struct gpio_led palmtc_gpio_leds[] = {
 370 {
 371         .name                   = "palmtc:green:user",
 372         .default_trigger        = "none",
 373         .gpio                   = GPIO_NR_PALMTC_LED_POWER,
 374         .active_low             = 1,
 375 }, {
 376         .name                   = "palmtc:vibra:vibra",
 377         .default_trigger        = "none",
 378         .gpio                   = GPIO_NR_PALMTC_VIBRA_POWER,
 379         .active_low             = 1,
 380 }
 381
 382 };
 383
 384 static struct gpio_led_platform_data palmtc_gpio_led_info = {
 385         .leds           = palmtc_gpio_leds,
 386         .num_leds       = ARRAY_SIZE(palmtc_gpio_leds),
 387 };
 388
 389 static struct platform_device palmtc_leds = {
 390         .name   = "leds-gpio",
 391         .id     = -1,
 392         .dev    = {
 393                 .platform_data  = &palmtc_gpio_led_info,
 394         }
 395 };
 396
 397 static void __init palmtc_leds_init(void)
 398 {
 399         platform_device_register(&palmtc_leds);
 400 }
 401 #else
 402 static inline void palmtc_leds_init(void) {}
 403 #endif
 404
 405 /******************************************************************************
 406  * NOR Flash
 407  ******************************************************************************/
 408 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
 409 static struct resource palmtc_flash_resource = {
 410         .start  = PXA_CS0_PHYS,
 411         .end    = PXA_CS0_PHYS + SZ_16M - 1,
 412         .flags  = IORESOURCE_MEM,
 413 };
 414
 415 static struct mtd_partition palmtc_flash_parts[] = {
 416         {
 417                 .name   = "U-Boot Bootloader",
 418                 .offset = 0x0,
 419                 .size   = 0x40000,
 420         },
 421         {
 422                 .name   = "Linux Kernel",
 423                 .offset = 0x40000,
 424                 .size   = 0x2c0000,
 425         },
 426         {
 427                 .name   = "Filesystem",
 428                 .offset = 0x300000,
 429                 .size   = 0xcc0000,
 430         },
 431         {
 432                 .name   = "U-Boot Environment",
 433                 .offset = 0xfc0000,
 434                 .size   = MTDPART_SIZ_FULL,
 435         },
 436 };
 437
 438 static struct physmap_flash_data palmtc_flash_data = {
 439         .width          = 4,
 440         .parts          = palmtc_flash_parts,
 441         .nr_parts       = ARRAY_SIZE(palmtc_flash_parts),
 442 };
 443
 444 static struct platform_device palmtc_flash = {
 445         .name           = "physmap-flash",
 446         .id             = -1,
 447         .resource       = &palmtc_flash_resource,
 448         .num_resources  = 1,
 449         .dev = {
 450                 .platform_data  = &palmtc_flash_data,
 451         },
 452 };
 453
 454 static void __init palmtc_nor_init(void)
 455 {
 456         platform_device_register(&palmtc_flash);
 457 }
 458 #else
 459 static inline void palmtc_nor_init(void) {}
 460 #endif
 461
 462 /******************************************************************************
 463  * Framebuffer
 464  ******************************************************************************/
 465 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 466 static struct pxafb_mode_info palmtc_lcd_modes[] = {
 467         {
 468                 .pixclock       = 115384,
 469                 .xres           = 320,
 470                 .yres           = 320,
 471                 .bpp            = 16,
 472
 473                 .left_margin    = 27,
 474                 .right_margin   = 7,
 475                 .upper_margin   = 7,
 476                 .lower_margin   = 8,
 477
 478                 .hsync_len      = 6,
 479                 .vsync_len      = 1,
 480         },
 481 };
 482
 483 static struct pxafb_mach_info palmtc_lcd_screen = {
 484         .modes                  = palmtc_lcd_modes,
 485         .num_modes              = ARRAY_SIZE(palmtc_lcd_modes),
 486         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 487 };
 488
 489 static void __init palmtc_lcd_init(void)
 490 {
 491         pxa_set_fb_info(NULL, &palmtc_lcd_screen);
 492 }
 493 #else
 494 static inline void palmtc_lcd_init(void) {}
 495 #endif
 496
 497 /******************************************************************************
 498  * Machine init
 499  ******************************************************************************/
 500 static void __init palmtc_init(void)
 501 {
 502         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
 503
 504         pxa_set_ffuart_info(NULL);
 505         pxa_set_btuart_info(NULL);
 506         pxa_set_stuart_info(NULL);
 507         pxa_set_hwuart_info(NULL);
 508
 509         palmtc_mmc_init();
 510         palmtc_keys_init();
 511         palmtc_pwm_init();
 512         palmtc_irda_init();
 513         palmtc_mkp_init();
 514         palmtc_udc_init();
 515         palmtc_ts_init();
 516         palmtc_nor_init();
 517         palmtc_lcd_init();
 518         palmtc_leds_init();
 519 };
 520
 521 MACHINE_START(PALMTC, "Palm Tungsten|C")
 522         .atag_offset    = 0x100,
 523         .map_io         = pxa25x_map_io,
 524         .nr_irqs        = PXA_NR_IRQS,
 525         .init_irq       = pxa25x_init_irq,
 526         .handle_irq     = pxa25x_handle_irq,
 527         .init_time      = pxa_timer_init,
 528         .init_machine   = palmtc_init,
 529         .restart        = pxa_restart,
 530 MACHINE_END