arch/arm/mach-pxa/palmtc.c

   1 /*
   2  * linux/arch/arm/mach-pxa/palmtc.c
   3  *
   4  * Support for the Palm Tungsten|C
   5  *
   6  * Author:      Marek Vasut <marek.vasut@gmail.com>
   7  *
   8  * Based on work of:
   9  *              Petr Blaha <p3t3@centrum.cz>
  10  *              Chetan S. Kumar <shivakumar.chetan@gmail.com>
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License version 2 as
  14  * published by the Free Software Foundation.
  15  */
  16
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/irq.h>
  20 #include <linux/input.h>
  21 #include <linux/pwm_backlight.h>
  22 #include <linux/gpio.h>
  23 #include <linux/input/matrix_keypad.h>
  24 #include <linux/ucb1400.h>
  25 #include <linux/power_supply.h>
  26 #include <linux/gpio_keys.h>
  27 #include <linux/mtd/physmap.h>
  28
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32
  33 #include <mach/audio.h>
  34 #include <mach/palmtc.h>
  35 #include <mach/mmc.h>
  36 #include <mach/pxafb.h>
  37 #include <mach/mfp-pxa25x.h>
  38 #include <mach/irda.h>
  39 #include <mach/udc.h>
  40 #include <mach/pxa2xx-regs.h>
  41
  42 #include "generic.h"
  43 #include "devices.h"
  44
  45 /******************************************************************************
  46  * Pin configuration
  47  ******************************************************************************/
  48 static unsigned long palmtc_pin_config[] __initdata = {
  49         /* MMC */
  50         GPIO6_MMC_CLK,
  51         GPIO8_MMC_CS0,
  52         GPIO12_GPIO,    /* detect */
  53         GPIO32_GPIO,    /* power */
  54         GPIO54_GPIO,    /* r/o switch */
  55
  56         /* PCMCIA */
  57         GPIO52_nPCE_1,
  58         GPIO53_nPCE_2,
  59         GPIO50_nPIOR,
  60         GPIO51_nPIOW,
  61         GPIO49_nPWE,
  62         GPIO48_nPOE,
  63         GPIO52_nPCE_1,
  64         GPIO53_nPCE_2,
  65         GPIO57_nIOIS16,
  66         GPIO56_nPWAIT,
  67
  68         /* AC97 */
  69         GPIO28_AC97_BITCLK,
  70         GPIO29_AC97_SDATA_IN_0,
  71         GPIO30_AC97_SDATA_OUT,
  72         GPIO31_AC97_SYNC,
  73
  74         /* IrDA */
  75         GPIO45_GPIO,    /* ir disable */
  76         GPIO46_FICP_RXD,
  77         GPIO47_FICP_TXD,
  78
  79         /* PWM */
  80         GPIO17_PWM1_OUT,
  81
  82         /* USB */
  83         GPIO4_GPIO,     /* detect */
  84         GPIO36_GPIO,    /* pullup */
  85
  86         /* LCD */
  87         GPIO58_LCD_LDD_0,
  88         GPIO59_LCD_LDD_1,
  89         GPIO60_LCD_LDD_2,
  90         GPIO61_LCD_LDD_3,
  91         GPIO62_LCD_LDD_4,
  92         GPIO63_LCD_LDD_5,
  93         GPIO64_LCD_LDD_6,
  94         GPIO65_LCD_LDD_7,
  95         GPIO66_LCD_LDD_8,
  96         GPIO67_LCD_LDD_9,
  97         GPIO68_LCD_LDD_10,
  98         GPIO69_LCD_LDD_11,
  99         GPIO70_LCD_LDD_12,
 100         GPIO71_LCD_LDD_13,
 101         GPIO72_LCD_LDD_14,
 102         GPIO73_LCD_LDD_15,
 103         GPIO74_LCD_FCLK,
 104         GPIO75_LCD_LCLK,
 105         GPIO76_LCD_PCLK,
 106         GPIO77_LCD_BIAS,
 107
 108         /* MATRIX KEYPAD */
 109         GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 0 */
 110         GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 1 */
 111         GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 2 */
 112         GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 3 */
 113         GPIO18_GPIO | MFP_LPM_DRIVE_LOW,        /* out 0 */
 114         GPIO19_GPIO | MFP_LPM_DRIVE_LOW,        /* out 1 */
 115         GPIO20_GPIO | MFP_LPM_DRIVE_LOW,        /* out 2 */
 116         GPIO21_GPIO | MFP_LPM_DRIVE_LOW,        /* out 3 */
 117         GPIO22_GPIO | MFP_LPM_DRIVE_LOW,        /* out 4 */
 118         GPIO23_GPIO | MFP_LPM_DRIVE_LOW,        /* out 5 */
 119         GPIO24_GPIO | MFP_LPM_DRIVE_LOW,        /* out 6 */
 120         GPIO25_GPIO | MFP_LPM_DRIVE_LOW,        /* out 7 */
 121         GPIO26_GPIO | MFP_LPM_DRIVE_LOW,        /* out 8 */
 122         GPIO27_GPIO | MFP_LPM_DRIVE_LOW,        /* out 9 */
 123         GPIO79_GPIO | MFP_LPM_DRIVE_LOW,        /* out 10 */
 124         GPIO80_GPIO | MFP_LPM_DRIVE_LOW,        /* out 11 */
 125
 126         /* PXA GPIO KEYS */
 127         GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH,       /* hotsync button on cradle */
 128
 129         /* MISC */
 130         GPIO1_RST,      /* reset */
 131         GPIO2_GPIO,     /* earphone detect */
 132         GPIO16_GPIO,    /* backlight switch */
 133 };
 134
 135 /******************************************************************************
 136  * SD/MMC card controller
 137  ******************************************************************************/
 138 static struct pxamci_platform_data palmtc_mci_platform_data = {
 139         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 140         .gpio_power             = GPIO_NR_PALMTC_SD_POWER,
 141         .gpio_card_ro           = GPIO_NR_PALMTC_SD_READONLY,
 142         .gpio_card_detect       = GPIO_NR_PALMTC_SD_DETECT_N,
 143         .detect_delay           = 20,
 144 };
 145
 146 /******************************************************************************
 147  * GPIO keys
 148  ******************************************************************************/
 149 static struct gpio_keys_button palmtc_pxa_buttons[] = {
 150         {KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
 151 };
 152
 153 static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
 154         .buttons        = palmtc_pxa_buttons,
 155         .nbuttons       = ARRAY_SIZE(palmtc_pxa_buttons),
 156 };
 157
 158 static struct platform_device palmtc_pxa_keys = {
 159         .name   = "gpio-keys",
 160         .id     = -1,
 161         .dev    = {
 162                 .platform_data = &palmtc_pxa_keys_data,
 163         },
 164 };
 165
 166 /******************************************************************************
 167  * Backlight
 168  ******************************************************************************/
 169 static int palmtc_backlight_init(struct device *dev)
 170 {
 171         int ret;
 172
 173         ret = gpio_request(GPIO_NR_PALMTC_BL_POWER, "BL POWER");
 174         if (ret)
 175                 goto err;
 176         ret = gpio_direction_output(GPIO_NR_PALMTC_BL_POWER, 1);
 177         if (ret)
 178                 goto err2;
 179
 180         return 0;
 181
 182 err2:
 183         gpio_free(GPIO_NR_PALMTC_BL_POWER);
 184 err:
 185         return ret;
 186 }
 187
 188 static int palmtc_backlight_notify(int brightness)
 189 {
 190         /* backlight is on when GPIO16 AF0 is high */
 191         gpio_set_value(GPIO_NR_PALMTC_BL_POWER, brightness);
 192         return brightness;
 193 }
 194
 195 static void palmtc_backlight_exit(struct device *dev)
 196 {
 197         gpio_free(GPIO_NR_PALMTC_BL_POWER);
 198 }
 199
 200 static struct platform_pwm_backlight_data palmtc_backlight_data = {
 201         .pwm_id         = 1,
 202         .max_brightness = PALMTC_MAX_INTENSITY,
 203         .dft_brightness = PALMTC_MAX_INTENSITY,
 204         .pwm_period_ns  = PALMTC_PERIOD_NS,
 205         .init           = palmtc_backlight_init,
 206         .notify         = palmtc_backlight_notify,
 207         .exit           = palmtc_backlight_exit,
 208 };
 209
 210 static struct platform_device palmtc_backlight = {
 211         .name   = "pwm-backlight",
 212         .dev    = {
 213                 .parent         = &pxa25x_device_pwm1.dev,
 214                 .platform_data  = &palmtc_backlight_data,
 215         },
 216 };
 217
 218 /******************************************************************************
 219  * IrDA
 220  ******************************************************************************/
 221 static int palmtc_irda_startup(struct device *dev)
 222 {
 223         int err;
 224         err = gpio_request(GPIO_NR_PALMTC_IR_DISABLE, "IR DISABLE");
 225         if (err)
 226                 goto err;
 227         err = gpio_direction_output(GPIO_NR_PALMTC_IR_DISABLE, 1);
 228         if (err)
 229                 gpio_free(GPIO_NR_PALMTC_IR_DISABLE);
 230 err:
 231         return err;
 232 }
 233
 234 static void palmtc_irda_shutdown(struct device *dev)
 235 {
 236         gpio_free(GPIO_NR_PALMTC_IR_DISABLE);
 237 }
 238
 239 static void palmtc_irda_transceiver_mode(struct device *dev, int mode)
 240 {
 241         gpio_set_value(GPIO_NR_PALMTC_IR_DISABLE, mode & IR_OFF);
 242         pxa2xx_transceiver_mode(dev, mode);
 243 }
 244
 245 static struct pxaficp_platform_data palmtc_ficp_platform_data = {
 246         .startup                = palmtc_irda_startup,
 247         .shutdown               = palmtc_irda_shutdown,
 248         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 249         .transceiver_mode       = palmtc_irda_transceiver_mode,
 250 };
 251
 252 /******************************************************************************
 253  * Keyboard
 254  ******************************************************************************/
 255 static const uint32_t palmtc_matrix_keys[] = {
 256         KEY(0, 0, KEY_F1),
 257         KEY(0, 1, KEY_X),
 258         KEY(0, 2, KEY_POWER),
 259         KEY(0, 3, KEY_TAB),
 260         KEY(0, 4, KEY_A),
 261         KEY(0, 5, KEY_Q),
 262         KEY(0, 6, KEY_LEFTSHIFT),
 263         KEY(0, 7, KEY_Z),
 264         KEY(0, 8, KEY_S),
 265         KEY(0, 9, KEY_W),
 266         KEY(0, 10, KEY_E),
 267         KEY(0, 11, KEY_UP),
 268
 269         KEY(1, 0, KEY_F2),
 270         KEY(1, 1, KEY_DOWN),
 271         KEY(1, 3, KEY_D),
 272         KEY(1, 4, KEY_C),
 273         KEY(1, 5, KEY_F),
 274         KEY(1, 6, KEY_R),
 275         KEY(1, 7, KEY_SPACE),
 276         KEY(1, 8, KEY_V),
 277         KEY(1, 9, KEY_G),
 278         KEY(1, 10, KEY_T),
 279         KEY(1, 11, KEY_LEFT),
 280
 281         KEY(2, 0, KEY_F3),
 282         KEY(2, 1, KEY_LEFTCTRL),
 283         KEY(2, 3, KEY_H),
 284         KEY(2, 4, KEY_Y),
 285         KEY(2, 5, KEY_N),
 286         KEY(2, 6, KEY_J),
 287         KEY(2, 7, KEY_U),
 288         KEY(2, 8, KEY_M),
 289         KEY(2, 9, KEY_K),
 290         KEY(2, 10, KEY_I),
 291         KEY(2, 11, KEY_RIGHT),
 292
 293         KEY(3, 0, KEY_F4),
 294         KEY(3, 1, KEY_ENTER),
 295         KEY(3, 3, KEY_DOT),
 296         KEY(3, 4, KEY_L),
 297         KEY(3, 5, KEY_O),
 298         KEY(3, 6, KEY_LEFTALT),
 299         KEY(3, 7, KEY_ENTER),
 300         KEY(3, 8, KEY_BACKSPACE),
 301         KEY(3, 9, KEY_P),
 302         KEY(3, 10, KEY_B),
 303         KEY(3, 11, KEY_FN),
 304 };
 305
 306 const struct matrix_keymap_data palmtc_keymap_data = {
 307         .keymap                 = palmtc_matrix_keys,
 308         .keymap_size            = ARRAY_SIZE(palmtc_matrix_keys),
 309 };
 310
 311 const static unsigned int palmtc_keypad_row_gpios[] = {
 312         0, 9, 10, 11
 313 };
 314
 315 const static unsigned int palmtc_keypad_col_gpios[] = {
 316         18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
 317 };
 318
 319 static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
 320         .keymap_data    = &palmtc_keymap_data,
 321         .col_gpios      = palmtc_keypad_row_gpios,
 322         .num_col_gpios  = 12,
 323         .row_gpios      = palmtc_keypad_col_gpios,
 324         .num_row_gpios  = 4,
 325         .active_low     = 1,
 326
 327         .debounce_ms            = 20,
 328         .col_scan_delay_us      = 5,
 329 };
 330
 331 static struct platform_device palmtc_keyboard = {
 332         .name   = "matrix-keypad",
 333         .id     = -1,
 334         .dev    = {
 335                 .platform_data = &palmtc_keypad_platform_data,
 336         },
 337 };
 338
 339 /******************************************************************************
 340  * UDC
 341  ******************************************************************************/
 342 static struct pxa2xx_udc_mach_info palmtc_udc_info __initdata = {
 343         .gpio_vbus              = GPIO_NR_PALMTC_USB_DETECT_N,
 344         .gpio_vbus_inverted     = 1,
 345         .gpio_pullup            = GPIO_NR_PALMTC_USB_POWER,
 346 };
 347
 348 /******************************************************************************
 349  * Touchscreen / Battery / GPIO-extender
 350  ******************************************************************************/
 351 static struct platform_device palmtc_ucb1400_core = {
 352         .name   = "ucb1400_core",
 353         .id     = -1,
 354 };
 355
 356 /******************************************************************************
 357  * NOR Flash
 358  ******************************************************************************/
 359 static struct resource palmtc_flash_resource = {
 360         .start  = PXA_CS0_PHYS,
 361         .end    = PXA_CS0_PHYS + SZ_16M - 1,
 362         .flags  = IORESOURCE_MEM,
 363 };
 364
 365 static struct mtd_partition palmtc_flash_parts[] = {
 366         {
 367                 .name   = "U-Boot Bootloader",
 368                 .offset = 0x0,
 369                 .size   = 0x40000,
 370         },
 371         {
 372                 .name   = "Linux Kernel",
 373                 .offset = 0x40000,
 374                 .size   = 0x2c0000,
 375         },
 376         {
 377                 .name   = "Filesystem",
 378                 .offset = 0x300000,
 379                 .size   = 0xcc0000,
 380         },
 381         {
 382                 .name   = "U-Boot Environment",
 383                 .offset = 0xfc0000,
 384                 .size   = MTDPART_SIZ_FULL,
 385         },
 386 };
 387
 388 static struct physmap_flash_data palmtc_flash_data = {
 389         .width          = 4,
 390         .parts          = palmtc_flash_parts,
 391         .nr_parts       = ARRAY_SIZE(palmtc_flash_parts),
 392 };
 393
 394 static struct platform_device palmtc_flash = {
 395         .name           = "physmap-flash",
 396         .id             = -1,
 397         .resource       = &palmtc_flash_resource,
 398         .num_resources  = 1,
 399         .dev = {
 400                 .platform_data  = &palmtc_flash_data,
 401         },
 402 };
 403
 404 /******************************************************************************
 405  * Framebuffer
 406  ******************************************************************************/
 407 static struct pxafb_mode_info palmtc_lcd_modes[] = {
 408 {
 409         .pixclock       = 115384,
 410         .xres           = 320,
 411         .yres           = 320,
 412         .bpp            = 16,
 413
 414         .left_margin    = 27,
 415         .right_margin   = 7,
 416         .upper_margin   = 7,
 417         .lower_margin   = 8,
 418
 419         .hsync_len      = 6,
 420         .vsync_len      = 1,
 421 },
 422 };
 423
 424 static struct pxafb_mach_info palmtc_lcd_screen = {
 425         .modes                  = palmtc_lcd_modes,
 426         .num_modes              = ARRAY_SIZE(palmtc_lcd_modes),
 427         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 428 };
 429
 430 /******************************************************************************
 431  * Machine init
 432  ******************************************************************************/
 433 static struct platform_device *devices[] __initdata = {
 434         &palmtc_backlight,
 435         &palmtc_ucb1400_core,
 436         &palmtc_keyboard,
 437         &palmtc_pxa_keys,
 438         &palmtc_flash,
 439 };
 440
 441 static void __init palmtc_init(void)
 442 {
 443         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
 444
 445         set_pxa_fb_info(&palmtc_lcd_screen);
 446         pxa_set_mci_info(&palmtc_mci_platform_data);
 447         pxa_set_udc_info(&palmtc_udc_info);
 448         pxa_set_ac97_info(NULL);
 449         pxa_set_ficp_info(&palmtc_ficp_platform_data);
 450
 451         platform_add_devices(devices, ARRAY_SIZE(devices));
 452 };
 453
 454 MACHINE_START(PALMTC, "Palm Tungsten|C")
 455         .phys_io        = 0x40000000,
 456         .boot_params    = 0xa0000100,
 457         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 458         .map_io         = pxa_map_io,
 459         .init_irq       = pxa25x_init_irq,
 460         .timer          = &pxa_timer,
 461         .init_machine   = palmtc_init
 462 MACHINE_END