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         GPIOxx_LCD_TFT_16BPP,
  88
  89         /* MATRIX KEYPAD */
  90         GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 0 */
  91         GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH,       /* in 1 */
  92         GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 2 */
  93         GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH,      /* in 3 */
  94         GPIO18_GPIO | MFP_LPM_DRIVE_LOW,        /* out 0 */
  95         GPIO19_GPIO | MFP_LPM_DRIVE_LOW,        /* out 1 */
  96         GPIO20_GPIO | MFP_LPM_DRIVE_LOW,        /* out 2 */
  97         GPIO21_GPIO | MFP_LPM_DRIVE_LOW,        /* out 3 */
  98         GPIO22_GPIO | MFP_LPM_DRIVE_LOW,        /* out 4 */
  99         GPIO23_GPIO | MFP_LPM_DRIVE_LOW,        /* out 5 */
 100         GPIO24_GPIO | MFP_LPM_DRIVE_LOW,        /* out 6 */
 101         GPIO25_GPIO | MFP_LPM_DRIVE_LOW,        /* out 7 */
 102         GPIO26_GPIO | MFP_LPM_DRIVE_LOW,        /* out 8 */
 103         GPIO27_GPIO | MFP_LPM_DRIVE_LOW,        /* out 9 */
 104         GPIO79_GPIO | MFP_LPM_DRIVE_LOW,        /* out 10 */
 105         GPIO80_GPIO | MFP_LPM_DRIVE_LOW,        /* out 11 */
 106
 107         /* PXA GPIO KEYS */
 108         GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH,       /* hotsync button on cradle */
 109
 110         /* MISC */
 111         GPIO1_RST,      /* reset */
 112         GPIO2_GPIO,     /* earphone detect */
 113         GPIO16_GPIO,    /* backlight switch */
 114 };
 115
 116 /******************************************************************************
 117  * SD/MMC card controller
 118  ******************************************************************************/
 119 static struct pxamci_platform_data palmtc_mci_platform_data = {
 120         .ocr_mask               = MMC_VDD_32_33 | MMC_VDD_33_34,
 121         .gpio_power             = GPIO_NR_PALMTC_SD_POWER,
 122         .gpio_card_ro           = GPIO_NR_PALMTC_SD_READONLY,
 123         .gpio_card_detect       = GPIO_NR_PALMTC_SD_DETECT_N,
 124         .detect_delay_ms        = 200,
 125 };
 126
 127 /******************************************************************************
 128  * GPIO keys
 129  ******************************************************************************/
 130 static struct gpio_keys_button palmtc_pxa_buttons[] = {
 131         {KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
 132 };
 133
 134 static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
 135         .buttons        = palmtc_pxa_buttons,
 136         .nbuttons       = ARRAY_SIZE(palmtc_pxa_buttons),
 137 };
 138
 139 static struct platform_device palmtc_pxa_keys = {
 140         .name   = "gpio-keys",
 141         .id     = -1,
 142         .dev    = {
 143                 .platform_data = &palmtc_pxa_keys_data,
 144         },
 145 };
 146
 147 /******************************************************************************
 148  * Backlight
 149  ******************************************************************************/
 150 static int palmtc_backlight_init(struct device *dev)
 151 {
 152         int ret;
 153
 154         ret = gpio_request(GPIO_NR_PALMTC_BL_POWER, "BL POWER");
 155         if (ret)
 156                 goto err;
 157         ret = gpio_direction_output(GPIO_NR_PALMTC_BL_POWER, 1);
 158         if (ret)
 159                 goto err2;
 160
 161         return 0;
 162
 163 err2:
 164         gpio_free(GPIO_NR_PALMTC_BL_POWER);
 165 err:
 166         return ret;
 167 }
 168
 169 static int palmtc_backlight_notify(struct device *dev, int brightness)
 170 {
 171         /* backlight is on when GPIO16 AF0 is high */
 172         gpio_set_value(GPIO_NR_PALMTC_BL_POWER, brightness);
 173         return brightness;
 174 }
 175
 176 static void palmtc_backlight_exit(struct device *dev)
 177 {
 178         gpio_free(GPIO_NR_PALMTC_BL_POWER);
 179 }
 180
 181 static struct platform_pwm_backlight_data palmtc_backlight_data = {
 182         .pwm_id         = 1,
 183         .max_brightness = PALMTC_MAX_INTENSITY,
 184         .dft_brightness = PALMTC_MAX_INTENSITY,
 185         .pwm_period_ns  = PALMTC_PERIOD_NS,
 186         .init           = palmtc_backlight_init,
 187         .notify         = palmtc_backlight_notify,
 188         .exit           = palmtc_backlight_exit,
 189 };
 190
 191 static struct platform_device palmtc_backlight = {
 192         .name   = "pwm-backlight",
 193         .dev    = {
 194                 .parent         = &pxa25x_device_pwm1.dev,
 195                 .platform_data  = &palmtc_backlight_data,
 196         },
 197 };
 198
 199 /******************************************************************************
 200  * IrDA
 201  ******************************************************************************/
 202 static struct pxaficp_platform_data palmtc_ficp_platform_data = {
 203         .gpio_pwdown            = GPIO_NR_PALMTC_IR_DISABLE,
 204         .transceiver_cap        = IR_SIRMODE | IR_OFF,
 205 };
 206
 207 /******************************************************************************
 208  * Keyboard
 209  ******************************************************************************/
 210 static const uint32_t palmtc_matrix_keys[] = {
 211         KEY(0, 0, KEY_F1),
 212         KEY(0, 1, KEY_X),
 213         KEY(0, 2, KEY_POWER),
 214         KEY(0, 3, KEY_TAB),
 215         KEY(0, 4, KEY_A),
 216         KEY(0, 5, KEY_Q),
 217         KEY(0, 6, KEY_LEFTSHIFT),
 218         KEY(0, 7, KEY_Z),
 219         KEY(0, 8, KEY_S),
 220         KEY(0, 9, KEY_W),
 221         KEY(0, 10, KEY_E),
 222         KEY(0, 11, KEY_UP),
 223
 224         KEY(1, 0, KEY_F2),
 225         KEY(1, 1, KEY_DOWN),
 226         KEY(1, 3, KEY_D),
 227         KEY(1, 4, KEY_C),
 228         KEY(1, 5, KEY_F),
 229         KEY(1, 6, KEY_R),
 230         KEY(1, 7, KEY_SPACE),
 231         KEY(1, 8, KEY_V),
 232         KEY(1, 9, KEY_G),
 233         KEY(1, 10, KEY_T),
 234         KEY(1, 11, KEY_LEFT),
 235
 236         KEY(2, 0, KEY_F3),
 237         KEY(2, 1, KEY_LEFTCTRL),
 238         KEY(2, 3, KEY_H),
 239         KEY(2, 4, KEY_Y),
 240         KEY(2, 5, KEY_N),
 241         KEY(2, 6, KEY_J),
 242         KEY(2, 7, KEY_U),
 243         KEY(2, 8, KEY_M),
 244         KEY(2, 9, KEY_K),
 245         KEY(2, 10, KEY_I),
 246         KEY(2, 11, KEY_RIGHT),
 247
 248         KEY(3, 0, KEY_F4),
 249         KEY(3, 1, KEY_ENTER),
 250         KEY(3, 3, KEY_DOT),
 251         KEY(3, 4, KEY_L),
 252         KEY(3, 5, KEY_O),
 253         KEY(3, 6, KEY_LEFTALT),
 254         KEY(3, 7, KEY_ENTER),
 255         KEY(3, 8, KEY_BACKSPACE),
 256         KEY(3, 9, KEY_P),
 257         KEY(3, 10, KEY_B),
 258         KEY(3, 11, KEY_FN),
 259 };
 260
 261 const struct matrix_keymap_data palmtc_keymap_data = {
 262         .keymap                 = palmtc_matrix_keys,
 263         .keymap_size            = ARRAY_SIZE(palmtc_matrix_keys),
 264 };
 265
 266 static const unsigned int palmtc_keypad_row_gpios[] = {
 267         0, 9, 10, 11
 268 };
 269
 270 static const unsigned int palmtc_keypad_col_gpios[] = {
 271         18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
 272 };
 273
 274 static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
 275         .keymap_data    = &palmtc_keymap_data,
 276         .row_gpios      = palmtc_keypad_row_gpios,
 277         .num_row_gpios  = ARRAY_SIZE(palmtc_keypad_row_gpios),
 278         .col_gpios      = palmtc_keypad_col_gpios,
 279         .num_col_gpios  = ARRAY_SIZE(palmtc_keypad_col_gpios),
 280         .active_low     = 1,
 281
 282         .debounce_ms            = 20,
 283         .col_scan_delay_us      = 5,
 284 };
 285
 286 static struct platform_device palmtc_keyboard = {
 287         .name   = "matrix-keypad",
 288         .id     = -1,
 289         .dev    = {
 290                 .platform_data = &palmtc_keypad_platform_data,
 291         },
 292 };
 293
 294 /******************************************************************************
 295  * UDC
 296  ******************************************************************************/
 297 static struct pxa2xx_udc_mach_info palmtc_udc_info __initdata = {
 298         .gpio_vbus              = GPIO_NR_PALMTC_USB_DETECT_N,
 299         .gpio_vbus_inverted     = 1,
 300         .gpio_pullup            = GPIO_NR_PALMTC_USB_POWER,
 301 };
 302
 303 /******************************************************************************
 304  * Touchscreen / Battery / GPIO-extender
 305  ******************************************************************************/
 306 static struct platform_device palmtc_ucb1400_core = {
 307         .name   = "ucb1400_core",
 308         .id     = -1,
 309 };
 310
 311 /******************************************************************************
 312  * NOR Flash
 313  ******************************************************************************/
 314 static struct resource palmtc_flash_resource = {
 315         .start  = PXA_CS0_PHYS,
 316         .end    = PXA_CS0_PHYS + SZ_16M - 1,
 317         .flags  = IORESOURCE_MEM,
 318 };
 319
 320 static struct mtd_partition palmtc_flash_parts[] = {
 321         {
 322                 .name   = "U-Boot Bootloader",
 323                 .offset = 0x0,
 324                 .size   = 0x40000,
 325         },
 326         {
 327                 .name   = "Linux Kernel",
 328                 .offset = 0x40000,
 329                 .size   = 0x2c0000,
 330         },
 331         {
 332                 .name   = "Filesystem",
 333                 .offset = 0x300000,
 334                 .size   = 0xcc0000,
 335         },
 336         {
 337                 .name   = "U-Boot Environment",
 338                 .offset = 0xfc0000,
 339                 .size   = MTDPART_SIZ_FULL,
 340         },
 341 };
 342
 343 static struct physmap_flash_data palmtc_flash_data = {
 344         .width          = 4,
 345         .parts          = palmtc_flash_parts,
 346         .nr_parts       = ARRAY_SIZE(palmtc_flash_parts),
 347 };
 348
 349 static struct platform_device palmtc_flash = {
 350         .name           = "physmap-flash",
 351         .id             = -1,
 352         .resource       = &palmtc_flash_resource,
 353         .num_resources  = 1,
 354         .dev = {
 355                 .platform_data  = &palmtc_flash_data,
 356         },
 357 };
 358
 359 /******************************************************************************
 360  * Framebuffer
 361  ******************************************************************************/
 362 static struct pxafb_mode_info palmtc_lcd_modes[] = {
 363 {
 364         .pixclock       = 115384,
 365         .xres           = 320,
 366         .yres           = 320,
 367         .bpp            = 16,
 368
 369         .left_margin    = 27,
 370         .right_margin   = 7,
 371         .upper_margin   = 7,
 372         .lower_margin   = 8,
 373
 374         .hsync_len      = 6,
 375         .vsync_len      = 1,
 376 },
 377 };
 378
 379 static struct pxafb_mach_info palmtc_lcd_screen = {
 380         .modes                  = palmtc_lcd_modes,
 381         .num_modes              = ARRAY_SIZE(palmtc_lcd_modes),
 382         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 383 };
 384
 385 /******************************************************************************
 386  * Machine init
 387  ******************************************************************************/
 388 static struct platform_device *devices[] __initdata = {
 389         &palmtc_backlight,
 390         &palmtc_ucb1400_core,
 391         &palmtc_keyboard,
 392         &palmtc_pxa_keys,
 393         &palmtc_flash,
 394 };
 395
 396 static void __init palmtc_init(void)
 397 {
 398         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
 399
 400         pxa_set_ffuart_info(NULL);
 401         pxa_set_btuart_info(NULL);
 402         pxa_set_stuart_info(NULL);
 403         pxa_set_hwuart_info(NULL);
 404
 405         set_pxa_fb_info(&palmtc_lcd_screen);
 406         pxa_set_mci_info(&palmtc_mci_platform_data);
 407         pxa_set_udc_info(&palmtc_udc_info);
 408         pxa_set_ac97_info(NULL);
 409         pxa_set_ficp_info(&palmtc_ficp_platform_data);
 410
 411         platform_add_devices(devices, ARRAY_SIZE(devices));
 412 };
 413
 414 MACHINE_START(PALMTC, "Palm Tungsten|C")
 415         .boot_params    = 0xa0000100,
 416         .map_io         = pxa_map_io,
 417         .init_irq       = pxa25x_init_irq,
 418         .timer          = &pxa_timer,
 419         .init_machine   = palmtc_init
 420 MACHINE_END