arch/avr32/boards/atngw100/mrmt.c

   1 /*
   2  * Board-specific setup code for Remote Media Terminal 1 (RMT1)
   3  * add-on board for the ATNGW100 Network Gateway
   4  *
   5  * Copyright (C) 2008 Mediama Technologies
   6  * Based on ATNGW100 Network Gateway (Copyright (C) Atmel)
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12 #include <linux/gpio.h>
  13 #include <linux/init.h>
  14 #include <linux/irq.h>
  15 #include <linux/linkage.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/types.h>
  18 #include <linux/fb.h>
  19 #include <linux/leds.h>
  20 #include <linux/input.h>
  21 #include <linux/gpio_keys.h>
  22 #include <linux/atmel_serial.h>
  23 #include <linux/spi/spi.h>
  24 #include <linux/spi/ads7846.h>
  25
  26 #include <video/atmel_lcdc.h>
  27 #include <sound/atmel-ac97c.h>
  28
  29 #include <asm/delay.h>
  30 #include <asm/io.h>
  31 #include <asm/setup.h>
  32
  33 #include <mach/at32ap700x.h>
  34 #include <mach/board.h>
  35 #include <mach/init.h>
  36 #include <mach/portmux.h>
  37
  38 /* Define board-specifoic GPIO assignments */
  39 #define PIN_LCD_BL      GPIO_PIN_PA(28)
  40 #define PWM_CH_BL       0       /* Must match with GPIO pin definition */
  41 #define PIN_LCD_DISP    GPIO_PIN_PA(31)
  42 #define PIN_AC97_RST_N  GPIO_PIN_PA(30)
  43 #define PB_EXTINT_BASE  25
  44 #define TS_IRQ          0
  45 #define PIN_TS_EXTINT   GPIO_PIN_PB(PB_EXTINT_BASE+TS_IRQ)
  46 #define PIN_PB_LEFT     GPIO_PIN_PB(11)
  47 #define PIN_PB_RIGHT    GPIO_PIN_PB(12)
  48 #define PIN_PWR_SW_N    GPIO_PIN_PB(14)
  49 #define PIN_PWR_ON      GPIO_PIN_PB(13)
  50 #define PIN_ZB_RST_N    GPIO_PIN_PA(21)
  51 #define PIN_BT_RST      GPIO_PIN_PA(22)
  52 #define PIN_LED_SYS     GPIO_PIN_PA(16)
  53 #define PIN_LED_A       GPIO_PIN_PA(19)
  54 #define PIN_LED_B       GPIO_PIN_PE(19)
  55
  56 #ifdef CONFIG_BOARD_MRMT_LCD_LQ043T3DX0X
  57 /* Sharp LQ043T3DX0x (or compatible) panel */
  58 static struct fb_videomode __initdata lcd_fb_modes[] = {
  59         {
  60                 .name           = "480x272 @ 59.94Hz",
  61                 .refresh        = 59.94,
  62                 .xres           = 480,          .yres           = 272,
  63                 .pixclock       = KHZ2PICOS(9000),
  64
  65                 .left_margin    = 2,            .right_margin   = 2,
  66                 .upper_margin   = 3,            .lower_margin   = 9,
  67                 .hsync_len      = 41,           .vsync_len      = 1,
  68
  69                 .sync           = 0,
  70                 .vmode          = FB_VMODE_NONINTERLACED,
  71         },
  72 };
  73
  74 static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
  75         .manufacturer           = "SHA",
  76         .monitor                = "LQ043T3DX02",
  77         .modedb                 = lcd_fb_modes,
  78         .modedb_len             = ARRAY_SIZE(lcd_fb_modes),
  79         .hfmin                  = 14915,
  80         .hfmax                  = 17638,
  81         .vfmin                  = 53,
  82         .vfmax                  = 61,
  83         .dclkmax                = 9260000,
  84 };
  85
  86 static struct atmel_lcdfb_pdata __initdata rmt_lcdc_data = {
  87         .default_bpp            = 24,
  88         .default_dmacon         = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
  89         .default_lcdcon2        = (ATMEL_LCDC_DISTYPE_TFT
  90                                    | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
  91                                    | ATMEL_LCDC_INVCLK_NORMAL
  92                                    | ATMEL_LCDC_MEMOR_BIG),
  93         .lcd_wiring_mode        = ATMEL_LCDC_WIRING_RGB,
  94         .default_monspecs       = &lcd_fb_default_monspecs,
  95         .guard_time             = 2,
  96 };
  97 #endif
  98
  99 #ifdef CONFIG_BOARD_MRMT_LCD_KWH043GM08
 100 /* Sharp KWH043GM08-Fxx (or compatible) panel */
 101 static struct fb_videomode __initdata lcd_fb_modes[] = {
 102         {
 103                 .name           = "480x272 @ 59.94Hz",
 104                 .refresh        = 59.94,
 105                 .xres           = 480,          .yres           = 272,
 106                 .pixclock       = KHZ2PICOS(9000),
 107
 108                 .left_margin    = 2,            .right_margin   = 2,
 109                 .upper_margin   = 3,            .lower_margin   = 9,
 110                 .hsync_len      = 41,           .vsync_len      = 1,
 111
 112                 .sync           = 0,
 113                 .vmode          = FB_VMODE_NONINTERLACED,
 114         },
 115 };
 116
 117 static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
 118         .manufacturer           = "FOR",
 119         .monitor                = "KWH043GM08",
 120         .modedb                 = lcd_fb_modes,
 121         .modedb_len             = ARRAY_SIZE(lcd_fb_modes),
 122         .hfmin                  = 14915,
 123         .hfmax                  = 17638,
 124         .vfmin                  = 53,
 125         .vfmax                  = 61,
 126         .dclkmax                = 9260000,
 127 };
 128
 129 static struct atmel_lcdfb_pdata __initdata rmt_lcdc_data = {
 130         .default_bpp            = 24,
 131         .default_dmacon         = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 132         .default_lcdcon2        = (ATMEL_LCDC_DISTYPE_TFT
 133                                    | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
 134                                    | ATMEL_LCDC_INVCLK_INVERTED
 135                                    | ATMEL_LCDC_MEMOR_BIG),
 136         .lcd_wiring_mode        = ATMEL_LCDC_WIRING_RGB,
 137         .default_monspecs       = &lcd_fb_default_monspecs,
 138         .guard_time             = 2,
 139 };
 140 #endif
 141
 142 #ifdef CONFIG_BOARD_MRMT_AC97
 143 static struct ac97c_platform_data __initdata ac97c0_data = {
 144         .reset_pin              = PIN_AC97_RST_N,
 145 };
 146 #endif
 147
 148 #ifdef CONFIG_BOARD_MRMT_UCB1400_TS
 149 /* NOTE: IRQ assignment relies on kernel module parameter */
 150 static struct platform_device rmt_ts_device = {
 151         .name   = "ucb1400_ts",
 152         .id     = -1,
 153 };
 154 #endif
 155
 156 #ifdef CONFIG_BOARD_MRMT_BL_PWM
 157 /* PWM LEDs: LCD Backlight, etc */
 158 static struct gpio_led rmt_pwm_led[] = {
 159         /* here the "gpio" is actually a PWM channel */
 160         { .name = "backlight",  .gpio = PWM_CH_BL, },
 161 };
 162
 163 static struct gpio_led_platform_data rmt_pwm_led_data = {
 164         .num_leds       = ARRAY_SIZE(rmt_pwm_led),
 165         .leds           = rmt_pwm_led,
 166 };
 167
 168 static struct platform_device rmt_pwm_led_dev = {
 169         .name           = "leds-atmel-pwm",
 170         .id             = -1,
 171         .dev            = {
 172                 .platform_data  = &rmt_pwm_led_data,
 173         },
 174 };
 175 #endif
 176
 177 #ifdef CONFIG_BOARD_MRMT_ADS7846_TS
 178 static int ads7846_pendown_state(void)
 179 {
 180         return !gpio_get_value( PIN_TS_EXTINT );        /* PENIRQ.*/
 181 }
 182
 183 static struct ads7846_platform_data ads_info = {
 184         .model                          = 7846,
 185         .keep_vref_on                   = 0,    /* Use external VREF pin */
 186         .vref_delay_usecs               = 0,
 187         .vref_mv                        = 3300, /* VREF = 3.3V */
 188         .settle_delay_usecs             = 800,
 189         .penirq_recheck_delay_usecs     = 800,
 190         .x_plate_ohms                   = 750,
 191         .y_plate_ohms                   = 300,
 192         .pressure_max                   = 4096,
 193         .debounce_max                   = 1,
 194         .debounce_rep                   = 0,
 195         .debounce_tol                   = (~0),
 196         .get_pendown_state              = ads7846_pendown_state,
 197         .filter                         = NULL,
 198         .filter_init                    = NULL,
 199 };
 200
 201 static struct spi_board_info spi01_board_info[] __initdata = {
 202         {
 203                 .modalias       = "ads7846",
 204                 .max_speed_hz   = 31250*26,
 205                 .bus_num        = 0,
 206                 .chip_select    = 1,
 207                 .platform_data  = &ads_info,
 208                 .irq            = AT32_EXTINT(TS_IRQ),
 209         },
 210 };
 211 #endif
 212
 213 /* GPIO Keys: left, right, power, etc */
 214 static const struct gpio_keys_button rmt_gpio_keys_buttons[] = {
 215         [0] = {
 216                 .type           = EV_KEY,
 217                 .code           = KEY_POWER,
 218                 .gpio           = PIN_PWR_SW_N,
 219                 .active_low     = 1,
 220                 .desc           = "power button",
 221         },
 222         [1] = {
 223                 .type           = EV_KEY,
 224                 .code           = KEY_LEFT,
 225                 .gpio           = PIN_PB_LEFT,
 226                 .active_low     = 1,
 227                 .desc           = "left button",
 228         },
 229         [2] = {
 230                 .type           = EV_KEY,
 231                 .code           = KEY_RIGHT,
 232                 .gpio           = PIN_PB_RIGHT,
 233                 .active_low     = 1,
 234                 .desc           = "right button",
 235         },
 236 };
 237
 238 static const struct gpio_keys_platform_data rmt_gpio_keys_data = {
 239         .nbuttons =     ARRAY_SIZE(rmt_gpio_keys_buttons),
 240         .buttons =      (void *) rmt_gpio_keys_buttons,
 241 };
 242
 243 static struct platform_device rmt_gpio_keys = {
 244         .name =         "gpio-keys",
 245         .id =           -1,
 246         .dev = {
 247                 .platform_data = (void *) &rmt_gpio_keys_data,
 248         }
 249 };
 250
 251 #ifdef CONFIG_BOARD_MRMT_RTC_I2C
 252 static struct i2c_board_info __initdata mrmt1_i2c_rtc = {
 253         I2C_BOARD_INFO("s35390a", 0x30),
 254         .irq            = 0,
 255 };
 256 #endif
 257
 258 static void mrmt_power_off(void)
 259 {
 260         /* PWR_ON=0 will force power off */
 261         gpio_set_value( PIN_PWR_ON, 0 );
 262 }
 263
 264 static int __init mrmt1_init(void)
 265 {
 266         gpio_set_value( PIN_PWR_ON, 1 );        /* Ensure PWR_ON is enabled */
 267
 268         pm_power_off = mrmt_power_off;
 269
 270         /* Setup USARTS (other than console) */
 271         at32_map_usart(2, 1, 0);        /* USART 2: /dev/ttyS1, RMT1:DB9M */
 272         at32_map_usart(3, 2, ATMEL_USART_RTS | ATMEL_USART_CTS);
 273                         /* USART 3: /dev/ttyS2, RMT1:Wireless, w/ RTS/CTS */
 274         at32_add_device_usart(1);
 275         at32_add_device_usart(2);
 276
 277         /* Select GPIO Key pins */
 278         at32_select_gpio( PIN_PWR_SW_N, AT32_GPIOF_DEGLITCH);
 279         at32_select_gpio( PIN_PB_LEFT, AT32_GPIOF_DEGLITCH);
 280         at32_select_gpio( PIN_PB_RIGHT, AT32_GPIOF_DEGLITCH);
 281         platform_device_register(&rmt_gpio_keys);
 282
 283 #ifdef CONFIG_BOARD_MRMT_RTC_I2C
 284         i2c_register_board_info(0, &mrmt1_i2c_rtc, 1);
 285 #endif
 286
 287 #ifndef CONFIG_BOARD_MRMT_LCD_DISABLE
 288         /* User "alternate" LCDC inferface on Port E & D */
 289         /* NB: exclude LCDC_CC pin, as NGW100 reserves it for other use */
 290         at32_add_device_lcdc(0, &rmt_lcdc_data,
 291                 fbmem_start, fbmem_size,
 292                 (ATMEL_LCDC_ALT_24BIT | ATMEL_LCDC_PE_DVAL ) );
 293 #endif
 294
 295 #ifdef CONFIG_BOARD_MRMT_AC97
 296         at32_add_device_ac97c(0, &ac97c0_data, AC97C_BOTH);
 297 #endif
 298
 299 #ifdef CONFIG_BOARD_MRMT_ADS7846_TS
 300         /* Select the Touchscreen interrupt pin mode */
 301         at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
 302                         GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
 303         irq_set_irq_type(AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING);
 304         at32_spi_setup_slaves(0,spi01_board_info,ARRAY_SIZE(spi01_board_info));
 305         spi_register_board_info(spi01_board_info,ARRAY_SIZE(spi01_board_info));
 306 #endif
 307
 308 #ifdef CONFIG_BOARD_MRMT_UCB1400_TS
 309         /* Select the Touchscreen interrupt pin mode */
 310         at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
 311                         GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
 312         platform_device_register(&rmt_ts_device);
 313 #endif
 314
 315         at32_select_gpio( PIN_LCD_DISP, AT32_GPIOF_OUTPUT );
 316         gpio_request( PIN_LCD_DISP, "LCD_DISP" );
 317         gpio_direction_output( PIN_LCD_DISP, 0 );       /* LCD DISP */
 318 #ifdef CONFIG_BOARD_MRMT_LCD_DISABLE
 319         /* Keep Backlight and DISP off */
 320         at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
 321         gpio_request( PIN_LCD_BL, "LCD_BL" );
 322         gpio_direction_output( PIN_LCD_BL, 0 );         /* Backlight */
 323 #else
 324         gpio_set_value( PIN_LCD_DISP, 1 );      /* DISP asserted first */
 325 #ifdef CONFIG_BOARD_MRMT_BL_PWM
 326         /* Use PWM for Backlight controls */
 327         at32_add_device_pwm(1 << PWM_CH_BL);
 328         platform_device_register(&rmt_pwm_led_dev);
 329 #else
 330         /* Backlight always on */
 331         udelay( 1 );
 332         at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
 333         gpio_request( PIN_LCD_BL, "LCD_BL" );
 334         gpio_direction_output( PIN_LCD_BL, 1 );
 335 #endif
 336 #endif
 337
 338         /* Make sure BT and Zigbee modules in reset */
 339         at32_select_gpio( PIN_BT_RST, AT32_GPIOF_OUTPUT );
 340         gpio_request( PIN_BT_RST, "BT_RST" );
 341         gpio_direction_output( PIN_BT_RST, 1 );
 342         /* BT Module in Reset */
 343
 344         at32_select_gpio( PIN_ZB_RST_N, AT32_GPIOF_OUTPUT );
 345         gpio_request( PIN_ZB_RST_N, "ZB_RST_N" );
 346         gpio_direction_output( PIN_ZB_RST_N, 0 );
 347         /* XBee Module in Reset */
 348
 349 #ifdef CONFIG_BOARD_MRMT_WIRELESS_ZB
 350         udelay( 1000 );
 351         /* Unreset the XBee Module */
 352         gpio_set_value( PIN_ZB_RST_N, 1 );
 353 #endif
 354 #ifdef CONFIG_BOARD_MRMT_WIRELESS_BT
 355         udelay( 1000 );
 356         /* Unreset the BT Module */
 357         gpio_set_value( PIN_BT_RST, 0 );
 358 #endif
 359
 360         return 0;
 361 }
 362 arch_initcall(mrmt1_init);
 363
 364 static int __init mrmt1_early_init(void)
 365 {
 366         /* To maintain power-on signal in case boot loader did not already */
 367         at32_select_gpio( PIN_PWR_ON, AT32_GPIOF_OUTPUT );
 368         gpio_request( PIN_PWR_ON, "PIN_PWR_ON" );
 369         gpio_direction_output( PIN_PWR_ON, 1 );
 370
 371         return 0;
 372 }
 373 core_initcall(mrmt1_early_init);