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_info __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_info __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 }; 155 #endif 156 157 #ifdef CONFIG_BOARD_MRMT_BL_PWM 158 /* PWM LEDs: LCD Backlight, etc */ 159 static struct gpio_led rmt_pwm_led[] = { 160 /* here the "gpio" is actually a PWM channel */ 161 { .name = "backlight", .gpio = PWM_CH_BL, }, 162 }; 163 164 static struct gpio_led_platform_data rmt_pwm_led_data = { 165 .num_leds = ARRAY_SIZE(rmt_pwm_led), 166 .leds = rmt_pwm_led, 167 }; 168 169 static struct platform_device rmt_pwm_led_dev = { 170 .name = "leds-atmel-pwm", 171 .id = -1, 172 .dev = { 173 .platform_data = &rmt_pwm_led_data, 174 }, 175 }; 176 #endif 177 178 #ifdef CONFIG_BOARD_MRMT_ADS7846_TS 179 static int ads7846_pendown_state(void) 180 { 181 return !gpio_get_value( PIN_TS_EXTINT ); /* PENIRQ.*/ 182 } 183 184 static struct ads7846_platform_data ads_info = { 185 .model = 7846, 186 .keep_vref_on = 0, /* Use external VREF pin */ 187 .vref_delay_usecs = 0, 188 .vref_mv = 3300, /* VREF = 3.3V */ 189 .settle_delay_usecs = 800, 190 .penirq_recheck_delay_usecs = 800, 191 .x_plate_ohms = 750, 192 .y_plate_ohms = 300, 193 .pressure_max = 4096, 194 .debounce_max = 1, 195 .debounce_rep = 0, 196 .debounce_tol = (~0), 197 .get_pendown_state = ads7846_pendown_state, 198 .filter = NULL, 199 .filter_init = NULL, 200 }; 201 202 static struct spi_board_info spi01_board_info[] __initdata = { 203 { 204 .modalias = "ads7846", 205 .max_speed_hz = 31250*26, 206 .bus_num = 0, 207 .chip_select = 1, 208 .platform_data = &ads_info, 209 .irq = AT32_EXTINT(TS_IRQ), 210 }, 211 }; 212 #endif 213 214 /* GPIO Keys: left, right, power, etc */ 215 static const struct gpio_keys_button rmt_gpio_keys_buttons[] = { 216 [0] = { 217 .type = EV_KEY, 218 .code = KEY_POWER, 219 .gpio = PIN_PWR_SW_N, 220 .active_low = 1, 221 .desc = "power button", 222 }, 223 [1] = { 224 .type = EV_KEY, 225 .code = KEY_LEFT, 226 .gpio = PIN_PB_LEFT, 227 .active_low = 1, 228 .desc = "left button", 229 }, 230 [2] = { 231 .type = EV_KEY, 232 .code = KEY_RIGHT, 233 .gpio = PIN_PB_RIGHT, 234 .active_low = 1, 235 .desc = "right button", 236 }, 237 }; 238 239 static const struct gpio_keys_platform_data rmt_gpio_keys_data = { 240 .nbuttons = ARRAY_SIZE(rmt_gpio_keys_buttons), 241 .buttons = (void *) rmt_gpio_keys_buttons, 242 }; 243 244 static struct platform_device rmt_gpio_keys = { 245 .name = "gpio-keys", 246 .id = -1, 247 .dev = { 248 .platform_data = (void *) &rmt_gpio_keys_data, 249 } 250 }; 251 252 #ifdef CONFIG_BOARD_MRMT_RTC_I2C 253 static struct i2c_board_info __initdata mrmt1_i2c_rtc = { 254 I2C_BOARD_INFO("s35390a", 0x30), 255 .irq = 0, 256 }; 257 #endif 258 259 static void mrmt_power_off(void) 260 { 261 /* PWR_ON=0 will force power off */ 262 gpio_set_value( PIN_PWR_ON, 0 ); 263 } 264 265 static int __init mrmt1_init(void) 266 { 267 gpio_set_value( PIN_PWR_ON, 1 ); /* Ensure PWR_ON is enabled */ 268 269 pm_power_off = mrmt_power_off; 270 271 /* Setup USARTS (other than console) */ 272 at32_map_usart(2, 1, 0); /* USART 2: /dev/ttyS1, RMT1:DB9M */ 273 at32_map_usart(3, 2, ATMEL_USART_RTS | ATMEL_USART_CTS); 274 /* USART 3: /dev/ttyS2, RMT1:Wireless, w/ RTS/CTS */ 275 at32_add_device_usart(1); 276 at32_add_device_usart(2); 277 278 /* Select GPIO Key pins */ 279 at32_select_gpio( PIN_PWR_SW_N, AT32_GPIOF_DEGLITCH); 280 at32_select_gpio( PIN_PB_LEFT, AT32_GPIOF_DEGLITCH); 281 at32_select_gpio( PIN_PB_RIGHT, AT32_GPIOF_DEGLITCH); 282 platform_device_register(&rmt_gpio_keys); 283 284 #ifdef CONFIG_BOARD_MRMT_RTC_I2C 285 i2c_register_board_info(0, &mrmt1_i2c_rtc, 1); 286 #endif 287 288 #ifndef CONFIG_BOARD_MRMT_LCD_DISABLE 289 /* User "alternate" LCDC inferface on Port E & D */ 290 /* NB: exclude LCDC_CC pin, as NGW100 reserves it for other use */ 291 at32_add_device_lcdc(0, &rmt_lcdc_data, 292 fbmem_start, fbmem_size, 293 (ATMEL_LCDC_ALT_24BIT | ATMEL_LCDC_PE_DVAL ) ); 294 #endif 295 296 #ifdef CONFIG_BOARD_MRMT_AC97 297 at32_add_device_ac97c(0, &ac97c0_data, AC97C_BOTH); 298 #endif 299 300 #ifdef CONFIG_BOARD_MRMT_ADS7846_TS 301 /* Select the Touchscreen interrupt pin mode */ 302 at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ), 303 GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH); 304 irq_set_irq_type(AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING); 305 at32_spi_setup_slaves(0,spi01_board_info,ARRAY_SIZE(spi01_board_info)); 306 spi_register_board_info(spi01_board_info,ARRAY_SIZE(spi01_board_info)); 307 #endif 308 309 #ifdef CONFIG_BOARD_MRMT_UCB1400_TS 310 /* Select the Touchscreen interrupt pin mode */ 311 at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ), 312 GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH); 313 platform_device_register(&rmt_ts_device); 314 #endif 315 316 at32_select_gpio( PIN_LCD_DISP, AT32_GPIOF_OUTPUT ); 317 gpio_request( PIN_LCD_DISP, "LCD_DISP" ); 318 gpio_direction_output( PIN_LCD_DISP, 0 ); /* LCD DISP */ 319 #ifdef CONFIG_BOARD_MRMT_LCD_DISABLE 320 /* Keep Backlight and DISP off */ 321 at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT ); 322 gpio_request( PIN_LCD_BL, "LCD_BL" ); 323 gpio_direction_output( PIN_LCD_BL, 0 ); /* Backlight */ 324 #else 325 gpio_set_value( PIN_LCD_DISP, 1 ); /* DISP asserted first */ 326 #ifdef CONFIG_BOARD_MRMT_BL_PWM 327 /* Use PWM for Backlight controls */ 328 at32_add_device_pwm(1 << PWM_CH_BL); 329 platform_device_register(&rmt_pwm_led_dev); 330 #else 331 /* Backlight always on */ 332 udelay( 1 ); 333 at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT ); 334 gpio_request( PIN_LCD_BL, "LCD_BL" ); 335 gpio_direction_output( PIN_LCD_BL, 1 ); 336 #endif 337 #endif 338 339 /* Make sure BT and Zigbee modules in reset */ 340 at32_select_gpio( PIN_BT_RST, AT32_GPIOF_OUTPUT ); 341 gpio_request( PIN_BT_RST, "BT_RST" ); 342 gpio_direction_output( PIN_BT_RST, 1 ); 343 /* BT Module in Reset */ 344 345 at32_select_gpio( PIN_ZB_RST_N, AT32_GPIOF_OUTPUT ); 346 gpio_request( PIN_ZB_RST_N, "ZB_RST_N" ); 347 gpio_direction_output( PIN_ZB_RST_N, 0 ); 348 /* XBee Module in Reset */ 349 350 #ifdef CONFIG_BOARD_MRMT_WIRELESS_ZB 351 udelay( 1000 ); 352 /* Unreset the XBee Module */ 353 gpio_set_value( PIN_ZB_RST_N, 1 ); 354 #endif 355 #ifdef CONFIG_BOARD_MRMT_WIRELESS_BT 356 udelay( 1000 ); 357 /* Unreset the BT Module */ 358 gpio_set_value( PIN_BT_RST, 0 ); 359 #endif 360 361 return 0; 362 } 363 arch_initcall(mrmt1_init); 364 365 static int __init mrmt1_early_init(void) 366 { 367 /* To maintain power-on signal in case boot loader did not already */ 368 at32_select_gpio( PIN_PWR_ON, AT32_GPIOF_OUTPUT ); 369 gpio_request( PIN_PWR_ON, "PIN_PWR_ON" ); 370 gpio_direction_output( PIN_PWR_ON, 1 ); 371 372 return 0; 373 } 374 core_initcall(mrmt1_early_init); 375