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/pwm.h>
21 #include <linux/leds_pwm.h>
22 #include <linux/input.h>
23 #include <linux/gpio_keys.h>
24 #include <linux/spi/spi.h>
25 #include <linux/spi/ads7846.h>
26
27 #include <video/atmel_lcdc.h>
28 #include <sound/atmel-ac97c.h>
29
30 #include <asm/delay.h>
31 #include <asm/io.h>
32 #include <asm/setup.h>
33
34 #include <mach/at32ap700x.h>
35 #include <mach/board.h>
36 #include <mach/init.h>
37 #include <mach/portmux.h>
38
39 /* Define board-specifoic GPIO assignments */
40 #define PIN_LCD_BL GPIO_PIN_PA(28)
41 #define PWM_CH_BL 0 /* Must match with GPIO pin definition */
42 #define PIN_LCD_DISP GPIO_PIN_PA(31)
43 #define PIN_AC97_RST_N GPIO_PIN_PA(30)
44 #define PB_EXTINT_BASE 25
45 #define TS_IRQ 0
46 #define PIN_TS_EXTINT GPIO_PIN_PB(PB_EXTINT_BASE+TS_IRQ)
47 #define PIN_PB_LEFT GPIO_PIN_PB(11)
48 #define PIN_PB_RIGHT GPIO_PIN_PB(12)
49 #define PIN_PWR_SW_N GPIO_PIN_PB(14)
50 #define PIN_PWR_ON GPIO_PIN_PB(13)
51 #define PIN_ZB_RST_N GPIO_PIN_PA(21)
52 #define PIN_BT_RST GPIO_PIN_PA(22)
53 #define PIN_LED_SYS GPIO_PIN_PA(16)
54 #define PIN_LED_A GPIO_PIN_PA(19)
55 #define PIN_LED_B GPIO_PIN_PE(19)
56
57 #ifdef CONFIG_BOARD_MRMT_LCD_LQ043T3DX0X
58 /* Sharp LQ043T3DX0x (or compatible) panel */
59 static struct fb_videomode __initdata lcd_fb_modes[] = {
60 {
61 .name = "480x272 @ 59.94Hz",
62 .refresh = 59.94,
63 .xres = 480, .yres = 272,
64 .pixclock = KHZ2PICOS(9000),
65
66 .left_margin = 2, .right_margin = 2,
67 .upper_margin = 3, .lower_margin = 9,
68 .hsync_len = 41, .vsync_len = 1,
69
70 .sync = 0,
71 .vmode = FB_VMODE_NONINTERLACED,
72 },
73 };
74
75 static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
76 .manufacturer = "SHA",
77 .monitor = "LQ043T3DX02",
78 .modedb = lcd_fb_modes,
79 .modedb_len = ARRAY_SIZE(lcd_fb_modes),
80 .hfmin = 14915,
81 .hfmax = 17638,
82 .vfmin = 53,
83 .vfmax = 61,
84 .dclkmax = 9260000,
85 };
86
87 static struct atmel_lcdfb_pdata __initdata rmt_lcdc_data = {
88 .default_bpp = 24,
89 .default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
90 .default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT
91 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
92 | ATMEL_LCDC_INVCLK_NORMAL
93 | ATMEL_LCDC_MEMOR_BIG),
94 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
95 .default_monspecs = &lcd_fb_default_monspecs,
96 .guard_time = 2,
97 };
98 #endif
99
100 #ifdef CONFIG_BOARD_MRMT_LCD_KWH043GM08
101 /* Sharp KWH043GM08-Fxx (or compatible) panel */
102 static struct fb_videomode __initdata lcd_fb_modes[] = {
103 {
104 .name = "480x272 @ 59.94Hz",
105 .refresh = 59.94,
106 .xres = 480, .yres = 272,
107 .pixclock = KHZ2PICOS(9000),
108
109 .left_margin = 2, .right_margin = 2,
110 .upper_margin = 3, .lower_margin = 9,
111 .hsync_len = 41, .vsync_len = 1,
112
113 .sync = 0,
114 .vmode = FB_VMODE_NONINTERLACED,
115 },
116 };
117
118 static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
119 .manufacturer = "FOR",
120 .monitor = "KWH043GM08",
121 .modedb = lcd_fb_modes,
122 .modedb_len = ARRAY_SIZE(lcd_fb_modes),
123 .hfmin = 14915,
124 .hfmax = 17638,
125 .vfmin = 53,
126 .vfmax = 61,
127 .dclkmax = 9260000,
128 };
129
130 static struct atmel_lcdfb_pdata __initdata rmt_lcdc_data = {
131 .default_bpp = 24,
132 .default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
133 .default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT
134 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
135 | ATMEL_LCDC_INVCLK_INVERTED
136 | ATMEL_LCDC_MEMOR_BIG),
137 .lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
138 .default_monspecs = &lcd_fb_default_monspecs,
139 .guard_time = 2,
140 };
141 #endif
142
143 #ifdef CONFIG_BOARD_MRMT_AC97
144 static struct ac97c_platform_data __initdata ac97c0_data = {
145 .reset_pin = PIN_AC97_RST_N,
146 };
147 #endif
148
149 #ifdef CONFIG_BOARD_MRMT_UCB1400_TS
150 /* NOTE: IRQ assignment relies on kernel module parameter */
151 static struct platform_device rmt_ts_device = {
152 .name = "ucb1400_ts",
153 .id = -1,
154 };
155 #endif
156
157 #ifdef CONFIG_BOARD_MRMT_BL_PWM
158 /* PWM LEDs: LCD Backlight, etc */
159 static struct pwm_lookup pwm_lookup[] = {
160 PWM_LOOKUP("at91sam9rl-pwm", PWM_CH_BL, "leds_pwm", "ds1",
161 5000, PWM_POLARITY_INVERSED),
162 };
163
164 static struct led_pwm pwm_leds[] = {
165 {
166 .name = "backlight",
167 .max_brightness = 255,
168 },
169 };
170
171 static struct led_pwm_platform_data pwm_data = {
172 .num_leds = ARRAY_SIZE(pwm_leds),
173 .leds = pwm_leds,
174 };
175
176 static struct platform_device leds_pwm = {
177 .name = "leds_pwm",
178 .id = -1,
179 .dev = {
180 .platform_data = &pwm_data,
181 },
182 };
183 #endif
184
185 #ifdef CONFIG_BOARD_MRMT_ADS7846_TS
ads7846_pendown_state(void)186 static int ads7846_pendown_state(void)
187 {
188 return !gpio_get_value( PIN_TS_EXTINT ); /* PENIRQ.*/
189 }
190
191 static struct ads7846_platform_data ads_info = {
192 .model = 7846,
193 .keep_vref_on = 0, /* Use external VREF pin */
194 .vref_delay_usecs = 0,
195 .vref_mv = 3300, /* VREF = 3.3V */
196 .settle_delay_usecs = 800,
197 .penirq_recheck_delay_usecs = 800,
198 .x_plate_ohms = 750,
199 .y_plate_ohms = 300,
200 .pressure_max = 4096,
201 .debounce_max = 1,
202 .debounce_rep = 0,
203 .debounce_tol = (~0),
204 .get_pendown_state = ads7846_pendown_state,
205 .filter = NULL,
206 .filter_init = NULL,
207 };
208
209 static struct spi_board_info spi01_board_info[] __initdata = {
210 {
211 .modalias = "ads7846",
212 .max_speed_hz = 31250*26,
213 .bus_num = 0,
214 .chip_select = 1,
215 .platform_data = &ads_info,
216 .irq = AT32_EXTINT(TS_IRQ),
217 },
218 };
219 #endif
220
221 /* GPIO Keys: left, right, power, etc */
222 static const struct gpio_keys_button rmt_gpio_keys_buttons[] = {
223 [0] = {
224 .type = EV_KEY,
225 .code = KEY_POWER,
226 .gpio = PIN_PWR_SW_N,
227 .active_low = 1,
228 .desc = "power button",
229 },
230 [1] = {
231 .type = EV_KEY,
232 .code = KEY_LEFT,
233 .gpio = PIN_PB_LEFT,
234 .active_low = 1,
235 .desc = "left button",
236 },
237 [2] = {
238 .type = EV_KEY,
239 .code = KEY_RIGHT,
240 .gpio = PIN_PB_RIGHT,
241 .active_low = 1,
242 .desc = "right button",
243 },
244 };
245
246 static const struct gpio_keys_platform_data rmt_gpio_keys_data = {
247 .nbuttons = ARRAY_SIZE(rmt_gpio_keys_buttons),
248 .buttons = (void *) rmt_gpio_keys_buttons,
249 };
250
251 static struct platform_device rmt_gpio_keys = {
252 .name = "gpio-keys",
253 .id = -1,
254 .dev = {
255 .platform_data = (void *) &rmt_gpio_keys_data,
256 }
257 };
258
259 #ifdef CONFIG_BOARD_MRMT_RTC_I2C
260 static struct i2c_board_info __initdata mrmt1_i2c_rtc = {
261 I2C_BOARD_INFO("s35390a", 0x30),
262 .irq = 0,
263 };
264 #endif
265
mrmt_power_off(void)266 static void mrmt_power_off(void)
267 {
268 /* PWR_ON=0 will force power off */
269 gpio_set_value( PIN_PWR_ON, 0 );
270 }
271
mrmt1_init(void)272 static int __init mrmt1_init(void)
273 {
274 gpio_set_value( PIN_PWR_ON, 1 ); /* Ensure PWR_ON is enabled */
275
276 pm_power_off = mrmt_power_off;
277
278 /* Setup USARTS (other than console) */
279 at32_map_usart(2, 1, 0); /* USART 2: /dev/ttyS1, RMT1:DB9M */
280 at32_map_usart(3, 2, ATMEL_USART_RTS | ATMEL_USART_CTS);
281 /* USART 3: /dev/ttyS2, RMT1:Wireless, w/ RTS/CTS */
282 at32_add_device_usart(1);
283 at32_add_device_usart(2);
284
285 /* Select GPIO Key pins */
286 at32_select_gpio( PIN_PWR_SW_N, AT32_GPIOF_DEGLITCH);
287 at32_select_gpio( PIN_PB_LEFT, AT32_GPIOF_DEGLITCH);
288 at32_select_gpio( PIN_PB_RIGHT, AT32_GPIOF_DEGLITCH);
289 platform_device_register(&rmt_gpio_keys);
290
291 #ifdef CONFIG_BOARD_MRMT_RTC_I2C
292 i2c_register_board_info(0, &mrmt1_i2c_rtc, 1);
293 #endif
294
295 #ifndef CONFIG_BOARD_MRMT_LCD_DISABLE
296 /* User "alternate" LCDC inferface on Port E & D */
297 /* NB: exclude LCDC_CC pin, as NGW100 reserves it for other use */
298 at32_add_device_lcdc(0, &rmt_lcdc_data,
299 fbmem_start, fbmem_size,
300 (ATMEL_LCDC_ALT_24BIT | ATMEL_LCDC_PE_DVAL ) );
301 #endif
302
303 #ifdef CONFIG_BOARD_MRMT_AC97
304 at32_add_device_ac97c(0, &ac97c0_data, AC97C_BOTH);
305 #endif
306
307 #ifdef CONFIG_BOARD_MRMT_ADS7846_TS
308 /* Select the Touchscreen interrupt pin mode */
309 at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
310 GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
311 irq_set_irq_type(AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING);
312 at32_spi_setup_slaves(0,spi01_board_info,ARRAY_SIZE(spi01_board_info));
313 spi_register_board_info(spi01_board_info,ARRAY_SIZE(spi01_board_info));
314 #endif
315
316 #ifdef CONFIG_BOARD_MRMT_UCB1400_TS
317 /* Select the Touchscreen interrupt pin mode */
318 at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
319 GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
320 platform_device_register(&rmt_ts_device);
321 #endif
322
323 at32_select_gpio( PIN_LCD_DISP, AT32_GPIOF_OUTPUT );
324 gpio_request( PIN_LCD_DISP, "LCD_DISP" );
325 gpio_direction_output( PIN_LCD_DISP, 0 ); /* LCD DISP */
326 #ifdef CONFIG_BOARD_MRMT_LCD_DISABLE
327 /* Keep Backlight and DISP off */
328 at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
329 gpio_request( PIN_LCD_BL, "LCD_BL" );
330 gpio_direction_output( PIN_LCD_BL, 0 ); /* Backlight */
331 #else
332 gpio_set_value( PIN_LCD_DISP, 1 ); /* DISP asserted first */
333 #ifdef CONFIG_BOARD_MRMT_BL_PWM
334 /* Use PWM for Backlight controls */
335 at32_add_device_pwm(1 << PWM_CH_BL);
336 pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
337 platform_device_register(&leds_pwm);
338 #else
339 /* Backlight always on */
340 udelay( 1 );
341 at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
342 gpio_request( PIN_LCD_BL, "LCD_BL" );
343 gpio_direction_output( PIN_LCD_BL, 1 );
344 #endif
345 #endif
346
347 /* Make sure BT and Zigbee modules in reset */
348 at32_select_gpio( PIN_BT_RST, AT32_GPIOF_OUTPUT );
349 gpio_request( PIN_BT_RST, "BT_RST" );
350 gpio_direction_output( PIN_BT_RST, 1 );
351 /* BT Module in Reset */
352
353 at32_select_gpio( PIN_ZB_RST_N, AT32_GPIOF_OUTPUT );
354 gpio_request( PIN_ZB_RST_N, "ZB_RST_N" );
355 gpio_direction_output( PIN_ZB_RST_N, 0 );
356 /* XBee Module in Reset */
357
358 #ifdef CONFIG_BOARD_MRMT_WIRELESS_ZB
359 udelay( 1000 );
360 /* Unreset the XBee Module */
361 gpio_set_value( PIN_ZB_RST_N, 1 );
362 #endif
363 #ifdef CONFIG_BOARD_MRMT_WIRELESS_BT
364 udelay( 1000 );
365 /* Unreset the BT Module */
366 gpio_set_value( PIN_BT_RST, 0 );
367 #endif
368
369 return 0;
370 }
371 arch_initcall(mrmt1_init);
372
mrmt1_early_init(void)373 static int __init mrmt1_early_init(void)
374 {
375 /* To maintain power-on signal in case boot loader did not already */
376 at32_select_gpio( PIN_PWR_ON, AT32_GPIOF_OUTPUT );
377 gpio_request( PIN_PWR_ON, "PIN_PWR_ON" );
378 gpio_direction_output( PIN_PWR_ON, 1 );
379
380 return 0;
381 }
382 core_initcall(mrmt1_early_init);
383