1 /*
2 * linux/arch/arm/mach-at91/board-sam9263ek.c
3 *
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2007 Atmel Corporation.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 #include <linux/types.h>
23 #include <linux/init.h>
24 #include <linux/mm.h>
25 #include <linux/module.h>
26 #include <linux/platform_device.h>
27 #include <linux/spi/spi.h>
28 #include <linux/spi/ads7846.h>
29 #include <linux/i2c/at24.h>
30 #include <linux/fb.h>
31 #include <linux/gpio_keys.h>
32 #include <linux/input.h>
33 #include <linux/leds.h>
34
35 #include <video/atmel_lcdc.h>
36
37 #include <asm/setup.h>
38 #include <asm/mach-types.h>
39 #include <asm/irq.h>
40
41 #include <asm/mach/arch.h>
42 #include <asm/mach/map.h>
43 #include <asm/mach/irq.h>
44
45 #include <mach/hardware.h>
46 #include <mach/board.h>
47 #include <mach/gpio.h>
48 #include <mach/at91sam9_smc.h>
49 #include <mach/at91_shdwc.h>
50
51 #include "sam9_smc.h"
52 #include "generic.h"
53
54
ek_map_io(void)55 static void __init ek_map_io(void)
56 {
57 /* Initialize processor: 16.367 MHz crystal */
58 at91sam9263_initialize(16367660);
59
60 /* DGBU on ttyS0. (Rx & Tx only) */
61 at91_register_uart(0, 0, 0);
62
63 /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
64 at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
65
66 /* set serial console to ttyS0 (ie, DBGU) */
67 at91_set_serial_console(0);
68 }
69
ek_init_irq(void)70 static void __init ek_init_irq(void)
71 {
72 at91sam9263_init_interrupts(NULL);
73 }
74
75
76 /*
77 * USB Host port
78 */
79 static struct at91_usbh_data __initdata ek_usbh_data = {
80 .ports = 2,
81 .vbus_pin = { AT91_PIN_PA24, AT91_PIN_PA21 },
82 };
83
84 /*
85 * USB Device port
86 */
87 static struct at91_udc_data __initdata ek_udc_data = {
88 .vbus_pin = AT91_PIN_PA25,
89 .pullup_pin = 0, /* pull-up driven by UDC */
90 };
91
92
93 /*
94 * ADS7846 Touchscreen
95 */
96 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
ads7843_pendown_state(void)97 static int ads7843_pendown_state(void)
98 {
99 return !at91_get_gpio_value(AT91_PIN_PA15); /* Touchscreen PENIRQ */
100 }
101
102 static struct ads7846_platform_data ads_info = {
103 .model = 7843,
104 .x_min = 150,
105 .x_max = 3830,
106 .y_min = 190,
107 .y_max = 3830,
108 .vref_delay_usecs = 100,
109 .x_plate_ohms = 450,
110 .y_plate_ohms = 250,
111 .pressure_max = 15000,
112 .debounce_max = 1,
113 .debounce_rep = 0,
114 .debounce_tol = (~0),
115 .get_pendown_state = ads7843_pendown_state,
116 };
117
ek_add_device_ts(void)118 static void __init ek_add_device_ts(void)
119 {
120 at91_set_B_periph(AT91_PIN_PA15, 1); /* External IRQ1, with pullup */
121 at91_set_gpio_input(AT91_PIN_PA31, 1); /* Touchscreen BUSY signal */
122 }
123 #else
ek_add_device_ts(void)124 static void __init ek_add_device_ts(void) {}
125 #endif
126
127 /*
128 * SPI devices.
129 */
130 static struct spi_board_info ek_spi_devices[] = {
131 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
132 { /* DataFlash card */
133 .modalias = "mtd_dataflash",
134 .chip_select = 0,
135 .max_speed_hz = 15 * 1000 * 1000,
136 .bus_num = 0,
137 },
138 #endif
139 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
140 {
141 .modalias = "ads7846",
142 .chip_select = 3,
143 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
144 .bus_num = 0,
145 .platform_data = &ads_info,
146 .irq = AT91SAM9263_ID_IRQ1,
147 },
148 #endif
149 };
150
151
152 /*
153 * MCI (SD/MMC)
154 */
155 static struct at91_mmc_data __initdata ek_mmc_data = {
156 .wire4 = 1,
157 .det_pin = AT91_PIN_PE18,
158 .wp_pin = AT91_PIN_PE19,
159 // .vcc_pin = ... not connected
160 };
161
162
163 /*
164 * MACB Ethernet device
165 */
166 static struct at91_eth_data __initdata ek_macb_data = {
167 .phy_irq_pin = AT91_PIN_PE31,
168 .is_rmii = 1,
169 };
170
171
172 /*
173 * NAND flash
174 */
175 static struct mtd_partition __initdata ek_nand_partition[] = {
176 {
177 .name = "Partition 1",
178 .offset = 0,
179 .size = SZ_64M,
180 },
181 {
182 .name = "Partition 2",
183 .offset = MTDPART_OFS_NXTBLK,
184 .size = MTDPART_SIZ_FULL,
185 },
186 };
187
nand_partitions(int size,int * num_partitions)188 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
189 {
190 *num_partitions = ARRAY_SIZE(ek_nand_partition);
191 return ek_nand_partition;
192 }
193
194 static struct atmel_nand_data __initdata ek_nand_data = {
195 .ale = 21,
196 .cle = 22,
197 // .det_pin = ... not connected
198 .rdy_pin = AT91_PIN_PA22,
199 .enable_pin = AT91_PIN_PD15,
200 .partition_info = nand_partitions,
201 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
202 .bus_width_16 = 1,
203 #else
204 .bus_width_16 = 0,
205 #endif
206 };
207
208 static struct sam9_smc_config __initdata ek_nand_smc_config = {
209 .ncs_read_setup = 0,
210 .nrd_setup = 1,
211 .ncs_write_setup = 0,
212 .nwe_setup = 1,
213
214 .ncs_read_pulse = 3,
215 .nrd_pulse = 3,
216 .ncs_write_pulse = 3,
217 .nwe_pulse = 3,
218
219 .read_cycle = 5,
220 .write_cycle = 5,
221
222 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
223 .tdf_cycles = 2,
224 };
225
ek_add_device_nand(void)226 static void __init ek_add_device_nand(void)
227 {
228 /* setup bus-width (8 or 16) */
229 if (ek_nand_data.bus_width_16)
230 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
231 else
232 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
233
234 /* configure chip-select 3 (NAND) */
235 sam9_smc_configure(3, &ek_nand_smc_config);
236
237 at91_add_device_nand(&ek_nand_data);
238 }
239
240
241 /*
242 * I2C devices
243 */
244 static struct at24_platform_data at24c512 = {
245 .byte_len = SZ_512K / 8,
246 .page_size = 128,
247 .flags = AT24_FLAG_ADDR16,
248 };
249
250
251 static struct i2c_board_info __initdata ek_i2c_devices[] = {
252 {
253 I2C_BOARD_INFO("24c512", 0x50),
254 .platform_data = &at24c512,
255 },
256 /* more devices can be added using expansion connectors */
257 };
258
259 /*
260 * LCD Controller
261 */
262 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
263 static struct fb_videomode at91_tft_vga_modes[] = {
264 {
265 .name = "TX09D50VM1CCA @ 60",
266 .refresh = 60,
267 .xres = 240, .yres = 320,
268 .pixclock = KHZ2PICOS(4965),
269
270 .left_margin = 1, .right_margin = 33,
271 .upper_margin = 1, .lower_margin = 0,
272 .hsync_len = 5, .vsync_len = 1,
273
274 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
275 .vmode = FB_VMODE_NONINTERLACED,
276 },
277 };
278
279 static struct fb_monspecs at91fb_default_monspecs = {
280 .manufacturer = "HIT",
281 .monitor = "TX09D70VM1CCA",
282
283 .modedb = at91_tft_vga_modes,
284 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
285 .hfmin = 15000,
286 .hfmax = 64000,
287 .vfmin = 50,
288 .vfmax = 150,
289 };
290
291 #define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
292 | ATMEL_LCDC_DISTYPE_TFT \
293 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
294
at91_lcdc_power_control(int on)295 static void at91_lcdc_power_control(int on)
296 {
297 at91_set_gpio_value(AT91_PIN_PA30, on);
298 }
299
300 /* Driver datas */
301 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
302 .lcdcon_is_backlight = true,
303 .default_bpp = 16,
304 .default_dmacon = ATMEL_LCDC_DMAEN,
305 .default_lcdcon2 = AT91SAM9263_DEFAULT_LCDCON2,
306 .default_monspecs = &at91fb_default_monspecs,
307 .atmel_lcdfb_power_control = at91_lcdc_power_control,
308 .guard_time = 1,
309 };
310
311 #else
312 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
313 #endif
314
315
316 /*
317 * GPIO Buttons
318 */
319 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
320 static struct gpio_keys_button ek_buttons[] = {
321 { /* BP1, "leftclic" */
322 .code = BTN_LEFT,
323 .gpio = AT91_PIN_PC5,
324 .active_low = 1,
325 .desc = "left_click",
326 .wakeup = 1,
327 },
328 { /* BP2, "rightclic" */
329 .code = BTN_RIGHT,
330 .gpio = AT91_PIN_PC4,
331 .active_low = 1,
332 .desc = "right_click",
333 .wakeup = 1,
334 }
335 };
336
337 static struct gpio_keys_platform_data ek_button_data = {
338 .buttons = ek_buttons,
339 .nbuttons = ARRAY_SIZE(ek_buttons),
340 };
341
342 static struct platform_device ek_button_device = {
343 .name = "gpio-keys",
344 .id = -1,
345 .num_resources = 0,
346 .dev = {
347 .platform_data = &ek_button_data,
348 }
349 };
350
ek_add_device_buttons(void)351 static void __init ek_add_device_buttons(void)
352 {
353 at91_set_GPIO_periph(AT91_PIN_PC5, 1); /* left button */
354 at91_set_deglitch(AT91_PIN_PC5, 1);
355 at91_set_GPIO_periph(AT91_PIN_PC4, 1); /* right button */
356 at91_set_deglitch(AT91_PIN_PC4, 1);
357
358 platform_device_register(&ek_button_device);
359 }
360 #else
ek_add_device_buttons(void)361 static void __init ek_add_device_buttons(void) {}
362 #endif
363
364
365 /*
366 * AC97
367 */
368 static struct atmel_ac97_data ek_ac97_data = {
369 .reset_pin = AT91_PIN_PA13,
370 };
371
372
373 /*
374 * LEDs ... these could all be PWM-driven, for variable brightness
375 */
376 static struct gpio_led ek_leds[] = {
377 { /* "right" led, green, userled2 (could be driven by pwm2) */
378 .name = "ds2",
379 .gpio = AT91_PIN_PC29,
380 .active_low = 1,
381 .default_trigger = "nand-disk",
382 },
383 { /* "power" led, yellow (could be driven by pwm0) */
384 .name = "ds3",
385 .gpio = AT91_PIN_PB7,
386 .default_trigger = "heartbeat",
387 }
388 };
389
390 /*
391 * PWM Leds
392 */
393 static struct gpio_led ek_pwm_led[] = {
394 /* For now only DS1 is PWM-driven (by pwm1) */
395 {
396 .name = "ds1",
397 .gpio = 1, /* is PWM channel number */
398 .active_low = 1,
399 .default_trigger = "none",
400 }
401 };
402
403
ek_board_init(void)404 static void __init ek_board_init(void)
405 {
406 /* Serial */
407 at91_add_device_serial();
408 /* USB Host */
409 at91_add_device_usbh(&ek_usbh_data);
410 /* USB Device */
411 at91_add_device_udc(&ek_udc_data);
412 /* SPI */
413 at91_set_gpio_output(AT91_PIN_PE20, 1); /* select spi0 clock */
414 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
415 /* Touchscreen */
416 ek_add_device_ts();
417 /* MMC */
418 at91_add_device_mmc(1, &ek_mmc_data);
419 /* Ethernet */
420 at91_add_device_eth(&ek_macb_data);
421 /* NAND */
422 ek_add_device_nand();
423 /* I2C */
424 at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
425 /* LCD Controller */
426 at91_add_device_lcdc(&ek_lcdc_data);
427 /* Push Buttons */
428 ek_add_device_buttons();
429 /* AC97 */
430 at91_add_device_ac97(&ek_ac97_data);
431 /* LEDs */
432 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
433 at91_pwm_leds(ek_pwm_led, ARRAY_SIZE(ek_pwm_led));
434 }
435
436 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
437 /* Maintainer: Atmel */
438 .phys_io = AT91_BASE_SYS,
439 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
440 .boot_params = AT91_SDRAM_BASE + 0x100,
441 .timer = &at91sam926x_timer,
442 .map_io = ek_map_io,
443 .init_irq = ek_init_irq,
444 .init_machine = ek_board_init,
445 MACHINE_END
446