[ARM] 4611/2: AT91: Fix GPIO buttons pins on SAM9261-EK.
[linux-2.6.git] / arch / arm / mach-at91 / board-sam9261ek.c
1 /*
2  * linux/arch/arm/mach-at91/board-sam9261ek.c
3  *
4  *  Copyright (C) 2005 SAN People
5  *  Copyright (C) 2006 Atmel
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/dm9000.h>
30 #include <linux/fb.h>
31 #include <linux/gpio_keys.h>
32 #include <linux/input.h>
33
34 #include <video/atmel_lcdc.h>
35
36 #include <asm/hardware.h>
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 <asm/arch/board.h>
46 #include <asm/arch/gpio.h>
47 #include <asm/arch/at91sam926x_mc.h>
48
49 #include "generic.h"
50
51
52 /*
53  * Serial port configuration.
54  *    0 .. 2 = USART0 .. USART2
55  *    3      = DBGU
56  */
57 static struct at91_uart_config __initdata ek_uart_config = {
58         .console_tty    = 0,                            /* ttyS0 */
59         .nr_tty         = 1,
60         .tty_map        = { 3, -1, -1, -1 }             /* ttyS0, ..., ttyS3 */
61 };
62
63 static void __init ek_map_io(void)
64 {
65         /* Initialize processor: 18.432 MHz crystal */
66         at91sam9261_initialize(18432000);
67
68         /* Setup the LEDs */
69         at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
70
71         /* Setup the serial ports and console */
72         at91_init_serial(&ek_uart_config);
73 }
74
75 static void __init ek_init_irq(void)
76 {
77         at91sam9261_init_interrupts(NULL);
78 }
79
80
81 /*
82  * DM9000 ethernet device
83  */
84 #if defined(CONFIG_DM9000)
85 static struct resource at91sam9261_dm9000_resource[] = {
86         [0] = {
87                 .start  = AT91_CHIPSELECT_2,
88                 .end    = AT91_CHIPSELECT_2 + 3,
89                 .flags  = IORESOURCE_MEM
90         },
91         [1] = {
92                 .start  = AT91_CHIPSELECT_2 + 0x44,
93                 .end    = AT91_CHIPSELECT_2 + 0xFF,
94                 .flags  = IORESOURCE_MEM
95         },
96         [2] = {
97                 .start  = AT91_PIN_PC11,
98                 .end    = AT91_PIN_PC11,
99                 .flags  = IORESOURCE_IRQ
100         }
101 };
102
103 static struct dm9000_plat_data dm9000_platdata = {
104         .flags          = DM9000_PLATF_16BITONLY,
105 };
106
107 static struct platform_device at91sam9261_dm9000_device = {
108         .name           = "dm9000",
109         .id             = 0,
110         .num_resources  = ARRAY_SIZE(at91sam9261_dm9000_resource),
111         .resource       = at91sam9261_dm9000_resource,
112         .dev            = {
113                 .platform_data  = &dm9000_platdata,
114         }
115 };
116
117 static void __init ek_add_device_dm9000(void)
118 {
119         /*
120          * Configure Chip-Select 2 on SMC for the DM9000.
121          * Note: These timings were calculated for MASTER_CLOCK = 100000000
122          *  according to the DM9000 timings.
123          */
124         at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
125         at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
126         at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
127         at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
128
129         /* Configure Reset signal as output */
130         at91_set_gpio_output(AT91_PIN_PC10, 0);
131
132         /* Configure Interrupt pin as input, no pull-up */
133         at91_set_gpio_input(AT91_PIN_PC11, 0);
134
135         platform_device_register(&at91sam9261_dm9000_device);
136 }
137 #else
138 static void __init ek_add_device_dm9000(void) {}
139 #endif /* CONFIG_DM9000 */
140
141
142 /*
143  * USB Host Port
144  */
145 static struct at91_usbh_data __initdata ek_usbh_data = {
146         .ports          = 2,
147 };
148
149
150 /*
151  * USB Device Port
152  */
153 static struct at91_udc_data __initdata ek_udc_data = {
154         .vbus_pin       = AT91_PIN_PB29,
155         .pullup_pin     = 0,            /* pull-up driven by UDC */
156 };
157
158
159 /*
160  * MCI (SD/MMC)
161  */
162 static struct at91_mmc_data __initdata ek_mmc_data = {
163         .wire4          = 1,
164 //      .det_pin        = ... not connected
165 //      .wp_pin         = ... not connected
166 //      .vcc_pin        = ... not connected
167 };
168
169
170 /*
171  * NAND flash
172  */
173 static struct mtd_partition __initdata ek_nand_partition[] = {
174         {
175                 .name   = "Partition 1",
176                 .offset = 0,
177                 .size   = 256 * 1024,
178         },
179         {
180                 .name   = "Partition 2",
181                 .offset = 256 * 1024 ,
182                 .size   = MTDPART_SIZ_FULL,
183         },
184 };
185
186 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
187 {
188         *num_partitions = ARRAY_SIZE(ek_nand_partition);
189         return ek_nand_partition;
190 }
191
192 static struct at91_nand_data __initdata ek_nand_data = {
193         .ale            = 22,
194         .cle            = 21,
195 //      .det_pin        = ... not connected
196         .rdy_pin        = AT91_PIN_PC15,
197         .enable_pin     = AT91_PIN_PC14,
198         .partition_info = nand_partitions,
199 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
200         .bus_width_16   = 1,
201 #else
202         .bus_width_16   = 0,
203 #endif
204 };
205
206 /*
207  * ADS7846 Touchscreen
208  */
209 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
210
211 static int ads7843_pendown_state(void)
212 {
213         return !at91_get_gpio_value(AT91_PIN_PC2);      /* Touchscreen PENIRQ */
214 }
215
216 static struct ads7846_platform_data ads_info = {
217         .model                  = 7843,
218         .x_min                  = 150,
219         .x_max                  = 3830,
220         .y_min                  = 190,
221         .y_max                  = 3830,
222         .vref_delay_usecs       = 100,
223         .x_plate_ohms           = 450,
224         .y_plate_ohms           = 250,
225         .pressure_max           = 15000,
226         .debounce_max           = 1,
227         .debounce_rep           = 0,
228         .debounce_tol           = (~0),
229         .get_pendown_state      = ads7843_pendown_state,
230 };
231
232 static void __init ek_add_device_ts(void)
233 {
234         at91_set_B_periph(AT91_PIN_PC2, 1);     /* External IRQ0, with pullup */
235         at91_set_gpio_input(AT91_PIN_PA11, 1);  /* Touchscreen BUSY signal */
236 }
237 #else
238 static void __init ek_add_device_ts(void) {}
239 #endif
240
241 /*
242  * SPI devices
243  */
244 static struct spi_board_info ek_spi_devices[] = {
245         {       /* DataFlash chip */
246                 .modalias       = "mtd_dataflash",
247                 .chip_select    = 0,
248                 .max_speed_hz   = 15 * 1000 * 1000,
249                 .bus_num        = 0,
250         },
251 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
252         {
253                 .modalias       = "ads7846",
254                 .chip_select    = 2,
255                 .max_speed_hz   = 125000 * 26,  /* (max sample rate @ 3V) * (cmd + data + overhead) */
256                 .bus_num        = 0,
257                 .platform_data  = &ads_info,
258                 .irq            = AT91SAM9261_ID_IRQ0,
259         },
260 #endif
261 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
262         {       /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
263                 .modalias       = "mtd_dataflash",
264                 .chip_select    = 3,
265                 .max_speed_hz   = 15 * 1000 * 1000,
266                 .bus_num        = 0,
267         },
268 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
269         {       /* AT73C213 DAC */
270                 .modalias       = "at73c213",
271                 .chip_select    = 3,
272                 .max_speed_hz   = 10 * 1000 * 1000,
273                 .bus_num        = 0,
274         },
275 #endif
276 };
277
278
279 /*
280  * LCD Controller
281  */
282 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
283 static struct fb_videomode at91_tft_vga_modes[] = {
284         {
285                 .name           = "TX09D50VM1CCA @ 60",
286                 .refresh        = 60,
287                 .xres           = 240,          .yres           = 320,
288                 .pixclock       = KHZ2PICOS(4965),
289
290                 .left_margin    = 1,            .right_margin   = 33,
291                 .upper_margin   = 1,            .lower_margin   = 0,
292                 .hsync_len      = 5,            .vsync_len      = 1,
293
294                 .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
295                 .vmode          = FB_VMODE_NONINTERLACED,
296         },
297 };
298
299 static struct fb_monspecs at91fb_default_monspecs = {
300         .manufacturer   = "HIT",
301         .monitor        = "TX09D50VM1CCA",
302
303         .modedb         = at91_tft_vga_modes,
304         .modedb_len     = ARRAY_SIZE(at91_tft_vga_modes),
305         .hfmin          = 15000,
306         .hfmax          = 64000,
307         .vfmin          = 50,
308         .vfmax          = 150,
309 };
310
311 #define AT91SAM9261_DEFAULT_LCDCON2     (ATMEL_LCDC_MEMOR_LITTLE \
312                                         | ATMEL_LCDC_DISTYPE_TFT    \
313                                         | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
314
315 static void at91_lcdc_power_control(int on)
316 {
317         if (on)
318                 at91_set_gpio_value(AT91_PIN_PA12, 0);  /* power up */
319         else
320                 at91_set_gpio_value(AT91_PIN_PA12, 1);  /* power down */
321 }
322
323 /* Driver datas */
324 static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
325         .default_bpp                    = 16,
326         .default_dmacon                 = ATMEL_LCDC_DMAEN,
327         .default_lcdcon2                = AT91SAM9261_DEFAULT_LCDCON2,
328         .default_monspecs               = &at91fb_default_monspecs,
329         .atmel_lcdfb_power_control      = at91_lcdc_power_control,
330         .guard_time                     = 1,
331 };
332
333 #else
334 static struct atmel_lcdfb_info __initdata ek_lcdc_data;
335 #endif
336
337
338 /*
339  * GPIO Buttons
340  */
341 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
342 static struct gpio_keys_button ek_buttons[] = {
343         {
344                 .gpio           = AT91_PIN_PA27,
345                 .keycode        = BTN_0,
346                 .desc           = "Button 0",
347                 .active_low     = 1,
348         },
349         {
350                 .gpio           = AT91_PIN_PA26,
351                 .keycode        = BTN_1,
352                 .desc           = "Button 1",
353                 .active_low     = 1,
354         },
355         {
356                 .gpio           = AT91_PIN_PA25,
357                 .keycode        = BTN_2,
358                 .desc           = "Button 2",
359                 .active_low     = 1,
360         },
361         {
362                 .gpio           = AT91_PIN_PA24,
363                 .keycode        = BTN_3,
364                 .desc           = "Button 3",
365                 .active_low     = 1,
366         }
367 };
368
369 static struct gpio_keys_platform_data ek_button_data = {
370         .buttons        = ek_buttons,
371         .nbuttons       = ARRAY_SIZE(ek_buttons),
372 };
373
374 static struct platform_device ek_button_device = {
375         .name           = "gpio-keys",
376         .id             = -1,
377         .num_resources  = 0,
378         .dev            = {
379                 .platform_data  = &ek_button_data,
380         }
381 };
382
383 static void __init ek_add_device_buttons(void)
384 {
385         at91_set_gpio_input(AT91_PIN_PA27, 0);  /* btn0 */
386         at91_set_deglitch(AT91_PIN_PA27, 1);
387         at91_set_gpio_input(AT91_PIN_PA26, 0);  /* btn1 */
388         at91_set_deglitch(AT91_PIN_PA26, 1);
389         at91_set_gpio_input(AT91_PIN_PA25, 0);  /* btn2 */
390         at91_set_deglitch(AT91_PIN_PA25, 1);
391         at91_set_gpio_input(AT91_PIN_PA24, 0);  /* btn3 */
392         at91_set_deglitch(AT91_PIN_PA24, 1);
393
394         platform_device_register(&ek_button_device);
395 }
396 #else
397 static void __init ek_add_device_buttons(void) {}
398 #endif
399
400 static void __init ek_board_init(void)
401 {
402         /* Serial */
403         at91_add_device_serial();
404         /* USB Host */
405         at91_add_device_usbh(&ek_usbh_data);
406         /* USB Device */
407         at91_add_device_udc(&ek_udc_data);
408         /* I2C */
409         at91_add_device_i2c(NULL, 0);
410         /* NAND */
411         at91_add_device_nand(&ek_nand_data);
412         /* DM9000 ethernet */
413         ek_add_device_dm9000();
414
415         /* spi0 and mmc/sd share the same PIO pins */
416 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
417         /* SPI */
418         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
419         /* Touchscreen */
420         ek_add_device_ts();
421 #else
422         /* MMC */
423         at91_add_device_mmc(0, &ek_mmc_data);
424 #endif
425         /* LCD Controller */
426         at91_add_device_lcdc(&ek_lcdc_data);
427         /* Push Buttons */
428         ek_add_device_buttons();
429 }
430
431 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
432         /* Maintainer: Atmel */
433         .phys_io        = AT91_BASE_SYS,
434         .io_pg_offst    = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
435         .boot_params    = AT91_SDRAM_BASE + 0x100,
436         .timer          = &at91sam926x_timer,
437         .map_io         = ek_map_io,
438         .init_irq       = ek_init_irq,
439         .init_machine   = ek_board_init,
440 MACHINE_END