summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-at91/board-cap9adk.c
blob: 1854371315411bef6dbbaac7d6b86a2e18c1cdd7 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
/*
 * linux/arch/arm/mach-at91/board-cap9adk.c
 *
 *  Copyright (C) 2007 Stelian Pop <stelian.pop@leadtechdesign.com>
 *  Copyright (C) 2007 Lead Tech Design <www.leadtechdesign.com>
 *  Copyright (C) 2005 SAN People
 *  Copyright (C) 2007 Atmel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <linux/types.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <linux/fb.h>
#include <linux/mtd/physmap.h>

#include <video/atmel_lcdc.h>

#include <asm/hardware.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/irq.h>

#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>

#include <asm/arch/board.h>
#include <asm/arch/gpio.h>
#include <asm/arch/at91cap9_matrix.h>
#include <asm/arch/at91sam926x_mc.h>

#include "generic.h"


static void __init cap9adk_map_io(void)
{
	/* Initialize processor: 12 MHz crystal */
	at91cap9_initialize(12000000);

	/* Setup the LEDs: USER1 and USER2 LED for cpu/timer... */
	at91_init_leds(AT91_PIN_PA10, AT91_PIN_PA11);
	/* ... POWER LED always on */
	at91_set_gpio_output(AT91_PIN_PC29, 1);

	/* Setup the serial ports and console */
	at91_register_uart(0, 0, 0);		/* DBGU = ttyS0 */
	at91_set_serial_console(0);
}

static void __init cap9adk_init_irq(void)
{
	at91cap9_init_interrupts(NULL);
}


/*
 * USB Host port
 */
static struct at91_usbh_data __initdata cap9adk_usbh_data = {
	.ports		= 2,
};


/*
 * ADS7846 Touchscreen
 */
#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
static int ads7843_pendown_state(void)
{
	return !at91_get_gpio_value(AT91_PIN_PC4);	/* Touchscreen PENIRQ */
}

static struct ads7846_platform_data ads_info = {
	.model			= 7843,
	.x_min			= 150,
	.x_max			= 3830,
	.y_min			= 190,
	.y_max			= 3830,
	.vref_delay_usecs	= 100,
	.x_plate_ohms		= 450,
	.y_plate_ohms		= 250,
	.pressure_max		= 15000,
	.debounce_max		= 1,
	.debounce_rep		= 0,
	.debounce_tol		= (~0),
	.get_pendown_state	= ads7843_pendown_state,
};

static void __init cap9adk_add_device_ts(void)
{
	at91_set_gpio_input(AT91_PIN_PC4, 1);	/* Touchscreen PENIRQ */
	at91_set_gpio_input(AT91_PIN_PC5, 1);	/* Touchscreen BUSY */
}
#else
static void __init cap9adk_add_device_ts(void) {}
#endif


/*
 * SPI devices.
 */
static struct spi_board_info cap9adk_spi_devices[] = {
#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
	{	/* DataFlash card */
		.modalias	= "mtd_dataflash",
		.chip_select	= 0,
		.max_speed_hz	= 15 * 1000 * 1000,
		.bus_num	= 0,
	},
#endif
#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
	{
		.modalias	= "ads7846",
		.chip_select	= 3,		/* can be 2 or 3, depending on J2 jumper */
		.max_speed_hz	= 125000 * 26,	/* (max sample rate @ 3V) * (cmd + data + overhead) */
		.bus_num	= 0,
		.platform_data	= &ads_info,
		.irq		= AT91_PIN_PC4,
	},
#endif
};


/*
 * MCI (SD/MMC)
 */
static struct at91_mmc_data __initdata cap9adk_mmc_data = {
	.wire4		= 1,
//	.det_pin	= ... not connected
//	.wp_pin		= ... not connected
//	.vcc_pin	= ... not connected
};


/*
 * MACB Ethernet device
 */
static struct at91_eth_data __initdata cap9adk_macb_data = {
	.is_rmii	= 1,
};


/*
 * NAND flash
 */
static struct mtd_partition __initdata cap9adk_nand_partitions[] = {
	{
		.name	= "NAND partition",
		.offset	= 0,
		.size	= MTDPART_SIZ_FULL,
	},
};

static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
{
	*num_partitions = ARRAY_SIZE(cap9adk_nand_partitions);
	return cap9adk_nand_partitions;
}

static struct at91_nand_data __initdata cap9adk_nand_data = {
	.ale		= 21,
	.cle		= 22,
//	.det_pin	= ... not connected
//	.rdy_pin	= ... not connected
	.enable_pin	= AT91_PIN_PD15,
	.partition_info	= nand_partitions,
#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
	.bus_width_16	= 1,
#else
	.bus_width_16	= 0,
#endif
};


/*
 * NOR flash
 */
static struct mtd_partition cap9adk_nor_partitions[] = {
	{
		.name		= "NOR partition",
		.offset		= 0,
		.size		= MTDPART_SIZ_FULL,
	},
};

static struct physmap_flash_data cap9adk_nor_data = {
	.width		= 2,
	.parts		= cap9adk_nor_partitions,
	.nr_parts	= ARRAY_SIZE(cap9adk_nor_partitions),
};

#define NOR_BASE	AT91_CHIPSELECT_0
#define NOR_SIZE	0x800000

static struct resource nor_flash_resources[] = {
	{
		.start	= NOR_BASE,
		.end	= NOR_BASE + NOR_SIZE - 1,
		.flags	= IORESOURCE_MEM,
	}
};

static struct platform_device cap9adk_nor_flash = {
	.name		= "physmap-flash",
	.id		= 0,
	.dev		= {
				.platform_data	= &cap9adk_nor_data,
	},
	.resource	= nor_flash_resources,
	.num_resources	= ARRAY_SIZE(nor_flash_resources),
};

static __init void cap9adk_add_device_nor(void)
{
	unsigned long csa;

	csa = at91_sys_read(AT91_MATRIX_EBICSA);
	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);

	/* set the bus interface characteristics */
	at91_sys_write(AT91_SMC_SETUP(0), AT91_SMC_NWESETUP_(4) | AT91_SMC_NCS_WRSETUP_(2)
			| AT91_SMC_NRDSETUP_(4) | AT91_SMC_NCS_RDSETUP_(2));

	at91_sys_write(AT91_SMC_PULSE(0), AT91_SMC_NWEPULSE_(8) | AT91_SMC_NCS_WRPULSE_(10)
			| AT91_SMC_NRDPULSE_(8) | AT91_SMC_NCS_RDPULSE_(10));

	at91_sys_write(AT91_SMC_CYCLE(0), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));

	at91_sys_write(AT91_SMC_MODE(0), AT91_SMC_READMODE | AT91_SMC_WRITEMODE
			| AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE
			| AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));

	platform_device_register(&cap9adk_nor_flash);
}


/*
 * LCD Controller
 */
#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
static struct fb_videomode at91_tft_vga_modes[] = {
	{
	        .name           = "TX09D50VM1CCA @ 60",
		.refresh	= 60,
		.xres		= 240,		.yres		= 320,
		.pixclock	= KHZ2PICOS(4965),

		.left_margin	= 1,		.right_margin	= 33,
		.upper_margin	= 1,		.lower_margin	= 0,
		.hsync_len	= 5,		.vsync_len	= 1,

		.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
		.vmode		= FB_VMODE_NONINTERLACED,
	},
};

static struct fb_monspecs at91fb_default_monspecs = {
	.manufacturer	= "HIT",
	.monitor        = "TX09D70VM1CCA",

	.modedb		= at91_tft_vga_modes,
	.modedb_len	= ARRAY_SIZE(at91_tft_vga_modes),
	.hfmin		= 15000,
	.hfmax		= 64000,
	.vfmin		= 50,
	.vfmax		= 150,
};

#define AT91CAP9_DEFAULT_LCDCON2 	(ATMEL_LCDC_MEMOR_LITTLE \
					| ATMEL_LCDC_DISTYPE_TFT    \
					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)

static void at91_lcdc_power_control(int on)
{
	if (on)
		at91_set_gpio_value(AT91_PIN_PC0, 0);	/* power up */
	else
		at91_set_gpio_value(AT91_PIN_PC0, 1);	/* power down */
}

/* Driver datas */
static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data = {
	.default_bpp			= 16,
	.default_dmacon			= ATMEL_LCDC_DMAEN,
	.default_lcdcon2		= AT91CAP9_DEFAULT_LCDCON2,
	.default_monspecs		= &at91fb_default_monspecs,
	.atmel_lcdfb_power_control	= at91_lcdc_power_control,
	.guard_time			= 1,
};

#else
static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
#endif


/*
 * AC97
 */
static struct atmel_ac97_data cap9adk_ac97_data = {
//	.reset_pin	= ... not connected
};


static void __init cap9adk_board_init(void)
{
	/* Serial */
	at91_add_device_serial();
	/* USB Host */
	set_irq_type(AT91CAP9_ID_UHP, IRQT_HIGH);
	at91_add_device_usbh(&cap9adk_usbh_data);
	/* SPI */
	at91_add_device_spi(cap9adk_spi_devices, ARRAY_SIZE(cap9adk_spi_devices));
	/* Touchscreen */
	cap9adk_add_device_ts();
	/* MMC */
	at91_add_device_mmc(1, &cap9adk_mmc_data);
	/* Ethernet */
	at91_add_device_eth(&cap9adk_macb_data);
	/* NAND */
	at91_add_device_nand(&cap9adk_nand_data);
	/* NOR Flash */
	cap9adk_add_device_nor();
	/* I2C */
	at91_add_device_i2c(NULL, 0);
	/* LCD Controller */
	set_irq_type(AT91CAP9_ID_LCDC, IRQT_HIGH);
	at91_add_device_lcdc(&cap9adk_lcdc_data);
	/* AC97 */
	at91_add_device_ac97(&cap9adk_ac97_data);
}

MACHINE_START(AT91CAP9ADK, "Atmel AT91CAP9A-DK")
	/* Maintainer: Stelian Pop <stelian.pop@leadtechdesign.com> */
	.phys_io	= AT91_BASE_SYS,
	.io_pg_offst	= (AT91_VA_BASE_SYS >> 18) & 0xfffc,
	.boot_params	= AT91_SDRAM_BASE + 0x100,
	.timer		= &at91sam926x_timer,
	.map_io		= cap9adk_map_io,
	.init_irq	= cap9adk_init_irq,
	.init_machine	= cap9adk_board_init,
MACHINE_END
OpenPOWER on IntegriCloud