summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-at91/board-sam9260ek.c
blob: 65dea12d685ef98ef32e04aade12bf1f2be0d9b5 (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
/*
 * linux/arch/arm/mach-at91/board-sam9260ek.c
 *
 *  Copyright (C) 2005 SAN People
 *  Copyright (C) 2006 Atmel
 *
 * 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/gpio.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/at73c213.h>
#include <linux/clk.h>
#include <linux/platform_data/at24.h>
#include <linux/gpio_keys.h>
#include <linux/input.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 <mach/hardware.h>
#include <mach/at91sam9_smc.h>
#include <mach/system_rev.h>

#include "at91_aic.h"
#include "at91_shdwc.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
#include "gpio.h"


static void __init ek_init_early(void)
{
	/* Initialize processor: 18.432 MHz crystal */
	at91_initialize(18432000);
}

/*
 * USB Host port
 */
static struct at91_usbh_data __initdata ek_usbh_data = {
	.ports		= 2,
	.vbus_pin	= {-EINVAL, -EINVAL},
	.overcurrent_pin= {-EINVAL, -EINVAL},
};

/*
 * USB Device port
 */
static struct at91_udc_data __initdata ek_udc_data = {
	.vbus_pin	= AT91_PIN_PC5,
	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
};


/*
 * Audio
 */
static struct at73c213_board_info at73c213_data = {
	.ssc_id		= 0,
	.shortname	= "AT91SAM9260-EK external DAC",
};

#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
static void __init at73c213_set_clk(struct at73c213_board_info *info)
{
	struct clk *pck0;
	struct clk *plla;

	pck0 = clk_get(NULL, "pck0");
	plla = clk_get(NULL, "plla");

	/* AT73C213 MCK Clock */
	at91_set_B_periph(AT91_PIN_PC1, 0);	/* PCK0 */

	clk_set_parent(pck0, plla);
	clk_put(plla);

	info->dac_clk = pck0;
}
#else
static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
#endif

/*
 * SPI devices.
 */
static struct spi_board_info ek_spi_devices[] = {
#if !IS_ENABLED(CONFIG_MMC_ATMELMCI)
	{	/* DataFlash chip */
		.modalias	= "mtd_dataflash",
		.chip_select	= 1,
		.max_speed_hz	= 15 * 1000 * 1000,
		.bus_num	= 0,
	},
#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
#endif
#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
	{	/* AT73C213 DAC */
		.modalias	= "at73c213",
		.chip_select	= 0,
		.max_speed_hz	= 10 * 1000 * 1000,
		.bus_num	= 1,
		.mode		= SPI_MODE_1,
		.platform_data	= &at73c213_data,
	},
#endif
};


/*
 * MACB Ethernet device
 */
static struct macb_platform_data __initdata ek_macb_data = {
	.phy_irq_pin	= AT91_PIN_PA7,
	.is_rmii	= 1,
};


/*
 * NAND flash
 */
static struct mtd_partition __initdata ek_nand_partition[] = {
	{
		.name	= "Partition 1",
		.offset	= 0,
		.size	= SZ_256K,
	},
	{
		.name	= "Partition 2",
		.offset	= MTDPART_OFS_NXTBLK,
		.size	= MTDPART_SIZ_FULL,
	},
};

static struct atmel_nand_data __initdata ek_nand_data = {
	.ale		= 21,
	.cle		= 22,
	.det_pin	= -EINVAL,
	.rdy_pin	= AT91_PIN_PC13,
	.enable_pin	= AT91_PIN_PC14,
	.ecc_mode	= NAND_ECC_SOFT,
	.on_flash_bbt	= 1,
	.parts		= ek_nand_partition,
	.num_parts	= ARRAY_SIZE(ek_nand_partition),
};

static struct sam9_smc_config __initdata ek_nand_smc_config = {
	.ncs_read_setup		= 0,
	.nrd_setup		= 1,
	.ncs_write_setup	= 0,
	.nwe_setup		= 1,

	.ncs_read_pulse		= 3,
	.nrd_pulse		= 3,
	.ncs_write_pulse	= 3,
	.nwe_pulse		= 3,

	.read_cycle		= 5,
	.write_cycle		= 5,

	.mode			= AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
	.tdf_cycles		= 2,
};

static void __init ek_add_device_nand(void)
{
	ek_nand_data.bus_width_16 = board_have_nand_16bit();
	/* setup bus-width (8 or 16) */
	if (ek_nand_data.bus_width_16)
		ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
	else
		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;

	/* configure chip-select 3 (NAND) */
	sam9_smc_configure(0, 3, &ek_nand_smc_config);

	at91_add_device_nand(&ek_nand_data);
}


/*
 * MCI (SD/MMC)
 */
static struct mci_platform_data __initdata ek_mci0_data = {
	.slot[1] = {
		.bus_width	= 4,
		.detect_pin	= -EINVAL,
		.wp_pin		= -EINVAL,
	},
};


/*
 * LEDs
 */
static struct gpio_led ek_leds[] = {
	{	/* "bottom" led, green, userled1 to be defined */
		.name			= "ds5",
		.gpio			= AT91_PIN_PA6,
		.active_low		= 1,
		.default_trigger	= "none",
	},
	{	/* "power" led, yellow */
		.name			= "ds1",
		.gpio			= AT91_PIN_PA9,
		.default_trigger	= "heartbeat",
	}
};

/*
 * I2C devices
 */
static struct at24_platform_data at24c512 = {
	.byte_len	= SZ_512K / 8,
	.page_size	= 128,
	.flags		= AT24_FLAG_ADDR16,
};

static struct i2c_board_info __initdata ek_i2c_devices[] = {
	{
		I2C_BOARD_INFO("24c512", 0x50),
		.platform_data = &at24c512,
	},
	/* more devices can be added using expansion connectors */
};


/*
 * GPIO Buttons
 */
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button ek_buttons[] = {
	{
		.gpio		= AT91_PIN_PA30,
		.code		= BTN_3,
		.desc		= "Button 3",
		.active_low	= 1,
		.wakeup		= 1,
	},
	{
		.gpio		= AT91_PIN_PA31,
		.code		= BTN_4,
		.desc		= "Button 4",
		.active_low	= 1,
		.wakeup		= 1,
	}
};

static struct gpio_keys_platform_data ek_button_data = {
	.buttons	= ek_buttons,
	.nbuttons	= ARRAY_SIZE(ek_buttons),
};

static struct platform_device ek_button_device = {
	.name		= "gpio-keys",
	.id		= -1,
	.num_resources	= 0,
	.dev		= {
		.platform_data	= &ek_button_data,
	}
};

static void __init ek_add_device_buttons(void)
{
	at91_set_gpio_input(AT91_PIN_PA30, 1);	/* btn3 */
	at91_set_deglitch(AT91_PIN_PA30, 1);
	at91_set_gpio_input(AT91_PIN_PA31, 1);	/* btn4 */
	at91_set_deglitch(AT91_PIN_PA31, 1);

	platform_device_register(&ek_button_device);
}
#else
static void __init ek_add_device_buttons(void) {}
#endif


static void __init ek_board_init(void)
{
	/* Serial */
	/* DBGU on ttyS0. (Rx & Tx only) */
	at91_register_uart(0, 0, 0);

	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
	at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
			   | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
			   | ATMEL_UART_RI);

	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
	at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
	at91_add_device_serial();
	/* USB Host */
	at91_add_device_usbh(&ek_usbh_data);
	/* USB Device */
	at91_add_device_udc(&ek_udc_data);
	/* SPI */
	at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
	/* NAND */
	ek_add_device_nand();
	/* Ethernet */
	at91_add_device_eth(&ek_macb_data);
	/* MMC */
	at91_add_device_mci(0, &ek_mci0_data);
	/* I2C */
	at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
	/* SSC (to AT73C213) */
	at73c213_set_clk(&at73c213_data);
	at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
	/* LEDs */
	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
	/* Push Buttons */
	ek_add_device_buttons();
}

MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
	/* Maintainer: Atmel */
	.init_time	= at91sam926x_pit_init,
	.map_io		= at91_map_io,
	.handle_irq	= at91_aic_handle_irq,
	.init_early	= ek_init_early,
	.init_irq	= at91_init_irq_default,
	.init_machine	= ek_board_init,
MACHINE_END