summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-mx3/mach-mx31ads.c
blob: 96cedc4a47f5d6bc333001565de8dac569f9b301 (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
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
/*
 *  Copyright (C) 2000 Deep Blue Solutions Ltd
 *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
 *  Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
 *
 * 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.
 */

#include <linux/types.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/serial_8250.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/irq.h>

#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/memory.h>
#include <asm/mach/map.h>
#include <mach/common.h>
#include <mach/iomux-mx3.h>

#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
#include <linux/mfd/wm8350/audio.h>
#include <linux/mfd/wm8350/core.h>
#include <linux/mfd/wm8350/pmic.h>
#endif

#include "devices-imx31.h"
#include "devices.h"

/* Base address of PBC controller */
#define PBC_BASE_ADDRESS        MX31_CS4_BASE_ADDR_VIRT
/* Offsets for the PBC Controller register */

/* PBC Board interrupt status register */
#define PBC_INTSTATUS           0x000016

/* PBC Board interrupt current status register */
#define PBC_INTCURR_STATUS      0x000018

/* PBC Interrupt mask register set address */
#define PBC_INTMASK_SET         0x00001A

/* PBC Interrupt mask register clear address */
#define PBC_INTMASK_CLEAR       0x00001C

/* External UART A */
#define PBC_SC16C652_UARTA      0x010000

/* External UART B */
#define PBC_SC16C652_UARTB      0x010010

#define PBC_INTSTATUS_REG	(PBC_INTSTATUS + PBC_BASE_ADDRESS)
#define PBC_INTMASK_SET_REG	(PBC_INTMASK_SET + PBC_BASE_ADDRESS)
#define PBC_INTMASK_CLEAR_REG	(PBC_INTMASK_CLEAR + PBC_BASE_ADDRESS)
#define EXPIO_PARENT_INT	IOMUX_TO_IRQ(MX31_PIN_GPIO1_4)

#define MXC_EXP_IO_BASE		(MXC_BOARD_IRQ_START)
#define MXC_IRQ_TO_EXPIO(irq)	((irq) - MXC_EXP_IO_BASE)

#define EXPIO_INT_XUART_INTA	(MXC_EXP_IO_BASE + 10)
#define EXPIO_INT_XUART_INTB	(MXC_EXP_IO_BASE + 11)

#define MXC_MAX_EXP_IO_LINES	16
/*
 * This file contains the board-specific initialization routines.
 */

#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
/*!
 * The serial port definition structure.
 */
static struct plat_serial8250_port serial_platform_data[] = {
	{
		.membase  = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTA),
		.mapbase  = (unsigned long)(MX31_CS4_BASE_ADDR + PBC_SC16C652_UARTA),
		.irq      = EXPIO_INT_XUART_INTA,
		.uartclk  = 14745600,
		.regshift = 0,
		.iotype   = UPIO_MEM,
		.flags    = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ,
	}, {
		.membase  = (void *)(PBC_BASE_ADDRESS + PBC_SC16C652_UARTB),
		.mapbase  = (unsigned long)(MX31_CS4_BASE_ADDR + PBC_SC16C652_UARTB),
		.irq      = EXPIO_INT_XUART_INTB,
		.uartclk  = 14745600,
		.regshift = 0,
		.iotype   = UPIO_MEM,
		.flags    = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ,
	},
	{},
};

static struct platform_device serial_device = {
	.name	= "serial8250",
	.id	= 0,
	.dev	= {
		.platform_data = serial_platform_data,
	},
};

static int __init mxc_init_extuart(void)
{
	return platform_device_register(&serial_device);
}
#else
static inline int mxc_init_extuart(void)
{
	return 0;
}
#endif

#if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
static const struct imxuart_platform_data uart_pdata __initconst = {
	.flags = IMXUART_HAVE_RTSCTS,
};

static unsigned int uart_pins[] = {
	MX31_PIN_CTS1__CTS1,
	MX31_PIN_RTS1__RTS1,
	MX31_PIN_TXD1__TXD1,
	MX31_PIN_RXD1__RXD1
};

static inline void mxc_init_imx_uart(void)
{
	mxc_iomux_setup_multiple_pins(uart_pins, ARRAY_SIZE(uart_pins), "uart-0");
	imx31_add_imx_uart0(&uart_pdata);
}
#else /* !SERIAL_IMX */
static inline void mxc_init_imx_uart(void)
{
}
#endif /* !SERIAL_IMX */

static void mx31ads_expio_irq_handler(u32 irq, struct irq_desc *desc)
{
	u32 imr_val;
	u32 int_valid;
	u32 expio_irq;

	imr_val = __raw_readw(PBC_INTMASK_SET_REG);
	int_valid = __raw_readw(PBC_INTSTATUS_REG) & imr_val;

	expio_irq = MXC_EXP_IO_BASE;
	for (; int_valid != 0; int_valid >>= 1, expio_irq++) {
		if ((int_valid & 1) == 0)
			continue;

		generic_handle_irq(expio_irq);
	}
}

/*
 * Disable an expio pin's interrupt by setting the bit in the imr.
 * @param irq           an expio virtual irq number
 */
static void expio_mask_irq(u32 irq)
{
	u32 expio = MXC_IRQ_TO_EXPIO(irq);
	/* mask the interrupt */
	__raw_writew(1 << expio, PBC_INTMASK_CLEAR_REG);
	__raw_readw(PBC_INTMASK_CLEAR_REG);
}

/*
 * Acknowledge an expanded io pin's interrupt by clearing the bit in the isr.
 * @param irq           an expanded io virtual irq number
 */
static void expio_ack_irq(u32 irq)
{
	u32 expio = MXC_IRQ_TO_EXPIO(irq);
	/* clear the interrupt status */
	__raw_writew(1 << expio, PBC_INTSTATUS_REG);
}

/*
 * Enable a expio pin's interrupt by clearing the bit in the imr.
 * @param irq           a expio virtual irq number
 */
static void expio_unmask_irq(u32 irq)
{
	u32 expio = MXC_IRQ_TO_EXPIO(irq);
	/* unmask the interrupt */
	__raw_writew(1 << expio, PBC_INTMASK_SET_REG);
}

static struct irq_chip expio_irq_chip = {
	.name = "EXPIO(CPLD)",
	.ack = expio_ack_irq,
	.mask = expio_mask_irq,
	.unmask = expio_unmask_irq,
};

static void __init mx31ads_init_expio(void)
{
	int i;

	printk(KERN_INFO "MX31ADS EXPIO(CPLD) hardware\n");

	/*
	 * Configure INT line as GPIO input
	 */
	mxc_iomux_alloc_pin(IOMUX_MODE(MX31_PIN_GPIO1_4, IOMUX_CONFIG_GPIO), "expio");

	/* disable the interrupt and clear the status */
	__raw_writew(0xFFFF, PBC_INTMASK_CLEAR_REG);
	__raw_writew(0xFFFF, PBC_INTSTATUS_REG);
	for (i = MXC_EXP_IO_BASE; i < (MXC_EXP_IO_BASE + MXC_MAX_EXP_IO_LINES);
	     i++) {
		set_irq_chip(i, &expio_irq_chip);
		set_irq_handler(i, handle_level_irq);
		set_irq_flags(i, IRQF_VALID);
	}
	set_irq_type(EXPIO_PARENT_INT, IRQ_TYPE_LEVEL_HIGH);
	set_irq_chained_handler(EXPIO_PARENT_INT, mx31ads_expio_irq_handler);
}

#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
/* This section defines setup for the Wolfson Microelectronics
 * 1133-EV1 PMU/audio board.  When other PMU boards are supported the
 * regulator definitions may be shared with them, but for now they can
 * only be used with this board so would generate warnings about
 * unused statics and some of the configuration is specific to this
 * module.
 */

/* CPU */
static struct regulator_consumer_supply sw1a_consumers[] = {
	{
		.supply = "cpu_vcc",
	}
};

static struct regulator_init_data sw1a_data = {
	.constraints = {
		.name = "SW1A",
		.min_uV = 1275000,
		.max_uV = 1600000,
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
				  REGULATOR_CHANGE_MODE,
		.valid_modes_mask = REGULATOR_MODE_NORMAL |
				    REGULATOR_MODE_FAST,
		.state_mem = {
			 .uV = 1400000,
			 .mode = REGULATOR_MODE_NORMAL,
			 .enabled = 1,
		 },
		.initial_state = PM_SUSPEND_MEM,
		.always_on = 1,
		.boot_on = 1,
	},
	.num_consumer_supplies = ARRAY_SIZE(sw1a_consumers),
	.consumer_supplies = sw1a_consumers,
};

/* System IO - High */
static struct regulator_init_data viohi_data = {
	.constraints = {
		.name = "VIOHO",
		.min_uV = 2800000,
		.max_uV = 2800000,
		.state_mem = {
			 .uV = 2800000,
			 .mode = REGULATOR_MODE_NORMAL,
			 .enabled = 1,
		 },
		.initial_state = PM_SUSPEND_MEM,
		.always_on = 1,
		.boot_on = 1,
	},
};

/* System IO - Low */
static struct regulator_init_data violo_data = {
	.constraints = {
		.name = "VIOLO",
		.min_uV = 1800000,
		.max_uV = 1800000,
		.state_mem = {
			 .uV = 1800000,
			 .mode = REGULATOR_MODE_NORMAL,
			 .enabled = 1,
		 },
		.initial_state = PM_SUSPEND_MEM,
		.always_on = 1,
		.boot_on = 1,
	},
};

/* DDR RAM */
static struct regulator_init_data sw2a_data = {
	.constraints = {
		.name = "SW2A",
		.min_uV = 1800000,
		.max_uV = 1800000,
		.valid_modes_mask = REGULATOR_MODE_NORMAL,
		.state_mem = {
			 .uV = 1800000,
			 .mode = REGULATOR_MODE_NORMAL,
			 .enabled = 1,
		 },
		.state_disk = {
			 .mode = REGULATOR_MODE_NORMAL,
			 .enabled = 0,
		 },
		.always_on = 1,
		.boot_on = 1,
		.initial_state = PM_SUSPEND_MEM,
	},
};

static struct regulator_init_data ldo1_data = {
	.constraints = {
		.name = "VCAM/VMMC1/VMMC2",
		.min_uV = 2800000,
		.max_uV = 2800000,
		.valid_modes_mask = REGULATOR_MODE_NORMAL,
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
		.apply_uV = 1,
	},
};

static struct regulator_consumer_supply ldo2_consumers[] = {
	{ .supply = "AVDD", .dev_name = "1-001a" },
	{ .supply = "HPVDD", .dev_name = "1-001a" },
};

/* CODEC and SIM */
static struct regulator_init_data ldo2_data = {
	.constraints = {
		.name = "VESIM/VSIM/AVDD",
		.min_uV = 3300000,
		.max_uV = 3300000,
		.valid_modes_mask = REGULATOR_MODE_NORMAL,
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
		.apply_uV = 1,
	},
	.num_consumer_supplies = ARRAY_SIZE(ldo2_consumers),
	.consumer_supplies = ldo2_consumers,
};

/* General */
static struct regulator_init_data vdig_data = {
	.constraints = {
		.name = "VDIG",
		.min_uV = 1500000,
		.max_uV = 1500000,
		.valid_modes_mask = REGULATOR_MODE_NORMAL,
		.apply_uV = 1,
		.always_on = 1,
		.boot_on = 1,
	},
};

/* Tranceivers */
static struct regulator_init_data ldo4_data = {
	.constraints = {
		.name = "VRF1/CVDD_2.775",
		.min_uV = 2500000,
		.max_uV = 2500000,
		.valid_modes_mask = REGULATOR_MODE_NORMAL,
		.apply_uV = 1,
		.always_on = 1,
		.boot_on = 1,
	},
};

static struct wm8350_led_platform_data wm8350_led_data = {
	.name            = "wm8350:white",
	.default_trigger = "heartbeat",
	.max_uA          = 27899,
};

static struct wm8350_audio_platform_data imx32ads_wm8350_setup = {
	.vmid_discharge_msecs = 1000,
	.drain_msecs = 30,
	.cap_discharge_msecs = 700,
	.vmid_charge_msecs = 700,
	.vmid_s_curve = WM8350_S_CURVE_SLOW,
	.dis_out4 = WM8350_DISCHARGE_SLOW,
	.dis_out3 = WM8350_DISCHARGE_SLOW,
	.dis_out2 = WM8350_DISCHARGE_SLOW,
	.dis_out1 = WM8350_DISCHARGE_SLOW,
	.vroi_out4 = WM8350_TIE_OFF_500R,
	.vroi_out3 = WM8350_TIE_OFF_500R,
	.vroi_out2 = WM8350_TIE_OFF_500R,
	.vroi_out1 = WM8350_TIE_OFF_500R,
	.vroi_enable = 0,
	.codec_current_on = WM8350_CODEC_ISEL_1_0,
	.codec_current_standby = WM8350_CODEC_ISEL_0_5,
	.codec_current_charge = WM8350_CODEC_ISEL_1_5,
};

static int mx31_wm8350_init(struct wm8350 *wm8350)
{
	wm8350_gpio_config(wm8350, 0, WM8350_GPIO_DIR_IN,
			   WM8350_GPIO0_PWR_ON_IN, WM8350_GPIO_ACTIVE_LOW,
			   WM8350_GPIO_PULL_UP, WM8350_GPIO_INVERT_OFF,
			   WM8350_GPIO_DEBOUNCE_ON);

	wm8350_gpio_config(wm8350, 3, WM8350_GPIO_DIR_IN,
			   WM8350_GPIO3_PWR_OFF_IN, WM8350_GPIO_ACTIVE_HIGH,
			   WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF,
			   WM8350_GPIO_DEBOUNCE_ON);

	wm8350_gpio_config(wm8350, 4, WM8350_GPIO_DIR_IN,
			   WM8350_GPIO4_MR_IN, WM8350_GPIO_ACTIVE_HIGH,
			   WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF,
			   WM8350_GPIO_DEBOUNCE_OFF);

	wm8350_gpio_config(wm8350, 7, WM8350_GPIO_DIR_IN,
			   WM8350_GPIO7_HIBERNATE_IN, WM8350_GPIO_ACTIVE_HIGH,
			   WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF,
			   WM8350_GPIO_DEBOUNCE_OFF);

	wm8350_gpio_config(wm8350, 6, WM8350_GPIO_DIR_OUT,
			   WM8350_GPIO6_SDOUT_OUT, WM8350_GPIO_ACTIVE_HIGH,
			   WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF,
			   WM8350_GPIO_DEBOUNCE_OFF);

	wm8350_gpio_config(wm8350, 8, WM8350_GPIO_DIR_OUT,
			   WM8350_GPIO8_VCC_FAULT_OUT, WM8350_GPIO_ACTIVE_LOW,
			   WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF,
			   WM8350_GPIO_DEBOUNCE_OFF);

	wm8350_gpio_config(wm8350, 9, WM8350_GPIO_DIR_OUT,
			   WM8350_GPIO9_BATT_FAULT_OUT, WM8350_GPIO_ACTIVE_LOW,
			   WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF,
			   WM8350_GPIO_DEBOUNCE_OFF);

	wm8350_register_regulator(wm8350, WM8350_DCDC_1, &sw1a_data);
	wm8350_register_regulator(wm8350, WM8350_DCDC_3, &viohi_data);
	wm8350_register_regulator(wm8350, WM8350_DCDC_4, &violo_data);
	wm8350_register_regulator(wm8350, WM8350_DCDC_6, &sw2a_data);
	wm8350_register_regulator(wm8350, WM8350_LDO_1, &ldo1_data);
	wm8350_register_regulator(wm8350, WM8350_LDO_2, &ldo2_data);
	wm8350_register_regulator(wm8350, WM8350_LDO_3, &vdig_data);
	wm8350_register_regulator(wm8350, WM8350_LDO_4, &ldo4_data);

	/* LEDs */
	wm8350_dcdc_set_slot(wm8350, WM8350_DCDC_5, 1, 1,
			     WM8350_DC5_ERRACT_SHUTDOWN_CONV);
	wm8350_isink_set_flash(wm8350, WM8350_ISINK_A,
			       WM8350_ISINK_FLASH_DISABLE,
			       WM8350_ISINK_FLASH_TRIG_BIT,
			       WM8350_ISINK_FLASH_DUR_32MS,
			       WM8350_ISINK_FLASH_ON_INSTANT,
			       WM8350_ISINK_FLASH_OFF_INSTANT,
			       WM8350_ISINK_FLASH_MODE_EN);
	wm8350_dcdc25_set_mode(wm8350, WM8350_DCDC_5,
			       WM8350_ISINK_MODE_BOOST,
			       WM8350_ISINK_ILIM_NORMAL,
			       WM8350_DC5_RMP_20V,
			       WM8350_DC5_FBSRC_ISINKA);
	wm8350_register_led(wm8350, 0, WM8350_DCDC_5, WM8350_ISINK_A,
			    &wm8350_led_data);

	wm8350->codec.platform_data = &imx32ads_wm8350_setup;

	regulator_has_full_constraints();

	return 0;
}

static struct wm8350_platform_data __initdata mx31_wm8350_pdata = {
	.init = mx31_wm8350_init,
	.irq_base = MXC_BOARD_IRQ_START + MXC_MAX_EXP_IO_LINES,
};
#endif

#if defined(CONFIG_I2C_IMX) || defined(CONFIG_I2C_IMX_MODULE)
static struct i2c_board_info __initdata mx31ads_i2c1_devices[] = {
#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
	{
		I2C_BOARD_INFO("wm8350", 0x1a),
		.platform_data = &mx31_wm8350_pdata,
		.irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
	},
#endif
};

static void mxc_init_i2c(void)
{
	i2c_register_board_info(1, mx31ads_i2c1_devices,
				ARRAY_SIZE(mx31ads_i2c1_devices));

	mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MOSI, IOMUX_CONFIG_ALT1));
	mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MISO, IOMUX_CONFIG_ALT1));

	imx31_add_imx_i2c1(NULL);
}
#else
static void mxc_init_i2c(void)
{
}
#endif

static unsigned int ssi_pins[] = {
	MX31_PIN_SFS5__SFS5,
	MX31_PIN_SCK5__SCK5,
	MX31_PIN_SRXD5__SRXD5,
	MX31_PIN_STXD5__STXD5,
};

static void mxc_init_audio(void)
{
	imx31_add_imx_ssi(0, NULL);
	mxc_iomux_setup_multiple_pins(ssi_pins, ARRAY_SIZE(ssi_pins), "ssi");
}

/*!
 * This structure defines static mappings for the i.MX31ADS board.
 */
static struct map_desc mx31ads_io_desc[] __initdata = {
	{
		.virtual	= MX31_CS4_BASE_ADDR_VIRT,
		.pfn		= __phys_to_pfn(MX31_CS4_BASE_ADDR),
		.length		= MX31_CS4_SIZE / 2,
		.type		= MT_DEVICE
	},
};

/*!
 * Set up static virtual mappings.
 */
static void __init mx31ads_map_io(void)
{
	mx31_map_io();
	iotable_init(mx31ads_io_desc, ARRAY_SIZE(mx31ads_io_desc));
}

static void __init mx31ads_init_irq(void)
{
	mx31_init_irq();
	mx31ads_init_expio();
}

/*!
 * Board specific initialization.
 */
static void __init mxc_board_init(void)
{
	mxc_init_extuart();
	mxc_init_imx_uart();
	mxc_init_i2c();
	mxc_init_audio();
}

static void __init mx31ads_timer_init(void)
{
	mx31_clocks_init(26000000);
}

static struct sys_timer mx31ads_timer = {
	.init	= mx31ads_timer_init,
};

/*
 * The following uses standard kernel macros defined in arch.h in order to
 * initialize __mach_desc_MX31ADS data structure.
 */
MACHINE_START(MX31ADS, "Freescale MX31ADS")
	/* Maintainer: Freescale Semiconductor, Inc. */
	.phys_io	= MX31_AIPS1_BASE_ADDR,
	.io_pg_offst	= (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc,
	.boot_params    = MX3x_PHYS_OFFSET + 0x100,
	.map_io         = mx31ads_map_io,
	.init_irq       = mx31ads_init_irq,
	.init_machine   = mxc_board_init,
	.timer          = &mx31ads_timer,
MACHINE_END