aboutsummaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-imx/mach-mx27_3ds.c
blob: 2eafbac2c76356dad02db7bb13a08ec64f1b5726 (plain) (blame)
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
/*
 * Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
 *
 * Author: Fabio Estevam <fabio.estevam@freescale.com>
 *
 * 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.
 */

/*
 * This machine is known as:
 *  - i.MX27 3-Stack Development System
 *  - i.MX27 Platform Development Kit (i.MX27 PDK)
 */

#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <linux/delay.h>
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <linux/regulator/machine.h>
#include <linux/spi/l4f00242t03.h>

#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/iomux-mx27.h>
#include <mach/ulpi.h>
#include <mach/irqs.h>
#include <mach/3ds_debugboard.h>

#include "devices-imx27.h"

#define SD1_EN_GPIO		IMX_GPIO_NR(2, 25)
#define OTG_PHY_RESET_GPIO	IMX_GPIO_NR(2, 23)
#define SPI2_SS0		IMX_GPIO_NR(4, 21)
#define EXPIO_PARENT_INT	gpio_to_irq(IMX_GPIO_NR(3, 28))
#define PMIC_INT		IMX_GPIO_NR(3, 14)
#define SPI1_SS0		IMX_GPIO_NR(4, 28)
#define SD1_CD			IMX_GPIO_NR(2, 26)
#define LCD_RESET		IMX_GPIO_NR(1, 3)
#define LCD_ENABLE		IMX_GPIO_NR(1, 31)

static const int mx27pdk_pins[] __initconst = {
	/* UART1 */
	PE12_PF_UART1_TXD,
	PE13_PF_UART1_RXD,
	PE14_PF_UART1_CTS,
	PE15_PF_UART1_RTS,
	/* FEC */
	PD0_AIN_FEC_TXD0,
	PD1_AIN_FEC_TXD1,
	PD2_AIN_FEC_TXD2,
	PD3_AIN_FEC_TXD3,
	PD4_AOUT_FEC_RX_ER,
	PD5_AOUT_FEC_RXD1,
	PD6_AOUT_FEC_RXD2,
	PD7_AOUT_FEC_RXD3,
	PD8_AF_FEC_MDIO,
	PD9_AIN_FEC_MDC,
	PD10_AOUT_FEC_CRS,
	PD11_AOUT_FEC_TX_CLK,
	PD12_AOUT_FEC_RXD0,
	PD13_AOUT_FEC_RX_DV,
	PD14_AOUT_FEC_RX_CLK,
	PD15_AOUT_FEC_COL,
	PD16_AIN_FEC_TX_ER,
	PF23_AIN_FEC_TX_EN,
	/* SDHC1 */
	PE18_PF_SD1_D0,
	PE19_PF_SD1_D1,
	PE20_PF_SD1_D2,
	PE21_PF_SD1_D3,
	PE22_PF_SD1_CMD,
	PE23_PF_SD1_CLK,
	SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
	/* OTG */
	OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
	PC7_PF_USBOTG_DATA5,
	PC8_PF_USBOTG_DATA6,
	PC9_PF_USBOTG_DATA0,
	PC10_PF_USBOTG_DATA2,
	PC11_PF_USBOTG_DATA1,
	PC12_PF_USBOTG_DATA4,
	PC13_PF_USBOTG_DATA3,
	PE0_PF_USBOTG_NXT,
	PE1_PF_USBOTG_STP,
	PE2_PF_USBOTG_DIR,
	PE24_PF_USBOTG_CLK,
	PE25_PF_USBOTG_DATA7,
	/* CSPI1 */
	PD31_PF_CSPI1_MOSI,
	PD30_PF_CSPI1_MISO,
	PD29_PF_CSPI1_SCLK,
	PD25_PF_CSPI1_RDY,
	SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
	/* CSPI2 */
	PD22_PF_CSPI2_SCLK,
	PD23_PF_CSPI2_MISO,
	PD24_PF_CSPI2_MOSI,
	SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
	/* I2C1 */
	PD17_PF_I2C_DATA,
	PD18_PF_I2C_CLK,
	/* PMIC INT */
	PMIC_INT | GPIO_GPIO | GPIO_IN,
	/* LCD */
	PA5_PF_LSCLK,
	PA6_PF_LD0,
	PA7_PF_LD1,
	PA8_PF_LD2,
	PA9_PF_LD3,
	PA10_PF_LD4,
	PA11_PF_LD5,
	PA12_PF_LD6,
	PA13_PF_LD7,
	PA14_PF_LD8,
	PA15_PF_LD9,
	PA16_PF_LD10,
	PA17_PF_LD11,
	PA18_PF_LD12,
	PA19_PF_LD13,
	PA20_PF_LD14,
	PA21_PF_LD15,
	PA22_PF_LD16,
	PA23_PF_LD17,
	PA28_PF_HSYNC,
	PA29_PF_VSYNC,
	PA30_PF_CONTRAST,
	LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
	LCD_RESET | GPIO_GPIO | GPIO_OUT,
};

static const struct imxuart_platform_data uart_pdata __initconst = {
	.flags = IMXUART_HAVE_RTSCTS,
};

/*
 * Matrix keyboard
 */

static const uint32_t mx27_3ds_keymap[] = {
	KEY(0, 0, KEY_UP),
	KEY(0, 1, KEY_DOWN),
	KEY(1, 0, KEY_RIGHT),
	KEY(1, 1, KEY_LEFT),
	KEY(1, 2, KEY_ENTER),
	KEY(2, 0, KEY_F6),
	KEY(2, 1, KEY_F8),
	KEY(2, 2, KEY_F9),
	KEY(2, 3, KEY_F10),
};

static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
	.keymap		= mx27_3ds_keymap,
	.keymap_size	= ARRAY_SIZE(mx27_3ds_keymap),
};

static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
				void *data)
{
	return request_irq(gpio_to_irq(SD1_CD), detect_irq,
	IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
}

static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
{
	free_irq(gpio_to_irq(SD1_CD), data);
}

static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
	.init = mx27_3ds_sdhc1_init,
	.exit = mx27_3ds_sdhc1_exit,
};

static void mx27_3ds_sdhc1_enable_level_translator(void)
{
	/* Turn on TXB0108 OE pin */
	gpio_request(SD1_EN_GPIO, "sd1_enable");
	gpio_direction_output(SD1_EN_GPIO, 1);
}


static int otg_phy_init(void)
{
	gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
	gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
	mdelay(1);
	gpio_set_value(OTG_PHY_RESET_GPIO, 1);
	return 0;
}

static int mx27_3ds_otg_init(struct platform_device *pdev)
{
	return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
}

static struct mxc_usbh_platform_data otg_pdata __initdata = {
	.init	= mx27_3ds_otg_init,
	.portsc	= MXC_EHCI_MODE_ULPI,
};

static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
	.operating_mode = FSL_USB2_DR_DEVICE,
	.phy_mode       = FSL_USB2_PHY_ULPI,
};

static int otg_mode_host;

static int __init mx27_3ds_otg_mode(char *options)
{
	if (!strcmp(options, "host"))
		otg_mode_host = 1;
	else if (!strcmp(options, "device"))
		otg_mode_host = 0;
	else
		pr_info("otg_mode neither \"host\" nor \"device\". "
			"Defaulting to device\n");
	return 0;
}
__setup("otg_mode=", mx27_3ds_otg_mode);

/* Regulators */
static struct regulator_init_data gpo_init = {
	.constraints = {
		.boot_on = 1,
		.always_on = 1,
	}
};

static struct regulator_consumer_supply vmmc1_consumers[] = {
	REGULATOR_SUPPLY("lcd_2v8", NULL),
};

static struct regulator_init_data vmmc1_init = {
	.constraints = {
		.min_uV	= 2800000,
		.max_uV = 2800000,
		.apply_uV = 1,
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
				  REGULATOR_CHANGE_STATUS,
	},
	.num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
	.consumer_supplies = vmmc1_consumers,
};

static struct regulator_consumer_supply vgen_consumers[] = {
	REGULATOR_SUPPLY("vdd_lcdio", NULL),
};

static struct regulator_init_data vgen_init = {
	.constraints = {
		.min_uV	= 1800000,
		.max_uV = 1800000,
		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
	},
	.num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
	.consumer_supplies = vgen_consumers,
};

static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
	{
		.id = MC13783_REG_VMMC1,
		.init_data = &vmmc1_init,
	}, {
		.id = MC13783_REG_VGEN,
		.init_data = &vgen_init,
	}, {
		.id = MC13783_REG_GPO1, /* Turn on 1.8V */
		.init_data = &gpo_init,
	}, {
		.id = MC13783_REG_GPO3, /* Turn on 3.3V */
		.init_data = &gpo_init,
	},
};

/* MC13783 */
static struct mc13xxx_platform_data mc13783_pdata = {
	.regulators = {
		.regulators = mx27_3ds_regulators,
		.num_regulators = ARRAY_SIZE(mx27_3ds_regulators),

	},
	.flags  = MC13783_USE_REGULATOR | MC13783_USE_TOUCHSCREEN |
	MC13783_USE_RTC,
};

/* SPI */
static int spi1_chipselect[] = {SPI1_SS0};

static const struct spi_imx_master spi1_pdata __initconst = {
	.chipselect	= spi1_chipselect,
	.num_chipselect	= ARRAY_SIZE(spi1_chipselect),
};

static int spi2_chipselect[] = {SPI2_SS0};

static const struct spi_imx_master spi2_pdata __initconst = {
	.chipselect	= spi2_chipselect,
	.num_chipselect	= ARRAY_SIZE(spi2_chipselect),
};

static struct imx_fb_videomode mx27_3ds_modes[] = {
	{	/* 480x640 @ 60 Hz */
		.mode = {
			.name		= "Epson-VGA",
			.refresh	= 60,
			.xres		= 480,
			.yres		= 640,
			.pixclock	= 41701,
			.left_margin	= 20,
			.right_margin	= 41,
			.upper_margin	= 10,
			.lower_margin	= 5,
			.hsync_len	= 20,
			.vsync_len	= 10,
			.sync		= FB_SYNC_OE_ACT_HIGH |
						FB_SYNC_CLK_INVERT,
			.vmode		= FB_VMODE_NONINTERLACED,
			.flag		= 0,
		},
		.bpp		= 16,
		.pcr		= 0xFAC08B82,
	},
};

static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
	.mode = mx27_3ds_modes,
	.num_modes = ARRAY_SIZE(mx27_3ds_modes),
	.pwmr		= 0x00A903FF,
	.lscr1		= 0x00120300,
	.dmacr		= 0x00020010,
};

/* LCD */
static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
	.reset_gpio		= LCD_RESET,
	.data_enable_gpio	= LCD_ENABLE,
	.core_supply		= "lcd_2v8",
	.io_supply		= "vdd_lcdio",
};

static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
	{
		.modalias	= "mc13783",
		.max_speed_hz	= 1000000,
		.bus_num	= 1,
		.chip_select	= 0, /* SS0 */
		.platform_data	= &mc13783_pdata,
		.irq = gpio_to_irq(PMIC_INT),
		.mode = SPI_CS_HIGH,
	}, {
		.modalias	= "l4f00242t03",
		.max_speed_hz	= 5000000,
		.bus_num	= 0,
		.chip_select	= 0, /* SS0 */
		.platform_data	= &mx27_3ds_lcd_pdata,
	},
};

static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
	.bitrate = 100000,
};

static void __init mx27pdk_init(void)
{
	imx27_soc_init();

	mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
		"mx27pdk");
	mx27_3ds_sdhc1_enable_level_translator();
	imx27_add_imx_uart0(&uart_pdata);
	imx27_add_fec(NULL);
	imx27_add_imx_keypad(&mx27_3ds_keymap_data);
	imx27_add_mxc_mmc(0, &sdhc1_pdata);
	imx27_add_imx2_wdt(NULL);
	otg_phy_init();

	if (otg_mode_host) {
		otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
				ULPI_OTG_DRVVBUS_EXT);

		if (otg_pdata.otg)
			imx27_add_mxc_ehci_otg(&otg_pdata);
	}

	if (!otg_mode_host)
		imx27_add_fsl_usb2_udc(&otg_device_pdata);

	imx27_add_spi_imx1(&spi2_pdata);
	imx27_add_spi_imx0(&spi1_pdata);
	spi_register_board_info(mx27_3ds_spi_devs,
						ARRAY_SIZE(mx27_3ds_spi_devs));

	if (mxc_expio_init(MX27_CS5_BASE_ADDR, EXPIO_PARENT_INT))
		pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
	imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
	imx27_add_imx_fb(&mx27_3ds_fb_data);
}

static void __init mx27pdk_timer_init(void)
{
	mx27_clocks_init(26000000);
}

static struct sys_timer mx27pdk_timer = {
	.init	= mx27pdk_timer_init,
};

MACHINE_START(MX27_3DS, "Freescale MX27PDK")
	/* maintainer: Freescale Semiconductor, Inc. */
	.atag_offset = 0x100,
	.map_io = mx27_map_io,
	.init_early = imx27_init_early,
	.init_irq = mx27_init_irq,
	.timer = &mx27pdk_timer,
	.init_machine = mx27pdk_init,
MACHINE_END