summaryrefslogtreecommitdiff
path: root/arch/arm/mach-ep93xx/edb93xx.c
blob: dbdb822a0100df400a14550f49b5f6833a3e111e (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
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * arch/arm/mach-ep93xx/edb93xx.c
 * Cirrus Logic EDB93xx Development Board support.
 *
 * EDB93XX, EDB9301, EDB9307A
 * Copyright (C) 2008-2009 H Hartley Sweeten <hsweeten@visionengravers.com>
 *
 * EDB9302
 * Copyright (C) 2006 George Kashperko <george@chas.com.ua>
 *
 * EDB9302A, EDB9315, EDB9315A
 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
 *
 * EDB9307
 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
 *
 * EDB9312
 * Copyright (C) 2006 Infosys Technologies Limited
 *                    Toufeeq Hussain <toufeeq_hussain@infosys.com>
 */

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <linux/gpio/machine.h>

#include <sound/cs4271.h>

#include "hardware.h"
#include <linux/platform_data/video-ep93xx.h>
#include <linux/platform_data/spi-ep93xx.h>
#include "gpio-ep93xx.h"

#include <asm/mach-types.h>
#include <asm/mach/arch.h>

#include "soc.h"

static void __init edb93xx_register_flash(void)
{
	if (machine_is_edb9307() || machine_is_edb9312() ||
	    machine_is_edb9315()) {
		ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
	} else {
		ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
	}
}

static struct ep93xx_eth_data __initdata edb93xx_eth_data = {
	.phy_id		= 1,
};


/*************************************************************************
 * EDB93xx i2c peripheral handling
 *************************************************************************/

static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = {
	{
		I2C_BOARD_INFO("isl1208", 0x6f),
	},
};

static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = {
	{
		I2C_BOARD_INFO("ds1337", 0x68),
	},
};

static void __init edb93xx_register_i2c(void)
{
	if (machine_is_edb9302a() || machine_is_edb9307a() ||
	    machine_is_edb9315a()) {
		ep93xx_register_i2c(edb93xxa_i2c_board_info,
				    ARRAY_SIZE(edb93xxa_i2c_board_info));
	} else if (machine_is_edb9302() || machine_is_edb9307()
		|| machine_is_edb9312() || machine_is_edb9315()) {
		ep93xx_register_i2c(edb93xx_i2c_board_info,
				    ARRAY_SIZE(edb93xx_i2c_board_info));
	}
}


/*************************************************************************
 * EDB93xx SPI peripheral handling
 *************************************************************************/
static struct cs4271_platform_data edb93xx_cs4271_data = {
	/* Intentionally left blank */
};

static struct spi_board_info edb93xx_spi_board_info[] __initdata = {
	{
		.modalias		= "cs4271",
		.platform_data		= &edb93xx_cs4271_data,
		.max_speed_hz		= 6000000,
		.bus_num		= 0,
		.chip_select		= 0,
		.mode			= SPI_MODE_3,
	},
};

static struct gpiod_lookup_table edb93xx_spi_cs_gpio_table = {
	.dev_id = "spi0",
	.table = {
		GPIO_LOOKUP("A", 6, "cs", GPIO_ACTIVE_LOW),
		{ },
	},
};

static struct ep93xx_spi_info edb93xx_spi_info __initdata = {
	/* Intentionally left blank */
};

static struct gpiod_lookup_table edb93xx_cs4272_edb9301_gpio_table = {
	.dev_id = "spi0.0", /* CS0 on SPI0 */
	.table = {
		GPIO_LOOKUP("A", 1, "reset", GPIO_ACTIVE_LOW),
		{ },
	},
};

static struct gpiod_lookup_table edb93xx_cs4272_edb9302_gpio_table = {
	.dev_id = "spi0.0", /* CS0 on SPI0 */
	.table = {
		GPIO_LOOKUP("H", 2, "reset", GPIO_ACTIVE_LOW),
		{ },
	},
};

static struct gpiod_lookup_table edb93xx_cs4272_edb9315_gpio_table = {
	.dev_id = "spi0.0", /* CS0 on SPI0 */
	.table = {
		GPIO_LOOKUP("B", 6, "reset", GPIO_ACTIVE_LOW),
		{ },
	},
};

static void __init edb93xx_register_spi(void)
{
	if (machine_is_edb9301() || machine_is_edb9302())
		gpiod_add_lookup_table(&edb93xx_cs4272_edb9301_gpio_table);
	else if (machine_is_edb9302a() || machine_is_edb9307a())
		gpiod_add_lookup_table(&edb93xx_cs4272_edb9302_gpio_table);
	else if (machine_is_edb9315a())
		gpiod_add_lookup_table(&edb93xx_cs4272_edb9315_gpio_table);

	gpiod_add_lookup_table(&edb93xx_spi_cs_gpio_table);
	ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info,
			    ARRAY_SIZE(edb93xx_spi_board_info));
}


/*************************************************************************
 * EDB93xx I2S
 *************************************************************************/
static struct platform_device edb93xx_audio_device = {
	.name		= "edb93xx-audio",
	.id		= -1,
};

static int __init edb93xx_has_audio(void)
{
	return (machine_is_edb9301() || machine_is_edb9302() ||
		machine_is_edb9302a() || machine_is_edb9307a() ||
		machine_is_edb9315a());
}

static void __init edb93xx_register_i2s(void)
{
	if (edb93xx_has_audio()) {
		ep93xx_register_i2s();
		platform_device_register(&edb93xx_audio_device);
	}
}


/*************************************************************************
 * EDB93xx pwm
 *************************************************************************/
static void __init edb93xx_register_pwm(void)
{
	if (machine_is_edb9301() ||
	    machine_is_edb9302() || machine_is_edb9302a()) {
		/* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
		ep93xx_register_pwm(0, 1);
	} else if (machine_is_edb9307() || machine_is_edb9307a()) {
		/* EP9307 only has pwm.0 (PWMOUT) */
		ep93xx_register_pwm(1, 0);
	} else {
		/* EP9312 and EP9315 have both */
		ep93xx_register_pwm(1, 1);
	}
}


/*************************************************************************
 * EDB93xx framebuffer
 *************************************************************************/
static struct ep93xxfb_mach_info __initdata edb93xxfb_info = {
	.flags		= 0,
};

static int __init edb93xx_has_fb(void)
{
	/* These platforms have an ep93xx with video capability */
	return machine_is_edb9307() || machine_is_edb9307a() ||
	       machine_is_edb9312() || machine_is_edb9315() ||
	       machine_is_edb9315a();
}

static void __init edb93xx_register_fb(void)
{
	if (!edb93xx_has_fb())
		return;

	if (machine_is_edb9307a() || machine_is_edb9315a())
		edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0;
	else
		edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3;

	ep93xx_register_fb(&edb93xxfb_info);
}


/*************************************************************************
 * EDB93xx IDE
 *************************************************************************/
static int __init edb93xx_has_ide(void)
{
	/*
	 * Although EDB9312 and EDB9315 do have IDE capability, they have
	 * INTRQ line wired as pull-up, which makes using IDE interface
	 * problematic.
	 */
	return machine_is_edb9312() || machine_is_edb9315() ||
	       machine_is_edb9315a();
}

static void __init edb93xx_register_ide(void)
{
	if (!edb93xx_has_ide())
		return;

	ep93xx_register_ide();
}


static void __init edb93xx_init_machine(void)
{
	ep93xx_init_devices();
	edb93xx_register_flash();
	ep93xx_register_eth(&edb93xx_eth_data, 1);
	edb93xx_register_i2c();
	edb93xx_register_spi();
	edb93xx_register_i2s();
	edb93xx_register_pwm();
	edb93xx_register_fb();
	edb93xx_register_ide();
	ep93xx_register_adc();
}


#ifdef CONFIG_MACH_EDB9301
MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board")
	/* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
	.atag_offset	= 0x100,
	.nr_irqs	= NR_EP93XX_IRQS,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= edb93xx_init_machine,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EDB9302
MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board")
	/* Maintainer: George Kashperko <george@chas.com.ua> */
	.atag_offset	= 0x100,
	.nr_irqs	= NR_EP93XX_IRQS,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= edb93xx_init_machine,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EDB9302A
MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board")
	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
	.atag_offset	= 0x100,
	.nr_irqs	= NR_EP93XX_IRQS,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= edb93xx_init_machine,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EDB9307
MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board")
	/* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
	.atag_offset	= 0x100,
	.nr_irqs	= NR_EP93XX_IRQS,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= edb93xx_init_machine,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EDB9307A
MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board")
	/* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
	.atag_offset	= 0x100,
	.nr_irqs	= NR_EP93XX_IRQS,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= edb93xx_init_machine,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EDB9312
MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board")
	/* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
	.atag_offset	= 0x100,
	.nr_irqs	= NR_EP93XX_IRQS,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= edb93xx_init_machine,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EDB9315
MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board")
	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
	.atag_offset	= 0x100,
	.nr_irqs	= NR_EP93XX_IRQS,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= edb93xx_init_machine,
	.restart	= ep93xx_restart,
MACHINE_END
#endif

#ifdef CONFIG_MACH_EDB9315A
MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board")
	/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
	.atag_offset	= 0x100,
	.nr_irqs	= NR_EP93XX_IRQS,
	.map_io		= ep93xx_map_io,
	.init_irq	= ep93xx_init_irq,
	.init_time	= ep93xx_timer_init,
	.init_machine	= edb93xx_init_machine,
	.restart	= ep93xx_restart,
MACHINE_END
#endif