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1/*
2 * arch/arm/mach-ep93xx/edb93xx.c
3 * Cirrus Logic EDB93xx Development Board support.
4 *
5 * EDB93XX, EDB9301, EDB9307A
6 * Copyright (C) 2008-2009 H Hartley Sweeten <hsweeten@visionengravers.com>
7 *
8 * EDB9302
9 * Copyright (C) 2006 George Kashperko <george@chas.com.ua>
10 *
11 * EDB9302A, EDB9315, EDB9315A
12 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
13 *
14 * EDB9307
15 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
16 *
17 * EDB9312
18 * Copyright (C) 2006 Infosys Technologies Limited
19 * Toufeeq Hussain <toufeeq_hussain@infosys.com>
20 *
21 * This program is free software; you can redistribute it and/or modify
22 * it under the terms of the GNU General Public License as published by
23 * the Free Software Foundation; either version 2 of the License, or (at
24 * your option) any later version.
25 */
26
27#include <linux/kernel.h>
28#include <linux/init.h>
a2bd40d2 29#include <linux/platform_device.h>
6531a991
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30#include <linux/i2c.h>
31#include <linux/i2c-gpio.h>
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32#include <linux/spi/spi.h>
33
34#include <sound/cs4271.h>
583ddafe 35
a2bd40d2 36#include <mach/hardware.h>
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37#include <linux/platform_data/video-ep93xx.h>
38#include <linux/platform_data/spi-ep93xx.h>
bd5f12a2 39#include <mach/gpio-ep93xx.h>
583ddafe 40
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41#include <asm/mach-types.h>
42#include <asm/mach/arch.h>
43
258249ec 44#include "soc.h"
583ddafe 45
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46static void __init edb93xx_register_flash(void)
47{
48 if (machine_is_edb9307() || machine_is_edb9312() ||
49 machine_is_edb9315()) {
16bcf78f 50 ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M);
a2bd40d2 51 } else {
16bcf78f 52 ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M);
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53 }
54}
55
b370e082 56static struct ep93xx_eth_data __initdata edb93xx_eth_data = {
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57 .phy_id = 1,
58};
59
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60
61/*************************************************************************
62 * EDB93xx i2c peripheral handling
63 *************************************************************************/
b370e082 64static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data = {
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65 .sda_pin = EP93XX_GPIO_LINE_EEDAT,
66 .sda_is_open_drain = 0,
67 .scl_pin = EP93XX_GPIO_LINE_EECLK,
68 .scl_is_open_drain = 0,
69 .udelay = 0, /* default to 100 kHz */
70 .timeout = 0, /* default to 100 ms */
71};
72
73static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = {
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74 {
75 I2C_BOARD_INFO("isl1208", 0x6f),
76 },
77};
78
6531a991 79static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = {
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80 {
81 I2C_BOARD_INFO("ds1337", 0x68),
82 },
83};
84
85static void __init edb93xx_register_i2c(void)
86{
87 if (machine_is_edb9302a() || machine_is_edb9307a() ||
88 machine_is_edb9315a()) {
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89 ep93xx_register_i2c(&edb93xx_i2c_gpio_data,
90 edb93xxa_i2c_board_info,
91 ARRAY_SIZE(edb93xxa_i2c_board_info));
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92 } else if (machine_is_edb9302() || machine_is_edb9307()
93 || machine_is_edb9312() || machine_is_edb9315()) {
3d977c01 94 ep93xx_register_i2c(&edb93xx_i2c_gpio_data,
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95 edb93xx_i2c_board_info,
96 ARRAY_SIZE(edb93xx_i2c_board_info));
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97 }
98}
99
1fbd972a 100
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101/*************************************************************************
102 * EDB93xx SPI peripheral handling
103 *************************************************************************/
104static struct cs4271_platform_data edb93xx_cs4271_data = {
105 .gpio_nreset = -EINVAL, /* filled in later */
106};
107
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108static struct spi_board_info edb93xx_spi_board_info[] __initdata = {
109 {
110 .modalias = "cs4271",
111 .platform_data = &edb93xx_cs4271_data,
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112 .max_speed_hz = 6000000,
113 .bus_num = 0,
114 .chip_select = 0,
115 .mode = SPI_MODE_3,
116 },
117};
118
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119static int edb93xx_spi_chipselects[] __initdata = {
120 EP93XX_GPIO_LINE_EGPIO6,
121};
122
31bb68a3 123static struct ep93xx_spi_info edb93xx_spi_info __initdata = {
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124 .chipselect = edb93xx_spi_chipselects,
125 .num_chipselect = ARRAY_SIZE(edb93xx_spi_chipselects),
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126};
127
128static void __init edb93xx_register_spi(void)
129{
130 if (machine_is_edb9301() || machine_is_edb9302())
131 edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1;
132 else if (machine_is_edb9302a() || machine_is_edb9307a())
133 edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2);
134 else if (machine_is_edb9315a())
135 edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14;
136
137 ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info,
138 ARRAY_SIZE(edb93xx_spi_board_info));
139}
140
141
142/*************************************************************************
143 * EDB93xx I2S
144 *************************************************************************/
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145static struct platform_device edb93xx_audio_device = {
146 .name = "edb93xx-audio",
147 .id = -1,
148};
149
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150static int __init edb93xx_has_audio(void)
151{
152 return (machine_is_edb9301() || machine_is_edb9302() ||
153 machine_is_edb9302a() || machine_is_edb9307a() ||
154 machine_is_edb9315a());
155}
156
157static void __init edb93xx_register_i2s(void)
158{
159 if (edb93xx_has_audio()) {
160 ep93xx_register_i2s();
075b20b0 161 platform_device_register(&edb93xx_audio_device);
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162 }
163}
164
165
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166/*************************************************************************
167 * EDB93xx pwm
168 *************************************************************************/
169static void __init edb93xx_register_pwm(void)
170{
171 if (machine_is_edb9301() ||
172 machine_is_edb9302() || machine_is_edb9302a()) {
173 /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
174 ep93xx_register_pwm(0, 1);
175 } else if (machine_is_edb9307() || machine_is_edb9307a()) {
176 /* EP9307 only has pwm.0 (PWMOUT) */
177 ep93xx_register_pwm(1, 0);
178 } else {
179 /* EP9312 and EP9315 have both */
180 ep93xx_register_pwm(1, 1);
181 }
182}
183
184
13055192
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185/*************************************************************************
186 * EDB93xx framebuffer
187 *************************************************************************/
188static struct ep93xxfb_mach_info __initdata edb93xxfb_info = {
13055192
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189 .flags = 0,
190};
191
192static int __init edb93xx_has_fb(void)
193{
194 /* These platforms have an ep93xx with video capability */
195 return machine_is_edb9307() || machine_is_edb9307a() ||
196 machine_is_edb9312() || machine_is_edb9315() ||
197 machine_is_edb9315a();
198}
199
200static void __init edb93xx_register_fb(void)
201{
202 if (!edb93xx_has_fb())
203 return;
204
205 if (machine_is_edb9307a() || machine_is_edb9315a())
206 edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0;
207 else
208 edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3;
209
210 ep93xx_register_fb(&edb93xxfb_info);
211}
212
213
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214/*************************************************************************
215 * EDB93xx IDE
216 *************************************************************************/
217static int __init edb93xx_has_ide(void)
218{
219 /*
220 * Although EDB9312 and EDB9315 do have IDE capability, they have
221 * INTRQ line wired as pull-up, which makes using IDE interface
222 * problematic.
223 */
224 return machine_is_edb9312() || machine_is_edb9315() ||
225 machine_is_edb9315a();
226}
227
228static void __init edb93xx_register_ide(void)
229{
230 if (!edb93xx_has_ide())
231 return;
232
233 ep93xx_register_ide();
234}
235
236
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237static void __init edb93xx_init_machine(void)
238{
239 ep93xx_init_devices();
240 edb93xx_register_flash();
241 ep93xx_register_eth(&edb93xx_eth_data, 1);
242 edb93xx_register_i2c();
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243 edb93xx_register_spi();
244 edb93xx_register_i2s();
1fbd972a 245 edb93xx_register_pwm();
13055192 246 edb93xx_register_fb();
762be297 247 edb93xx_register_ide();
57f3b7c7 248 ep93xx_register_adc();
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249}
250
251
252#ifdef CONFIG_MACH_EDB9301
253MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board")
254 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
e562cf17 255 .atag_offset = 0x100,
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256 .map_io = ep93xx_map_io,
257 .init_irq = ep93xx_init_irq,
6bb27d73 258 .init_time = ep93xx_timer_init,
a2bd40d2 259 .init_machine = edb93xx_init_machine,
c914283f 260 .init_late = ep93xx_init_late,
3275166e 261 .restart = ep93xx_restart,
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262MACHINE_END
263#endif
264
265#ifdef CONFIG_MACH_EDB9302
266MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board")
267 /* Maintainer: George Kashperko <george@chas.com.ua> */
e562cf17 268 .atag_offset = 0x100,
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269 .map_io = ep93xx_map_io,
270 .init_irq = ep93xx_init_irq,
6bb27d73 271 .init_time = ep93xx_timer_init,
a2bd40d2 272 .init_machine = edb93xx_init_machine,
c914283f 273 .init_late = ep93xx_init_late,
3275166e 274 .restart = ep93xx_restart,
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275MACHINE_END
276#endif
277
278#ifdef CONFIG_MACH_EDB9302A
279MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board")
280 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
e562cf17 281 .atag_offset = 0x100,
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282 .map_io = ep93xx_map_io,
283 .init_irq = ep93xx_init_irq,
6bb27d73 284 .init_time = ep93xx_timer_init,
a2bd40d2 285 .init_machine = edb93xx_init_machine,
c914283f 286 .init_late = ep93xx_init_late,
3275166e 287 .restart = ep93xx_restart,
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288MACHINE_END
289#endif
290
291#ifdef CONFIG_MACH_EDB9307
292MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board")
293 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
e562cf17 294 .atag_offset = 0x100,
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295 .map_io = ep93xx_map_io,
296 .init_irq = ep93xx_init_irq,
6bb27d73 297 .init_time = ep93xx_timer_init,
a2bd40d2 298 .init_machine = edb93xx_init_machine,
c914283f 299 .init_late = ep93xx_init_late,
3275166e 300 .restart = ep93xx_restart,
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301MACHINE_END
302#endif
303
304#ifdef CONFIG_MACH_EDB9307A
305MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board")
306 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
e562cf17 307 .atag_offset = 0x100,
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308 .map_io = ep93xx_map_io,
309 .init_irq = ep93xx_init_irq,
6bb27d73 310 .init_time = ep93xx_timer_init,
a2bd40d2 311 .init_machine = edb93xx_init_machine,
c914283f 312 .init_late = ep93xx_init_late,
3275166e 313 .restart = ep93xx_restart,
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314MACHINE_END
315#endif
316
317#ifdef CONFIG_MACH_EDB9312
318MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board")
319 /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
e562cf17 320 .atag_offset = 0x100,
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321 .map_io = ep93xx_map_io,
322 .init_irq = ep93xx_init_irq,
6bb27d73 323 .init_time = ep93xx_timer_init,
a2bd40d2 324 .init_machine = edb93xx_init_machine,
c914283f 325 .init_late = ep93xx_init_late,
3275166e 326 .restart = ep93xx_restart,
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327MACHINE_END
328#endif
329
330#ifdef CONFIG_MACH_EDB9315
331MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board")
332 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
e562cf17 333 .atag_offset = 0x100,
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334 .map_io = ep93xx_map_io,
335 .init_irq = ep93xx_init_irq,
6bb27d73 336 .init_time = ep93xx_timer_init,
a2bd40d2 337 .init_machine = edb93xx_init_machine,
c914283f 338 .init_late = ep93xx_init_late,
3275166e 339 .restart = ep93xx_restart,
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340MACHINE_END
341#endif
342
343#ifdef CONFIG_MACH_EDB9315A
344MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board")
345 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
e562cf17 346 .atag_offset = 0x100,
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347 .map_io = ep93xx_map_io,
348 .init_irq = ep93xx_init_irq,
6bb27d73 349 .init_time = ep93xx_timer_init,
a2bd40d2 350 .init_machine = edb93xx_init_machine,
c914283f 351 .init_late = ep93xx_init_late,
3275166e 352 .restart = ep93xx_restart,
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353MACHINE_END
354#endif