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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 30#include <linux/i2c.h>
31bb68a3 31#include <linux/spi/spi.h>
1dfbf334 32#include <linux/gpio/machine.h>
31bb68a3
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33
34#include <sound/cs4271.h>
583ddafe 35
5b7cc904 36#include "hardware.h"
a3b29245
AB
37#include <linux/platform_data/video-ep93xx.h>
38#include <linux/platform_data/spi-ep93xx.h>
5b7cc904 39#include "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 *************************************************************************/
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64
65static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = {
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66 {
67 I2C_BOARD_INFO("isl1208", 0x6f),
68 },
69};
70
6531a991 71static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = {
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72 {
73 I2C_BOARD_INFO("ds1337", 0x68),
74 },
75};
76
77static void __init edb93xx_register_i2c(void)
78{
79 if (machine_is_edb9302a() || machine_is_edb9307a() ||
80 machine_is_edb9315a()) {
b2e63555 81 ep93xx_register_i2c(edb93xxa_i2c_board_info,
6531a991 82 ARRAY_SIZE(edb93xxa_i2c_board_info));
688df8f0
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83 } else if (machine_is_edb9302() || machine_is_edb9307()
84 || machine_is_edb9312() || machine_is_edb9315()) {
b2e63555 85 ep93xx_register_i2c(edb93xx_i2c_board_info,
6531a991 86 ARRAY_SIZE(edb93xx_i2c_board_info));
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87 }
88}
89
1fbd972a 90
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91/*************************************************************************
92 * EDB93xx SPI peripheral handling
93 *************************************************************************/
94static struct cs4271_platform_data edb93xx_cs4271_data = {
95 .gpio_nreset = -EINVAL, /* filled in later */
96};
97
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98static struct spi_board_info edb93xx_spi_board_info[] __initdata = {
99 {
100 .modalias = "cs4271",
101 .platform_data = &edb93xx_cs4271_data,
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102 .max_speed_hz = 6000000,
103 .bus_num = 0,
104 .chip_select = 0,
105 .mode = SPI_MODE_3,
106 },
107};
108
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109static struct gpiod_lookup_table edb93xx_spi_cs_gpio_table = {
110 .dev_id = "ep93xx-spi.0",
111 .table = {
112 GPIO_LOOKUP("A", 6, "cs", GPIO_ACTIVE_LOW),
113 { },
114 },
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115};
116
31bb68a3 117static struct ep93xx_spi_info edb93xx_spi_info __initdata = {
1dfbf334 118 /* Intentionally left blank */
31bb68a3
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119};
120
121static void __init edb93xx_register_spi(void)
122{
123 if (machine_is_edb9301() || machine_is_edb9302())
124 edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1;
125 else if (machine_is_edb9302a() || machine_is_edb9307a())
126 edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2);
127 else if (machine_is_edb9315a())
128 edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14;
129
1dfbf334 130 gpiod_add_lookup_table(&edb93xx_spi_cs_gpio_table);
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131 ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info,
132 ARRAY_SIZE(edb93xx_spi_board_info));
133}
134
135
136/*************************************************************************
137 * EDB93xx I2S
138 *************************************************************************/
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139static struct platform_device edb93xx_audio_device = {
140 .name = "edb93xx-audio",
141 .id = -1,
142};
143
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144static int __init edb93xx_has_audio(void)
145{
146 return (machine_is_edb9301() || machine_is_edb9302() ||
147 machine_is_edb9302a() || machine_is_edb9307a() ||
148 machine_is_edb9315a());
149}
150
151static void __init edb93xx_register_i2s(void)
152{
153 if (edb93xx_has_audio()) {
154 ep93xx_register_i2s();
075b20b0 155 platform_device_register(&edb93xx_audio_device);
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156 }
157}
158
159
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160/*************************************************************************
161 * EDB93xx pwm
162 *************************************************************************/
163static void __init edb93xx_register_pwm(void)
164{
165 if (machine_is_edb9301() ||
166 machine_is_edb9302() || machine_is_edb9302a()) {
167 /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
168 ep93xx_register_pwm(0, 1);
169 } else if (machine_is_edb9307() || machine_is_edb9307a()) {
170 /* EP9307 only has pwm.0 (PWMOUT) */
171 ep93xx_register_pwm(1, 0);
172 } else {
173 /* EP9312 and EP9315 have both */
174 ep93xx_register_pwm(1, 1);
175 }
176}
177
178
13055192
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179/*************************************************************************
180 * EDB93xx framebuffer
181 *************************************************************************/
182static struct ep93xxfb_mach_info __initdata edb93xxfb_info = {
13055192
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183 .flags = 0,
184};
185
186static int __init edb93xx_has_fb(void)
187{
188 /* These platforms have an ep93xx with video capability */
189 return machine_is_edb9307() || machine_is_edb9307a() ||
190 machine_is_edb9312() || machine_is_edb9315() ||
191 machine_is_edb9315a();
192}
193
194static void __init edb93xx_register_fb(void)
195{
196 if (!edb93xx_has_fb())
197 return;
198
199 if (machine_is_edb9307a() || machine_is_edb9315a())
200 edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0;
201 else
202 edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3;
203
204 ep93xx_register_fb(&edb93xxfb_info);
205}
206
207
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208/*************************************************************************
209 * EDB93xx IDE
210 *************************************************************************/
211static int __init edb93xx_has_ide(void)
212{
213 /*
214 * Although EDB9312 and EDB9315 do have IDE capability, they have
215 * INTRQ line wired as pull-up, which makes using IDE interface
216 * problematic.
217 */
218 return machine_is_edb9312() || machine_is_edb9315() ||
219 machine_is_edb9315a();
220}
221
222static void __init edb93xx_register_ide(void)
223{
224 if (!edb93xx_has_ide())
225 return;
226
227 ep93xx_register_ide();
228}
229
230
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231static void __init edb93xx_init_machine(void)
232{
233 ep93xx_init_devices();
234 edb93xx_register_flash();
235 ep93xx_register_eth(&edb93xx_eth_data, 1);
236 edb93xx_register_i2c();
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237 edb93xx_register_spi();
238 edb93xx_register_i2s();
1fbd972a 239 edb93xx_register_pwm();
13055192 240 edb93xx_register_fb();
762be297 241 edb93xx_register_ide();
57f3b7c7 242 ep93xx_register_adc();
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243}
244
245
246#ifdef CONFIG_MACH_EDB9301
247MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board")
248 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
e562cf17 249 .atag_offset = 0x100,
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250 .map_io = ep93xx_map_io,
251 .init_irq = ep93xx_init_irq,
6bb27d73 252 .init_time = ep93xx_timer_init,
a2bd40d2 253 .init_machine = edb93xx_init_machine,
c914283f 254 .init_late = ep93xx_init_late,
3275166e 255 .restart = ep93xx_restart,
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256MACHINE_END
257#endif
258
259#ifdef CONFIG_MACH_EDB9302
260MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board")
261 /* Maintainer: George Kashperko <george@chas.com.ua> */
e562cf17 262 .atag_offset = 0x100,
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263 .map_io = ep93xx_map_io,
264 .init_irq = ep93xx_init_irq,
6bb27d73 265 .init_time = ep93xx_timer_init,
a2bd40d2 266 .init_machine = edb93xx_init_machine,
c914283f 267 .init_late = ep93xx_init_late,
3275166e 268 .restart = ep93xx_restart,
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269MACHINE_END
270#endif
271
272#ifdef CONFIG_MACH_EDB9302A
273MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board")
274 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
e562cf17 275 .atag_offset = 0x100,
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276 .map_io = ep93xx_map_io,
277 .init_irq = ep93xx_init_irq,
6bb27d73 278 .init_time = ep93xx_timer_init,
a2bd40d2 279 .init_machine = edb93xx_init_machine,
c914283f 280 .init_late = ep93xx_init_late,
3275166e 281 .restart = ep93xx_restart,
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282MACHINE_END
283#endif
284
285#ifdef CONFIG_MACH_EDB9307
286MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board")
287 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
e562cf17 288 .atag_offset = 0x100,
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289 .map_io = ep93xx_map_io,
290 .init_irq = ep93xx_init_irq,
6bb27d73 291 .init_time = ep93xx_timer_init,
a2bd40d2 292 .init_machine = edb93xx_init_machine,
c914283f 293 .init_late = ep93xx_init_late,
3275166e 294 .restart = ep93xx_restart,
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295MACHINE_END
296#endif
297
298#ifdef CONFIG_MACH_EDB9307A
299MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board")
300 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
e562cf17 301 .atag_offset = 0x100,
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302 .map_io = ep93xx_map_io,
303 .init_irq = ep93xx_init_irq,
6bb27d73 304 .init_time = ep93xx_timer_init,
a2bd40d2 305 .init_machine = edb93xx_init_machine,
c914283f 306 .init_late = ep93xx_init_late,
3275166e 307 .restart = ep93xx_restart,
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308MACHINE_END
309#endif
310
311#ifdef CONFIG_MACH_EDB9312
312MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board")
313 /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
e562cf17 314 .atag_offset = 0x100,
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315 .map_io = ep93xx_map_io,
316 .init_irq = ep93xx_init_irq,
6bb27d73 317 .init_time = ep93xx_timer_init,
a2bd40d2 318 .init_machine = edb93xx_init_machine,
c914283f 319 .init_late = ep93xx_init_late,
3275166e 320 .restart = ep93xx_restart,
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321MACHINE_END
322#endif
323
324#ifdef CONFIG_MACH_EDB9315
325MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board")
326 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
e562cf17 327 .atag_offset = 0x100,
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328 .map_io = ep93xx_map_io,
329 .init_irq = ep93xx_init_irq,
6bb27d73 330 .init_time = ep93xx_timer_init,
a2bd40d2 331 .init_machine = edb93xx_init_machine,
c914283f 332 .init_late = ep93xx_init_late,
3275166e 333 .restart = ep93xx_restart,
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334MACHINE_END
335#endif
336
337#ifdef CONFIG_MACH_EDB9315A
338MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board")
339 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
e562cf17 340 .atag_offset = 0x100,
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341 .map_io = ep93xx_map_io,
342 .init_irq = ep93xx_init_irq,
6bb27d73 343 .init_time = ep93xx_timer_init,
a2bd40d2 344 .init_machine = edb93xx_init_machine,
c914283f 345 .init_late = ep93xx_init_late,
3275166e 346 .restart = ep93xx_restart,
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347MACHINE_END
348#endif