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