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a2bd40d2 HS |
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 HS |
30 | #include <linux/gpio.h> |
31 | #include <linux/i2c.h> | |
32 | #include <linux/i2c-gpio.h> | |
31bb68a3 AS |
33 | #include <linux/spi/spi.h> |
34 | ||
35 | #include <sound/cs4271.h> | |
583ddafe | 36 | |
a2bd40d2 | 37 | #include <mach/hardware.h> |
a3b29245 AB |
38 | #include <linux/platform_data/video-ep93xx.h> |
39 | #include <linux/platform_data/spi-ep93xx.h> | |
bd5f12a2 | 40 | #include <mach/gpio-ep93xx.h> |
583ddafe | 41 | |
a2bd40d2 HS |
42 | #include <asm/mach-types.h> |
43 | #include <asm/mach/arch.h> | |
44 | ||
258249ec | 45 | #include "soc.h" |
583ddafe | 46 | |
a2bd40d2 HS |
47 | static void __init edb93xx_register_flash(void) |
48 | { | |
49 | if (machine_is_edb9307() || machine_is_edb9312() || | |
50 | machine_is_edb9315()) { | |
16bcf78f | 51 | ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M); |
a2bd40d2 | 52 | } else { |
16bcf78f | 53 | ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M); |
a2bd40d2 HS |
54 | } |
55 | } | |
56 | ||
b370e082 | 57 | static struct ep93xx_eth_data __initdata edb93xx_eth_data = { |
a2bd40d2 HS |
58 | .phy_id = 1, |
59 | }; | |
60 | ||
6531a991 HS |
61 | |
62 | /************************************************************************* | |
63 | * EDB93xx i2c peripheral handling | |
64 | *************************************************************************/ | |
b370e082 | 65 | static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data = { |
6531a991 HS |
66 | .sda_pin = EP93XX_GPIO_LINE_EEDAT, |
67 | .sda_is_open_drain = 0, | |
68 | .scl_pin = EP93XX_GPIO_LINE_EECLK, | |
69 | .scl_is_open_drain = 0, | |
70 | .udelay = 0, /* default to 100 kHz */ | |
71 | .timeout = 0, /* default to 100 ms */ | |
72 | }; | |
73 | ||
74 | static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = { | |
a2bd40d2 HS |
75 | { |
76 | I2C_BOARD_INFO("isl1208", 0x6f), | |
77 | }, | |
78 | }; | |
79 | ||
6531a991 | 80 | static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = { |
a2bd40d2 HS |
81 | { |
82 | I2C_BOARD_INFO("ds1337", 0x68), | |
83 | }, | |
84 | }; | |
85 | ||
86 | static void __init edb93xx_register_i2c(void) | |
87 | { | |
88 | if (machine_is_edb9302a() || machine_is_edb9307a() || | |
89 | machine_is_edb9315a()) { | |
6531a991 HS |
90 | ep93xx_register_i2c(&edb93xx_i2c_gpio_data, |
91 | edb93xxa_i2c_board_info, | |
92 | ARRAY_SIZE(edb93xxa_i2c_board_info)); | |
688df8f0 TC |
93 | } else if (machine_is_edb9302() || machine_is_edb9307() |
94 | || machine_is_edb9312() || machine_is_edb9315()) { | |
3d977c01 | 95 | ep93xx_register_i2c(&edb93xx_i2c_gpio_data, |
6531a991 HS |
96 | edb93xx_i2c_board_info, |
97 | ARRAY_SIZE(edb93xx_i2c_board_info)); | |
a2bd40d2 HS |
98 | } |
99 | } | |
100 | ||
1fbd972a | 101 | |
31bb68a3 AS |
102 | /************************************************************************* |
103 | * EDB93xx SPI peripheral handling | |
104 | *************************************************************************/ | |
105 | static struct cs4271_platform_data edb93xx_cs4271_data = { | |
106 | .gpio_nreset = -EINVAL, /* filled in later */ | |
107 | }; | |
108 | ||
109 | static int edb93xx_cs4271_hw_setup(struct spi_device *spi) | |
110 | { | |
111 | return gpio_request_one(EP93XX_GPIO_LINE_EGPIO6, | |
112 | GPIOF_OUT_INIT_HIGH, spi->modalias); | |
113 | } | |
114 | ||
115 | static void edb93xx_cs4271_hw_cleanup(struct spi_device *spi) | |
116 | { | |
117 | gpio_free(EP93XX_GPIO_LINE_EGPIO6); | |
118 | } | |
119 | ||
120 | static void edb93xx_cs4271_hw_cs_control(struct spi_device *spi, int value) | |
121 | { | |
122 | gpio_set_value(EP93XX_GPIO_LINE_EGPIO6, value); | |
123 | } | |
124 | ||
125 | static struct ep93xx_spi_chip_ops edb93xx_cs4271_hw = { | |
126 | .setup = edb93xx_cs4271_hw_setup, | |
127 | .cleanup = edb93xx_cs4271_hw_cleanup, | |
128 | .cs_control = edb93xx_cs4271_hw_cs_control, | |
129 | }; | |
130 | ||
131 | static struct spi_board_info edb93xx_spi_board_info[] __initdata = { | |
132 | { | |
133 | .modalias = "cs4271", | |
134 | .platform_data = &edb93xx_cs4271_data, | |
135 | .controller_data = &edb93xx_cs4271_hw, | |
136 | .max_speed_hz = 6000000, | |
137 | .bus_num = 0, | |
138 | .chip_select = 0, | |
139 | .mode = SPI_MODE_3, | |
140 | }, | |
141 | }; | |
142 | ||
143 | static struct ep93xx_spi_info edb93xx_spi_info __initdata = { | |
144 | .num_chipselect = ARRAY_SIZE(edb93xx_spi_board_info), | |
145 | }; | |
146 | ||
147 | static void __init edb93xx_register_spi(void) | |
148 | { | |
149 | if (machine_is_edb9301() || machine_is_edb9302()) | |
150 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1; | |
151 | else if (machine_is_edb9302a() || machine_is_edb9307a()) | |
152 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2); | |
153 | else if (machine_is_edb9315a()) | |
154 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14; | |
155 | ||
156 | ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info, | |
157 | ARRAY_SIZE(edb93xx_spi_board_info)); | |
158 | } | |
159 | ||
160 | ||
161 | /************************************************************************* | |
162 | * EDB93xx I2S | |
163 | *************************************************************************/ | |
075b20b0 MW |
164 | static struct platform_device edb93xx_audio_device = { |
165 | .name = "edb93xx-audio", | |
166 | .id = -1, | |
167 | }; | |
168 | ||
31bb68a3 AS |
169 | static int __init edb93xx_has_audio(void) |
170 | { | |
171 | return (machine_is_edb9301() || machine_is_edb9302() || | |
172 | machine_is_edb9302a() || machine_is_edb9307a() || | |
173 | machine_is_edb9315a()); | |
174 | } | |
175 | ||
176 | static void __init edb93xx_register_i2s(void) | |
177 | { | |
178 | if (edb93xx_has_audio()) { | |
179 | ep93xx_register_i2s(); | |
075b20b0 | 180 | platform_device_register(&edb93xx_audio_device); |
31bb68a3 AS |
181 | } |
182 | } | |
183 | ||
184 | ||
1fbd972a HS |
185 | /************************************************************************* |
186 | * EDB93xx pwm | |
187 | *************************************************************************/ | |
188 | static void __init edb93xx_register_pwm(void) | |
189 | { | |
190 | if (machine_is_edb9301() || | |
191 | machine_is_edb9302() || machine_is_edb9302a()) { | |
192 | /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */ | |
193 | ep93xx_register_pwm(0, 1); | |
194 | } else if (machine_is_edb9307() || machine_is_edb9307a()) { | |
195 | /* EP9307 only has pwm.0 (PWMOUT) */ | |
196 | ep93xx_register_pwm(1, 0); | |
197 | } else { | |
198 | /* EP9312 and EP9315 have both */ | |
199 | ep93xx_register_pwm(1, 1); | |
200 | } | |
201 | } | |
202 | ||
203 | ||
13055192 HS |
204 | /************************************************************************* |
205 | * EDB93xx framebuffer | |
206 | *************************************************************************/ | |
207 | static struct ep93xxfb_mach_info __initdata edb93xxfb_info = { | |
13055192 HS |
208 | .flags = 0, |
209 | }; | |
210 | ||
211 | static int __init edb93xx_has_fb(void) | |
212 | { | |
213 | /* These platforms have an ep93xx with video capability */ | |
214 | return machine_is_edb9307() || machine_is_edb9307a() || | |
215 | machine_is_edb9312() || machine_is_edb9315() || | |
216 | machine_is_edb9315a(); | |
217 | } | |
218 | ||
219 | static void __init edb93xx_register_fb(void) | |
220 | { | |
221 | if (!edb93xx_has_fb()) | |
222 | return; | |
223 | ||
224 | if (machine_is_edb9307a() || machine_is_edb9315a()) | |
225 | edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0; | |
226 | else | |
227 | edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3; | |
228 | ||
229 | ep93xx_register_fb(&edb93xxfb_info); | |
230 | } | |
231 | ||
232 | ||
762be297 RP |
233 | /************************************************************************* |
234 | * EDB93xx IDE | |
235 | *************************************************************************/ | |
236 | static int __init edb93xx_has_ide(void) | |
237 | { | |
238 | /* | |
239 | * Although EDB9312 and EDB9315 do have IDE capability, they have | |
240 | * INTRQ line wired as pull-up, which makes using IDE interface | |
241 | * problematic. | |
242 | */ | |
243 | return machine_is_edb9312() || machine_is_edb9315() || | |
244 | machine_is_edb9315a(); | |
245 | } | |
246 | ||
247 | static void __init edb93xx_register_ide(void) | |
248 | { | |
249 | if (!edb93xx_has_ide()) | |
250 | return; | |
251 | ||
252 | ep93xx_register_ide(); | |
253 | } | |
254 | ||
255 | ||
a2bd40d2 HS |
256 | static void __init edb93xx_init_machine(void) |
257 | { | |
258 | ep93xx_init_devices(); | |
259 | edb93xx_register_flash(); | |
260 | ep93xx_register_eth(&edb93xx_eth_data, 1); | |
261 | edb93xx_register_i2c(); | |
31bb68a3 AS |
262 | edb93xx_register_spi(); |
263 | edb93xx_register_i2s(); | |
1fbd972a | 264 | edb93xx_register_pwm(); |
13055192 | 265 | edb93xx_register_fb(); |
762be297 | 266 | edb93xx_register_ide(); |
a2bd40d2 HS |
267 | } |
268 | ||
269 | ||
270 | #ifdef CONFIG_MACH_EDB9301 | |
271 | MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board") | |
272 | /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ | |
e562cf17 | 273 | .atag_offset = 0x100, |
a2bd40d2 HS |
274 | .map_io = ep93xx_map_io, |
275 | .init_irq = ep93xx_init_irq, | |
6bb27d73 | 276 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 277 | .init_machine = edb93xx_init_machine, |
c914283f | 278 | .init_late = ep93xx_init_late, |
3275166e | 279 | .restart = ep93xx_restart, |
a2bd40d2 HS |
280 | MACHINE_END |
281 | #endif | |
282 | ||
283 | #ifdef CONFIG_MACH_EDB9302 | |
284 | MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board") | |
285 | /* Maintainer: George Kashperko <george@chas.com.ua> */ | |
e562cf17 | 286 | .atag_offset = 0x100, |
a2bd40d2 HS |
287 | .map_io = ep93xx_map_io, |
288 | .init_irq = ep93xx_init_irq, | |
6bb27d73 | 289 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 290 | .init_machine = edb93xx_init_machine, |
c914283f | 291 | .init_late = ep93xx_init_late, |
3275166e | 292 | .restart = ep93xx_restart, |
a2bd40d2 HS |
293 | MACHINE_END |
294 | #endif | |
295 | ||
296 | #ifdef CONFIG_MACH_EDB9302A | |
297 | MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board") | |
298 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
e562cf17 | 299 | .atag_offset = 0x100, |
a2bd40d2 HS |
300 | .map_io = ep93xx_map_io, |
301 | .init_irq = ep93xx_init_irq, | |
6bb27d73 | 302 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 303 | .init_machine = edb93xx_init_machine, |
c914283f | 304 | .init_late = ep93xx_init_late, |
3275166e | 305 | .restart = ep93xx_restart, |
a2bd40d2 HS |
306 | MACHINE_END |
307 | #endif | |
308 | ||
309 | #ifdef CONFIG_MACH_EDB9307 | |
310 | MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board") | |
311 | /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ | |
e562cf17 | 312 | .atag_offset = 0x100, |
a2bd40d2 HS |
313 | .map_io = ep93xx_map_io, |
314 | .init_irq = ep93xx_init_irq, | |
6bb27d73 | 315 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 316 | .init_machine = edb93xx_init_machine, |
c914283f | 317 | .init_late = ep93xx_init_late, |
3275166e | 318 | .restart = ep93xx_restart, |
a2bd40d2 HS |
319 | MACHINE_END |
320 | #endif | |
321 | ||
322 | #ifdef CONFIG_MACH_EDB9307A | |
323 | MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board") | |
324 | /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ | |
e562cf17 | 325 | .atag_offset = 0x100, |
a2bd40d2 HS |
326 | .map_io = ep93xx_map_io, |
327 | .init_irq = ep93xx_init_irq, | |
6bb27d73 | 328 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 329 | .init_machine = edb93xx_init_machine, |
c914283f | 330 | .init_late = ep93xx_init_late, |
3275166e | 331 | .restart = ep93xx_restart, |
a2bd40d2 HS |
332 | MACHINE_END |
333 | #endif | |
334 | ||
335 | #ifdef CONFIG_MACH_EDB9312 | |
336 | MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board") | |
337 | /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */ | |
e562cf17 | 338 | .atag_offset = 0x100, |
a2bd40d2 HS |
339 | .map_io = ep93xx_map_io, |
340 | .init_irq = ep93xx_init_irq, | |
6bb27d73 | 341 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 342 | .init_machine = edb93xx_init_machine, |
c914283f | 343 | .init_late = ep93xx_init_late, |
3275166e | 344 | .restart = ep93xx_restart, |
a2bd40d2 HS |
345 | MACHINE_END |
346 | #endif | |
347 | ||
348 | #ifdef CONFIG_MACH_EDB9315 | |
349 | MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board") | |
350 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
e562cf17 | 351 | .atag_offset = 0x100, |
a2bd40d2 HS |
352 | .map_io = ep93xx_map_io, |
353 | .init_irq = ep93xx_init_irq, | |
6bb27d73 | 354 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 355 | .init_machine = edb93xx_init_machine, |
c914283f | 356 | .init_late = ep93xx_init_late, |
3275166e | 357 | .restart = ep93xx_restart, |
a2bd40d2 HS |
358 | MACHINE_END |
359 | #endif | |
360 | ||
361 | #ifdef CONFIG_MACH_EDB9315A | |
362 | MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board") | |
363 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
e562cf17 | 364 | .atag_offset = 0x100, |
a2bd40d2 HS |
365 | .map_io = ep93xx_map_io, |
366 | .init_irq = ep93xx_init_irq, | |
6bb27d73 | 367 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 368 | .init_machine = edb93xx_init_machine, |
c914283f | 369 | .init_late = ep93xx_init_late, |
3275166e | 370 | .restart = ep93xx_restart, |
a2bd40d2 HS |
371 | MACHINE_END |
372 | #endif |