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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 | |
9a6879bd | 42 | #include <asm/hardware/vic.h> |
a2bd40d2 HS |
43 | #include <asm/mach-types.h> |
44 | #include <asm/mach/arch.h> | |
45 | ||
258249ec | 46 | #include "soc.h" |
583ddafe | 47 | |
a2bd40d2 HS |
48 | static void __init edb93xx_register_flash(void) |
49 | { | |
50 | if (machine_is_edb9307() || machine_is_edb9312() || | |
51 | machine_is_edb9315()) { | |
16bcf78f | 52 | ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M); |
a2bd40d2 | 53 | } else { |
16bcf78f | 54 | ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M); |
a2bd40d2 HS |
55 | } |
56 | } | |
57 | ||
b370e082 | 58 | static struct ep93xx_eth_data __initdata edb93xx_eth_data = { |
a2bd40d2 HS |
59 | .phy_id = 1, |
60 | }; | |
61 | ||
6531a991 HS |
62 | |
63 | /************************************************************************* | |
64 | * EDB93xx i2c peripheral handling | |
65 | *************************************************************************/ | |
b370e082 | 66 | static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data = { |
6531a991 HS |
67 | .sda_pin = EP93XX_GPIO_LINE_EEDAT, |
68 | .sda_is_open_drain = 0, | |
69 | .scl_pin = EP93XX_GPIO_LINE_EECLK, | |
70 | .scl_is_open_drain = 0, | |
71 | .udelay = 0, /* default to 100 kHz */ | |
72 | .timeout = 0, /* default to 100 ms */ | |
73 | }; | |
74 | ||
75 | static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = { | |
a2bd40d2 HS |
76 | { |
77 | I2C_BOARD_INFO("isl1208", 0x6f), | |
78 | }, | |
79 | }; | |
80 | ||
6531a991 | 81 | static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = { |
a2bd40d2 HS |
82 | { |
83 | I2C_BOARD_INFO("ds1337", 0x68), | |
84 | }, | |
85 | }; | |
86 | ||
87 | static void __init edb93xx_register_i2c(void) | |
88 | { | |
89 | if (machine_is_edb9302a() || machine_is_edb9307a() || | |
90 | machine_is_edb9315a()) { | |
6531a991 HS |
91 | ep93xx_register_i2c(&edb93xx_i2c_gpio_data, |
92 | edb93xxa_i2c_board_info, | |
93 | ARRAY_SIZE(edb93xxa_i2c_board_info)); | |
688df8f0 TC |
94 | } else if (machine_is_edb9302() || machine_is_edb9307() |
95 | || machine_is_edb9312() || machine_is_edb9315()) { | |
3d977c01 | 96 | ep93xx_register_i2c(&edb93xx_i2c_gpio_data, |
6531a991 HS |
97 | edb93xx_i2c_board_info, |
98 | ARRAY_SIZE(edb93xx_i2c_board_info)); | |
a2bd40d2 HS |
99 | } |
100 | } | |
101 | ||
1fbd972a | 102 | |
31bb68a3 AS |
103 | /************************************************************************* |
104 | * EDB93xx SPI peripheral handling | |
105 | *************************************************************************/ | |
106 | static struct cs4271_platform_data edb93xx_cs4271_data = { | |
107 | .gpio_nreset = -EINVAL, /* filled in later */ | |
108 | }; | |
109 | ||
110 | static int edb93xx_cs4271_hw_setup(struct spi_device *spi) | |
111 | { | |
112 | return gpio_request_one(EP93XX_GPIO_LINE_EGPIO6, | |
113 | GPIOF_OUT_INIT_HIGH, spi->modalias); | |
114 | } | |
115 | ||
116 | static void edb93xx_cs4271_hw_cleanup(struct spi_device *spi) | |
117 | { | |
118 | gpio_free(EP93XX_GPIO_LINE_EGPIO6); | |
119 | } | |
120 | ||
121 | static void edb93xx_cs4271_hw_cs_control(struct spi_device *spi, int value) | |
122 | { | |
123 | gpio_set_value(EP93XX_GPIO_LINE_EGPIO6, value); | |
124 | } | |
125 | ||
126 | static struct ep93xx_spi_chip_ops edb93xx_cs4271_hw = { | |
127 | .setup = edb93xx_cs4271_hw_setup, | |
128 | .cleanup = edb93xx_cs4271_hw_cleanup, | |
129 | .cs_control = edb93xx_cs4271_hw_cs_control, | |
130 | }; | |
131 | ||
132 | static struct spi_board_info edb93xx_spi_board_info[] __initdata = { | |
133 | { | |
134 | .modalias = "cs4271", | |
135 | .platform_data = &edb93xx_cs4271_data, | |
136 | .controller_data = &edb93xx_cs4271_hw, | |
137 | .max_speed_hz = 6000000, | |
138 | .bus_num = 0, | |
139 | .chip_select = 0, | |
140 | .mode = SPI_MODE_3, | |
141 | }, | |
142 | }; | |
143 | ||
144 | static struct ep93xx_spi_info edb93xx_spi_info __initdata = { | |
145 | .num_chipselect = ARRAY_SIZE(edb93xx_spi_board_info), | |
146 | }; | |
147 | ||
148 | static void __init edb93xx_register_spi(void) | |
149 | { | |
150 | if (machine_is_edb9301() || machine_is_edb9302()) | |
151 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1; | |
152 | else if (machine_is_edb9302a() || machine_is_edb9307a()) | |
153 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2); | |
154 | else if (machine_is_edb9315a()) | |
155 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14; | |
156 | ||
157 | ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info, | |
158 | ARRAY_SIZE(edb93xx_spi_board_info)); | |
159 | } | |
160 | ||
161 | ||
162 | /************************************************************************* | |
163 | * EDB93xx I2S | |
164 | *************************************************************************/ | |
075b20b0 MW |
165 | static struct platform_device edb93xx_audio_device = { |
166 | .name = "edb93xx-audio", | |
167 | .id = -1, | |
168 | }; | |
169 | ||
31bb68a3 AS |
170 | static int __init edb93xx_has_audio(void) |
171 | { | |
172 | return (machine_is_edb9301() || machine_is_edb9302() || | |
173 | machine_is_edb9302a() || machine_is_edb9307a() || | |
174 | machine_is_edb9315a()); | |
175 | } | |
176 | ||
177 | static void __init edb93xx_register_i2s(void) | |
178 | { | |
179 | if (edb93xx_has_audio()) { | |
180 | ep93xx_register_i2s(); | |
075b20b0 | 181 | platform_device_register(&edb93xx_audio_device); |
31bb68a3 AS |
182 | } |
183 | } | |
184 | ||
185 | ||
1fbd972a HS |
186 | /************************************************************************* |
187 | * EDB93xx pwm | |
188 | *************************************************************************/ | |
189 | static void __init edb93xx_register_pwm(void) | |
190 | { | |
191 | if (machine_is_edb9301() || | |
192 | machine_is_edb9302() || machine_is_edb9302a()) { | |
193 | /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */ | |
194 | ep93xx_register_pwm(0, 1); | |
195 | } else if (machine_is_edb9307() || machine_is_edb9307a()) { | |
196 | /* EP9307 only has pwm.0 (PWMOUT) */ | |
197 | ep93xx_register_pwm(1, 0); | |
198 | } else { | |
199 | /* EP9312 and EP9315 have both */ | |
200 | ep93xx_register_pwm(1, 1); | |
201 | } | |
202 | } | |
203 | ||
204 | ||
13055192 HS |
205 | /************************************************************************* |
206 | * EDB93xx framebuffer | |
207 | *************************************************************************/ | |
208 | static struct ep93xxfb_mach_info __initdata edb93xxfb_info = { | |
209 | .num_modes = EP93XXFB_USE_MODEDB, | |
210 | .bpp = 16, | |
211 | .flags = 0, | |
212 | }; | |
213 | ||
214 | static int __init edb93xx_has_fb(void) | |
215 | { | |
216 | /* These platforms have an ep93xx with video capability */ | |
217 | return machine_is_edb9307() || machine_is_edb9307a() || | |
218 | machine_is_edb9312() || machine_is_edb9315() || | |
219 | machine_is_edb9315a(); | |
220 | } | |
221 | ||
222 | static void __init edb93xx_register_fb(void) | |
223 | { | |
224 | if (!edb93xx_has_fb()) | |
225 | return; | |
226 | ||
227 | if (machine_is_edb9307a() || machine_is_edb9315a()) | |
228 | edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0; | |
229 | else | |
230 | edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3; | |
231 | ||
232 | ep93xx_register_fb(&edb93xxfb_info); | |
233 | } | |
234 | ||
235 | ||
762be297 RP |
236 | /************************************************************************* |
237 | * EDB93xx IDE | |
238 | *************************************************************************/ | |
239 | static int __init edb93xx_has_ide(void) | |
240 | { | |
241 | /* | |
242 | * Although EDB9312 and EDB9315 do have IDE capability, they have | |
243 | * INTRQ line wired as pull-up, which makes using IDE interface | |
244 | * problematic. | |
245 | */ | |
246 | return machine_is_edb9312() || machine_is_edb9315() || | |
247 | machine_is_edb9315a(); | |
248 | } | |
249 | ||
250 | static void __init edb93xx_register_ide(void) | |
251 | { | |
252 | if (!edb93xx_has_ide()) | |
253 | return; | |
254 | ||
255 | ep93xx_register_ide(); | |
256 | } | |
257 | ||
258 | ||
a2bd40d2 HS |
259 | static void __init edb93xx_init_machine(void) |
260 | { | |
261 | ep93xx_init_devices(); | |
262 | edb93xx_register_flash(); | |
263 | ep93xx_register_eth(&edb93xx_eth_data, 1); | |
264 | edb93xx_register_i2c(); | |
31bb68a3 AS |
265 | edb93xx_register_spi(); |
266 | edb93xx_register_i2s(); | |
1fbd972a | 267 | edb93xx_register_pwm(); |
13055192 | 268 | edb93xx_register_fb(); |
762be297 | 269 | edb93xx_register_ide(); |
a2bd40d2 HS |
270 | } |
271 | ||
272 | ||
273 | #ifdef CONFIG_MACH_EDB9301 | |
274 | MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board") | |
275 | /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ | |
e562cf17 | 276 | .atag_offset = 0x100, |
a2bd40d2 HS |
277 | .map_io = ep93xx_map_io, |
278 | .init_irq = ep93xx_init_irq, | |
9a6879bd | 279 | .handle_irq = vic_handle_irq, |
6bb27d73 | 280 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 281 | .init_machine = edb93xx_init_machine, |
c914283f | 282 | .init_late = ep93xx_init_late, |
3275166e | 283 | .restart = ep93xx_restart, |
a2bd40d2 HS |
284 | MACHINE_END |
285 | #endif | |
286 | ||
287 | #ifdef CONFIG_MACH_EDB9302 | |
288 | MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board") | |
289 | /* Maintainer: George Kashperko <george@chas.com.ua> */ | |
e562cf17 | 290 | .atag_offset = 0x100, |
a2bd40d2 HS |
291 | .map_io = ep93xx_map_io, |
292 | .init_irq = ep93xx_init_irq, | |
9a6879bd | 293 | .handle_irq = vic_handle_irq, |
6bb27d73 | 294 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 295 | .init_machine = edb93xx_init_machine, |
c914283f | 296 | .init_late = ep93xx_init_late, |
3275166e | 297 | .restart = ep93xx_restart, |
a2bd40d2 HS |
298 | MACHINE_END |
299 | #endif | |
300 | ||
301 | #ifdef CONFIG_MACH_EDB9302A | |
302 | MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board") | |
303 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
e562cf17 | 304 | .atag_offset = 0x100, |
a2bd40d2 HS |
305 | .map_io = ep93xx_map_io, |
306 | .init_irq = ep93xx_init_irq, | |
9a6879bd | 307 | .handle_irq = vic_handle_irq, |
6bb27d73 | 308 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 309 | .init_machine = edb93xx_init_machine, |
c914283f | 310 | .init_late = ep93xx_init_late, |
3275166e | 311 | .restart = ep93xx_restart, |
a2bd40d2 HS |
312 | MACHINE_END |
313 | #endif | |
314 | ||
315 | #ifdef CONFIG_MACH_EDB9307 | |
316 | MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board") | |
317 | /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ | |
e562cf17 | 318 | .atag_offset = 0x100, |
a2bd40d2 HS |
319 | .map_io = ep93xx_map_io, |
320 | .init_irq = ep93xx_init_irq, | |
9a6879bd | 321 | .handle_irq = vic_handle_irq, |
6bb27d73 | 322 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 323 | .init_machine = edb93xx_init_machine, |
c914283f | 324 | .init_late = ep93xx_init_late, |
3275166e | 325 | .restart = ep93xx_restart, |
a2bd40d2 HS |
326 | MACHINE_END |
327 | #endif | |
328 | ||
329 | #ifdef CONFIG_MACH_EDB9307A | |
330 | MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board") | |
331 | /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ | |
e562cf17 | 332 | .atag_offset = 0x100, |
a2bd40d2 HS |
333 | .map_io = ep93xx_map_io, |
334 | .init_irq = ep93xx_init_irq, | |
9a6879bd | 335 | .handle_irq = vic_handle_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, |
a2bd40d2 HS |
340 | MACHINE_END |
341 | #endif | |
342 | ||
343 | #ifdef CONFIG_MACH_EDB9312 | |
344 | MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board") | |
345 | /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */ | |
e562cf17 | 346 | .atag_offset = 0x100, |
a2bd40d2 HS |
347 | .map_io = ep93xx_map_io, |
348 | .init_irq = ep93xx_init_irq, | |
9a6879bd | 349 | .handle_irq = vic_handle_irq, |
6bb27d73 | 350 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 351 | .init_machine = edb93xx_init_machine, |
c914283f | 352 | .init_late = ep93xx_init_late, |
3275166e | 353 | .restart = ep93xx_restart, |
a2bd40d2 HS |
354 | MACHINE_END |
355 | #endif | |
356 | ||
357 | #ifdef CONFIG_MACH_EDB9315 | |
358 | MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board") | |
359 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
e562cf17 | 360 | .atag_offset = 0x100, |
a2bd40d2 HS |
361 | .map_io = ep93xx_map_io, |
362 | .init_irq = ep93xx_init_irq, | |
9a6879bd | 363 | .handle_irq = vic_handle_irq, |
6bb27d73 | 364 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 365 | .init_machine = edb93xx_init_machine, |
c914283f | 366 | .init_late = ep93xx_init_late, |
3275166e | 367 | .restart = ep93xx_restart, |
a2bd40d2 HS |
368 | MACHINE_END |
369 | #endif | |
370 | ||
371 | #ifdef CONFIG_MACH_EDB9315A | |
372 | MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board") | |
373 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
e562cf17 | 374 | .atag_offset = 0x100, |
a2bd40d2 HS |
375 | .map_io = ep93xx_map_io, |
376 | .init_irq = ep93xx_init_irq, | |
9a6879bd | 377 | .handle_irq = vic_handle_irq, |
6bb27d73 | 378 | .init_time = ep93xx_timer_init, |
a2bd40d2 | 379 | .init_machine = edb93xx_init_machine, |
c914283f | 380 | .init_late = ep93xx_init_late, |
3275166e | 381 | .restart = ep93xx_restart, |
a2bd40d2 HS |
382 | MACHINE_END |
383 | #endif |