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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> |
13055192 | 38 | #include <mach/fb.h> |
31bb68a3 | 39 | #include <mach/ep93xx_spi.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 | ||
583ddafe | 45 | |
a2bd40d2 HS |
46 | static 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); |
a2bd40d2 HS |
53 | } |
54 | } | |
55 | ||
b370e082 | 56 | static struct ep93xx_eth_data __initdata edb93xx_eth_data = { |
a2bd40d2 HS |
57 | .phy_id = 1, |
58 | }; | |
59 | ||
6531a991 HS |
60 | |
61 | /************************************************************************* | |
62 | * EDB93xx i2c peripheral handling | |
63 | *************************************************************************/ | |
b370e082 | 64 | static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data = { |
6531a991 HS |
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 | ||
73 | static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = { | |
a2bd40d2 HS |
74 | { |
75 | I2C_BOARD_INFO("isl1208", 0x6f), | |
76 | }, | |
77 | }; | |
78 | ||
6531a991 | 79 | static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = { |
a2bd40d2 HS |
80 | { |
81 | I2C_BOARD_INFO("ds1337", 0x68), | |
82 | }, | |
83 | }; | |
84 | ||
85 | static void __init edb93xx_register_i2c(void) | |
86 | { | |
87 | if (machine_is_edb9302a() || machine_is_edb9307a() || | |
88 | machine_is_edb9315a()) { | |
6531a991 HS |
89 | ep93xx_register_i2c(&edb93xx_i2c_gpio_data, |
90 | edb93xxa_i2c_board_info, | |
91 | ARRAY_SIZE(edb93xxa_i2c_board_info)); | |
a2bd40d2 HS |
92 | } else if (machine_is_edb9307() || machine_is_edb9312() || |
93 | machine_is_edb9315()) { | |
3d977c01 | 94 | ep93xx_register_i2c(&edb93xx_i2c_gpio_data, |
6531a991 HS |
95 | edb93xx_i2c_board_info, |
96 | ARRAY_SIZE(edb93xx_i2c_board_info)); | |
a2bd40d2 HS |
97 | } |
98 | } | |
99 | ||
1fbd972a | 100 | |
31bb68a3 AS |
101 | /************************************************************************* |
102 | * EDB93xx SPI peripheral handling | |
103 | *************************************************************************/ | |
104 | static struct cs4271_platform_data edb93xx_cs4271_data = { | |
105 | .gpio_nreset = -EINVAL, /* filled in later */ | |
106 | }; | |
107 | ||
108 | static int edb93xx_cs4271_hw_setup(struct spi_device *spi) | |
109 | { | |
110 | return gpio_request_one(EP93XX_GPIO_LINE_EGPIO6, | |
111 | GPIOF_OUT_INIT_HIGH, spi->modalias); | |
112 | } | |
113 | ||
114 | static void edb93xx_cs4271_hw_cleanup(struct spi_device *spi) | |
115 | { | |
116 | gpio_free(EP93XX_GPIO_LINE_EGPIO6); | |
117 | } | |
118 | ||
119 | static void edb93xx_cs4271_hw_cs_control(struct spi_device *spi, int value) | |
120 | { | |
121 | gpio_set_value(EP93XX_GPIO_LINE_EGPIO6, value); | |
122 | } | |
123 | ||
124 | static struct ep93xx_spi_chip_ops edb93xx_cs4271_hw = { | |
125 | .setup = edb93xx_cs4271_hw_setup, | |
126 | .cleanup = edb93xx_cs4271_hw_cleanup, | |
127 | .cs_control = edb93xx_cs4271_hw_cs_control, | |
128 | }; | |
129 | ||
130 | static struct spi_board_info edb93xx_spi_board_info[] __initdata = { | |
131 | { | |
132 | .modalias = "cs4271", | |
133 | .platform_data = &edb93xx_cs4271_data, | |
134 | .controller_data = &edb93xx_cs4271_hw, | |
135 | .max_speed_hz = 6000000, | |
136 | .bus_num = 0, | |
137 | .chip_select = 0, | |
138 | .mode = SPI_MODE_3, | |
139 | }, | |
140 | }; | |
141 | ||
142 | static struct ep93xx_spi_info edb93xx_spi_info __initdata = { | |
143 | .num_chipselect = ARRAY_SIZE(edb93xx_spi_board_info), | |
144 | }; | |
145 | ||
146 | static void __init edb93xx_register_spi(void) | |
147 | { | |
148 | if (machine_is_edb9301() || machine_is_edb9302()) | |
149 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1; | |
150 | else if (machine_is_edb9302a() || machine_is_edb9307a()) | |
151 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2); | |
152 | else if (machine_is_edb9315a()) | |
153 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14; | |
154 | ||
155 | ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info, | |
156 | ARRAY_SIZE(edb93xx_spi_board_info)); | |
157 | } | |
158 | ||
159 | ||
160 | /************************************************************************* | |
161 | * EDB93xx I2S | |
162 | *************************************************************************/ | |
075b20b0 MW |
163 | static struct platform_device edb93xx_audio_device = { |
164 | .name = "edb93xx-audio", | |
165 | .id = -1, | |
166 | }; | |
167 | ||
31bb68a3 AS |
168 | static int __init edb93xx_has_audio(void) |
169 | { | |
170 | return (machine_is_edb9301() || machine_is_edb9302() || | |
171 | machine_is_edb9302a() || machine_is_edb9307a() || | |
172 | machine_is_edb9315a()); | |
173 | } | |
174 | ||
175 | static void __init edb93xx_register_i2s(void) | |
176 | { | |
177 | if (edb93xx_has_audio()) { | |
178 | ep93xx_register_i2s(); | |
075b20b0 | 179 | platform_device_register(&edb93xx_audio_device); |
31bb68a3 AS |
180 | } |
181 | } | |
182 | ||
183 | ||
1fbd972a HS |
184 | /************************************************************************* |
185 | * EDB93xx pwm | |
186 | *************************************************************************/ | |
187 | static void __init edb93xx_register_pwm(void) | |
188 | { | |
189 | if (machine_is_edb9301() || | |
190 | machine_is_edb9302() || machine_is_edb9302a()) { | |
191 | /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */ | |
192 | ep93xx_register_pwm(0, 1); | |
193 | } else if (machine_is_edb9307() || machine_is_edb9307a()) { | |
194 | /* EP9307 only has pwm.0 (PWMOUT) */ | |
195 | ep93xx_register_pwm(1, 0); | |
196 | } else { | |
197 | /* EP9312 and EP9315 have both */ | |
198 | ep93xx_register_pwm(1, 1); | |
199 | } | |
200 | } | |
201 | ||
202 | ||
13055192 HS |
203 | /************************************************************************* |
204 | * EDB93xx framebuffer | |
205 | *************************************************************************/ | |
206 | static struct ep93xxfb_mach_info __initdata edb93xxfb_info = { | |
207 | .num_modes = EP93XXFB_USE_MODEDB, | |
208 | .bpp = 16, | |
209 | .flags = 0, | |
210 | }; | |
211 | ||
212 | static int __init edb93xx_has_fb(void) | |
213 | { | |
214 | /* These platforms have an ep93xx with video capability */ | |
215 | return machine_is_edb9307() || machine_is_edb9307a() || | |
216 | machine_is_edb9312() || machine_is_edb9315() || | |
217 | machine_is_edb9315a(); | |
218 | } | |
219 | ||
220 | static void __init edb93xx_register_fb(void) | |
221 | { | |
222 | if (!edb93xx_has_fb()) | |
223 | return; | |
224 | ||
225 | if (machine_is_edb9307a() || machine_is_edb9315a()) | |
226 | edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0; | |
227 | else | |
228 | edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3; | |
229 | ||
230 | ep93xx_register_fb(&edb93xxfb_info); | |
231 | } | |
232 | ||
233 | ||
a2bd40d2 HS |
234 | static void __init edb93xx_init_machine(void) |
235 | { | |
236 | ep93xx_init_devices(); | |
237 | edb93xx_register_flash(); | |
238 | ep93xx_register_eth(&edb93xx_eth_data, 1); | |
239 | edb93xx_register_i2c(); | |
31bb68a3 AS |
240 | edb93xx_register_spi(); |
241 | edb93xx_register_i2s(); | |
1fbd972a | 242 | edb93xx_register_pwm(); |
13055192 | 243 | edb93xx_register_fb(); |
a2bd40d2 HS |
244 | } |
245 | ||
246 | ||
247 | #ifdef CONFIG_MACH_EDB9301 | |
248 | MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board") | |
249 | /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ | |
e562cf17 | 250 | .atag_offset = 0x100, |
a2bd40d2 HS |
251 | .map_io = ep93xx_map_io, |
252 | .init_irq = ep93xx_init_irq, | |
253 | .timer = &ep93xx_timer, | |
254 | .init_machine = edb93xx_init_machine, | |
255 | MACHINE_END | |
256 | #endif | |
257 | ||
258 | #ifdef CONFIG_MACH_EDB9302 | |
259 | MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board") | |
260 | /* Maintainer: George Kashperko <george@chas.com.ua> */ | |
e562cf17 | 261 | .atag_offset = 0x100, |
a2bd40d2 HS |
262 | .map_io = ep93xx_map_io, |
263 | .init_irq = ep93xx_init_irq, | |
264 | .timer = &ep93xx_timer, | |
265 | .init_machine = edb93xx_init_machine, | |
266 | MACHINE_END | |
267 | #endif | |
268 | ||
269 | #ifdef CONFIG_MACH_EDB9302A | |
270 | MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board") | |
271 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
e562cf17 | 272 | .atag_offset = 0x100, |
a2bd40d2 HS |
273 | .map_io = ep93xx_map_io, |
274 | .init_irq = ep93xx_init_irq, | |
275 | .timer = &ep93xx_timer, | |
276 | .init_machine = edb93xx_init_machine, | |
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> */ | |
e562cf17 | 283 | .atag_offset = 0x100, |
a2bd40d2 HS |
284 | .map_io = ep93xx_map_io, |
285 | .init_irq = ep93xx_init_irq, | |
286 | .timer = &ep93xx_timer, | |
287 | .init_machine = edb93xx_init_machine, | |
288 | MACHINE_END | |
289 | #endif | |
290 | ||
291 | #ifdef CONFIG_MACH_EDB9307A | |
292 | MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board") | |
293 | /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ | |
e562cf17 | 294 | .atag_offset = 0x100, |
a2bd40d2 HS |
295 | .map_io = ep93xx_map_io, |
296 | .init_irq = ep93xx_init_irq, | |
297 | .timer = &ep93xx_timer, | |
298 | .init_machine = edb93xx_init_machine, | |
299 | MACHINE_END | |
300 | #endif | |
301 | ||
302 | #ifdef CONFIG_MACH_EDB9312 | |
303 | MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board") | |
304 | /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */ | |
e562cf17 | 305 | .atag_offset = 0x100, |
a2bd40d2 HS |
306 | .map_io = ep93xx_map_io, |
307 | .init_irq = ep93xx_init_irq, | |
308 | .timer = &ep93xx_timer, | |
309 | .init_machine = edb93xx_init_machine, | |
310 | MACHINE_END | |
311 | #endif | |
312 | ||
313 | #ifdef CONFIG_MACH_EDB9315 | |
314 | MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board") | |
315 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
e562cf17 | 316 | .atag_offset = 0x100, |
a2bd40d2 HS |
317 | .map_io = ep93xx_map_io, |
318 | .init_irq = ep93xx_init_irq, | |
319 | .timer = &ep93xx_timer, | |
320 | .init_machine = edb93xx_init_machine, | |
321 | MACHINE_END | |
322 | #endif | |
323 | ||
324 | #ifdef CONFIG_MACH_EDB9315A | |
325 | MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board") | |
326 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
e562cf17 | 327 | .atag_offset = 0x100, |
a2bd40d2 HS |
328 | .map_io = ep93xx_map_io, |
329 | .init_irq = ep93xx_init_irq, | |
330 | .timer = &ep93xx_timer, | |
331 | .init_machine = edb93xx_init_machine, | |
332 | MACHINE_END | |
333 | #endif |