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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> |
583ddafe | 40 | |
a2bd40d2 HS |
41 | #include <asm/mach-types.h> |
42 | #include <asm/mach/arch.h> | |
43 | ||
583ddafe | 44 | |
a2bd40d2 HS |
45 | static void __init edb93xx_register_flash(void) |
46 | { | |
47 | if (machine_is_edb9307() || machine_is_edb9312() || | |
48 | machine_is_edb9315()) { | |
16bcf78f | 49 | ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE, SZ_32M); |
a2bd40d2 | 50 | } else { |
16bcf78f | 51 | ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE, SZ_16M); |
a2bd40d2 HS |
52 | } |
53 | } | |
54 | ||
b370e082 | 55 | static struct ep93xx_eth_data __initdata edb93xx_eth_data = { |
a2bd40d2 HS |
56 | .phy_id = 1, |
57 | }; | |
58 | ||
6531a991 HS |
59 | |
60 | /************************************************************************* | |
61 | * EDB93xx i2c peripheral handling | |
62 | *************************************************************************/ | |
b370e082 | 63 | static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data = { |
6531a991 HS |
64 | .sda_pin = EP93XX_GPIO_LINE_EEDAT, |
65 | .sda_is_open_drain = 0, | |
66 | .scl_pin = EP93XX_GPIO_LINE_EECLK, | |
67 | .scl_is_open_drain = 0, | |
68 | .udelay = 0, /* default to 100 kHz */ | |
69 | .timeout = 0, /* default to 100 ms */ | |
70 | }; | |
71 | ||
72 | static struct i2c_board_info __initdata edb93xxa_i2c_board_info[] = { | |
a2bd40d2 HS |
73 | { |
74 | I2C_BOARD_INFO("isl1208", 0x6f), | |
75 | }, | |
76 | }; | |
77 | ||
6531a991 | 78 | static struct i2c_board_info __initdata edb93xx_i2c_board_info[] = { |
a2bd40d2 HS |
79 | { |
80 | I2C_BOARD_INFO("ds1337", 0x68), | |
81 | }, | |
82 | }; | |
83 | ||
84 | static void __init edb93xx_register_i2c(void) | |
85 | { | |
86 | if (machine_is_edb9302a() || machine_is_edb9307a() || | |
87 | machine_is_edb9315a()) { | |
6531a991 HS |
88 | ep93xx_register_i2c(&edb93xx_i2c_gpio_data, |
89 | edb93xxa_i2c_board_info, | |
90 | ARRAY_SIZE(edb93xxa_i2c_board_info)); | |
a2bd40d2 HS |
91 | } else if (machine_is_edb9307() || machine_is_edb9312() || |
92 | machine_is_edb9315()) { | |
3d977c01 | 93 | ep93xx_register_i2c(&edb93xx_i2c_gpio_data, |
6531a991 HS |
94 | edb93xx_i2c_board_info, |
95 | ARRAY_SIZE(edb93xx_i2c_board_info)); | |
a2bd40d2 HS |
96 | } |
97 | } | |
98 | ||
1fbd972a | 99 | |
31bb68a3 AS |
100 | /************************************************************************* |
101 | * EDB93xx SPI peripheral handling | |
102 | *************************************************************************/ | |
103 | static struct cs4271_platform_data edb93xx_cs4271_data = { | |
104 | .gpio_nreset = -EINVAL, /* filled in later */ | |
105 | }; | |
106 | ||
107 | static int edb93xx_cs4271_hw_setup(struct spi_device *spi) | |
108 | { | |
109 | return gpio_request_one(EP93XX_GPIO_LINE_EGPIO6, | |
110 | GPIOF_OUT_INIT_HIGH, spi->modalias); | |
111 | } | |
112 | ||
113 | static void edb93xx_cs4271_hw_cleanup(struct spi_device *spi) | |
114 | { | |
115 | gpio_free(EP93XX_GPIO_LINE_EGPIO6); | |
116 | } | |
117 | ||
118 | static void edb93xx_cs4271_hw_cs_control(struct spi_device *spi, int value) | |
119 | { | |
120 | gpio_set_value(EP93XX_GPIO_LINE_EGPIO6, value); | |
121 | } | |
122 | ||
123 | static struct ep93xx_spi_chip_ops edb93xx_cs4271_hw = { | |
124 | .setup = edb93xx_cs4271_hw_setup, | |
125 | .cleanup = edb93xx_cs4271_hw_cleanup, | |
126 | .cs_control = edb93xx_cs4271_hw_cs_control, | |
127 | }; | |
128 | ||
129 | static struct spi_board_info edb93xx_spi_board_info[] __initdata = { | |
130 | { | |
131 | .modalias = "cs4271", | |
132 | .platform_data = &edb93xx_cs4271_data, | |
133 | .controller_data = &edb93xx_cs4271_hw, | |
134 | .max_speed_hz = 6000000, | |
135 | .bus_num = 0, | |
136 | .chip_select = 0, | |
137 | .mode = SPI_MODE_3, | |
138 | }, | |
139 | }; | |
140 | ||
141 | static struct ep93xx_spi_info edb93xx_spi_info __initdata = { | |
142 | .num_chipselect = ARRAY_SIZE(edb93xx_spi_board_info), | |
143 | }; | |
144 | ||
145 | static void __init edb93xx_register_spi(void) | |
146 | { | |
147 | if (machine_is_edb9301() || machine_is_edb9302()) | |
148 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO1; | |
149 | else if (machine_is_edb9302a() || machine_is_edb9307a()) | |
150 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_H(2); | |
151 | else if (machine_is_edb9315a()) | |
152 | edb93xx_cs4271_data.gpio_nreset = EP93XX_GPIO_LINE_EGPIO14; | |
153 | ||
154 | ep93xx_register_spi(&edb93xx_spi_info, edb93xx_spi_board_info, | |
155 | ARRAY_SIZE(edb93xx_spi_board_info)); | |
156 | } | |
157 | ||
158 | ||
159 | /************************************************************************* | |
160 | * EDB93xx I2S | |
161 | *************************************************************************/ | |
162 | static int __init edb93xx_has_audio(void) | |
163 | { | |
164 | return (machine_is_edb9301() || machine_is_edb9302() || | |
165 | machine_is_edb9302a() || machine_is_edb9307a() || | |
166 | machine_is_edb9315a()); | |
167 | } | |
168 | ||
169 | static void __init edb93xx_register_i2s(void) | |
170 | { | |
171 | if (edb93xx_has_audio()) { | |
172 | ep93xx_register_i2s(); | |
173 | } | |
174 | } | |
175 | ||
176 | ||
1fbd972a HS |
177 | /************************************************************************* |
178 | * EDB93xx pwm | |
179 | *************************************************************************/ | |
180 | static void __init edb93xx_register_pwm(void) | |
181 | { | |
182 | if (machine_is_edb9301() || | |
183 | machine_is_edb9302() || machine_is_edb9302a()) { | |
184 | /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */ | |
185 | ep93xx_register_pwm(0, 1); | |
186 | } else if (machine_is_edb9307() || machine_is_edb9307a()) { | |
187 | /* EP9307 only has pwm.0 (PWMOUT) */ | |
188 | ep93xx_register_pwm(1, 0); | |
189 | } else { | |
190 | /* EP9312 and EP9315 have both */ | |
191 | ep93xx_register_pwm(1, 1); | |
192 | } | |
193 | } | |
194 | ||
195 | ||
13055192 HS |
196 | /************************************************************************* |
197 | * EDB93xx framebuffer | |
198 | *************************************************************************/ | |
199 | static struct ep93xxfb_mach_info __initdata edb93xxfb_info = { | |
200 | .num_modes = EP93XXFB_USE_MODEDB, | |
201 | .bpp = 16, | |
202 | .flags = 0, | |
203 | }; | |
204 | ||
205 | static int __init edb93xx_has_fb(void) | |
206 | { | |
207 | /* These platforms have an ep93xx with video capability */ | |
208 | return machine_is_edb9307() || machine_is_edb9307a() || | |
209 | machine_is_edb9312() || machine_is_edb9315() || | |
210 | machine_is_edb9315a(); | |
211 | } | |
212 | ||
213 | static void __init edb93xx_register_fb(void) | |
214 | { | |
215 | if (!edb93xx_has_fb()) | |
216 | return; | |
217 | ||
218 | if (machine_is_edb9307a() || machine_is_edb9315a()) | |
219 | edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN0; | |
220 | else | |
221 | edb93xxfb_info.flags |= EP93XXFB_USE_SDCSN3; | |
222 | ||
223 | ep93xx_register_fb(&edb93xxfb_info); | |
224 | } | |
225 | ||
226 | ||
a2bd40d2 HS |
227 | static void __init edb93xx_init_machine(void) |
228 | { | |
229 | ep93xx_init_devices(); | |
230 | edb93xx_register_flash(); | |
231 | ep93xx_register_eth(&edb93xx_eth_data, 1); | |
232 | edb93xx_register_i2c(); | |
31bb68a3 AS |
233 | edb93xx_register_spi(); |
234 | edb93xx_register_i2s(); | |
1fbd972a | 235 | edb93xx_register_pwm(); |
13055192 | 236 | edb93xx_register_fb(); |
a2bd40d2 HS |
237 | } |
238 | ||
239 | ||
240 | #ifdef CONFIG_MACH_EDB9301 | |
241 | MACHINE_START(EDB9301, "Cirrus Logic EDB9301 Evaluation Board") | |
242 | /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ | |
a2bd40d2 HS |
243 | .boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100, |
244 | .map_io = ep93xx_map_io, | |
245 | .init_irq = ep93xx_init_irq, | |
246 | .timer = &ep93xx_timer, | |
247 | .init_machine = edb93xx_init_machine, | |
248 | MACHINE_END | |
249 | #endif | |
250 | ||
251 | #ifdef CONFIG_MACH_EDB9302 | |
252 | MACHINE_START(EDB9302, "Cirrus Logic EDB9302 Evaluation Board") | |
253 | /* Maintainer: George Kashperko <george@chas.com.ua> */ | |
a2bd40d2 HS |
254 | .boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100, |
255 | .map_io = ep93xx_map_io, | |
256 | .init_irq = ep93xx_init_irq, | |
257 | .timer = &ep93xx_timer, | |
258 | .init_machine = edb93xx_init_machine, | |
259 | MACHINE_END | |
260 | #endif | |
261 | ||
262 | #ifdef CONFIG_MACH_EDB9302A | |
263 | MACHINE_START(EDB9302A, "Cirrus Logic EDB9302A Evaluation Board") | |
264 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
a2bd40d2 HS |
265 | .boot_params = EP93XX_SDCE0_PHYS_BASE + 0x100, |
266 | .map_io = ep93xx_map_io, | |
267 | .init_irq = ep93xx_init_irq, | |
268 | .timer = &ep93xx_timer, | |
269 | .init_machine = edb93xx_init_machine, | |
270 | MACHINE_END | |
271 | #endif | |
272 | ||
273 | #ifdef CONFIG_MACH_EDB9307 | |
274 | MACHINE_START(EDB9307, "Cirrus Logic EDB9307 Evaluation Board") | |
275 | /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */ | |
a2bd40d2 HS |
276 | .boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100, |
277 | .map_io = ep93xx_map_io, | |
278 | .init_irq = ep93xx_init_irq, | |
279 | .timer = &ep93xx_timer, | |
280 | .init_machine = edb93xx_init_machine, | |
281 | MACHINE_END | |
282 | #endif | |
283 | ||
284 | #ifdef CONFIG_MACH_EDB9307A | |
285 | MACHINE_START(EDB9307A, "Cirrus Logic EDB9307A Evaluation Board") | |
286 | /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */ | |
a2bd40d2 HS |
287 | .boot_params = EP93XX_SDCE0_PHYS_BASE + 0x100, |
288 | .map_io = ep93xx_map_io, | |
289 | .init_irq = ep93xx_init_irq, | |
290 | .timer = &ep93xx_timer, | |
291 | .init_machine = edb93xx_init_machine, | |
292 | MACHINE_END | |
293 | #endif | |
294 | ||
295 | #ifdef CONFIG_MACH_EDB9312 | |
296 | MACHINE_START(EDB9312, "Cirrus Logic EDB9312 Evaluation Board") | |
297 | /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */ | |
a2bd40d2 HS |
298 | .boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100, |
299 | .map_io = ep93xx_map_io, | |
300 | .init_irq = ep93xx_init_irq, | |
301 | .timer = &ep93xx_timer, | |
302 | .init_machine = edb93xx_init_machine, | |
303 | MACHINE_END | |
304 | #endif | |
305 | ||
306 | #ifdef CONFIG_MACH_EDB9315 | |
307 | MACHINE_START(EDB9315, "Cirrus Logic EDB9315 Evaluation Board") | |
308 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
a2bd40d2 HS |
309 | .boot_params = EP93XX_SDCE3_PHYS_BASE_SYNC + 0x100, |
310 | .map_io = ep93xx_map_io, | |
311 | .init_irq = ep93xx_init_irq, | |
312 | .timer = &ep93xx_timer, | |
313 | .init_machine = edb93xx_init_machine, | |
314 | MACHINE_END | |
315 | #endif | |
316 | ||
317 | #ifdef CONFIG_MACH_EDB9315A | |
318 | MACHINE_START(EDB9315A, "Cirrus Logic EDB9315A Evaluation Board") | |
319 | /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */ | |
a2bd40d2 HS |
320 | .boot_params = EP93XX_SDCE0_PHYS_BASE + 0x100, |
321 | .map_io = ep93xx_map_io, | |
322 | .init_irq = ep93xx_init_irq, | |
323 | .timer = &ep93xx_timer, | |
324 | .init_machine = edb93xx_init_machine, | |
325 | MACHINE_END | |
326 | #endif |