2 * arch/arm/mach-ep93xx/edb93xx.c
3 * Cirrus Logic EDB93xx Development Board support.
5 * EDB93XX, EDB9301, EDB9307A
6 * Copyright (C) 2008-2009 H Hartley Sweeten <hsweeten@visionengravers.com>
9 * Copyright (C) 2006 George Kashperko <george@chas.com.ua>
11 * EDB9302A, EDB9315, EDB9315A
12 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
15 * Copyright (C) 2007 Herbert Valerio Riedel <hvr@gnu.org>
18 * Copyright (C) 2006 Infosys Technologies Limited
19 * Toufeeq Hussain <toufeeq_hussain@infosys.com>
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.
27 #include <linux/kernel.h>
28 #include <linux/init.h>
29 #include <linux/platform_device.h>
30 #include <linux/i2c.h>
31 #include <linux/i2c-gpio.h>
32 #include <linux/spi/spi.h>
34 #include <sound/cs4271.h>
36 #include <mach/hardware.h>
37 #include <linux/platform_data/video-ep93xx.h>
38 #include <linux/platform_data/spi-ep93xx.h>
39 #include <mach/gpio-ep93xx.h>
41 #include <asm/mach-types.h>
42 #include <asm/mach/arch.h>
46 static void __init
edb93xx_register_flash(void)
48 if (machine_is_edb9307() || machine_is_edb9312() ||
49 machine_is_edb9315()) {
50 ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE
, SZ_32M
);
52 ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE
, SZ_16M
);
56 static struct ep93xx_eth_data __initdata edb93xx_eth_data
= {
61 /*************************************************************************
62 * EDB93xx i2c peripheral handling
63 *************************************************************************/
64 static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data
= {
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 */
73 static struct i2c_board_info __initdata edb93xxa_i2c_board_info
[] = {
75 I2C_BOARD_INFO("isl1208", 0x6f),
79 static struct i2c_board_info __initdata edb93xx_i2c_board_info
[] = {
81 I2C_BOARD_INFO("ds1337", 0x68),
85 static void __init
edb93xx_register_i2c(void)
87 if (machine_is_edb9302a() || machine_is_edb9307a() ||
88 machine_is_edb9315a()) {
89 ep93xx_register_i2c(&edb93xx_i2c_gpio_data
,
90 edb93xxa_i2c_board_info
,
91 ARRAY_SIZE(edb93xxa_i2c_board_info
));
92 } else if (machine_is_edb9302() || machine_is_edb9307()
93 || machine_is_edb9312() || machine_is_edb9315()) {
94 ep93xx_register_i2c(&edb93xx_i2c_gpio_data
,
95 edb93xx_i2c_board_info
,
96 ARRAY_SIZE(edb93xx_i2c_board_info
));
101 /*************************************************************************
102 * EDB93xx SPI peripheral handling
103 *************************************************************************/
104 static struct cs4271_platform_data edb93xx_cs4271_data
= {
105 .gpio_nreset
= -EINVAL
, /* filled in later */
108 static struct spi_board_info edb93xx_spi_board_info
[] __initdata
= {
110 .modalias
= "cs4271",
111 .platform_data
= &edb93xx_cs4271_data
,
112 .max_speed_hz
= 6000000,
119 static int edb93xx_spi_chipselects
[] __initdata
= {
120 EP93XX_GPIO_LINE_EGPIO6
,
123 static struct ep93xx_spi_info edb93xx_spi_info __initdata
= {
124 .chipselect
= edb93xx_spi_chipselects
,
125 .num_chipselect
= ARRAY_SIZE(edb93xx_spi_chipselects
),
128 static void __init
edb93xx_register_spi(void)
130 if (machine_is_edb9301() || machine_is_edb9302())
131 edb93xx_cs4271_data
.gpio_nreset
= EP93XX_GPIO_LINE_EGPIO1
;
132 else if (machine_is_edb9302a() || machine_is_edb9307a())
133 edb93xx_cs4271_data
.gpio_nreset
= EP93XX_GPIO_LINE_H(2);
134 else if (machine_is_edb9315a())
135 edb93xx_cs4271_data
.gpio_nreset
= EP93XX_GPIO_LINE_EGPIO14
;
137 ep93xx_register_spi(&edb93xx_spi_info
, edb93xx_spi_board_info
,
138 ARRAY_SIZE(edb93xx_spi_board_info
));
142 /*************************************************************************
144 *************************************************************************/
145 static struct platform_device edb93xx_audio_device
= {
146 .name
= "edb93xx-audio",
150 static int __init
edb93xx_has_audio(void)
152 return (machine_is_edb9301() || machine_is_edb9302() ||
153 machine_is_edb9302a() || machine_is_edb9307a() ||
154 machine_is_edb9315a());
157 static void __init
edb93xx_register_i2s(void)
159 if (edb93xx_has_audio()) {
160 ep93xx_register_i2s();
161 platform_device_register(&edb93xx_audio_device
);
166 /*************************************************************************
168 *************************************************************************/
169 static void __init
edb93xx_register_pwm(void)
171 if (machine_is_edb9301() ||
172 machine_is_edb9302() || machine_is_edb9302a()) {
173 /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
174 ep93xx_register_pwm(0, 1);
175 } else if (machine_is_edb9307() || machine_is_edb9307a()) {
176 /* EP9307 only has pwm.0 (PWMOUT) */
177 ep93xx_register_pwm(1, 0);
179 /* EP9312 and EP9315 have both */
180 ep93xx_register_pwm(1, 1);
185 /*************************************************************************
186 * EDB93xx framebuffer
187 *************************************************************************/
188 static struct ep93xxfb_mach_info __initdata edb93xxfb_info
= {
192 static int __init
edb93xx_has_fb(void)
194 /* These platforms have an ep93xx with video capability */
195 return machine_is_edb9307() || machine_is_edb9307a() ||
196 machine_is_edb9312() || machine_is_edb9315() ||
197 machine_is_edb9315a();
200 static void __init
edb93xx_register_fb(void)
202 if (!edb93xx_has_fb())
205 if (machine_is_edb9307a() || machine_is_edb9315a())
206 edb93xxfb_info
.flags
|= EP93XXFB_USE_SDCSN0
;
208 edb93xxfb_info
.flags
|= EP93XXFB_USE_SDCSN3
;
210 ep93xx_register_fb(&edb93xxfb_info
);
214 /*************************************************************************
216 *************************************************************************/
217 static int __init
edb93xx_has_ide(void)
220 * Although EDB9312 and EDB9315 do have IDE capability, they have
221 * INTRQ line wired as pull-up, which makes using IDE interface
224 return machine_is_edb9312() || machine_is_edb9315() ||
225 machine_is_edb9315a();
228 static void __init
edb93xx_register_ide(void)
230 if (!edb93xx_has_ide())
233 ep93xx_register_ide();
237 static void __init
edb93xx_init_machine(void)
239 ep93xx_init_devices();
240 edb93xx_register_flash();
241 ep93xx_register_eth(&edb93xx_eth_data
, 1);
242 edb93xx_register_i2c();
243 edb93xx_register_spi();
244 edb93xx_register_i2s();
245 edb93xx_register_pwm();
246 edb93xx_register_fb();
247 edb93xx_register_ide();
248 ep93xx_register_adc();
252 #ifdef CONFIG_MACH_EDB9301
253 MACHINE_START(EDB9301
, "Cirrus Logic EDB9301 Evaluation Board")
254 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
255 .atag_offset
= 0x100,
256 .map_io
= ep93xx_map_io
,
257 .init_irq
= ep93xx_init_irq
,
258 .init_time
= ep93xx_timer_init
,
259 .init_machine
= edb93xx_init_machine
,
260 .init_late
= ep93xx_init_late
,
261 .restart
= ep93xx_restart
,
265 #ifdef CONFIG_MACH_EDB9302
266 MACHINE_START(EDB9302
, "Cirrus Logic EDB9302 Evaluation Board")
267 /* Maintainer: George Kashperko <george@chas.com.ua> */
268 .atag_offset
= 0x100,
269 .map_io
= ep93xx_map_io
,
270 .init_irq
= ep93xx_init_irq
,
271 .init_time
= ep93xx_timer_init
,
272 .init_machine
= edb93xx_init_machine
,
273 .init_late
= ep93xx_init_late
,
274 .restart
= ep93xx_restart
,
278 #ifdef CONFIG_MACH_EDB9302A
279 MACHINE_START(EDB9302A
, "Cirrus Logic EDB9302A Evaluation Board")
280 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
281 .atag_offset
= 0x100,
282 .map_io
= ep93xx_map_io
,
283 .init_irq
= ep93xx_init_irq
,
284 .init_time
= ep93xx_timer_init
,
285 .init_machine
= edb93xx_init_machine
,
286 .init_late
= ep93xx_init_late
,
287 .restart
= ep93xx_restart
,
291 #ifdef CONFIG_MACH_EDB9307
292 MACHINE_START(EDB9307
, "Cirrus Logic EDB9307 Evaluation Board")
293 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
294 .atag_offset
= 0x100,
295 .map_io
= ep93xx_map_io
,
296 .init_irq
= ep93xx_init_irq
,
297 .init_time
= ep93xx_timer_init
,
298 .init_machine
= edb93xx_init_machine
,
299 .init_late
= ep93xx_init_late
,
300 .restart
= ep93xx_restart
,
304 #ifdef CONFIG_MACH_EDB9307A
305 MACHINE_START(EDB9307A
, "Cirrus Logic EDB9307A Evaluation Board")
306 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
307 .atag_offset
= 0x100,
308 .map_io
= ep93xx_map_io
,
309 .init_irq
= ep93xx_init_irq
,
310 .init_time
= ep93xx_timer_init
,
311 .init_machine
= edb93xx_init_machine
,
312 .init_late
= ep93xx_init_late
,
313 .restart
= ep93xx_restart
,
317 #ifdef CONFIG_MACH_EDB9312
318 MACHINE_START(EDB9312
, "Cirrus Logic EDB9312 Evaluation Board")
319 /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
320 .atag_offset
= 0x100,
321 .map_io
= ep93xx_map_io
,
322 .init_irq
= ep93xx_init_irq
,
323 .init_time
= ep93xx_timer_init
,
324 .init_machine
= edb93xx_init_machine
,
325 .init_late
= ep93xx_init_late
,
326 .restart
= ep93xx_restart
,
330 #ifdef CONFIG_MACH_EDB9315
331 MACHINE_START(EDB9315
, "Cirrus Logic EDB9315 Evaluation Board")
332 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
333 .atag_offset
= 0x100,
334 .map_io
= ep93xx_map_io
,
335 .init_irq
= ep93xx_init_irq
,
336 .init_time
= ep93xx_timer_init
,
337 .init_machine
= edb93xx_init_machine
,
338 .init_late
= ep93xx_init_late
,
339 .restart
= ep93xx_restart
,
343 #ifdef CONFIG_MACH_EDB9315A
344 MACHINE_START(EDB9315A
, "Cirrus Logic EDB9315A Evaluation Board")
345 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
346 .atag_offset
= 0x100,
347 .map_io
= ep93xx_map_io
,
348 .init_irq
= ep93xx_init_irq
,
349 .init_time
= ep93xx_timer_init
,
350 .init_machine
= edb93xx_init_machine
,
351 .init_late
= ep93xx_init_late
,
352 .restart
= ep93xx_restart
,