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/gpio.h>
31 #include <linux/i2c.h>
32 #include <linux/i2c-gpio.h>
33 #include <linux/spi/spi.h>
35 #include <sound/cs4271.h>
37 #include <mach/hardware.h>
39 #include <mach/ep93xx_spi.h>
41 #include <asm/mach-types.h>
42 #include <asm/mach/arch.h>
45 static void __init
edb93xx_register_flash(void)
47 if (machine_is_edb9307() || machine_is_edb9312() ||
48 machine_is_edb9315()) {
49 ep93xx_register_flash(4, EP93XX_CS6_PHYS_BASE
, SZ_32M
);
51 ep93xx_register_flash(2, EP93XX_CS6_PHYS_BASE
, SZ_16M
);
55 static struct ep93xx_eth_data __initdata edb93xx_eth_data
= {
60 /*************************************************************************
61 * EDB93xx i2c peripheral handling
62 *************************************************************************/
63 static struct i2c_gpio_platform_data __initdata edb93xx_i2c_gpio_data
= {
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 */
72 static struct i2c_board_info __initdata edb93xxa_i2c_board_info
[] = {
74 I2C_BOARD_INFO("isl1208", 0x6f),
78 static struct i2c_board_info __initdata edb93xx_i2c_board_info
[] = {
80 I2C_BOARD_INFO("ds1337", 0x68),
84 static void __init
edb93xx_register_i2c(void)
86 if (machine_is_edb9302a() || machine_is_edb9307a() ||
87 machine_is_edb9315a()) {
88 ep93xx_register_i2c(&edb93xx_i2c_gpio_data
,
89 edb93xxa_i2c_board_info
,
90 ARRAY_SIZE(edb93xxa_i2c_board_info
));
91 } else if (machine_is_edb9307() || machine_is_edb9312() ||
92 machine_is_edb9315()) {
93 ep93xx_register_i2c(&edb93xx_i2c_gpio_data
,
94 edb93xx_i2c_board_info
,
95 ARRAY_SIZE(edb93xx_i2c_board_info
));
100 /*************************************************************************
101 * EDB93xx SPI peripheral handling
102 *************************************************************************/
103 static struct cs4271_platform_data edb93xx_cs4271_data
= {
104 .gpio_nreset
= -EINVAL
, /* filled in later */
107 static int edb93xx_cs4271_hw_setup(struct spi_device
*spi
)
109 return gpio_request_one(EP93XX_GPIO_LINE_EGPIO6
,
110 GPIOF_OUT_INIT_HIGH
, spi
->modalias
);
113 static void edb93xx_cs4271_hw_cleanup(struct spi_device
*spi
)
115 gpio_free(EP93XX_GPIO_LINE_EGPIO6
);
118 static void edb93xx_cs4271_hw_cs_control(struct spi_device
*spi
, int value
)
120 gpio_set_value(EP93XX_GPIO_LINE_EGPIO6
, value
);
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
,
129 static struct spi_board_info edb93xx_spi_board_info
[] __initdata
= {
131 .modalias
= "cs4271",
132 .platform_data
= &edb93xx_cs4271_data
,
133 .controller_data
= &edb93xx_cs4271_hw
,
134 .max_speed_hz
= 6000000,
141 static struct ep93xx_spi_info edb93xx_spi_info __initdata
= {
142 .num_chipselect
= ARRAY_SIZE(edb93xx_spi_board_info
),
145 static void __init
edb93xx_register_spi(void)
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
;
154 ep93xx_register_spi(&edb93xx_spi_info
, edb93xx_spi_board_info
,
155 ARRAY_SIZE(edb93xx_spi_board_info
));
159 /*************************************************************************
161 *************************************************************************/
162 static struct platform_device edb93xx_audio_device
= {
163 .name
= "edb93xx-audio",
167 static int __init
edb93xx_has_audio(void)
169 return (machine_is_edb9301() || machine_is_edb9302() ||
170 machine_is_edb9302a() || machine_is_edb9307a() ||
171 machine_is_edb9315a());
174 static void __init
edb93xx_register_i2s(void)
176 if (edb93xx_has_audio()) {
177 ep93xx_register_i2s();
178 platform_device_register(&edb93xx_audio_device
);
183 /*************************************************************************
185 *************************************************************************/
186 static void __init
edb93xx_register_pwm(void)
188 if (machine_is_edb9301() ||
189 machine_is_edb9302() || machine_is_edb9302a()) {
190 /* EP9301 and EP9302 only have pwm.1 (EGPIO14) */
191 ep93xx_register_pwm(0, 1);
192 } else if (machine_is_edb9307() || machine_is_edb9307a()) {
193 /* EP9307 only has pwm.0 (PWMOUT) */
194 ep93xx_register_pwm(1, 0);
196 /* EP9312 and EP9315 have both */
197 ep93xx_register_pwm(1, 1);
202 /*************************************************************************
203 * EDB93xx framebuffer
204 *************************************************************************/
205 static struct ep93xxfb_mach_info __initdata edb93xxfb_info
= {
206 .num_modes
= EP93XXFB_USE_MODEDB
,
211 static int __init
edb93xx_has_fb(void)
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();
219 static void __init
edb93xx_register_fb(void)
221 if (!edb93xx_has_fb())
224 if (machine_is_edb9307a() || machine_is_edb9315a())
225 edb93xxfb_info
.flags
|= EP93XXFB_USE_SDCSN0
;
227 edb93xxfb_info
.flags
|= EP93XXFB_USE_SDCSN3
;
229 ep93xx_register_fb(&edb93xxfb_info
);
233 static void __init
edb93xx_init_machine(void)
235 ep93xx_init_devices();
236 edb93xx_register_flash();
237 ep93xx_register_eth(&edb93xx_eth_data
, 1);
238 edb93xx_register_i2c();
239 edb93xx_register_spi();
240 edb93xx_register_i2s();
241 edb93xx_register_pwm();
242 edb93xx_register_fb();
246 #ifdef CONFIG_MACH_EDB9301
247 MACHINE_START(EDB9301
, "Cirrus Logic EDB9301 Evaluation Board")
248 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
249 .boot_params
= EP93XX_SDCE3_PHYS_BASE_SYNC
+ 0x100,
250 .map_io
= ep93xx_map_io
,
251 .init_irq
= ep93xx_init_irq
,
252 .timer
= &ep93xx_timer
,
253 .init_machine
= edb93xx_init_machine
,
257 #ifdef CONFIG_MACH_EDB9302
258 MACHINE_START(EDB9302
, "Cirrus Logic EDB9302 Evaluation Board")
259 /* Maintainer: George Kashperko <george@chas.com.ua> */
260 .boot_params
= EP93XX_SDCE3_PHYS_BASE_SYNC
+ 0x100,
261 .map_io
= ep93xx_map_io
,
262 .init_irq
= ep93xx_init_irq
,
263 .timer
= &ep93xx_timer
,
264 .init_machine
= edb93xx_init_machine
,
268 #ifdef CONFIG_MACH_EDB9302A
269 MACHINE_START(EDB9302A
, "Cirrus Logic EDB9302A Evaluation Board")
270 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
271 .boot_params
= EP93XX_SDCE0_PHYS_BASE
+ 0x100,
272 .map_io
= ep93xx_map_io
,
273 .init_irq
= ep93xx_init_irq
,
274 .timer
= &ep93xx_timer
,
275 .init_machine
= edb93xx_init_machine
,
279 #ifdef CONFIG_MACH_EDB9307
280 MACHINE_START(EDB9307
, "Cirrus Logic EDB9307 Evaluation Board")
281 /* Maintainer: Herbert Valerio Riedel <hvr@gnu.org> */
282 .boot_params
= EP93XX_SDCE3_PHYS_BASE_SYNC
+ 0x100,
283 .map_io
= ep93xx_map_io
,
284 .init_irq
= ep93xx_init_irq
,
285 .timer
= &ep93xx_timer
,
286 .init_machine
= edb93xx_init_machine
,
290 #ifdef CONFIG_MACH_EDB9307A
291 MACHINE_START(EDB9307A
, "Cirrus Logic EDB9307A Evaluation Board")
292 /* Maintainer: H Hartley Sweeten <hsweeten@visionengravers.com> */
293 .boot_params
= EP93XX_SDCE0_PHYS_BASE
+ 0x100,
294 .map_io
= ep93xx_map_io
,
295 .init_irq
= ep93xx_init_irq
,
296 .timer
= &ep93xx_timer
,
297 .init_machine
= edb93xx_init_machine
,
301 #ifdef CONFIG_MACH_EDB9312
302 MACHINE_START(EDB9312
, "Cirrus Logic EDB9312 Evaluation Board")
303 /* Maintainer: Toufeeq Hussain <toufeeq_hussain@infosys.com> */
304 .boot_params
= EP93XX_SDCE3_PHYS_BASE_SYNC
+ 0x100,
305 .map_io
= ep93xx_map_io
,
306 .init_irq
= ep93xx_init_irq
,
307 .timer
= &ep93xx_timer
,
308 .init_machine
= edb93xx_init_machine
,
312 #ifdef CONFIG_MACH_EDB9315
313 MACHINE_START(EDB9315
, "Cirrus Logic EDB9315 Evaluation Board")
314 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
315 .boot_params
= EP93XX_SDCE3_PHYS_BASE_SYNC
+ 0x100,
316 .map_io
= ep93xx_map_io
,
317 .init_irq
= ep93xx_init_irq
,
318 .timer
= &ep93xx_timer
,
319 .init_machine
= edb93xx_init_machine
,
323 #ifdef CONFIG_MACH_EDB9315A
324 MACHINE_START(EDB9315A
, "Cirrus Logic EDB9315A Evaluation Board")
325 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
326 .boot_params
= EP93XX_SDCE0_PHYS_BASE
+ 0x100,
327 .map_io
= ep93xx_map_io
,
328 .init_irq
= ep93xx_init_irq
,
329 .timer
= &ep93xx_timer
,
330 .init_machine
= edb93xx_init_machine
,