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Diffstat (limited to 'arch/arm/mach-imx/eukrea_mbimx27-baseboard.c')
-rw-r--r--arch/arm/mach-imx/eukrea_mbimx27-baseboard.c392
1 files changed, 392 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/eukrea_mbimx27-baseboard.c b/arch/arm/mach-imx/eukrea_mbimx27-baseboard.c
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index 000000000000..4edc5f439201
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+++ b/arch/arm/mach-imx/eukrea_mbimx27-baseboard.c
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1/*
2 * Copyright (C) 2009-2010 Eric Benard - eric@eukrea.com
3 *
4 * Based on pcm970-baseboard.c which is :
5 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
19 * MA 02110-1301, USA.
20 */
21
22#include <linux/gpio.h>
23#include <linux/irq.h>
24#include <linux/platform_device.h>
25#include <linux/spi/spi.h>
26#include <linux/spi/ads7846.h>
27#include <linux/backlight.h>
28#include <video/platform_lcd.h>
29#include <linux/input/matrix_keypad.h>
30
31#include <asm/mach/arch.h>
32
33#include <mach/common.h>
34#include <mach/iomux-mx27.h>
35#include <mach/imxfb.h>
36#include <mach/hardware.h>
37#include <mach/mmc.h>
38#include <mach/spi.h>
39#include <mach/ssi.h>
40#include <mach/audmux.h>
41
42#include "devices-imx27.h"
43#include "devices.h"
44
45static int eukrea_mbimx27_pins[] = {
46 /* UART2 */
47 PE3_PF_UART2_CTS,
48 PE4_PF_UART2_RTS,
49 PE6_PF_UART2_TXD,
50 PE7_PF_UART2_RXD,
51 /* UART3 */
52 PE8_PF_UART3_TXD,
53 PE9_PF_UART3_RXD,
54 PE10_PF_UART3_CTS,
55 PE11_PF_UART3_RTS,
56 /* UART4 */
57#if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
58 PB26_AF_UART4_RTS,
59 PB28_AF_UART4_TXD,
60 PB29_AF_UART4_CTS,
61 PB31_AF_UART4_RXD,
62#endif
63 /* SDHC1*/
64 PE18_PF_SD1_D0,
65 PE19_PF_SD1_D1,
66 PE20_PF_SD1_D2,
67 PE21_PF_SD1_D3,
68 PE22_PF_SD1_CMD,
69 PE23_PF_SD1_CLK,
70 /* display */
71 PA5_PF_LSCLK,
72 PA6_PF_LD0,
73 PA7_PF_LD1,
74 PA8_PF_LD2,
75 PA9_PF_LD3,
76 PA10_PF_LD4,
77 PA11_PF_LD5,
78 PA12_PF_LD6,
79 PA13_PF_LD7,
80 PA14_PF_LD8,
81 PA15_PF_LD9,
82 PA16_PF_LD10,
83 PA17_PF_LD11,
84 PA18_PF_LD12,
85 PA19_PF_LD13,
86 PA20_PF_LD14,
87 PA21_PF_LD15,
88 PA22_PF_LD16,
89 PA23_PF_LD17,
90 PA28_PF_HSYNC,
91 PA29_PF_VSYNC,
92 PA30_PF_CONTRAST,
93 PA31_PF_OE_ACD,
94 /* SPI1 */
95 PD29_PF_CSPI1_SCLK,
96 PD30_PF_CSPI1_MISO,
97 PD31_PF_CSPI1_MOSI,
98 /* SSI4 */
99#if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
100 || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
101 PC16_PF_SSI4_FS,
102 PC17_PF_SSI4_RXD | GPIO_PUEN,
103 PC18_PF_SSI4_TXD | GPIO_PUEN,
104 PC19_PF_SSI4_CLK,
105#endif
106};
107
108static const uint32_t eukrea_mbimx27_keymap[] = {
109 KEY(0, 0, KEY_UP),
110 KEY(0, 1, KEY_DOWN),
111 KEY(1, 0, KEY_RIGHT),
112 KEY(1, 1, KEY_LEFT),
113};
114
115static struct matrix_keymap_data eukrea_mbimx27_keymap_data = {
116 .keymap = eukrea_mbimx27_keymap,
117 .keymap_size = ARRAY_SIZE(eukrea_mbimx27_keymap),
118};
119
120static struct gpio_led gpio_leds[] = {
121 {
122 .name = "led1",
123 .default_trigger = "heartbeat",
124 .active_low = 1,
125 .gpio = GPIO_PORTF | 16,
126 },
127 {
128 .name = "led2",
129 .default_trigger = "none",
130 .active_low = 1,
131 .gpio = GPIO_PORTF | 19,
132 },
133};
134
135static struct gpio_led_platform_data gpio_led_info = {
136 .leds = gpio_leds,
137 .num_leds = ARRAY_SIZE(gpio_leds),
138};
139
140static struct platform_device leds_gpio = {
141 .name = "leds-gpio",
142 .id = -1,
143 .dev = {
144 .platform_data = &gpio_led_info,
145 },
146};
147
148static struct imx_fb_videomode eukrea_mbimx27_modes[] = {
149 {
150 .mode = {
151 .name = "CMO-QVGA",
152 .refresh = 60,
153 .xres = 320,
154 .yres = 240,
155 .pixclock = 156000,
156 .hsync_len = 30,
157 .left_margin = 38,
158 .right_margin = 20,
159 .vsync_len = 3,
160 .upper_margin = 15,
161 .lower_margin = 4,
162 },
163 .pcr = 0xFAD08B80,
164 .bpp = 16,
165 }, {
166 .mode = {
167 .name = "DVI-VGA",
168 .refresh = 60,
169 .xres = 640,
170 .yres = 480,
171 .pixclock = 32000,
172 .hsync_len = 1,
173 .left_margin = 35,
174 .right_margin = 0,
175 .vsync_len = 1,
176 .upper_margin = 7,
177 .lower_margin = 0,
178 },
179 .pcr = 0xFA208B80,
180 .bpp = 16,
181 }, {
182 .mode = {
183 .name = "DVI-SVGA",
184 .refresh = 60,
185 .xres = 800,
186 .yres = 600,
187 .pixclock = 25000,
188 .hsync_len = 1,
189 .left_margin = 35,
190 .right_margin = 0,
191 .vsync_len = 1,
192 .upper_margin = 7,
193 .lower_margin = 0,
194 },
195 .pcr = 0xFA208B80,
196 .bpp = 16,
197 },
198};
199
200static struct imx_fb_platform_data eukrea_mbimx27_fb_data = {
201 .mode = eukrea_mbimx27_modes,
202 .num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),
203
204 .pwmr = 0x00A903FF,
205 .lscr1 = 0x00120300,
206 .dmacr = 0x00040060,
207};
208
209static void eukrea_mbimx27_bl_set_intensity(int intensity)
210{
211 if (intensity)
212 gpio_direction_output(GPIO_PORTE | 5, 1);
213 else
214 gpio_direction_output(GPIO_PORTE | 5, 0);
215}
216
217static struct generic_bl_info eukrea_mbimx27_bl_info = {
218 .name = "eukrea_mbimx27-bl",
219 .max_intensity = 0xff,
220 .default_intensity = 0xff,
221 .set_bl_intensity = eukrea_mbimx27_bl_set_intensity,
222};
223
224static struct platform_device eukrea_mbimx27_bl_dev = {
225 .name = "generic-bl",
226 .id = 1,
227 .dev = {
228 .platform_data = &eukrea_mbimx27_bl_info,
229 },
230};
231
232static void eukrea_mbimx27_lcd_power_set(struct plat_lcd_data *pd,
233 unsigned int power)
234{
235 if (power)
236 gpio_direction_output(GPIO_PORTA | 25, 1);
237 else
238 gpio_direction_output(GPIO_PORTA | 25, 0);
239}
240
241static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = {
242 .set_power = eukrea_mbimx27_lcd_power_set,
243};
244
245static struct platform_device eukrea_mbimx27_lcd_powerdev = {
246 .name = "platform-lcd",
247 .dev.platform_data = &eukrea_mbimx27_lcd_power_data,
248};
249
250static const struct imxuart_platform_data uart_pdata __initconst = {
251 .flags = IMXUART_HAVE_RTSCTS,
252};
253
254#if defined(CONFIG_TOUCHSCREEN_ADS7846) \
255 || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
256
257#define ADS7846_PENDOWN (GPIO_PORTD | 25)
258
259static void ads7846_dev_init(void)
260{
261 if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {
262 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
263 return;
264 }
265 gpio_direction_input(ADS7846_PENDOWN);
266}
267
268static int ads7846_get_pendown_state(void)
269{
270 return !gpio_get_value(ADS7846_PENDOWN);
271}
272
273static struct ads7846_platform_data ads7846_config __initdata = {
274 .get_pendown_state = ads7846_get_pendown_state,
275 .keep_vref_on = 1,
276};
277#endif
278
279#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
280static struct spi_board_info eukrea_mbimx27_spi_board_info[] __initdata = {
281 [0] = {
282 .modalias = "ads7846",
283 .bus_num = 0,
284 .chip_select = 0,
285 .max_speed_hz = 1500000,
286 .irq = IRQ_GPIOD(25),
287 .platform_data = &ads7846_config,
288 .mode = SPI_MODE_2,
289 },
290};
291
292static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};
293
294static const struct spi_imx_master eukrea_mbimx27_spi0_data __initconst = {
295 .chipselect = eukrea_mbimx27_spi_cs,
296 .num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs),
297};
298#endif
299
300static struct i2c_board_info eukrea_mbimx27_i2c_devices[] = {
301 {
302 I2C_BOARD_INFO("tlv320aic23", 0x1a),
303 },
304};
305
306static struct platform_device *platform_devices[] __initdata = {
307 &leds_gpio,
308};
309
310static struct imxmmc_platform_data sdhc_pdata = {
311 .dat3_card_detect = 1,
312};
313
314struct imx_ssi_platform_data eukrea_mbimx27_ssi_pdata = {
315 .flags = IMX_SSI_DMA | IMX_SSI_USE_I2S_SLAVE,
316};
317
318/*
319 * system init for baseboard usage. Will be called by cpuimx27 init.
320 *
321 * Add platform devices present on this baseboard and init
322 * them from CPU side as far as required to use them later on
323 */
324void __init eukrea_mbimx27_baseboard_init(void)
325{
326 mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,
327 ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");
328
329#if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
330 || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
331 /* SSI unit master I2S codec connected to SSI_PINS_4*/
332 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
333 MXC_AUDMUX_V1_PCR_SYN |
334 MXC_AUDMUX_V1_PCR_TFSDIR |
335 MXC_AUDMUX_V1_PCR_TCLKDIR |
336 MXC_AUDMUX_V1_PCR_RFSDIR |
337 MXC_AUDMUX_V1_PCR_RCLKDIR |
338 MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
339 MXC_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
340 MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
341 );
342 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
343 MXC_AUDMUX_V1_PCR_SYN |
344 MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
345 );
346#endif
347
348 imx27_add_imx_uart1(&uart_pdata);
349 imx27_add_imx_uart2(&uart_pdata);
350#if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
351 imx27_add_imx_uart3(&uart_pdata);
352#endif
353
354 mxc_register_device(&mxc_fb_device, &eukrea_mbimx27_fb_data);
355 mxc_register_device(&mxc_sdhc_device0, &sdhc_pdata);
356
357 i2c_register_board_info(0, eukrea_mbimx27_i2c_devices,
358 ARRAY_SIZE(eukrea_mbimx27_i2c_devices));
359
360 mxc_register_device(&imx_ssi_device0, &eukrea_mbimx27_ssi_pdata);
361
362#if defined(CONFIG_TOUCHSCREEN_ADS7846) \
363 || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
364 /* ADS7846 Touchscreen controller init */
365 mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN);
366 ads7846_dev_init();
367#endif
368
369#if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
370 /* SPI_CS0 init */
371 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
372 imx27_add_spi_imx0(&eukrea_mbimx27_spi0_data);
373 spi_register_board_info(eukrea_mbimx27_spi_board_info,
374 ARRAY_SIZE(eukrea_mbimx27_spi_board_info));
375#endif
376
377 /* Leds configuration */
378 mxc_gpio_mode(GPIO_PORTF | 16 | GPIO_GPIO | GPIO_OUT);
379 mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);
380 /* Backlight */
381 mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);
382 gpio_request(GPIO_PORTE | 5, "backlight");
383 platform_device_register(&eukrea_mbimx27_bl_dev);
384 /* LCD Reset */
385 mxc_gpio_mode(GPIO_PORTA | 25 | GPIO_GPIO | GPIO_OUT);
386 gpio_request(GPIO_PORTA | 25, "lcd_enable");
387 platform_device_register(&eukrea_mbimx27_lcd_powerdev);
388
389 mxc_register_device(&imx_kpp_device, &eukrea_mbimx27_keymap_data);
390
391 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
392}