2 * Copyright (C) 2009-2010 Eric Benard - eric@eukrea.com
4 * Based on pcm970-baseboard.c which is :
5 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
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.
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,
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>
31 #include <asm/mach/arch.h>
33 #include <mach/common.h>
34 #include <mach/iomux-mx27.h>
35 #include <mach/imxfb.h>
36 #include <mach/hardware.h>
40 #include <mach/audmux.h>
42 #include "devices-imx27.h"
45 static int eukrea_mbimx27_pins[] = {
57 #if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
99 #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
100 || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
102 PC17_PF_SSI4_RXD | GPIO_PUEN,
103 PC18_PF_SSI4_TXD | GPIO_PUEN,
108 static const uint32_t eukrea_mbimx27_keymap[] = {
111 KEY(1, 0, KEY_RIGHT),
115 static struct matrix_keymap_data eukrea_mbimx27_keymap_data = {
116 .keymap = eukrea_mbimx27_keymap,
117 .keymap_size = ARRAY_SIZE(eukrea_mbimx27_keymap),
120 static struct gpio_led gpio_leds[] = {
123 .default_trigger = "heartbeat",
125 .gpio = GPIO_PORTF | 16,
129 .default_trigger = "none",
131 .gpio = GPIO_PORTF | 19,
135 static struct gpio_led_platform_data gpio_led_info = {
137 .num_leds = ARRAY_SIZE(gpio_leds),
140 static struct platform_device leds_gpio = {
144 .platform_data = &gpio_led_info,
148 static struct imx_fb_videomode eukrea_mbimx27_modes[] = {
200 static struct imx_fb_platform_data eukrea_mbimx27_fb_data = {
201 .mode = eukrea_mbimx27_modes,
202 .num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),
209 static void eukrea_mbimx27_bl_set_intensity(int intensity)
212 gpio_direction_output(GPIO_PORTE | 5, 1);
214 gpio_direction_output(GPIO_PORTE | 5, 0);
217 static 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,
224 static struct platform_device eukrea_mbimx27_bl_dev = {
225 .name = "generic-bl",
228 .platform_data = &eukrea_mbimx27_bl_info,
232 static void eukrea_mbimx27_lcd_power_set(struct plat_lcd_data *pd,
236 gpio_direction_output(GPIO_PORTA | 25, 1);
238 gpio_direction_output(GPIO_PORTA | 25, 0);
241 static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = {
242 .set_power = eukrea_mbimx27_lcd_power_set,
245 static struct platform_device eukrea_mbimx27_lcd_powerdev = {
246 .name = "platform-lcd",
247 .dev.platform_data = &eukrea_mbimx27_lcd_power_data,
250 static const struct imxuart_platform_data uart_pdata __initconst = {
251 .flags = IMXUART_HAVE_RTSCTS,
254 #if defined(CONFIG_TOUCHSCREEN_ADS7846) \
255 || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
257 #define ADS7846_PENDOWN (GPIO_PORTD | 25)
259 static void ads7846_dev_init(void)
261 if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {
262 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
265 gpio_direction_input(ADS7846_PENDOWN);
268 static int ads7846_get_pendown_state(void)
270 return !gpio_get_value(ADS7846_PENDOWN);
273 static struct ads7846_platform_data ads7846_config __initdata = {
274 .get_pendown_state = ads7846_get_pendown_state,
279 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
280 static struct spi_board_info eukrea_mbimx27_spi_board_info[] __initdata = {
282 .modalias = "ads7846",
285 .max_speed_hz = 1500000,
286 .irq = IRQ_GPIOD(25),
287 .platform_data = &ads7846_config,
292 static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};
294 static 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),
300 static struct i2c_board_info eukrea_mbimx27_i2c_devices[] = {
302 I2C_BOARD_INFO("tlv320aic23", 0x1a),
306 static struct platform_device *platform_devices[] __initdata = {
310 static struct imxmmc_platform_data sdhc_pdata = {
311 .dat3_card_detect = 1,
314 struct imx_ssi_platform_data eukrea_mbimx27_ssi_pdata = {
315 .flags = IMX_SSI_DMA | IMX_SSI_USE_I2S_SLAVE,
319 * system init for baseboard usage. Will be called by cpuimx27 init.
321 * Add platform devices present on this baseboard and init
322 * them from CPU side as far as required to use them later on
324 void __init eukrea_mbimx27_baseboard_init(void)
326 mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,
327 ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");
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)
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)
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);
354 mxc_register_device(&mxc_fb_device, &eukrea_mbimx27_fb_data);
355 mxc_register_device(&mxc_sdhc_device0, &sdhc_pdata);
357 i2c_register_board_info(0, eukrea_mbimx27_i2c_devices,
358 ARRAY_SIZE(eukrea_mbimx27_i2c_devices));
360 mxc_register_device(&imx_ssi_device0, &eukrea_mbimx27_ssi_pdata);
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);
369 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
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));
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);
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);
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);
389 mxc_register_device(&imx_kpp_device, &eukrea_mbimx27_keymap_data);
391 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));