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>
30 #include <asm/mach/arch.h>
32 #include <mach/common.h>
33 #include <mach/iomux-mx27.h>
34 #include <mach/hardware.h>
36 #include <mach/audmux.h>
38 #include "devices-imx27.h"
40 static const int eukrea_mbimx27_pins[] __initconst = {
52 #if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
94 #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
95 || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
97 PC17_PF_SSI4_RXD | GPIO_PUEN,
98 PC18_PF_SSI4_TXD | GPIO_PUEN,
103 static const uint32_t eukrea_mbimx27_keymap[] = {
106 KEY(1, 0, KEY_RIGHT),
110 static const struct matrix_keymap_data
111 eukrea_mbimx27_keymap_data __initconst = {
112 .keymap = eukrea_mbimx27_keymap,
113 .keymap_size = ARRAY_SIZE(eukrea_mbimx27_keymap),
116 static struct gpio_led gpio_leds[] = {
119 .default_trigger = "heartbeat",
121 .gpio = GPIO_PORTF | 16,
125 .default_trigger = "none",
127 .gpio = GPIO_PORTF | 19,
131 static struct gpio_led_platform_data gpio_led_info = {
133 .num_leds = ARRAY_SIZE(gpio_leds),
136 static struct platform_device leds_gpio = {
140 .platform_data = &gpio_led_info,
144 static struct imx_fb_videomode eukrea_mbimx27_modes[] = {
196 static const struct imx_fb_platform_data eukrea_mbimx27_fb_data __initconst = {
197 .mode = eukrea_mbimx27_modes,
198 .num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),
205 static void eukrea_mbimx27_bl_set_intensity(int intensity)
208 gpio_direction_output(GPIO_PORTE | 5, 1);
210 gpio_direction_output(GPIO_PORTE | 5, 0);
213 static struct generic_bl_info eukrea_mbimx27_bl_info = {
214 .name = "eukrea_mbimx27-bl",
215 .max_intensity = 0xff,
216 .default_intensity = 0xff,
217 .set_bl_intensity = eukrea_mbimx27_bl_set_intensity,
220 static struct platform_device eukrea_mbimx27_bl_dev = {
221 .name = "generic-bl",
224 .platform_data = &eukrea_mbimx27_bl_info,
228 static void eukrea_mbimx27_lcd_power_set(struct plat_lcd_data *pd,
232 gpio_direction_output(GPIO_PORTA | 25, 1);
234 gpio_direction_output(GPIO_PORTA | 25, 0);
237 static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = {
238 .set_power = eukrea_mbimx27_lcd_power_set,
241 static struct platform_device eukrea_mbimx27_lcd_powerdev = {
242 .name = "platform-lcd",
243 .dev.platform_data = &eukrea_mbimx27_lcd_power_data,
246 static const struct imxuart_platform_data uart_pdata __initconst = {
247 .flags = IMXUART_HAVE_RTSCTS,
250 #define ADS7846_PENDOWN (GPIO_PORTD | 25)
252 static void __maybe_unused ads7846_dev_init(void)
254 if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {
255 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
258 gpio_direction_input(ADS7846_PENDOWN);
261 static int ads7846_get_pendown_state(void)
263 return !gpio_get_value(ADS7846_PENDOWN);
266 static struct ads7846_platform_data ads7846_config __initdata = {
267 .get_pendown_state = ads7846_get_pendown_state,
271 static struct spi_board_info __maybe_unused
272 eukrea_mbimx27_spi_board_info[] __initdata = {
274 .modalias = "ads7846",
277 .max_speed_hz = 1500000,
278 .irq = IRQ_GPIOD(25),
279 .platform_data = &ads7846_config,
284 static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};
286 static const struct spi_imx_master eukrea_mbimx27_spi0_data __initconst = {
287 .chipselect = eukrea_mbimx27_spi_cs,
288 .num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs),
291 static struct i2c_board_info eukrea_mbimx27_i2c_devices[] = {
293 I2C_BOARD_INFO("tlv320aic23", 0x1a),
297 static struct platform_device *platform_devices[] __initdata = {
301 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
302 .dat3_card_detect = 1,
306 struct imx_ssi_platform_data eukrea_mbimx27_ssi_pdata __initconst = {
307 .flags = IMX_SSI_DMA | IMX_SSI_USE_I2S_SLAVE,
311 * system init for baseboard usage. Will be called by cpuimx27 init.
313 * Add platform devices present on this baseboard and init
314 * them from CPU side as far as required to use them later on
316 void __init eukrea_mbimx27_baseboard_init(void)
318 mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,
319 ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");
321 #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
322 || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
323 /* SSI unit master I2S codec connected to SSI_PINS_4*/
324 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
325 MXC_AUDMUX_V1_PCR_SYN |
326 MXC_AUDMUX_V1_PCR_TFSDIR |
327 MXC_AUDMUX_V1_PCR_TCLKDIR |
328 MXC_AUDMUX_V1_PCR_RFSDIR |
329 MXC_AUDMUX_V1_PCR_RCLKDIR |
330 MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
331 MXC_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
332 MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
334 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
335 MXC_AUDMUX_V1_PCR_SYN |
336 MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
340 imx27_add_imx_uart1(&uart_pdata);
341 imx27_add_imx_uart2(&uart_pdata);
342 #if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
343 imx27_add_imx_uart3(&uart_pdata);
346 imx27_add_imx_fb(&eukrea_mbimx27_fb_data);
347 imx27_add_mxc_mmc(0, &sdhc_pdata);
349 i2c_register_board_info(0, eukrea_mbimx27_i2c_devices,
350 ARRAY_SIZE(eukrea_mbimx27_i2c_devices));
352 imx27_add_imx_ssi(0, &eukrea_mbimx27_ssi_pdata);
354 #if defined(CONFIG_TOUCHSCREEN_ADS7846) \
355 || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
356 /* ADS7846 Touchscreen controller init */
357 mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN);
362 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
363 imx27_add_spi_imx0(&eukrea_mbimx27_spi0_data);
364 spi_register_board_info(eukrea_mbimx27_spi_board_info,
365 ARRAY_SIZE(eukrea_mbimx27_spi_board_info));
367 /* Leds configuration */
368 mxc_gpio_mode(GPIO_PORTF | 16 | GPIO_GPIO | GPIO_OUT);
369 mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);
371 mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);
372 gpio_request(GPIO_PORTE | 5, "backlight");
373 platform_device_register(&eukrea_mbimx27_bl_dev);
375 mxc_gpio_mode(GPIO_PORTA | 25 | GPIO_GPIO | GPIO_OUT);
376 gpio_request(GPIO_PORTA | 25, "lcd_enable");
377 platform_device_register(&eukrea_mbimx27_lcd_powerdev);
379 imx27_add_imx_keypad(&eukrea_mbimx27_keymap_data);
381 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));