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>
35 #include <mach/audmux.h>
37 #include "devices-imx27.h"
39 static const int eukrea_mbimx27_pins[] __initconst = {
51 #if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
93 #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
94 || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
96 PC17_PF_SSI4_RXD | GPIO_PUEN,
97 PC18_PF_SSI4_TXD | GPIO_PUEN,
102 static const uint32_t eukrea_mbimx27_keymap[] = {
105 KEY(1, 0, KEY_RIGHT),
109 static const struct matrix_keymap_data
110 eukrea_mbimx27_keymap_data __initconst = {
111 .keymap = eukrea_mbimx27_keymap,
112 .keymap_size = ARRAY_SIZE(eukrea_mbimx27_keymap),
115 static const struct gpio_led eukrea_mbimx27_gpio_leds[] __initconst = {
118 .default_trigger = "heartbeat",
120 .gpio = GPIO_PORTF | 16,
124 .default_trigger = "none",
126 .gpio = GPIO_PORTF | 19,
130 static const struct gpio_led_platform_data
131 eukrea_mbimx27_gpio_led_info __initconst = {
132 .leds = eukrea_mbimx27_gpio_leds,
133 .num_leds = ARRAY_SIZE(eukrea_mbimx27_gpio_leds),
136 static struct imx_fb_videomode eukrea_mbimx27_modes[] = {
188 static const struct imx_fb_platform_data eukrea_mbimx27_fb_data __initconst = {
189 .mode = eukrea_mbimx27_modes,
190 .num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),
197 static void eukrea_mbimx27_bl_set_intensity(int intensity)
200 gpio_direction_output(GPIO_PORTE | 5, 1);
202 gpio_direction_output(GPIO_PORTE | 5, 0);
205 static struct generic_bl_info eukrea_mbimx27_bl_info = {
206 .name = "eukrea_mbimx27-bl",
207 .max_intensity = 0xff,
208 .default_intensity = 0xff,
209 .set_bl_intensity = eukrea_mbimx27_bl_set_intensity,
212 static struct platform_device eukrea_mbimx27_bl_dev = {
213 .name = "generic-bl",
216 .platform_data = &eukrea_mbimx27_bl_info,
220 static void eukrea_mbimx27_lcd_power_set(struct plat_lcd_data *pd,
224 gpio_direction_output(GPIO_PORTA | 25, 1);
226 gpio_direction_output(GPIO_PORTA | 25, 0);
229 static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = {
230 .set_power = eukrea_mbimx27_lcd_power_set,
233 static struct platform_device eukrea_mbimx27_lcd_powerdev = {
234 .name = "platform-lcd",
235 .dev.platform_data = &eukrea_mbimx27_lcd_power_data,
238 static const struct imxuart_platform_data uart_pdata __initconst = {
239 .flags = IMXUART_HAVE_RTSCTS,
242 #define ADS7846_PENDOWN (GPIO_PORTD | 25)
244 static void __maybe_unused ads7846_dev_init(void)
246 if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {
247 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
250 gpio_direction_input(ADS7846_PENDOWN);
253 static int ads7846_get_pendown_state(void)
255 return !gpio_get_value(ADS7846_PENDOWN);
258 static struct ads7846_platform_data ads7846_config __initdata = {
259 .get_pendown_state = ads7846_get_pendown_state,
263 static struct spi_board_info __maybe_unused
264 eukrea_mbimx27_spi_board_info[] __initdata = {
266 .modalias = "ads7846",
269 .max_speed_hz = 1500000,
270 .irq = IRQ_GPIOD(25),
271 .platform_data = &ads7846_config,
276 static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};
278 static const struct spi_imx_master eukrea_mbimx27_spi0_data __initconst = {
279 .chipselect = eukrea_mbimx27_spi_cs,
280 .num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs),
283 static struct i2c_board_info eukrea_mbimx27_i2c_devices[] = {
285 I2C_BOARD_INFO("tlv320aic23", 0x1a),
289 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
290 .dat3_card_detect = 1,
294 struct imx_ssi_platform_data eukrea_mbimx27_ssi_pdata __initconst = {
295 .flags = IMX_SSI_DMA | IMX_SSI_USE_I2S_SLAVE,
299 * system init for baseboard usage. Will be called by cpuimx27 init.
301 * Add platform devices present on this baseboard and init
302 * them from CPU side as far as required to use them later on
304 void __init eukrea_mbimx27_baseboard_init(void)
306 mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,
307 ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");
309 #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \
310 || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE)
311 /* SSI unit master I2S codec connected to SSI_PINS_4*/
312 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
313 MXC_AUDMUX_V1_PCR_SYN |
314 MXC_AUDMUX_V1_PCR_TFSDIR |
315 MXC_AUDMUX_V1_PCR_TCLKDIR |
316 MXC_AUDMUX_V1_PCR_RFSDIR |
317 MXC_AUDMUX_V1_PCR_RCLKDIR |
318 MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
319 MXC_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
320 MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
322 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
323 MXC_AUDMUX_V1_PCR_SYN |
324 MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
328 imx27_add_imx_uart1(&uart_pdata);
329 imx27_add_imx_uart2(&uart_pdata);
330 #if !defined(MACH_EUKREA_CPUIMX27_USEUART4)
331 imx27_add_imx_uart3(&uart_pdata);
334 imx27_add_imx_fb(&eukrea_mbimx27_fb_data);
335 imx27_add_mxc_mmc(0, &sdhc_pdata);
337 i2c_register_board_info(0, eukrea_mbimx27_i2c_devices,
338 ARRAY_SIZE(eukrea_mbimx27_i2c_devices));
340 imx27_add_imx_ssi(0, &eukrea_mbimx27_ssi_pdata);
342 #if defined(CONFIG_TOUCHSCREEN_ADS7846) \
343 || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
344 /* ADS7846 Touchscreen controller init */
345 mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN);
350 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
351 imx27_add_spi_imx0(&eukrea_mbimx27_spi0_data);
352 spi_register_board_info(eukrea_mbimx27_spi_board_info,
353 ARRAY_SIZE(eukrea_mbimx27_spi_board_info));
355 /* Leds configuration */
356 mxc_gpio_mode(GPIO_PORTF | 16 | GPIO_GPIO | GPIO_OUT);
357 mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);
359 mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);
360 gpio_request(GPIO_PORTE | 5, "backlight");
361 platform_device_register(&eukrea_mbimx27_bl_dev);
363 mxc_gpio_mode(GPIO_PORTA | 25 | GPIO_GPIO | GPIO_OUT);
364 gpio_request(GPIO_PORTA | 25, "lcd_enable");
365 platform_device_register(&eukrea_mbimx27_lcd_powerdev);
367 imx27_add_imx_keypad(&eukrea_mbimx27_keymap_data);
369 gpio_led_register_device(-1, &eukrea_mbimx27_gpio_led_info);