Commit a961bf38 authored by Eric Benard's avatar Eric Benard Committed by Sascha Hauer
Browse files

Add support for Eukrea's MBIMX27 



MBIMX27 is the evaluation board for CPUIMX27 and integrates : a
QVGA TFT, a SPI touchscreen controler, a SDCard connector wired to
SDHC1.

Signed-off-by: default avatarEric Benard <eric@eukrea.com>
Signed-off-by: default avatarSascha Hauer <s.hauer@pengutronix.de>
parent af5b1df7

arch/arm/mach-mx2/Kconfig

+14 −0
Original line number Diff line number Diff line
@@ -67,6 +67,20 @@ config MACH_EUKREA_CPUIMX27_USESDHC2 
	  This adds support for the internal SDHC2 used on CPUIMX27 used

	  for wifi or eMMC.



choice

	prompt "Baseboard"

	depends on MACH_EUKREA_CPUIMX27

	default MACH_EUKREA_MBIMX27_BASEBOARD



config MACH_EUKREA_MBIMX27_BASEBOARD

	prompt "Eukrea MBIMX27 development board"

	bool

	help

	  This adds board specific devices that can be found on Eukrea's

	  MBIMX27 evaluation board.



endchoice



config MACH_MX27_3DS

	bool "MX27PDK platform"

	depends on MACH_MX27

arch/arm/mach-mx2/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -18,3 +18,4 @@ obj-$(CONFIG_MACH_PCM970_BASEBOARD) += pcm970-baseboard.o 
obj-$(CONFIG_MACH_MX27_3DS) += mx27pdk.o

obj-$(CONFIG_MACH_MX27LITE) += mx27lite.o

obj-$(CONFIG_MACH_EUKREA_CPUIMX27) += eukrea_cpuimx27.o

obj-$(CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD) += eukrea_mbimx27-baseboard.o

arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c

0 → 100644
+249 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2009 Eric Benard - eric@eukrea.com

 *

 * Based on pcm970-baseboard.c which is :

 * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,

 * MA 02110-1301, USA.

 */



#include <linux/gpio.h>

#include <linux/irq.h>

#include <linux/platform_device.h>

#include <linux/spi/spi.h>

#include <linux/spi/ads7846.h>



#include <asm/mach/arch.h>



#include <mach/common.h>

#include <mach/iomux.h>

#include <mach/imxfb.h>

#include <mach/hardware.h>

#include <mach/mmc.h>

#include <mach/imx-uart.h>



#include "devices.h"



static int eukrea_mbimx27_pins[] = {

	/* UART2 */

	PE3_PF_UART2_CTS,

	PE4_PF_UART2_RTS,

	PE6_PF_UART2_TXD,

	PE7_PF_UART2_RXD,

	/* UART3 */

	PE8_PF_UART3_TXD,

	PE9_PF_UART3_RXD,

	PE10_PF_UART3_CTS,

	PE11_PF_UART3_RTS,

	/* UART4 */

	PB26_AF_UART4_RTS,

	PB28_AF_UART4_TXD,

	PB29_AF_UART4_CTS,

	PB31_AF_UART4_RXD,

	/* SDHC1*/

	PE18_PF_SD1_D0,

	PE19_PF_SD1_D1,

	PE20_PF_SD1_D2,

	PE21_PF_SD1_D3,

	PE22_PF_SD1_CMD,

	PE23_PF_SD1_CLK,

	/* display */

	PA5_PF_LSCLK,

	PA6_PF_LD0,

	PA7_PF_LD1,

	PA8_PF_LD2,

	PA9_PF_LD3,

	PA10_PF_LD4,

	PA11_PF_LD5,

	PA12_PF_LD6,

	PA13_PF_LD7,

	PA14_PF_LD8,

	PA15_PF_LD9,

	PA16_PF_LD10,

	PA17_PF_LD11,

	PA18_PF_LD12,

	PA19_PF_LD13,

	PA20_PF_LD14,

	PA21_PF_LD15,

	PA22_PF_LD16,

	PA23_PF_LD17,

	PA28_PF_HSYNC,

	PA29_PF_VSYNC,

	PA30_PF_CONTRAST,

	PA31_PF_OE_ACD,

	/* SPI1 */

	PD28_PF_CSPI1_SS0,

	PD29_PF_CSPI1_SCLK,

	PD30_PF_CSPI1_MISO,

	PD31_PF_CSPI1_MOSI,

};



static struct gpio_led gpio_leds[] = {

	{

		.name			= "led1",

		.default_trigger	= "heartbeat",

		.active_low		= 1,

		.gpio			= GPIO_PORTF | 16,

	},

	{

		.name			= "led2",

		.default_trigger	= "none",

		.active_low		= 1,

		.gpio			= GPIO_PORTF | 19,

	},

	{

		.name			= "backlight",

		.default_trigger	= "backlight",

		.active_low		= 0,

		.gpio			= GPIO_PORTE | 5,

	},

};



static struct gpio_led_platform_data gpio_led_info = {

	.leds		= gpio_leds,

	.num_leds	= ARRAY_SIZE(gpio_leds),

};



static struct platform_device leds_gpio = {

	.name	= "leds-gpio",

	.id	= -1,

	.dev	= {

		.platform_data	= &gpio_led_info,

	},

};



static struct imx_fb_videomode eukrea_mbimx27_modes[] = {

	{

		.mode = {

			.name		= "CMO-QGVA",

			.refresh	= 60,

			.xres		= 320,

			.yres		= 240,

			.pixclock	= 156000,

			.hsync_len	= 30,

			.left_margin	= 38,

			.right_margin	= 20,

			.vsync_len	= 3,

			.upper_margin	= 15,

			.lower_margin	= 4,

		},

		.pcr		= 0xFAD08B80,

		.bpp		= 16,

	},

};



static struct imx_fb_platform_data eukrea_mbimx27_fb_data = {

	.mode = eukrea_mbimx27_modes,

	.num_modes = ARRAY_SIZE(eukrea_mbimx27_modes),



	.pwmr		= 0x00A903FF,

	.lscr1		= 0x00120300,

	.dmacr		= 0x00040060,

};



static struct imxuart_platform_data uart_pdata[] = {

	{

		.flags = IMXUART_HAVE_RTSCTS,

	},

	{

		.flags = IMXUART_HAVE_RTSCTS,

	},

};



#if defined(CONFIG_TOUCHSCREEN_ADS7846)

	|| defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)



#define ADS7846_PENDOWN (GPIO_PORTD | 25)



static void ads7846_dev_init(void)

{

	if (gpio_request(ADS7846_PENDOWN, "ADS7846 pendown") < 0) {

		printk(KERN_ERR "can't get ads746 pen down GPIO\n");

		return;

	}



	gpio_direction_input(ADS7846_PENDOWN);

}



static int ads7846_get_pendown_state(void)

{

	return !gpio_get_value(ADS7846_PENDOWN);

}



static struct ads7846_platform_data ads7846_config __initdata = {

	.get_pendown_state	= ads7846_get_pendown_state,

	.keep_vref_on		= 1,

};



static struct spi_board_info eukrea_mbimx27_spi_board_info[] __initdata = {

	[0] = {

		.modalias	= "ads7846",

		.bus_num	= 0,

		.chip_select	= 0,

		.max_speed_hz	= 1500000,

		.irq		= IRQ_GPIOD(25),

		.platform_data	= &ads7846_config,

		.mode           = SPI_MODE_2,

	},

};



static int eukrea_mbimx27_spi_cs[] = {GPIO_PORTD | 28};



static struct spi_imx_master eukrea_mbimx27_spi_0_data = {

	.chipselect	= eukrea_mbimx27_spi_cs,

	.num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs),

};

#endif



static struct platform_device *platform_devices[] __initdata = {

	&leds_gpio,

};



/*

 * system init for baseboard usage. Will be called by cpuimx27 init.

 *

 * Add platform devices present on this baseboard and init

 * them from CPU side as far as required to use them later on

 */

void __init eukrea_mbimx27_baseboard_init(void)

{

	mxc_gpio_setup_multiple_pins(eukrea_mbimx27_pins,

		ARRAY_SIZE(eukrea_mbimx27_pins), "MBIMX27");



	mxc_register_device(&mxc_uart_device1, &uart_pdata[0]);

	mxc_register_device(&mxc_uart_device2, &uart_pdata[1]);



	mxc_register_device(&mxc_fb_device, &eukrea_mbimx27_fb_data);

	mxc_register_device(&mxc_sdhc_device0, NULL);



#if defined(CONFIG_TOUCHSCREEN_ADS7846)

	|| defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)

	/* SPI and ADS7846 Touchscreen controler init */

	mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);

	mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN);

	mxc_register_device(&mxc_spi_device0, &eukrea_mbimx27_spi_0_data);

	spi_register_board_info(eukrea_mbimx27_spi_board_info,

			ARRAY_SIZE(eukrea_mbimx27_spi_board_info));

	ads7846_dev_init();

#endif



	/* Leds configuration */

	mxc_gpio_mode(GPIO_PORTF | 16 | GPIO_GPIO | GPIO_OUT);

	mxc_gpio_mode(GPIO_PORTF | 19 | GPIO_GPIO | GPIO_OUT);

	/* Backlight */

	mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_OUT);



	platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));

}

arch/arm/plat-mxc/include/mach/board-eukrea_cpuimx27.h

+15 −0
Original line number Diff line number Diff line
@@ -22,4 +22,19 @@ 
#ifndef __ASM_ARCH_MXC_BOARD_EUKREA_CPUIMX27_H__

#define __ASM_ARCH_MXC_BOARD_EUKREA_CPUIMX27_H__



#ifndef __ASSEMBLY__

/*

 * This CPU module needs a baseboard to work. After basic initializing

 * its own devices, it calls baseboard's init function.

 * TODO: Add your own baseboard init function and call it from

 * inside eukrea_cpuimx27_init().

 *

 * This example here is for the development board. Refer

 * eukrea_mbimx27-baseboard.c

 */



extern void eukrea_mbimx27_baseboard_init(void);



#endif



#endif /* __ASM_ARCH_MXC_BOARD_EUKREA_CPUIMX27_H__ */