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: Eric Benard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx2/Kconfig b/arch/arm/mach-mx2/Kconfig
index 2c2be39..0c28a37 100644
--- a/arch/arm/mach-mx2/Kconfig
+++ b/arch/arm/mach-mx2/Kconfig
@@ -67,6 +67,20 @@
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
diff --git a/arch/arm/mach-mx2/Makefile b/arch/arm/mach-mx2/Makefile
index e12490f..8b6846c 100644
--- a/arch/arm/mach-mx2/Makefile
+++ b/arch/arm/mach-mx2/Makefile
@@ -18,3 +18,4 @@
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
diff --git a/arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c b/arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c
new file mode 100644
index 0000000..7382b6d
--- /dev/null
+++ b/arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c
@@ -0,0 +1,249 @@
+/*
+ * 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));
+}
diff --git a/arch/arm/plat-mxc/include/mach/board-eukrea_cpuimx27.h b/arch/arm/plat-mxc/include/mach/board-eukrea_cpuimx27.h
index 91bcce6..a1fd583 100644
--- a/arch/arm/plat-mxc/include/mach/board-eukrea_cpuimx27.h
+++ b/arch/arm/plat-mxc/include/mach/board-eukrea_cpuimx27.h
@@ -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__ */