diff options
| -rw-r--r-- | arch/arm/mach-mx2/Kconfig | 14 | ||||
| -rw-r--r-- | arch/arm/mach-mx2/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-mx2/eukrea_mbimx27-baseboard.c | 249 | ||||
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/board-eukrea_cpuimx27.h | 15 |
4 files changed, 279 insertions, 0 deletions
diff --git a/arch/arm/mach-mx2/Kconfig b/arch/arm/mach-mx2/Kconfig index 2c2be3953d80..0c28a37bc14e 100644 --- a/arch/arm/mach-mx2/Kconfig +++ b/arch/arm/mach-mx2/Kconfig @@ -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 diff --git a/arch/arm/mach-mx2/Makefile b/arch/arm/mach-mx2/Makefile index e12490f670d3..8b6846c42262 100644 --- a/arch/arm/mach-mx2/Makefile +++ b/arch/arm/mach-mx2/Makefile @@ -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 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 000000000000..7382b6d27ee1 --- /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 91bcce654695..a1fd5830af48 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__ */ |