|  | /* | 
|  | * Copyright (C) 2009-2010 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 <linux/backlight.h> | 
|  | #include <video/platform_lcd.h> | 
|  |  | 
|  | #include <asm/mach/arch.h> | 
|  |  | 
|  | #include <mach/common.h> | 
|  | #include <mach/iomux-mx27.h> | 
|  | #include <mach/hardware.h> | 
|  | #include <mach/spi.h> | 
|  | #include <mach/audmux.h> | 
|  |  | 
|  | #include "devices-imx27.h" | 
|  |  | 
|  | static const int eukrea_mbimx27_pins[] __initconst = { | 
|  | /* 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 */ | 
|  | #if !defined(MACH_EUKREA_CPUIMX27_USEUART4) | 
|  | PB26_AF_UART4_RTS, | 
|  | PB28_AF_UART4_TXD, | 
|  | PB29_AF_UART4_CTS, | 
|  | PB31_AF_UART4_RXD, | 
|  | #endif | 
|  | /* 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 */ | 
|  | PD29_PF_CSPI1_SCLK, | 
|  | PD30_PF_CSPI1_MISO, | 
|  | PD31_PF_CSPI1_MOSI, | 
|  | /* SSI4 */ | 
|  | #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \ | 
|  | || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE) | 
|  | PC16_PF_SSI4_FS, | 
|  | PC17_PF_SSI4_RXD | GPIO_PUEN, | 
|  | PC18_PF_SSI4_TXD | GPIO_PUEN, | 
|  | PC19_PF_SSI4_CLK, | 
|  | #endif | 
|  | }; | 
|  |  | 
|  | static const uint32_t eukrea_mbimx27_keymap[] = { | 
|  | KEY(0, 0, KEY_UP), | 
|  | KEY(0, 1, KEY_DOWN), | 
|  | KEY(1, 0, KEY_RIGHT), | 
|  | KEY(1, 1, KEY_LEFT), | 
|  | }; | 
|  |  | 
|  | static const struct matrix_keymap_data | 
|  | eukrea_mbimx27_keymap_data __initconst = { | 
|  | .keymap         = eukrea_mbimx27_keymap, | 
|  | .keymap_size    = ARRAY_SIZE(eukrea_mbimx27_keymap), | 
|  | }; | 
|  |  | 
|  | 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, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | 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-QVGA", | 
|  | .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, | 
|  | }, { | 
|  | .mode = { | 
|  | .name		= "DVI-VGA", | 
|  | .refresh	= 60, | 
|  | .xres		= 640, | 
|  | .yres		= 480, | 
|  | .pixclock	= 32000, | 
|  | .hsync_len	= 1, | 
|  | .left_margin	= 35, | 
|  | .right_margin	= 0, | 
|  | .vsync_len	= 1, | 
|  | .upper_margin	= 7, | 
|  | .lower_margin	= 0, | 
|  | }, | 
|  | .pcr		= 0xFA208B80, | 
|  | .bpp		= 16, | 
|  | }, { | 
|  | .mode = { | 
|  | .name		= "DVI-SVGA", | 
|  | .refresh	= 60, | 
|  | .xres		= 800, | 
|  | .yres		= 600, | 
|  | .pixclock	= 25000, | 
|  | .hsync_len	= 1, | 
|  | .left_margin	= 35, | 
|  | .right_margin	= 0, | 
|  | .vsync_len	= 1, | 
|  | .upper_margin	= 7, | 
|  | .lower_margin	= 0, | 
|  | }, | 
|  | .pcr		= 0xFA208B80, | 
|  | .bpp		= 16, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static const struct imx_fb_platform_data eukrea_mbimx27_fb_data __initconst = { | 
|  | .mode = eukrea_mbimx27_modes, | 
|  | .num_modes = ARRAY_SIZE(eukrea_mbimx27_modes), | 
|  |  | 
|  | .pwmr		= 0x00A903FF, | 
|  | .lscr1		= 0x00120300, | 
|  | .dmacr		= 0x00040060, | 
|  | }; | 
|  |  | 
|  | static void eukrea_mbimx27_bl_set_intensity(int intensity) | 
|  | { | 
|  | if (intensity) | 
|  | gpio_direction_output(GPIO_PORTE | 5, 1); | 
|  | else | 
|  | gpio_direction_output(GPIO_PORTE | 5, 0); | 
|  | } | 
|  |  | 
|  | static struct generic_bl_info eukrea_mbimx27_bl_info = { | 
|  | .name			= "eukrea_mbimx27-bl", | 
|  | .max_intensity		= 0xff, | 
|  | .default_intensity	= 0xff, | 
|  | .set_bl_intensity	= eukrea_mbimx27_bl_set_intensity, | 
|  | }; | 
|  |  | 
|  | static struct platform_device eukrea_mbimx27_bl_dev = { | 
|  | .name			= "generic-bl", | 
|  | .id			= 1, | 
|  | .dev = { | 
|  | .platform_data	= &eukrea_mbimx27_bl_info, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static void eukrea_mbimx27_lcd_power_set(struct plat_lcd_data *pd, | 
|  | unsigned int power) | 
|  | { | 
|  | if (power) | 
|  | gpio_direction_output(GPIO_PORTA | 25, 1); | 
|  | else | 
|  | gpio_direction_output(GPIO_PORTA | 25, 0); | 
|  | } | 
|  |  | 
|  | static struct plat_lcd_data eukrea_mbimx27_lcd_power_data = { | 
|  | .set_power		= eukrea_mbimx27_lcd_power_set, | 
|  | }; | 
|  |  | 
|  | static struct platform_device eukrea_mbimx27_lcd_powerdev = { | 
|  | .name			= "platform-lcd", | 
|  | .dev.platform_data	= &eukrea_mbimx27_lcd_power_data, | 
|  | }; | 
|  |  | 
|  | static const struct imxuart_platform_data uart_pdata __initconst = { | 
|  | .flags = IMXUART_HAVE_RTSCTS, | 
|  | }; | 
|  |  | 
|  | #define ADS7846_PENDOWN (GPIO_PORTD | 25) | 
|  |  | 
|  | static void __maybe_unused 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 __maybe_unused | 
|  | 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 const struct spi_imx_master eukrea_mbimx27_spi0_data __initconst = { | 
|  | .chipselect	= eukrea_mbimx27_spi_cs, | 
|  | .num_chipselect = ARRAY_SIZE(eukrea_mbimx27_spi_cs), | 
|  | }; | 
|  |  | 
|  | static struct i2c_board_info eukrea_mbimx27_i2c_devices[] = { | 
|  | { | 
|  | I2C_BOARD_INFO("tlv320aic23", 0x1a), | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static struct platform_device *platform_devices[] __initdata = { | 
|  | &leds_gpio, | 
|  | }; | 
|  |  | 
|  | static const struct imxmmc_platform_data sdhc_pdata __initconst = { | 
|  | .dat3_card_detect = 1, | 
|  | }; | 
|  |  | 
|  | static const | 
|  | struct imx_ssi_platform_data eukrea_mbimx27_ssi_pdata __initconst = { | 
|  | .flags = IMX_SSI_DMA | IMX_SSI_USE_I2S_SLAVE, | 
|  | }; | 
|  |  | 
|  | /* | 
|  | * 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"); | 
|  |  | 
|  | #if defined(CONFIG_SND_SOC_EUKREA_TLV320) \ | 
|  | || defined(CONFIG_SND_SOC_EUKREA_TLV320_MODULE) | 
|  | /* SSI unit master I2S codec connected to SSI_PINS_4*/ | 
|  | mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, | 
|  | MXC_AUDMUX_V1_PCR_SYN | | 
|  | MXC_AUDMUX_V1_PCR_TFSDIR | | 
|  | MXC_AUDMUX_V1_PCR_TCLKDIR | | 
|  | MXC_AUDMUX_V1_PCR_RFSDIR | | 
|  | MXC_AUDMUX_V1_PCR_RCLKDIR | | 
|  | MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | | 
|  | MXC_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | | 
|  | MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) | 
|  | ); | 
|  | mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4, | 
|  | MXC_AUDMUX_V1_PCR_SYN | | 
|  | MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0) | 
|  | ); | 
|  | #endif | 
|  |  | 
|  | imx27_add_imx_uart1(&uart_pdata); | 
|  | imx27_add_imx_uart2(&uart_pdata); | 
|  | #if !defined(MACH_EUKREA_CPUIMX27_USEUART4) | 
|  | imx27_add_imx_uart3(&uart_pdata); | 
|  | #endif | 
|  |  | 
|  | imx27_add_imx_fb(&eukrea_mbimx27_fb_data); | 
|  | imx27_add_mxc_mmc(0, &sdhc_pdata); | 
|  |  | 
|  | i2c_register_board_info(0, eukrea_mbimx27_i2c_devices, | 
|  | ARRAY_SIZE(eukrea_mbimx27_i2c_devices)); | 
|  |  | 
|  | imx27_add_imx_ssi(0, &eukrea_mbimx27_ssi_pdata); | 
|  |  | 
|  | #if defined(CONFIG_TOUCHSCREEN_ADS7846) \ | 
|  | || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) | 
|  | /* ADS7846 Touchscreen controller init */ | 
|  | mxc_gpio_mode(GPIO_PORTD | 25 | GPIO_GPIO | GPIO_IN); | 
|  | ads7846_dev_init(); | 
|  | #endif | 
|  |  | 
|  | /* SPI_CS0 init */ | 
|  | mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT); | 
|  | imx27_add_spi_imx0(&eukrea_mbimx27_spi0_data); | 
|  | spi_register_board_info(eukrea_mbimx27_spi_board_info, | 
|  | ARRAY_SIZE(eukrea_mbimx27_spi_board_info)); | 
|  |  | 
|  | /* 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); | 
|  | gpio_request(GPIO_PORTE | 5, "backlight"); | 
|  | platform_device_register(&eukrea_mbimx27_bl_dev); | 
|  | /* LCD Reset */ | 
|  | mxc_gpio_mode(GPIO_PORTA | 25 | GPIO_GPIO | GPIO_OUT); | 
|  | gpio_request(GPIO_PORTA | 25, "lcd_enable"); | 
|  | platform_device_register(&eukrea_mbimx27_lcd_powerdev); | 
|  |  | 
|  | imx27_add_imx_keypad(&eukrea_mbimx27_keymap_data); | 
|  |  | 
|  | platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); | 
|  | } |