| /* |
| * 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)); |
| } |