diff options
Diffstat (limited to 'arch/arm/mach-imx/eukrea_mbimxsd51-baseboard.c')
| -rw-r--r-- | arch/arm/mach-imx/eukrea_mbimxsd51-baseboard.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/eukrea_mbimxsd51-baseboard.c b/arch/arm/mach-imx/eukrea_mbimxsd51-baseboard.c new file mode 100644 index 000000000000..96a24b73dc23 --- /dev/null +++ b/arch/arm/mach-imx/eukrea_mbimxsd51-baseboard.c @@ -0,0 +1,231 @@ +/* + * Copyright (C) 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/types.h> +#include <linux/init.h> + +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/leds.h> +#include <linux/platform_device.h> +#include <linux/input.h> +#include <linux/i2c.h> +#include <video/platform_lcd.h> +#include <linux/backlight.h> + +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/time.h> +#include <asm/mach/map.h> + +#include <mach/hardware.h> +#include <mach/common.h> +#include <mach/iomux-mx51.h> + +#include "devices-imx51.h" + +static iomux_v3_cfg_t eukrea_mbimxsd51_pads[] = { + /* LED */ + MX51_PAD_NANDF_D10__GPIO3_30, + /* SWITCH */ + NEW_PAD_CTRL(MX51_PAD_NANDF_D9__GPIO3_31, PAD_CTL_PUS_22K_UP | + PAD_CTL_PKE | PAD_CTL_SRE_FAST | + PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS), + /* UART2 */ + MX51_PAD_UART2_RXD__UART2_RXD, + MX51_PAD_UART2_TXD__UART2_TXD, + /* UART 3 */ + MX51_PAD_UART3_RXD__UART3_RXD, + MX51_PAD_UART3_TXD__UART3_TXD, + MX51_PAD_KEY_COL4__UART3_RTS, + MX51_PAD_KEY_COL5__UART3_CTS, + /* SD */ + MX51_PAD_SD1_CMD__SD1_CMD, + MX51_PAD_SD1_CLK__SD1_CLK, + MX51_PAD_SD1_DATA0__SD1_DATA0, + MX51_PAD_SD1_DATA1__SD1_DATA1, + MX51_PAD_SD1_DATA2__SD1_DATA2, + MX51_PAD_SD1_DATA3__SD1_DATA3, + /* SD1 CD */ + NEW_PAD_CTRL(MX51_PAD_GPIO1_0__SD1_CD, PAD_CTL_PUS_22K_UP | + PAD_CTL_PKE | PAD_CTL_SRE_FAST | + PAD_CTL_DSE_HIGH | PAD_CTL_PUE | PAD_CTL_HYS), + /* SSI */ + MX51_PAD_AUD3_BB_TXD__AUD3_TXD, + MX51_PAD_AUD3_BB_RXD__AUD3_RXD, + MX51_PAD_AUD3_BB_CK__AUD3_TXC, + MX51_PAD_AUD3_BB_FS__AUD3_TXFS, + /* LCD Backlight */ + MX51_PAD_DI1_D1_CS__GPIO3_4, + /* LCD RST */ + MX51_PAD_CSI1_D9__GPIO3_13, +}; + +#define GPIO_LED1 IMX_GPIO_NR(3, 30) +#define GPIO_SWITCH1 IMX_GPIO_NR(3, 31) +#define GPIO_LCDRST IMX_GPIO_NR(3, 13) +#define GPIO_LCDBL IMX_GPIO_NR(3, 4) + +static void eukrea_mbimxsd51_lcd_power_set(struct plat_lcd_data *pd, + unsigned int power) +{ + if (power) + gpio_direction_output(GPIO_LCDRST, 1); + else + gpio_direction_output(GPIO_LCDRST, 0); +} + +static struct plat_lcd_data eukrea_mbimxsd51_lcd_power_data = { + .set_power = eukrea_mbimxsd51_lcd_power_set, +}; + +static struct platform_device eukrea_mbimxsd51_lcd_powerdev = { + .name = "platform-lcd", + .dev.platform_data = &eukrea_mbimxsd51_lcd_power_data, +}; + +static void eukrea_mbimxsd51_bl_set_intensity(int intensity) +{ + if (intensity) + gpio_direction_output(GPIO_LCDBL, 1); + else + gpio_direction_output(GPIO_LCDBL, 0); +} + +static struct generic_bl_info eukrea_mbimxsd51_bl_info = { + .name = "eukrea_mbimxsd51-bl", + .max_intensity = 0xff, + .default_intensity = 0xff, + .set_bl_intensity = eukrea_mbimxsd51_bl_set_intensity, +}; + +static struct platform_device eukrea_mbimxsd51_bl_dev = { + .name = "generic-bl", + .id = 1, + .dev = { + .platform_data = &eukrea_mbimxsd51_bl_info, + }, +}; + +static const struct gpio_led eukrea_mbimxsd51_leds[] __initconst = { + { + .name = "led1", + .default_trigger = "heartbeat", + .active_low = 1, + .gpio = GPIO_LED1, + }, +}; + +static const struct gpio_led_platform_data + eukrea_mbimxsd51_led_info __initconst = { + .leds = eukrea_mbimxsd51_leds, + .num_leds = ARRAY_SIZE(eukrea_mbimxsd51_leds), +}; + +static struct gpio_keys_button eukrea_mbimxsd51_gpio_buttons[] = { + { + .gpio = GPIO_SWITCH1, + .code = BTN_0, + .desc = "BP1", + .active_low = 1, + .wakeup = 1, + }, +}; + +static const struct gpio_keys_platform_data + eukrea_mbimxsd51_button_data __initconst = { + .buttons = eukrea_mbimxsd51_gpio_buttons, + .nbuttons = ARRAY_SIZE(eukrea_mbimxsd51_gpio_buttons), +}; + +static const struct imxuart_platform_data uart_pdata __initconst = { + .flags = IMXUART_HAVE_RTSCTS, +}; + +static struct i2c_board_info eukrea_mbimxsd51_i2c_devices[] = { + { + I2C_BOARD_INFO("tlv320aic23", 0x1a), + }, +}; + +static const +struct imx_ssi_platform_data eukrea_mbimxsd51_ssi_pdata __initconst = { + .flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE, +}; + +static int screen_type; + +static int __init eukrea_mbimxsd51_screen_type(char *options) +{ + if (!strcmp(options, "dvi")) + screen_type = 1; + else if (!strcmp(options, "tft")) + screen_type = 0; + + return 0; +} +__setup("screen_type=", eukrea_mbimxsd51_screen_type); + +/* + * system init for baseboard usage. Will be called by cpuimx51sd 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_mbimxsd51_baseboard_init(void) +{ + if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd51_pads, + ARRAY_SIZE(eukrea_mbimxsd51_pads))) + printk(KERN_ERR "error setting mbimxsd pads !\n"); + + imx51_add_imx_uart(1, NULL); + imx51_add_imx_uart(2, &uart_pdata); + + imx51_add_sdhci_esdhc_imx(0, NULL); + + imx51_add_imx_ssi(0, &eukrea_mbimxsd51_ssi_pdata); + + gpio_request(GPIO_LED1, "LED1"); + gpio_direction_output(GPIO_LED1, 1); + gpio_free(GPIO_LED1); + + gpio_request(GPIO_SWITCH1, "SWITCH1"); + gpio_direction_input(GPIO_SWITCH1); + gpio_free(GPIO_SWITCH1); + + gpio_request(GPIO_LCDRST, "LCDRST"); + gpio_direction_output(GPIO_LCDRST, 0); + gpio_request(GPIO_LCDBL, "LCDBL"); + gpio_direction_output(GPIO_LCDBL, 0); + if (!screen_type) { + platform_device_register(&eukrea_mbimxsd51_bl_dev); + platform_device_register(&eukrea_mbimxsd51_lcd_powerdev); + } else { + gpio_free(GPIO_LCDRST); + gpio_free(GPIO_LCDBL); + } + + i2c_register_board_info(0, eukrea_mbimxsd51_i2c_devices, + ARRAY_SIZE(eukrea_mbimxsd51_i2c_devices)); + + gpio_led_register_device(-1, &eukrea_mbimxsd51_led_info); + imx_add_gpio_keys(&eukrea_mbimxsd51_button_data); +} |