/* * 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); }