556 lines
13 KiB
C
556 lines
13 KiB
C
/*
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* Copyright 2009 Freescale Semiconductor, Inc. All Rights Reserved.
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*
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* Author: Fabio Estevam <fabio.estevam@freescale.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/*
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* This machine is known as:
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* - i.MX27 3-Stack Development System
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* - i.MX27 Platform Development Kit (i.MX27 PDK)
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*/
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#include <linux/platform_device.h>
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#include <linux/gpio.h>
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#include <linux/irq.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/ulpi.h>
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#include <linux/delay.h>
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#include <linux/mfd/mc13783.h>
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#include <linux/spi/spi.h>
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#include <linux/regulator/machine.h>
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#include <linux/spi/l4f00242t03.h>
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#include <media/soc_camera.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <mach/hardware.h>
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#include <mach/common.h>
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#include <mach/iomux-mx27.h>
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#include <mach/ulpi.h>
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#include <mach/3ds_debugboard.h>
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#include "devices-imx27.h"
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#define SD1_EN_GPIO IMX_GPIO_NR(2, 25)
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#define OTG_PHY_RESET_GPIO IMX_GPIO_NR(2, 23)
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#define SPI2_SS0 IMX_GPIO_NR(4, 21)
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#define PMIC_INT IMX_GPIO_NR(3, 14)
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#define SPI1_SS0 IMX_GPIO_NR(4, 28)
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#define SD1_CD IMX_GPIO_NR(2, 26)
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#define LCD_RESET IMX_GPIO_NR(1, 3)
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#define LCD_ENABLE IMX_GPIO_NR(1, 31)
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#define CSI_PWRDWN IMX_GPIO_NR(4, 19)
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#define CSI_RESET IMX_GPIO_NR(3, 6)
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static const int mx27pdk_pins[] __initconst = {
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/* UART1 */
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PE12_PF_UART1_TXD,
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PE13_PF_UART1_RXD,
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PE14_PF_UART1_CTS,
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PE15_PF_UART1_RTS,
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/* FEC */
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PD0_AIN_FEC_TXD0,
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PD1_AIN_FEC_TXD1,
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PD2_AIN_FEC_TXD2,
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PD3_AIN_FEC_TXD3,
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PD4_AOUT_FEC_RX_ER,
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PD5_AOUT_FEC_RXD1,
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PD6_AOUT_FEC_RXD2,
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PD7_AOUT_FEC_RXD3,
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PD8_AF_FEC_MDIO,
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PD9_AIN_FEC_MDC,
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PD10_AOUT_FEC_CRS,
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PD11_AOUT_FEC_TX_CLK,
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PD12_AOUT_FEC_RXD0,
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PD13_AOUT_FEC_RX_DV,
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PD14_AOUT_FEC_RX_CLK,
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PD15_AOUT_FEC_COL,
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PD16_AIN_FEC_TX_ER,
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PF23_AIN_FEC_TX_EN,
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/* SDHC1 */
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PE18_PF_SD1_D0,
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PE19_PF_SD1_D1,
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PE20_PF_SD1_D2,
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PE21_PF_SD1_D3,
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PE22_PF_SD1_CMD,
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PE23_PF_SD1_CLK,
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SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
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/* OTG */
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OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
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PC7_PF_USBOTG_DATA5,
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PC8_PF_USBOTG_DATA6,
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PC9_PF_USBOTG_DATA0,
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PC10_PF_USBOTG_DATA2,
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PC11_PF_USBOTG_DATA1,
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PC12_PF_USBOTG_DATA4,
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PC13_PF_USBOTG_DATA3,
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PE0_PF_USBOTG_NXT,
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PE1_PF_USBOTG_STP,
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PE2_PF_USBOTG_DIR,
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PE24_PF_USBOTG_CLK,
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PE25_PF_USBOTG_DATA7,
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/* CSPI1 */
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PD31_PF_CSPI1_MOSI,
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PD30_PF_CSPI1_MISO,
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PD29_PF_CSPI1_SCLK,
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PD25_PF_CSPI1_RDY,
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SPI1_SS0 | GPIO_GPIO | GPIO_OUT,
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/* CSPI2 */
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PD22_PF_CSPI2_SCLK,
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PD23_PF_CSPI2_MISO,
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PD24_PF_CSPI2_MOSI,
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SPI2_SS0 | GPIO_GPIO | GPIO_OUT,
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/* I2C1 */
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PD17_PF_I2C_DATA,
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PD18_PF_I2C_CLK,
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/* PMIC INT */
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PMIC_INT | GPIO_GPIO | GPIO_IN,
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/* LCD */
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PA5_PF_LSCLK,
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PA6_PF_LD0,
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PA7_PF_LD1,
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PA8_PF_LD2,
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PA9_PF_LD3,
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PA10_PF_LD4,
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PA11_PF_LD5,
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PA12_PF_LD6,
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PA13_PF_LD7,
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PA14_PF_LD8,
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PA15_PF_LD9,
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PA16_PF_LD10,
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PA17_PF_LD11,
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PA18_PF_LD12,
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PA19_PF_LD13,
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PA20_PF_LD14,
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PA21_PF_LD15,
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PA22_PF_LD16,
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PA23_PF_LD17,
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PA28_PF_HSYNC,
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PA29_PF_VSYNC,
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PA30_PF_CONTRAST,
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LCD_ENABLE | GPIO_GPIO | GPIO_OUT,
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LCD_RESET | GPIO_GPIO | GPIO_OUT,
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/* CSI */
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PB10_PF_CSI_D0,
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PB11_PF_CSI_D1,
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PB12_PF_CSI_D2,
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PB13_PF_CSI_D3,
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PB14_PF_CSI_D4,
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PB15_PF_CSI_MCLK,
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PB16_PF_CSI_PIXCLK,
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PB17_PF_CSI_D5,
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PB18_PF_CSI_D6,
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PB19_PF_CSI_D7,
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PB20_PF_CSI_VSYNC,
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PB21_PF_CSI_HSYNC,
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CSI_PWRDWN | GPIO_GPIO | GPIO_OUT,
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CSI_RESET | GPIO_GPIO | GPIO_OUT,
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/* SSI4 */
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PC16_PF_SSI4_FS,
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PC17_PF_SSI4_RXD,
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PC18_PF_SSI4_TXD,
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PC19_PF_SSI4_CLK,
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};
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static struct gpio mx27_3ds_camera_gpios[] = {
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{ CSI_PWRDWN, GPIOF_OUT_INIT_HIGH, "camera-power" },
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{ CSI_RESET, GPIOF_OUT_INIT_HIGH, "camera-reset" },
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};
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static const struct imxuart_platform_data uart_pdata __initconst = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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/*
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* Matrix keyboard
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*/
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static const uint32_t mx27_3ds_keymap[] = {
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KEY(0, 0, KEY_UP),
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KEY(0, 1, KEY_DOWN),
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KEY(1, 0, KEY_RIGHT),
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KEY(1, 1, KEY_LEFT),
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KEY(1, 2, KEY_ENTER),
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KEY(2, 0, KEY_F6),
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KEY(2, 1, KEY_F8),
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KEY(2, 2, KEY_F9),
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KEY(2, 3, KEY_F10),
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};
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static const struct matrix_keymap_data mx27_3ds_keymap_data __initconst = {
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.keymap = mx27_3ds_keymap,
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.keymap_size = ARRAY_SIZE(mx27_3ds_keymap),
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};
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static int mx27_3ds_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
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void *data)
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{
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return request_irq(gpio_to_irq(SD1_CD), detect_irq,
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IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "sdhc1-card-detect", data);
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}
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static void mx27_3ds_sdhc1_exit(struct device *dev, void *data)
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{
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free_irq(gpio_to_irq(SD1_CD), data);
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}
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static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
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.init = mx27_3ds_sdhc1_init,
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.exit = mx27_3ds_sdhc1_exit,
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};
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static void mx27_3ds_sdhc1_enable_level_translator(void)
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{
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/* Turn on TXB0108 OE pin */
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gpio_request(SD1_EN_GPIO, "sd1_enable");
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gpio_direction_output(SD1_EN_GPIO, 1);
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}
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static int otg_phy_init(void)
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{
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gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
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gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
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mdelay(1);
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gpio_set_value(OTG_PHY_RESET_GPIO, 1);
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return 0;
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}
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static int mx27_3ds_otg_init(struct platform_device *pdev)
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{
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return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
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}
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static struct mxc_usbh_platform_data otg_pdata __initdata = {
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.init = mx27_3ds_otg_init,
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.portsc = MXC_EHCI_MODE_ULPI,
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};
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static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
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.operating_mode = FSL_USB2_DR_DEVICE,
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.phy_mode = FSL_USB2_PHY_ULPI,
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};
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static bool otg_mode_host __initdata;
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static int __init mx27_3ds_otg_mode(char *options)
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{
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if (!strcmp(options, "host"))
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otg_mode_host = true;
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else if (!strcmp(options, "device"))
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otg_mode_host = false;
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else
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pr_info("otg_mode neither \"host\" nor \"device\". "
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"Defaulting to device\n");
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return 1;
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}
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__setup("otg_mode=", mx27_3ds_otg_mode);
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/* Regulators */
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static struct regulator_init_data gpo_init = {
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.constraints = {
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.boot_on = 1,
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.always_on = 1,
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}
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};
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static struct regulator_consumer_supply vmmc1_consumers[] = {
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REGULATOR_SUPPLY("vcore", "spi0.0"),
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REGULATOR_SUPPLY("cmos_2v8", "soc-camera-pdrv.0"),
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};
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static struct regulator_init_data vmmc1_init = {
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.constraints = {
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.min_uV = 2800000,
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.max_uV = 2800000,
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.apply_uV = 1,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
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REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(vmmc1_consumers),
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.consumer_supplies = vmmc1_consumers,
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};
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static struct regulator_consumer_supply vgen_consumers[] = {
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REGULATOR_SUPPLY("vdd", "spi0.0"),
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};
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static struct regulator_init_data vgen_init = {
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.constraints = {
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.min_uV = 1800000,
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.max_uV = 1800000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
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},
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.num_consumer_supplies = ARRAY_SIZE(vgen_consumers),
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.consumer_supplies = vgen_consumers,
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};
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static struct regulator_consumer_supply vvib_consumers[] = {
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REGULATOR_SUPPLY("cmos_vcore", "soc-camera-pdrv.0"),
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};
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static struct regulator_init_data vvib_init = {
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.constraints = {
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.min_uV = 1300000,
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.max_uV = 1300000,
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.apply_uV = 1,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
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REGULATOR_CHANGE_STATUS,
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},
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.num_consumer_supplies = ARRAY_SIZE(vvib_consumers),
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.consumer_supplies = vvib_consumers,
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};
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static struct mc13xxx_regulator_init_data mx27_3ds_regulators[] = {
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{
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.id = MC13783_REG_VMMC1,
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.init_data = &vmmc1_init,
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}, {
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.id = MC13783_REG_VGEN,
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.init_data = &vgen_init,
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}, {
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.id = MC13783_REG_GPO1, /* Turn on 1.8V */
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.init_data = &gpo_init,
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}, {
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.id = MC13783_REG_GPO3, /* Turn on 3.3V */
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.init_data = &gpo_init,
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}, {
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.id = MC13783_REG_VVIB, /* Power OV2640 */
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.init_data = &vvib_init,
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},
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};
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/* MC13783 */
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static struct mc13xxx_codec_platform_data mx27_3ds_codec = {
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.dac_ssi_port = MC13783_SSI1_PORT,
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.adc_ssi_port = MC13783_SSI1_PORT,
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};
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static struct mc13xxx_platform_data mc13783_pdata = {
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.regulators = {
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.regulators = mx27_3ds_regulators,
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.num_regulators = ARRAY_SIZE(mx27_3ds_regulators),
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},
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.flags = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC |
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MC13XXX_USE_CODEC,
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.codec = &mx27_3ds_codec,
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};
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static struct imx_ssi_platform_data mx27_3ds_ssi_pdata = {
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.flags = IMX_SSI_DMA | IMX_SSI_NET,
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};
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/* SPI */
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static int spi1_chipselect[] = {SPI1_SS0};
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static const struct spi_imx_master spi1_pdata __initconst = {
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.chipselect = spi1_chipselect,
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.num_chipselect = ARRAY_SIZE(spi1_chipselect),
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};
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static int spi2_chipselect[] = {SPI2_SS0};
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static const struct spi_imx_master spi2_pdata __initconst = {
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.chipselect = spi2_chipselect,
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.num_chipselect = ARRAY_SIZE(spi2_chipselect),
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};
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static int mx27_3ds_camera_power(struct device *dev, int on)
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{
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/* enable or disable the camera */
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pr_debug("%s: %s the camera\n", __func__, on ? "ENABLE" : "DISABLE");
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gpio_set_value(CSI_PWRDWN, on ? 0 : 1);
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if (!on)
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goto out;
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/* If enabled, give a reset impulse */
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gpio_set_value(CSI_RESET, 0);
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msleep(20);
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gpio_set_value(CSI_RESET, 1);
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msleep(100);
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out:
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return 0;
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}
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static struct i2c_board_info mx27_3ds_i2c_camera = {
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I2C_BOARD_INFO("ov2640", 0x30),
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};
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static struct regulator_bulk_data mx27_3ds_camera_regs[] = {
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{ .supply = "cmos_vcore" },
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{ .supply = "cmos_2v8" },
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};
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static struct soc_camera_link iclink_ov2640 = {
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.bus_id = 0,
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.board_info = &mx27_3ds_i2c_camera,
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.i2c_adapter_id = 0,
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.power = mx27_3ds_camera_power,
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.regulators = mx27_3ds_camera_regs,
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.num_regulators = ARRAY_SIZE(mx27_3ds_camera_regs),
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};
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static struct platform_device mx27_3ds_ov2640 = {
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.name = "soc-camera-pdrv",
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.id = 0,
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.dev = {
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.platform_data = &iclink_ov2640,
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},
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};
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static struct imx_fb_videomode mx27_3ds_modes[] = {
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{ /* 480x640 @ 60 Hz */
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.mode = {
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.name = "Epson-VGA",
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.refresh = 60,
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.xres = 480,
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.yres = 640,
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.pixclock = 41701,
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.left_margin = 20,
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.right_margin = 41,
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.upper_margin = 10,
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.lower_margin = 5,
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.hsync_len = 20,
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.vsync_len = 10,
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.sync = FB_SYNC_OE_ACT_HIGH |
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FB_SYNC_CLK_INVERT,
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.vmode = FB_VMODE_NONINTERLACED,
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.flag = 0,
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},
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.bpp = 16,
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.pcr = 0xFAC08B82,
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},
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};
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static const struct imx_fb_platform_data mx27_3ds_fb_data __initconst = {
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.mode = mx27_3ds_modes,
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.num_modes = ARRAY_SIZE(mx27_3ds_modes),
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.pwmr = 0x00A903FF,
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.lscr1 = 0x00120300,
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.dmacr = 0x00020010,
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};
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/* LCD */
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static struct l4f00242t03_pdata mx27_3ds_lcd_pdata = {
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.reset_gpio = LCD_RESET,
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.data_enable_gpio = LCD_ENABLE,
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};
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static struct spi_board_info mx27_3ds_spi_devs[] __initdata = {
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{
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.modalias = "mc13783",
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.max_speed_hz = 1000000,
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.bus_num = 1,
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.chip_select = 0, /* SS0 */
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.platform_data = &mc13783_pdata,
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/* irq number is run-time assigned */
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.mode = SPI_CS_HIGH,
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}, {
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.modalias = "l4f00242t03",
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.max_speed_hz = 5000000,
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.bus_num = 0,
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.chip_select = 0, /* SS0 */
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.platform_data = &mx27_3ds_lcd_pdata,
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},
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};
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static struct platform_device *devices[] __initdata = {
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&mx27_3ds_ov2640,
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};
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|
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static const struct mx2_camera_platform_data mx27_3ds_cam_pdata __initconst = {
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.clk = 26000000,
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};
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|
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static const struct imxi2c_platform_data mx27_3ds_i2c0_data __initconst = {
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.bitrate = 100000,
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|
};
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|
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static void __init mx27pdk_init(void)
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|
{
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|
int ret;
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|
imx27_soc_init();
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|
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|
mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
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|
"mx27pdk");
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|
mx27_3ds_sdhc1_enable_level_translator();
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|
imx27_add_imx_uart0(&uart_pdata);
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|
imx27_add_fec(NULL);
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|
imx27_add_imx_keypad(&mx27_3ds_keymap_data);
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|
imx27_add_mxc_mmc(0, &sdhc1_pdata);
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|
imx27_add_imx2_wdt();
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|
otg_phy_init();
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|
|
|
if (otg_mode_host) {
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|
otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
|
|
ULPI_OTG_DRVVBUS_EXT);
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|
|
|
if (otg_pdata.otg)
|
|
imx27_add_mxc_ehci_otg(&otg_pdata);
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|
}
|
|
|
|
if (!otg_mode_host)
|
|
imx27_add_fsl_usb2_udc(&otg_device_pdata);
|
|
|
|
imx27_add_spi_imx1(&spi2_pdata);
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|
imx27_add_spi_imx0(&spi1_pdata);
|
|
mx27_3ds_spi_devs[0].irq = gpio_to_irq(PMIC_INT);
|
|
spi_register_board_info(mx27_3ds_spi_devs,
|
|
ARRAY_SIZE(mx27_3ds_spi_devs));
|
|
|
|
if (mxc_expio_init(MX27_CS5_BASE_ADDR, IMX_GPIO_NR(3, 28)))
|
|
pr_warn("Init of the debugboard failed, all devices on the debugboard are unusable.\n");
|
|
imx27_add_imx_i2c(0, &mx27_3ds_i2c0_data);
|
|
platform_add_devices(devices, ARRAY_SIZE(devices));
|
|
imx27_add_imx_fb(&mx27_3ds_fb_data);
|
|
|
|
ret = gpio_request_array(mx27_3ds_camera_gpios,
|
|
ARRAY_SIZE(mx27_3ds_camera_gpios));
|
|
if (ret) {
|
|
pr_err("Failed to request camera gpios");
|
|
iclink_ov2640.power = NULL;
|
|
}
|
|
|
|
imx27_add_mx2_camera(&mx27_3ds_cam_pdata);
|
|
imx27_add_imx_ssi(0, &mx27_3ds_ssi_pdata);
|
|
|
|
imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
|
|
}
|
|
|
|
static void __init mx27pdk_timer_init(void)
|
|
{
|
|
mx27_clocks_init(26000000);
|
|
}
|
|
|
|
static struct sys_timer mx27pdk_timer = {
|
|
.init = mx27pdk_timer_init,
|
|
};
|
|
|
|
MACHINE_START(MX27_3DS, "Freescale MX27PDK")
|
|
/* maintainer: Freescale Semiconductor, Inc. */
|
|
.atag_offset = 0x100,
|
|
.map_io = mx27_map_io,
|
|
.init_early = imx27_init_early,
|
|
.init_irq = mx27_init_irq,
|
|
.handle_irq = imx27_handle_irq,
|
|
.timer = &mx27pdk_timer,
|
|
.init_machine = mx27pdk_init,
|
|
.restart = mxc_restart,
|
|
MACHINE_END
|