forked from Minki/linux
e335c75cf3
This baseboard is used on the handbot and eybot robots. The sel gpios are used as enables and rst signals on smartbot, thus the sel init is moved from mx31moboard file to board files. Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
552 lines
14 KiB
C
552 lines
14 KiB
C
/*
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* Copyright (C) 2008 Valentin Longchamp, EPFL Mobots group
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/delay.h>
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#include <linux/dma-mapping.h>
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#include <linux/fsl_devices.h>
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#include <linux/gpio.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/leds.h>
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#include <linux/memory.h>
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#include <linux/mtd/physmap.h>
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#include <linux/mtd/partitions.h>
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#include <linux/platform_device.h>
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#include <linux/regulator/machine.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/types.h>
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#include <linux/usb/otg.h>
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#include <linux/usb/ulpi.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 <asm/mach/map.h>
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#include <mach/board-mx31moboard.h>
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#include <mach/common.h>
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#include <mach/hardware.h>
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#include <mach/imx-uart.h>
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#include <mach/iomux-mx3.h>
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#include <mach/ipu.h>
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#include <mach/i2c.h>
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#include <mach/mmc.h>
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#include <mach/mxc_ehci.h>
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#include <mach/mx3_camera.h>
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#include <mach/spi.h>
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#include <mach/ulpi.h>
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#include "devices.h"
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static unsigned int moboard_pins[] = {
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/* UART0 */
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MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
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MX31_PIN_CTS1__GPIO2_7,
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/* UART4 */
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MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
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MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
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/* I2C0 */
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MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
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/* I2C1 */
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MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
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/* SDHC1 */
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MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
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MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
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MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
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MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
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/* USB reset */
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MX31_PIN_GPIO1_0__GPIO1_0,
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/* USB OTG */
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MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
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MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
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MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
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MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
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MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
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MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
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MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
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MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
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MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
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MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
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MX31_PIN_USB_OC__GPIO1_30,
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/* USB H2 */
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MX31_PIN_USBH2_DATA0__USBH2_DATA0,
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MX31_PIN_USBH2_DATA1__USBH2_DATA1,
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MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
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MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
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MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
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MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
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MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
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MX31_PIN_SCK6__GPIO1_25,
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/* LEDs */
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MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
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MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
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/* SPI1 */
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MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
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MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
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MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
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/* Atlas IRQ */
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MX31_PIN_GPIO1_3__GPIO1_3,
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/* SPI2 */
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MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
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MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
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MX31_PIN_CSPI2_SS1__CSPI3_SS1,
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};
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static struct physmap_flash_data mx31moboard_flash_data = {
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.width = 2,
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};
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static struct resource mx31moboard_flash_resource = {
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.start = 0xa0000000,
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.end = 0xa1ffffff,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device mx31moboard_flash = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &mx31moboard_flash_data,
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},
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.resource = &mx31moboard_flash_resource,
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.num_resources = 1,
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};
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static int moboard_uart0_init(struct platform_device *pdev)
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{
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gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack");
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gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
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return 0;
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}
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static struct imxuart_platform_data uart0_pdata = {
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.init = moboard_uart0_init,
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};
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static struct imxuart_platform_data uart4_pdata = {
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.flags = IMXUART_HAVE_RTSCTS,
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};
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static struct imxi2c_platform_data moboard_i2c0_pdata = {
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.bitrate = 400000,
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};
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static struct imxi2c_platform_data moboard_i2c1_pdata = {
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.bitrate = 100000,
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};
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static int moboard_spi1_cs[] = {
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MXC_SPI_CS(0),
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MXC_SPI_CS(2),
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};
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static struct spi_imx_master moboard_spi1_master = {
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.chipselect = moboard_spi1_cs,
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.num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
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};
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static struct regulator_consumer_supply sdhc_consumers[] = {
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{
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.dev = &mxcsdhc_device0.dev,
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.supply = "sdhc0_vcc",
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},
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{
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.dev = &mxcsdhc_device1.dev,
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.supply = "sdhc1_vcc",
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},
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};
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static struct regulator_init_data sdhc_vreg_data = {
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.constraints = {
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.min_uV = 2700000,
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.max_uV = 3000000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
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REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
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.valid_modes_mask = REGULATOR_MODE_NORMAL |
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REGULATOR_MODE_FAST,
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.always_on = 0,
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.boot_on = 1,
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},
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.num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
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.consumer_supplies = sdhc_consumers,
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};
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static struct regulator_consumer_supply cam_consumers[] = {
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{
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.dev = &mx3_camera.dev,
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.supply = "cam_vcc",
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},
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};
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static struct regulator_init_data cam_vreg_data = {
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.constraints = {
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.min_uV = 2700000,
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.max_uV = 3000000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
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REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
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.valid_modes_mask = REGULATOR_MODE_NORMAL |
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REGULATOR_MODE_FAST,
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.always_on = 0,
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.boot_on = 1,
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},
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.num_consumer_supplies = ARRAY_SIZE(cam_consumers),
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.consumer_supplies = cam_consumers,
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};
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static struct mc13783_regulator_init_data moboard_regulators[] = {
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{
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.id = MC13783_REGU_VMMC1,
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.init_data = &sdhc_vreg_data,
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},
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{
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.id = MC13783_REGU_VCAM,
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.init_data = &cam_vreg_data,
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},
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};
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static struct mc13783_platform_data moboard_pmic = {
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.regulators = moboard_regulators,
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.num_regulators = ARRAY_SIZE(moboard_regulators),
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.flags = MC13783_USE_REGULATOR | MC13783_USE_RTC |
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MC13783_USE_ADC,
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};
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static struct spi_board_info moboard_spi_board_info[] __initdata = {
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{
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.modalias = "mc13783",
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.irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
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.max_speed_hz = 300000,
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.bus_num = 1,
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.chip_select = 0,
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.platform_data = &moboard_pmic,
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.mode = SPI_CS_HIGH,
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},
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};
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static int moboard_spi2_cs[] = {
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MXC_SPI_CS(1),
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};
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static struct spi_imx_master moboard_spi2_master = {
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.chipselect = moboard_spi2_cs,
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.num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
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};
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#define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
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#define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
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static int moboard_sdhc1_get_ro(struct device *dev)
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{
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return !gpio_get_value(SDHC1_WP);
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}
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static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
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void *data)
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{
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int ret;
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ret = gpio_request(SDHC1_CD, "sdhc-detect");
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if (ret)
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return ret;
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gpio_direction_input(SDHC1_CD);
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ret = gpio_request(SDHC1_WP, "sdhc-wp");
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if (ret)
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goto err_gpio_free;
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gpio_direction_input(SDHC1_WP);
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ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
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IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
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"sdhc1-card-detect", data);
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if (ret)
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goto err_gpio_free_2;
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return 0;
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err_gpio_free_2:
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gpio_free(SDHC1_WP);
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err_gpio_free:
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gpio_free(SDHC1_CD);
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return ret;
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}
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static void moboard_sdhc1_exit(struct device *dev, void *data)
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{
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free_irq(gpio_to_irq(SDHC1_CD), data);
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gpio_free(SDHC1_WP);
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gpio_free(SDHC1_CD);
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}
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static struct imxmmc_platform_data sdhc1_pdata = {
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.get_ro = moboard_sdhc1_get_ro,
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.init = moboard_sdhc1_init,
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.exit = moboard_sdhc1_exit,
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};
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/*
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* this pin is dedicated for all mx31moboard systems, so we do it here
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*/
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#define USB_RESET_B IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
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static void usb_xcvr_reset(void)
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{
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gpio_request(USB_RESET_B, "usb-reset");
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gpio_direction_output(USB_RESET_B, 0);
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mdelay(1);
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gpio_set_value(USB_RESET_B, 1);
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}
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#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
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PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
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#define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
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static void moboard_usbotg_init(void)
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{
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mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG);
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gpio_request(OTG_EN_B, "usb-udc-en");
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gpio_direction_output(OTG_EN_B, 0);
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}
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static struct fsl_usb2_platform_data usb_pdata = {
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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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#if defined(CONFIG_USB_ULPI)
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#define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
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static int moboard_usbh2_hw_init(struct platform_device *pdev)
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{
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int ret;
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mxc_iomux_set_gpr(MUX_PGP_UH2, true);
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mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG);
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mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG);
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ret = gpio_request(USBH2_EN_B, "usbh2-en");
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if (ret)
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return ret;
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gpio_direction_output(USBH2_EN_B, 0);
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return 0;
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}
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static int moboard_usbh2_hw_exit(struct platform_device *pdev)
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{
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gpio_free(USBH2_EN_B);
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return 0;
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}
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static struct mxc_usbh_platform_data usbh2_pdata = {
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.init = moboard_usbh2_hw_init,
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.exit = moboard_usbh2_hw_exit,
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.portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
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.flags = MXC_EHCI_POWER_PINS_ENABLED,
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};
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static int __init moboard_usbh2_init(void)
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{
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usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
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USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
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return mxc_register_device(&mxc_usbh2, &usbh2_pdata);
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}
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#else
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static inline int moboard_usbh2_init(void) { return 0; }
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#endif
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static struct gpio_led mx31moboard_leds[] = {
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{
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.name = "coreboard-led-0:red:running",
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.default_trigger = "heartbeat",
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.gpio = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
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}, {
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.name = "coreboard-led-1:red",
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.gpio = IOMUX_TO_GPIO(MX31_PIN_STX0),
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}, {
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.name = "coreboard-led-2:red",
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.gpio = IOMUX_TO_GPIO(MX31_PIN_SRX0),
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}, {
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.name = "coreboard-led-3:red",
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.gpio = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
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},
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};
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static struct gpio_led_platform_data mx31moboard_led_pdata = {
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.num_leds = ARRAY_SIZE(mx31moboard_leds),
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.leds = mx31moboard_leds,
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};
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static struct platform_device mx31moboard_leds_device = {
|
|
.name = "leds-gpio",
|
|
.id = -1,
|
|
.dev = {
|
|
.platform_data = &mx31moboard_led_pdata,
|
|
},
|
|
};
|
|
|
|
static struct ipu_platform_data mx3_ipu_data = {
|
|
.irq_base = MXC_IPU_IRQ_START,
|
|
};
|
|
|
|
static struct platform_device *devices[] __initdata = {
|
|
&mx31moboard_flash,
|
|
&mx31moboard_leds_device,
|
|
};
|
|
|
|
static struct mx3_camera_pdata camera_pdata = {
|
|
.dma_dev = &mx3_ipu.dev,
|
|
.flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
|
|
.mclk_10khz = 4800,
|
|
};
|
|
|
|
#define CAMERA_BUF_SIZE (4*1024*1024)
|
|
|
|
static int __init mx31moboard_cam_alloc_dma(const size_t buf_size)
|
|
{
|
|
dma_addr_t dma_handle;
|
|
void *buf;
|
|
int dma;
|
|
|
|
if (buf_size < 2 * 1024 * 1024)
|
|
return -EINVAL;
|
|
|
|
buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL);
|
|
if (!buf) {
|
|
pr_err("%s: cannot allocate camera buffer-memory\n", __func__);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
memset(buf, 0, buf_size);
|
|
|
|
dma = dma_declare_coherent_memory(&mx3_camera.dev,
|
|
dma_handle, dma_handle, buf_size,
|
|
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
|
|
|
|
/* The way we call dma_declare_coherent_memory only a malloc can fail */
|
|
return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM;
|
|
}
|
|
|
|
static int mx31moboard_baseboard;
|
|
core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
|
|
|
|
/*
|
|
* Board specific initialization.
|
|
*/
|
|
static void __init mxc_board_init(void)
|
|
{
|
|
mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
|
|
"moboard");
|
|
|
|
platform_add_devices(devices, ARRAY_SIZE(devices));
|
|
|
|
mxc_register_device(&mxc_uart_device0, &uart0_pdata);
|
|
|
|
mxc_register_device(&mxc_uart_device4, &uart4_pdata);
|
|
|
|
mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
|
|
mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);
|
|
|
|
mxc_register_device(&mxc_spi_device1, &moboard_spi1_master);
|
|
mxc_register_device(&mxc_spi_device2, &moboard_spi2_master);
|
|
|
|
gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
|
|
gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
|
|
spi_register_board_info(moboard_spi_board_info,
|
|
ARRAY_SIZE(moboard_spi_board_info));
|
|
|
|
mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);
|
|
|
|
mxc_register_device(&mx3_ipu, &mx3_ipu_data);
|
|
if (!mx31moboard_cam_alloc_dma(CAMERA_BUF_SIZE))
|
|
mxc_register_device(&mx3_camera, &camera_pdata);
|
|
|
|
usb_xcvr_reset();
|
|
|
|
moboard_usbotg_init();
|
|
mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
|
|
moboard_usbh2_init();
|
|
|
|
switch (mx31moboard_baseboard) {
|
|
case MX31NOBOARD:
|
|
break;
|
|
case MX31DEVBOARD:
|
|
mx31moboard_devboard_init();
|
|
break;
|
|
case MX31MARXBOT:
|
|
mx31moboard_marxbot_init();
|
|
break;
|
|
case MX31SMARTBOT:
|
|
mx31moboard_smartbot_init();
|
|
break;
|
|
default:
|
|
printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
|
|
mx31moboard_baseboard);
|
|
}
|
|
}
|
|
|
|
static void __init mx31moboard_timer_init(void)
|
|
{
|
|
mx31_clocks_init(26000000);
|
|
}
|
|
|
|
struct sys_timer mx31moboard_timer = {
|
|
.init = mx31moboard_timer_init,
|
|
};
|
|
|
|
MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
|
|
/* Maintainer: Valentin Longchamp, EPFL Mobots group */
|
|
.phys_io = MX31_AIPS1_BASE_ADDR,
|
|
.io_pg_offst = (MX31_AIPS1_BASE_ADDR_VIRT >> 18) & 0xfffc,
|
|
.boot_params = MX3x_PHYS_OFFSET + 0x100,
|
|
.map_io = mx31_map_io,
|
|
.init_irq = mx31_init_irq,
|
|
.init_machine = mxc_board_init,
|
|
.timer = &mx31moboard_timer,
|
|
MACHINE_END
|
|
|