bringup.c
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/****************************************************************************
* boards/arm/s32k1xx/ucans32k146/src/s32k1xx_bringup.c
*
* Copyright (C) 2019 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/types.h>
#include <sys/mount.h>
#include <syslog.h>
#ifdef CONFIG_BUTTONS
# include <nuttx/input/buttons.h>
#endif
#ifdef CONFIG_USERLED
# include <nuttx/leds/userled.h>
#endif
#ifdef CONFIG_I2C_DRIVER
# include "s32k1xx_pin.h"
# include <nuttx/i2c/i2c_master.h>
# include "s32k1xx_lpi2c.h"
#endif
#ifdef CONFIG_S32K1XX_EEEPROM
# include "s32k1xx_eeeprom.h"
#endif
#include "board_config.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: s32k1xx_bringup
*
* Description:
* Perform architecture-specific initialization
*
* CONFIG_BOARD_LATE_INITIALIZE=y :
* Called from board_late_initialize().
*
* CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_LIB_BOARDCTL=y :
* Called from the NSH library
*
****************************************************************************/
int s32k1xx_bringup(void)
{
int ret = OK;
#ifdef CONFIG_BUTTONS
/* Register the BUTTON driver */
ret = btn_lower_initialize("/dev/buttons");
if (ret < 0) {
syslog(LOG_ERR, "ERROR: btn_lower_initialize() failed: %d\n", ret);
}
#endif
#ifdef CONFIG_USERLED
/* Register the LED driver */
ret = userled_lower_initialize("/dev/userleds");
if (ret < 0) {
syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
}
#endif
#ifdef CONFIG_FS_PROCFS
/* Mount the procfs file system */
ret = mount(NULL, "/proc", "procfs", 0, NULL);
if (ret < 0) {
syslog(LOG_ERR, "ERROR: Failed to mount procfs at /proc: %d\n", ret);
}
#endif
#ifdef CONFIG_S32K1XX_EEEPROM
/* Register EEEPROM block device */
s32k1xx_eeeprom_register(0, 4096);
#endif
#ifdef CONFIG_S32K1XX_LPSPI
/* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak
* function s32k1xx_spidev_initialize() has been brought into the link.
*/
s32k1xx_spidev_initialize();
#endif
#if defined(CONFIG_S32K1XX_LPI2C0)
#if defined(CONFIG_I2C_DRIVER)
FAR struct i2c_master_s *i2c;
i2c = s32k1xx_i2cbus_initialize(0);
if (i2c == NULL) {
serr("ERROR: Failed to get I2C%d interface\n", bus);
} else {
ret = i2c_register(i2c, 0);
if (ret < 0) {
serr("ERROR: Failed to register I2C%d driver: %d\n", bus, ret);
s32k1xx_i2cbus_uninitialize(i2c);
}
}
#endif
#endif
return ret;
}