160 lines
4.5 KiB
C
160 lines
4.5 KiB
C
/****************************************************************************
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* boards/arm/stm32u5/nucleo-u5a5zj-q/src/stm32_bringup.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/mount.h>
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#include <sys/types.h>
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#include <debug.h>
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#include <nuttx/input/buttons.h>
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#include <nuttx/leds/userled.h>
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#include <nuttx/spi/spi_transfer.h>
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#include <nuttx/board.h>
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#include <nuttx/clock.h>
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#include "nucleo-u5a5zj-q.h"
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#include <arch/board/board.h>
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#include <stm32_spi.h>
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#if defined(CONFIG_I2C)
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#include "stm32_i2c.h"
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struct i2c_master_s *i2c1_m;
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struct i2c_master_s *i2c2_m;
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# ifdef CONFIG_RTC_DSXXXX
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# include <nuttx/timers/rtc.h>
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# include <nuttx/timers/ds3231.h>
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# endif /* CONFIG_RTC_DSXXXX */
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#endif /* CONFIG_I2C */
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define DEVNO_ZERO 0
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#define DEVNO_ONE 1
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#define DEVNO_TWO 2
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Should not be here, but there is a bug in clock_initalize logic that
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* prevents external RTC to be used when no internal RTC !
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* **************************************************************************/
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#if defined(CONFIG_RTC) && defined(CONFIG_RTC_EXTERNAL)
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int up_rtc_initialize(void)
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{
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return OK;
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}
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#endif
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/****************************************************************************
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* Name: stm32_bringup
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*
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* Description:
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* Perform architecture-specific initialization
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*
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* CONFIG_BOARD_LATE_INITIALIZE=y :
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* Called from board_late_initialize().
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*
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* CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_BOARDCTL=y :
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* Called from the NSH library
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*
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****************************************************************************/
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int stm32_bringup(void)
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{
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int ret;
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#ifdef CONFIG_FS_PROCFS
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/* Mount the procfs file system */
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ret = mount(NULL, "/proc", "procfs", 0, NULL);
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if (ret < 0)
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{
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ferr("ERROR: Failed to mount procfs at /proc: %d\n", ret);
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}
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#endif
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#if defined(CONFIG_I2C)
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i2c1_m = stm32_i2cbus_initialize(1);
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if (i2c1_m == NULL)
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{
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syslog(LOG_ERR, "ERROR: Failed to init i2c controller\n");
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return(-1);
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}
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ret = i2c_register(i2c1_m, DEVNO_ONE);
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: Failed to register I2C%d driver: %d\n",
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DEVNO_ONE, ret);
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stm32_i2cbus_uninitialize(i2c1_m);
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return -1;
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}
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#if defined(STM32U5_I2C2)
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i2c2_m = stm32_i2cbus_initialize(2);
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if (i2c2_m == NULL)
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{
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syslog(LOG_ERR, "ERROR: Failed to init i2c controller\n");
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return(-1);
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}
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ret = i2c_register(i2c2_m, DEVNO_TWO);
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: Failed to register I2C%d driver: %d\n",
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DEVNO_TWO, ret);
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stm32_i2cbus_uninitialize(i2c1_m);
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stm32_i2cbus_uninitialize(i2c2_m);
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return -1;
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}
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#endif /* STM32_I2C2 */
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#endif /* CONFIG_I2C */
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#if defined(CONFIG_RTC) && defined(CONFIG_RTC_EXTERNAL) && defined(CONFIG_RTC_DSXXXX)
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ret = dsxxxx_rtc_initialize(i2c1_m);
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: dsxxxx_rtc_initialize() failed: %d\n", ret);
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}
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else
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{
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/* Synchronize the system time to the RTC time */
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syslog(LOG_INFO, "INFO: clock sync\n");
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clock_synchronize(NULL);
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}
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#endif /* CONFIG_RTC */
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UNUSED(ret);
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return OK;
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}
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