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boards/stm32h5/nucleo-h563zi: Register SPI1 spidev.
Add board spi1 initialization and generic spi chardev registration for nucleo-h563zi. Specify the SPI1 clock source and frequency on this board for the spi driver. Define the SPI pins for this board. The SPI_A CN7 header pins were used. Include stm32_spi.h in stm32h5/stm32.h. Signed-off-by: Liam Howatt <liamhowatt@geotab.com>
This commit is contained in:
Liam Howatt
Xiang Xiao
parent
4cf4c5d710
commit
4d1dc6334a
6 changed files with 242 additions and 0 deletions
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@ -47,6 +47,7 @@
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#include "stm32_lowputc.h"
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#include "stm32_pwr.h"
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#include "stm32_rcc.h"
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#include "stm32_spi.h"
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#include "stm32_tim.h"
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#include "stm32_uart.h"
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#include "stm32_usbfs.h"
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@ -183,6 +183,10 @@
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#endif /* CONFIG_STM32_USE_HSE*/
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/* Select the SPI1 clock and tell driver the frequency */
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#define STM32_RCC_CCIPR3_SPI1SEL RCC_CCIPR3_SPI1SEL_PLL1QCK
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#define STM32_SPI1_FREQUENCY STM32_PLL1Q_FREQUENCY
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/* Enable CLK48; get it from HSI48 */
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#if defined(CONFIG_STM32_USBFS) || defined(CONFIG_STM32_RNG)
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@ -332,6 +336,15 @@
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/* Alternate function pin selections ****************************************/
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/* SPI1: Arduino Connector CN7 */
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#define GPIO_SPI1_NSS (GPIO_OUTPUT|GPIO_SPEED_2MHZ| \
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GPIO_PUSHPULL|GPIO_OUTPUT_SET| \
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GPIO_PORTD|GPIO_PIN14) /* PD14 */
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#define GPIO_SPI1_SCK (GPIO_SPI1_SCK_1|GPIO_SPEED_50MHZ) /* PA5 */
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#define GPIO_SPI1_MISO (GPIO_SPI1_MISO_3) /* PG9 */
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#define GPIO_SPI1_MOSI (GPIO_SPI1_MOSI_2|GPIO_SPEED_50MHZ) /* PB5 */
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/* ADC GPIOs ****************************************************************/
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#define GPIO_ADC1_INP3 (GPIO_ADC1_INP3_0)
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@ -34,6 +34,10 @@ ifeq ($(CONFIG_ARCH_BUTTONS),y)
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CSRCS += stm32_buttons.c
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endif
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ifeq ($(CONFIG_STM32_SPI),y)
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CSRCS += stm32_spi.c
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endif
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ifeq ($(CONFIG_ADC),y)
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CSRCS += stm32_adc.c
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endif
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@ -115,6 +115,31 @@
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int stm32_bringup(void);
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#ifdef CONFIG_STM32_SPI
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/****************************************************************************
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* Name: stm32_spiregister
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*
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* Description:
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* Called to register spi character driver of initialized
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* spi device for the Nucleo-L432KC board.
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*
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****************************************************************************/
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#ifdef CONFIG_SPI_DRIVER
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void stm32_spiregister(void);
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#endif
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/****************************************************************************
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* Name: stm32_spiinitialize
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*
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* Description:
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* Called to configure SPI chip select GPIO pins.
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*
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****************************************************************************/
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void stm32_spiinitialize(void);
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#endif /* CONFIG_STM32_SPI */
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/****************************************************************************
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* Name: stm32_adc_setup
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*
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@ -146,6 +146,18 @@ int stm32_bringup(void)
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# endif
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#endif
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#ifdef CONFIG_STM32_SPI
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/* Cannot call at board init because irq_attach would be called before
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* before irq_initialize is called.
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*/
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stm32_spiinitialize();
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#ifdef CONFIG_SPI_DRIVER
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stm32_spiregister();
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#endif
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#endif /* CONFIG_STM32_SPI */
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#ifdef CONFIG_PWM
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/* Initialize PWM and register the PWM device. */
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187
boards/arm/stm32h5/nucleo-h563zi/src/stm32_spi.c
Normal file
187
boards/arm/stm32h5/nucleo-h563zi/src/stm32_spi.c
Normal file
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@ -0,0 +1,187 @@
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/****************************************************************************
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* boards/arm/stm32h5/nucleo-h563zi/src/stm32_spi.c
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*
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* SPDX-License-Identifier: Apache-2.0
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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 <stdint.h>
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#include <stdbool.h>
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#include <nuttx/debug.h>
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#include <errno.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/spi/spi_transfer.h>
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#include <arch/board/board.h>
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#include "chip.h"
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#include <stm32.h>
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#include "nucleo-h563zi.h"
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/* Global driver instances */
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#ifdef CONFIG_STM32_SPI1
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struct spi_dev_s *g_spi1;
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_spiregister
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*
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* Description:
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* Called to register spi character driver of
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* initialized spi device for the Nucleo-H563ZI board.
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*
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****************************************************************************/
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#ifdef CONFIG_SPI_DRIVER
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void stm32_spiregister(void)
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{
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#ifdef CONFIG_STM32_SPI1
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int ret = spi_register(g_spi1, 1);
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if (ret < 0)
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{
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spierr("ERROR: FAILED to register driver of SPI port 1\n");
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}
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#endif
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}
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#endif
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/****************************************************************************
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* Name: stm32_spiinitialize
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*
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* Description:
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* Called to configure SPI chip select GPIO pins for the Nucleo-H563ZI
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* board.
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*
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****************************************************************************/
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void stm32_spiinitialize(void)
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{
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/* NOTE: Clocking for SPI1 was already provided in stm32_rcc.c.
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* Configurations of SPI pins is performed in stm32_spi.c.
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* Here, we only initialize chip select pins unique to the board
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* architecture.
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*/
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#ifdef CONFIG_STM32_SPI1
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/* Configure SPI1-based devices */
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g_spi1 = stm32_spibus_initialize(1);
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if (!g_spi1)
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{
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spierr("ERROR: FAILED to initialize SPI port 1\n");
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}
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else
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{
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spiinfo("INFO: SPI port 1 initialized\n");
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}
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/* Setup CS, EN & IRQ line IOs */
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stm32_configgpio(GPIO_SPI1_NSS);
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#endif
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}
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/****************************************************************************
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* Name: stm32_spi1select and stm32_spi1status
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*
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* Description:
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* The external functions, stm32_spi1select and stm32_spi1status
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* must be provided by board-specific logic. They are implementations of
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* the select and status methods of the SPI interface defined by struct
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* spi_ops_s (see include/nuttx/spi/spi.h). All other methods (including
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* up_spiinitialize()) are provided by common STM32 logic. To use this
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* common SPI logic on your board:
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*
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* 1. Provide logic in stm32_board_initialize() to configure SPI chip
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* select pins.
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* 2. Provide stm32_spi1select() and stm32_spi1status() functions
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* in your board-specific logic. These functions will perform chip
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* selection and status operations using GPIOs in the way your board is
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* configured.
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* 3. Add a calls to up_spiinitialize() in your low level application
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* initialization logic
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* 4. The handle returned by up_spiinitialize() may then be used to bind
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* the SPI driver to higher level logic (e.g., calling
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* mmcsd_spislotinitialize(), for example, will bind the SPI driver to
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* the SPI MMC/SD driver).
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*
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****************************************************************************/
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#ifdef CONFIG_STM32_SPI1
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void stm32_spi1select(struct spi_dev_s *dev, uint32_t devid,
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bool selected)
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{
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spiinfo("devid: %08X CS: %s\n", (int)devid,
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selected ? "assert" : "de-assert");
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stm32_gpiowrite(GPIO_SPI1_NSS, !selected);
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}
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uint8_t stm32_spi1status(struct spi_dev_s *dev, uint32_t devid)
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{
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return 0;
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}
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#endif
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/****************************************************************************
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* Name: stm32_spi1cmddata
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*
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* Description:
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* Set or clear the SH1101A A0 or SD1306 D/C n bit to select data (true)
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* or command (false). This function must be provided by platform-specific
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* logic. This is an implementation of the cmddata method of the SPI
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* interface defined by struct spi_ops_s (see include/nuttx/spi/spi.h).
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*
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* Input Parameters:
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*
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* spi - SPI device that controls the bus the device that requires the CMD/
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* DATA selection.
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* devid - If there are multiple devices on the bus, this selects which one
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* to select cmd or data. NOTE: This design restricts, for example,
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* one one SPI display per SPI bus.
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* cmd - true: select command; false: select data
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*
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* Returned Value:
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* OK on success or negative error code
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*
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****************************************************************************/
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#ifdef CONFIG_SPI_CMDDATA
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#ifdef CONFIG_STM32_SPI1
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int stm32_spi1cmddata(struct spi_dev_s *dev, uint32_t devid, bool cmd)
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{
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return -ENODEV;
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}
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#endif
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#endif /* CONFIG_SPI_CMDDATA */
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