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boards/risc-v/esp32p4: Add LPSPI and SPI3 board support

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Add LPSPI and SPI3 board support for esp32[-p4]

Signed-off-by: Eren Terzioglu <eren.terzioglu@espressif.com>
This commit is contained in:
Eren Terzioglu
2026-05-19 02:04:35 +08:00
committed by Xiang Xiao
parent 6497d57c30
commit 87b63402a7
5 changed files with 126 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
arch/risc-v/src/common/espressif/Kconfig
+2 -2
View File
@@ -1783,7 +1783,7 @@ config ESPRESSIF_SPI_SLAVE
config ESPRESSIF_SPI_PERIPH
bool
depends on ESPRESSIF_SPI2
depends on ESPRESSIF_SPI2 || ESPRESSIF_SPI3 || ESPRESSIF_LPSPI0
default n
config ESPRESSIF_SPI2
@@ -1802,7 +1802,7 @@ config ESPRESSIF_SPI3
select ESPRESSIF_SPI_PERIPH
config ESPRESSIF_LPSPI0
bool "LP SPI"
bool "LP SPI0"
depends on ARCH_CHIP_ESP32P4
default n
select ESPRESSIF_SPI
boards/risc-v/esp32p4/common/include/esp_board_spidev.h
+2 -1
View File
@@ -67,7 +67,8 @@ extern "C"
*
****************************************************************************/
#if defined(CONFIG_ESPRESSIF_SPI2) || defined(CONFIG_ESPRESSIF_SPI_BITBANG)
#if defined(CONFIG_ESPRESSIF_SPI2) || defined(CONFIG_ESPRESSIF_SPI_BITBANG) \
|| defined(CONFIG_ESPRESSIF_SPI3) || defined(CONFIG_ESPRESSIF_LPSPI0)
int board_spidev_initialize(int bus);
#endif
boards/risc-v/esp32p4/common/src/esp_board_spi.c
+64
View File
@@ -57,6 +57,17 @@ uint8_t esp_spi2_status(struct spi_dev_s *dev, uint32_t devid)
#endif
/****************************************************************************
* Name: esp_spi2_select
****************************************************************************/
#if defined(CONFIG_ESPRESSIF_SPI2) && defined(CONFIG_ESPRESSIF_SPI_UDCS)
void esp_spi2_select(struct spi_dev_s *dev, uint32_t devid, bool select)
{
esp_gpiowrite(CONFIG_ESPRESSIF_SPI2_CSPIN, !select);
}
#endif
/****************************************************************************
* Name: esp_spi2_cmddata
****************************************************************************/
@@ -83,3 +94,56 @@ int esp_spi2_cmddata(struct spi_dev_s *dev, uint32_t devid, bool cmd)
}
#endif
#ifdef CONFIG_ESPRESSIF_SPI3
/****************************************************************************
* Name: esp_spi3_status
****************************************************************************/
uint8_t esp_spi3_status(struct spi_dev_s *dev, uint32_t devid)
{
uint8_t status = 0;
return status;
}
#endif
/****************************************************************************
* Name: esp_spi2_select
****************************************************************************/
#if defined(CONFIG_ESPRESSIF_SPI3) && defined(CONFIG_ESPRESSIF_SPI_UDCS)
void esp_spi3_select(struct spi_dev_s *dev, uint32_t devid, bool select)
{
esp_gpiowrite(CONFIG_ESPRESSIF_SPI3_CSPIN, !select);
}
#endif
/****************************************************************************
* Name: esp_spi3_cmddata
****************************************************************************/
#if defined(CONFIG_ESPRESSIF_SPI3) && defined(CONFIG_SPI_CMDDATA)
int esp_spi3_cmddata(struct spi_dev_s *dev, uint32_t devid, bool cmd)
{
if (devid == SPIDEV_DISPLAY(0))
{
/* This is the Data/Command control pad which determines whether the
* data bits are data or a command.
*/
esp_gpiowrite(CONFIG_ESPRESSIF_SPI3_MISOPIN, !cmd);
return OK;
}
spiinfo("devid: %" PRIu32 " CMD: %s\n", devid, cmd ? "command" :
"data");
return -ENODEV;
}
#endif
boards/risc-v/esp32p4/common/src/esp_board_spidev.c
+33
View File
@@ -122,6 +122,15 @@ static int spi_driver_init(int port)
return -ENODEV;
}
#ifdef CONFIG_ESPRESSIF_LPSPI0
/* LP SPI cannot be used on HP core due to common layer driver */
if (port == ESPRESSIF_LPSPI0)
{
return OK;
}
#endif
ret = spi_register(spi, port);
if (ret < 0)
{
@@ -170,6 +179,18 @@ int board_spidev_initialize(int port)
}
#endif
#ifdef CONFIG_ESPRESSIF_SPI3
case ESPRESSIF_SPI3:
{
ret = spi_driver_init(ESPRESSIF_SPI3);
if (ret != OK)
{
return ret;
}
break;
}
#endif
#ifdef CONFIG_ESPRESSIF_SPI_BITBANG
case ESPRESSIF_SPI_BITBANG:
{
@@ -182,6 +203,18 @@ int board_spidev_initialize(int port)
}
#endif
#ifdef CONFIG_ESPRESSIF_LPSPI0
case ESPRESSIF_LPSPI0:
{
ret = spi_driver_init(ESPRESSIF_LPSPI0);
if (ret != OK)
{
return ret;
}
break;
}
#endif
default:
{
wderr("ERROR: unsupported SPI %d\n", port);
boards/risc-v/esp32p4/esp32p4-function-ev-board/src/esp32p4_bringup.c
+25 -2
View File
@@ -258,14 +258,14 @@ int esp_bringup(void)
#endif
#ifdef CONFIG_ESPRESSIF_SPI
# ifdef CONFIG_ESPRESSIF_SPI_SLAVE
# if defined(CONFIG_ESPRESSIF_SPI2_SLAVE) && defined(CONFIG_ESPRESSIF_SPI2)
ret = board_spislavedev_initialize(ESPRESSIF_SPI2);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize SPI%d Slave driver: %d\n",
ESPRESSIF_SPI2, ret);
}
# else
# elif defined(CONFIG_ESPRESSIF_SPI2)
ret = board_spidev_initialize(ESPRESSIF_SPI2);
if (ret < 0)
{
@@ -273,6 +273,21 @@ int esp_bringup(void)
}
# endif
# if defined(CONFIG_ESPRESSIF_SPI3_SLAVE) && defined(CONFIG_ESPRESSIF_SPI3)
ret = board_spislavedev_initialize(ESPRESSIF_SPI3);
if (ret < 0)
{
syslog(LOG_ERR, "Failed to initialize SPI%d Slave driver: %d\n",
ESPRESSIF_SPI3, ret);
}
# elif defined(CONFIG_ESPRESSIF_SPI3)
ret = board_spidev_initialize(ESPRESSIF_SPI3);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init spidev 3: %d\n", ret);
}
# endif
# ifdef CONFIG_ESPRESSIF_SPI_BITBANG
ret = board_spidev_initialize(ESPRESSIF_SPI_BITBANG);
if (ret < 0)
@@ -280,6 +295,14 @@ int esp_bringup(void)
syslog(LOG_ERR, "ERROR: Failed to init spidev 3: %d\n", ret);
}
# endif /* CONFIG_ESPRESSIF_SPI_BITBANG */
# ifdef CONFIG_ESPRESSIF_LPSPI0
ret = board_spidev_initialize(ESPRESSIF_LPSPI0);
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init lpspi: %d\n", ret);
}
# endif
#endif /* CONFIG_ESPRESSIF_SPI */
#ifdef CONFIG_ESPRESSIF_SPIFLASH