drivers: spi: Initial support SPI driver on Renesas RX130

Initial commit for SPI driver support on RSK_RX130@512KB board
with RSPI module

Signed-off-by: Duy Nguyen <[email protected]>
Signed-off-by: Minh Tang <[email protected]>

Author: duynguyenxa

drivers/spi/CMakeLists.txt

@@ -50,6 +50,7 @@ zephyr_library_sources_ifdef(CONFIG_SPI_PSOC6 spi_psoc6.c)
 zephyr_library_sources_ifdef(CONFIG_SPI_PW spi_pw.c)
 zephyr_library_sources_ifdef(CONFIG_SPI_RENESAS_RA spi_renesas_ra.c)
 zephyr_library_sources_ifdef(CONFIG_SPI_RENESAS_RA8 spi_b_renesas_ra8.c)
+zephyr_library_sources_ifdef(CONFIG_SPI_RENESAS_RX spi_renesas_rx.c)
 zephyr_library_sources_ifdef(CONFIG_SPI_RENESAS_RZ_RSPI spi_renesas_rz_rspi.c)
 zephyr_library_sources_ifdef(CONFIG_SPI_RPI_PICO_PIO spi_rpi_pico_pio.c)
 zephyr_library_sources_ifdef(CONFIG_SPI_RV32M1_LPSPI spi_rv32m1_lpspi.c)

drivers/spi/Kconfig

@@ -128,6 +128,7 @@ source "drivers/spi/Kconfig.psoc6"
 source "drivers/spi/Kconfig.pw"
 source "drivers/spi/Kconfig.renesas_ra"
 source "drivers/spi/Kconfig.renesas_ra8"
+source "drivers/spi/Kconfig.renesas_rx"
 source "drivers/spi/Kconfig.renesas_rz"
 source "drivers/spi/Kconfig.rpi_pico"
 source "drivers/spi/Kconfig.rv32m1_lpspi"

drivers/spi/Kconfig.renesas_rx

@@ -0,0 +1,32 @@
+# Copyright (c) 2025 Renesas Electronics Corporation
+# SPDX-License-Identifier: Apache-2.0
+
+config SPI_RENESAS_RX
+	bool "Renesas RX Series SPI Driver"
+	default y
+	depends on DT_HAS_RENESAS_RX_RSPI_ENABLED
+	select USE_RX_RDP_RSPI
+	help
+	  Enable Renesas RX series SPI driver.
+
+if SPI_RENESAS_RX
+
+config SPI_RENESAS_RX_INTERRUPT
+	bool "RX MCU RSPI Interrupt Support"
+	default y
+	help
+	  Enable Interrupt Support for the RSPI Driver of RX family.
+
+config SPI_RENESAS_RX_USE_HW_SS
+	bool "RX MCU RSPI Hardware Slave Select support"
+	default y
+	help
+	  Use Slave Select pin instead of software Slave Select.
+
+config SPI_RENESAS_RX_HIGH_SPEED_READ
+	bool "RX MCU RSPI high speed read mode"
+	default y
+	help
+	  Enable high speed read mode of RX RSPI Driver
+
+endif # SPI_RENESAS_RX