drivers: can: support NXP S32 CANEXCEL

This patch introduces support for NXP S32 CANEXCEL (CANXL) peripheral.

CAN protocol supporting:
- CAN classic
- CAN FD

Remote transmission request is not supported as this feature is not
available on NXP S32 CANXL HAL.

Signed-off-by: Cong Nguyen Huu <cong.nguyenhuu@nxp.com>

drivers/can/CMakeLists.txt

@@ -36,5 +36,6 @@ zephyr_library_sources_ifdef(CONFIG_CAN_KVASER_PCI   can_kvaser_pci.c)
 
 zephyr_library_sources_ifdef(CONFIG_USERSPACE        can_handlers.c)
 zephyr_library_sources_ifdef(CONFIG_CAN_SHELL        can_shell.c)
+zephyr_library_sources_ifdef(CONFIG_CAN_NXP_S32_CANXL    can_nxp_s32_canxl.c)
 
 add_subdirectory(transceiver)

drivers/can/Kconfig

@@ -99,6 +99,7 @@ source "drivers/can/Kconfig.sja1000"
 source "drivers/can/Kconfig.esp32"
 source "drivers/can/Kconfig.kvaser"
 source "drivers/can/Kconfig.fake"
+source "drivers/can/Kconfig.nxp_s32"
 
 source "drivers/can/transceiver/Kconfig"
 

drivers/can/Kconfig.nxp_s32

@@ -0,0 +1,27 @@
+# Copyright 2022 NXP
+# SPDX-License-Identifier: Apache-2.0
+
+config CAN_NXP_S32_CANXL
+	bool "NXP S32 CANXL driver"
+	default y
+	depends on DT_HAS_NXP_S32_CANXL_ENABLED
+	help
+	  Enable support for NXP S32 CANXL driver.
+
+if CAN_NXP_S32_CANXL
+config CAN_NXP_S32_MAX_RX
+	int "Maximum number of RX descriptors"
+	depends on CAN_NXP_S32_CANXL
+	default 16
+	range 1 128
+	help
+	  Maximum number of RX descriptors.
+
+config CAN_NXP_S32_MAX_TX
+	int "Maximum number of TX descriptors"
+	depends on CAN_NXP_S32_CANXL
+	default 16
+	range 1 128
+	help
+	  Maximum number of TX descriptors.
+endif # CAN_NXP_S32_CANXL

dts/bindings/can/nxp,s32-canxl.yaml

@@ -0,0 +1,27 @@
+# Copyright 2022 NXP
+#
+# SPDX-License-Identifier: Apache-2.0
+
+description: NXP S32 CANXL controller
+
+compatible: "nxp,s32-canxl"
+
+include: ["can-fd-controller.yaml", "pinctrl-device.yaml"]
+
+properties:
+  reg:
+    required: true
+
+  interrupts:
+    required: true
+
+  clock-frequency:
+    type: int
+    required: true
+    description: Module clock frequency in Hz.
+
+  pinctrl-0:
+    required: true
+
+  pinctrl-names:
+    required: true