cpu/cc2538: Add Kconfig cpu and radio

cpu/cc2538/Kconfig

@@ -21,6 +21,7 @@ config CPU_FAM_CC2538
     select HAS_PERIPH_UART_NONBLOCKING
     select HAS_PERIPH_RTT_OVERFLOW
     select HAS_PERIPH_WDT
+    select HAVE_CC2538_RF
 
 ## CPU Models
 config CPU_MODEL_CC2538NF53
@@ -48,4 +49,9 @@ config CPU_MODEL
 config CPU
     default "cc2538" if CPU_FAM_CC2538
 
+config MODULE_PERIPH_UART_NONBLOCKING
+    bool
+    depends on HAS_PERIPH_UART_NONBLOCKING
+    select MODULE_TSRB
+
 source "$(RIOTCPU)/cortexm_common/Kconfig"

cpu/cc2538/Makefile.features

@@ -15,3 +15,9 @@ FEATURES_PROVIDED += periph_wdt
 FEATURES_PROVIDED += cortexm_mpu
 
 include $(RIOTCPU)/cortexm_common/Makefile.features
+
+# This configuration enables modules that are only available when using Kconfig
+# module modelling
+ifeq (1, $(TEST_KCONFIG))
+  KCONFIG_ADD_CONFIG += $(RIOTCPU)/cc2538/cc2538.config
+endif

cpu/cc2538/cc2538.config

@@ -0,0 +1 @@
+CONFIG_MODULE_PM_LAYERED=y

cpu/cc2538/radio/Kconfig

@@ -0,0 +1,30 @@
+# Copyright (c) 2021 HAW Hamburg
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+#
+
+menuconfig MODULE_CC2538_RF
+    bool "CC2538 IEEE 802.15.4 radio"
+    depends on TEST_KCONFIG
+    depends on CPU_FAM_CC2538
+
+if MODULE_CC2538_RF
+
+config MODULE_CC2538_RF_OBS_SIG
+    bool "Output observation signals"
+    help
+        Say y to output different observation signals from the RF Core
+        to GPIO pins. These signals can be useful for debugging of
+        low-level protocols or control of external PA, LNA, or switches.
+
+        For more information check section 9.2.4 of the CC2538 User's Manual.
+
+endif # MODULE_CC2538_RF
+
+config HAVE_CC2538_RF
+    bool
+    select MODULE_CC2538_RF if MODULE_NETDEV_DEFAULT
+    help
+        Indicates that a cc2538 radio is present.

drivers/Kconfig.net

@@ -9,6 +9,7 @@ rsource "at86rf215/Kconfig"
 rsource "ata8520e/Kconfig"
 rsource "can_trx/Kconfig"
 rsource "cc110x/Kconfig"
+source "$(RIOTCPU)/cc2538/radio/Kconfig"
 rsource "dose/Kconfig"
 rsource "mcp2515/Kconfig"
 rsource "mrf24j40/Kconfig"