boards/common/e104-bt50xxa-tb: enable software reset

boards/common/e104-bt50xxa-tb/Makefile.dep

@@ -2,4 +2,11 @@ ifneq (,$(filter saul_default,$(USEMODULE)))
   USEMODULE += saul_gpio
 endif
 
+# used for software reset
+ifneq (,$(filter board_software_reset,$(USEMODULE)))
+  FEATURES_REQUIRED += periph_gpio_irq
+endif
+
+DEFAULT_MODULE += board_software_reset
+
 include $(RIOTBOARD)/common/nrf52/Makefile.dep

boards/common/e104-bt50xxa-tb/board.c

@@ -20,6 +20,9 @@
 
 #include "cpu.h"
 #include "board.h"
+#include "periph/gpio.h"
+
+extern void pm_reboot(void*);
 
 void board_init(void)
 {
@@ -27,6 +30,12 @@ void board_init(void)
     LED_PORT->DIRSET = (LED_MASK);
     LED_PORT->OUTSET = (LED_MASK);
 
+    /* configure software RST button */
+#ifdef MODULE_BOARD_SOFTWARE_RESET
+    gpio_init_int(BTN0_PIN, BTN0_MODE, GPIO_FALLING,
+                  pm_reboot, NULL);
+#endif
+
     /* initialize the CPU */
     cpu_init();
 }

boards/common/e104-bt50xxa-tb/include/gpio_params.h

@@ -43,18 +43,20 @@ static const  saul_gpio_params_t saul_gpio_params[] =
         .mode = GPIO_OUT,
         .flags = SAUL_GPIO_INVERTED,
     },
-    {
-        .name = "BTN (RTS)",
-        .pin  = BTN0_PIN,
-        .mode = BTN0_MODE,
-        .flags = SAUL_GPIO_INVERTED,
-    },
     {
         .name = "BTN (DBG)",
         .pin  = BTN1_PIN,
         .mode = BTN1_MODE,
         .flags = SAUL_GPIO_INVERTED,
     },
+#ifndef MODULE_BOARD_SOFTWARE_RESET
+    {
+        .name = "BTN (RST)",
+        .pin  = BTN0_PIN,
+        .mode = BTN0_MODE,
+        .flags = SAUL_GPIO_INVERTED,
+    },
+#endif
 };
 
 #ifdef __cplusplus

makefiles/pseudomodules.inc.mk

@@ -6,6 +6,7 @@ PSEUDOMODULES += at_urc_isr_highest
 PSEUDOMODULES += at24c%
 PSEUDOMODULES += atomic_utils
 PSEUDOMODULES += base64url
+PSEUDOMODULES += board_software_reset
 PSEUDOMODULES += can_mbox
 PSEUDOMODULES += can_pm
 PSEUDOMODULES += can_raw