commit b4c04d3393dadfce36064326fd7f8baa849b80be
author Bartosz Bilas <b.bilas@grinn-global.com> Fri Jul 15 13:23:12 2022 +0200
committer Andrzej Puzdrowski <andrzej.puzdrowski@nordicsemi.no> Wed Aug 03 17:08:22 2022 +0200
tree d32eed60b2e8c64dfe43f0d330e695cfc9ae1d60
parent 8eadf8c2d049398380312eb8b874004b9a8270a1

boot: zephyr: add support for generic watchdog alias

Add possibility to pass generic watchdog alias
no matter what vendor is used.

Signed-off-by: Bartosz Bilas <b.bilas@grinn-global.com>

boot/zephyr/include/mcuboot_config/mcuboot_config.h

diff --git a/boot/zephyr/include/mcuboot_config/mcuboot_config.h b/boot/zephyr/include/mcuboot_config/mcuboot_config.h
index c5d0392..58dd919 100644
--- a/boot/zephyr/include/mcuboot_config/mcuboot_config.h
+++ b/boot/zephyr/include/mcuboot_config/mcuboot_config.h
@@ -232,6 +232,7 @@
 #endif
 
 #if CONFIG_BOOT_WATCHDOG_FEED
+#include <zephyr/devicetree.h>
 #if CONFIG_NRFX_WDT
 #include <nrfx_wdt.h>
 
@@ -268,7 +269,19 @@
         wdt_feed(wdt, 0);                                   \
     } while (0)
 
-#else /* CONFIG_IWDG_STM32 */
+#elif DT_NODE_HAS_STATUS(DT_ALIAS(watchdog0), okay) /* CONFIG_IWDG_STM32 */
+#include <zephyr/device.h>
+#include <zephyr/drivers/watchdog.h>
+
+#define MCUBOOT_WATCHDOG_FEED()                               \
+    do {                                                      \
+        const struct device* wdt =                            \
+            DEVICE_DT_GET(DT_ALIAS(watchdog0));               \
+        if (device_is_ready(wdt)) {                           \
+                wdt_feed(wtd, 0);                             \
+        }                                                     \
+    } while (0)
+#else /* DT_NODE_HAS_STATUS(DT_ALIAS(watchdog0), okay) */
 #warning "MCUBOOT_WATCHDOG_FEED() is no-op"
 /* No vendor implementation, no-op for historical reasons */
 #define MCUBOOT_WATCHDOG_FEED()         \