18c2ecf20Sopenharmony_ciBindings for MEN A21 Watchdog device connected to GPIO lines 28c2ecf20Sopenharmony_ci 38c2ecf20Sopenharmony_ciRequired properties: 48c2ecf20Sopenharmony_ci- compatible: "men,a021-wdt" 58c2ecf20Sopenharmony_ci- gpios: Specifies the pins that control the Watchdog, order: 68c2ecf20Sopenharmony_ci 1: Watchdog enable 78c2ecf20Sopenharmony_ci 2: Watchdog fast-mode 88c2ecf20Sopenharmony_ci 3: Watchdog trigger 98c2ecf20Sopenharmony_ci 4: Watchdog reset cause bit 0 108c2ecf20Sopenharmony_ci 5: Watchdog reset cause bit 1 118c2ecf20Sopenharmony_ci 6: Watchdog reset cause bit 2 128c2ecf20Sopenharmony_ci 138c2ecf20Sopenharmony_ciOptional properties: 148c2ecf20Sopenharmony_ci- None 158c2ecf20Sopenharmony_ci 168c2ecf20Sopenharmony_ciExample: 178c2ecf20Sopenharmony_ci watchdog { 188c2ecf20Sopenharmony_ci compatible ="men,a021-wdt"; 198c2ecf20Sopenharmony_ci gpios = <&gpio3 9 1 /* WD_EN */ 208c2ecf20Sopenharmony_ci &gpio3 10 1 /* WD_FAST */ 218c2ecf20Sopenharmony_ci &gpio3 11 1 /* WD_TRIG */ 228c2ecf20Sopenharmony_ci &gpio3 6 1 /* RST_CAUSE[0] */ 238c2ecf20Sopenharmony_ci &gpio3 7 1 /* RST_CAUSE[1] */ 248c2ecf20Sopenharmony_ci &gpio3 8 1>; /* RST_CAUSE[2] */ 258c2ecf20Sopenharmony_ci }; 26