Nuvoton: Fix watchdog reset failure on meeting Hard Fault

Original implementation doesn't enable watchdog reset in pieces of cascaded timeout, except the last one. This is to guarantee re-configuration can be in time, but in interrupt disabled scenario e.g. Hard Fault, watchdog reset can cease to be effective.

This change enables watchdog reset all the way of cascaded timeout. With trade-off, guaranteed watchdog reset function is more significant than re-configuration in time.

Author: ccli8

targets/TARGET_NUVOTON/TARGET_M451/watchdog_api.c

@@ -188,7 +188,7 @@ static void watchdog_setup_cascade_timeout(void)
         WDT_CTL_WKEN_Msk |                                  // Enable wake-up on timeout
         WDT_CTL_IF_Msk |                                    // Clear interrupt flag
         WDT_CTL_RSTF_Msk |                                  // Clear reset flag
-        (wdt_timeout_rmn_clk ? 0 : WDT_CTL_RSTEN_Msk) |     // Enable reset on last cascaded timeout
+        WDT_CTL_RSTEN_Msk |                                 // Enable reset always to address cascaded timeout failure in interrupt disabled scenario e.g. Hard Fault
         WDT_CTL_RSTCNT_Msk;                                 // Reset watchdog timer
 
     SYS_LockReg();

targets/TARGET_NUVOTON/TARGET_M480/watchdog_api.c

@@ -188,7 +188,7 @@ static void watchdog_setup_cascade_timeout(void)
         WDT_CTL_WKEN_Msk |                                  // Enable wake-up on timeout
         WDT_CTL_IF_Msk |                                    // Clear interrupt flag
         WDT_CTL_RSTF_Msk |                                  // Clear reset flag
-        (wdt_timeout_rmn_clk ? 0 : WDT_CTL_RSTEN_Msk) |     // Enable reset on last cascaded timeout
+        WDT_CTL_RSTEN_Msk |                                 // Enable reset always to address cascaded timeout failure in interrupt disabled scenario e.g. Hard Fault
         WDT_CTL_RSTCNT_Msk;                                 // Reset watchdog timer
 
     SYS_LockReg();

targets/TARGET_NUVOTON/TARGET_NANO100/watchdog_api.c

@@ -193,7 +193,7 @@ static void watchdog_setup_cascade_timeout(void)
         wdt_timeout_clk_toutsel |                           // Timeout interval
         WDT_CTL_WTE_Msk |                                   // Enable watchdog timer
         WDT_CTL_WTWKE_Msk |                                 // Enable wake-up on timeout
-        (wdt_timeout_rmn_clk ? 0 : WDT_CTL_WTRE_Msk) |      // Enable reset on last cascaded timeout
+        WDT_CTL_WTRE_Msk |                                  // Enable reset always to address cascaded timeout failure in interrupt disabled scenario e.g. Hard Fault
         WDT_CTL_WTR_Msk;                                    // Reset watchdog timer
 
     SYS_LockReg();

targets/TARGET_NUVOTON/TARGET_NUC472/watchdog_api.c

@@ -187,7 +187,7 @@ static void watchdog_setup_cascade_timeout(void)
         WDT_CTL_WKEN_Msk |                                  // Enable wake-up on timeout
         WDT_CTL_IF_Msk |                                    // Clear interrupt flag
         WDT_CTL_RSTF_Msk |                                  // Clear reset flag
-        (wdt_timeout_rmn_clk ? 0 : WDT_CTL_RSTEN_Msk) |     // Enable reset on last cascaded timeout
+        WDT_CTL_RSTEN_Msk |                                 // Enable reset always to address cascaded timeout failure in interrupt disabled scenario e.g. Hard Fault
         WDT_CTL_RSTCNT_Msk;                                 // Reset watchdog timer
 
     SYS_LockReg();