DellEMC: S52xx Reboot cause fix (#10783)

Author: aravindmani-1

platform/broadcom/sonic-platform-modules-dell/s5232f/sonic_platform/chassis.py

@@ -38,7 +38,7 @@ class Chassis(ChassisBase):
 
     oir_fd = -1
     epoll = -1
-
+    REBOOT_CAUSE_PATH = "/host/reboot-cause/platform/reboot_reason"
     _global_port_pres_dict = {}
 
     def __init__(self):
@@ -239,15 +239,15 @@ def get_reboot_cause(self):
             return (self.REBOOT_CAUSE_NON_HARDWARE, None)
 
         if reboot_cause & 0x1:
-            return (self.REBOOT_CAUSE_POWER_LOSS, None)
+            return (self.REBOOT_CAUSE_POWER_LOSS, "Power on reset")
         elif reboot_cause & 0x2:
             return (self.REBOOT_CAUSE_NON_HARDWARE, None)
         elif reboot_cause & 0x4:
             return (self.REBOOT_CAUSE_HARDWARE_OTHER, "PSU Shutdown")
         elif reboot_cause & 0x8:
-            return (self.REBOOT_CAUSE_THERMAL_OVERLOAD_CPU, None)
+            return (self.REBOOT_CAUSE_THERMAL_OVERLOAD_CPU, "Thermal overload")
         elif reboot_cause & 0x10:
-            return (self.REBOOT_CAUSE_WATCHDOG, None)
+            return (self.REBOOT_CAUSE_WATCHDOG, "Watchdog reset")
         elif reboot_cause & 0x20:
             return (self.REBOOT_CAUSE_HARDWARE_OTHER, "BMC Shutdown")
         elif reboot_cause & 0x40:

platform/broadcom/sonic-platform-modules-dell/s5248f/sonic_platform/chassis.py

@@ -309,6 +309,7 @@ def get_num_sfps(self):
             An integer represences the number of SFPs on the chassis.
         """
         return self._num_sfps
+
     def get_reboot_cause(self):
         """
         Retrieves the cause of the previous reboot
@@ -326,15 +327,15 @@ def get_reboot_cause(self):
             return (self.REBOOT_CAUSE_NON_HARDWARE, None)
 
         if reboot_cause & 0x1:
-            return (self.REBOOT_CAUSE_POWER_LOSS, None)
+            return (self.REBOOT_CAUSE_POWER_LOSS, "Power on reset")
         elif reboot_cause & 0x2:
             return (self.REBOOT_CAUSE_NON_HARDWARE, None)
         elif reboot_cause & 0x4:
             return (self.REBOOT_CAUSE_HARDWARE_OTHER, "PSU Shutdown")
         elif reboot_cause & 0x8:
-            return (self.REBOOT_CAUSE_THERMAL_OVERLOAD_CPU, None)
+            return (self.REBOOT_CAUSE_THERMAL_OVERLOAD_CPU, "Thermal overload")
         elif reboot_cause & 0x10:
-            return (self.REBOOT_CAUSE_WATCHDOG, None)
+            return (self.REBOOT_CAUSE_WATCHDOG, "Watchdog reset")
         elif reboot_cause & 0x20:
             return (self.REBOOT_CAUSE_HARDWARE_OTHER, "BMC Shutdown")
         elif reboot_cause & 0x40: