[Mellanox] align platform reboot to use "hardware reboot" (#3321)

Signed-off-by: Mykola Faryma <mykolaf@mellanox.com>

device/mellanox/x86_64-mlnx_msn2700-r0/platform_reboot

@@ -4,6 +4,7 @@ declare -r EXIT_SUCCESS="0"
 declare -r EXIT_ERROR="1"
 
 declare -r FW_UPGRADE_SCRIPT="/usr/bin/mlnx-fw-upgrade.sh"
+declare -r SYSFS_PWR_CYCLE="/sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pwr_cycle"
 
 FORCE_REBOOT="no"
 
@@ -20,7 +21,7 @@ function ParseArguments() {
 
 ParseArguments "$@"
 
-${FW_UPGRADE_SCRIPT} --upgrade
+${FW_UPGRADE_SCRIPT} --upgrade --verbose
 EXIT_CODE="$?"
 if [[ "${EXIT_CODE}" != "${EXIT_SUCCESS}" ]]; then
     echo "Failed to burn MLNX FW: errno=${EXIT_CODE}"
@@ -31,4 +32,7 @@ if [[ "${EXIT_CODE}" != "${EXIT_SUCCESS}" ]]; then
     fi
 fi
 
-exec /sbin/reboot $@
+# perform "hardware" reboot
+echo 1 > $SYSFS_PWR_CYCLE
+sleep 3
+echo 0 > $SYSFS_PWR_CYCLE

device/mellanox/x86_64-mlnx_msn2700_simx-r0/platform_reboot

@@ -1 +0,0 @@
-../x86_64-mlnx_msn2700-r0/platform_reboot

device/mellanox/x86_64-mlnx_msn2700_simx-r0/platform_reboot

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+declare -r EXIT_SUCCESS="0"
+declare -r EXIT_ERROR="1"
+
+FORCE_REBOOT="no"
+
+function ParseArguments() {
+    while [ $# -ge 1 ]; do
+        case "$1" in
+            -f|--force)
+                FORCE_REBOOT="yes"
+            ;;
+        esac
+        shift
+    done
+}
+
+ParseArguments "$@"
+
+exec /sbin/reboot $@

device/mellanox/x86_64-mlnx_msn3700_simx-r0/platform_reboot

@@ -1 +1 @@
-../x86_64-mlnx_msn3700-r0/platform_reboot
+../x86_64-mlnx_msn2700_simx-r0/platform_reboot