[devices]: Add support for the Nokia-7215 platform (#5827)

Platform: armhf-nokia_ixs7215_52x-r0
HwSKU: Nokia-7215
ASIC: marvell
Port Config: 48x1G + 4x10G

Co-authored-by: dflynn <dennis.flynn@nokia.com>
Co-authored-by: Carl Keene <keene@nokia.com>

device/nokia/armhf-nokia_ixs7215_52x-r0/Nokia-7215/buffers_defaults_t1.j2

@@ -0,0 +1,45 @@
+{%- set default_cable = '300m' %}
+
+{%- macro generate_port_lists(PORT_ALL) %}
+    {# Generate list of ports #}
+    {% for port_idx in range(0,32) %}
+        {% if PORT_ALL.append("Ethernet%d" % (port_idx * 4)) %}{% endif %}
+    {% endfor %}
+{%- endmacro %}
+
+{%- macro generate_buffer_pool_and_profiles() %}
+    "BUFFER_POOL": {
+        "ingress_lossless_pool": {
+            "size": "12766208",
+            "type": "ingress",
+            "mode": "dynamic"
+        },
+        "egress_lossless_pool": {
+            "size": "12766208",
+            "type": "egress",
+            "mode": "static"
+        },
+        "egress_lossy_pool": {
+            "size": "7326924",
+            "type": "egress",
+            "mode": "dynamic"
+        }
+    },
+    "BUFFER_PROFILE": {
+        "ingress_lossy_profile": {
+            "pool":"[BUFFER_POOL|ingress_lossless_pool]",
+            "size":"0",
+            "dynamic_th":"3"
+        },
+        "egress_lossless_profile": {
+            "pool":"[BUFFER_POOL|egress_lossless_pool]",
+            "size":"0",
+            "static_th":"12766208"
+        },
+        "egress_lossy_profile": {
+            "pool":"[BUFFER_POOL|egress_lossy_pool]",
+            "size":"1518",
+            "dynamic_th":"3"
+        }
+    },
+{%- endmacro %}

device/nokia/armhf-nokia_ixs7215_52x-r0/Nokia-7215/port_config.ini

@@ -0,0 +1,53 @@
+# name       lanes   alias        index     speed
+Ethernet0     1      Ethernet0     1        1000
+Ethernet1     2      Ethernet1     2        1000
+Ethernet2     3      Ethernet2     3        1000
+Ethernet3     4      Ethernet3     4        1000
+Ethernet4     5      Ethernet4     5        1000
+Ethernet5     6      Ethernet5     6        1000
+Ethernet6     7      Ethernet6     7        1000
+Ethernet7     8      Ethernet7     8        1000
+Ethernet8     9      Ethernet8     9        1000
+Ethernet9     10     Ethernet9     10       1000
+Ethernet10    11     Ethernet10    11       1000
+Ethernet11    12     Ethernet11    12       1000
+Ethernet12    13     Ethernet12    13       1000
+Ethernet13    14     Ethernet13    14       1000
+Ethernet14    15     Ethernet14    15       1000
+Ethernet15    16     Ethernet15    16       1000
+Ethernet16    17     Ethernet16    17       1000
+Ethernet17    18     Ethernet17    18       1000
+Ethernet18    19     Ethernet18    19       1000
+Ethernet19    20     Ethernet19    20       1000
+Ethernet20    21     Ethernet20    21       1000
+Ethernet21    22     Ethernet21    22       1000
+Ethernet22    23     Ethernet22    23       1000
+Ethernet23    24     Ethernet23    24       1000
+Ethernet24    25     Ethernet24    25       1000
+Ethernet25    26     Ethernet25    26       1000
+Ethernet26    27     Ethernet26    27       1000
+Ethernet27    28     Ethernet27    28       1000
+Ethernet28    29     Ethernet28    29       1000
+Ethernet29    30     Ethernet29    30       1000
+Ethernet30    31     Ethernet30    31       1000
+Ethernet31    32     Ethernet31    32       1000
+Ethernet32    33     Ethernet32    33       1000
+Ethernet33    34     Ethernet33    34       1000
+Ethernet34    35     Ethernet34    35       1000
+Ethernet35    36     Ethernet35    36       1000
+Ethernet36    37     Ethernet36    37       1000
+Ethernet37    38     Ethernet37    38       1000
+Ethernet38    39     Ethernet38    39       1000
+Ethernet39    40     Ethernet39    40       1000
+Ethernet40    41     Ethernet40    41       1000
+Ethernet41    42     Ethernet41    42       1000
+Ethernet42    43     Ethernet42    43       1000
+Ethernet43    44     Ethernet43    44       1000
+Ethernet44    45     Ethernet44    45       1000
+Ethernet45    46     Ethernet45    46       1000
+Ethernet46    47     Ethernet46    47       1000
+Ethernet47    48     Ethernet47    48       1000
+Ethernet48    49     Ethernet48    49       10000
+Ethernet49    50     Ethernet49    50       10000
+Ethernet50    51     Ethernet50    51       10000
+Ethernet51    52     Ethernet51    52       10000

device/nokia/armhf-nokia_ixs7215_52x-r0/Nokia-7215/port_config.ini.inband

@@ -0,0 +1,52 @@
+# name       lanes   alias        index     speed
+Ethernet0     1      Ethernet0     1        1000
+Ethernet1     2      Ethernet1     2        1000
+Ethernet2     3      Ethernet2     3        1000
+Ethernet3     4      Ethernet3     4        1000
+Ethernet4     5      Ethernet4     5        1000
+Ethernet5     6      Ethernet5     6        1000
+Ethernet6     7      Ethernet6     7        1000
+Ethernet7     8      Ethernet7     8        1000
+Ethernet8     9      Ethernet8     9        1000
+Ethernet9     10     Ethernet9     10       1000
+Ethernet10    11     Ethernet10    11       1000
+Ethernet11    12     Ethernet11    12       1000
+Ethernet12    13     Ethernet12    13       1000
+Ethernet13    14     Ethernet13    14       1000
+Ethernet14    15     Ethernet14    15       1000
+Ethernet15    16     Ethernet15    16       1000
+Ethernet16    17     Ethernet16    17       1000
+Ethernet17    18     Ethernet17    18       1000
+Ethernet18    19     Ethernet18    19       1000
+Ethernet19    20     Ethernet19    20       1000
+Ethernet20    21     Ethernet20    21       1000
+Ethernet21    22     Ethernet21    22       1000
+Ethernet22    23     Ethernet22    23       1000
+Ethernet23    24     Ethernet23    24       1000
+Ethernet24    25     Ethernet24    25       1000
+Ethernet25    26     Ethernet25    26       1000
+Ethernet26    27     Ethernet26    27       1000
+Ethernet27    28     Ethernet27    28       1000
+Ethernet28    29     Ethernet28    29       1000
+Ethernet29    30     Ethernet29    30       1000
+Ethernet30    31     Ethernet30    31       1000
+Ethernet31    32     Ethernet31    32       1000
+Ethernet32    33     Ethernet32    33       1000
+Ethernet33    34     Ethernet33    34       1000
+Ethernet34    35     Ethernet34    35       1000
+Ethernet35    36     Ethernet35    36       1000
+Ethernet36    37     Ethernet36    37       1000
+Ethernet37    38     Ethernet37    38       1000
+Ethernet38    39     Ethernet38    39       1000
+Ethernet39    40     Ethernet39    40       1000
+Ethernet40    41     Ethernet40    41       1000
+Ethernet41    42     Ethernet41    42       1000
+Ethernet42    43     Ethernet42    43       1000
+Ethernet43    44     Ethernet43    44       1000
+Ethernet44    45     Ethernet44    45       1000
+Ethernet45    46     Ethernet45    46       1000
+Ethernet46    47     Ethernet46    47       1000
+Ethernet48    49     Ethernet48    49       10000
+Ethernet49    50     Ethernet49    50       10000
+Ethernet50    51     Ethernet50    51       10000
+Ethernet51    52     Ethernet51    52       10000

device/nokia/armhf-nokia_ixs7215_52x-r0/Nokia-7215/port_config.ini.noinband

@@ -0,0 +1,53 @@
+# name       lanes   alias        index     speed
+Ethernet0     1      Ethernet0     1        1000
+Ethernet1     2      Ethernet1     2        1000
+Ethernet2     3      Ethernet2     3        1000
+Ethernet3     4      Ethernet3     4        1000
+Ethernet4     5      Ethernet4     5        1000
+Ethernet5     6      Ethernet5     6        1000
+Ethernet6     7      Ethernet6     7        1000
+Ethernet7     8      Ethernet7     8        1000
+Ethernet8     9      Ethernet8     9        1000
+Ethernet9     10     Ethernet9     10       1000
+Ethernet10    11     Ethernet10    11       1000
+Ethernet11    12     Ethernet11    12       1000
+Ethernet12    13     Ethernet12    13       1000
+Ethernet13    14     Ethernet13    14       1000
+Ethernet14    15     Ethernet14    15       1000
+Ethernet15    16     Ethernet15    16       1000
+Ethernet16    17     Ethernet16    17       1000
+Ethernet17    18     Ethernet17    18       1000
+Ethernet18    19     Ethernet18    19       1000
+Ethernet19    20     Ethernet19    20       1000
+Ethernet20    21     Ethernet20    21       1000
+Ethernet21    22     Ethernet21    22       1000
+Ethernet22    23     Ethernet22    23       1000
+Ethernet23    24     Ethernet23    24       1000
+Ethernet24    25     Ethernet24    25       1000
+Ethernet25    26     Ethernet25    26       1000
+Ethernet26    27     Ethernet26    27       1000
+Ethernet27    28     Ethernet27    28       1000
+Ethernet28    29     Ethernet28    29       1000
+Ethernet29    30     Ethernet29    30       1000
+Ethernet30    31     Ethernet30    31       1000
+Ethernet31    32     Ethernet31    32       1000
+Ethernet32    33     Ethernet32    33       1000
+Ethernet33    34     Ethernet33    34       1000
+Ethernet34    35     Ethernet34    35       1000
+Ethernet35    36     Ethernet35    36       1000
+Ethernet36    37     Ethernet36    37       1000
+Ethernet37    38     Ethernet37    38       1000
+Ethernet38    39     Ethernet38    39       1000
+Ethernet39    40     Ethernet39    40       1000
+Ethernet40    41     Ethernet40    41       1000
+Ethernet41    42     Ethernet41    42       1000
+Ethernet42    43     Ethernet42    43       1000
+Ethernet43    44     Ethernet43    44       1000
+Ethernet44    45     Ethernet44    45       1000
+Ethernet45    46     Ethernet45    46       1000
+Ethernet46    47     Ethernet46    47       1000
+Ethernet47    48     Ethernet47    48       1000
+Ethernet48    49     Ethernet48    49       10000
+Ethernet49    50     Ethernet49    50       10000
+Ethernet50    51     Ethernet50    51       10000
+Ethernet51    52     Ethernet51    52       10000

device/nokia/armhf-nokia_ixs7215_52x-r0/Nokia-7215/profile.ini

@@ -0,0 +1,2 @@
+switchMacAddress=XX:XX:XX:XX:XX:XX
+ledMode=ac3x97bits

device/nokia/armhf-nokia_ixs7215_52x-r0/Nokia-7215/profile.ini.inband

@@ -0,0 +1,3 @@
+switchMacAddress=XX:XX:XX:XX:XX:XX
+inbandMgmtPortNum=48
+ledMode=ac3x97bits

device/nokia/armhf-nokia_ixs7215_52x-r0/Nokia-7215/profile.ini.noinband

@@ -0,0 +1,2 @@
+switchMacAddress=XX:XX:XX:XX:XX:XX
+ledMode=ac3x97bits

device/nokia/armhf-nokia_ixs7215_52x-r0/Nokia-7215/sai.profile

@@ -0,0 +1,3 @@
+mode=1
+hwId=et6448m
+SAI_INIT_CONFIG_FILE=/usr/share/sonic/hwsku/profile.ini

device/nokia/armhf-nokia_ixs7215_52x-r0/default_sku

@@ -0,0 +1 @@
+Nokia-7215 l2

device/nokia/armhf-nokia_ixs7215_52x-r0/platform_components.json

@@ -0,0 +1,10 @@
+{
+    "chassis": {
+        "7215 IXS-T1": {
+            "component": {
+                "U-Boot": { },
+                "System-CPLD": { }
+            }
+        }
+    }
+}

device/nokia/armhf-nokia_ixs7215_52x-r0/plugins/eeprom.py

@@ -0,0 +1,14 @@
+try:
+    import os
+    from sonic_eeprom import eeprom_tlvinfo
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+
+class board(eeprom_tlvinfo.TlvInfoDecoder):
+
+    def __init__(self, name, path, cpld_root, ro):
+        self.eeprom_path = "/sys/class/i2c-adapter/i2c-0/0-0053/eeprom"
+        if not os.path.exists(self.eeprom_path):
+                os.system("echo 24c02 0x53 > /sys/class/i2c-adapter/i2c-0/new_device")
+        super(board, self).__init__(self.eeprom_path, 0, '', True)

device/nokia/armhf-nokia_ixs7215_52x-r0/plugins/led_control.py

@@ -0,0 +1,125 @@
+#
+# led_control.py
+#
+# Platform-specific LED control functionality for SONiC
+#
+
+try:
+    from sonic_led.led_control_base import LedControlBase
+    import os
+    import time
+    import syslog
+    import sonic_platform.platform
+    import sonic_platform.chassis
+except ImportError as e:
+    raise ImportError(str(e) + " - required module not found")
+
+smbus_present = 1
+
+try:
+    import smbus
+except ImportError as e:
+    smbus_present = 0
+
+
+def DBG_PRINT(str):
+    syslog.openlog("nokia-led")
+    syslog.syslog(syslog.LOG_INFO, str)
+    syslog.closelog()
+
+
+class LedControl(LedControlBase):
+    """Platform specific LED control class"""
+
+    # Constructor
+    def __init__(self):
+        self.chassis = sonic_platform.platform.Platform().get_chassis()
+        self._initDefaultConfig()
+
+    def _initDefaultConfig(self):
+        # For the D1 box the port leds are controlled by Trident3 LED program
+        # The fan tray leds will be managed with the new thermalctl daemon / chassis class based API
+        # leaving only the system leds to be done old style
+        DBG_PRINT("starting system leds")
+        self._initSystemLed()
+        DBG_PRINT(" led done")
+
+    def _set_i2c_register(self, reg_file, value):
+        # On successful write, the value read will be written on
+        # reg_name and on failure returns 'ERR'
+        rv = 'ERR'
+
+        if (not os.path.isfile(reg_file)):
+            return rv
+        try:
+            with open(reg_file, 'w') as fd:
+                rv = fd.write(str(value))
+        except Exception as e:
+            rv = 'ERR'
+
+        return rv
+
+    def _initSystemLed(self):
+        # Front Panel System LEDs setting
+        oldfan = 0xf
+        oldpsu = 0xf
+
+        # Write sys led
+        if smbus_present == 0:
+            DBG_PRINT(" PMON LED SET ERROR ->  smbus present = 0  ")
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICEREG = 0x7
+            bus.write_byte_data(DEVICE_ADDRESS, DEVICEREG, 0x02)
+            DBG_PRINT(" System LED set O.K. ")
+
+        while True:
+            # Front Panel FAN Panel LED setting in register 0x08
+            if (self.chassis.get_fan(0).get_status() == self.chassis.get_fan(1).get_status() == True):
+                if oldfan != 0x1:
+                    if (os.path.isfile("/sys/class/gpio/fanLedAmber/value")):
+                        self._set_i2c_register("/sys/class/gpio/fanLedAmber/value", 0)
+                        self._set_i2c_register("/sys/class/gpio/fanLedGreen/value", 1)
+                        oldfan = 0x1
+            else:
+                if oldfan != 0x0:
+                    if (os.path.isfile("/sys/class/gpio/fanLedGreen/value")):
+                        self._set_i2c_register("/sys/class/gpio/fanLedGreen/value", 0)
+                        self._set_i2c_register("/sys/class/gpio/fanLedAmber/value", 1)
+                        oldfan = 0x0
+
+            # Front Panel PSU Panel LED setting in register 0x09
+            if (self.chassis.get_psu(0).get_status() == self.chassis.get_psu(1).get_status() == True):
+                if oldpsu != 0x1:
+                    if (os.path.isfile("/sys/class/gpio/psuLedAmber/value")):
+                        self._set_i2c_register("/sys/class/gpio/psuLedAmber/value", 0)
+                        self._set_i2c_register("/sys/class/gpio/psuLedGreen/value", 1)
+                        oldpsu = 0x1
+            else:
+                if oldpsu != 0x0:
+                    if (os.path.isfile("/sys/class/gpio/psuLedGreen/value")):
+                        self._set_i2c_register("/sys/class/gpio/psuLedGreen/value", 0)
+                        self._set_i2c_register("/sys/class/gpio/psuLedAmber/value", 1)
+                        oldpsu = 0x0
+            time.sleep(6)
+
+    # Helper method to map SONiC port name to index
+    def _port_name_to_index(self, port_name):
+        # Strip "Ethernet" off port name
+        if not port_name.startswith(self.SONIC_PORT_NAME_PREFIX):
+            return -1
+
+        port_idx = int(port_name[len(self.SONIC_PORT_NAME_PREFIX):])
+        return port_idx
+
+    def _port_state_to_mode(self, port_idx, state):
+        DBG_PRINT("_port_state_to_mode")
+
+    def _port_led_mode_update(self, port_idx, ledMode):
+        DBG_PRINT("_port_led_mode_update")
+
+    # called when port states change- implementation of port_link_state_change() method if needed
+    def port_link_state_change(self, portname, state):
+        # DBG_PRINT("port_link_state_change ")
+        return

device/nokia/armhf-nokia_ixs7215_52x-r0/plugins/psuutil.py

@@ -0,0 +1,32 @@
+try:
+    import sonic_platform.platform
+    import sonic_platform.chassis
+    from sonic_psu.psu_base import PsuBase
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+
+class PsuUtil(PsuBase):
+    """Platform-specific PSUutil class"""
+
+    def __init__(self):
+        PsuBase.__init__(self)
+        self.chassis = sonic_platform.platform.Platform().get_chassis()
+
+    def get_num_psus(self):
+        MAX_PSUS = 2
+        return MAX_PSUS
+
+    def get_psu_status(self, index):
+        # print " psuUtil redirect to PMON 2.0  "
+        if self.chassis is not None:
+            return self.chassis.get_psu(index-1).get_status()
+        else:
+            return False
+
+    def get_psu_presence(self, index):
+        # print " psuUtil redirect to PMON 2.0  "
+        if self.chassis is not None:
+            return self.chassis.get_psu(index-1).get_presence()
+        else:
+            return False

device/nokia/armhf-nokia_ixs7215_52x-r0/plugins/sfputil.py

@@ -0,0 +1,65 @@
+try:
+    import sonic_platform.platform
+    import sonic_platform.chassis
+    from sonic_sfp.sfputilbase import SfpUtilBase
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+
+class SfpUtil(SfpUtilBase):
+    """Platform specific sfputil class"""
+
+    _port_start = 49
+    _port_end = 52
+    ports_in_block = 4
+
+    _port_to_eeprom_mapping = {}
+    _changed_ports = [0, 0, 0, 0]
+
+    @property
+    def port_start(self):
+        return self._port_start
+
+    @property
+    def port_end(self):
+        return self._port_end
+
+    @property
+    def qsfp_ports(self):
+        return range(0, 0)
+
+    @property
+    def port_to_eeprom_mapping(self):
+        return self._port_to_eeprom_mapping
+
+    def __init__(self):
+        # print " SfpUtil(SfpUtilBase) re-directed to chassis PMON 2.0  "
+        SfpUtilBase.__init__(self)
+        self.chassis = sonic_platform.platform.Platform().get_chassis()
+
+    def reset(self, port_num):
+        # print " SfpUtil(SfpUtilBase) re-directed to chassis PMON 2.0 "
+        if self.chassis is not None:
+            return self.chassis.get_sfp(port_num).reset()
+        else:
+            return False
+
+    def set_low_power_mode(self, port_nuM, lpmode):
+        # print " SfpUtil(SfpUtilBase) targeted for deprecation "
+        return False
+
+    def get_low_power_mode(self, port_num):
+        # print " SfpUtil(SfpUtilBase) targeted for deprecation "
+        return False
+
+    def get_presence(self, port_num):
+        # print " SfpUtil(SfpUtilBase) re-directed to chassis PMON 2.0 "
+        if self.chassis is not None:
+            return self.chassis.get_sfp(port_num).get_presence()
+        else:
+            return False
+
+    def get_transceiver_change_event(self, timeout):
+        # print " SfpUtil(SfpUtilBase) targeted for deprecation "
+
+        raise NotImplementedError

device/nokia/armhf-nokia_ixs7215_52x-r0/sensors.conf

@@ -0,0 +1,19 @@
+chip "adt7473-*"
+    label fan1 "rear fan 1"
+    label fan2 "rear fan 2"
+    ignore fan3
+    ignore fan4
+    ignore in1
+
+chip "lm75a-i2c-*-4a"
+    label temp1 "MAC temp sensor"
+    set temp1_max 65
+    set temp1_crit 75
+
+chip "lm75a-i2c-*-4b"
+    label temp1 "Board temp sensor"
+    set temp2_max 65
+    set temp2_crit 75
+
+chip "armada_thermal-*"
+    ignore temp1

device/nokia/armhf-nokia_ixs7215_52x-r0/thermal_policy.json

@@ -0,0 +1,65 @@
+{   
+    "thermal_control_algorithm": {
+        "run_at_boot_up": "false",
+        "fan_speed_when_suspend": "50"
+    },
+    "info_types": [
+        {
+            "type": "fan_info"
+        },
+        {
+            "type": "thermal_info"
+        },
+        {
+            "type": "chassis_info"
+        }
+    ],
+    "policies": [
+        {
+            "name": "any fan absence",
+            "conditions": [
+                {
+                    "type": "fan.any.absence"
+                }
+            ],
+            "actions": [
+                {
+                    "type": "thermal_control.control",
+                    "status": "false"
+                },
+                {
+                    "type": "fan.all.set_speed",
+                    "speed": "100"
+                }
+            ]
+        },
+        {
+            "name": "all fan presence",
+            "conditions": [
+                {
+                    "type": "fan.all.presence"
+                }
+            ],
+            "actions": [
+                {
+                    "type": "thermal.temp_check_and_set_all_fan_speed",
+                    "default_speed": "50",
+                    "hightemp_speed": "100"
+                }
+            ]
+        },
+	{
+            "name": "temp over high critical threshold",
+            "conditions": [
+                {
+                    "type": "thermal.over.high_critical_threshold"
+                }
+            ],
+            "actions": [
+                {
+                    "type": "switch.shutdown"
+                }
+            ]
+        }
+    ]
+}

platform/marvell-armhf/one-image.mk

@@ -5,7 +5,8 @@ $(SONIC_ONE_IMAGE)_MACHINE = marvell-armhf
 $(SONIC_ONE_IMAGE)_IMAGE_TYPE = onie
 $(SONIC_ONE_IMAGE)_INSTALLS += $(SYSTEMD_SONIC_GENERATOR)
 $(SONIC_ONE_IMAGE)_INSTALLS += $(LINUX_KERNEL_DTB)
-$(SONIC_ONE_IMAGE)_LAZY_INSTALLS += $(ET6448M_PLATFORM)
+$(SONIC_ONE_IMAGE)_LAZY_INSTALLS += $(ET6448M_PLATFORM) \
+				$(NOKIA_7215_PLATFORM)
 ifeq ($(INSTALL_DEBUG_TOOLS),y)
 $(SONIC_ONE_IMAGE)_DOCKERS += $(SONIC_INSTALL_DOCKER_DBG_IMAGES)
 $(SONIC_ONE_IMAGE)_DOCKERS += $(filter-out $(patsubst %-$(DBG_IMAGE_MARK).gz,%.gz, $(SONIC_INSTALL_DOCKER_DBG_IMAGES)), $(SONIC_INSTALL_DOCKER_IMAGES))

platform/marvell-armhf/platform-nokia.mk

@@ -0,0 +1,11 @@
+# Nokia Platform
+
+NOKIA_7215_PLATFORM_VERSION = 1.0
+export NOKIA_7215_PLATFORM_VERSION
+
+NOKIA_7215_PLATFORM = sonic-platform-nokia-7215_$(NOKIA_7215_PLATFORM_VERSION)_$(CONFIGURED_ARCH).deb
+$(NOKIA_7215_PLATFORM)_SRC_PATH = $(PLATFORM_PATH)/sonic-platform-nokia
+$(NOKIA_7215_PLATFORM)_PLATFORM = armhf-nokia_ixs7215_52x-r0
+SONIC_DPKG_DEBS += $(NOKIA_7215_PLATFORM)
+
+SONIC_STRETCH_DEBS += $(NOKIA_7215_PLATFORM)

platform/marvell-armhf/platform.conf

@@ -100,7 +100,11 @@ prepare_boot_menu() {
     fw_setenv ${FW_ARG} sonic_version_2 $sonic_version_2 > /dev/null
     BOOT1='echo " > Boot1: $sonic_version_1 - run sonic_image_1";echo;'
     BOOT2='echo " > Boot2: $sonic_version_2 - run sonic_image_2";echo;'
+    if [ "$PLATFORM" = "armhf-nokia_ixs7215_52x-r0" ]; then
+        BOOT3='echo " > Boot3: ONIE - run onie_bootcmd";echo;'
+    else
         BOOT3='echo " > Boot3: ONIE - run onie_nand_boot";echo;'
+    fi
     BORDER='echo "---------------------------------------------------";echo;'
     fw_setenv ${FW_ARG} print_menu $BORDER $BOOT1 $BOOT2 $BOOT3 $BORDER > /dev/null
 

platform/marvell-armhf/rules.mk

@@ -8,6 +8,7 @@ include $(PLATFORM_PATH)/docker-ptf-mrvl.mk
 include $(PLATFORM_PATH)/one-image.mk
 include $(PLATFORM_PATH)/linux-kernel-armhf.mk
 include $(PLATFORM_PATH)/platform-et6448m.mk
+include $(PLATFORM_PATH)/platform-nokia.mk
 
 INCLUDE_SYSTEM_TELEMETRY = ""
 ENABLE_SYNCD_RPC = ""

platform/marvell-armhf/sonic-platform-nokia/7215/scripts/nokia-7215init.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+
+# Platform init script for Nokia IXS 7215
+
+# Load required kernel-mode drivers
+load_kernel_drivers() {
+    # Remove modules loaded during Linux init
+    # FIX-ME: This will be removed in the future when Linux init no longer loads these
+    rmmod i2c_mux_gpio
+    rmmod i2c_dev
+    rmmod i2c_mv64xxx
+
+    # Carefully control the load order here to ensure consistent i2c bus numbering
+    modprobe i2c_mv64xxx
+    modprobe i2c_dev
+    modprobe i2c_mux_gpio
+    modprobe eeprom
+}
+
+
+nokia_7215_profile()
+{
+    MAC_ADDR=$(sudo decode-syseeprom -m)
+    sed -i "s/switchMacAddress=.*/switchMacAddress=$MAC_ADDR/g" /usr/share/sonic/device/armhf-nokia_ixs7215_52x-r0/Nokia-7215/profile.ini
+    echo "Nokia-7215: Updating switch mac address ${MAC_ADDR}"
+}
+
+# - Main entry
+
+# Install kernel drivers required for i2c bus access
+load_kernel_drivers
+
+# LOGIC to enumerate SFP eeprom devices - send 0x50 to kernel i2c driver - initialize devices
+# the mux may be enumerated at number 4 or 5 so we check for the mux and skip if needed
+
+# Get list of the mux channels
+ismux_bus=$(i2cdetect -l|grep mux|cut -f1)
+
+# Enumerate the SFP eeprom device on each mux channel
+for mux in ${ismux_bus}
+do
+    echo optoe2 0x50 > /sys/class/i2c-adapter/${mux}/new_device
+done
+
+# Enumerate system eeprom
+echo 24c02 0x53 > /sys/class/i2c-adapter/i2c-0/new_device
+sleep 2
+chmod 644 /sys/class/i2c-adapter/i2c-0/0-0053/eeprom
+
+# Enumerate fan eeprom devices
+echo eeprom 0x55 > /sys/class/i2c-adapter/i2c-0/new_device
+echo eeprom 0x56 > /sys/class/i2c-adapter/i2c-0/new_device
+
+# Enable optical SFP Tx
+i2cset -y -m 0x0f 0 0x41 0x5 0x00
+
+# Ensure switch is programmed with chassis base MAC addr
+nokia_7215_profile
+
+echo "Nokia-7215 - completed platform init script"
+exit 0

platform/marvell-armhf/sonic-platform-nokia/7215/service/nokia-7215init.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=Nokia-7215 Platform Service
+Before=pmon.service
+After=sysinit.target
+DefaultDependencies=no
+
+[Service]
+ExecStart=/usr/local/bin/nokia-7215init.sh
+KillSignal=SIGKILL
+SuccessExitStatus=SIGKILL
+#StandardOutput=tty
+
+[Install]
+WantedBy=multi-user.target

platform/marvell-armhf/sonic-platform-nokia/7215/setup.py

@@ -0,0 +1,15 @@
+#!/usr/bin/env python
+
+import os
+from setuptools import setup
+os.listdir
+
+setup(
+   name='sonic_platform',
+   version='1.0',
+   description='Module to initialize Nokia IXS 7215 platforms',
+
+   packages=['sonic_platform','sonic_platform.test'],
+   package_dir={'sonic_platform': '7215/sonic_platform'},
+)
+

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/__init__.py

@@ -0,0 +1,2 @@
+
+

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/chassis.py

@@ -0,0 +1,377 @@
+#############################################################################
+#
+# Module contains an implementation of SONiC Platform Base API and
+# provides the platform information
+#
+#############################################################################
+
+try:
+    import os
+    import sys
+    import glob
+    from sonic_platform_base.chassis_base import ChassisBase
+    from sonic_platform.sfp import Sfp
+    from sonic_platform.eeprom import Eeprom
+    from sonic_platform.fan import Fan
+    from .fan_drawer import VirtualDrawer
+    from sonic_platform.psu import Psu
+    from sonic_platform.thermal import Thermal
+    from sonic_platform.component import Component
+    from sonic_py_common import logger
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+smbus_present = 1
+try:
+    import smbus
+except ImportError as e:
+    smbus_present = 0
+
+MAX_SELECT_DELAY = 3600
+COPPER_PORT_START = 1
+COPPER_PORT_END = 48
+SFP_PORT_START = 49
+SFP_PORT_END = 52
+PORT_END = 52
+
+# Device counts
+MAX_7215_FAN_DRAWER = 1
+MAX_7215_FAN = 2
+MAX_7215_PSU = 2
+MAX_7215_THERMAL = 6
+
+# Temp - disable these to help with early debug
+MAX_7215_COMPONENT = 2
+
+SYSLOG_IDENTIFIER = "chassis"
+sonic_logger = logger.Logger(SYSLOG_IDENTIFIER)
+
+
+class Chassis(ChassisBase):
+    """
+    Nokia platform-specific Chassis class
+        Derived from Dell S6000 platform.
+        customized for the 7215 platform.
+    """
+
+    def __init__(self):
+        ChassisBase.__init__(self)
+        self.system_led_supported_color = ['off', 'amber', 'green', 'amber_blink', 'green_blink']
+        # Port numbers for SFP List Initialization
+        self.COPPER_PORT_START = COPPER_PORT_START
+        self.COPPER_PORT_END = COPPER_PORT_END
+        self.SFP_PORT_START = SFP_PORT_START
+        self.SFP_PORT_END = SFP_PORT_END
+        self.PORT_END = PORT_END
+
+        # for non-sfp ports create dummy objects for copper / non-sfp ports
+        for index in range(self.COPPER_PORT_START, self.COPPER_PORT_END+1):
+            sfp_node = Sfp(index, 'COPPER', 'N/A', 'N/A')
+            self._sfp_list.append(sfp_node)
+
+        # Verify optoe2 driver SFP eeprom devices were enumerated and exist
+        # then create the sfp nodes
+        eeprom_path = "/sys/class/i2c-adapter/i2c-{0}/{0}-0050/eeprom"
+        mux_dev = sorted(glob.glob("/sys/class/i2c-adapter/i2c-0/i2c-[0-9]"))
+        y = 0
+        for index in range(self.SFP_PORT_START, self.SFP_PORT_END+1):
+            mux_dev_num = mux_dev[y]
+            port_i2c_map = mux_dev_num[-1]
+            y = y + 1
+            port_eeprom_path = eeprom_path.format(port_i2c_map)
+            if not os.path.exists(port_eeprom_path):
+                sonic_logger.log_info("path %s didnt exist" % port_eeprom_path)
+            sfp_node = Sfp(index, 'SFP', port_eeprom_path, port_i2c_map)
+            self._sfp_list.append(sfp_node)
+        self.sfp_event_initialized = False
+
+        # Instantiate system eeprom object
+        self._eeprom = Eeprom()
+
+        # Construct lists fans, power supplies, thermals & components
+        drawer_num = MAX_7215_FAN_DRAWER
+        fan_num_per_drawer = MAX_7215_FAN
+        drawer_ctor = VirtualDrawer
+        fan_index = 0
+        for drawer_index in range(drawer_num):
+            drawer = drawer_ctor(drawer_index)
+            self._fan_drawer_list.append(drawer)
+            for index in range(fan_num_per_drawer):
+                fan = Fan(fan_index, drawer)
+                fan_index += 1
+                drawer._fan_list.append(fan)
+                self._fan_list.append(fan)
+
+        for i in range(MAX_7215_PSU):
+            psu = Psu(i)
+            self._psu_list.append(psu)
+
+        for i in range(MAX_7215_THERMAL):
+            thermal = Thermal(i)
+            self._thermal_list.append(thermal)
+
+        for i in range(MAX_7215_COMPONENT):
+            component = Component(i)
+            self._component_list.append(component)
+
+    def get_sfp(self, index):
+        """
+        Retrieves sfp represented by (1-based) index <index>
+        Args:
+            index: An integer, the index (1-based) of the sfp to retrieve.
+            The index should be the sequence of physical SFP ports in a
+            chassis starting from 1.
+
+        Returns:
+            An object dervied from SfpBase representing the specified sfp
+        """
+        sfp = None
+
+        try:
+            # The index will start from 1
+            sfp = self._sfp_list[index-1]
+        except IndexError:
+            sys.stderr.write("SFP index {} out of range (1-{})\n".format(
+                             index, len(self._sfp_list)))
+        return sfp
+
+    def get_name(self):
+        """
+        Retrieves the name of the chassis
+        Returns:
+            string: The name of the chassis
+        """
+        return self._eeprom.modelstr()
+
+    def get_presence(self):
+        """
+        Retrieves the presence of the chassis
+        Returns:
+            bool: True if chassis is present, False if not
+        """
+        return True
+
+    def get_model(self):
+        """
+        Retrieves the model number (or part number) of the chassis
+        Returns:
+            string: Model/part number of chassis
+        """
+        return self._eeprom.part_number_str()
+
+    def get_serial(self):
+        """
+        Retrieves the serial number of the chassis (Service tag)
+        Returns:
+            string: Serial number of chassis
+        """
+        return self._eeprom.serial_str()
+
+    def get_status(self):
+        """
+        Retrieves the operational status of the chassis
+        Returns:
+            bool: A boolean value, True if chassis is operating properly
+            False if not
+        """
+        return True
+
+    def get_base_mac(self):
+        """
+        Retrieves the base MAC address for the chassis
+
+        Returns:
+            A string containing the MAC address in the format
+            'XX:XX:XX:XX:XX:XX'
+        """
+        return self._eeprom.base_mac_addr()
+
+    def get_serial_number(self):
+        """
+        Retrieves the hardware serial number for the chassis
+
+        Returns:
+            A string containing the hardware serial number for this
+            chassis.
+        """
+        return self._eeprom.serial_number_str()
+
+    def get_system_eeprom_info(self):
+        """
+        Retrieves the full content of system EEPROM information for the
+        chassis
+
+        Returns:
+            A dictionary where keys are the type code defined in
+            OCP ONIE TlvInfo EEPROM format and values are their
+            corresponding values.
+        """
+        return self._eeprom.system_eeprom_info()
+
+    def get_reboot_cause(self):
+        """
+        Retrieves the cause of the previous reboot
+        Returns:
+            A tuple (string, string) where the first element is a string
+            containing the cause of the previous reboot. This string must be
+            one of the predefined strings in this class. If the first string
+            is "REBOOT_CAUSE_HARDWARE_OTHER", the second string can be used
+            to pass a description of the reboot cause.
+        """
+        # The ixs7215 CPLD does not have a hardware reboot cause register so
+        # the hardware portion of reboot cause can't be implemented
+
+        return (ChassisBase.REBOOT_CAUSE_NON_HARDWARE, None)
+
+    def get_change_event(self, timeout=0):
+        """
+        Returns a nested dictionary containing all devices which have
+        experienced a change at chassis level
+
+        Args:
+            timeout: Timeout in milliseconds (optional). If timeout == 0,
+                this method will block until a change is detected.
+
+        Returns:
+            (bool, dict):
+                - True if call successful, False if not;
+                - A nested dictionary where key is a device type,
+                  value is a dictionary with key:value pairs in the format of
+                  {'device_id':'device_event'},
+                  where device_id is the device ID for this device and
+                        device_event,
+                             status='1' represents device inserted,
+                             status='0' represents device removed.
+                  Ex. {'fan':{'0':'0', '2':'1'}, 'sfp':{'11':'0'}}
+                      indicates that fan 0 has been removed, fan 2
+                      has been inserted and sfp 11 has been removed.
+        """
+        # Initialize SFP event first
+        if not self.sfp_event_initialized:
+            from sonic_platform.sfp_event import sfp_event
+            self.sfp_event = sfp_event()
+            self.sfp_event.initialize()
+            self.MAX_SELECT_EVENT_RETURNED = self.PORT_END
+            self.sfp_event_initialized = True
+
+        wait_for_ever = (timeout == 0)
+        port_dict = {}
+        if wait_for_ever:
+            # xrcvd will call this monitor loop in the "SYSTEM_READY" state
+            timeout = MAX_SELECT_DELAY
+            while True:
+                status = self.sfp_event.check_sfp_status(port_dict, timeout)
+                if not port_dict == {}:
+                    break
+        else:
+            # At boot up and in "INIT" state call from xrcvd will have timeout
+            # value return true without change after timeout and will
+            # transition to "SYSTEM_READY"
+            status = self.sfp_event.check_sfp_status(port_dict, timeout)
+
+        if status:
+            return True, {'sfp': port_dict}
+        else:
+            return True, {'sfp': {}}
+
+    def get_thermal_manager(self):
+        from .thermal_manager import ThermalManager
+        return ThermalManager
+
+    def set_status_led(self, color):
+        """
+        Sets the state of the system LED
+
+        Args:
+            color: A string representing the color with which to set the
+                   system LED
+
+        Returns:
+            bool: True if system LED state is set successfully, False if not
+        """
+        if color not in self.system_led_supported_color:
+            return False
+
+        if (color == 'off'):
+            value = 0x00
+        elif (color == 'amber'):
+            value = 0x01
+        elif (color == 'green'):
+            value = 0x02
+        elif (color == 'amber_blink'):
+            value = 0x03
+        elif (color == 'green_blink'):
+            value = 0x04
+        else:
+            return False
+
+        # Write sys led
+        if smbus_present == 0:
+            sonic_logger.log_info("PMON LED SET ERROR-> smbus present = 0")
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICEREG = 0x7
+            bus.write_byte_data(DEVICE_ADDRESS, DEVICEREG, value)
+            sonic_logger.log_info("  System LED set O.K.  ")
+            return True
+
+        return False
+
+    def get_status_led(self):
+        """
+        Gets the state of the system LED
+
+        Returns:
+            A string, one of the valid LED color strings which could be vendor
+            specified.
+        """
+        # Read sys led
+        if smbus_present == 0:
+            sonic_logger.log_info("PMON LED GET ERROR-> smbus present = 0")
+            return False
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0x7
+            value = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+            if value == 0x00:
+                color = 'off'
+            elif value == 0x01:
+                color = 'amber'
+            elif value == 0x02:
+                color = 'green'
+            elif value == 0x03:
+                color = 'amber_blink'
+            elif value == 0x04:
+                color = 'green_blink'
+            else:
+                return False
+
+            return color
+
+    def get_watchdog(self):
+        """
+        Retrieves hardware watchdog device on this chassis
+
+        Returns:
+            An object derived from WatchdogBase representing the hardware
+            watchdog device
+
+        Note:
+            We overload this method to ensure that watchdog is only initialized
+            when it is referenced. Currently, only one daemon can open the
+            watchdog. To initialize watchdog in the constructor causes multiple
+            daemon try opening watchdog when loading and constructing a chassis
+            object and fail. By doing so we can eliminate that risk.
+        """
+        try:
+            if self._watchdog is None:
+                from sonic_platform.watchdog import WatchdogImplBase
+                watchdog_device_path = "/dev/watchdog0"
+                self._watchdog = WatchdogImplBase(watchdog_device_path)
+        except Exception as e:
+            sonic_logger.log_info("Fail to load watchdog {}".format(repr(e)))
+
+        return self._watchdog

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/component.py

@@ -0,0 +1,119 @@
+########################################################################
+# NOKIA IXS7215
+#
+# Module contains an implementation of SONiC Platform Base API and
+# provides the Components' (e.g., BIOS, CPLD, FPGA, etc.) available in
+# the platform
+#
+########################################################################
+
+try:
+    import os
+    import sys
+    import subprocess
+    import ntpath
+    from sonic_platform_base.component_base import ComponentBase
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+try:
+    import smbus
+except ImportError as e:
+    smbus_present = 0
+
+if sys.version_info[0] < 3:
+    import commands as cmd
+else:
+    import subprocess as cmd
+
+
+class Component(ComponentBase):
+    """Nokia platform-specific Component class"""
+
+    CHASSIS_COMPONENTS = [
+        ["System-CPLD", "Used for managing SFPs, LEDs, PSUs and FANs "],
+        ["U-Boot", "Performs initialization during booting"],
+    ]
+
+    def __init__(self, component_index):
+        self.index = component_index
+        self.name = self.CHASSIS_COMPONENTS[self.index][0]
+        self.description = self.CHASSIS_COMPONENTS[self.index][1]
+
+    def _get_command_result(self, cmdline):
+        try:
+            proc = subprocess.Popen(cmdline.split(), stdout=subprocess.PIPE,
+                                    stderr=subprocess.STDOUT)
+            stdout = proc.communicate()[0]
+            proc.wait()
+            result = stdout.rstrip('\n')
+        except OSError:
+            result = None
+
+        return result
+
+    def _get_cpld_version(self, cpld_number):
+
+        if smbus_present == 0:
+            cmdstatus, cpld_version = cmd.getstatusoutput('i2cget -y 0 0x41 0x2')
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0x2
+            cpld_version = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        return str(int(cpld_version, 16))
+
+    def get_name(self):
+        """
+        Retrieves the name of the component
+
+        Returns:
+            A string containing the name of the component
+        """
+        return self.name
+
+    def get_description(self):
+        """
+        Retrieves the description of the component
+
+        Returns:
+            A string containing the description of the component
+        """
+        return self.description
+
+    def get_firmware_version(self):
+        """
+        Retrieves the firmware version of the component
+
+        Returns:
+            A string containing the firmware version of the component
+        """
+        if self.index == 0:
+            return self._get_cpld_version(self.index)
+
+        if self.index == 1:
+            cmdstatus, uboot_version = cmd.getstatusoutput('grep --null-data U-Boot /dev/mtd0ro|head -1 | cut -c 1-30')
+            return uboot_version
+
+    def install_firmware(self, image_path):
+        """
+        Installs firmware to the component
+
+        Args:
+            image_path: A string, path to firmware image
+
+        Returns:
+            A boolean, True if install was successful, False if not
+        """
+        image_name = ntpath.basename(image_path)
+        print(" ixs7215 - install cpld {}".format(image_name))
+
+        # check whether the image file exists
+        if not os.path.isfile(image_path):
+            print("ERROR: the cpld image {} doesn't exist ".format(image_path))
+            return False
+
+        success_flag = False
+
+        return success_flag

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/eeprom.py

@@ -0,0 +1,235 @@
+########################################################################
+# Nokia IXR7220_D1
+#
+# Module contains platform specific implementation of SONiC Platform
+# Base API and provides the EEPROMs' information.
+#
+# The different EEPROMs available are as follows:
+# - System EEPROM : Contains Serial number, Service tag, Base MA
+#                   address, etc. in ONIE TlvInfo EEPROM format.
+# - PSU EEPROM : Contains Serial number, Part number, Service Tag,
+#                PSU type, Revision.
+# - Fan EEPROM : Contains Serial number, Part number, Service Tag,
+#                Fan type, Number of Fans in Fantray, Revision.
+########################################################################
+
+
+try:
+    from sonic_platform_base.sonic_eeprom.eeprom_base import EepromDecoder
+    from sonic_platform_base.sonic_eeprom.eeprom_tlvinfo import TlvInfoDecoder
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+
+# PSU eeprom fields in format required by EepromDecoder
+psu_eeprom_format = [
+    ('PPID', 's', 20), ('DPN Rev', 's', 3), ('Service Tag', 's', 7),
+    ('Part Number', 's', 10), ('Part Num Revision', 's', 3),
+    ('Mfg Test', 's', 2), ('Redundant copy', 's', 83), ('PSU Type', 's', 1),
+    ('Fab Rev', 's', 2)
+    ]
+
+# Fan eeprom fields in format required by EepromDecoder
+fan_eeprom_format = [
+    ('Model', 's', 12), ('Serial Number', 's', 13)
+    ]
+
+
+class Eeprom(TlvInfoDecoder):
+    """Nokia platform-specific EEPROM class"""
+
+    I2C_DIR = "/sys/class/i2c-adapter/"
+
+    def __init__(self, is_psu=False, psu_index=0, is_fan=False, fan_index=0):
+        self.is_psu_eeprom = is_psu
+        self.is_fan_eeprom = is_fan
+        self.is_sys_eeprom = not (is_psu | is_fan)
+
+        if self.is_sys_eeprom:
+            self.start_offset = 0
+            self.eeprom_path = self.I2C_DIR + "i2c-0/0-0053/eeprom"
+            # System EEPROM is in ONIE TlvInfo EEPROM format
+            super(Eeprom, self).__init__(self.eeprom_path,
+                                         self.start_offset, '', True)
+            self._load_system_eeprom()
+        else:
+            if self.is_psu_eeprom:
+                self.index = psu_index
+                self.start_offset = 6
+                self.eeprom_path = self.I2C_DIR \
+                    + "i2c-1/1-005{}/eeprom".format(2 - self.index)
+                self.format = psu_eeprom_format
+            else:
+                self.index = fan_index
+                self.start_offset = 13
+                self.eeprom_path = self.I2C_DIR \
+                    + "i2c-4{0}/4{0}-0050/eeprom".format(self.index - 1)
+                self.format = fan_eeprom_format
+            EepromDecoder.__init__(self, self.eeprom_path, self.format,
+                                   self.start_offset, '', True)
+            self._load_device_eeprom()
+
+    def _load_system_eeprom(self):
+        """
+        Reads the system EEPROM and retrieves the values corresponding
+        to the codes defined as per ONIE TlvInfo EEPROM format and fills
+        them in a dictionary.
+        """
+        try:
+            # Read System EEPROM as per ONIE TlvInfo EEPROM format.
+            self.eeprom_data = self.read_eeprom()
+        except Exception as e:
+            self.base_mac = 'NA'
+            self.serial_number = 'NA'
+            self.part_number = 'NA'
+            self.model_str = 'NA'
+            self.serial = 'NA'
+            self.eeprom_tlv_dict = dict()
+        else:
+            eeprom = self.eeprom_data
+            self.eeprom_tlv_dict = dict()
+
+            if not self.is_valid_tlvinfo_header(eeprom):
+                self.base_mac = 'NA'
+                self.serial_number = 'NA'
+                self.part_number = 'NA'
+                self.model_str = 'NA'
+                self.serial = 'NA'
+                return
+
+            total_length = (ord(eeprom[9]) << 8) | ord(eeprom[10])
+            tlv_index = self._TLV_INFO_HDR_LEN
+            tlv_end = self._TLV_INFO_HDR_LEN + total_length
+
+            while (tlv_index + 2) < len(eeprom) and tlv_index < tlv_end:
+                if not self.is_valid_tlv(eeprom[tlv_index:]):
+                    break
+
+                tlv = eeprom[tlv_index:tlv_index + 2
+                             + ord(eeprom[tlv_index + 1])]
+                code = "0x%02X" % (ord(tlv[0]))
+
+                if ord(tlv[0]) == self._TLV_CODE_VENDOR_EXT:
+                    value = str((ord(tlv[2]) << 24) | (ord(tlv[3]) << 16) |
+                                (ord(tlv[4]) << 8) | ord(tlv[5]))
+                    value += str(tlv[6:6 + ord(tlv[1])])
+                else:
+                    name, value = self.decoder(None, tlv)
+
+                self.eeprom_tlv_dict[code] = value
+                if ord(eeprom[tlv_index]) == self._TLV_CODE_CRC_32:
+                    break
+
+                tlv_index += ord(eeprom[tlv_index+1]) + 2
+
+            self.base_mac = self.eeprom_tlv_dict.get(
+                                "0x%X" % (self._TLV_CODE_MAC_BASE), 'NA')
+            self.serial_number = self.eeprom_tlv_dict.get(
+                                "0x%X" % (self._TLV_CODE_SERIAL_NUMBER), 'NA')
+            self.part_number = self.eeprom_tlv_dict.get(
+                                "0x%X" % (self._TLV_CODE_PART_NUMBER), 'NA')
+            self.model_str = self.eeprom_tlv_dict.get(
+                                "0x%X" % (self._TLV_CODE_PRODUCT_NAME), 'NA')
+            self.serial = self.eeprom_tlv_dict.get(
+                                "0x%X" % (self._TLV_CODE_SERVICE_TAG), 'NA')
+
+    def _load_device_eeprom(self):
+        """
+        Reads the Fan/PSU EEPROM and retrieves the serial number and
+        model number of the device.
+        """
+        try:
+            # Read Fan/PSU EEPROM as per the specified format.
+            self.eeprom_data = EepromDecoder.read_eeprom(self)
+        except Exception as e:
+            self.serial_number = 'NA'
+            self.part_number = 'NA'
+            self.model_str = 'NA'
+            self.serial = 'NA'
+        else:
+            (valid, data) = self._get_eeprom_field("Model")
+            if valid:
+                self.model_str = data
+            else:
+                self.model_str = 'NA'
+
+            (valid, data) = self._get_eeprom_field("Serial Number")
+            if valid:
+                self.serial_number = data
+            else:
+                self.serial_number = 'NA'
+
+            if self.is_psu_eeprom:
+                (valid, data) = self._get_eeprom_field("PSU Type")
+                if valid:
+                    self.psu_type = data
+                else:
+                    self.psu_type = 'NA'
+            else:
+                (valid, data) = self._get_eeprom_field("Fan Type")
+                if valid:
+                    self.fan_type = data
+                else:
+                    self.fan_type = 'NA'
+
+    def _get_eeprom_field(self, field_name):
+        """
+        For a field name specified in the EEPROM format, returns the
+        presence of the field and the value for the same.
+        """
+        field_start = 0
+        for field in self.format:
+            field_end = field_start + field[2]
+            if field[0] == field_name:
+                return (True, self.eeprom_data[field_start:field_end])
+            field_start = field_end
+
+        return (False, None)
+
+    def serial_number_str(self):
+        """
+        Returns the serial number.
+        """
+        return self.serial_number
+
+    def part_number_str(self):
+        """
+        Returns the part number.
+        """
+        return self.part_number
+
+    def airflow_fan_type(self):
+        """
+        Returns the airflow fan type.
+        """
+        if self.is_psu_eeprom:
+            return int(self.psu_type.encode('hex'), 16)
+        else:
+            return int(self.fan_type.encode('hex'), 16)
+
+    # System EEPROM specific methods
+    def base_mac_addr(self):
+        """
+        Returns the base MAC address found in the system EEPROM.
+        """
+        return self.base_mac
+
+    def modelstr(self):
+        """
+        Returns the Model name.
+        """
+        return self.model_str
+
+    def serial_str(self):
+        """
+        Returns the servicetag number.
+        """
+        return self.serial
+
+    def system_eeprom_info(self):
+        """
+        Returns a dictionary, where keys are the type code defined in
+        ONIE EEPROM format and values are their corresponding values
+        found in the system EEPROM.
+        """
+        return self.eeprom_tlv_dict

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/fan.py

@@ -0,0 +1,330 @@
+########################################################################
+# Nokia 7215
+#
+# Module contains an implementation of SONiC Platform Base API and
+# provides the Fans' information which are available in the platform
+#
+########################################################################
+
+
+try:
+    import os
+    from sonic_platform_base.fan_base import FanBase
+    from sonic_py_common import logger
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+smbus_present = 1
+try:
+    import smbus
+except ImportError as e:
+    smbus_present = 0
+
+MAX_IXS7215_FAN_SPEED = 19000
+WORKING_IXS7215_FAN_SPEED = 960
+
+sonic_logger = logger.Logger('fan')
+
+
+class Fan(FanBase):
+    """Nokia platform-specific Fan class"""
+
+    def __init__(self, fan_index, fan_drawer, psu_fan=False, dependency=None):
+        self.is_psu_fan = psu_fan
+        ADT7473_DIR = "/sys/bus/i2c/devices/0-002e/"
+
+        if not self.is_psu_fan:
+            # Fan is 1-based in Nokia platforms
+            self.index = fan_index + 1
+            self.fan_drawer = fan_drawer
+            self.set_fan_speed_reg = ADT7473_DIR+"pwm{}".format(self.index)
+            self.get_fan_speed_reg = ADT7473_DIR+"fan{}_input".format(self.index)
+            self.max_fan_speed = MAX_IXS7215_FAN_SPEED
+            self.supported_led_color = ['off', 'green', 'red']
+        else:
+            # this is a PSU Fan
+            self.index = fan_index
+            self.dependency = dependency
+
+    def _get_i2c_register(self, reg_file):
+        # On successful read, returns the value read from given
+        # reg_name and on failure returns 'ERR'
+        rv = 'ERR'
+
+        if (not os.path.isfile(reg_file)):
+            return rv
+
+        try:
+            with open(reg_file, 'r') as fd:
+                rv = fd.read()
+        except Exception as e:
+            rv = 'ERR'
+
+        rv = rv.rstrip('\r\n')
+        rv = rv.lstrip(" ")
+        return rv
+
+    def _set_i2c_register(self, reg_file, value):
+        # On successful write, the value read will be written on
+        # reg_name and on failure returns 'ERR'
+        rv = 'ERR'
+
+        if (not os.path.isfile(reg_file)):
+            return rv
+
+        try:
+            with open(reg_file, 'w') as fd:
+                rv = fd.write(str(value))
+        except Exception as e:
+            rv = 'ERR'
+
+        return rv
+
+    def get_name(self):
+        """
+        Retrieves the name of the Fan
+
+        Returns:
+            string: The name of the Fan
+        """
+        if not self.is_psu_fan:
+            return "Fan{}".format(self.index)
+        else:
+            return "PSU{} Fan".format(self.index)
+
+    def get_presence(self):
+        """
+        Retrieves the presence of the Fan Unit
+
+        Returns:
+            bool: True if Fan is present, False if not
+        """
+        if smbus_present == 0:
+            sonic_logger.log_info("PMON fan-smbus ERROR - presence ")
+            return False
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0xb
+            fanstatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        if self.index == 1:
+            fanstatus = fanstatus & 1
+            if fanstatus == 1:
+                return False
+        if self.index == 2:
+            fanstatus = fanstatus & 2
+            if fanstatus == 2:
+                return False
+        return True
+
+    def get_model(self):
+        """
+        Retrieves the model number of the Fan
+
+        Returns:
+            string: Part number of Fan
+        """
+
+        return 'NA'
+
+    def get_serial(self):
+        """
+        Retrieves the serial number of the Fan
+
+        Returns:
+            string: Serial number of Fan
+        """
+
+        return 'NA'
+
+    def get_status(self):
+        """
+        Retrieves the operational status of the Fan
+
+        Returns:
+            bool: True if Fan is operating properly, False if not
+        """
+        status = False
+
+        fan_speed = self._get_i2c_register(self.get_fan_speed_reg)
+        if (fan_speed != 'ERR'):
+            if (int(fan_speed) > WORKING_IXS7215_FAN_SPEED):
+                status = True
+
+        return status
+
+    def get_direction(self):
+        """
+        Retrieves the fan airflow direction
+        Possible fan directions (relative to port-side of device)
+        Returns:
+            A string, either FAN_DIRECTION_INTAKE or
+            FAN_DIRECTION_EXHAUST depending on fan direction
+        """
+
+        return 'FAN_DIRECTION_INTAKE'
+
+    def get_speed(self):
+        """
+        Retrieves the speed of a Front FAN in the tray in revolutions per
+                 minute defined by 1-based index
+        :param index: An integer, 1-based index of the FAN to query speed
+        :return: integer, denoting front FAN speed
+        """
+        speed = 0
+
+        fan_speed = self._get_i2c_register(self.get_fan_speed_reg)
+        if (fan_speed != 'ERR'):
+            speed = int(fan_speed)
+        else:
+            speed = 0
+
+        return speed
+
+    def get_speed_tolerance(self):
+        """
+        Retrieves the speed tolerance of the fan
+
+        Returns:
+            An integer, the percentage of variance from target speed
+            which is considered tolerable
+        """
+        if self.get_presence():
+            # The tolerance value is fixed as 25% for this platform
+            tolerance = 25
+        else:
+            tolerance = 0
+
+        return tolerance
+
+    def set_speed(self, speed):
+        """
+        Set fan speed to expected value
+        Args:
+            speed: An integer, the percentage of full fan speed to set
+            fan to, in the range 0 (off) to 100 (full speed)
+        Returns:
+            bool: True if set success, False if fail.
+        """
+        if self.is_psu_fan:
+            return False
+
+        # Set current fan duty cycle
+        # - 0x00 : fan off
+        # - 0x40 : 25% duty cycle
+        # - 0x80 : 50% duty cycle (default)
+        # - 0xff : 100% duty cycle (full speed)
+        if speed in range(0, 6):
+            fandutycycle = 0x00
+        elif speed in range(6, 41):
+            fandutycycle = 64
+        elif speed in range(41, 76):
+            fandutycycle = 128
+        elif speed in range(76, 101):
+            fandutycycle = 255
+        else:
+            return False
+
+        rv = self._set_i2c_register(self.set_fan_speed_reg, fandutycycle)
+        if (rv != 'ERR'):
+            return True
+        else:
+            return False
+
+    def set_status_led(self, color):
+        """
+        Set led to expected color
+        Args:
+            color: A string representing the color with which to set the
+                   fan module status LED
+        Returns:
+            bool: True if set success, False if fail.
+
+            off , red and green are the only settings 7215 fans
+        """
+
+        if self.is_psu_fan or (color not in self.supported_led_color):
+            return False
+        if (color == self.STATUS_LED_COLOR_AMBER):
+            return False
+        if (color == self.STATUS_LED_COLOR_RED):
+            value = 0x02
+        elif (color == self.STATUS_LED_COLOR_GREEN):
+            value = 0x01
+        elif (color == self.STATUS_LED_COLOR_OFF):
+            value = 0x00
+        else:
+            return False
+
+        if smbus_present == 0:
+            return False
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICEREG = 0x8
+            original = bus.read_byte_data(DEVICE_ADDRESS, DEVICEREG)
+            if (self.index == 1):
+                new = value << 4
+                ledstatus = original & 0xcf
+                ledstatus = ledstatus | new
+            elif self.index == 2:
+                new = value << 6
+                ledstatus = original & 0x3f
+                ledstatus = ledstatus | new
+            else:
+                return False
+
+            bus.write_byte_data(DEVICE_ADDRESS, DEVICEREG, ledstatus)
+
+        return True
+
+    def get_status_led(self):
+        """
+        Gets the state of the fan status LED
+
+        Returns:
+            A string, one of the predefined STATUS_LED_COLOR_* strings.
+        """
+
+        if self.is_psu_fan:
+            return False
+
+        if smbus_present == 0:
+            return False
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0x8
+            ledstatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        if self.index == 1:
+            ledstatus = (ledstatus & 0x30)
+            ledstatus = ledstatus >> 4
+        elif self.index == 2:
+            ledstatus = (ledstatus & 0xC0)
+            ledstatus = ledstatus >> 6
+        if ledstatus == 0x02:
+            return self.STATUS_LED_COLOR_RED
+        elif ledstatus == 0x1:
+            return self.STATUS_LED_COLOR_GREEN
+        else:
+            return self.STATUS_LED_COLOR_OFF
+
+    def get_target_speed(self):
+        """
+        Retrieves the target (expected) speed of the fan
+
+        Returns:
+            An integer, the percentage of full fan speed, in the range 0
+            (off) to 100 (full speed)
+        """
+        speed = 0
+
+        fan_speed = self._get_i2c_register(self.get_fan_speed_reg)
+        if (fan_speed != 'ERR'):
+            speed = int(fan_speed)
+        else:
+            speed = 0
+
+        return speed

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/fan_drawer.py

@@ -0,0 +1,47 @@
+#############################################################################
+# Nokia
+#
+# Module contains an implementation of SONiC Platform Base API and
+# provides the Fan Drawer status which is available in the platform
+#
+#############################################################################
+
+try:
+    from sonic_platform_base.fan_drawer_base import FanDrawerBase
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+
+class NokiaFanDrawer(FanDrawerBase):
+    def __init__(self, index):
+        super(NokiaFanDrawer, self).__init__()
+        self._index = index + 1
+        self._led = None
+
+    def get_index(self):
+        return self._index
+
+    def get_led(self):
+        return self._led
+
+
+# For Nokia platforms with fan drawer(s)
+class RealDrawer(NokiaFanDrawer):
+    def __init__(self, index):
+        super(RealDrawer, self).__init__(index)
+        self._name = 'drawer{}'.format(self._index)
+
+    def get_name(self):
+        return self._name
+
+
+# For Nokia platforms with no physical fan drawer(s)
+class VirtualDrawer(NokiaFanDrawer):
+    def __init__(self, index):
+        super(VirtualDrawer, self).__init__(index)
+
+    def get_name(self):
+        return 'N/A'
+
+    def set_status_led(self, color):
+        return 'N/A'

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/platform.py

@@ -0,0 +1,22 @@
+#############################################################################
+#
+# Module contains an implementation of SONiC Platform Base API and
+# provides the platform information
+#
+#############################################################################
+
+try:
+    from sonic_platform_base.platform_base import PlatformBase
+    from sonic_platform.chassis import Chassis
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+
+class Platform(PlatformBase):
+    """
+    Nokia platform-specific class
+    """
+
+    def __init__(self):
+        PlatformBase.__init__(self)
+        self._chassis = Chassis()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/psu.py

@@ -0,0 +1,225 @@
+########################################################################
+# Nokia 7215
+#
+# Module contains an implementation of SONiC Platform Base API and
+# provides the PSUs' information which are available in the platform
+#
+########################################################################
+
+try:
+    import sys
+    from sonic_platform_base.psu_base import PsuBase
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+if sys.version_info[0] < 3:
+    import commands as cmd
+else:
+    import subprocess as cmd
+
+smbus_present = 1
+try:
+    import smbus
+except ImportError as e:
+    smbus_present = 0
+
+
+class Psu(PsuBase):
+    """Nokia platform-specific PSU class for 7215 """
+
+    def __init__(self, psu_index):
+        # PSU is 1-based in Nokia platforms
+        self.index = psu_index + 1
+        self._fan_list = []
+
+    def get_name(self):
+        """
+        Retrieves the name of the device
+
+        Returns:
+            string: The name of the device
+        """
+        return "PSU{}".format(self.index)
+
+    def get_presence(self):
+        """
+        Retrieves the presence of the Power Supply Unit (PSU)
+
+        Returns:
+            bool: True if PSU is present, False if not
+        """
+
+        if smbus_present == 0:  # if called from psuutil outside of pmon
+            cmdstatus, psustatus = cmd.getstatusoutput('i2cget -y 0 0x41 0xa')
+            psustatus = int(psustatus, 16)
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0xa
+            psustatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        if self.index == 1:
+            psustatus = psustatus & 1
+            if psustatus == 1:
+                return False
+        if self.index == 2:
+            psustatus = psustatus & 2
+            if psustatus == 2:
+                return False
+
+        return True
+
+    def get_model(self):
+        """
+        Retrieves the part number of the PSU
+
+        Returns:
+            string: Part number of PSU
+        """
+        return self.eeprom.modelstr()
+
+    def get_serial(self):
+        """
+        Retrieves the serial number of the PSU
+
+        Returns:
+            string: Serial number of PSU
+        """
+        return self.eeprom.serial_number_str()
+
+    def get_status(self):
+        """
+        Retrieves the operational status of the PSU
+
+        Returns:
+            bool: True if PSU is operating properly, False if not
+        """
+
+        if smbus_present == 0:
+            cmdstatus, psustatus = cmd.getstatusoutput('i2cget -y 0 0x41 0xa')
+            psustatus = int(psustatus, 16)
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0xa
+            psustatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        if self.index == 1:
+            psustatus = psustatus & 4
+            if psustatus == 4:
+                return True
+        if self.index == 2:
+            psustatus = psustatus & 8
+            if psustatus == 8:
+                return True
+
+        return False
+
+    def get_voltage(self):
+        """
+        Retrieves current PSU voltage output
+
+        Returns:
+            A float number, the output voltage in volts,
+            e.g. 12.1
+        """
+        if smbus_present == 0:
+            cmdstatus, psustatus = cmd.getstatusoutput('i2cget -y 0 0x41 0xa')
+            psustatus = int(psustatus, 16)
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0xa
+            psustatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        if self.index == 1:
+            psustatus = psustatus & 4
+            if psustatus == 4:
+                psu_voltage = 12.0
+                return psu_voltage
+        if self.index == 2:
+            psustatus = psustatus & 8
+            if psustatus == 8:
+                psu_voltage = 12.0
+                return psu_voltage
+
+        psu_voltage = 0.0
+        return psu_voltage
+
+    def get_current(self):
+        """
+        Retrieves present electric current supplied by PSU
+
+        Returns:
+            A float number, electric current in amperes,
+            e.g. 15.4
+        """
+        psu_current = 0.0
+
+        return psu_current
+
+    def get_power(self):
+        """
+        Retrieves current energy supplied by PSU
+
+        Returns:
+            A float number, the power in watts,
+            e.g. 302.6
+        """
+        psu_power = 0.0
+
+        return psu_power
+
+    def get_powergood_status(self):
+        """
+        Retrieves the powergood status of PSU
+        Returns:
+            A boolean, True if PSU has stablized its output voltages and
+            passed all its internal self-tests, False if not.
+        """
+
+        if smbus_present == 0:
+            cmdstatus, psustatus = cmd.getstatusoutput('i2cget -y 0 0x41 0xa')
+            psustatus = int(psustatus, 16)
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0xa
+            psustatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        if self.index == 1:
+            psustatus = psustatus & 4
+            if psustatus == 4:
+                return True
+        if self.index == 2:
+            psustatus = psustatus & 8
+            if psustatus == 8:
+                return True
+
+        return False
+
+    def get_status_led(self):
+        """
+        Gets the state of the PSU status LED
+
+        Returns:
+            A string, one of the predefined STATUS_LED_COLOR_* strings.
+        """
+        if self.get_powergood_status():
+            return self.STATUS_LED_COLOR_GREEN
+        else:
+            return self.STATUS_LED_COLOR_OFF
+
+    def set_status_led(self, color):
+        """
+        Sets the state of the PSU status LED
+        Args:
+            color: A string representing the color with which to set the
+                   PSU status LED
+        Returns:
+            bool: True if status LED state is set successfully, False if
+                  not
+        """
+        # In IXR7220_D1, the firmware running in the PSU controls the LED
+        # and the PSU LED state cannot be changed from CPU.
+        return False

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/sfp.py

@@ -0,0 +1,916 @@
+#############################################################################
+# Nokia
+#
+#############################################################################
+
+import os
+import sys
+import time
+
+try:
+    from sonic_platform_base.sfp_base import SfpBase
+    from sonic_platform_base.sonic_sfp.sff8472 import sff8472InterfaceId
+    from sonic_platform_base.sonic_sfp.sff8472 import sff8472Dom
+    from sonic_platform_base.sonic_sfp.sfputilhelper import SfpUtilHelper
+    from sonic_py_common import logger
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+if sys.version_info[0] < 3:
+    import commands as cmd
+else:
+    import subprocess as cmd
+
+smbus_present = 1
+
+try:
+    import smbus
+except ImportError as e:
+    smbus_present = 0
+
+
+INFO_OFFSET = 128
+DOM_OFFSET = 0
+
+# definitions of the offset and width for values in XCVR info eeprom
+XCVR_INTFACE_BULK_OFFSET = 0
+
+XCVR_INTFACE_BULK_WIDTH_SFP = 21
+XCVR_TYPE_OFFSET = 0
+XCVR_TYPE_WIDTH = 1
+XCVR_EXT_TYPE_OFFSET = 1
+XCVR_EXT_TYPE_WIDTH = 1
+XCVR_CONNECTOR_OFFSET = 2
+XCVR_CONNECTOR_WIDTH = 1
+XCVR_COMPLIANCE_CODE_OFFSET = 3
+XCVR_COMPLIANCE_CODE_WIDTH = 8
+XCVR_ENCODING_OFFSET = 11
+XCVR_ENCODING_WIDTH = 1
+XCVR_NBR_OFFSET = 12
+XCVR_NBR_WIDTH = 1
+XCVR_EXT_RATE_SEL_OFFSET = 13
+XCVR_EXT_RATE_SEL_WIDTH = 1
+XCVR_CABLE_LENGTH_OFFSET = 14
+
+XCVR_CABLE_LENGTH_WIDTH_SFP = 6
+XCVR_VENDOR_NAME_OFFSET = 20
+XCVR_VENDOR_NAME_WIDTH = 16
+XCVR_VENDOR_OUI_OFFSET = 37
+XCVR_VENDOR_OUI_WIDTH = 3
+XCVR_VENDOR_PN_OFFSET = 40
+XCVR_VENDOR_PN_WIDTH = 16
+XCVR_HW_REV_OFFSET = 56
+
+XCVR_HW_REV_WIDTH_SFP = 4
+XCVR_VENDOR_SN_OFFSET = 68
+XCVR_VENDOR_SN_WIDTH = 16
+XCVR_VENDOR_DATE_OFFSET = 84
+XCVR_VENDOR_DATE_WIDTH = 8
+XCVR_DOM_CAPABILITY_OFFSET = 92
+XCVR_DOM_CAPABILITY_WIDTH = 2
+XCVR_INTERFACE_DATA_START = 0
+XCVR_INTERFACE_DATA_SIZE = 92
+
+SFP_DOM_BULK_DATA_START = 96
+SFP_DOM_BULK_DATA_SIZE = 10
+
+SFP_MODULE_ADDRA2_OFFSET = 256
+SFP_MODULE_THRESHOLD_OFFSET = 0
+SFP_MODULE_THRESHOLD_WIDTH = 56
+SFP_CHANNL_THRESHOLD_OFFSET = 112
+SFP_CHANNL_THRESHOLD_WIDTH = 2
+
+SFP_TEMPE_OFFSET = 96
+SFP_TEMPE_WIDTH = 2
+SFP_VOLT_OFFSET = 98
+SFP_VOLT_WIDTH = 2
+SFP_CHANNL_MON_OFFSET = 100
+SFP_CHANNL_MON_WIDTH = 6
+SFP_CHANNL_STATUS_OFFSET = 110
+SFP_CHANNL_STATUS_WIDTH = 1
+
+sfp_cable_length_tup = ('LengthSMFkm-UnitsOfKm', 'LengthSMF(UnitsOf100m)',
+                        'Length50um(UnitsOf10m)', 'Length62.5um(UnitsOfm)',
+                        'LengthCable(UnitsOfm)', 'LengthOM3(UnitsOf10m)')
+
+sfp_compliance_code_tup = ('10GEthernetComplianceCode', 'InfinibandComplianceCode',
+                           'ESCONComplianceCodes', 'SONETComplianceCodes',
+                           'EthernetComplianceCodes', 'FibreChannelLinkLength',
+                           'FibreChannelTechnology', 'SFP+CableTechnology',
+                           'FibreChannelTransmissionMedia', 'FibreChannelSpeed')
+
+COPPER_TYPE = "COPPER"
+SFP_TYPE = "SFP"
+
+# SFP PORT numbers
+SFP_PORT_START = 49
+SFP_PORT_END = 52
+
+SYSLOG_IDENTIFIER = "xcvrd"
+sonic_logger = logger.Logger(SYSLOG_IDENTIFIER)
+
+
+class Sfp(SfpBase):
+    """Platform-specific Sfp class"""
+    """
+    Nokia platform-specific Sfp class
+    """
+
+    # Paths
+    PLATFORM_ROOT_PATH = "/usr/share/sonic/device"
+    PMON_HWSKU_PATH = "/usr/share/sonic/hwsku"
+    HOST_CHK_CMD = "docker > /dev/null 2>&1"
+
+    PLATFORM = "armhf-nokia_ixs7215_52x-r0"
+    HWSKU = "Nokia-7215"
+
+    port_to_i2c_mapping = 0
+
+    def __init__(self, index, sfp_type, eeprom_path, port_i2c_map):
+        SfpBase.__init__(self)
+
+        self.index = index
+        self.port_num = index
+        self.sfp_type = sfp_type
+        self.eeprom_path = eeprom_path
+        self.port_to_i2c_mapping = port_i2c_map
+        self.port_name = sfp_type + str(index)
+        self.port_to_eeprom_mapping = {}
+
+        self.port_to_eeprom_mapping[index] = eeprom_path
+
+        self.info_dict_keys = ['type', 'hardware_rev', 'serial', 'manufacturer',
+                               'model', 'connector', 'encoding', 'ext_identifier',
+                               'ext_rateselect_compliance', 'cable_type', 'cable_length',
+                               'nominal_bit_rate', 'specification_compliance',
+                               'vendor_date', 'vendor_oui']
+
+        self.dom_dict_keys = ['rx_los', 'tx_fault', 'reset_status', 'power_lpmode',
+                              'tx_disable', 'tx_disable_channel', 'temperature',
+                              'voltage', 'rx1power', 'rx2power', 'rx3power',
+                              'rx4power', 'tx1bias', 'tx2bias', 'tx3bias', 'tx4bias',
+                              'tx1power', 'tx2power', 'tx3power', 'tx4power']
+
+        self.threshold_dict_keys = ['temphighalarm', 'temphighwarning', 'templowalarm',
+                                    'templowwarning', 'vcchighalarm', 'vcchighwarning',
+                                    'vcclowalarm', 'vcclowwarning', 'rxpowerhighalarm',
+                                    'rxpowerhighwarning', 'rxpowerlowalarm', 'rxpowerlowwarning',
+                                    'txpowerhighalarm', 'txpowerhighwarning', 'txpowerlowalarm',
+                                    'txpowerlowwarning', 'txbiashighalarm', 'txbiashighwarning',
+                                    'txbiaslowalarm', 'txbiaslowwarning']
+
+        self.dom_supported = False
+        self.dom_temp_supported = False
+        self.dom_volt_supported = False
+        self.dom_rx_power_supported = False
+        self.dom_tx_power_supported = False
+        self.calibration = 0
+
+        self._dom_capability_detect()
+
+    def __convert_string_to_num(self, value_str):
+        if "-inf" in value_str:
+            return 'N/A'
+        elif "Unknown" in value_str:
+            return 'N/A'
+        elif 'dBm' in value_str:
+            t_str = value_str.rstrip('dBm')
+            return float(t_str)
+        elif 'mA' in value_str:
+            t_str = value_str.rstrip('mA')
+            return float(t_str)
+        elif 'C' in value_str:
+            t_str = value_str.rstrip('C')
+            return float(t_str)
+        elif 'Volts' in value_str:
+            t_str = value_str.rstrip('Volts')
+            return float(t_str)
+        else:
+            return 'N/A'
+
+    def __is_host(self):
+        return os.system(self.HOST_CHK_CMD) == 0
+
+    def __get_path_to_port_config_file(self):
+        platform_path = "/".join([self.PLATFORM_ROOT_PATH, self.PLATFORM])
+        hwsku_path = "/".join([platform_path, self.HWSKU]
+                              ) if self.__is_host() else self.PMON_HWSKU_PATH
+        return "/".join([hwsku_path, "port_config.ini"])
+
+    def __read_eeprom_specific_bytes(self, offset, num_bytes):
+        sysfsfile_eeprom = None
+
+        eeprom_raw = []
+        for i in range(0, num_bytes):
+            eeprom_raw.append("0x00")
+
+        sysfs_sfp_i2c_client_eeprom_path = self.port_to_eeprom_mapping[self.port_num]
+
+        try:
+            sysfsfile_eeprom = open(
+                sysfs_sfp_i2c_client_eeprom_path, mode="rb", buffering=0)
+            sysfsfile_eeprom.seek(offset)
+            raw = sysfsfile_eeprom.read(num_bytes)
+            for n in range(0, num_bytes):
+                eeprom_raw[n] = hex(ord(raw[n]))[2:].zfill(2)
+        except Exception as e:
+            pass
+        finally:
+            if sysfsfile_eeprom:
+                sysfsfile_eeprom.close()
+        return eeprom_raw
+
+    def _dom_capability_detect(self):
+        if self.sfp_type == "SFP":
+            sfpi_obj = sff8472InterfaceId()
+            if sfpi_obj is None:
+                return None
+            sfp_dom_capability_raw = self.__read_eeprom_specific_bytes(
+                XCVR_DOM_CAPABILITY_OFFSET, XCVR_DOM_CAPABILITY_WIDTH)
+            if sfp_dom_capability_raw is not None:
+                sfp_dom_capability = int(sfp_dom_capability_raw[0], 16)
+                self.dom_supported = (sfp_dom_capability & 0x40 != 0)
+                if self.dom_supported:
+                    self.dom_temp_supported = True
+                    self.dom_volt_supported = True
+                    self.dom_rx_power_supported = True
+                    self.dom_tx_power_supported = True
+                    if sfp_dom_capability & 0x20 != 0:
+                        self.calibration = 1
+                    elif sfp_dom_capability & 0x10 != 0:
+                        self.calibration = 2
+                    else:
+                        self.calibration = 0
+                else:
+                    self.dom_temp_supported = False
+                    self.dom_volt_supported = False
+                    self.dom_rx_power_supported = False
+                    self.dom_tx_power_supported = False
+                    self.calibration = 0
+                self.dom_tx_disable_supported = (
+                    int(sfp_dom_capability_raw[1], 16) & 0x40 != 0)
+        else:
+            self.dom_supported = False
+            self.dom_temp_supported = False
+            self.dom_volt_supported = False
+            self.dom_rx_power_supported = False
+            self.dom_tx_power_supported = False
+
+    def get_transceiver_info(self):
+        """
+        Retrieves transceiver info of this SFP
+        Returns:
+            A dict which contains following keys/values :
+        ========================================================================
+        keys                       |Value Format   |Information
+        ---------------------------|---------------|----------------------------
+        type                       |1*255VCHAR     |type of SFP
+        hardware_rev               |1*255VCHAR     |hardware version of SFP
+        serial                     |1*255VCHAR     |serial number of the SFP
+        manufacturer               |1*255VCHAR     |SFP vendor name
+        model                      |1*255VCHAR     |SFP model name
+        connector                  |1*255VCHAR     |connector information
+        encoding                   |1*255VCHAR     |encoding information
+        ext_identifier             |1*255VCHAR     |extend identifier
+        ext_rateselect_compliance  |1*255VCHAR     |extended rateSelect compliance
+        cable_length               |INT            |cable length in m
+        nominal_bit_rate           |INT            |nominal bit rate by 100Mbs
+        specification_compliance   |1*255VCHAR     |specification compliance
+        vendor_date                |1*255VCHAR     |vendor date
+        vendor_oui                 |1*255VCHAR     |vendor OUI
+        ========================================================================
+         """
+
+        if self.sfp_type == COPPER_TYPE:
+            return None
+
+        compliance_code_dict = {}
+        transceiver_info_dict = dict.fromkeys(self.info_dict_keys, 'N/A')
+
+        if not self.get_presence():
+            return transceiver_info_dict
+
+        if self.sfp_type == SFP_TYPE:
+            offset = 0
+            vendor_rev_width = XCVR_HW_REV_WIDTH_SFP
+            interface_info_bulk_width = XCVR_INTFACE_BULK_WIDTH_SFP
+
+            sfpi_obj = sff8472InterfaceId()
+            if sfpi_obj is None:
+                print("Error: sfp_object open failed")
+                return None
+
+            sfp_interface_bulk_raw = self.__read_eeprom_specific_bytes(
+                offset + XCVR_INTERFACE_DATA_START, XCVR_INTERFACE_DATA_SIZE)
+            if sfp_interface_bulk_raw is None:
+                return None
+
+            start = XCVR_INTFACE_BULK_OFFSET - XCVR_INTERFACE_DATA_START
+            end = start + interface_info_bulk_width
+            sfp_interface_bulk_data = sfpi_obj.parse_sfp_info_bulk(
+                sfp_interface_bulk_raw[start: end], 0)
+
+            start = XCVR_VENDOR_NAME_OFFSET - XCVR_INTERFACE_DATA_START
+            end = start + XCVR_VENDOR_NAME_WIDTH
+            sfp_vendor_name_data = sfpi_obj.parse_vendor_name(
+                sfp_interface_bulk_raw[start: end], 0)
+
+            start = XCVR_VENDOR_PN_OFFSET - XCVR_INTERFACE_DATA_START
+            end = start + XCVR_VENDOR_PN_WIDTH
+            sfp_vendor_pn_data = sfpi_obj.parse_vendor_pn(
+                sfp_interface_bulk_raw[start: end], 0)
+
+            start = XCVR_HW_REV_OFFSET - XCVR_INTERFACE_DATA_START
+            end = start + vendor_rev_width
+            sfp_vendor_rev_data = sfpi_obj.parse_vendor_rev(
+                sfp_interface_bulk_raw[start: end], 0)
+
+            start = XCVR_VENDOR_SN_OFFSET - XCVR_INTERFACE_DATA_START
+            end = start + XCVR_VENDOR_SN_WIDTH
+            sfp_vendor_sn_data = sfpi_obj.parse_vendor_sn(
+                sfp_interface_bulk_raw[start: end], 0)
+
+            start = XCVR_VENDOR_OUI_OFFSET - XCVR_INTERFACE_DATA_START
+            end = start + XCVR_VENDOR_OUI_WIDTH
+            sfp_vendor_oui_data = sfpi_obj.parse_vendor_oui(
+                sfp_interface_bulk_raw[start: end], 0)
+
+            start = XCVR_VENDOR_DATE_OFFSET - XCVR_INTERFACE_DATA_START
+            end = start + XCVR_VENDOR_DATE_WIDTH
+            sfp_vendor_date_data = sfpi_obj.parse_vendor_date(
+                sfp_interface_bulk_raw[start: end], 0)
+            transceiver_info_dict['type'] = sfp_interface_bulk_data['data']['type']['value']
+            transceiver_info_dict['manufacturer'] = sfp_vendor_name_data['data']['Vendor Name']['value']
+            transceiver_info_dict['model'] = sfp_vendor_pn_data['data']['Vendor PN']['value']
+            transceiver_info_dict['hardware_rev'] = sfp_vendor_rev_data['data']['Vendor Rev']['value']
+            transceiver_info_dict['serial'] = sfp_vendor_sn_data['data']['Vendor SN']['value']
+            transceiver_info_dict['vendor_oui'] = sfp_vendor_oui_data['data']['Vendor OUI']['value']
+            transceiver_info_dict['vendor_date'] = sfp_vendor_date_data[
+                'data']['VendorDataCode(YYYY-MM-DD Lot)']['value']
+            transceiver_info_dict['connector'] = sfp_interface_bulk_data['data']['Connector']['value']
+            transceiver_info_dict['encoding'] = sfp_interface_bulk_data['data']['EncodingCodes']['value']
+            transceiver_info_dict['ext_identifier'] = sfp_interface_bulk_data['data']['Extended Identifier']['value']
+            transceiver_info_dict['ext_rateselect_compliance'] = sfp_interface_bulk_data['data']['RateIdentifier']['value']
+
+            for key in sfp_cable_length_tup:
+                if key in sfp_interface_bulk_data['data']:
+                    transceiver_info_dict['cable_type'] = key
+                    transceiver_info_dict['cable_length'] = str(
+                        sfp_interface_bulk_data['data'][key]['value'])
+
+            for key in sfp_compliance_code_tup:
+                if key in sfp_interface_bulk_data['data']['Specification compliance']['value']:
+                    compliance_code_dict[key] = sfp_interface_bulk_data['data']['Specification compliance']['value'][key]['value']
+            transceiver_info_dict['specification_compliance'] = str(
+                compliance_code_dict)
+
+            transceiver_info_dict['nominal_bit_rate'] = str(
+                sfp_interface_bulk_data['data']['NominalSignallingRate(UnitsOf100Mbd)']['value'])
+
+        return transceiver_info_dict
+
+    def get_transceiver_bulk_status(self):
+        """
+        Retrieves transceiver bulk status of this SFP
+        Returns:
+            A dict which contains following keys/values :
+        ========================================================================
+        keys                       |Value Format   |Information
+        ---------------------------|---------------|----------------------------
+        rx_los                     |BOOLEAN        |RX loss-of-signal status, True if has RX los, False if not.
+        tx_fault                   |BOOLEAN        |TX fault status, True if has TX fault, False if not.
+        reset_status               |BOOLEAN        |reset status, True if SFP in reset, False if not.
+        lp_mode                    |BOOLEAN        |low power mode status, True in lp mode, False if not.
+        tx_disable                 |BOOLEAN        |TX disable status, True TX disabled, False if not.
+        tx_disabled_channel        |HEX            |disabled TX channels in hex, bits 0 to 3 represent channel 0
+                                   |               |to channel 3.
+        temperature                |INT            |module temperature in Celsius
+        voltage                    |INT            |supply voltage in mV
+        tx<n>bias                  |INT            |TX Bias Current in mA, n is the channel number,
+                                   |               |for example, tx2bias stands for tx bias of channel 2.
+        rx<n>power                 |INT            |received optical power in mW, n is the channel number,
+                                   |               |for example, rx2power stands for rx power of channel 2.
+        tx<n>power                 |INT            |TX output power in mW, n is the channel number,
+                                   |               |for example, tx2power stands for tx power of channel 2.
+        ========================================================================
+        """
+
+        transceiver_dom_info_dict = dict.fromkeys(self.dom_dict_keys, 'N/A')
+
+        if self.sfp_type == COPPER_TYPE:
+            return transceiver_dom_info_dict
+
+        if self.sfp_type == SFP_TYPE:
+
+            if not self.dom_supported:
+                return transceiver_dom_info_dict
+
+            offset = 256
+            sfpd_obj = sff8472Dom()
+            if sfpd_obj is None:
+                return transceiver_dom_info_dict
+            sfpd_obj._calibration_type = self.calibration
+
+            dom_data_raw = self.__read_eeprom_specific_bytes(
+                (offset + SFP_DOM_BULK_DATA_START), SFP_DOM_BULK_DATA_SIZE)
+
+            start = SFP_TEMPE_OFFSET - SFP_DOM_BULK_DATA_START
+            end = start + SFP_TEMPE_WIDTH
+            dom_temperature_data = sfpd_obj.parse_temperature(
+                dom_data_raw[start: end], 0)
+
+            start = SFP_VOLT_OFFSET - SFP_DOM_BULK_DATA_START
+            end = start + SFP_VOLT_WIDTH
+            dom_voltage_data = sfpd_obj.parse_voltage(
+                dom_data_raw[start: end], 0)
+
+            start = SFP_CHANNL_MON_OFFSET - SFP_DOM_BULK_DATA_START
+            end = start + SFP_CHANNL_MON_WIDTH
+            dom_channel_monitor_data = sfpd_obj.parse_channel_monitor_params(
+                dom_data_raw[start: end], 0)
+
+            transceiver_dom_info_dict['temperature'] = self.__convert_string_to_num(
+                dom_temperature_data['data']['Temperature']['value'])
+            transceiver_dom_info_dict['voltage'] = self.__convert_string_to_num(
+                dom_voltage_data['data']['Vcc']['value'])
+            transceiver_dom_info_dict['rx1power'] = self.__convert_string_to_num(
+                dom_channel_monitor_data['data']['RXPower']['value'])
+            transceiver_dom_info_dict['tx1bias'] = self.__convert_string_to_num(
+                dom_channel_monitor_data['data']['TXBias']['value'])
+            transceiver_dom_info_dict['tx1power'] = self.__convert_string_to_num(
+                dom_channel_monitor_data['data']['TXPower']['value'])
+
+        transceiver_dom_info_dict['rx_los'] = self.get_rx_los()
+        transceiver_dom_info_dict['tx_fault'] = self.get_tx_fault()
+        transceiver_dom_info_dict['reset_status'] = self.get_reset_status()
+        transceiver_dom_info_dict['lp_mode'] = self.get_lpmode()
+
+        return transceiver_dom_info_dict
+
+    def get_transceiver_threshold_info(self):
+        """
+        Retrieves transceiver threshold info of this SFP
+        Returns:
+            A dict which contains following keys/values :
+        ========================================================================
+        keys                       |Value Format   |Information
+        ---------------------------|---------------|----------------------------
+        temphighalarm              |FLOAT          |High Alarm Threshold value of temperature in Celsius.
+        templowalarm               |FLOAT          |Low Alarm Threshold value of temperature in Celsius.
+        temphighwarning            |FLOAT          |High Warning Threshold value of temperature in Celsius.
+        templowwarning             |FLOAT          |Low Warning Threshold value of temperature in Celsius.
+        vcchighalarm               |FLOAT          |High Alarm Threshold value of supply voltage in mV.
+        vcclowalarm                |FLOAT          |Low Alarm Threshold value of supply voltage in mV.
+        vcchighwarning             |FLOAT          |High Warning Threshold value of supply voltage in mV.
+        vcclowwarning              |FLOAT          |Low Warning Threshold value of supply voltage in mV.
+        rxpowerhighalarm           |FLOAT          |High Alarm Threshold value of received power in dBm.
+        rxpowerlowalarm            |FLOAT          |Low Alarm Threshold value of received power in dBm.
+        rxpowerhighwarning         |FLOAT          |High Warning Threshold value of received power in dBm.
+        rxpowerlowwarning          |FLOAT          |Low Warning Threshold value of received power in dBm.
+        txpowerhighalarm           |FLOAT          |High Alarm Threshold value of transmit power in dBm.
+        txpowerlowalarm            |FLOAT          |Low Alarm Threshold value of transmit power in dBm.
+        txpowerhighwarning         |FLOAT          |High Warning Threshold value of transmit power in dBm.
+        txpowerlowwarning          |FLOAT          |Low Warning Threshold value of transmit power in dBm.
+        txbiashighalarm            |FLOAT          |High Alarm Threshold value of tx Bias Current in mA.
+        txbiaslowalarm             |FLOAT          |Low Alarm Threshold value of tx Bias Current in mA.
+        txbiashighwarning          |FLOAT          |High Warning Threshold value of tx Bias Current in mA.
+        txbiaslowwarning           |FLOAT          |Low Warning Threshold value of tx Bias Current in mA.
+        ========================================================================
+        """
+        transceiver_dom_threshold_info_dict = dict.fromkeys(
+            self.threshold_dict_keys, 'N/A')
+
+        if self.sfp_type == COPPER_TYPE:
+            return transceiver_dom_threshold_info_dict
+
+        if self.sfp_type == SFP_TYPE:
+
+            offset = SFP_MODULE_ADDRA2_OFFSET
+
+            if not self.dom_supported:
+                return transceiver_dom_threshold_info_dict
+
+            sfpd_obj = sff8472Dom(None, self.calibration)
+            if sfpd_obj is None:
+                return transceiver_dom_threshold_info_dict
+
+            dom_module_threshold_raw = self.__read_eeprom_specific_bytes((offset + SFP_MODULE_THRESHOLD_OFFSET),
+                                                                         SFP_MODULE_THRESHOLD_WIDTH)
+            if dom_module_threshold_raw is not None:
+                dom_module_threshold_data = sfpd_obj.parse_alarm_warning_threshold(
+                    dom_module_threshold_raw, 0)
+            else:
+                return transceiver_dom_threshold_info_dict
+
+            # Threshold Data
+            transceiver_dom_threshold_info_dict['temphighalarm'] = dom_module_threshold_data['data']['TempHighAlarm']['value']
+            transceiver_dom_threshold_info_dict['templowalarm'] = dom_module_threshold_data['data']['TempLowAlarm']['value']
+            transceiver_dom_threshold_info_dict['temphighwarning'] = dom_module_threshold_data['data']['TempHighWarning']['value']
+            transceiver_dom_threshold_info_dict['templowwarning'] = dom_module_threshold_data['data']['TempLowWarning']['value']
+            transceiver_dom_threshold_info_dict['vcchighalarm'] = dom_module_threshold_data['data']['VoltageHighAlarm']['value']
+            transceiver_dom_threshold_info_dict['vcclowalarm'] = dom_module_threshold_data['data']['VoltageLowAlarm']['value']
+            transceiver_dom_threshold_info_dict['vcchighwarning'] = dom_module_threshold_data[
+                'data']['VoltageHighWarning']['value']
+            transceiver_dom_threshold_info_dict['vcclowwarning'] = dom_module_threshold_data['data']['VoltageLowWarning']['value']
+            transceiver_dom_threshold_info_dict['txbiashighalarm'] = dom_module_threshold_data['data']['BiasHighAlarm']['value']
+            transceiver_dom_threshold_info_dict['txbiaslowalarm'] = dom_module_threshold_data['data']['BiasLowAlarm']['value']
+            transceiver_dom_threshold_info_dict['txbiashighwarning'] = dom_module_threshold_data['data']['BiasHighWarning']['value']
+            transceiver_dom_threshold_info_dict['txbiaslowwarning'] = dom_module_threshold_data['data']['BiasLowWarning']['value']
+            transceiver_dom_threshold_info_dict['txpowerhighalarm'] = dom_module_threshold_data['data']['TXPowerHighAlarm']['value']
+            transceiver_dom_threshold_info_dict['txpowerlowalarm'] = dom_module_threshold_data['data']['TXPowerLowAlarm']['value']
+            transceiver_dom_threshold_info_dict['txpowerhighwarning'] = dom_module_threshold_data['data']['TXPowerHighWarning']['value']
+            transceiver_dom_threshold_info_dict['txpowerlowwarning'] = dom_module_threshold_data['data']['TXPowerLowWarning']['value']
+            transceiver_dom_threshold_info_dict['rxpowerhighalarm'] = dom_module_threshold_data['data']['RXPowerHighAlarm']['value']
+            transceiver_dom_threshold_info_dict['rxpowerlowalarm'] = dom_module_threshold_data['data']['RXPowerLowAlarm']['value']
+            transceiver_dom_threshold_info_dict['rxpowerhighwarning'] = dom_module_threshold_data['data']['RXPowerHighWarning']['value']
+            transceiver_dom_threshold_info_dict['rxpowerlowwarning'] = dom_module_threshold_data['data']['RXPowerLowWarning']['value']
+
+        return transceiver_dom_threshold_info_dict
+
+    def get_reset_status(self):
+        """
+        Retrieves the reset status of SFP
+        Returns:
+            A Boolean, True if reset enabled, False if disabled
+        """
+        if not self.dom_supported:
+            return False
+        if self.sfp_type == COPPER_TYPE:
+            return False
+
+        if self.sfp_type == SFP_TYPE:
+            offset = 0
+
+            dom_channel_monitor_raw = self.__read_eeprom_specific_bytes(
+                (offset + SFP_CHANNL_STATUS_OFFSET), SFP_CHANNL_STATUS_WIDTH)
+
+            if dom_channel_monitor_raw is not None:
+                return False
+            else:
+                return True
+
+    def get_rx_los(self):
+        """
+        Retrieves the RX LOS (lost-of-signal) status of SFP
+        Returns:
+            A Boolean, True if SFP has RX LOS, False if not.
+        """
+        if self.sfp_type == COPPER_TYPE:
+            return False
+
+        if smbus_present == 0:
+            sonic_logger.log_info("  PMON - smbus ERROR -    ")
+            cmdstatus, rxlosstatus = cmd.getstatusoutput('i2cget -y 0 0x41 0x4')
+            rxlosstatus = int(rxlosstatus, 16)
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0x4
+            rxlosstatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        pos = [1, 2, 4, 8]
+        bit_pos = pos[self.index-SFP_PORT_START]
+        rxlosstatus = rxlosstatus & (bit_pos)
+
+        if rxlosstatus == 0:
+            return True
+
+        return False
+
+    def get_tx_fault(self):
+        """
+        Retrieves the TX fault status of SFP
+        Returns:
+            A Boolean, True if SFP has TX fault, False if not
+            Note : TX fault status is lached until a call to get_tx_fault or a reset.
+        """
+
+        return False
+
+    def get_tx_disable(self):
+        """
+        Retrieves the tx_disable status of this SFP
+        Returns:
+            A Boolean, True if tx_disable is enabled, False if disabled
+        """
+
+        if self.sfp_type == COPPER_TYPE:
+            return False
+
+        # Enable optical SFP Tx
+        if smbus_present == 0:
+            cmdstatus, disstatus = cmd.getstatusoutput('i2cget -y 0 0x41 0x5')
+            sonic_logger.log_info(" PMON - smbus ERROR  tx- DEBUG    ")
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0x5
+            disstatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        pos = [1, 2, 4, 8]
+        bit_pos = pos[self.index-SFP_PORT_START]
+        disstatus = disstatus & (bit_pos)
+
+        if disstatus == 0:
+            return True
+
+        return False
+
+    def get_tx_disable_channel(self):
+        """
+        Retrieves the TX disabled channels in this SFP
+        Returns:
+            A hex of 4 bits (bit 0 to bit 3 as channel 0 to channel 3) to represent
+            TX channels which have been disabled in this SFP.
+            As an example, a returned value of 0x5 indicates that channel 0
+            and channel 2 have been disabled.
+        """
+        tx_disable_list = self.get_tx_disable()
+        if tx_disable_list is None:
+            return 0
+        tx_disabled = 0
+        for i in range(len(tx_disable_list)):
+            if tx_disable_list[i]:
+                tx_disabled |= 1 << i
+        return tx_disabled
+
+    def get_lpmode(self):
+        """
+        Retrieves the lpmode (low power mode) status of this SFP
+        Returns:
+            A Boolean, True if lpmode is enabled, False if disabled
+        """
+        if self.sfp_type == COPPER_TYPE:
+            return False
+        if self.sfp_type == SFP_TYPE:
+            return False
+
+    def get_power_override(self):
+        """
+        Retrieves the power-override status of this SFP
+        Returns:
+            A Boolean, True if power-override is enabled, False if disabled
+        """
+        if self.sfp_type == COPPER_TYPE:
+            return False
+        if self.sfp_type == SFP_TYPE:
+            return False
+
+    def get_temperature(self):
+        """
+        Retrieves the temperature of this SFP
+        Returns:
+            An integer number of current temperature in Celsius
+        """
+        transceiver_bulk_status = self.get_transceiver_bulk_status()
+        return transceiver_bulk_status.get("temperature", "N/A")
+
+    def get_voltage(self):
+        """
+        Retrieves the supply voltage of this SFP
+        Returns:
+            An integer number of supply voltage in mV
+        """
+        transceiver_bulk_status = self.get_transceiver_bulk_status()
+        return transceiver_bulk_status.get("voltage", "N/A")
+
+    def get_tx_bias(self):
+        """
+        Retrieves the TX bias current of this SFP
+        Returns:
+            A list of four integer numbers, representing TX bias in mA
+            for channel 0 to channel 4.
+            Ex. ['110.09', '111.12', '108.21', '112.09']
+        """
+        transceiver_bulk_status = self.get_transceiver_bulk_status()
+        tx1_bs = transceiver_bulk_status.get("tx1bias", "N/A")
+        tx2_bs = transceiver_bulk_status.get("tx2bias", "N/A")
+        tx3_bs = transceiver_bulk_status.get("tx3bias", "N/A")
+        tx4_bs = transceiver_bulk_status.get("tx4bias", "N/A")
+        tx_bias_list = [tx1_bs, tx2_bs, tx3_bs, tx4_bs]
+        return tx_bias_list
+
+    def get_rx_power(self):
+        """
+        Retrieves the received optical power for this SFP
+        Returns:
+            A list of four integer numbers, representing received optical
+            power in mW for channel 0 to channel 4.
+            Ex. ['1.77', '1.71', '1.68', '1.70']
+        """
+        rx_power_list = []
+        if self.sfp_type == COPPER_TYPE:
+            return None
+
+        if self.sfp_type == SFP_TYPE:
+
+            offset = 256
+
+            sfpd_obj = sff8472Dom()
+            if sfpd_obj is None:
+                return None
+
+            if self.dom_supported:
+                sfpd_obj._calibration_type = self.calibration
+
+                dom_channel_monitor_raw = self.__read_eeprom_specific_bytes(
+                    (offset + SFP_CHANNL_MON_OFFSET), SFP_CHANNL_MON_WIDTH)
+                if dom_channel_monitor_raw is not None:
+                    dom_channel_monitor_data = sfpd_obj.parse_channel_monitor_params(
+                        dom_channel_monitor_raw, 0)
+                    rx_power_list.append(self.__convert_string_to_num(
+                        dom_channel_monitor_data['data']['RXPower']['value']))
+                else:
+                    return None
+            else:
+                return None
+
+        return rx_power_list
+
+    def get_tx_power(self):
+        """
+        Retrieves the TX power of this SFP
+        Returns:
+            A list of four integer numbers, representing TX power in mW
+            for channel 0 to channel 4.
+            Ex. ['1.86', '1.86', '1.86', '1.86']
+        """
+        tx_power_list = []
+
+        if self.sfp_type == COPPER_TYPE:
+            return None
+
+        if self.sfp_type == SFP_TYPE:
+
+            offset = 256
+            sfpd_obj = sff8472Dom()
+            if sfpd_obj is None:
+                return None
+
+            if self.dom_supported:
+                sfpd_obj._calibration_type = self.calibration
+
+                dom_channel_monitor_raw = self.__read_eeprom_specific_bytes(
+                    (offset + SFP_CHANNL_MON_OFFSET), SFP_CHANNL_MON_WIDTH)
+                if dom_channel_monitor_raw is not None:
+                    dom_channel_monitor_data = sfpd_obj.parse_channel_monitor_params(
+                        dom_channel_monitor_raw, 0)
+                    tx_power_list.append(self.__convert_string_to_num(
+                        dom_channel_monitor_data['data']['TXPower']['value']))
+                else:
+                    return None
+            else:
+                return None
+        return tx_power_list
+
+    def reset(self):
+        """
+        Reset SFP and return all user module settings to their default srate.
+        Returns:
+            A boolean, True if successful, False if not
+        """
+        if self.sfp_type == COPPER_TYPE:
+            return False
+
+        path = "/sys/class/i2c-adapter/i2c-{0}/{0}-0050/sfp_port_reset"
+        port_ps = path.format(self.port_to_i2c_mapping)
+
+        try:
+            reg_file = open(port_ps, 'w')
+        except IOError as e:
+            # print "Error: unable to open file: %s" % str(e)
+            return False
+
+        # toggle reset
+        reg_file.seek(0)
+        reg_file.write('1')
+        time.sleep(1)
+        reg_file.seek(0)
+        reg_file.write('0')
+        reg_file.close()
+        return True
+
+    def tx_disable(self, tx_disable):
+        """
+        Disable SFP TX for all channels
+        Args:
+            tx_disable : A Boolean, True to enable tx_disable mode, False to disable
+                         tx_disable mode.
+        Returns:
+            A boolean, True if tx_disable is set successfully, False if not
+        """
+
+        return False
+
+    def tx_disable_channel(self, channel, disable):
+        """
+        Sets the tx_disable for specified SFP channels
+        Args:
+            channel : A hex of 4 bits (bit 0 to bit 3) which represent channel 0 to 3,
+                      e.g. 0x5 for channel 0 and channel 2.
+            disable : A boolean, True to disable TX channels specified in channel,
+                      False to enable
+        Returns:
+            A boolean, True if successful, False if not
+        """
+
+        return False
+
+    def set_lpmode(self, lpmode):
+        """
+        Sets the lpmode (low power mode) of SFP
+        Args:
+            lpmode: A Boolean, True to enable lpmode, False to disable it
+            Note  : lpmode can be overridden by set_power_override
+        Returns:
+            A boolean, True if lpmode is set successfully, False if not
+        """
+        if self.sfp_type == COPPER_TYPE:
+            return False
+        if self.sfp_type == SFP_TYPE:
+            return False
+
+    def set_power_override(self, power_override, power_set):
+        """
+        Sets SFP power level using power_override and power_set
+        Args:
+            power_override :
+                    A Boolean, True to override set_lpmode and use power_set
+                    to control SFP power, False to disable SFP power control
+                    through power_override/power_set and use set_lpmode
+                    to control SFP power.
+            power_set :
+                    Only valid when power_override is True.
+                    A Boolean, True to set SFP to low power mode, False to set
+                    SFP to high power mode.
+        Returns:
+            A boolean, True if power-override and power_set are set successfully,
+            False if not
+        """
+
+        return False
+
+    def get_name(self):
+        """
+        Retrieves the name of the device
+            Returns:
+            string: The name of the device
+        """
+        sfputil_helper = SfpUtilHelper()
+        sfputil_helper.read_porttab_mappings(
+            self.__get_path_to_port_config_file())
+        name = sfputil_helper.logical[self.index] or "Unknown"
+        return name
+
+    def get_presence(self):
+        """
+        Retrieves the presence
+        Returns:
+            bool: True if is present, False if not
+        """
+        if self.sfp_type == COPPER_TYPE:
+            return False
+
+        if smbus_present == 0:  # if called from sfputil outside of pmon
+            cmdstatus, sfpstatus = cmd.getstatusoutput('i2cget -y 0 0x41 0x3')
+            sfpstatus = int(sfpstatus, 16)
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0x3
+            sfpstatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+        pos = [1, 2, 4, 8]
+        bit_pos = pos[self.index-SFP_PORT_START]
+        sfpstatus = sfpstatus & (bit_pos)
+
+        if sfpstatus == 0:
+            return True
+
+        return False
+
+    def get_model(self):
+        """
+        Retrieves the model number (or part number) of the device
+        Returns:
+            string: Model/part number of device
+        """
+        transceiver_dom_info_dict = self.get_transceiver_info()
+        return transceiver_dom_info_dict.get("model", "N/A")
+
+    def get_serial(self):
+        """
+        Retrieves the serial number of the device
+        Returns:
+            string: Serial number of device
+        """
+        transceiver_dom_info_dict = self.get_transceiver_info()
+        return transceiver_dom_info_dict.get("serial", "N/A")
+
+    def get_status(self):
+        """
+        Retrieves the operational status of the device
+        Returns:
+            A boolean value, True if device is operating properly, False if not
+        """
+        return self.get_presence()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/sfp_event.py

@@ -0,0 +1,117 @@
+'''
+listen for the SFP change event and return to chassis.
+'''
+import sys
+import time
+from sonic_py_common import logger
+
+smbus_present = 1
+
+try:
+    import smbus
+except ImportError as e:
+    smbus_present = 0
+
+if sys.version_info[0] < 3:
+    import commands as cmd
+else:
+    import subprocess as cmd
+
+# system level event/error
+EVENT_ON_ALL_SFP = '-1'
+SYSTEM_NOT_READY = 'system_not_ready'
+SYSTEM_READY = 'system_become_ready'
+SYSTEM_FAIL = 'system_fail'
+
+# SFP PORT numbers
+SFP_PORT_START = 49
+SFP_PORT_END = 52
+
+SYSLOG_IDENTIFIER = "sfp_event"
+sonic_logger = logger.Logger(SYSLOG_IDENTIFIER)
+
+
+class sfp_event:
+    ''' Listen to plugin/plugout cable events '''
+
+    def __init__(self):
+        self.handle = None
+
+    def initialize(self):
+        self.modprs_register = 0
+        # Get Transceiver status
+        time.sleep(5)
+        self.modprs_register = self._get_transceiver_status()
+        sonic_logger.log_info("Initial SFP presence=%d" % self.modprs_register)
+
+    def deinitialize(self):
+        if self.handle is None:
+            return
+
+    def _get_transceiver_status(self):
+        if smbus_present == 0:
+            sonic_logger.log_info("  PMON - smbus ERROR - DEBUG sfp_event   ")
+            cmdstatus, sfpstatus = cmd.getstatusoutput('i2cget -y 0 0x41 0x3')
+            sfpstatus = int(sfpstatus, 16)
+        else:
+            bus = smbus.SMBus(0)
+            DEVICE_ADDRESS = 0x41
+            DEVICE_REG = 0x3
+            sfpstatus = bus.read_byte_data(DEVICE_ADDRESS, DEVICE_REG)
+
+            sfpstatus = ~sfpstatus
+            sfpstatus = sfpstatus & 0xF
+
+        return sfpstatus
+
+    def check_sfp_status(self, port_change, timeout):
+        """
+        check_sfp_status called from get_change_event, this will return correct
+            status of all 4 SFP ports if there is a change in any of them
+        """
+        start_time = time.time()
+        port = SFP_PORT_START
+        forever = False
+
+        if timeout == 0:
+            forever = True
+        elif timeout > 0:
+            timeout = timeout / float(1000)  # Convert to secs
+        else:
+            return False, {}
+        end_time = start_time + timeout
+
+        if (start_time > end_time):
+            return False, {}  # Time wrap or possibly incorrect timeout
+
+        while (timeout >= 0):
+            # Check for OIR events and return updated port_change
+            reg_value = self._get_transceiver_status()
+            if (reg_value != self.modprs_register):
+                changed_ports = (self.modprs_register ^ reg_value)
+                while (port >= SFP_PORT_START and port <= SFP_PORT_END):
+                    # Mask off the bit corresponding to our port
+                    mask = (1 << port-SFP_PORT_START)
+                    if (changed_ports & mask):
+                        # ModPrsL is active high
+                        if reg_value & mask == 0:
+                            port_change[port] = '0'
+                        else:
+                            port_change[port] = '1'
+                    port += 1
+
+                # Update reg value
+                self.modprs_register = reg_value
+                return True, port_change
+
+            if forever:
+                time.sleep(1)
+            else:
+                timeout = end_time - time.time()
+                if timeout >= 1:
+                    time.sleep(1)  # We poll at 1 second granularity
+                else:
+                    if timeout > 0:
+                        time.sleep(timeout)
+                    return True, {}
+        return False, {}

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/test/README

@@ -0,0 +1 @@
+This directory contains unit tests of the Platform API 2.0

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/test/test-chassis.py

@@ -0,0 +1,68 @@
+#!/usr/bin/env python
+
+try:
+    import sonic_platform.platform
+    import sonic_platform.chassis
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+
+def main():
+    print("-----------------")
+    print("Chassis Unit Test")
+    print("-----------------")
+
+    chassis = sonic_platform.platform.Platform().get_chassis()
+    print("  Chassis name: {}".format(chassis.get_name()))
+
+    print("  Chassis presence: {}".format(chassis.get_presence()))
+
+    print("  Chassis model: {}".format(chassis.get_model()))
+
+    print("  Chassis serial: {}".format(chassis.get_serial()))
+
+    print("  Chassis status: {}".format(chassis.get_status()))
+
+    print("  Chassis serial_number: {}".format(chassis.get_serial_number()))
+
+    print("  Chassis base_mac: {}".format(chassis.get_base_mac()))
+
+    print("  Chassis reboot cause: {}\n".format(chassis.get_reboot_cause()))
+
+    print("  Chassis watchdog: {}".format(chassis.get_watchdog()))
+
+    print("  Chassis num_components: {}".format(chassis.get_num_components()))
+
+    print("  Chassis all_components: {}\n".format(chassis.get_all_components()))
+
+    print("  Chassis num_modules: {}".format(chassis.get_num_modules()))
+
+    print("  Chassis all_modules: {}\n".format(chassis.get_all_modules()))
+
+    print("  Chassis num_fans: {}".format(chassis.get_num_fans()))
+
+    print("  Chassis all_fans: {}\n".format(chassis.get_all_fans()))
+
+    print("  Chassis num_thermals: {}".format(chassis.get_num_thermals()))
+
+    print("  Chassis all_thermals: {}\n".format(chassis.get_all_thermals()))
+
+    print("  Chassis num_sfps: {}".format(chassis.get_num_sfps()))
+
+    print("  Chassis all_sfps: {}\n".format(chassis.get_all_sfps()))
+
+    print("  Chassis eeprom: {}".format(chassis.get_eeprom()))
+
+    print("  Chassis system_eeprom_info: {}\n".format(chassis.get_system_eeprom_info()))
+
+    print("  Chassis get_status_led start : {}\n".format(chassis.get_status_led()))
+    chassis.set_status_led('amber')
+    print("  Chassis get_status_led amber: {}\n".format(chassis.get_status_led()))
+    chassis.set_status_led('green')
+    print("  Chassis get_status_led green: {}\n".format(chassis.get_status_led()))
+
+    return
+
+
+if __name__ == '__main__':
+    main()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/test/test-component.py

@@ -0,0 +1,17 @@
+#!/usr/bin/python
+
+from sonic_platform.chassis import Chassis
+
+
+def main():
+    print("---------------------------")
+    print("Chassis Component Unit Test")
+    print("---------------------------")
+
+    chassis = Chassis()
+
+    return
+
+
+if __name__ == '__main__':
+    main()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/test/test-eeprom.py

@@ -0,0 +1,25 @@
+#!/usr/bin/python
+
+from sonic_platform.chassis import Chassis
+
+
+def main():
+    print("------------------------")
+    print("Chassis eeprom Unit Test")
+    print("------------------------")
+
+    chassis = Chassis()
+
+    eeprom = chassis.get_eeprom()
+
+    print "    Model: {}, Serial: {}".format(eeprom.modelstr(),
+                                             eeprom.serial_str())
+    print "    Part#: {}, Serial#: {}".format(eeprom.part_number_str(),
+                                              eeprom.serial_number_str())
+    print "    Base MAC: {}".format(eeprom.base_mac_addr())
+
+    return
+
+
+if __name__ == '__main__':
+    main()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/test/test-fan.py

@@ -0,0 +1,27 @@
+#!/usr/bin/python
+
+from sonic_platform.chassis import Chassis
+
+
+def main():
+    print("---------------------")
+    print("Chassis Fan Unit Test")
+    print("---------------------")
+
+    chassis = Chassis()
+
+    for fan in chassis.get_all_fans():
+        print("    Name:", fan.get_name())
+        print("        Presence: {}, Status: {}, LED: {}".format(fan.get_presence(),
+                                                                 fan.get_status(),
+                                                                 fan.get_status_led()))
+        print("        Model: {}, Serial: {}".format(fan.get_model(),
+                                                     fan.get_serial()))
+        print("        Direction: {}, Speed: {}RPM, Target Speed: {}%\n".format(fan.get_direction(),
+                                                                                str(fan.get_speed()),
+                                                                                str(fan.get_target_speed())))
+    return
+
+
+if __name__ == '__main__':
+    main()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/test/test-psu.py

@@ -0,0 +1,27 @@
+#!/usr/bin/python
+
+from sonic_platform.chassis import Chassis
+
+
+def main():
+    print("---------------------")
+    print("Chassis PSU Unit Test")
+    print("---------------------")
+
+    chassis = Chassis()
+
+    for psu in chassis.get_all_psus():
+        print("    Name:", psu.get_name())
+        print("        Presence: {}, Status: {}, LED: {}".format(psu.get_presence(),
+                                                                 psu.get_status(),
+                                                                 psu.get_status_led()))
+        print("        Model: {}, Serial: {}".format(psu.get_model(),
+                                                     psu.get_serial()))
+        print("        Voltage: {}, Current: {}, Power: {}\n".format(psu.get_voltage(),
+                                                                     psu.get_current(),
+                                                                     psu.get_power()))
+    return
+
+
+if __name__ == '__main__':
+    main()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/test/test-sfp.py

@@ -0,0 +1,51 @@
+#!/usr/bin/env python
+
+try:
+    import sonic_platform
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+
+def main():
+
+    PORT_START = 49
+    PORT_END = 52
+
+    chassis = sonic_platform.platform.Platform().get_chassis()
+
+    for physical_port in range(PORT_START, PORT_END+1):
+        print(" ")
+        print(" SFP transceiver tests  PORT = ", physical_port)
+
+        presence = chassis.get_sfp(physical_port).get_presence()
+        print("TEST 1 - sfp presence       [ True ] ", physical_port, presence)
+
+        status = chassis.get_sfp(physical_port).get_reset_status()
+        print("TEST 2 - sfp reset status   [ False ] ", physical_port, status)
+
+        txdisable = chassis.get_sfp(physical_port).get_tx_disable()
+        print("TEST 3 - sfp tx_disable     [ False ] ", physical_port, txdisable)
+
+        rxlos = chassis.get_sfp(physical_port).get_rx_los()
+        print("TEST 4 - sfp status rxlos   [ False ] ", physical_port, rxlos)
+
+        txfault = chassis.get_sfp(physical_port).get_tx_fault()
+        print("TEST 5 - sfp status txfault [ False ] ", physical_port, txfault)
+
+        lpmode = chassis.get_sfp(physical_port).get_lpmode()
+        print("TEST 6 - sfp enable lpmode  [ False ] ", physical_port, lpmode)
+
+        trans_info = chassis.get_sfp(physical_port).get_transceiver_info()
+        print("TEST 7 - sfp transceiver info for port:", physical_port, trans_info)
+
+        trans_status = chassis.get_sfp(physical_port).get_transceiver_bulk_status()
+        print("TEST 8 - sfp bulk status for port:", physical_port, trans_status)
+
+        threshold = chassis.get_sfp(physical_port).get_transceiver_threshold_info()
+        print("TEST 9 - sfp bulk status for port:", physical_port, threshold)
+
+    return
+
+
+if __name__ == '__main__':
+    main()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/test/test-thermal.py

@@ -0,0 +1,26 @@
+#!/usr/bin/python
+
+from sonic_platform.chassis import Chassis
+
+
+def main():
+    print("-------------------------")
+    print("Chassis Thermal Unit Test")
+    print("-------------------------")
+
+    chassis = Chassis()
+
+    for thermal in chassis.get_all_thermals():
+        print("    Name:", thermal.get_name())
+        print("        Presence: {}, Status: {}".format(thermal.get_presence(),
+                                                        thermal.get_status()))
+        print("        Model: {}, Serial: {}".format(thermal.get_model(),
+                                                     thermal.get_serial()))
+        print("        Temperature: {}C, Low Threshold: {}C, High Threshold: {}C\n".format(thermal.get_temperature(),
+                                                                                           thermal.get_low_threshold(),
+                                                                                           thermal.get_high_threshold()))
+    return
+
+
+if __name__ == '__main__':
+    main()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/thermal.py

@@ -0,0 +1,226 @@
+########################################################################
+# Nokia IXS7215
+#
+# Module contains an implementation of SONiC Platform Base API and
+# provides the Thermals' information which are available in the platform
+#
+########################################################################
+
+
+try:
+    import os
+    from sonic_platform_base.thermal_base import ThermalBase
+except ImportError as e:
+    raise ImportError(str(e) + "- required module not found")
+
+
+class Thermal(ThermalBase):
+    """Nokia platform-specific Thermal class"""
+
+    I2C_CLASS_DIR = "/sys/class/i2c-adapter/"
+    I2C_DEV_MAPPING = (['i2c-0/0-004a/hwmon/', 1],
+                       ['i2c-0/0-004b/hwmon/', 1],
+                       ['i2c-0/0-002e/', 1],
+                       ['i2c-0/0-002e/', 2],
+                       ['i2c-0/0-002e/', 3])
+
+    HWMON_CLASS_DIR = "/sys/class/hwmon/"
+
+    THERMAL_NAME = ("PCB PHY", "PCB MAC",
+                    "ADT7473-CPU", "ADT7473-LOC", "ADT7473-MAC",
+                    "CPU Core")
+
+    def __init__(self, thermal_index):
+        self.index = thermal_index + 1
+        self.is_psu_thermal = False
+        self.dependency = None
+        self.thermal_high_threshold_file = None
+        # PCB temperature sensors
+        if self.index < 3:
+            i2c_path = self.I2C_CLASS_DIR + self.I2C_DEV_MAPPING[self.index - 1][0]
+            sensor_index = self.I2C_DEV_MAPPING[self.index - 1][1]
+            sensor_max_suffix = "max"
+            sensor_crit_suffix = None
+            hwmon_node = os.listdir(i2c_path)[0]
+            self.SENSOR_DIR = i2c_path + hwmon_node + '/'
+
+        # ADT7473 temperature sensors
+        elif self.index < 6:
+            i2c_path = self.I2C_CLASS_DIR + self.I2C_DEV_MAPPING[self.index - 1][0]
+            sensor_index = self.I2C_DEV_MAPPING[self.index - 1][1]
+            sensor_max_suffix = "max"
+            sensor_crit_suffix = "crit"
+            self.SENSOR_DIR = i2c_path
+
+        # Armada 38x SOC temperature sensor
+        else:
+            dev_path = self.HWMON_CLASS_DIR
+            sensor_index = 1
+            sensor_max_suffix = None
+            sensor_crit_suffix = None
+            hwmon_node = os.listdir(dev_path)[0]
+            self.SENSOR_DIR = dev_path + hwmon_node + '/'
+
+        # sysfs file for current temperature value
+        self.thermal_temperature_file = self.SENSOR_DIR \
+            + "temp{}_input".format(sensor_index)
+
+        # sysfs file for high threshold value if supported for this sensor
+        if sensor_max_suffix:
+            self.thermal_high_threshold_file = self.SENSOR_DIR \
+                + "temp{}_{}".format(sensor_index, sensor_max_suffix)
+        else:
+            self.thermal_high_threshold_file = None
+
+        # sysfs file for crit high threshold value if supported for this sensor
+        if sensor_crit_suffix:
+            self.thermal_high_crit_threshold_file = self.SENSOR_DIR \
+                + "temp{}_{}".format(sensor_index, sensor_crit_suffix)
+        else:
+            self.thermal_high_crit_threshold_file = None
+
+    def _read_sysfs_file(self, sysfs_file):
+        # On successful read, returns the value read from given
+        # sysfs_file and on failure returns 'ERR'
+        rv = 'ERR'
+
+        if (not os.path.isfile(sysfs_file)):
+            return rv
+
+        try:
+            with open(sysfs_file, 'r') as fd:
+                rv = fd.read()
+        except Exception as e:
+            rv = 'ERR'
+
+        rv = rv.rstrip('\r\n')
+        rv = rv.lstrip(" ")
+        return rv
+
+    def get_name(self):
+        """
+        Retrieves the name of the thermal
+
+        Returns:
+            string: The name of the thermal
+        """
+        return self.THERMAL_NAME[self.index - 1]
+
+    def get_presence(self):
+        """
+        Retrieves the presence of the thermal
+
+        Returns:
+            bool: True if thermal is present, False if not
+        """
+        if self.dependency:
+            return self.dependency.get_presence()
+        else:
+            return True
+
+    def get_model(self):
+        """
+        Retrieves the model number (or part number) of the Thermal
+
+        Returns:
+            string: Model/part number of Thermal
+        """
+        return 'NA'
+
+    def get_serial(self):
+        """
+        Retrieves the serial number of the Thermal
+
+        Returns:
+            string: Serial number of Thermal
+        """
+        return 'NA'
+
+    def get_status(self):
+        """
+        Retrieves the operational status of the thermal
+
+        Returns:
+            A boolean value, True if thermal is operating properly,
+            False if not
+        """
+        if self.dependency:
+            return self.dependency.get_status()
+        else:
+            return True
+
+    def get_temperature(self):
+        """
+        Retrieves current temperature reading from thermal
+
+        Returns:
+            A float number of current temperature in Celsius up to
+            nearest thousandth of one degree Celsius, e.g. 30.125
+        """
+        thermal_temperature = self._read_sysfs_file(
+            self.thermal_temperature_file)
+        if (thermal_temperature != 'ERR'):
+            thermal_temperature = float(thermal_temperature) / 1000
+        else:
+            thermal_temperature = 0
+
+        return float("{:.3f}".format(thermal_temperature))
+
+    def get_high_threshold(self):
+        """
+        Retrieves the high threshold temperature of thermal
+
+        Returns:
+            A float number, the high threshold temperature of thermal in
+            Celsius up to nearest thousandth of one degree Celsius,
+            e.g. 30.125
+        """
+
+        # Not implemented for this sensor
+        if not self.thermal_high_threshold_file:
+            raise  NotImplementedError
+
+        thermal_high_threshold = self._read_sysfs_file(
+            self.thermal_high_threshold_file)
+        if (thermal_high_threshold != 'ERR'):
+            thermal_high_threshold = float(thermal_high_threshold) / 1000
+        else:
+            thermal_high_threshold = 0.0
+
+        return float("{:.3f}".format(thermal_high_threshold))
+
+    def set_high_threshold(self, temperature):
+        """
+        Sets the high threshold temperature of thermal
+
+        Args :
+            temperature: A float number up to nearest thousandth of one
+            degree Celsius, e.g. 30.125
+        Returns:
+            A boolean, True if threshold is set successfully, False if
+            not
+        """
+        # Thermal threshold values are pre-defined based on HW.
+        return False
+
+    def get_high_critical_threshold(self):
+        """
+        Retrieves the high critical threshold temperature of thermal
+
+        Returns:
+            A float number, the high critical threshold temperature of thermal in Celsius
+            up to nearest thousandth of one degree Celsius, e.g. 30.125
+        """
+
+        # Not implemented for this sensor
+        if not self.thermal_high_crit_threshold_file:
+            raise  NotImplementedError
+
+        thermal_high_crit_threshold = self._read_sysfs_file(
+            self.thermal_high_crit_threshold_file)
+        if (thermal_high_crit_threshold != 'ERR'):
+            thermal_high_crit_threshold = float(thermal_high_crit_threshold) / 1000
+        else:
+            thermal_high_crit_threshold = 0.0
+
+        return float("{:.3f}".format(thermal_high_crit_threshold))

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/thermal_actions.py

@@ -0,0 +1,192 @@
+from sonic_platform_base.sonic_thermal_control.thermal_action_base import ThermalPolicyActionBase
+from sonic_platform_base.sonic_thermal_control.thermal_json_object import thermal_json_object
+
+from sonic_py_common import logger
+
+sonic_logger = logger.Logger('thermal_actions')
+
+
+class SetFanSpeedAction(ThermalPolicyActionBase):
+    """
+    Base thermal action class to set speed for fans
+    """
+    # JSON field definition
+    JSON_FIELD_SPEED = 'speed'
+    JSON_FIELD_DEFAULT_SPEED = 'default_speed'
+    JSON_FIELD_HIGHTEMP_SPEED = 'hightemp_speed'
+
+    def __init__(self):
+        """
+        Constructor of SetFanSpeedAction
+        """
+        self.default_speed = 50
+        self.hightemp_speed = 100
+        self.speed = self.default_speed
+
+    def load_from_json(self, json_obj):
+        """
+        Construct SetFanSpeedAction via JSON. JSON example:
+            {
+                "type": "fan.all.set_speed"
+                "speed": "100"
+            }
+        :param json_obj: A JSON object representing a SetFanSpeedAction action.
+        :return:
+        """
+        if SetFanSpeedAction.JSON_FIELD_SPEED in json_obj:
+            speed = float(json_obj[SetFanSpeedAction.JSON_FIELD_SPEED])
+            if speed < 0 or speed > 100:
+                raise ValueError('SetFanSpeedAction invalid speed value {} in JSON policy file, valid value should be [0, 100]'.
+                                 format(speed))
+            self.speed = float(json_obj[SetFanSpeedAction.JSON_FIELD_SPEED])
+        else:
+            raise ValueError('SetFanSpeedAction missing mandatory field {} in JSON policy file'.
+                             format(SetFanSpeedAction.JSON_FIELD_SPEED))
+
+    @classmethod
+    def set_all_fan_speed(cls, thermal_info_dict, speed):
+        from .thermal_infos import FanInfo
+        if FanInfo.INFO_NAME in thermal_info_dict and isinstance(thermal_info_dict[FanInfo.INFO_NAME], FanInfo):
+            fan_info_obj = thermal_info_dict[FanInfo.INFO_NAME]
+            for fan in fan_info_obj.get_presence_fans():
+                fan.set_speed(int(speed))
+
+
+@thermal_json_object('fan.all.set_speed')
+class SetAllFanSpeedAction(SetFanSpeedAction):
+    """
+    Action to set speed for all fans
+    """
+    def execute(self, thermal_info_dict):
+        """
+        Set speed for all fans
+        :param thermal_info_dict: A dictionary stores all thermal information.
+        :return:
+        """
+        SetAllFanSpeedAction.set_all_fan_speed(thermal_info_dict, self.speed)
+
+
+@thermal_json_object('thermal.temp_check_and_set_all_fan_speed')
+class ThermalRecoverAction(SetFanSpeedAction):
+    """
+    Action to check thermal sensor temperature change status and set speed for all fans
+    """
+
+    def load_from_json(self, json_obj):
+        """
+        Construct ThermalRecoverAction via JSON. JSON example:
+            {
+                "type": "thermal.temp_check_and_set_all_fan_speed"
+                "default_speed": "50"
+                "hightemp_speed": "100"
+            }
+        :param json_obj: A JSON object representing a ThermalRecoverAction action.
+        :return:
+        """
+        if SetFanSpeedAction.JSON_FIELD_DEFAULT_SPEED in json_obj:
+            default_speed = float(json_obj[SetFanSpeedAction.JSON_FIELD_DEFAULT_SPEED])
+            if default_speed < 0 or default_speed > 100:
+                raise ValueError('SetFanSpeedAction invalid default speed value {} in JSON policy file, valid value should be [0, 100]'.
+                                 format(default_speed))
+            self.default_speed = float(json_obj[SetFanSpeedAction.JSON_FIELD_DEFAULT_SPEED])
+        else:
+            raise ValueError('SetFanSpeedAction missing mandatory field {} in JSON policy file'.
+                             format(SetFanSpeedAction.JSON_FIELD_DEFAULT_SPEED))
+
+        if SetFanSpeedAction.JSON_FIELD_HIGHTEMP_SPEED in json_obj:
+            hightemp_speed = float(json_obj[SetFanSpeedAction.JSON_FIELD_HIGHTEMP_SPEED])
+            if hightemp_speed < 0 or hightemp_speed > 100:
+                raise ValueError('SetFanSpeedAction invalid hightemp speed value {} in JSON policy file, valid value should be [0, 100]'.
+                                 format(hightemp_speed))
+            self.hightemp_speed = float(json_obj[SetFanSpeedAction.JSON_FIELD_HIGHTEMP_SPEED])
+        else:
+            raise ValueError('SetFanSpeedAction missing mandatory field {} in JSON policy file'.
+                             format(SetFanSpeedAction.JSON_FIELD_HIGHTEMP_SPEED))
+
+        sonic_logger.log_warning("ThermalRecoverAction: default: {}, hightemp: {}".format(self.default_speed, self.hightemp_speed))
+
+    def execute(self, thermal_info_dict):
+        """
+        Check check thermal sensor temperature change status and set speed for all fans
+        :param thermal_info_dict: A dictionary stores all thermal information.
+        :return:
+        """
+        from .thermal_infos import ThermalInfo
+        if ThermalInfo.INFO_NAME in thermal_info_dict and \
+           isinstance(thermal_info_dict[ThermalInfo.INFO_NAME], ThermalInfo):
+
+            thermal_info_obj = thermal_info_dict[ThermalInfo.INFO_NAME]
+            if thermal_info_obj.is_warm_up_and_over_high_threshold():
+                ThermalRecoverAction.set_all_fan_speed(thermal_info_dict, self.hightemp_speed)
+            elif thermal_info_obj.is_cool_down_and_below_low_threshold():
+                ThermalRecoverAction.set_all_fan_speed(thermal_info_dict, self.default_speed)
+
+
+@thermal_json_object('switch.shutdown')
+class SwitchPolicyAction(ThermalPolicyActionBase):
+    """
+    Base class for thermal action. Once all thermal conditions in a thermal policy are matched,
+    all predefined thermal action will be executed.
+    """
+    def execute(self, thermal_info_dict):
+        """
+        Take action when thermal condition matches. For example, adjust speed of fan or shut
+        down the switch.
+        :param thermal_info_dict: A dictionary stores all thermal information.
+        :return:
+        """
+        sonic_logger.log_warning("Alarm for temperature critical is detected, reboot Device")
+        # import os
+        # os.system('reboot')
+
+
+@thermal_json_object('thermal_control.control')
+class ControlThermalAlgoAction(ThermalPolicyActionBase):
+    """
+    Action to control the thermal control algorithm
+    """
+    # JSON field definition
+    JSON_FIELD_STATUS = 'status'
+
+    def __init__(self):
+        self.status = True
+
+    def load_from_json(self, json_obj):
+        """
+        Construct ControlThermalAlgoAction via JSON. JSON example:
+            {
+                "type": "thermal_control.control"
+                "status": "true"
+            }
+        :param json_obj: A JSON object representing a ControlThermalAlgoAction action.
+        :return:
+        """
+        if ControlThermalAlgoAction.JSON_FIELD_STATUS in json_obj:
+            status_str = json_obj[ControlThermalAlgoAction.JSON_FIELD_STATUS].lower()
+            if status_str == 'true':
+                self.status = True
+            elif status_str == 'false':
+                self.status = False
+            else:
+                raise ValueError('Invalid {} field value, please specify true of false'.
+                                 format(ControlThermalAlgoAction.JSON_FIELD_STATUS))
+        else:
+            raise ValueError('ControlThermalAlgoAction '
+                             'missing mandatory field {} in JSON policy file'.
+                             format(ControlThermalAlgoAction.JSON_FIELD_STATUS))
+
+    def execute(self, thermal_info_dict):
+        """
+        Disable thermal control algorithm
+        :param thermal_info_dict: A dictionary stores all thermal information.
+        :return:
+        """
+        from .thermal_infos import ChassisInfo
+        if ChassisInfo.INFO_NAME in thermal_info_dict:
+            chassis_info_obj = thermal_info_dict[ChassisInfo.INFO_NAME]
+            chassis = chassis_info_obj.get_chassis()
+            thermal_manager = chassis.get_thermal_manager()
+            if self.status:
+                thermal_manager.start_thermal_control_algorithm()
+            else:
+                thermal_manager.stop_thermal_control_algorithm()

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/thermal_conditions.py

@@ -0,0 +1,81 @@
+from sonic_platform_base.sonic_thermal_control.thermal_condition_base import ThermalPolicyConditionBase
+from sonic_platform_base.sonic_thermal_control.thermal_json_object import thermal_json_object
+
+
+class FanCondition(ThermalPolicyConditionBase):
+    def get_fan_info(self, thermal_info_dict):
+        from .thermal_infos import FanInfo
+        if FanInfo.INFO_NAME in thermal_info_dict and isinstance(thermal_info_dict[FanInfo.INFO_NAME], FanInfo):
+            return thermal_info_dict[FanInfo.INFO_NAME]
+        else:
+            return None
+
+
+@thermal_json_object('fan.any.absence')
+class AnyFanAbsenceCondition(FanCondition):
+    def is_match(self, thermal_info_dict):
+        fan_info_obj = self.get_fan_info(thermal_info_dict)
+        return len(fan_info_obj.get_absence_fans()) > 0 if fan_info_obj else False
+
+
+@thermal_json_object('fan.all.absence')
+class AllFanAbsenceCondition(FanCondition):
+    def is_match(self, thermal_info_dict):
+        fan_info_obj = self.get_fan_info(thermal_info_dict)
+        return len(fan_info_obj.get_presence_fans()) == 0 if fan_info_obj else False
+
+
+@thermal_json_object('fan.all.presence')
+class AllFanPresenceCondition(FanCondition):
+    def is_match(self, thermal_info_dict):
+        fan_info_obj = self.get_fan_info(thermal_info_dict)
+        return len(fan_info_obj.get_absence_fans()) == 0 if fan_info_obj else False
+
+
+class ThermalCondition(ThermalPolicyConditionBase):
+    def get_thermal_info(self, thermal_info_dict):
+        from .thermal_infos import ThermalInfo
+        if ThermalInfo.INFO_NAME in thermal_info_dict and isinstance(thermal_info_dict[ThermalInfo.INFO_NAME], ThermalInfo):
+            return thermal_info_dict[ThermalInfo.INFO_NAME]
+        else:
+            return None
+
+
+@thermal_json_object('thermal.over.high_critical_threshold')
+class ThermalOverHighCriticalCondition(ThermalCondition):
+    def is_match(self, thermal_info_dict):
+        thermal_info_obj = self.get_thermal_info(thermal_info_dict)
+        if thermal_info_obj:
+            return thermal_info_obj.is_over_high_critical_threshold()
+        else:
+            return False
+
+
+class PsuCondition(ThermalPolicyConditionBase):
+    def get_psu_info(self, thermal_info_dict):
+        from .thermal_infos import PsuInfo
+        if PsuInfo.INFO_NAME in thermal_info_dict and isinstance(thermal_info_dict[PsuInfo.INFO_NAME], PsuInfo):
+            return thermal_info_dict[PsuInfo.INFO_NAME]
+        else:
+            return None
+
+
+@thermal_json_object('psu.any.absence')
+class AnyPsuAbsenceCondition(PsuCondition):
+    def is_match(self, thermal_info_dict):
+        psu_info_obj = self.get_psu_info(thermal_info_dict)
+        return len(psu_info_obj.get_absence_psus()) > 0 if psu_info_obj else False
+
+
+@thermal_json_object('psu.all.absence')
+class AllPsuAbsenceCondition(PsuCondition):
+    def is_match(self, thermal_info_dict):
+        psu_info_obj = self.get_psu_info(thermal_info_dict)
+        return len(psu_info_obj.get_presence_psus()) == 0 if psu_info_obj else False
+
+
+@thermal_json_object('psu.all.presence')
+class AllPsuPresenceCondition(PsuCondition):
+    def is_match(self, thermal_info_dict):
+        psu_info_obj = self.get_psu_info(thermal_info_dict)
+        return len(psu_info_obj.get_absence_psus()) == 0 if psu_info_obj else False

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/thermal_infos.py

@@ -0,0 +1,210 @@
+from sonic_platform_base.sonic_thermal_control.thermal_info_base import ThermalPolicyInfoBase
+from sonic_platform_base.sonic_thermal_control.thermal_json_object import thermal_json_object
+
+
+@thermal_json_object('fan_info')
+class FanInfo(ThermalPolicyInfoBase):
+    """
+    Fan information needed by thermal policy
+    """
+
+    # Fan information name
+    INFO_NAME = 'fan_info'
+
+    def __init__(self):
+        self._absence_fans = set()
+        self._presence_fans = set()
+        self._status_changed = False
+
+    def collect(self, chassis):
+        """
+        Collect absence and presence fans.
+        :param chassis: The chassis object
+        :return:
+        """
+        self._status_changed = False
+        for fan in chassis.get_all_fans():
+            if fan.get_presence() and fan not in self._presence_fans:
+                self._presence_fans.add(fan)
+                self._status_changed = True
+                if fan in self._absence_fans:
+                    self._absence_fans.remove(fan)
+            elif not fan.get_presence() and fan not in self._absence_fans:
+                self._absence_fans.add(fan)
+                self._status_changed = True
+                if fan in self._presence_fans:
+                    self._presence_fans.remove(fan)
+
+    def get_absence_fans(self):
+        """
+        Retrieves absence fans
+        :return: A set of absence fans
+        """
+        return self._absence_fans
+
+    def get_presence_fans(self):
+        """
+        Retrieves presence fans
+        :return: A set of presence fans
+        """
+        return self._presence_fans
+
+    def is_status_changed(self):
+        """
+        Retrieves if the status of fan information changed
+        :return: True if status changed else False
+        """
+        return self._status_changed
+
+
+@thermal_json_object('thermal_info')
+class ThermalInfo(ThermalPolicyInfoBase):
+    """
+    Thermal information needed by thermal policy
+    """
+
+    # Fan information name
+    INFO_NAME = 'thermal_info'
+
+    def __init__(self):
+        self.init = False
+        self._old_avg_temp = 0
+        self._current_avg_temp = 0
+        self._high_crital_threshold = 75
+        self._high_threshold = 45
+        self._low_threshold = 40
+
+    def collect(self, chassis):
+        """
+        Collect thermal sensor temperature change status
+        :param chassis: The chassis object
+        :return:
+        """
+        self._temps = []
+        self._over_high_critical_threshold = False
+        self._warm_up_and_over_high_threshold = False
+        self._cool_down_and_below_low_threshold = False
+
+        # Calculate average temp within the device
+        temp = 0
+        num_of_thermals = chassis.get_num_thermals()
+        for index in range(num_of_thermals):
+            self._temps.insert(index, chassis.get_thermal(index).get_temperature())
+            temp += self._temps[index]
+
+        self._current_avg_temp = temp / num_of_thermals
+
+        # Special case if first time
+        if self.init is False:
+            self._old_avg_temp = self._current_avg_temp
+            self.init = True
+
+        # Check if new average temp exceeds high threshold value
+        if self._current_avg_temp >= self._old_avg_temp and self._current_avg_temp >= self._high_threshold:
+            self._warm_up_and_over_high_threshold = True
+
+        # Check if new average temp exceeds low threshold value
+        if self._current_avg_temp <= self._old_avg_temp and self._current_avg_temp <= self._low_threshold:
+            self._cool_down_and_below_low_threshold = True
+
+        self._old_avg_temp = self._current_avg_temp
+
+    def is_warm_up_and_over_high_threshold(self):
+        """
+        Retrieves if the temperature is warm up and over high threshold
+        :return: True if the temperature is warm up and over high threshold else False
+        """
+        return self._warm_up_and_over_high_threshold
+
+    def is_cool_down_and_below_low_threshold(self):
+        """
+        Retrieves if the temperature is cold down and below low threshold
+        :return: True if the temperature is cold down and below low threshold else False
+        """
+        return self._cool_down_and_below_low_threshold
+
+    def is_over_high_critical_threshold(self):
+        """
+        Retrieves if the temperature is over high critical threshold
+        :return: True if the temperature is over high critical threshold else False
+        """
+        return self._over_high_critical_threshold
+
+
+@thermal_json_object('psu_info')
+class PsuInfo(ThermalPolicyInfoBase):
+    """
+    PSU information needed by thermal policy
+    """
+    INFO_NAME = 'psu_info'
+
+    def __init__(self):
+        self._absence_psus = set()
+        self._presence_psus = set()
+        self._status_changed = False
+
+    def collect(self, chassis):
+        """
+        Collect absence and presence PSUs.
+        :param chassis: The chassis object
+        :return:
+        """
+        self._status_changed = False
+        for psu in chassis.get_all_psus():
+            if psu.get_presence() and psu.get_powergood_status() and psu not in self._presence_psus:
+                self._presence_psus.add(psu)
+                self._status_changed = True
+                if psu in self._absence_psus:
+                    self._absence_psus.remove(psu)
+            elif (not psu.get_presence() or not psu.get_powergood_status()) and psu not in self._absence_psus:
+                self._absence_psus.add(psu)
+                self._status_changed = True
+                if psu in self._presence_psus:
+                    self._presence_psus.remove(psu)
+
+    def get_absence_psus(self):
+        """
+        Retrieves presence PSUs
+        :return: A set of absence PSUs
+        """
+        return self._absence_psus
+
+    def get_presence_psus(self):
+        """
+        Retrieves presence PSUs
+        :return: A set of presence fans
+        """
+        return self._presence_psus
+
+    def is_status_changed(self):
+        """
+        Retrieves if the status of PSU information changed
+        :return: True if status changed else False
+        """
+        return self._status_changed
+
+
+@thermal_json_object('chassis_info')
+class ChassisInfo(ThermalPolicyInfoBase):
+    """
+    Chassis information needed by thermal policy
+    """
+    INFO_NAME = 'chassis_info'
+
+    def __init__(self):
+        self._chassis = None
+
+    def collect(self, chassis):
+        """
+        Collect platform chassis.
+        :param chassis: The chassis object
+        :return:
+        """
+        self._chassis = chassis
+
+    def get_chassis(self):
+        """
+        Retrieves platform chassis object
+        :return: A platform chassis object.
+        """
+        return self._chassis

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/thermal_manager.py

@@ -0,0 +1,49 @@
+from sonic_platform_base.sonic_thermal_control.thermal_manager_base import ThermalManagerBase
+from .thermal_actions import *
+from .thermal_conditions import *
+from .thermal_infos import *
+
+
+class ThermalManager(ThermalManagerBase):
+    THERMAL_ALGORITHM_CONTROL_PATH = '/var/run/hw-management/config/suspend'
+
+    @classmethod
+    def start_thermal_control_algorithm(cls):
+        """
+        Start thermal control algorithm
+
+        Returns:
+            bool: True if set success, False if fail.
+        """
+        cls._control_thermal_control_algorithm(False)
+
+    @classmethod
+    def stop_thermal_control_algorithm(cls):
+        """
+        Stop thermal control algorithm
+
+        Returns:
+            bool: True if set success, False if fail.
+        """
+        cls._control_thermal_control_algorithm(True)
+
+    @classmethod
+    def _control_thermal_control_algorithm(cls, suspend):
+        """
+        Control thermal control algorithm
+
+        Args:
+            suspend: Bool, indicate suspend the algorithm or not
+
+        Returns:
+            bool: True if set success, False if fail.
+        """
+        status = True
+        write_value = 1 if suspend else 0
+        try:
+            with open(cls.THERMAL_ALGORITHM_CONTROL_PATH, 'w') as control_file:
+                control_file.write(str(write_value))
+        except (ValueError, IOError):
+            status = False
+
+        return status

platform/marvell-armhf/sonic-platform-nokia/7215/sonic_platform/watchdog.py

@@ -0,0 +1,135 @@
+"""
+ARMADA 38x Watchdog - one 32 bit cpu watchdog per cpu - 2 watchdogs ( page 662)
+
+Module contains an implementation of SONiC Platform Base API and
+provides access to hardware watchdog
+"""
+
+import os
+import fcntl
+import array
+
+from sonic_platform_base.watchdog_base import WatchdogBase
+from sonic_py_common import logger
+
+""" ioctl constants """
+IO_READ = 0x80000000
+IO_SIZE_INT = 0x00040000
+IO_TYPE_WATCHDOG = ord('W') << 8
+
+WDR_INT = IO_READ | IO_SIZE_INT | IO_TYPE_WATCHDOG
+
+""" Watchdog ioctl commands """
+WDIOC_SETOPTIONS = 4 | WDR_INT
+WDIOC_KEEPALIVE = 5 | WDR_INT
+WDIOC_GETTIMEOUT = 7 | WDR_INT
+
+""" Watchdog status constants """
+WDIOS_DISABLECARD = 0x0001
+WDIOS_ENABLECARD = 0x0002
+
+""" watchdog sysfs """
+WD_SYSFS_PATH = "/sys/class/watchdog/"
+
+WD_COMMON_ERROR = -1
+
+sonic_logger = logger.Logger()
+
+
+class WatchdogImplBase(WatchdogBase):
+    """
+    Base class that implements common logic for interacting
+    with watchdog using ioctl commands
+    """
+
+    def __init__(self, wd_device_path):
+        """
+        Open a watchdog handle
+        @param wd_device_path Path to watchdog device
+        """
+
+        self.watchdog_path = wd_device_path
+        self.watchdog = os.open(self.watchdog_path, os.O_WRONLY)
+
+        # Opening a watchdog descriptor starts
+        # watchdog timer; by default it should be stopped
+        self._disablewatchdog()
+        self.armed = False
+        self.timeout = self._gettimeout()
+
+    def disarm(self):
+        """
+        Disarm the hardware watchdog
+
+        Returns:
+            A boolean, True if watchdog is disarmed successfully, False
+            if not
+        """
+        sonic_logger.log_info(" Debug disarm watchdog ")
+
+        try:
+            self._disablewatchdog()
+            self.armed = False
+            self.timeout = 0
+        except IOError:
+            return False
+
+        return True
+
+    def _disablewatchdog(self):
+        """
+        Turn off the watchdog timer
+        """
+
+        req = array.array('h', [WDIOS_DISABLECARD])
+        fcntl.ioctl(self.watchdog, WDIOC_SETOPTIONS, req, False)
+
+    def _gettimeout(self):
+        """
+        Get watchdog timeout
+        @return watchdog timeout
+        """
+
+        req = array.array('I', [0])
+        fcntl.ioctl(self.watchdog, WDIOC_GETTIMEOUT, req, True)
+
+        return int(req[0])
+
+    def arm(self, seconds):
+        """
+        Implements arm WatchdogBase API
+        """
+        sonic_logger.log_info(" Debug arm watchdog4 ")
+        ret = WD_COMMON_ERROR
+        if seconds < 0:
+            return ret
+
+        try:
+            if self.timeout != seconds:
+                self.timeout = self._settimeout(seconds)
+            if self.armed:
+                self._keepalive()
+            else:
+                sonic_logger.log_info(" Debug arm watchdog5 ")
+                self._enablewatchdog()
+                self.armed = True
+            ret = self.timeout
+        except IOError:
+            pass
+
+        return ret
+
+    def _enablewatchdog(self):
+        """
+        Turn on the watchdog timer
+        """
+
+        req = array.array('h', [WDIOS_ENABLECARD])
+        fcntl.ioctl(self.watchdog, WDIOC_SETOPTIONS, req, False)
+
+    def _keepalive(self):
+        """
+        Keep alive watchdog timer
+        """
+
+        fcntl.ioctl(self.watchdog, WDIOC_KEEPALIVE)

platform/marvell-armhf/sonic-platform-nokia/debian/changelog

@@ -0,0 +1,5 @@
+sonic-platform-nokia-7215 (1.0) unstable; urgency=low
+
+  * Add support for nokia-7215.
+
+ -- Nokia <carl.keene@nokia.com>  Wed, 15 Apr 2020 09:35:58 +0800

platform/marvell-armhf/sonic-platform-nokia/debian/compat

@@ -0,0 +1 @@
+9

platform/marvell-armhf/sonic-platform-nokia/debian/control

@@ -0,0 +1,15 @@
+Source: sonic-platform-nokia-7215
+Section: unknown
+Priority: optional
+Maintainer: Nokia <carl.keene@nokia.com>
+Build-Depends: debhelper (>=9)
+Standards-Version: 3.9.6
+Homepage: <insert the upstream URL, if relevant>
+#Vcs-Git: git://anonscm.debian.org/collab-maint/sonic-platform-et6448m.git
+#Vcs-Browser: https://anonscm.debian.org/cgit/collab-maint/sonic-platform-et6448m.git
+
+Package: sonic-platform-nokia-7215
+Architecture: armhf
+Depends: ${misc:Depends}
+Description: <insert up to 60 chars description>
+ <insert long description, indented with spaces>

platform/marvell-armhf/sonic-platform-nokia/debian/rules

@@ -0,0 +1,66 @@
+#!/usr/bin/make -f
+# See debhelper(7) (uncomment to enable)
+# output every command that modifies files on the build system.
+#export DH_VERBOSE = 1
+
+include /usr/share/dpkg/pkg-info.mk
+#--------------------------------------------------------
+
+PACKAGE_PRE_NAME := sonic-platform-nokia
+MOD_SRC_DIR:= $(shell pwd)
+MODULE_DIRS:= 7215
+UTILS_DIR := utils
+SERVICE_DIR := service
+PLATFORM_DIR := sonic_platform
+
+%:
+	dh $@ --with systemd,python2,python3 --buildsystem=pybuild
+
+clean:
+	dh_testdir
+	dh_testroot
+	dh_clean
+
+build:
+	(for mod in $(MODULE_DIRS); do \
+		python2 $${mod}/setup.py bdist_wheel -d $(MOD_SRC_DIR)/$${mod}; \
+		python3 $${mod}/setup.py bdist_wheel -d $(MOD_SRC_DIR)/$${mod}; \
+	done)
+
+binary: binary-arch binary-indep
+	# Nothing to do
+
+binary-arch:
+	# Nothing to do
+
+binary-indep:
+	dh_testdir
+	dh_installdirs
+
+	# Custom package commands
+	(for mod in $(MODULE_DIRS); do \
+		dh_installdirs -p$(PACKAGE_PRE_NAME)-$${mod} /usr/local/bin; \
+		cp $(MOD_SRC_DIR)/$${mod}/$(SERVICE_DIR)/*.service debian/$(PACKAGE_PRE_NAME)-$${mod}/lib/systemd/system/; \
+		cp $(MOD_SRC_DIR)/$${mod}/$(UTILS_DIR)/* debian/$(PACKAGE_PRE_NAME)-$${mod}/usr/local/bin/; \
+		python2 $${mod}/setup.py install --root=$(MOD_SRC_DIR)/debian/$(PACKAGE_PRE_NAME)-$${mod} --install-layout=deb; \
+		python3 $${mod}/setup.py install --root=$(MOD_SRC_DIR)/debian/$(PACKAGE_PRE_NAME)-$${mod} --install-layout=deb; \
+	done)
+
+	# Resuming debhelper scripts
+	dh_testroot
+	dh_install
+	dh_installchangelogs
+	dh_installdocs
+	dh_systemd_enable
+	dh_installinit
+	dh_systemd_start
+	dh_link
+	dh_fixperms
+	dh_compress
+	dh_strip
+	dh_installdeb
+	dh_gencontrol
+	dh_md5sums
+	dh_builddeb
+
+.PHONY: build binary binary-arch binary-indep clean

platform/marvell-armhf/sonic-platform-nokia/debian/sonic-platform-nokia-7215.install

@@ -0,0 +1,5 @@
+nokia-7215_plt_setup.sh usr/sbin
+7215/scripts/nokia-7215init.sh  usr/local/bin
+7215/service/nokia-7215init.service  etc/systemd/system
+7215/sonic_platform-1.0-py2-none-any.whl usr/share/sonic/device/armhf-nokia_ixs7215_52x-r0
+7215/sonic_platform-1.0-py3-none-any.whl usr/share/sonic/device/armhf-nokia_ixs7215_52x-r0

platform/marvell-armhf/sonic-platform-nokia/debian/sonic-platform-nokia-7215.postinst

@@ -0,0 +1,11 @@
+#!/bin/sh
+# postinst script for sonic-platform-nokia-7215
+#
+# see: dh_installdeb(1)
+
+sh /usr/sbin/nokia-7215_plt_setup.sh
+systemctl enable nokia-7215init.service
+systemctl start nokia-7215init.service
+
+exit 0
+

platform/marvell-armhf/sonic-platform-nokia/nokia-7215_plt_setup.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+fw_uboot_env_cfg()
+{
+    echo "Setting up U-Boot environment..."
+
+    MACH_FILE="/host/machine.conf"
+    PLATFORM=`sed -n 's/onie_platform=\(.*\)/\1/p' $MACH_FILE`
+
+    if [ "$PLATFORM" = "armhf-nokia_ixs7215_52x-r0" ]; then
+	# Ixs7215 / IPD6448M board Uboot ENV offset
+        FW_ENV_DEFAULT='/dev/mtd0 0x00100000 0x10000 0x10000'
+
+        demo_part=$(sgdisk -p /dev/sda | grep -e "SONiC-OS")
+        if [ -z "$demo_part" ]; then
+            # ET6448M Board - For Backward compatibility
+            FW_ENV_DEFAULT='/dev/mtd0 0x00500000 0x80000 0x100000 8'
+        fi
+    else
+        FW_ENV_DEFAULT='/dev/mtd0 0x00500000 0x80000 0x100000 8'
+    fi
+
+    echo "Using pre-configured uboot env"
+    echo $FW_ENV_DEFAULT > /etc/fw_env.config
+
+}
+
+
+main()
+{
+    fw_uboot_env_cfg
+    echo "Nokia-IXS7215: /dev/mtd0 FW_ENV_DEFAULT"
+}
+
+main $@