# # The ADI JESD204 Core is released under the following license, which is # different than all other HDL cores in this repository. # # Please read this, and understand the freedoms and responsibilities you have # by using this source code/core. # # The JESD204 HDL, is copyright © 2016-2017 Analog Devices Inc. # # This core is free software, you can use run, copy, study, change, ask # questions about and improve this core. Distribution of source, or resulting # binaries (including those inside an FPGA or ASIC) require you to release the # source of the entire project (excluding the system libraries provide by the # tools/compiler/FPGA vendor). These are the terms of the GNU General Public # License version 2 as published by the Free Software Foundation. # # This core is distributed in the hope that it will be useful, but WITHOUT ANY # WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR # A PARTICULAR PURPOSE. See the GNU General Public License for more details. # # You should have received a copy of the GNU General Public License version 2 # along with this source code, and binary. If not, see # . # # Commercial licenses (with commercial support) of this JESD204 core are also # available under terms different than the General Public License. (e.g. they # do not require you to accompany any image (FPGA or ASIC) using the JESD204 # core with any corresponding source code.) For these alternate terms you must # purchase a license from Analog Devices Technology Licensing Office. Users # interested in such a license should contact jesd204-licensing@analog.com for # more information. This commercial license is sub-licensable (if you purchase # chips from Analog Devices, incorporate them into your PCB level product, and # purchase a JESD204 license, end users of your product will also have a # license to use this core in a commercial setting without releasing their # source code). # # In addition, we kindly ask you to acknowledge ADI in any program, application # or publication in which you use this JESD204 HDL core. (You are not required # to do so; it is up to your common sense to decide whether you want to comply # with this request or not.) For general publications, we suggest referencing : # “The design and implementation of the JESD204 HDL Core used in this project # is copyright © 2016-2017, Analog Devices, Inc.” # package require qsys source ../../scripts/adi_env.tcl source ../../scripts/adi_ip_intel.tcl set version 19.1 # # Wrapper module that instantiates and connects all the components required to # for a JESD204 link. # # The following components are created: # * Transceiver for each lane # * Transceiver lane PLL (TX only) # * Transceiver reset controller # * Link PLL # * JESD204 link layer processing # * JESD204 link layer processing control interface # * axi_adxcvr link management peripheral # ad_ip_create adi_jesd204 {Analog Devices JESD204} set_module_property VALIDATION_CALLBACK jesd204_validate set_module_property COMPOSITION_CALLBACK jesd204_compose # parameters ad_ip_parameter DEVICE_FAMILY STRING "" false { VISIBLE true } ad_ip_parameter DEVICE STRING "" false { SYSTEM_INFO DEVICE VISIBLE false } ad_ip_parameter TX_OR_RX_N BOOLEAN 0 false { \ DISPLAY_HINT "radio" \ DISPLAY_NAME "Data Path" \ ALLOWED_RANGES { "0:Receive" "1:Transmit" } } ad_ip_parameter ID NATURAL 0 false { \ DISPLAY_NAME "Core ID" \ } ad_ip_parameter LANE_RATE FLOAT 10000 false { \ DISPLAY_NAME "Lane Rate" \ DISPLAY_UNITS "Mbps" \ } ad_ip_parameter SYSCLK_FREQUENCY FLOAT 100.0 false { \ DISPLAY_NAME "System Clock Frequency" \ UNITS Megahertz } ad_ip_parameter REFCLK_FREQUENCY FLOAT 500.0 false { \ DISPLAY_NAME "Reference Clock Frequency" \ UNITS Megahertz \ } ad_ip_parameter NUM_OF_LANES POSITIVE 4 false { \ DISPLAY_NAME "Number of Lanes" \ ALLOWED_RANGES 1:8 } ad_ip_parameter BONDING_CLOCKS_EN BOOLEAN 0 false { \ DISPLAY_HINT "Clock Network" \ DISPLAY_NAME "Clock Network" \ ALLOWED_RANGES { "0:x1/xN (Non-bonded)" "1:x6/xN (Bonded)" } } ad_ip_parameter LANE_MAP STRING "" false { \ DISPLAY_NAME "Lane Mapping" \ } ad_ip_parameter LANE_INVERT STD_LOGIC_VECTOR 0 false { \ DISPLAY_NAME "Lane Invert Mask" \ DISPLAY_HINT "hexadecimal" \ WIDTH 8 \ } ad_ip_parameter SOFT_PCS BOOLEAN true false { \ DISPLAY_NAME "Enable Soft PCS" \ } ad_ip_parameter INPUT_PIPELINE BOOLEAN 0 false { \ DISPLAY_NAME "Enable input pipeline" \ } ad_ip_parameter EXT_DEVICE_CLK_EN BOOLEAN 0 false { \ DISPLAY_NAME "External Device Clock Enable" \ } proc create_phy_reset_control {tx num_of_lanes sysclk_frequency} { global version set device [get_parameter_value DEVICE_FAMILY] if {[string equal $device "Arria 10"]} { add_instance phy_reset_control altera_xcvr_reset_control $version set_instance_property phy_reset_control SUPPRESS_ALL_WARNINGS true set_instance_parameter_value phy_reset_control {SYNCHRONIZE_RESET} {0} set_instance_parameter_value phy_reset_control {CHANNELS} $num_of_lanes set_instance_parameter_value phy_reset_control {SYS_CLK_IN_MHZ} $sysclk_frequency set_instance_parameter_value phy_reset_control {TX_PLL_ENABLE} $tx set_instance_parameter_value phy_reset_control {TX_ENABLE} $tx set_instance_parameter_value phy_reset_control {RX_ENABLE} [expr !$tx] add_connection sys_clock.clk phy_reset_control.clock add_connection link_reset.out_reset phy_reset_control.reset add_connection sys_clock.clk_reset phy_reset_control.reset if {$tx} { set_instance_parameter_value phy_reset_control {T_PLL_POWERDOWN} {1000} set_instance_parameter_value phy_reset_control {gui_pll_cal_busy} {1} set_instance_parameter_value phy_reset_control {T_TX_ANALOGRESET} {70000} set_instance_parameter_value phy_reset_control {T_TX_DIGITALRESET} {70000} add_connection phy_reset_control.tx_ready axi_xcvr.ready } else { set_instance_parameter_value phy_reset_control {T_RX_ANALOGRESET} {70000} set_instance_parameter_value phy_reset_control {T_RX_DIGITALRESET} {4000} add_connection phy_reset_control.rx_ready axi_xcvr.ready } } elseif {[string equal $device "Stratix 10"]} { add_instance phy_reset_control altera_xcvr_reset_control_s10 $version set_instance_parameter_value phy_reset_control {CHANNELS} $num_of_lanes set_instance_parameter_value phy_reset_control {SYS_CLK_IN_MHZ} $sysclk_frequency set_instance_parameter_value phy_reset_control {TX_ENABLE} $tx set_instance_parameter_value phy_reset_control {RX_ENABLE} [expr !$tx] set_instance_parameter_value phy_reset_control {REDUCED_SIM_TIME} {1} set_instance_parameter_value phy_reset_control {T_PLL_POWERDOWN} {1000} set_instance_parameter_value phy_reset_control {T_PLL_LOCK_HYST} {1000} add_connection sys_clock.clk phy_reset_control.clock add_connection link_reset.out_reset phy_reset_control.reset add_connection sys_clock.clk_reset phy_reset_control.reset if {$tx} { set_instance_parameter_value phy_reset_control {gui_pll_cal_busy} {1} set_instance_parameter_value phy_reset_control {TX_MANUAL_RESET} {0} set_instance_parameter_value phy_reset_control {T_TX_ANALOGRESET} {0} set_instance_parameter_value phy_reset_control {T_TX_DIGITALRESET} {20} add_connection phy_reset_control.tx_ready axi_xcvr.ready } else { set_instance_parameter_value phy_reset_control {RX_MANUAL_RESET} {0} set_instance_parameter_value phy_reset_control {T_RX_ANALOGRESET} {40} set_instance_parameter_value phy_reset_control {T_RX_DIGITALRESET} {5000} add_connection phy_reset_control.rx_ready axi_xcvr.ready } } else { send_message error "Only Arria 10 and Stratix 10 are supported." } } proc create_lane_pll {id tx_or_rx_n pllclk_frequency refclk_frequency num_lanes bonding_clocks_en} { global version set device_family [get_parameter_value "DEVICE_FAMILY"] if {$device_family == "Arria 10"} { add_instance lane_pll altera_xcvr_atx_pll_a10 $version if {$num_lanes > 6} { set_instance_parameter_value lane_pll enable_mcgb {true} if {$bonding_clocks_en} { set_instance_parameter_value lane_pll {enable_bonding_clks} {true} set_instance_parameter_value lane_pll {mcgb_div} {1} set_instance_parameter_value lane_pll {set_ref_clk_div} {1} set_instance_parameter_value lane_pll {pma_width} {40} } else { set_instance_parameter_value lane_pll enable_hfreq_clk {true} } add_instance glue adi_jesd204_glue 1.0 add_connection phy_reset_control.pll_powerdown glue.in_pll_powerdown add_connection glue.out_pll_powerdown lane_pll.pll_powerdown add_connection glue.out_mcgb_rst lane_pll.mcgb_rst } else { add_connection phy_reset_control.pll_powerdown lane_pll.pll_powerdown } set_instance_parameter_value lane_pll {enable_pll_reconfig} {1} } elseif {$device_family == "Stratix 10"} { add_instance lane_pll altera_xcvr_atx_pll_s10_htile $version set_instance_parameter_value lane_pll {rcfg_enable} {1} ## tie pll_select to GND add_instance glue adi_jesd204_glue 1.0 set_instance_parameter_value glue {IN_PLL_POWERDOWN_EN} {0} if {$tx_or_rx_n} { add_connection glue.out_pll_select_gnd phy_reset_control.pll_select } } else { send_message error "Only Arria 10 and Stratix 10 are supported." } set_instance_parameter_value lane_pll {rcfg_separate_avmm_busy} {1} set_instance_parameter_value lane_pll {set_capability_reg_enable} {1} set_instance_parameter_value lane_pll {set_user_identifier} $id set_instance_parameter_value lane_pll {set_csr_soft_logic_enable} {1} set_instance_parameter_value lane_pll {set_output_clock_frequency} $pllclk_frequency set_instance_parameter_value lane_pll {set_auto_reference_clock_frequency} $refclk_frequency add_connection lane_pll.pll_locked phy_reset_control.pll_locked add_connection lane_pll.pll_cal_busy phy_reset_control.pll_cal_busy add_connection ref_clock.out_clk lane_pll.pll_refclk0 add_connection sys_clock.clk lane_pll.reconfig_clk0 add_connection sys_clock.clk_reset lane_pll.reconfig_reset0 add_interface lane_pll_reconfig avalon slave set_interface_property lane_pll_reconfig EXPORT_OF lane_pll.reconfig_avmm0 } proc jesd204_get_max_lane_rate {device soft_pcs} { if {[string range $device 0 2] == "10A"} { set device_speedgrade [string range $device 13 13] set pma_speedgrade [string range $device 8 8] } elseif {[string range $device 0 1] == "1S"} { set device_speedgrade [string range $device 13 13] set pma_speedgrade [string range $device 8 8] } else { # Assume fastest speed grade set device_speedgrade 1 set pma_speedgrade 1 } if {$soft_pcs} { if {$pma_speedgrade == 1 || $pma_speedgrade == 2} { return "15000" } elseif {$pma_speedgrade == 3} { return "14200" } else { return "12500" } } else { if {$device_speedgrade == 1} { return "12000" } elseif {$device_speedgrade == 2} { return "9830" } else { return "8936" } } } proc jesd204_validate {{quiet false}} { set soft_pcs [get_parameter_value "SOFT_PCS"] set input_pipeline [get_parameter_value "INPUT_PIPELINE"] set device_family [get_parameter_value "DEVICE_FAMILY"] set device [get_parameter_value "DEVICE"] set lane_rate [get_parameter_value "LANE_RATE"] set num_of_lanes [get_parameter_value "NUM_OF_LANES"] set tx_or_rx_n [get_parameter_value "TX_OR_RX_N"] if {$device_family != "Arria 10" && $device_family != "Stratix 10"} { if {!$quiet} { send_message error "Only Arria 10 and Startix 10 are supported." } return false } set max_lane_rate [jesd204_get_max_lane_rate $device $soft_pcs] if {$lane_rate < 2000 || $lane_rate > $max_lane_rate} { if {!$quiet} { send_message error "Lane rate must be in the range 2000-${max_lane_rate} Mbps." if {!$soft_pcs} { send_message error "Consider enabling soft PCS for a higher maximum lane rate." if {$input_pipeline} { send_message error "Input pipeline can be active just when soft PCS is used." } } } return false } set_parameter_property BONDING_CLOCKS_EN VISIBLE [expr ($num_of_lanes > 6) && ($tx_or_rx_n)] return true } proc jesd204_compose {} { global version set id [get_parameter_value "ID"] set lane_rate [get_parameter_value "LANE_RATE"] set tx_or_rx_n [get_parameter_value "TX_OR_RX_N"] set num_of_lanes [get_parameter_value "NUM_OF_LANES"] set sysclk_frequency [get_parameter_value "SYSCLK_FREQUENCY"] set refclk_frequency [get_parameter_value "REFCLK_FREQUENCY"] set lane_map [get_parameter_value "LANE_MAP"] set lane_invert [get_parameter_value "LANE_INVERT"] set soft_pcs [get_parameter_value "SOFT_PCS"] set device_family [get_parameter_value "DEVICE_FAMILY"] set device [get_parameter_value "DEVICE"] set ext_device_clk_en [get_parameter_value "EXT_DEVICE_CLK_EN"] set bonding_clocks_en [get_parameter_value "BONDING_CLOCKS_EN"] set input_pipeline [get_parameter_value "INPUT_PIPELINE"] set pllclk_frequency [expr $lane_rate / 2] set linkclk_frequency [expr $lane_rate / 40] if {![jesd204_validate true]} { return } add_instance sys_clock clock_source 19.2 set_instance_parameter_value sys_clock {clockFrequency} [expr $sysclk_frequency*1000000] set_instance_parameter_value sys_clock {resetSynchronousEdges} {deassert} add_interface sys_clk clock sink set_interface_property sys_clk EXPORT_OF sys_clock.clk_in add_interface sys_resetn reset sink set_interface_property sys_resetn EXPORT_OF sys_clock.clk_in_reset add_instance ref_clock altera_clock_bridge $version set_instance_parameter_value ref_clock {EXPLICIT_CLOCK_RATE} [expr $refclk_frequency*1000000] add_interface ref_clk clock sink set_interface_property ref_clk EXPORT_OF ref_clock.in_clk set outclk_name "" ## link clock configuration (also known as device clock, which will be used ## by the upper layers for the data path, it can come from the PCS or external) add_instance link_clock altera_clock_bridge $version set_instance_parameter_value link_clock {EXPLICIT_CLOCK_RATE} [expr $linkclk_frequency*1000000] set_instance_parameter_value link_clock {NUM_CLOCK_OUTPUTS} 2 add_instance link_reset altera_reset_bridge $version set_instance_parameter_value link_reset {NUM_RESET_OUTPUTS} 2 if {$device_family == "Arria 10"} { add_instance link_pll altera_xcvr_fpll_a10 $version set_instance_parameter_value link_pll {gui_fpll_mode} {0} set_instance_parameter_value link_pll {gui_reference_clock_frequency} $refclk_frequency set_instance_parameter_value link_pll {gui_number_of_output_clocks} 1 set_instance_parameter_value link_pll {gui_desired_outclk0_frequency} $linkclk_frequency set_instance_parameter_value link_pll {enable_pll_reconfig} {1} set outclk_name "outclk0" add_instance link_pll_reset_control altera_xcvr_reset_control $version set_instance_parameter_value link_pll_reset_control {SYNCHRONIZE_RESET} {0} set_instance_parameter_value link_pll_reset_control {SYS_CLK_IN_MHZ} $sysclk_frequency set_instance_parameter_value link_pll_reset_control {TX_PLL_ENABLE} {1} set_instance_parameter_value link_pll_reset_control {T_PLL_POWERDOWN} {1000} set_instance_parameter_value link_pll_reset_control {TX_ENABLE} {0} set_instance_parameter_value link_pll_reset_control {RX_ENABLE} {0} add_connection sys_clock.clk link_pll_reset_control.clock add_connection link_reset.out_reset link_pll_reset_control.reset add_connection sys_clock.clk_reset link_pll_reset_control.reset add_connection link_pll_reset_control.pll_powerdown link_pll.pll_powerdown } elseif {$device_family == "Stratix 10"} { send_message info "Instantiate a fpll_s10_htile for link_pll." add_instance link_pll altera_xcvr_fpll_s10_htile 19.1.1 ## Primary Use is Core mode set_instance_parameter_value link_pll {set_primary_use} 0 ## Basic Mode set_instance_parameter_value link_pll {set_prot_mode} 0 set_instance_parameter_value link_pll {message_level} {error} set_instance_parameter_value link_pll {set_refclk_cnt} {1} set_instance_parameter_value link_pll {set_auto_reference_clock_frequency} $refclk_frequency set_instance_parameter_value link_pll {set_output_clock_frequency} $linkclk_frequency set_instance_parameter_value link_pll {set_bw_sel} {medium} set_instance_parameter_value link_pll {rcfg_enable} {1} set_instance_parameter_value link_pll {set_csr_soft_logic_enable} {1} set_instance_parameter_value link_pll {set_capability_reg_enable} {1} set outclk_name "outclk_div1" } else { ## Unsupported device send_message error "Only Arria 10 and Stratix 10 are supported." } add_connection link_pll.$outclk_name link_clock.in_clk add_interface link_clk clock source add_connection sys_clock.clk link_reset.clk add_interface link_reset reset source set_interface_property link_reset EXPORT_OF link_reset.out_reset_1 set_instance_parameter_value link_pll {set_capability_reg_enable} {1} set_instance_parameter_value link_pll {set_csr_soft_logic_enable} {1} set_instance_parameter_value link_pll {rcfg_separate_avmm_busy} {1} add_connection ref_clock.out_clk link_pll.pll_refclk0 add_connection sys_clock.clk_reset link_pll.reconfig_reset0 add_connection sys_clock.clk link_pll.reconfig_clk0 add_instance axi_xcvr axi_adxcvr 1.0 set_instance_parameter_value axi_xcvr {ID} $id set_instance_parameter_value axi_xcvr {TX_OR_RX_N} $tx_or_rx_n set_instance_parameter_value axi_xcvr {NUM_OF_LANES} $num_of_lanes add_connection sys_clock.clk axi_xcvr.s_axi_clock add_connection sys_clock.clk_reset axi_xcvr.s_axi_reset add_connection axi_xcvr.if_up_rst link_reset.in_reset add_connection link_pll.pll_locked axi_xcvr.core_pll_locked add_interface link_management axi4lite slave set_interface_property link_management EXPORT_OF axi_xcvr.s_axi add_interface link_pll_reconfig avalon slave set_interface_property link_pll_reconfig EXPORT_OF link_pll.reconfig_avmm0 set_interface_property link_pll_reconfig associatedClock sys_clk set_interface_property link_pll_reconfig associatedReset sys_resetn create_phy_reset_control $tx_or_rx_n $num_of_lanes $sysclk_frequency add_instance phy jesd204_phy 1.0 set_instance_parameter_value phy ID $id set_instance_parameter_value phy DEVICE $device_family set_instance_parameter_value phy SOFT_PCS $soft_pcs set_instance_parameter_value phy TX_OR_RX_N $tx_or_rx_n set_instance_parameter_value phy LANE_RATE $lane_rate set_instance_parameter_value phy REFCLK_FREQUENCY $refclk_frequency set_instance_parameter_value phy NUM_OF_LANES $num_of_lanes set_instance_parameter_value phy REGISTER_INPUTS $input_pipeline set_instance_parameter_value phy LANE_INVERT $lane_invert set_instance_parameter_value phy EXT_DEVICE_CLK_EN $ext_device_clk_en set_instance_parameter_value phy BONDING_CLOCKS_EN $bonding_clocks_en add_connection link_clock.out_clk_1 phy.link_clk add_connection link_reset.out_reset phy.link_reset add_connection sys_clock.clk phy.reconfig_clk add_connection sys_clock.clk_reset phy.reconfig_reset ## connect the required device clock if {$ext_device_clk_en} { add_instance ext_device_clock altera_clock_bridge $version set_instance_parameter_value ext_device_clock {EXPLICIT_CLOCK_RATE} [expr $linkclk_frequency*1000000] set_instance_parameter_value ext_device_clock {NUM_CLOCK_OUTPUTS} 2 add_interface device_clk clock sink set_interface_property device_clk EXPORT_OF ext_device_clock.in_clk add_connection ext_device_clock.out_clk phy.device_clk set_interface_property link_clk EXPORT_OF ext_device_clock.out_clk_1 } else { set_interface_property link_clk EXPORT_OF link_clock.out_clk } set phy_reset_intfs_s10 {analogreset_stat digitalreset_stat} if {$tx_or_rx_n} { set tx_rx "tx" set data_direction sink set jesd204_intfs {config control ilas_config event status} set phy_reset_intfs {analogreset digitalreset cal_busy} create_lane_pll $id $tx_or_rx_n $pllclk_frequency $refclk_frequency $num_of_lanes $bonding_clocks_en if {$num_of_lanes > 6} { if {$bonding_clocks_en} { add_connection lane_pll.tx_bonding_clocks phy.bonding_clocks } else { add_connection lane_pll.tx_serial_clk phy.serial_clk_x1 add_connection lane_pll.mcgb_serial_clk phy.serial_clk_xN } } else { add_connection lane_pll.tx_serial_clk phy.serial_clk_x1 } } else { set tx_rx "rx" set data_direction source set jesd204_intfs {config ilas_config event status} set phy_reset_intfs {analogreset digitalreset cal_busy is_lockedtodata} add_connection ref_clock.out_clk phy.ref_clk } add_instance axi_jesd204_${tx_rx} axi_jesd204_${tx_rx} 1.0 set_instance_parameter_value axi_jesd204_${tx_rx} {NUM_LANES} $num_of_lanes add_connection sys_clock.clk axi_jesd204_${tx_rx}.s_axi_clock add_connection sys_clock.clk_reset axi_jesd204_${tx_rx}.s_axi_reset add_instance jesd204_${tx_rx} jesd204_${tx_rx} 1.0 set_instance_parameter_value jesd204_${tx_rx} {NUM_LANES} $num_of_lanes if {$ext_device_clk_en} { add_connection ext_device_clock.out_clk axi_jesd204_${tx_rx}.core_clock add_connection ext_device_clock.out_clk jesd204_${tx_rx}.clock } else { add_connection link_clock.out_clk_1 axi_jesd204_${tx_rx}.core_clock add_connection link_clock.out_clk_1 jesd204_${tx_rx}.clock } add_connection link_reset.out_reset axi_jesd204_${tx_rx}.core_reset_ext add_connection axi_jesd204_${tx_rx}.core_reset jesd204_${tx_rx}.reset foreach intf $jesd204_intfs { add_connection axi_jesd204_${tx_rx}.${intf} jesd204_${tx_rx}.${intf} } foreach intf $phy_reset_intfs { add_connection phy_reset_control.${tx_rx}_${intf} phy.${intf} } ## connect phy_reset_control interfaces specific to Stratix 10 if {$device_family == "Stratix 10"} { foreach intf $phy_reset_intfs_s10 { add_connection phy_reset_control.${tx_rx}_${intf} phy.${intf} } } set lane_map [regexp -all -inline {\S+} $lane_map] for {set i 0} {$i < $num_of_lanes} {incr i} { if {$lane_map != {}} { set j [lindex $lane_map $i] } else { set j $i } add_connection jesd204_${tx_rx}.${tx_rx}_phy${j} phy.phy_${i} } for {set i 0} {$i < $num_of_lanes} {incr i} { add_interface phy_reconfig_${i} avalon slave set_interface_property phy_reconfig_${i} EXPORT_OF phy.reconfig_avmm_${i} } add_interface interrupt interrupt end set_interface_property interrupt EXPORT_OF axi_jesd204_${tx_rx}.interrupt add_interface link_reconfig axi4lite slave set_interface_property link_reconfig EXPORT_OF axi_jesd204_${tx_rx}.s_axi add_interface link_data avalon_streaming $data_direction set_interface_property link_data EXPORT_OF jesd204_${tx_rx}.${tx_rx}_data if {!$tx_or_rx_n} { add_interface link_sof conduit end set_interface_property link_sof EXPORT_OF jesd204_rx.rx_sof } add_interface sysref conduit end set_interface_property sysref EXPORT_OF jesd204_${tx_rx}.sysref add_interface sync conduit end set_interface_property sync EXPORT_OF jesd204_${tx_rx}.sync add_interface serial_data conduit end set_interface_property serial_data EXPORT_OF phy.serial_data }