mirror of
https://github.com/corundum/corundum.git
synced 2025-01-16 08:12:53 +08:00
50 lines
2.6 KiB
Tcl
50 lines
2.6 KiB
Tcl
# Copyright (c) 2019 Alex Forencich
|
|
#
|
|
# Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
# of this software and associated documentation files (the "Software"), to deal
|
|
# in the Software without restriction, including without limitation the rights
|
|
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
# copies of the Software, and to permit persons to whom the Software is
|
|
# furnished to do so, subject to the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be included in
|
|
# all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY
|
|
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
# THE SOFTWARE.
|
|
|
|
# Ethernet MAC with FIFO timing constraints
|
|
|
|
foreach mac_inst [get_cells -hier -filter {(ORIG_REF_NAME == eth_mac_1g_fifo || REF_NAME == eth_mac_1g_fifo || \
|
|
ORIG_REF_NAME == eth_mac_10g_fifo || REF_NAME == eth_mac_10g_fifo || \
|
|
ORIG_REF_NAME == eth_mac_1g_gmii_fifo || REF_NAME == eth_mac_1g_gmii_fifo || \
|
|
ORIG_REF_NAME == eth_mac_1g_rgmii_fifo || REF_NAME == eth_mac_1g_rgmii_fifo || \
|
|
ORIG_REF_NAME == eth_mac_mii_fifo || REF_NAME == eth_mac_mii_fifo)}] {
|
|
puts "Inserting timing constraints for ethernet MAC with FIFO instance $mac_inst"
|
|
|
|
set sync_ffs [get_cells -hier -regexp ".*/rx_sync_reg_\[1234\]_reg\\\[\\d+\\\]" -filter "PARENT == $mac_inst"]
|
|
|
|
if {[llength $sync_ffs]} {
|
|
set_property ASYNC_REG TRUE $sync_ffs
|
|
|
|
set src_clk [get_clocks -of_objects [get_pins $mac_inst/rx_sync_reg_1_reg[*]/C]]
|
|
|
|
set_max_delay -from [get_cells $mac_inst/rx_sync_reg_1_reg[*]] -to [get_cells $mac_inst/rx_sync_reg_2_reg[*]] -datapath_only [get_property -min PERIOD $src_clk]
|
|
}
|
|
|
|
set sync_ffs [get_cells -hier -regexp ".*/tx_sync_reg_\[1234\]_reg\\\[\\d+\\\]" -filter "PARENT == $mac_inst"]
|
|
|
|
if {[llength $sync_ffs]} {
|
|
set_property ASYNC_REG TRUE $sync_ffs
|
|
|
|
set src_clk [get_clocks -of_objects [get_pins $mac_inst/tx_sync_reg_1_reg[*]/C]]
|
|
|
|
set_max_delay -from [get_cells $mac_inst/tx_sync_reg_1_reg[*]] -to [get_cells $mac_inst/tx_sync_reg_2_reg[*]] -datapath_only [get_property -min PERIOD $src_clk]
|
|
}
|
|
}
|