pluto_hdl_adi/library/jesd204/jesd204_rx/bd/bd.tcl

45 lines
1.2 KiB
Tcl

proc init {cellpath otherInfo} {
set ip [get_bd_cells $cellpath]
bd::mark_propagate_override $ip \
"ASYNC_CLK"
}
proc detect_async_clk { cellpath ip param_name clk_a clk_b } {
set param_src [get_property "CONFIG.$param_name.VALUE_SRC" $ip]
if {[string equal $param_src "USER"]} {
return;
}
set clk_domain_a [get_property CONFIG.CLK_DOMAIN $clk_a]
set clk_domain_b [get_property CONFIG.CLK_DOMAIN $clk_b]
set clk_freq_a [get_property CONFIG.FREQ_HZ $clk_a]
set clk_freq_b [get_property CONFIG.FREQ_HZ $clk_b]
set clk_phase_a [get_property CONFIG.PHASE $clk_a]
set clk_phase_b [get_property CONFIG.PHASE $clk_b]
# Only mark it as sync if we can make sure that it is sync, if the
# relationship of the clocks is unknown mark it as async
if {$clk_domain_a != {} && $clk_domain_b != {} && \
$clk_domain_a == $clk_domain_b && $clk_freq_a == $clk_freq_b && \
$clk_phase_a == $clk_phase_b} {
set clk_async 0
} else {
set clk_async 1
}
set_property "CONFIG.$param_name" $clk_async $ip
}
proc propagate {cellpath otherinfo} {
set ip [get_bd_cells $cellpath]
set link_clk [get_bd_pins "$ip/clk"]
set device_clk [get_bd_pins "$ip/device_clk"]
detect_async_clk $cellpath $ip "ASYNC_CLK" $link_clk $device_clk
}