From e2ae325d5c60529d4f53b45ff10c8decb3c2440c Mon Sep 17 00:00:00 2001
From: Joel Stanley <joel@jms.id.au>
Date: Thu, 25 Aug 2022 19:50:47 +1000
Subject: [PATCH] antmicro-artix-dc-scm: Add Ethernet pins

Signed-off-by: Joel Stanley <joel@jms.id.au>
---
 fpga/antmicro_artix_dc_scm.xdc | 95 ++++++++++++++++++++++++++++++++++
 1 file changed, 95 insertions(+)

diff --git a/fpga/antmicro_artix_dc_scm.xdc b/fpga/antmicro_artix_dc_scm.xdc
index 7e31995..969a7d2 100644
--- a/fpga/antmicro_artix_dc_scm.xdc
+++ b/fpga/antmicro_artix_dc_scm.xdc
@@ -295,6 +295,76 @@ set_property LOC G1 [get_ports {ddram_reset_n}]
 set_property SLEW FAST [get_ports {ddram_reset_n}]
 set_property IOSTANDARD SSTL135 [get_ports {ddram_reset_n}]
 
+################################################################################
+# Ethernet (generated by LiteX)
+################################################################################
+
+# eth_clocks:0.tx
+set_property LOC J19 [get_ports {eth_clocks_tx}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_clocks_tx}]
+
+# eth_clocks:0.rx
+set_property LOC K19 [get_ports {eth_clocks_rx}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_clocks_rx}]
+
+# eth:0.rst_n
+set_property LOC N18 [get_ports {eth_rst_n}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_rst_n}]
+
+# eth:0.int_n
+set_property LOC N20 [get_ports {eth_int_n}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_int_n}]
+
+# eth:0.mdio
+set_property LOC M21 [get_ports {eth_mdio}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_mdio}]
+
+# eth:0.mdc
+set_property LOC N22 [get_ports {eth_mdc}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_mdc}]
+
+# eth:0.rx_ctl
+set_property LOC M22 [get_ports {eth_rx_ctl}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_rx_ctl}]
+
+# eth:0.rx_data
+set_property LOC L20 [get_ports {eth_rx_data[0]}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_rx_data[0]}]
+
+# eth:0.rx_data
+set_property LOC L21 [get_ports {eth_rx_data[1]}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_rx_data[1]}]
+
+# eth:0.rx_data
+set_property LOC K21 [get_ports {eth_rx_data[2]}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_rx_data[2]}]
+
+# eth:0.rx_data
+set_property LOC K22 [get_ports {eth_rx_data[3]}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_rx_data[3]}]
+
+# eth:0.tx_ctl
+set_property LOC J22 [get_ports {eth_tx_ctl}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_tx_ctl}]
+
+# eth:0.tx_data
+set_property LOC G20 [get_ports {eth_tx_data[0]}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_tx_data[0]}]
+
+# eth:0.tx_data
+set_property LOC H20 [get_ports {eth_tx_data[1]}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_tx_data[1]}]
+
+# eth:0.tx_data
+set_property LOC H22 [get_ports {eth_tx_data[2]}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_tx_data[2]}]
+
+# eth:0.tx_data
+set_property LOC J21 [get_ports {eth_tx_data[3]}]
+set_property IOSTANDARD LVCMOS33 [get_ports {eth_tx_data[3]}]
+
+
+
 ################################################################################
 # Design constraints and bitsteam attributes
 ################################################################################
@@ -310,8 +380,33 @@ set_property BITSTREAM.GENERAL.COMPRESS TRUE [current_design]
 set_property BITSTREAM.CONFIG.CONFIGRATE 33 [current_design]
 set_property CONFIG_MODE SPIx4 [current_design]
 
+#set_property CLOCK_DEDICATED_ROUTE FALSE [get_nets main_ethphy_eth_rx_clk_ibuf]
+set_property CLOCK_DEDICATED_ROUTE FALSE [get_nets {has_liteeth.liteeth/main_maccore_ethphy_eth_rx_clk_ibuf}]
+
 ################################################################################
 # Clock constraints
 ################################################################################
 
 create_clock -name sys_clk_pin -period 10.00 [get_ports { ext_clk }];
+
+create_clock -name eth_clocks_rx -period 8.0 [get_ports { eth_clocks_rx }]
+
+create_clock -name eth_clocks_tx -period 8.0 [get_ports { eth_clocks_tx }]
+
+
+set_clock_groups -asynchronous -group [get_clocks sys_clk_pin -include_generated_clocks] -group [get_clocks eth_clocks_rx -include_generated_clocks]
+
+set_clock_groups -asynchronous -group [get_clocks sys_clk_pin -include_generated_clocks] -group [get_clocks eth_clocks_tx -include_generated_clocks]
+
+
+
+################################################################################
+# False path constraints (from LiteX as they relate to LiteDRAM and LiteEth)
+################################################################################
+
+
+set_false_path -quiet -through [get_nets -hierarchical -filter {mr_ff == TRUE}]
+
+set_false_path -quiet -to [get_pins -filter {REF_PIN_NAME == PRE} -of_objects [get_cells -hierarchical -filter {ars_ff1 == TRUE || ars_ff2 == TRUE}]]
+
+set_max_delay 2 -quiet -from [get_pins -filter {REF_PIN_NAME == C} -of_objects [get_cells -hierarchical -filter {ars_ff1 == TRUE}]] -to [get_pins -filter {REF_PIN_NAME == D} -of_objects [get_cells -hierarchical -filter {ars_ff2 == TRUE}]]