# SPDX-FileCopyrightText:  2021 , Dinesh Annayya
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# SPDX-License-Identifier: Apache-2.0
# SPDX-FileContributor: Modified by Dinesh Annayya <dinesha@opencores.org>

# Global
# ------

set script_dir [file dirname [file normalize [info script]]]
# Name
set ::env(DESIGN_NAME) wb_interconnect


set ::env(DESIGN_IS_CORE) "0"
set ::env(FP_PDN_CORE_RING) "0"

# Timing configuration
set ::env(CLOCK_PERIOD) "10"
set ::env(CLOCK_PORT) "clk_i"

set ::env(SYNTH_MAX_FANOUT) 4

## CTS BUFFER
set ::env(CTS_CLK_BUFFER_LIST) "sky130_fd_sc_hd__clkbuf_4 sky130_fd_sc_hd__clkbuf_8"
set ::env(CTS_SINK_CLUSTERING_SIZE) "16"
set ::env(CLOCK_BUFFER_FANOUT) "8"

# Sources
# -------

# Local sources + no2usb sources
set ::env(VERILOG_FILES) "\
        $script_dir/../../verilog/rtl/clk_skew_adjust/src/clk_skew_adjust.gv \
        $script_dir/../../verilog/rtl/lib/sync_wbb.sv                \
        $script_dir/../../verilog/rtl/lib/sync_fifo2.sv                \
        $script_dir/../../verilog/rtl/wb_interconnect/src/wb_arb.sv     \
        $script_dir/../../verilog/rtl/wb_interconnect/src/wb_interconnect.sv  \
	"

set ::env(SYNTH_DEFINES) [list SYNTHESIS ]

set ::env(SYNTH_PARAMS) "CH_CLK_WD 8,\
	                 CH_DATA_WD 116 \
			 "

set ::env(SYNTH_READ_BLACKBOX_LIB) 1
set ::env(SDC_FILE) "$script_dir/base.sdc"
set ::env(BASE_SDC_FILE) "$script_dir/base.sdc"

set ::env(LEC_ENABLE) 0

set ::env(VDD_PIN) [list {vccd1}]
set ::env(GND_PIN) [list {vssd1}]


# Floorplanning
# -------------

set ::env(FP_PIN_ORDER_CFG) $::env(DESIGN_DIR)/pin_order.cfg

set ::env(FP_SIZING) absolute
set ::env(DIE_AREA) "0 0 200 2300"


# If you're going to use multiple power domains, then keep this disabled.
set ::env(RUN_CVC) 0

#set ::env(PDN_CFG) $script_dir/pdn.tcl


set ::env(PL_TIME_DRIVEN) 1
set ::env(PL_TARGET_DENSITY) "0.30"

# helps in anteena fix
set ::env(USE_ARC_ANTENNA_CHECK) "0"


set ::env(GLB_RT_MAX_DIODE_INS_ITERS) 10
set ::env(DIODE_INSERTION_STRATEGY) 4

## CTS
set ::env(CTS_CLK_BUFFER_LIST) "sky130_fd_sc_hd__clkbuf_4 sky130_fd_sc_hd__clkbuf_8 sky130_fd_sc_hd__clkbuf_16"
set ::env(CTS_SINK_CLUSTERING_MAX_DIAMETER) 50
set ::env(CTS_SINK_CLUSTERING_SIZE) 20

## Placement
set ::env(PL_RESIZER_DESIGN_OPTIMIZATIONS) 1
set ::env(PL_RESIZER_TIMING_OPTIMIZATIONS) 0

set ::env(PL_RESIZER_MAX_SLEW_MARGIN) 2
set ::env(PL_RESIZER_MAX_CAP_MARGIN) 2

## Routing
set ::env(GLB_RT_ADJUSTMENT) 0
set ::env(GLB_RT_L2_ADJUSTMENT) 0.21
set ::env(GLB_RT_L3_ADJUSTMENT) 0.21
set ::env(GLB_RT_L4_ADJUSTMENT) 0.1
set ::env(GLB_RT_L5_ADJUSTMENT) 0.1
set ::env(GLB_RT_L6_ADJUSTMENT) 0.1
set ::env(GLB_RT_ALLOW_CONGESTION) 0
set ::env(GLB_RT_OVERFLOW_ITERS) 200

set ::env(GLB_RT_MINLAYER) 2
set ::env(GLB_RT_MAXLAYER) 6


set ::env(QUIT_ON_TIMING_VIOLATIONS) "0"
set ::env(QUIT_ON_MAGIC_DRC) "1"
set ::env(QUIT_ON_LVS_ERROR) "0"
set ::env(QUIT_ON_SLEW_VIOLATIONS) "0"

set ::env(GLB_RESIZER_TIMING_OPTIMIZATIONS) "0"
set ::env(PL_RESIZER_BUFFER_INPUT_PORTS) "0"
set ::env(PL_RESIZER_BUFFER_OUTPUT_PORTS) "1"
set ::env(PL_RESIZER_MAX_WIRE_LENGTH) "2000"
set ::env(PL_RESIZER_MAX_SLEW_MARGIN) "2.0"
set ::env(PL_RESIZER_MAX_CAP_MARGIN) "5"

## FANOUT Reduced to take care of long routes
set ::env(SYNTH_MAX_FANOUT) "2"