#!/bin/bash
# Copyright lowRISC contributors.
# Licensed under the Apache License, Version 2.0, see LICENSE for details.
# SPDX-License-Identifier: Apache-2.0


# Utility script to load MEM contents into BRAM FPGA bitfile
# Usage:
#   cd $REPO_TOP
#   ./util/fpga/splice_nexysvideo.sh

# Updated bitfile located : at the same place as raw vivado bitfile @
# $REPO_TOP/build/lowrisc_systems_top_earlgrey_nexysvideo_0.1/synth-vivado/
#  lowrisc_systems_top_earlgrey_nexysvideo_0.1.splice.bit
set -e

. util/build_consts.sh

BUILD_DIR="$(sw_obj_dir fpga)"
TARGET_PREFIX="/sw/device/boot_rom/boot_rom"
FPGA_BUILD_DIR=build/lowrisc_systems_top_earlgrey_nexysvideo_0.1/synth-vivado/
FPGA_BIT_NAME=lowrisc_systems_top_earlgrey_nexysvideo_0.1

./meson_init.sh -f
ninja -C "$BUILD_DIR" sw/device/boot_rom/boot_rom.bin

srec_cat ${TARGET_PREFIX}.bin -binary -offset 0x0 -o ${TARGET_PREFIX}.brammem \
  -vmem -Output_Block_Size 4;

util/fpga/addr4x.py -i ${TARGET_PREFIX}.brammem -o ${TARGET_PREFIX}.mem

updatemem -force --meminfo util/fpga/bram_load.mmi \
  --data ${TARGET_PREFIX}.mem \
  --bit "${FPGA_BUILD_DIR}/${FPGA_BIT_NAME}.bit"  --proc dummy \
  --out "${FPGA_BUILD_DIR}/${FPGA_BIT_NAME}.splice.bit"

mv ${FPGA_BUILD_DIR}/${FPGA_BIT_NAME}.bit ${FPGA_BUILD_DIR}/${FPGA_BIT_NAME}.bit.orig
mv ${FPGA_BUILD_DIR}/${FPGA_BIT_NAME}.splice.bit ${FPGA_BUILD_DIR}/${FPGA_BIT_NAME}.bit