diff options
Diffstat (limited to 'scripts/fixup-dts')
| -rwxr-xr-x | scripts/fixup-dts | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/scripts/fixup-dts b/scripts/fixup-dts new file mode 100755 index 0000000..31ce04f --- /dev/null +++ b/scripts/fixup-dts @@ -0,0 +1,138 @@ +#!/bin/bash + +set -e +set -o pipefail + +unset dts + +while [ "$1" != "" ] +do + case "$1" + in + --dts) dts="$2"; shift 2;; + *) echo "$0: Unknown argument $1"; exit 1;; + esac +done + +if [ "${dts}" == "" ] +then + echo "$0: please provide '--dts' option" >&2 + exit 1 +fi + +# Add a PMP node if it doesn't exist + +if [ `grep -c 'riscv,pmp' ${dts}` -eq 0 ] +then + echo "$0: PMP node not found in ${dts}." + + sed -i 's/ranges;/ranges;\n\t\tpmp: pmp@0 {\n\t\t\tcompatible = "riscv,pmp";\n\t\t\tregions = <1>;\n\t\t};/' ${dts} + + echo -e "$0: \tAdded pmp@0" +fi + +# Add compat string for the global-interrupt node if it doesn't exist + +if [ `grep -c 'global-external-interrupts {' ${dts}` -ne 0 ]; then + if [ `grep -c 'sifive,global-external-interrupts0' ${dts}` -eq 0 ]; then + echo "$0: Global external interrupts missing compat string in ${dts}." + + sed -i 's/global-external-interrupts {/global-external-interrupts {\n\t\t\tcompatible = "sifive,global-external-interrupts0";/g' ${dts} + + echo -e "$0: \tAdded compat string to global-external-interrupts." + fi +fi + +# Add compat string for the local-interrupt node if it doesn't exist + +if [ `grep -c 'local-external-interrupts-0 {' ${dts}` -ne 0 ]; then + if [ `grep -c 'sifive,local-external-interrupts0' ${dts}` -eq 0 ]; then + echo "$0: Local external interrupts missing compat string in ${dts}." + + sed -i 's/local-external-interrupts-0 {/local-external-interrupts {\n\t\t\tcompatible = "sifive,local-external-interrupts0";/g' ${dts} + + echo -e "$0: \tAdded compat string to local-external-interrupts-0." + fi +fi + +# Add a test memory node if one doesn't exist + +if [ `grep -c 'sifive,testram0' ${dts}` -eq 0 ]; then + + # bullet cores have a memory defined already + if [ `grep -c 'sifive,bullet0' ${dts}` -eq 0 ]; then + + echo "$0: Test memory node not found in ${dts}." + + # The heuristic for determining which memory address contains the + # program code loaded by the RTL testbench is determined by taking + # the design ports and sorting them in order of (periph, sys, mem), + # and then lexicographically by protocol. + + port_types="periph sys mem" + protocols="ahb axi4 tl" + + for port_type in ${port_types}; do + for protocol in ${protocols}; do + + # Check if the port exists + if [ `grep -c "${protocol}-${port_type}-port" ${dts}` -ne 0 ]; then + + # Build the node name + port_node_name=`egrep -o "${protocol}-${port_type}-port@[a-fA-F0-9]+" ${dts}` + echo -e "$0: \tUsing node \t${port_node_name}" + + # Get the address and size cells + address_cells=`cat ${dts} | tr -d '\n\t' | grep -oP "${port_node_name}.*?address-cells = <\K(\d+)"` + echo -e "$0: \tAddress cells \t${address_cells}" + size_cells=`cat ${dts} | tr -d '\n\t' | grep -oP "${port_node_name}.*?size-cells = <\K(\d+)"` + echo -e "$0: \tSize cells \t${size_cells}" + + # Get the base address and size + if [ ${address_cells} -eq 1 -a ${size_cells} -eq 1 ]; then + address_and_size=(`cat ${dts} | tr -d '\n\t' | grep -oP "${port_node_name}.*?ranges = <0x\d+ \K(0x\d+ 0x\d+)"`) + base_address=${address_and_size[0]} + size=${address_and_size[1]} + elif [ ${address_cells} -eq 1 -a ${size_cells} -eq 2 ]; then + address_and_size=(`cat ${dts} | tr -d '\n\t' | grep -oP "${port_node_name}.*?ranges = <0x\d+ \K(0x\d+ 0x\d+ 0x\d+)"`) + base_address=${address_and_size[0]} + size="${address_and_size[1]} ${address_and_size[2]}" + elif [ ${address_cells} -eq 2 -a ${size_cells} -eq 1 ]; then + address_and_size=(`cat ${dts} | tr -d '\n\t' | grep -oP "${port_node_name}.*?ranges = <0x\d+ 0x\d+ \K(0x\d+ 0x\d+ 0x\d+)"`) + base_address="${address_and_size[0]} ${address_and_size[1]}" + size=${address_and_size[2]} + elif [ ${address_cells} -eq 2 -a ${size_cells} -eq 2 ]; then + address_and_size=(`cat ${dts} | tr -d '\n\t' | grep -oP "${port_node_name}.*?ranges = <0x\d+ 0x\d+ \K(0x\d+ 0x\d+ 0x\d+ 0x\d+)"`) + base_address="${address_and_size[0]} ${address_and_size[1]}" + size="${address_and_size[2]} ${address_and_size[3]}" + fi + echo -e "$0: \tBase addr \t${base_address}" + echo -e "$0: \tSize \t\t${size}" + + # Build the name of the testram node + if [ "${address_and_size[0]}" == "0x0" ]; then + node_name_addr=`echo ${address_and_size[1]} | cut -c 3-` + else + node_name_addr=`echo ${address_and_size[0]} | cut -c 3-` + fi + + # Determine word size from ISA bitness + if [ `grep -c 'riscv,isa = "rv32' ${dts}` -ne 0 ]; then + word_size=4 + else + word_size=8 + fi + echo -e "$0: \tWord size \t${word_size}" + + # Create the test memory + sed -i "s/ranges;/ranges;\n\t\ttest_memory: testram@${node_name_addr} {\n\t\t\tcompatible = \"sifive,testram0\";\n\t\t\treg = <${base_address} ${size}>;\n\t\t\treg-names = \"mem\";\n\t\t\tword-size-bytes = <${word_size}>;\n\t\t};/" ${dts} + echo -e "$0: \tAdded testram@${node_name_addr}" + + # Break out of both loops + break 2 + fi + done + done + fi +fi + |