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|
#!/bin/bash
set -e
set -o pipefail
unset dts
unset SED
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
# When installed on MacOS with Homebrew, GNU sed is named gsed.
# If gsed exists, use it.
if [ "`which gsed`" == "" ]; then
SED=sed
else
SED=gsed
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}."
# Check for targets without PMP support
TARGET=`echo ${dts} | cut -d '/' -f 1`
if [ $TARGET != "freedom-e310-arty" -a \
$TARGET != "sifive-hifive1" -a \
$TARGET != "coreip-e20-rtl" -a \
$TARGET != "coreip-e20-arty" ]; then
${SED} -i '/riscv,isa/a riscv,pmpregions = <1>;' ${dts}
echo -e "$0: \tAdded pmp@0"
fi
fi
# Add numintbits for the clic node if it doesn't exist
if [ `grep -c 'sifive,clic0' ${dts}` -ne 0 ]; then
if [ `grep -c 'sifive,numintbits' ${dts}` -eq 0 ]; then
echo "$0: Clic missing numintbits in ${dts}."
${SED} -i 's/interrupt-controller@2000000 {/interrupt-controller@2000000 {\n\t\t\tsifive,numintbits = <2>;/g' ${dts}
echo -e "$0: \tAdded numintbits to clic."
fi
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 stdout-path to the chosen node if one doesn't exist and a serial port does
if [ `grep -c 'stdout-path' ${dts}` -eq 0 ]; then
if [ `grep -c 'sifive,uart0' ${dts}` -ne 0 ]; then
echo "$0: stdout-path property not given, but a UART device exists."
serial_node=`grep -oP "serial@\d+" ${dts} | sort | uniq | head -n 1`
serial_path="/soc/${serial_node}:115200"
if [ `grep -c 'chosen' ${dts}` -eq 0 ]; then
${SED} -i "/cpus/i chosen {\n};" ${dts}
fi
${SED} -i "/chosen/a stdout-path=\"${serial_path}\";" ${dts}
echo -e "$0: \tAdded stdout-path ${serial_path}"
fi
fi
# FPGA targets need a 0x400000 byte offset into their SPI flash
# Is the target an FPGA?
if [ `echo ${dts} | grep -c 'arty'` -ne 0 -o `echo ${dts} | grep -c 'fpga'` -ne 0 ] ; then
# Is there a metal,entry property in the chosen node?
if [ `grep -c 'metal,entry' ${dts}` -eq 0 ] ; then
echo "$0: FPGA target needs metal,entry property to set boot offset."
# Find the SPI device with the lowest base address
first_spi_node=`grep -oE "spi@[[:xdigit:]]+?" ${dts} | sort | head -n 1`
# Get the DTS node label of that SPI device
spi_entry_label=`grep -oE "[^[:space:]]+?:\s+?${first_spi_node}" ${dts} | cut -d ':' -f 1`
if [ `grep -c 'chosen' ${dts}` -eq 0 ]; then
${SED} -i "/cpus/i chosen {\n};" ${dts}
fi
${SED} -i "/chosen/a metal,entry = <&${spi_entry_label} 0x400000>;" ${dts}
echo -e "$0: \tAdded metal,entry for SPI node ${first_spi_node} with label ${spi_entry_label}"
fi
fi
# Add a test memory node if one doesn't exist
if [ `grep -c 'sifive,testram0' ${dts}` -eq 0 ]; then
# bullet and U cores have a memory defined already
if [ `grep -c 'sifive,bullet0' ${dts}` -eq 0 -a `grep -c 'SiFive,FU' ${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
|
