Add build scripts for Kesrel Zephyr firmware image

diff --git a/build_kestrel_firmware b/build_kestrel_firmware
new file mode 100755 (executable)
index 0000000..5ad92ae
--- /dev/null
+++ b/build_kestrel_firmware
@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+# Copyright 2022 Raptor Engineering, LLC
+# Licensed under the terms of the GNU LGPLv3+
+#
+# Ensure that the LibreSoC packages and HDL tools
+# are installed prior to running this script,
+# as well as the kestrel repos
+#
+#   ./install-hdl-apt-reqs
+#   ./hdl-dev-repos
+#   ./hdl-tools-yosys
+#   ./ppc64-gdb-gcc
+#   ./nextpnr-ecp5
+#   ./hdl-kestrel-repos
+
+set -e
+
+export PATH=/usr/local/libtrellis/bin:$PATH
+export PATH=/usr/local/nextpnr-ecp5/bin:$PATH
+
+export KESTREL=/home/$SUDO_USER/src/kestrel
+echo "Building ppc64el soft floating point library..."
+cd $KESTREL/firmware/gcc/libgcc/soft-fp
+# Ignore expected errors
+set +e
+gcc -c -O2 -msoft-float -mno-string -mno-multiple -mno-vsx -mno-altivec -mlittle-endian -mstrict-align -fno-stack-protector -m64 -mabi=elfv2 -mcmodel=small -I../config/rs6000/ -I../../include -I.. *.c &> /dev/null
+set -e
+ar -crv libsoft-fp.a *.o
+cp -Rp libsoft-fp.a ../../../
+
+echo "Building Zephyr..."
+cd $KESTREL/firmware
+export SOURCE_ROOT_DIR=$(pwd)
+cd zephyr-rtos
+rm -rf build
+mkdir build
+cd build
+ZEPHYR_BASE=${SOURCE_ROOT_DIR}/zephyr-rtos ZEPHYR_TOOLCHAIN_VARIANT=host cmake -DZEPHYR_MODULES="${SOURCE_ROOT_DIR}/zephyr-littlefs;${SOURCE_ROOT_DIR}/zephyr-mbedtls;${SOURCE_ROOT_DIR}/zephyr-civetweb" -DBOARD=litex_kestrel ${SOURCE_ROOT_DIR}/zephyr-firmware
+cp -Rp ../../libsoft-fp.a zephyr/
+make -j32
+
+echo "Zephyr firmware binary now in $KESTREL/firmware/zephyr-rtos/build/zephyr/zephyr.bin"

diff --git a/firmware-kestrel-repos b/firmware-kestrel-repos
new file mode 100755 (executable)
index 0000000..c010ba0
--- /dev/null
+++ b/firmware-kestrel-repos
@@ -0,0 +1,28 @@
+#!/bin/bash
+if [ "$EUID" -ne 0 ]
+  then echo "Please run as root using 'sudo bash'"
+  exit
+fi
+
+runuser $SUDO_USER --preserve-environment -c '
+cd /home/$SUDO_USER
+mkdir -p src/kestrel/firmware
+cd src/kestrel/firmware
+git clone https://gitlab.raptorengineering.com/kestrel-collaboration/kestrel-firmware/zephyr-rtos
+git clone https://gitlab.raptorengineering.com/kestrel-collaboration/kestrel-firmware/zephyr-firmware
+cd zephyr-firmware
+git submodule init
+git submodule update
+cd ..
+git clone https://gitlab.raptorengineering.com/kestrel-collaboration/kestrel-firmware/zephyr-littlefs
+git clone https://gitlab.raptorengineering.com/kestrel-collaboration/kestrel-firmware/zephyr-mbedtls
+git clone https://gitlab.raptorengineering.com/kestrel-collaboration/kestrel-firmware/zephyr-civetweb
+git clone https://gitlab.raptorengineering.com/kestrel-collaboration/kestrel-tooling/gcc
+'
+cd ../
+chown -R $SUDO_USER .
+chgrp -R $SUDO_USER .
+echo -e "
+\e[1;91mAll Libre-SOC Kestrel firmware dependencies should now be installed.\e[0m
+"
+

diff --git a/install-firmware-apt-reqs b/install-firmware-apt-reqs
new file mode 100755 (executable)
index 0000000..1088957
--- /dev/null
+++ b/install-firmware-apt-reqs
@@ -0,0 +1,24 @@
+#!/bin/bash
+#
+# Relies on install-hdl-apt-reqs being run first
+
+if [ "$EUID" -ne 0 ]
+  then echo "Please run as root"
+  exit
+fi
+# for qemu 5.2 use debian/buster backports
+cat << EOF > /etc/apt/sources.list.d/buster_backports.list
+deb http://deb.debian.org/debian buster-backports main
+EOF
+
+# oooo annoying, pin preferences for buster-backports
+cat << EOF > /etc/apt/preferences.d/99buster-backports
+Package: *
+Pin: release a=buster-backports
+Pin-Priority: 900
+EOF
+
+apt-get update -y
+apt-get upgrade -y
+apt-get install -y python3-pykwalify \
+       python3-pyelftools