riscv64: preinstalled image for Microchip PIC64GX Curiosity Kit

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

debian/changelog

@@ -1,3 +1,10 @@
+livecd-rootfs (24.10.7) UNRELEASED; urgency=medium
+
+  * riscv64: preinstalled server image for Microchip PIC64GX Curiosity Kit
+    (LP: #2072956)
+
+ -- Heinrich Schuchardt <heinrich.schuchardt@canonical.com>  Mon, 22 Jul 2024 14:51:25 +0200
+
 livecd-rootfs (24.10.6) oracular; urgency=medium
 
   [ Chad Smith ]

live-build/auto/config

@@ -9,8 +9,8 @@ case $ARCH:$SUBARCH in
 	i386:|\
 	ppc64el:|\
 	riscv64:|riscv64:generic|riscv64:icicle|riscv64:licheerv|\
-	riscv64:milkvmars|riscv64:nezha|riscv64:unmatched|riscv64:visionfive|\
+	riscv64:milkvmars|riscv64:nezha|riscv64:pic64gx|riscv64:unmatched|\
-	riscv64:visionfive2|\
+	riscv64:visionfive|riscv64:visionfive2|\
 	s390x:|\
 	*appliance*)
 		;;
@@ -396,6 +396,7 @@ if [ "$IMAGEFORMAT" = "ext4" ] && [ "$PROJECT" = "ubuntu-cpc" ]; then
 		riscv64:licheerv | \
 		riscv64:milkvmars | \
 		riscv64:nezha | \
+		riscv64:pic64gx | \
 		riscv64:unmatched | \
 		riscv64:visionfive | \
 		riscv64:visionfive2 | \

live-build/ubuntu-cpc/hooks.d/base/disk-image-uefi-non-cloud.binary

@@ -105,7 +105,7 @@ create_partitions() {
                        --change-name=12:CIDATA \
                        --new=1:: \
                        --attributes=1:set:2
-            elif [ "${SUBARCH:-}" = "icicle" ]; then
+            elif [ "${SUBARCH:-}" = "icicle" ] || [ "${SUBARCH:-}" = "pic64gx" ]; then
                 # Microchip Icicle Kit
                 sgdisk "${disk_image}" \
                        --set-alignment=2 \
@@ -328,6 +328,18 @@ install_grub() {
                         loader1="${loop_device}p13"
                         dd if=mountpoint/usr/lib/u-boot/${SUBARCH}/u-boot-sunxi-with-spl.bin of=$loader1
                         ;;
+                    "pic64gx")
+                        cp ${my_d}/riscv64/grub/90_watchdog-thresh.cfg mountpoint/etc/default/grub.d/
+                        # flash-kernel is needed to install the dtb for update-grub: it uses the
+                        # /proc/device-tree/model value to pick the correct dtb and as we are in a chroot,
+                        # the model value is wrong and we need to use /etc/flash-kernel/machine instead.
+                        # This explains why we install flash-kernel here.
+                        chroot mountpoint bash -c "echo 'Microchip PIC64GX Curiosity Kit' > /etc/flash-kernel/machine"
+                        # u-boot-pic64gx contains the vendor U-Boot
+                        chroot mountpoint apt-get install -qqy u-boot-pic64gx
+                        loader="${loop_device}p13"
+                        dd if=mountpoint/usr/lib/u-boot-pic64gx/u-boot.payload of=$loader
+                        ;;
                     "visionfive")
                         # flash-kernel is needed to install the dtb for update-grub: it uses the
                         # /proc/device-tree/model value to pick the correct dtb and as we are in a chroot,