Initial commit

target/linux/ath79/image/common-senao.mk

@@ -0,0 +1,36 @@
+DEVICE_VARS += SENAO_IMGNAME
+
+# This needs to make /tmp/_sys/sysupgrade.tgz an empty file prior to
+# sysupgrade, as otherwise it will implant the old configuration from
+# OEM firmware when writing rootfs from factory.bin
+# rootfs size and checksum is taken from a squashfs header
+# the header does not exist, therefore, supply the size and md5
+define Build/senao-tar-gz
+	-[ -f "$@" ] && \
+	mkdir -p $@.tmp && \
+	touch $@.tmp/failsafe.bin && \
+	echo '#!/bin/sh' > $@.tmp/before-upgrade.sh && \
+	echo ': > /tmp/_sys/sysupgrade.tgz' >> $@.tmp/before-upgrade.sh && \
+	echo -n $$(( $$(cat $@ | wc -c) / 4096 * 4096 )) > $@.len && \
+	dd if=$@ bs=$$(cat $@.len) count=1 | md5sum - | cut -d ' ' -f 1 > $@.md5 && \
+	echo '#!/bin/sh' > $@.tmp/after-upgrade.sh && \
+	printf 'fw_setenv rootfs_size 0x%08x\n' $$(cat $@.len) >> $@.tmp/after-upgrade.sh && \
+	printf 'fw_setenv rootfs_checksum %s\n' $$(cat $@.md5) >> $@.tmp/after-upgrade.sh && \
+	$(CP) $(KDIR)/loader-$(DEVICE_NAME).uImage \
+		$@.tmp/openwrt-$(word 1,$(1))-uImage-lzma.bin && \
+	$(CP) $@ $@.tmp/openwrt-$(word 1,$(1))-root.squashfs && \
+	$(TAR) -cp --numeric-owner --owner=0 --group=0 --mode=a-s --sort=name \
+		$(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
+		-C $@.tmp . | gzip -9n > $@ && \
+	rm -rf $@.tmp $@.len $@.md5
+endef
+
+define Device/senao_loader_okli
+  $(Device/loader-okli-uimage)
+  KERNEL := kernel-bin | append-dtb | lzma | uImage lzma -M 0x73714f4b
+  LOADER_KERNEL_MAGIC := 0x73714f4b
+  IMAGES += factory.bin
+  IMAGE/factory.bin := append-kernel | pad-to $$$$(BLOCKSIZE) | append-rootfs | pad-rootfs | \
+	check-size | senao-tar-gz $$$$(SENAO_IMGNAME)
+  IMAGE/sysupgrade.bin := $$(IMAGE/factory.bin) | append-metadata
+endef