[OpenWrt-Devel] [PATCH v3 1/2] include/image.mk: Introduce generic option to wrap kernel into JFFS2

[Benjamin Berg]

Some devices require the kernel to be in a JFFS2 file system. Make the
support for this more generic so that it can be used by other devices.

Signed-off-by: Benjamin Berg <benjamin at sipsolutions.net>
---
 include/image.mk                   | 15 +++++++++++++++
 target/linux/ar71xx/image/Makefile | 19 +++----------------
 2 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/include/image.mk b/include/image.mk
index 43980bc..753bd48 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -347,6 +347,21 @@ define Build/gzip
 	@mv $@.new $@
 endef
 
+define Build/jffs2
+	rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 && \
+		mkdir -p $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$$(dirname $(1)) && \
+		cp $@ $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/$(1) && \
+		$(STAGING_DIR_HOST)/bin/mkfs.jffs2 --pad \
+			$(if $(CONFIG_BIG_ENDIAN),--big-endian,--little-endian) \
+			--squash-uids -v -e $(patsubst %k,%KiB,$(BLOCKSIZE)) \
+			-o $@.new \
+			-d $(KDIR_TMP)/$(DEVICE_NAME)/jffs2 \
+			2>&1 1>/dev/null | awk '/^.+$$$$/' && \
+		$(STAGING_DIR_HOST)/bin/padjffs2 $@.new -J $(patsubst %k,,$(BLOCKSIZE))
+	-rm -rf $(KDIR_TMP)/$(DEVICE_NAME)/jffs2/
+	@mv $@.new $@
+endef
+
 define Build/kernel-bin
 	rm -f $@
 	cp $^ $@
diff --git a/target/linux/ar71xx/image/Makefile b/target/linux/ar71xx/image/Makefile
index 7bf2f27..15cf2c6 100644
--- a/target/linux/ar71xx/image/Makefile
+++ b/target/linux/ar71xx/image/Makefile
@@ -140,20 +140,6 @@ endef
 
 DEVICE_VARS += UBNT_BOARD UBNT_CHIP UBNT_TYPE
 
-define Build/mkubntkernelimage
-	rm -rf $(KDIR_TMP)/ubnt-$(KERNEL_IMAGE)/image && \
-		mkdir -p $(KDIR_TMP)/ubnt-$(KERNEL_IMAGE)/image && \
-		cp $@ $(KDIR_TMP)/ubnt-$(KERNEL_IMAGE)/image/kernel0 && \
-		$(STAGING_DIR_HOST)/bin/mkfs.jffs2 \
-			--pad --big-endian --squash-uids -v -e 64KiB \
-			-o $@.new \
-			-d $(KDIR_TMP)/ubnt-$(KERNEL_IMAGE)/image \
-			2>&1 && \
-		$(STAGING_DIR_HOST)/bin/padjffs2 $@.new -J 64
-	-rm -rf $(KDIR_TMP)/ubnt-$(KERNEL_IMAGE)/image
-	@mv $@.new $@
-endef
-
 define Device/Default
   BOARDNAME :=
   DEVICE_PROFILE = $$(BOARDNAME)
@@ -1135,15 +1121,16 @@ endef
 TARGET_DEVICES += ubnt-rs ubnt-rspro ubnt-ls-sr71
 
 define Device/ubnt-uap-pro
+  KERNEL_SIZE := 1536k
   IMAGE_SIZE := 15744k
   MTDPARTS := spi0.0:256k(u-boot)ro,64k(u-boot-env)ro,1536k(kernel),14208k(rootfs),256k(cfg)ro,64k(EEPROM)ro,15744k at 0x50000(firmware)
   UBNT_TYPE := BZ
   UBNT_CHIP := ar934x
   BOARDNAME := UAP-PRO
   DEVICE_PROFILE := UBNT UAPPRO
-  KERNEL := kernel-bin | patch-cmdline | lzma | uImage lzma | mkubntkernelimage
+  KERNEL := kernel-bin | patch-cmdline | lzma | uImage lzma | jffs2 kernel0
   IMAGES := sysupgrade.bin factory.bin
-  IMAGE/sysupgrade.bin = append-kernel 1536k | append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE)
+  IMAGE/sysupgrade.bin = append-kernel $$$$(KERNEL_SIZE) | append-rootfs | pad-rootfs | check-size $$$$(IMAGE_SIZE)
   IMAGE/factory.bin = $$(IMAGE/sysupgrade.bin) | mkubntimage2
 endef
 
-- 
2.6.2
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