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dc451a4b24
The flash layout on the Storlink reference design for Gemini is using 2 MB flash for the kernel, and it also insists on overwriting the partition table with default values on every boot. The same is true for the SQ201. This poses a problem on recent OpenWrt firmware as the base zImage is bigger than 2 MB. At the same time there is a ramdisk partition of 6 MB that we don't really need. The partition table looks like this: Creating 7 MTD partitions on "30000000.flash": 0x000000000000-0x000000016000 : "BOOT" 0x000000120000-0x000000320000 : "Kern" 0x000000320000-0x000000920000 : "Ramdisk" 0x000000920000-0x000000f20000 : "Application" 0x000000f20000-0x000000f40000 : "VCTL" 0x000000f40000-0x000000fe0000 : "CurConf" 0x000000fe0000-0x000001000000 : "FIS directory" On boot the "Kern" partition is copied to RAM @0x01600000 and the "Ramdisk" partition is copied to RAM @0x00800000. Then the kernel is executed. The idea with this patch is to extend the "Kern" partition with the "Ramdisk" partition to get a full 8 MB to use for the kernel. Then we put the OpenWrt JFFS2 rootfs inside the "Application" partition. We create a small assembly loop that we prepend to the "Kern" image that will copy the "Kern" from 0x0160000 and the "Ramdisk" from 0x00800000 and put them in consecutive space at 0x00400000 and execute it from there, using "Application" as rootfs. We generate 3 main files: - zImage - contains the assembly bootstrap loop and the first part of the generated kernel image - rd.gz - contains the second part of the generated kernel image - hddapp.tgz - contains the root filesystem On the SQ201 I flash these manually using the native boot loader PLATO, "Y" alternative for the zImage, "R" for the rd.gz image and "A" for hddapp.tgz. This works fine and I can now boot to prompt on the SQ201 with nothing but flash. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
245 lines
7.9 KiB
Makefile
245 lines
7.9 KiB
Makefile
#
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# Copyright (C) 2009-2018 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(TOPDIR)/rules.mk
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include $(INCLUDE_DIR)/image.mk
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define Build/copy-kernel
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$(MAKE) -C copy-kernel CROSS_COMPILE=$(TARGET_CROSS)
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endef
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# Cook a "WRGG" image, this board is apparently one in the D-Link
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# WRGG family and uses the exact same firmware format as other
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# D-Link devices.
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define Build/dir685-image
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mkwrggimg -i $@ \
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-o $@.new \
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-d /dev/mtdblock/1 \
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-s wrgns01_dlwbr_dir685RBWW \
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-v 'N/A' \
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-m dir685 \
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-B 96bb
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mv $@.new $@
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endef
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# Padding added after the rootfs to an even 128k boundary
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# as this is 128k eraseblocks flash.
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define Build/dir685-pad-rootfs
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$(STAGING_DIR_HOST)/bin/padjffs2 $(IMAGE_ROOTFS) -c 128 >>$@
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endef
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# Build D-Link DNS-313 images using the special header tool.
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# rootfs.tgz and rd.tgz contains nothing, we only need them
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# to satisfy the boot loader on the device. The zImage is
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# the only real content.
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define Build/dns313-images
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mkdir -p $@.tmp/.boot
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chmod 755 $@.tmp/.boot
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echo "dummy" > $@.tmp/dummyfile
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dns313-header $@.tmp/dummyfile \
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$@.tmp/.boot/rootfs.tgz
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dns313-header $@.tmp/dummyfile \
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$@.tmp/.boot/rd.gz
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dns313-header $(IMAGE_KERNEL) \
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$@.tmp/.boot/zImage
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rm $@.tmp/dummyfile
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genext2fs --block-size $(BLOCKSIZE:%k=%Ki) \
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--size-in-blocks $$((1024 * $(CONFIG_TARGET_KERNEL_PARTSIZE))) \
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--squash-uids \
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--root $@.tmp $@.tmp-boot
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# The device firmware needs revision 1 of EXT2
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tune2fs -O filetype $@.tmp-boot
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e2fsck -pDf $@.tmp-boot > /dev/null
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./dns313_gen_hdd_img.sh $@ $@.tmp-boot $(IMAGE_ROOTFS) \
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$(CONFIG_TARGET_KERNEL_PARTSIZE) \
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$(CONFIG_TARGET_ROOTFS_PARTSIZE)
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rm -rf $@.tmp
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endef
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define Build/wiligear-image
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$(STAGING_DIR_HOST)/bin/mkfwimage2 \
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-m GEOS -f 0x30000000 -z \
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-v $(1).v5.00.SL3512.OpenWrt.00000.000000.000000 \
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-p Kernel:0x020000:0x100000:0:0:$(IMAGE_KERNEL) \
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-p Ramdisk:0x120000:0x500000:0:0:$@ \
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-o $@.new
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mv $@.new $@
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endef
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# Create the default image format used by the StorLink reference design
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# SL93512r, Raidsonic NAS4220B and Itian Square One SQ201
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# with the squashfs and overlay inside the "application" partition.
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#
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# These devices have a hard-coded partition table that the boot loader
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# constantly reflashes back, so we need to work around it like this:
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#
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# 0x000000120000-0x000000320000 : "Kern" - small copy routine and first
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# part of the kernel goes here
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# 0x000000320000-0x000000920000 : "Ramdisk" - second part of the kernel and
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# some padding goes here
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# 0x000000920000-0x000000f20000 : "Application" - rootfs goes here
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define Build/storlink-default-images
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mkdir -p $@.tmp
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$(call Build/copy-kernel)
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# "App" partition is the rootfs
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mv $@ $@.tmp/hddapp.tgz
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# 256 bytes copy routine
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dd if=copy-kernel/copy-kernel.bin of=$@.tmp/zImage
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$(call Image/pad-to,$@.tmp/zImage,512)
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# Copy first part of the kernel into zImage
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dd if=$(IMAGE_KERNEL) of=$@.tmp/zImage bs=1 seek=512 count=2096640
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# Put the rest of the kernel into the "ramdisk"
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dd if=$(IMAGE_KERNEL) of=$@.tmp/rd.gz bs=1 skip=2096640 count=6144k conv=sync
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cp ./ImageInfo-$(1) $@.tmp/ImageInfo
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sed -i -e "s/DATESTR/`date +%Y%m%d $(if $(SOURCE_DATE_EPOCH),--date "@$(SOURCE_DATE_EPOCH)")`/g" $@.tmp/ImageInfo
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(cd $@.tmp; tar --sort=name --owner=0 --group=0 --numeric-owner -czf $@ * \
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$(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)"))
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rm -rf $@.tmp
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endef
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# WBD-111 and WBD-222:
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# work around the bootloader's bug with extra nops
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# FIXME: is this really needed now that we no longer append the code
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# to change the machine ID number? Needs testing on Wiliboard.
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define Build/wbd-nops
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mv $@ $@.tmp
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echo -en "\x00\x00\xa0\xe1\x00\x00\xa0\xe1\x00\x00\xa0\xe1\x00\x00\xa0\xe1" > $@
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cat $@.tmp >> $@
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rm -f $@.tmp
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endef
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# All DTB files are prefixed with "gemini-"
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define Device/Default
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PROFILES := Default
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KERNEL_DEPENDS = $$(wildcard $(DTS_DIR)/$$(DEVICE_DTS).dts)
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KERNEL_NAME := zImage
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KERNEL := kernel-bin | append-dtb
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BLOCKSIZE := 128k
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SUPPORTED_DEVICES := $(subst _,$(comma),$(1))
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endef
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# A reasonable set of default packages handling the NAS type
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# of devices out of the box (former NAS42x0 IcyBox defaults)
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GEMINI_NAS_PACKAGES:=kmod-md-mod kmod-md-linear kmod-md-multipath \
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kmod-md-raid0 kmod-md-raid1 kmod-md-raid10 kmod-md-raid456 \
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kmod-fs-btrfs kmod-fs-cifs kmod-fs-nfs \
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kmod-fs-nfsd kmod-fs-ntfs kmod-fs-reiserfs kmod-fs-vfat \
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kmod-nls-utf8 kmod-usb-storage-extras \
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samba36-server mdadm cfdisk fdisk e2fsprogs badblocks \
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partx-utils
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# The DIR-685 flash layout is kernel in WRGG format, padded and followed
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# by the appended rootfs followed by some reasonable JFFS padding, the
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# remainder will be used by JFFS2 through overlayfs.
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#
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# - For the factory image, the WRGG image includes the rootfs so that the
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# default firmware will flash it properly as all it knows is WRGG format.
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# - For the sysupgrade, we do not include the rootfs in the kernel image
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# so it is not needelessly tossed into the RAM by the boot loader.
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# This will be flashed from OpenWrt userland anyways so we only need
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# the minimum to make the boot loader happy.
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define Device/dlink_dir-685
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DEVICE_VENDOR := D-Link
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DEVICE_MODEL := DIR-685 Xtreme N Storage Router
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DEVICE_DTS := gemini-dlink-dir-685
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DEVICE_PACKAGES := $(GEMINI_NAS_PACKAGES) \
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kmod-rt2800-pci
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IMAGES := factory.bin sysupgrade.bin
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# Pad to 128k erase blocks with 160 bytes WRGG header
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IMAGE/factory.bin := append-kernel | pad-offset 128k 160 | append-rootfs | dir685-pad-rootfs | dir685-image
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IMAGE/sysupgrade.bin := append-kernel | pad-offset 128k 160 | dir685-image | append-rootfs | dir685-pad-rootfs | append-metadata
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endef
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TARGET_DEVICES += dlink_dir-685
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define Device/dlink_dns-313
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DEVICE_VENDOR := D-Link
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DEVICE_MODEL := DNS-313 1-Bay Network Storage Enclosure
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DEVICE_DTS := gemini-dlink-dns-313
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DEVICE_TYPE := nas
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DEVICE_PACKAGES := $(GEMINI_NAS_PACKAGES)
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BLOCKSIZE := 1k
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FILESYSTEMS := ext4
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IMAGES := factory.bin.gz
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IMAGE/factory.bin.gz := dns313-images | gzip
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endef
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TARGET_DEVICES += dlink_dns-313
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# Default images setup used by the StorLink reference designs
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define Device/storlink-reference
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IMAGES := factory.bin
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IMAGE/factory.bin := append-rootfs | pad-rootfs | pad-to 6144k | \
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storlink-default-images $(1)
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DEVICE_PACKAGES := $(GEMINI_NAS_PACKAGES)
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endef
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define Device/itian_sq201
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$(Device/storlink-reference)
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DEVICE_VENDOR := ITian
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DEVICE_MODEL := Square One SQ201
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DEVICE_DTS := gemini-sq201
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DEVICE_PACKAGES += kmod-rt61-pci kmod-usb2-pci
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endef
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TARGET_DEVICES += itian_sq201
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define Device/raidsonic_ib-4220-b
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$(Device/storlink-reference)
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DEVICE_VENDOR := Raidsonic
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DEVICE_MODEL := NAS IB-4220-B
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DEVICE_DTS := gemini-nas4220b
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DEVICE_TYPE := nas
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endef
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TARGET_DEVICES += raidsonic_ib-4220-b
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define Device/storlink_sl93512r
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$(Device/storlink-reference)
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DEVICE_VENDOR := StorLink
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DEVICE_MODEL := SL93512r
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DEVICE_DTS := gemini-sl93512r
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endef
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TARGET_DEVICES += storlink_sl93512r
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# The wiliboard images need some changes to be functional and buildable.
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#
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# The dts would need to use the ecoscentric,redboot-fis-partitions partition
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# parser to get the correct partition offsets and size.
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#
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# The mkfwimage2 call need to be adjusted to reflect the real size of kernel
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# and rootfs. It is expected that the OEM firmware adjusts the on flash
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# partition table with the values defined in the image header.
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define Device/wiliboard_wbd111
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DEVICE_VENDOR := Wiliboard
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DEVICE_MODEL := WBD-111
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DEVICE_DTS := gemini-wbd111
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KERNEL := kernel-bin | append-dtb | wbd-nops
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IMAGES := factory.bin
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IMAGE/factory.bin := append-rootfs | pad-rootfs | wiligear-image "WILI-S.WILIBOARD"
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endef
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define Device/wiliboard_wbd222
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DEVICE_VENDOR := Wiliboard
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DEVICE_MODEL := WBD-222
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DEVICE_DTS := gemini-wbd222
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KERNEL := kernel-bin | append-dtb | wbd-nops
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IMAGES := factory.bin
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IMAGE/factory.bin := append-rootfs | pad-rootfs | wiligear-image "WILI-S.WBD222"
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endef
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$(eval $(call BuildImage))
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