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openwrt/target/linux/ramips/image/common-sercomm.mk
Mikhail Zhilkin 1b091311aa ramips: add support for Sercomm CPJ routers 
This commit adds support for following wireless routers:
 - Rostelecom RT-FL-1 (Serсomm RT-FL-1)
 - Rostelecom S1010 (Serсomm S1010.RT)

The devices are almost identical and the only difference is one bit in the
factory image PID (thanks to Maximilian Weinmann <x1@disroot.org>
(@MaxS0niX) for the info and idea to make one PR for two devices at once).

Devices specification
---------------------
   SoC:          MediaTek MT7620A, MIPS
   RAM:          64 MB
   Flash:        16 MB SPI NOR
   Wireless 2.4: MT7620 (b/g/n, 2x2)
   Wireless 5:   MT7612EN (a/n/ac, 2x2)
   Ethernet:     5xFE (WAN, LAN1-4)
   BootLoader:   U-Boot
   Buttons:      2 (wps, reset)
   LEDs:         1 amber and 1 green status GPIO leds
                 5 green ethernet GPIO leds
                 1 green GPIO 2.4 GHz WLAN led
                 1 green PHY 5 GHz WLAN led
                 1 green unmanaged power led
   USB ports:    No
   Power:        12 VDC, 1 A
   Connector:    Barrel

OEM easy installation
---------------------
1. Remove all dots from the factory image filename (except the dot
   before file extension)
2. Upload and update the firmware via the original web interface
3. Wait until green status led stops blinking (can take several minutes)
4. Login to OpenWrt initramsfs. It's recommended to make a backup of the
   mtd partitions at this point.
4. Perform sysupgrade using the following command (or use Luci):
   sysupgrade -n sysupgrade.bin
5. Wait until green status les stops blinking (can take several minutes)
6. Mission acomplished

Return to Stock
---------------
Option 1. Restore firmware Slot1 from a backup (firmware2.bin):
   cd /tmp
   mtd -e Firmware2 write firmware2.bin Firmware2
   printf 1 | dd bs=1 seek=$((0x18007)) count=1 of=/dev/mtdblock2
   reboot

Option 2. Decrypt, ungzip and split stock firmware image into the parts,
take Slot1 parts (kernel2.bin, rootfs2.bin) and write them:
   cd /tmp
   mtd -e Kernel2 write kernel2.bin Kernel2
   mtd -e RootFS2 write rootfs2.bin RootFS2
   printf 1 | dd bs=1 seek=$((0x18007)) count=1 of=/dev/mtdblock2
   reboot
More about stock firmware decryption:
Link: https://github.com/Psychotropos/sercomm_fwutils/

Debricking
----------
Use sercomm-recovery tool. You can use "ALL" mtd partition backup as a
recovery image.
Link: https://github.com/danitool/sercomm-recovery

MAC addresses
-------------
+---------+-------------------+-----------+
|         | MAC               | Algorithm |
+---------+-------------------+-----------+
| label   | 48:3e:xx:xx:xx:1e | label     |
| LAN     | 48:3e:xx:xx:xx:1e | label     |
| WAN     | 48:3e:xx:xx:xx:28 | label+10  |
| WLAN 2g | 48:3e:xx:xx:xx:20 | label+2   |
| WLAN 5g | 48:3e:xx:xx:xx:24 | label+6   |
+---------+-------------------+-----------+

Co-authored-by: Vadzim Vabishchevich <bestmc2009@gmail.com>
Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com>
2023-11-25 01:11:18 +01:00

235 lines
7.2 KiB
Makefile
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DEVICE_VARS += SERCOMM_KERNEL_OFFSET SERCOMM_ROOTFS_OFFSET
DEVICE_VARS += SERCOMM_KERNEL2_OFFSET SERCOMM_ROOTFS2_OFFSET
define Build/sercomm-append-tail
printf 16 | dd seek=$$((0x90)) of=$@ bs=1 conv=notrunc 2>/dev/null
printf 11223344556677889900112233445566 | \
sed 's/../\\x&/g' | xargs -d . printf >> $@
endef
define Build/sercomm-crypto
$(TOPDIR)/scripts/sercomm-crypto.py \
--input-file $@ \
--key-file $@.key \
--output-file $@.ser \
--version $(SERCOMM_SWVER)
$(STAGING_DIR_HOST)/bin/openssl enc -md md5 -aes-256-cbc \
-in $@ \
-out $@.enc \
-K `cat $@.key` \
-iv 00000000000000000000000000000000
dd if=$@.enc >> $@.ser 2>/dev/null
mv $@.ser $@
rm -f $@.enc $@.key
endef
define Build/sercomm-factory-cpj
dd bs=$$((0x1fff00)) count=1 if=$@ of=$@.kernel conv=notrunc \
2>/dev/null
dd bs=$$((0x1fff00)) skip=1 if=$@ of=$@.rootfs1 conv=notrunc \
2>/dev/null
cp $@.rootfs1 $@.rootfs2
$(TOPDIR)/scripts/sercomm-kernel-header.py \
--kernel-image $@.kernel \
--kernel-offset $(SERCOMM_KERNEL_OFFSET) \
--rootfs-image $@.rootfs1 \
--rootfs-offset $(SERCOMM_ROOTFS_OFFSET) \
--output-header $@.header1
$(TOPDIR)/scripts/sercomm-kernel-header.py \
--kernel-image $@.kernel \
--kernel-offset $(SERCOMM_KERNEL2_OFFSET) \
--rootfs-image $@.rootfs2 \
--rootfs-offset $(SERCOMM_ROOTFS2_OFFSET) \
--output-header $@.header2
cat $@.header1 $@.kernel > $@.kernel1
cat $@.header2 $@.kernel > $@.kernel2
rm $@.header1 $@.header2 $@.kernel
$(call Build/sercomm-part-tag-common,kernel $@.kernel1)
$(call Build/sercomm-part-tag-common,kernel2 $@.kernel2)
$(call Build/sercomm-part-tag-common,rootfs $@.rootfs1)
$(call Build/sercomm-part-tag-common,rootfs2 $@.rootfs2)
cat $@.kernel2 $@.rootfs2 $@.kernel1 $@.rootfs1 > $@
rm $@.kernel1 $@.rootfs1 $@.kernel2 $@.rootfs2
endef
define Build/sercomm-factory-cqr
$(TOPDIR)/scripts/sercomm-pid.py \
--hw-version $(SERCOMM_HWVER) \
--hw-id $(SERCOMM_HWID) \
--sw-version $(SERCOMM_SWVER) \
--pid-file $@.fhdr \
--extra-padding-size 0x190
printf $$(stat -c%s $(IMAGE_KERNEL)) | \
dd seek=$$((0x70)) of=$@.fhdr bs=1 conv=notrunc 2>/dev/null
printf $$(($$(stat -c%s $@)-$$(stat -c%s $(IMAGE_KERNEL))-$$((0x200)))) | \
dd seek=$$((0x80)) of=$@.fhdr bs=1 conv=notrunc 2>/dev/null
dd if=$@ >> $@.fhdr 2>/dev/null
mv $@.fhdr $@
endef
define Build/sercomm-kernel
$(TOPDIR)/scripts/sercomm-kernel-header.py \
--kernel-image $@ \
--kernel-offset $(SERCOMM_KERNEL_OFFSET) \
--rootfs-offset $(SERCOMM_ROOTFS_OFFSET) \
--output-header $@.hdr
dd if=$@ >> $@.hdr 2>/dev/null
mv $@.hdr $@
endef
define Build/sercomm-kernel-factory
$(TOPDIR)/scripts/sercomm-kernel-header.py \
--kernel-image $@ \
--kernel-offset $(SERCOMM_KERNEL_OFFSET) \
--rootfs-offset $(SERCOMM_ROOTFS_OFFSET) \
--output-header $@.khdr1
$(TOPDIR)/scripts/sercomm-kernel-header.py \
--kernel-image $@ \
--kernel-offset $(SERCOMM_KERNEL2_OFFSET) \
--rootfs-offset $(SERCOMM_ROOTFS2_OFFSET) \
--output-header $@.khdr2
cat $@.khdr1 $@.khdr2 > $@.khdr
dd if=$@ >> $@.khdr 2>/dev/null
mv $@.khdr $@
endef
define Build/sercomm-mkhash
dd bs=$$((0x400)) skip=1 if=$@ conv=notrunc 2>/dev/null | \
$(MKHASH) md5 | awk '{print $$1}' | tr -d '\n' | \
dd seek=$$((0x1e0)) of=$@ bs=1 conv=notrunc 2>/dev/null
endef
define Build/sercomm-part-tag
$(call Build/sercomm-part-tag-common,$(word 1,$(1)) $@)
endef
define Build/sercomm-part-tag-common
$(eval file=$(word 2,$(1)))
$(TOPDIR)/scripts/sercomm-partition-tag.py \
--input-file $(file) \
--output-file $(file).tmp \
--part-name $(word 1,$(1)) \
--part-version $(SERCOMM_SWVER)
mv $(file).tmp $(file)
endef
define Build/sercomm-payload
$(TOPDIR)/scripts/sercomm-pid.py \
--hw-version $(SERCOMM_HWVER) \
--hw-id $(SERCOMM_HWID) \
--sw-version $(SERCOMM_SWVER) \
--pid-file $@.pid \
--extra-padding-size 0x10 \
--extra-padding-first-byte 0x0a
$(TOPDIR)/scripts/sercomm-payload.py \
--input-file $@ \
--output-file $@.tmp \
--pid-file $@.pid
mv $@.tmp $@
rm $@.pid
endef
define Build/sercomm-pid-setbit
printf 1 | dd seek=$$(($(1))) of=$@ bs=1 conv=notrunc 2>/dev/null
endef
define Build/sercomm-prepend-tagged-kernel
$(CP) $(IMAGE_KERNEL) $(IMAGE_KERNEL).tagged
$(call Build/sercomm-part-tag-common,$(word 1,$(1)) \
$(IMAGE_KERNEL).tagged)
dd if=$@ >> $(IMAGE_KERNEL).tagged 2>/dev/null
mv $(IMAGE_KERNEL).tagged $@
endef
define Build/sercomm-reset-slot1-chksum
printf "\xff\xff\xff\xff" | \
dd of=$@ seek=$$((0x118)) bs=1 conv=notrunc 2>/dev/null
endef
define Build/sercomm-sysupgrade-cpj
dd bs=$$((0x1fff00)) count=1 if=$@ of=$@.kernel conv=notrunc \
2>/dev/null
dd bs=$$((0x1fff00)) skip=1 if=$@ of=$@.rootfs conv=notrunc \
2>/dev/null
$(TOPDIR)/scripts/sercomm-kernel-header.py \
--kernel-image $@.kernel \
--kernel-offset $(SERCOMM_KERNEL_OFFSET) \
--rootfs-image $@.rootfs \
--rootfs-offset $(SERCOMM_ROOTFS_OFFSET) \
--output-header $@.header
cat $@.header $@.kernel $@.rootfs > $@
rm $@.header $@.kernel $@.rootfs
endef
define Device/sercomm
$(Device/nand)
LOADER_TYPE := bin
IMAGES += factory.img
endef
define Device/sercomm_cpj
SOC := mt7620a
DEVICE_VENDOR := Rostelecom
DEVICE_ALT0_VENDOR := Sercomm
IMAGE_SIZE := 7743k
SERCOMM_HWID := CPJ
SERCOMM_HWVER := 10000
SERCOMM_SWVER := 1001
SERCOMM_KERNEL_OFFSET := 0x70100
SERCOMM_ROOTFS_OFFSET := 0x270000
SERCOMM_KERNEL2_OFFSET := 0x800100
SERCOMM_ROOTFS2_OFFSET := 0xa00000
IMAGE/sysupgrade.bin := append-kernel | append-rootfs | \
sercomm-sysupgrade-cpj | pad-rootfs | check-size | \
append-metadata
ARTIFACTS := initramfs-factory.img
DEVICE_PACKAGES := kmod-mt76x2
endef
define Device/sercomm_cxx_dxx
$(Device/sercomm)
KERNEL_SIZE := 6144k
KERNEL_LOADADDR := 0x81001000
LZMA_TEXT_START := 0x82800000
SERCOMM_KERNEL_OFFSET := 0x400100
SERCOMM_ROOTFS_OFFSET := 0x1000000
endef
define Device/sercomm_cxx
$(Device/sercomm_cxx_dxx)
SERCOMM_KERNEL2_OFFSET := 0xa00100
SERCOMM_ROOTFS2_OFFSET := 0x3000000
KERNEL := kernel-bin | append-dtb | lzma | loader-kernel | lzma -a0 | \
uImage lzma
IMAGE/sysupgrade.bin := append-kernel | sercomm-kernel | \
sysupgrade-tar kernel=$$$$@ | append-metadata
IMAGE/factory.img := append-kernel | sercomm-kernel-factory | \
append-ubi | sercomm-factory-cqr | sercomm-mkhash
endef
define Device/sercomm_dxx
$(Device/sercomm_cxx_dxx)
KERNEL := kernel-bin | append-dtb | lzma | loader-kernel | lzma -a0 | \
uImage lzma | sercomm-kernel
KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | loader-kernel | \
lzma -a0 | uImage lzma
IMAGE/sysupgrade.bin := sysupgrade-tar | append-metadata
IMAGE/factory.img := append-ubi | check-size | \
sercomm-part-tag rootfs | sercomm-prepend-tagged-kernel kernel | \
gzip | sercomm-payload | sercomm-crypto
endef
define Device/sercomm_s1500
$(Device/sercomm)
SERCOMM_KERNEL_OFFSET := 0x1700100
SERCOMM_ROOTFS_OFFSET := 0x1f00000
SERCOMM_KERNEL2_OFFSET := 0x1b00100
KERNEL := kernel-bin | append-dtb | lzma | loader-kernel | lzma -a0 | \
uImage lzma
KERNEL_INITRAMFS := kernel-bin | append-dtb | lzma | loader-kernel | \
lzma -a0 | uImage lzma
IMAGE/sysupgrade.bin := append-kernel | sercomm-kernel | \
sysupgrade-tar kernel=$$$$@ | append-metadata
DEVICE_PACKAGES := kmod-mt76x2 kmod-usb3
endef
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