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mediatek: add ubootmod layout for cudy tr3000 v1

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This allows us to use the full size of nand, which increases ubi size
from 64M to 122.25M.

If you are at factory firmware, please refer commit 63b8d98dd0 ("mediatek: add support for Cudy TR3000 v1")
to boot into OpenWrt initramfs (stock layout).

Flash instructions:
1. Login into the device and backup everything, especially 'Factory' part.
1. Unlock mtd partitions:
   apk update && apk add kmod-mtd-rw
   insmod mtd-rw i_want_a_brick=1
3. Write new BL2 and FIP
   mtd write openwrt-mediatek-filogic-cudy_tr3000-v1-ubootmod-preloader.bin BL2
   mtd write openwrt-mediatek-filogic-cudy_tr3000-v1-ubootmod-bl31-uboot.fip FIP
4. Set static IP on your PC:
   IP 192.168.1.254/24, GW 192.168.1.1
5. Serve OpenWrt initramfs image using TFTP server.
6. Cut off the power and re-engage, wait for TFTP recovery to complete.
7. After OpenWrt has booted, perform sysupgrade.

Tested-by: Yangyu Chen <cyy@cyyself.name>
Signed-off-by: Tianling Shen <cnsztl@immortalwrt.org>
This commit is contained in:
Tianling Shen
2025-01-24 16:15:22 +08:00
parent 9f76070e2d
commit 6f8c58bfd8
12 changed files with 638 additions and 216 deletions
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25
target/linux/mediatek/image/filogic.mk
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@@ -761,6 +761,31 @@ define Device/cudy_tr3000-v1
endef
TARGET_DEVICES += cudy_tr3000-v1
define Device/cudy_tr3000-v1-ubootmod
DEVICE_VENDOR := Cudy
DEVICE_MODEL := TR3000
DEVICE_VARIANT := v1 (OpenWrt U-Boot layout)
DEVICE_DTS := mt7981b-cudy-tr3000-v1-ubootmod
DEVICE_DTS_DIR := ../dts
DEVICE_PACKAGES := kmod-usb3 kmod-mt7915e kmod-mt7981-firmware mt7981-wo-firmware
UBINIZE_OPTS := -E 5
BLOCKSIZE := 128k
PAGESIZE := 2048
KERNEL_IN_UBI := 1
UBOOTENV_IN_UBI := 1
IMAGES := sysupgrade.itb
KERNEL_INITRAMFS_SUFFIX := -recovery.itb
KERNEL := kernel-bin | gzip
KERNEL_INITRAMFS := kernel-bin | lzma | \
fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb with-initrd | pad-to 64k
IMAGE/sysupgrade.itb := append-kernel | \
fit gzip $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb external-static-with-rootfs | append-metadata
ARTIFACTS := preloader.bin bl31-uboot.fip
ARTIFACT/preloader.bin := mt7981-bl2 cudy-tr3000-v1
ARTIFACT/bl31-uboot.fip := mt7981-bl31-uboot cudy_tr3000-v1
endef
TARGET_DEVICES += cudy_tr3000-v1-ubootmod
define Device/cudy_wr3000-v1
DEVICE_VENDOR := Cudy
DEVICE_MODEL := WR3000