Possible to flash R3 ubuntu image into eMMC/NAND?

Banana Pi Router design BPI-R3/R3 Mini(MT7986)
63

This is defined in the devicetree of the system that is booting. Not sure if this is the same on the openwrt version you want to use.

Also in this devicetree, this partition is set as read-only. You’ll need to remove this from the dts, or write to the partition from U-Boot

Also, if you want to write to mtd on linux, the dts may be missing properties to nand, which I don’t know if @frank-w added that to the dts in the Ubuntu image you are using. See:

64

For R3 i have not added mtd partitions afaik

65

Here you have the partitions.

Including the read-only property.

Edit:

In some cases I saw you also added the ubi-volumes to the dts(o). That I believe is abundant, as the setup of the ubi-volumes is already stored on the ubi-partition. Also defining them in the dts(o) would be the second definition of the ubi-volumes and, when not corresponding, may lead to errors.

66

The desired Openwrt devicetree partition is different to that of my NAND partition. It should be the same as the Openwrt NOR:

root@OpenWrt:/# cat proc/mtd
dev:    size   erasesize  name
mtd0: 00040000 00010000 "BL2"
mtd1: 00010000 00010000 "u-boot-env"
mtd2: 000b0000 00010000 "Factory"
mtd3: 00080000 00010000 "FIP"
mtd4: 00e00000 00010000 "firmware"
root@OpenWrt:/#

Previously, I flashed Openwrt single-image to the NOR /dev/mtdblock0 which should be referring to the “BL2”, right?

Do you have experience on flashing Openwrt images to NAND from u-boot?

67

No I try to always use linux

68

I have just re-flashed the entire NAND with Openwrt single image from u-boot. It does work.

BPI-R3> run useusb
USB is stopped. Please issue 'usb start' first.
starting USB...
xhci-mtk xhci@11200000: hcd: 0x0000000011200000, ippc: 0x0000000011203e00
xhci-mtk xhci@11200000: ports disabled mask: u3p-0x0, u2p-0x0
xhci-mtk xhci@11200000: u2p:2, u3p:1
Register 300010f NbrPorts 3
Starting the controller
USB XHCI 1.10
Bus xhci@11200000: 3 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
            System Volume Information/
   200072   bl2_emmc.img
    17408   gpt_emmc_100m6g.img
 16546559   rootfs_arm64.cpio.zst
 27956672   mtk-bpi-r3-NOR-WAN1-RJ45-20220720-single-image.bin
 69584284   mtk-bpi-r3-EMMC-WAN1-RJ45-20220720-single-image.img
 38666240   mtk-bpi-r3-NAND-WAN1-RJ45-20220720-single-image.bin
  9699328   openwrt-mediatek-filogic-bananapi_bpi-r3-initramfs-recovery.itb
  9518220   bpi-r3.itb
 99280305   bpi-r3_6.12.47-main.tar.gz
  7865152   bpi-r3_emmc.img.gz
   200793   bpi-r3_emmc_bl2.img
   280749   bpi-r3_emmc_fip.bin
 727753804   bpi-r3_noble_6.12.47-main_sdmmc.img.gz
   209616   bpi-r3_spim-nand_bl2.img
   279581   bpi-r3_spim-nand_fip.bin
            WAP7633/

15 file(s), 2 dir(s)

BPI-R3> mtd list
jedec_spi_nor spi_nor@0: unrecognized JEDEC id bytes: ff, ef, aa
List of MTD devices:
* spi-nand0
  - device: spi_nand@1
  - parent: spi@1100a000
  - driver: spi_nand
  - path: /spi@1100a000/spi_nand@1
  - type: NAND flash
  - block size: 0x20000 bytes
  - min I/O: 0x800 bytes
  - OOB size: 64 bytes
  - OOB available: 24 bytes
  - 0x000000000000-0x000008000000 : "spi-nand0"
          - 0x000000000000-0x000000080000 : "bl2"
          - 0x000000080000-0x000000380000 : "factory"
          - 0x000000380000-0x000000580000 : "fip"
          - 0x000000580000-0x000008000000 : "ubi"
BPI-R3> mtd erase spi-nand0
jedec_spi_nor spi_nor@0: unrecognized JEDEC id bytes: ff, ef, aa
Erasing 0x00000000 ... 0x07ffffff (1024 eraseblock(s))
BPI-R3> fatload usb 0:1 $loadaddr mtk-bpi-r3-NAND-WAN1-RJ45-20220720-single-image.bin
38666240 bytes read in 2766 ms (13.3 MiB/s)
BPI-R3> mtd write spi-nand0 $loadaddr 0x0 0x8000000
jedec_spi_nor spi_nor@0: unrecognized JEDEC id bytes: ff, ef, aa
Writing 134217728 byte(s) (65536 page(s)) at offset 0x00000000
BPI-R3>