dump drm registers data:
1001d000 | 00000000 00000000 00000000 00000000
1001d010 | 00000000 00000000 00000000 00000000
1001d020 | 00000000 00000000 00000000 00000000
1001d030 | 00a003f1 000000ff 00100000 00000000
1001d040 | 00027e71 000200a0 00020303 000000ff
1001d050 | 00000000 00000000 00000000 00000000
1001d060 | 00000002 00000000 00000000 00000000
drm: 500 = 0xc
[DDR Reserve] ddr reserve mode not be enabled yet
DDR RESERVE Success 0
[EMI] ComboMCP not ready, using default setting
BYTE_swap:0
BYTE_swap:0
Window Sum 532, worse bit 4, min window 64
Window Sum 512, worse bit 8, min window 64
Window Sum 334, worse bit 3, min window 38
Window Sum 342, worse bit 9, min window 40
Window Sum 350, worse bit 3, min window 40
Window Sum 358, worse bit 8, min window 44
Window Sum 360, worse bit 3, min window 42
Window Sum 366, worse bit 12, min window 44
Window Sum 372, worse bit 3, min window 44
Window Sum 382, worse bit 8, min window 46
Window Sum 380, worse bit 3, min window 46
Window Sum 392, worse bit 9, min window 48
Window Sum 396, worse bit 3, min window 48
Window Sum 398, worse bit 9, min window 48
Window Sum 398, worse bit 3, min window 48
Window Sum 412, worse bit 9, min window 50
Window Sum 420, worse bit 3, min window 50
Window Sum 420, worse bit 14, min window 50
Window Sum 422, worse bit 3, min window 50
Window Sum 428, worse bit 9, min window 52
Window Sum 422, worse bit 0, min window 52
NOTICE: EMI: Detected DRAM size: 256MB
NOTICE: EMI: complex R/W mem test passed
NOTICE: CPU: MT7981 (1300MHz)
NOTICE: SPI_NAND parses attributes from parameter page.
NOTICE: SPI_NAND Detected ID 0xef
NOTICE: Page size 2048, Block size 131072, size 134217728
NOTICE: Initializing NMBM ...
NOTICE: Signature found at block 1023 [0x07fe0000]
NOTICE: First info table with writecount 0 found in block 976
NOTICE: Second info table with writecount 0 found in block 979
NOTICE: NMBM has been successfully attached in read-only mode
NOTICE: BL2: Booting BL31
NOTICE: BL31: v2.6(release):12dffbfc4a-dirty
NOTICE: BL31: Built : 05:20:26, Jul 15 2022
NOTICE: Hello BL31!!!
In: serial@11002000
Out: serial@11002000
Err: serial@11002000
Net: eth0: ethernet@15100000
detect button reset released!
Reading from 0x0 to 0x4f7fdd7c, size 0x4 ... OK
Boot failure detected on both systems
Reading from 0x0 to 0x4f7fdd7c, size 0x4 ... OK
Saving Environment to MTD... Erasing on MTD device 'nmbm0'... OK
Writing to MTD device 'nmbm0'... OK
OK
Booting System 1
ubi0: attaching mtd10
ubi0: scanning is finished
ubi0: attached mtd10 (name "ubi1", size 34 MiB)
ubi0: PEB size: 131072 bytes (128 KiB), LEB size: 126976 bytes
ubi0: min./max. I/O unit sizes: 2048/2048, sub-page size 2048
ubi0: VID header offset: 2048 (aligned 2048), data offset: 4096
ubi0: good PEBs: 272, bad PEBs: 0, corrupted PEBs: 0
ubi0: user volume: 0, internal volumes: 1, max. volumes count: 128
ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 0
ubi0: available PEBs: 248, total reserved PEBs: 24, PEBs reserved for bad PEB handling: 20
Reading from volume 'kernel' to 0x46000000, size 0x0 ... *** Cannot find volume 'kernel' ***
resetting ...