我買的T113 核心板，使用spinand boot第一次可以啟動
但第二次啟動以後就會出現錯誤
我重新刷機燒錄spinand flash第一次可以啟動，可是重新上電後又出現 ubi0 error 訊息，就無法 mount ubifs
更新spi nand时候，一定要选择 全盘擦除。
spinand 全盘擦除，更新後，第一次啟動後dmesg 訊息如下， root filesystem 變成readonly ，無法寫入與建立目錄
cfg80211: Loading compiled-in X.509 certificates for regulatory database
cfg80211: Loaded X.509 cert 'sforshee: 00b28ddf47aef9cea7'
platform regulatory.0: Direct firmware load for regulatory.db failed with error -2
clk: Not disabling unused clocks
ALSA device list:
#0: audiocodec
alloc_fd: slot 0 not NULL!
cfg80211: failed to load regulatory.db
UBIFS (ubi0:5): Mounting in unauthenticated mode
UBIFS (ubi0:5): UBIFS: mounted UBI device 0, volume 5, name "rootfs", R/O mode
UBIFS (ubi0:5): LEB size: 258048 bytes (252 KiB), min./max. I/O unit sizes: 4096 bytes/4096 bytes
UBIFS (ubi0:5): FS size: 31223808 bytes (29 MiB, 121 LEBs), journal size 8515584 bytes (8 MiB, 33 LEBs)
UBIFS (ubi0:5): reserved for root: 0 bytes (0 KiB)
UBIFS (ubi0:5): media format: w4/r0 (latest is w5/r0), UUID B259D743-B373-44DA-A5B2-49A91A970AF9, small LPT model
VFS: Mounted root (ubifs filesystem) readonly on device 0:14.
devtmpfs: mounted
Freeing unused kernel memory: 1024K
Run /sbin/init as init process
SELinux: Could not open policy file <= /etc/selinux/targeted/policy/policy.33: No such file or directory
INIT: version booting
INIT: No inittab.d directory found
UBIFS (ubi0:5): start fixing up free space
UBIFS error (ubi0:5 pid 868): 0xc027fa10: invalid crc in LPT node: crc 365b calc fa5a
CPU: 0 PID: 868 Comm: mount Not tainted 5.4.61 #1
Hardware name: Generic DT based system
Function entered at [<c010bc18>] from [<c010939c>]
Function entered at [<c010939c>] from [<c05f3144>]
Function entered at [<c05f3144>] from [<c027fa14>]
Function entered at [<c027fa14>] from [<c027fb60>]
Function entered at [<c027fb60>] from [<c0280fc0>]
Function entered at [<c0280fc0>] from [<c0281104>]
Function entered at [<c0281104>] from [<c0270360>]
Function entered at [<c0270360>] from [<c026d4dc>]
Function entered at [<c026d4dc>] from [<c01bed8c>]
Function entered at [<c01bed8c>] from [<c01d83a0>]
Function entered at [<c01d83a0>] from [<c01d8a48>]
Function entered at [<c01d8a48>] from [<c0101000>]
Exception stack(0xc49a9fa8 to 0xc49a9ff0)
9fa0: 023df678 becc1b5c b6fd3b02 b6fd3b09 b6fd3b0b 00208020
9fc0: 023df678 becc1b5c b6ffa8d0 00000015 00000000 b6fd3d30 00000000 00000000
9fe0: b6e976e1 becc1a20 b6f56894 b6e976ea
UBIFS error (ubi0:5 pid 868): 0xc0280f40: error -22 reading pnode at 7:90
(pid 868) dumping pnode:
address c4910780 parent c4910600 cnext 0
flags 0 iip 1 level 0 num 0
0: free 0 dirty 2304 flags 0 lnum 0
1: free 0 dirty 344 flags 0 lnum 0
2: free 0 dirty 648 flags 0 lnum 0
3: free 0 dirty 33720 flags 1 lnum 0
CPU: 0 PID: 868 Comm: mount Not tainted 5.4.61 #1
Hardware name: Generic DT based system
Function entered at [<c010bc18>] from [<c010939c>]
Function entered at [<c010939c>] from [<c05f3144>]
Function entered at [<c05f3144>] from [<c0280f58>]
Function entered at [<c0280f58>] from [<c0281104>]
Function entered at [<c0281104>] from [<c0270360>]
Function entered at [<c0270360>] from [<c026d4dc>]
Function entered at [<c026d4dc>] from [<c01bed8c>]
Function entered at [<c01bed8c>] from [<c01d83a0>]
Function entered at [<c01d83a0>] from [<c01d8a48>]
Function entered at [<c01d8a48>] from [<c0101000>]
Exception stack(0xc49a9fa8 to 0xc49a9ff0)
9fa0: 023df678 becc1b5c b6fd3b02 b6fd3b09 b6fd3b0b 00208020
9fc0: 023df678 becc1b5c b6ffa8d0 00000015 00000000 b6fd3d30 00000000 00000000
9fe0: b6e976e1 becc1a20 b6f56894 b6e976ea
UBIFS error (ubi0:5 pid 868): 0xc0280f78: calc num: 5
mount: mounting ubi0_5 on / failed: Invalid argument
INIT: Entering runlevel: 3
Starting syslogd: OK
Starting klogd: OK
Running sysctl: OK
Populating /dev using udev: udevd[921]: starting version 3.2.11
udevd[922]: starting eudev-3.2.11
done
Starting adb mkdir: can't create directory '/system/': Read-only file system
mkdir: can't create directory '/system/': Read-only file system
ln: /system/bin/sh: No such file or directory
file system registered
install_listener('tcp:5037','*smartsocket*')
read descriptors
read strings
find: ./proc/985: No such file or directory
補充說明：
同樣的 img 我使用T113-PRO板子燒錄是ok的，使用 T113 核心板卻發生問題。
而T113-PRO板子使用的spinand是 W25N01GV，另外購買的核心板使用的是 MX35LF1GE4AB。不曉得是否有差異。
我这里看不出来问题，确认一下 是不是 你的 这款 flash 扇区大小 块 大小 和我们用的不一致导致的