Thanks very much ! I deployed a SD card succeeded regarding your suggestion .
But PCIE device can't be recognized ,
I tried command :
echo 1 > /sys/bus/pci/rescan ,
lspci ,
cat /proc/partitions
lsblk.
No PCIE device be found !
I checked the log of booting process , PCIE device can be detected :
PCIe1: pcie@3400000 Root Complex: no link
PCIe2: pcie@3500000 Root Complex: no link
PCIe3: pcie@3600000 Root Complex: x1 gen2
Below is one segment of the log after entered system:
NXP LSDK 2108 main (custom based on ubuntu 20.04)
localhost login: root
Password:
Welcome to NXP LSDK 2108 main (custom based on ubuntu 20.04) (GNU/Linux 5.10.35 aarch64)
* Support: https://www.nxp.com
* Licensing: https://lsdk.github.io/eula
Last login: Wed Jul 21 19:00:46 UTC 2021 on ttyS0
root@localhost:~# echo 1> /sys/bus/pci/rescan
root@localhost:~# lspci
root@localhost:~# cat /proc/partitions
major minor #blocks name
1 0 4096 ram0
1 1 4096 ram1
1 2 4096 ram2
1 3 4096 ram3
1 4 4096 ram4
1 5 4096 ram5
1 6 4096 ram6
1 7 4096 ram7
1 8 4096 ram8
1 9 4096 ram9
1 10 4096 ram10
1 11 4096 ram11
1 12 4096 ram12
1 13 4096 ram13
1 14 4096 ram14
1 15 4096 ram15
31 0 524288 mtdblock0
31 1 65536 mtdblock1
31 2 65536 mtdblock2
179 0 31260672 mmcblk0
179 1 65536 mmcblk0p1
179 2 1228800 mmcblk0p2
179 3 131072 mmcblk0p3
179 4 29762560 mmcblk0p4
Do you know how to solve this problem ? Thanks !!!