qingfengjuechen的专栏

1. PCIe相关的地址空间分配，在文档IMX8MPRM-i.MX 8M Plus Applications Processor Reference Manual (REV 0 )

endpoint side1.root@imx8mpevk:~# ls /sys/class/pci_epc/33800000.pcie_eproot@imx8mpevk:~# ls /sys/kernel/config/pci_ep/controllers33800000.pcie_eproot@imx8mpevk:~#root@imx8mpevk:~#root@imx8mpevk:~# ls /sys/bus/pci-epf/driverspci_epf_testroot@imx...

同样有人遇到这个问题：在/etc/exports文件中对应的rootfs文件夹参数设置中增加no_root_squash就OK了https://unix.stackexchange.com/questions/306793/unable-to-login-using-nfs-rootfs

root@imx8mpevk:~# U-Boot SPL 2020.04-5.4.70-2.3.0+ge42dee801e (Dec 04 2020 - 00:35:15 +0000)DDRINFO: start DRAM initDDRINFO: DRAM rate 4000MTSDDRINFO:ddrphy calibration doneDDRINFO: ddrmix config doneNormal BootTrying to boot from BOOTROMimage off.