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kernel启动的打印信息

[    0.604899] dra7-pcie 51000000.pcie_rc: GPIO lookup for consumer (null)      
[    0.604912] dra7-pcie 51000000.pcie_rc: using device tree for GPIO lookup    
[    0.604943] of_get_named_gpiod_flags: parsed 'gpios' property of node '/ocp/a
xi@0/pcie_rc@51000000[0]' – status (0)                                          
[    0.605065] PCI host bridge /ocp/axi@0/pcie_rc@51000000 ranges:              
[    0.605076]   No bus range found for /ocp/axi@0/pcie_rc@51000000, using [bus00-ff]                                                                          
[    0.635684] dra7-pcie 51000000.pcie_rc: link is not up                       
[    0.635848] dra7-pcie 51000000.pcie_rc: PCI host bridge to bus 0000:00       
[    0.635861] pci_bus 0000:00: root bus resource [bus 00-ff]                   
[    0.635872] pci_bus 0000:00: root bus resource [io  0x0000-0xffff]           
[    0.635882] pci_bus 0000:00: root bus resource [mem 0x20013000-0x2fffffff]   
[    0.635922] pci 0000:00:00.0: [104c:8888] type 01 class 0x060400             
[    0.635985] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x000fffff]          
[    0.636020] pci 0000:00:00.0: reg 0x14: [mem 0x00000000-0x0000ffff]          
[    0.636098] pci 0000:00:00.0: supports D1                                    
[    0.636108] pci 0000:00:00.0: PME# supported from D0 D1 D3hot                
[    0.636517] pci 0000:00:00.0: BAR 0: assigned [mem 0x20100000-0x201fffff]    
[    0.636533] pci 0000:00:00.0: BAR 1: assigned [mem 0x20020000-0x2002ffff]    
[    0.636546] pci 0000:00:00.0: PCI bridge to [bus 01]                         
[    0.636848] pcieport 0000:00:00.0: Signaling PME through PCIe PME interrupt  
[    0.636863] pcie_pme 0000:00:00.0:pcie01: service driver pcie_pme loaded   

[    0.637318] dra7-pcie 51800000.pcie_rc: probe deferral not supported

dra7-pcie 51800000.pcie_rc不能用吗?网上说platform会对设备树中的每一个设备进行probe,这是失败了,怎么解决这种问题?请大家帮个忙,谢谢。

Jian Zhou:

请问你是在AM5728的板子上测试的么?

lu Cao2:

回复 Jian Zhou:

是am5726

Denny%20Yang99373:

硬件是什么情况?接入FPGA了?

lu Cao2:

回复 Denny%20Yang99373:

没有FPGA,修改一下设备树,是可以启动的第二路pcie了。

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