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PCIE扫描挂载的外设失败的问题
发表于 2018-5-29 13:54:48
浏览：10397
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回复：3
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为了测试板子的PCIE 接口 我转接了一个 PCIE（switch）转接SATA3的转接板：
RK3399
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PCIE switch(PIC7C9x2g304sl)
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ASM1061 EJ168
问题：
内核启动时扫描到 switch 之后就先如何死循环（一直在重复的扫描自己），无法扫描到下面挂载的ASM1061（SATA）和EJ168（USB）设备，该怎么解决那？？？？？？？？？？
部分日志如下：
[ 1.776652] pci_scan_device:1637:start, devfn = 0x60.
[ 1.777117] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.778099] pci_scan_device:1637:start, devfn = 0x68.
[ 1.778552] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.779548] pci_scan_device:1637:start, devfn = 0x70.
[ 1.780013] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.781000] pci_scan_device:1637:start, devfn = 0x78.
[ 1.781453] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.782443] pci_scan_device:1637:start, devfn = 0x80.
[ 1.782908] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.783907] pci_scan_device:1637:start, devfn = 0x88.
[ 1.784360] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.785359] pci_scan_device:1637:start, devfn = 0x90.
[ 1.785823] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.786821] pci_scan_device:1637:start, devfn = 0x98.
[ 1.787274] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.788270] pci_scan_device:1637:start, devfn = 0xa0.
[ 1.788723] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.789722] pci_scan_device:1637:start, devfn = 0xa8.
[ 1.790187] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.791186] pci_1c:1c.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 1.936707] pci 0000:1c:1d.0: scanning [bus 00-00] behind bridge, pass 0
[ 1.937309] pci 0000:1c:1d.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 1.938026] pci 0000:1c:1e.0: scanning [bus 00-00] behind bridge, pass 0
[ 1.938620] pci 0000:1c:1e.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 1.939338] pci 0000:1c:1f.0: scanning [bus 00-00] behind bridge, pass 0
[ 1.939939] pci 0000:1c:1f.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 1.940649] pci 0000:1c:00.0: scanning [bus 00-00] behind bridge, pass 1
[ 1.941378] pci_scan_device:1637:start, devfn = 0x0.
[ 1.941830] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8.
[ 1.942832] pci 0000:1d:00.0: scanning [bus 1d-ff] behind bridge, pass 0
[ 1.943427] pci 0000:1d:00.0: bridge configuration invalid ([bus 1d-ff]), reconfiguring
[ 1.944146] pci 0000:1d:00.0: scanning [bus 00-00] behind bridge, pass 1
[ 1.944877] pci_scan_device:1637:start, devfn = 0x0.
[ 1.945319] pci_bus_read_dev_vendor_id:1594:PCI_VENDOR_ID = 0x230412d8. |
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