imx8 支持pcie endpoint
插上模块，输入以下命令：$ dmesg| grep pci$ lspci -v
MYZR-IMX8M-EK300输出以下信息：
root@myzr:~# dmesg| grep pci
[ 3.291149] ehci-pci: EHCI PCI platform driver
[ 3.314253] ohci-pci: OHCI PCI platform driver
[ 5.563865] imx6q-pcie 33800000.pcie: 33800000.pcie supply epdev_on not found, using dummy regulator
[ 5.572501] OF: PCI: host bridge /pcie@0x33800000 ranges:
[ 5.576752] OF: PCI: No bus range found for /pcie@0x33800000, using
[ 5.593555] imx6q-pcie 33800000.pcie: pcie phy pll is locked.
[ 5.842329] imx6q-pcie 33800000.pcie: phy link never came up
[ 5.846713] imx6q-pcie 33800000.pcie: failed to initialize host
[ 5.851339] imx6q-pcie 33800000.pcie: unable to add pcie port.
[ 5.856799] imx6q-pcie: probe of 33800000.pcie failed with error -110
[ 5.864915] imx6q-pcie 33c00000.pcie: 33c00000.pcie supply epdev_on not found, using dummy regulator
[ 5.873059] OF: PCI: host bridge /pcie@0x33c00000 ranges:
[ 5.877227] OF: PCI: No bus range found for /pcie@0x33c00000, using
[ 5.894067] imx6q-pcie 33c00000.pcie: pcie phy pll is locked.
[ 5.971961] imx6q-pcie 33c00000.pcie: Speed change timeout
[ 5.976153] imx6q-pcie 33c00000.pcie: Roll back to GEN1 link!
[ 5.980606] imx6q-pcie 33c00000.pcie: Link up, Gen1
[ 5.987200] imx6q-pcie 33c00000.pcie: PCI host bridge to bus 0000:00
[ 5.992283] pci_bus 0000:00: root bus resource
[ 5.996545] pci_bus 0000:00: root bus resource (bus address )
[ 6.004231] pci_bus 0000:00: root bus resource
[ 6.009932] pci 0000:00:00.0: type 01 class 0x060400
[ 6.009971] pci 0000:00:00.0: reg 0x10:
[ 6.009982] pci 0000:00:00.0: reg 0x38:
[ 6.010040] pci 0000:00:00.0: supports D1
[ 6.010048] pci 0000:00:00.0: PME# supported from D0 D1 D3hot D3cold
[ 6.010645] pci 0000:01:00.0: type 00 class 0x028000
[ 6.010784] pci 0000:01:00.0: reg 0x10:
[ 6.011224] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold
[ 6.022488] pci 0000:00:00.0: BAR 0: assigned
[ 6.028597] pci 0000:00:00.0: BAR 14: assigned
[ 6.034248] pci 0000:00:00.0: BAR 6: assigned
[ 6.040247] pci 0000:01:00.0: BAR 0: assigned
[ 6.046325] pci 0000:00:00.0: PCI bridge to
[ 6.050338] pci 0000:00:00.0: bridge window
[ 6.056721] pcieport 0000:00:00.0: Signaling PME with IRQ 271
[ 6.061499] pcieport 0000:00:00.0: AER enabled with IRQ 271
root@myzr:~# lspci -v
00:00.0 PCI bridge: Synopsys, Inc. Device abcd (rev 01) (prog-if 00 )
Flags: bus master, fast devsel, latency 0, IRQ 271
Memory at 20000000 (64-bit, non-prefetchable)
Bus: primary=00, secondary=01, subordinate=ff, sec-latency=0
Memory behind bridge: 20100000-201fffff
Expansion ROM at 20200000
Capabilities: Power Management version 3
Capabilities: MSI: Enable+ Count=1/1 Maskable+ 64bit+
Capabilities: Express Root Port (Slot-), MSI 00
Capabilities: Advanced Error Reporting
Capabilities: L1 PM Substates
Kernel driver in use: pcieport
01:00.0 Network controller: Intel Corporation PRO/Wireless 4965 AG or AGN Network Connection (rev 61)
Subsystem: Intel Corporation PRO/Wireless 4965 AG or AGN Network Connection
Flags: fast devsel
Memory at 20100000 (64-bit, non-prefetchable)
Capabilities: Power Management version 3
Capabilities: MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: Express Endpoint, MSI 00
Capabilities: Advanced Error Reporting
Capabilities: Device Serial Number 00-1f-3b-ff-ff-1c-b8-fd
root@imx8mqevk:~# dmesg |grep pci
[ 1.120315] ehci-pci: EHCI PCI platform driver
[ 1.143135] ohci-pci: OHCI PCI platform driver
[ 3.382686] imx6q-pcie 33800000.pcie: 33800000.pcie supply epdev_on not found, using dummy regulator
[ 3.391348] OF: PCI: host bridge /pcie@0x33800000 ranges:
[ 3.395460] OF: PCI: No bus range found for /pcie@0x33800000, using
[ 3.412224] imx6q-pcie 33800000.pcie: pcie phy pll is locked.
[ 3.490060] imx6q-pcie 33800000.pcie: Speed change timeout
[ 3.494249] imx6q-pcie 33800000.pcie: Roll back to GEN1 link!
[ 3.498700] imx6q-pcie 33800000.pcie: Link up, Gen1
[ 3.504883] imx6q-pcie 33800000.pcie: PCI host bridge to bus 0000:00
[ 3.509965] pci_bus 0000:00: root bus resource
[ 3.514218] pci_bus 0000:00: root bus resource
[ 3.519108] pci_bus 0000:00: root bus resource
[ 3.524774] pci 0000:00:00.0: type 01 class 0x060400
[ 3.524802] pci 0000:00:00.0: reg 0x10:
[ 3.524811] pci 0000:00:00.0: reg 0x38:
[ 3.524858] pci 0000:00:00.0: supports D1
[ 3.524864] pci 0000:00:00.0: PME# supported from D0 D1 D3hot D3cold
[ 3.525313] pci 0000:01:00.0: type 00 class 0x028000
[ 3.525470] pci 0000:01:00.0: reg 0x10:
[ 3.525924] pci 0000:01:00.0: PME# supported from D0 D3hot D3cold
[ 3.535389] pci 0000:00:00.0: BAR 0: assigned
[ 3.541528] pci 0000:00:00.0: BAR 14: assigned
[ 3.547116] pci 0000:00:00.0: BAR 6: assigned
[ 3.553110] pci 0000:01:00.0: BAR 0: assigned
[ 3.559173] pci 0000:00:00.0: PCI bridge to
[ 3.563166] pci 0000:00:00.0: bridge window
[ 3.569337] pcieport 0000:00:00.0: Signaling PME with IRQ 239
[ 3.574077] pcieport 0000:00:00.0: AER enabled with IRQ 239
[ 3.579763] imx6q-pcie 33c00000.pcie: 33c00000.pcie supply epdev_on not found, using dummy regulator
[ 3.587962] OF: PCI: host bridge /pcie@0x33c00000 ranges:
[ 3.592134] OF: PCI: No bus range found for /pcie@0x33c00000, using
[ 3.609141] imx6q-pcie 33c00000.pcie: pcie phy pll is locked.
[ 3.857765] imx6q-pcie 33c00000.pcie: phy link never came up
[ 3.862147] imx6q-pcie 33c00000.pcie: failed to initialize host
[ 3.866777] imx6q-pcie 33c00000.pcie: unable to add pcie port.
[ 3.872123] imx6q-pcie: probe of 33c00000.pcie failed with error -110
lspci -v
00:00.0 PCI bridge: Synopsys, Inc. Device abcd (rev 01) (prog-if 00 )
Flags: bus master, fast devsel, latency 0, IRQ 239
Memory at 18000000 (64-bit, non-prefetchable)
Bus: primary=00, secondary=01, subordinate=ff, sec-latency=0
I/O behind bridge: None
Memory behind bridge: 18100000-181fffff
Prefetchable memory behind bridge: None
Expansion ROM at 18200000
Capabilities: Power Management version 3
Capabilities: MSI: Enable+ Count=1/1 Maskable+ 64bit+
Capabilities: Express Root Port (Slot-), MSI 00
Capabilities: Advanced Error Reporting
Capabilities: L1 PM Substates
Kernel driver in use: pcieport
01:00.0 Network controller: Intel Corporation Wireless 7260 (rev bb)
Subsystem: Intel Corporation Dual Band Wireless-AC 7260
Flags: fast devsel
Memory at 18100000 (64-bit, non-prefetchable)
Capabilities: Power Management version 3
Capabilities: MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: Express Endpoint, MSI 00
Capabilities: Advanced Error Reporting
Capabilities: Device Serial Number 00-16-6f-ff-ff-e7-02-d9
Capabilities: Latency Tolerance Reporting
Capabilities: Vendor Specific Information: ID=cafe Rev=1 Len=014 <?>
请问我这个是成功了还是失败了？？？ Cupid天空 发表于 2022-2-8 11:15
root@imx8mqevk:~# dmesg |grep pci
[ 1.120315] ehci-pci: EHCI PCI platform driver
[ 1.143135] o ...
嗯，检测到了，加WIFI驱动试试
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