BPI R4 doesnt detect 2nd PCI card [solved]

Banana Pi Router design BPI-R4(MT7988)
1

probably related to the config overlay: I have a bananapi R4, I installed @dangowrt 's openwrt bpi version, and installed 3 wifi pci cards:

  • 1 ath10k qca988x in mpci slot 1
  • 1 mt7915 in mpci slot 2
  • 1 ath11k using a m.2 adapter in the nvme slot. the issue is: I’m missing a PCI card, the kernel says its PCIe link status is down:
[    2.281790] phy phy-soc:[email protected]: type_sw - reg 0x218, index 0
[    2.288808] mtk-pcie-gen3 11280000.pcie: host bridge /soc/pcie@11280000 ranges:
[    2.296120] mtk-pcie-gen3 11280000.pcie: Parsing ranges property...
[    2.302388] mtk-pcie-gen3 11280000.pcie:       IO 0x0020000000..0x00201fffff -> 0x0020000000
[    2.310821] mtk-pcie-gen3 11280000.pcie:      MEM 0x0020200000..0x0027ffffff -> 0x0020200000
[    2.331228] mmc0: host does not support reading read-only switch, assuming write-enable
[    2.341031] mmc0: new high speed SDXC card at address 2103
[    2.347050] mmcblk0: mmc0:2103 APPSD 999 GiB 
[    2.354847] Alternate GPT is invalid, using primary GPT.
[    2.360671]  mmcblk0: p1 p2 p3 p4 p5 p6 p7
[    2.657215] mtk-pcie-gen3 11280000.pcie: PCIe link down, current LTSSM state: detect.quiet (0x0)
[    2.666014] mtk-pcie-gen3: probe of 11280000.pcie failed with error -110
[    2.673059] mtk-pcie-gen3 11290000.pcie: host bridge /soc/pcie@11290000 ranges:
[    2.680374] mtk-pcie-gen3 11290000.pcie: Parsing ranges property...
[    2.686637] mtk-pcie-gen3 11290000.pcie:       IO 0x0028000000..0x00281fffff -> 0x0028000000
[    2.695074] mtk-pcie-gen3 11290000.pcie:      MEM 0x0028200000..0x002fffffff -> 0x0028200000
[    2.954801] mtk-pcie-gen3 11290000.pcie: set IO trans window[0]: cpu_addr = 0x28000000, pci_addr = 0x28000000, size = 0x200000
[    2.966183] mtk-pcie-gen3 11290000.pcie: set MEM trans window[1]: cpu_addr = 0x28200000, pci_addr = 0x28200000, size = 0x200000
[    2.977647] mtk-pcie-gen3 11290000.pcie: set MEM trans window[2]: cpu_addr = 0x28400000, pci_addr = 0x28400000, size = 0x400000
[    2.989110] mtk-pcie-gen3 11290000.pcie: set MEM trans window[3]: cpu_addr = 0x28800000, pci_addr = 0x28800000, size = 0x800000
[    3.000572] mtk-pcie-gen3 11290000.pcie: set MEM trans window[4]: cpu_addr = 0x29000000, pci_addr = 0x29000000, size = 0x1000000
[    3.012122] mtk-pcie-gen3 11290000.pcie: set MEM trans window[5]: cpu_addr = 0x2a000000, pci_addr = 0x2a000000, size = 0x2000000
[    3.023670] mtk-pcie-gen3 11290000.pcie: set MEM trans window[6]: cpu_addr = 0x2c000000, pci_addr = 0x2c000000, size = 0x4000000
[    3.035333] mtk-pcie-gen3 11290000.pcie: PCI host bridge to bus 0002:00
[    3.041941] pci_bus 0002:00: root bus resource [bus 00-ff]
[    3.047424] pci_bus 0002:00: root bus resource [io  0x200000-0x3fffff] (bus address [0x28000000-0x281fffff])
[    3.057242] pci_bus 0002:00: root bus resource [mem 0x28200000-0x2fffffff]
[    3.064104] pci_bus 0002:00: scanning bus
[    3.068125] pci 0002:00:00.0: [14c3:7988] type 01 class 0x060400
[    3.074132] pci 0002:00:00.0: reg 0x10: [mem 0x00000000-0x00007fff 64bit]
[    3.080970] pci 0002:00:00.0: PME# supported from D0 D3hot D3cold
[    3.087053] pci 0002:00:00.0: PME# disabled
[    3.092351] pci_bus 0002:00: fixups for bus
[    3.096527] pci 0002:00:00.0: scanning [bus 00-00] behind bridge, pass 0
[    3.103220] pci 0002:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[    3.111219] pci 0002:00:00.0: scanning [bus 00-00] behind bridge, pass 1
[    3.117954] pci_bus 0002:01: scanning bus
[    3.121972] pci 0002:01:00.0: [17cb:1103] type 00 class 0x028000
[    3.127989] pci 0002:01:00.0: reg 0x10: [mem 0x00000000-0x001fffff 64bit]
[    3.134882] pci 0002:01:00.0: PME# supported from D0 D3hot D3cold
[    3.140969] pci 0002:01:00.0: PME# disabled
[    3.167229] pci_bus 0002:01: fixups for bus
[    3.171402] pci_bus 0002:01: bus scan returning with max=01
[    3.176962] pci_bus 0002:01: busn_res: [bus 01-ff] end is updated to 01
[    3.183573] pci_bus 0002:00: bus scan returning with max=01
[    3.189145] pci 0002:00:00.0: BAR 8: assigned [mem 0x28200000-0x283fffff]
[    3.195922] pci 0002:00:00.0: BAR 0: assigned [mem 0x28400000-0x28407fff 64bit]
[    3.203227] pci 0002:01:00.0: BAR 0: assigned [mem 0x28200000-0x283fffff 64bit]
[    3.210533] pci 0002:00:00.0: PCI bridge to [bus 01]
[    3.215487] pci 0002:00:00.0:   bridge window [mem 0x28200000-0x283fffff]
[    3.222275] pci 0002:00:00.0: Max Payload Size set to  256/ 256 (was  128), Max Read Rq  256
[    3.230715] pci 0002:01:00.0: Max Payload Size set to  128/ 128 (was  128), Max Read Rq  128
[    3.239206] pcieport 0002:00:00.0: assign IRQ: got 110
[    3.244337] pcieport 0002:00:00.0: enabling device (0000 -> 0002)
[    3.250430] pcieport 0002:00:00.0: enabling bus mastering
[    3.256079] mtk-pcie-gen3 11290000.pcie: msi#0x0 address_hi 0x0 address_lo 0x11290c00 data 0
[    3.264512] mtk-pcie-gen3 11290000.pcie: msi#0x1 address_hi 0x0 address_lo 0x11290c00 data 1
[    3.272938] mtk-pcie-gen3 11290000.pcie: msi#0x2 address_hi 0x0 address_lo 0x11290c00 data 2
[    3.281362] mtk-pcie-gen3 11290000.pcie: msi#0x3 address_hi 0x0 address_lo 0x11290c00 data 3
[    3.289793] mtk-pcie-gen3 11290000.pcie: msi#0x4 address_hi 0x0 address_lo 0x11290c00 data 4
[    3.298218] mtk-pcie-gen3 11290000.pcie: msi#0x5 address_hi 0x0 address_lo 0x11290c00 data 5
[    3.306641] mtk-pcie-gen3 11290000.pcie: msi#0x6 address_hi 0x0 address_lo 0x11290c00 data 6
[    3.315066] mtk-pcie-gen3 11290000.pcie: msi#0x7 address_hi 0x0 address_lo 0x11290c00 data 7
[    3.323490] mtk-pcie-gen3 11290000.pcie: msi#0x8 address_hi 0x0 address_lo 0x11290c00 data 8
[    3.331915] mtk-pcie-gen3 11290000.pcie: msi#0x9 address_hi 0x0 address_lo 0x11290c00 data 9
[    3.340339] mtk-pcie-gen3 11290000.pcie: msi#0xa address_hi 0x0 address_lo 0x11290c00 data 10
[    3.348851] mtk-pcie-gen3 11290000.pcie: msi#0xb address_hi 0x0 address_lo 0x11290c00 data 11
[    3.357362] mtk-pcie-gen3 11290000.pcie: msi#0xc address_hi 0x0 address_lo 0x11290c00 data 12
[    3.365871] mtk-pcie-gen3 11290000.pcie: msi#0xd address_hi 0x0 address_lo 0x11290c00 data 13
[    3.374382] mtk-pcie-gen3 11290000.pcie: msi#0xe address_hi 0x0 address_lo 0x11290c00 data 14
[    3.382894] mtk-pcie-gen3 11290000.pcie: msi#0xf address_hi 0x0 address_lo 0x11290c00 data 15
[    3.391405] mtk-pcie-gen3 11290000.pcie: msi#0x10 address_hi 0x0 address_lo 0x11290c00 data 16
[    3.400003] mtk-pcie-gen3 11290000.pcie: msi#0x11 address_hi 0x0 address_lo 0x11290c00 data 17
[    3.408603] mtk-pcie-gen3 11290000.pcie: msi#0x12 address_hi 0x0 address_lo 0x11290c00 data 18
[    3.417201] mtk-pcie-gen3 11290000.pcie: msi#0x13 address_hi 0x0 address_lo 0x11290c00 data 19
[    3.425797] mtk-pcie-gen3 11290000.pcie: msi#0x14 address_hi 0x0 address_lo 0x11290c00 data 20
[    3.434394] mtk-pcie-gen3 11290000.pcie: msi#0x15 address_hi 0x0 address_lo 0x11290c00 data 21
[    3.442991] mtk-pcie-gen3 11290000.pcie: msi#0x16 address_hi 0x0 address_lo 0x11290c00 data 22
[    3.451590] mtk-pcie-gen3 11290000.pcie: msi#0x17 address_hi 0x0 address_lo 0x11290c00 data 23
[    3.460188] mtk-pcie-gen3 11290000.pcie: msi#0x18 address_hi 0x0 address_lo 0x11290c00 data 24
[    3.468786] mtk-pcie-gen3 11290000.pcie: msi#0x19 address_hi 0x0 address_lo 0x11290c00 data 25
[    3.477384] mtk-pcie-gen3 11290000.pcie: msi#0x1a address_hi 0x0 address_lo 0x11290c00 data 26
[    3.485980] mtk-pcie-gen3 11290000.pcie: msi#0x1b address_hi 0x0 address_lo 0x11290c00 data 27
[    3.494578] mtk-pcie-gen3 11290000.pcie: msi#0x1c address_hi 0x0 address_lo 0x11290c00 data 28
[    3.503176] mtk-pcie-gen3 11290000.pcie: msi#0x1d address_hi 0x0 address_lo 0x11290c00 data 29
[    3.511774] mtk-pcie-gen3 11290000.pcie: msi#0x1e address_hi 0x0 address_lo 0x11290c00 data 30
[    3.520372] mtk-pcie-gen3 11290000.pcie: msi#0x1f address_hi 0x0 address_lo 0x11290c00 data 31
[    3.529268] mtk-pcie-gen3 11290000.pcie: msi#0x0 address_hi 0x0 address_lo 0x11290c00 data 0
[    3.537759] pcieport 0002:00:00.0: PME: Signaling with IRQ 111
[    3.543689] pcieport 0002:00:00.0: AER: enabled with IRQ 111
[    3.549389] pcieport 0002:00:00.0: saving config space at offset 0x0 (reading 0x798814c3)
[    3.557561] pcieport 0002:00:00.0: saving config space at offset 0x4 (reading 0x100406)
[    3.565550] pcieport 0002:00:00.0: saving config space at offset 0x8 (reading 0x6040001)
[    3.573630] pcieport 0002:00:00.0: saving config space at offset 0xc (reading 0x10000)
[    3.581536] pcieport 0002:00:00.0: saving config space at offset 0x10 (reading 0x28400004)
[    3.589791] pcieport 0002:00:00.0: saving config space at offset 0x14 (reading 0x0)
[    3.597436] pcieport 0002:00:00.0: saving config space at offset 0x18 (reading 0x10100)
[    3.605425] pcieport 0002:00:00.0: saving config space at offset 0x1c (reading 0x1f1)
[    3.613244] pcieport 0002:00:00.0: saving config space at offset 0x20 (reading 0x28302820)
[    3.621497] pcieport 0002:00:00.0: saving config space at offset 0x24 (reading 0x1fff1)
[    3.629488] pcieport 0002:00:00.0: saving config space at offset 0x28 (reading 0x0)
[    3.637130] pcieport 0002:00:00.0: saving config space at offset 0x2c (reading 0x0)
[    3.644775] pcieport 0002:00:00.0: saving config space at offset 0x30 (reading 0x0)
[    3.652420] pcieport 0002:00:00.0: saving config space at offset 0x34 (reading 0x80)
[    3.660153] pcieport 0002:00:00.0: saving config space at offset 0x38 (reading 0x0)
[    3.667799] pcieport 0002:00:00.0: saving config space at offset 0x3c (reading 0x2016e)
[    3.676057] mtk-pcie-gen3 11300000.pcie: host bridge /soc/pcie@11300000 ranges:
[    3.683367] mtk-pcie-gen3 11300000.pcie: Parsing ranges property...
[    3.689634] mtk-pcie-gen3 11300000.pcie:       IO 0x0030000000..0x00301fffff -> 0x0030000000
[    3.698067] mtk-pcie-gen3 11300000.pcie:      MEM 0x0030200000..0x0037ffffff -> 0x0030200000
[    3.939877] mtk-pcie-gen3 11300000.pcie: set IO trans window[0]: cpu_addr = 0x30000000, pci_addr = 0x30000000, size = 0x200000
[    3.951260] mtk-pcie-gen3 11300000.pcie: set MEM trans window[1]: cpu_addr = 0x30200000, pci_addr = 0x30200000, size = 0x200000
[    3.962724] mtk-pcie-gen3 11300000.pcie: set MEM trans window[2]: cpu_addr = 0x30400000, pci_addr = 0x30400000, size = 0x400000
[    3.974186] mtk-pcie-gen3 11300000.pcie: set MEM trans window[3]: cpu_addr = 0x30800000, pci_addr = 0x30800000, size = 0x800000
[    3.985648] mtk-pcie-gen3 11300000.pcie: set MEM trans window[4]: cpu_addr = 0x31000000, pci_addr = 0x31000000, size = 0x1000000
[    3.997197] mtk-pcie-gen3 11300000.pcie: set MEM trans window[5]: cpu_addr = 0x32000000, pci_addr = 0x32000000, size = 0x2000000
[    4.008751] mtk-pcie-gen3 11300000.pcie: set MEM trans window[6]: cpu_addr = 0x34000000, pci_addr = 0x34000000, size = 0x4000000
[    4.020401] mtk-pcie-gen3 11300000.pcie: PCI host bridge to bus 0000:00
[    4.027006] pci_bus 0000:00: root bus resource [bus 00-ff]
[    4.032487] pci_bus 0000:00: root bus resource [io  0x400000-0x5fffff] (bus address [0x30000000-0x301fffff])
[    4.042301] pci_bus 0000:00: root bus resource [mem 0x30200000-0x37ffffff]
[    4.049166] pci_bus 0000:00: scanning bus
[    4.053184] pci 0000:00:00.0: [14c3:7988] type 01 class 0x060400
[    4.059197] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x00007fff 64bit]
[    4.066031] pci 0000:00:00.0: PME# supported from D0 D3hot D3cold
[    4.072117] pci 0000:00:00.0: PME# disabled
[    4.077407] pci_bus 0000:00: fixups for bus
[    4.081582] pci 0000:00:00.0: scanning [bus 00-00] behind bridge, pass 0
[    4.088274] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[    4.096269] pci 0000:00:00.0: scanning [bus 00-00] behind bridge, pass 1
[    4.103007] pci_bus 0000:01: scanning bus
[    4.107028] pci 0000:01:00.0: [14c3:7915] type 00 class 0x000280
[    4.113051] pci 0000:01:00.0: reg 0x10: [mem 0x00000000-0x000fffff 64bit pref]
[    4.120278] pci 0000:01:00.0: reg 0x18: [mem 0x00000000-0x00003fff 64bit pref]
[    4.127505] pci 0000:01:00.0: reg 0x20: [mem 0x00000000-0x00000fff 64bit pref]
[    4.134817] pci 0000:01:00.0: supports D1 D2
[    4.139078] pci 0000:01:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    4.145682] pci 0000:01:00.0: PME# disabled
[    4.177231] pci_bus 0000:01: fixups for bus
[    4.181404] pci_bus 0000:01: bus scan returning with max=01
[    4.186966] pci_bus 0000:01: busn_res: [bus 01-ff] end is updated to 01
[    4.193577] pci_bus 0000:00: bus scan returning with max=01
[    4.199151] pci 0000:00:00.0: BAR 9: assigned [mem 0x30200000-0x303fffff 64bit pref]
[    4.206882] pci 0000:00:00.0: BAR 0: assigned [mem 0x30400000-0x30407fff 64bit]
[    4.214187] pci 0000:01:00.0: BAR 0: assigned [mem 0x30200000-0x302fffff 64bit pref]
[    4.221930] pci 0000:01:00.0: BAR 2: assigned [mem 0x30300000-0x30303fff 64bit pref]
[    4.229674] pci 0000:01:00.0: BAR 4: assigned [mem 0x30304000-0x30304fff 64bit pref]
[    4.237416] pci 0000:00:00.0: PCI bridge to [bus 01]
[    4.242372] pci 0000:00:00.0:   bridge window [mem 0x30200000-0x303fffff 64bit pref]
[    4.250113] pci 0000:00:00.0: Max Payload Size set to  256/ 256 (was  128), Max Read Rq  256
[    4.258556] pci 0000:01:00.0: Max Payload Size set to  128/ 128 (was  128), Max Read Rq  128
[    4.267045] pcieport 0000:00:00.0: assign IRQ: got 113
[    4.272179] pcieport 0000:00:00.0: enabling device (0000 -> 0002)
[    4.278272] pcieport 0000:00:00.0: enabling bus mastering
[    4.283903] mtk-pcie-gen3 11300000.pcie: msi#0x0 address_hi 0x0 address_lo 0x11300c00 data 0
[    4.292336] mtk-pcie-gen3 11300000.pcie: msi#0x1 address_hi 0x0 address_lo 0x11300c00 data 1
[    4.300765] mtk-pcie-gen3 11300000.pcie: msi#0x2 address_hi 0x0 address_lo 0x11300c00 data 2
[    4.309190] mtk-pcie-gen3 11300000.pcie: msi#0x3 address_hi 0x0 address_lo 0x11300c00 data 3
[    4.317616] mtk-pcie-gen3 11300000.pcie: msi#0x4 address_hi 0x0 address_lo 0x11300c00 data 4
[    4.326038] mtk-pcie-gen3 11300000.pcie: msi#0x5 address_hi 0x0 address_lo 0x11300c00 data 5
[    4.334462] mtk-pcie-gen3 11300000.pcie: msi#0x6 address_hi 0x0 address_lo 0x11300c00 data 6
[    4.342887] mtk-pcie-gen3 11300000.pcie: msi#0x7 address_hi 0x0 address_lo 0x11300c00 data 7
[    4.351311] mtk-pcie-gen3 11300000.pcie: msi#0x8 address_hi 0x0 address_lo 0x11300c00 data 8
[    4.359736] mtk-pcie-gen3 11300000.pcie: msi#0x9 address_hi 0x0 address_lo 0x11300c00 data 9
[    4.368160] mtk-pcie-gen3 11300000.pcie: msi#0xa address_hi 0x0 address_lo 0x11300c00 data 10
[    4.376670] mtk-pcie-gen3 11300000.pcie: msi#0xb address_hi 0x0 address_lo 0x11300c00 data 11
[    4.385180] mtk-pcie-gen3 11300000.pcie: msi#0xc address_hi 0x0 address_lo 0x11300c00 data 12
[    4.393691] mtk-pcie-gen3 11300000.pcie: msi#0xd address_hi 0x0 address_lo 0x11300c00 data 13
[    4.402202] mtk-pcie-gen3 11300000.pcie: msi#0xe address_hi 0x0 address_lo 0x11300c00 data 14
[    4.410713] mtk-pcie-gen3 11300000.pcie: msi#0xf address_hi 0x0 address_lo 0x11300c00 data 15
[    4.419225] mtk-pcie-gen3 11300000.pcie: msi#0x10 address_hi 0x0 address_lo 0x11300c00 data 16
[    4.427824] mtk-pcie-gen3 11300000.pcie: msi#0x11 address_hi 0x0 address_lo 0x11300c00 data 17
[    4.436420] mtk-pcie-gen3 11300000.pcie: msi#0x12 address_hi 0x0 address_lo 0x11300c00 data 18
[    4.445018] mtk-pcie-gen3 11300000.pcie: msi#0x13 address_hi 0x0 address_lo 0x11300c00 data 19
[    4.453616] mtk-pcie-gen3 11300000.pcie: msi#0x14 address_hi 0x0 address_lo 0x11300c00 data 20
[    4.462214] mtk-pcie-gen3 11300000.pcie: msi#0x15 address_hi 0x0 address_lo 0x11300c00 data 21
[    4.470812] mtk-pcie-gen3 11300000.pcie: msi#0x16 address_hi 0x0 address_lo 0x11300c00 data 22
[    4.479411] mtk-pcie-gen3 11300000.pcie: msi#0x17 address_hi 0x0 address_lo 0x11300c00 data 23
[    4.488009] mtk-pcie-gen3 11300000.pcie: msi#0x18 address_hi 0x0 address_lo 0x11300c00 data 24
[    4.496605] mtk-pcie-gen3 11300000.pcie: msi#0x19 address_hi 0x0 address_lo 0x11300c00 data 25
[    4.505203] mtk-pcie-gen3 11300000.pcie: msi#0x1a address_hi 0x0 address_lo 0x11300c00 data 26
[    4.513801] mtk-pcie-gen3 11300000.pcie: msi#0x1b address_hi 0x0 address_lo 0x11300c00 data 27
[    4.522399] mtk-pcie-gen3 11300000.pcie: msi#0x1c address_hi 0x0 address_lo 0x11300c00 data 28
[    4.530998] mtk-pcie-gen3 11300000.pcie: msi#0x1d address_hi 0x0 address_lo 0x11300c00 data 29
[    4.539597] mtk-pcie-gen3 11300000.pcie: msi#0x1e address_hi 0x0 address_lo 0x11300c00 data 30
[    4.548196] mtk-pcie-gen3 11300000.pcie: msi#0x1f address_hi 0x0 address_lo 0x11300c00 data 31
[    4.557085] mtk-pcie-gen3 11300000.pcie: msi#0x0 address_hi 0x0 address_lo 0x11300c00 data 0
[    4.565572] pcieport 0000:00:00.0: PME: Signaling with IRQ 114
[    4.571499] pcieport 0000:00:00.0: AER: enabled with IRQ 114
[    4.577193] pcieport 0000:00:00.0: saving config space at offset 0x0 (reading 0x798814c3)
[    4.585358] pcieport 0000:00:00.0: saving config space at offset 0x4 (reading 0x100406)
[    4.593360] pcieport 0000:00:00.0: saving config space at offset 0x8 (reading 0x6040001)
[    4.601440] pcieport 0000:00:00.0: saving config space at offset 0xc (reading 0x10000)
[    4.609349] pcieport 0000:00:00.0: saving config space at offset 0x10 (reading 0x30400004)
[    4.617602] pcieport 0000:00:00.0: saving config space at offset 0x14 (reading 0x0)
[    4.625245] pcieport 0000:00:00.0: saving config space at offset 0x18 (reading 0x10100)
[    4.633237] pcieport 0000:00:00.0: saving config space at offset 0x1c (reading 0x1f1)
[    4.641055] pcieport 0000:00:00.0: saving config space at offset 0x20 (reading 0xfff0)
[    4.648960] pcieport 0000:00:00.0: saving config space at offset 0x24 (reading 0x30313021)
[    4.657212] pcieport 0000:00:00.0: saving config space at offset 0x28 (reading 0x0)
[    4.664853] pcieport 0000:00:00.0: saving config space at offset 0x2c (reading 0x0)
[    4.672497] pcieport 0000:00:00.0: saving config space at offset 0x30 (reading 0x0)
[    4.680142] pcieport 0000:00:00.0: saving config space at offset 0x34 (reading 0x80)
[    4.687875] pcieport 0000:00:00.0: saving config space at offset 0x38 (reading 0x0)
[    4.695518] pcieport 0000:00:00.0: saving config space at offset 0x3c (reading 0x20171)
[    4.703804] mtk-pcie-gen3 11310000.pcie: host bridge /soc/pcie@11310000 ranges:
[    4.711112] mtk-pcie-gen3 11310000.pcie: Parsing ranges property...
[    4.717379] mtk-pcie-gen3 11310000.pcie:       IO 0x0038000000..0x00381fffff -> 0x0038000000
[    4.725809] mtk-pcie-gen3 11310000.pcie:      MEM 0x0038200000..0x003fffffff -> 0x0038200000
[    5.067207] mtk-pcie-gen3 11310000.pcie: PCIe link down, current LTSSM state: detect.quiet (0x1)
[    5.075990] mtk-pcie-gen3: probe of 11310000.pcie failed with error -110

so, as you can see here, 2 devices (the one @ nvme slot and at pci slot 2) are detected, but I’m missing the one at pci slot 1. I assume this is due to fdt overlays being applied ignoring the link state of 2nd pci slot, but how do I force it?

EDIT: tried with a 2nd card, no result either also tried by removing the wifi FDT overlay, but it didn’t change anything, so I assume the pcie link status detection is wrong …

EDIT: closing topic, seems unfixable hardware issue of bpi boards not providing electrical requirements for many intel/atheros chips. Ordered a mt7916. We’ll see how it turns out

2

The most important point here is to switch off the 12V power (SW4) on the mPCIe sockets which is intended for use with SinoVoip’s upcoming MT7996 module(s).

The wifi dt-overlay makes sure the 12V power is enabled in software as well as assigning the I2C EEPROMs to be used as storage for MAC addresses for the inserted WiFi module. Both should not matter to other cards as long as SW4 is in OFF position.

With the MT7996 module I can see both busses of both slots working (pcie@11300000 and pcie@11310000 are the two PCIe x2 for the mPCIe slots on the bottom), so what ever problem you are facing is somehow specific to the card you are using.

3

interesting, thanks for your clarification! So far, the 3 modules I used are all ath10k:

  • WPEA-352ACNRB
  • WPEQ-256ACN
  • WLE1216V5-20

Do you think it might be related to something atheros specific?

EDIT: @dangowrt : I see 2 different errors here when detecting the pci link:

  1. the light-weight 9880 chip gets:
[    5.067259] mtk-pcie-gen3 11310000.pcie: PCIe link down, current LTSSM state: detect.quiet (0x1)
[    5.076041] mtk-pcie-gen3: probe of 11310000.pcie failed with error -110
  1. the heavy 9884 chip gets:
[    5.057249] mtk-pcie-gen3 11310000.pcie: PCIe link down, current LTSSM state: polling.compliance (0x3000003)
[    5.067074] mtk-pcie-gen3: probe of 11310000.pcie failed with error -110

Does that tell you something?

4

Do both cards work on the other mPCIe socket 2L interfaces (at 0x11300000)?

5

nope, none of them.

But the ath11k adapter using a mpci->m.2 chip does.

So, while it looks weird, do I need to consider all 3 ath10k mpci cards to be broken?

6

No, I don’t think the cards are broken. It can be, however, that the PCIe host weirdly rejects them because they only use one out of two available lanes. It shouldn’t do that obviously and I will also try a single lane mPCIe card later today.

7

I also tested mt7615 in both pci slots (of course sw4 off) and they worked,so nothing specific to the bpi wifi board. But atheros cards had some issues in past with bpi boards (because of missing capacitors or resistors).

8

Does this impact all cards? Or only 988x based chips?

9

I do not know,but r64 had some issues with some cards. Afaik there are no reports for r3/r4 yet.

10

and I assume a workaround isn’t possible if it’s due to missing capacitors …

do I need to add these cards to the wiki as “cards that are not bpi r4 compatible”? Or could there be some options so it can be brought alive after all (eg due to kernel using some pci quirks)?

11

I do not know if it is same issue on r3/r4 as i have not tried these cards yet. And solution for r64 was adding these capacitors/resistors

12

can I, based on a card’s datasheet, decide whether it will work or not? a sparklan 269ax ath11 card (ising mpcie->m.2 adapter) got detected, so is there some technical documentation about when it works and when it does not? if it’s the same issue compared to bpi r64, I may simply try to buy another mpcie card based on that documentation

13

Maybe @simon can help here (after chinese ney year). I’m not that deep into these parts.

14

i also had such a problem with 3 cards, 2 atheros (ath10k, ath9k) and 1 intel. none worked (was not recognized). now i bought a card that frank-w recommended me (Mediatek MTK MT7615 Minipci-express 802.11AC DBDC WIFI 5 Linux OpenWRT DD-WRT | eBay) and it works like a charm. its crazy… maybe you have the same problem?

btw. in my clearfog pro, all of those cards worked like a charm.

15

So it looks like mediatek cards work, and some other cards might, but we don’t know. Let’s hope it can be documented one day

16

Hi jpsollie,

Do you have links to these cards? I’ll try to buy and test it

17

I bought the ath10k cards at 524wifi.eu, so if you live in EU, simply pick one. I tested a 44, 33 and 2*2 mini pcie version, none worked

18

i could also ship you one or two of mine that do not work (if you live in EU). I have a ath9k/ath10k and an intel card that do not work in r4 but in a solidrun clearfog and in my desktop

19

Thank you for your kindness, I live in China, I will figure it out myself, THX again.

20

Thank you for your kindness, I live in China, I will figure it out myself, THX again.