Created attachment 304126 [details] dmesg WCN6851 (?) is a combo WiFi/BT chip found on Qualcomm SM8350 platforms Currently ath11k barfs on it with the unsupported hardware version: [ 4.962456] ath11k_pci 0000:01:00.0: Adding to iommu group 12 [ 4.971641] ath11k_pci 0000:01:00.0: BAR 0: assigned [mem 0x60400000-0x605fffff 64bit] [ 4.979855] ath11k_pci 0000:01:00.0: enabling device (0000 -> 0002) [ 4.986342] ath11k_pci 0000:01:00.0: Unsupported WCN6855 SOC hardware version: 1 16 [ 4.999316] ath11k_pci: probe of 0000:01:00.0 failed with error -95 lspci: 0000:01:00.0 Network controller [0280]: Qualcomm QCNFA765 Wireless Network Adapter [17cb:1103] (rev 01) Subsystem: Qualcomm Device [17cb:0108] Flags: fast devsel, IOMMU group 12 Memory at 60400000 (64-bit, non-prefetchable) [size=2M] Capabilities: [40] Power Management version 3 Capabilities: [50] MSI: Enable- Count=1/32 Maskable+ 64bit- Capabilities: [70] Express Endpoint, MSI 00 Capabilities: [100] Advanced Error Reporting Capabilities: [148] Secondary PCI Express Capabilities: [158] Transaction Processing Hints Capabilities: [1e4] Latency Tolerance Reporting Capabilities: [1ec] L1 PM Substates
I believe this device is WCN6855 hw1.0 but need to check. Though I'm not optimistic we are able to support that.
Created attachment 304943 [details] WCN6855 hw 1.1 try1 Dummy attempt to bring up the device, c&p of the wcn6855 hw2.0 / 2.1
Using the try1 patch and the firmware provided with the board I was able to give some life into the wifi chip, but it stops breathing quite soon: [ 4.200737] ath11k_pci 0000:01:00.0: Adding to iommu group 22 [ 4.208236] ath11k_pci 0000:01:00.0: BAR 0: assigned [mem 0x60400000-0x605fffff 64bit] [ 4.220307] ath11k_pci 0000:01:00.0: enabling device (0000 -> 0002) [ 26.731966] ath11k_pci 0000:01:00.0: BAR 0: assigned [mem 0x60400000-0x605fffff 64bit] [ 26.745920] ath11k_pci 0000:01:00.0: MSI vectors: 32 [ 26.751174] ath11k_pci 0000:01:00.0: wcn6855 hw1.1 [ 26.915121] mhi mhi0: Requested to power ON [ 26.919615] mhi mhi0: Power on setup success [ 27.309810] mhi mhi0: Wait for device to enter SBL or Mission mode [ 28.030230] ath11k_pci 0000:01:00.0: chip_id 0x0 chip_family 0xb board_id 0x6 soc_id 0x400c0110 [ 28.040427] ath11k_pci 0000:01:00.0: fw_version 0x110880f8 fw_build_timestamp 2021-09-17 21:07 fw_build_id WLAN.HSP.1.1.c3-00248-QCAHSPSWPL_V1_V2_SILICONZ-1 [ 30.238106] ath11k_pci 0000:01:00.0: ignore reset dev flags 0xc800 [ 33.774925] ath11k_pci 0000:01:00.0: failed to receive wmi unified ready event: -110 [ 33.789300] ath11k_pci 0000:01:00.0: failed to start core: -110 [ 33.800584] ath11k_pci 0000:01:00.0: failed to send wlan mode request (mode 4): -5 [ 33.808393] ath11k_pci 0000:01:00.0: qmi failed to send wlan mode off: -5