[REGRESSION][BISECTED] wifi broken on pinebook pro

[Robin Murphy]

On 2026-01-02 12:17 pm, FUKAUMI Naoki wrote:
> Hi Jan,
> 
> Just FYI,
> 
> On 12/29/25 21:18, Jan Palus wrote:
>> On 29.12.2025 06:23, Peter Robinson wrote:
>>> On Wed, 17 Dec 2025 at 11:26, Jan Palus <jpalus at fastmail.com> wrote:
>>>>
>>>> WiFi no longer works on Pinebook Pro after upgrade to kernel 6.18. It
>>>> appears firmware fails to load:
>>>>
>>>> ...
>>>> mmc_host mmc0: card is non-removable.
>>>> mmc_host mmc0: Bus speed (slot 0) = 400000Hz (slot req 400000Hz, 
>>>> actual 400000HZ div = 0)
>>>> Bluetooth: hci0: BCM: features 0x0f
>>>> Bluetooth: hci0: BCM4345C5 Ampak_CL1 UART 37.4 MHz BT 5.0 [Version: 
>>>> Version: 0039.0089]
>>>> Bluetooth: hci0: BCM4345C5 (003.006.006) build 0089
>>>> mmc_host mmc0: Bus speed (slot 0) = 148500000Hz (slot req 
>>>> 150000000Hz, actual 148500000HZ div = 0)
>>>> dwmmc_rockchip fe310000.mmc: Successfully tuned phase to 55
>>>> mmc0: new UHS-I speed SDR104 SDIO card at address 0001
>>>> brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43456-sdio for 
>>>> chip BCM4345/9
>>>> usbcore: registered new interface driver brcmfmac
>>>> brcmfmac mmc0:0001:1: Direct firmware load for brcm/brcmfmac43456- 
>>>> sdio.pine64,pinebook-pro.bin failed with error -2
>>>> brcmfmac: brcmf_sdio_bus_rxctl: resumed on timeout
>>>> ieee80211 phy0: brcmf_bus_started: failed: -110
>>>> ieee80211 phy0: brcmf_attach: dongle is not responding: err=-110
>>>> brcmfmac: brcmf_sdio_firmware_callback: brcmf_attach failed
>>>>
>>>> compared to 6.17 instead of last 4 lines with errors there's single one
>>>> with info about loaded firmware:
>>>>
>>>> brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/9 wl0: May 14 
>>>> 2020 17:26:08 version 7.84.17.1 (r871554) FWID 01-3d9e1d87
>>>>
>>>> Bisected to:
>>>>
>>>> 6d54d935062e2d4a7d3f779ceb9eeff108d0535d is the first new commit
>>>> commit 6d54d935062e2d4a7d3f779ceb9eeff108d0535d (HEAD)
>>>> Author: Peter Robinson <pbrobinson at gmail.com>
>>>> Date:   Wed Aug 27 16:30:37 2025
>>>>
>>>>      arm64: dts: rockchip: Further describe the WiFi for the 
>>>> Pinebook Pro
>>>>
>>>>      Update the wake-up pin and associated interupt details for the
>>>>      Pinebook Pro WiFi module.
>>>>
>>>>      Signed-off-by: Peter Robinson <pbrobinson at gmail.com>
>>>>      Link: https://lore.kernel.org/r/20250827143040.1644867-1- 
>>>> pbrobinson at gmail.com
>>>>      Signed-off-by: Heiko Stuebner <heiko at sntech.de>
>>>>
>>>>   arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts | 18 ++++++++ 
>>>> ++++++++++
>>>>   1 file changed, 18 insertions(+)
>>>>
>>>>
>>>> With this commit reverted on top of 6.18.1 wireless connection works
>>>> fine.
>>>>
>>>> Not sure what could be relevant but:
>>>> - it's an early model, I think second batch, delivered end of 2019
>>>
>>> Is it the Synoptics or the Cypress/Infineon module? What firmware are 
>>> you using?
>>
>> Judging by the fact acquisition by Synaptics happened sometime late
>> 2020/early 2021 I guess it must be Cypress? I'm not really familiar with
>> BCM43456 chip history. Firmware files used are
>> brcm/brcmfmac43456-sdio.{bin,clm_blob,txt} exactly those found at:
>>
>> https://github.com/RPi-Distro/firmware-nonfree/tree/trixie/debian/ 
>> config/brcm80211/brcm
> 
> I'm using the same firmware for the Radxa CM3J equipped with the 
> AP6745(BCM43456) and experiencing the same error(brcmf_sdio_bus_rxctl: 
> resumed on timeout) when the interrupt is enabled.

Yup, IIRC the host_wake pin behaviour - at least the polarity, and 
possibly whether it's used as an out-of-band interrupt at all - is 
really a property of the firmware rather than the hardware, and can be 
different for different blobs.

Robin.

> 
>   https://lore.kernel.org/linux-rockchip/A7ADEB12E25ED346+00048ee9- 
> c4d6-442d-a02c-cefbdc6be353 at radxa.com/
> 
> Best regards,
> 
> -- 
> FUKAUMI Naoki
> Radxa Computer (Shenzhen) Co., Ltd.
> 
>>>
>>>> - mainline uboot 2025.10 is used
>>>>
>>>>
>>>> #regzbot introduced: 6d54d93506
>>
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> 
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