On 11/13/22 08:26, Shengyu Qu wrote:
Hello, I'm facing the same problem on sdio version of AP6275 module in mainline kernel. But I found a very old version from here could work with mainline brcmfmac driver.
Link: https://bbs.t-firefly.com/forum.php?mod=viewthread&tid=3107
Thanks for the info.
The firmware on the firefly thread doesn't seem to have a CLM blob that
the mainline driver wants, just two types of the ~900KB main firmware
for AP mode support or not.
It also doesn't have _sdio or _pcie in the filenames... I tried it but
although it's different in what it read after downloading NVRAM
[ 3.775602] brcmfmac: brcmf_pcie_download_fw_nvram: sharedram_addr
0xfa2c05d3
(the rockchip SDK firmware says 0xfa1a05e5)
it still times it out a few seconds later as unresponsive after the fw
load... maybe it is for SDIO only, or the lack of CLM, present in the
Rockchip fw, means it won't get anywhere.
Besides who I should ask to make proper firmware for it into linux-firmware repo?
It would also be great to hear if the PCIe firmware from Rockchip aimed
at the OOT driver was definitively incompatible with the mainline driver
and we have to find a solution for that from Broadcom, or it is expected
to basically work. I realize it might not be easy to get an answer
internally but this chipset is likely to appear in more RK3588 SBCs soon
since it's the one on the evb.
-Andy
Shengyu
