Hi Marcel, Marcel Ziswiler <marcel.ziswiler@xxxxxxxxxxx> writes: > Hi there > > I have a question concerning firmware loading for mwifiex_sdio_sd8997. So far the driver hard-codes loading > mrvl/sdsd8997_combo_v4.bin. However, our latest hardware has the SD8997 strapped for sdiouart aka Wi-Fi using > SDIO and Bluetooth using serial UART. Therefore, it also requires a different firmware > sdiouart8997_combo_v4.bin [1] instead. While I successfully tested everything on top of latest -next by > manually re-naming that firmware file I was wondering how exactly this is supposed to work with mwifiex. > > Wouldn't it be possible to detect the strapping and automatically load the correct firmware? Some NXP kernels on codeaurora have a modified version of the old proprietary Marvell driver lurking within, and that driver knows how to query the chip to determine the strapping config. I have not tested this myself but I hope it can give you some idea of how to update mwifiex to do the same. Take a look at woal_sdiommc_get_fw_name (and use protective eyewear): https://source.codeaurora.org/external/imx/linux-imx/tree/drivers/net/wireless/nxp/mxm_wifiex/wlan_src/mlinux/moal_sdio_mmc.c?h=rel_imx_5.4.70_2.3.2&id=688b67b2c7220b01521ffe560da7eee33042c7bd#n1274 Hope that helps! Kind regards, Alvin > > Or how exactly could this be made to work? > > Any suggestions are greatly appreciated. Thanks! > > [1] https://github.com/NXP/imx-firmware/blob/lf-5.10.52_2.1.0/nxp/FwImage_8997_SD/sdiouart8997_combo_v4.bin > > Cheers > > Marcel
