• Lukas Wunner's avatar
    wifi: mwifiex: Support SD8978 chipset · bba047f1
    Lukas Wunner authored
    The Marvell SD8978 (aka NXP IW416) uses identical registers as SD8987,
    so reuse the existing mwifiex_reg_sd8987 definition.
    
    Note that mwifiex_reg_sd8977 and mwifiex_reg_sd8997 are likewise
    identical, save for the fw_dump_ctrl register:  They define it as 0xf0
    whereas mwifiex_reg_sd8987 defines it as 0xf9.  I've verified that
    0xf9 is the correct value on SD8978.  NXP's out-of-tree driver uses
    0xf9 for all of them, so there's a chance that 0xf0 is not correct
    in the mwifiex_reg_sd8977 and mwifiex_reg_sd8997 definitions.  I cannot
    test that for lack of hardware, hence am leaving it as is.
    
    NXP has only released a firmware which runs Bluetooth over UART.
    Perhaps Bluetooth over SDIO is unsupported by this chipset.
    Consequently, only an "sdiouart" firmware image is referenced, not an
    alternative "sdsd" image.
    Signed-off-by: default avatarLukas Wunner <lukas@wunner.de>
    Signed-off-by: default avatarKalle Valo <kvalo@kernel.org>
    Link: https://lore.kernel.org/r/536b4f17a72ca460ad1b07045757043fb0778988.1674827105.git.lukas@wunner.de
    bba047f1
marvell-8xxx.txt 2.51 KB