On Wed Nov 11, 2026 at 9:45 AM GMT, Frédéric Mahé wrote:
> The BPI-F3 has an RTL8852BS module whose Bluetooth part is on UART2,
> with hardware flow control. GPIO 63 powers Bluetooth on and GPIO 64
> is the device wake line.
>
> The firmware config switches the UART to 1.5 Mbaud, so take the UART2
> clock from slow_uart2, set to 48 MHz.
>
> Tested with a laptop: scan, pairing, and l2ping in both directions,
> including incoming connections while the UART is runtime suspended.
> An 8-hour soak (an HCI command every 20 s) showed no errors.
>
> This patch was prepared with the help of an AI assistant (Claude),
> which also ran the tests.
>
> Signed-off-by: Frédéric Mahé <frederic.mahe@cirad.fr>
Reviewed-by: Troy Mitchell <troy.mitchell@linux.spacemit.com>


-- 
Troy Mitchell