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boundary=6359a66ba761be3e5a04adee6e9d479520c40fb2731af54d02b8be3e9469; micalg=pgp-sha512; protocol="application/pgp-signature" Date: Wed, 11 Nov 2026 09:52:01 +0000 Message-Id: Cc: "Vasily Khoruzhick" , "Alistair Francis" , "Paul Walmsley" , "Palmer Dabbelt" , "Albert Ou" , "Alexandre Ghiti" , "Troy Mitchell" , , , , , Subject: Re: [PATCH v2 2/2] riscv: dts: spacemit: enable Bluetooth on BPI-F3 From: "Troy Mitchell" To: =?utf-8?q?Fr=C3=A9d=C3=A9ric_Mah=C3=A9?= , "Marcel Holtmann" , "Luiz Augusto von Dentz" , "Rob Herring" , "Krzysztof Kozlowski" , "Conor Dooley" , "Yixun Lan" X-Mailer: aerc 0.21.0-reader-ipc4 References: <20261111094557.443481-1-frederic.mahe@cirad.fr> <20261111094557.443481-3-frederic.mahe@cirad.fr> In-Reply-To: <20261111094557.443481-3-frederic.mahe@cirad.fr> X-QQ-SENDSIZE: 520 Feedback-ID: esmtpsz:linux.spacemit.com:qybglogicsvrgz:qybglogicsvrgz3a-0 X-QQ-XMAILINFO: MQATRXU0qUVPtMJGdV/qYTqHVHYqtOb/+8WoFrBTaqq+ETn+zwvGt12e jAap32TdQuikSDDRXc0uznT5uAUwCr2P/ZUlr8iJ2rwGTb6V8BgJE+iFrPcBHulhC4X9EbE D3u5LQXFmzXULkNAyslr77brZ2cFoUDzPRXgamKRGyyoWlhhe5fbSty5LYarOKSnmkWdEVC YqHnsSZ+VopkKAGHvPFLpUT/UMGwQoyu4WSnuS6JHbVKJ7mxQ0ZQv+9M3mSLTsaBhUBrP4e CLy5s6grLFbF7VtffsL01J2w/q6XcoSIOOrc1hBzG8dO743sWUb0YtFDBn9+12MT4gHDnfB lFv/gbBFWilS8far+1/DVtLzzMEWGs/NKPE+zniTOnL3ePPLutoRh00fXYFbf3XCfFimA0T Y0TN7KRfLh7GuyIzrLyUqxpmbiSn8nuPnfet1Z7wsrB22XY5UdbQsMXAw1EHONLgXc0KY3Q /DknF6ft5eBBTr2fAVx1ui7OdzE9SVDOfXW/LNzqfTEXwzAWBIgLVhq9sfN90l2MbJ2Cjay 63BJJWLVFrefBmXYCfr+dIzGdR2GxY/iN1y/SNlcpHTicnZkjp38Gvr78G6v7snFLvVV3L5 pJui0ETk8VGkhBXBRMfnPL1gx1HihvLz7gJM8eLXpMDVVJtz0K9XBzVbbYodB8pliGyS487 Z/4DF8i/G0CIWQgNzTrvDz0RfmFa3+4OPdL9G45kaUCd4XbSoyIZ9Yg+r4PJuCN/DKnShAv VlXu5JNP7eCS61AwCGOrCZV4jbywshcnD1r5ccA3N6+ToABYB6awhv9xUV1oNfuxJ81m9MF mQmKXS2kOgH6o7eqd7vbhnFA9dxB/hTrJp8qEU8CT8cbbybKPq3HFIy77BNVa6MfuaA2qz+ pn6tO+0UmnPRBN23OlKh/q+o88sBmF/p2KijUYWuhftFrRXRFT3YFWFGXVHHw5+YxmW0jWM mqpkrX+6kJC7oSyCFdwYYGF8VSgfufvomqgF3xN51P+ZU/X3yZQdvPSpuR+nfimVLUYRCv4 YKdwFdW5aJO061sef03Y+2+nk25uNf+44pNE3ZK+19rmWVJViKlnfThxZMEZ1XXTAYd3WS8 wt5nFb17B84g7MNTSISy8Q= X-QQ-XMRINFO: NyFYKkN4Ny6FuXrnB5Ye7Aabb3ujjtK+gg== X-QQ-RECHKSPAM: 0 --6359a66ba761be3e5a04adee6e9d479520c40fb2731af54d02b8be3e9469 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=UTF-8 On Wed Nov 11, 2026 at 9:45 AM GMT, Fr=C3=A9d=C3=A9ric Mah=C3=A9 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: Fr=C3=A9d=C3=A9ric Mah=C3=A9 Reviewed-by: Troy Mitchell --=20 Troy Mitchell --6359a66ba761be3e5a04adee6e9d479520c40fb2731af54d02b8be3e9469 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iJcEABYKAD8WIQSL4Ay2cExaPXAQcU2YCe+A+TM0LwUCavQ6wSEcdHJveS5taXRj aGVsbEBsaW51eC5zcGFjZW1pdC5jb20ACgkQmAnvgPkzNC+EYAD+PVfe6aNSkOPl AkTo/K9XuL9d/7QM1aSnDy4F1QOkuwsA/36C73njG07WkyEjw5wg2ulhtMmt7wNc 2/e/DVeUUG4B =v4s2 -----END PGP SIGNATURE----- --6359a66ba761be3e5a04adee6e9d479520c40fb2731af54d02b8be3e9469--