BananaPi M64 exposes UART2 interface that is supposed to be enabled by default (see "Default Function" in the pin definition table from the manufacturer [1]).
[1]: https://bananapi.gitbooks.io/bpi-m64/en/bpi-m64gpiopindefine.html Signed-off-by: Yegor Timoshenko <yegortimoshe...@riseup.net> --- arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts index 094cfed13df9..100d1a8fd292 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-bananapi-m64.dts @@ -54,6 +54,7 @@ ethernet0 = &emac; serial0 = &uart0; serial1 = &uart1; + serial2 = &uart2; }; chosen { @@ -312,6 +313,12 @@ status = "okay"; }; +&uart2 { + pinctrl-names = "default"; + pinctrl-0 = <&uart2_pins>; + status = "okay"; +}; + &usb_otg { dr_mode = "otg"; status = "okay"; -- 2.20.1
