| Message ID | 20240102161839.702625-2-ezra.buehler@husqvarna.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | ARM: dts: at91: gardena-smart-gateway: Use DMA for serial ports | expand |
On 02/01/2024 at 17:18, ezra@easyb.ch wrote: > From: Ezra Buehler <ezra.buehler@husqvarnagroup.com> > > The UART controller does not seem to be fast enough to receive data (at > 115200 baud) without dropping bytes when DMA is disabled. > > This has often been noticed when pasting SSH keys into the serial > console (ttyS0). Only after multiple tries, the long strings would be > successfully transferred without missing characters. > > Co-Developed-by: Michael Zimmermann <michael.zimmermann@grandcentrix.net> > Signed-off-by: Michael Zimmermann <michael.zimmermann@grandcentrix.net> > Signed-off-by: Ezra Buehler <ezra.buehler@husqvarnagroup.com> Fine with me: Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Thanks for your patch. Best regards, Nicolas > --- > arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi b/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi > index 5f4eaa618ab4..9618b8d965b0 100644 > --- a/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi > +++ b/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi > @@ -39,6 +39,8 @@ &adc0 { > }; > > &dbgu { > + atmel,use-dma-rx; > + atmel,use-dma-tx; > status = "okay"; > }; > > -- > 2.39.2 >
diff --git a/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi b/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi index 5f4eaa618ab4..9618b8d965b0 100644 --- a/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi +++ b/arch/arm/boot/dts/microchip/at91sam9x5ek.dtsi @@ -39,6 +39,8 @@ &adc0 { }; &dbgu { + atmel,use-dma-rx; + atmel,use-dma-tx; status = "okay"; };