| Message ID | 20170829202652.5476-3-stefan.bruens@rwth-aachen.de |
|---|---|
| State | New |
| Headers | show |
| Series | Enable SPI on A64/Pine64 | expand |
Hi Stefan, On Tue, Aug 29, 2017 at 10:26:52PM +0200, Stefan Brüns wrote: > The two spi channels/controllers are available on the PI-2 resp. Euler > connector, enable both. Contrary to the Pi, the A64 SOC only supports > one chip select, so the second chipselect is not available (though > it can be emulated using gpio chipselect). > > Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> > --- > arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts > index 827168bc22ed..f25274e8b3e0 100644 > --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts > @@ -124,6 +124,14 @@ > status = "okay"; > }; > > +&spi0 { > + status = "okay"; > +}; > + > +&spi1 { > + status = "okay"; > +}; Anything on the Euler or PI connector is muxable to some other function. We cannot enforce a default, since we can't know for sure that all our users will use it that way (even though the majority probably will). This is why you also have those nodes populated but disabled for the uart for example in the pine64 DTS. But in our case, there's not much to populate :) Maxime
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts index 827168bc22ed..f25274e8b3e0 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts @@ -124,6 +124,14 @@ status = "okay"; }; +&spi0 { + status = "okay"; +}; + +&spi1 { + status = "okay"; +}; + /* On Exp and Euler connectors */ &uart0 { pinctrl-names = "default";
The two spi channels/controllers are available on the PI-2 resp. Euler connector, enable both. Contrary to the Pi, the A64 SOC only supports one chip select, so the second chipselect is not available (though it can be emulated using gpio chipselect). Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> --- arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts | 8 ++++++++ 1 file changed, 8 insertions(+)