Hi Miquel,
On ven., oct. 13 2017, Miquel Raynal <miquel.raynal@xxxxxxxxxxxxxxxxxx> wrote:
> Fill ESPRESSObin uart0 node with pinctrl information like in the
> Armada-3720-DB device tree (which uses the same node).
>
> Also explain how to enable the second UART port available on the
> headers. This second port is not enabled by default because both
> headers are dedicated to expose general purpose pins and remapping
> some of them to use the second UART would break existing users.
>
> Suggested-by: László ÁSHIN <laszlo@xxxxxxxx>
> Signed-off-by: Miquel Raynal <miquel.raynal@xxxxxxxxxxxxxxxxxx>
Applied on mvebu/dt64
Thanks,
Gregory
> ---
>
> Changes since v1: comment about UART1 node.
>
> arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
> index 2ce52ba74f73..bdfb5553ddb5 100644
> --- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
> +++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
> @@ -98,9 +98,21 @@
>
> /* Exported on the micro USB connector J5 through an FTDI */
> &uart0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&uart1_pins>;
> status = "okay";
> };
>
> +/*
> + * Connector J17 and J18 expose a number of different features. Some pins are
> + * multiplexed. This is the case for instance for the following features:
> + * - UART1 (pin 24 = RX, pin 26 = TX). See armada-3720-db.dts for an example of
> + * how to enable it. Beware that the signals are 1.8V TTL.
> + * - I2C
> + * - SPI
> + * - MMC
> + */
> +
> /* J7 */
> &usb3 {
> status = "okay";
> --
> 2.11.0
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
--
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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