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SubjectRe: [PATCH 6/9] arm64: dts: ti: k3-j721e-beagleboneai64: Add wakeup_uart pinmux
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Hi Nishanth,

On 6/2/2023 12:01 AM, Nishanth Menon wrote:
> Define the wakeup uart pin-mux for completeness. This allows the
> device tree usage in bootloader and firmwares that can configure the
> same appropriately.
>
> Signed-off-by: Nishanth Menon <nm@ti.com>
> ---
> arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
> index c13246a9ed8f..bc53ca566a68 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
> +++ b/arch/arm64/boot/dts/ti/k3-j721e-beagleboneai64.dts
> @@ -531,6 +531,13 @@ J721E_WKUP_IOPAD(0xfc, PIN_INPUT_PULLUP, 0) /* (H24) WKUP_I2C0_SDA */
> >;
> };
>
> + wkup_uart0_pins_default: wkup-uart0-pins-default {
> + pinctrl-single,pins = <
> + J721E_WKUP_IOPAD(0xa0, PIN_INPUT, 0) /* (J29) WKUP_UART0_RXD */
> + J721E_WKUP_IOPAD(0xa4, PIN_OUTPUT, 0) /* (J28) WKUP_UART0_TXD */
> + >;
> + };
> +
> mcu_usbss1_pins_default: mcu-usbss1-pins-default {
> pinctrl-single,pins = <
> J721E_WKUP_IOPAD(0x3c, PIN_OUTPUT_PULLUP, 5) /* (A23) MCU_OSPI1_LBCLKO.WKUP_GPIO0_30 */
> @@ -541,6 +548,8 @@ J721E_WKUP_IOPAD(0x3c, PIN_OUTPUT_PULLUP, 5) /* (A23) MCU_OSPI1_LBCLKO.WKUP_GPIO
> &wkup_uart0 {
> /* Wakeup UART is used by TIFS firmware. */
> status = "reserved";
> + pinctrl-names = "default";
> + pinctrl-0 = <&wkup_uart0_pins_default>;
> };


If you like to consider alias for wkup_uart0 for this board ,

Just to align with other boards for this SOC family.  I understand
wkup_uart0 is not being used.


>
> &main_uart0 {

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