Re: [PATCH] arm64: dts: ti: k3-j722s-evm: Describe main_uart5

[Bhavya Kapoor]

On 24/08/24 11:44 pm, Nishanth Menon wrote:
> On 11:05-20240822, Bhavya Kapoor wrote:
> > main_uart5 in J722S platform is used by the firmware. Thus,
> what platform? what firmware?

Hey Nishanth, it is used by system firmware for its logs

in J722S-EVM.

> > describe it for completeness, adding the pinmux and mark
> > it as reserved.
> >
> > Signed-off-by: Bhavya Kapoor <b-kapoor@xxxxxx>
> > ---
> >   arch/arm64/boot/dts/ti/k3-j722s-evm.dts | 14 ++++++++++++++
> >   1 file changed, 14 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
> > index 24e9f2ea509b..5addf1c0afc2 100644
> > --- a/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
> > +++ b/arch/arm64/boot/dts/ti/k3-j722s-evm.dts
> > @@ -20,6 +20,7 @@ / {
> >   	aliases {
> >   		serial0 = &wkup_uart0;
> >   		serial2 = &main_uart0;
> > +		serial3 = &main_uart5;
> >   		mmc0 = &sdhci0;
> >   		mmc1 = &sdhci1;
> >   	};
> > @@ -211,6 +212,13 @@ J722S_IOPAD(0x01cc, PIN_OUTPUT, 0)	/* (B22) UART0_TXD */
> >   		bootph-all;
> >   	};
> >   
> > +	main_uart5_pins_default: main-uart5-default-pins {
> > +		pinctrl-single,pins = <
> > +			J722S_IOPAD(0x0108, PIN_INPUT, 3)       /* (J27) UART5_RXD */
> > +			J722S_IOPAD(0x010c, PIN_OUTPUT, 3)      /* (H27) UART5_TXD */
> > +		>;
> > +	};
> > +
> >   	vdd_sd_dv_pins_default: vdd-sd-dv-default-pins {
> >   		pinctrl-single,pins = <
> >   			J722S_IOPAD(0x0120, PIN_INPUT, 7) /* (F27) MMC2_CMD.GPIO0_70 */
> > @@ -330,6 +338,12 @@ &main_uart0 {
> >   	bootph-all;
> >   };
> >   
> > +&main_uart5 {
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&main_uart5_pins_default>;
> Document specifically why reserved.
Will send out v2 for this.
> > +	status = "reserved";
> > +};
> > +
> >   &mcu_pmx0 {
> >   
> >   	mcu_mcan0_pins_default: mcu-mcan0-default-pins {
> > --
> > 2.34.1