linux-kernel - Re: [PATCH] arm: dts: k3-am642-evm-nand: Add bootph-all to NAND related nodes

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Date: Thu, 27 Jun 2024 07:48:24 -0500
From: Nishanth Menon <nm@...com>
To: Roger Quadros <rogerq@...nel.org>
CC: Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, <srk@...com>, <praneeth@...com>,
        <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] arm: dts: k3-am642-evm-nand: Add bootph-all to NAND
 related nodes

On 10:24-20240623, Roger Quadros wrote:
> NAND boot would require these nodes to be present at early stage.
> Ensure that by adding "bootph-all" to relevant nodes.
> 
> Signed-off-by: Roger Quadros <rogerq@...nel.org>
> ---
>  arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso b/arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso
> index dc70b6fbc3d7..babd681666f4 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso
> +++ b/arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso
> @@ -13,6 +13,7 @@
>  
>  &main_pmx0 {
>  	gpmc0_pins_default: gpmc0-pins-default {
> +		bootph-all;
>  		pinctrl-single,pins = <
>  			AM64X_IOPAD(0x0094, PIN_INPUT, 7) /* (T19) GPMC0_BE1n.GPIO0_36 */
>  			AM64X_IOPAD(0x003c, PIN_INPUT, 0) /* (T20) GPMC0_AD0 */
> @@ -49,7 +50,9 @@ AM64X_IOPAD(0x00a4, PIN_OUTPUT, 0) /* (N17) GPMC0_DIR */
>  };
>  
>  &main_gpio0 {
> +	bootph-all;
>  	gpio0-36 {
> +		bootph-all;
>  		gpio-hog;
>  		gpios = <36 0>;
>  		input;
> @@ -58,10 +61,12 @@ gpio0-36 {
>  };
>  
>  &elm0 {
> +	bootph-all;
>  	status = "okay";
>  };
>  
>  &gpmc0 {
> +	bootph-all;

NAK. please add bootph property ONLY to leaf nodes.

>  	status = "okay";
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&gpmc0_pins_default>;
> @@ -69,6 +74,7 @@ &gpmc0 {
>  	#size-cells = <1>;
>  
>  	nand@0,0 {
> +		bootph-all;
>  		compatible = "ti,am64-nand";
>  		reg = <0 0 64>;		/* device IO registers */
>  		interrupt-parent = <&gpmc0>;
> 
> ---
> base-commit: 4031a2866a9f0f5c585cfee65b3fb5ab17c95276
> change-id: 20240623-am642-evm-nand-bootph-03b68b4c9d9e
> 
> Best regards,
> -- 
> Roger Quadros <rogerq@...nel.org>
> 

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D