mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: "Kumar, Udit" <u-kumar1@ti.com>
To: Judith Mendez <jm@ti.com>, Nishanth Menon <nm@ti.com>
Cc: Vignesh Raghavendra <vigneshr@ti.com>,
	Tero Kristo <kristo@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<u-kumar1@ti.com>
Subject: Re: [PATCH] arm64: dts: ti: k3-am62p-j722s-common-wakeup: Add GP_SW1 efuse node for silicon revision
Date: Tue, 15 Sep 2026 22:10:24 +0530	[thread overview]
Message-ID: <b490c984-8fba-4b92-96f0-8e4a4cc811b0@ti.com> (raw)
In-Reply-To: <20260915001304.3781247-1-jm@ti.com>


Hi Judith,

On 9/15/2026 5:43 AM, Judith Mendez wrote:
> Add efuse node for GP_SW1 register at offset 0x230. The GP_SW1
> efuse register is used to determine AM62Px silicon revision.
> Reference efuse cell from chipid node via nvmem-cells.
> 
> Signed-off-by: Judith Mendez <jm@ti.com>
> ---
>  .../boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi  | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi
> index 8612b45e665cf..0f00e9d87f8ba 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-wakeup.dtsi
> @@ -19,9 +19,23 @@ wkup_conf: bus@43000000 {
>  		chipid: chipid@14 {
>  			compatible = "ti,am654-chipid";
>  			reg = <0x14 0x4>;
> +			nvmem-cells = <&gpsw1>;
> +			nvmem-cell-names = "gpsw1";
>  			bootph-all;
>  		};
>  
> +		gpsw_efuse: efuse@230 {
> +			compatible = "ti,am62p-efuse", "socionext,uniphier-efuse";
> +			reg = <0x230 0x10>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			bootph-all;
> +
> +			gpsw1: gpsw1@4 {
> +				reg = <0x4 0x4>;
> +			};

For J722S, this register this marked as reserved,
Could you update in am62-p specific dt.

Thanks

> +		};
> +
>  		opp_efuse_table: syscon@18 {
>  			compatible = "ti,am62-opp-efuse-table", "syscon";
>  			reg = <0x18 0x4>;


  reply	other threads:[~2026-09-15 16:41 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-15  0:13 Judith Mendez
2026-09-15 16:40 ` Kumar, Udit [this message]
2026-09-15 22:42   ` Judith Mendez

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=b490c984-8fba-4b92-96f0-8e4a4cc811b0@ti.com \
    --to=u-kumar1@ti.com \
    --cc=conor+dt@kernel.org \
    --cc=devicetree@vger.kernel.org \
    --cc=jm@ti.com \
    --cc=kristo@kernel.org \
    --cc=krzk+dt@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=nm@ti.com \
    --cc=robh@kernel.org \
    --cc=vigneshr@ti.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

all inboxes | Powered by JetHome®