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From: Vignesh Raghavendra <vigneshr@ti.com>
To: Daniel Schultz <d.schultz@phytec.de>, <nm@ti.com>,
	<kristo@kernel.org>, <robh@kernel.org>, <krzk+dt@kernel.org>,
	<conor+dt@kernel.org>, <linux-arm-kernel@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Cc: <upstream@lists.phytec.de>
Subject: Re: [PATCH 1/2] arm64: dts: ti: k3-am62-wakeup: Enable cpsw_mac_syscon in U-Boot
Date: Mon, 27 Oct 2025 10:50:54 +0530	[thread overview]
Message-ID: <1d0e3bd6-eabb-4083-aa20-faae7fd79cff@ti.com> (raw)
In-Reply-To: <20250923130901.4110013-1-d.schultz@phytec.de>

Hi Daniel,

On 23/09/25 18:39, Daniel Schultz wrote:
> Add the "bootph-all" property to cpsw_mac_syscon.
> 
> This fuse region contains the internal MAC address. Without this
> syscon node enabled, this interface will get a random MAC during
> network boot. This is problematic because the AM62x network
> boot is using BOOTP protocol for some binaries and this protocol
> does not support dynamic lease expiration. Therefore, the DHCP
> server can run out of free IP addresses.
> 
> Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
> ---
>  arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
> index 6549b7efa656..41ac17e809be 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
> @@ -30,6 +30,7 @@ opp_efuse_table: syscon@18 {
>  		cpsw_mac_syscon: ethernet-mac-syscon@200 {
>  			compatible = "ti,am62p-cpsw-mac-efuse", "syscon";
>  			reg = <0x200 0x8>;
> +			bootph-all;

Please restrict this to boards that actually support network boot by
moving to dts or SoM specific dtsi? Same applies to 2/2

>  		};
>  
>  		usb0_phy_ctrl: syscon@4008 {

-- 
Regards
Vignesh
https://ti.com/opensource


      parent reply	other threads:[~2025-10-27  5:22 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-23 13:09 [PATCH 1/2] arm64: dts: ti: k3-am62-wakeup: Enable cpsw_mac_syscon in U-Boot Daniel Schultz
2025-09-23 13:09 ` [PATCH 2/2] arm64: dts: ti: k3-am62a-wakeup: " Daniel Schultz
2025-10-27  5:20 ` Vignesh Raghavendra [this message]

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