[Upstream] [PATCH v2 1/2] arm64: dts: ti: k3-am62-phycore-som: Enable cpsw_mac_syscon in U-Boot
Wadim Egorov
w.egorov at phytec.de
Thu Nov 27 05:28:52 PST 2025
On 11/24/25 11:08 AM, 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 at phytec.de>
Reviewed-by: Wadim Egorov <w.egorov at phytec.de>
> ---
> Changes in v2:
> Moved changes from k2-am62-main.dsti to k3-am62-phycore-som.dtsi
>
> arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> index eeca643fedbe..beeac481e683 100644
> --- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
> @@ -219,6 +219,10 @@ &cpsw_port1 {
> bootph-all;
> };
>
> +&cpsw_mac_syscon {
> + bootph-all;
> +};
> +
> &cpsw3g_mdio {
> pinctrl-names = "default";
> pinctrl-0 = <&main_mdio1_pins_default>;
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