From: Daniel Schultz <d.schultz@phytec.de>
To: <nm@ti.com>, <vigneshr@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>, Daniel Schultz <d.schultz@phytec.de>
Subject: [PATCH 2/2] arm64: dts: ti: k3-am62a-wakeup: Enable cpsw_mac_syscon in U-Boot
Date: Tue, 23 Sep 2025 06:09:01 -0700 [thread overview]
Message-ID: <20250923130901.4110013-2-d.schultz@phytec.de> (raw)
In-Reply-To: <20250923130901.4110013-1-d.schultz@phytec.de>
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 AM62Ax 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-am62a-wakeup.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
index 9ef1c829a9df..f29279d1e4a9 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-wakeup.dtsi
@@ -28,6 +28,7 @@ opp_efuse_table: syscon@18 {
cpsw_mac_syscon: ethernet-mac-syscon@200 {
compatible = "ti,am62p-cpsw-mac-efuse", "syscon";
reg = <0x200 0x8>;
+ bootph-all;
};
usb0_phy_ctrl: syscon@4008 {
--
2.25.1
next prev parent reply other threads:[~2025-09-23 13:09 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 ` Daniel Schultz [this message]
2025-10-27 5:20 ` Vignesh Raghavendra
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