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Message-ID: <20240628151518.40100-8-afd@ti.com>
Date: Fri, 28 Jun 2024 10:15:18 -0500
From: Andrew Davis <afd@...com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
Tero
Kristo <kristo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
Krzysztof
Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley
<conor+dt@...nel.org>,
Jan Kiszka <jan.kiszka@...mens.com>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Andrew Davis <afd@...com>
Subject: [PATCH 7/7] arm64: dts: ti: k3-am62: Add cpsw-mac-efuse node to wkup_conf
The WKUP system controller address region contains an eFuse block with
MAC addresses to be used by the Ethernet controller. The property
“ti,syscon-efuse” contains a phandle to a syscon region and an offset
into this region where the MAC addresses can be found. Currently
"ti,syscon-efuse" points to the entire system controller address space
node with an offset to the eFuse IP address.
Instead add a cpsw-mac-efuse node to describe the exact eFuse area. Then
point the Ethernet controller directly to this region, no offset needed.
Signed-off-by: Andrew Davis <afd@...com>
---
arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 2 +-
arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi | 5 +++++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
index 0f2722c4bcc32..9662b20d59dae 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
@@ -739,7 +739,7 @@ cpsw_port1: port@1 {
label = "port1";
phys = <&phy_gmii_sel 1>;
mac-address = [00 00 00 00 00 00];
- ti,syscon-efuse = <&wkup_conf 0x200>;
+ ti,syscon-efuse = <&cpsw_mac_syscon 0x0>;
};
cpsw_port2: port@2 {
diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
index 66ddf2dc51afa..e0afafd532a5c 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi
@@ -22,6 +22,11 @@ chipid: chipid@14 {
reg = <0x14 0x4>;
};
+ cpsw_mac_syscon: ethernet-mac-syscon@200 {
+ compatible = "ti,am62p-cpsw-mac-efuse", "syscon";
+ reg = <0x200 0x8>;
+ };
+
usb0_phy_ctrl: syscon@...8 {
compatible = "ti,am62-usb-phy-ctrl", "syscon";
reg = <0x4008 0x4>;
--
2.39.2
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