linux-kernel - [PATCH] ARM: dts: aspeed: fuji-data64: Enable mac3 controller

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Message-ID: <20251015204840.80070-1-rentao.bupt@gmail.com>
Date: Wed, 15 Oct 2025 13:48:37 -0700
From: rentao.bupt@...il.com
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Joel Stanley <joel@....id.au>,
	Andrew Jeffery <andrew@...econstruct.com.au>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-aspeed@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org,
	Andrew Lunn <andrew@...n.ch>,
	Guenter Roeck <linux@...ck-us.net>,
	Tao Ren <taoren@...a.com>
Cc: Tao Ren <rentao.bupt@...il.com>
Subject: [PATCH] ARM: dts: aspeed: fuji-data64: Enable mac3 controller

From: Tao Ren <rentao.bupt@...il.com>

"mac3" controller was removed from the initial version of fuji-data64
dts because the rgmii setting is incorrect, but dropping mac3 leads to
regression in the existing fuji platform, because fuji.dts simply
includes fuji-data64.dts.

This patch adds mac3 back to fuji-data64.dts to fix the fuji regression,
and rgmii settings need to be fixed later.

Fixes: b0f294fdfc3e ("ARM: dts: aspeed: facebook-fuji: Include facebook-fuji-data64.dts")
Signed-off-by: Tao Ren <rentao.bupt@...il.com>
---
 .../dts/aspeed/aspeed-bmc-facebook-fuji-data64.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-fuji-data64.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-fuji-data64.dts
index aa9576d8ab56..48ca25f57ef6 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-fuji-data64.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-fuji-data64.dts
@@ -1254,3 +1254,17 @@ &emmc {
 	max-frequency = <25000000>;
 	bus-width = <4>;
 };
+
+/*
+ * FIXME: rgmii delay is introduced by MAC (configured in u-boot now)
+ * instead of PCB on fuji board, so the "phy-mode" should be updated to
+ * "rgmii-[tx|rx]id" when the aspeed-mac driver can handle the delay
+ * properly.
+ */
+&mac3 {
+	status = "okay";
+	phy-mode = "rgmii";
+	phy-handle = <&ethphy3>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii4_default>;
+};
-- 
2.47.3