linux-kernel - [PATCH] ARM: dts: aspeed: cloudripper: Add comments for "mdio1"

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Message-Id: <20210813061900.24539-1-rentao.bupt@gmail.com>
Date:   Thu, 12 Aug 2021 23:19:00 -0700
From:   rentao.bupt@...il.com
To:     Rob Herring <robh+dt@...nel.org>, Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-aspeed@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        openbmc@...ts.ozlabs.org, taoren@...com
Cc:     Tao Ren <rentao.bupt@...il.com>
Subject: [PATCH] ARM: dts: aspeed: cloudripper: Add comments for "mdio1"

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

Add some comments to explain the purpose of "mdio1" controller: it's
connected to the MDC/MDIO interface of the on-board management switch.

Signed-off-by: Tao Ren <rentao.bupt@...il.com>
---
 arch/arm/boot/dts/aspeed-bmc-facebook-cloudripper.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-facebook-cloudripper.dts b/arch/arm/boot/dts/aspeed-bmc-facebook-cloudripper.dts
index 01ec3ce0a29d..9c6271a17ae8 100644
--- a/arch/arm/boot/dts/aspeed-bmc-facebook-cloudripper.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-facebook-cloudripper.dts
@@ -96,6 +96,11 @@
 	status = "okay";
 };
 
+/*
+ * "mdio1" is connected to the MDC/MDIO interface of the on-board
+ * management switch (whose ports are connected to BMC, Host and front
+ * panel ethernet port).
+ */
 &mdio1 {
 	status = "okay";
 };
-- 
2.17.1