From: Chaoyi Chen <chaoyi.chen@rock-chips.com>
To: Andrew Lunn <andrew@lunn.ch>, Chaoyi Chen <kernel@airkyi.com>
Cc: Heiko Stuebner <heiko@sntech.de>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Jonas Karlman <jonas@kwiboo.se>,
Kever Yang <kever.yang@rock-chips.com>,
Jianfeng Liu <liujianfeng1994@gmail.com>,
Dragan Simic <dsimic@manjaro.org>,
Jimmy Hon <honyuenkwun@gmail.com>,
Quentin Schulz <quentin.schulz@cherry.de>,
FUKAUMI Naoki <naoki@radxa.com>,
Cristian Ciocaltea <cristian.ciocaltea@collabora.com>,
Alexey Charkov <alchark@gmail.com>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Sebastian Reichel <sebastian.reichel@collabora.com>,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: rockchip: Add rk3399-evb-ind board
Date: Mon, 28 Apr 2025 09:47:34 +0800 [thread overview]
Message-ID: <c583c59a-d5b7-4e20-9a1f-96f51bd7b4f3@rock-chips.com> (raw)
In-Reply-To: <6291f6b8-75d3-4243-9935-9b64450e2b7f@lunn.ch>
Hi Andrew,
On 2025/4/28 4:42, Andrew Lunn wrote:
>> +&gmac {
>> + assigned-clocks = <&cru SCLK_RMII_SRC>;
>> + assigned-clock-parents = <&clkin_gmac>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&rgmii_pins>;
>> + clock_in_out = "input";
>> + phy-supply = <&vcc_phy>;
>> + phy-mode = "rgmii";
> Does the PCB have extra long clock lines to implement the RGMII 2ns
> delay?
The 2ns delay of RGMII is implemented inside the RK3399 chip instead of
PCB lines, and there are also additional delayline configurations.
>
> Andrew
>
>
next prev parent reply other threads:[~2025-04-28 8:37 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-27 9:42 [PATCH 0/2] Add support for rk3399 industry evaluation board Chaoyi Chen
2025-04-27 9:42 ` [PATCH 1/2] dt-bindings: arm: rockchip: Add " Chaoyi Chen
2025-04-30 10:22 ` Krzysztof Kozlowski
2025-04-27 9:42 ` [PATCH 2/2] arm64: dts: rockchip: Add rk3399-evb-ind board Chaoyi Chen
2025-04-27 20:42 ` Andrew Lunn
2025-04-28 1:47 ` Chaoyi Chen [this message]
2025-04-28 12:45 ` Andrew Lunn
2025-04-29 2:42 ` Chaoyi Chen
2025-04-29 12:22 ` Andrew Lunn
2025-04-30 2:03 ` Chaoyi Chen
2025-04-28 8:19 ` Quentin Schulz
2025-04-28 10:01 ` Chaoyi Chen
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