Re: [PATCH] arm64: dts: rockchip: qnap-ts433: Simplify network PHY connection

From: "Heiko Stübner" <heiko@sntech.de>
To: Chen-Yu Tsai <wens@kernel.org>, Jonas Karlman <jonas@kwiboo.se>,
	Diederik de Haas <didi.debian@cknow.org>
Cc: linux-rockchip@lists.infradead.org,
	"Uwe Kleine-König" <ukleinek@debian.org>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Conor Dooley" <conor+dt@kernel.org>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	"Andrew Lunn" <andrew@lunn.ch>
Subject: Re: [PATCH] arm64: dts: rockchip: qnap-ts433: Simplify network PHY connection
Date: Mon, 05 Aug 2024 18:33:52 +0200	[thread overview]
Message-ID: <3723411.CpGBqz00pN@diego> (raw)
In-Reply-To: <1805269.IgJLvJe6uz@bagend>

Am Montag, 4. März 2024, 17:47:22 CEST schrieb Diederik de Haas:
> On Monday, 4 March 2024 16:46:59 CET Jonas Karlman wrote:
> > Sorry for not getting back to you sooner, but yes I would check with
> > phy-mode = "rgmii-id". There is also a possible issue with rk gmac
> > driver in both U-Boot and linux, it always set enable tx/rx delay bit.
> > 
> > Please, try with following in U-Boot:
> 
> No worries :)
> Will try your suggestions soon, but it's probably better to take that 
> discussion somewhere else to not further clutter up this patch/thread.

did you get somewhere with your testing?

Just as a datapoint, I also had a lot of "fun" with the gmac0 on my qnap
ts433 today.

Cable connection was detected but dhcp did not get an IP address.

In the end I realized that the vccio4 supply was 1.8V but the
pmu-io-domains were not enabled, so the soc thought it got 3.3V

After enabling pmu-io-domains [0], I now get networking on that port.

Heiko

[0] https://lore.kernel.org/linux-rockchip/20240805162052.3345768-1-heiko@sntech.de/T/#u

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