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From: Andrew Lunn <andrew@lunn.ch>
To: Zhou Yanjie <zhouyanjie@wanyeetech.com>
Cc: davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org,
	peppe.cavallaro@st.com, alexandre.torgue@foss.st.com,
	joabreu@synopsys.com, mcoquelin.stm32@gmail.com,
	linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
	netdev@vger.kernel.org, devicetree@vger.kernel.org,
	linux-stm32@st-md-mailman.stormreply.com,
	linux-arm-kernel@lists.infradead.org, dongsheng.qiu@ingenic.com,
	aric.pzqi@ingenic.com, rick.tyliu@ingenic.com,
	sihui.liu@ingenic.com, jun.jiang@ingenic.com,
	sernia.zhou@foxmail.com, paul@crapouillou.net
Subject: Re: [PATCH v2 2/2] net: stmmac: Add Ingenic SoCs MAC support.
Date: Thu, 10 Jun 2021 16:57:29 +0200	[thread overview]
Message-ID: <YMIoWS57Ra19E1qT@lunn.ch> (raw)
In-Reply-To: <12f35415-532e-5514-bc97-683fb9655091@wanyeetech.com>

> Here is Ingenic's reply, the time length corresponding to a unit is 19.5ps
> (19500fs).

Sometimes, there is a negative offset in the delays. So a delay value
of 0 written to the register actually means -200ps or something.

   Andrew

  parent reply	other threads:[~2021-06-10 14:57 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-09 17:35 [PATCH v2 0/2] Add Ingenic SoCs MAC support 周琰杰 (Zhou Yanjie)
2021-06-09 17:35 ` [PATCH v2 1/2] dt-bindings: dwmac: Add bindings for new Ingenic SoCs 周琰杰 (Zhou Yanjie)
2021-06-09 17:35 ` [PATCH v2 2/2] net: stmmac: Add Ingenic SoCs MAC support 周琰杰 (Zhou Yanjie)
2021-06-10  3:19   ` Andrew Lunn
2021-06-10  8:00     ` Zhou Yanjie
2021-06-10 12:15       ` Andrew Lunn
     [not found]         ` <346f64d9-6949-b506-258f-4cfa7eb22784@wanyeetech.com>
2021-06-10 14:42           ` Andrew Lunn
2021-06-13  8:26             ` 周琰杰
     [not found]           ` <12f35415-532e-5514-bc97-683fb9655091@wanyeetech.com>
2021-06-10 14:57             ` Andrew Lunn [this message]
2021-06-13  8:34               ` 周琰杰
2021-06-13 16:31                 ` Andrew Lunn
2021-06-14 15:57                   ` 周琰杰

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