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From: Kurt Kanzenbach <kurt@linutronix.de>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Vivien Didelot <vivien.didelot@gmail.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	netdev@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	devicetree@vger.kernel.org,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Richard Cochran <richardcochran@gmail.com>,
	Kamil Alkhouri <kamil.alkhouri@hs-offenburg.de>,
	ilias.apalodimas@linaro.org
Subject: Re: [RFC PATCH 9/9] dt-bindings: net: dsa: Add documentation for Hellcreek switches
Date: Fri, 19 Jun 2020 10:47:43 +0200	[thread overview]
Message-ID: <87zh8zphlc.fsf@kurt> (raw)
In-Reply-To: <20200618134704.GQ249144@lunn.ch>

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Hi Andrew,

On Thu Jun 18 2020, Andrew Lunn wrote:
>> +Ethernet switch connected memory mapped to the host, CPU port wired to gmac0:
>> +
>> +soc {
>> +        switch0: switch@0xff240000 {
>> +                compatible = "hirschmann,hellcreek";
>> +                status = "okay";
>> +                reg = <0xff240000 0x1000   /* TSN base */
>> +                       0xff250000 0x1000>; /* PTP base */
>> +                dsa,member = <0 0>;
>> +
>> +                ports {
>> +                        #address-cells = <1>;
>> +                        #size-cells = <0>;
>> +
>> +                        port@0 {
>> +                                reg = <0>;
>> +                                label = "cpu";
>> +                                ethernet = <&gmac0>;
>> +                        };
>> +
>> +                        port@2 {
>> +                                reg = <2>;
>> +                                label = "lan0";
>> +                                phy-handle = <&phy1>;
>> +                        };
>> +
>> +                        port@3 {
>> +                                reg = <3>;
>> +                                label = "lan1";
>> +                                phy-handle = <&phy2>;
>> +                        };
>> +                };
>> +        };
>> +};
>> +
>> +&gmac0 {
>> +        status = "okay";
>> +        phy-mode = "mii";
>> +
>> +        fixed-link {
>> +                speed = <100>;
>> +                full-duplex;
>
> Hi Kurt
>
> The switch is 100/100Mbps right? The MAC is only Fast ethernet. Do you
> need some properties in the port@0 node to tell the switch to only use
> 100Mbps? I would expect it to default to 1G. Not looked at the code
> yet...

No, that is not needed. That is a hardware configuration and AFAIK
cannot be changed at run time.

Thanks,
Kurt

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  reply	other threads:[~2020-06-19  8:47 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-18  6:40 [RFC PATCH 0/9] Hirschmann Hellcreek DSA driver Kurt Kanzenbach
2020-06-18  6:40 ` [RFC PATCH 1/9] net: dsa: Add tag handling for Hirschmann Hellcreek switches Kurt Kanzenbach
2020-06-18 13:42   ` Andrew Lunn
2020-06-18  6:40 ` [RFC PATCH 2/9] net: dsa: Add DSA driver " Kurt Kanzenbach
2020-06-18 15:22   ` Andrew Lunn
2020-06-19  8:12     ` Kurt Kanzenbach
2020-06-18  6:40 ` [RFC PATCH 3/9] net: dsa: hellcreek: Add PTP clock support Kurt Kanzenbach
2020-06-18 15:46   ` Jakub Kicinski
2020-06-19  8:13     ` Kurt Kanzenbach
2020-06-18 17:23   ` Andrew Lunn
2020-06-19  8:26     ` Kurt Kanzenbach
2020-06-19 13:40       ` Andrew Lunn
2020-06-22 11:52         ` Kurt Kanzenbach
2020-06-24 13:03   ` Richard Cochran
2020-06-25  7:08     ` Kurt Kanzenbach
2020-06-18  6:40 ` [RFC PATCH 4/9] net: dsa: hellcreek: Add support for hardware timestamping Kurt Kanzenbach
2020-06-18  6:40 ` [RFC PATCH 5/9] net: dsa: hellcreek: Add TAPRIO offloading support Kurt Kanzenbach
2020-06-18  6:40 ` [RFC PATCH 6/9] net: dsa: hellcreek: Add debugging mechanisms Kurt Kanzenbach
2020-06-18 17:34   ` Andrew Lunn
2020-06-19  8:36     ` Kurt Kanzenbach
2020-06-19 13:42       ` Andrew Lunn
2020-06-22 12:32         ` Kurt Kanzenbach
2020-06-22 13:55           ` Andrew Lunn
2020-06-23  6:07             ` Kurt Kanzenbach
2020-06-22 14:14           ` Vladimir Oltean
2020-06-23  6:04             ` Kurt Kanzenbach
2020-06-18  6:40 ` [RFC PATCH 7/9] net: dsa: hellcreek: Add PTP status LEDs Kurt Kanzenbach
2020-06-18 17:46   ` Andrew Lunn
2020-06-19  8:45     ` Kurt Kanzenbach
2020-06-19 13:52       ` Andrew Lunn
2020-06-18  6:40 ` [RFC PATCH 8/9] dt-bindings: Add vendor prefix for Hirschmann Kurt Kanzenbach
2020-06-18  6:40 ` [RFC PATCH 9/9] dt-bindings: net: dsa: Add documentation for Hellcreek switches Kurt Kanzenbach
2020-06-18 13:47   ` Andrew Lunn
2020-06-19  8:47     ` Kurt Kanzenbach [this message]
2020-06-19 13:56       ` Andrew Lunn
2020-06-22 12:02         ` Kurt Kanzenbach
2020-06-22 13:49           ` Andrew Lunn
2020-06-23  6:09             ` Kurt Kanzenbach
2020-06-18 17:40   ` Florian Fainelli
2020-06-19  8:48     ` Kurt Kanzenbach
2020-06-22 12:05       ` Kurt Kanzenbach
2020-06-26 17:11         ` Florian Fainelli

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