From: Ansuel Smith <ansuelsmth@gmail.com>
To: Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Rob Herring <robh+dt@kernel.org>,
Russell King <linux@armlinux.org.uk>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: Ansuel Smith <ansuelsmth@gmail.com>
Subject: [net-next PATCH v5 07/14] dt-bindings: net: dsa: qca8k: Document qca,sgmii-enable-pll
Date: Mon, 11 Oct 2021 03:30:17 +0200 [thread overview]
Message-ID: <20211011013024.569-8-ansuelsmth@gmail.com> (raw)
In-Reply-To: <20211011013024.569-1-ansuelsmth@gmail.com>
Document qca,sgmii-enable-pll binding used in the CPU nodes to
enable SGMII PLL on MAC config.
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
---
Documentation/devicetree/bindings/net/dsa/qca8k.txt | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.txt b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
index aeb206556f54..05a8ddfb5483 100644
--- a/Documentation/devicetree/bindings/net/dsa/qca8k.txt
+++ b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
@@ -45,6 +45,16 @@ A CPU port node has the following optional node:
Mostly used in qca8327 with CPU port 0 set to
sgmii.
- qca,sgmii-txclk-falling-edge: Set the transmit clock phase to falling edge.
+- qca,sgmii-enable-pll : For SGMII CPU port, explicitly enable PLL, TX and RX
+ chain along with Signal Detection.
+ This should NOT be enabled for qca8327. If enabled with
+ qca8327 the sgmii port won't correctly init and an err
+ is printed.
+ This can be required for qca8337 switch with revision 2.
+ A warning is displayed when used with revision greater
+ 2.
+ With CPU port set to sgmii and qca8337 it is advised
+ to set this unless a communication problem is observed.
For QCA8K the 'fixed-link' sub-node supports only the following properties:
--
2.32.0
next prev parent reply other threads:[~2021-10-11 1:31 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-11 1:30 [net-next PATCH v5 00/14] Multiple improvement for qca8337 switch Ansuel Smith
2021-10-11 1:30 ` [net-next PATCH v5 01/14] net: dsa: qca8k: add mac_power_sel support Ansuel Smith
2021-10-11 1:47 ` Florian Fainelli
2021-10-11 1:30 ` [net-next PATCH v5 02/14] dt-bindings: net: dsa: qca8k: Add SGMII clock phase properties Ansuel Smith
2021-10-11 1:48 ` Florian Fainelli
2021-10-11 1:30 ` [net-next PATCH v5 03/14] net: dsa: qca8k: add support for sgmii falling edge Ansuel Smith
2021-10-11 1:49 ` Florian Fainelli
2021-10-11 1:30 ` [net-next PATCH v5 04/14] dt-bindings: net: dsa: qca8k: Document support for CPU port 6 Ansuel Smith
2021-10-11 1:50 ` Florian Fainelli
2021-10-11 2:02 ` Ansuel Smith
2021-10-11 1:30 ` [net-next PATCH v5 05/14] drivers: net: dsa: qca8k: add support for cpu " Ansuel Smith
2021-10-11 2:01 ` Florian Fainelli
2021-10-11 4:49 ` DENG Qingfang
2021-10-11 1:30 ` [net-next PATCH v5 06/14] net: dsa: qca8k: rework rgmii delay logic and scan " Ansuel Smith
2021-10-11 2:11 ` Florian Fainelli
2021-10-11 2:45 ` Florian Fainelli
2021-10-11 5:15 ` kernel test robot
2021-10-11 5:15 ` kernel test robot
2021-10-11 1:30 ` Ansuel Smith [this message]
2021-10-11 1:30 ` [net-next PATCH v5 08/14] net: dsa: qca8k: add explicit SGMII PLL enable Ansuel Smith
2021-10-11 2:46 ` Florian Fainelli
2021-10-11 1:30 ` [net-next PATCH v5 09/14] dt-bindings: net: dsa: qca8k: Document qca,led-open-drain binding Ansuel Smith
2021-10-11 1:30 ` [net-next PATCH v5 10/14] drivers: net: dsa: qca8k: add support for pws config reg Ansuel Smith
2021-10-11 2:48 ` Florian Fainelli
2021-10-11 1:30 ` [net-next PATCH v5 11/14] dt-bindings: net: dsa: qca8k: document support for qca8328 Ansuel Smith
2021-10-11 1:58 ` Florian Fainelli
2021-10-11 1:30 ` [net-next PATCH v5 12/14] drivers: net: dsa: qca8k: add support for QCA8328 Ansuel Smith
2021-10-11 2:42 ` Florian Fainelli
2021-10-11 1:30 ` [net-next PATCH v5 13/14] drivers: net: dsa: qca8k: set internal delay also for sgmii Ansuel Smith
2021-10-11 2:44 ` Florian Fainelli
2021-10-11 1:30 ` [net-next PATCH v5 14/14] drivers: net: dsa: qca8k: move port config to dedicated struct Ansuel Smith
2021-10-11 2:47 ` Florian Fainelli
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