From: Grygorii Strashko <grygorii.strashko@ti.com>
To: "David S. Miller" <davem@davemloft.net>,
Tony Lindgren <tony@atomide.com>,
Kishon Vijay Abraham I <kishon@ti.com>,
Rob Herring <robh+dt@kernel.org>
Cc: <netdev@vger.kernel.org>, Sekhar Nori <nsekhar@ti.com>,
<linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Andrew Lunn <andrew@lunn.ch>, <devicetree@vger.kernel.org>,
<linux-omap@vger.kernel.org>,
Grygorii Strashko <grygorii.strashko@ti.com>
Subject: [PATCH linux-next 01/10] dt-bindings: phy: add cpsw port interface mode selection phy bindings
Date: Sun, 25 Nov 2018 18:15:22 -0600 [thread overview]
Message-ID: <20181126001531.12974-2-grygorii.strashko@ti.com> (raw)
In-Reply-To: <20181126001531.12974-1-grygorii.strashko@ti.com>
Add CPSW Port's Interface Mode Selection PHY (phy-gmii-sel) DT Bindings
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
---
.../devicetree/bindings/phy/ti-phy-gmii-sel.txt | 68 ++++++++++++++++++++++
1 file changed, 68 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/ti-phy-gmii-sel.txt
diff --git a/Documentation/devicetree/bindings/phy/ti-phy-gmii-sel.txt b/Documentation/devicetree/bindings/phy/ti-phy-gmii-sel.txt
new file mode 100644
index 0000000..50ce9ae
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/ti-phy-gmii-sel.txt
@@ -0,0 +1,68 @@
+CPSW Port's Interface Mode Selection PHY Tree Bindings
+-----------------------------------------------
+
+TI am335x/am437x/dra7(am5)/dm814x CPSW3G Ethernet Subsystem supports
+two 10/100/1000 Ethernet ports with selectable G/MII, RMII, and RGMII interfaces.
+The interface mode is selected by configuring the MII mode selection register(s)
+(GMII_SEL) in the System Control Module chapter (SCM). GMII_SEL register(s) and
+bit fields placement in SCM are different between SoCs while fields meaning
+is the same.
+ +--------------+
+ +-------------------------------+ |SCM |
+ | CPSW | | +---------+ |
+ | +--------------------------------+gmii_sel | |
+ | | | | +---------+ |
+ | +----v---+ +--------+ | +--------------+
+ | |Port 1..<--+-->GMII/MII<------->
+ | | | | | | |
+ | +--------+ | +--------+ |
+ | | |
+ | | +--------+ |
+ | | | RMII <------->
+ | +--> | |
+ | | +--------+ |
+ | | |
+ | | +--------+ |
+ | | | RGMII <------->
+ | +--> | |
+ | +--------+ |
+ +-------------------------------+
+
+CPSW Port's Interface Mode Selection PHY describes MII interface mode between
+CPSW Port and Ethernet PHY which depends on Eth PHY and board configuration.
+
+CPSW Port's Interface Mode Selection PHY device should defined as child device
+of SCM node (scm_conf) and can be attached to each CPSW port node using standard
+PHY bindings (See phy/phy-bindings.txt).
+
+Required properties:
+- compatible : Should be "ti,am3352-phy-gmii-sel" for am335x platform
+ "ti,dra7xx-phy-gmii-sel" for dra7xx/am57xx platform
+ "ti,am43xx-phy-gmii-sel" for am43xx platform
+ "ti,dm814-phy-gmii-sel" for dm814x platform
+- reg : Address and length of the register set for the device
+- #phy-cells : must be 2.
+ cell 1 - CPSW port number (starting from 1)
+ cell 2 - RMII refclk mode
+
+Examples:
+ phy_gmii_sel: phy-gmii-sel {
+ compatible = "ti,am3352-phy-gmii-sel";
+ reg = <0x650 0x4>;
+ #phy-cells = <2>;
+ };
+
+ mac: ethernet@4a100000 {
+ compatible = "ti,am335x-cpsw","ti,cpsw";
+ ...
+
+ cpsw_emac0: slave@4a100200 {
+ ...
+ phys = <&phy_gmii_sel 1 1>;
+ };
+
+ cpsw_emac1: slave@4a100300 {
+ ...
+ phys = <&phy_gmii_sel 2 1>;
+ };
+ };
--
2.10.5
next prev parent reply other threads:[~2018-11-26 0:16 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-26 0:15 [PATCH linux-next 00/10] net: ethernet: ti: cpsw: replace cpsw-phy-sel with phy driver Grygorii Strashko
2018-11-26 0:15 ` Grygorii Strashko [this message]
2018-11-27 18:22 ` [PATCH linux-next 01/10] dt-bindings: phy: add cpsw port interface mode selection phy bindings Tony Lindgren
2018-11-26 0:15 ` [PATCH linux-next 02/10] phy: ti: introduce phy-gmii-sel driver Grygorii Strashko
2018-11-26 0:15 ` [PATCH linux-next 03/10] dt-bindings: net: ti: cpsw: switch to use phy-gmii-sel phy Grygorii Strashko
2018-11-26 0:15 ` [PATCH linux-next 04/10] net: ethernet: ti: cpsw: add support for port interface mode selection phy Grygorii Strashko
2018-11-26 0:15 ` [PATCH linux-next 05/10] ARM: dts: dra7: switch to use phy-gmii-sel Grygorii Strashko
2018-11-26 0:15 ` [PATCH linux-next 06/10] ARM: dts: dm814x: " Grygorii Strashko
2018-11-26 0:15 ` [PATCH linux-next 07/10] ARM: dts: am4372: " Grygorii Strashko
2018-11-26 0:15 ` [PATCH linux-next 08/10] ARM: dts: am335x: " Grygorii Strashko
2018-11-26 0:15 ` [PATCH linux-next 09/10] dt-bindings: net: ti: deprecate cpsw-phy-sel bindings Grygorii Strashko
2018-11-26 19:58 ` Rob Herring
2018-11-27 18:29 ` Grygorii Strashko
2018-11-26 0:15 ` [PATCH linux-next 10/10] net: ethernet: ti: cpsw: deprecate cpsw-phy-sel driver Grygorii Strashko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20181126001531.12974-2-grygorii.strashko@ti.com \
--to=grygorii.strashko@ti.com \
--cc=andrew@lunn.ch \
--cc=davem@davemloft.net \
--cc=devicetree@vger.kernel.org \
--cc=kishon@ti.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-omap@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=nsekhar@ti.com \
--cc=robh+dt@kernel.org \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).