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Fri, 5 Jun 2020 16:25:38 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 5 Jun 2020 16:25:36 +0800 From: Chunfeng Yun To: Lukasz Majewski , Marek Vasut CC: Mingming lee , Ryder Lee , Weijie Gao , Simon Glass , Bin Meng , Jagan Teki , Heinrich Schuchardt , Kever Yang , Fabio Estevam , Fabien Parent , Chunfeng Yun , Michal Simek , Roger Quadros , Siva Durga Prasad Paladugu , T Karthik Reddy , , GSS_MTK_Uboot_upstream Subject: [PATCH 1/6] dt-binding: usb: add bindings for some common properties Date: Fri, 5 Jun 2020 16:22:56 +0800 Message-ID: <1591345381-2780-2-git-send-email-chunfeng.yun@mediatek.com> X-Mailer: git-send-email 1.8.1.1.dirty In-Reply-To: <1591345381-2780-1-git-send-email-chunfeng.yun@mediatek.com> References: <1591345381-2780-1-git-send-email-chunfeng.yun@mediatek.com> MIME-Version: 1.0 X-MTK: N X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.30rc1 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.102.2 at phobos.denx.de X-Virus-Status: Clean Add bindings for common properties, include maximum-speed, dr_mode and phy_type Signed-off-by: Chunfeng Yun --- doc/device-tree-bindings/usb/generic.txt | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 doc/device-tree-bindings/usb/generic.txt diff --git a/doc/device-tree-bindings/usb/generic.txt b/doc/device-tree-bindings/usb/generic.txt new file mode 100644 index 0000000..a02a198 --- /dev/null +++ b/doc/device-tree-bindings/usb/generic.txt @@ -0,0 +1,31 @@ +Generic USB Properties + +Optional properties: + - maximum-speed: tells USB controllers we want to work up to a certain + speed. Valid arguments are "super-speed-plus", + "super-speed", "high-speed", "full-speed" and + "low-speed". In case this isn't passed via DT, USB + controllers should default to their maximum HW + capability. + - dr_mode: tells Dual-Role USB controllers that we want to work on a + particular mode. Valid arguments are "host", + "peripheral" and "otg". In case this attribute isn't + passed via DT, USB DRD controllers should default to + OTG. + - phy_type: tells USB controllers that we want to configure the core to support + a UTMI+ PHY with an 8- or 16-bit interface if UTMI+ is + selected. Valid arguments are "utmi" and "utmi_wide". + In case this isn't passed via DT, USB controllers should + default to HW capability. + +This is an attribute to a USB controller such as: + +dwc3@4a030000 { + compatible = "synopsys,dwc3"; + reg = <0x4a030000 0xcfff>; + interrupts = <0 92 4> + usb-phy = <&usb2_phy>, <&usb3,phy>; + maximum-speed = "super-speed"; + dr_mode = "otg"; + phy_type = "utmi_wide"; +};