From: JC Kuo <jckuo@nvidia.com> To: gregkh@linuxfoundation.org, thierry.reding@gmail.com, jonathanh@nvidia.com Cc: linux-tegra@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, nkristam@nvidia.com, skomatineni@nvidia.com, JC Kuo <jckuo@nvidia.com> Subject: [PATCH v2 5/7] dt-bindings: phy: tegra: Add Tegra194 support Date: Fri, 4 Oct 2019 16:19:39 +0800 [thread overview] Message-ID: <20191004081941.4831-6-jckuo@nvidia.com> (raw) In-Reply-To: <20191004081941.4831-1-jckuo@nvidia.com> Extend the bindings to cover the set of features found in Tegra194. Note that, technically, there are four more supplies connected to the XUSB pad controller (DVDD_PEX, DVDD_PEX_PLL, HVDD_PEX and HVDD_PEX_PLL) , but the power sequencing requirements of Tegra194 require these to be under the control of the PMIC. Tegra194 XUSB PADCTL supports up to USB 3.1 Gen 2 speed, however, it is possible for some platforms have long signal trace that could not provide sufficient electrical environment for Gen 2 speed. To deal with this, a new device node property "nvidia,disable-gen2" was added to Tegra194 that be used to specifically disable Gen 2 speed for a particular USB 3.0 port so that the port can be limited to Gen 1 speed and avoid the instability. Signed-off-by: JC Kuo <jckuo@nvidia.com> --- Changes in v2: - fix a typo .../bindings/phy/nvidia,tegra124-xusb-padctl.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt b/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt index 9fb682e47c29..59d870fa42e9 100644 --- a/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt +++ b/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt @@ -37,6 +37,7 @@ Required properties: - Tegra132: "nvidia,tegra132-xusb-padctl", "nvidia,tegra124-xusb-padctl" - Tegra210: "nvidia,tegra210-xusb-padctl" - Tegra186: "nvidia,tegra186-xusb-padctl" + - Tegra194: "nvidia,tegra194-xusb-padctl" - reg: Physical base address and length of the controller's registers. - resets: Must contain an entry for each entry in reset-names. - reset-names: Must include the following entries: @@ -62,6 +63,10 @@ For Tegra186: - vclamp-usb-supply: Bias rail for USB pad. Must supply 1.8 V. - vddio-hsic-supply: HSIC PHY power supply. Must supply 1.2 V. +For Tegra194: +- avdd-usb-supply: USB I/Os, VBUS, ID, REXT, D+/D- power supply. Must supply + 3.3 V. +- vclamp-usb-supply: Bias rail for USB pad. Must supply 1.8 V. Pad nodes: ========== @@ -154,6 +159,11 @@ For Tegra210, the list of valid PHY nodes is given below: - sata: sata-0 - functions: "usb3-ss", "sata" +For Tegra194, the list of valid PHY nodes is given below: +- usb2: usb2-0, usb2-1, usb2-2, usb2-3 + - functions: "xusb" +- usb3: usb3-0, usb3-1, usb3-2, usb3-3 + - functions: "xusb" Port nodes: =========== @@ -221,6 +231,9 @@ Optional properties: is internal. In the absence of this property the port is considered to be external. +- nvidia,disable-gen2: A boolean property whose presence determines that a port + should be limited to USB 3.1 Gen 1. This property is only for Tegra194. + For Tegra124 and Tegra132, the XUSB pad controller exposes the following ports: - 3x USB2: usb2-0, usb2-1, usb2-2 @@ -233,6 +246,9 @@ For Tegra210, the XUSB pad controller exposes the following ports: - 2x HSIC: hsic-0, hsic-1 - 4x super-speed USB: usb3-0, usb3-1, usb3-2, usb3-3 +For Tegra194, the XUSB pad controller exposes the following ports: +- 4x USB2: usb2-0, usb2-1, usb2-2, usb2-3 +- 4x super-speed USB: usb3-0, usb3-1, usb3-2, usb3-3 Examples: ========= -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: JC Kuo <jckuo@nvidia.com> To: <gregkh@linuxfoundation.org>, <thierry.reding@gmail.com>, <jonathanh@nvidia.com> Cc: <linux-tegra@vger.kernel.org>, <linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>, <nkristam@nvidia.com>, <skomatineni@nvidia.com>, JC Kuo <jckuo@nvidia.com> Subject: [PATCH v2 5/7] dt-bindings: phy: tegra: Add Tegra194 support Date: Fri, 4 Oct 2019 16:19:39 +0800 [thread overview] Message-ID: <20191004081941.4831-6-jckuo@nvidia.com> (raw) In-Reply-To: <20191004081941.4831-1-jckuo@nvidia.com> Extend the bindings to cover the set of features found in Tegra194. Note that, technically, there are four more supplies connected to the XUSB pad controller (DVDD_PEX, DVDD_PEX_PLL, HVDD_PEX and HVDD_PEX_PLL) , but the power sequencing requirements of Tegra194 require these to be under the control of the PMIC. Tegra194 XUSB PADCTL supports up to USB 3.1 Gen 2 speed, however, it is possible for some platforms have long signal trace that could not provide sufficient electrical environment for Gen 2 speed. To deal with this, a new device node property "nvidia,disable-gen2" was added to Tegra194 that be used to specifically disable Gen 2 speed for a particular USB 3.0 port so that the port can be limited to Gen 1 speed and avoid the instability. Signed-off-by: JC Kuo <jckuo@nvidia.com> --- Changes in v2: - fix a typo .../bindings/phy/nvidia,tegra124-xusb-padctl.txt | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt b/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt index 9fb682e47c29..59d870fa42e9 100644 --- a/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt +++ b/Documentation/devicetree/bindings/phy/nvidia,tegra124-xusb-padctl.txt @@ -37,6 +37,7 @@ Required properties: - Tegra132: "nvidia,tegra132-xusb-padctl", "nvidia,tegra124-xusb-padctl" - Tegra210: "nvidia,tegra210-xusb-padctl" - Tegra186: "nvidia,tegra186-xusb-padctl" + - Tegra194: "nvidia,tegra194-xusb-padctl" - reg: Physical base address and length of the controller's registers. - resets: Must contain an entry for each entry in reset-names. - reset-names: Must include the following entries: @@ -62,6 +63,10 @@ For Tegra186: - vclamp-usb-supply: Bias rail for USB pad. Must supply 1.8 V. - vddio-hsic-supply: HSIC PHY power supply. Must supply 1.2 V. +For Tegra194: +- avdd-usb-supply: USB I/Os, VBUS, ID, REXT, D+/D- power supply. Must supply + 3.3 V. +- vclamp-usb-supply: Bias rail for USB pad. Must supply 1.8 V. Pad nodes: ========== @@ -154,6 +159,11 @@ For Tegra210, the list of valid PHY nodes is given below: - sata: sata-0 - functions: "usb3-ss", "sata" +For Tegra194, the list of valid PHY nodes is given below: +- usb2: usb2-0, usb2-1, usb2-2, usb2-3 + - functions: "xusb" +- usb3: usb3-0, usb3-1, usb3-2, usb3-3 + - functions: "xusb" Port nodes: =========== @@ -221,6 +231,9 @@ Optional properties: is internal. In the absence of this property the port is considered to be external. +- nvidia,disable-gen2: A boolean property whose presence determines that a port + should be limited to USB 3.1 Gen 1. This property is only for Tegra194. + For Tegra124 and Tegra132, the XUSB pad controller exposes the following ports: - 3x USB2: usb2-0, usb2-1, usb2-2 @@ -233,6 +246,9 @@ For Tegra210, the XUSB pad controller exposes the following ports: - 2x HSIC: hsic-0, hsic-1 - 4x super-speed USB: usb3-0, usb3-1, usb3-2, usb3-3 +For Tegra194, the XUSB pad controller exposes the following ports: +- 4x USB2: usb2-0, usb2-1, usb2-2, usb2-3 +- 4x super-speed USB: usb3-0, usb3-1, usb3-2, usb3-3 Examples: ========= -- 2.17.1
next prev parent reply other threads:[~2019-10-04 8:19 UTC|newest] Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-10-04 8:19 [PATCH v2 0/7] add Tegra194 XUSB host and pad controller support JC Kuo 2019-10-04 8:19 ` JC Kuo 2019-10-04 8:19 ` [PATCH v2 1/7] xhci: tegra: Parameterize mailbox register addresses JC Kuo 2019-10-04 8:19 ` JC Kuo 2019-10-04 8:19 ` [PATCH v2 2/7] usb: host: xhci-tegra: Add Tegra194 XHCI support JC Kuo 2019-10-04 8:19 ` JC Kuo 2019-10-04 8:19 ` [PATCH v2 3/7] phy: tegra: xusb: Protect Tegra186 soc with config JC Kuo 2019-10-04 8:19 ` JC Kuo 2019-10-04 8:19 ` [PATCH v2 4/7] phy: tegra: xusb: Add Tegra194 support JC Kuo 2019-10-04 8:19 ` JC Kuo 2019-10-04 8:19 ` JC Kuo [this message] 2019-10-04 8:19 ` [PATCH v2 5/7] dt-bindings: phy: tegra: " JC Kuo 2019-10-04 8:19 ` [PATCH v2 6/7] arm64: tegra: Add XUSB and pad controller on Tegra194 JC Kuo 2019-10-04 8:19 ` JC Kuo 2019-10-04 8:19 ` [PATCH v2 7/7] arm64: tegra: Enable XUSB host in P2972-0000 board JC Kuo 2019-10-04 8:19 ` JC Kuo 2019-10-04 12:23 ` [PATCH v2 0/7] add Tegra194 XUSB host and pad controller support Greg KH 2019-10-04 16:08 ` JC Kuo 2019-10-04 16:08 ` JC Kuo
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