From patchwork Fri Jan 3 08:18:12 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: JC Kuo X-Patchwork-Id: 11316547 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 08803139A for ; Fri, 3 Jan 2020 08:18:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D9B542464E for ; Fri, 3 Jan 2020 08:18:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="gXirWtxS" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727479AbgACIS2 (ORCPT ); Fri, 3 Jan 2020 03:18:28 -0500 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:17285 "EHLO hqnvemgate24.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726295AbgACIS1 (ORCPT ); Fri, 3 Jan 2020 03:18:27 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Fri, 03 Jan 2020 00:17:42 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Fri, 03 Jan 2020 00:18:26 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Fri, 03 Jan 2020 00:18:26 -0800 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Fri, 3 Jan 2020 08:18:25 +0000 Received: from rnnvemgw01.nvidia.com (10.128.109.123) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Fri, 3 Jan 2020 08:18:25 +0000 Received: from jckuo-lt.nvidia.com (Not Verified[10.19.108.118]) by rnnvemgw01.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Fri, 03 Jan 2020 00:18:25 -0800 From: JC Kuo To: , , , , CC: , , , , , JC Kuo Subject: [PATCH v5 3/5] dt-bindings: phy: tegra: Add Tegra194 support Date: Fri, 3 Jan 2020 16:18:12 +0800 Message-ID: <20200103081814.9848-4-jckuo@nvidia.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200103081814.9848-1-jckuo@nvidia.com> References: <20200103081814.9848-1-jckuo@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1578039462; bh=iYyIXUxkirPSBJ7iu5TXTf34bSdyG8fxwUBD40kVdj0=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=gXirWtxSFL6a5mIjmhdwWMybAMIgl1VUE9k5qaaUwQktt40sNHmgYer3xBdKDqfxR NagZurg4X6ZUzbaklOtPMpiMen8U7/xdETMWnZkTRHAhBEaTldB0W8qebz5rwhqVim r0o/AS5HHcfc3LY6KI62w/UcDsuc2P/rSTWMkz77mVDJpFNrCX271kusEB8gvNgNhO 1IGxqdKmKtMKY4GjEB6rgm5S3w5d2S2pp0q3wteg694/iVDKqmEjNnphpzaY5K0p55 TkiZLhFZPQzB3Ormvc/dqCeLzQjO0DEibLbM6bRp45xQlQ+OqatEwfghIJPrM/S+l4 18kuZh6G5eUJg== Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org 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. This patch adds a "maximum-speed" property to usb3 ports which can be used to specify the maximum supported speed for any particular USB 3.1 port. For a port that is not capable of SuperSpeedPlus, "maximum-speed" property should carry "super-speed". Signed-off-by: JC Kuo --- Changes in v5: - re-use "maximum-speed" instead of adding "nvidia,disable-gen2" Changes in v4: none Changes in v3: none Changes in v2: - fix a typo .../phy/nvidia,tegra124-xusb-padctl.txt | 18 ++++++++++++++++++ 1 file changed, 18 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..7d0089006e67 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 +231,11 @@ Optional properties: is internal. In the absence of this property the port is considered to be external. +- maximum-speed: Only for Tegra194. A string property that specifies maximum + supported speed of a usb3 port. Valid values are: + - "super-speed-plus": default, the usb3 port supports USB 3.1 Gen 2 speed. + - "super-speed": the usb3 port supports USB 3.1 Gen 1 speed only. + For Tegra124 and Tegra132, the XUSB pad controller exposes the following ports: - 3x USB2: usb2-0, usb2-1, usb2-2 @@ -233,6 +248,9 @@ 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: =========