From patchwork Tue Jun 16 18:45:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= X-Patchwork-Id: 11608443 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 25B0F138C for ; Tue, 16 Jun 2020 18:46:02 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 00CA72098B for ; Tue, 16 Jun 2020 18:46:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="c9KWKz/T"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="XDv5Z/iY" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 00CA72098B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Ua3063YL3aB3hmJ6d+Ut/kST5haGeY/Iv9arRWp1TWk=; b=c9KWKz/TKv7CNg 8UyAH+C/+RCALFgpy5M1QTz5DTINRnV/VyOBGLTTiMYHtlmS6MicnGWw3NrLyrFY8Col+oROXox7+ zi3zLCo8aWt31jblpu69ut19PMa1RLrKZrRdM0x+A7dVOexCOihISfdOGH7hiVtqEgp8vy+fQkSI5 2Na9vm1m3OmXisd6KGkyB1Rl7m/DsCUzFzUKyGWTSdcqHEN8W1dWRqxrEuTj2sU7iMdBgfTca7AWu EAHJ0Zdm3NfknnCSuRLsrb0aibxTD7/vnUhRucdA0FjzY47tRiQH7c+PZimL2WyXFDlk1HOpvdfpd LUrkzpKfTPrXC8RA0Jmw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jlGat-0008IN-Ee; Tue, 16 Jun 2020 18:45:59 +0000 Received: from mail-wm1-x334.google.com ([2a00:1450:4864:20::334]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jlGah-000892-8N for linux-arm-kernel@lists.infradead.org; Tue, 16 Jun 2020 18:45:48 +0000 Received: by mail-wm1-x334.google.com with SMTP id f185so4153040wmf.3 for ; Tue, 16 Jun 2020 11:45:46 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=YMgA4YJ/qbECneRtetKCJmuDx4PxuOukQg7g/2crGKA=; b=XDv5Z/iYeTJ6vRnmkeD73r2vASjq0XQ/6aeW2+c0/m/WzbCOV+S8g5ya9ksurkHCOf umKx4XwA/E7X5+6KsaHSkP7cBcuEX+lt1nyPjIXpxcJ/QzKscKXzV86IBf3bQqnwMG/t 2RDMj+XIREq17ukVHhccGr41OGFquevUfoJuP3JnGtM0VHFoTyOny3Md8Wr8at8/NEDV tkvKryTUGBIAtt0vpUSB2Pb2t9EDDSnd54YgWrAZ0qh1RT+CgLR3sXHZAlevSAJqsH/R eCSGwaozu0d6o1zphS2Bs6rrNa6QZ/kjYYzKx9tU/3kLy1E4E2mAYmWw2Lg3u4ngL4Pr afEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=YMgA4YJ/qbECneRtetKCJmuDx4PxuOukQg7g/2crGKA=; b=lpXYxmb5vgztDPRzFCSbFtViEfNymOB9aZfeV6IicHLn0BxFUp3xbiqcZ0/PWzzH0A iAsNaZSMKbOfgTEASL/fPh2Vid7j3J8clhxghcGiVMSybc42zi4PEySNdx2qE2v5fFMF KkleOY0ciZuYKg2hlc7qbEwP7fREUuCH35LATTEj8Ss9ly2idyKVD0ivIt+Od2d8f+R/ ST30cSOVSogilrQ8uAtT1LzAQ2bOtsCUzPNiMTMSWIQ1KmYaGwz3CA13eIrl+vxL3mH3 C46fInIMrtutEbxte9UhbIaCy0prs7I1eAMXEbTu3IKP779EHlFscdcq0NvZ88bdBuAO tasg== X-Gm-Message-State: AOAM530ohGIEQ7MV5wmMNDodsFuJwQUKktfbEehVWTqxc1KSz5rt0Xsh hK6rCbX+QoRUKaTba2uXzNg= X-Google-Smtp-Source: ABdhPJyyzLEab3tlZohjF60/d333MbM6aVxfC5uG4JauZWjsw2Da5X6n3CGsGR33Txl0YsoWhijvvA== X-Received: by 2002:a1c:9d53:: with SMTP id g80mr4858240wme.13.1592333145726; Tue, 16 Jun 2020 11:45:45 -0700 (PDT) Received: from skynet.lan (90.red-88-20-62.staticip.rima-tde.net. [88.20.62.90]) by smtp.gmail.com with ESMTPSA id q11sm30528707wrv.67.2020.06.16.11.45.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Jun 2020 11:45:45 -0700 (PDT) From: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= To: simon@fire.lp0.eu, jonas.gorski@gmail.com, kishon@ti.com, vkoul@kernel.org, robh+dt@kernel.org, f.fainelli@gmail.com, bcm-kernel-feedback-list@broadcom.com, p.zabel@pengutronix.de, krzk@kernel.org, gregkh@linuxfoundation.org, alcooperx@gmail.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 1/2] dt-bindings: phy: add bcm63xx-usbh bindings Date: Tue, 16 Jun 2020 20:45:41 +0200 Message-Id: <20200616184542.3504965-2-noltari@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200616184542.3504965-1-noltari@gmail.com> References: <20200616184542.3504965-1-noltari@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200616_114547_295903_33F65F06 X-CRM114-Status: GOOD ( 10.41 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:334 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [noltari[at]gmail.com] -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Document BCM63xx USBH PHY bindings. Signed-off-by: Álvaro Fernández Rojas Reviewed-by: Florian Fainelli --- v3: no changes v2: phy-cells changed to 1. .../bindings/phy/brcm,bcm63xx-usbh-phy.yaml | 72 +++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml diff --git a/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml b/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml new file mode 100644 index 000000000000..9ef2c1f8aa00 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/brcm,bcm63xx-usbh-phy.yaml @@ -0,0 +1,72 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/phy/brcm,bcm63xx-usbh-phy.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: BCM63xx USBH PHY + +maintainers: + - Álvaro Fernández Rojas + +properties: + compatible: + enum: + - brcm,bcm6318-usbh-phy + - brcm,bcm6328-usbh-phy + - brcm,bcm6358-usbh-phy + - brcm,bcm6362-usbh-phy + - brcm,bcm6368-usbh-phy + - brcm,bcm63268-usbh-phy + + reg: + maxItems: 1 + + clocks: + maxItems: 2 + + clock-names: + items: + - const: usbh + - const: usb_ref + + resets: + maxItems: 1 + + "#phy-cells": + const: 1 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - "#phy-cells" + +if: + properties: + compatible: + enum: + - brcm,bcm6318-usbh-phy + - brcm,bcm6328-usbh-phy + - brcm,bcm6362-usbh-phy + - brcm,bcm63268-usbh-phy + +then: + properties: + power-domains: + maxItems: 1 + required: + - power-domains + +examples: + - | + usbh: usb-phy@10001700 { + compatible = "brcm,bcm6368-usbh-phy"; + reg = <0x10001700 0x38>; + clocks = <&periph_clk BCM6368_CLK_USBH>; + clock-names = "usbh"; + resets = <&periph_rst BCM6368_RST_USBH>; + #phy-cells = <1>; + }; From patchwork Tue Jun 16 18:45:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= X-Patchwork-Id: 11608445 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 8A53B912 for ; Tue, 16 Jun 2020 18:46:27 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 36976207C4 for ; Tue, 16 Jun 2020 18:46:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Rk4zPoKZ"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ttoK+iT5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 36976207C4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=74CoWCygXvKz9eUhEv77VAQOdrsJ3yZRJys/zRMlVro=; b=Rk4zPoKZSynmZZ xbcAG5HUptGETYtBqn3i6KVc/tglQV5vN8zlMwArpL0klyE7BihW7uCaRNaeYg6gi3ZEDXX0uaMND lbwBNcRJynZ9mRgsoLqW7qGQ76ektdU7V81TySBIjVwBjZrLq0BJWL/B63217pnmOSAwyg2RtQ0s0 gSsgOq8m3cxUTjjGkGzLkdj8l4ajCrUcn6W1165cRh+YGtPtX8/vkMZHUbhF01hA0OjonrJTA3UuZ k1tMm35WM/TWnO3NNS00cWJPWuwxa5y9zZ6hWTPZHFU6KkwHnExob1lqn9dg3znM/RLsIswQ7M/eO Ilu10Z3IDp+fuLdYS4GQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jlGbB-00007L-Nj; Tue, 16 Jun 2020 18:46:17 +0000 Received: from mail-wm1-x344.google.com ([2a00:1450:4864:20::344]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jlGai-00089M-M8 for linux-arm-kernel@lists.infradead.org; Tue, 16 Jun 2020 18:45:51 +0000 Received: by mail-wm1-x344.google.com with SMTP id b82so3849910wmb.1 for ; Tue, 16 Jun 2020 11:45:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=vdi3H2C/jQuyG7WR8KBqwcaxDEh5+6Bh4PRaCFGZApc=; b=ttoK+iT5v54o+ozc7iSNEMJWme4D9KPsqbec/RShIFlZEsqwv7nW4LOobZeYXK+rCN Lf5KC7Q3yI6B2Pu0zu+pMfM+4G2K4vVW4n1qiDcyowt3/o2COsXm8EQpC0kIhh4e1hfY Fj4JL8f48PPKeJ27KUnAECEWB4shocB6vzKOwDIbJNtPmpWtYMC0fw+ry5ttvVjqxHeX H7egn2lwMhiUq8DU0vpDM9tBdk5IhK26aMA2EKg84ZOSPZwHE5RkhiThTGLPvY90E74r HImBQXVQRLQ07BgDnGfsLEcR0FiLPsbdfa0aNeSYtIBjoIdqoytT/o7yfMB5U6yPUKTn HLIQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=vdi3H2C/jQuyG7WR8KBqwcaxDEh5+6Bh4PRaCFGZApc=; b=osIrE01DQWAIR/heUlngzaL72ZzkWtsrOIinzG/0ujty36XkSYSdc7KfERg/xj9j9k WG6418JqeZ/2wAIQfP/R5s9e9s9bDcSumWj4FOY8xfbcqf+RwQJY2bnuos6A/0W8HOXX It0S1eaS/ObG+SlbZda6ogTagiKZ45pkHrp7CHQfzoJ2wUv7ZOaxpfuW5cXY96u7wpjt paDbr4vi0SU0wpeAkdRDXb+bds/QlpcNIxXvcYVkHLql2GBrM6Nbf17JmphP067/OXRQ CF4z6KVEvT7yYZuQOEtE9CdKa0WRMTQWHjjdNZPgMDbmsnOA78k2U1ZXA5D4pvQXKWqI qQOg== X-Gm-Message-State: AOAM533c2YNF2CKLnMTIP2r28A1CWUIG+P4kHopPERvw3AqR+Dzsq02G UI22TaXJvAhG+paekN61smE= X-Google-Smtp-Source: ABdhPJx8miejefYpdnSzJ2sGiZUVWiw6+05YNRxTgUFfx/SeWTuJIxITkyeIogXgJb5zfOUPTHzDyw== X-Received: by 2002:a1c:c203:: with SMTP id s3mr4524581wmf.174.1592333146859; Tue, 16 Jun 2020 11:45:46 -0700 (PDT) Received: from skynet.lan (90.red-88-20-62.staticip.rima-tde.net. [88.20.62.90]) by smtp.gmail.com with ESMTPSA id q11sm30528707wrv.67.2020.06.16.11.45.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 16 Jun 2020 11:45:46 -0700 (PDT) From: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= To: simon@fire.lp0.eu, jonas.gorski@gmail.com, kishon@ti.com, vkoul@kernel.org, robh+dt@kernel.org, f.fainelli@gmail.com, bcm-kernel-feedback-list@broadcom.com, p.zabel@pengutronix.de, krzk@kernel.org, gregkh@linuxfoundation.org, alcooperx@gmail.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v3 2/2] phy: bcm63xx-usbh: Add BCM63xx USBH driver Date: Tue, 16 Jun 2020 20:45:42 +0200 Message-Id: <20200616184542.3504965-3-noltari@gmail.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200616184542.3504965-1-noltari@gmail.com> References: <20200616184542.3504965-1-noltari@gmail.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200616_114548_770964_6F8CB209 X-CRM114-Status: GOOD ( 19.13 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:344 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider [noltari[at]gmail.com] -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?utf-8?q?=C3=81lvaro_Fern=C3=A1ndez_Rojas?= Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add BCM63xx USBH PHY driver for BMIPS. Signed-off-by: Álvaro Fernández Rojas --- v3: introduce changes suggested by Florian: - Add support for device mode. v2: introduce changes suggested by Florian: - Drop OF dependency (use device_get_match_data). - Drop __initconst from variant tables. - Use devm_clk_get_optional. drivers/phy/broadcom/Kconfig | 9 + drivers/phy/broadcom/Makefile | 1 + drivers/phy/broadcom/phy-bcm63xx-usbh.c | 456 ++++++++++++++++++++++++ 3 files changed, 466 insertions(+) create mode 100644 drivers/phy/broadcom/phy-bcm63xx-usbh.c diff --git a/drivers/phy/broadcom/Kconfig b/drivers/phy/broadcom/Kconfig index b29f11c19155..a7889df8c541 100644 --- a/drivers/phy/broadcom/Kconfig +++ b/drivers/phy/broadcom/Kconfig @@ -2,6 +2,15 @@ # # Phy drivers for Broadcom platforms # +config PHY_BCM63XX_USBH + tristate "BCM63xx USBH PHY driver" + depends on BMIPS_GENERIC || COMPILE_TEST + select GENERIC_PHY + default BMIPS_GENERIC + help + Enable this to support the BCM63xx USBH PHY driver. + If unsure, say N. + config PHY_CYGNUS_PCIE tristate "Broadcom Cygnus PCIe PHY driver" depends on OF && (ARCH_BCM_CYGNUS || COMPILE_TEST) diff --git a/drivers/phy/broadcom/Makefile b/drivers/phy/broadcom/Makefile index c78de546135c..7024127f86ad 100644 --- a/drivers/phy/broadcom/Makefile +++ b/drivers/phy/broadcom/Makefile @@ -1,4 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_PHY_BCM63XX_USBH) += phy-bcm63xx-usbh.o obj-$(CONFIG_PHY_CYGNUS_PCIE) += phy-bcm-cygnus-pcie.o obj-$(CONFIG_BCM_KONA_USB2_PHY) += phy-bcm-kona-usb2.o obj-$(CONFIG_PHY_BCM_NS_USB2) += phy-bcm-ns-usb2.o diff --git a/drivers/phy/broadcom/phy-bcm63xx-usbh.c b/drivers/phy/broadcom/phy-bcm63xx-usbh.c new file mode 100644 index 000000000000..584807205166 --- /dev/null +++ b/drivers/phy/broadcom/phy-bcm63xx-usbh.c @@ -0,0 +1,456 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * BCM6328 USBH PHY Controller Driver + * + * Copyright (C) 2020 Álvaro Fernández Rojas + * Copyright (C) 2015 Simon Arlott + * + * Derived from bcm963xx_4.12L.06B_consumer/kernel/linux/arch/mips/bcm963xx/setup.c: + * Copyright (C) 2002 Broadcom Corporation + * + * Derived from OpenWrt patches: + * Copyright (C) 2013 Jonas Gorski + * Copyright (C) 2013 Florian Fainelli + * Copyright (C) 2008 Maxime Bizon + */ + +#include +#include +#include +#include +#include +#include + +/* USBH control register offsets */ +enum usbh_regs { + USBH_BRT_CONTROL1 = 0, + USBH_BRT_CONTROL2, + USBH_BRT_STATUS1, + USBH_BRT_STATUS2, + USBH_UTMI_CONTROL1, + USBH_TEST_PORT_CONTROL, + USBH_PLL_CONTROL1, +#define USBH_PLLC_REFCLKSEL_SHIFT 0 +#define USBH_PLLC_REFCLKSEL_MASK (0x3 << USBH_PLLC_REFCLKSEL_SHIFT) +#define USBH_PLLC_CLKSEL_SHIFT 2 +#define USBH_PLLC_CLKSEL_MASK (0x3 << USBH_PLLC_CLKSEL_MASK) +#define USBH_PLLC_XTAL_PWRDWNB BIT(4) +#define USBH_PLLC_PLL_PWRDWNB BIT(5) +#define USBH_PLLC_PLL_CALEN BIT(6) +#define USBH_PLLC_PHYPLL_BYP BIT(7) +#define USBH_PLLC_PLL_RESET BIT(8) +#define USBH_PLLC_PLL_IDDQ_PWRDN BIT(9) +#define USBH_PLLC_PLL_PWRDN_DELAY BIT(10) +#define USBH_6318_PLLC_PLL_SUSPEND_EN BIT(27) +#define USBH_6318_PLLC_PHYPLL_BYP BIT(29) +#define USBH_6318_PLLC_PLL_RESET BIT(30) +#define USBH_6318_PLLC_PLL_IDDQ_PWRDN BIT(31) + USBH_SWAP_CONTROL, +#define USBH_SC_OHCI_DATA_SWAP BIT(0) +#define USBH_SC_OHCI_ENDIAN_SWAP BIT(1) +#define USBH_SC_OHCI_LOGICAL_ADDR_EN BIT(2) +#define USBH_SC_EHCI_DATA_SWAP BIT(3) +#define USBH_SC_EHCI_ENDIAN_SWAP BIT(4) +#define USBH_SC_EHCI_LOGICAL_ADDR_EN BIT(5) +#define USBH_SC_USB_DEVICE_SEL BIT(6) + USBH_GENERIC_CONTROL, +#define USBH_GC_PLL_SUSPEND_EN BIT(1) + USBH_FRAME_ADJUST_VALUE, + USBH_SETUP, +#define USBH_S_IOC BIT(4) +#define USBH_S_IPP BIT(5) + USBH_MDIO, + USBH_MDIO32, + USBH_USB_SIM_CONTROL, +#define USBH_USC_LADDR_SEL BIT(5) + + __USBH_ENUM_SIZE +}; + +struct bcm63xx_usbh_phy_variant { + /* USB Sim Control bits to set */ + u32 usc_set; + + /* Test Port Control value to set if non-zero */ + u32 tpc_val; + + /* Setup bits to set/clear for power on */ + u32 setup_set; + u32 setup_clr; + + /* PLLC bits to set/clear for power on */ + u32 power_pllc_set; + u32 power_pllc_clr; + + /* Device mode selectable */ + bool dev_mode; + + /* Registers */ + long regs[__USBH_ENUM_SIZE]; +}; + +struct bcm63xx_usbh_phy { + void __iomem *base; + struct clk *usbh_clk; + struct clk *usb_ref_clk; + struct reset_control *reset; + const struct bcm63xx_usbh_phy_variant *variant; + bool is_device; +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm6318 = { + .regs = { + [USBH_BRT_CONTROL1] = -1, + [USBH_BRT_CONTROL2] = -1, + [USBH_BRT_STATUS1] = -1, + [USBH_BRT_STATUS2] = -1, + [USBH_UTMI_CONTROL1] = 0x2c, + [USBH_TEST_PORT_CONTROL] = 0x1c, + [USBH_PLL_CONTROL1] = 0x04, + [USBH_SWAP_CONTROL] = 0x0c, + [USBH_GENERIC_CONTROL] = -1, + [USBH_FRAME_ADJUST_VALUE] = 0x08, + [USBH_SETUP] = 0x00, + [USBH_MDIO] = 0x14, + [USBH_MDIO32] = 0x18, + [USBH_USB_SIM_CONTROL] = 0x20, + }, + .setup_set = USBH_S_IOC, + .setup_clr = 0, + .usc_set = USBH_USC_LADDR_SEL, + .tpc_val = 0, + .power_pllc_set = USBH_6318_PLLC_PLL_SUSPEND_EN, + .power_pllc_clr = USBH_6318_PLLC_PLL_IDDQ_PWRDN, + .dev_mode = true, +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm6328 = { + .regs = { + [USBH_BRT_CONTROL1] = 0x00, + [USBH_BRT_CONTROL2] = 0x04, + [USBH_BRT_STATUS1] = 0x08, + [USBH_BRT_STATUS2] = 0x0c, + [USBH_UTMI_CONTROL1] = 0x10, + [USBH_TEST_PORT_CONTROL] = 0x14, + [USBH_PLL_CONTROL1] = 0x18, + [USBH_SWAP_CONTROL] = 0x1c, + [USBH_GENERIC_CONTROL] = 0x20, + [USBH_FRAME_ADJUST_VALUE] = 0x24, + [USBH_SETUP] = 0x28, + [USBH_MDIO] = 0x2c, + [USBH_MDIO32] = 0x30, + [USBH_USB_SIM_CONTROL] = 0x34, + }, + .setup_set = USBH_S_IOC, + .setup_clr = 0, + .usc_set = 0, + .tpc_val = 0, + .power_pllc_set = 0, + .power_pllc_clr = 0, + .dev_mode = true, +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm6358 = { + .regs = { + [USBH_BRT_CONTROL1] = -1, + [USBH_BRT_CONTROL2] = -1, + [USBH_BRT_STATUS1] = -1, + [USBH_BRT_STATUS2] = -1, + [USBH_UTMI_CONTROL1] = -1, + [USBH_TEST_PORT_CONTROL] = 0x24, + [USBH_PLL_CONTROL1] = -1, + [USBH_SWAP_CONTROL] = 0x00, + [USBH_GENERIC_CONTROL] = -1, + [USBH_FRAME_ADJUST_VALUE] = -1, + [USBH_SETUP] = -1, + [USBH_MDIO] = -1, + [USBH_MDIO32] = -1, + [USBH_USB_SIM_CONTROL] = -1, + }, + /* + * The magic value comes for the original vendor BSP + * and is needed for USB to work. Datasheet does not + * help, so the magic value is used as-is. + */ + .tpc_val = 0x1c0020, +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm6368 = { + .regs = { + [USBH_BRT_CONTROL1] = 0x00, + [USBH_BRT_CONTROL2] = 0x04, + [USBH_BRT_STATUS1] = 0x08, + [USBH_BRT_STATUS2] = 0x0c, + [USBH_UTMI_CONTROL1] = 0x10, + [USBH_TEST_PORT_CONTROL] = 0x14, + [USBH_PLL_CONTROL1] = 0x18, + [USBH_SWAP_CONTROL] = 0x1c, + [USBH_GENERIC_CONTROL] = -1, + [USBH_FRAME_ADJUST_VALUE] = 0x24, + [USBH_SETUP] = 0x28, + [USBH_MDIO] = 0x2c, + [USBH_MDIO32] = 0x30, + [USBH_USB_SIM_CONTROL] = 0x34, + }, + .setup_set = USBH_S_IOC, + .setup_clr = 0, + .usc_set = 0, + .tpc_val = 0, + .power_pllc_set = 0, + .power_pllc_clr = USBH_PLLC_PLL_IDDQ_PWRDN | USBH_PLLC_PLL_PWRDN_DELAY, + .dev_mode = true, +}; + +static const struct bcm63xx_usbh_phy_variant usbh_bcm63268 = { + .regs = { + [USBH_BRT_CONTROL1] = 0x00, + [USBH_BRT_CONTROL2] = 0x04, + [USBH_BRT_STATUS1] = 0x08, + [USBH_BRT_STATUS2] = 0x0c, + [USBH_UTMI_CONTROL1] = 0x10, + [USBH_TEST_PORT_CONTROL] = 0x14, + [USBH_PLL_CONTROL1] = 0x18, + [USBH_SWAP_CONTROL] = 0x1c, + [USBH_GENERIC_CONTROL] = 0x20, + [USBH_FRAME_ADJUST_VALUE] = 0x24, + [USBH_SETUP] = 0x28, + [USBH_MDIO] = 0x2c, + [USBH_MDIO32] = 0x30, + [USBH_USB_SIM_CONTROL] = 0x34, + }, + .setup_set = USBH_S_IOC, + .setup_clr = USBH_S_IPP, + .usc_set = 0, + .tpc_val = 0, + .power_pllc_set = 0, + .power_pllc_clr = USBH_PLLC_PLL_IDDQ_PWRDN | USBH_PLLC_PLL_PWRDN_DELAY, + .dev_mode = true, +}; + +static inline bool usbh_has_reg(struct bcm63xx_usbh_phy *usbh, int reg) +{ + return (usbh->variant->regs[reg] >= 0); +} + +static inline u32 usbh_readl(struct bcm63xx_usbh_phy *usbh, int reg) +{ + return __raw_readl(usbh->base + usbh->variant->regs[reg]); +} + +static inline void usbh_writel(struct bcm63xx_usbh_phy *usbh, int reg, + u32 value) +{ + __raw_writel(value, usbh->base + usbh->variant->regs[reg]); +} + +static int bcm63xx_usbh_phy_init(struct phy *phy) +{ + struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy); + int ret; + + ret = clk_prepare_enable(usbh->usbh_clk); + if (ret) { + dev_err(&phy->dev, "unable to enable usbh clock: %d\n", ret); + return ret; + } + + ret = clk_prepare_enable(usbh->usb_ref_clk); + if (ret) { + dev_err(&phy->dev, "unable to enable usb_ref clock: %d\n", ret); + clk_disable_unprepare(usbh->usbh_clk); + return ret; + } + + ret = reset_control_reset(usbh->reset); + if (ret) { + dev_err(&phy->dev, "unable to reset device: %d\n", ret); + clk_disable_unprepare(usbh->usb_ref_clk); + clk_disable_unprepare(usbh->usbh_clk); + return ret; + } + + /* Configure to work in native CPU endian */ + if (usbh_has_reg(usbh, USBH_SWAP_CONTROL)) { + u32 val = usbh_readl(usbh, USBH_SWAP_CONTROL); + + val |= USBH_SC_EHCI_DATA_SWAP; + val &= ~USBH_SC_EHCI_ENDIAN_SWAP; + + val |= USBH_SC_OHCI_DATA_SWAP; + val &= ~USBH_SC_OHCI_ENDIAN_SWAP; + + if (usbh->is_device) + val |= USBH_SC_USB_DEVICE_SEL; + + usbh_writel(usbh, USBH_SWAP_CONTROL, val); + } + + if (usbh_has_reg(usbh, USBH_SETUP)) { + u32 val = usbh_readl(usbh, USBH_SETUP); + + val |= usbh->variant->setup_set; + val &= ~usbh->variant->setup_clr; + + usbh_writel(usbh, USBH_SETUP, val); + } + + if (usbh_has_reg(usbh, USBH_USB_SIM_CONTROL)) { + u32 val = usbh_readl(usbh, USBH_USB_SIM_CONTROL); + + val |= usbh->variant->usc_set; + + usbh_writel(usbh, USBH_USB_SIM_CONTROL, val); + } + + if (usbh->variant->tpc_val && + usbh_has_reg(usbh, USBH_TEST_PORT_CONTROL)) + usbh_writel(usbh, USBH_TEST_PORT_CONTROL, + usbh->variant->tpc_val); + + return 0; +} + +static int bcm63xx_usbh_phy_power_on(struct phy *phy) +{ + struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy); + + if (usbh_has_reg(usbh, USBH_PLL_CONTROL1)) { + u32 val = usbh_readl(usbh, USBH_PLL_CONTROL1); + + val |= usbh->variant->power_pllc_set; + val &= ~usbh->variant->power_pllc_clr; + + usbh_writel(usbh, USBH_PLL_CONTROL1, val); + } + + return 0; +} + +static int bcm63xx_usbh_phy_power_off(struct phy *phy) +{ + struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy); + + if (usbh_has_reg(usbh, USBH_PLL_CONTROL1)) { + u32 val = usbh_readl(usbh, USBH_PLL_CONTROL1); + + val &= ~usbh->variant->power_pllc_set; + val |= usbh->variant->power_pllc_clr; + + usbh_writel(usbh, USBH_PLL_CONTROL1, val); + } + + return 0; +} + +static int bcm63xx_usbh_phy_exit(struct phy *phy) +{ + struct bcm63xx_usbh_phy *usbh = phy_get_drvdata(phy); + + clk_disable_unprepare(usbh->usbh_clk); + clk_disable_unprepare(usbh->usb_ref_clk); + + return 0; +} + +static const struct phy_ops bcm63xx_usbh_phy_ops = { + .exit = bcm63xx_usbh_phy_exit, + .init = bcm63xx_usbh_phy_init, + .power_off = bcm63xx_usbh_phy_power_off, + .power_on = bcm63xx_usbh_phy_power_on, + .owner = THIS_MODULE, +}; + +static struct phy *bcm63xx_usbh_phy_xlate(struct device *dev, + struct of_phandle_args *args) +{ + struct bcm63xx_usbh_phy *usbh = dev_get_drvdata(dev); + + if (usbh->variant->dev_mode) + usbh->is_device = !!args->args[0]; + + return of_phy_simple_xlate(dev, args); +} + +static int __init bcm63xx_usbh_phy_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct bcm63xx_usbh_phy *usbh; + const struct bcm63xx_usbh_phy_variant *variant; + struct resource *res; + struct phy *phy; + struct phy_provider *phy_provider; + + usbh = devm_kzalloc(dev, sizeof(*usbh), GFP_KERNEL); + if (!usbh) + return -ENOMEM; + + variant = device_get_match_data(dev); + if (!variant) + return -EINVAL; + usbh->variant = variant; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + usbh->base = devm_ioremap_resource(dev, res); + if (IS_ERR(usbh->base)) + return PTR_ERR(usbh->base); + + usbh->reset = devm_reset_control_get(dev, NULL); + if (IS_ERR(usbh->reset)) { + if (PTR_ERR(usbh->reset) != -EPROBE_DEFER) + dev_err(dev, "failed to get reset\n"); + return PTR_ERR(usbh->reset); + } + + usbh->usbh_clk = devm_clk_get_optional(dev, "usbh"); + if (IS_ERR(usbh->usbh_clk)) + return PTR_ERR(usbh->usbh_clk); + + usbh->usb_ref_clk = devm_clk_get_optional(dev, "usb_ref"); + if (IS_ERR(usbh->usb_ref_clk)) + return PTR_ERR(usbh->usb_ref_clk); + + phy = devm_phy_create(dev, NULL, &bcm63xx_usbh_phy_ops); + if (IS_ERR(phy)) { + dev_err(dev, "failed to create PHY\n"); + return PTR_ERR(phy); + } + + platform_set_drvdata(pdev, usbh); + phy_set_drvdata(phy, usbh); + + phy_provider = devm_of_phy_provider_register(dev, + bcm63xx_usbh_phy_xlate); + if (IS_ERR(phy_provider)) { + dev_err(dev, "failed to register PHY provider\n"); + return PTR_ERR(phy_provider); + } + + dev_info(dev, "Registered BCM63xx USB PHY driver\n"); + + return 0; +} + +static const struct of_device_id bcm63xx_usbh_phy_ids[] __initconst = { + { .compatible = "brcm,bcm6318-usbh-phy", .data = &usbh_bcm6318 }, + { .compatible = "brcm,bcm6328-usbh-phy", .data = &usbh_bcm6328 }, + { .compatible = "brcm,bcm6358-usbh-phy", .data = &usbh_bcm6358 }, + { .compatible = "brcm,bcm6362-usbh-phy", .data = &usbh_bcm6368 }, + { .compatible = "brcm,bcm6368-usbh-phy", .data = &usbh_bcm6368 }, + { .compatible = "brcm,bcm63268-usbh-phy", .data = &usbh_bcm63268 }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, bcm63xx_usbh_phy_ids); + +static struct platform_driver bcm63xx_usbh_phy_driver __refdata = { + .driver = { + .name = "bcm63xx-usbh-phy", + .of_match_table = bcm63xx_usbh_phy_ids, + }, + .probe = bcm63xx_usbh_phy_probe, +}; +module_platform_driver(bcm63xx_usbh_phy_driver); + +MODULE_DESCRIPTION("BCM63xx USBH PHY driver"); +MODULE_AUTHOR("Álvaro Fernández Rojas "); +MODULE_AUTHOR("Simon Arlott "); +MODULE_LICENSE("GPL");