From patchwork Mon Sep 8 12:04:46 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Griffin X-Patchwork-Id: 4861621 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 9002C9F35F for ; Mon, 8 Sep 2014 12:07:36 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 25D3320131 for ; Mon, 8 Sep 2014 12:07:35 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D34D22010E for ; Mon, 8 Sep 2014 12:07:29 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XQxhS-0005lN-Kb; Mon, 08 Sep 2014 12:05:38 +0000 Received: from mail-wi0-f174.google.com ([209.85.212.174]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XQxhB-0004VS-Qp for linux-arm-kernel@lists.infradead.org; Mon, 08 Sep 2014 12:05:22 +0000 Received: by mail-wi0-f174.google.com with SMTP id d1so2505845wiv.1 for ; Mon, 08 Sep 2014 05:04:58 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Ls8J4L38SbmRXEjB7N+zbs/wEoMO3DUmIbSDiIEnHf8=; b=ey+xgKBgdcRx2/yAmBdkpiq2t1txdtojAhgdUdpNJJIl/2QrPcG/xncPquwqPSb9j5 TcuIMxn2swTRtfsnHY7KzoYUSezsnnPBgynvgKgO1cu/5GUT8lo3UAkOgy67/iCQPD4o z7EI2huxegETAoK4oWAthf1M9Ny0383BkYUkodvHxkEMKB/tNjm3Y8gsVHQKOm8w4Mv9 SMA5Hb5EiFGDs0HU7xKZxnzctPMakOaXlle5IkxPqh4eDBx8UjfrHKQy4c5de0MPcFXo +AADMFWQWLivyjq8fzZM7BUi9xRWXuMJO8WKRzVRdXinx/eCHExHNcslylwXzGM6qGya m7+Q== X-Gm-Message-State: ALoCoQnEKwF7d8wmWdXvc3G8qPxYftfOVIgAyfHeoiH9BuL9ZO1W0WoYM2FmjpExRATevzwsa72H X-Received: by 10.180.101.65 with SMTP id fe1mr22467797wib.53.1410177898493; Mon, 08 Sep 2014 05:04:58 -0700 (PDT) Received: from localhost.localdomain (cpc14-aztw22-2-0-cust189.18-1.cable.virginm.net. [82.45.1.190]) by mx.google.com with ESMTPSA id gk17sm11630379wic.16.2014.09.08.05.04.56 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 08 Sep 2014 05:04:57 -0700 (PDT) From: Peter Griffin To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, stern@rowland.harvard.edu, gregkh@linuxfoundation.org, srinivas.kandagatla@gmail.com, maxime.coquelin@st.com, patrice.chotard@st.com, arnd@arndb.de Subject: [PATCH v6 3/5] usb: host: ehci-st: Add ehci-st devicetree bindings documentation Date: Mon, 8 Sep 2014 13:04:46 +0100 Message-Id: <1410177888-26710-4-git-send-email-peter.griffin@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1410177888-26710-1-git-send-email-peter.griffin@linaro.org> References: <1410177888-26710-1-git-send-email-peter.griffin@linaro.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140908_050522_036819_B691EB8F X-CRM114-Status: GOOD ( 12.57 ) X-Spam-Score: -0.7 (/) Cc: peter.griffin@linaro.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, lee.jones@linaro.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch documents the device tree bindings required for the ehci on-chip controller found in ST consumer electronics SoC's. Signed-off-by: Peter Griffin --- Documentation/devicetree/bindings/usb/ehci-st.txt | 39 +++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/ehci-st.txt diff --git a/Documentation/devicetree/bindings/usb/ehci-st.txt b/Documentation/devicetree/bindings/usb/ehci-st.txt new file mode 100644 index 0000000..fb45fa5 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/ehci-st.txt @@ -0,0 +1,39 @@ +ST USB EHCI controller + +Required properties: + - compatible : must be "st,st-ehci-300x" + - reg : physical base addresses of the controller and length of memory mapped + region + - interrupts : one EHCI interrupt should be described here + - pinctrl-names : a pinctrl state named "default" must be defined + - pinctrl-0 : phandle referencing pin configuration of the USB controller +See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt + - clocks : phandle list of usb clocks + - clock-names : should be "ic" for interconnect clock and "clk48" +See: Documentation/devicetree/bindings/clock/clock-bindings.txt + + - phys : phandle for the PHY device + - phy-names : should be "usb" + - resets : phandle + reset specifier pairs to the powerdown and softreset lines + of the USB IP + - reset-names : should be "power" and "softreset" +See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt +See: Documentation/devicetree/bindings/reset/reset.txt + +Example: + + ehci1: usb@0xfe203e00 { + compatible = "st,st-ehci-300x"; + reg = <0xfe203e00 0x100>; + interrupts = ; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usb1>; + clocks = <&clk_s_a1_ls 0>; + phys = <&usb2_phy>; + phy-names = "usb"; + status = "okay"; + + resets = <&powerdown STIH416_USB1_POWERDOWN>, + <&softreset STIH416_USB1_SOFTRESET>; + reset-names = "power", "softreset"; + };