From patchwork Tue Aug 23 08:57:41 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Roger Quadros X-Patchwork-Id: 74492 Delivered-To: patch@linaro.org Received: by 10.140.29.52 with SMTP id a49csp1984825qga; Tue, 23 Aug 2016 01:58:21 -0700 (PDT) X-Received: by 10.98.134.77 with SMTP id x74mr51457316pfd.21.1471942700847; Tue, 23 Aug 2016 01:58:20 -0700 (PDT) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id h2si2946847pad.265.2016.08.23.01.58.20; Tue, 23 Aug 2016 01:58:20 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933245AbcHWI6S (ORCPT + 27 others); Tue, 23 Aug 2016 04:58:18 -0400 Received: from arroyo.ext.ti.com ([198.47.19.12]:50390 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933176AbcHWI55 (ORCPT ); Tue, 23 Aug 2016 04:57:57 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id u7N8vr8Z012942; Tue, 23 Aug 2016 03:57:53 -0500 Received: from DLEE70.ent.ti.com (dlee70.ent.ti.com [157.170.170.113]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id u7N8vrNQ028819; Tue, 23 Aug 2016 03:57:53 -0500 Received: from dlep33.itg.ti.com (157.170.170.75) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.294.0; Tue, 23 Aug 2016 03:57:52 -0500 Received: from lta0400828d.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep33.itg.ti.com (8.14.3/8.13.8) with ESMTP id u7N8vgKc025443; Tue, 23 Aug 2016 03:57:50 -0500 From: Roger Quadros To: , CC: , , , , , Roger Quadros Subject: [PATCH 3/3] ARM: dts: dra7: workaround silicon limitation i845 Date: Tue, 23 Aug 2016 11:57:41 +0300 Message-ID: <1471942661-1728-4-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1471942661-1728-1-git-send-email-rogerq@ti.com> References: <1471942661-1728-1-git-send-email-rogerq@ti.com> MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sekhar Nori Silicon limitation i845 documents how to cope with false disconnection condition on USB2 PHY. Reference: AM572x silicon errata document SPRZ429H, revised January 2016. Using compatible "ti,dra7x-usb2" enables the recommended software workaround for this issue. Use it for USB1 PHY. The workaround is already in place for USB2 PHY. Signed-off-by: Sekhar Nori Signed-off-by: Roger Quadros --- arch/arm/boot/dts/dra7.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.7.4 diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index d9bfb94..df0dcbc 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -1413,7 +1413,7 @@ ti,hwmods = "ocp2scp1"; usb2_phy1: phy@4a084000 { - compatible = "ti,omap-usb2"; + compatible = "ti,dra7x-usb2", "ti,omap-usb2"; reg = <0x4a084000 0x400>; syscon-phy-power = <&scm_conf 0x300>; clocks = <&usb_phy1_always_on_clk32k>,