From patchwork Sat May 12 10:15:51 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramon Fried X-Patchwork-Id: 912400 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.denx.de (client-ip=81.169.180.215; helo=lists.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="ueL+MPfR"; dkim-atps=neutral Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 40jjYC3Nfvz9rxs for ; Sat, 12 May 2018 20:16:30 +1000 (AEST) Received: by lists.denx.de (Postfix, from userid 105) id 0EB2AC2234A; Sat, 12 May 2018 10:16:25 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=FREEMAIL_FROM, RCVD_IN_DNSWL_BLOCKED, RCVD_IN_MSPIKE_H2, T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id 92A4AC22041; Sat, 12 May 2018 10:16:22 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 118CBC22041; Sat, 12 May 2018 10:16:22 +0000 (UTC) Received: from mail-wr0-f195.google.com (mail-wr0-f195.google.com [209.85.128.195]) by lists.denx.de (Postfix) with ESMTPS id A64F7C21FD9 for ; Sat, 12 May 2018 10:16:21 +0000 (UTC) Received: by mail-wr0-f195.google.com with SMTP id p5-v6so7557858wre.12 for ; Sat, 12 May 2018 03:16:21 -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; bh=vu8Q0EQeKQvyJcVGAjvowbHEOVpaA3IKB+wx09/Xk5Y=; b=ueL+MPfRNL45nweG58JlcGPtXRdTLSreG7vLHFNmDL3A7E4Mii+zLkhunDC4L+BLMl vvv8R47qqifrFowXEjAbaHGUfC1g79i6cBWQTKRzlNqUSX7m1HMdgWXE+R9xvEMTTtlB jQfhFYgbJDpp7e3uqusF/0Jz7mbPCNw6ODNlL08cP8CzsiD3W3CU7jlNCKuPd87yFaE9 DI4frLRfjUIBnfArz05pzJPvBolJ5nIv3wV7HiikHPFTw+Ve6Xps1TEIymXX54+9345d CXU9S7hvVLlEP97NJ9DNI7jV5CqKRFgusBrPUovGaJEyfIGYuD8v15+/9uogMbhdj1mK W4Jg== 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; bh=vu8Q0EQeKQvyJcVGAjvowbHEOVpaA3IKB+wx09/Xk5Y=; b=RHAfRHL+ufICWFIWz9AvX3mM94WzuT5BVlxcz74X8W9eLMczzB0HLNmdD3jWPad3wy 8ugjvUMC18deyebgYlfvYn8rWiC25SUw5YiJSXotxx07SPl8TF8cuZOxyHPHLLcMNzix 1/M3ywDQJGord8xHExXAXQ7BJoeVvhhRN1+BiiQHJJHFtyJ/uipqQx2p2G6VnkL5WyA6 iIejXKEWd2ZoQLCF+XkJdNOrJ6Os88ckLSgY3DLDMGn3bgHd5h7dHIG/6xSunJaObcE5 PFw4QKzq0VvQt5GwcOMQ3aeJAB8mN0cE/qGwEVWtVCeeaVh5KBuCeBbk9zk0kAAUGbpi nyIg== X-Gm-Message-State: ALKqPwf9pud5JB+lTK5CZ5Kaq9o4wKYGHz8Uk08WIX5zS9QEq4xC5Rzl T1vH1hUJlldiLGN7jIrNxw0= X-Google-Smtp-Source: AB8JxZp/vEFlAEp4v2VNM9/zgugF6xZKlbQzcTEhbhXS1JBFs2UWOYaq3fiPl6Az6eltopul2Z4uCQ== X-Received: by 2002:adf:ce03:: with SMTP id p3-v6mr1680442wrn.110.1526120181293; Sat, 12 May 2018 03:16:21 -0700 (PDT) Received: from localhost.localdomain ([141.226.166.38]) by smtp.gmail.com with ESMTPSA id h67-v6sm2881280wmg.41.2018.05.12.03.16.19 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 12 May 2018 03:16:20 -0700 (PDT) From: Ramon Fried To: albert.u.boot@aribaud.net, mateusz.kulikowski@gmail.com, jramirez@baylibre.com, robdclark@gmail.com, sjg@chromium.org Date: Sat, 12 May 2018 13:15:51 +0300 Message-Id: <20180512101558.24375-1-ramon.fried@gmail.com> X-Mailer: git-send-email 2.14.1 Cc: u-boot@lists.denx.de Subject: [U-Boot] [PATCH 0/7] *** Qualcomm Snapdraon serial fixes*** X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" In my ongoing effort to get rid of LK (Qualcomm's bootloader) that runs before U-boot, I found that there were some problems with the uart driver of Snapdragon. It appears that the uart only worked because the initialization was previously done by LK. While fixing, I also introduced a new pinctrl driver for snapdragon (currently only enabled for APQ8016). the pinctrl driver is used for muxing the uart pins and configure the pins IO properties. Ramon Fried (7): db820c: set clk node to be probed before relocation serial: serial_msm: fail probe if settings clocks fails serial: serial_msm: initialize uart only before relocation mach-snapdragon: Fix UART clock flow mach-snapdragon: Introduce pinctrl driver db410: added pinctrl node and serial bindings serial: serial_msm: added pinmux & config arch/arm/dts/dragonboard410c.dts | 14 ++ arch/arm/dts/dragonboard820c-uboot.dtsi | 14 ++ arch/arm/mach-snapdragon/Makefile | 2 + arch/arm/mach-snapdragon/clock-apq8016.c | 23 ++- arch/arm/mach-snapdragon/clock-apq8096.c | 4 +- arch/arm/mach-snapdragon/clock-snapdragon.c | 17 ++- arch/arm/mach-snapdragon/clock-snapdragon.h | 9 +- .../mach-snapdragon/include/mach/sysmap-apq8016.h | 1 + arch/arm/mach-snapdragon/pinctrl-apq8016.c | 162 +++++++++++++++++++++ arch/arm/mach-snapdragon/pinctrl-snapdragon.c | 118 +++++++++++++++ arch/arm/mach-snapdragon/pinctrl-snapdragon.h | 21 +++ configs/dragonboard410c_defconfig | 5 + drivers/serial/serial_msm.c | 30 +++- include/dt-bindings/pinctrl/pinctrl-snapdragon.h | 22 +++ 14 files changed, 423 insertions(+), 19 deletions(-) create mode 100644 arch/arm/mach-snapdragon/pinctrl-apq8016.c create mode 100644 arch/arm/mach-snapdragon/pinctrl-snapdragon.c create mode 100644 arch/arm/mach-snapdragon/pinctrl-snapdragon.h create mode 100644 include/dt-bindings/pinctrl/pinctrl-snapdragon.h