From patchwork Mon Apr 3 13:53:29 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 746488 X-Patchwork-Delegate: sbabic@denx.de Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 3vxYxP5glSz9s81 for ; Tue, 4 Apr 2017 00:13:45 +1000 (AEST) Received: by lists.denx.de (Postfix, from userid 105) id 863ADC21D20; Mon, 3 Apr 2017 14:05:08 +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=RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL 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 255CEC21C9C; Mon, 3 Apr 2017 14:05:06 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 5146BC21CC2; Mon, 3 Apr 2017 13:57:06 +0000 (UTC) Received: from mail-pg0-f65.google.com (mail-pg0-f65.google.com [74.125.83.65]) by lists.denx.de (Postfix) with ESMTPS id 811FFC21CBD for ; Mon, 3 Apr 2017 13:57:01 +0000 (UTC) Received: by mail-pg0-f65.google.com with SMTP id 81so30155251pgh.3 for ; Mon, 03 Apr 2017 06:57:01 -0700 (PDT) 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; bh=4u0i3cMcq9D4AAKd42gYmD7htjhQQRIig9O+2BHvHRo=; b=YDutioFQrT6iS46QPyJprppoqeYeQNDNcb2wyuK3/orjXai2x+JkGc83ckZedO+buc Y0z7Ed8iJ9LMnPifB4U02N+HlMh2Orh2RAsUI/YmruUoAJa4zs1VJGWyjegTLCQaqWXw LWWRrq/ZDwxFUEMBPA11r9chvE69yQCuU0Ni8lwIwxWr94Hkp1Q0HZrajpWY0wI/O5/L 4QqZgBZWuaGbcmgr+GYSSCsPL1+miKvrGUqBeCjUwZXEVswhqNJWLzjRoXhNQH5oj/z+ Vhg9YXh++HSBGkc5uCwCbSKvPC1VdmZEVzI8XsD3m+6qEPA7kPbfZhaQpmOE3yWvOJVj q7Nw== X-Gm-Message-State: AFeK/H1Lfm4qmFrWVp4YYuGkO0p7V24QuQ7C3iUzqORz29iCihwNY1Gm2PQK7qhfeLQYgw== X-Received: by 10.98.8.129 with SMTP id 1mr18035503pfi.268.1491227820248; Mon, 03 Apr 2017 06:57:00 -0700 (PDT) Received: from localhost.localdomain ([117.254.76.151]) by smtp.gmail.com with ESMTPSA id 123sm26271368pgh.21.2017.04.03.06.56.57 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 03 Apr 2017 06:56:59 -0700 (PDT) From: Jagan Teki To: Stefano Babic Date: Mon, 3 Apr 2017 19:23:29 +0530 Message-Id: <1491227616-15042-23-git-send-email-jagan@openedev.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1491227616-15042-1-git-send-email-jagan@openedev.com> References: <1491227616-15042-1-git-send-email-jagan@openedev.com> Cc: Fabio Estevam , u-boot@lists.denx.de Subject: [U-Boot] [PATCH v2 22/29] ARM: i.MX6: sabresd: Add imx6_pcie_toggle_reset 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" From: Jagan Teki Add imx6_pcie_toggle_reset on board file using dm_gpio_* calls for OF_CONTROL configs. Cc: Stefano Babic Cc: Fabio Estevam Cc: Michael Trimarchi Signed-off-by: Jagan Teki --- board/freescale/mx6sabresd/mx6sabresd.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c index f4e14be..67fc192 100644 --- a/board/freescale/mx6sabresd/mx6sabresd.c +++ b/board/freescale/mx6sabresd/mx6sabresd.c @@ -561,6 +561,37 @@ int imx6_pcie_toggle_power(void) #endif return 0; } + +int imx6_pcie_toggle_reset(void) +{ +#ifdef CONFIG_PCIE_IMX_PERST_GPIO + struct gpio_desc reset; + int ret; + + ret = dm_gpio_lookup_name("GPIO7_12", &reset); + if (ret) { + printf("Cannot get GPIO7_12\n"); + return ret; + } + + ret = dm_gpio_request(&reset, "reset"); + if (ret) { + printf("Cannot request GPIO7_12\n"); + return ret; + } + + dm_gpio_set_dir_flags(&reset, GPIOD_IS_OUT); + + dm_gpio_set_value(&reset, 0); + mdelay(20); + dm_gpio_set_value(&reset, 1); + mdelay(20); + +#else + puts("WARNING: Make sure the PCIe #PERST line is connected!\n"); +#endif + return 0; +} #endif #ifndef CONFIG_OF_CONTROL