From patchwork Thu May 4 15:11:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jagan Teki X-Patchwork-Id: 758629 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 3wJf2N1fyCz9s2P for ; Fri, 5 May 2017 01:24:12 +1000 (AEST) Received: by lists.denx.de (Postfix, from userid 105) id CC33BC21C88; Thu, 4 May 2017 15:22:32 +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_DNSWL_NONE, 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 7C066C21C96; Thu, 4 May 2017 15:20:02 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id AF00EC21C68; Thu, 4 May 2017 15:18:26 +0000 (UTC) Received: from mail-pg0-f66.google.com (mail-pg0-f66.google.com [74.125.83.66]) by lists.denx.de (Postfix) with ESMTPS id DFC2CC21C48 for ; Thu, 4 May 2017 15:18:22 +0000 (UTC) Received: by mail-pg0-f66.google.com with SMTP id u187so592163pgb.1 for ; Thu, 04 May 2017 08:18:22 -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=jUuoL4vllhIOYDvWKI6oQZtRl4UH9gJItl/7SBIVuZ0=; b=kOf5ySbW5mADIzMPVYCpZZKoXiRWLM4E1fG/L/qrs+VEjzMQO5dtrVZjHs0T1zjQBm DA7jjujdJucOwCNVpKEUYr05ddMqKEZz9vQEaTAk5lrXpcZB6EHGLS6Mc6tzMVd7Sy0a Paa50NyR30W2zGCQF2nGdEpNmJ324Vw946mGUPP/Yu4lkAIHiMZ5ysLX7GnVXwyKFue7 0YMHm+CPS7WfBlJ0ALou7UapJx5JV4Sa36qLzVfoXiL5goaQlRhDM6EsfTe95/qfMEZ5 oT5USxY2rIrig5BlSlbDVqjXNhYLWCL//TKhfRz0QIG7+z1tz3xtOOXsqaIJxrgEae6/ 8H/Q== X-Gm-Message-State: AN3rC/6tdJnwIxJAuLctr+SRrOJ0n8zHp0pUc3STl4aEZ8AYNls2TGj5 O8Keu1mCOL35zQ== X-Received: by 10.84.176.100 with SMTP id u91mr57559904plb.39.1493911101174; Thu, 04 May 2017 08:18:21 -0700 (PDT) Received: from localhost.localdomain ([59.95.76.120]) by smtp.gmail.com with ESMTPSA id d3sm6803661pgc.37.2017.05.04.08.18.18 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 04 May 2017 08:18:20 -0700 (PDT) From: Jagan Teki To: Stefano Babic Date: Thu, 4 May 2017 20:41:31 +0530 Message-Id: <1493910702-6751-23-git-send-email-jagan@openedev.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1493910702-6751-1-git-send-email-jagan@openedev.com> References: <1493910702-6751-1-git-send-email-jagan@openedev.com> Cc: Fabio Estevam , u-boot@lists.denx.de Subject: [U-Boot] [PATCH v5 22/33] 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 2ed4e50..7c28cc7 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