From patchwork Wed Jan 13 06:47:45 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 59647 Delivered-To: patch@linaro.org Received: by 10.112.130.2 with SMTP id oa2csp3179773lbb; Tue, 12 Jan 2016 22:48:33 -0800 (PST) X-Received: by 10.66.180.48 with SMTP id dl16mr193088295pac.39.1452667713604; Tue, 12 Jan 2016 22:48:33 -0800 (PST) Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id rn15si32379102pab.231.2016.01.12.22.48.31; Tue, 12 Jan 2016 22:48:33 -0800 (PST) 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 S1754388AbcAMGs3 (ORCPT + 29 others); Wed, 13 Jan 2016 01:48:29 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:43844 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751145AbcAMGs1 (ORCPT ); Wed, 13 Jan 2016 01:48:27 -0500 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id u0D6lwpj025418; Wed, 13 Jan 2016 00:47:58 -0600 Received: from DLEE71.ent.ti.com (dlee71.ent.ti.com [157.170.170.114]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id u0D6lwGv030811; Wed, 13 Jan 2016 00:47:58 -0600 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE71.ent.ti.com (157.170.170.114) with Microsoft SMTP Server id 14.3.224.2; Wed, 13 Jan 2016 00:47:57 -0600 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id u0D6lldw004749; Wed, 13 Jan 2016 00:47:55 -0600 From: Kishon Vijay Abraham I To: Tony Lindgren , Bjorn Helgaas , CC: Russell King , Suman Anna , , , , , Subject: [PATCH v2 2/3] ARM: DRA7: add pdata-quirks to do reset of PCIe Date: Wed, 13 Jan 2016 12:17:45 +0530 Message-ID: <1452667666-17533-3-git-send-email-kishon@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1452667666-17533-1-git-send-email-kishon@ti.com> References: <1452667666-17533-1-git-send-email-kishon@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 Use pdata-quirks to reset PCIe IP. This is to be used until a drivers/reset/ interface is available for this purpose. Signed-off-by: Kishon Vijay Abraham I Signed-off-by: Sekhar Nori --- arch/arm/mach-omap2/pdata-quirks.c | 11 +++++++++++ include/linux/platform_data/pci-dra7xx.h | 22 ++++++++++++++++++++++ 2 files changed, 33 insertions(+) create mode 100644 include/linux/platform_data/pci-dra7xx.h -- 1.7.9.5 diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c index 5814477..f5a65fe 100644 --- a/arch/arm/mach-omap2/pdata-quirks.c +++ b/arch/arm/mach-omap2/pdata-quirks.c @@ -23,6 +23,7 @@ #include #include #include +#include #include "common.h" #include "common-board-devices.h" @@ -404,6 +405,14 @@ static void __init omap5_uevm_legacy_init(void) } #endif +#ifdef CONFIG_SOC_DRA7XX +static struct pci_dra7xx_platform_data dra7xx_pci_pdata = { + .reset_name = "pcie", + .assert_reset = omap_device_assert_hardreset, + .deassert_reset = omap_device_deassert_hardreset, +}; +#endif + static struct pcs_pdata pcs_pdata; void omap_pcs_legacy_init(int irq, void (*rearm)(void)) @@ -474,6 +483,8 @@ static struct of_dev_auxdata omap_auxdata_lookup[] __initdata = { #endif #ifdef CONFIG_SOC_DRA7XX OF_DEV_AUXDATA("ti,dra7-padconf", 0x4a003400, "4a003400.pinmux", &pcs_pdata), + OF_DEV_AUXDATA("ti,dra7-pcie", 0x51000000, "51000000.pcie", &dra7xx_pci_pdata), + OF_DEV_AUXDATA("ti,dra7-pcie", 0x51800000, "51800000.pcie", &dra7xx_pci_pdata), #endif #ifdef CONFIG_SOC_AM43XX OF_DEV_AUXDATA("ti,am437-padconf", 0x44e10800, "44e10800.pinmux", &pcs_pdata), diff --git a/include/linux/platform_data/pci-dra7xx.h b/include/linux/platform_data/pci-dra7xx.h new file mode 100644 index 0000000..792c8ed --- /dev/null +++ b/include/linux/platform_data/pci-dra7xx.h @@ -0,0 +1,22 @@ +/* + * pcie-dra7xx - Platform data for PCIe controller + * + * Copyright (C) 2016 Texas Instruments Incorporated - http://www.ti.com/ + * + * Authors: Kishon Vijay Abraham I + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __PCI_DRA7XX_H +#define __PCI_DRA7XX_H + +struct pci_dra7xx_platform_data { + const char *reset_name; + + int (*assert_reset)(struct platform_device *pdev, const char *name); + int (*deassert_reset)(struct platform_device *pdev, const char *name); +}; +#endif /* __PCI_DRA7XX_H */