From patchwork Sun Jan 10 15:41:27 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: 7997171 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A517FBEEE5 for ; Sun, 10 Jan 2016 15:44:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BD94B201F4 for ; Sun, 10 Jan 2016 15:44:04 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DFC3E2024C for ; Sun, 10 Jan 2016 15:44:03 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aII8b-0003SL-7i; Sun, 10 Jan 2016 15:42:37 +0000 Received: from bear.ext.ti.com ([192.94.94.41]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aII8D-0003IC-Ny for linux-arm-kernel@lists.infradead.org; Sun, 10 Jan 2016 15:42:17 +0000 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id u0AFffsU017734; Sun, 10 Jan 2016 09:41:41 -0600 Received: from DFLE73.ent.ti.com (dfle73.ent.ti.com [128.247.5.110]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id u0AFffjo004292; Sun, 10 Jan 2016 09:41:41 -0600 Received: from dflp33.itg.ti.com (10.64.6.16) by DFLE73.ent.ti.com (128.247.5.110) with Microsoft SMTP Server id 14.3.224.2; Sun, 10 Jan 2016 09:41:41 -0600 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by dflp33.itg.ti.com (8.14.3/8.13.8) with ESMTP id u0AFfUKk027623; Sun, 10 Jan 2016 09:41:38 -0600 From: Kishon Vijay Abraham I To: Tony Lindgren , Bjorn Helgaas , Subject: [PATCH 2/3] HACK: ARM: DRA7: add pdata-quirks to do reset of PCIe Date: Sun, 10 Jan 2016 21:11:27 +0530 Message-ID: <1452440488-28398-3-git-send-email-kishon@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1452440488-28398-1-git-send-email-kishon@ti.com> References: <1452440488-28398-1-git-send-email-kishon@ti.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160110_074214_077646_D2F26E70 X-CRM114-Status: GOOD ( 15.09 ) X-Spam-Score: -6.9 (------) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Russell King , nsekhar@ti.com, linux-kernel@vger.kernel.org, kishon@ti.com, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Use pdata-quirks to reset PCIe IP. This is to be used until a drivers/reset/ interface is available for this purpose. Reviewed-by: Suman Anna 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 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 */