From patchwork Thu Feb 27 06:01:28 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mohit KUMAR DCG X-Patchwork-Id: 3730341 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id BFDABBF13A for ; Thu, 27 Feb 2014 06:02:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E140E2020A for ; Thu, 27 Feb 2014 06:02:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 43D1F20212 for ; Thu, 27 Feb 2014 06:02:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751421AbaB0GCB (ORCPT ); Thu, 27 Feb 2014 01:02:01 -0500 Received: from eu1sys200aog107.obsmtp.com ([207.126.144.123]:58001 "EHLO eu1sys200aog107.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751198AbaB0GCA (ORCPT ); Thu, 27 Feb 2014 01:02:00 -0500 Received: from beta.dmz-ap.st.com ([138.198.100.35]) (using TLSv1) by eu1sys200aob107.postini.com ([207.126.147.11]) with SMTP ID DSNKUw7U1GuHeZE7YsypjwwDC5mAGhjwVU6d@postini.com; Thu, 27 Feb 2014 06:01:59 UTC Received: from zeta.dmz-ap.st.com (ns6.st.com [138.198.234.13]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id A788FC2; Thu, 27 Feb 2014 06:01:53 +0000 (GMT) Received: from Webmail-ap.st.com (eapex1hubcas2.st.com [10.80.176.10]) by zeta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 9741FBCD; Thu, 27 Feb 2014 06:01:53 +0000 (GMT) Received: from localhost (10.199.16.23) by Webmail-ap.st.com (10.80.176.7) with Microsoft SMTP Server (TLS) id 8.3.298.1; Thu, 27 Feb 2014 14:01:52 +0800 From: Mohit Kumar To: Cc: Mohit Kumar , Ajay Khandelwal , , , Subject: [PATCH V2 2/2] PCI: designware: Fix iATU programming for cfg1, io and mem viewport Date: Thu, 27 Feb 2014 11:31:28 +0530 Message-ID: X-Mailer: git-send-email 1.7.0.1 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 This patch correct iATU programming for cfg1, io and mem viewport. Enable ATU only after configuring it. Signed-off-by: Mohit Kumar Signed-off-by: Ajay Khandelwal Acked-by: Jingoo Han Cc: Bjorn Helgaas Cc: spear-devel@list.st.com Cc: linux-pci@vger.kernel.org Cc: stable@vger.kernel.org --- drivers/pci/host/pcie-designware.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c index 391966f..46f4a19 100644 --- a/drivers/pci/host/pcie-designware.c +++ b/drivers/pci/host/pcie-designware.c @@ -522,13 +522,13 @@ static void dw_pcie_prog_viewport_cfg1(struct pcie_port *pp, u32 busdev) dw_pcie_writel_rc(pp, PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX1, PCIE_ATU_VIEWPORT); dw_pcie_writel_rc(pp, PCIE_ATU_TYPE_CFG1, PCIE_ATU_CR1); - dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2); dw_pcie_writel_rc(pp, pp->cfg1_base, PCIE_ATU_LOWER_BASE); dw_pcie_writel_rc(pp, (pp->cfg1_base >> 32), PCIE_ATU_UPPER_BASE); dw_pcie_writel_rc(pp, pp->cfg1_base + pp->config.cfg1_size - 1, PCIE_ATU_LIMIT); dw_pcie_writel_rc(pp, busdev, PCIE_ATU_LOWER_TARGET); dw_pcie_writel_rc(pp, 0, PCIE_ATU_UPPER_TARGET); + dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2); } static void dw_pcie_prog_viewport_mem_outbound(struct pcie_port *pp) @@ -537,7 +537,6 @@ static void dw_pcie_prog_viewport_mem_outbound(struct pcie_port *pp) dw_pcie_writel_rc(pp, PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX0, PCIE_ATU_VIEWPORT); dw_pcie_writel_rc(pp, PCIE_ATU_TYPE_MEM, PCIE_ATU_CR1); - dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2); dw_pcie_writel_rc(pp, pp->mem_base, PCIE_ATU_LOWER_BASE); dw_pcie_writel_rc(pp, (pp->mem_base >> 32), PCIE_ATU_UPPER_BASE); dw_pcie_writel_rc(pp, pp->mem_base + pp->config.mem_size - 1, @@ -545,6 +544,7 @@ static void dw_pcie_prog_viewport_mem_outbound(struct pcie_port *pp) dw_pcie_writel_rc(pp, pp->config.mem_bus_addr, PCIE_ATU_LOWER_TARGET); dw_pcie_writel_rc(pp, upper_32_bits(pp->config.mem_bus_addr), PCIE_ATU_UPPER_TARGET); + dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2); } static void dw_pcie_prog_viewport_io_outbound(struct pcie_port *pp) @@ -553,7 +553,6 @@ static void dw_pcie_prog_viewport_io_outbound(struct pcie_port *pp) dw_pcie_writel_rc(pp, PCIE_ATU_REGION_OUTBOUND | PCIE_ATU_REGION_INDEX1, PCIE_ATU_VIEWPORT); dw_pcie_writel_rc(pp, PCIE_ATU_TYPE_IO, PCIE_ATU_CR1); - dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2); dw_pcie_writel_rc(pp, pp->io_base, PCIE_ATU_LOWER_BASE); dw_pcie_writel_rc(pp, (pp->io_base >> 32), PCIE_ATU_UPPER_BASE); dw_pcie_writel_rc(pp, pp->io_base + pp->config.io_size - 1, @@ -561,6 +560,7 @@ static void dw_pcie_prog_viewport_io_outbound(struct pcie_port *pp) dw_pcie_writel_rc(pp, pp->config.io_bus_addr, PCIE_ATU_LOWER_TARGET); dw_pcie_writel_rc(pp, upper_32_bits(pp->config.io_bus_addr), PCIE_ATU_UPPER_TARGET); + dw_pcie_writel_rc(pp, PCIE_ATU_ENABLE, PCIE_ATU_CR2); } static int dw_pcie_rd_other_conf(struct pcie_port *pp, struct pci_bus *bus,