Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932821Ab3CGO3i (ORCPT ); Thu, 7 Mar 2013 09:29:38 -0500 Received: from mail-pa0-f49.google.com ([209.85.220.49]:45147 "EHLO mail-pa0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755185Ab3CGO3h (ORCPT ); Thu, 7 Mar 2013 09:29:37 -0500 From: yxlraid@gmail.com To: bhelgaas@google.com Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Xiangliang Yu Subject: [PATCH 2/2] PCI: fix system hang issue of Marvell SATA host controller Date: Thu, 7 Mar 2013 22:29:16 +0800 Message-Id: <1362666556-10036-1-git-send-email-yxlraid@gmail.com> X-Mailer: git-send-email 1.7.5.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1432 Lines: 42 From: Xiangliang Yu Fix system hang issue: if first accessed resource file of BAR0 ~ BAR4, system will hang after executing lspci command --- drivers/pci/quirks.c | 15 +++++++++++++++ 1 files changed, 15 insertions(+), 0 deletions(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 0369fb6..d49f8dc 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -44,6 +44,21 @@ static void quirk_mmio_always_on(struct pci_dev *dev) DECLARE_PCI_FIXUP_CLASS_EARLY(PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_BRIDGE_HOST, 8, quirk_mmio_always_on); +/* The BAR0 ~ BAR4 of Marvell 9125 device can't be accessed +* by IO resource file, and need to skip the files +*/ +static void quirk_marvell_mask_bar(struct pci_dev *dev) +{ + int i; + + for (i = 0; i < 5; i++) + if (dev->resource[i].start) + dev->resource[i].start = + dev->resource[i].end = 0; +} +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MARVELL_EXT, 0x9125, + quirk_marvell_mask_bar); + /* The Mellanox Tavor device gives false positive parity errors * Mark this device with a broken_parity_status, to allow * PCI scanning code to "skip" this now blacklisted device. -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/