From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from DB3EHSOBE003.bigfish.com (db3ehsobe003.messaging.microsoft.com [213.199.154.141]) (using TLSv1 with cipher AES128-SHA (128/128 bits)) (Client CN "mail.global.frontbridge.com", Issuer "Microsoft Secure Server Authority" (verified OK)) by ozlabs.org (Postfix) with ESMTPS id 6CFA11007DB for ; Fri, 28 Oct 2011 18:04:12 +1100 (EST) Received: from mail102-db3 (localhost.localdomain [127.0.0.1]) by mail102-db3-R.bigfish.com (Postfix) with ESMTP id C30175400CF for ; Fri, 28 Oct 2011 07:04:01 +0000 (UTC) Received: from DB3EHSMHS016.bigfish.com (unknown [10.3.81.244]) by mail102-db3.bigfish.com (Postfix) with ESMTP id 9B86217C0050 for ; Fri, 28 Oct 2011 07:04:01 +0000 (UTC) From: Jia Hongtao To: Subject: [PATCH SDK1.1 ] Do not hide resource for pci/pcie when configured as Agent/EP Date: Fri, 28 Oct 2011 13:52:18 +0800 Message-ID: <1319781138-16051-1-git-send-email-B38951@freescale.com> MIME-Version: 1.0 Content-Type: text/plain Cc: B11780@freescale.com, b38951@freescale.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Jason Jin Current pci/pcie init code will hide the pci/pcie host resource. But did not judge it is host/RC or agent/EP. If configured as agent/EP, we should avoid hiding its resource in the host side. In PCI system, the Programing Interface can be used to judge the host/agent status: Programing Interface = 0: host Programing Interface = 1: Agent In PCIE system, both the Programing Interface and Header type can be used to judge the RC/EP status. Header Type = 0: EP Header Type = 1: RC Signed-off-by: Jason Jin Signed-off-by: Mingkai Hu Signed-off-by: Jia Hongtao Signed-off-by: Li Yang --- arch/powerpc/kernel/pci-common.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index 4f134132c..bc61a69 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -1732,10 +1732,13 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose) static void fixup_hide_host_resource_fsl(struct pci_dev *dev) { int i, class = dev->class >> 8; + /* When configured as agent, programing interface = 1 */ + int prog_if = dev->class & 0xf; if ((class == PCI_CLASS_PROCESSOR_POWERPC || class == PCI_CLASS_BRIDGE_OTHER) && (dev->hdr_type == PCI_HEADER_TYPE_NORMAL) && + (prog_if == 0) && (dev->bus->parent == NULL)) { for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { dev->resource[i].start = 0; -- 1.7.5.1