From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AC85AC31E40 for ; Mon, 12 Aug 2019 10:08:43 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F028D20820 for ; Mon, 12 Aug 2019 10:08:42 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F028D20820 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 466WlD63zzzDqWM for ; Mon, 12 Aug 2019 20:08:40 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=arm.com (client-ip=217.140.110.172; helo=foss.arm.com; envelope-from=lorenzo.pieralisi@arm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=arm.com Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lists.ozlabs.org (Postfix) with ESMTP id 466WhT4QN4zDq7k for ; Mon, 12 Aug 2019 20:06:12 +1000 (AEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 13F0115A2; Mon, 12 Aug 2019 03:06:08 -0700 (PDT) Received: from e121166-lin.cambridge.arm.com (unknown [10.1.196.255]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 98CE53F718; Mon, 12 Aug 2019 03:06:05 -0700 (PDT) Date: Mon, 12 Aug 2019 11:06:00 +0100 From: Lorenzo Pieralisi To: Xiaowei Bao Subject: Re: [PATCHv3 2/2] PCI: layerscape: Add CONFIG_PCI_LAYERSCAPE_EP to build EP/RC separately Message-ID: <20190812100600.GA20861@e121166-lin.cambridge.arm.com> References: <20190628013826.4705-1-xiaowei.bao@nxp.com> <20190628013826.4705-2-xiaowei.bao@nxp.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190628013826.4705-2-xiaowei.bao@nxp.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, roy.zang@nxp.com, arnd@arndb.de, devicetree@vger.kernel.org, gregkh@linuxfoundation.org, kstewart@linuxfoundation.org, linuxppc-dev@lists.ozlabs.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, kishon@ti.com, minghuan.Lian@nxp.com, robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org, pombredanne@nexb.com, bhelgaas@google.com, leoyang.li@nxp.com, shawnguo@kernel.org, shawn.lin@rock-chips.com, mingkai.hu@nxp.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Fri, Jun 28, 2019 at 09:38:26AM +0800, Xiaowei Bao wrote: > Add CONFIG_PCI_LAYERSCAPE_EP to build EP/RC separately. > > Signed-off-by: Xiaowei Bao > --- > v2: > - No change. > v3: > - modify the commit message. > > drivers/pci/controller/dwc/Kconfig | 20 ++++++++++++++++++-- > drivers/pci/controller/dwc/Makefile | 3 ++- > 2 files changed, 20 insertions(+), 3 deletions(-) > > diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig > index a6ce1ee..a41ccf5 100644 > --- a/drivers/pci/controller/dwc/Kconfig > +++ b/drivers/pci/controller/dwc/Kconfig > @@ -131,13 +131,29 @@ config PCI_KEYSTONE_EP > DesignWare core functions to implement the driver. > > config PCI_LAYERSCAPE > - bool "Freescale Layerscape PCIe controller" > + bool "Freescale Layerscape PCIe controller - Host mode" > depends on OF && (ARM || ARCH_LAYERSCAPE || COMPILE_TEST) > depends on PCI_MSI_IRQ_DOMAIN > select MFD_SYSCON > select PCIE_DW_HOST > help > - Say Y here if you want PCIe controller support on Layerscape SoCs. > + Say Y here if you want to enable PCIe controller support on Layerscape > + SoCs to work in Host mode. > + This controller can work either as EP or RC. The RCW[HOST_AGT_PEX] What's "The RCW" ? This entry should explain why a kernel configuration should enable it. Lorenzo > + determines which PCIe controller works in EP mode and which PCIe > + controller works in RC mode. > + > +config PCI_LAYERSCAPE_EP > + bool "Freescale Layerscape PCIe controller - Endpoint mode" > + depends on OF && (ARM || ARCH_LAYERSCAPE || COMPILE_TEST) > + depends on PCI_ENDPOINT > + select PCIE_DW_EP > + help > + Say Y here if you want to enable PCIe controller support on Layerscape > + SoCs to work in Endpoint mode. > + This controller can work either as EP or RC. The RCW[HOST_AGT_PEX] > + determines which PCIe controller works in EP mode and which PCIe > + controller works in RC mode. > > config PCI_HISI > depends on OF && (ARM64 || COMPILE_TEST) > diff --git a/drivers/pci/controller/dwc/Makefile b/drivers/pci/controller/dwc/Makefile > index b085dfd..824fde7 100644 > --- a/drivers/pci/controller/dwc/Makefile > +++ b/drivers/pci/controller/dwc/Makefile > @@ -8,7 +8,8 @@ obj-$(CONFIG_PCI_EXYNOS) += pci-exynos.o > obj-$(CONFIG_PCI_IMX6) += pci-imx6.o > obj-$(CONFIG_PCIE_SPEAR13XX) += pcie-spear13xx.o > obj-$(CONFIG_PCI_KEYSTONE) += pci-keystone.o > -obj-$(CONFIG_PCI_LAYERSCAPE) += pci-layerscape.o pci-layerscape-ep.o > +obj-$(CONFIG_PCI_LAYERSCAPE) += pci-layerscape.o > +obj-$(CONFIG_PCI_LAYERSCAPE_EP) += pci-layerscape-ep.o > obj-$(CONFIG_PCIE_QCOM) += pcie-qcom.o > obj-$(CONFIG_PCIE_ARMADA_8K) += pcie-armada8k.o > obj-$(CONFIG_PCIE_ARTPEC6) += pcie-artpec6.o > -- > 1.7.1 >