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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR03MB2689 X-Mailman-Approved-At: Wed, 25 Oct 2017 17:17:15 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.24 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bao Xiaowei Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Add the property of inbind and outbind windows number for ep driver. add the inband or outband window entry for pcie controller ep driver used in dts. Signed-off-by: Bao Xiaowei Acked-by: Minghuan Lian --- arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi index 06b5e12d04d8..f8332669663c 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a.dtsi @@ -674,6 +674,8 @@ device_type = "pci"; dma-coherent; num-lanes = <4>; + num-ib-windows = <6>; + num-ob-windows = <6>; bus-range = <0x0 0xff>; ranges = <0x81000000 0x0 0x00000000 0x40 0x00010000 0x0 0x00010000 /* downstream I/O */ 0x82000000 0x0 0x40000000 0x40 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */ @@ -699,6 +701,8 @@ device_type = "pci"; dma-coherent; num-lanes = <2>; + num-ib-windows = <6>; + num-ob-windows = <6>; bus-range = <0x0 0xff>; ranges = <0x81000000 0x0 0x00000000 0x48 0x00010000 0x0 0x00010000 /* downstream I/O */ 0x82000000 0x0 0x40000000 0x48 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */ @@ -724,6 +728,8 @@ device_type = "pci"; dma-coherent; num-lanes = <2>; + num-ib-windows = <6>; + num-ob-windows = <6>; bus-range = <0x0 0xff>; ranges = <0x81000000 0x0 0x00000000 0x50 0x00010000 0x0 0x00010000 /* downstream I/O */ 0x82000000 0x0 0x40000000 0x50 0x40000000 0x0 0x40000000>; /* non-prefetchable memory */ From patchwork Tue Oct 24 08:30:44 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaowei Bao X-Patchwork-Id: 830112 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3yMKpK5W76z9rxj for ; Wed, 25 Oct 2017 17:23:37 +1100 (AEDT) Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3yMKpK4CFlzDqlv for ; 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Tue, 24 Oct 2017 08:49:09 +0000 Authentication-Results: spf=fail (sender IP is 192.88.168.50) smtp.mailfrom=nxp.com; nxp.com; dkim=none (message not signed) header.d=none;nxp.com; dmarc=fail action=none header.from=nxp.com; Received-SPF: Fail (protection.outlook.com: domain of nxp.com does not designate 192.88.168.50 as permitted sender) receiver=protection.outlook.com; client-ip=192.88.168.50; helo=tx30smr01.am.freescale.net; Received: from tx30smr01.am.freescale.net (192.88.168.50) by BY2FFO11FD032.mail.protection.outlook.com (10.1.14.210) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.156.4 via Frontend Transport; Tue, 24 Oct 2017 08:49:08 +0000 Received: from titan.ap.freescale.net ([10.192.208.233]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id v9O8mfxd031253; Tue, 24 Oct 2017 01:49:01 -0700 From: Bao Xiaowei To: , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH 2/3] ARMv8: layerscape: add the pcie ep function support Date: Tue, 24 Oct 2017 16:30:44 +0800 Message-ID: <20171024083045.31135-3-xiaowei.bao@nxp.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20171024083045.31135-1-xiaowei.bao@nxp.com> References: <20171024083045.31135-1-xiaowei.bao@nxp.com> X-EOPAttributedMessage: 0 X-Matching-Connectors: 131533085493312775; 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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR03MB2692 X-Mailman-Approved-At: Wed, 25 Oct 2017 17:17:15 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.24 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bao Xiaowei Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Add the pcie controller ep function support of layerscape base on pcie ep framework. Signed-off-by: Bao Xiaowei --- drivers/pci/dwc/pci-layerscape.c | 137 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 131 insertions(+), 6 deletions(-) diff --git a/drivers/pci/dwc/pci-layerscape.c b/drivers/pci/dwc/pci-layerscape.c index 87fa486bee2c..5c6fa7534a8e 100644 --- a/drivers/pci/dwc/pci-layerscape.c +++ b/drivers/pci/dwc/pci-layerscape.c @@ -34,7 +34,12 @@ /* PEX Internal Configuration Registers */ #define PCIE_STRFMR1 0x71c /* Symbol Timer & Filter Mask Register1 */ +#define PCIE_DBI2_BASE 0x1000 /* DBI2 base address*/ +#define PCIE_MSI_MSG_DATA_OFF 0x5c /* MSI Data register address*/ +#define PCIE_MSI_OB_SIZE 4096 +#define PCIE_MSI_ADDR_OFFSET (1024 * 1024) #define PCIE_IATU_NUM 6 +#define PCIE_EP_ADDR_SPACE_SIZE 0x100000000 struct ls_pcie_drvdata { u32 lut_offset; @@ -44,12 +49,20 @@ struct ls_pcie_drvdata { const struct dw_pcie_ops *dw_pcie_ops; }; +struct ls_pcie_ep { + dma_addr_t msi_phys_addr; + void __iomem *msi_virt_addr; + u64 msi_msg_addr; + u16 msi_msg_data; +}; + struct ls_pcie { struct dw_pcie *pci; void __iomem *lut; struct regmap *scfg; const struct ls_pcie_drvdata *drvdata; int index; + struct ls_pcie_ep *pcie_ep; }; #define to_ls_pcie(x) dev_get_drvdata((x)->dev) @@ -263,6 +276,113 @@ static const struct of_device_id ls_pcie_of_match[] = { { }, }; +static void ls_pcie_raise_msi_irq(struct ls_pcie_ep *pcie_ep) +{ + iowrite32(pcie_ep->msi_msg_data, pcie_ep->msi_virt_addr); +} + +static void ls_pcie_ep_msi_init(struct dw_pcie_ep *ep) +{ + struct dw_pcie *pci = to_dw_pcie_from_ep(ep); + struct ls_pcie *pcie = to_ls_pcie(pci); + struct ls_pcie_ep *pcie_ep = pcie->pcie_ep; + struct device *dev = pci->dev; + u32 free_win; + + pcie_ep->msi_phys_addr = ep->phys_base + PCIE_MSI_ADDR_OFFSET; + + pcie_ep->msi_virt_addr = ioremap(pcie_ep->msi_phys_addr, + PCIE_MSI_OB_SIZE); + if (!pcie_ep->msi_virt_addr) + dev_err(dev, "failed to map MSI outbound region\n"); + + pcie_ep->msi_msg_addr = ioread32(pci->dbi_base + MSI_MESSAGE_ADDR_L32) | + (((u64)ioread32(pci->dbi_base + MSI_MESSAGE_ADDR_U32)) << 32); + pcie_ep->msi_msg_data = ioread16(pci->dbi_base + PCIE_MSI_MSG_DATA_OFF); + + /* outbound iATU for MSI */ + free_win = find_first_zero_bit(&ep->ob_window_map, + sizeof(ep->ob_window_map)); + if (free_win >= ep->num_ob_windows) + dev_err(pci->dev, "no free outbound window\n"); + + dw_pcie_prog_outbound_atu(pci, free_win, PCIE_ATU_TYPE_MEM, + pcie_ep->msi_phys_addr, + pcie_ep->msi_msg_addr, + PCIE_MSI_OB_SIZE); + + set_bit(free_win, &ep->ob_window_map); + ep->outbound_addr[free_win] = pcie_ep->msi_phys_addr; +} + +static int ls_pcie_raise_irq(struct dw_pcie_ep *ep, + enum pci_epc_irq_type type, u8 interrupt_num) +{ + struct dw_pcie *pci = to_dw_pcie_from_ep(ep); + struct ls_pcie *pcie = to_ls_pcie(pci); + struct ls_pcie_ep *pcie_ep = pcie->pcie_ep; + u32 index; + + ls_pcie_ep_msi_init(ep); + + ls_pcie_raise_msi_irq(pcie_ep); + + for (index = 0; index < ep->num_ob_windows; index++) { + if (ep->outbound_addr[index] == pcie_ep->msi_phys_addr) + break; + } + + if (index >= ep->num_ob_windows) + return -1; + + dw_pcie_disable_atu(pci, index, DW_PCIE_REGION_OUTBOUND); + clear_bit(index, &ep->ob_window_map); + + return 0; +} + +static struct dw_pcie_ep_ops pcie_ep_ops = { + .raise_irq = ls_pcie_raise_irq, +}; + +static int __init ls_add_pcie_ep(struct ls_pcie *pcie, + struct platform_device *pdev) +{ + struct dw_pcie *pci = pcie->pci; + struct device *dev = pci->dev; + struct dw_pcie_ep *ep; + struct ls_pcie_ep *pcie_ep; + struct resource *cfg_res; + int ret; + + ep = &pci->ep; + ep->ops = &pcie_ep_ops; + + pcie_ep = devm_kzalloc(dev, sizeof(*pcie_ep), GFP_KERNEL); + if (!pcie_ep) + return -ENOMEM; + + pcie->pcie_ep = pcie_ep; + + cfg_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "config"); + if (cfg_res) { + ep->phys_base = cfg_res->start; + ep->addr_size = PCIE_EP_ADDR_SPACE_SIZE; + } else { + dev_err(dev, "missing *config* space\n"); + return -ENODEV; + } + + ret = dw_pcie_ep_init(ep); + if (ret) { + dev_err(dev, "failed to initialize endpoint\n"); + return ret; + } + + return 0; + +} + static int __init ls_add_pcie_port(struct ls_pcie *pcie) { struct dw_pcie *pci = pcie->pci; @@ -309,16 +429,21 @@ static int __init ls_pcie_probe(struct platform_device *pdev) if (IS_ERR(pci->dbi_base)) return PTR_ERR(pci->dbi_base); - pcie->lut = pci->dbi_base + pcie->drvdata->lut_offset; + pci->dbi_base2 = pci->dbi_base + PCIE_DBI2_BASE; - if (!ls_pcie_is_bridge(pcie)) - return -ENODEV; + pcie->lut = pci->dbi_base + pcie->drvdata->lut_offset; platform_set_drvdata(pdev, pcie); - ret = ls_add_pcie_port(pcie); - if (ret < 0) - return ret; + if (!ls_pcie_is_bridge(pcie)) { + ret = ls_add_pcie_ep(pcie, pdev); + if (ret < 0) + return ret; + } else { + ret = ls_add_pcie_port(pcie); + if (ret < 0) + return ret; + } return 0; } From patchwork Tue Oct 24 08:30:45 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaowei Bao X-Patchwork-Id: 830114 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3yMKrB50NNz9sRV for ; 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Tue, 24 Oct 2017 01:49:10 -0700 From: Bao Xiaowei To: , , , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH 3/3] ARMv8: pcie: make the DWC EP driver support for layerscape Date: Tue, 24 Oct 2017 16:30:45 +0800 Message-ID: <20171024083045.31135-4-xiaowei.bao@nxp.com> X-Mailer: git-send-email 2.14.1 In-Reply-To: <20171024083045.31135-1-xiaowei.bao@nxp.com> References: <20171024083045.31135-1-xiaowei.bao@nxp.com> X-EOPAttributedMessage: 0 X-Matching-Connectors: 131533085588447785; (91ab9b29-cfa4-454e-5278-08d120cd25b8); () X-Forefront-Antispam-Report: CIP:192.88.168.50; IPV:NLI; CTRY:US; EFV:NLI; SFV:NSPM; SFS:(10009020)(6009001)(336005)(346002)(376002)(39860400002)(39380400002)(2980300002)(1109001)(1110001)(339900001)(199003)(189002)(4326008)(39060400002)(1076002)(76176999)(48376002)(6636002)(2950100002)(6666003)(50466002)(305945005)(81166006)(81156014)(68736007)(356003)(498600001)(47776003)(50986999)(50226002)(8676002)(189998001)(36756003)(85426001)(5660300001)(33646002)(2201001)(105606002)(106466001)(86362001)(2906002)(8936002)(7416002)(97736004)(316002)(8656005)(8656005)(16586007)(110136005)(77096006)(5003940100001)(53936002)(104016004)(921003)(1121003)(2101003)(83996005); 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Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR03MB2704 X-Mailman-Approved-At: Wed, 25 Oct 2017 17:17:15 +1100 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.24 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bao Xiaowei Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" Layerscape pcie controllers support RC or EP mode, Add the EP mode support in Kconfig, the driver will support both RC and EP mode, and the driver is able to judge the pcie controllers work on RC or EP mode. Signed-off-by: Bao Xiaowei Acked-by: Minghuan Lian --- drivers/pci/dwc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/dwc/Kconfig b/drivers/pci/dwc/Kconfig index 22ec82fcdea2..b5f507795779 100644 --- a/drivers/pci/dwc/Kconfig +++ b/drivers/pci/dwc/Kconfig @@ -108,6 +108,7 @@ config PCI_LAYERSCAPE depends on PCI_MSI_IRQ_DOMAIN select MFD_SYSCON select PCIE_DW_HOST + select PCIE_DW_EP help Say Y here if you want PCIe controller support on Layerscape SoCs.