From patchwork Mon Jan 16 05:41:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Zhu X-Patchwork-Id: 1726901 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=linux-pci-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by legolas.ozlabs.org (Postfix) with ESMTP id 4NwM4B65w6z23fT for ; Mon, 16 Jan 2023 17:07:06 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231978AbjAPGHE (ORCPT ); Mon, 16 Jan 2023 01:07:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231945AbjAPGGS (ORCPT ); Mon, 16 Jan 2023 01:06:18 -0500 Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 285303AB3; Sun, 15 Jan 2023 22:06:13 -0800 (PST) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id CB602200749; Mon, 16 Jan 2023 07:06:11 +0100 (CET) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 68E73200E53; Mon, 16 Jan 2023 07:06:11 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 9E3D7183ABF3; Mon, 16 Jan 2023 14:06:09 +0800 (+08) From: Richard Zhu To: l.stach@pengutronix.de, bhelgaas@google.com, robh+dt@kernel.org, lorenzo.pieralisi@arm.com, shawnguo@kernel.org, kishon@ti.com, kw@linux.com, frank.li@nxp.com Cc: hongxing.zhu@nxp.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com Subject: [PATCH v5 13/14] PCI: imx6: Add i.MX8MM PCIe EP support Date: Mon, 16 Jan 2023 13:41:23 +0800 Message-Id: <1673847684-31893-14-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1673847684-31893-1-git-send-email-hongxing.zhu@nxp.com> References: <1673847684-31893-1-git-send-email-hongxing.zhu@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org Add i.MX8MM PCIe EP support. Signed-off-by: Richard Zhu --- drivers/pci/controller/dwc/pci-imx6.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index 8190b1de67f9..eab332eb4c36 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -53,6 +53,7 @@ enum imx6_pcie_variants { IMX8MM, IMX8MP, IMX8MQ_EP, + IMX8MM_EP, }; #define IMX6_PCIE_FLAG_IMX6_PHY BIT(0) @@ -156,6 +157,7 @@ static unsigned int imx6_pcie_grp_offset(const struct imx6_pcie *imx6_pcie) WARN_ON(imx6_pcie->drvdata->variant != IMX8MQ && imx6_pcie->drvdata->variant != IMX8MQ_EP && imx6_pcie->drvdata->variant != IMX8MM && + imx6_pcie->drvdata->variant != IMX8MM_EP && imx6_pcie->drvdata->variant != IMX8MP); return imx6_pcie->controller_id == 1 ? IOMUXC_GPR16 : IOMUXC_GPR14; } @@ -319,6 +321,7 @@ static void imx6_pcie_init_phy(struct imx6_pcie *imx6_pcie) { switch (imx6_pcie->drvdata->variant) { case IMX8MM: + case IMX8MM_EP: case IMX8MP: /* * The PHY initialization had been done in the PHY @@ -577,6 +580,7 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie) case IMX7D: break; case IMX8MM: + case IMX8MM_EP: case IMX8MQ: case IMX8MQ_EP: case IMX8MP: @@ -623,6 +627,7 @@ static void imx6_pcie_disable_ref_clk(struct imx6_pcie *imx6_pcie) IMX7D_GPR12_PCIE_PHY_REFCLK_SEL); break; case IMX8MM: + case IMX8MM_EP: case IMX8MQ: case IMX8MQ_EP: case IMX8MP: @@ -694,6 +699,7 @@ static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie) reset_control_assert(imx6_pcie->pciephy_reset); fallthrough; case IMX8MM: + case IMX8MM_EP: case IMX8MP: reset_control_assert(imx6_pcie->apps_reset); break; @@ -771,6 +777,7 @@ static int imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie) break; case IMX6Q: /* Nothing to do */ case IMX8MM: + case IMX8MM_EP: case IMX8MP: break; } @@ -822,6 +829,7 @@ static void imx6_pcie_ltssm_enable(struct device *dev) case IMX8MQ: case IMX8MQ_EP: case IMX8MM: + case IMX8MM_EP: case IMX8MP: reset_control_deassert(imx6_pcie->apps_reset); break; @@ -843,6 +851,7 @@ static void imx6_pcie_ltssm_disable(struct device *dev) case IMX8MQ: case IMX8MQ_EP: case IMX8MM: + case IMX8MM_EP: case IMX8MP: reset_control_assert(imx6_pcie->apps_reset); break; @@ -1095,6 +1104,7 @@ static int imx6_add_pcie_ep(struct imx6_pcie *imx6_pcie, switch (imx6_pcie->drvdata->variant) { case IMX8MQ_EP: + case IMX8MM_EP: pcie_dbi2_offset = SZ_1M; break; default: @@ -1307,6 +1317,7 @@ static int imx6_pcie_probe(struct platform_device *pdev) } break; case IMX8MM: + case IMX8MM_EP: case IMX8MP: imx6_pcie->pcie_aux = devm_clk_get(dev, "pcie_aux"); if (IS_ERR(imx6_pcie->pcie_aux)) @@ -1472,6 +1483,11 @@ static const struct imx6_pcie_drvdata drvdata[] = { .mode = DW_PCIE_EP_TYPE, .gpr = "fsl,imx8mq-iomuxc-gpr", }, + [IMX8MM_EP] = { + .variant = IMX8MM_EP, + .mode = DW_PCIE_EP_TYPE, + .gpr = "fsl,imx8mm-iomuxc-gpr", + }, }; static const struct of_device_id imx6_pcie_of_match[] = { @@ -1483,6 +1499,7 @@ static const struct of_device_id imx6_pcie_of_match[] = { { .compatible = "fsl,imx8mm-pcie", .data = &drvdata[IMX8MM], }, { .compatible = "fsl,imx8mp-pcie", .data = &drvdata[IMX8MP], }, { .compatible = "fsl,imx8mq-pcie-ep", .data = &drvdata[IMX8MQ_EP], }, + { .compatible = "fsl,imx8mm-pcie-ep", .data = &drvdata[IMX8MM_EP], }, {}, };