From patchwork Mon Mar 7 09:07:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hongxing Zhu X-Patchwork-Id: 12771417 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 76631C433EF for ; Mon, 7 Mar 2022 09:21:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=P6J1WWKVT6hwcW9TGNTjPa3cSSiOwVEKeBZcRfej14c=; b=YVUqx03mKEkhbo qYVX4nZt/REqbnYdQ3qpo+v30X45PXhBLMv+/4OYJ+Ox/5lzUiu/iRqdphJPxB5gRDmxgPxzaF8G1 Nt6RpaeOiGXTCNzsBDy2mEXIuJW56Z9HZMZBXt3AhyvVdOh8AR4dZZnOm7PstqNIbTl0U1pCR2E6J JR4sEeZiTC8V2SanXO+d1vqFjBlLCD7bTuncZ/hjZVuQPHBlssTtjb2FXjzBlp5up+dnXLxPSVWfC uxK1jkBiknnv+DUBS0R3ie1xCxtw4oj3Q9rJxgAT/zfY0UtJCfh1Pa5GJ7W5sgMPjv6GrF9zkIJBC 52RKpCBVsv/TyRgOHNQA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nR9Wl-00Gh95-WA; Mon, 07 Mar 2022 09:19:40 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nR9Tu-00GffB-4X; Mon, 07 Mar 2022 09:16:44 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id CED3C200095; Mon, 7 Mar 2022 10:16:40 +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 47249200078; Mon, 7 Mar 2022 10:16:40 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 3CB31183AC94; Mon, 7 Mar 2022 17:16:38 +0800 (+08) From: Richard Zhu To: p.zabel@pengutronix.de, l.stach@pengutronix.de, bhelgaas@google.com, lorenzo.pieralisi@arm.com, robh@kernel.org, shawnguo@kernel.org, vkoul@kernel.org, alexander.stein@ew.tq-group.com Cc: linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com, Richard Zhu Subject: [PATCH v2 7/7] PCI: imx6: Add the iMX8MP PCIe support Date: Mon, 7 Mar 2022 17:07:34 +0800 Message-Id: <1646644054-24421-8-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1646644054-24421-1-git-send-email-hongxing.zhu@nxp.com> References: <1646644054-24421-1-git-send-email-hongxing.zhu@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220307_011642_474204_A01A9E3C X-CRM114-Status: GOOD ( 12.68 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add the i.MX8MP PCIe support. Signed-off-by: Richard Zhu Acked-by: Lorenzo Pieralisi --- drivers/pci/controller/dwc/pci-imx6.c | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c index bb662f90d4f3..4d34f0c88550 100644 --- a/drivers/pci/controller/dwc/pci-imx6.c +++ b/drivers/pci/controller/dwc/pci-imx6.c @@ -51,6 +51,7 @@ enum imx6_pcie_variants { IMX7D, IMX8MQ, IMX8MM, + IMX8MP, }; #define IMX6_PCIE_FLAG_IMX6_PHY BIT(0) @@ -379,6 +380,7 @@ static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie) reset_control_assert(imx6_pcie->pciephy_reset); fallthrough; case IMX8MM: + case IMX8MP: reset_control_assert(imx6_pcie->apps_reset); break; case IMX6SX: @@ -407,7 +409,8 @@ static void imx6_pcie_assert_core_reset(struct imx6_pcie *imx6_pcie) static unsigned int imx6_pcie_grp_offset(const struct imx6_pcie *imx6_pcie) { WARN_ON(imx6_pcie->drvdata->variant != IMX8MQ && - imx6_pcie->drvdata->variant != IMX8MM); + imx6_pcie->drvdata->variant != IMX8MM && + imx6_pcie->drvdata->variant != IMX8MP); return imx6_pcie->controller_id == 1 ? IOMUXC_GPR16 : IOMUXC_GPR14; } @@ -448,6 +451,7 @@ static int imx6_pcie_enable_ref_clk(struct imx6_pcie *imx6_pcie) break; case IMX8MM: case IMX8MQ: + case IMX8MP: ret = clk_prepare_enable(imx6_pcie->pcie_aux); if (ret) { dev_err(dev, "unable to enable pcie_aux clock\n"); @@ -503,6 +507,7 @@ static int imx6_pcie_clk_enable(struct imx6_pcie *imx6_pcie) switch (imx6_pcie->drvdata->variant) { case IMX8MM: + case IMX8MP: if (phy_power_on(imx6_pcie->phy)) dev_err(dev, "unable to power on PHY\n"); break; @@ -603,6 +608,7 @@ static int imx6_pcie_deassert_core_reset(struct imx6_pcie *imx6_pcie) reset_control_deassert(imx6_pcie->pciephy_reset); break; case IMX8MM: + case IMX8MP: if (phy_init(imx6_pcie->phy)) dev_err(dev, "waiting for phy ready timeout!\n"); break; @@ -678,6 +684,7 @@ static void imx6_pcie_init_phy(struct imx6_pcie *imx6_pcie) { switch (imx6_pcie->drvdata->variant) { case IMX8MM: + case IMX8MP: /* * The PHY initialization had been done in the PHY * driver, break here directly. @@ -823,6 +830,7 @@ static void imx6_pcie_ltssm_enable(struct device *dev) case IMX7D: case IMX8MQ: case IMX8MM: + case IMX8MP: reset_control_deassert(imx6_pcie->apps_reset); break; } @@ -938,6 +946,7 @@ static void imx6_pcie_host_exit(struct pcie_port *pp) imx6_pcie_clk_disable(imx6_pcie); switch (imx6_pcie->drvdata->variant) { case IMX8MM: + case IMX8MP: if (phy_power_off(imx6_pcie->phy)) dev_err(dev, "unable to power off phy\n"); phy_exit(imx6_pcie->phy); @@ -972,6 +981,7 @@ static void imx6_pcie_ltssm_disable(struct device *dev) break; case IMX7D: case IMX8MM: + case IMX8MP: reset_control_assert(imx6_pcie->apps_reset); break; default: @@ -1028,6 +1038,7 @@ static int imx6_pcie_suspend_noirq(struct device *dev) imx6_pcie_clk_disable(imx6_pcie); switch (imx6_pcie->drvdata->variant) { case IMX8MM: + case IMX8MP: if (phy_power_off(imx6_pcie->phy)) dev_err(dev, "unable to power off PHY\n"); phy_exit(imx6_pcie->phy); @@ -1177,6 +1188,7 @@ static int imx6_pcie_probe(struct platform_device *pdev) } break; case IMX8MM: + case IMX8MP: imx6_pcie->pcie_aux = devm_clk_get(dev, "pcie_aux"); if (IS_ERR(imx6_pcie->pcie_aux)) return dev_err_probe(dev, PTR_ERR(imx6_pcie->pcie_aux), @@ -1327,6 +1339,10 @@ static const struct imx6_pcie_drvdata drvdata[] = { .variant = IMX8MM, .flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND, }, + [IMX8MP] = { + .variant = IMX8MP, + .flags = IMX6_PCIE_FLAG_SUPPORTS_SUSPEND, + }, }; static const struct of_device_id imx6_pcie_of_match[] = { @@ -1336,6 +1352,7 @@ static const struct of_device_id imx6_pcie_of_match[] = { { .compatible = "fsl,imx7d-pcie", .data = &drvdata[IMX7D], }, { .compatible = "fsl,imx8mq-pcie", .data = &drvdata[IMX8MQ], }, { .compatible = "fsl,imx8mm-pcie", .data = &drvdata[IMX8MM], }, + { .compatible = "fsl,imx8mp-pcie", .data = &drvdata[IMX8MP], }, {}, };