Message ID | 1616564059-8713-3-git-send-email-hongxing.zhu@nxp.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=bxq6=IW=lists.infradead.org=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@kernel.org> 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=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 6A7FFC433E0 for <linux-arm-kernel@archiver.kernel.org>; Wed, 24 Mar 2021 05:50:21 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (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 EEFDF619EB for <linux-arm-kernel@archiver.kernel.org>; Wed, 24 Mar 2021 05:50:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EEFDF619EB Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; 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=jmWY+4UEyEwq7jEt20FOYEo65O6mYTUljej/XGHl3m4=; b=LZTqTiK0YtdVX5vnvHEjdI5dwH VoLgRY5jjbl8g9UkwH3R2aZiAlPQU4v8vlqePcqNcnpMpP97mHeEDweHbIyFqNRCiHl1D3PquFtNg ynVQm6NDUeZsNJnkLGV0LUNxPuXoTuAHy/2cPuZgCs1OdVbDpVGC2Z0Bzb4YlOwZu3DaAXvSfbeSd 9BpQpRHTFtggrvXUmIYoQbphk7ipaIC7XIrNRxFjlEyQmAPGf25m1TO1FnPkrKhu39ZWBtacuHV9S fKdTsIZIeoQt1yPslUkpcCBYgRbmw22ITwSjDagts/ARd0XiFtFi4BnbH7ybuKenQ4wXI/UtioW8y oSJrYN2g==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lOwNc-00GLkl-Eb; Wed, 24 Mar 2021 05:48:32 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lOwNB-00GLhQ-Eh for linux-arm-kernel@lists.infradead.org; Wed, 24 Mar 2021 05:48:08 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id E0F1F202504; Wed, 24 Mar 2021 06:48:04 +0100 (CET) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id CF28E200DE1; Wed, 24 Mar 2021 06:47:59 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 3883A402AC; Wed, 24 Mar 2021 06:47:53 +0100 (CET) From: Richard Zhu <hongxing.zhu@nxp.com> To: l.stach@pengutronix.de, andrew.smirnov@gmail.com, shawnguo@kernel.org, kw@linux.com, bhelgaas@google.com, stefan@agner.ch, lorenzo.pieralisi@arm.com Cc: linux-pci@vger.kernel.org, linux-imx@nxp.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, Richard Zhu <hongxing.zhu@nxp.com> Subject: [PATCH v2 2/3] arm64: dts: imx8mq-evk: add one regulator used to power up pcie phy Date: Wed, 24 Mar 2021 13:34:18 +0800 Message-Id: <1616564059-8713-3-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1616564059-8713-1-git-send-email-hongxing.zhu@nxp.com> References: <1616564059-8713-1-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-20210324_054805_834936_48BB3978 X-CRM114-Status: UNSURE ( 8.03 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org |
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add one regulator used to power up pcie phy
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diff --git a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts index 85b045253a0e..4d2035e3dd7c 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-evk.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-evk.dts @@ -318,6 +318,7 @@ <&clk IMX8MQ_CLK_PCIE1_PHY>, <&pcie0_refclk>; clock-names = "pcie", "pcie_aux", "pcie_phy", "pcie_bus"; + vph-supply = <&vgen5_reg>; status = "okay"; };
Both 1.8v and 3.3v power supplies can be used by i.MX8MQ PCIe PHY. In default, the PCIE_VPH voltage is suggested to be 1.8v refer to data sheet. When PCIE_VPH is supplied by 3.3v in the HW schematic design, the VREG_BYPASS bits of GPR registers should be cleared from default value 1b'1 to 1b'0. Thus, the internal 3v3 to 1v8 translator would be turned on. Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com> --- arch/arm64/boot/dts/freescale/imx8mq-evk.dts | 1 + 1 file changed, 1 insertion(+)