From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=192.19.144.205 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792603707; b=FclPfbgiHQu1yqD8xFh3Jv2ic+1yfU7DtaXTl8kSSzJT51rzeGi75Rln8n9c2WgptuHm zthYKwkXM+NqtJWkhaA1wXjechUZWUa9QpTJ22WlBzG0noKzNlZfRZRxf/C76joreim5x GTPANcvavnRcxCnt/JZStiXydV81N5IbJQoVL3A8dluB5c3hpiJPw1Ei3XabeejqSCgFg 9g/8nDntNtO8YQnjoG6niy+K779YbOUgkmAx978PjJHQwhb/SuVFP8NijIb0GqepeGV+y SfkkajpLVkUWgX/ioEpAMpxKCMgDHhPgmsnecmerIRU/aKlv6CC+P+JOXxNv+kblweg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792603707; h=DMARC-Filter:Received:DKIM-Filter:DKIM-Signature:Received:From:To:Cc: Subject:Date:Message-ID:X-Mailer:In-Reply-To:References:MIME-Version: Content-Type:Content-Transfer-Encoding; bh=ZdsRy3FdNj9Kswl3REe6DGR89Sl6i9oOncs6NvWhlhI=; b=QQkFJu1SNak7kDllOoUatLDTJLuMp6wwVpCzeFXl84UTlxtZQHmn+zFZGjTYnHmU+Gqp AelYEZOCWr94UsKKH73H1Vz2dwKH0v/idXRBCbcVIIblnAtDDgVaHauQyOKcLIqTNyOSy U3YFvT/SACEtYkXKeuZPBGzLviv8xlmZqKfp7G1nYASaq0m9qvIocx9IuDssOWZPZjpYv HxOuAUFyQltnIw2xgHChaMufwyxPYixdDHun00A17a6gql4k/JeraZCrg7BKwFmlxvT5U lPMA9qoAfZr91+QQ7cjz+ORXBBKjC4TFbuj4dUlO2ZcvNTCi3jV4ywOXV7iwrKeO5uQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=broadcom.com; spf=fail smtp.mailfrom=broadcom.com; dkim=pass header.d=broadcom.com header.i=@broadcom.com header.a=rsa-sha256 header.s=dkimrelay header.b=NDLGehXr; arc=none smtp.remote-ip=192.19.144.205 Received: from relay.smtp-ext.broadcom.com (lpdvsmtp10.broadcom.com [192.19.144.205]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9EA3F606A337; Wed, 21 Oct 2026 17:28:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 9EA3F606A337 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=broadcom.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=broadcom.com header.i=@broadcom.com header.a=rsa-sha256 header.s=dkimrelay header.b=NDLGehXr Received: from mail-acc-it-01.broadcom.com (mail-acc-it-01.acc.broadcom.net [10.35.36.83]) by relay.smtp-ext.broadcom.com (Postfix) with ESMTP id 6F7EAC0003DA; Wed, 21 Oct 2026 10:28:25 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 relay.smtp-ext.broadcom.com 6F7EAC0003DA DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1792603705; bh=FtqWf2DPt79qNMVOTUeCCsa1564XmuQp15xUpDs450I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=NDLGehXrkry6eXTAIRQNMA8nxMTkQq0yzevWo0m07xo2UhCstGiPHLXmUIOsqfXGG I/+lG7M+N/lQZ0/zuKsgZfpajrtZR0/88GlnAxSDWWuAOT9oF3HhJxgpJBF3jpqmAU /us/ByY8Wa7wOwOPAwS8FH2SJ/YMqU6V0Lqsn1ks= Received: from fainelli-desktop.igp.broadcom.net (fainelli-desktop.dhcp.broadcom.net [10.67.48.245]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mail-acc-it-01.broadcom.com (Postfix) with ESMTPSA id 0DDD9AEA2; Wed, 21 Oct 2026 13:28:23 -0400 (EDT) From: Florian Fainelli To: linux-arm-kernel@lists.infradead.org Cc: Florian Fainelli , Vinod Koul , Neil Armstrong , Manivannan Sadhasivam , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Greg Kroah-Hartman , Ray Jui , Scott Branden , Broadcom internal kernel review list , Alan Stern , =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= , Kishon Vijay Abraham I , Yendapally Reddy Dhananjaya Reddy , linux-phy@lists.infradead.org (open list:GENERIC PHY FRAMEWORK), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), linux-kernel@vger.kernel.org (open list), linux-usb@vger.kernel.org (open list:USB SUBSYSTEM) Subject: [PATCH 2/9] dt-bindings: phy: bcm-ns-usb3-phy: Describe the NSP variant Date: Wed, 21 Oct 2026 10:28:11 -0700 Message-ID: <20261021172819.668120-3-florian.fainelli@broadcom.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20261021172819.668120-1-florian.fainelli@broadcom.com> References: <20261021172819.668120-1-florian.fainelli@broadcom.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Northstar Plus uses the Northstar Bx PHY register sequence but also requires coordinated USB2 and USB3 core resets and a USB2 IDM interface clock enable. Add an NSP compatible with a required USB2 DMP phandle. Describe the shared PHY relationship with EHCI, OHCI and xHCI so initialization finishes before any host starts operating. Signed-off-by: Florian Fainelli --- .../bindings/phy/bcm-ns-usb3-phy.yaml | 23 +++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.yaml b/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.yaml index 7fd419db45d0..00d69b86cbff 100644 --- a/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.yaml +++ b/Documentation/devicetree/bindings/phy/bcm-ns-usb3-phy.yaml @@ -14,6 +14,9 @@ description: | Known B1: BCM4707 rev 6 Known C0: BCM47094 rev 0 + Northstar Plus uses the Bx programming sequence, with coordinated USB2 and + USB3 resets. Its PHY is shared by the EHCI, OHCI and xHCI controllers. + maintainers: - Rafał Miłecki @@ -22,6 +25,7 @@ properties: enum: - brcm,ns-ax-usb3-phy - brcm,ns-bx-usb3-phy + - brcm,nsp-usb3-phy reg: description: address of MDIO bus device @@ -32,6 +36,13 @@ properties: description: Phandle to the DMP (Device Management Plugin) syscon + usb2-dmp-syscon: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the USB2 DMP on Northstar Plus, for its interface clock and + reset. All USB host controllers must reference this shared PHY so that + initialization completes before any of them starts using it. + "#phy-cells": const: 0 @@ -41,6 +52,18 @@ required: - usb3-dmp-syscon - "#phy-cells" +allOf: + - if: + properties: + compatible: + const: brcm,nsp-usb3-phy + then: + required: + - usb2-dmp-syscon + else: + properties: + usb2-dmp-syscon: false + additionalProperties: false examples: -- 2.53.0