From nobody Fri Jul 24 21:53:04 2026 Received: from server.couthit.com (server.couthit.com [162.240.164.96]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 04C5840627B; Thu, 23 Jul 2026 10:22:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=162.240.164.96 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784802180; cv=none; b=CODzDDSz7DuO6NrSLmiS6ryWQw4zaDjRAL4aCLcHBfy7MN0BQASlRayXzGAXXyQQhxM8VfAfG6e+YErqfirYtxmkluGUp8yvkXoFJacH9NVUkissPurc9sRdi7CsTBoxwlpg+H0xNhVpXTioai+9O+uAWjDR9dV9sbdA0uzfXAI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784802180; c=relaxed/simple; bh=SgpYVi4pd5xuw/dyP61w++5dlkpsayvZj7AnTycvcno=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=iucyF0C+VKHzXUzio5fNl0F4OV5gmS2QamBtJMbPwGZQLZ/aS8zwK6lpeFZT0u7HOsFiL8xskkYG8AudhtFcMRtWNk9FTsMDbJL5J7pt1riq/D/GzQRamPTWhn17OJ3IxFxv6ZJHtm68t2BHIIyaNpCVSzy4eyEoX9Clk51uw/g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=couthit.com; spf=pass smtp.mailfrom=couthit.com; dkim=pass (2048-bit key) header.d=couthit.com header.i=@couthit.com header.b=HhrlAtzi; arc=none smtp.client-ip=162.240.164.96 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=couthit.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=couthit.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=couthit.com header.i=@couthit.com header.b="HhrlAtzi" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=couthit.com ; s=default; h=Content-Transfer-Encoding:MIME-Version:Message-ID:Date:Subject :Cc:To:From:Sender:Reply-To:Content-Type:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: In-Reply-To:References:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=mW4ejC3E/yQSD3rKvCaGGwAL8BFUOuhE+OUcGDIvMhs=; b=HhrlAtziqGoSMa+InSNHpW0NkZ rceP7QKUXZ5FoIc7FDZ64fn9WyCaP2gbfWRhuELozm3F5fEL/lSVTHs5iGzoAcbUajwoaTOz+Bcbw kzGNOoqA9AIGHrTjgt6AY/NwgVjNMnR2EYHp/0id9aEEuMLPCWFFNzPB9Qsh7LVeUNpkm4I/qDolO hI1rB28UPCZfcRZhK07P5AMFvMVwor6DDWNyNSH1fckZdzQQ711HXxSrl5sxyRP4SKyqB0yzDgVZ3 7yss3NYz8YKgdaY1JstKarPGxM4NwIIezO1SS6HM4XAJYIjsn66/WMWGjWEexd+1xg20amSu1noQs o5yS/akA==; Received: from [115.246.246.98] (port=1539 helo=cypher.couthit.local) by server.couthit.com with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.99.4) (envelope-from ) id 1wmqZi-0000000BPnw-3WLd; Thu, 23 Jul 2026 06:22:47 -0400 From: Parvathi Pudi To: nm@ti.com, vigneshr@ti.com, afd@ti.com, aaro.koskinen@iki.fi, andreas@kemnade.info, khilman@baylibre.com, rogerq@kernel.org, tony@atomide.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, richardcochran@gmail.com Cc: linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, danishanwar@ti.com, pratheesh@ti.com, j-rameshbabu@ti.com, praneeth@ti.com, srk@ti.com, rogerq@ti.com, krishna@couthit.com, mohan@couthit.com, pmohan@couthit.com, basharath@couthit.com, parvathi@couthit.com, Murali Karicheri Subject: [PATCH] arm: dts: ti: Add device tree nodes for PRU-ICSS1 instance on AM571x Date: Thu, 23 Jul 2026 15:47:23 +0530 Message-ID: <20260723102041.372148-1-parvathi@couthit.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - server.couthit.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - couthit.com X-Get-Message-Sender-Via: server.couthit.com: authenticated_id: parvathi@couthit.com X-Authenticated-Sender: server.couthit.com: parvathi@couthit.com X-Source: X-Source-Args: X-Source-Dir: Content-Type: text/plain; charset="utf-8" From: Roger Quadros The TI Sitara AM571x device has two PRU-ICSS subsystems: PRU-ICSS1 and PRU-ICSS2. DUAL-MAC Ethernet support is already available on PRU-ICSS2. This patch adds device tree support to enable DUAL-MAC mode on PRU-ICSS1 for the AM571x IDK board. Each PRU-ICSS contains two PRU cores and several peripherals, including the Interrupt Controller, IEP, MII_RT, MDIO, and eCAP. This patch also adds the IEP and eCAP child nodes for PRU-ICSS1, making its layout consistent with PRU-ICSS2. am57-pruss.dtsi: Adds the IEP and eCAP child nodes for PRU-ICSS1. am571x-idk.dts: Adds the PRU-ICSS1 DUAL-MAC Ethernet node, enables the PRU-ICSS1 MDIO bus, adds the two external PHYs, and configures the required pin multiplexing and interrupts. Signed-off-by: Roger Quadros Signed-off-by: Andrew F. Davis Signed-off-by: Murali Karicheri Signed-off-by: Parvathi Pudi --- arch/arm/boot/dts/ti/omap/am57-pruss.dtsi | 11 ++++ arch/arm/boot/dts/ti/omap/am571x-idk.dts | 65 ++++++++++++++++++++++- 2 files changed, 75 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/ti/omap/am57-pruss.dtsi b/arch/arm/boot/dts/= ti/omap/am57-pruss.dtsi index f73316625608..1579f284cb6e 100644 --- a/arch/arm/boot/dts/ti/omap/am57-pruss.dtsi +++ b/arch/arm/boot/dts/ti/omap/am57-pruss.dtsi @@ -61,6 +61,17 @@ pruss1_iepclk_mux: iepclk-mux@30 { }; }; =20 + pruss1_iep: iep@2e000 { + compatible =3D "ti,am5728-icss-iep"; + reg =3D <0x2e000 0x31c>; + clocks =3D <&pruss1_iepclk_mux>; + }; + + pruss1_ecap: ecap@30000 { + compatible =3D "ti,pruss-ecap"; + reg =3D <0x30000 0x60>; + }; + pruss1_mii_rt: mii-rt@32000 { compatible =3D "ti,pruss-mii", "syscon"; reg =3D <0x32000 0x58>; diff --git a/arch/arm/boot/dts/ti/omap/am571x-idk.dts b/arch/arm/boot/dts/t= i/omap/am571x-idk.dts index 02653b440585..e74c154b1940 100644 --- a/arch/arm/boot/dts/ti/omap/am571x-idk.dts +++ b/arch/arm/boot/dts/ti/omap/am571x-idk.dts @@ -165,6 +165,53 @@ blue3-led { default-state =3D "off"; }; }; + + /* Dual mac ethernet application node on icss1 */ + pruss1-eth { + compatible =3D "ti,am57-prueth"; + ti,prus =3D <&pru1_0>, <&pru1_1>; + ti,pruss-gp-mux-sel =3D <0>, /* GP, default */ + <4>; /* MII2, for PRUSS1_MII1 */ + sram =3D <&ocmcram1>; + ti,mii-rt =3D <&pruss1_mii_rt>; + ti,iep =3D <&pruss1_iep>; + ti,ecap =3D <&pruss1_ecap>; + interrupts =3D <20 2 2>, <21 3 3>; + interrupt-names =3D "rx_hp", "rx_lp"; + interrupt-parent =3D <&pruss1_intc>; + + ethernet-ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + pruss1_emac0: ethernet-port@0 { + reg =3D <0>; + phy-handle =3D <&pruss1_eth0_phy>; + phy-mode =3D "mii"; + interrupts =3D <20 2 2>, <26 6 6>, <23 6 6>; + interrupt-names =3D "rx", "emac_ptp_tx", + "hsr_ptp_tx"; + /* Filled in by bootloader */ + local-mac-address =3D [00 00 00 00 00 00]; + }; + + pruss1_emac1: ethernet-port@1 { + reg =3D <1>; + phy-handle =3D <&pruss1_eth1_phy>; + phy-mode =3D "mii"; + interrupts =3D <21 3 3>, <27 9 7>, <24 9 7>; + interrupt-names =3D "rx", "emac_ptp_tx", + "hsr_ptp_tx"; + /* Filled in by bootloader */ + local-mac-address =3D [00 00 00 00 00 00]; + }; + }; + }; +}; + +&pruss1_iep { + interrupt-parent =3D <&pruss1_intc>; + interrupts =3D <7 7 8>; + interrupt-names =3D "iep_cap_cmp"; }; =20 &extcon_usb2 { @@ -210,7 +257,23 @@ &mmc2 { }; =20 &pruss1_mdio { - status =3D "disabled"; + status =3D "okay"; + reset-gpios =3D <&gpio5 8 GPIO_ACTIVE_LOW>; + reset-delay-us =3D <2>; /* PHY datasheet states 1uS min */ + #address-cells =3D <1>; + #size-cells =3D <0>; + + pruss1_eth0_phy: ethernet-phy@0 { + reg =3D <0>; + interrupt-parent =3D <&gpio3>; + interrupts =3D <28 IRQ_TYPE_LEVEL_LOW>; + }; + + pruss1_eth1_phy: ethernet-phy@1 { + reg =3D <1>; + interrupt-parent =3D <&gpio3>; + interrupts =3D <29 IRQ_TYPE_LEVEL_LOW>; + }; }; =20 &pruss2_mdio { --=20 2.43.0