From mboxrd@z Thu Jan 1 00:00:00 1970 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 9D170CFD318 for ; Mon, 24 Nov 2025 17:10:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=FjELbD1gWRjpQBsqfo+fckd8h4RPqZ7n7+l68bVnpr4=; b=J8kxdbdvkHuMLwVZqhAM/Z82JN nSrtO18hJXQ42y8KEBHtwyaUQd4yNzE+egYRPjnhvhAONBaIoU0+m1tZqY3yHbW3W6CMZTw0h3w3G E9/eFIRfepq9gmsYQa/1Vshhdap0WkEGp8xINNrKffh+htEYqm2+TFI3gLUev4RJmvXXNcFV/kNW6 6GXGQtPeEfl/O/GwyZUFgV5LriEcfn6Rf42nC1dFtMLW6w/QGC2uNJESk4zEKuVEQUXQGKlIoYqxy 9S5UVj/zxaAiNfVojvJjUkR8YywsrK+iStU/l4B7ckI/FlavYXIWCmGjg2wLf3KTnzNZBvyZ7ijWG lkfSHADw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vNa4y-0000000C4vJ-39k1; Mon, 24 Nov 2025 17:10:20 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vNa4w-0000000C4uv-2zmM for linux-arm-kernel@lists.infradead.org; Mon, 24 Nov 2025 17:10:20 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id B34401477; Mon, 24 Nov 2025 09:10:08 -0800 (PST) Received: from [10.1.200.38] (e119884-lin.cambridge.arm.com [10.1.200.38]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 60F883F73B; Mon, 24 Nov 2025 09:10:15 -0800 (PST) Message-ID: <4c5d3da8-424e-4529-b5f4-4ad1f5f3810b@arm.com> Date: Mon, 24 Nov 2025 17:10:13 +0000 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] arm64: dts: morello: Add CMN PMU To: Robin Murphy , liviu.dudau@arm.com, sudeep.holla@arm.com, lpieralisi@kernel.org Cc: linux-arm-kernel@lists.infradead.org References: Content-Language: en-US From: Vincenzo Frascino In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251124_091018_817126_AB8DA14D X-CRM114-Status: GOOD ( 13.67 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 27/05/2025 13:55, Robin Murphy wrote: > Although CMN-Skeena is mildly modified for the Morello hardware > architecture, it still identifies itself as CMN-600 r3p1. Since > there are also no documented changes to its PMU functionality, > we can make the PMU accessible via the standard CMN-600 binding. > In general, PMU registers are non-functional on CMN Fast Models, > so this is only meaningful for the real SDP hardware. > > Signed-off-by: Robin Murphy Fine by me. Acked-by: Vincenzo Frascino > --- > arch/arm64/boot/dts/arm/morello-sdp.dts | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm64/boot/dts/arm/morello-sdp.dts b/arch/arm64/boot/dts/arm/morello-sdp.dts > index cee49dee7571..42c85f450fa9 100644 > --- a/arch/arm64/boot/dts/arm/morello-sdp.dts > +++ b/arch/arm64/boot/dts/arm/morello-sdp.dts > @@ -108,6 +108,13 @@ smmu_pcie: iommu@4f400000 { > dma-coherent; > }; > > + pmu@50000000 { > + compatible = "arm,cmn-600"; > + reg = <0x0 0x50000000 0x0 0x4000000>; > + interrupts = ; > + arm,root-node = <0x804000>; > + }; > + > pcie_ctlr: pcie@28c0000000 { > device_type = "pci"; > compatible = "pci-host-ecam-generic"; -- Regards, Vincenzo