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Mon, 10 Aug 2026 08:30:02 -0700 (PDT) Received: from deb05.proceq.com ([213.160.61.66]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-480020be8f3sm33917464f8f.0.2026.08.10.08.30.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Aug 2026 08:30:02 -0700 (PDT) From: Mehmet Fide To: Shawn Guo , Sascha Hauer , Stefan Agner Cc: Pengutronix Kernel Team , Fabio Estevam , Francesco Dolcini , linux-arm-kernel@lists.infradead.org, imx@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH] ARM: dts: vf610: describe the L2 cache geometry Date: Mon, 10 Aug 2026 17:30:01 +0200 Message-ID: <20260810153001.3236085-1-mehmet.fide@gmail.com> X-Mailer: git-send-email 2.54.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260810_083004_915080_884BA507 X-CRM114-Status: GOOD ( 10.52 ) 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 From: Mehmet Fide The L2 node names the controller and its level, but not its size, line size or set count, so cacheinfo cannot describe the last level of the hierarchy even though the cpu node already points at it. Fill them in from the Vybrid reference manual (NXP VFXXXRM), section 3.2.3: 8 way set associative, 512 KB, 32 byte line, so 2048 sets. Not tested on VF610 silicon, the values come from the manual. The matching change for the L1 caches was tested on a VF500. Signed-off-by: Mehmet Fide --- arch/arm/boot/dts/nxp/vf/vf610.dtsi | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/boot/dts/nxp/vf/vf610.dtsi b/arch/arm/boot/dts/nxp/vf/vf610.dtsi index 2fba923..ea59e3d 100644 --- a/arch/arm/boot/dts/nxp/vf/vf610.dtsi +++ b/arch/arm/boot/dts/nxp/vf/vf610.dtsi @@ -14,6 +14,9 @@ reg = <0x40006000 0x1000>; cache-unified; cache-level = <2>; + cache-line-size = <32>; + cache-sets = <2048>; + cache-size = <0x80000>; arm,data-latency = <3 3 3>; arm,tag-latency = <2 2 2>; }; -- 2.54.0