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Wed, 11 Feb 2026 13:41:56 +0100 (CET) From: Alexander Stein To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Michael Turquette , Stephen Boyd , Peter Chen , Pawel Laszczak , Roger Quadros , Greg Kroah-Hartman , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Magnus Damm , Marek Vasut , Frank Li Cc: Alexander Stein , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-clk@vger.kernel.org, linux-usb@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux@ew.tq-group.com Subject: [PATCH v2 5/5] arm64: dts: imx8qm-tqma8qm-mba8x: Disable Cortex-A72 cluster Date: Wed, 11 Feb 2026 13:41:53 +0100 Message-ID: <20260211124154.1080135-1-alexander.stein@ew.tq-group.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260211123436.1077513-1-alexander.stein@ew.tq-group.com> References: <20260211123436.1077513-1-alexander.stein@ew.tq-group.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-cloud-security-sender:alexander.stein@ew.tq-group.com X-cloud-security-recipient:linux-kernel@vger.kernel.org X-cloud-security-crypt: load encryption module X-cloud-security-Mailarchiv: E-Mail archived for: alexander.stein@ew.tq-group.com X-cloud-security-Mailarchivtype:outbound X-cloud-security-Virusscan:CLEAN X-cloud-security-disclaimer: This E-Mail was scanned by E-Mailservice on mx-relay24-hz1.antispameurope.com with 4f9yjx5Qnhz2ff2J X-cloud-security-connect: he-nlb01-hz1.hornetsecurity.com[94.100.132.6], TLS=1, IP=94.100.132.6 X-cloud-security-Digest:ebb129c93538d71a139afec21e2b08e4 X-cloud-security:scantime:1.798 DKIM-Signature: a=rsa-sha256; bh=6py1FlyDVN3cYWCSXt10KIIllpLulnoSlCJdgJBjOeY=; c=relaxed/relaxed; d=ew.tq-group.com; h=content-type:mime-version:subject:from:to:message-id:date; s=hse1; t=1770813743; v=1; b=S+6DBMDw9PqxtKtQKzySJJj83RCyG94z7LRCJ9kXA3Ru5SXp0E9QWQkekFcoEdrziFPwZSh7 HT7iulNBWY+6miv8KfGx/I/l5T3OlSAQMzb+Wdmsv/DkHi5QM3m0sSm9luxBpC14SSGqOrJO+H0 E5vKphzFuhLhkE/ghRJ0krYEE8azF02xz/siyeFpvmWI1/2WALao1xRj90XOgygUN1d38Bykhdh 0XrT1RKyr+Ra9005N8NkqN81bQyP2AnqIfd3WtV9zWQvekA+crE8dnM4HMh6V2KWoKr5nlugABI ficddo1mf6G2JjQGp8BnzwpTk7n0TWKXHk61gcMAkwFTw== Due to missing workaround for "ERR050104: Arm/A53: Cache coherency issue" disable the whole Cortex-A72 cluster. Signed-off-by: Alexander Stein --- Changes in v2: * None .../dts/freescale/imx8qm-tqma8qm-mba8x.dts | 39 ------------------- .../boot/dts/freescale/imx8qm-tqma8qm.dtsi | 13 +++++-- 2 files changed, 10 insertions(+), 42 deletions(-) diff --git a/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm-mba8x.dts b/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm-mba8x.dts index ce5a4657c4230..25274cc76fc56 100644 --- a/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm-mba8x.dts +++ b/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm-mba8x.dts @@ -297,45 +297,6 @@ map3 { }; }; }; - - cpu1-thermal { - trips { - soc_active1_0: trip-active0 { - temperature = <40000>; - hysteresis = <5000>; - type = "active"; - }; - - soc_active1_1: trip-active1 { - temperature = <48000>; - hysteresis = <3000>; - type = "active"; - }; - - soc_active1_2: trip-active2 { - temperature = <60000>; - hysteresis = <10000>; - type = "active"; - }; - }; - - cooling-maps { - map1 { - trip = <&soc_active1_0>; - cooling-device = <&fan0 1 1>; - }; - - map2 { - trip = <&soc_active1_1>; - cooling-device = <&fan0 2 2>; - }; - - map3 { - trip = <&soc_active1_2>; - cooling-device = <&fan0 3 3>; - }; - }; - }; }; }; diff --git a/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi b/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi index d94605c999915..f0e398eb2aad7 100644 --- a/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi @@ -15,6 +15,13 @@ / { model = "TQ-Systems i.MX8QM TQMa8QM"; compatible = "tq,imx8qm-tqma8qm", "fsl,imx8qm"; + /* Due to missing workaround for ERR050104 */ + cpus { + /delete-node/ cpu-map; + /delete-node/ cpu@100; + /delete-node/ cpu@101; + }; + memory@80000000 { device_type = "memory"; /* @@ -174,6 +181,8 @@ &mu2_m0 { }; &thermal_zones { + /delete-node/ cpu1-thermal; + pmic0-thermal { polling-delay-passive = <250>; polling-delay = <2000>; @@ -199,9 +208,7 @@ map0 { <&A53_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, <&A53_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, <&A53_2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&A72_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>, - <&A72_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + <&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; }; }; }; -- 2.43.0