From: Alexander Stein <alexander.stein@ew.tq-group.com>
To: Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Peter Chen <peter.chen@kernel.org>,
Pawel Laszczak <pawell@cadence.com>,
Roger Quadros <rogerq@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Magnus Damm <magnus.damm@gmail.com>, Marek Vasut <marex@denx.de>,
Frank Li <Frank.Li@nxp.com>
Cc: Alexander Stein <alexander.stein@ew.tq-group.com>,
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 [thread overview]
Message-ID: <20260211124154.1080135-1-alexander.stein@ew.tq-group.com> (raw)
In-Reply-To: <20260211123436.1077513-1-alexander.stein@ew.tq-group.com>
Due to missing workaround for "ERR050104: Arm/A53: Cache coherency issue"
disable the whole Cortex-A72 cluster.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
---
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
prev parent reply other threads:[~2026-02-11 12:43 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-11 12:34 [PATCH v2 0/5] Support TQMa8QM Alexander Stein
2026-02-11 12:34 ` [PATCH v2 1/5] dt-bindings: usb: cdns,usb3: support USB devices in DT Alexander Stein
2026-02-23 17:30 ` Rob Herring (Arm)
2026-02-24 2:39 ` Xu Yang
2026-02-11 12:34 ` [PATCH v2 2/5] arm64: dts: imx8qm-ss-hsio: Wire up DMA IRQ for PCIe Alexander Stein
2026-02-11 12:34 ` [PATCH v2 3/5] dt-bindings: arm: fsl: add bindings for TQMa8x Alexander Stein
2026-02-11 12:34 ` [PATCH v2 4/5] arm64: dts: freescale: add initial device tree " Alexander Stein
2026-02-11 12:43 ` Marc Kleine-Budde
2026-02-11 13:06 ` Alexander Stein
2026-02-11 12:41 ` Alexander Stein [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260211124154.1080135-1-alexander.stein@ew.tq-group.com \
--to=alexander.stein@ew.tq-group.com \
--cc=Frank.Li@nxp.com \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=festevam@gmail.com \
--cc=geert+renesas@glider.be \
--cc=gregkh@linuxfoundation.org \
--cc=imx@lists.linux.dev \
--cc=kernel@pengutronix.de \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-renesas-soc@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=linux@ew.tq-group.com \
--cc=magnus.damm@gmail.com \
--cc=marex@denx.de \
--cc=mturquette@baylibre.com \
--cc=pawell@cadence.com \
--cc=peter.chen@kernel.org \
--cc=robh@kernel.org \
--cc=rogerq@kernel.org \
--cc=s.hauer@pengutronix.de \
--cc=sboyd@kernel.org \
--cc=shawnguo@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox