[PATCH v2 2/2] Revert "arm64: dts: imx8qm-tqma8qm-mba8x: Disable Cortex-A72 cluster"

["Peng Fan (OSS)" <peng.fan@oss.nxp.com>]

From: Peng Fan <peng.fan@nxp.com>

The ERR050104 cache coherency workaround for i.MX8QM/8QP has been
merged upstream (d44e08dab27d). The workaround addresses the incorrect
wiring of upper address bits in the A53 subsystem that corrupts TLBI
and IC maintenance operations between A53 and A72 clusters.

With the software workaround in place, the DT-level workaround applied
by commit 5d20f1ccb339 ("arm64: dts: imx8qm-tqma8qm-mba8x: Disable
Cortex-A72 cluster") is no longer needed.

This reverts commit 5d20f1ccb339.

Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
 .../boot/dts/freescale/imx8qm-tqma8qm-mba8x.dts    | 39 ++++++++++++++++++++++
 arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi  | 13 ++------
 2 files changed, 42 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm-mba8x.dts b/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm-mba8x.dts
index ab3b244b684fd..bf972010a88e7 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm-mba8x.dts
+++ b/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm-mba8x.dts
@@ -298,6 +298,45 @@ 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 f0e398eb2aad7..d94605c999915 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8qm-tqma8qm.dtsi
@@ -15,13 +15,6 @@ / {
 	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";
 		/*
@@ -181,8 +174,6 @@ &mu2_m0 {
 };
 
 &thermal_zones {
-	/delete-node/ cpu1-thermal;
-
 	pmic0-thermal {
 		polling-delay-passive = <250>;
 		polling-delay = <2000>;
@@ -208,7 +199,9 @@ 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>;
+					<&A53_3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+					<&A72_0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+					<&A72_1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
 			};
 		};
 	};

-- 
2.34.1