linux-kernel - [PATCH v2 1/2] arm64: dts: ti: iot2050: Disable lock-step for all iot2050 boards

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Message-ID: <d1f5f84db7a1597cd29628a0b503e578367b7b40.1724830741.git.jan.kiszka@siemens.com>
Date: Wed, 28 Aug 2024 09:39:00 +0200
From: Jan Kiszka <jan.kiszka@...mens.com>
To: Nishanth Menon <nm@...com>,
	Vignesh Raghavendra <vigneshr@...com>,
	Tero Kristo <kristo@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Bao Cheng Su <baocheng.su@...mens.com>,
	Hua Qian Li <huaqian.li@...mens.com>
Subject: [PATCH v2 1/2] arm64: dts: ti: iot2050: Disable lock-step for all iot2050 boards

From: Li Hua Qian <huaqian.li@...mens.com>

The PG1 A variant of the iot2050 series has been identified which
partially lacks support for lock-step mode. This implies that all
iot2050 boards can't support this mode. As a result, lock-step mode has
been disabled across all iot2050 boards for consistency and to avoid
potential issues.

Signed-off-by: Li Hua Qian <huaqian.li@...mens.com>
Signed-off-by: Jan Kiszka <jan.kiszka@...mens.com>
---
 arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi | 5 -----
 arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi     | 5 +++++
 arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic.dts     | 5 -----
 3 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi
index e2584a5efe34..b3c4c0eec3dc 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg2.dtsi
@@ -9,11 +9,6 @@
  * Common bits of the IOT2050 Basic and Advanced variants, PG2
  */
 
-&mcu_r5fss0 {
-	/* lock-step mode not supported on PG2 boards */
-	ti,cluster-mode = <0>;
-};
-
 &main_pmx0 {
 	cp2102n_reset_pin_default: cp2102n-reset-default-pins {
 		pinctrl-single,pins = <
diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index ef34b851e178..e76828ccf21b 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -635,3 +635,8 @@ icssg0_eth1_phy: ethernet-phy@1 {
 		ti,fifo-depth = <DP83867_PHYCR_FIFO_DEPTH_4_B_NIB>;
 	};
 };
+
+&mcu_r5fss0 {
+	/* lock-step mode not supported on iot2050 boards */
+	ti,cluster-mode = <0>;
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic.dts b/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic.dts
index 29a31891b3db..4968a47f31ea 100644
--- a/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic.dts
+++ b/arch/arm64/boot/dts/ti/k3-am6528-iot2050-basic.dts
@@ -22,8 +22,3 @@ / {
 	compatible = "siemens,iot2050-basic", "ti,am654";
 	model = "SIMATIC IOT2050 Basic";
 };
-
-&mcu_r5fss0 {
-	/* lock-step mode not supported on this board */
-	ti,cluster-mode = <0>;
-};
-- 
2.43.0