Thread (28 messages) 28 messages, 5 authors, 2025-07-02
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[PATCH 13/13] arm64: dts: st: support ddrperfm on stm32mp257f-ev1

From: Clément Le Goffic <hidden>
Date: 2025-06-23 09:30:10
Also in: linux-arm-kernel, linux-clk, linux-doc, linux-perf-users, lkml
Subsystem: arm/stm32 architecture, the rest · Maintainers: Maxime Coquelin, Alexandre Torgue, Linus Torvalds

Configure DDRPERFM node on stm32mp257f-ev1 board.
Disable the node as DDRPERFM will produce an error message if it's clock
(shared with the DDRCTRL on STM32MP25x) is secured by common bootloaders.

Signed-off-by: Clément Le Goffic <redacted>
---
 arch/arm64/boot/dts/st/stm32mp257f-ev1.dts | 5 +++++
 1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
index 2f561ad40665..a48fb7b33198 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-ev1.dts
@@ -123,6 +123,11 @@ csi_source: endpoint {
 	};
 };
 
+&ddrperfm {
+	st,dram-type = <2>;
+	status = "disabled";
+};
+
 &dcmipp {
 	status = "okay";
 	port {
-- 
2.43.0
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