[PATCH v3 18/19] arm64: dts: st: support ddrperfm on stm32mp257f-dk

Configure DDRPERFM node on stm32mp257f-dk 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-dk.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
index a97b41f14ecc..d236ebf2bb10 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts

@@ -84,6 +84,11 @@ &arm_wdt {
 	status = "okay";
 };
 
+&ddrperfm {
+	memory-channel = <&lpddr_channel>;
+	status = "disabled";
+};
+
 &scmi_regu {
 	scmi_vddio1: regulator@0 {
 		regulator-min-microvolt = <1800000>;

-- 
2.43.0