linux-kernel - [PATCH v2 06/16] arm64: dts: st: add LPDDR channel to stm32mp257f-dk board

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Message-ID: <20250711-ddrperfm-upstream-v2-6-cdece720348f@foss.st.com>
Date: Fri, 11 Jul 2025 16:48:58 +0200
From: Clément Le Goffic <clement.legoffic@...s.st.com>
To: Will Deacon <will@...nel.org>, Mark Rutland <mark.rutland@....com>,
        Rob
 Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor
 Dooley <conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Philipp Zabel
	<p.zabel@...gutronix.de>,
        Jonathan Corbet <corbet@....net>,
        Gatien Chevallier
	<gatien.chevallier@...s.st.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Gabriel Fernandez
	<gabriel.fernandez@...s.st.com>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Le
 Goffic <legoffic.clement@...il.com>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-perf-users@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>,
        <linux-clk@...r.kernel.org>,
        Clément Le Goffic <clement.legoffic@...s.st.com>
Subject: [PATCH v2 06/16] arm64: dts: st: add LPDDR channel to
 stm32mp257f-dk board

Add 32bits LPDDR4 channel to the stm32mp257f-dk board.

Signed-off-by: Clément Le Goffic <clement.legoffic@...s.st.com>
---
 arch/arm64/boot/dts/st/stm32mp257f-dk.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
index a278a1e3ce03..a97b41f14ecc 100644
--- a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
+++ b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts
@@ -54,6 +54,13 @@ led-blue {
 		};
 	};
 
+	lpddr_channel: lpddr4-channel {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "jedec,lpddr4-channel";
+		io-width = <32>;
+	};
+
 	memory@...00000 {
 		device_type = "memory";
 		reg = <0x0 0x80000000 0x1 0x0>;

-- 
2.43.0