linux-kernel - [PATCH v3 1/4] arm64: dts: exynos: gs101: add SRAM node

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Message-Id: <20241220-gs101-acpm-dt-v3-1-642d64daa5d1@linaro.org>
Date: Fri, 20 Dec 2024 14:45:44 +0000
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Peter Griffin <peter.griffin@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-samsung-soc@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 andre.draszik@...aro.org, kernel-team@...roid.com, willmcvicker@...gle.com, 
 peter.griffin@...aro.org, daniel.lezcano@...aro.org, 
 vincent.guittot@...aro.org, ulf.hansson@...aro.org, arnd@...db.de, 
 Jassi Brar <jassisinghbrar@...il.com>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>
Subject: [PATCH v3 1/4] arm64: dts: exynos: gs101: add SRAM node

SRAM is used by the ACPM protocol to retrieve the ACPM channels
information, which includes the TX/RX rings among other channel
configuration data. Add the SRAM node.

Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
---
 arch/arm64/boot/dts/exynos/google/gs101.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/google/gs101.dtsi b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
index 302c5beb224a..1441e9a252c2 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101.dtsi
@@ -269,6 +269,14 @@ bldr_log_hist_reserved: bldr-log-hist-reserved@...00000 {
 		};
 	};
 
+	apm_sram: sram@...9000 {
+		compatible = "mmio-sram";
+		reg = <0x0 0x2039000 0x40000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x0 0x2039000 0x40000>;
+	};
+
 	soc: soc@0 {
 		compatible = "simple-bus";
 		#address-cells = <1>;

-- 
2.47.1.613.gc27f4b7a9f-goog