linux-kernel - [PATCH] arm64: dts: qcom: qdu1000: Add LLCC/system-cache-controller node

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Date:   Mon, 13 Mar 2023 12:47:57 +0530
From:   Komal Bajaj <quic_kbajaj@...cinc.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Komal Bajaj <quic_kbajaj@...cinc.com>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: qcom: qdu1000: Add LLCC/system-cache-controller node

Add a DT node for Last level cache (aka. system cache) controller
which provides control over the last level cache present on QDU1000
and QRU1000 SoCs.

Signed-off-by: Komal Bajaj <quic_kbajaj@...cinc.com>
---
 arch/arm64/boot/dts/qcom/qdu1000.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qdu1000.dtsi b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
index 801f090335a3..a4816a862344 100644
--- a/arch/arm64/boot/dts/qcom/qdu1000.dtsi
+++ b/arch/arm64/boot/dts/qcom/qdu1000.dtsi
@@ -1321,6 +1321,16 @@ gem_noc: interconnect@...00000 {
 			qcom,bcm-voters = <&apps_bcm_voter>;
 			#interconnect-cells = <2>;
 		};
+
+		system-cache-controller@...00000 {
+			compatible = "qcom,qdu1000-llcc";
+			reg = <0 0x19200000 0 0xd80000>,
+			      <0 0x1a200000 0 0x80000>,
+			      <0 0x221c8128 0 0x4>;
+			reg-names = "llcc_base", "llcc_broadcast_base", "multi_channel_register";
+			multi-ch-bit-off = <24 2>;
+			interrupts = <GIC_SPI 266 IRQ_TYPE_LEVEL_HIGH>;
+		};
 	};
 
 	arch_timer: timer {
-- 
2.39.1