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From: Unnathi Chalicheemala <quic_uchalich@quicinc.com>
To: Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Rob Herring <robh@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>
Cc: Unnathi Chalicheemala <quic_uchalich@quicinc.com>,
        linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, kernel@quicinc.com
Subject: [PATCH v5 4/5] arm64: dts: qcom: sm8550: Add Broadcast_AND register in LLCC block
Date: Mon, 20 May 2024 14:00:16 -0700
Message-Id: <e34eff8d5c61e95dcc974837527a96cf05da0d65.1716228054.git.quic_uchalich@quicinc.com>
In-Reply-To: <cover.1716228054.git.quic_uchalich@quicinc.com>
References: <cover.1716228054.git.quic_uchalich@quicinc.com>
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Chipsets before SM8450 have only one broadcast register (Broadcast_OR)
which is used to broadcast writes and check for status bit 0 only in
all channels.
From SM8450 onwards, a new Broadcast_AND region was added
which checks for status bit 1. This hasn't been updated and Broadcast_OR
region was wrongly being used to check for status bit 1 all along.
Hence mapping Broadcast_AND region's address space to LLCC in SM8550.

Signed-off-by: Unnathi Chalicheemala <quic_uchalich@quicinc.com>
---
 arch/arm64/boot/dts/qcom/sm8550.dtsi | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8550.dtsi b/arch/arm64/boot/dts/qcom/sm8550.dtsi
index 3904348075f6..ee387e6f9832 100644
--- a/arch/arm64/boot/dts/qcom/sm8550.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8550.dtsi
@@ -4263,12 +4263,14 @@ system-cache-controller@25000000 {
 			      <0 0x25200000 0 0x200000>,
 			      <0 0x25400000 0 0x200000>,
 			      <0 0x25600000 0 0x200000>,
-			      <0 0x25800000 0 0x200000>;
+			      <0 0x25800000 0 0x200000>,
+			      <0 0x25a00000 0 0x200000>;
 			reg-names = "llcc0_base",
 				    "llcc1_base",
 				    "llcc2_base",
 				    "llcc3_base",
-				    "llcc_broadcast_base";
+				    "llcc_broadcast_base",
+				    "llcc_broadcast_and_base";
 			interrupts = <GIC_SPI 266 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
-- 
2.34.1