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From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Konrad Dybcio <konrad.dybcio@somainline.org>,
        Georgi Djakov <djakov@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Cc:     Rajendra Nayak <quic_rjendra@quicinc.com>,
        Sibi Sankar <quic_sibis@quicinc.com>,
        Steev Klimaszewski <steev@kali.org>
Subject: [PATCH v2 10/11] arm64: dts: qcom: sdm845: narrow LLCC address space
Date:   Thu, 28 Jul 2022 13:37:47 +0200
Message-Id: <20220728113748.170548-11-krzysztof.kozlowski@linaro.org>
In-Reply-To: <20220728113748.170548-1-krzysztof.kozlowski@linaro.org>
References: <20220728113748.170548-1-krzysztof.kozlowski@linaro.org>
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The Last Level Cache Controller (LLCC) device does not need to access
entire LLCC address space.  Currently driver uses only hardware info and
status registers which both reside in LLCC0_COMMON range (offset
0x30000, size 0x1000).  Narrow the address space to allow binding other
drivers to rest of LLCC address space.

Cc: Rajendra Nayak <quic_rjendra@quicinc.com>
Cc: Sibi Sankar <quic_sibis@quicinc.com>
Reported-by: Steev Klimaszewski <steev@kali.org>
Suggested-by: Sibi Sankar <quic_sibis@quicinc.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index fe14f7e7523b..e318c3f8aee0 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2048,7 +2048,7 @@ uart15: serial@a9c000 {
 
 		llcc: system-cache-controller@1100000 {
 			compatible = "qcom,sdm845-llcc";
-			reg = <0 0x01100000 0 0x200000>, <0 0x01300000 0 0x50000>;
+			reg = <0 0x01100000 0 0x31000>, <0 0x01300000 0 0x50000>;
 			reg-names = "llcc_base", "llcc_broadcast_base";
 			interrupts = <GIC_SPI 582 IRQ_TYPE_LEVEL_HIGH>;
 		};
-- 
2.34.1