linux-kernel - [PATCH V4 10/11] arm64: dts: qcom: sc7180: Add a carveout for modem metadata

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Date:   Tue, 17 Jan 2023 14:28:39 +0530
From:   Sibi Sankar <quic_sibis@...cinc.com>
To:     <andersson@...nel.org>, <manivannan.sadhasivam@...aro.org>
CC:     <agross@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <robh+dt@...nel.org>,
        <konrad.dybcio@...ainline.org>, <amit.pundir@...aro.org>,
        <regressions@...mhuis.info>, <sumit.semwal@...aro.org>,
        <will@...nel.org>, <catalin.marinas@....com>,
        <robin.murphy@....com>, Sibi Sankar <quic_sibis@...cinc.com>
Subject: [PATCH V4 10/11] arm64: dts: qcom: sc7180: Add a carveout for modem metadata

Add a new carveout for modem metadata on SC7180 SoCs.

Signed-off-by: Sibi Sankar <quic_sibis@...cinc.com>
---

v4:
 * Use size/alloc-ranges instead of a specific address [Bjorn]

v2:
 * Split dt/bindings per SoC [Krzysztof]

 arch/arm64/boot/dts/qcom/sc7180-idp.dts      | 8 +++++++-
 arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 8 +++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-idp.dts b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
index c7a22c7976b7..774f9d45f051 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-idp.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-idp.dts
@@ -80,6 +80,12 @@
 			reg = <0x0 0x94400000 0x0 0x200000>;
 			no-map;
 		};
+
+		mdata_mem: mpss-metadata {
+			alloc-ranges = <0x0 0xa0000000 0x0 0x20000000>;
+			size = <0x0 0x4000>;
+			no-map;
+		};
 	};
 };
 
@@ -382,7 +388,7 @@
 	clock-names = "iface", "bus", "nav", "snoc_axi", "mnoc_axi", "xo";
 
 	iommus = <&apps_smmu 0x461 0x0>, <&apps_smmu 0x444 0x3>;
-	memory-region = <&mba_mem &mpss_mem>;
+	memory-region = <&mba_mem>, <&mpss_mem>, <&mdata_mem>;
 
 	resets = <&aoss_reset AOSS_CC_MSS_RESTART>,
 		 <&pdc_reset PDC_MODEM_SYNC_RESET>;
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
index edb56c4d55a2..0dc65cfeba07 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi
@@ -81,6 +81,12 @@
 			reg = <0x0 0x94400000 0x0 0x200000>;
 			no-map;
 		};
+
+		mdata_mem: mpss-metadata {
+			alloc-ranges = <0x0 0xa0000000 0x0 0x20000000>;
+			size = <0x0 0x4000>;
+			no-map;
+		};
 	};
 
 	aliases {
@@ -865,7 +871,7 @@ hp_i2c: &i2c9 {
 	clock-names = "iface", "bus", "nav", "snoc_axi", "mnoc_axi", "xo";
 
 	iommus = <&apps_smmu 0x461 0x0>, <&apps_smmu 0x444 0x3>;
-	memory-region = <&mba_mem &mpss_mem>;
+	memory-region = <&mba_mem>, <&mpss_mem>, <&mdata_mem>;
 
 	/* This gets overridden for SKUs with LTE support. */
 	firmware-name = "qcom/sc7180-trogdor/modem-nolte/mba.mbn",
-- 
2.17.1