linux-kernel - [PATCH 04/10] arm64: dts: qcom: sc7180: Explicitly describe the IPA IMEM slice

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Message-Id: <20250523-topic-ipa_mem_dts-v1-4-f7aa94fac1ab@oss.qualcomm.com>
Date: Fri, 23 May 2025 01:18:19 +0200
From: Konrad Dybcio <konradybcio@...nel.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, cros-qcom-dts-watchers@...omium.org, 
 Sai Prakash Ranjan <quic_saipraka@...cinc.com>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>, 
 linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH 04/10] arm64: dts: qcom: sc7180: Explicitly describe the
 IPA IMEM slice

From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

As part of stepping away from crazy hardcoding in the driver, move
define the slice explicitly and pass it to the IPA node.

Signed-off-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sc7180.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180.dtsi b/arch/arm64/boot/dts/qcom/sc7180.dtsi
index 3afb69921be363bd35a996bc1d6f70ff007c6af8..84b032dc09d36e56eeaf182125cceb44e7333765 100644
--- a/arch/arm64/boot/dts/qcom/sc7180.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180.dtsi
@@ -1640,6 +1640,8 @@ ipa: ipa@...0000 {
 			qcom,smem-state-names = "ipa-clock-enabled-valid",
 						"ipa-clock-enabled";
 
+			sram = <&ipa_modem_tables>;
+
 			status = "disabled";
 		};
 
@@ -3535,6 +3537,10 @@ sram@...80000 {
 
 			ranges = <0 0 0x14680000 0x2e000>;
 
+			ipa_modem_tables: modem-tables@...00 {
+				reg = <0x28000 0x2000>;
+			};
+
 			pil-reloc@...4c {
 				compatible = "qcom,pil-reloc-info";
 				reg = <0x2a94c 0xc8>;

-- 
2.49.0