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From: Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>
To: Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Sibi Sankar <sibi.sankar@oss.qualcomm.com>,
	Pankaj Patil <pankaj.patil@oss.qualcomm.com>
Cc: Rajendra Nayak <rajendra.nayak@oss.qualcomm.com>,
	linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>
Subject: [PATCH 2/5] arm64: dts: qcom: Add Kalambo SoC
Date: Sat, 18 Jul 2026 05:06:22 -0700	[thread overview]
Message-ID: <20260718-b4-kalambo-crd-v1-2-a1069b5a2757@oss.qualcomm.com> (raw)
In-Reply-To: <20260718-b4-kalambo-crd-v1-0-a1069b5a2757@oss.qualcomm.com>

Introduce support for the Qualcomm Kalambo SoC. It is derived from Mahua
with CPU cluster 0 removed, leaving it with just cluster 1. As a result,
the PDP mailbox and SCP low-priority register windows are updated to
match the reduced CPU complex. Everything else should work as-is.

Add a label to the Glymur cluster0 cpu-map node to allow its removal on
derived SoCs.

Signed-off-by: Gopikrishna Garmidi <gopikrishna.garmidi@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/glymur.dtsi  |  2 +-
 arch/arm64/boot/dts/qcom/kalambo.dtsi | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/glymur.dtsi b/arch/arm64/boot/dts/qcom/glymur.dtsi
index 55d91c696a3a..f2feef362be5 100644
--- a/arch/arm64/boot/dts/qcom/glymur.dtsi
+++ b/arch/arm64/boot/dts/qcom/glymur.dtsi
@@ -275,7 +275,7 @@ cpu17: cpu@20500 {
 		};
 
 		cpu-map {
-			cluster0 {
+			cpu_map_cluster0: cluster0 {
 				core0 {
 					cpu = <&cpu0>;
 				};
diff --git a/arch/arm64/boot/dts/qcom/kalambo.dtsi b/arch/arm64/boot/dts/qcom/kalambo.dtsi
new file mode 100644
index 000000000000..a56ff68b57b4
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/kalambo.dtsi
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+#include "mahua.dtsi"
+
+/delete-node/ &cluster0_pd;
+/delete-node/ &cpu_map_cluster0;
+/delete-node/ &cpu0;
+/delete-node/ &cpu1;
+/delete-node/ &cpu2;
+/delete-node/ &cpu3;
+/delete-node/ &cpu4;
+/delete-node/ &cpu5;
+/delete-node/ &cpu_pd0;
+/delete-node/ &cpu_pd1;
+/delete-node/ &cpu_pd2;
+/delete-node/ &cpu_pd3;
+/delete-node/ &cpu_pd4;
+/delete-node/ &cpu_pd5;
+
+&pdp0_mbox {
+	reg = <0 0x17610000 0 0x8000>, <0 0x1a980000 0 0x8000>;
+};
+
+&cpu_scp_lpri1 {
+	reg = <0x180 0x60>;
+};

-- 
2.34.1


  parent reply	other threads:[~2026-07-18 12:06 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-18 12:06 [PATCH 0/5] arm64: dts: qcom: Add Kalambo SoC and CRD Gopikrishna Garmidi
2026-07-18 12:06 ` [PATCH 1/5] dt-bindings: arm: qcom: Document Kalambo SoC and board Gopikrishna Garmidi
2026-07-21 10:21   ` Krzysztof Kozlowski
2026-07-18 12:06 ` Gopikrishna Garmidi [this message]
2026-07-20  8:57   ` [PATCH 2/5] arm64: dts: qcom: Add Kalambo SoC Konrad Dybcio
2026-07-20 15:04     ` Gopikrishna Garmidi
2026-07-20 15:41       ` Konrad Dybcio
2026-07-20 21:57       ` Dmitry Baryshkov
2026-07-21  6:34         ` Gopikrishna Garmidi
2026-07-18 12:06 ` [PATCH 3/5] arm64: dts: qcom: Add Kalambo CRD Gopikrishna Garmidi
2026-07-20  8:58   ` Konrad Dybcio
2026-07-18 12:06 ` [PATCH 4/5] firmware: qcom: scm: Allow QSEECOM on " Gopikrishna Garmidi
2026-07-20  8:52   ` Konrad Dybcio
2026-07-20 21:58   ` Dmitry Baryshkov
2026-07-18 12:06 ` [PATCH 5/5] soc: qcom: ubwc: Add Kalambo UBWC config Gopikrishna Garmidi
2026-07-20  8:52   ` Konrad Dybcio
2026-07-20 21:59   ` Dmitry Baryshkov

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