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Message-ID: <20250722144926.995064-3-wasim.nazir@oss.qualcomm.com>
Date: Tue, 22 Jul 2025 20:19:21 +0530
From: Wasim Nazir <wasim.nazir@....qualcomm.com>
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>,
        Richard Cochran <richardcochran@...il.com>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
        kernel@....qualcomm.com, Wasim Nazir <wasim.nazir@....qualcomm.com>,
        Pratyush Brahma <quic_pbrahma@...cinc.com>,
        Prakash Gupta <quic_guptap@...cinc.com>
Subject: [PATCH 2/7] arm64: dts: qcom: Update memory-map for IoT platforms in lemans

Stop using the outdated automotive memory map for Lemans; update it to
meet IoT requirements.

Since, most platforms are IoT-based, treat IoT as the default variant
under "lemans" and apply it to all platforms, except those requiring the
old memory-map (e.g., sa8775p, ride, and ride-r3).
Introduce "lemans-auto" as a derivative of "lemans" that retains the old
automotive memory map to support legacy use cases.

As part of the IoT memory map updates:
  - Introduce new carveouts for gunyah_md and pil_dtb. Adjust the size and
    base address of the PIL carveout to accommodate these changes.
  - Increase the size of the video/camera PIL carveout without affecting
    existing functionality.
  - Reduce the size of the trusted apps carveout to meet IoT-specific
    requirements.
  - Remove audio_mdf_mem, tz_ffi_mem, and their corresponding SCM references,
    as they are not required for IoT platforms.

Co-developed-by: Pratyush Brahma <quic_pbrahma@...cinc.com>
Signed-off-by: Pratyush Brahma <quic_pbrahma@...cinc.com>
Co-developed-by: Prakash Gupta <quic_guptap@...cinc.com>
Signed-off-by: Prakash Gupta <quic_guptap@...cinc.com>
Signed-off-by: Wasim Nazir <wasim.nazir@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/lemans-auto.dtsi  | 104 +++++++++++++++++++++
 arch/arm64/boot/dts/qcom/lemans.dtsi       |  75 +++++++++------
 arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi |   2 +-
 3 files changed, 149 insertions(+), 32 deletions(-)
 create mode 100644 arch/arm64/boot/dts/qcom/lemans-auto.dtsi

diff --git a/arch/arm64/boot/dts/qcom/lemans-auto.dtsi b/arch/arm64/boot/dts/qcom/lemans-auto.dtsi
new file mode 100644
index 000000000000..8db958d60fd1
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/lemans-auto.dtsi
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) 2023, Linaro Limited
+ */
+
+/dts-v1/;
+
+#include "lemans.dtsi"
+
+/delete-node/ &pil_camera_mem;
+/delete-node/ &pil_adsp_mem;
+/delete-node/ &q6_adsp_dtb_mem;
+/delete-node/ &q6_gdsp0_dtb_mem;
+/delete-node/ &pil_gdsp0_mem;
+/delete-node/ &pil_gdsp1_mem;
+/delete-node/ &q6_gdsp1_dtb_mem;
+/delete-node/ &q6_cdsp0_dtb_mem;
+/delete-node/ &pil_cdsp0_mem;
+/delete-node/ &pil_gpu_mem;
+/delete-node/ &pil_cdsp1_mem;
+/delete-node/ &q6_cdsp1_dtb_mem;
+/delete-node/ &pil_cvp_mem;
+/delete-node/ &pil_video_mem;
+/delete-node/ &gunyah_md_mem;
+
+/ {
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		tz_ffi_mem: tz-ffi@...00000 {
+			compatible = "shared-dma-pool";
+			reg = <0x0 0x91c00000 0x0 0x1400000>;
+			no-map;
+		};
+
+		pil_camera_mem: pil-camera@...00000 {
+			reg = <0x0 0x95200000 0x0 0x500000>;
+			no-map;
+		};
+
+		pil_adsp_mem: pil-adsp@...00000 {
+			reg = <0x0 0x95c00000 0x0 0x1e00000>;
+			no-map;
+		};
+
+		pil_gdsp0_mem: pil-gdsp0@...00000 {
+			reg = <0x0 0x97b00000 0x0 0x1e00000>;
+			no-map;
+		};
+
+		pil_gdsp1_mem: pil-gdsp1@...00000 {
+			reg = <0x0 0x99900000 0x0 0x1e00000>;
+			no-map;
+		};
+
+		pil_cdsp0_mem: pil-cdsp0@...00000 {
+			reg = <0x0 0x9b800000 0x0 0x1e00000>;
+			no-map;
+		};
+
+		pil_gpu_mem: pil-gpu@...00000 {
+			reg = <0x0 0x9d600000 0x0 0x2000>;
+			no-map;
+		};
+
+		pil_cdsp1_mem: pil-cdsp1@...00000 {
+			reg = <0x0 0x9d700000 0x0 0x1e00000>;
+			no-map;
+		};
+
+		pil_cvp_mem: pil-cvp@...00000 {
+			reg = <0x0 0x9f500000 0x0 0x700000>;
+			no-map;
+		};
+
+		pil_video_mem: pil-video@...00000 {
+			reg = <0x0 0x9fc00000 0x0 0x700000>;
+			no-map;
+		};
+
+		audio_mdf_mem: audio-mdf-region@...00000 {
+			reg = <0x0 0xae000000 0x0 0x1000000>;
+			no-map;
+		};
+
+		hyptz_reserved_mem: hyptz-reserved@...00000 {
+			reg = <0x0 0xbeb00000 0x0 0x11500000>;
+			no-map;
+		};
+
+		trusted_apps_mem: trusted-apps@...00000 {
+			reg = <0x0 0xd1900000 0x0 0x3800000>;
+			no-map;
+		};
+	};
+
+	firmware {
+		scm {
+			memory-region = <&tz_ffi_mem>;
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi
index 9997a29901f5..bf273660e0cb 100644
--- a/arch/arm64/boot/dts/qcom/lemans.dtsi
+++ b/arch/arm64/boot/dts/qcom/lemans.dtsi
@@ -514,7 +514,6 @@ firmware {
 		scm {
 			compatible = "qcom,scm-sa8775p", "qcom,scm";
 			qcom,dload-mode = <&tcsr 0x13000>;
-			memory-region = <&tz_ffi_mem>;
 		};
 	};

@@ -773,6 +772,11 @@ sail_ota_mem: sail-ss@...00000 {
 			no-map;
 		};

+		gunyah_md_mem: gunyah-md@...80000 {
+			reg = <0x0 0x91a80000 0x0 0x80000>;
+			no-map;
+		};
+
 		aoss_backup_mem: aoss-backup@...00000 {
 			reg = <0x0 0x91b00000 0x0 0x40000>;
 			no-map;
@@ -798,12 +802,6 @@ cdt_data_backup_mem: cdt-data-backup@...a0000 {
 			no-map;
 		};

-		tz_ffi_mem: tz-ffi@...00000 {
-			compatible = "shared-dma-pool";
-			reg = <0x0 0x91c00000 0x0 0x1400000>;
-			no-map;
-		};
-
 		lpass_machine_learning_mem: lpass-machine-learning@...00000 {
 			reg = <0x0 0x93b00000 0x0 0xf00000>;
 			no-map;
@@ -815,62 +813,77 @@ adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap@...00000 {
 		};

 		pil_camera_mem: pil-camera@...00000 {
-			reg = <0x0 0x95200000 0x0 0x500000>;
+			reg = <0x0 0x95200000 0x0 0x700000>;
 			no-map;
 		};

-		pil_adsp_mem: pil-adsp@...00000 {
-			reg = <0x0 0x95c00000 0x0 0x1e00000>;
+		pil_adsp_mem: pil-adsp@...00000 {
+			reg = <0x0 0x95900000 0x0 0x1e00000>;
 			no-map;
 		};

-		pil_gdsp0_mem: pil-gdsp0@...00000 {
-			reg = <0x0 0x97b00000 0x0 0x1e00000>;
+		q6_adsp_dtb_mem: q6-adsp-dtb@...00000 {
+			reg = <0x0 0x97700000 0x0 0x80000>;
 			no-map;
 		};

-		pil_gdsp1_mem: pil-gdsp1@...00000 {
-			reg = <0x0 0x99900000 0x0 0x1e00000>;
+		q6_gdsp0_dtb_mem: q6-gdsp0-dtb@...80000 {
+			reg = <0x0 0x97780000 0x0 0x80000>;
 			no-map;
 		};

-		pil_cdsp0_mem: pil-cdsp0@...00000 {
-			reg = <0x0 0x9b800000 0x0 0x1e00000>;
+		pil_gdsp0_mem: pil-gdsp0@...00000 {
+			reg = <0x0 0x97800000 0x0 0x1e00000>;
 			no-map;
 		};

-		pil_gpu_mem: pil-gpu@...00000 {
-			reg = <0x0 0x9d600000 0x0 0x2000>;
+		pil_gdsp1_mem: pil-gdsp1@...00000 {
+			reg = <0x0 0x99600000 0x0 0x1e00000>;
 			no-map;
 		};

-		pil_cdsp1_mem: pil-cdsp1@...00000 {
-			reg = <0x0 0x9d700000 0x0 0x1e00000>;
+		q6_gdsp1_dtb_mem: q6-gdsp1-dtb@...00000 {
+			reg = <0x0 0x9b400000 0x0 0x80000>;
 			no-map;
 		};

-		pil_cvp_mem: pil-cvp@...00000 {
-			reg = <0x0 0x9f500000 0x0 0x700000>;
+		q6_cdsp0_dtb_mem: q6-cdsp0-dtb@...80000 {
+			reg = <0x0 0x9b480000 0x0 0x80000>;
 			no-map;
 		};

-		pil_video_mem: pil-video@...00000 {
-			reg = <0x0 0x9fc00000 0x0 0x700000>;
+		pil_cdsp0_mem: pil-cdsp0@...00000 {
+			reg = <0x0 0x9b500000 0x0 0x1e00000>;
 			no-map;
 		};

-		audio_mdf_mem: audio-mdf-region@...00000 {
-			reg = <0x0 0xae000000 0x0 0x1000000>;
+		pil_gpu_mem: pil-gpu@...00000 {
+			reg = <0x0 0x9d300000 0x0 0x2000>;
 			no-map;
 		};

-		firmware_mem: firmware-region@...00000 {
-			reg = <0x0 0xb0000000 0x0 0x800000>;
+		q6_cdsp1_dtb_mem: q6-cdsp1-dtb@...80000 {
+			reg = <0x0 0x9d380000 0x0 0x80000>;
 			no-map;
 		};

-		hyptz_reserved_mem: hyptz-reserved@...00000 {
-			reg = <0x0 0xbeb00000 0x0 0x11500000>;
+		pil_cdsp1_mem: pil-cdsp1@...00000 {
+			reg = <0x0 0x9d400000 0x0 0x1e00000>;
+			no-map;
+		};
+
+		pil_cvp_mem: pil-cvp@...00000 {
+			reg = <0x0 0x9f200000 0x0 0x700000>;
+			no-map;
+		};
+
+		pil_video_mem: pil-video@...00000 {
+			reg = <0x0 0x9f900000 0x0 0x1000000>;
+			no-map;
+		};
+
+		firmware_mem: firmware-region@...00000 {
+			reg = <0x0 0xb0000000 0x0 0x800000>;
 			no-map;
 		};

@@ -915,7 +928,7 @@ deepsleep_backup_mem: deepsleep-backup@...00000 {
 		};

 		trusted_apps_mem: trusted-apps@...00000 {
-			reg = <0x0 0xd1900000 0x0 0x3800000>;
+			reg = <0x0 0xd1900000 0x0 0x1c00000>;
 			no-map;
 		};

diff --git a/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi b/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
index bcd284c0f939..a9ec6ded412e 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p-ride.dtsi
@@ -8,7 +8,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>

-#include "lemans.dtsi"
+#include "lemans-auto.dtsi"
 #include "sa8775p-pmics.dtsi"

 / {
--
2.49.0


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