[PATCH 2/7] arm64: dts: qcom: Update memory-map for IoT platforms in lemans
From: Wasim Nazir
Date: Tue Jul 22 2025 - 10:58:02 EST
Stop using the outdated automotive memory map for Lemans; update it to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@xxxxxxxxxxx>
Signed-off-by: Pratyush Brahma <quic_pbrahma@xxxxxxxxxxx>
Co-developed-by: Prakash Gupta <quic_guptap@xxxxxxxxxxx>
Signed-off-by: Prakash Gupta <quic_guptap@xxxxxxxxxxx>
Signed-off-by: Wasim Nazir <wasim.nazir@xxxxxxxxxxxxxxxx>
---
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@91c00000 {
+ compatible = "shared-dma-pool";
+ reg = <0x0 0x91c00000 0x0 0x1400000>;
+ no-map;
+ };
+
+ pil_camera_mem: pil-camera@95200000 {
+ reg = <0x0 0x95200000 0x0 0x500000>;
+ no-map;
+ };
+
+ pil_adsp_mem: pil-adsp@95c00000 {
+ reg = <0x0 0x95c00000 0x0 0x1e00000>;
+ no-map;
+ };
+
+ pil_gdsp0_mem: pil-gdsp0@97b00000 {
+ reg = <0x0 0x97b00000 0x0 0x1e00000>;
+ no-map;
+ };
+
+ pil_gdsp1_mem: pil-gdsp1@99900000 {
+ reg = <0x0 0x99900000 0x0 0x1e00000>;
+ no-map;
+ };
+
+ pil_cdsp0_mem: pil-cdsp0@9b800000 {
+ reg = <0x0 0x9b800000 0x0 0x1e00000>;
+ no-map;
+ };
+
+ pil_gpu_mem: pil-gpu@9d600000 {
+ reg = <0x0 0x9d600000 0x0 0x2000>;
+ no-map;
+ };
+
+ pil_cdsp1_mem: pil-cdsp1@9d700000 {
+ reg = <0x0 0x9d700000 0x0 0x1e00000>;
+ no-map;
+ };
+
+ pil_cvp_mem: pil-cvp@9f500000 {
+ reg = <0x0 0x9f500000 0x0 0x700000>;
+ no-map;
+ };
+
+ pil_video_mem: pil-video@9fc00000 {
+ reg = <0x0 0x9fc00000 0x0 0x700000>;
+ no-map;
+ };
+
+ audio_mdf_mem: audio-mdf-region@ae000000 {
+ reg = <0x0 0xae000000 0x0 0x1000000>;
+ no-map;
+ };
+
+ hyptz_reserved_mem: hyptz-reserved@beb00000 {
+ reg = <0x0 0xbeb00000 0x0 0x11500000>;
+ no-map;
+ };
+
+ trusted_apps_mem: trusted-apps@d1900000 {
+ 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@90e00000 {
no-map;
};
+ gunyah_md_mem: gunyah-md@91a80000 {
+ reg = <0x0 0x91a80000 0x0 0x80000>;
+ no-map;
+ };
+
aoss_backup_mem: aoss-backup@91b00000 {
reg = <0x0 0x91b00000 0x0 0x40000>;
no-map;
@@ -798,12 +802,6 @@ cdt_data_backup_mem: cdt-data-backup@91ba0000 {
no-map;
};
- tz_ffi_mem: tz-ffi@91c00000 {
- compatible = "shared-dma-pool";
- reg = <0x0 0x91c00000 0x0 0x1400000>;
- no-map;
- };
-
lpass_machine_learning_mem: lpass-machine-learning@93b00000 {
reg = <0x0 0x93b00000 0x0 0xf00000>;
no-map;
@@ -815,62 +813,77 @@ adsp_rpc_remote_heap_mem: adsp-rpc-remote-heap@94a00000 {
};
pil_camera_mem: pil-camera@95200000 {
- reg = <0x0 0x95200000 0x0 0x500000>;
+ reg = <0x0 0x95200000 0x0 0x700000>;
no-map;
};
- pil_adsp_mem: pil-adsp@95c00000 {
- reg = <0x0 0x95c00000 0x0 0x1e00000>;
+ pil_adsp_mem: pil-adsp@95900000 {
+ reg = <0x0 0x95900000 0x0 0x1e00000>;
no-map;
};
- pil_gdsp0_mem: pil-gdsp0@97b00000 {
- reg = <0x0 0x97b00000 0x0 0x1e00000>;
+ q6_adsp_dtb_mem: q6-adsp-dtb@97700000 {
+ reg = <0x0 0x97700000 0x0 0x80000>;
no-map;
};
- pil_gdsp1_mem: pil-gdsp1@99900000 {
- reg = <0x0 0x99900000 0x0 0x1e00000>;
+ q6_gdsp0_dtb_mem: q6-gdsp0-dtb@97780000 {
+ reg = <0x0 0x97780000 0x0 0x80000>;
no-map;
};
- pil_cdsp0_mem: pil-cdsp0@9b800000 {
- reg = <0x0 0x9b800000 0x0 0x1e00000>;
+ pil_gdsp0_mem: pil-gdsp0@97800000 {
+ reg = <0x0 0x97800000 0x0 0x1e00000>;
no-map;
};
- pil_gpu_mem: pil-gpu@9d600000 {
- reg = <0x0 0x9d600000 0x0 0x2000>;
+ pil_gdsp1_mem: pil-gdsp1@99600000 {
+ reg = <0x0 0x99600000 0x0 0x1e00000>;
no-map;
};
- pil_cdsp1_mem: pil-cdsp1@9d700000 {
- reg = <0x0 0x9d700000 0x0 0x1e00000>;
+ q6_gdsp1_dtb_mem: q6-gdsp1-dtb@9b400000 {
+ reg = <0x0 0x9b400000 0x0 0x80000>;
no-map;
};
- pil_cvp_mem: pil-cvp@9f500000 {
- reg = <0x0 0x9f500000 0x0 0x700000>;
+ q6_cdsp0_dtb_mem: q6-cdsp0-dtb@9b480000 {
+ reg = <0x0 0x9b480000 0x0 0x80000>;
no-map;
};
- pil_video_mem: pil-video@9fc00000 {
- reg = <0x0 0x9fc00000 0x0 0x700000>;
+ pil_cdsp0_mem: pil-cdsp0@9b500000 {
+ reg = <0x0 0x9b500000 0x0 0x1e00000>;
no-map;
};
- audio_mdf_mem: audio-mdf-region@ae000000 {
- reg = <0x0 0xae000000 0x0 0x1000000>;
+ pil_gpu_mem: pil-gpu@9d300000 {
+ reg = <0x0 0x9d300000 0x0 0x2000>;
no-map;
};
- firmware_mem: firmware-region@b0000000 {
- reg = <0x0 0xb0000000 0x0 0x800000>;
+ q6_cdsp1_dtb_mem: q6-cdsp1-dtb@9d380000 {
+ reg = <0x0 0x9d380000 0x0 0x80000>;
no-map;
};
- hyptz_reserved_mem: hyptz-reserved@beb00000 {
- reg = <0x0 0xbeb00000 0x0 0x11500000>;
+ pil_cdsp1_mem: pil-cdsp1@9d400000 {
+ reg = <0x0 0x9d400000 0x0 0x1e00000>;
+ no-map;
+ };
+
+ pil_cvp_mem: pil-cvp@9f200000 {
+ reg = <0x0 0x9f200000 0x0 0x700000>;
+ no-map;
+ };
+
+ pil_video_mem: pil-video@9f900000 {
+ reg = <0x0 0x9f900000 0x0 0x1000000>;
+ no-map;
+ };
+
+ firmware_mem: firmware-region@b0000000 {
+ reg = <0x0 0xb0000000 0x0 0x800000>;
no-map;
};
@@ -915,7 +928,7 @@ deepsleep_backup_mem: deepsleep-backup@d1800000 {
};
trusted_apps_mem: trusted-apps@d1900000 {
- 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