[PATCH v2 4/5] arm64: dts: imx93: Cortex-A Core remoteproc device node

Jiafei Pan
2026-04-29T03:08:38Z

Create device tree for i.MX93 14x14 evk and 11x11 evk, add Cortex-A Core
remoteproc device nodes in these device tree.

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
---
arch/arm64/boot/dts/freescale/Makefile | 2 +
.../imx93-11x11-evk-multicore-rtos.dts | 39 +++++++++++++++++++
.../imx93-14x14-evk-multicore-rtos.dts | 39 +++++++++++++++++++
.../boot/dts/freescale/imx93-rproc-ca55.dtsi | 14 +++++++
4 files changed, 94 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx93-11x11-evk-multicore-rtos.dts
create mode 100644 arch/arm64/boot/dts/freescale/imx93-14x14-evk-multicore-rtos.dts
create mode 100644 arch/arm64/boot/dts/freescale/imx93-rproc-ca55.dtsi

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 711e36cc2c99..f067e5c44dae 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -460,12 +460,14 @@ dtb-$(CONFIG_ARCH_MXC) += imx93-9x9-qsb-i3c.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-9x9-qsb-ontat-kd50g21-40nt-a1.dtb

dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-evk-multicore-rtos.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-frdm.dtb

imx93-11x11-frdm-pixpaper-dtbs += imx93-11x11-frdm.dtb imx93-11x11-frdm-pixpaper.dtbo
dtb-$(CONFIG_ARCH_MXC) += imx93-11x11-frdm-pixpaper.dtb

dtb-$(CONFIG_ARCH_MXC) += imx93-14x14-evk.dtb
+dtb-$(CONFIG_ARCH_MXC) += imx93-14x14-evk-multicore-rtos.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-kontron-bl-osm-s.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-nash.dtb
dtb-$(CONFIG_ARCH_MXC) += imx93-phyboard-segin.dtb
diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk-multicore-rtos.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk-multicore-rtos.dts
new file mode 100644
index 000000000000..9fb2b94b83b4
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk-multicore-rtos.dts
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2023-2026 NXP
+ */
+
+/dts-v1/;
+#include "imx93-11x11-evk.dts"
+#include "imx93-rproc-ca55.dtsi"
+
+/ {
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ /*
+ * Reserve up to 16MB for one possible RTOS instances running on
+ * one Cortex-A Cores when booting Linux on at least one Cortex-A Core.
+ */
+ rtos_ca55_reserved: rtos-ca55@d0000000 {
+ no-map;
+ reg = <0 0xd0000000 0x0 0x1000000>;
+ };
+
+ /* Reserve 16MB for FreeRTOS on M33 */
+ m33_reserved: m33@a5000000 {
+ no-map;
+ reg = <0 0xa5000000 0 0x1000000>;
+ };
+ };
+};
+
+&lpuart2 {
+ status = "disabled";
+};
+
+&clk {
+ init-on-array = <IMX93_CLK_LPUART2_GATE>;
+};
diff --git a/arch/arm64/boot/dts/freescale/imx93-14x14-evk-multicore-rtos.dts b/arch/arm64/boot/dts/freescale/imx93-14x14-evk-multicore-rtos.dts
new file mode 100644
index 000000000000..b2481bf19b4a
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx93-14x14-evk-multicore-rtos.dts
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2024-2026 NXP
+ */
+
+/dts-v1/;
+#include "imx93-14x14-evk.dts"
+#include "imx93-rproc-ca55.dtsi"
+
+/ {
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ /*
+ * Reserve up to 16MB for one possible RTOS instances running on
+ * one Cortex-A Cores when booting Linux on at least one Cortex-A Core.
+ */
+ rtos_ca55_reserved: rtos-ca55@d0000000 {
+ no-map;
+ reg = <0 0xd0000000 0x0 0x1000000>;
+ };
+
+ /* Reserve 16MB for FreeRTOS on M33 */
+ m33_reserved: m33@a5000000 {
+ no-map;
+ reg = <0 0xa5000000 0 0x1000000>;
+ };
+ };
+};
+
+&lpuart2 {
+ status = "disabled";
+};
+
+&clk {
+ init-on-array = <IMX93_CLK_LPUART2_GATE>;
+};
diff --git a/arch/arm64/boot/dts/freescale/imx93-rproc-ca55.dtsi b/arch/arm64/boot/dts/freescale/imx93-rproc-ca55.dtsi
new file mode 100644
index 000000000000..9d9a60404d2b
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx93-rproc-ca55.dtsi
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright 2024-2026 NXP
+ */
+
+/ {
+ ca55_1: remoteproc-ca55-1 {
+ compatible = "fsl,imx-rproc-psci";
+ /* bitmask:0b10, assign A55 Core 1 */
+ fsl,cpus-bits = <0x2>;
+ memory-region = <&rtos_ca55_reserved>;
+ };
+};
+
--
2.43.0