* [PATCH RESEND v3 1/2] dt-bindings: arm: realtek: Add Kent Soc family compatibles
2026-01-27 7:13 [PATCH RESEND v3 0/2] arm64: dts: Add support for Kent SoC family Yu-Chun Lin
@ 2026-01-27 7:14 ` Yu-Chun Lin
2026-01-28 18:35 ` Krzysztof Kozlowski
2026-01-27 7:14 ` [PATCH RESEND v3 2/2] arm64: dts: realtek: Add Kent SoC and EVB device trees Yu-Chun Lin
1 sibling, 1 reply; 5+ messages in thread
From: Yu-Chun Lin @ 2026-01-27 7:14 UTC (permalink / raw)
To: robh, krzk+dt, conor+dt, james.tai, soc
Cc: afaerber, arnd, linux-arm-kernel, linux-realtek-soc, devicetree,
linux-kernel, cy.huang, stanley_chang, eleanor.lin, Conor Dooley
From: Yu-Chun Lin <eleanor.lin@realtek.com>
Define compatible strings for Realtek RTD1501s, RTD1861b and RTD1920s.
Additionally, convert legacy DTS-style comments to YAML description
properties, following the pattern from the ARM bindings conversion series
[1].
[1] https://lore.kernel.org/lkml/20200622125527.24207-2-afaerber@suse.de/
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Yu-Chun Lin <eleanor.lin@realtek.com>
---
.../devicetree/bindings/arm/realtek.yaml | 42 +++++++++++++------
1 file changed, 30 insertions(+), 12 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/realtek.yaml b/Documentation/devicetree/bindings/arm/realtek.yaml
index ddd9a85099e9..be529490640c 100644
--- a/Documentation/devicetree/bindings/arm/realtek.yaml
+++ b/Documentation/devicetree/bindings/arm/realtek.yaml
@@ -14,21 +14,21 @@ properties:
const: '/'
compatible:
oneOf:
- # RTD1195 SoC based boards
- - items:
+ - description: RTD1195 SoC based boards
+ items:
- enum:
- mele,x1000 # MeLE X1000
- realtek,horseradish # Realtek Horseradish EVB
- const: realtek,rtd1195
- # RTD1293 SoC based boards
- - items:
+ - description: RTD1293 SoC based boards
+ items:
- enum:
- synology,ds418j # Synology DiskStation DS418j
- const: realtek,rtd1293
- # RTD1295 SoC based boards
- - items:
+ - description: RTD1295 SoC based boards
+ items:
- enum:
- mele,v9 # MeLE V9
- probox2,ava # ProBox2 AVA
@@ -36,25 +36,43 @@ properties:
- zidoo,x9s # Zidoo X9S
- const: realtek,rtd1295
- # RTD1296 SoC based boards
- - items:
+ - description: RTD1296 SoC based boards
+ items:
- enum:
- synology,ds418 # Synology DiskStation DS418
- const: realtek,rtd1296
- # RTD1395 SoC based boards
- - items:
+ - description: RTD1395 SoC based boards
+ items:
- enum:
- bananapi,bpi-m4 # Banana Pi BPI-M4
- realtek,lion-skin # Realtek Lion Skin EVB
- const: realtek,rtd1395
- # RTD1619 SoC based boards
- - items:
+ - description: RTD1501s SoC based boards
+ items:
+ - enum:
+ - realtek,phantom # Realtek Phantom EVB (8GB)
+ - const: realtek,rtd1501s
+
+ - description: RTD1619 SoC based boards
+ items:
- enum:
- realtek,mjolnir # Realtek Mjolnir EVB
- const: realtek,rtd1619
+ - description: RTD1861b SoC based boards
+ items:
+ - enum:
+ - realtek,krypton # Realtek Krypton EVB (8GB)
+ - const: realtek,rtd1861b
+
+ - description: RTD1920s SoC based boards
+ items:
+ - enum:
+ - realtek,smallville # Realtek Smallville EVB (4GB)
+ - const: realtek,rtd1920s
+
additionalProperties: true
...
--
2.34.1
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH RESEND v3 2/2] arm64: dts: realtek: Add Kent SoC and EVB device trees
2026-01-27 7:13 [PATCH RESEND v3 0/2] arm64: dts: Add support for Kent SoC family Yu-Chun Lin
2026-01-27 7:14 ` [PATCH RESEND v3 1/2] dt-bindings: arm: realtek: Add Kent Soc family compatibles Yu-Chun Lin
@ 2026-01-27 7:14 ` Yu-Chun Lin
2026-01-28 18:41 ` Krzysztof Kozlowski
1 sibling, 1 reply; 5+ messages in thread
From: Yu-Chun Lin @ 2026-01-27 7:14 UTC (permalink / raw)
To: robh, krzk+dt, conor+dt, james.tai, soc
Cc: afaerber, arnd, linux-arm-kernel, linux-realtek-soc, devicetree,
linux-kernel, cy.huang, stanley_chang, eleanor.lin
From: Yu-Chun Lin <eleanor.lin@realtek.com>
Add Device Tree hierarchy for Realtek Kent SoC family:
- kent.dtsi: base SoC layer
- rtd<variant>.dtsi: SoC variant layer
- rtd<variant>-<board>.dtsi: board layer
- rtd<variant>-<board>-<config>.dts: board configuration layer
Include RTD1501s Phantom EVB (8GB), RTD1861B Krypton EVB (8GB), and
RTD1920s Smallville EVB (4GB).
Signed-off-by: Yu-Chun Lin <eleanor.lin@realtek.com>
---
arch/arm64/boot/dts/realtek/Makefile | 7 +-
arch/arm64/boot/dts/realtek/kent.dtsi | 166 ++++++++++++++++++
arch/arm64/boot/dts/realtek/rtd1501.dtsi | 12 ++
.../boot/dts/realtek/rtd1501s-phantom-8gb.dts | 25 +++
.../boot/dts/realtek/rtd1501s-phantom.dtsi | 118 +++++++++++++
arch/arm64/boot/dts/realtek/rtd1861.dtsi | 12 ++
.../boot/dts/realtek/rtd1861b-krypton-8gb.dts | 25 +++
.../boot/dts/realtek/rtd1861b-krypton.dtsi | 72 ++++++++
arch/arm64/boot/dts/realtek/rtd1920.dtsi | 12 ++
.../dts/realtek/rtd1920s-smallville-4gb.dts | 23 +++
.../boot/dts/realtek/rtd1920s-smallville.dtsi | 128 ++++++++++++++
11 files changed, 596 insertions(+), 4 deletions(-)
create mode 100644 arch/arm64/boot/dts/realtek/kent.dtsi
create mode 100644 arch/arm64/boot/dts/realtek/rtd1501.dtsi
create mode 100644 arch/arm64/boot/dts/realtek/rtd1501s-phantom-8gb.dts
create mode 100644 arch/arm64/boot/dts/realtek/rtd1501s-phantom.dtsi
create mode 100644 arch/arm64/boot/dts/realtek/rtd1861.dtsi
create mode 100644 arch/arm64/boot/dts/realtek/rtd1861b-krypton-8gb.dts
create mode 100644 arch/arm64/boot/dts/realtek/rtd1861b-krypton.dtsi
create mode 100644 arch/arm64/boot/dts/realtek/rtd1920.dtsi
create mode 100644 arch/arm64/boot/dts/realtek/rtd1920s-smallville-4gb.dts
create mode 100644 arch/arm64/boot/dts/realtek/rtd1920s-smallville.dtsi
diff --git a/arch/arm64/boot/dts/realtek/Makefile b/arch/arm64/boot/dts/realtek/Makefile
index ef8d8fcbaa05..60a37d5a948c 100644
--- a/arch/arm64/boot/dts/realtek/Makefile
+++ b/arch/arm64/boot/dts/realtek/Makefile
@@ -1,15 +1,14 @@
# SPDX-License-Identifier: GPL-2.0-only
dtb-$(CONFIG_ARCH_REALTEK) += rtd1293-ds418j.dtb
-
dtb-$(CONFIG_ARCH_REALTEK) += rtd1295-mele-v9.dtb
dtb-$(CONFIG_ARCH_REALTEK) += rtd1295-probox2-ava.dtb
dtb-$(CONFIG_ARCH_REALTEK) += rtd1295-xnano-x5.dtb
dtb-$(CONFIG_ARCH_REALTEK) += rtd1295-zidoo-x9s.dtb
-
dtb-$(CONFIG_ARCH_REALTEK) += rtd1296-ds418.dtb
-
dtb-$(CONFIG_ARCH_REALTEK) += rtd1395-bpi-m4.dtb
dtb-$(CONFIG_ARCH_REALTEK) += rtd1395-lionskin.dtb
-
+dtb-$(CONFIG_ARCH_REALTEK) += rtd1501s-phantom-8gb.dtb
dtb-$(CONFIG_ARCH_REALTEK) += rtd1619-mjolnir.dtb
+dtb-$(CONFIG_ARCH_REALTEK) += rtd1861b-krypton-8gb.dtb
+dtb-$(CONFIG_ARCH_REALTEK) += rtd1920s-smallville-4gb.dtb
diff --git a/arch/arm64/boot/dts/realtek/kent.dtsi b/arch/arm64/boot/dts/realtek/kent.dtsi
new file mode 100644
index 000000000000..e659bb252759
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/kent.dtsi
@@ -0,0 +1,166 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek Kent SoC family
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ aliases {
+ serial0 = &uart0;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>,
+ <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a78";
+ reg = <0x0>;
+ enable-method = "psci";
+ next-level-cache = <&l2_0>;
+ dynamic-power-coefficient = <454>;
+ #cooling-cells = <2>;
+
+ l2_0: l2-cache {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-line-size = <64>;
+ cache-sets = <256>;
+ cache-size = <0x40000>;
+ cache-unified;
+ next-level-cache = <&l3>;
+ };
+ };
+
+ cpu1: cpu@100 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a78";
+ reg = <0x100>;
+ enable-method = "psci";
+ next-level-cache = <&l2_1>;
+ dynamic-power-coefficient = <454>;
+ #cooling-cells = <2>;
+
+ l2_1: l2-cache {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-line-size = <64>;
+ cache-sets = <256>;
+ cache-size = <0x40000>;
+ cache-unified;
+ next-level-cache = <&l3>;
+ };
+ };
+
+ cpu2: cpu@200 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a78";
+ reg = <0x200>;
+ enable-method = "psci";
+ next-level-cache = <&l2_2>;
+ dynamic-power-coefficient = <454>;
+ #cooling-cells = <2>;
+
+ l2_2: l2-cache {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-line-size = <64>;
+ cache-sets = <256>;
+ cache-size = <0x40000>;
+ cache-unified;
+ next-level-cache = <&l3>;
+ };
+ };
+
+ cpu3: cpu@300 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a78";
+ reg = <0x300>;
+ enable-method = "psci";
+ next-level-cache = <&l2_3>;
+ dynamic-power-coefficient = <454>;
+ #cooling-cells = <2>;
+
+ l2_3: l2-cache {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-line-size = <64>;
+ cache-sets = <256>;
+ cache-size = <0x40000>;
+ cache-unified;
+ next-level-cache = <&l3>;
+ };
+ };
+
+ l3: l3-cache {
+ compatible = "cache";
+ cache-level = <3>;
+ cache-line-size = <64>;
+ cache-sets = <512>;
+ cache-size = <0x200000>;
+ cache-unified;
+ };
+ };
+
+ psci: psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+
+ soc@0 {
+ compatible = "simple-bus";
+ ranges = <0x0 0x0 0x0 0x40000>, /* boot code */
+ <0x98000000 0x0 0x98000000 0xef0000>, /* rbus */
+ <0xa0000000 0x0 0xa0000000 0x10000000>, /* PCIE */
+ <0xff000000 0x0 0xff000000 0x200000>; /* GIC */
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ rbus: bus@98000000 {
+ compatible = "simple-bus";
+ ranges = <0x0 0x98000000 0xef0000>,
+ <0xa0000000 0xa0000000 0x10000000>; /* PCIE */
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ uart0: serial@7800 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x7800 0x100>;
+ clock-frequency = <432000000>;
+ interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+ reg-io-width = <4>;
+ reg-shift = <2>;
+ status = "disabled";
+ };
+ };
+
+ gic: interrupt-controller@ff100000 {
+ compatible = "arm,gic-v3";
+ reg = <0xff100000 0x10000>,
+ <0xff140000 0x80000>;
+ interrupt-controller;
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ #address-cells = <1>;
+ #interrupt-cells = <3>;
+ #size-cells = <1>;
+ };
+ };
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1501.dtsi b/arch/arm64/boot/dts/realtek/rtd1501.dtsi
new file mode 100644
index 000000000000..65f7ede3df73
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1501.dtsi
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek RTD1501 SoC
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+#include "kent.dtsi"
+
+&uart0 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1501s-phantom-8gb.dts b/arch/arm64/boot/dts/realtek/rtd1501s-phantom-8gb.dts
new file mode 100644
index 000000000000..09e544acfd34
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1501s-phantom-8gb.dts
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek RTD1501S Phantom EVB
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+/dts-v1/;
+
+#include "rtd1501s-phantom.dtsi"
+
+/ {
+ compatible = "realtek,phantom", "realtek,rtd1501s";
+ model = "Realtek Phantom EVB Chromium (8GB)";
+
+ memory@40000 {
+ device_type = "memory";
+ reg = <0x0 0x50000 0x0 0x7ffb0000>,
+ <0x0 0x8a100000 0x0 0xdef0000>,
+ <0x0 0x98700000 0x0 0x7900000>,
+ <0x0 0xa0600000 0x0 0x5ea00000>,
+ <0x1 0x0 0x0 0xa0000000>,
+ <0x1 0xa0600000 0x0 0x5fa00000>;
+ };
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1501s-phantom.dtsi b/arch/arm64/boot/dts/realtek/rtd1501s-phantom.dtsi
new file mode 100644
index 000000000000..bcfb96799671
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1501s-phantom.dtsi
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek RTD1501S Phantom EVB
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/thermal/thermal.h>
+#include "rtd1501.dtsi"
+
+/ {
+ chosen {
+ stdout-path = "serial0:460800n8";
+ };
+
+ reserved_memory: reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ linux,cma {
+ compatible = "shared-dma-pool";
+ alignment = <0x0 0x400000>;
+ alloc-ranges = <0x0 0x0 0x0 0x20000000>;
+ size = <0x0 0x2000000>;
+ reusable;
+ linux,cma-default;
+ };
+ };
+
+ cpu_opps: opp-table-cpu {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp800: opp-800000000 {
+ opp-hz = /bits/ 64 <800000000>;
+ opp-microvolt = <830000 830000 1100000>;
+ };
+
+ opp900: opp-900000000 {
+ opp-hz = /bits/ 64 <900000000>;
+ opp-microvolt = <850000 850000 1100000>;
+ };
+
+ opp1000: opp-1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ opp-microvolt = <870000 870000 1100000>;
+ };
+
+ opp1100: opp-1100000000 {
+ opp-hz = /bits/ 64 <1100000000>;
+ opp-microvolt = <890000 890000 1100000>;
+ };
+
+ opp1200: opp-1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <910000 910000 1100000>;
+ };
+
+ opp1300: opp-1300000000 {
+ opp-hz = /bits/ 64 <1300000000>;
+ opp-microvolt = <930000 930000 1100000>;
+ };
+
+ opp1400: opp-1400000000 {
+ opp-hz = /bits/ 64 <1400000000>;
+ opp-microvolt = <950000 950000 1100000>;
+ };
+
+ opp1500: opp-1500000000 {
+ opp-hz = /bits/ 64 <1500000000>;
+ opp-microvolt = <970000 970000 1100000>;
+ };
+
+ opp1600: opp-1600000000 {
+ opp-hz = /bits/ 64 <1600000000>;
+ opp-microvolt = <990000 990000 1100000>;
+ opp-suspend;
+ };
+
+ opp1700: opp-1700000000 {
+ opp-hz = /bits/ 64 <1700000000>;
+ opp-microvolt = <1010000 1010000 1100000>;
+ };
+
+ opp1800: opp-1800000000 {
+ opp-hz = /bits/ 64 <1800000000>;
+ opp-microvolt = <1030000 1030000 1100000>;
+ };
+
+ opp1900: opp-1900000000 {
+ opp-hz = /bits/ 64 <1900000000>;
+ opp-microvolt = <1050000 1050000 1100000>;
+ };
+ };
+};
+
+&cpu0 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
+
+&cpu1 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
+
+&cpu2 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
+
+&cpu3 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1861.dtsi b/arch/arm64/boot/dts/realtek/rtd1861.dtsi
new file mode 100644
index 000000000000..44c3de8f1f48
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1861.dtsi
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek RTD1861 SoC
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+#include "kent.dtsi"
+
+&uart0 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1861b-krypton-8gb.dts b/arch/arm64/boot/dts/realtek/rtd1861b-krypton-8gb.dts
new file mode 100644
index 000000000000..9c23d901c49c
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1861b-krypton-8gb.dts
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek RTD1861B Krypton EVB
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+/dts-v1/;
+
+#include "rtd1861b-krypton.dtsi"
+
+/ {
+ compatible = "realtek,krypton", "realtek,rtd1861b";
+ model = "Realtek Krypton EVB (8GB)";
+
+ memory@40000 {
+ device_type = "memory";
+ reg = <0x0 0x50000 0x0 0x7ffb0000>,
+ <0x0 0x8a100000 0x0 0xdef0000>,
+ <0x0 0x98700000 0x0 0x7900000>,
+ <0x0 0xa0600000 0x0 0x5ea00000>,
+ <0x1 0x0 0x0 0xa0000000>,
+ <0x1 0xa0600000 0x0 0x5fa00000>;
+ };
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1861b-krypton.dtsi b/arch/arm64/boot/dts/realtek/rtd1861b-krypton.dtsi
new file mode 100644
index 000000000000..b500f4d2c502
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1861b-krypton.dtsi
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek RTD1861B Krypton EVB
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+/dts-v1/;
+
+#include "rtd1861.dtsi"
+
+/ {
+ chosen {
+ stdout-path = "serial0:460800n8";
+ };
+
+ reserved_memory: reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ linux,cma {
+ compatible = "shared-dma-pool";
+ alignment = <0x0 0x400000>;
+ alloc-ranges = <0x0 0x0 0x0 0x20000000>;
+ size = <0x0 0x2000000>;
+ reusable;
+ linux,cma-default;
+ };
+ };
+
+ cpu_opps: opp-table-cpu {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp1200: opp-1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <900000>;
+ };
+
+ opp1600: opp-1600000000 {
+ opp-hz = /bits/ 64 <1600000000>;
+ opp-microvolt = <1000000>;
+ opp-suspend;
+ };
+
+ opp1800: opp-1800000000 {
+ opp-hz = /bits/ 64 <1800000000>;
+ opp-microvolt = <1050000>;
+ };
+ };
+};
+
+&cpu0 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
+
+&cpu1 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
+
+&cpu2 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
+
+&cpu3 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1920.dtsi b/arch/arm64/boot/dts/realtek/rtd1920.dtsi
new file mode 100644
index 000000000000..becf546216e9
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1920.dtsi
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek RTD1920 SoC
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+#include "kent.dtsi"
+
+&uart0 {
+ status = "okay";
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1920s-smallville-4gb.dts b/arch/arm64/boot/dts/realtek/rtd1920s-smallville-4gb.dts
new file mode 100644
index 000000000000..9fd6976e0d9b
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1920s-smallville-4gb.dts
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek RTD1920S Smallville EVB
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+/dts-v1/;
+
+#include "rtd1920s-smallville.dtsi"
+
+/ {
+ compatible = "realtek,smallville", "realtek,rtd1920s";
+ model = "Realtek Smallville EVB (4GB)";
+
+ memory@40000 {
+ device_type = "memory";
+ reg = <0x0 0x50000 0x0 0x7ffb0000>,
+ <0x0 0x8a100000 0x0 0xdef0000>,
+ <0x0 0x98700000 0x0 0x7900000>,
+ <0x0 0xa1000000 0x0 0x5e000000>;
+ };
+};
diff --git a/arch/arm64/boot/dts/realtek/rtd1920s-smallville.dtsi b/arch/arm64/boot/dts/realtek/rtd1920s-smallville.dtsi
new file mode 100644
index 000000000000..3db8fcea6447
--- /dev/null
+++ b/arch/arm64/boot/dts/realtek/rtd1920s-smallville.dtsi
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Realtek RTD1920S Smallville EVB
+ *
+ * Copyright (c) 2024 Realtek Semiconductor Corp.
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/thermal/thermal.h>
+#include "rtd1920.dtsi"
+
+/ {
+ chosen {
+ stdout-path = "serial0:460800n8";
+ };
+
+ reserved_memory: reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ protected_mem: protected-mem@50000 {
+ reg = <0x0 0x50000 0x0 0xbf0000>;
+ no-map;
+ };
+
+ metadata: metadata@c40000 {
+ reg = <0x0 0xc40000 0x0 0x3c4000>;
+ no-map;
+ };
+
+ linux,cma {
+ compatible = "shared-dma-pool";
+ alignment = <0x0 0x400000>;
+ alloc-ranges = <0x0 0x0 0x0 0x20000000>;
+ size = <0x0 0x2000000>;
+ reusable;
+ linux,cma-default;
+ };
+ };
+
+ cpu_opps: opp-table-cpu {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ opp800: opp-800000000 {
+ opp-hz = /bits/ 64 <800000000>;
+ opp-microvolt = <830000 830000 1100000>;
+ };
+
+ opp900: opp-900000000 {
+ opp-hz = /bits/ 64 <900000000>;
+ opp-microvolt = <850000 850000 1100000>;
+ };
+
+ opp1000: opp-1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ opp-microvolt = <870000 870000 1100000>;
+ };
+
+ opp1100: opp-1100000000 {
+ opp-hz = /bits/ 64 <1100000000>;
+ opp-microvolt = <890000 890000 1100000>;
+ };
+
+ opp1200: opp-1200000000 {
+ opp-hz = /bits/ 64 <1200000000>;
+ opp-microvolt = <910000 910000 1100000>;
+ };
+
+ opp1300: opp-1300000000 {
+ opp-hz = /bits/ 64 <1300000000>;
+ opp-microvolt = <930000 930000 1100000>;
+ };
+
+ opp1400: opp-1400000000 {
+ opp-hz = /bits/ 64 <1400000000>;
+ opp-microvolt = <950000 950000 1100000>;
+ };
+
+ opp1500: opp-1500000000 {
+ opp-hz = /bits/ 64 <1500000000>;
+ opp-microvolt = <970000 970000 1100000>;
+ };
+
+ opp1600: opp-1600000000 {
+ opp-hz = /bits/ 64 <1600000000>;
+ opp-microvolt = <990000 990000 1100000>;
+ opp-suspend;
+ };
+
+ opp1700: opp-1700000000 {
+ opp-hz = /bits/ 64 <1700000000>;
+ opp-microvolt = <1010000 1010000 1100000>;
+ };
+
+ opp1800: opp-1800000000 {
+ opp-hz = /bits/ 64 <1800000000>;
+ opp-microvolt = <1030000 1030000 1100000>;
+ };
+
+ opp1900: opp-1900000000 {
+ opp-hz = /bits/ 64 <1900000000>;
+ opp-microvolt = <1050000 1050000 1100000>;
+ };
+ };
+};
+
+&cpu0 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
+
+&cpu1 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
+
+&cpu2 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
+
+&cpu3 {
+ operating-points-v2 = <&cpu_opps>;
+ #cooling-cells = <2>;
+};
--
2.34.1
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