Il 10/01/24 10:51, Rafał Miłecki ha scritto:
From: Rafał Miłecki <rafal@xxxxxxxxxx>
MT7981B (AKA MediaTek Filogic 820) is a dual-core ARM Cortex-A53 SoC.
One of market devices using this SoC is Xiaomi AX3000T.
This is initial contribution with basic SoC support. More hardware block
will get added later. Some will need their bindings (like auxadc).
Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
---
arch/arm64/boot/dts/mediatek/Makefile | 1 +
.../dts/mediatek/mt7981b-xiaomi-ax3000t.dts | 15 +++
arch/arm64/boot/dts/mediatek/mt7981b.dtsi | 108 ++++++++++++++++++
3 files changed, 124 insertions(+)
create mode 100644 arch/arm64/boot/dts/mediatek/mt7981b-xiaomi-ax3000t.dts
create mode 100644 arch/arm64/boot/dts/mediatek/mt7981b.dtsi
diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 0a189d5d8006..8bff11acfe1f 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -8,6 +8,7 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-evb.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-x20-dev.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-rfb1.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-bananapi-bpi-r64.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt7981b-xiaomi-ax3000t.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-emmc.dtbo
dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-nand.dtbo
diff --git a/arch/arm64/boot/dts/mediatek/mt7981b-xiaomi-ax3000t.dts b/arch/arm64/boot/dts/mediatek/mt7981b-xiaomi-ax3000t.dts
new file mode 100644
index 000000000000..a314c3e05e50
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7981b-xiaomi-ax3000t.dts
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+
+/dts-v1/;
+
+#include "mt7981b.dtsi"
+
+/ {
+ compatible = "xiaomi,ax3000t", "mediatek,mt7981b";
+ model = "Xiaomi AX3000T";
+
+ memory@40000000 {
+ reg = <0 0x40000000 0 0x10000000>;
+ device_type = "memory";
+ };
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt7981b.dtsi b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
new file mode 100644
index 000000000000..ce878ad55204
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7981b.dtsi
@@ -0,0 +1,108 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+
+#include <dt-bindings/clock/mediatek,mt7981-clk.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ compatible = "mediatek,mt7981b";
+ interrupt-parent = <&gic>;
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ compatible = "arm,cortex-a53";
+ reg = <0x0>;
+ device_type = "cpu";
+ enable-method = "psci";
+ };
+
+ cpu@1 {
+ compatible = "arm,cortex-a53";
+ reg = <0x1>;
+ device_type = "cpu";
+ enable-method = "psci";
+ };
+ };
+
+ oscillator-40m {
+ compatible = "fixed-clock";
+ clock-frequency = <40000000>;
+ clock-output-names = "clkxtal";
+ #clock-cells = <0>;
+ };
+
+ psci {
+ compatible = "arm,psci-0.2";
PSCI 0.2? I invite you to check a kernel log for a string like this one:
`PSCIv%d.%d detected in firmware`
...because of course if it says v1.0, this should be "arm,psci-1.0".
This is just a nitpick anyway, so you can already get my
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
P.S.: but please, confirm or deny that PSCI thing ASAP :-)
P.P.S.: For next time - I'd be happy if you could add a cover letter to your
patch series..!
Cheers,
Angelo
