iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arm64: dts: mediatek: add basic mt7986 support

Browse Source 
Add basic chip support for Mediatek mt7986, include
basic uart nodes, rng node and watchdog node.

Add cpu node, timer node, gic node, psci and reserved-memory node
for ARM Trusted Firmware.

Signed-off-by: Sam Shih <sam.shih@mediatek.com>
Link: https://lore.kernel.org/r/20211122123222.8016-3-sam.shih@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Sam Shih 2021-11-22 20:32:22 +08:00 committed by Matthias Brugger
parent 19ebf10e8d
commit 50137c150f
3 changed files with 186 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm64/boot/dts/mediatek/Makefile
View File

@ -7,6 +7,7 @@ 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-$(CONFIG_ARCH_MEDIATEK) += mt7986a-rfb.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8167-pumpkin.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-elm.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += mt8173-elm-hana.dtb

37
arch/arm64/boot/dts/mediatek/mt7986a-rfb.dts Normal file
View File

@ -0,0 +1,37 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2021 MediaTek Inc.
* Author: Sam.Shih <sam.shih@mediatek.com>
*/
/dts-v1/;
#include "mt7986a.dtsi"
/ {
model = "MediaTek MT7986a RFB";
compatible = "mediatek,mt7986a-rfb";
aliases {
serial0 = &uart0;
};
chosen {
stdout-path = "serial0:115200n8";
};
memory {
reg = <0 0x40000000 0 0x40000000>;
};
};
&uart0 {
status = "okay";
};
&uart1 {
status = "okay";
};
&uart2 {
status = "okay";
};

148
arch/arm64/boot/dts/mediatek/mt7986a.dtsi Normal file
View File

@ -0,0 +1,148 @@
// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
* Copyright (C) 2021 MediaTek Inc.
* Author: Sam.Shih <sam.shih@mediatek.com>
*/
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
/ {
interrupt-parent = <&gic>;
#address-cells = <2>;
#size-cells = <2>;
system_clk: dummy40m {
compatible = "fixed-clock";
clock-frequency = <40000000>;
#clock-cells = <0>;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu0: cpu@0 {
device_type = "cpu";
compatible = "arm,cortex-a53";
enable-method = "psci";
reg = <0x0>;
#cooling-cells = <2>;
};
cpu1: cpu@1 {
device_type = "cpu";
compatible = "arm,cortex-a53";
enable-method = "psci";
reg = <0x1>;
#cooling-cells = <2>;
};
cpu2: cpu@2 {
device_type = "cpu";
compatible = "arm,cortex-a53";
enable-method = "psci";
reg = <0x2>;
#cooling-cells = <2>;
};
cpu3: cpu@3 {
device_type = "cpu";
enable-method = "psci";
compatible = "arm,cortex-a53";
reg = <0x3>;
#cooling-cells = <2>;
};
};
psci {
compatible = "arm,psci-0.2";
method = "smc";
};
reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
/* 192 KiB reserved for ARM Trusted Firmware (BL31) */
secmon_reserved: secmon@43000000 {
reg = <0 0x43000000 0 0x30000>;
no-map;
};
};
timer {
compatible = "arm,armv8-timer";
interrupt-parent = <&gic>;
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>;
};
soc {
#address-cells = <2>;
#size-cells = <2>;
compatible = "simple-bus";
ranges;
gic: interrupt-controller@c000000 {
compatible = "arm,gic-v3";
#interrupt-cells = <3>;
interrupt-parent = <&gic>;
interrupt-controller;
reg = <0 0x0c000000 0 0x10000>, /* GICD */
<0 0x0c080000 0 0x80000>, /* GICR */
<0 0x0c400000 0 0x2000>, /* GICC */
<0 0x0c410000 0 0x1000>, /* GICH */
<0 0x0c420000 0 0x2000>; /* GICV */
interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
};
watchdog: watchdog@1001c000 {
compatible = "mediatek,mt7986-wdt",
"mediatek,mt6589-wdt";
reg = <0 0x1001c000 0 0x1000>;
interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
#reset-cells = <1>;
status = "disabled";
};
trng: trng@1020f000 {
compatible = "mediatek,mt7986-rng",
"mediatek,mt7623-rng";
reg = <0 0x1020f000 0 0x100>;
clocks = <&system_clk>;
clock-names = "rng";
status = "disabled";
};
uart0: serial@11002000 {
compatible = "mediatek,mt7986-uart",
"mediatek,mt6577-uart";
reg = <0 0x11002000 0 0x400>;
interrupts = <GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&system_clk>;
status = "disabled";
};
uart1: serial@11003000 {
compatible = "mediatek,mt7986-uart",
"mediatek,mt6577-uart";
reg = <0 0x11003000 0 0x400>;
interrupts = <GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&system_clk>;
status = "disabled";
};
uart2: serial@11004000 {
compatible = "mediatek,mt7986-uart",
"mediatek,mt6577-uart";
reg = <0 0x11004000 0 0x400>;
interrupts = <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&system_clk>;
status = "disabled";
};
};
};