diff options
author | Xianwei Zhao <xianwei.zhao@amlogic.com> | 2022-01-06 14:22:14 +0300 |
---|---|---|
committer | Neil Armstrong <narmstrong@baylibre.com> | 2022-01-13 12:00:23 +0300 |
commit | ac4dfd0d1d350412c7e4958821a5d7e47edc5a73 (patch) | |
tree | b4d1bcbe2a940173c0918045b53cab23bfbc3a90 | |
parent | ac7b4433714a37e2c4b61acc6ce9b4538175e836 (diff) | |
download | linux-ac4dfd0d1d350412c7e4958821a5d7e47edc5a73.tar.xz |
arm64: dts: add support for S4 based Amlogic AQ222
Add basic support for the Amlogic S4 based Amlogic AQ222 board:
which describe components as follows: CPU, GIC, IRQ, Timer, UART.
It's capable of booting up into the serial console.
Signed-off-by: Xianwei Zhao <xianwei.zhao@amlogic.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[narmstrong: fixed memory unit address warning]
Link: https://lore.kernel.org/r/20220106112214.6987-1-xianwei.zhao@amlogic.com
-rw-r--r-- | arch/arm64/boot/dts/amlogic/Makefile | 1 | ||||
-rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts | 30 | ||||
-rw-r--r-- | arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 99 |
3 files changed, 130 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile index 868d74044072..13f73ca700ef 100644 --- a/arch/arm64/boot/dts/amlogic/Makefile +++ b/arch/arm64/boot/dts/amlogic/Makefile @@ -62,3 +62,4 @@ dtb-$(CONFIG_ARCH_MESON) += meson-sm1-sei610.dtb dtb-$(CONFIG_ARCH_MESON) += meson-sm1-x96-air.dtb dtb-$(CONFIG_ARCH_MESON) += meson-sm1-x96-air-gbit.dtb dtb-$(CONFIG_ARCH_MESON) += meson-a1-ad401.dtb +dtb-$(CONFIG_ARCH_MESON) += meson-s4-s805x2-aq222.dtb diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts new file mode 100644 index 000000000000..8ffbcb2b1ac5 --- /dev/null +++ b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts @@ -0,0 +1,30 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2021 Amlogic, Inc. All rights reserved. + */ + +/dts-v1/; + +#include "meson-s4.dtsi" + +/ { + model = "Amlogic Meson S4 AQ222 Development Board"; + compatible = "amlogic,aq222", "amlogic,s4"; + interrupt-parent = <&gic>; + #address-cells = <2>; + #size-cells = <2>; + + aliases { + serial0 = &uart_B; + }; + + memory@0 { + device_type = "memory"; + reg = <0x0 0x0 0x0 0x40000000>; + }; + +}; + +&uart_B { + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi new file mode 100644 index 000000000000..bf9ae1e1016b --- /dev/null +++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi @@ -0,0 +1,99 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2021 Amlogic, Inc. All rights reserved. + */ + +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/interrupt-controller/arm-gic.h> + +/ { + cpus { + #address-cells = <2>; + #size-cells = <0>; + + cpu0: cpu@0 { + device_type = "cpu"; + compatible = "arm,cortex-a35","arm,armv8"; + reg = <0x0 0x0>; + enable-method = "psci"; + }; + + cpu1: cpu@1 { + device_type = "cpu"; + compatible = "arm,cortex-a35","arm,armv8"; + reg = <0x0 0x1>; + enable-method = "psci"; + }; + + cpu2: cpu@2 { + device_type = "cpu"; + compatible = "arm,cortex-a35","arm,armv8"; + reg = <0x0 0x2>; + enable-method = "psci"; + }; + + cpu3: cpu@3 { + device_type = "cpu"; + compatible = "arm,cortex-a35","arm,armv8"; + reg = <0x0 0x3>; + enable-method = "psci"; + }; + }; + + timer { + compatible = "arm,armv8-timer"; + interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>, + <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>, + <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>, + <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>; + }; + + psci { + compatible = "arm,psci-1.0"; + method = "smc"; + }; + + xtal: xtal-clk { + compatible = "fixed-clock"; + clock-frequency = <24000000>; + clock-output-names = "xtal"; + #clock-cells = <0>; + }; + + soc { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + gic: interrupt-controller@fff01000 { + compatible = "arm,gic-400"; + #interrupt-cells = <3>; + #address-cells = <0>; + interrupt-controller; + reg = <0x0 0xfff01000 0 0x1000>, + <0x0 0xfff02000 0 0x2000>, + <0x0 0xfff04000 0 0x2000>, + <0x0 0xfff06000 0 0x2000>; + interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>; + }; + + apb4: apb4@fe000000 { + compatible = "simple-bus"; + reg = <0x0 0xfe000000 0x0 0x480000>; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0x0 0x0 0x0 0xfe000000 0x0 0x480000>; + + uart_B: serial@7a000 { + compatible = "amlogic,meson-s4-uart", + "amlogic,meson-ao-uart"; + reg = <0x0 0x7a000 0x0 0x18>; + interrupts = <GIC_SPI 169 IRQ_TYPE_EDGE_RISING>; + status = "disabled"; + clocks = <&xtal>, <&xtal>, <&xtal>; + clock-names = "xtal", "pclk", "baud"; + }; + }; + }; +}; |