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SubjectRe: [PATCH 4/4] arm64: dts: add support for A1 based Amlogic AD401
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Hi Jerome,

Thanks for your suggestion.

I will fix them in the next version.


On 2019/9/3 15:30, Jerome Brunet wrote:
> On Tue 03 Sep 2019 at 02:51, Jianxin Pan <jianxin.pan@amlogic.com> wrote:
>
>> Add basic support for the Amlogic A1 based Amlogic AD401 board:
>> which describe components as follows: Reserve Memory, CPU, GIC, IRQ,
>> Timer, UART. It's capable of booting up into the serial console.
>>
>> Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
>> ---
>> arch/arm64/boot/dts/amlogic/Makefile | 1 +
>> arch/arm64/boot/dts/amlogic/meson-a1-ad401.dts | 30 ++++++
>> arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 121 +++++++++++++++++++++++++
>> 3 files changed, 152 insertions(+)
>> create mode 100644 arch/arm64/boot/dts/amlogic/meson-a1-ad401.dts
>> create mode 100644 arch/arm64/boot/dts/amlogic/meson-a1.dtsi
>>
>> diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
>> index edbf128..1720c45 100644
>> --- a/arch/arm64/boot/dts/amlogic/Makefile
>> +++ b/arch/arm64/boot/dts/amlogic/Makefile
>> @@ -36,3 +36,4 @@ dtb-$(CONFIG_ARCH_MESON) += meson-gxm-rbox-pro.dtb
>> dtb-$(CONFIG_ARCH_MESON) += meson-gxm-vega-s96.dtb
>> dtb-$(CONFIG_ARCH_MESON) += meson-sm1-sei610.dtb
>> dtb-$(CONFIG_ARCH_MESON) += meson-sm1-khadas-vim3l.dtb
>> +dtb-$(CONFIG_ARCH_MESON) += meson-a1-ad401.dtb
>> diff --git a/arch/arm64/boot/dts/amlogic/meson-a1-ad401.dts b/arch/arm64/boot/dts/amlogic/meson-a1-ad401.dts
>> new file mode 100644
>> index 00000000..3c05cc0
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/amlogic/meson-a1-ad401.dts
>> @@ -0,0 +1,30 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> +/*
>> + * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
>> + */
>> +
>> +/dts-v1/;
>> +
>> +#include "meson-a1.dtsi"
>> +
>> +/ {
>> + compatible = "amlogic,ad401", "amlogic,a1";
>> + model = "Amlogic Meson A1 AD401 Development Board";
>> +
>> + aliases {
>> + serial0 = &uart_AO_B;
>> + };
>
> Newline here please
>
>> + chosen {
>> + stdout-path = "serial0:115200n8";
>> + };
>
> same
>
>> + memory@0 {
>> + device_type = "memory";
>> + linux,usable-memory = <0x0 0x0 0x0 0x8000000>;
>> + };
>> +};
>> +
>> +&uart_AO_B {
>> + status = "okay";
>> + /*pinctrl-0 = <&uart_ao_a_pins>;*/
>> + /*pinctrl-names = "default";*/
>
> Remove the commented code please
>
>> +};
>> diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
>> new file mode 100644
>> index 00000000..b98d648
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
>> @@ -0,0 +1,121 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> +/*
>> + * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
>> + */
>> +
>> +#include <dt-bindings/interrupt-controller/irq.h>
>> +#include <dt-bindings/interrupt-controller/arm-gic.h>
>> +
>> +/ {
>> + compatible = "amlogic,a1";
>> +
>> + interrupt-parent = <&gic>;
>> + #address-cells = <2>;
>> + #size-cells = <2>;
>> +
>> + cpus {
>> + #address-cells = <0x2>;
>> + #size-cells = <0x0>;
>> +
>> + cpu0: cpu@0 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a35";
>> + reg = <0x0 0x0>;
>> + enable-method = "psci";
>> + next-level-cache = <&l2>;
>> + };
>> +
>> + cpu1: cpu@1 {
>> + device_type = "cpu";
>> + compatible = "arm,cortex-a35";
>> + reg = <0x0 0x1>;
>> + enable-method = "psci";
>> + next-level-cache = <&l2>;
>> + };
>> +
>> + l2: l2-cache0 {
>> + compatible = "cache";
>> + };
>> + };
>
> New line here please
>
> With this minor comments adressed, looks good.
>
> Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
>
>> + psci {
>> + compatible = "arm,psci-1.0";
>> + method = "smc";
>> + };
>> +
>> + reserved-memory {
>> + #address-cells = <2>;
>> + #size-cells = <2>;
>> + ranges;
>> +
>> + linux,cma {
>> + compatible = "shared-dma-pool";
>> + reusable;
>> + size = <0x0 0x800000>;
>> + alignment = <0x0 0x400000>;
>> + linux,cma-default;
>> + };
>> + };
>> +
>> + sm: secure-monitor {
>> + compatible = "amlogic,meson-gxbb-sm";
>> + };
>> +
>> + soc {
>> + compatible = "simple-bus";
>> + #address-cells = <2>;
>> + #size-cells = <2>;
>> + ranges;
>> +
>> + uart_AO: serial@fe001c00 {
>> + compatible = "amlogic,meson-gx-uart",
>> + "amlogic,meson-ao-uart";
>> + reg = <0x0 0xfe001c00 0x0 0x18>;
>> + interrupts = <GIC_SPI 25 IRQ_TYPE_EDGE_RISING>;
>> + clocks = <&xtal>, <&xtal>, <&xtal>;
>> + clock-names = "xtal", "pclk", "baud";
>> + status = "disabled";
>> + };
>> +
>> + uart_AO_B: serial@fe002000 {
>> + compatible = "amlogic,meson-gx-uart",
>> + "amlogic,meson-ao-uart";
>> + reg = <0x0 0xfe002000 0x0 0x18>;
>> + interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
>> + clocks = <&xtal>, <&xtal>, <&xtal>;
>> + clock-names = "xtal", "pclk", "baud";
>> + status = "disabled";
>> + };
>> +
>> + gic: interrupt-controller@ff901000 {
>> + compatible = "arm,gic-400";
>> + reg = <0x0 0xff901000 0x0 0x1000>,
>> + <0x0 0xff902000 0x0 0x2000>,
>> + <0x0 0xff904000 0x0 0x2000>,
>> + <0x0 0xff906000 0x0 0x2000>;
>> + interrupt-controller;
>> + interrupts = <GIC_PPI 9
>> + (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>;
>> + #interrupt-cells = <3>;
>> + #address-cells = <0>;
>> + };
>> + };
>> +
>> + timer {
>> + compatible = "arm,armv8-timer";
>> + interrupts = <GIC_PPI 13
>> + (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
>> + <GIC_PPI 14
>> + (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
>> + <GIC_PPI 11
>> + (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>,
>> + <GIC_PPI 10
>> + (GIC_CPU_MASK_RAW(0xff) | IRQ_TYPE_LEVEL_LOW)>;
>> + };
>> +
>> + xtal: xtal-clk {
>> + compatible = "fixed-clock";
>> + clock-frequency = <24000000>;
>> + clock-output-names = "xtal";
>> + #clock-cells = <0>;
>> + };
>> +};
>> --
>> 2.7.4
>
> .
>

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