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SubjectRe: [PATCH v3 6/7] arm64: allwinner: h6: add the basical Allwinner H6 DTSI file
On Fri, Feb 23, 2018 at 08:35:54PM +0800, Icenowy Zheng wrote:
> Allwinner H6 is a new SoC with Cortex-A53 cores from Allwinner, with its
> memory map fully reworked and some high-speed peripherals (PCIe, USB
> 3.0) introduced.
>
> This commit adds the basical DTSI file of it, including the clock
> support and UART support.
>
> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
> Reviewed-by: Andre Przywara <andre.przywara@arm.com>
> ---
> Changes in v3:
> - SPDX license identifier fix.
>
> Changes in v2:
> - Add APB1 clock as PIO's APB clock.
> - Switched to SPDX license identifier.
>
> arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 177 +++++++++++++++++++++++++++
> 1 file changed, 177 insertions(+)
> create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
>
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> new file mode 100644
> index 000000000000..4a6236bd9778
> --- /dev/null
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
> @@ -0,0 +1,177 @@
> +// SPDX-License-Identifier: (GPL-2.0+ or MIT)
> +/*
> + * Copyright (C) 2017 Icenowy Zheng <icenowy@aosc.io>
> + */
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/clock/sun50i-h6-ccu.h>
> +#include <dt-bindings/reset/sun50i-h6-ccu.h>
> +
> +/ {
> + interrupt-parent = <&gic>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + cpus {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + cpu0: cpu@0 {
> + compatible = "arm,cortex-a53", "arm,armv8";
> + device_type = "cpu";
> + reg = <0>;
> + enable-method = "psci";
> + };
> +
> + cpu1: cpu@1 {
> + compatible = "arm,cortex-a53", "arm,armv8";
> + device_type = "cpu";
> + reg = <1>;
> + enable-method = "psci";
> + };
> +
> + cpu2: cpu@2 {
> + compatible = "arm,cortex-a53", "arm,armv8";
> + device_type = "cpu";
> + reg = <2>;
> + enable-method = "psci";
> + };
> +
> + cpu3: cpu@3 {
> + compatible = "arm,cortex-a53", "arm,armv8";
> + device_type = "cpu";
> + reg = <3>;
> + enable-method = "psci";
> + };
> + };
> +
> + iosc: internal-osc-clk {
> + #clock-cells = <0>;
> + compatible = "fixed-clock";
> + clock-frequency = <16000000>;
> + clock-accuracy = <300000000>;
> + clock-output-names = "iosc";
> + };

You're not using it anywhere

> + osc24M: osc24M_clk {
> + #clock-cells = <0>;
> + compatible = "fixed-clock";
> + clock-frequency = <24000000>;
> + clock-output-names = "osc24M";
> + };
> +
> + osc32k: osc32k_clk {
> + #clock-cells = <0>;
> + compatible = "fixed-clock";
> + clock-frequency = <32768>;
> + clock-output-names = "osc32k";
> + };
> +
> + psci {
> + compatible = "arm,psci-0.2";
> + method = "smc";
> + };

Is it needed? The bootloader should fill it with whatever version it
has, shouldn't it?

Thanks!
Maxime

--
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com
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