linux-kernel - Re: [PATCH 15/17] arm64: allwinner: dts: add DTSI file for R329 SoC

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Date:   Wed, 18 Aug 2021 11:01:39 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Icenowy Zheng <icenowy@...eed.com>
Cc:     Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Andre Przywara <andre.przywara@....com>,
        Samuel Holland <samuel@...lland.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 15/17] arm64: allwinner: dts: add DTSI file for R329 SoC

On Mon, Aug 02, 2021 at 02:22:10PM +0800, Icenowy Zheng wrote:
> Allwinner R329 is a new SoC focused on smart audio devices.
> 
> Add a DTSI file for it.
> 
> Signed-off-by: Icenowy Zheng <icenowy@...eed.com>
> ---
>  .../arm64/boot/dts/allwinner/sun50i-r329.dtsi | 244 ++++++++++++++++++
>  1 file changed, 244 insertions(+)
>  create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-r329.dtsi
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-r329.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-r329.dtsi
> new file mode 100644
> index 000000000000..bfefa2b734b0
> --- /dev/null
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-r329.dtsi
> @@ -0,0 +1,244 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +// Copyright (c) 2021 Sipeed
> +
> +#include <dt-bindings/interrupt-controller/arm-gic.h>
> +#include <dt-bindings/clock/sun50i-r329-ccu.h>
> +#include <dt-bindings/reset/sun50i-r329-ccu.h>
> +#include <dt-bindings/clock/sun50i-r329-r-ccu.h>
> +#include <dt-bindings/reset/sun50i-r329-r-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";
> +			device_type = "cpu";
> +			reg = <0>;
> +			enable-method = "psci";
> +		};
> +
> +		cpu1: cpu@1 {
> +			compatible = "arm,cortex-a53";
> +			device_type = "cpu";
> +			reg = <1>;
> +			enable-method = "psci";
> +		};
> +	};
> +
> +	osc24M: osc24M_clk {
> +		#clock-cells = <0>;
> +		compatible = "fixed-clock";
> +		clock-frequency = <24000000>;
> +		clock-output-names = "osc24M";
> +	};
> +
> +	psci {
> +		compatible = "arm,psci-0.2";
> +		method = "smc";
> +	};
> +
> +	timer {
> +		compatible = "arm,armv8-timer";
> +		arm,no-tick-in-suspend;
> +		interrupts = <GIC_PPI 13
> +			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>,
> +			     <GIC_PPI 14
> +			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>,
> +			     <GIC_PPI 11
> +			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>,
> +			     <GIC_PPI 10
> +			(GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
> +	};
> +
> +	soc {
> +		compatible = "simple-bus";
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		pio: pinctrl@...0400 {
> +			compatible = "allwinner,sun50i-r329-pinctrl";
> +			reg = <0x02000400 0x400>;
> +			interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&ccu CLK_APB1>, <&osc24M>, <&rtc 0>;
> +			clock-names = "apb", "hosc", "losc";
> +			gpio-controller;
> +			#gpio-cells = <3>;
> +			interrupt-controller;
> +			#interrupt-cells = <3>;
> +
> +			uart0_pb_pins: uart0-pb-pins {
> +				pins = "PB4", "PB5";
> +				function = "uart0";
> +			};
> +
> +			mmc0_pf_pins: mmc0-pf-pins {
> +				pins = "PF0", "PF1", "PF2",
> +				       "PF3", "PF4", "PF5";
> +				function = "mmc0";
> +			};
> +
> +			mmc1_clk_pg0: mmc1-clk-pg0 {
> +				pins = "PG0";
> +				function = "mmc1_clk";
> +			};

Argh, of course it was bound to happen :)

Make sure your DT pass validation though, all your mmc1 node names will report errors.

> +
> +			mmc1_cmd_pg1: mmc1-clk-pg1 {

s/clk/cmd/ ?

> +				pins = "PG1";
> +				function = "mmc1_cmd";
> +			};
> +
> +			mmc1_d0_pg2: mmc1-clk-pg2 {

s/clk/d0/

> +				pins = "PG2";
> +				function = "mmc1_d0";
> +			};
> +
> +			mmc1_d1_pg3: mmc1-clk-pg3 {

s/clk/d1/

> +				pins = "PG3";
> +				function = "mmc1_d1";
> +			};
> +
> +			mmc1_d2_pg4: mmc1-clk-pg4 {

s/clk/d2/

> +				pins = "PG4";
> +				function = "mmc1_d2";
> +			};
> +
> +			mmc1_d3_pg5: mmc1-clk-pg5 {

s/clk/d3/

> +				pins = "PG5";
> +				function = "mmc1_d3";
> +			};
> +		};
> +
> +		ccu: clock@...1000 {
> +			compatible = "allwinner,sun50i-r329-ccu";
> +			reg = <0x02001000 0x1000>;
> +			clocks = <&osc24M>, <&rtc 0>, <&rtc 2>;
> +			clock-names = "hosc", "losc", "iosc";

Do we have a clock tree for the RTC? Is it the same than the H616?

Maxime

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