linux-kernel - Re: [PATCH 5/5] arm64: dts: rockchip: Add rock-5a board

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Date:   Wed, 9 Nov 2022 20:01:09 +0800
From:   ZHANG Yuntian <yt@...xa.com>
To:     Michael Riesch <michael.riesch@...fvision.net>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     tom@...xa.com, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-rockchip@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, kernel@...labora.com,
        Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: Re: [PATCH 5/5] arm64: dts: rockchip: Add rock-5a board

On 11/9/22 17:16, Michael Riesch wrote:
> Hi Sebastian,
> 
> On 11/8/22 18:15, Sebastian Reichel wrote:
>> Add board file for the RK3588s Rock 5A board. While the hardware
>> offers plenty of peripherals and connectivity this basic implementation
>> just handles things required to access eMMC, UART and Ethernet (i.e.
>> enough to successfully boot Linux).
>>
>> Tested-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
>> Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
>> ---
>>   .../devicetree/bindings/arm/rockchip.yaml     |  5 ++
>>   arch/arm64/boot/dts/rockchip/Makefile         |  1 +
>>   .../boot/dts/rockchip/rk3588s-rock-5a.dts     | 63 +++++++++++++++++++
>>   3 files changed, 69 insertions(+)
>>   create mode 100644 arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
>>
>> diff --git a/Documentation/devicetree/bindings/arm/rockchip.yaml b/Documentation/devicetree/bindings/arm/rockchip.yaml
>> index 4230881371fa..6bff4c42d815 100644
>> --- a/Documentation/devicetree/bindings/arm/rockchip.yaml
>> +++ b/Documentation/devicetree/bindings/arm/rockchip.yaml
>> @@ -744,6 +744,11 @@ properties:
>>             - const: rockchip,rk3588-evb1-v10
>>             - const: rockchip,rk3588
>>   
>> +      - description: Radxa Rock 5A

Please change to "Radxa ROCK 5 Model A". This is the full product name 
per our naming convention.

>> +        items:
>> +          - const: radxa,rock-5a
> 
> FYI: I was wondering what the convention was when I submitted the
> rk3568-rock-3a.dts. There are boards with the compatible
> "radxa,rockpi4a", "radxa,rockpi4b", "radxa,rockpis", but also the
> "radxa,rock-4c-plus". I went with the slight majority and named it
> "radxa,rock3a". Maybe you would like to consider "radxa,rock5a" in order
> to follow suit.

Currently we keep the compatible field to match the file name excluding 
the SoC prefix, since that seems to be what other boards are doing (ex. 
odroid-go2, nanopi-r2s, orion-r68-meta, etc). I'll say `rock-5a` looks 
good to me.

> 
> Best regards,
> Michael
> 
>> +          - const: rockchip,rk3588s
>> +
>>   additionalProperties: true
>>   
>>   ...
>> diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
>> index 12ed53de11eb..31fa55750a0f 100644
>> --- a/arch/arm64/boot/dts/rockchip/Makefile
>> +++ b/arch/arm64/boot/dts/rockchip/Makefile
>> @@ -73,3 +73,4 @@ dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-bpi-r2-pro.dtb
>>   dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-evb1-v10.dtb
>>   dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3568-rock-3a.dtb
>>   dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588-evb1-v10.dtb
>> +dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3588s-rock-5a.dtb
>> diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
>> new file mode 100644
>> index 000000000000..25387a000341
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
>> @@ -0,0 +1,63 @@
>> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
>> +
>> +/dts-v1/;
>> +
>> +#include <dt-bindings/pinctrl/rockchip.h>
>> +#include <dt-bindings/gpio/gpio.h>
>> +#include "rk3588s.dtsi"
>> +
>> +/ {
>> +	model = "Radxa Rock 5A Board";
>> +	compatible = "radxa,rock-5a", "rockchip,rk3588s";
>> +
>> +	chosen {
>> +		stdout-path = "serial2:1500000n8";
>> +	};
>> +};
>> +
>> +&gmac1 {
>> +	phy-mode = "rgmii-rxid";
>> +	clock_in_out = "output";
>> +
>> +	snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
>> +	snps,reset-active-low;
>> +	/* Reset time is 20ms, 100ms for rtl8211f */
>> +	snps,reset-delays-us = <0 20000 100000>;
>> +
>> +	pinctrl-names = "default";
>> +	pinctrl-0 = <&gmac1_miim
>> +		     &gmac1_tx_bus2
>> +		     &gmac1_rx_bus2
>> +		     &gmac1_rgmii_clk
>> +		     &gmac1_rgmii_bus>;
>> +
>> +	tx_delay = <0x3a>;
>> +	rx_delay = <0x3e>;
>> +
>> +	phy-handle = <&rgmii_phy1>;
>> +	status = "okay";
>> +};
>> +
>> +&mdio1 {
>> +	rgmii_phy1: phy@1 {
>> +		compatible = "ethernet-phy-ieee802.3-c22";
>> +		reg = <0x1>;
>> +		#phy-cells = <0>;
>> +	};
>> +};
>> +
>> +&sdhci {
>> +	bus-width = <8>;
>> +	no-sdio;
>> +	no-sd;
>> +	non-removable;
>> +	max-frequency = <200000000>;
>> +	mmc-hs400-1_8v;
>> +	mmc-hs400-enhanced-strobe;
>> +	status = "okay";
>> +};
>> +
>> +&uart2 {
>> +	pinctrl-0 = <&uart2m0_xfer>;
>> +	status = "okay";
>> +};
> 
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip
> 

-- 
Best regards,

ZHANG Yuntian

Operating System Developer
Radxa Computer Co., Ltd
Shenzhen, China

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