linux-kernel - Re: [PATCH v4 2/2] arm64: dts: rockchip: Add rk3576 evb2 board

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Message-ID: <07082578-f56a-4ad2-9ea0-a4ef20a86cfe@rock-chips.com>
Date: Wed, 21 Jan 2026 10:09:35 +0800
From: Shawn Lin <shawn.lin@...k-chips.com>
To: Chaoyi Chen <kernel@...kyi.com>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>,
 Quentin Schulz <quentin.schulz@...rry.de>, Jonas Karlman <jonas@...boo.se>,
 Chaoyi Chen <chaoyi.chen@...k-chips.com>, Hsun Lai <i@...insx.cn>,
 John Clark <inindev@...il.com>, Jimmy Hon <honyuenkwun@...il.com>,
 Dragan Simic <dsimic@...jaro.org>,
 Michael Riesch <michael.riesch@...labora.com>,
 Peter Robinson <pbrobinson@...il.com>, Alexey Charkov <alchark@...il.com>,
 Sebastian Reichel <sebastian.reichel@...labora.com>,
 Andy Yan <andy.yan@...k-chips.com>
Cc: shawn.lin@...k-chips.com, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/2] arm64: dts: rockchip: Add rk3576 evb2 board

在 2026/01/21 星期三 9:53, Chaoyi Chen 写道:
> From: Chaoyi Chen <chaoyi.chen@...k-chips.com>
> 
> General features for rk3576 evb2 board:
>      - Rockchip RK3576
>      - LPDDR4/4X
>      - eMMC5.1
>      - RK806-2x2pcs + DiscretePower
>      - 1x HDMI2.1 TX / HDMI2.0 RX
>      - 1x full size DP1.4 TX (Only 2 Lanes)
>      - 2x 10/100/1000M Ethernet
>      - 5x SATA3.0 7Pin Slot
>      - 2x USB3.2 Gen1 Host
>      - 3x USB2.0 Host
>      - WIFI/BT
>      - ...
> 
> Tested with eMMC/SDMMC/HDMI/USB/Ethernet/WIFI/BT module.
> 
> Signed-off-by: Chaoyi Chen <chaoyi.chen@...k-chips.com>
> Reviewed-by: Alexey Charkov <alchark@...il.com>
> ---

---8<----

> +
> +&sdio {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	cap-sdio-irq;
> +	disable-wp;

disable-wp is not used for SDIO case, could be removed.


> +	keep-power-in-suspend;
> +	max-frequency = <150000000>;
> +	mmc-pwrseq = <&sdio_pwrseq>;
> +	no-sd;
> +	no-mmc;
> +	non-removable;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&sdmmc1m0_bus4 &sdmmc1m0_clk &sdmmc1m0_cmd>;
> +	sd-uhs-sdr104;
> +	status = "okay";
> +
> +	brcmf: wifi@1 {
> +		compatible = "brcm,bcm4329-fmac";
> +		reg = <1>;
> +		interrupt-parent = <&gpio0>;
> +		interrupts = <RK_PB0 IRQ_TYPE_LEVEL_HIGH>;
> +		interrupt-names = "host-wake";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&wifi_host_wake>;
> +	};
> +};
> +
> +&sdhci {
> +	bus-width = <8>;
> +	full-pwr-cycle-in-suspend;
> +	mmc-hs400-1_8v;
> +	mmc-hs400-enhanced-strobe;
> +	no-sdio;
> +	no-sd;
> +	non-removable;
> +	status = "okay";
> +};
> +
> +&sdmmc {
> +	bus-width = <4>;
> +	cap-sd-highspeed;
> +	cd-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
> +	disable-wp;
> +	no-sdio;
> +	no-mmc;
> +	sd-uhs-sdr104;
> +	vqmmc-supply = <&vccio_sd_s0>;

Should use vmmc-supply to contrl the power, the same as EVB1[1].

[1] 
https://lore.kernel.org/linux-rockchip/1768524932-163929-5-git-send-email-shawn.lin@rock-chips.com/T/#u

> +	status = "okay";
> +};
> +
> +&u2phy0 {
> +	status = "okay";
> +};
> +