linux-kernel - Re: [PATCH 5/6] MIPS: mobileye: dts: eyeq5: add the emmc controller

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Message-ID: <87bjq5iswc.fsf@BLaptop.bootlin.com>
Date: Mon, 30 Jun 2025 09:35:15 +0200
From: Gregory CLEMENT <gregory.clement@...tlin.com>
To: Benoît Monin <benoit.monin@...tlin.com>, Ulf Hansson
 <ulf.hansson@...aro.org>, Rob Herring <robh@...nel.org>, Krzysztof
 Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
 Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>, Théo Lebrun
 <theo.lebrun@...tlin.com>, Thomas Bogendoerfer
 <tsbogend@...ha.franken.de>, Adrian Hunter <adrian.hunter@...el.com>,
 Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc: Benoît Monin <benoit.monin@...tlin.com>,
 linux-mmc@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-mips@...r.kernel.org, Thomas Petazzoni
 <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH 5/6] MIPS: mobileye: dts: eyeq5: add the emmc controller

Hello Benoît,

> Add the MMC/SDHCI controller found in the eyeQ5 SoC. It is based on the
> cadence sd4hc controller and support modes up to HS400 enhanced strobe.
>
> Signed-off-by: Benoît Monin <benoit.monin@...tlin.com>

The binding being accepted,

Acked-by: Gregory CLEMENT <gregory.clement@...tlin.com>

Thanks,

Gregory


> ---
>  arch/mips/boot/dts/mobileye/eyeq5.dtsi | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>
> diff --git a/arch/mips/boot/dts/mobileye/eyeq5.dtsi b/arch/mips/boot/dts/mobileye/eyeq5.dtsi
> index a84e6e720619..e15d9ce0bdf4 100644
> --- a/arch/mips/boot/dts/mobileye/eyeq5.dtsi
> +++ b/arch/mips/boot/dts/mobileye/eyeq5.dtsi
> @@ -178,6 +178,28 @@ timer {
>  				clocks = <&olb EQ5C_CPU_CORE0>;
>  			};
>  		};
> +
> +		emmc: sdhci@...0000 {
> +			compatible = "mobileye,eyeq-sd4hc", "cdns,sd4hc";
> +			reg = <0 0x2200000 0x0 0x1000>;
> +			interrupt-parent = <&gic>;
> +			interrupts = <GIC_SHARED 10 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&olb EQ5C_PER_EMMC>;
> +			bus-width = <8>;
> +			max-frequency = <200000000>;
> +			mmc-ddr-1_8v;
> +			sd-uhs-ddr50;
> +			mmc-hs200-1_8v;
> +			mmc-hs400-1_8v;
> +			mmc-hs400-enhanced-strobe;
> +
> +			cdns,phy-input-delay-legacy = <4>;
> +			cdns,phy-input-delay-mmc-highspeed = <2>;
> +			cdns,phy-input-delay-mmc-ddr = <3>;
> +			cdns,phy-dll-delay-sdclk = <32>;
> +			cdns,phy-dll-delay-sdclk-hsmmc = <32>;
> +			cdns,phy-dll-delay-strobe = <32>;
> +		};
>  	};
>  };
>  

-- 
Grégory CLEMENT, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com