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

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Message-ID: <1846b26773eb48cc970bba1524e9d2a7a612a2e3.1750156323.git.benoit.monin@bootlin.com>
Date: Tue, 17 Jun 2025 15:25:55 +0200
From: Benoît Monin <benoit.monin@...tlin.com>
To: 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>,
	Gregory CLEMENT <gregory.clement@...tlin.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: [PATCH 5/6] MIPS: mobileye: dts: eyeq5: add the emmc controller

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>
---
 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>;
+		};
 	};
 };