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

From: Benoît Monin
Date: Tue Jun 17 2025 - 09:36:15 EST


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@xxxxxxxxxxx>
---
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@2200000 {
+ 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>;
+ };
};
};