[PATCH 0/6] Add MMC support for Mobileye EyeQ5 and EyeQ6 SoCs

From: Benoît Monin
Date: Tue Jun 17 2025 - 09:29:11 EST


The MMC/SDHCI controller found in Mobileye EyeQ5 and EyeQ6 SoCs is
based on Cadence cdns sd4hc IP. It supports up to HS400HS mode. The
only peculiarity of the hardware is that it needs the preset value
quirk to configure the clock properly at speed slower than HS200.

This patchset adds a compatible device tree binding to cdns sdhci for
mobileye then uses it in the sdhci-cadence driver.

It also adds an emmc entry in the dtsi of each SoC and the config
options in each defconfig to allow using an eMMC for the rootfs.

Benoît Monin (6):
dt-bindings: mmc: cdns: add Mobileye EyeQ MMC/SDHCI controller
mmc: sdhci-cadence: add Mobileye eyeQ support
MIPS: mobileye: dts: eyeq6h: add the emmc controller
MIPS: eyeq6_defconfig: add cadence MMC/SDHCI driver
MIPS: mobileye: dts: eyeq5: add the emmc controller
MIPS: eyeq5_defconfig: add cadence MMC/SDHCI driver

.../devicetree/bindings/mmc/cdns,sdhci.yaml | 1 +
arch/mips/boot/dts/mobileye/eyeq5.dtsi | 22 +++++++++++++++++++
arch/mips/boot/dts/mobileye/eyeq6h.dtsi | 22 +++++++++++++++++++
arch/mips/configs/eyeq5_defconfig | 2 ++
arch/mips/configs/eyeq6_defconfig | 2 ++
drivers/mmc/host/sdhci-cadence.c | 11 ++++++++++
6 files changed, 60 insertions(+)