Add MMC support for Mobileye EyeQ5 and EyeQ6 SoCs

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

Posted by Benoît Monin 5 months, 4 weeks ago

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(+)

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

Posted by Ulf Hansson 5 months, 3 weeks ago

On Tue, 17 Jun 2025 at 15:26, Benoît Monin <benoit.monin@bootlin.com> wrote:
>
> 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(+)
>

Patch1 and patch2 applied for next, thanks!

Kind regards
Uffe

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

Posted by Thomas Bogendoerfer 5 months, 2 weeks ago

On Tue, Jun 17, 2025 at 03:25:50PM +0200, Benoît Monin wrote:
> 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(+)

applied patches 3-6 to mips-next.

Thomas.

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