From: Biju Das <biju.das.jz@bp.renesas.com>

Add the max-frequency property set to 133333333 Hz (133.33 MHz) to both
SDHI0 and SDHI1 MMC controller nodes in the RZ/G2{L,LC,UL}/RZ/V2L
device tree.

This change results in approximately 33% performance improvement as
it sets the SD clk to 100 MHz instead of the max 133 MHz.

Biju Das (3):
  arm64: dts: renesas: r9a07g043: Add max-frequency to SDHI nodes
  arm64: dts: renesas: r9a07g044: Add max-frequency to SDHI nodes
  arm64: dts: renesas: r9a07g054: Add max-frequency to SDHI nodes

 arch/arm64/boot/dts/renesas/r9a07g043.dtsi | 2 ++
 arch/arm64/boot/dts/renesas/r9a07g044.dtsi | 2 ++
 arch/arm64/boot/dts/renesas/r9a07g054.dtsi | 2 ++
 3 files changed, 6 insertions(+)

-- 
2.43.0

Hi Biju,

On Wed, 20 May 2026 at 13:51, Biju <biju.das.au@gmail.com> wrote:
> From: Biju Das <biju.das.jz@bp.renesas.com>
>
> Add the max-frequency property set to 133333333 Hz (133.33 MHz) to both
> SDHI0 and SDHI1 MMC controller nodes in the RZ/G2{L,LC,UL}/RZ/V2L
> device tree.
>
> This change results in approximately 33% performance improvement as
> it sets the SD clk to 100 MHz instead of the max 133 MHz.

I guess it is the other way around? ;-)

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds