Re: [PATCH v2] arm64: dts: renesas: rzt2h-n2h-evk: Enable xSPI nodes

[Geert Uytterhoeven]

On Wed, 27 May 2026 at 22:24, Prabhakar <prabhakar.csengg@xxxxxxxxx> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> Enable the xSPI0 and xSPI1 controllers on the RZ/T2H N2H EVK board.
>
> Configure the xSPI0 controller interface to 1-bit (x1) mode, even though
> the connected MX25LW51245 octal flash device supports octal mode. Add a
> corresponding inline hardware comment detailing this restriction;
> operating in octal mode causes the BootROM to fail loading the first-stage
> bootloader following a Watchdog Timer (WDT) reset.
>
> Configure the xSPI1 controller interface connected to the AT25SF128A
> flash device for 4-bit (x4) mode to utilize all available data lines.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> ---
> v1->v2:
> - Dropped CKN pin
> - Added ECS pin configuration for T2H EVK
> - Added Switch settings for both T2H and N2H EVKs
> - Fixed partition address for xSPI0 flash device
> - Added spi-max-frequency property for both xSPI controllers
> - Dropped grouping the pinctrl into subnodes for XSPI1 and
>   for XSPI0 merged the ctrl and data pins into a single group

Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
i.e. will queue in renesas-devel for v7.2.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds