[PATCH v2,2/2] arm64: dts: mediatek: mt8183: set bus rx width to disable quad mode
Hsin-Yi Wang
hsinyi at chromium.org
Wed Aug 16 03:47:20 PDT 2023
On Wed, Aug 16, 2023 at 6:42 PM Hsin-Yi Wang <hsinyi at chromium.org> wrote:
>
> Some of the SKUs are using gigadevice gd25lq64c flash chip. The chip
> default enables quad mode, which results in the write protect pin set to
> IO pin. In mt8183 kukui, we won't use quad enable for all SKUs, so apply
> the property to disable spi nor's quad mode.
>
> Signed-off-by: Hsin-Yi Wang <hsinyi at chromium.org>
> ---
change log:
v1->v2: use existing property.
v1 link: https://lore.kernel.org/lkml/20230815154412.713846-1-hsinyi@chromium.org/
---
> arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
> index 6ce16a265e053..ef472b522f2e7 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8183-kukui.dtsi
> @@ -877,6 +877,7 @@ w25q64dw: flash at 0 {
> compatible = "winbond,w25q64dw", "jedec,spi-nor";
> reg = <0>;
> spi-max-frequency = <25000000>;
> + spi-rx-bus-width = <2>;
> };
> };
>
> --
> 2.41.0.694.ge786442a9b-goog
>
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