From: Hsin-Yi Wang <hsinyi@chromium.org>
To: Tudor Ambarus <tudor.ambarus@linaro.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Bjorn Andersson <andersson@kernel.org>
Cc: Pratyush Yadav <pratyush@kernel.org>,
Michael Walle <michael@walle.cc>,
"Miquel Raynal )" <miquel.raynal@bootlin.com>,
"Richard Weinberger )" <richard@nod.at>,
"Vignesh Raghavendra )" <vigneshr@ti.com>,
Rob Herring <robh+dt@kernel.org>,
linux-mtd@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org,
cros-qcom-dts-watchers@chromium.org,
Andy Gross <agross@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>
Subject: [PATCH v2,2/2] arm64: dts: mediatek: mt8183: set bus rx width to disable quad mode
Date: Wed, 16 Aug 2023 18:38:33 +0800 [thread overview]
Message-ID: <20230816104245.2676965-2-hsinyi@chromium.org> (raw)
In-Reply-To: <20230816104245.2676965-1-hsinyi@chromium.org>
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@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@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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next prev parent reply other threads:[~2023-08-16 10:43 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-16 10:38 [PATCH v2,1/2] mtd: spi-nor: giga: gd25lq64c: Disable quad mode according to bus width Hsin-Yi Wang
2023-08-16 10:38 ` Hsin-Yi Wang [this message]
2023-08-16 10:47 ` [PATCH v2,2/2] arm64: dts: mediatek: mt8183: set bus rx width to disable quad mode Hsin-Yi Wang
2023-08-16 17:03 ` Doug Anderson
2023-08-16 10:46 ` [PATCH v2,1/2] mtd: spi-nor: giga: gd25lq64c: Disable quad mode according to bus width Hsin-Yi Wang
2023-08-16 11:51 ` Michael Walle
2023-08-16 12:16 ` Tudor Ambarus
2023-08-16 12:22 ` Michael Walle
2023-08-16 12:34 ` Tudor Ambarus
2023-08-16 12:37 ` Michael Walle
2023-08-16 18:24 ` Hsin-Yi Wang
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