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 3/4] arm64: dts: mediatek: mt8183: disable quad mode for spi nor
Date: Tue, 15 Aug 2023 23:31:54 +0800 [thread overview]
Message-ID: <20230815154412.713846-4-hsinyi@chromium.org> (raw)
In-Reply-To: <20230815154412.713846-1-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..8e4761e2b8ff4 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>;
+ disable-quad-mode;
};
};
--
2.41.0.694.ge786442a9b-goog
next prev parent reply other threads:[~2023-08-15 15:45 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-15 15:31 [PATCH 0/4] Add a property to override the quad mode Hsin-Yi Wang
2023-08-15 15:31 ` [PATCH 1/4] dt-bindings: mtd: jedec,spi-nor: Add disable-quad-mode property Hsin-Yi Wang
2023-08-15 15:31 ` [PATCH 2/4] mtd: spi-nor: sfdp: read " Hsin-Yi Wang
2023-08-15 15:31 ` Hsin-Yi Wang [this message]
2023-08-16 11:17 ` [PATCH 3/4] arm64: dts: mediatek: mt8183: disable quad mode for spi nor Eugen Hristev
2023-08-15 15:31 ` [PATCH 4/4] arm64: dts: qcom: sc7180: " Hsin-Yi Wang
2023-08-15 19:32 ` Doug Anderson
2023-08-15 15:59 ` [PATCH 0/4] Add a property to override the quad mode Michael Walle
2023-08-15 17:21 ` Hsin-Yi Wang
2023-08-15 19:19 ` Krzysztof Kozlowski
2023-08-16 10:48 ` Hsin-Yi Wang
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