linux-kernel - [PATCH 1/1] arm64: dts: rockchip: increase spi-max-frequency of nor flash for roc-rk3399-pc

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Message-Id: <20221123094827.250657-2-abbaraju.manojsai@amarulasolutions.com>
Date:   Wed, 23 Nov 2022 15:18:27 +0530
From:   Manoj Sai <abbaraju.manojsai@...rulasolutions.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     Robin Murphy <robin.murphy@....com>,
        Chris Morgan <macromorgan@...mail.com>,
        Markus Reichl <m.reichl@...etechno.de>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-amarula@...rulasolutions.com, Da Xue <da.xue@...retech.co>,
        dsx724 <da@...sconfused.com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Suniel Mahesh <sunil@...rulasolutions.com>,
        Manoj Sai <abbaraju.manojsai@...rulasolutions.com>
Subject: [PATCH 1/1] arm64: dts: rockchip: increase spi-max-frequency of nor flash for roc-rk3399-pc

Increase the spi-max-frequency of nor flash from 10Mhz to 30Mhz,this improves the
flash raw write speed by 0.9 MB/s to 1.6MB/s and the time taken to write is
get reduced from 36 seconds to 20 seconds.

Signed-off-by: Manoj Sai <abbaraju.manojsai@...rulasolutions.com>
Signed-off-by: Da Xue <da.xue@...retech.co>
Signed-off-by: dsx724 <da@...sconfused.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
index 2f4b1b2e3ac7..8fd808a0df85 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-roc-pc.dtsi
@@ -735,7 +735,7 @@ &spi1 {
 	flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
-		spi-max-frequency = <10000000>;
+		spi-max-frequency = <30000000>;
 	};
 };
 
-- 
2.25.1