linux-kernel - [PATCH v7 10/11] ARM: dts: aspeed-g4: Set spi-max-frequency for all flashes

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Date:   Mon,  9 May 2022 19:56:15 +0200
From:   Cédric Le Goater <clg@...d.org>
To:     linux-spi@...r.kernel.org, linux-mtd@...ts.infradead.org
Cc:     Mark Brown <broonie@...nel.org>,
        Tudor Ambarus <tudor.ambarus@...rochip.com>,
        Pratyush Yadav <p.yadav@...com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-aspeed@...ts.ozlabs.org, Joel Stanley <joel@....id.au>,
        Andrew Jeffery <andrew@...id.au>,
        Chin-Ting Kuo <chin-ting_kuo@...eedtech.com>,
        devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Tao Ren <rentao.bupt@...il.com>,
        Cédric Le Goater <clg@...d.org>,
        Jae Hyun Yoo <quic_jaehyoo@...cinc.com>
Subject: [PATCH v7 10/11] ARM: dts: aspeed-g4: Set spi-max-frequency for all flashes

From: Tao Ren <rentao.bupt@...il.com>

Set "spi-max-frequency" to 50 MHz for all the flashes under the FMC
controller to ensure the clock frequency is calculated correctly.

Suggested-by: Cédric Le Goater <clg@...d.org>
Tested-by: Jae Hyun Yoo <quic_jaehyoo@...cinc.com>
Signed-off-by: Tao Ren <rentao.bupt@...il.com>
Signed-off-by: Cédric Le Goater <clg@...d.org>
---
 arch/arm/boot/dts/aspeed-g4.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi
index 1c6354cec9f2..530491ae5eb2 100644
--- a/arch/arm/boot/dts/aspeed-g4.dtsi
+++ b/arch/arm/boot/dts/aspeed-g4.dtsi
@@ -72,24 +72,28 @@ flash@1 {
 				reg = < 1 >;
 				compatible = "jedec,spi-nor";
 				spi-rx-bus-width = <2>;
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 			flash@2 {
 				reg = < 2 >;
 				compatible = "jedec,spi-nor";
 				spi-rx-bus-width = <2>;
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 			flash@3 {
 				reg = < 3 >;
 				compatible = "jedec,spi-nor";
 				spi-rx-bus-width = <2>;
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 			flash@4 {
 				reg = < 4 >;
 				compatible = "jedec,spi-nor";
 				spi-rx-bus-width = <2>;
+				spi-max-frequency = <50000000>;
 				status = "disabled";
 			};
 		};
-- 
2.35.1