[PATCH v2 2/5] riscv: dts: starfive: jh7110-common: qspi flash setting read-delay 2 cycles max 100MHz

From: E Shattow <e@freeshell.de>
To: Emil Renner Berthing <kernel@esmil.dk>,
	Conor Dooley <conor@kernel.org>, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	linux-riscv@lists.infradead.org, E Shattow <e@freeshell.de>,
	Hal Feng <hal.feng@starfivetech.com>
Subject: [PATCH v2 2/5] riscv: dts: starfive: jh7110-common: qspi flash setting read-delay 2 cycles max 100MHz
Date: Sun,  2 Feb 2025 17:37:08 -0800	[thread overview]
Message-ID: <20250203013730.269558-3-e@freeshell.de> (raw)
In-Reply-To: <20250203013730.269558-1-e@freeshell.de>

Sync qspi flash setting to read-delay=2 and spi-max-frequency 100MHz for
better compatibility with operating system and downstream boot loader SPL
secondary program loader.

Signed-off-by: E Shattow <e@freeshell.de>
Reviewed-by: Hal Feng <hal.feng@starfivetech.com>
---
 arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
index a5661b677687..8a59c3001339 100644
--- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
+++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
@@ -317,8 +317,8 @@ &qspi {
 	nor_flash: flash@0 {
 		compatible = "jedec,spi-nor";
 		reg = <0>;
-		cdns,read-delay = <5>;
-		spi-max-frequency = <12000000>;
+		cdns,read-delay = <2>;
+		spi-max-frequency = <100000000>;
 		cdns,tshsl-ns = <1>;
 		cdns,tsd2d-ns = <1>;
 		cdns,tchsh-ns = <1>;
-- 
2.47.2


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
