From 4c20ee99dd1a36ab89c6a8c51ed25e9328d8a8cc Mon Sep 17 00:00:00 2001 From: Pratyush Yadav Date: Fri, 5 Mar 2021 21:09:24 +0530 Subject: [PATCH] arm64: dts: ti: k3-j721e-som-p0: Enable 8D-8D-8D mode on OSPI Set the Tx bus width to 8 so 8D-8D-8D mode can be selected. Change the frequency to 25 MHz. This is the frequency that the flash has been successfully tested with in Octal DTR mode. The total performance should still increase since 8D-8D-8D mode should be at least twice as fast as 1S-1S-8S mode. Signed-off-by: Pratyush Yadav Signed-off-by: Nishanth Menon Reviewed-by: Vignesh Raghavendra Link: https://lore.kernel.org/r/20210305153926.3479-2-p.yadav@ti.com --- arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi index 57720e6..2fee290 100644 --- a/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j721e-som-p0.dtsi @@ -174,9 +174,9 @@ flash@0{ compatible = "jedec,spi-nor"; reg = <0x0>; - spi-tx-bus-width = <1>; + spi-tx-bus-width = <8>; spi-rx-bus-width = <8>; - spi-max-frequency = <40000000>; + spi-max-frequency = <25000000>; cdns,tshsl-ns = <60>; cdns,tsd2d-ns = <60>; cdns,tchsh-ns = <60>; -- 2.7.4