[2/3] arm64: dts: ti: am654-base-board: Enable 8D-8D-8D mode on OSPI
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Message ID 20210301195850.31868-3-p.yadav@ti.com
State New, archived
Headers show
Series
  • Enable 8D-8D-8D mode on J721E, J7200, AM654
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Commit Message

Pratyush Yadav March 1, 2021, 7:58 p.m. UTC
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 <p.yadav@ti.com>
---
 arch/arm64/boot/dts/ti/k3-am654-base-board.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch
diff mbox series

diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index fe3043943906..9e87fb313a54 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -483,9 +483,9 @@  &ospi0 {
 	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>;