diff mbox series

[v2,2/3] arm64: dts: ti: am654-base-board: Enable 8D-8D-8D mode on OSPI

Message ID 20210305153926.3479-3-p.yadav@ti.com
State Accepted
Commit 7c172b30a540644fa53051e947d6712be5d6d6ce
Headers show
Series Enable 8D-8D-8D mode on J721E, J7200, AM654 | expand

Commit Message

Pratyush Yadav March 5, 2021, 3:39 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>
---

Notes:
    No changes in v2.

 arch/arm64/boot/dts/ti/k3-am654-base-board.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

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>;