[PATCH] arm64: zynqmp: Fix zynqmp mini qspi max frequency

[Michal Simek]

From: T Karthik Reddy <t.karthik.reddy at xilinx.com>

For zynqmp qspi, frequencies up to 40MHz will work irrespective
of feedback clock enabled or disabled. If we want higher than
40Mhz the feedback clock should be enabled.

With spi-max-frequency 108MHz it is not working when the feedback
clock is disabled. Change it to 40MHz so that it works irrespective
of feedback clock enabled or disabled.

Signed-off-by: T Karthik Reddy <t.karthik.reddy at xilinx.com>
Acked-by: Ashok Reddy Soma <ashok.reddy.soma at xilinx.com>
Signed-off-by: Michal Simek <michal.simek at xilinx.com>
---

 arch/arm/dts/zynqmp-mini-qspi.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/dts/zynqmp-mini-qspi.dts b/arch/arm/dts/zynqmp-mini-qspi.dts
index a76e6404661e..9b4320fe6e20 100644
--- a/arch/arm/dts/zynqmp-mini-qspi.dts
+++ b/arch/arm/dts/zynqmp-mini-qspi.dts
@@ -70,7 +70,7 @@
 		reg = <0x0>;
 		spi-tx-bus-width = <1>;
 		spi-rx-bus-width = <4>;
-		spi-max-frequency = <108000000>;
+		spi-max-frequency = <40000000>;
 	};
 };
 
-- 
2.27.0