ARM: dts: dra7xx: Update spi-max-frequency for QSPI

According to AM572x DM SPRS953A, QSPI max bus speed is 76.8MHz.
Therefore update the spi-max-frequency value of QSPI node for DRA74 and
DRA72 evm. This increase flash read speed by ~2MB/s.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>

diff --git a/arch/arm/dts/dra7-evm.dts b/arch/arm/dts/dra7-evm.dts
index 429b9ed..8b77a76 100644 (file)
--- a/arch/arm/dts/dra7-evm.dts
+++ b/arch/arm/dts/dra7-evm.dts
@@ -491,7 +491,7 @@
        pinctrl-names = "default";
        pinctrl-0 = <&qspi1_pins>;
 
-       spi-max-frequency = <64000000>;
+       spi-max-frequency = <76800000>;
        m25p80@0 {
                compatible = "s25fl256s1","spi-flash";
                spi-max-frequency = <64000000>;

diff --git a/arch/arm/dts/dra72-evm.dts b/arch/arm/dts/dra72-evm.dts
index ced2f11..c7c5d40 100644 (file)
--- a/arch/arm/dts/dra72-evm.dts
+++ b/arch/arm/dts/dra72-evm.dts
@@ -603,7 +603,7 @@
        pinctrl-names = "default";
        pinctrl-0 = <&qspi1_pins>;
 
-       spi-max-frequency = <64000000>;
+       spi-max-frequency = <76800000>;
        m25p80@0 {
                compatible = "s25fl256s1","spi-flash";
                spi-max-frequency = <64000000>;