arch: arm: dts: agilex5: Set spi-max-freq to 50Mhz

This patch is to set spi-max-freq to 50Mhz. This will add support to the
driver to set the operation speed according to the slave device up to
50Mhz. Without this node, the driver just can adjust the operation speed
to the default speed which is far below the best
operation speed of the SPI slave device.

Signed-off-by: Dinesh Maniyam <dinesh.maniyam@intel.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>

diff --git a/arch/arm/dts/socfpga_agilex5.dtsi b/arch/arm/dts/socfpga_agilex5.dtsi
index 86322d7b0ced2f4e6e22bd099726f43a47c5d058..9bc3864022b629057931b3f5e38d326f302762cc 100644 (file)
--- a/arch/arm/dts/socfpga_agilex5.dtsi
+++ b/arch/arm/dts/socfpga_agilex5.dtsi
@@ -388,6 +388,7 @@
                        reg-io-width = <4>;
                        num-cs = <4>;
                        clocks = <&clkmgr AGILEX5_L4_MAIN_CLK>;
+                       spi-max-frequency = <50000000>;
                        status = "disabled";
                };
 
@@ -402,6 +403,7 @@
                        reg-io-width = <4>;
                        num-cs = <4>;
                        clocks = <&clkmgr AGILEX5_L4_MAIN_CLK>;
+                       spi-max-frequency = <50000000>;
                        status = "disabled";
                };