lantiq: TDW89x0 - increase spi frequency

Use the same max spi frequency as set in u-boot.

According to the datasheets, the Q64-104HIP as well as the Winbond
25Q64FVSIG support spi frequencies up to 50 MHz. During my tests, the
Q64-104HIP couldn't be recognized/initialized if the frequency
was > 40MHz.

Both chips do support fast read as well.

While touching the dts file, I fixed the dtc compiler warnings.

Signed-off-by: Mathias Kresin <openwrt@kresin.me>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@47994 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/lantiq/dts/TDW89X0.dtsi b/target/linux/lantiq/dts/TDW89X0.dtsi
index cd3d6bd..46ff11f 100644 (file)
--- a/target/linux/lantiq/dts/TDW89X0.dtsi
+++ b/target/linux/lantiq/dts/TDW89X0.dtsi
@@ -16,12 +16,14 @@
                        interrupt-parent = <&icu0>;
                        interrupts = <22 23 24>;
                        #address-cells = <1>;
+                       #size-cells = <1>;
                        m25p80@0 {
                                #address-cells = <1>;
                                #size-cells = <1>;
                                compatible = "jedec,spi-nor";
-                               reg = <3>;
-                               spi-max-frequency = <20000000>;
+                               reg = <3 0>;
+                               spi-max-frequency = <33250000>;
+                               m25p,fast-read;
 
                                partition@0 {
                                        reg = <0x0 0x20000>;