arm: zynq: dts: add spi flash node to zedboard

Add a flash node to fix the detection of the memory IC.
With the changes introduced with commit 8fee8845e754
("enf_sf: reuse setup_flash_device instead of open coding it")
the SPI speed is now read from device-tree or a default value
is applied. This replaced the old behavior of setting the
SPI speed to CONFIG_ENV_SPI_MAX_HZ.

As this board didn't have a flash node, the default value
was applied to the SPI speed, producing an error when probing
the flash memory (speed too slow).

Signed-off-by: Luis Araneda <luaraneda@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

diff --git a/arch/arm/dts/zynq-zed.dts b/arch/arm/dts/zynq-zed.dts
index 24eccf1633d8bc462e1888a3a35d71cb492e57a4..9c505fb7b8729222aa990d467ca52300a5aacbac 100644 (file)
--- a/arch/arm/dts/zynq-zed.dts
+++ b/arch/arm/dts/zynq-zed.dts
@@ -51,6 +51,13 @@
 &qspi {
        u-boot,dm-pre-reloc;
        status = "okay";
+       num-cs = <1>;
+       flash@0 {
+               compatible = "spansion,s25fl256s", "spi-flash";
+               reg = <0>;
+               spi-max-frequency = <30000000>;
+               m25p,fast-read;
+       };
 };
 
 &sdhci0 {