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From a492fdffa3c86f6b8420b6433a2ce07271597324 Mon Sep 17 00:00:00 2001
From: Luis Araneda <luaraneda@gmail.com>
Date: Fri, 27 Jul 2018 04:43:42 -0400
Subject: [PATCH] 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>
---
arch/arm/dts/zynq-zed.dts | 7 +++++++
1 file changed, 7 insertions(+)
--- 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 {
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