44 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			44 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
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(+)
 | 
						|
 | 
						|
diff --git a/arch/arm/dts/zynq-zed.dts b/arch/arm/dts/zynq-zed.dts
 | 
						|
index 24eccf1633..9c505fb7b8 100644
 | 
						|
--- 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 {
 | 
						|
-- 
 | 
						|
2.18.0
 | 
						|
 |