Commit 3e9067b2 authored by Fabien Parent's avatar Fabien Parent Committed by Sasha Levin

ARM: dts: da850-evm: fix read access to SPI flash

[ Upstream commit 43849785 ]

Read access to the SPI flash are broken on da850-evm, i.e. the data
read is not what is actually programmed on the flash.
According to the datasheet for the M25P64 part present on the da850-evm,
if the SPI frequency is higher than 20MHz then the READ command is not
usable anymore and only the FAST_READ command can be used to read data.

This commit specifies in the DTS that we should use FAST_READ command
instead of the READ command.

Cc: stable@vger.kernel.org
Tested-by: default avatarKevin Hilman <khilman@baylibre.com>
Signed-off-by: default avatarFabien Parent <fparent@baylibre.com>
[nsekhar@ti.com: subject line adjustment]
Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
Signed-off-by: default avatarOlof Johansson <olof@lixom.net>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
parent 4730dec8
...@@ -85,6 +85,7 @@ flash: m25p80@0 { ...@@ -85,6 +85,7 @@ flash: m25p80@0 {
#size-cells = <1>; #size-cells = <1>;
compatible = "m25p64"; compatible = "m25p64";
spi-max-frequency = <30000000>; spi-max-frequency = <30000000>;
m25p,fast-read;
reg = <0>; reg = <0>;
partition@0 { partition@0 {
label = "U-Boot-SPL"; label = "U-Boot-SPL";
......
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