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authorFabien Parent <fparent@baylibre.com>2017-01-17 13:57:42 +0100
committerOlof Johansson <olof@lixom.net>2017-01-19 16:23:19 -0800
commit43849785e1079f6606a31cb7fda92d1200849728 (patch)
tree530d3a1dda82159d8c2e038bbf6f7e8cbbf2647f
parente47a8b172972ef10246e72e9277d27e3119e35ab (diff)
ARM: dts: da850-evm: fix read access to SPI flash
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: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Fabien Parent <fparent@baylibre.com> [nsekhar@ti.com: subject line adjustment] Signed-off-by: Sekhar Nori <nsekhar@ti.com> Signed-off-by: Olof Johansson <olof@lixom.net>
-rw-r--r--arch/arm/boot/dts/da850-evm.dts1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index 41de15fe15a2..78492a0bbbab 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -99,6 +99,7 @@
#size-cells = <1>;
compatible = "m25p64";
spi-max-frequency = <30000000>;
+ m25p,fast-read;
reg = <0>;
partition@0 {
label = "U-Boot-SPL";