diff options
| author | Fabien Parent <fparent@baylibre.com> | 2017-01-17 13:57:42 +0100 |
|---|---|---|
| committer | Sasha Levin <alexander.levin@verizon.com> | 2017-03-06 17:29:29 -0500 |
| commit | 3e9067b2ba1e4bd2d5d81a5e9ea12f024424916b (patch) | |
| tree | d6406ba9878734bf37ee58d11dcd8262c2f0d15f /arch/arm/boot/dts | |
| parent | 4730dec8d3f8c30d9221cf0fa07f2a4f35d77b5a (diff) | |
ARM: dts: da850-evm: fix read access to SPI flash
[ Upstream commit 43849785e1079f6606a31cb7fda92d1200849728 ]
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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Diffstat (limited to 'arch/arm/boot/dts')
| -rw-r--r-- | arch/arm/boot/dts/da850-evm.dts | 1 |
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 4f935ad9f27b..6881757b03e8 100644 --- a/arch/arm/boot/dts/da850-evm.dts +++ b/arch/arm/boot/dts/da850-evm.dts @@ -85,6 +85,7 @@ #size-cells = <1>; compatible = "m25p64"; spi-max-frequency = <30000000>; + m25p,fast-read; reg = <0>; partition@0 { label = "U-Boot-SPL"; |