diff options
| author | Fabien Parent <fparent@baylibre.com> | 2017-01-17 12:57:42 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-01-26 07:24:40 (GMT) |
| commit | 71c49649551460f484c97f79c4fd51728ae55495 (patch) | |
| tree | eb5c822b17e38ae3ff1ca8003216582d7233ec2b /arch/arm | |
| parent | 5b66186152158076de6a1405329b255a327dd538 (diff) | |
| download | linux-71c49649551460f484c97f79c4fd51728ae55495.tar.xz | |
ARM: dts: da850-evm: fix read access to SPI flash
commit 43849785e1079f6606a31cb7fda92d1200849728 upstream.
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.
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm')
| -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 41de15f..78492a0 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"; |