| From | Ben Hutchings <> | Date | Fri, 10 Mar 2017 11:46:23 +0000 | Subject | [PATCH 3.16 245/370] ARM: dts: da850-evm: fix read access to SPI flash |
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3.16.42-rc1 review patch. If anyone has any objections, please let me know.
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From: Fabien Parent <fparent@baylibre.com>
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: Olof Johansson <olof@lixom.net> Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- arch/arm/boot/dts/da850-evm.dts | 1 + 1 file changed, 1 insertion(+)
--- a/arch/arm/boot/dts/da850-evm.dts +++ b/arch/arm/boot/dts/da850-evm.dts @@ -59,6 +59,7 @@ #size-cells = <1>; compatible = "m25p64"; spi-max-frequency = <30000000>; + m25p,fast-read; reg = <0>; partition@0 { label = "U-Boot-SPL";
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