From 3e9067b2ba1e4bd2d5d81a5e9ea12f024424916b Mon Sep 17 00:00:00 2001 From: Fabien Parent Date: Tue, 17 Jan 2017 13:57:42 +0100 Subject: 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 Signed-off-by: Fabien Parent [nsekhar@ti.com: subject line adjustment] Signed-off-by: Sekhar Nori Signed-off-by: Olof Johansson Signed-off-by: Sasha Levin --- arch/arm/boot/dts/da850-evm.dts | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm/boot/dts') 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"; -- cgit v1.2.3