| From: Fabien Parent <fparent@baylibre.com> |
| Date: Tue, 17 Jan 2017 13:57:42 +0100 |
| Subject: 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: 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"; |
