[BUG] spi: spi-fsl-dspi: -EIO reading data on ColdFire

[Angelo Dureghello <angelo@xxxxxxxx>]

Hi Esben,

your commit 

commit dadcf4abd60ba6401b592c329a19719a6e1dd444
Author: Esben Haabendal <eha@xxxxxxxx>
Date:   Wed Jun 20 09:34:35 2018 +0200

    spi: spi-fsl-dspi: Support 4 to 16 bits per word transfers

seems have broken data read on ColdFire.

[    8.450000] m25p80 spi0.1: error -5 reading 9f
[    8.450000] m25p80: probe of spi0.1 failed with error -5
[    8.500000] Freeing unused kernel memory: 320K
[    8.500000] This architecture does not have kernel memory protection.

I'll try now my best to find and fix the issue for mcf5441x, btw,
if any idea where the issue could be, welcome.

Regards,
Angelo Dureghello