marvell_cesa fails to register on kirkwood (88F6282)

[Andrew Lunn]

On Fri, Feb 05, 2016 at 06:01:18AM +0100, JM wrote:
> Hi,
> 
> I am testing marvell_cesa on a kirkwood device (QNAP TS-212p, Marvell
> Kirkwood 88F6282, dts: http://pastebin.com/Gk95KFHf ).
> As of kernel 4.4 (4.4.0-trunk-kirkwood #1 Debian 4.4-1~exp1) it fails
> in the following way:
> 
> modprobe marvell_cesa allhwsupport=1
> dmesg | tail -n 1
> [ 1057.855091] marvell-cesa: probe of f1030000.crypto failed with error -12
> 
> or:
> 
> modprobe marvell_cesa
> dmesg | tail -n 1
> [ 9178.399357] marvell-cesa: probe of f1030000.crypto failed with error -524
> 
> With kernel 4.3 it would fail with error -22 on that hardware. There
> are scattered reports from other users experiencing the same issue
> (1,2,3)
> 
> I wonder if this is a result of an invalid definition of the
> crypto-sram in the dts of this SoC, or perhaps some other problem
> (PEBKAC included).

Hi Jan

Do you have SRAM enabled in your kernel configuration. The
mvebu_v5_defconfig does not have it, which is a bug really.

	   Andrew