[crypto] [marvell-cesa] Driver hangs on Armada 385 device
From: Thomas Petazzoni <hidden>
Date: 2016-08-24 12:38:55
Hello, On Wed, 24 Aug 2016 13:52:33 +0300, radioconfusion at gmail.com wrote:
I assume that you mean mem=1022M. Quick testing results: mem=256M works mem=384M not mem=524160k not (512M-128k) mem=524228k works (512M-60k) mem=512M works mem=524348k not (512M+60k) mem=524416k not (512M+128k) mem=768M works mem=896M not mem=960M not mem=1022M not mem=1023M not mem=1048000k not mem=1048448k not (1024M-128k) mem=1048514k not mem=1048516k works (1024M-60k) mem=1048518k works mem=1048520k works mem=1024M works
The Mbus windows need to have a power of two size, and there are windows going from the device to the CPU for devices doing DMA. If the memory size is not a power of two, I'm not sure we're rounding up the window size to the next power of two. That might be the issue here. Best regards, Thomas -- Thomas Petazzoni, CTO, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com