Hi Clemens, 2017-12-20 20:08 GMT-02:00 Clemens Gruber <[email protected]>: > The blob_encap and blob_decap functions were not flushing the dcache > before passing data to CAAM/DMA and not invalidating the dcache when > getting data back. > Therefore, blob encapsulation and decapsulation failed with errors like > the following due to data cache incoherency: > "40000006: DECO: desc idx 0: Invalid KEY command" > > To ensure coherency, we allocate aligned memory to store the data passed > to/from CAAM and flush/invalidate the memory regions. > Blobs can now be encapsulated and decapsulated with the blob cmd as well > as from board code by calling blob_encap and blob_decap directly. > > Tested on an i.MX6Q board.
I tested your patch on a closed i.MX6QSabreAuto and the functions blob_encap() and blob_decap() are working fine. In my environment I had to add a small modification in function do_blob() in cmd/blob.c file to get the cmd blob working: + hab_caam_clock_enable(1); + sec_init(); I will investigate this and provide a fix. > > Signed-off-by: Clemens Gruber <[email protected]> Tested-by: Breno Lima <[email protected]> Thanks _______________________________________________ U-Boot mailing list [email protected] https://lists.denx.de/listinfo/u-boot
