Hi Fabio, 2018-04-11 9:45 GMT-03:00 Fabio Estevam <festevam@xxxxxxxxx>: > From: Fabio Estevam <fabio.estevam@xxxxxxx> > > The 'era' information can be retrieved from CAAM registers, so > introduce a caam_get_era_from_hw() function that gets it via register > reads in case the 'fsl,sec-era' property is not passed in the device > tree. > > This function is based on the U-Boot implementation from > drivers/crypto/fsl/sec.c > > Signed-off-by: Fabio Estevam <fabio.estevam@xxxxxxx> I have just tested on a mx7dsabresd board and confirmed that the ERA is correctly retrieved: Without your patch: [ 2.182756] caam 30900000.caam: device ID = 0x0a16030000000000 (Era -524) With your patch applied: [ 2.183526] caam 30900000.caam: device ID = 0x0a16030000000000 (Era 8) Tested-by: Breno Lima <breno.lima@xxxxxxx> Thanks, Breno Lima
