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what is the JRSDIDR in CAAM.

Question asked by MyungJin Hwang on Mar 7, 2016
Latest reply on Mar 8, 2016 by MyungJin Hwang

Dear NXP team.

 

I have a "IMX6DQ6SDLSRM_security.pdf" doc file.

- Document Number: IMX6DQ6SDLSRM Rev. 0, 03/2013

 

Question 1. I can not find what is the  JRSDIDR and what does it mean in the doc file.

 

     B.2.6 Job Ring Registers

     This section describes registers found in each of the job rings. A functional description of

     the job rings can be found in the “Cryptographic Acceleration and Assurance Module

     (CAAM)” chapter.

     If the job ring is allocated to TrustZone SecureWorld (JRSDIDR TZ=1), then the job ring

     registers associated with this ring may only be written via a bus transaction that has ns=0.

     Transactions with ns=1 for job rings owned by TrustZone SecureWorld will be ignored.

 

Question 2. Input/Output Ring Base Address Register

     There are each 2 Input/Output Ring Base Address Register .

     - IRBAR0, IRBAR1

     - ORBAR0, ORBAR01

     What is the different of IRBAR0, IRBAR1 and ORBAR0, ORBAR01 ?

     - ex) IRBAR0 is for TrustZone SecureWorld and IRBAR1 is for TrustZone Non-SecureWorld ?

 

Best regards,

MyungJin Hwang

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