Bruno writes:
Bruno> I'm developing a project that uses a MPC885 processor, that Bruno> has a embedded security processor. The MPC885 Reference Bruno> Manual Bruno> (http://www.freescale.com/files/32bit/doc/ref_manual/MPC885RM.pdf Bruno> - Section 10.4.1) and a Application Note Bruno> (http://www.freescale.com/files/32bit/doc/app_note/AN2800.pdf) Bruno> say that bits D14-D15 of the IMMR register should be set to Bruno> '10' to enable the access of the security processor (SEC Bruno> Lite) registers.
No, they say that SEC Lite registers are accessed at addresses having bits 14-15 set to 10, i.e. if IMMR is 0xFF000000 SEC Lite memory space is mapped to 0xFF020000.
Bruno> I tried to change my define CFG_IMMR from 0xFF000000 to Bruno> 0xFF020000, but as result the U-boot hanged.
Bruno> I searched the source codes of another boards (NETVIA, Bruno> NETTAx) that also use the MPC885 but all of them set the IMMR Bruno> to 0xFF000000.
Bruno> So, I ask: someone here uses the Security Processor of Bruno> MPC885?
We use it in Linux. Do you really want to use SEC in the U-Boot?
Bruno> How to set the IMMR register to achieve the access of the SEC Bruno> Lite registers??