AnsweredAssumed Answered

why is there TLB entry for CCSRBAR

Question asked by t.alex on Apr 25, 2014
Latest reply on Apr 27, 2014 by LPP

Hi,

 

In u-boot when displaying the registers, I saw an entry for CCSRBAR:

 

entry 01: V: 1 EPN 0xfe000000 RPN 0xffe000000 size:16 MiB

 

and u-boot code does add this entry using the macros CONFIG_SYS_CCSRBAR_DEFAULT(0xFE00_0000) and CONFIG_SYS_CCSRBAR_PHYS(0xF_FE00_0000).

 

Why is there a need for this? Based on the reference manual, all we need to do is to set a base value for CCSRBAR.

 

Address 0XF_FE00_0000 seems to have no defined global ID.

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