[U-Boot] smiLynxEM.c question..

[Mark Skuse]

Looking at the driver for the sm712 graphics chip and noticed
something that I just can get my head wrapped around...

Why is isaBase added to the index in smiWrite() when it is already
added to each index when it is defined (i.e. #define SMI_INDX_C4
(pGD->isaBase + 0x03c4)) ?  I figure I have to be missing something
quite obvious since it has been this way for quite some time and no
one seems to have mentioned it before.