AP94 calibration data

[lingwang at altaitechnologies.com]

 Hi developer,

    I want know why  does the Atheros AP94 calibration data begin at
0x1fff0000(art = (u8
 *) KSEG1ADDR(0x1fff0000) in
<http://lists.freebsd.org/pipermail/svn-src-head/2012-April/036169.html>
head/sys/mips/conf/AP94.hints<http://lists.freebsd.org/pipermail/svn-src-head/2012-April/036169.html>),but
in the reboot,calibration data begin at
 0xbf7f0000 in Atheros AP94 reference board.what does the relate between
 0x1fff0000 and 0xbf7f000?
   Otherwise,I can't read calibration data if I use ioremap() function to
 instead of KSEG1ADDR() macro (KSEG1ADDR(0x1fff0000) ==>
 ioremap(0xbf7f000)).Can u tell me the reason?

WL