MPLL_CNTL         255 include/video/aty128.h #define MPLL_CNTL				0x000e
MPLL_CNTL         777 include/video/mach64.h #define MPLL_CNTL		0x00
MPLL_CNTL         442 include/video/radeon.h #define MPLL_CNTL                                  0x000e