RADEON_PPLL_REF_DIV
PRINTPLL(RADEON_PPLL_REF_DIV);
refdiv = GETPLL(sc, RADEON_PPLL_REF_DIV) &
uint32_t tmp = GETPLL(sc, RADEON_PPLL_REF_DIV);
while (GETPLL(sc, RADEON_PPLL_REF_DIV) &
SETPLL(sc, RADEON_PPLL_REF_DIV, RADEON_PPLL_ATOMIC_UPDATE_W);
if (GETPLL(sc, RADEON_PPLL_REF_DIV) &
refdiv = GETPLL(sc, RADEON_PPLL_REF_DIV);
if ((refdiv == GETPLL(sc, RADEON_PPLL_REF_DIV)) &&
PUTPLL(sc, RADEON_PPLL_REF_DIV, refdiv);
PRINTPLL(RADEON_PPLL_REF_DIV);