EXT_MEM_CNTL
aty_st_le32(EXT_MEM_CNTL, aty_ld_le32(EXT_MEM_CNTL, par) | 0x5000001, par);
aty_ld_le32(EXT_MEM_CNTL, par),
memRefreshCntl = INREG(EXT_MEM_CNTL) & ~(1 << 20);
OUTREG( EXT_MEM_CNTL, memRefreshCntl | (1 << 20));
OUTREG(EXT_MEM_CNTL, memRefreshCntl);
OUTREG(EXT_MEM_CNTL, 0x1a394333);