sym_stest1
outb(sym_stest1, 0); /* make sure clock doubler is OFF */
outb(sym_stest1, 0x08); /* enable doubler */
outb(sym_stest1, 0x0c); /* engage doubler */
outb(sym_stest1, 0x08); /* enable doubler */
outb(sym_stest1, 0x0c); /* engage doubler */