#define mv64x60_set_bits(bh, offs, bits) mv64x60_modify(bh, offs, ~0, bits)
#define mv64x60_clr_bits(bh, offs, bits) mv64x60_modify(bh, offs, 0, bits)
#define mv64x60_set_bits(bh, offs, bits) mv64x60_modify(bh, offs, ~0, bits)
#define mv64x60_clr_bits(bh, offs, bits) mv64x60_modify(bh, offs, 0, bits)