ATP867X_IOBASE
v = ioread8(ATP867X_IOBASE(ap) + 0x28);
iowrite8(v, ATP867X_IOBASE(ap) + 0x28);
#define ATP867X_SYS_INFO(ap) (0x3F + ATP867X_IOBASE(ap))
#define ATP867X_IO_PORTBASE(ap, port) (0x00 + ATP867X_IOBASE(ap) + \