ZS_CHAN_A
static const int chanoff[] = { ZS_CHAN_A, ZS_CHAN_B };
zs_cons = (uint8_t *)MIPS_PHYS_TO_KSEG1(ZS_BASE) + ZS_CHAN_A; /* XXX */
#define ZSCHAN ZS_CHAN_A
static int zs_chan_offset[] = {ZS_CHAN_A, ZS_CHAN_B};
static int zs_chan_offset[] = {ZS_CHAN_A, ZS_CHAN_B};