CDMAC_CTRL_BASE
chan->dmac_ctrl_addr = CDMAC_CTRL_BASE(n);
#define CDMAC_TX0_BASE CDMAC_CTRL_BASE(0)
#define CDMAC_RX0_BASE CDMAC_CTRL_BASE(1)
#define CDMAC_TX1_BASE CDMAC_CTRL_BASE(2)
#define CDMAC_RX1_BASE CDMAC_CTRL_BASE(3)
DOCHAN(WCASE, DCR_CDMAC_BASE, CDMAC_CTRL_BASE(0));
DOCHAN(WCASE, DCR_CDMAC_BASE, CDMAC_CTRL_BASE(1));
DOCHAN(RCASE, DCR_CDMAC_BASE, CDMAC_CTRL_BASE(0));
DOCHAN(RCASE, DCR_CDMAC_BASE, CDMAC_CTRL_BASE(1));
chan->dmac_ctrl_addr = CDMAC_CTRL_BASE(idx);