CPC
for (i = CPC; i <= COLOR; i += 1)
[CPC] = { 0x0018, 0x40, OMAP_DMA_REG_16BIT }, /* 15xx only */
p->dma_write(0, CPC, lch);
offset = p->dma_read(CPC, lch);
offset = p->dma_read(CPC, lch);
omap_dma_chan_write(c, CPC, 0);
addr = omap_dma_chan_read(c, CPC);
addr = omap_dma_chan_read(c, CPC);
XGMAC_SET_BITS_LE(rdesc->desc3, TX_NORMAL_DESC3, CPC, 0);