CNFG_AHB
reg = nfi_readw(nfc, NFI_CNFG) | CNFG_AHB | CNFG_DMA_BURST_EN;
reg |= CNFG_READ_EN | CNFG_DMA_BURST_EN | CNFG_AHB;
reg &= ~(CNFG_DMA_BURST_EN | CNFG_AHB | CNFG_READ_EN |