BHND_DMA_ADDR_32BIT
if (width > BHND_DMA_ADDR_32BIT) {
width = BHND_DMA_ADDR_32BIT;
mac->mac_dmatype = BHND_DMA_ADDR_32BIT;
addr_width = BHND_DMA_ADDR_32BIT;
case BHND_DMA_ADDR_32BIT:
addr_width = BHND_DMA_ADDR_32BIT;