GENET_DMA_DESC_SIZE
TX_DESC_COUNT * GENET_DMA_DESC_SIZE / 4 - 1);
RX_DESC_COUNT * GENET_DMA_DESC_SIZE / 4 - 1);
#define GENET_RX_DESC_STATUS(idx) (GENET_RX_BASE + GENET_DMA_DESC_SIZE * (idx) + 0x00)
#define GENET_RX_DESC_ADDRESS_LO(idx) (GENET_RX_BASE + GENET_DMA_DESC_SIZE * (idx) + 0x04)
#define GENET_RX_DESC_ADDRESS_HI(idx) (GENET_RX_BASE + GENET_DMA_DESC_SIZE * (idx) + 0x08)
#define GENET_TX_DESC_STATUS(idx) (GENET_TX_BASE + GENET_DMA_DESC_SIZE * (idx) + 0x00)
#define GENET_TX_DESC_ADDRESS_LO(idx) (GENET_TX_BASE + GENET_DMA_DESC_SIZE * (idx) + 0x04)
#define GENET_TX_DESC_ADDRESS_HI(idx) (GENET_TX_BASE + GENET_DMA_DESC_SIZE * (idx) + 0x08)