56ea9c7b08
driver. This is taken from the MAC at boot, but can be overridden with 'options AT91_MACB_USE_RMII'. Switch to macb for HL201 and SAM9G20EK boards. It now works both places. Also start to sneak up on FDT for the SAM9G20EK board, but leave disabled due to issues with MMC that haven't been resolved. Add early debug support for the SAM9G20EK since that is required for FDT to work presently on these SoC.
139 lines
2.7 KiB
C
139 lines
2.7 KiB
C
/*
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* $FreeBSD$
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*/
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#ifndef _IF_MACB_H
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#define _IF_MACB_H
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#define MACB_MAX_TX_BUFFERS 64
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#define MACB_MAX_RX_BUFFERS 256
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#define MAX_FRAGMENT 20
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#define DATA_SIZE 128
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#define MACB_DESC_INC(x, y) ((x) = ((x) + 1) % (y))
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#define MACB_TIMEOUT 1000
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struct eth_tx_desc {
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uint32_t addr;
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uint32_t flags;
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#define TD_OWN (1U << 31)
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#define TD_LAST (1 << 15)
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#define TD_WRAP_MASK (1 << 30)
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};
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struct eth_rx_desc {
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uint32_t addr;
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#define RD_LEN_MASK 0x7ff
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#define RD_WRAP_MASK 0x00000002
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#define RD_OWN 0x00000001
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uint32_t flags;
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#define RD_BROADCAST (1U << 31)
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#define RD_MULTICAST (1 << 30)
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#define RD_UNICAST (1 << 29)
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#define RD_EXTERNAL (1 << 28)
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#define RD_TYPE_ID (1 << 22)
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#define RD_PRIORITY (1 << 20)
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#define RD_VLAN (1 << 21)
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#define RD_CONCAT (1 << 16)
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#define RD_EOF (1 << 15)
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#define RD_SOF (1 << 14)
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#define RD_OFFSET_MASK (1 << 13)|(1 << 12)
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#define RD_LENGTH_MASK (0x00000FFF)
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};
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struct rx_desc_info {
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struct mbuf *buff;
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bus_dmamap_t dmamap;
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};
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struct tx_desc_info {
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struct mbuf *buff;
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bus_dmamap_t dmamap;
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};
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struct macb_chain_data{
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struct mbuf *rxhead;
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struct mbuf *rxtail;
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};
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struct macb_softc
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{
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struct ifnet *ifp; /* ifnet pointer */
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struct mtx sc_mtx; /* global mutex */
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bus_dma_tag_t sc_parent_tag; /* parent bus DMA tag */
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device_t dev; /* Myself */
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device_t miibus; /* My child miibus */
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void *intrhand; /* Interrupt handle */
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void *intrhand_qf; /* queue full */
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void *intrhand_tx; /* tx complete */
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void *intrhand_status; /* error status */
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struct resource *irq_res; /* transmit */
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struct resource *irq_res_rec; /* receive */
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struct resource *irq_res_qf; /* queue full */
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struct resource *irq_res_status; /* status */
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struct resource *mem_res; /* Memory resource */
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struct callout tick_ch; /* Tick callout */
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struct taskqueue *sc_tq;
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struct task sc_intr_task;
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struct task sc_tx_task;
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struct task sc_link_task;
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bus_dmamap_t dmamap_ring_tx;
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bus_dmamap_t dmamap_ring_rx;
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/*dma tag for ring*/
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bus_dma_tag_t dmatag_ring_tx;
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bus_dma_tag_t dmatag_ring_rx;
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/*dma tag for data*/
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bus_dma_tag_t dmatag_data_tx;
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bus_dma_tag_t dmatag_data_rx;
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/*the ring*/
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struct eth_tx_desc *desc_tx;
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struct eth_rx_desc *desc_rx;
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/*ring physical address*/
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bus_addr_t ring_paddr_tx;
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bus_addr_t ring_paddr_rx;
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/*index of last received descriptor*/
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int rx_cons;
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struct rx_desc_info rx_desc[MACB_MAX_RX_BUFFERS];
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/* tx producer index */
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uint32_t tx_prod;
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/* tx consumer index */
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uint32_t tx_cons;
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int tx_cnt;
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struct tx_desc_info tx_desc[MACB_MAX_TX_BUFFERS];
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int macb_watchdog_timer;
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#define MACB_FLAG_LINK 0x0001
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int flags;
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int if_flags;
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struct at91_pmc_clock *clk;
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struct macb_chain_data macb_cdata;
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int clock;
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uint32_t use_rmii; /* 0 or USRIO_RMII */
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};
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#endif
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