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115 lines
2.3 KiB
115 lines
2.3 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* |
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* Alchemy Au1x00 ethernet driver include file |
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* |
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* Author: Pete Popov <[email protected]> |
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* |
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* Copyright 2001 MontaVista Software Inc. |
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*/ |
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#define MAC_IOSIZE 0x10000 |
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#define NUM_RX_DMA 4 /* Au1x00 has 4 rx hardware descriptors */ |
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#define NUM_TX_DMA 4 /* Au1x00 has 4 tx hardware descriptors */ |
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#define NUM_RX_BUFFS 4 |
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#define NUM_TX_BUFFS 4 |
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#define MAX_BUF_SIZE 2048 |
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#define ETH_TX_TIMEOUT (HZ/4) |
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#define MAC_MIN_PKT_SIZE 64 |
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#define MULTICAST_FILTER_LIMIT 64 |
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/* |
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* Data Buffer Descriptor. Data buffers must be aligned on 32 byte |
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* boundary for both, receive and transmit. |
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*/ |
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struct db_dest { |
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struct db_dest *pnext; |
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u32 *vaddr; |
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dma_addr_t dma_addr; |
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}; |
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/* |
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* The transmit and receive descriptors are memory |
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* mapped registers. |
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*/ |
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struct tx_dma { |
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u32 status; |
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u32 buff_stat; |
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u32 len; |
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u32 pad; |
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}; |
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struct rx_dma { |
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u32 status; |
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u32 buff_stat; |
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u32 pad[2]; |
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}; |
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/* |
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* MAC control registers, memory mapped. |
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*/ |
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struct mac_reg { |
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u32 control; |
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u32 mac_addr_high; |
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u32 mac_addr_low; |
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u32 multi_hash_high; |
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u32 multi_hash_low; |
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u32 mii_control; |
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u32 mii_data; |
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u32 flow_control; |
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u32 vlan1_tag; |
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u32 vlan2_tag; |
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}; |
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struct au1000_private { |
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struct db_dest *pDBfree; |
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struct db_dest db[NUM_RX_BUFFS+NUM_TX_BUFFS]; |
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struct rx_dma *rx_dma_ring[NUM_RX_DMA]; |
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struct tx_dma *tx_dma_ring[NUM_TX_DMA]; |
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struct db_dest *rx_db_inuse[NUM_RX_DMA]; |
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struct db_dest *tx_db_inuse[NUM_TX_DMA]; |
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u32 rx_head; |
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u32 tx_head; |
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u32 tx_tail; |
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u32 tx_full; |
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int mac_id; |
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int mac_enabled; /* whether MAC is currently enabled and running |
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* (req. for mdio) |
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*/ |
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int old_link; /* used by au1000_adjust_link */ |
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int old_speed; |
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int old_duplex; |
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struct mii_bus *mii_bus; |
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/* PHY configuration */ |
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int phy_static_config; |
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int phy_search_highest_addr; |
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int phy1_search_mac0; |
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int phy_addr; |
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int phy_busid; |
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int phy_irq; |
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/* These variables are just for quick access |
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* to certain regs addresses. |
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*/ |
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struct mac_reg *mac; /* mac registers */ |
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u32 *enable; /* address of MAC Enable Register */ |
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void __iomem *macdma; /* base of MAC DMA port */ |
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u32 vaddr; /* virtual address of rx/tx buffers */ |
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dma_addr_t dma_addr; /* dma address of rx/tx buffers */ |
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spinlock_t lock; /* Serialise access to device */ |
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u32 msg_enable; |
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};
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