drivers/net/arm/at91_ether.h

   1 /*
   2  * Ethernet driver for the Atmel AT91RM9200 (Thunder)
   3  *
   4  *  Copyright (C) SAN People (Pty) Ltd
   5  *
   6  * Based on an earlier Atmel EMAC macrocell driver by Atmel and Lineo Inc.
   7  * Initial version by Rick Bronson.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License
  11  * as published by the Free Software Foundation; either version
  12  * 2 of the License, or (at your option) any later version.
  13  */
  14
  15 #ifndef AT91_ETHERNET
  16 #define AT91_ETHERNET
  17
  18
  19 /* Davicom 9161 PHY */
  20 #define MII_DM9161_ID   0x0181b880
  21 #define MII_DM9161A_ID  0x0181b8a0
  22
  23 /* Davicom specific registers */
  24 #define MII_DSCR_REG    16
  25 #define MII_DSCSR_REG   17
  26 #define MII_DSINTR_REG  21
  27
  28 /* Intel LXT971A PHY */
  29 #define MII_LXT971A_ID  0x001378E0
  30
  31 /* Intel specific registers */
  32 #define MII_ISINTE_REG  18
  33 #define MII_ISINTS_REG  19
  34 #define MII_LEDCTRL_REG 20
  35
  36 /* Realtek RTL8201 PHY */
  37 #define MII_RTL8201_ID  0x00008200
  38
  39 /* Broadcom BCM5221 PHY */
  40 #define MII_BCM5221_ID  0x004061e0
  41
  42 /* Broadcom specific registers */
  43 #define MII_BCMINTR_REG 26
  44
  45 /* National Semiconductor DP83847 */
  46 #define MII_DP83847_ID  0x20005c30
  47
  48 /* Altima AC101L PHY */
  49 #define MII_AC101L_ID   0x00225520
  50
  51 /* Micrel KS8721 PHY */
  52 #define MII_KS8721_ID   0x00221610
  53
  54 /* ........................................................................ */
  55
  56 #define MAX_RBUFF_SZ    0x600           /* 1518 rounded up */
  57 #define MAX_RX_DESCR    9               /* max number of receive buffers */
  58
  59 #define EMAC_DESC_DONE  0x00000001      /* bit for if DMA is done */
  60 #define EMAC_DESC_WRAP  0x00000002      /* bit for wrap */
  61
  62 #define EMAC_BROADCAST  0x80000000      /* broadcast address */
  63 #define EMAC_MULTICAST  0x40000000      /* multicast address */
  64 #define EMAC_UNICAST    0x20000000      /* unicast address */
  65
  66 struct rbf_t
  67 {
  68         unsigned int addr;
  69         unsigned long size;
  70 };
  71
  72 struct recv_desc_bufs
  73 {
  74         struct rbf_t descriptors[MAX_RX_DESCR];         /* must be on sizeof (rbf_t) boundary */
  75         char recv_buf[MAX_RX_DESCR][MAX_RBUFF_SZ];      /* must be on long boundary */
  76 };
  77
  78 struct at91_private
  79 {
  80         struct net_device_stats stats;
  81         struct mii_if_info mii;                 /* ethtool support */
  82         struct at91_eth_data board_data;        /* board-specific configuration */
  83         struct clk *ether_clk;                  /* clock */
  84
  85         /* PHY */
  86         unsigned long phy_type;                 /* type of PHY (PHY_ID) */
  87         spinlock_t lock;                        /* lock for MDI interface */
  88         short phy_media;                        /* media interface type */
  89         unsigned short phy_address;             /* 5-bit MDI address of PHY (0..31) */
  90
  91         /* Transmit */
  92         struct sk_buff *skb;                    /* holds skb until xmit interrupt completes */
  93         dma_addr_t skb_physaddr;                /* phys addr from pci_map_single */
  94         int skb_length;                         /* saved skb length for pci_unmap_single */
  95
  96         /* Receive */
  97         int rxBuffIndex;                        /* index into receive descriptor list */
  98         struct recv_desc_bufs *dlist;           /* descriptor list address */
  99         struct recv_desc_bufs *dlist_phys;      /* descriptor list physical address */
 100 };
 101
 102 #endif