drivers/net/greth.h

   1 /* Gaisler.com GRETH 10/100/1000 Ethernet MAC driver
   2  *
   3  * (C) Copyright 2007
   4  * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  */
   8
   9 #define GRETH_FD 0x10
  10 #define GRETH_RESET 0x40
  11 #define GRETH_MII_BUSY 0x8
  12 #define GRETH_MII_NVALID 0x10
  13
  14 /* MII registers */
  15 #define GRETH_MII_EXTADV_1000FD 0x00000200
  16 #define GRETH_MII_EXTADV_1000HD 0x00000100
  17 #define GRETH_MII_EXTPRT_1000FD 0x00000800
  18 #define GRETH_MII_EXTPRT_1000HD 0x00000400
  19
  20 #define GRETH_MII_100T4 0x00000200
  21 #define GRETH_MII_100TXFD 0x00000100
  22 #define GRETH_MII_100TXHD 0x00000080
  23 #define GRETH_MII_10FD 0x00000040
  24 #define GRETH_MII_10HD 0x00000020
  25
  26 #define GRETH_BD_EN 0x800
  27 #define GRETH_BD_WR 0x1000
  28 #define GRETH_BD_IE 0x2000
  29 #define GRETH_BD_LEN 0x7FF
  30
  31 #define GRETH_TXEN 0x1
  32 #define GRETH_INT_TX 0x8
  33 #define GRETH_TXI 0x4
  34 #define GRETH_TXBD_STATUS 0x0001C000
  35 #define GRETH_TXBD_MORE 0x20000
  36 #define GRETH_TXBD_IPCS 0x40000
  37 #define GRETH_TXBD_TCPCS 0x80000
  38 #define GRETH_TXBD_UDPCS 0x100000
  39 #define GRETH_TXBD_ERR_LC 0x10000
  40 #define GRETH_TXBD_ERR_UE 0x4000
  41 #define GRETH_TXBD_ERR_AL 0x8000
  42 #define GRETH_TXBD_NUM 128
  43 #define GRETH_TXBD_NUM_MASK (GRETH_TXBD_NUM-1)
  44 #define GRETH_TX_BUF_SIZE 2048
  45
  46 #define GRETH_INT_RX         0x4
  47 #define GRETH_RXEN           0x2
  48 #define GRETH_RXI            0x8
  49 #define GRETH_RXBD_STATUS    0xFFFFC000
  50 #define GRETH_RXBD_ERR_AE    0x4000
  51 #define GRETH_RXBD_ERR_FT    0x8000
  52 #define GRETH_RXBD_ERR_CRC   0x10000
  53 #define GRETH_RXBD_ERR_OE    0x20000
  54 #define GRETH_RXBD_ERR_LE    0x40000
  55 #define GRETH_RXBD_IP_DEC    0x80000
  56 #define GRETH_RXBD_IP_CSERR  0x100000
  57 #define GRETH_RXBD_UDP_DEC   0x200000
  58 #define GRETH_RXBD_UDP_CSERR 0x400000
  59 #define GRETH_RXBD_TCP_DEC   0x800000
  60 #define GRETH_RXBD_TCP_CSERR 0x1000000
  61
  62 #define GRETH_RXBD_NUM 128
  63 #define GRETH_RXBD_NUM_MASK (GRETH_RXBD_NUM-1)
  64 #define GRETH_RX_BUF_SIZE 2048
  65
  66 /* Ethernet configuration registers */
  67 typedef struct _greth_regs {
  68         volatile unsigned int control;
  69         volatile unsigned int status;
  70         volatile unsigned int esa_msb;
  71         volatile unsigned int esa_lsb;
  72         volatile unsigned int mdio;
  73         volatile unsigned int tx_desc_p;
  74         volatile unsigned int rx_desc_p;
  75 } greth_regs;
  76
  77 /* Ethernet buffer descriptor */
  78 typedef struct _greth_bd {
  79         volatile unsigned int stat;
  80         unsigned int addr;      /* Buffer address not changed by HW */
  81 } greth_bd;