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 * See file CREDITS for list of people who contributed to this 7 * project. 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 as 11 * published by the Free Software Foundation; either version 2 of 12 * the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22 * MA 02111-1307 USA 23 */ 24 25 #define GRETH_FD 0x10 26 #define GRETH_RESET 0x40 27 #define GRETH_MII_BUSY 0x8 28 #define GRETH_MII_NVALID 0x10 29 30 /* MII registers */ 31 #define GRETH_MII_EXTADV_1000FD 0x00000200 32 #define GRETH_MII_EXTADV_1000HD 0x00000100 33 #define GRETH_MII_EXTPRT_1000FD 0x00000800 34 #define GRETH_MII_EXTPRT_1000HD 0x00000400 35 36 #define GRETH_MII_100T4 0x00000200 37 #define GRETH_MII_100TXFD 0x00000100 38 #define GRETH_MII_100TXHD 0x00000080 39 #define GRETH_MII_10FD 0x00000040 40 #define GRETH_MII_10HD 0x00000020 41 42 #define GRETH_BD_EN 0x800 43 #define GRETH_BD_WR 0x1000 44 #define GRETH_BD_IE 0x2000 45 #define GRETH_BD_LEN 0x7FF 46 47 #define GRETH_TXEN 0x1 48 #define GRETH_INT_TX 0x8 49 #define GRETH_TXI 0x4 50 #define GRETH_TXBD_STATUS 0x0001C000 51 #define GRETH_TXBD_MORE 0x20000 52 #define GRETH_TXBD_IPCS 0x40000 53 #define GRETH_TXBD_TCPCS 0x80000 54 #define GRETH_TXBD_UDPCS 0x100000 55 #define GRETH_TXBD_ERR_LC 0x10000 56 #define GRETH_TXBD_ERR_UE 0x4000 57 #define GRETH_TXBD_ERR_AL 0x8000 58 #define GRETH_TXBD_NUM 128 59 #define GRETH_TXBD_NUM_MASK (GRETH_TXBD_NUM-1) 60 #define GRETH_TX_BUF_SIZE 2048 61 62 #define GRETH_INT_RX 0x4 63 #define GRETH_RXEN 0x2 64 #define GRETH_RXI 0x8 65 #define GRETH_RXBD_STATUS 0xFFFFC000 66 #define GRETH_RXBD_ERR_AE 0x4000 67 #define GRETH_RXBD_ERR_FT 0x8000 68 #define GRETH_RXBD_ERR_CRC 0x10000 69 #define GRETH_RXBD_ERR_OE 0x20000 70 #define GRETH_RXBD_ERR_LE 0x40000 71 #define GRETH_RXBD_IP_DEC 0x80000 72 #define GRETH_RXBD_IP_CSERR 0x100000 73 #define GRETH_RXBD_UDP_DEC 0x200000 74 #define GRETH_RXBD_UDP_CSERR 0x400000 75 #define GRETH_RXBD_TCP_DEC 0x800000 76 #define GRETH_RXBD_TCP_CSERR 0x1000000 77 78 #define GRETH_RXBD_NUM 128 79 #define GRETH_RXBD_NUM_MASK (GRETH_RXBD_NUM-1) 80 #define GRETH_RX_BUF_SIZE 2048 81 82 /* Ethernet configuration registers */ 83 typedef struct _greth_regs { 84 volatile unsigned int control; 85 volatile unsigned int status; 86 volatile unsigned int esa_msb; 87 volatile unsigned int esa_lsb; 88 volatile unsigned int mdio; 89 volatile unsigned int tx_desc_p; 90 volatile unsigned int rx_desc_p; 91 } greth_regs; 92 93 /* Ethernet buffer descriptor */ 94 typedef struct _greth_bd { 95 volatile unsigned int stat; 96 unsigned int addr; /* Buffer address not changed by HW */ 97 } greth_bd; 98