1 /* Gaisler.com GRETH 10/100/1000 Ethernet MAC driver
4 * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
6 * See file CREDITS for list of people who contributed to this
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.
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.
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,
26 #define GRETH_RESET 0x40
27 #define GRETH_MII_BUSY 0x8
28 #define GRETH_MII_NVALID 0x10
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
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
42 #define GRETH_BD_EN 0x800
43 #define GRETH_BD_WR 0x1000
44 #define GRETH_BD_IE 0x2000
45 #define GRETH_BD_LEN 0x7FF
47 #define GRETH_TXEN 0x1
48 #define GRETH_INT_TX 0x8
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
62 #define GRETH_INT_RX 0x4
63 #define GRETH_RXEN 0x2
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
78 #define GRETH_RXBD_NUM 128
79 #define GRETH_RXBD_NUM_MASK (GRETH_RXBD_NUM-1)
80 #define GRETH_RX_BUF_SIZE 2048
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;
93 /* Ethernet buffer descriptor */
94 typedef struct _greth_bd {
95 volatile unsigned int stat;
96 unsigned int addr; /* Buffer address not changed by HW */