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Daniel Hellstromc2b7da52008-03-28 20:22:53 +01001/* Gaisler.com GRETH 10/100/1000 Ethernet MAC driver
2 *
3 * (C) Copyright 2007
4 * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
5 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02006 * SPDX-License-Identifier: GPL-2.0+
Daniel Hellstromc2b7da52008-03-28 20:22:53 +01007 */
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 */
67typedef 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 */
78typedef struct _greth_bd {
79 volatile unsigned int stat;
80 unsigned int addr; /* Buffer address not changed by HW */
81} greth_bd;