1 /* Gaisler.com GRETH 10/100/1000 Ethernet MAC driver
4 * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com
6 * SPDX-License-Identifier: GPL-2.0+
10 #define GRETH_RESET 0x40
11 #define GRETH_MII_BUSY 0x8
12 #define GRETH_MII_NVALID 0x10
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
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
26 #define GRETH_BD_EN 0x800
27 #define GRETH_BD_WR 0x1000
28 #define GRETH_BD_IE 0x2000
29 #define GRETH_BD_LEN 0x7FF
31 #define GRETH_TXEN 0x1
32 #define GRETH_INT_TX 0x8
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
46 #define GRETH_INT_RX 0x4
47 #define GRETH_RXEN 0x2
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
62 #define GRETH_RXBD_NUM 128
63 #define GRETH_RXBD_NUM_MASK (GRETH_RXBD_NUM-1)
64 #define GRETH_RX_BUF_SIZE 2048
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;
77 /* Ethernet buffer descriptor */
78 typedef struct _greth_bd {
79 volatile unsigned int stat;
80 unsigned int addr; /* Buffer address not changed by HW */