1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* (C) Copyright 2007 Michal Simek
*
* Michal SIMEK <monstr@monstr.eu>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* Based on Xilinx drivers
*
*/
typedef struct {
u32 RegBaseAddress; /* Base address of registers */
u32 DataBaseAddress; /* Base address of data for FIFOs */
} XPacketFifoV100b;
typedef struct {
u32 BaseAddress; /* Base address (of IPIF) */
u32 IsStarted; /* Device is currently started 0-no, 1-yes */
XPacketFifoV100b RecvFifo; /* FIFO used to receive frames */
XPacketFifoV100b SendFifo; /* FIFO used to send frames */
} XEmac;
#define XIIF_V123B_IISR_OFFSET 32UL /* IP interrupt status register */
#define XIIF_V123B_RESET_MASK 0xAUL
#define XIIF_V123B_RESETR_OFFSET 64UL /* reset register */
/* This constant is used with the Reset Register */
#define XPF_RESET_FIFO_MASK 0x0000000A
#define XPF_COUNT_STATUS_REG_OFFSET 4UL
/* * These constants are used with the Occupancy/Vacancy Count Register. This
* register also contains FIFO status */
#define XPF_COUNT_MASK 0x0000FFFF
#define XPF_DEADLOCK_MASK 0x20000000
/* Offset of the MAC registers from the IPIF base address */
#define XEM_REG_OFFSET 0x1100UL
/*
* Register offsets for the Ethernet MAC. Each register is 32 bits.
*/
#define XEM_ECR_OFFSET (XEM_REG_OFFSET + 0x4) /* MAC Control */
#define XEM_SAH_OFFSET (XEM_REG_OFFSET + 0xC) /* Station addr, high */
#define XEM_SAL_OFFSET (XEM_REG_OFFSET + 0x10) /* Station addr, low */
#define XEM_RPLR_OFFSET (XEM_REG_OFFSET + 0x1C) /* Rx packet length */
#define XEM_TPLR_OFFSET (XEM_REG_OFFSET + 0x20) /* Tx packet length */
#define XEM_TSR_OFFSET (XEM_REG_OFFSET + 0x24) /* Tx status */
#define XEM_PFIFO_OFFSET 0x2000UL
#define XEM_PFIFO_TXREG_OFFSET (XEM_PFIFO_OFFSET + 0x0) /* Tx registers */
#define XEM_PFIFO_RXREG_OFFSET (XEM_PFIFO_OFFSET + 0x10) /* Rx registers */
#define XEM_PFIFO_TXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x100) /* Tx keyhole */
#define XEM_PFIFO_RXDATA_OFFSET (XEM_PFIFO_OFFSET + 0x200) /* Rx keyhole */
/*
* EMAC Interrupt Registers (Status and Enable) masks. These registers are
* part of the IPIF IP Interrupt registers
*/
/* A mask for all transmit interrupts, used in polled mode */
#define XEM_EIR_XMIT_ALL_MASK (XEM_EIR_XMIT_DONE_MASK | \
XEM_EIR_XMIT_ERROR_MASK | \
XEM_EIR_XMIT_SFIFO_EMPTY_MASK | \
XEM_EIR_XMIT_LFIFO_FULL_MASK)
#define XEM_EIR_XMIT_DONE_MASK 0x00000001UL /* Xmit complete */
#define XEM_EIR_RECV_DONE_MASK 0x00000002UL /* Recv complete */
#define XEM_EIR_XMIT_ERROR_MASK 0x00000004UL /* Xmit error */
#define XEM_EIR_RECV_ERROR_MASK 0x00000008UL /* Recv error */
#define XEM_EIR_XMIT_SFIFO_EMPTY_MASK 0x00000010UL /* Xmit status fifo empty */
#define XEM_EIR_RECV_LFIFO_EMPTY_MASK 0x00000020UL /* Recv length fifo empty */
#define XEM_EIR_XMIT_LFIFO_FULL_MASK 0x00000040UL /* Xmit length fifo full */
#define XEM_EIR_RECV_LFIFO_OVER_MASK 0x00000080UL /* Recv length fifo
* overrun */
#define XEM_EIR_RECV_LFIFO_UNDER_MASK 0x00000100UL /* Recv length fifo
* underrun */
#define XEM_EIR_XMIT_SFIFO_OVER_MASK 0x00000200UL /* Xmit status fifo
* overrun */
#define XEM_EIR_XMIT_SFIFO_UNDER_MASK 0x00000400UL /* Transmit status fifo
* underrun */
#define XEM_EIR_XMIT_LFIFO_OVER_MASK 0x00000800UL /* Transmit length fifo
* overrun */
#define XEM_EIR_XMIT_LFIFO_UNDER_MASK 0x00001000UL /* Transmit length fifo
* underrun */
#define XEM_EIR_XMIT_PAUSE_MASK 0x00002000UL /* Transmit pause pkt
* received */
/*
* EMAC Control Register (ECR)
*/
#define XEM_ECR_FULL_DUPLEX_MASK 0x80000000UL /* Full duplex mode */
#define XEM_ECR_XMIT_RESET_MASK 0x40000000UL /* Reset transmitter */
#define XEM_ECR_XMIT_ENABLE_MASK 0x20000000UL /* Enable transmitter */
#define XEM_ECR_RECV_RESET_MASK 0x10000000UL /* Reset receiver */
#define XEM_ECR_RECV_ENABLE_MASK 0x08000000UL /* Enable receiver */
#define XEM_ECR_PHY_ENABLE_MASK 0x04000000UL /* Enable PHY */
#define XEM_ECR_XMIT_PAD_ENABLE_MASK 0x02000000UL /* Enable xmit pad
* insert */
#define XEM_ECR_XMIT_FCS_ENABLE_MASK 0x01000000UL /* Enable xmit FCS
* insert */
#define XEM_ECR_UNICAST_ENABLE_MASK 0x00020000UL /* Enable unicast
* addr */
#define XEM_ECR_BROAD_ENABLE_MASK 0x00008000UL /* Enable broadcast
* addr */
/* Transmit Status Register (TSR) */
#define XEM_TSR_EXCESS_DEFERRAL_MASK 0x80000000UL /* Transmit excess deferral */
#define XEM_TSR_LATE_COLLISION_MASK 0x01000000UL /* Transmit late collision */
|
