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8#include <linux/module.h>
9#include <linux/kernel.h>
10#include <linux/types.h>
11#include <linux/interrupt.h>
12#include <linux/ioport.h>
13#include <linux/string.h>
14#include <linux/delay.h>
15#include <linux/init.h>
16#include <linux/errno.h>
17#include <linux/gfp.h>
18
19#include <linux/socket.h>
20#include <linux/route.h>
21#include <linux/netdevice.h>
22#include <linux/etherdevice.h>
23#include <linux/skbuff.h>
24
25#include <asm/io.h>
26#include <asm/pgtable.h>
27#include <asm/mvme147hw.h>
28
29
30
31
32
33#define LANCE_LOG_TX_BUFFERS 1
34#define LANCE_LOG_RX_BUFFERS 3
35
36#include "7990.h"
37
38
39struct m147lance_private {
40 struct lance_private lance;
41 unsigned long ram;
42};
43
44
45
46
47
48
49static int m147lance_open(struct net_device *dev);
50static int m147lance_close(struct net_device *dev);
51static void m147lance_writerap(struct lance_private *lp, unsigned short value);
52static void m147lance_writerdp(struct lance_private *lp, unsigned short value);
53static unsigned short m147lance_readrdp(struct lance_private *lp);
54
55typedef void (*writerap_t)(void *, unsigned short);
56typedef void (*writerdp_t)(void *, unsigned short);
57typedef unsigned short (*readrdp_t)(void *);
58
59static const struct net_device_ops lance_netdev_ops = {
60 .ndo_open = m147lance_open,
61 .ndo_stop = m147lance_close,
62 .ndo_start_xmit = lance_start_xmit,
63 .ndo_set_rx_mode = lance_set_multicast,
64 .ndo_tx_timeout = lance_tx_timeout,
65 .ndo_change_mtu = eth_change_mtu,
66 .ndo_validate_addr = eth_validate_addr,
67 .ndo_set_mac_address = eth_mac_addr,
68};
69
70
71struct net_device * __init mvme147lance_probe(int unit)
72{
73 struct net_device *dev;
74 static int called;
75 static const char name[] = "MVME147 LANCE";
76 struct m147lance_private *lp;
77 u_long *addr;
78 u_long address;
79 int err;
80
81 if (!MACH_IS_MVME147 || called)
82 return ERR_PTR(-ENODEV);
83 called++;
84
85 dev = alloc_etherdev(sizeof(struct m147lance_private));
86 if (!dev)
87 return ERR_PTR(-ENOMEM);
88
89 if (unit >= 0)
90 sprintf(dev->name, "eth%d", unit);
91
92
93 dev->base_addr = (unsigned long)MVME147_LANCE_BASE;
94 dev->netdev_ops = &lance_netdev_ops;
95 dev->dma = 0;
96
97 addr=(u_long *)ETHERNET_ADDRESS;
98 address = *addr;
99 dev->dev_addr[0]=0x08;
100 dev->dev_addr[1]=0x00;
101 dev->dev_addr[2]=0x3e;
102 address=address>>8;
103 dev->dev_addr[5]=address&0xff;
104 address=address>>8;
105 dev->dev_addr[4]=address&0xff;
106 address=address>>8;
107 dev->dev_addr[3]=address&0xff;
108
109 printk("%s: MVME147 at 0x%08lx, irq %d, "
110 "Hardware Address %pM\n",
111 dev->name, dev->base_addr, MVME147_LANCE_IRQ,
112 dev->dev_addr);
113
114 lp = netdev_priv(dev);
115 lp->ram = __get_dma_pages(GFP_ATOMIC, 3);
116 if (!lp->ram)
117 {
118 printk("%s: No memory for LANCE buffers\n", dev->name);
119 free_netdev(dev);
120 return ERR_PTR(-ENOMEM);
121 }
122
123 lp->lance.name = (char*)name;
124 lp->lance.base = dev->base_addr;
125 lp->lance.init_block = (struct lance_init_block *)(lp->ram);
126 lp->lance.lance_init_block = (struct lance_init_block *)(lp->ram);
127 lp->lance.busmaster_regval = LE_C3_BSWP;
128 lp->lance.irq = MVME147_LANCE_IRQ;
129 lp->lance.writerap = (writerap_t)m147lance_writerap;
130 lp->lance.writerdp = (writerdp_t)m147lance_writerdp;
131 lp->lance.readrdp = (readrdp_t)m147lance_readrdp;
132 lp->lance.lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS;
133 lp->lance.lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS;
134 lp->lance.rx_ring_mod_mask = RX_RING_MOD_MASK;
135 lp->lance.tx_ring_mod_mask = TX_RING_MOD_MASK;
136
137 err = register_netdev(dev);
138 if (err) {
139 free_pages(lp->ram, 3);
140 free_netdev(dev);
141 return ERR_PTR(err);
142 }
143
144 return dev;
145}
146
147static void m147lance_writerap(struct lance_private *lp, unsigned short value)
148{
149 out_be16(lp->base + LANCE_RAP, value);
150}
151
152static void m147lance_writerdp(struct lance_private *lp, unsigned short value)
153{
154 out_be16(lp->base + LANCE_RDP, value);
155}
156
157static unsigned short m147lance_readrdp(struct lance_private *lp)
158{
159 return in_be16(lp->base + LANCE_RDP);
160}
161
162static int m147lance_open(struct net_device *dev)
163{
164 int status;
165
166 status = lance_open(dev);
167 if (status)
168 return status;
169
170 m147_pcc->lan_cntrl=0;
171 m147_pcc->lan_cntrl=0x08 | 0x04;
172
173 return 0;
174}
175
176static int m147lance_close(struct net_device *dev)
177{
178
179 m147_pcc->lan_cntrl=0x0;
180 lance_close(dev);
181 return 0;
182}
183
184#ifdef MODULE
185MODULE_LICENSE("GPL");
186
187static struct net_device *dev_mvme147_lance;
188int __init init_module(void)
189{
190 dev_mvme147_lance = mvme147lance_probe(-1);
191 return PTR_RET(dev_mvme147_lance);
192}
193
194void __exit cleanup_module(void)
195{
196 struct m147lance_private *lp = netdev_priv(dev_mvme147_lance);
197 unregister_netdev(dev_mvme147_lance);
198 free_pages(lp->ram, 3);
199 free_netdev(dev_mvme147_lance);
200}
201
202#endif
203