aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/ixp2000/enp2611.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ixp2000/enp2611.c')
-rw-r--r--drivers/net/ixp2000/enp2611.c232
1 files changed, 232 insertions, 0 deletions
diff --git a/drivers/net/ixp2000/enp2611.c b/drivers/net/ixp2000/enp2611.c
new file mode 100644
index 00000000000..34a6cfd1793
--- /dev/null
+++ b/drivers/net/ixp2000/enp2611.c
@@ -0,0 +1,232 @@
1/*
2 * IXP2400 MSF network device driver for the Radisys ENP2611
3 * Copyright (C) 2004, 2005 Lennert Buytenhek <buytenh@wantstofly.org>
4 * Dedicated to Marija Kulikova.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12#include <linux/module.h>
13#include <linux/kernel.h>
14#include <linux/netdevice.h>
15#include <linux/etherdevice.h>
16#include <linux/init.h>
17#include <linux/moduleparam.h>
18#include <asm/hardware/uengine.h>
19#include <asm/mach-types.h>
20#include <asm/io.h>
21#include "ixpdev.h"
22#include "caleb.h"
23#include "ixp2400-msf.h"
24#include "pm3386.h"
25
26/***********************************************************************
27 * The Radisys ENP2611 is a PCI form factor board with three SFP GBIC
28 * slots, connected via two PMC/Sierra 3386s and an SPI-3 bridge FPGA
29 * to the IXP2400.
30 *
31 * +-------------+
32 * SFP GBIC #0 ---+ | +---------+
33 * | PM3386 #0 +-------+ |
34 * SFP GBIC #1 ---+ | | "Caleb" | +---------+
35 * +-------------+ | | | |
36 * | SPI-3 +---------+ IXP2400 |
37 * +-------------+ | bridge | | |
38 * SFP GBIC #2 ---+ | | FPGA | +---------+
39 * | PM3386 #1 +-------+ |
40 * | | +---------+
41 * +-------------+
42 * ^ ^ ^
43 * | 1.25Gbaud | 104MHz | 104MHz
44 * | SERDES ea. | SPI-3 ea. | SPI-3
45 *
46 ***********************************************************************/
47static struct ixp2400_msf_parameters enp2611_msf_parameters =
48{
49 .rx_mode = IXP2400_RX_MODE_UTOPIA_POS |
50 IXP2400_RX_MODE_1x32 |
51 IXP2400_RX_MODE_MPHY |
52 IXP2400_RX_MODE_MPHY_32 |
53 IXP2400_RX_MODE_MPHY_POLLED_STATUS |
54 IXP2400_RX_MODE_MPHY_LEVEL3 |
55 IXP2400_RX_MODE_RBUF_SIZE_64,
56
57 .rxclk01_multiplier = IXP2400_PLL_MULTIPLIER_16,
58
59 .rx_poll_ports = 3,
60
61 .rx_channel_mode = {
62 IXP2400_PORT_RX_MODE_MASTER |
63 IXP2400_PORT_RX_MODE_POS_PHY |
64 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
65 IXP2400_PORT_RX_MODE_ODD_PARITY |
66 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
67
68 IXP2400_PORT_RX_MODE_MASTER |
69 IXP2400_PORT_RX_MODE_POS_PHY |
70 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
71 IXP2400_PORT_RX_MODE_ODD_PARITY |
72 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
73
74 IXP2400_PORT_RX_MODE_MASTER |
75 IXP2400_PORT_RX_MODE_POS_PHY |
76 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
77 IXP2400_PORT_RX_MODE_ODD_PARITY |
78 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE,
79
80 IXP2400_PORT_RX_MODE_MASTER |
81 IXP2400_PORT_RX_MODE_POS_PHY |
82 IXP2400_PORT_RX_MODE_POS_PHY_L3 |
83 IXP2400_PORT_RX_MODE_ODD_PARITY |
84 IXP2400_PORT_RX_MODE_2_CYCLE_DECODE
85 },
86
87 .tx_mode = IXP2400_TX_MODE_UTOPIA_POS |
88 IXP2400_TX_MODE_1x32 |
89 IXP2400_TX_MODE_MPHY |
90 IXP2400_TX_MODE_MPHY_32 |
91 IXP2400_TX_MODE_MPHY_POLLED_STATUS |
92 IXP2400_TX_MODE_MPHY_LEVEL3 |
93 IXP2400_TX_MODE_TBUF_SIZE_64,
94
95 .txclk01_multiplier = IXP2400_PLL_MULTIPLIER_16,
96
97 .tx_poll_ports = 3,
98
99 .tx_channel_mode = {
100 IXP2400_PORT_TX_MODE_MASTER |
101 IXP2400_PORT_TX_MODE_POS_PHY |
102 IXP2400_PORT_TX_MODE_ODD_PARITY |
103 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
104
105 IXP2400_PORT_TX_MODE_MASTER |
106 IXP2400_PORT_TX_MODE_POS_PHY |
107 IXP2400_PORT_TX_MODE_ODD_PARITY |
108 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
109
110 IXP2400_PORT_TX_MODE_MASTER |
111 IXP2400_PORT_TX_MODE_POS_PHY |
112 IXP2400_PORT_TX_MODE_ODD_PARITY |
113 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE,
114
115 IXP2400_PORT_TX_MODE_MASTER |
116 IXP2400_PORT_TX_MODE_POS_PHY |
117 IXP2400_PORT_TX_MODE_ODD_PARITY |
118 IXP2400_PORT_TX_MODE_2_CYCLE_DECODE
119 }
120};
121
122static struct net_device *nds[3];
123static struct timer_list link_check_timer;
124
125/* @@@ Poll the SFP moddef0 line too. */
126/* @@@ Try to use the pm3386 DOOL interrupt as well. */
127static void enp2611_check_link_status(unsigned long __dummy)
128{
129 int i;
130
131 for (i = 0; i < 3; i++) {
132 struct net_device *dev;
133 int status;
134
135 dev = nds[i];
136 if (dev == NULL)
137 continue;
138
139 status = pm3386_is_link_up(i);
140 if (status && !netif_carrier_ok(dev)) {
141 /* @@@ Should report autonegotiation status. */
142 printk(KERN_INFO "%s: NIC Link is Up\n", dev->name);
143
144 pm3386_enable_tx(i);
145 caleb_enable_tx(i);
146 netif_carrier_on(dev);
147 } else if (!status && netif_carrier_ok(dev)) {
148 printk(KERN_INFO "%s: NIC Link is Down\n", dev->name);
149
150 netif_carrier_off(dev);
151 caleb_disable_tx(i);
152 pm3386_disable_tx(i);
153 }
154 }
155
156 link_check_timer.expires = jiffies + HZ / 10;
157 add_timer(&link_check_timer);
158}
159
160static void enp2611_set_port_admin_status(int port, int up)
161{
162 if (up) {
163 caleb_enable_rx(port);
164
165 pm3386_set_carrier(port, 1);
166 pm3386_enable_rx(port);
167 } else {
168 caleb_disable_tx(port);
169 pm3386_disable_tx(port);
170 /* @@@ Flush out pending packets. */
171 pm3386_set_carrier(port, 0);
172
173 pm3386_disable_rx(port);
174 caleb_disable_rx(port);
175 }
176}
177
178static int __init enp2611_init_module(void)
179{
180 int ports;
181 int i;
182
183 if (!machine_is_enp2611())
184 return -ENODEV;
185
186 caleb_reset();
187 pm3386_reset();
188
189 ports = pm3386_port_count();
190 for (i = 0; i < ports; i++) {
191 nds[i] = ixpdev_alloc(i, sizeof(struct ixpdev_priv));
192 if (nds[i] == NULL) {
193 while (--i >= 0)
194 free_netdev(nds[i]);
195 return -ENOMEM;
196 }
197
198 pm3386_init_port(i);
199 pm3386_get_mac(i, nds[i]->dev_addr);
200 }
201
202 ixp2400_msf_init(&enp2611_msf_parameters);
203
204 if (ixpdev_init(ports, nds, enp2611_set_port_admin_status)) {
205 for (i = 0; i < ports; i++)
206 if (nds[i])
207 free_netdev(nds[i]);
208 return -EINVAL;
209 }
210
211 init_timer(&link_check_timer);
212 link_check_timer.function = enp2611_check_link_status;
213 link_check_timer.expires = jiffies;
214 add_timer(&link_check_timer);
215
216 return 0;
217}
218
219static void __exit enp2611_cleanup_module(void)
220{
221 int i;
222
223 del_timer_sync(&link_check_timer);
224
225 ixpdev_deinit();
226 for (i = 0; i < 3; i++)
227 free_netdev(nds[i]);
228}
229
230module_init(enp2611_init_module);
231module_exit(enp2611_cleanup_module);
232MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2025-08-11 09:32:56 -0400