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1/*
2 * B53 common definitions
3 *
4 * Copyright (C) 2011-2013 Jonas Gorski <jogo@openwrt.org>
5 *
6 * Permission to use, copy, modify, and/or distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19#ifndef __B53_PRIV_H
20#define __B53_PRIV_H
21
22#include <linux/kernel.h>
23#include <linux/mutex.h>
24#include <linux/phy.h>
25#include <net/dsa.h>
26
27#include "b53_regs.h"
28
29struct b53_device;
30struct net_device;
31
32struct b53_io_ops {
33 int (*read8)(struct b53_device *dev, u8 page, u8 reg, u8 *value);
34 int (*read16)(struct b53_device *dev, u8 page, u8 reg, u16 *value);
35 int (*read32)(struct b53_device *dev, u8 page, u8 reg, u32 *value);
36 int (*read48)(struct b53_device *dev, u8 page, u8 reg, u64 *value);
37 int (*read64)(struct b53_device *dev, u8 page, u8 reg, u64 *value);
38 int (*write8)(struct b53_device *dev, u8 page, u8 reg, u8 value);
39 int (*write16)(struct b53_device *dev, u8 page, u8 reg, u16 value);
40 int (*write32)(struct b53_device *dev, u8 page, u8 reg, u32 value);
41 int (*write48)(struct b53_device *dev, u8 page, u8 reg, u64 value);
42 int (*write64)(struct b53_device *dev, u8 page, u8 reg, u64 value);
43 int (*phy_read16)(struct b53_device *dev, int addr, int reg, u16 *value);
44 int (*phy_write16)(struct b53_device *dev, int addr, int reg, u16 value);
45};
46
47enum {
48 BCM5325_DEVICE_ID = 0x25,
49 BCM5365_DEVICE_ID = 0x65,
50 BCM5395_DEVICE_ID = 0x95,
51 BCM5397_DEVICE_ID = 0x97,
52 BCM5398_DEVICE_ID = 0x98,
53 BCM53115_DEVICE_ID = 0x53115,
54 BCM53125_DEVICE_ID = 0x53125,
55 BCM53128_DEVICE_ID = 0x53128,
56 BCM63XX_DEVICE_ID = 0x6300,
57 BCM53010_DEVICE_ID = 0x53010,
58 BCM53011_DEVICE_ID = 0x53011,
59 BCM53012_DEVICE_ID = 0x53012,
60 BCM53018_DEVICE_ID = 0x53018,
61 BCM53019_DEVICE_ID = 0x53019,
62 BCM58XX_DEVICE_ID = 0x5800,
63 BCM7445_DEVICE_ID = 0x7445,
64};
65
66#define B53_N_PORTS 9
67#define B53_N_PORTS_25 6
68
69struct b53_port {
70 u16 vlan_ctl_mask;
71 struct net_device *bridge_dev;
72};
73
74struct b53_vlan {
75 u16 members;
76 u16 untag;
77 bool valid;
78};
79
80struct b53_device {
81 struct dsa_switch *ds;
82 struct b53_platform_data *pdata;
83 const char *name;
84
85 struct mutex reg_mutex;
86 struct mutex stats_mutex;
87 const struct b53_io_ops *ops;
88
89 /* chip specific data */
90 u32 chip_id;
91 u8 core_rev;
92 u8 vta_regs[3];
93 u8 duplex_reg;
94 u8 jumbo_pm_reg;
95 u8 jumbo_size_reg;
96 int reset_gpio;
97 u8 num_arl_entries;
98
99 /* used ports mask */
100 u16 enabled_ports;
101 unsigned int cpu_port;
102
103 /* connect specific data */
104 u8 current_page;
105 struct device *dev;
106
107 /* Master MDIO bus we got probed from */
108 struct mii_bus *bus;
109
110 void *priv;
111
112 /* run time configuration */
113 bool enable_jumbo;
114
115 unsigned int num_vlans;
116 struct b53_vlan *vlans;
117 unsigned int num_ports;
118 struct b53_port *ports;
119};
120
121#define b53_for_each_port(dev, i) \
122 for (i = 0; i < B53_N_PORTS; i++) \
123 if (dev->enabled_ports & BIT(i))
124
125
126static inline int is5325(struct b53_device *dev)
127{
128 return dev->chip_id == BCM5325_DEVICE_ID;
129}
130
131static inline int is5365(struct b53_device *dev)
132{
133#ifdef CONFIG_BCM47XX
134 return dev->chip_id == BCM5365_DEVICE_ID;
135#else
136 return 0;
137#endif
138}
139
140static inline int is5397_98(struct b53_device *dev)
141{
142 return dev->chip_id == BCM5397_DEVICE_ID ||
143 dev->chip_id == BCM5398_DEVICE_ID;
144}
145
146static inline int is539x(struct b53_device *dev)
147{
148 return dev->chip_id == BCM5395_DEVICE_ID ||
149 dev->chip_id == BCM5397_DEVICE_ID ||
150 dev->chip_id == BCM5398_DEVICE_ID;
151}
152
153static inline int is531x5(struct b53_device *dev)
154{
155 return dev->chip_id == BCM53115_DEVICE_ID ||
156 dev->chip_id == BCM53125_DEVICE_ID ||
157 dev->chip_id == BCM53128_DEVICE_ID;
158}
159
160static inline int is63xx(struct b53_device *dev)
161{
162#ifdef CONFIG_BCM63XX
163 return dev->chip_id == BCM63XX_DEVICE_ID;
164#else
165 return 0;
166#endif
167}
168
169static inline int is5301x(struct b53_device *dev)
170{
171 return dev->chip_id == BCM53010_DEVICE_ID ||
172 dev->chip_id == BCM53011_DEVICE_ID ||
173 dev->chip_id == BCM53012_DEVICE_ID ||
174 dev->chip_id == BCM53018_DEVICE_ID ||
175 dev->chip_id == BCM53019_DEVICE_ID;
176}
177
178static inline int is58xx(struct b53_device *dev)
179{
180 return dev->chip_id == BCM58XX_DEVICE_ID ||
181 dev->chip_id == BCM7445_DEVICE_ID;
182}
183
184#define B53_CPU_PORT_25 5
185#define B53_CPU_PORT 8
186
187static inline int is_cpu_port(struct b53_device *dev, int port)
188{
189 return dev->cpu_port;
190}
191
192struct b53_device *b53_switch_alloc(struct device *base,
193 const struct b53_io_ops *ops,
194 void *priv);
195
196int b53_switch_detect(struct b53_device *dev);
197
198int b53_switch_register(struct b53_device *dev);
199
200static inline void b53_switch_remove(struct b53_device *dev)
201{
202 dsa_unregister_switch(dev->ds);
203}
204
205static inline int b53_read8(struct b53_device *dev, u8 page, u8 reg, u8 *val)
206{
207 int ret;
208
209 mutex_lock(&dev->reg_mutex);
210 ret = dev->ops->read8(dev, page, reg, val);
211 mutex_unlock(&dev->reg_mutex);
212
213 return ret;
214}
215
216static inline int b53_read16(struct b53_device *dev, u8 page, u8 reg, u16 *val)
217{
218 int ret;
219
220 mutex_lock(&dev->reg_mutex);
221 ret = dev->ops->read16(dev, page, reg, val);
222 mutex_unlock(&dev->reg_mutex);
223
224 return ret;
225}
226
227static inline int b53_read32(struct b53_device *dev, u8 page, u8 reg, u32 *val)
228{
229 int ret;
230
231 mutex_lock(&dev->reg_mutex);
232 ret = dev->ops->read32(dev, page, reg, val);
233 mutex_unlock(&dev->reg_mutex);
234
235 return ret;
236}
237
238static inline int b53_read48(struct b53_device *dev, u8 page, u8 reg, u64 *val)
239{
240 int ret;
241
242 mutex_lock(&dev->reg_mutex);
243 ret = dev->ops->read48(dev, page, reg, val);
244 mutex_unlock(&dev->reg_mutex);
245
246 return ret;
247}
248
249static inline int b53_read64(struct b53_device *dev, u8 page, u8 reg, u64 *val)
250{
251 int ret;
252
253 mutex_lock(&dev->reg_mutex);
254 ret = dev->ops->read64(dev, page, reg, val);
255 mutex_unlock(&dev->reg_mutex);
256
257 return ret;
258}
259
260static inline int b53_write8(struct b53_device *dev, u8 page, u8 reg, u8 value)
261{
262 int ret;
263
264 mutex_lock(&dev->reg_mutex);
265 ret = dev->ops->write8(dev, page, reg, value);
266 mutex_unlock(&dev->reg_mutex);
267
268 return ret;
269}
270
271static inline int b53_write16(struct b53_device *dev, u8 page, u8 reg,
272 u16 value)
273{
274 int ret;
275
276 mutex_lock(&dev->reg_mutex);
277 ret = dev->ops->write16(dev, page, reg, value);
278 mutex_unlock(&dev->reg_mutex);
279
280 return ret;
281}
282
283static inline int b53_write32(struct b53_device *dev, u8 page, u8 reg,
284 u32 value)
285{
286 int ret;
287
288 mutex_lock(&dev->reg_mutex);
289 ret = dev->ops->write32(dev, page, reg, value);
290 mutex_unlock(&dev->reg_mutex);
291
292 return ret;
293}
294
295static inline int b53_write48(struct b53_device *dev, u8 page, u8 reg,
296 u64 value)
297{
298 int ret;
299
300 mutex_lock(&dev->reg_mutex);
301 ret = dev->ops->write48(dev, page, reg, value);
302 mutex_unlock(&dev->reg_mutex);
303
304 return ret;
305}
306
307static inline int b53_write64(struct b53_device *dev, u8 page, u8 reg,
308 u64 value)
309{
310 int ret;
311
312 mutex_lock(&dev->reg_mutex);
313 ret = dev->ops->write64(dev, page, reg, value);
314 mutex_unlock(&dev->reg_mutex);
315
316 return ret;
317}
318
319struct b53_arl_entry {
320 u8 port;
321 u8 mac[ETH_ALEN];
322 u16 vid;
323 u8 is_valid:1;
324 u8 is_age:1;
325 u8 is_static:1;
326};
327
328static inline void b53_mac_from_u64(u64 src, u8 *dst)
329{
330 unsigned int i;
331
332 for (i = 0; i < ETH_ALEN; i++)
333 dst[ETH_ALEN - 1 - i] = (src >> (8 * i)) & 0xff;
334}
335
336static inline u64 b53_mac_to_u64(const u8 *src)
337{
338 unsigned int i;
339 u64 dst = 0;
340
341 for (i = 0; i < ETH_ALEN; i++)
342 dst |= (u64)src[ETH_ALEN - 1 - i] << (8 * i);
343
344 return dst;
345}
346
347static inline void b53_arl_to_entry(struct b53_arl_entry *ent,
348 u64 mac_vid, u32 fwd_entry)
349{
350 memset(ent, 0, sizeof(*ent));
351 ent->port = fwd_entry & ARLTBL_DATA_PORT_ID_MASK;
352 ent->is_valid = !!(fwd_entry & ARLTBL_VALID);
353 ent->is_age = !!(fwd_entry & ARLTBL_AGE);
354 ent->is_static = !!(fwd_entry & ARLTBL_STATIC);
355 b53_mac_from_u64(mac_vid, ent->mac);
356 ent->vid = mac_vid >> ARLTBL_VID_S;
357}
358
359static inline void b53_arl_from_entry(u64 *mac_vid, u32 *fwd_entry,
360 const struct b53_arl_entry *ent)
361{
362 *mac_vid = b53_mac_to_u64(ent->mac);
363 *mac_vid |= (u64)(ent->vid & ARLTBL_VID_MASK) << ARLTBL_VID_S;
364 *fwd_entry = ent->port & ARLTBL_DATA_PORT_ID_MASK;
365 if (ent->is_valid)
366 *fwd_entry |= ARLTBL_VALID;
367 if (ent->is_static)
368 *fwd_entry |= ARLTBL_STATIC;
369 if (ent->is_age)
370 *fwd_entry |= ARLTBL_AGE;
371}
372
373#ifdef CONFIG_BCM47XX
374
375#include <linux/bcm47xx_nvram.h>
376#include <bcm47xx_board.h>
377static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
378{
379 enum bcm47xx_board board = bcm47xx_board_get();
380
381 switch (board) {
382 case BCM47XX_BOARD_LINKSYS_WRT300NV11:
383 case BCM47XX_BOARD_LINKSYS_WRT310NV1:
384 return 8;
385 default:
386 return bcm47xx_nvram_gpio_pin("robo_reset");
387 }
388}
389#else
390static inline int b53_switch_get_reset_gpio(struct b53_device *dev)
391{
392 return -ENOENT;
393}
394#endif
395#endif