Root/target/linux/generic-2.6/files/drivers/net/phy/ip17xx.c

1/*
2 * ip17xx.c: Swconfig configuration for IC+ IP17xx switch family
3 *
4 * Copyright (C) 2008 Patrick Horn <patrick.horn@gmail.com>
5 * Copyright (C) 2008, 2010 Martin Mares <mj@ucw.cz>
6 * Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * as published by the Free Software Foundation; either version 2
11 * of the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19#include <linux/kernel.h>
20#include <linux/module.h>
21#include <linux/init.h>
22#include <linux/list.h>
23#include <linux/skbuff.h>
24#include <linux/mii.h>
25#include <linux/phy.h>
26#include <linux/delay.h>
27#include <linux/switch.h>
28#include <linux/device.h>
29
30#define MAX_VLANS 16
31#define MAX_PORTS 9
32#undef DUMP_MII_IO
33
34typedef struct ip17xx_reg {
35    u16 p; // phy
36    u16 m; // mii
37} reg;
38typedef char bitnum;
39
40#define NOTSUPPORTED {-1,-1}
41
42#define REG_SUPP(x) (((x).m != ((u16)-1)) && ((x).p != (u16)-1))
43
44struct ip17xx_state;
45
46/*********** CONSTANTS ***********/
47struct register_mappings {
48    char *NAME;
49    u16 MODEL_NO; // Compare to bits 4-9 of MII register 0,3.
50    bitnum NUM_PORTS;
51    bitnum CPU_PORT;
52
53/* The default VLAN for each port.
54     Default: 0x0001 for Ports 0,1,2,3
55          0x0002 for Ports 4,5 */
56    reg VLAN_DEFAULT_TAG_REG[MAX_PORTS];
57
58/* These ports are tagged.
59     Default: 0x00 */
60    reg ADD_TAG_REG;
61    reg REMOVE_TAG_REG;
62    bitnum ADD_TAG_BIT[MAX_PORTS];
63/* These ports are untagged.
64     Default: 0x00 (i.e. do not alter any VLAN tags...)
65     Maybe set to 0 if user disables VLANs. */
66    bitnum REMOVE_TAG_BIT[MAX_PORTS];
67
68/* Port M and Port N are on the same VLAN.
69     Default: All ports on all VLANs. */
70// Use register {29, 19+N/2}
71    reg VLAN_LOOKUP_REG;
72// Port 5 uses register {30, 18} but same as odd bits.
73    reg VLAN_LOOKUP_REG_5; // in a different register on IP175C.
74    bitnum VLAN_LOOKUP_EVEN_BIT[MAX_PORTS];
75    bitnum VLAN_LOOKUP_ODD_BIT[MAX_PORTS];
76
77/* This VLAN corresponds to which ports.
78     Default: 0x2f,0x30,0x3f,0x3f... */
79    reg TAG_VLAN_MASK_REG;
80    bitnum TAG_VLAN_MASK_EVEN_BIT[MAX_PORTS];
81    bitnum TAG_VLAN_MASK_ODD_BIT[MAX_PORTS];
82
83    int RESET_VAL;
84    reg RESET_REG;
85
86    reg MODE_REG;
87    int MODE_VAL;
88
89/* General flags */
90    reg ROUTER_CONTROL_REG;
91    reg VLAN_CONTROL_REG;
92    bitnum TAG_VLAN_BIT;
93    bitnum ROUTER_EN_BIT;
94    bitnum NUMLAN_GROUPS_MAX;
95    bitnum NUMLAN_GROUPS_BIT;
96
97    reg MII_REGISTER_EN;
98    bitnum MII_REGISTER_EN_BIT;
99
100    // set to 1 for 178C, 0 for 175C.
101    bitnum SIMPLE_VLAN_REGISTERS; // 175C has two vlans per register but 178C has only one.
102
103    // Pointers to functions which manipulate hardware state
104    int (*update_state)(struct ip17xx_state *state);
105    int (*set_vlan_mode)(struct ip17xx_state *state);
106    int (*reset)(struct ip17xx_state *state);
107};
108
109static int ip175c_update_state(struct ip17xx_state *state);
110static int ip175c_set_vlan_mode(struct ip17xx_state *state);
111static int ip175c_reset(struct ip17xx_state *state);
112
113static const struct register_mappings IP178C = {
114    .NAME = "IP178C",
115    .MODEL_NO = 0x18,
116    .VLAN_DEFAULT_TAG_REG = {
117        {30,3},{30,4},{30,5},{30,6},{30,7},{30,8},
118        {30,9},{30,10},{30,11},
119    },
120
121    .ADD_TAG_REG = {30,12},
122    .ADD_TAG_BIT = {0,1,2,3,4,5,6,7,8},
123    .REMOVE_TAG_REG = {30,13},
124    .REMOVE_TAG_BIT = {4,5,6,7,8,9,10,11,12},
125
126    .SIMPLE_VLAN_REGISTERS = 1,
127
128    .VLAN_LOOKUP_REG = {31,0},// +N
129    .VLAN_LOOKUP_REG_5 = NOTSUPPORTED, // not used with SIMPLE_VLAN_REGISTERS
130    .VLAN_LOOKUP_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
131    .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,5,6,7,8},
132
133    .TAG_VLAN_MASK_REG = {30,14}, // +N
134    .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,6,7,8},
135    .TAG_VLAN_MASK_ODD_BIT = {0,1,2,3,4,5,6,7,8},
136
137    .RESET_VAL = 0x55AA,
138    .RESET_REG = {30,0},
139    .MODE_VAL = 0,
140    .MODE_REG = NOTSUPPORTED,
141
142    .ROUTER_CONTROL_REG = {30,30},
143    .ROUTER_EN_BIT = 11,
144    .NUMLAN_GROUPS_MAX = 8,
145    .NUMLAN_GROUPS_BIT = 8, // {0-2}
146
147    .VLAN_CONTROL_REG = {30,13},
148    .TAG_VLAN_BIT = 3,
149
150    .CPU_PORT = 8,
151    .NUM_PORTS = 9,
152
153    .MII_REGISTER_EN = NOTSUPPORTED,
154
155    .update_state = ip175c_update_state,
156    .set_vlan_mode = ip175c_set_vlan_mode,
157    .reset = ip175c_reset,
158};
159
160static const struct register_mappings IP175C = {
161    .NAME = "IP175C",
162    .MODEL_NO = 0x18,
163    .VLAN_DEFAULT_TAG_REG = {
164        {29,24},{29,25},{29,26},{29,27},{29,28},{29,30},
165        NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
166    },
167
168    .ADD_TAG_REG = {29,23},
169    .REMOVE_TAG_REG = {29,23},
170    .ADD_TAG_BIT = {11,12,13,14,15,1,-1,-1,-1},
171    .REMOVE_TAG_BIT = {6,7,8,9,10,0,-1,-1,-1},
172
173    .SIMPLE_VLAN_REGISTERS = 0,
174
175    .VLAN_LOOKUP_REG = {29,19},// +N/2
176    .VLAN_LOOKUP_REG_5 = {30,18},
177    .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,15,-1,-1,-1},
178    .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,7,-1,-1,-1},
179
180    .TAG_VLAN_MASK_REG = {30,1}, // +N/2
181    .TAG_VLAN_MASK_EVEN_BIT = {0,1,2,3,4,5,-1,-1,-1},
182    .TAG_VLAN_MASK_ODD_BIT = {8,9,10,11,12,13,-1,-1,-1},
183
184    .RESET_VAL = 0x175C,
185    .RESET_REG = {30,0},
186    .MODE_VAL = 0x175C,
187    .MODE_REG = {29,31},
188
189    .ROUTER_CONTROL_REG = {30,9},
190    .ROUTER_EN_BIT = 3,
191    .NUMLAN_GROUPS_MAX = 8,
192    .NUMLAN_GROUPS_BIT = 0, // {0-2}
193
194    .VLAN_CONTROL_REG = {30,9},
195    .TAG_VLAN_BIT = 7,
196
197    .NUM_PORTS = 6,
198    .CPU_PORT = 5,
199
200    .MII_REGISTER_EN = NOTSUPPORTED,
201
202    .update_state = ip175c_update_state,
203    .set_vlan_mode = ip175c_set_vlan_mode,
204    .reset = ip175c_reset,
205};
206
207static const struct register_mappings IP175A = {
208    .NAME = "IP175A",
209    .MODEL_NO = 0x05,
210    .VLAN_DEFAULT_TAG_REG = {
211        {0,24},{0,25},{0,26},{0,27},{0,28},NOTSUPPORTED,
212        NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
213    },
214
215    .ADD_TAG_REG = {0,23},
216    .REMOVE_TAG_REG = {0,23},
217    .ADD_TAG_BIT = {11,12,13,14,15,-1,-1,-1,-1},
218    .REMOVE_TAG_BIT = {6,7,8,9,10,-1,-1,-1,-1},
219
220    .SIMPLE_VLAN_REGISTERS = 0,
221
222    // Only programmable via EEPROM
223    .VLAN_LOOKUP_REG = NOTSUPPORTED,// +N/2
224    .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
225    .VLAN_LOOKUP_EVEN_BIT = {8,9,10,11,12,-1,-1,-1,-1},
226    .VLAN_LOOKUP_ODD_BIT = {0,1,2,3,4,-1,-1,-1,-1},
227
228    .TAG_VLAN_MASK_REG = NOTSUPPORTED, // +N/2,
229    .TAG_VLAN_MASK_EVEN_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
230    .TAG_VLAN_MASK_ODD_BIT = {-1,-1,-1,-1,-1,-1,-1,-1,-1},
231
232    .RESET_VAL = -1,
233    .RESET_REG = NOTSUPPORTED,
234    .MODE_VAL = 0,
235    .MODE_REG = NOTSUPPORTED,
236
237    .ROUTER_CONTROL_REG = NOTSUPPORTED,
238    .VLAN_CONTROL_REG = NOTSUPPORTED,
239    .TAG_VLAN_BIT = -1,
240    .ROUTER_EN_BIT = -1,
241    .NUMLAN_GROUPS_MAX = -1,
242    .NUMLAN_GROUPS_BIT = -1, // {0-2}
243
244    .NUM_PORTS = 5,
245    .CPU_PORT = 4,
246
247    .MII_REGISTER_EN = {0, 18},
248    .MII_REGISTER_EN_BIT = 7,
249
250    .update_state = ip175c_update_state,
251    .set_vlan_mode = ip175c_set_vlan_mode,
252    .reset = ip175c_reset,
253};
254
255
256static int ip175d_update_state(struct ip17xx_state *state);
257static int ip175d_set_vlan_mode(struct ip17xx_state *state);
258static int ip175d_reset(struct ip17xx_state *state);
259
260static const struct register_mappings IP175D = {
261    .NAME = "IP175D",
262    .MODEL_NO = 0x18,
263
264    // The IP175D has a completely different interface, so we leave most
265    // of the registers undefined and switch to different code paths.
266
267    .VLAN_DEFAULT_TAG_REG = {
268        NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,
269        NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,
270    },
271
272    .ADD_TAG_REG = NOTSUPPORTED,
273    .REMOVE_TAG_REG = NOTSUPPORTED,
274
275    .SIMPLE_VLAN_REGISTERS = 0,
276
277    .VLAN_LOOKUP_REG = NOTSUPPORTED,
278    .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
279    .TAG_VLAN_MASK_REG = NOTSUPPORTED,
280
281    .RESET_VAL = 0x175D,
282    .RESET_REG = {20,2},
283    .MODE_REG = NOTSUPPORTED,
284
285    .ROUTER_CONTROL_REG = NOTSUPPORTED,
286    .ROUTER_EN_BIT = -1,
287    .NUMLAN_GROUPS_BIT = -1,
288
289    .VLAN_CONTROL_REG = NOTSUPPORTED,
290    .TAG_VLAN_BIT = -1,
291
292    .NUM_PORTS = 6,
293    .CPU_PORT = 5,
294
295    .MII_REGISTER_EN = NOTSUPPORTED,
296
297    .update_state = ip175d_update_state,
298    .set_vlan_mode = ip175d_set_vlan_mode,
299    .reset = ip175d_reset,
300};
301
302struct ip17xx_state {
303    struct switch_dev dev;
304    struct mii_bus *mii_bus;
305    bool registered;
306
307    int router_mode; // ROUTER_EN
308    int vlan_enabled; // TAG_VLAN_EN
309    struct port_state {
310        u16 pvid;
311        unsigned int shareports;
312    } ports[MAX_PORTS];
313    unsigned int add_tag;
314    unsigned int remove_tag;
315    int num_vlans;
316    struct vlan_state {
317        unsigned int ports;
318        unsigned int tag; // VLAN tag (IP175D only)
319    } vlans[MAX_VLANS];
320    const struct register_mappings *regs;
321    reg proc_mii; // phy/reg for the low level register access via swconfig
322
323    char buf[80];
324};
325
326#define get_state(_dev) container_of((_dev), struct ip17xx_state, dev)
327
328static int ip_phy_read(struct ip17xx_state *state, int port, int reg)
329{
330    int val = mdiobus_read(state->mii_bus, port, reg);
331    if (val < 0)
332        pr_warning("IP17xx: Unable to get MII register %d,%d: error %d\n", port, reg, -val);
333#ifdef DUMP_MII_IO
334    else
335        pr_debug("IP17xx: Read MII(%d,%d) -> %04x\n", port, reg, val);
336#endif
337    return val;
338}
339
340static int ip_phy_write(struct ip17xx_state *state, int port, int reg, u16 val)
341{
342    int err;
343
344#ifdef DUMP_MII_IO
345    pr_debug("IP17xx: Write MII(%d,%d) <- %04x\n", port, reg, val);
346#endif
347    err = mdiobus_write(state->mii_bus, port, reg, val);
348    if (err < 0)
349        pr_warning("IP17xx: Unable to write MII register %d,%d: error %d\n", port, reg, -err);
350    return err;
351}
352
353static int ip_phy_write_masked(struct ip17xx_state *state, int port, int reg, unsigned int mask, unsigned int data)
354{
355    int val = ip_phy_read(state, port, reg);
356    if (val < 0)
357        return 0;
358    return ip_phy_write(state, port, reg, (val & ~mask) | data);
359}
360
361static int getPhy(struct ip17xx_state *state, reg mii)
362{
363    if (!REG_SUPP(mii))
364        return -EFAULT;
365    return ip_phy_read(state, mii.p, mii.m);
366}
367
368static int setPhy(struct ip17xx_state *state, reg mii, u16 value)
369{
370    int err;
371
372    if (!REG_SUPP(mii))
373        return -EFAULT;
374    err = ip_phy_write(state, mii.p, mii.m, value);
375    if (err < 0)
376        return err;
377    mdelay(2);
378    getPhy(state, mii);
379    return 0;
380}
381
382
383/**
384 * These two macros are to simplify the mapping of logical bits to the bits in hardware.
385 * NOTE: these macros will return if there is an error!
386 */
387
388#define GET_PORT_BITS(state, bits, addr, bit_lookup) \
389    do { \
390        int i, val = getPhy((state), (addr)); \
391        if (val < 0) \
392            return val; \
393        (bits) = 0; \
394        for (i = 0; i < MAX_PORTS; i++) { \
395            if ((bit_lookup)[i] == -1) continue; \
396            if (val & (1<<(bit_lookup)[i])) \
397                (bits) |= (1<<i); \
398        } \
399    } while (0)
400
401#define SET_PORT_BITS(state, bits, addr, bit_lookup) \
402    do { \
403        int i, val = getPhy((state), (addr)); \
404        if (val < 0) \
405            return val; \
406        for (i = 0; i < MAX_PORTS; i++) { \
407            unsigned int newmask = ((bits)&(1<<i)); \
408            if ((bit_lookup)[i] == -1) continue; \
409            val &= ~(1<<(bit_lookup)[i]); \
410            val |= ((newmask>>i)<<(bit_lookup)[i]); \
411        } \
412        val = setPhy((state), (addr), val); \
413        if (val < 0) \
414            return val; \
415    } while (0)
416
417
418static int get_model(struct ip17xx_state *state)
419{
420    int id1, id2;
421    int oui_id, model_no, rev_no, chip_no;
422
423    id1 = ip_phy_read(state, 0, 2);
424    id2 = ip_phy_read(state, 0, 3);
425    oui_id = (id1 << 6) | ((id2 >> 10) & 0x3f);
426    model_no = (id2 >> 4) & 0x3f;
427    rev_no = id2 & 0xf;
428    pr_debug("IP17xx: Identified oui=%06x model=%02x rev=%X\n", oui_id, model_no, rev_no);
429
430    if (oui_id != 0x0090c3) // No other oui_id should have reached us anyway
431        return -ENODEV;
432
433    if (model_no == IP175A.MODEL_NO) {
434        state->regs = &IP175A;
435    } else if (model_no == IP175C.MODEL_NO) {
436        /*
437         * Several models share the same model_no:
438         * 178C has more PHYs, so we try whether the device responds to a read from PHY5
439         * 175D has a new chip ID register
440         * 175C has neither
441         */
442        if (ip_phy_read(state, 5, 2) == 0x0243) {
443            state->regs = &IP178C;
444        } else {
445            chip_no = ip_phy_read(state, 20, 0);
446            pr_debug("IP17xx: Chip ID register reads %04x\n", chip_no);
447            if (chip_no == 0x175d) {
448                state->regs = &IP175D;
449            } else {
450                state->regs = &IP175C;
451            }
452        }
453    } else {
454        pr_warning("IP17xx: Found an unknown IC+ switch with model number %02x, revision %X.\n", model_no, rev_no);
455        return -EPERM;
456    }
457    return 0;
458}
459
460/*** Low-level functions for the older models ***/
461
462/** Only set vlan and router flags in the switch **/
463static int ip175c_set_flags(struct ip17xx_state *state)
464{
465    int val;
466
467    if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
468        return 0;
469    }
470
471    val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
472    if (val < 0) {
473        return val;
474    }
475    if (state->regs->ROUTER_EN_BIT >= 0) {
476        if (state->router_mode) {
477            val |= (1<<state->regs->ROUTER_EN_BIT);
478        } else {
479            val &= (~(1<<state->regs->ROUTER_EN_BIT));
480        }
481    }
482    if (state->regs->TAG_VLAN_BIT >= 0) {
483        if (state->vlan_enabled) {
484            val |= (1<<state->regs->TAG_VLAN_BIT);
485        } else {
486            val &= (~(1<<state->regs->TAG_VLAN_BIT));
487        }
488    }
489    if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
490        val &= (~((state->regs->NUMLAN_GROUPS_MAX-1)<<state->regs->NUMLAN_GROUPS_BIT));
491        if (state->num_vlans > state->regs->NUMLAN_GROUPS_MAX) {
492            val |= state->regs->NUMLAN_GROUPS_MAX << state->regs->NUMLAN_GROUPS_BIT;
493        } else if (state->num_vlans >= 1) {
494            val |= (state->num_vlans-1) << state->regs->NUMLAN_GROUPS_BIT;
495        }
496    }
497    return setPhy(state, state->regs->ROUTER_CONTROL_REG, val);
498}
499
500/** Set all VLAN and port state. Usually you should call "correct_vlan_state" first. **/
501static int ip175c_set_state(struct ip17xx_state *state)
502{
503    int j;
504    int i;
505    SET_PORT_BITS(state, state->add_tag,
506                  state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
507    SET_PORT_BITS(state, state->remove_tag,
508                  state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
509
510    if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
511        for (j=0; j<state->regs->NUM_PORTS; j++) {
512            reg addr;
513            const bitnum *bit_lookup = (j%2==0)?
514                state->regs->VLAN_LOOKUP_EVEN_BIT:
515                state->regs->VLAN_LOOKUP_ODD_BIT;
516
517            addr = state->regs->VLAN_LOOKUP_REG;
518            if (state->regs->SIMPLE_VLAN_REGISTERS) {
519                addr.m += j;
520            } else {
521                switch (j) {
522                case 0:
523                case 1:
524                    break;
525                case 2:
526                case 3:
527                    addr.m+=1;
528                    break;
529                case 4:
530                    addr.m+=2;
531                    break;
532                case 5:
533                    addr = state->regs->VLAN_LOOKUP_REG_5;
534                    break;
535                default:
536                    addr.m = -1; // shouldn't get here, but...
537                    break;
538                }
539            }
540            //printf("shareports for %d is %02X\n",j,state->ports[j].shareports);
541            if (REG_SUPP(addr)) {
542                SET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
543            }
544        }
545    }
546    if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
547        for (j=0; j<MAX_VLANS; j++) {
548            reg addr = state->regs->TAG_VLAN_MASK_REG;
549            const bitnum *bit_lookup = (j%2==0)?
550                state->regs->TAG_VLAN_MASK_EVEN_BIT:
551                state->regs->TAG_VLAN_MASK_ODD_BIT;
552            unsigned int vlan_mask;
553            if (state->regs->SIMPLE_VLAN_REGISTERS) {
554                addr.m += j;
555            } else {
556                addr.m += j/2;
557            }
558            vlan_mask = state->vlans[j].ports;
559            SET_PORT_BITS(state, vlan_mask, addr, bit_lookup);
560        }
561    }
562
563    for (i=0; i<MAX_PORTS; i++) {
564        if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
565            int err = setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i],
566                    state->ports[i].pvid);
567            if (err < 0) {
568                return err;
569            }
570        }
571    }
572
573    return ip175c_set_flags(state);
574}
575
576/**
577 * Uses only the VLAN port mask and the add tag mask to generate the other fields:
578 * which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
579 */
580static void ip175c_correct_vlan_state(struct ip17xx_state *state)
581{
582    int i, j;
583    state->num_vlans = 0;
584    for (i=0; i<MAX_VLANS; i++) {
585        if (state->vlans[i].ports != 0) {
586            state->num_vlans = i+1; // Hack -- we need to store the "set" vlans somewhere...
587        }
588    }
589
590    for (i=0; i<state->regs->NUM_PORTS; i++) {
591        unsigned int portmask = (1<<i);
592        if (!state->vlan_enabled) {
593            // Share with everybody!
594            state->ports[i].shareports = (1<<state->regs->NUM_PORTS)-1;
595            continue;
596        }
597        state->ports[i].shareports = portmask;
598        for (j=0; j<MAX_VLANS; j++) {
599            if (state->vlans[j].ports & portmask)
600                state->ports[i].shareports |= state->vlans[j].ports;
601        }
602    }
603}
604
605static int ip175c_update_state(struct ip17xx_state *state)
606{
607    ip175c_correct_vlan_state(state);
608    return ip175c_set_state(state);
609}
610
611static int ip175c_set_vlan_mode(struct ip17xx_state *state)
612{
613    return ip175c_update_state(state);
614}
615
616static int ip175c_reset(struct ip17xx_state *state)
617{
618    int err;
619
620    if (REG_SUPP(state->regs->MODE_REG)) {
621        err = setPhy(state, state->regs->MODE_REG, state->regs->MODE_VAL);
622        if (err < 0)
623            return err;
624        err = getPhy(state, state->regs->MODE_REG);
625        if (err < 0)
626            return err;
627    }
628
629    return ip175c_update_state(state);
630}
631
632/*** Low-level functions for IP175D ***/
633
634static int ip175d_update_state(struct ip17xx_state *state)
635{
636    unsigned int filter_mask = 0;
637    unsigned int ports[16], add[16], rem[16];
638    int i, j;
639    int err = 0;
640
641    for (i = 0; i < 16; i++) {
642        ports[i] = 0;
643        add[i] = 0;
644        rem[i] = 0;
645        if (!state->vlan_enabled) {
646            err |= ip_phy_write(state, 22, 14+i, i+1); // default tags
647            ports[i] = 0x3f;
648            continue;
649        }
650        if (!state->vlans[i].tag) {
651            // Reset the filter
652            err |= ip_phy_write(state, 22, 14+i, 0); // tag
653            continue;
654        }
655        filter_mask |= 1 << i;
656        err |= ip_phy_write(state, 22, 14+i, state->vlans[i].tag);
657        ports[i] = state->vlans[i].ports;
658        for (j = 0; j < 6; j++) {
659            if (ports[i] & (1 << j)) {
660                if (state->add_tag & (1 << j))
661                    add[i] |= 1 << j;
662                if (state->remove_tag & (1 << j))
663                    rem[i] |= 1 << j;
664            }
665        }
666    }
667
668    // Port masks, tag adds and removals
669    for (i = 0; i < 8; i++) {
670        err |= ip_phy_write(state, 23, i, ports[2*i] | (ports[2*i+1] << 8));
671        err |= ip_phy_write(state, 23, 8+i, add[2*i] | (add[2*i+1] << 8));
672        err |= ip_phy_write(state, 23, 16+i, rem[2*i] | (rem[2*i+1] << 8));
673    }
674    err |= ip_phy_write(state, 22, 10, filter_mask);
675
676    // Default VLAN tag for each port
677    for (i = 0; i < 6; i++)
678        err |= ip_phy_write(state, 22, 4+i, state->vlans[state->ports[i].pvid].tag);
679
680    return (err ? -EIO : 0);
681}
682
683static int ip175d_set_vlan_mode(struct ip17xx_state *state)
684{
685    int i;
686    int err = 0;
687
688    if (state->vlan_enabled) {
689        // VLAN classification rules: tag-based VLANs, use VID to classify,
690        // drop packets that cannot be classified.
691        err |= ip_phy_write_masked(state, 22, 0, 0x3fff, 0x003f);
692
693        // Ingress rules: CFI=1 dropped, null VID is untagged, VID=1 passed,
694        // VID=0xfff discarded, admin both tagged and untagged, ingress
695        // filters enabled.
696        err |= ip_phy_write_masked(state, 22, 1, 0x0fff, 0x0c3f);
697
698        // Egress rules: IGMP processing off, keep VLAN header off
699        err |= ip_phy_write_masked(state, 22, 2, 0x0fff, 0x0000);
700    } else {
701        // VLAN classification rules: everything off & clear table
702        err |= ip_phy_write_masked(state, 22, 0, 0xbfff, 0x8000);
703
704        // Ingress and egress rules: set to defaults
705        err |= ip_phy_write_masked(state, 22, 1, 0x0fff, 0x0c3f);
706        err |= ip_phy_write_masked(state, 22, 2, 0x0fff, 0x0000);
707    }
708
709    // Reset default VLAN for each port to 0
710    for (i = 0; i < 6; i++)
711        state->ports[i].pvid = 0;
712
713    err |= ip175d_update_state(state);
714
715    return (err ? -EIO : 0);
716}
717
718static int ip175d_reset(struct ip17xx_state *state)
719{
720    int err = 0;
721
722    // Disable the special tagging mode
723    err |= ip_phy_write_masked(state, 21, 22, 0x0003, 0x0000);
724
725    // Set 802.1q protocol type
726    err |= ip_phy_write(state, 22, 3, 0x8100);
727
728    state->vlan_enabled = 0;
729    err |= ip175d_set_vlan_mode(state);
730
731    return (err ? -EIO : 0);
732}
733
734/*** High-level functions ***/
735
736static int ip17xx_get_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
737{
738    struct ip17xx_state *state = get_state(dev);
739
740    val->value.i = state->vlan_enabled;
741    return 0;
742}
743
744static void ip17xx_reset_vlan_config(struct ip17xx_state *state)
745{
746    int i;
747
748    state->remove_tag = (state->vlan_enabled ? ((1<<state->regs->NUM_PORTS)-1) : 0x0000);
749    state->add_tag = 0x0000;
750    for (i = 0; i < MAX_VLANS; i++) {
751        state->vlans[i].ports = 0x0000;
752        state->vlans[i].tag = (i ? i : 16);
753    }
754    for (i = 0; i < MAX_PORTS; i++)
755        state->ports[i].pvid = 0;
756}
757
758static int ip17xx_set_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
759{
760    struct ip17xx_state *state = get_state(dev);
761    int enable;
762
763    enable = val->value.i;
764    if (state->vlan_enabled == enable) {
765        // Do not change any state.
766        return 0;
767    }
768    state->vlan_enabled = enable;
769
770    // Otherwise, if we are switching state, set fields to a known default.
771    ip17xx_reset_vlan_config(state);
772
773    return state->regs->set_vlan_mode(state);
774}
775
776static int ip17xx_get_ports(struct switch_dev *dev, struct switch_val *val)
777{
778    struct ip17xx_state *state = get_state(dev);
779    int b;
780    int ind;
781    unsigned int ports;
782
783    if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
784        return -EINVAL;
785
786    ports = state->vlans[val->port_vlan].ports;
787    b = 0;
788    ind = 0;
789    while (b < MAX_PORTS) {
790        if (ports&1) {
791            int istagged = ((state->add_tag >> b) & 1);
792            val->value.ports[ind].id = b;
793            val->value.ports[ind].flags = (istagged << SWITCH_PORT_FLAG_TAGGED);
794            ind++;
795        }
796        b++;
797        ports >>= 1;
798    }
799    val->len = ind;
800
801    return 0;
802}
803
804static int ip17xx_set_ports(struct switch_dev *dev, struct switch_val *val)
805{
806    struct ip17xx_state *state = get_state(dev);
807    int i;
808
809    if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
810        return -EINVAL;
811
812    state->vlans[val->port_vlan].ports = 0;
813    for (i = 0; i < val->len; i++) {
814        unsigned int bitmask = (1<<val->value.ports[i].id);
815        state->vlans[val->port_vlan].ports |= bitmask;
816        if (val->value.ports[i].flags & (1<<SWITCH_PORT_FLAG_TAGGED)) {
817            state->add_tag |= bitmask;
818            state->remove_tag &= (~bitmask);
819        } else {
820            state->add_tag &= (~bitmask);
821            state->remove_tag |= bitmask;
822        }
823    }
824
825    return state->regs->update_state(state);
826}
827
828static int ip17xx_apply(struct switch_dev *dev)
829{
830    struct ip17xx_state *state = get_state(dev);
831
832    if (REG_SUPP(state->regs->MII_REGISTER_EN)) {
833        int val = getPhy(state, state->regs->MII_REGISTER_EN);
834        if (val < 0) {
835            return val;
836        }
837        val |= (1<<state->regs->MII_REGISTER_EN_BIT);
838        return setPhy(state, state->regs->MII_REGISTER_EN, val);
839    }
840    return 0;
841}
842
843static int ip17xx_reset(struct switch_dev *dev)
844{
845    struct ip17xx_state *state = get_state(dev);
846    int i, err;
847
848    if (REG_SUPP(state->regs->RESET_REG)) {
849        err = setPhy(state, state->regs->RESET_REG, state->regs->RESET_VAL);
850        if (err < 0)
851            return err;
852        err = getPhy(state, state->regs->RESET_REG);
853
854        /*
855         * Data sheet specifies reset period to be 2 msec.
856         * (I don't see any mention of the 2ms delay in the IP178C spec, only
857         * in IP175C, but it can't hurt.)
858         */
859        mdelay(2);
860    }
861
862    /* reset switch ports */
863    for (i = 0; i < state->regs->NUM_PORTS-1; i++) {
864        err = ip_phy_write(state, i, MII_BMCR, BMCR_RESET);
865        if (err < 0)
866            return err;
867    }
868
869    state->router_mode = 0;
870    state->vlan_enabled = 0;
871    ip17xx_reset_vlan_config(state);
872
873    return state->regs->reset(state);
874}
875
876static int ip17xx_get_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
877{
878    struct ip17xx_state *state = get_state(dev);
879
880    if (state->add_tag & (1<<val->port_vlan)) {
881        if (state->remove_tag & (1<<val->port_vlan))
882            val->value.i = 3; // shouldn't ever happen.
883        else
884            val->value.i = 1;
885    } else {
886        if (state->remove_tag & (1<<val->port_vlan))
887            val->value.i = 0;
888        else
889            val->value.i = 2;
890    }
891    return 0;
892}
893
894static int ip17xx_set_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
895{
896    struct ip17xx_state *state = get_state(dev);
897
898    state->add_tag &= ~(1<<val->port_vlan);
899    state->remove_tag &= ~(1<<val->port_vlan);
900
901    if (val->value.i == 0)
902        state->remove_tag |= (1<<val->port_vlan);
903    if (val->value.i == 1)
904        state->add_tag |= (1<<val->port_vlan);
905
906    return state->regs->update_state(state);
907}
908
909/** Get the current phy address */
910static int ip17xx_get_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
911{
912    struct ip17xx_state *state = get_state(dev);
913
914    val->value.i = state->proc_mii.p;
915    return 0;
916}
917
918/** Set a new phy address for low level access to registers */
919static int ip17xx_set_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
920{
921    struct ip17xx_state *state = get_state(dev);
922    int new_reg = val->value.i;
923
924    if (new_reg < 0 || new_reg > 31)
925        state->proc_mii.p = (u16)-1;
926    else
927        state->proc_mii.p = (u16)new_reg;
928    return 0;
929}
930
931/** Get the current register number */
932static int ip17xx_get_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
933{
934    struct ip17xx_state *state = get_state(dev);
935
936    val->value.i = state->proc_mii.m;
937    return 0;
938}
939
940/** Set a new register address for low level access to registers */
941static int ip17xx_set_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
942{
943    struct ip17xx_state *state = get_state(dev);
944    int new_reg = val->value.i;
945
946    if (new_reg < 0 || new_reg > 31)
947        state->proc_mii.m = (u16)-1;
948    else
949        state->proc_mii.m = (u16)new_reg;
950    return 0;
951}
952
953/** Get the register content of state->proc_mii */
954static int ip17xx_get_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
955{
956    struct ip17xx_state *state = get_state(dev);
957    int retval = -EINVAL;
958    if (REG_SUPP(state->proc_mii))
959        retval = getPhy(state, state->proc_mii);
960
961    if (retval < 0) {
962        return retval;
963    } else {
964        val->value.i = retval;
965        return 0;
966    }
967}
968
969/** Write a value to the register defined by phy/reg above */
970static int ip17xx_set_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
971{
972    struct ip17xx_state *state = get_state(dev);
973    int myval, err = -EINVAL;
974
975    myval = val->value.i;
976    if (myval <= 0xffff && myval >= 0 && REG_SUPP(state->proc_mii)) {
977        err = setPhy(state, state->proc_mii, (u16)myval);
978    }
979    return err;
980}
981
982static int ip17xx_read_name(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
983{
984    struct ip17xx_state *state = get_state(dev);
985    val->value.s = state->regs->NAME; // Just a const pointer, won't be freed by swconfig.
986    return 0;
987}
988
989static int ip17xx_get_tag(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
990{
991    struct ip17xx_state *state = get_state(dev);
992    int vlan = val->port_vlan;
993
994    if (vlan < 0 || vlan >= MAX_VLANS)
995        return -EINVAL;
996
997    val->value.i = state->vlans[vlan].tag;
998    return 0;
999}
1000
1001static int ip17xx_set_tag(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1002{
1003    struct ip17xx_state *state = get_state(dev);
1004    int vlan = val->port_vlan;
1005    int tag = val->value.i;
1006
1007    if (vlan < 0 || vlan >= MAX_VLANS)
1008        return -EINVAL;
1009
1010    if (tag < 0 || tag > 4095)
1011        return -EINVAL;
1012
1013    state->vlans[vlan].tag = tag;
1014    return state->regs->update_state(state);
1015}
1016
1017static int ip17xx_set_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1018{
1019    struct ip17xx_state *state = get_state(dev);
1020    int nr = val->port_vlan;
1021    int ctrl;
1022    int autoneg;
1023    int speed;
1024    if (val->value.i == 100) {
1025        speed = 1;
1026        autoneg = 0;
1027    } else if (val->value.i == 10) {
1028        speed = 0;
1029        autoneg = 0;
1030    } else {
1031        autoneg = 1;
1032        speed = 1;
1033    }
1034
1035    /* Can't set speed for cpu port */
1036    if (nr == state->regs->CPU_PORT)
1037        return -EINVAL;
1038
1039    if (nr >= dev->ports || nr < 0)
1040        return -EINVAL;
1041
1042    ctrl = ip_phy_read(state, nr, 0);
1043    if (ctrl < 0)
1044        return -EIO;
1045
1046    ctrl &= (~(1<<12));
1047    ctrl &= (~(1<<13));
1048    ctrl |= (autoneg<<12);
1049    ctrl |= (speed<<13);
1050
1051    return ip_phy_write(state, nr, 0, ctrl);
1052}
1053
1054static int ip17xx_get_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1055{
1056    struct ip17xx_state *state = get_state(dev);
1057    int nr = val->port_vlan;
1058    int speed, status;
1059
1060    if (nr == state->regs->CPU_PORT) {
1061        val->value.i = 100;
1062        return 0;
1063    }
1064
1065    if (nr >= dev->ports || nr < 0)
1066        return -EINVAL;
1067
1068    status = ip_phy_read(state, nr, 1);
1069    speed = ip_phy_read(state, nr, 18);
1070    if (status < 0 || speed < 0)
1071        return -EIO;
1072
1073    if (status & 4)
1074        val->value.i = ((speed & (1<<11)) ? 100 : 10);
1075    else
1076        val->value.i = 0;
1077
1078    return 0;
1079}
1080
1081static int ip17xx_get_port_status(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1082{
1083    struct ip17xx_state *state = get_state(dev);
1084    int ctrl, speed, status;
1085    int nr = val->port_vlan;
1086    int len;
1087    char *buf = state->buf; // fixed-length at 80.
1088
1089    if (nr == state->regs->CPU_PORT) {
1090        sprintf(buf, "up, 100 Mbps, cpu port");
1091        val->value.s = buf;
1092        return 0;
1093    }
1094
1095    if (nr >= dev->ports || nr < 0)
1096        return -EINVAL;
1097
1098    ctrl = ip_phy_read(state, nr, 0);
1099    status = ip_phy_read(state, nr, 1);
1100    speed = ip_phy_read(state, nr, 18);
1101    if (ctrl < 0 || status < 0 || speed < 0)
1102        return -EIO;
1103
1104    if (status & 4)
1105        len = sprintf(buf, "up, %d Mbps, %s duplex",
1106            ((speed & (1<<11)) ? 100 : 10),
1107            ((speed & (1<<10)) ? "full" : "half"));
1108    else
1109        len = sprintf(buf, "down");
1110
1111    if (ctrl & (1<<12)) {
1112        len += sprintf(buf+len, ", auto-negotiate");
1113        if (!(status & (1<<5)))
1114            len += sprintf(buf+len, " (in progress)");
1115    } else {
1116        len += sprintf(buf+len, ", fixed speed (%d)",
1117            ((ctrl & (1<<13)) ? 100 : 10));
1118    }
1119
1120    buf[len] = '\0';
1121    val->value.s = buf;
1122    return 0;
1123}
1124
1125static int ip17xx_get_pvid(struct switch_dev *dev, int port, int *val)
1126{
1127    struct ip17xx_state *state = get_state(dev);
1128
1129    *val = state->ports[port].pvid;
1130    return 0;
1131}
1132
1133static int ip17xx_set_pvid(struct switch_dev *dev, int port, int val)
1134{
1135    struct ip17xx_state *state = get_state(dev);
1136
1137    if (val < 0 || val >= MAX_VLANS)
1138        return -EINVAL;
1139
1140    state->ports[port].pvid = val;
1141    return state->regs->update_state(state);
1142}
1143
1144
1145enum Ports {
1146    IP17XX_PORT_STATUS,
1147    IP17XX_PORT_LINK,
1148    IP17XX_PORT_TAGGED,
1149    IP17XX_PORT_PVID,
1150};
1151
1152enum Globals {
1153    IP17XX_ENABLE_VLAN,
1154    IP17XX_GET_NAME,
1155    IP17XX_REGISTER_PHY,
1156    IP17XX_REGISTER_MII,
1157    IP17XX_REGISTER_VALUE,
1158    IP17XX_REGISTER_ERRNO,
1159};
1160
1161enum Vlans {
1162    IP17XX_VLAN_TAG,
1163};
1164
1165static const struct switch_attr ip17xx_global[] = {
1166    [IP17XX_ENABLE_VLAN] = {
1167        .id = IP17XX_ENABLE_VLAN,
1168        .type = SWITCH_TYPE_INT,
1169        .name = "enable_vlan",
1170        .description = "Flag to enable or disable VLANs and tagging",
1171        .get = ip17xx_get_enable_vlan,
1172        .set = ip17xx_set_enable_vlan,
1173    },
1174    [IP17XX_GET_NAME] = {
1175        .id = IP17XX_GET_NAME,
1176        .type = SWITCH_TYPE_STRING,
1177        .description = "Returns the type of IC+ chip.",
1178        .name = "name",
1179        .get = ip17xx_read_name,
1180        .set = NULL,
1181    },
1182    /* jal: added for low level debugging etc. */
1183    [IP17XX_REGISTER_PHY] = {
1184        .id = IP17XX_REGISTER_PHY,
1185        .type = SWITCH_TYPE_INT,
1186        .description = "Direct register access: set PHY (0-4, or 29,30,31)",
1187        .name = "phy",
1188        .get = ip17xx_get_phy,
1189        .set = ip17xx_set_phy,
1190    },
1191    [IP17XX_REGISTER_MII] = {
1192        .id = IP17XX_REGISTER_MII,
1193        .type = SWITCH_TYPE_INT,
1194        .description = "Direct register access: set MII register number (0-31)",
1195        .name = "reg",
1196        .get = ip17xx_get_reg,
1197        .set = ip17xx_set_reg,
1198    },
1199    [IP17XX_REGISTER_VALUE] = {
1200        .id = IP17XX_REGISTER_VALUE,
1201        .type = SWITCH_TYPE_INT,
1202        .description = "Direct register access: read/write to register (0-65535)",
1203        .name = "val",
1204        .get = ip17xx_get_val,
1205        .set = ip17xx_set_val,
1206    },
1207};
1208
1209static const struct switch_attr ip17xx_vlan[] = {
1210    [IP17XX_VLAN_TAG] = {
1211        .id = IP17XX_VLAN_TAG,
1212        .type = SWITCH_TYPE_INT,
1213        .description = "VLAN tag (0-4095) [IP175D only]",
1214        .name = "tag",
1215        .get = ip17xx_get_tag,
1216        .set = ip17xx_set_tag,
1217    }
1218};
1219
1220static const struct switch_attr ip17xx_port[] = {
1221    [IP17XX_PORT_STATUS] = {
1222        .id = IP17XX_PORT_STATUS,
1223        .type = SWITCH_TYPE_STRING,
1224        .description = "Returns Detailed port status",
1225        .name = "status",
1226        .get = ip17xx_get_port_status,
1227        .set = NULL,
1228    },
1229    [IP17XX_PORT_LINK] = {
1230        .id = IP17XX_PORT_LINK,
1231        .type = SWITCH_TYPE_INT,
1232        .description = "Link speed. Can write 0 for auto-negotiate, or 10 or 100",
1233        .name = "link",
1234        .get = ip17xx_get_port_speed,
1235        .set = ip17xx_set_port_speed,
1236    },
1237    [IP17XX_PORT_TAGGED] = {
1238        .id = IP17XX_PORT_LINK,
1239        .type = SWITCH_TYPE_INT,
1240        .description = "0 = untag, 1 = add tags, 2 = do not alter (This value is reset if vlans are altered)",
1241        .name = "tagged",
1242        .get = ip17xx_get_tagged,
1243        .set = ip17xx_set_tagged,
1244    },
1245};
1246
1247static const struct switch_dev_ops ip17xx_ops = {
1248    .attr_global = {
1249        .attr = ip17xx_global,
1250        .n_attr = ARRAY_SIZE(ip17xx_global),
1251    },
1252    .attr_port = {
1253        .attr = ip17xx_port,
1254        .n_attr = ARRAY_SIZE(ip17xx_port),
1255    },
1256    .attr_vlan = {
1257        .attr = ip17xx_vlan,
1258        .n_attr = ARRAY_SIZE(ip17xx_vlan),
1259    },
1260
1261    .get_port_pvid = ip17xx_get_pvid,
1262    .set_port_pvid = ip17xx_set_pvid,
1263    .get_vlan_ports = ip17xx_get_ports,
1264    .set_vlan_ports = ip17xx_set_ports,
1265    .apply_config = ip17xx_apply,
1266    .reset_switch = ip17xx_reset,
1267};
1268
1269static int ip17xx_probe(struct phy_device *pdev)
1270{
1271    struct ip17xx_state *state;
1272    struct switch_dev *dev;
1273    int err;
1274
1275    /* We only attach to PHY 0, but use all available PHYs */
1276    if (pdev->addr != 0)
1277        return -ENODEV;
1278
1279    state = kzalloc(sizeof(*state), GFP_KERNEL);
1280    if (!state)
1281        return -ENOMEM;
1282
1283    dev = &state->dev;
1284
1285    pdev->priv = state;
1286    state->mii_bus = pdev->bus;
1287
1288    err = get_model(state);
1289    if (err < 0)
1290        goto error;
1291
1292    dev->vlans = MAX_VLANS;
1293    dev->cpu_port = state->regs->CPU_PORT;
1294    dev->ports = state->regs->NUM_PORTS;
1295    dev->name = state->regs->NAME;
1296    dev->ops = &ip17xx_ops;
1297
1298    pr_info("IP17xx: Found %s at %s\n", dev->name, dev_name(&pdev->dev));
1299    return 0;
1300
1301error:
1302    kfree(state);
1303    return err;
1304}
1305
1306static int ip17xx_config_init(struct phy_device *pdev)
1307{
1308    struct ip17xx_state *state = pdev->priv;
1309    struct net_device *dev = pdev->attached_dev;
1310    int err;
1311
1312    err = register_switch(&state->dev, dev);
1313    if (err < 0)
1314        return err;
1315
1316    state->registered = true;
1317    ip17xx_reset(&state->dev);
1318    return 0;
1319}
1320
1321static void ip17xx_remove(struct phy_device *pdev)
1322{
1323    struct ip17xx_state *state = pdev->priv;
1324
1325    if (state->registered)
1326        unregister_switch(&state->dev);
1327    kfree(state);
1328}
1329
1330static int ip17xx_config_aneg(struct phy_device *pdev)
1331{
1332    return 0;
1333}
1334
1335static int ip17xx_read_status(struct phy_device *pdev)
1336{
1337    pdev->speed = SPEED_100;
1338    pdev->duplex = DUPLEX_FULL;
1339    pdev->pause = pdev->asym_pause = 0;
1340    pdev->link = 1;
1341
1342    return 0;
1343}
1344
1345static struct phy_driver ip17xx_driver = {
1346    .name = "IC+ IP17xx",
1347    .phy_id = 0x02430c00,
1348    .phy_id_mask = 0x0ffffc00,
1349    .features = PHY_BASIC_FEATURES,
1350    .probe = ip17xx_probe,
1351    .remove = ip17xx_remove,
1352    .config_init = ip17xx_config_init,
1353    .config_aneg = ip17xx_config_aneg,
1354    .read_status = ip17xx_read_status,
1355    .driver = { .owner = THIS_MODULE },
1356};
1357
1358static struct phy_driver ip175a_driver = {
1359    .name = "IC+ IP175A",
1360    .phy_id = 0x02430c50,
1361    .phy_id_mask = 0x0ffffff0,
1362    .features = PHY_BASIC_FEATURES,
1363    .probe = ip17xx_probe,
1364    .remove = ip17xx_remove,
1365    .config_init = ip17xx_config_init,
1366    .config_aneg = ip17xx_config_aneg,
1367    .read_status = ip17xx_read_status,
1368    .driver = { .owner = THIS_MODULE },
1369};
1370
1371
1372int __init ip17xx_init(void)
1373{
1374    int ret;
1375
1376    ret = phy_driver_register(&ip175a_driver);
1377    if (ret < 0)
1378        return ret;
1379
1380    return phy_driver_register(&ip17xx_driver);
1381}
1382
1383void __exit ip17xx_exit(void)
1384{
1385    phy_driver_unregister(&ip17xx_driver);
1386    phy_driver_unregister(&ip175a_driver);
1387}
1388
1389MODULE_AUTHOR("Patrick Horn <patrick.horn@gmail.com>");
1390MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
1391MODULE_AUTHOR("Martin Mares <mj@ucw.cz>");
1392MODULE_LICENSE("GPL");
1393
1394module_init(ip17xx_init);
1395module_exit(ip17xx_exit);
1396

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