2 * ip17xx.c: Swconfig configuration for IC+ IP17xx switch family
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>
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.
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.
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>
34 typedef struct ip17xx_reg {
40 #define NOTSUPPORTED {-1,-1}
42 #define REG_SUPP(x) (((x).m != ((u16)-1)) && ((x).p != (u16)-1))
46 /*********** CONSTANTS ***********/
47 struct register_mappings {
49 u16 MODEL_NO; // Compare to bits 4-9 of MII register 0,3.
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];
58 /* These ports are tagged.
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];
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}
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];
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];
90 reg ROUTER_CONTROL_REG;
94 bitnum NUMLAN_GROUPS_MAX;
95 bitnum NUMLAN_GROUPS_BIT;
98 bitnum MII_REGISTER_EN_BIT;
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.
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);
109 static int ip175c_update_state(struct ip17xx_state *state);
110 static int ip175c_set_vlan_mode(struct ip17xx_state *state);
111 static int ip175c_reset(struct ip17xx_state *state);
113 static const struct register_mappings IP178C = {
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},
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},
126 .SIMPLE_VLAN_REGISTERS = 1,
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},
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},
140 .MODE_REG = NOTSUPPORTED,
142 .ROUTER_CONTROL_REG = {30,30},
144 .NUMLAN_GROUPS_MAX = 8,
145 .NUMLAN_GROUPS_BIT = 8, // {0-2}
147 .VLAN_CONTROL_REG = {30,13},
153 .MII_REGISTER_EN = NOTSUPPORTED,
155 .update_state = ip175c_update_state,
156 .set_vlan_mode = ip175c_set_vlan_mode,
157 .reset = ip175c_reset,
160 static const struct register_mappings IP175C = {
163 .VLAN_DEFAULT_TAG_REG = {
164 {29,24},{29,25},{29,26},{29,27},{29,28},{29,30},
165 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
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},
173 .SIMPLE_VLAN_REGISTERS = 0,
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},
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},
189 .ROUTER_CONTROL_REG = {30,9},
191 .NUMLAN_GROUPS_MAX = 8,
192 .NUMLAN_GROUPS_BIT = 0, // {0-2}
194 .VLAN_CONTROL_REG = {30,9},
200 .MII_REGISTER_EN = NOTSUPPORTED,
202 .update_state = ip175c_update_state,
203 .set_vlan_mode = ip175c_set_vlan_mode,
204 .reset = ip175c_reset,
207 static const struct register_mappings IP175A = {
210 .VLAN_DEFAULT_TAG_REG = {
211 {0,24},{0,25},{0,26},{0,27},{0,28},NOTSUPPORTED,
212 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED
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},
220 .SIMPLE_VLAN_REGISTERS = 0,
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},
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},
233 .RESET_REG = NOTSUPPORTED,
235 .MODE_REG = NOTSUPPORTED,
237 .ROUTER_CONTROL_REG = NOTSUPPORTED,
238 .VLAN_CONTROL_REG = NOTSUPPORTED,
241 .NUMLAN_GROUPS_MAX = -1,
242 .NUMLAN_GROUPS_BIT = -1, // {0-2}
247 .MII_REGISTER_EN = {0, 18},
248 .MII_REGISTER_EN_BIT = 7,
250 .update_state = ip175c_update_state,
251 .set_vlan_mode = ip175c_set_vlan_mode,
252 .reset = ip175c_reset,
256 static int ip175d_update_state(struct ip17xx_state *state);
257 static int ip175d_set_vlan_mode(struct ip17xx_state *state);
258 static int ip175d_reset(struct ip17xx_state *state);
260 static const struct register_mappings IP175D = {
264 // The IP175D has a completely different interface, so we leave most
265 // of the registers undefined and switch to different code paths.
267 .VLAN_DEFAULT_TAG_REG = {
268 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,
269 NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,NOTSUPPORTED,
272 .ADD_TAG_REG = NOTSUPPORTED,
273 .REMOVE_TAG_REG = NOTSUPPORTED,
275 .SIMPLE_VLAN_REGISTERS = 0,
277 .VLAN_LOOKUP_REG = NOTSUPPORTED,
278 .VLAN_LOOKUP_REG_5 = NOTSUPPORTED,
279 .TAG_VLAN_MASK_REG = NOTSUPPORTED,
283 .MODE_REG = NOTSUPPORTED,
285 .ROUTER_CONTROL_REG = NOTSUPPORTED,
287 .NUMLAN_GROUPS_BIT = -1,
289 .VLAN_CONTROL_REG = NOTSUPPORTED,
295 .MII_REGISTER_EN = NOTSUPPORTED,
297 .update_state = ip175d_update_state,
298 .set_vlan_mode = ip175d_set_vlan_mode,
299 .reset = ip175d_reset,
302 struct ip17xx_state {
303 struct switch_dev dev;
304 struct mii_bus *mii_bus;
307 int router_mode; // ROUTER_EN
308 int vlan_enabled; // TAG_VLAN_EN
311 unsigned int shareports;
313 unsigned int add_tag;
314 unsigned int remove_tag;
318 unsigned int tag; // VLAN tag (IP175D only)
320 const struct register_mappings *regs;
321 reg proc_mii; // phy/reg for the low level register access via swconfig
327 static int ip_phy_read(struct ip17xx_state *state, int port, int reg)
329 int val = mdiobus_read(state->mii_bus, port, reg);
331 pr_warning("IP17xx: Unable to get MII register %d,%d: error %d\n", port, reg, -val);
334 pr_debug("IP17xx: Read MII(%d,%d) -> %04x\n", port, reg, val);
339 static int ip_phy_write(struct ip17xx_state *state, int port, int reg, u16 val)
344 pr_debug("IP17xx: Write MII(%d,%d) <- %04x\n", port, reg, val);
346 err = mdiobus_write(state->mii_bus, port, reg, val);
348 pr_warning("IP17xx: Unable to write MII register %d,%d: error %d\n", port, reg, -err);
352 static int ip_phy_write_masked(struct ip17xx_state *state, int port, int reg, unsigned int mask, unsigned int data)
354 int val = ip_phy_read(state, port, reg);
357 return ip_phy_write(state, port, reg, (val & ~mask) | data);
360 static int getPhy(struct ip17xx_state *state, reg mii)
364 return ip_phy_read(state, mii.p, mii.m);
367 static int setPhy(struct ip17xx_state *state, reg mii, u16 value)
373 err = ip_phy_write(state, mii.p, mii.m, value);
382 * These two macros are to simplify the mapping of logical bits to the bits in hardware.
383 * NOTE: these macros will return if there is an error!
386 #define GET_PORT_BITS(state, bits, addr, bit_lookup) \
388 int i, val = getPhy((state), (addr)); \
392 for (i = 0; i < MAX_PORTS; i++) { \
393 if ((bit_lookup)[i] == -1) continue; \
394 if (val & (1<<(bit_lookup)[i])) \
399 #define SET_PORT_BITS(state, bits, addr, bit_lookup) \
401 int i, val = getPhy((state), (addr)); \
404 for (i = 0; i < MAX_PORTS; i++) { \
405 unsigned int newmask = ((bits)&(1<<i)); \
406 if ((bit_lookup)[i] == -1) continue; \
407 val &= ~(1<<(bit_lookup)[i]); \
408 val |= ((newmask>>i)<<(bit_lookup)[i]); \
410 val = setPhy((state), (addr), val); \
416 static int get_model(struct ip17xx_state *state)
419 int oui_id, model_no, rev_no, chip_no;
421 id1 = ip_phy_read(state, 0, 2);
422 id2 = ip_phy_read(state, 0, 3);
423 oui_id = (id1 << 6) | ((id2 >> 10) & 0x3f);
424 model_no = (id2 >> 4) & 0x3f;
426 pr_debug("IP17xx: Identified oui=%06x model=%02x rev=%X\n", oui_id, model_no, rev_no);
428 if (oui_id != 0x0090c3) // No other oui_id should have reached us anyway
431 if (model_no == IP175A.MODEL_NO) {
432 state->regs = &IP175A;
433 } else if (model_no == IP175C.MODEL_NO) {
435 * Several models share the same model_no:
436 * 178C has more PHYs, so we try whether the device responds to a read from PHY5
437 * 175D has a new chip ID register
440 if (ip_phy_read(state, 5, 2) == 0x0243) {
441 state->regs = &IP178C;
443 chip_no = ip_phy_read(state, 20, 0);
444 pr_debug("IP17xx: Chip ID register reads %04x\n", chip_no);
445 if (chip_no == 0x175d) {
446 state->regs = &IP175D;
448 state->regs = &IP175C;
452 pr_warning("IP17xx: Found an unknown IC+ switch with model number %02x, revision %X.\n", model_no, rev_no);
458 /*** Low-level functions for the older models ***/
460 /** Only set vlan and router flags in the switch **/
461 static int ip175c_set_flags(struct ip17xx_state *state)
465 if (!REG_SUPP(state->regs->ROUTER_CONTROL_REG)) {
469 val = getPhy(state, state->regs->ROUTER_CONTROL_REG);
473 if (state->regs->ROUTER_EN_BIT >= 0) {
474 if (state->router_mode) {
475 val |= (1<<state->regs->ROUTER_EN_BIT);
477 val &= (~(1<<state->regs->ROUTER_EN_BIT));
480 if (state->regs->TAG_VLAN_BIT >= 0) {
481 if (state->vlan_enabled) {
482 val |= (1<<state->regs->TAG_VLAN_BIT);
484 val &= (~(1<<state->regs->TAG_VLAN_BIT));
487 if (state->regs->NUMLAN_GROUPS_BIT >= 0) {
488 val &= (~((state->regs->NUMLAN_GROUPS_MAX-1)<<state->regs->NUMLAN_GROUPS_BIT));
489 if (state->num_vlans > state->regs->NUMLAN_GROUPS_MAX) {
490 val |= state->regs->NUMLAN_GROUPS_MAX << state->regs->NUMLAN_GROUPS_BIT;
491 } else if (state->num_vlans >= 1) {
492 val |= (state->num_vlans-1) << state->regs->NUMLAN_GROUPS_BIT;
495 return setPhy(state, state->regs->ROUTER_CONTROL_REG, val);
498 /** Set all VLAN and port state. Usually you should call "correct_vlan_state" first. **/
499 static int ip175c_set_state(struct ip17xx_state *state)
503 SET_PORT_BITS(state, state->add_tag,
504 state->regs->ADD_TAG_REG, state->regs->ADD_TAG_BIT);
505 SET_PORT_BITS(state, state->remove_tag,
506 state->regs->REMOVE_TAG_REG, state->regs->REMOVE_TAG_BIT);
508 if (REG_SUPP(state->regs->VLAN_LOOKUP_REG)) {
509 for (j=0; j<state->regs->NUM_PORTS; j++) {
511 const bitnum *bit_lookup = (j%2==0)?
512 state->regs->VLAN_LOOKUP_EVEN_BIT:
513 state->regs->VLAN_LOOKUP_ODD_BIT;
515 addr = state->regs->VLAN_LOOKUP_REG;
516 if (state->regs->SIMPLE_VLAN_REGISTERS) {
531 addr = state->regs->VLAN_LOOKUP_REG_5;
534 addr.m = -1; // shouldn't get here, but...
538 //printf("shareports for %d is %02X\n",j,state->ports[j].shareports);
539 if (REG_SUPP(addr)) {
540 SET_PORT_BITS(state, state->ports[j].shareports, addr, bit_lookup);
544 if (REG_SUPP(state->regs->TAG_VLAN_MASK_REG)) {
545 for (j=0; j<MAX_VLANS; j++) {
546 reg addr = state->regs->TAG_VLAN_MASK_REG;
547 const bitnum *bit_lookup = (j%2==0)?
548 state->regs->TAG_VLAN_MASK_EVEN_BIT:
549 state->regs->TAG_VLAN_MASK_ODD_BIT;
550 unsigned int vlan_mask;
551 if (state->regs->SIMPLE_VLAN_REGISTERS) {
556 vlan_mask = state->vlans[j].ports;
557 SET_PORT_BITS(state, vlan_mask, addr, bit_lookup);
561 for (i=0; i<MAX_PORTS; i++) {
562 if (REG_SUPP(state->regs->VLAN_DEFAULT_TAG_REG[i])) {
563 int err = setPhy(state, state->regs->VLAN_DEFAULT_TAG_REG[i],
564 state->ports[i].pvid);
571 return ip175c_set_flags(state);
575 * Uses only the VLAN port mask and the add tag mask to generate the other fields:
576 * which ports are part of the same VLAN, removing vlan tags, and VLAN tag ids.
578 static void ip175c_correct_vlan_state(struct ip17xx_state *state)
581 state->num_vlans = 0;
582 for (i=0; i<MAX_VLANS; i++) {
583 if (state->vlans[i].ports != 0) {
584 state->num_vlans = i+1; // Hack -- we need to store the "set" vlans somewhere...
588 for (i=0; i<state->regs->NUM_PORTS; i++) {
589 unsigned int portmask = (1<<i);
590 if (!state->vlan_enabled) {
591 // Share with everybody!
592 state->ports[i].shareports = (1<<state->regs->NUM_PORTS)-1;
595 state->ports[i].shareports = portmask;
596 for (j=0; j<MAX_VLANS; j++) {
597 if (state->vlans[j].ports & portmask)
598 state->ports[i].shareports |= state->vlans[j].ports;
603 static int ip175c_update_state(struct ip17xx_state *state)
605 ip175c_correct_vlan_state(state);
606 return ip175c_set_state(state);
609 static int ip175c_set_vlan_mode(struct ip17xx_state *state)
611 return ip175c_update_state(state);
614 static int ip175c_reset(struct ip17xx_state *state)
618 if (REG_SUPP(state->regs->MODE_REG)) {
619 err = setPhy(state, state->regs->MODE_REG, state->regs->MODE_VAL);
622 err = getPhy(state, state->regs->MODE_REG);
627 return ip175c_update_state(state);
630 /*** Low-level functions for IP175D ***/
632 static int ip175d_update_state(struct ip17xx_state *state)
634 unsigned int filter_mask = 0;
635 unsigned int ports[16], add[16], rem[16];
639 for (i = 0; i < 16; i++) {
643 if (!state->vlan_enabled) {
644 err |= ip_phy_write(state, 22, 14+i, i+1); // default tags
648 if (!state->vlans[i].tag) {
650 err |= ip_phy_write(state, 22, 14+i, 0); // tag
653 filter_mask |= 1 << i;
654 err |= ip_phy_write(state, 22, 14+i, state->vlans[i].tag);
655 ports[i] = state->vlans[i].ports;
656 for (j = 0; j < 6; j++) {
657 if (ports[i] & (1 << j)) {
658 if (state->add_tag & (1 << j))
660 if (state->remove_tag & (1 << j))
666 // Port masks, tag adds and removals
667 for (i = 0; i < 8; i++) {
668 err |= ip_phy_write(state, 23, i, ports[2*i] | (ports[2*i+1] << 8));
669 err |= ip_phy_write(state, 23, 8+i, add[2*i] | (add[2*i+1] << 8));
670 err |= ip_phy_write(state, 23, 16+i, rem[2*i] | (rem[2*i+1] << 8));
672 err |= ip_phy_write(state, 22, 10, filter_mask);
674 // Default VLAN tag for each port
675 for (i = 0; i < 6; i++)
676 err |= ip_phy_write(state, 22, 4+i, state->vlans[state->ports[i].pvid].tag);
678 return (err ? -EIO : 0);
681 static int ip175d_set_vlan_mode(struct ip17xx_state *state)
686 if (state->vlan_enabled) {
687 // VLAN classification rules: tag-based VLANs, use VID to classify,
688 // drop packets that cannot be classified.
689 err |= ip_phy_write_masked(state, 22, 0, 0x3fff, 0x003f);
691 // Ingress rules: CFI=1 dropped, null VID is untagged, VID=1 passed,
692 // VID=0xfff discarded, admin both tagged and untagged, ingress
694 err |= ip_phy_write_masked(state, 22, 1, 0x0fff, 0x0c3f);
696 // Egress rules: IGMP processing off, keep VLAN header off
697 err |= ip_phy_write_masked(state, 22, 2, 0x0fff, 0x0000);
699 // VLAN classification rules: everything off & clear table
700 err |= ip_phy_write_masked(state, 22, 0, 0xbfff, 0x8000);
702 // Ingress and egress rules: set to defaults
703 err |= ip_phy_write_masked(state, 22, 1, 0x0fff, 0x0c3f);
704 err |= ip_phy_write_masked(state, 22, 2, 0x0fff, 0x0000);
707 // Reset default VLAN for each port to 0
708 for (i = 0; i < 6; i++)
709 state->ports[i].pvid = 0;
711 err |= ip175d_update_state(state);
713 return (err ? -EIO : 0);
716 static int ip175d_reset(struct ip17xx_state *state)
720 // Disable the special tagging mode
721 err |= ip_phy_write_masked(state, 21, 22, 0x0003, 0x0000);
723 // Set 802.1q protocol type
724 err |= ip_phy_write(state, 22, 3, 0x8100);
726 state->vlan_enabled = 0;
727 err |= ip175d_set_vlan_mode(state);
729 return (err ? -EIO : 0);
732 /*** High-level functions ***/
734 static int ip17xx_get_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
736 struct ip17xx_state *state = dev->priv;
738 val->value.i = state->vlan_enabled;
742 static void ip17xx_reset_vlan_config(struct ip17xx_state *state)
746 state->remove_tag = (state->vlan_enabled ? ((1<<state->regs->NUM_PORTS)-1) : 0x0000);
747 state->add_tag = 0x0000;
748 for (i = 0; i < MAX_VLANS; i++) {
749 state->vlans[i].ports = 0x0000;
750 state->vlans[i].tag = (i ? i : 16);
752 for (i = 0; i < MAX_PORTS; i++)
753 state->ports[i].pvid = 0;
756 static int ip17xx_set_enable_vlan(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
758 struct ip17xx_state *state = dev->priv;
761 enable = val->value.i;
762 if (state->vlan_enabled == enable) {
763 // Do not change any state.
766 state->vlan_enabled = enable;
768 // Otherwise, if we are switching state, set fields to a known default.
769 ip17xx_reset_vlan_config(state);
771 return state->regs->set_vlan_mode(state);
774 static int ip17xx_get_ports(struct switch_dev *dev, struct switch_val *val)
776 struct ip17xx_state *state = dev->priv;
781 if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
784 ports = state->vlans[val->port_vlan].ports;
787 while (b < MAX_PORTS) {
789 int istagged = ((state->add_tag >> b) & 1);
790 val->value.ports[ind].id = b;
791 val->value.ports[ind].flags = (istagged << SWITCH_PORT_FLAG_TAGGED);
802 static int ip17xx_set_ports(struct switch_dev *dev, struct switch_val *val)
804 struct ip17xx_state *state = dev->priv;
807 if (val->port_vlan >= dev->vlans || val->port_vlan < 0)
810 state->vlans[val->port_vlan].ports = 0;
811 for (i = 0; i < val->len; i++) {
812 unsigned int bitmask = (1<<val->value.ports[i].id);
813 state->vlans[val->port_vlan].ports |= bitmask;
814 if (val->value.ports[i].flags & (1<<SWITCH_PORT_FLAG_TAGGED)) {
815 state->add_tag |= bitmask;
816 state->remove_tag &= (~bitmask);
818 state->add_tag &= (~bitmask);
819 state->remove_tag |= bitmask;
823 return state->regs->update_state(state);
826 static int ip17xx_apply(struct switch_dev *dev)
828 struct ip17xx_state *state = dev->priv;
830 if (REG_SUPP(state->regs->MII_REGISTER_EN)) {
831 int val = getPhy(state, state->regs->MII_REGISTER_EN);
835 val |= (1<<state->regs->MII_REGISTER_EN_BIT);
836 return setPhy(state, state->regs->MII_REGISTER_EN, val);
841 static int ip17xx_reset(struct switch_dev *dev)
843 struct ip17xx_state *state = dev->priv;
846 if (REG_SUPP(state->regs->RESET_REG)) {
847 err = setPhy(state, state->regs->RESET_REG, state->regs->RESET_VAL);
850 err = getPhy(state, state->regs->RESET_REG);
853 * Data sheet specifies reset period to be 2 msec.
854 * (I don't see any mention of the 2ms delay in the IP178C spec, only
855 * in IP175C, but it can't hurt.)
860 /* reset switch ports */
861 for (i = 0; i < state->regs->NUM_PORTS-1; i++) {
862 err = ip_phy_write(state, i, MII_BMCR, BMCR_RESET);
867 state->router_mode = 0;
868 state->vlan_enabled = 0;
869 ip17xx_reset_vlan_config(state);
871 return state->regs->reset(state);
874 static int ip17xx_get_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
876 struct ip17xx_state *state = dev->priv;
878 if (state->add_tag & (1<<val->port_vlan)) {
879 if (state->remove_tag & (1<<val->port_vlan))
880 val->value.i = 3; // shouldn't ever happen.
884 if (state->remove_tag & (1<<val->port_vlan))
892 static int ip17xx_set_tagged(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
894 struct ip17xx_state *state = dev->priv;
896 state->add_tag &= ~(1<<val->port_vlan);
897 state->remove_tag &= ~(1<<val->port_vlan);
899 if (val->value.i == 0)
900 state->remove_tag |= (1<<val->port_vlan);
901 if (val->value.i == 1)
902 state->add_tag |= (1<<val->port_vlan);
904 return state->regs->update_state(state);
907 /** Get the current phy address */
908 static int ip17xx_get_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
910 struct ip17xx_state *state = dev->priv;
912 val->value.i = state->proc_mii.p;
916 /** Set a new phy address for low level access to registers */
917 static int ip17xx_set_phy(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
919 struct ip17xx_state *state = dev->priv;
920 int new_reg = val->value.i;
922 if (new_reg < 0 || new_reg > 31)
923 state->proc_mii.p = (u16)-1;
925 state->proc_mii.p = (u16)new_reg;
929 /** Get the current register number */
930 static int ip17xx_get_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
932 struct ip17xx_state *state = dev->priv;
934 val->value.i = state->proc_mii.m;
938 /** Set a new register address for low level access to registers */
939 static int ip17xx_set_reg(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
941 struct ip17xx_state *state = dev->priv;
942 int new_reg = val->value.i;
944 if (new_reg < 0 || new_reg > 31)
945 state->proc_mii.m = (u16)-1;
947 state->proc_mii.m = (u16)new_reg;
951 /** Get the register content of state->proc_mii */
952 static int ip17xx_get_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
954 struct ip17xx_state *state = dev->priv;
955 int retval = -EINVAL;
956 if (REG_SUPP(state->proc_mii))
957 retval = getPhy(state, state->proc_mii);
962 val->value.i = retval;
967 /** Write a value to the register defined by phy/reg above */
968 static int ip17xx_set_val(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
970 struct ip17xx_state *state = dev->priv;
971 int myval, err = -EINVAL;
973 myval = val->value.i;
974 if (myval <= 0xffff && myval >= 0 && REG_SUPP(state->proc_mii)) {
975 err = setPhy(state, state->proc_mii, (u16)myval);
980 static int ip17xx_read_name(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
982 struct ip17xx_state *state = dev->priv;
983 val->value.s = state->regs->NAME; // Just a const pointer, won't be freed by swconfig.
987 static int ip17xx_get_tag(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
989 struct ip17xx_state *state = dev->priv;
990 int vlan = val->port_vlan;
992 if (vlan < 0 || vlan >= MAX_VLANS)
995 val->value.i = state->vlans[vlan].tag;
999 static int ip17xx_set_tag(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1001 struct ip17xx_state *state = dev->priv;
1002 int vlan = val->port_vlan;
1003 int tag = val->value.i;
1005 if (vlan < 0 || vlan >= MAX_VLANS)
1008 if (tag < 0 || tag > 4095)
1011 state->vlans[vlan].tag = tag;
1012 return state->regs->update_state(state);
1015 static int ip17xx_set_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1017 struct ip17xx_state *state = dev->priv;
1018 int nr = val->port_vlan;
1022 if (val->value.i == 100) {
1025 } else if (val->value.i == 10) {
1033 /* Can't set speed for cpu port */
1034 if (nr == state->regs->CPU_PORT)
1037 if (nr >= dev->ports || nr < 0)
1040 ctrl = ip_phy_read(state, nr, 0);
1046 ctrl |= (autoneg<<12);
1047 ctrl |= (speed<<13);
1049 return ip_phy_write(state, nr, 0, ctrl);
1052 static int ip17xx_get_port_speed(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1054 struct ip17xx_state *state = dev->priv;
1055 int nr = val->port_vlan;
1058 if (nr == state->regs->CPU_PORT) {
1063 if (nr >= dev->ports || nr < 0)
1066 status = ip_phy_read(state, nr, 1);
1067 speed = ip_phy_read(state, nr, 18);
1068 if (status < 0 || speed < 0)
1072 val->value.i = ((speed & (1<<11)) ? 100 : 10);
1079 static int ip17xx_get_port_status(struct switch_dev *dev, const struct switch_attr *attr, struct switch_val *val)
1081 struct ip17xx_state *state = dev->priv;
1082 int ctrl, speed, status;
1083 int nr = val->port_vlan;
1085 char *buf = state->buf; // fixed-length at 80.
1087 if (nr == state->regs->CPU_PORT) {
1088 sprintf(buf, "up, 100 Mbps, cpu port");
1093 if (nr >= dev->ports || nr < 0)
1096 ctrl = ip_phy_read(state, nr, 0);
1097 status = ip_phy_read(state, nr, 1);
1098 speed = ip_phy_read(state, nr, 18);
1099 if (ctrl < 0 || status < 0 || speed < 0)
1103 len = sprintf(buf, "up, %d Mbps, %s duplex",
1104 ((speed & (1<<11)) ? 100 : 10),
1105 ((speed & (1<<10)) ? "full" : "half"));
1107 len = sprintf(buf, "down");
1109 if (ctrl & (1<<12)) {
1110 len += sprintf(buf+len, ", auto-negotiate");
1111 if (!(status & (1<<5)))
1112 len += sprintf(buf+len, " (in progress)");
1114 len += sprintf(buf+len, ", fixed speed (%d)",
1115 ((ctrl & (1<<13)) ? 100 : 10));
1123 static int ip17xx_get_pvid(struct switch_dev *dev, int port, int *val)
1125 struct ip17xx_state *state = dev->priv;
1127 *val = state->ports[port].pvid;
1131 static int ip17xx_set_pvid(struct switch_dev *dev, int port, int val)
1133 struct ip17xx_state *state = dev->priv;
1135 if (val < 0 || val >= MAX_VLANS)
1138 state->ports[port].pvid = val;
1139 return state->regs->update_state(state);
1153 IP17XX_REGISTER_PHY,
1154 IP17XX_REGISTER_MII,
1155 IP17XX_REGISTER_VALUE,
1156 IP17XX_REGISTER_ERRNO,
1163 static const struct switch_attr ip17xx_global[] = {
1164 [IP17XX_ENABLE_VLAN] = {
1165 .id = IP17XX_ENABLE_VLAN,
1166 .type = SWITCH_TYPE_INT,
1167 .name = "enable_vlan",
1168 .description = "Flag to enable or disable VLANs and tagging",
1169 .get = ip17xx_get_enable_vlan,
1170 .set = ip17xx_set_enable_vlan,
1172 [IP17XX_GET_NAME] = {
1173 .id = IP17XX_GET_NAME,
1174 .type = SWITCH_TYPE_STRING,
1175 .description = "Returns the type of IC+ chip.",
1177 .get = ip17xx_read_name,
1180 /* jal: added for low level debugging etc. */
1181 [IP17XX_REGISTER_PHY] = {
1182 .id = IP17XX_REGISTER_PHY,
1183 .type = SWITCH_TYPE_INT,
1184 .description = "Direct register access: set PHY (0-4, or 29,30,31)",
1186 .get = ip17xx_get_phy,
1187 .set = ip17xx_set_phy,
1189 [IP17XX_REGISTER_MII] = {
1190 .id = IP17XX_REGISTER_MII,
1191 .type = SWITCH_TYPE_INT,
1192 .description = "Direct register access: set MII register number (0-31)",
1194 .get = ip17xx_get_reg,
1195 .set = ip17xx_set_reg,
1197 [IP17XX_REGISTER_VALUE] = {
1198 .id = IP17XX_REGISTER_VALUE,
1199 .type = SWITCH_TYPE_INT,
1200 .description = "Direct register access: read/write to register (0-65535)",
1202 .get = ip17xx_get_val,
1203 .set = ip17xx_set_val,
1207 static const struct switch_attr ip17xx_vlan[] = {
1208 [IP17XX_VLAN_TAG] = {
1209 .id = IP17XX_VLAN_TAG,
1210 .type = SWITCH_TYPE_INT,
1211 .description = "VLAN tag (0-4095) [IP175D only]",
1213 .get = ip17xx_get_tag,
1214 .set = ip17xx_set_tag,
1218 static const struct switch_attr ip17xx_port[] = {
1219 [IP17XX_PORT_STATUS] = {
1220 .id = IP17XX_PORT_STATUS,
1221 .type = SWITCH_TYPE_STRING,
1222 .description = "Returns Detailed port status",
1224 .get = ip17xx_get_port_status,
1227 [IP17XX_PORT_LINK] = {
1228 .id = IP17XX_PORT_LINK,
1229 .type = SWITCH_TYPE_INT,
1230 .description = "Link speed. Can write 0 for auto-negotiate, or 10 or 100",
1232 .get = ip17xx_get_port_speed,
1233 .set = ip17xx_set_port_speed,
1235 [IP17XX_PORT_TAGGED] = {
1236 .id = IP17XX_PORT_LINK,
1237 .type = SWITCH_TYPE_INT,
1238 .description = "0 = untag, 1 = add tags, 2 = do not alter (This value is reset if vlans are altered)",
1240 .get = ip17xx_get_tagged,
1241 .set = ip17xx_set_tagged,
1245 static int ip17xx_probe(struct phy_device *pdev)
1247 struct ip17xx_state *state;
1248 struct switch_dev *dev;
1251 /* We only attach to PHY 0, but use all available PHYs */
1252 if (pdev->addr != 0)
1255 state = kzalloc(sizeof(*state), GFP_KERNEL);
1260 dev->attr_global.attr = ip17xx_global;
1261 dev->attr_global.n_attr = ARRAY_SIZE(ip17xx_global);
1262 dev->attr_port.attr = ip17xx_port;
1263 dev->attr_port.n_attr = ARRAY_SIZE(ip17xx_port);
1264 dev->attr_vlan.attr = ip17xx_vlan;
1265 dev->attr_vlan.n_attr = ARRAY_SIZE(ip17xx_vlan);
1267 dev->get_port_pvid = ip17xx_get_pvid;
1268 dev->set_port_pvid = ip17xx_set_pvid;
1269 dev->get_vlan_ports = ip17xx_get_ports;
1270 dev->set_vlan_ports = ip17xx_set_ports;
1271 dev->apply_config = ip17xx_apply;
1272 dev->reset_switch = ip17xx_reset;
1276 state->mii_bus = pdev->bus;
1278 err = get_model(state);
1282 dev->vlans = MAX_VLANS;
1283 dev->cpu_port = state->regs->CPU_PORT;
1284 dev->ports = state->regs->NUM_PORTS;
1285 dev->name = state->regs->NAME;
1287 pr_info("IP17xx: Found %s at %s\n", dev->name, dev_name(&pdev->dev));
1295 static int ip17xx_config_init(struct phy_device *pdev)
1297 struct ip17xx_state *state = pdev->priv;
1298 struct net_device *dev = pdev->attached_dev;
1301 err = register_switch(&state->dev, dev);
1305 state->registered = true;
1306 ip17xx_reset(&state->dev);
1310 static void ip17xx_remove(struct phy_device *pdev)
1312 struct ip17xx_state *state = pdev->priv;
1314 if (state->registered)
1315 unregister_switch(&state->dev);
1319 static int ip17xx_config_aneg(struct phy_device *pdev)
1324 static int ip17xx_aneg_done(struct phy_device *pdev)
1326 return BMSR_ANEGCOMPLETE;
1329 static int ip17xx_update_link(struct phy_device *pdev)
1335 static int ip17xx_read_status(struct phy_device *pdev)
1337 pdev->speed = SPEED_100;
1338 pdev->duplex = DUPLEX_FULL;
1339 pdev->pause = pdev->asym_pause = 0;
1345 static 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 .aneg_done = ip17xx_aneg_done,
1355 .update_link = ip17xx_update_link,
1356 .read_status = ip17xx_read_status,
1357 .driver = { .owner = THIS_MODULE },
1360 static struct phy_driver ip175a_driver = {
1361 .name = "IC+ IP175A",
1362 .phy_id = 0x02430c50,
1363 .phy_id_mask = 0x0ffffff0,
1364 .features = PHY_BASIC_FEATURES,
1365 .probe = ip17xx_probe,
1366 .remove = ip17xx_remove,
1367 .config_init = ip17xx_config_init,
1368 .config_aneg = ip17xx_config_aneg,
1369 .aneg_done = ip17xx_aneg_done,
1370 .update_link = ip17xx_update_link,
1371 .read_status = ip17xx_read_status,
1372 .driver = { .owner = THIS_MODULE },
1376 int __init ip17xx_init(void)
1380 ret = phy_driver_register(&ip175a_driver);
1384 return phy_driver_register(&ip17xx_driver);
1387 void __exit ip17xx_exit(void)
1389 phy_driver_unregister(&ip17xx_driver);
1390 phy_driver_unregister(&ip175a_driver);
1393 MODULE_AUTHOR("Patrick Horn <patrick.horn@gmail.com>");
1394 MODULE_AUTHOR("Felix Fietkau <nbd@openwrt.org>");
1395 MODULE_AUTHOR("Martin Mares <mj@ucw.cz>");
1396 MODULE_LICENSE("GPL");
1398 module_init(ip17xx_init);
1399 module_exit(ip17xx_exit);