add basic support for the Magicbox boards
[openwrt.git] / target / linux / brcm-2.4 / patches / 008-b44_bcm47xx_support.patch
1 diff -urN linux.old/drivers/net/b44.c linux.dev/drivers/net/b44.c
2 --- linux.old/drivers/net/b44.c 2006-02-12 13:49:59.000000000 +0100
3 +++ linux.dev/drivers/net/b44.c 2006-03-06 22:37:14.000000000 +0100
4 @@ -1,7 +1,9 @@
5 /* b44.c: Broadcom 4400 device driver.
6 *
7 * Copyright (C) 2002 David S. Miller (davem@redhat.com)
8 - * Fixed by Pekka Pietikainen (pp@ee.oulu.fi)
9 + * Copyright (C) 2004 Pekka Pietikainen (pp@ee.oulu.fi)
10 + * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
11 + * Copyright (C) 2006 Felix Fietkau (nbd@openwrt.org)
12 *
13 * Distribute under GPL.
14 */
15 @@ -25,6 +27,41 @@
16
17 #include "b44.h"
18
19 +#include <typedefs.h>
20 +#include <bcmdevs.h>
21 +#include <bcmutils.h>
22 +#include <osl.h>
23 +#include <bcmutils.h>
24 +#include <bcmnvram.h>
25 +#include <sbconfig.h>
26 +#include <sbchipc.h>
27 +#include <sflash.h>
28 +
29 +#ifdef CONFIG_BCM947XX
30 +#define atoi(str) simple_strtoul(((str != NULL) ? str : ""), NULL, 0)
31 +
32 +static inline void e_aton(char *str, char *dest)
33 +{
34 + int i = 0;
35 + u16 *d = (u16 *) dest;
36 +
37 + if (str == NULL) {
38 + memset(dest, 0, 6);
39 + return;
40 + }
41 +
42 + for (;;) {
43 + dest[i++] = (char) simple_strtoul(str, NULL, 16);
44 + str += 2;
45 + if (!*str++ || i == 6)
46 + break;
47 + }
48 +}
49 +
50 +static int instance = 0;
51 +#endif
52 +
53 +
54 #define DRV_MODULE_NAME "b44"
55 #define PFX DRV_MODULE_NAME ": "
56 #define DRV_MODULE_VERSION "0.93"
57 @@ -75,7 +112,7 @@
58 DRV_MODULE_NAME ".c:v" DRV_MODULE_VERSION " (" DRV_MODULE_RELDATE ")\n";
59
60 MODULE_AUTHOR("David S. Miller (davem@redhat.com)");
61 -MODULE_DESCRIPTION("Broadcom 4400 10/100 PCI ethernet driver");
62 +MODULE_DESCRIPTION("Broadcom 4400/47xx 10/100 PCI ethernet driver");
63 MODULE_LICENSE("GPL");
64 MODULE_PARM(b44_debug, "i");
65 MODULE_PARM_DESC(b44_debug, "B44 bitmapped debugging message enable value");
66 @@ -89,6 +126,8 @@
67 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
68 { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4401B1,
69 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
70 + { PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_BCM4713,
71 + PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
72 { } /* terminate list with empty entry */
73 };
74
75 @@ -113,11 +152,13 @@
76 udelay(10);
77 }
78 if (i == timeout) {
79 +#ifdef DEBUG
80 printk(KERN_ERR PFX "%s: BUG! Timeout waiting for bit %08x of register "
81 "%lx to %s.\n",
82 bp->dev->name,
83 bit, reg,
84 (clear ? "clear" : "set"));
85 +#endif
86 return -ENODEV;
87 }
88 return 0;
89 @@ -236,6 +277,8 @@
90 udelay(1);
91 }
92
93 +static int b44_4713_instance;
94 +
95 static int ssb_core_unit(struct b44 *bp)
96 {
97 #if 0
98 @@ -258,6 +301,9 @@
99 break;
100 };
101 #endif
102 + if (bp->pdev->device == PCI_DEVICE_ID_BCM4713)
103 + return b44_4713_instance++;
104 + else
105 return 0;
106 }
107
108 @@ -267,6 +313,28 @@
109 == SBTMSLOW_CLOCK);
110 }
111
112 +static inline void __b44_cam_read(struct b44 *bp, unsigned char *data, int index)
113 +{
114 + u32 val;
115 +
116 + bw32(B44_CAM_CTRL, (CAM_CTRL_READ |
117 + (index << CAM_CTRL_INDEX_SHIFT)));
118 +
119 + b44_wait_bit(bp, B44_CAM_CTRL, CAM_CTRL_BUSY, 100, 1);
120 +
121 + val = br32(B44_CAM_DATA_LO);
122 +
123 + data[2] = (val >> 24) & 0xFF;
124 + data[3] = (val >> 16) & 0xFF;
125 + data[4] = (val >> 8) & 0xFF;
126 + data[5] = (val >> 0) & 0xFF;
127 +
128 + val = br32(B44_CAM_DATA_HI);
129 +
130 + data[0] = (val >> 8) & 0xFF;
131 + data[1] = (val >> 0) & 0xFF;
132 +}
133 +
134 static void __b44_cam_write(struct b44 *bp, unsigned char *data, int index)
135 {
136 u32 val;
137 @@ -287,7 +355,7 @@
138
139 static inline void __b44_disable_ints(struct b44 *bp)
140 {
141 - bw32(B44_IMASK, 0);
142 + bw32(B44_IMASK, ISTAT_TO); /* leave the timeout interrupt active */
143 }
144
145 static void b44_disable_ints(struct b44 *bp)
146 @@ -303,14 +371,14 @@
147 bw32(B44_IMASK, bp->imask);
148 }
149
150 -static int b44_readphy(struct b44 *bp, int reg, u32 *val)
151 +static int __b44_readphy(struct b44 *bp, int phy_addr, int reg, u32 *val)
152 {
153 int err;
154
155 bw32(B44_EMAC_ISTAT, EMAC_INT_MII);
156 bw32(B44_MDIO_DATA, (MDIO_DATA_SB_START |
157 (MDIO_OP_READ << MDIO_DATA_OP_SHIFT) |
158 - (bp->phy_addr << MDIO_DATA_PMD_SHIFT) |
159 + (phy_addr << MDIO_DATA_PMD_SHIFT) |
160 (reg << MDIO_DATA_RA_SHIFT) |
161 (MDIO_TA_VALID << MDIO_DATA_TA_SHIFT)));
162 err = b44_wait_bit(bp, B44_EMAC_ISTAT, EMAC_INT_MII, 100, 0);
163 @@ -319,23 +387,42 @@
164 return err;
165 }
166
167 -static int b44_writephy(struct b44 *bp, int reg, u32 val)
168 +static int b44_readphy(struct b44 *bp, int reg, u32 *val)
169 +{
170 + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
171 + return 0;
172 +
173 + return __b44_readphy(bp, bp->phy_addr, reg, val);
174 +}
175 +
176 +static int __b44_writephy(struct b44 *bp, int phy_addr, int reg, u32 val)
177 {
178 bw32(B44_EMAC_ISTAT, EMAC_INT_MII);
179 bw32(B44_MDIO_DATA, (MDIO_DATA_SB_START |
180 (MDIO_OP_WRITE << MDIO_DATA_OP_SHIFT) |
181 - (bp->phy_addr << MDIO_DATA_PMD_SHIFT) |
182 + (phy_addr << MDIO_DATA_PMD_SHIFT) |
183 (reg << MDIO_DATA_RA_SHIFT) |
184 (MDIO_TA_VALID << MDIO_DATA_TA_SHIFT) |
185 (val & MDIO_DATA_DATA)));
186 return b44_wait_bit(bp, B44_EMAC_ISTAT, EMAC_INT_MII, 100, 0);
187 }
188
189 +static int b44_writephy(struct b44 *bp, int reg, u32 val)
190 +{
191 + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
192 + return 0;
193 +
194 + return __b44_writephy(bp, bp->phy_addr, reg, val);
195 +}
196 +
197 static int b44_phy_reset(struct b44 *bp)
198 {
199 u32 val;
200 int err;
201
202 + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
203 + return 0;
204 +
205 err = b44_writephy(bp, MII_BMCR, BMCR_RESET);
206 if (err)
207 return err;
208 @@ -406,6 +493,23 @@
209 u32 val;
210 int err;
211
212 +
213 + /*
214 + * workaround for bad hardware design in Linksys WAP54G v1.0
215 + * see https://dev.openwrt.org/ticket/146
216 + * check and reset bit "isolate"
217 + */
218 + if ((bp->pdev->device == PCI_DEVICE_ID_BCM4713) &&
219 + (atoi(nvram_get("boardnum")) == 2) &&
220 + (__b44_readphy(bp, 0, MII_BMCR, &val) == 0) &&
221 + (val & BMCR_ISOLATE) &&
222 + (__b44_writephy(bp, 0, MII_BMCR, val & ~BMCR_ISOLATE) != 0)) {
223 + printk(KERN_WARNING PFX "PHY: cannot reset MII transceiver isolate bit.\n");
224 + }
225 +
226 + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY)
227 + return 0;
228 +
229 if ((err = b44_readphy(bp, B44_MII_ALEDCTRL, &val)) != 0)
230 goto out;
231 if ((err = b44_writephy(bp, B44_MII_ALEDCTRL,
232 @@ -498,6 +602,19 @@
233 {
234 u32 bmsr, aux;
235
236 + if (bp->phy_addr == B44_PHY_ADDR_NO_PHY) {
237 + bp->flags |= B44_FLAG_100_BASE_T;
238 + bp->flags |= B44_FLAG_FULL_DUPLEX;
239 + if (!netif_carrier_ok(bp->dev)) {
240 + u32 val = br32(B44_TX_CTRL);
241 + val |= TX_CTRL_DUPLEX;
242 + bw32(B44_TX_CTRL, val);
243 + netif_carrier_on(bp->dev);
244 + b44_link_report(bp);
245 + }
246 + return;
247 + }
248 +
249 if (!b44_readphy(bp, MII_BMSR, &bmsr) &&
250 !b44_readphy(bp, B44_MII_AUXCTRL, &aux) &&
251 (bmsr != 0xffff)) {
252 @@ -765,6 +882,25 @@
253 return received;
254 }
255
256 +
257 +static inline void __b44_reset(struct b44 *bp)
258 +{
259 + spin_lock_irq(&bp->lock);
260 + b44_halt(bp);
261 + b44_init_rings(bp);
262 + b44_init_hw(bp);
263 + spin_unlock_irq(&bp->lock);
264 +
265 + b44_enable_ints(bp);
266 + netif_wake_queue(bp->dev);
267 +}
268 +
269 +static inline void __b44_set_timeout(struct b44 *bp, int timeout)
270 +{
271 + /* Set timeout for Rx to two seconds after the last Tx */
272 + bw32(B44_GPTIMER, timeout ? 2 * 125000000 : 0);
273 +}
274 +
275 static int b44_poll(struct net_device *netdev, int *budget)
276 {
277 struct b44 *bp = netdev->priv;
278 @@ -772,13 +908,13 @@
279
280 spin_lock_irq(&bp->lock);
281
282 - if (bp->istat & (ISTAT_TX | ISTAT_TO)) {
283 + if (bp->istat & ISTAT_TX) {
284 /* spin_lock(&bp->tx_lock); */
285 b44_tx(bp);
286 /* spin_unlock(&bp->tx_lock); */
287 }
288 spin_unlock_irq(&bp->lock);
289 -
290 +
291 done = 1;
292 if (bp->istat & ISTAT_RX) {
293 int orig_budget = *budget;
294 @@ -796,24 +932,18 @@
295 done = 0;
296 }
297
298 - if (bp->istat & ISTAT_ERRORS) {
299 - spin_lock_irq(&bp->lock);
300 - b44_halt(bp);
301 - b44_init_rings(bp);
302 - b44_init_hw(bp);
303 - netif_wake_queue(bp->dev);
304 - spin_unlock_irq(&bp->lock);
305 - done = 1;
306 - }
307 -
308 if (done) {
309 netif_rx_complete(netdev);
310 b44_enable_ints(bp);
311 }
312
313 + if ((bp->core_unit == 1) && (bp->istat & (ISTAT_TX | ISTAT_RX)))
314 + __b44_set_timeout(bp, (bp->istat & ISTAT_TX) ? 1 : 0);
315 +
316 return (done ? 0 : 1);
317 }
318
319 +
320 static irqreturn_t b44_interrupt(int irq, void *dev_id, struct pt_regs *regs)
321 {
322 struct net_device *dev = dev_id;
323 @@ -832,6 +962,18 @@
324 */
325 istat &= imask;
326 if (istat) {
327 + /* Workaround for the WL-500g WAN port hang */
328 + if (istat & (ISTAT_TO | ISTAT_ERRORS)) {
329 + /*
330 + * no rx before the watchdog timeout
331 + * reset the interface
332 + */
333 + __b44_reset(bp);
334 + }
335 +
336 + if ((bp->core_unit == 1) && (bp->istat & (ISTAT_TX | ISTAT_RX)))
337 + __b44_set_timeout(bp, (bp->istat & ISTAT_TX) ? 1 : 0);
338 +
339 handled = 1;
340 if (netif_rx_schedule_prep(dev)) {
341 /* NOTE: These writes are posted by the readback of
342 @@ -848,6 +990,7 @@
343 bw32(B44_ISTAT, istat);
344 br32(B44_ISTAT);
345 }
346 +
347 spin_unlock_irqrestore(&bp->lock, flags);
348 return IRQ_RETVAL(handled);
349 }
350 @@ -859,16 +1002,7 @@
351 printk(KERN_ERR PFX "%s: transmit timed out, resetting\n",
352 dev->name);
353
354 - spin_lock_irq(&bp->lock);
355 -
356 - b44_halt(bp);
357 - b44_init_rings(bp);
358 - b44_init_hw(bp);
359 -
360 - spin_unlock_irq(&bp->lock);
361 -
362 - b44_enable_ints(bp);
363 -
364 + __b44_reset(bp);
365 netif_wake_queue(dev);
366 }
367
368 @@ -1092,6 +1226,8 @@
369 /* bp->lock is held. */
370 static void b44_chip_reset(struct b44 *bp)
371 {
372 + unsigned int sb_clock;
373 +
374 if (ssb_is_core_up(bp)) {
375 bw32(B44_RCV_LAZY, 0);
376 bw32(B44_ENET_CTRL, ENET_CTRL_DISABLE);
377 @@ -1105,9 +1241,10 @@
378 bw32(B44_DMARX_CTRL, 0);
379 bp->rx_prod = bp->rx_cons = 0;
380 } else {
381 - ssb_pci_setup(bp, (bp->core_unit == 0 ?
382 - SBINTVEC_ENET0 :
383 - SBINTVEC_ENET1));
384 + /*if (bp->pdev->device != PCI_DEVICE_ID_BCM4713)*/
385 + ssb_pci_setup(bp, (bp->core_unit == 0 ?
386 + SBINTVEC_ENET0 :
387 + SBINTVEC_ENET1));
388 }
389
390 ssb_core_reset(bp);
391 @@ -1115,6 +1252,11 @@
392 b44_clear_stats(bp);
393
394 /* Make PHY accessible. */
395 + if (bp->pdev->device == PCI_DEVICE_ID_BCM4713)
396 + sb_clock = 100000000; /* 100 MHz */
397 + else
398 + sb_clock = 62500000; /* 62.5 MHz */
399 +
400 bw32(B44_MDIO_CTRL, (MDIO_CTRL_PREAMBLE |
401 (0x0d & MDIO_CTRL_MAXF_MASK)));
402 br32(B44_MDIO_CTRL);
403 @@ -1215,6 +1357,8 @@
404 struct b44 *bp = dev->priv;
405 int err;
406
407 + netif_carrier_off(dev);
408 +
409 err = b44_alloc_consistent(bp);
410 if (err)
411 return err;
412 @@ -1235,9 +1379,10 @@
413 bp->timer.expires = jiffies + HZ;
414 bp->timer.data = (unsigned long) bp;
415 bp->timer.function = b44_timer;
416 - add_timer(&bp->timer);
417 + b44_timer((unsigned long) bp);
418
419 b44_enable_ints(bp);
420 + netif_start_queue(dev);
421
422 return 0;
423
424 @@ -1628,7 +1773,7 @@
425 u32 mii_regval;
426
427 spin_lock_irq(&bp->lock);
428 - err = b44_readphy(bp, data->reg_num & 0x1f, &mii_regval);
429 + err = __b44_readphy(bp, data->phy_id & 0x1f, data->reg_num & 0x1f, &mii_regval);
430 spin_unlock_irq(&bp->lock);
431
432 data->val_out = mii_regval;
433 @@ -1641,7 +1786,7 @@
434 return -EPERM;
435
436 spin_lock_irq(&bp->lock);
437 - err = b44_writephy(bp, data->reg_num & 0x1f, data->val_in);
438 + err = __b44_writephy(bp, data->phy_id & 0x1f, data->reg_num & 0x1f, data->val_in);
439 spin_unlock_irq(&bp->lock);
440
441 return err;
442 @@ -1668,21 +1813,52 @@
443 static int __devinit b44_get_invariants(struct b44 *bp)
444 {
445 u8 eeprom[128];
446 + u8 buf[32];
447 int err;
448 + unsigned long flags;
449
450 - err = b44_read_eeprom(bp, &eeprom[0]);
451 - if (err)
452 - goto out;
453 -
454 - bp->dev->dev_addr[0] = eeprom[79];
455 - bp->dev->dev_addr[1] = eeprom[78];
456 - bp->dev->dev_addr[2] = eeprom[81];
457 - bp->dev->dev_addr[3] = eeprom[80];
458 - bp->dev->dev_addr[4] = eeprom[83];
459 - bp->dev->dev_addr[5] = eeprom[82];
460 -
461 - bp->phy_addr = eeprom[90] & 0x1f;
462 - bp->mdc_port = (eeprom[90] >> 14) & 0x1;
463 + if (bp->pdev->device == PCI_DEVICE_ID_BCM4713) {
464 +#ifdef CONFIG_BCM947XX
465 + sprintf(buf, "et%dmacaddr", instance - 1);
466 + e_aton(nvram_get(buf), bp->dev->dev_addr);
467 +
468 + sprintf(buf, "et%dphyaddr", instance - 1);
469 + bp->phy_addr = B44_PHY_ADDR_NO_PHY;
470 +#else
471 + /*
472 + * BCM47xx boards don't have a EEPROM. The MAC is stored in
473 + * a NVRAM area somewhere in the flash memory. As we don't
474 + * know the location and/or the format of the NVRAM area
475 + * here, we simply rely on the bootloader to write the
476 + * MAC into the CAM.
477 + */
478 + spin_lock_irqsave(&bp->lock, flags);
479 + __b44_cam_read(bp, bp->dev->dev_addr, 0);
480 + spin_unlock_irqrestore(&bp->lock, flags);
481 +
482 + /*
483 + * BCM47xx boards don't have a PHY. Usually there is a switch
484 + * chip with multiple PHYs connected to the PHY port.
485 + */
486 + bp->phy_addr = B44_PHY_ADDR_NO_PHY;
487 +#endif
488 + bp->dma_offset = 0;
489 + } else {
490 + err = b44_read_eeprom(bp, &eeprom[0]);
491 + if (err)
492 + return err;
493 +
494 + bp->dev->dev_addr[0] = eeprom[79];
495 + bp->dev->dev_addr[1] = eeprom[78];
496 + bp->dev->dev_addr[2] = eeprom[81];
497 + bp->dev->dev_addr[3] = eeprom[80];
498 + bp->dev->dev_addr[4] = eeprom[83];
499 + bp->dev->dev_addr[5] = eeprom[82];
500 +
501 + bp->phy_addr = eeprom[90] & 0x1f;
502 + bp->dma_offset = SB_PCI_DMA;
503 + bp->mdc_port = (eeprom[90] >> 14) & 0x1;
504 + }
505
506 /* With this, plus the rx_header prepended to the data by the
507 * hardware, we'll land the ethernet header on a 2-byte boundary.
508 @@ -1692,13 +1868,12 @@
509 bp->imask = IMASK_DEF;
510
511 bp->core_unit = ssb_core_unit(bp);
512 - bp->dma_offset = ssb_get_addr(bp, SBID_PCI_DMA, 0);
513
514 /* XXX - really required?
515 bp->flags |= B44_FLAG_BUGGY_TXPTR;
516 */
517 -out:
518 - return err;
519 +
520 + return 0;
521 }
522
523 static int __devinit b44_init_one(struct pci_dev *pdev,
524 @@ -1710,6 +1885,10 @@
525 struct b44 *bp;
526 int err, i;
527
528 +#ifdef CONFIG_BCM947XX
529 + instance++;
530 +#endif
531 +
532 if (b44_version_printed++ == 0)
533 printk(KERN_INFO "%s", version);
534
535 @@ -1819,11 +1998,17 @@
536
537 pci_save_state(bp->pdev, bp->pci_cfg_state);
538
539 - printk(KERN_INFO "%s: Broadcom 4400 10/100BaseT Ethernet ", dev->name);
540 + printk(KERN_INFO "%s: Broadcom %s 10/100BaseT Ethernet ", dev->name,
541 + (pdev->device == PCI_DEVICE_ID_BCM4713) ? "47xx" : "4400");
542 for (i = 0; i < 6; i++)
543 printk("%2.2x%c", dev->dev_addr[i],
544 i == 5 ? '\n' : ':');
545
546 + /* Initialize phy */
547 + spin_lock_irq(&bp->lock);
548 + b44_chip_reset(bp);
549 + spin_unlock_irq(&bp->lock);
550 +
551 return 0;
552
553 err_out_iounmap:
554 diff -urN linux.old/drivers/net/b44.h linux.dev/drivers/net/b44.h
555 --- linux.old/drivers/net/b44.h 2006-02-12 13:49:59.000000000 +0100
556 +++ linux.dev/drivers/net/b44.h 2006-01-24 20:52:08.000000000 +0100
557 @@ -229,8 +229,6 @@
558 #define SBIPSFLAG_IMASK4 0x3f000000 /* Which sbflags --> mips interrupt 4 */
559 #define SBIPSFLAG_ISHIFT4 24
560 #define B44_SBTPSFLAG 0x0F18UL /* SB Target Port OCP Slave Flag */
561 -#define SBTPS_NUM0_MASK 0x0000003f
562 -#define SBTPS_F0EN0 0x00000040
563 #define B44_SBADMATCH3 0x0F60UL /* SB Address Match 3 */
564 #define B44_SBADMATCH2 0x0F68UL /* SB Address Match 2 */
565 #define B44_SBADMATCH1 0x0F70UL /* SB Address Match 1 */
566 @@ -461,6 +459,8 @@
567 };
568
569 #define B44_MCAST_TABLE_SIZE 32
570 +#define B44_PHY_ADDR_NO_PHY 30
571 +#define B44_MDC_RATIO 5000000
572
573 /* SW copy of device statistics, kept up to date by periodic timer
574 * which probes HW values. Must have same relative layout as HW
575 diff -urN linux.old/include/linux/pci_ids.h linux.dev/include/linux/pci_ids.h
576 --- linux.old/include/linux/pci_ids.h 2006-02-12 13:49:59.000000000 +0100
577 +++ linux.dev/include/linux/pci_ids.h 2006-01-24 20:52:08.000000000 +0100
578 @@ -1735,6 +1735,7 @@
579 #define PCI_DEVICE_ID_TIGON3_5901_2 0x170e
580 #define PCI_DEVICE_ID_BCM4401 0x4401
581 #define PCI_DEVICE_ID_BCM4401B0 0x4402
582 +#define PCI_DEVICE_ID_BCM4713 0x4713
583
584 #define PCI_VENDOR_ID_ENE 0x1524
585 #define PCI_DEVICE_ID_ENE_1211 0x1211
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