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net: fix "netpoll: Allow netpoll_setup/cleanup recursion"
[deliverable/linux.git] / drivers / net / phy / broadcom.c
CommitLineData
c4b41c9f
MR		 1/*
2 * drivers/net/phy/broadcom.c
3 *
4 * Broadcom BCM5411, BCM5421 and BCM5461 Gigabit Ethernet
5 * transceivers.
6 *
7 * Copyright (c) 2006 Maciej W. Rozycki
8 *
9 * Inspired by code written by Amy Fong.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version
14 * 2 of the License, or (at your option) any later version.
15 */
16
17#include <linux/module.h>
18#include <linux/phy.h>
8649f13d 19#include <linux/brcmphy.h>
c4b41c9f 20
d9221e66
MC		 21
22#define BRCM_PHY_MODEL(phydev) \
23 ((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
24
32e5a8d6
MC		 25#define BRCM_PHY_REV(phydev) \
26 ((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask))
27
772638b6 28
c4b41c9f
MR		 29#define MII_BCM54XX_ECR 0x10 /* BCM54xx extended control register */
30#define MII_BCM54XX_ECR_IM 0x1000 /* Interrupt mask */
31#define MII_BCM54XX_ECR_IF 0x0800 /* Interrupt force */
32
33#define MII_BCM54XX_ESR 0x11 /* BCM54xx extended status register */
34#define MII_BCM54XX_ESR_IS 0x1000 /* Interrupt status */
35
cd9af3da
NC		 36#define MII_BCM54XX_EXP_DATA 0x15 /* Expansion register data */
37#define MII_BCM54XX_EXP_SEL 0x17 /* Expansion register select */
38#define MII_BCM54XX_EXP_SEL_SSD 0x0e00 /* Secondary SerDes select */
39#define MII_BCM54XX_EXP_SEL_ER 0x0f00 /* Expansion register select */
40
41#define MII_BCM54XX_AUX_CTL 0x18 /* Auxiliary control register */
c4b41c9f
MR		 42#define MII_BCM54XX_ISR 0x1a /* BCM54xx interrupt status register */
43#define MII_BCM54XX_IMR 0x1b /* BCM54xx interrupt mask register */
44#define MII_BCM54XX_INT_CRCERR 0x0001 /* CRC error */
45#define MII_BCM54XX_INT_LINK 0x0002 /* Link status changed */
46#define MII_BCM54XX_INT_SPEED 0x0004 /* Link speed change */
47#define MII_BCM54XX_INT_DUPLEX 0x0008 /* Duplex mode changed */
48#define MII_BCM54XX_INT_LRS 0x0010 /* Local receiver status changed */
49#define MII_BCM54XX_INT_RRS 0x0020 /* Remote receiver status changed */
50#define MII_BCM54XX_INT_SSERR 0x0040 /* Scrambler synchronization error */
51#define MII_BCM54XX_INT_UHCD 0x0080 /* Unsupported HCD negotiated */
52#define MII_BCM54XX_INT_NHCD 0x0100 /* No HCD */
53#define MII_BCM54XX_INT_NHCDL 0x0200 /* No HCD link */
54#define MII_BCM54XX_INT_ANPR 0x0400 /* Auto-negotiation page received */
55#define MII_BCM54XX_INT_LC 0x0800 /* All counters below 128 */
56#define MII_BCM54XX_INT_HC 0x1000 /* Counter above 32768 */
57#define MII_BCM54XX_INT_MDIX 0x2000 /* MDIX status change */
58#define MII_BCM54XX_INT_PSERR 0x4000 /* Pair swap error */
59
cd9af3da
NC		 60#define MII_BCM54XX_SHD 0x1c /* 0x1c shadow registers */
61#define MII_BCM54XX_SHD_WRITE 0x8000
62#define MII_BCM54XX_SHD_VAL(x) ((x & 0x1f) << 10)
63#define MII_BCM54XX_SHD_DATA(x) ((x & 0x3ff) << 0)
64
772638b6
MC		 65/*
66 * AUXILIARY CONTROL SHADOW ACCESS REGISTERS. (PHY REG 0x18)
67 */
68#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL 0x0000
69#define MII_BCM54XX_AUXCTL_ACTL_TX_6DB 0x0400
70#define MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA 0x0800
71
72#define MII_BCM54XX_AUXCTL_MISC_WREN 0x8000
73#define MII_BCM54XX_AUXCTL_MISC_FORCE_AMDIX 0x0200
74#define MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC 0x7000
75#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC 0x0007
76
77#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL 0x0000
78
79
cd9af3da
NC		 80/*
81 * Broadcom LED source encodings. These are used in BCM5461, BCM5481,
82 * BCM5482, and possibly some others.
83 */
84#define BCM_LED_SRC_LINKSPD1 0x0
85#define BCM_LED_SRC_LINKSPD2 0x1
86#define BCM_LED_SRC_XMITLED 0x2
87#define BCM_LED_SRC_ACTIVITYLED 0x3
88#define BCM_LED_SRC_FDXLED 0x4
89#define BCM_LED_SRC_SLAVE 0x5
90#define BCM_LED_SRC_INTR 0x6
91#define BCM_LED_SRC_QUALITY 0x7
92#define BCM_LED_SRC_RCVLED 0x8
93#define BCM_LED_SRC_MULTICOLOR1 0xa
94#define BCM_LED_SRC_OPENSHORT 0xb
95#define BCM_LED_SRC_OFF 0xe /* Tied high */
96#define BCM_LED_SRC_ON 0xf /* Tied low */
97
32e5a8d6 98
cd9af3da
NC		 99/*
100 * BCM5482: Shadow registers
101 * Shadow values go into bits [14:10] of register 0x1c to select a shadow
102 * register to access.
103 */
32e5a8d6
MC		 104/* 00101: Spare Control Register 3 */
105#define BCM54XX_SHD_SCR3 0x05
106#define BCM54XX_SHD_SCR3_DEF_CLK125 0x0001
c704dc23 107#define BCM54XX_SHD_SCR3_DLLAPD_DIS 0x0002
52fae083 108#define BCM54XX_SHD_SCR3_TRDDAPD 0x0004
c704dc23
MC		 109
110/* 01010: Auto Power-Down */
111#define BCM54XX_SHD_APD 0x0a
112#define BCM54XX_SHD_APD_EN 0x0020
32e5a8d6 113
cd9af3da
NC		 114#define BCM5482_SHD_LEDS1 0x0d /* 01101: LED Selector 1 */
115 /* LED3 / ~LINKSPD[2] selector */
116#define BCM5482_SHD_LEDS1_LED3(src) ((src & 0xf) << 4)
117 /* LED1 / ~LINKSPD[1] selector */
118#define BCM5482_SHD_LEDS1_LED1(src) ((src & 0xf) << 0)
63a14ce4 119#define BCM54XX_SHD_RGMII_MODE 0x0b /* 01011: RGMII Mode Selector */
cd9af3da
NC		 120#define BCM5482_SHD_SSD 0x14 /* 10100: Secondary SerDes control */
121#define BCM5482_SHD_SSD_LEDM 0x0008 /* SSD LED Mode enable */
122#define BCM5482_SHD_SSD_EN 0x0001 /* SSD enable */
123#define BCM5482_SHD_MODE 0x1f /* 11111: Mode Control Register */
124#define BCM5482_SHD_MODE_1000BX 0x0001 /* Enable 1000BASE-X registers */
125
32e5a8d6 126
772638b6
MC		 127/*
128 * EXPANSION SHADOW ACCESS REGISTERS. (PHY REG 0x15, 0x16, and 0x17)
129 */
130#define MII_BCM54XX_EXP_AADJ1CH0 0x001f
131#define MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN 0x0200
132#define MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF 0x0100
133#define MII_BCM54XX_EXP_AADJ1CH3 0x601f
134#define MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ 0x0002
135#define MII_BCM54XX_EXP_EXP08 0x0F08
136#define MII_BCM54XX_EXP_EXP08_RJCT_2MHZ 0x0001
137#define MII_BCM54XX_EXP_EXP08_EARLY_DAC_WAKE 0x0200
138#define MII_BCM54XX_EXP_EXP75 0x0f75
139#define MII_BCM54XX_EXP_EXP75_VDACCTRL 0x003c
d9221e66 140#define MII_BCM54XX_EXP_EXP75_CM_OSC 0x0001
772638b6
MC		 141#define MII_BCM54XX_EXP_EXP96 0x0f96
142#define MII_BCM54XX_EXP_EXP96_MYST 0x0010
143#define MII_BCM54XX_EXP_EXP97 0x0f97
144#define MII_BCM54XX_EXP_EXP97_MYST 0x0c0c
145
cd9af3da
NC		 146/*
147 * BCM5482: Secondary SerDes registers
148 */
149#define BCM5482_SSD_1000BX_CTL 0x00 /* 1000BASE-X Control */
150#define BCM5482_SSD_1000BX_CTL_PWRDOWN 0x0800 /* Power-down SSD */
151#define BCM5482_SSD_SGMII_SLAVE 0x15 /* SGMII Slave Register */
152#define BCM5482_SSD_SGMII_SLAVE_EN 0x0002 /* Slave mode enable */
153#define BCM5482_SSD_SGMII_SLAVE_AD 0x0001 /* Slave auto-detection */
154
d7a2ed92
MC		 155
156/*****************************************************************************/
157/* Fast Ethernet Transceiver definitions. */
158/*****************************************************************************/
159
160#define MII_BRCM_FET_INTREG 0x1a /* Interrupt register */
161#define MII_BRCM_FET_IR_MASK 0x0100 /* Mask all interrupts */
162#define MII_BRCM_FET_IR_LINK_EN 0x0200 /* Link status change enable */
163#define MII_BRCM_FET_IR_SPEED_EN 0x0400 /* Link speed change enable */
164#define MII_BRCM_FET_IR_DUPLEX_EN 0x0800 /* Duplex mode change enable */
165#define MII_BRCM_FET_IR_ENABLE 0x4000 /* Interrupt enable */
166
167#define MII_BRCM_FET_BRCMTEST 0x1f /* Brcm test register */
168#define MII_BRCM_FET_BT_SRE 0x0080 /* Shadow register enable */
169
170
171/*** Shadow register definitions ***/
172
173#define MII_BRCM_FET_SHDW_MISCCTRL 0x10 /* Shadow misc ctrl */
174#define MII_BRCM_FET_SHDW_MC_FAME 0x4000 /* Force Auto MDIX enable */
175
176#define MII_BRCM_FET_SHDW_AUXMODE4 0x1a /* Auxiliary mode 4 */
177#define MII_BRCM_FET_SHDW_AM4_LED_MASK 0x0003
178#define MII_BRCM_FET_SHDW_AM4_LED_MODE1 0x0001
179
180#define MII_BRCM_FET_SHDW_AUXSTAT2 0x1b /* Auxiliary status 2 */
181#define MII_BRCM_FET_SHDW_AS2_APDE 0x0020 /* Auto power down enable */
182
183
c4b41c9f
MR		 184MODULE_DESCRIPTION("Broadcom PHY driver");
185MODULE_AUTHOR("Maciej W. Rozycki");
186MODULE_LICENSE("GPL");
187
cd9af3da
NC		 188/*
189 * Indirect register access functions for the 1000BASE-T/100BASE-TX/10BASE-T
190 * 0x1c shadow registers.
191 */
192static int bcm54xx_shadow_read(struct phy_device *phydev, u16 shadow)
193{
194 phy_write(phydev, MII_BCM54XX_SHD, MII_BCM54XX_SHD_VAL(shadow));
195 return MII_BCM54XX_SHD_DATA(phy_read(phydev, MII_BCM54XX_SHD));
196}
197
198static int bcm54xx_shadow_write(struct phy_device *phydev, u16 shadow, u16 val)
199{
200 return phy_write(phydev, MII_BCM54XX_SHD,
201 MII_BCM54XX_SHD_WRITE |
202 MII_BCM54XX_SHD_VAL(shadow) |
203 MII_BCM54XX_SHD_DATA(val));
204}
205
042a75b9 206/* Indirect register access functions for the Expansion Registers */
d9221e66 207static int bcm54xx_exp_read(struct phy_device *phydev, u16 regnum)
cd9af3da
NC		 208{
209 int val;
210
042a75b9
MC		 211 val = phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
212 if (val < 0)
213 return val;
214
cd9af3da 215 val = phy_read(phydev, MII_BCM54XX_EXP_DATA);
042a75b9
MC		 216
217 /* Restore default value. It's O.K. if this write fails. */
218 phy_write(phydev, MII_BCM54XX_EXP_SEL, 0);
cd9af3da
NC		 219
220 return val;
221}
222
772638b6 223static int bcm54xx_exp_write(struct phy_device *phydev, u16 regnum, u16 val)
cd9af3da
NC		 224{
225 int ret;
226
042a75b9
MC		 227 ret = phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
228 if (ret < 0)
229 return ret;
230
cd9af3da 231 ret = phy_write(phydev, MII_BCM54XX_EXP_DATA, val);
042a75b9
MC		 232
233 /* Restore default value. It's O.K. if this write fails. */
234 phy_write(phydev, MII_BCM54XX_EXP_SEL, 0);
cd9af3da
NC		 235
236 return ret;
237}
238
772638b6
MC		 239static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
240{
241 return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
242}
243
47b1b53b 244/* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
772638b6
MC		 245static int bcm50610_a0_workaround(struct phy_device *phydev)
246{
247 int err;
248
772638b6
MC		 249 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH0,
250 MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN |
251 MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF);
252 if (err < 0)
47b1b53b 253 return err;
772638b6
MC		 254
255 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH3,
256 MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ);
257 if (err < 0)
47b1b53b 258 return err;
772638b6
MC		 259
260 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP75,
261 MII_BCM54XX_EXP_EXP75_VDACCTRL);
262 if (err < 0)
47b1b53b 263 return err;
772638b6
MC		 264
265 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP96,
266 MII_BCM54XX_EXP_EXP96_MYST);
267 if (err < 0)
47b1b53b 268 return err;
772638b6
MC		 269
270 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP97,
271 MII_BCM54XX_EXP_EXP97_MYST);
272
47b1b53b
MC		 273 return err;
274}
275
276static int bcm54xx_phydsp_config(struct phy_device *phydev)
277{
278 int err, err2;
279
280 /* Enable the SMDSP clock */
281 err = bcm54xx_auxctl_write(phydev,
282 MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
283 MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA |
284 MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
285 if (err < 0)
286 return err;
287
219c6efe
MC		 288 if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
289 BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) {
290 /* Clear bit 9 to fix a phy interop issue. */
291 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP08,
292 MII_BCM54XX_EXP_EXP08_RJCT_2MHZ);
293 if (err < 0)
294 goto error;
295
296 if (phydev->drv->phy_id == PHY_ID_BCM50610) {
297 err = bcm50610_a0_workaround(phydev);
298 if (err < 0)
299 goto error;
300 }
301 }
47b1b53b
MC		 302
303 if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) {
304 int val;
305
306 val = bcm54xx_exp_read(phydev, MII_BCM54XX_EXP_EXP75);
307 if (val < 0)
308 goto error;
309
310 val |= MII_BCM54XX_EXP_EXP75_CM_OSC;
311 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP75, val);
312 }
313
772638b6 314error:
47b1b53b
MC		 315 /* Disable the SMDSP clock */
316 err2 = bcm54xx_auxctl_write(phydev,
317 MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
318 MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
772638b6 319
47b1b53b
MC		 320 /* Return the first error reported. */
321 return err ? err : err2;
772638b6
MC		 322}
323
32e5a8d6
MC		 324static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev)
325{
5ee6f6a1
RK		 326 u32 orig;
327 int val;
c704dc23 328 bool clk125en = true;
32e5a8d6
MC		 329
330 /* Abort if we are using an untested phy. */
7ec4e7d3 331 if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 &&
332 BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 &&
32e5a8d6
MC		 333 BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M)
334 return;
335
336 val = bcm54xx_shadow_read(phydev, BCM54XX_SHD_SCR3);
337 if (val < 0)
338 return;
339
340 orig = val;
341
c704dc23
MC		 342 if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
343 BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
344 BRCM_PHY_REV(phydev) >= 0x3) {
345 /*
346 * Here, bit 0 _disables_ CLK125 when set.
347 * This bit is set by default.
348 */
349 clk125en = false;
350 } else {
351 if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) {
32e5a8d6
MC		 352 /* Here, bit 0 _enables_ CLK125 when set */
353 val &= ~BCM54XX_SHD_SCR3_DEF_CLK125;
c704dc23 354 clk125en = false;
32e5a8d6
MC		 355 }
356 }
357
c704dc23
MC		 358 if (clk125en == false ||
359 (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
360 val &= ~BCM54XX_SHD_SCR3_DLLAPD_DIS;
361 else
362 val |= BCM54XX_SHD_SCR3_DLLAPD_DIS;
363
52fae083
MC		 364 if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY)
365 val |= BCM54XX_SHD_SCR3_TRDDAPD;
366
32e5a8d6
MC		 367 if (orig != val)
368 bcm54xx_shadow_write(phydev, BCM54XX_SHD_SCR3, val);
c704dc23
MC		 369
370 val = bcm54xx_shadow_read(phydev, BCM54XX_SHD_APD);
371 if (val < 0)
372 return;
373
374 orig = val;
375
376 if (clk125en == false ||
377 (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
378 val |= BCM54XX_SHD_APD_EN;
379 else
380 val &= ~BCM54XX_SHD_APD_EN;
381
382 if (orig != val)
383 bcm54xx_shadow_write(phydev, BCM54XX_SHD_APD, val);
32e5a8d6
MC		 384}
385
c4b41c9f
MR		 386static int bcm54xx_config_init(struct phy_device *phydev)
387{
388 int reg, err;
389
390 reg = phy_read(phydev, MII_BCM54XX_ECR);
391 if (reg < 0)
392 return reg;
393
394 /* Mask interrupts globally. */
395 reg |= MII_BCM54XX_ECR_IM;
396 err = phy_write(phydev, MII_BCM54XX_ECR, reg);
397 if (err < 0)
398 return err;
399
400 /* Unmask events we are interested in. */
401 reg = ~(MII_BCM54XX_INT_DUPLEX |
402 MII_BCM54XX_INT_SPEED |
403 MII_BCM54XX_INT_LINK);
404 err = phy_write(phydev, MII_BCM54XX_IMR, reg);
405 if (err < 0)
406 return err;
772638b6 407
63a14ce4
MC		 408 if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
409 BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
410 (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))
411 bcm54xx_shadow_write(phydev, BCM54XX_SHD_RGMII_MODE, 0);
412
c704dc23 413 if ((phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) ||
52fae083 414 (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) ||
c704dc23 415 (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
32e5a8d6
MC		 416 bcm54xx_adjust_rxrefclk(phydev);
417
47b1b53b 418 bcm54xx_phydsp_config(phydev);
d9221e66 419
c4b41c9f
MR		 420 return 0;
421}
422
cd9af3da
NC		 423static int bcm5482_config_init(struct phy_device *phydev)
424{
425 int err, reg;
426
427 err = bcm54xx_config_init(phydev);
428
429 if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
430 /*
431 * Enable secondary SerDes and its use as an LED source
432 */
433 reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_SSD);
434 bcm54xx_shadow_write(phydev, BCM5482_SHD_SSD,
435 reg |
436 BCM5482_SHD_SSD_LEDM |
437 BCM5482_SHD_SSD_EN);
438
439 /*
440 * Enable SGMII slave mode and auto-detection
441 */
042a75b9
MC		 442 reg = BCM5482_SSD_SGMII_SLAVE | MII_BCM54XX_EXP_SEL_SSD;
443 err = bcm54xx_exp_read(phydev, reg);
444 if (err < 0)
445 return err;
446 err = bcm54xx_exp_write(phydev, reg, err |
447 BCM5482_SSD_SGMII_SLAVE_EN |
448 BCM5482_SSD_SGMII_SLAVE_AD);
449 if (err < 0)
450 return err;
cd9af3da
NC		 451
452 /*
453 * Disable secondary SerDes powerdown
454 */
042a75b9
MC		 455 reg = BCM5482_SSD_1000BX_CTL | MII_BCM54XX_EXP_SEL_SSD;
456 err = bcm54xx_exp_read(phydev, reg);
457 if (err < 0)
458 return err;
459 err = bcm54xx_exp_write(phydev, reg,
460 err & ~BCM5482_SSD_1000BX_CTL_PWRDOWN);
461 if (err < 0)
462 return err;
cd9af3da
NC		 463
464 /*
465 * Select 1000BASE-X register set (primary SerDes)
466 */
467 reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_MODE);
468 bcm54xx_shadow_write(phydev, BCM5482_SHD_MODE,
469 reg | BCM5482_SHD_MODE_1000BX);
470
471 /*
472 * LED1=ACTIVITYLED, LED3=LINKSPD[2]
473 * (Use LED1 as secondary SerDes ACTIVITY LED)
474 */
475 bcm54xx_shadow_write(phydev, BCM5482_SHD_LEDS1,
476 BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_ACTIVITYLED) |
477 BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_LINKSPD2));
478
479 /*
480 * Auto-negotiation doesn't seem to work quite right
481 * in this mode, so we disable it and force it to the
482 * right speed/duplex setting. Only 'link status'
483 * is important.
484 */
485 phydev->autoneg = AUTONEG_DISABLE;
486 phydev->speed = SPEED_1000;
487 phydev->duplex = DUPLEX_FULL;
488 }
489
490 return err;
491}
492
493static int bcm5482_read_status(struct phy_device *phydev)
494{
495 int err;
496
497 err = genphy_read_status(phydev);
498
499 if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
500 /*
501 * Only link status matters for 1000Base-X mode, so force
502 * 1000 Mbit/s full-duplex status
503 */
504 if (phydev->link) {
505 phydev->speed = SPEED_1000;
506 phydev->duplex = DUPLEX_FULL;
507 }
508 }
509
510 return err;
511}
512
c4b41c9f
MR		 513static int bcm54xx_ack_interrupt(struct phy_device *phydev)
514{
515 int reg;
516
517 /* Clear pending interrupts. */
518 reg = phy_read(phydev, MII_BCM54XX_ISR);
519 if (reg < 0)
520 return reg;
521
522 return 0;
523}
524
525static int bcm54xx_config_intr(struct phy_device *phydev)
526{
527 int reg, err;
528
529 reg = phy_read(phydev, MII_BCM54XX_ECR);
530 if (reg < 0)
531 return reg;
532
533 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
534 reg &= ~MII_BCM54XX_ECR_IM;
535 else
536 reg |= MII_BCM54XX_ECR_IM;
537
538 err = phy_write(phydev, MII_BCM54XX_ECR, reg);
539 return err;
540}
541
57bb7e22
AV		 542static int bcm5481_config_aneg(struct phy_device *phydev)
543{
544 int ret;
545
546 /* Aneg firsly. */
547 ret = genphy_config_aneg(phydev);
548
549 /* Then we can set up the delay. */
550 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
551 u16 reg;
552
553 /*
554 * There is no BCM5481 specification available, so down
555 * here is everything we know about "register 0x18". This
556 * at least helps BCM5481 to successfuly receive packets
557 * on MPC8360E-RDK board. Peter Barada <peterb@logicpd.com>
558 * says: "This sets delay between the RXD and RXC signals
559 * instead of using trace lengths to achieve timing".
560 */
561
562 /* Set RDX clk delay. */
563 reg = 0x7 | (0x7 << 12);
564 phy_write(phydev, 0x18, reg);
565
566 reg = phy_read(phydev, 0x18);
567 /* Set RDX-RXC skew. */
568 reg |= (1 << 8);
569 /* Write bits 14:0. */
570 reg |= (1 << 15);
571 phy_write(phydev, 0x18, reg);
572 }
573
574 return ret;
575}
576
d7a2ed92
MC		 577static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
578{
579 int val;
580
581 val = phy_read(phydev, reg);
582 if (val < 0)
583 return val;
584
585 return phy_write(phydev, reg, val | set);
586}
587
588static int brcm_fet_config_init(struct phy_device *phydev)
589{
590 int reg, err, err2, brcmtest;
591
592 /* Reset the PHY to bring it to a known state. */
593 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
594 if (err < 0)
595 return err;
596
597 reg = phy_read(phydev, MII_BRCM_FET_INTREG);
598 if (reg < 0)
599 return reg;
600
601 /* Unmask events we are interested in and mask interrupts globally. */
602 reg = MII_BRCM_FET_IR_DUPLEX_EN |
603 MII_BRCM_FET_IR_SPEED_EN |
604 MII_BRCM_FET_IR_LINK_EN |
605 MII_BRCM_FET_IR_ENABLE |
606 MII_BRCM_FET_IR_MASK;
607
608 err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
609 if (err < 0)
610 return err;
611
612 /* Enable shadow register access */
613 brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST);
614 if (brcmtest < 0)
615 return brcmtest;
616
617 reg = brcmtest | MII_BRCM_FET_BT_SRE;
618
619 err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg);
620 if (err < 0)
621 return err;
622
623 /* Set the LED mode */
624 reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4);
625 if (reg < 0) {
626 err = reg;
627 goto done;
628 }
629
630 reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK;
631 reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1;
632
633 err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg);
634 if (err < 0)
635 goto done;
636
637 /* Enable auto MDIX */
638 err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL,
639 MII_BRCM_FET_SHDW_MC_FAME);
640 if (err < 0)
641 goto done;
642
cdd4e09d
MC		 643 if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) {
644 /* Enable auto power down */
645 err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2,
646 MII_BRCM_FET_SHDW_AS2_APDE);
647 }
d7a2ed92
MC		 648
649done:
650 /* Disable shadow register access */
651 err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest);
652 if (!err)
653 err = err2;
654
655 return err;
656}
657
658static int brcm_fet_ack_interrupt(struct phy_device *phydev)
659{
660 int reg;
661
662 /* Clear pending interrupts. */
663 reg = phy_read(phydev, MII_BRCM_FET_INTREG);
664 if (reg < 0)
665 return reg;
666
667 return 0;
668}
669
670static int brcm_fet_config_intr(struct phy_device *phydev)
671{
672 int reg, err;
673
674 reg = phy_read(phydev, MII_BRCM_FET_INTREG);
675 if (reg < 0)
676 return reg;
677
678 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
679 reg &= ~MII_BRCM_FET_IR_MASK;
680 else
681 reg |= MII_BRCM_FET_IR_MASK;
682
683 err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
684 return err;
685}
686
c4b41c9f
MR		 687static struct phy_driver bcm5411_driver = {
688 .phy_id = 0x00206070,
689 .phy_id_mask = 0xfffffff0,
690 .name = "Broadcom BCM5411",
5e0c676c
MC		 691 .features = PHY_GBIT_FEATURES |
692 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
c4b41c9f
MR		 693 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
694 .config_init = bcm54xx_config_init,
695 .config_aneg = genphy_config_aneg,
696 .read_status = genphy_read_status,
697 .ack_interrupt = bcm54xx_ack_interrupt,
698 .config_intr = bcm54xx_config_intr,
4f4598fd 699 .driver = { .owner = THIS_MODULE },
c4b41c9f
MR		 700};
701
702static struct phy_driver bcm5421_driver = {
703 .phy_id = 0x002060e0,
704 .phy_id_mask = 0xfffffff0,
705 .name = "Broadcom BCM5421",
5e0c676c
MC		 706 .features = PHY_GBIT_FEATURES |
707 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
c4b41c9f
MR		 708 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
709 .config_init = bcm54xx_config_init,
710 .config_aneg = genphy_config_aneg,
711 .read_status = genphy_read_status,
712 .ack_interrupt = bcm54xx_ack_interrupt,
713 .config_intr = bcm54xx_config_intr,
4f4598fd 714 .driver = { .owner = THIS_MODULE },
c4b41c9f
MR		 715};
716
717static struct phy_driver bcm5461_driver = {
718 .phy_id = 0x002060c0,
719 .phy_id_mask = 0xfffffff0,
720 .name = "Broadcom BCM5461",
5e0c676c
MC		 721 .features = PHY_GBIT_FEATURES |
722 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
c4b41c9f
MR		 723 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
724 .config_init = bcm54xx_config_init,
725 .config_aneg = genphy_config_aneg,
726 .read_status = genphy_read_status,
727 .ack_interrupt = bcm54xx_ack_interrupt,
728 .config_intr = bcm54xx_config_intr,
4f4598fd 729 .driver = { .owner = THIS_MODULE },
c4b41c9f
MR		 730};
731
b1394f96
PG		 732static struct phy_driver bcm5464_driver = {
733 .phy_id = 0x002060b0,
734 .phy_id_mask = 0xfffffff0,
735 .name = "Broadcom BCM5464",
5e0c676c
MC		 736 .features = PHY_GBIT_FEATURES |
737 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
b1394f96
PG		 738 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
739 .config_init = bcm54xx_config_init,
740 .config_aneg = genphy_config_aneg,
741 .read_status = genphy_read_status,
742 .ack_interrupt = bcm54xx_ack_interrupt,
743 .config_intr = bcm54xx_config_intr,
4f4598fd 744 .driver = { .owner = THIS_MODULE },
b1394f96
PG		 745};
746
57bb7e22
AV		 747static struct phy_driver bcm5481_driver = {
748 .phy_id = 0x0143bca0,
749 .phy_id_mask = 0xfffffff0,
750 .name = "Broadcom BCM5481",
5e0c676c
MC		 751 .features = PHY_GBIT_FEATURES |
752 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
57bb7e22
AV		 753 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
754 .config_init = bcm54xx_config_init,
755 .config_aneg = bcm5481_config_aneg,
756 .read_status = genphy_read_status,
757 .ack_interrupt = bcm54xx_ack_interrupt,
758 .config_intr = bcm54xx_config_intr,
4f4598fd 759 .driver = { .owner = THIS_MODULE },
57bb7e22
AV		 760};
761
03157ac3 762static struct phy_driver bcm5482_driver = {
57bb7e22 763 .phy_id = 0x0143bcb0,
03157ac3
NC		 764 .phy_id_mask = 0xfffffff0,
765 .name = "Broadcom BCM5482",
5e0c676c
MC		 766 .features = PHY_GBIT_FEATURES |
767 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
03157ac3 768 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
cd9af3da 769 .config_init = bcm5482_config_init,
03157ac3 770 .config_aneg = genphy_config_aneg,
cd9af3da 771 .read_status = bcm5482_read_status,
03157ac3
NC		 772 .ack_interrupt = bcm54xx_ack_interrupt,
773 .config_intr = bcm54xx_config_intr,
4f4598fd 774 .driver = { .owner = THIS_MODULE },
03157ac3
NC		 775};
776
772638b6
MC		 777static struct phy_driver bcm50610_driver = {
778 .phy_id = PHY_ID_BCM50610,
779 .phy_id_mask = 0xfffffff0,
780 .name = "Broadcom BCM50610",
781 .features = PHY_GBIT_FEATURES |
782 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
783 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
784 .config_init = bcm54xx_config_init,
785 .config_aneg = genphy_config_aneg,
786 .read_status = genphy_read_status,
787 .ack_interrupt = bcm54xx_ack_interrupt,
788 .config_intr = bcm54xx_config_intr,
4f4598fd
MC		 789 .driver = { .owner = THIS_MODULE },
790};
791
792static struct phy_driver bcm50610m_driver = {
793 .phy_id = PHY_ID_BCM50610M,
794 .phy_id_mask = 0xfffffff0,
795 .name = "Broadcom BCM50610M",
796 .features = PHY_GBIT_FEATURES |
797 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
798 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
799 .config_init = bcm54xx_config_init,
800 .config_aneg = genphy_config_aneg,
801 .read_status = genphy_read_status,
802 .ack_interrupt = bcm54xx_ack_interrupt,
803 .config_intr = bcm54xx_config_intr,
804 .driver = { .owner = THIS_MODULE },
772638b6
MC		 805};
806
2fbb69aa 807static struct phy_driver bcm57780_driver = {
d9221e66 808 .phy_id = PHY_ID_BCM57780,
2fbb69aa
MC		 809 .phy_id_mask = 0xfffffff0,
810 .name = "Broadcom BCM57780",
811 .features = PHY_GBIT_FEATURES |
812 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
813 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
814 .config_init = bcm54xx_config_init,
815 .config_aneg = genphy_config_aneg,
816 .read_status = genphy_read_status,
817 .ack_interrupt = bcm54xx_ack_interrupt,
818 .config_intr = bcm54xx_config_intr,
4f4598fd 819 .driver = { .owner = THIS_MODULE },
2fbb69aa
MC		 820};
821
d7a2ed92 822static struct phy_driver bcmac131_driver = {
6a443a0f 823 .phy_id = PHY_ID_BCMAC131,
d7a2ed92
MC		 824 .phy_id_mask = 0xfffffff0,
825 .name = "Broadcom BCMAC131",
826 .features = PHY_BASIC_FEATURES |
827 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
828 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
829 .config_init = brcm_fet_config_init,
830 .config_aneg = genphy_config_aneg,
831 .read_status = genphy_read_status,
832 .ack_interrupt = brcm_fet_ack_interrupt,
833 .config_intr = brcm_fet_config_intr,
834 .driver = { .owner = THIS_MODULE },
835};
836
c4b41c9f
MR		 837static int __init broadcom_init(void)
838{
839 int ret;
840
841 ret = phy_driver_register(&bcm5411_driver);
842 if (ret)
843 goto out_5411;
844 ret = phy_driver_register(&bcm5421_driver);
845 if (ret)
846 goto out_5421;
847 ret = phy_driver_register(&bcm5461_driver);
848 if (ret)
849 goto out_5461;
b1394f96
PG		 850 ret = phy_driver_register(&bcm5464_driver);
851 if (ret)
852 goto out_5464;
57bb7e22
AV		 853 ret = phy_driver_register(&bcm5481_driver);
854 if (ret)
855 goto out_5481;
03157ac3
NC		 856 ret = phy_driver_register(&bcm5482_driver);
857 if (ret)
858 goto out_5482;
772638b6
MC		 859 ret = phy_driver_register(&bcm50610_driver);
860 if (ret)
861 goto out_50610;
4f4598fd
MC		 862 ret = phy_driver_register(&bcm50610m_driver);
863 if (ret)
864 goto out_50610m;
2fbb69aa
MC		 865 ret = phy_driver_register(&bcm57780_driver);
866 if (ret)
867 goto out_57780;
d7a2ed92
MC		 868 ret = phy_driver_register(&bcmac131_driver);
869 if (ret)
870 goto out_ac131;
c4b41c9f
MR		 871 return ret;
872
d7a2ed92
MC		 873out_ac131:
874 phy_driver_unregister(&bcm57780_driver);
2fbb69aa 875out_57780:
4f4598fd
MC		 876 phy_driver_unregister(&bcm50610m_driver);
877out_50610m:
2fbb69aa 878 phy_driver_unregister(&bcm50610_driver);
772638b6
MC		 879out_50610:
880 phy_driver_unregister(&bcm5482_driver);
03157ac3 881out_5482:
57bb7e22
AV		 882 phy_driver_unregister(&bcm5481_driver);
883out_5481:
b1394f96
PG		 884 phy_driver_unregister(&bcm5464_driver);
885out_5464:
03157ac3 886 phy_driver_unregister(&bcm5461_driver);
c4b41c9f
MR		 887out_5461:
888 phy_driver_unregister(&bcm5421_driver);
889out_5421:
890 phy_driver_unregister(&bcm5411_driver);
891out_5411:
892 return ret;
893}
894
895static void __exit broadcom_exit(void)
896{
d7a2ed92 897 phy_driver_unregister(&bcmac131_driver);
2fbb69aa 898 phy_driver_unregister(&bcm57780_driver);
4f4598fd 899 phy_driver_unregister(&bcm50610m_driver);
772638b6 900 phy_driver_unregister(&bcm50610_driver);
03157ac3 901 phy_driver_unregister(&bcm5482_driver);
57bb7e22 902 phy_driver_unregister(&bcm5481_driver);
b1394f96 903 phy_driver_unregister(&bcm5464_driver);
c4b41c9f
MR		 904 phy_driver_unregister(&bcm5461_driver);
905 phy_driver_unregister(&bcm5421_driver);
906 phy_driver_unregister(&bcm5411_driver);
907}
908
909module_init(broadcom_init);
910module_exit(broadcom_exit);
4e4f10f6
DW		 911
912static struct mdio_device_id broadcom_tbl[] = {
913 { 0x00206070, 0xfffffff0 },
914 { 0x002060e0, 0xfffffff0 },
915 { 0x002060c0, 0xfffffff0 },
916 { 0x002060b0, 0xfffffff0 },
917 { 0x0143bca0, 0xfffffff0 },
918 { 0x0143bcb0, 0xfffffff0 },
919 { PHY_ID_BCM50610, 0xfffffff0 },
920 { PHY_ID_BCM50610M, 0xfffffff0 },
921 { PHY_ID_BCM57780, 0xfffffff0 },
922 { PHY_ID_BCMAC131, 0xfffffff0 },
923 { }
924};
925
926MODULE_DEVICE_TABLE(mdio, broadcom_tbl);
Linux kernel - Deliverables
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