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Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +01001/*
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>
Matt Carlson8649f132009-11-02 14:30:00 +000019#include <linux/brcmphy.h>
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +010020
Matt Carlson772638b2008-11-03 16:56:51 -080021#define PHY_ID_BCM50610 0x0143bd60
Matt Carlson4f4598f2009-08-25 10:10:30 +000022#define PHY_ID_BCM50610M 0x0143bd70
Matt Carlsond9221e62009-08-25 10:11:26 +000023#define PHY_ID_BCM57780 0x03625d90
24
25#define BRCM_PHY_MODEL(phydev) \
26 ((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
27
Matt Carlson772638b2008-11-03 16:56:51 -080028
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +010029#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
Nate Casecd9af3d2008-05-17 06:40:39 +010036#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 */
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +010042#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
Nate Casecd9af3d2008-05-17 06:40:39 +010060#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
65/*
Matt Carlson772638b2008-11-03 16:56:51 -080066 * 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
80/*
Nate Casecd9af3d2008-05-17 06:40:39 +010081 * 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
98/*
99 * BCM5482: Shadow registers
100 * Shadow values go into bits [14:10] of register 0x1c to select a shadow
101 * register to access.
102 */
103#define BCM5482_SHD_LEDS1 0x0d /* 01101: LED Selector 1 */
104 /* LED3 / ~LINKSPD[2] selector */
105#define BCM5482_SHD_LEDS1_LED3(src) ((src & 0xf) << 4)
106 /* LED1 / ~LINKSPD[1] selector */
107#define BCM5482_SHD_LEDS1_LED1(src) ((src & 0xf) << 0)
Matt Carlson63a14ce2009-11-02 14:30:40 +0000108#define BCM54XX_SHD_RGMII_MODE 0x0b /* 01011: RGMII Mode Selector */
Nate Casecd9af3d2008-05-17 06:40:39 +0100109#define BCM5482_SHD_SSD 0x14 /* 10100: Secondary SerDes control */
110#define BCM5482_SHD_SSD_LEDM 0x0008 /* SSD LED Mode enable */
111#define BCM5482_SHD_SSD_EN 0x0001 /* SSD enable */
112#define BCM5482_SHD_MODE 0x1f /* 11111: Mode Control Register */
113#define BCM5482_SHD_MODE_1000BX 0x0001 /* Enable 1000BASE-X registers */
114
115/*
Matt Carlson772638b2008-11-03 16:56:51 -0800116 * EXPANSION SHADOW ACCESS REGISTERS. (PHY REG 0x15, 0x16, and 0x17)
117 */
118#define MII_BCM54XX_EXP_AADJ1CH0 0x001f
119#define MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN 0x0200
120#define MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF 0x0100
121#define MII_BCM54XX_EXP_AADJ1CH3 0x601f
122#define MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ 0x0002
123#define MII_BCM54XX_EXP_EXP08 0x0F08
124#define MII_BCM54XX_EXP_EXP08_RJCT_2MHZ 0x0001
125#define MII_BCM54XX_EXP_EXP08_EARLY_DAC_WAKE 0x0200
126#define MII_BCM54XX_EXP_EXP75 0x0f75
127#define MII_BCM54XX_EXP_EXP75_VDACCTRL 0x003c
Matt Carlsond9221e62009-08-25 10:11:26 +0000128#define MII_BCM54XX_EXP_EXP75_CM_OSC 0x0001
Matt Carlson772638b2008-11-03 16:56:51 -0800129#define MII_BCM54XX_EXP_EXP96 0x0f96
130#define MII_BCM54XX_EXP_EXP96_MYST 0x0010
131#define MII_BCM54XX_EXP_EXP97 0x0f97
132#define MII_BCM54XX_EXP_EXP97_MYST 0x0c0c
133
134/*
Nate Casecd9af3d2008-05-17 06:40:39 +0100135 * BCM5482: Secondary SerDes registers
136 */
137#define BCM5482_SSD_1000BX_CTL 0x00 /* 1000BASE-X Control */
138#define BCM5482_SSD_1000BX_CTL_PWRDOWN 0x0800 /* Power-down SSD */
139#define BCM5482_SSD_SGMII_SLAVE 0x15 /* SGMII Slave Register */
140#define BCM5482_SSD_SGMII_SLAVE_EN 0x0002 /* Slave mode enable */
141#define BCM5482_SSD_SGMII_SLAVE_AD 0x0001 /* Slave auto-detection */
142
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000143
144/*****************************************************************************/
145/* Fast Ethernet Transceiver definitions. */
146/*****************************************************************************/
147
148#define MII_BRCM_FET_INTREG 0x1a /* Interrupt register */
149#define MII_BRCM_FET_IR_MASK 0x0100 /* Mask all interrupts */
150#define MII_BRCM_FET_IR_LINK_EN 0x0200 /* Link status change enable */
151#define MII_BRCM_FET_IR_SPEED_EN 0x0400 /* Link speed change enable */
152#define MII_BRCM_FET_IR_DUPLEX_EN 0x0800 /* Duplex mode change enable */
153#define MII_BRCM_FET_IR_ENABLE 0x4000 /* Interrupt enable */
154
155#define MII_BRCM_FET_BRCMTEST 0x1f /* Brcm test register */
156#define MII_BRCM_FET_BT_SRE 0x0080 /* Shadow register enable */
157
158
159/*** Shadow register definitions ***/
160
161#define MII_BRCM_FET_SHDW_MISCCTRL 0x10 /* Shadow misc ctrl */
162#define MII_BRCM_FET_SHDW_MC_FAME 0x4000 /* Force Auto MDIX enable */
163
164#define MII_BRCM_FET_SHDW_AUXMODE4 0x1a /* Auxiliary mode 4 */
165#define MII_BRCM_FET_SHDW_AM4_LED_MASK 0x0003
166#define MII_BRCM_FET_SHDW_AM4_LED_MODE1 0x0001
167
168#define MII_BRCM_FET_SHDW_AUXSTAT2 0x1b /* Auxiliary status 2 */
169#define MII_BRCM_FET_SHDW_AS2_APDE 0x0020 /* Auto power down enable */
170
171
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100172MODULE_DESCRIPTION("Broadcom PHY driver");
173MODULE_AUTHOR("Maciej W. Rozycki");
174MODULE_LICENSE("GPL");
175
Nate Casecd9af3d2008-05-17 06:40:39 +0100176/*
177 * Indirect register access functions for the 1000BASE-T/100BASE-TX/10BASE-T
178 * 0x1c shadow registers.
179 */
180static int bcm54xx_shadow_read(struct phy_device *phydev, u16 shadow)
181{
182 phy_write(phydev, MII_BCM54XX_SHD, MII_BCM54XX_SHD_VAL(shadow));
183 return MII_BCM54XX_SHD_DATA(phy_read(phydev, MII_BCM54XX_SHD));
184}
185
186static int bcm54xx_shadow_write(struct phy_device *phydev, u16 shadow, u16 val)
187{
188 return phy_write(phydev, MII_BCM54XX_SHD,
189 MII_BCM54XX_SHD_WRITE |
190 MII_BCM54XX_SHD_VAL(shadow) |
191 MII_BCM54XX_SHD_DATA(val));
192}
193
Matt Carlson042a75b2008-11-03 16:56:29 -0800194/* Indirect register access functions for the Expansion Registers */
Matt Carlsond9221e62009-08-25 10:11:26 +0000195static int bcm54xx_exp_read(struct phy_device *phydev, u16 regnum)
Nate Casecd9af3d2008-05-17 06:40:39 +0100196{
197 int val;
198
Matt Carlson042a75b2008-11-03 16:56:29 -0800199 val = phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
200 if (val < 0)
201 return val;
202
Nate Casecd9af3d2008-05-17 06:40:39 +0100203 val = phy_read(phydev, MII_BCM54XX_EXP_DATA);
Matt Carlson042a75b2008-11-03 16:56:29 -0800204
205 /* Restore default value. It's O.K. if this write fails. */
206 phy_write(phydev, MII_BCM54XX_EXP_SEL, 0);
Nate Casecd9af3d2008-05-17 06:40:39 +0100207
208 return val;
209}
210
Matt Carlson772638b2008-11-03 16:56:51 -0800211static int bcm54xx_exp_write(struct phy_device *phydev, u16 regnum, u16 val)
Nate Casecd9af3d2008-05-17 06:40:39 +0100212{
213 int ret;
214
Matt Carlson042a75b2008-11-03 16:56:29 -0800215 ret = phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
216 if (ret < 0)
217 return ret;
218
Nate Casecd9af3d2008-05-17 06:40:39 +0100219 ret = phy_write(phydev, MII_BCM54XX_EXP_DATA, val);
Matt Carlson042a75b2008-11-03 16:56:29 -0800220
221 /* Restore default value. It's O.K. if this write fails. */
222 phy_write(phydev, MII_BCM54XX_EXP_SEL, 0);
Nate Casecd9af3d2008-05-17 06:40:39 +0100223
224 return ret;
225}
226
Matt Carlson772638b2008-11-03 16:56:51 -0800227static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
228{
229 return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
230}
231
Matt Carlson47b1b532009-11-02 14:28:04 +0000232/* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
Matt Carlson772638b2008-11-03 16:56:51 -0800233static int bcm50610_a0_workaround(struct phy_device *phydev)
234{
235 int err;
236
Matt Carlson47b1b532009-11-02 14:28:04 +0000237 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH0,
238 MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN |
239 MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF);
240 if (err < 0)
241 return err;
242
243 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH3,
244 MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ);
245 if (err < 0)
246 return err;
247
248 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP75,
249 MII_BCM54XX_EXP_EXP75_VDACCTRL);
250 if (err < 0)
251 return err;
252
253 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP96,
254 MII_BCM54XX_EXP_EXP96_MYST);
255 if (err < 0)
256 return err;
257
258 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP97,
259 MII_BCM54XX_EXP_EXP97_MYST);
260
261 return err;
262}
263
264static int bcm54xx_phydsp_config(struct phy_device *phydev)
265{
266 int err, err2;
267
268 /* Enable the SMDSP clock */
Matt Carlson772638b2008-11-03 16:56:51 -0800269 err = bcm54xx_auxctl_write(phydev,
270 MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
271 MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA |
272 MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
273 if (err < 0)
274 return err;
275
Matt Carlson219c6ef2009-11-02 14:28:33 +0000276 if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
277 BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) {
278 /* Clear bit 9 to fix a phy interop issue. */
279 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP08,
280 MII_BCM54XX_EXP_EXP08_RJCT_2MHZ);
281 if (err < 0)
282 goto error;
283
284 if (phydev->drv->phy_id == PHY_ID_BCM50610) {
285 err = bcm50610_a0_workaround(phydev);
286 if (err < 0)
287 goto error;
288 }
289 }
Matt Carlson772638b2008-11-03 16:56:51 -0800290
Matt Carlson47b1b532009-11-02 14:28:04 +0000291 if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) {
292 int val;
Matt Carlson772638b2008-11-03 16:56:51 -0800293
Matt Carlson47b1b532009-11-02 14:28:04 +0000294 val = bcm54xx_exp_read(phydev, MII_BCM54XX_EXP_EXP75);
295 if (val < 0)
296 goto error;
Matt Carlson772638b2008-11-03 16:56:51 -0800297
Matt Carlson47b1b532009-11-02 14:28:04 +0000298 val |= MII_BCM54XX_EXP_EXP75_CM_OSC;
299 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP75, val);
300 }
Matt Carlson772638b2008-11-03 16:56:51 -0800301
302error:
Matt Carlson47b1b532009-11-02 14:28:04 +0000303 /* Disable the SMDSP clock */
304 err2 = bcm54xx_auxctl_write(phydev,
305 MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
306 MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
Matt Carlson772638b2008-11-03 16:56:51 -0800307
Matt Carlson47b1b532009-11-02 14:28:04 +0000308 /* Return the first error reported. */
309 return err ? err : err2;
Matt Carlson772638b2008-11-03 16:56:51 -0800310}
311
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100312static int bcm54xx_config_init(struct phy_device *phydev)
313{
314 int reg, err;
315
316 reg = phy_read(phydev, MII_BCM54XX_ECR);
317 if (reg < 0)
318 return reg;
319
320 /* Mask interrupts globally. */
321 reg |= MII_BCM54XX_ECR_IM;
322 err = phy_write(phydev, MII_BCM54XX_ECR, reg);
323 if (err < 0)
324 return err;
325
326 /* Unmask events we are interested in. */
327 reg = ~(MII_BCM54XX_INT_DUPLEX |
328 MII_BCM54XX_INT_SPEED |
329 MII_BCM54XX_INT_LINK);
330 err = phy_write(phydev, MII_BCM54XX_IMR, reg);
331 if (err < 0)
332 return err;
Matt Carlson772638b2008-11-03 16:56:51 -0800333
Matt Carlson63a14ce2009-11-02 14:30:40 +0000334 if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
335 BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
336 (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))
337 bcm54xx_shadow_write(phydev, BCM54XX_SHD_RGMII_MODE, 0);
338
Matt Carlson47b1b532009-11-02 14:28:04 +0000339 bcm54xx_phydsp_config(phydev);
Matt Carlsond9221e62009-08-25 10:11:26 +0000340
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100341 return 0;
342}
343
Nate Casecd9af3d2008-05-17 06:40:39 +0100344static int bcm5482_config_init(struct phy_device *phydev)
345{
346 int err, reg;
347
348 err = bcm54xx_config_init(phydev);
349
350 if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
351 /*
352 * Enable secondary SerDes and its use as an LED source
353 */
354 reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_SSD);
355 bcm54xx_shadow_write(phydev, BCM5482_SHD_SSD,
356 reg |
357 BCM5482_SHD_SSD_LEDM |
358 BCM5482_SHD_SSD_EN);
359
360 /*
361 * Enable SGMII slave mode and auto-detection
362 */
Matt Carlson042a75b2008-11-03 16:56:29 -0800363 reg = BCM5482_SSD_SGMII_SLAVE | MII_BCM54XX_EXP_SEL_SSD;
364 err = bcm54xx_exp_read(phydev, reg);
365 if (err < 0)
366 return err;
367 err = bcm54xx_exp_write(phydev, reg, err |
368 BCM5482_SSD_SGMII_SLAVE_EN |
369 BCM5482_SSD_SGMII_SLAVE_AD);
370 if (err < 0)
371 return err;
Nate Casecd9af3d2008-05-17 06:40:39 +0100372
373 /*
374 * Disable secondary SerDes powerdown
375 */
Matt Carlson042a75b2008-11-03 16:56:29 -0800376 reg = BCM5482_SSD_1000BX_CTL | MII_BCM54XX_EXP_SEL_SSD;
377 err = bcm54xx_exp_read(phydev, reg);
378 if (err < 0)
379 return err;
380 err = bcm54xx_exp_write(phydev, reg,
381 err & ~BCM5482_SSD_1000BX_CTL_PWRDOWN);
382 if (err < 0)
383 return err;
Nate Casecd9af3d2008-05-17 06:40:39 +0100384
385 /*
386 * Select 1000BASE-X register set (primary SerDes)
387 */
388 reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_MODE);
389 bcm54xx_shadow_write(phydev, BCM5482_SHD_MODE,
390 reg | BCM5482_SHD_MODE_1000BX);
391
392 /*
393 * LED1=ACTIVITYLED, LED3=LINKSPD[2]
394 * (Use LED1 as secondary SerDes ACTIVITY LED)
395 */
396 bcm54xx_shadow_write(phydev, BCM5482_SHD_LEDS1,
397 BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_ACTIVITYLED) |
398 BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_LINKSPD2));
399
400 /*
401 * Auto-negotiation doesn't seem to work quite right
402 * in this mode, so we disable it and force it to the
403 * right speed/duplex setting. Only 'link status'
404 * is important.
405 */
406 phydev->autoneg = AUTONEG_DISABLE;
407 phydev->speed = SPEED_1000;
408 phydev->duplex = DUPLEX_FULL;
409 }
410
411 return err;
412}
413
414static int bcm5482_read_status(struct phy_device *phydev)
415{
416 int err;
417
418 err = genphy_read_status(phydev);
419
420 if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
421 /*
422 * Only link status matters for 1000Base-X mode, so force
423 * 1000 Mbit/s full-duplex status
424 */
425 if (phydev->link) {
426 phydev->speed = SPEED_1000;
427 phydev->duplex = DUPLEX_FULL;
428 }
429 }
430
431 return err;
432}
433
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100434static int bcm54xx_ack_interrupt(struct phy_device *phydev)
435{
436 int reg;
437
438 /* Clear pending interrupts. */
439 reg = phy_read(phydev, MII_BCM54XX_ISR);
440 if (reg < 0)
441 return reg;
442
443 return 0;
444}
445
446static int bcm54xx_config_intr(struct phy_device *phydev)
447{
448 int reg, err;
449
450 reg = phy_read(phydev, MII_BCM54XX_ECR);
451 if (reg < 0)
452 return reg;
453
454 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
455 reg &= ~MII_BCM54XX_ECR_IM;
456 else
457 reg |= MII_BCM54XX_ECR_IM;
458
459 err = phy_write(phydev, MII_BCM54XX_ECR, reg);
460 return err;
461}
462
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300463static int bcm5481_config_aneg(struct phy_device *phydev)
464{
465 int ret;
466
467 /* Aneg firsly. */
468 ret = genphy_config_aneg(phydev);
469
470 /* Then we can set up the delay. */
471 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
472 u16 reg;
473
474 /*
475 * There is no BCM5481 specification available, so down
476 * here is everything we know about "register 0x18". This
477 * at least helps BCM5481 to successfuly receive packets
478 * on MPC8360E-RDK board. Peter Barada <peterb@logicpd.com>
479 * says: "This sets delay between the RXD and RXC signals
480 * instead of using trace lengths to achieve timing".
481 */
482
483 /* Set RDX clk delay. */
484 reg = 0x7 | (0x7 << 12);
485 phy_write(phydev, 0x18, reg);
486
487 reg = phy_read(phydev, 0x18);
488 /* Set RDX-RXC skew. */
489 reg |= (1 << 8);
490 /* Write bits 14:0. */
491 reg |= (1 << 15);
492 phy_write(phydev, 0x18, reg);
493 }
494
495 return ret;
496}
497
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000498static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
499{
500 int val;
501
502 val = phy_read(phydev, reg);
503 if (val < 0)
504 return val;
505
506 return phy_write(phydev, reg, val | set);
507}
508
509static int brcm_fet_config_init(struct phy_device *phydev)
510{
511 int reg, err, err2, brcmtest;
512
513 /* Reset the PHY to bring it to a known state. */
514 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
515 if (err < 0)
516 return err;
517
518 reg = phy_read(phydev, MII_BRCM_FET_INTREG);
519 if (reg < 0)
520 return reg;
521
522 /* Unmask events we are interested in and mask interrupts globally. */
523 reg = MII_BRCM_FET_IR_DUPLEX_EN |
524 MII_BRCM_FET_IR_SPEED_EN |
525 MII_BRCM_FET_IR_LINK_EN |
526 MII_BRCM_FET_IR_ENABLE |
527 MII_BRCM_FET_IR_MASK;
528
529 err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
530 if (err < 0)
531 return err;
532
533 /* Enable shadow register access */
534 brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST);
535 if (brcmtest < 0)
536 return brcmtest;
537
538 reg = brcmtest | MII_BRCM_FET_BT_SRE;
539
540 err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg);
541 if (err < 0)
542 return err;
543
544 /* Set the LED mode */
545 reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4);
546 if (reg < 0) {
547 err = reg;
548 goto done;
549 }
550
551 reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK;
552 reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1;
553
554 err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg);
555 if (err < 0)
556 goto done;
557
558 /* Enable auto MDIX */
559 err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL,
560 MII_BRCM_FET_SHDW_MC_FAME);
561 if (err < 0)
562 goto done;
563
Matt Carlsoncdd4e092009-11-02 14:31:11 +0000564 if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) {
565 /* Enable auto power down */
566 err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2,
567 MII_BRCM_FET_SHDW_AS2_APDE);
568 }
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000569
570done:
571 /* Disable shadow register access */
572 err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest);
573 if (!err)
574 err = err2;
575
576 return err;
577}
578
579static int brcm_fet_ack_interrupt(struct phy_device *phydev)
580{
581 int reg;
582
583 /* Clear pending interrupts. */
584 reg = phy_read(phydev, MII_BRCM_FET_INTREG);
585 if (reg < 0)
586 return reg;
587
588 return 0;
589}
590
591static int brcm_fet_config_intr(struct phy_device *phydev)
592{
593 int reg, err;
594
595 reg = phy_read(phydev, MII_BRCM_FET_INTREG);
596 if (reg < 0)
597 return reg;
598
599 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
600 reg &= ~MII_BRCM_FET_IR_MASK;
601 else
602 reg |= MII_BRCM_FET_IR_MASK;
603
604 err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
605 return err;
606}
607
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100608static struct phy_driver bcm5411_driver = {
609 .phy_id = 0x00206070,
610 .phy_id_mask = 0xfffffff0,
611 .name = "Broadcom BCM5411",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800612 .features = PHY_GBIT_FEATURES |
613 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100614 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
615 .config_init = bcm54xx_config_init,
616 .config_aneg = genphy_config_aneg,
617 .read_status = genphy_read_status,
618 .ack_interrupt = bcm54xx_ack_interrupt,
619 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000620 .driver = { .owner = THIS_MODULE },
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100621};
622
623static struct phy_driver bcm5421_driver = {
624 .phy_id = 0x002060e0,
625 .phy_id_mask = 0xfffffff0,
626 .name = "Broadcom BCM5421",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800627 .features = PHY_GBIT_FEATURES |
628 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100629 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
630 .config_init = bcm54xx_config_init,
631 .config_aneg = genphy_config_aneg,
632 .read_status = genphy_read_status,
633 .ack_interrupt = bcm54xx_ack_interrupt,
634 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000635 .driver = { .owner = THIS_MODULE },
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100636};
637
638static struct phy_driver bcm5461_driver = {
639 .phy_id = 0x002060c0,
640 .phy_id_mask = 0xfffffff0,
641 .name = "Broadcom BCM5461",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800642 .features = PHY_GBIT_FEATURES |
643 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100644 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
645 .config_init = bcm54xx_config_init,
646 .config_aneg = genphy_config_aneg,
647 .read_status = genphy_read_status,
648 .ack_interrupt = bcm54xx_ack_interrupt,
649 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000650 .driver = { .owner = THIS_MODULE },
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100651};
652
Paul Gortmakerb1394f92008-04-14 23:35:41 -0400653static struct phy_driver bcm5464_driver = {
654 .phy_id = 0x002060b0,
655 .phy_id_mask = 0xfffffff0,
656 .name = "Broadcom BCM5464",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800657 .features = PHY_GBIT_FEATURES |
658 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Paul Gortmakerb1394f92008-04-14 23:35:41 -0400659 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
660 .config_init = bcm54xx_config_init,
661 .config_aneg = genphy_config_aneg,
662 .read_status = genphy_read_status,
663 .ack_interrupt = bcm54xx_ack_interrupt,
664 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000665 .driver = { .owner = THIS_MODULE },
Paul Gortmakerb1394f92008-04-14 23:35:41 -0400666};
667
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300668static struct phy_driver bcm5481_driver = {
669 .phy_id = 0x0143bca0,
670 .phy_id_mask = 0xfffffff0,
671 .name = "Broadcom BCM5481",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800672 .features = PHY_GBIT_FEATURES |
673 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300674 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
675 .config_init = bcm54xx_config_init,
676 .config_aneg = bcm5481_config_aneg,
677 .read_status = genphy_read_status,
678 .ack_interrupt = bcm54xx_ack_interrupt,
679 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000680 .driver = { .owner = THIS_MODULE },
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300681};
682
Nate Case03157ac2008-01-29 10:19:00 -0600683static struct phy_driver bcm5482_driver = {
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300684 .phy_id = 0x0143bcb0,
Nate Case03157ac2008-01-29 10:19:00 -0600685 .phy_id_mask = 0xfffffff0,
686 .name = "Broadcom BCM5482",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800687 .features = PHY_GBIT_FEATURES |
688 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Nate Case03157ac2008-01-29 10:19:00 -0600689 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
Nate Casecd9af3d2008-05-17 06:40:39 +0100690 .config_init = bcm5482_config_init,
Nate Case03157ac2008-01-29 10:19:00 -0600691 .config_aneg = genphy_config_aneg,
Nate Casecd9af3d2008-05-17 06:40:39 +0100692 .read_status = bcm5482_read_status,
Nate Case03157ac2008-01-29 10:19:00 -0600693 .ack_interrupt = bcm54xx_ack_interrupt,
694 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000695 .driver = { .owner = THIS_MODULE },
Nate Case03157ac2008-01-29 10:19:00 -0600696};
697
Matt Carlson772638b2008-11-03 16:56:51 -0800698static struct phy_driver bcm50610_driver = {
699 .phy_id = PHY_ID_BCM50610,
700 .phy_id_mask = 0xfffffff0,
701 .name = "Broadcom BCM50610",
702 .features = PHY_GBIT_FEATURES |
703 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
704 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
705 .config_init = bcm54xx_config_init,
706 .config_aneg = genphy_config_aneg,
707 .read_status = genphy_read_status,
708 .ack_interrupt = bcm54xx_ack_interrupt,
709 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000710 .driver = { .owner = THIS_MODULE },
711};
712
713static struct phy_driver bcm50610m_driver = {
714 .phy_id = PHY_ID_BCM50610M,
715 .phy_id_mask = 0xfffffff0,
716 .name = "Broadcom BCM50610M",
717 .features = PHY_GBIT_FEATURES |
718 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
719 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
720 .config_init = bcm54xx_config_init,
721 .config_aneg = genphy_config_aneg,
722 .read_status = genphy_read_status,
723 .ack_interrupt = bcm54xx_ack_interrupt,
724 .config_intr = bcm54xx_config_intr,
725 .driver = { .owner = THIS_MODULE },
Matt Carlson772638b2008-11-03 16:56:51 -0800726};
727
Matt Carlson2fbb69a2008-11-21 17:22:53 -0800728static struct phy_driver bcm57780_driver = {
Matt Carlsond9221e62009-08-25 10:11:26 +0000729 .phy_id = PHY_ID_BCM57780,
Matt Carlson2fbb69a2008-11-21 17:22:53 -0800730 .phy_id_mask = 0xfffffff0,
731 .name = "Broadcom BCM57780",
732 .features = PHY_GBIT_FEATURES |
733 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
734 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
735 .config_init = bcm54xx_config_init,
736 .config_aneg = genphy_config_aneg,
737 .read_status = genphy_read_status,
738 .ack_interrupt = bcm54xx_ack_interrupt,
739 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000740 .driver = { .owner = THIS_MODULE },
Matt Carlson2fbb69a2008-11-21 17:22:53 -0800741};
742
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000743static struct phy_driver bcmac131_driver = {
744 .phy_id = 0x0143bc70,
745 .phy_id_mask = 0xfffffff0,
746 .name = "Broadcom BCMAC131",
747 .features = PHY_BASIC_FEATURES |
748 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
749 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
750 .config_init = brcm_fet_config_init,
751 .config_aneg = genphy_config_aneg,
752 .read_status = genphy_read_status,
753 .ack_interrupt = brcm_fet_ack_interrupt,
754 .config_intr = brcm_fet_config_intr,
755 .driver = { .owner = THIS_MODULE },
756};
757
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100758static int __init broadcom_init(void)
759{
760 int ret;
761
762 ret = phy_driver_register(&bcm5411_driver);
763 if (ret)
764 goto out_5411;
765 ret = phy_driver_register(&bcm5421_driver);
766 if (ret)
767 goto out_5421;
768 ret = phy_driver_register(&bcm5461_driver);
769 if (ret)
770 goto out_5461;
Paul Gortmakerb1394f92008-04-14 23:35:41 -0400771 ret = phy_driver_register(&bcm5464_driver);
772 if (ret)
773 goto out_5464;
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300774 ret = phy_driver_register(&bcm5481_driver);
775 if (ret)
776 goto out_5481;
Nate Case03157ac2008-01-29 10:19:00 -0600777 ret = phy_driver_register(&bcm5482_driver);
778 if (ret)
779 goto out_5482;
Matt Carlson772638b2008-11-03 16:56:51 -0800780 ret = phy_driver_register(&bcm50610_driver);
781 if (ret)
782 goto out_50610;
Matt Carlson4f4598f2009-08-25 10:10:30 +0000783 ret = phy_driver_register(&bcm50610m_driver);
784 if (ret)
785 goto out_50610m;
Matt Carlson2fbb69a2008-11-21 17:22:53 -0800786 ret = phy_driver_register(&bcm57780_driver);
787 if (ret)
788 goto out_57780;
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000789 ret = phy_driver_register(&bcmac131_driver);
790 if (ret)
791 goto out_ac131;
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100792 return ret;
793
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000794out_ac131:
795 phy_driver_unregister(&bcm57780_driver);
Matt Carlson2fbb69a2008-11-21 17:22:53 -0800796out_57780:
Matt Carlson4f4598f2009-08-25 10:10:30 +0000797 phy_driver_unregister(&bcm50610m_driver);
798out_50610m:
Matt Carlson2fbb69a2008-11-21 17:22:53 -0800799 phy_driver_unregister(&bcm50610_driver);
Matt Carlson772638b2008-11-03 16:56:51 -0800800out_50610:
801 phy_driver_unregister(&bcm5482_driver);
Nate Case03157ac2008-01-29 10:19:00 -0600802out_5482:
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300803 phy_driver_unregister(&bcm5481_driver);
804out_5481:
Paul Gortmakerb1394f92008-04-14 23:35:41 -0400805 phy_driver_unregister(&bcm5464_driver);
806out_5464:
Nate Case03157ac2008-01-29 10:19:00 -0600807 phy_driver_unregister(&bcm5461_driver);
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100808out_5461:
809 phy_driver_unregister(&bcm5421_driver);
810out_5421:
811 phy_driver_unregister(&bcm5411_driver);
812out_5411:
813 return ret;
814}
815
816static void __exit broadcom_exit(void)
817{
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000818 phy_driver_unregister(&bcmac131_driver);
Matt Carlson2fbb69a2008-11-21 17:22:53 -0800819 phy_driver_unregister(&bcm57780_driver);
Matt Carlson4f4598f2009-08-25 10:10:30 +0000820 phy_driver_unregister(&bcm50610m_driver);
Matt Carlson772638b2008-11-03 16:56:51 -0800821 phy_driver_unregister(&bcm50610_driver);
Nate Case03157ac2008-01-29 10:19:00 -0600822 phy_driver_unregister(&bcm5482_driver);
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300823 phy_driver_unregister(&bcm5481_driver);
Paul Gortmakerb1394f92008-04-14 23:35:41 -0400824 phy_driver_unregister(&bcm5464_driver);
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100825 phy_driver_unregister(&bcm5461_driver);
826 phy_driver_unregister(&bcm5421_driver);
827 phy_driver_unregister(&bcm5411_driver);
828}
829
830module_init(broadcom_init);
831module_exit(broadcom_exit);