blob: 34088d60da74613cd007916ddd4844ee5420f90a [file] [log] [blame]
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 Carlsond9221e62009-08-25 10:11:26 +000021
22#define BRCM_PHY_MODEL(phydev) \
23 ((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
24
Matt Carlson32e5a8d2009-11-02 14:31:39 +000025#define BRCM_PHY_REV(phydev) \
26 ((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask))
27
Matt Carlson772638b2008-11-03 16:56:51 -080028/*
Nate Casecd9af3d2008-05-17 06:40:39 +010029 * Broadcom LED source encodings. These are used in BCM5461, BCM5481,
30 * BCM5482, and possibly some others.
31 */
32#define BCM_LED_SRC_LINKSPD1 0x0
33#define BCM_LED_SRC_LINKSPD2 0x1
34#define BCM_LED_SRC_XMITLED 0x2
35#define BCM_LED_SRC_ACTIVITYLED 0x3
36#define BCM_LED_SRC_FDXLED 0x4
37#define BCM_LED_SRC_SLAVE 0x5
38#define BCM_LED_SRC_INTR 0x6
39#define BCM_LED_SRC_QUALITY 0x7
40#define BCM_LED_SRC_RCVLED 0x8
41#define BCM_LED_SRC_MULTICOLOR1 0xa
42#define BCM_LED_SRC_OPENSHORT 0xb
43#define BCM_LED_SRC_OFF 0xe /* Tied high */
44#define BCM_LED_SRC_ON 0xf /* Tied low */
45
Matt Carlson32e5a8d2009-11-02 14:31:39 +000046
Nate Casecd9af3d2008-05-17 06:40:39 +010047/*
48 * BCM5482: Shadow registers
49 * Shadow values go into bits [14:10] of register 0x1c to select a shadow
50 * register to access.
51 */
Matt Carlson32e5a8d2009-11-02 14:31:39 +000052/* 00101: Spare Control Register 3 */
53#define BCM54XX_SHD_SCR3 0x05
54#define BCM54XX_SHD_SCR3_DEF_CLK125 0x0001
Matt Carlsonc704dc22009-11-02 14:32:12 +000055#define BCM54XX_SHD_SCR3_DLLAPD_DIS 0x0002
Matt Carlson52fae082009-11-02 14:32:38 +000056#define BCM54XX_SHD_SCR3_TRDDAPD 0x0004
Matt Carlsonc704dc22009-11-02 14:32:12 +000057
58/* 01010: Auto Power-Down */
59#define BCM54XX_SHD_APD 0x0a
60#define BCM54XX_SHD_APD_EN 0x0020
Matt Carlson32e5a8d2009-11-02 14:31:39 +000061
Nate Casecd9af3d2008-05-17 06:40:39 +010062#define BCM5482_SHD_LEDS1 0x0d /* 01101: LED Selector 1 */
63 /* LED3 / ~LINKSPD[2] selector */
64#define BCM5482_SHD_LEDS1_LED3(src) ((src & 0xf) << 4)
65 /* LED1 / ~LINKSPD[1] selector */
66#define BCM5482_SHD_LEDS1_LED1(src) ((src & 0xf) << 0)
Matt Carlson63a14ce2009-11-02 14:30:40 +000067#define BCM54XX_SHD_RGMII_MODE 0x0b /* 01011: RGMII Mode Selector */
Nate Casecd9af3d2008-05-17 06:40:39 +010068#define BCM5482_SHD_SSD 0x14 /* 10100: Secondary SerDes control */
69#define BCM5482_SHD_SSD_LEDM 0x0008 /* SSD LED Mode enable */
70#define BCM5482_SHD_SSD_EN 0x0001 /* SSD enable */
71#define BCM5482_SHD_MODE 0x1f /* 11111: Mode Control Register */
72#define BCM5482_SHD_MODE_1000BX 0x0001 /* Enable 1000BASE-X registers */
73
Matt Carlson32e5a8d2009-11-02 14:31:39 +000074
Nate Casecd9af3d2008-05-17 06:40:39 +010075/*
Matt Carlson772638b2008-11-03 16:56:51 -080076 * EXPANSION SHADOW ACCESS REGISTERS. (PHY REG 0x15, 0x16, and 0x17)
77 */
78#define MII_BCM54XX_EXP_AADJ1CH0 0x001f
79#define MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN 0x0200
80#define MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF 0x0100
81#define MII_BCM54XX_EXP_AADJ1CH3 0x601f
82#define MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ 0x0002
83#define MII_BCM54XX_EXP_EXP08 0x0F08
84#define MII_BCM54XX_EXP_EXP08_RJCT_2MHZ 0x0001
85#define MII_BCM54XX_EXP_EXP08_EARLY_DAC_WAKE 0x0200
86#define MII_BCM54XX_EXP_EXP75 0x0f75
87#define MII_BCM54XX_EXP_EXP75_VDACCTRL 0x003c
Matt Carlsond9221e62009-08-25 10:11:26 +000088#define MII_BCM54XX_EXP_EXP75_CM_OSC 0x0001
Matt Carlson772638b2008-11-03 16:56:51 -080089#define MII_BCM54XX_EXP_EXP96 0x0f96
90#define MII_BCM54XX_EXP_EXP96_MYST 0x0010
91#define MII_BCM54XX_EXP_EXP97 0x0f97
92#define MII_BCM54XX_EXP_EXP97_MYST 0x0c0c
93
94/*
Nate Casecd9af3d2008-05-17 06:40:39 +010095 * BCM5482: Secondary SerDes registers
96 */
97#define BCM5482_SSD_1000BX_CTL 0x00 /* 1000BASE-X Control */
98#define BCM5482_SSD_1000BX_CTL_PWRDOWN 0x0800 /* Power-down SSD */
99#define BCM5482_SSD_SGMII_SLAVE 0x15 /* SGMII Slave Register */
100#define BCM5482_SSD_SGMII_SLAVE_EN 0x0002 /* Slave mode enable */
101#define BCM5482_SSD_SGMII_SLAVE_AD 0x0001 /* Slave auto-detection */
102
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000103
104/*****************************************************************************/
105/* Fast Ethernet Transceiver definitions. */
106/*****************************************************************************/
107
108#define MII_BRCM_FET_INTREG 0x1a /* Interrupt register */
109#define MII_BRCM_FET_IR_MASK 0x0100 /* Mask all interrupts */
110#define MII_BRCM_FET_IR_LINK_EN 0x0200 /* Link status change enable */
111#define MII_BRCM_FET_IR_SPEED_EN 0x0400 /* Link speed change enable */
112#define MII_BRCM_FET_IR_DUPLEX_EN 0x0800 /* Duplex mode change enable */
113#define MII_BRCM_FET_IR_ENABLE 0x4000 /* Interrupt enable */
114
115#define MII_BRCM_FET_BRCMTEST 0x1f /* Brcm test register */
116#define MII_BRCM_FET_BT_SRE 0x0080 /* Shadow register enable */
117
118
119/*** Shadow register definitions ***/
120
121#define MII_BRCM_FET_SHDW_MISCCTRL 0x10 /* Shadow misc ctrl */
122#define MII_BRCM_FET_SHDW_MC_FAME 0x4000 /* Force Auto MDIX enable */
123
124#define MII_BRCM_FET_SHDW_AUXMODE4 0x1a /* Auxiliary mode 4 */
125#define MII_BRCM_FET_SHDW_AM4_LED_MASK 0x0003
126#define MII_BRCM_FET_SHDW_AM4_LED_MODE1 0x0001
127
128#define MII_BRCM_FET_SHDW_AUXSTAT2 0x1b /* Auxiliary status 2 */
129#define MII_BRCM_FET_SHDW_AS2_APDE 0x0020 /* Auto power down enable */
130
131
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100132MODULE_DESCRIPTION("Broadcom PHY driver");
133MODULE_AUTHOR("Maciej W. Rozycki");
134MODULE_LICENSE("GPL");
135
Nate Casecd9af3d2008-05-17 06:40:39 +0100136/*
137 * Indirect register access functions for the 1000BASE-T/100BASE-TX/10BASE-T
138 * 0x1c shadow registers.
139 */
140static int bcm54xx_shadow_read(struct phy_device *phydev, u16 shadow)
141{
142 phy_write(phydev, MII_BCM54XX_SHD, MII_BCM54XX_SHD_VAL(shadow));
143 return MII_BCM54XX_SHD_DATA(phy_read(phydev, MII_BCM54XX_SHD));
144}
145
146static int bcm54xx_shadow_write(struct phy_device *phydev, u16 shadow, u16 val)
147{
148 return phy_write(phydev, MII_BCM54XX_SHD,
149 MII_BCM54XX_SHD_WRITE |
150 MII_BCM54XX_SHD_VAL(shadow) |
151 MII_BCM54XX_SHD_DATA(val));
152}
153
Matt Carlson042a75b2008-11-03 16:56:29 -0800154/* Indirect register access functions for the Expansion Registers */
Matt Carlsond9221e62009-08-25 10:11:26 +0000155static int bcm54xx_exp_read(struct phy_device *phydev, u16 regnum)
Nate Casecd9af3d2008-05-17 06:40:39 +0100156{
157 int val;
158
Matt Carlson042a75b2008-11-03 16:56:29 -0800159 val = phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
160 if (val < 0)
161 return val;
162
Nate Casecd9af3d2008-05-17 06:40:39 +0100163 val = phy_read(phydev, MII_BCM54XX_EXP_DATA);
Matt Carlson042a75b2008-11-03 16:56:29 -0800164
165 /* Restore default value. It's O.K. if this write fails. */
166 phy_write(phydev, MII_BCM54XX_EXP_SEL, 0);
Nate Casecd9af3d2008-05-17 06:40:39 +0100167
168 return val;
169}
170
Matt Carlson772638b2008-11-03 16:56:51 -0800171static int bcm54xx_exp_write(struct phy_device *phydev, u16 regnum, u16 val)
Nate Casecd9af3d2008-05-17 06:40:39 +0100172{
173 int ret;
174
Matt Carlson042a75b2008-11-03 16:56:29 -0800175 ret = phy_write(phydev, MII_BCM54XX_EXP_SEL, regnum);
176 if (ret < 0)
177 return ret;
178
Nate Casecd9af3d2008-05-17 06:40:39 +0100179 ret = phy_write(phydev, MII_BCM54XX_EXP_DATA, val);
Matt Carlson042a75b2008-11-03 16:56:29 -0800180
181 /* Restore default value. It's O.K. if this write fails. */
182 phy_write(phydev, MII_BCM54XX_EXP_SEL, 0);
Nate Casecd9af3d2008-05-17 06:40:39 +0100183
184 return ret;
185}
186
Matt Carlson772638b2008-11-03 16:56:51 -0800187static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
188{
189 return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
190}
191
Matt Carlson47b1b532009-11-02 14:28:04 +0000192/* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
Matt Carlson772638b2008-11-03 16:56:51 -0800193static int bcm50610_a0_workaround(struct phy_device *phydev)
194{
195 int err;
196
Matt Carlson47b1b532009-11-02 14:28:04 +0000197 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH0,
198 MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN |
199 MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF);
200 if (err < 0)
201 return err;
202
203 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_AADJ1CH3,
204 MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ);
205 if (err < 0)
206 return err;
207
208 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP75,
209 MII_BCM54XX_EXP_EXP75_VDACCTRL);
210 if (err < 0)
211 return err;
212
213 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP96,
214 MII_BCM54XX_EXP_EXP96_MYST);
215 if (err < 0)
216 return err;
217
218 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP97,
219 MII_BCM54XX_EXP_EXP97_MYST);
220
221 return err;
222}
223
224static int bcm54xx_phydsp_config(struct phy_device *phydev)
225{
226 int err, err2;
227
228 /* Enable the SMDSP clock */
Matt Carlson772638b2008-11-03 16:56:51 -0800229 err = bcm54xx_auxctl_write(phydev,
230 MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
231 MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA |
232 MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
233 if (err < 0)
234 return err;
235
Matt Carlson219c6ef2009-11-02 14:28:33 +0000236 if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
237 BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) {
238 /* Clear bit 9 to fix a phy interop issue. */
239 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP08,
240 MII_BCM54XX_EXP_EXP08_RJCT_2MHZ);
241 if (err < 0)
242 goto error;
243
244 if (phydev->drv->phy_id == PHY_ID_BCM50610) {
245 err = bcm50610_a0_workaround(phydev);
246 if (err < 0)
247 goto error;
248 }
249 }
Matt Carlson772638b2008-11-03 16:56:51 -0800250
Matt Carlson47b1b532009-11-02 14:28:04 +0000251 if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) {
252 int val;
Matt Carlson772638b2008-11-03 16:56:51 -0800253
Matt Carlson47b1b532009-11-02 14:28:04 +0000254 val = bcm54xx_exp_read(phydev, MII_BCM54XX_EXP_EXP75);
255 if (val < 0)
256 goto error;
Matt Carlson772638b2008-11-03 16:56:51 -0800257
Matt Carlson47b1b532009-11-02 14:28:04 +0000258 val |= MII_BCM54XX_EXP_EXP75_CM_OSC;
259 err = bcm54xx_exp_write(phydev, MII_BCM54XX_EXP_EXP75, val);
260 }
Matt Carlson772638b2008-11-03 16:56:51 -0800261
262error:
Matt Carlson47b1b532009-11-02 14:28:04 +0000263 /* Disable the SMDSP clock */
264 err2 = bcm54xx_auxctl_write(phydev,
265 MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
266 MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
Matt Carlson772638b2008-11-03 16:56:51 -0800267
Matt Carlson47b1b532009-11-02 14:28:04 +0000268 /* Return the first error reported. */
269 return err ? err : err2;
Matt Carlson772638b2008-11-03 16:56:51 -0800270}
271
Matt Carlson32e5a8d2009-11-02 14:31:39 +0000272static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev)
273{
Roel Kluin5ee6f6a2009-12-18 20:16:10 -0800274 u32 orig;
275 int val;
Matt Carlsonc704dc22009-11-02 14:32:12 +0000276 bool clk125en = true;
Matt Carlson32e5a8d2009-11-02 14:31:39 +0000277
278 /* Abort if we are using an untested phy. */
roel kluin7ec4e7d2009-12-30 06:43:06 +0000279 if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 &&
280 BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 &&
Matt Carlson32e5a8d2009-11-02 14:31:39 +0000281 BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M)
282 return;
283
284 val = bcm54xx_shadow_read(phydev, BCM54XX_SHD_SCR3);
285 if (val < 0)
286 return;
287
288 orig = val;
289
Matt Carlsonc704dc22009-11-02 14:32:12 +0000290 if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
291 BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
292 BRCM_PHY_REV(phydev) >= 0x3) {
293 /*
294 * Here, bit 0 _disables_ CLK125 when set.
295 * This bit is set by default.
296 */
297 clk125en = false;
298 } else {
299 if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) {
Matt Carlson32e5a8d2009-11-02 14:31:39 +0000300 /* Here, bit 0 _enables_ CLK125 when set */
301 val &= ~BCM54XX_SHD_SCR3_DEF_CLK125;
Matt Carlsonc704dc22009-11-02 14:32:12 +0000302 clk125en = false;
Matt Carlson32e5a8d2009-11-02 14:31:39 +0000303 }
304 }
305
Joe Perches23677ce2012-02-09 11:17:23 +0000306 if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
Matt Carlsonc704dc22009-11-02 14:32:12 +0000307 val &= ~BCM54XX_SHD_SCR3_DLLAPD_DIS;
308 else
309 val |= BCM54XX_SHD_SCR3_DLLAPD_DIS;
310
Matt Carlson52fae082009-11-02 14:32:38 +0000311 if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY)
312 val |= BCM54XX_SHD_SCR3_TRDDAPD;
313
Matt Carlson32e5a8d2009-11-02 14:31:39 +0000314 if (orig != val)
315 bcm54xx_shadow_write(phydev, BCM54XX_SHD_SCR3, val);
Matt Carlsonc704dc22009-11-02 14:32:12 +0000316
317 val = bcm54xx_shadow_read(phydev, BCM54XX_SHD_APD);
318 if (val < 0)
319 return;
320
321 orig = val;
322
Joe Perches23677ce2012-02-09 11:17:23 +0000323 if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
Matt Carlsonc704dc22009-11-02 14:32:12 +0000324 val |= BCM54XX_SHD_APD_EN;
325 else
326 val &= ~BCM54XX_SHD_APD_EN;
327
328 if (orig != val)
329 bcm54xx_shadow_write(phydev, BCM54XX_SHD_APD, val);
Matt Carlson32e5a8d2009-11-02 14:31:39 +0000330}
331
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100332static int bcm54xx_config_init(struct phy_device *phydev)
333{
334 int reg, err;
335
336 reg = phy_read(phydev, MII_BCM54XX_ECR);
337 if (reg < 0)
338 return reg;
339
340 /* Mask interrupts globally. */
341 reg |= MII_BCM54XX_ECR_IM;
342 err = phy_write(phydev, MII_BCM54XX_ECR, reg);
343 if (err < 0)
344 return err;
345
346 /* Unmask events we are interested in. */
347 reg = ~(MII_BCM54XX_INT_DUPLEX |
348 MII_BCM54XX_INT_SPEED |
349 MII_BCM54XX_INT_LINK);
350 err = phy_write(phydev, MII_BCM54XX_IMR, reg);
351 if (err < 0)
352 return err;
Matt Carlson772638b2008-11-03 16:56:51 -0800353
Matt Carlson63a14ce2009-11-02 14:30:40 +0000354 if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
355 BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
356 (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))
357 bcm54xx_shadow_write(phydev, BCM54XX_SHD_RGMII_MODE, 0);
358
Matt Carlsonc704dc22009-11-02 14:32:12 +0000359 if ((phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) ||
Matt Carlson52fae082009-11-02 14:32:38 +0000360 (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) ||
Matt Carlsonc704dc22009-11-02 14:32:12 +0000361 (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
Matt Carlson32e5a8d2009-11-02 14:31:39 +0000362 bcm54xx_adjust_rxrefclk(phydev);
363
Matt Carlson47b1b532009-11-02 14:28:04 +0000364 bcm54xx_phydsp_config(phydev);
Matt Carlsond9221e62009-08-25 10:11:26 +0000365
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100366 return 0;
367}
368
Nate Casecd9af3d2008-05-17 06:40:39 +0100369static int bcm5482_config_init(struct phy_device *phydev)
370{
371 int err, reg;
372
373 err = bcm54xx_config_init(phydev);
374
375 if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
376 /*
377 * Enable secondary SerDes and its use as an LED source
378 */
379 reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_SSD);
380 bcm54xx_shadow_write(phydev, BCM5482_SHD_SSD,
381 reg |
382 BCM5482_SHD_SSD_LEDM |
383 BCM5482_SHD_SSD_EN);
384
385 /*
386 * Enable SGMII slave mode and auto-detection
387 */
Matt Carlson042a75b2008-11-03 16:56:29 -0800388 reg = BCM5482_SSD_SGMII_SLAVE | MII_BCM54XX_EXP_SEL_SSD;
389 err = bcm54xx_exp_read(phydev, reg);
390 if (err < 0)
391 return err;
392 err = bcm54xx_exp_write(phydev, reg, err |
393 BCM5482_SSD_SGMII_SLAVE_EN |
394 BCM5482_SSD_SGMII_SLAVE_AD);
395 if (err < 0)
396 return err;
Nate Casecd9af3d2008-05-17 06:40:39 +0100397
398 /*
399 * Disable secondary SerDes powerdown
400 */
Matt Carlson042a75b2008-11-03 16:56:29 -0800401 reg = BCM5482_SSD_1000BX_CTL | MII_BCM54XX_EXP_SEL_SSD;
402 err = bcm54xx_exp_read(phydev, reg);
403 if (err < 0)
404 return err;
405 err = bcm54xx_exp_write(phydev, reg,
406 err & ~BCM5482_SSD_1000BX_CTL_PWRDOWN);
407 if (err < 0)
408 return err;
Nate Casecd9af3d2008-05-17 06:40:39 +0100409
410 /*
411 * Select 1000BASE-X register set (primary SerDes)
412 */
413 reg = bcm54xx_shadow_read(phydev, BCM5482_SHD_MODE);
414 bcm54xx_shadow_write(phydev, BCM5482_SHD_MODE,
415 reg | BCM5482_SHD_MODE_1000BX);
416
417 /*
418 * LED1=ACTIVITYLED, LED3=LINKSPD[2]
419 * (Use LED1 as secondary SerDes ACTIVITY LED)
420 */
421 bcm54xx_shadow_write(phydev, BCM5482_SHD_LEDS1,
422 BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_ACTIVITYLED) |
423 BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_LINKSPD2));
424
425 /*
426 * Auto-negotiation doesn't seem to work quite right
427 * in this mode, so we disable it and force it to the
428 * right speed/duplex setting. Only 'link status'
429 * is important.
430 */
431 phydev->autoneg = AUTONEG_DISABLE;
432 phydev->speed = SPEED_1000;
433 phydev->duplex = DUPLEX_FULL;
434 }
435
436 return err;
437}
438
439static int bcm5482_read_status(struct phy_device *phydev)
440{
441 int err;
442
443 err = genphy_read_status(phydev);
444
445 if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
446 /*
447 * Only link status matters for 1000Base-X mode, so force
448 * 1000 Mbit/s full-duplex status
449 */
450 if (phydev->link) {
451 phydev->speed = SPEED_1000;
452 phydev->duplex = DUPLEX_FULL;
453 }
454 }
455
456 return err;
457}
458
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100459static int bcm54xx_ack_interrupt(struct phy_device *phydev)
460{
461 int reg;
462
463 /* Clear pending interrupts. */
464 reg = phy_read(phydev, MII_BCM54XX_ISR);
465 if (reg < 0)
466 return reg;
467
468 return 0;
469}
470
471static int bcm54xx_config_intr(struct phy_device *phydev)
472{
473 int reg, err;
474
475 reg = phy_read(phydev, MII_BCM54XX_ECR);
476 if (reg < 0)
477 return reg;
478
479 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
480 reg &= ~MII_BCM54XX_ECR_IM;
481 else
482 reg |= MII_BCM54XX_ECR_IM;
483
484 err = phy_write(phydev, MII_BCM54XX_ECR, reg);
485 return err;
486}
487
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300488static int bcm5481_config_aneg(struct phy_device *phydev)
489{
490 int ret;
491
492 /* Aneg firsly. */
493 ret = genphy_config_aneg(phydev);
494
495 /* Then we can set up the delay. */
496 if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
497 u16 reg;
498
499 /*
500 * There is no BCM5481 specification available, so down
501 * here is everything we know about "register 0x18". This
Joe Perchesbfb90352011-08-17 06:58:04 -0700502 * at least helps BCM5481 to successfully receive packets
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300503 * on MPC8360E-RDK board. Peter Barada <peterb@logicpd.com>
504 * says: "This sets delay between the RXD and RXC signals
505 * instead of using trace lengths to achieve timing".
506 */
507
508 /* Set RDX clk delay. */
509 reg = 0x7 | (0x7 << 12);
510 phy_write(phydev, 0x18, reg);
511
512 reg = phy_read(phydev, 0x18);
513 /* Set RDX-RXC skew. */
514 reg |= (1 << 8);
515 /* Write bits 14:0. */
516 reg |= (1 << 15);
517 phy_write(phydev, 0x18, reg);
518 }
519
520 return ret;
521}
522
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000523static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
524{
525 int val;
526
527 val = phy_read(phydev, reg);
528 if (val < 0)
529 return val;
530
531 return phy_write(phydev, reg, val | set);
532}
533
534static int brcm_fet_config_init(struct phy_device *phydev)
535{
536 int reg, err, err2, brcmtest;
537
538 /* Reset the PHY to bring it to a known state. */
539 err = phy_write(phydev, MII_BMCR, BMCR_RESET);
540 if (err < 0)
541 return err;
542
543 reg = phy_read(phydev, MII_BRCM_FET_INTREG);
544 if (reg < 0)
545 return reg;
546
547 /* Unmask events we are interested in and mask interrupts globally. */
548 reg = MII_BRCM_FET_IR_DUPLEX_EN |
549 MII_BRCM_FET_IR_SPEED_EN |
550 MII_BRCM_FET_IR_LINK_EN |
551 MII_BRCM_FET_IR_ENABLE |
552 MII_BRCM_FET_IR_MASK;
553
554 err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
555 if (err < 0)
556 return err;
557
558 /* Enable shadow register access */
559 brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST);
560 if (brcmtest < 0)
561 return brcmtest;
562
563 reg = brcmtest | MII_BRCM_FET_BT_SRE;
564
565 err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg);
566 if (err < 0)
567 return err;
568
569 /* Set the LED mode */
570 reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4);
571 if (reg < 0) {
572 err = reg;
573 goto done;
574 }
575
576 reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK;
577 reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1;
578
579 err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg);
580 if (err < 0)
581 goto done;
582
583 /* Enable auto MDIX */
584 err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL,
585 MII_BRCM_FET_SHDW_MC_FAME);
586 if (err < 0)
587 goto done;
588
Matt Carlsoncdd4e09d2009-11-02 14:31:11 +0000589 if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) {
590 /* Enable auto power down */
591 err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2,
592 MII_BRCM_FET_SHDW_AS2_APDE);
593 }
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000594
595done:
596 /* Disable shadow register access */
597 err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest);
598 if (!err)
599 err = err2;
600
601 return err;
602}
603
604static int brcm_fet_ack_interrupt(struct phy_device *phydev)
605{
606 int reg;
607
608 /* Clear pending interrupts. */
609 reg = phy_read(phydev, MII_BRCM_FET_INTREG);
610 if (reg < 0)
611 return reg;
612
613 return 0;
614}
615
616static int brcm_fet_config_intr(struct phy_device *phydev)
617{
618 int reg, err;
619
620 reg = phy_read(phydev, MII_BRCM_FET_INTREG);
621 if (reg < 0)
622 return reg;
623
624 if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
625 reg &= ~MII_BRCM_FET_IR_MASK;
626 else
627 reg |= MII_BRCM_FET_IR_MASK;
628
629 err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
630 return err;
631}
632
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000633static struct phy_driver broadcom_drivers[] = {
634{
Dmitry Baryshkovfcb26ec2010-06-16 23:02:23 +0000635 .phy_id = PHY_ID_BCM5411,
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100636 .phy_id_mask = 0xfffffff0,
637 .name = "Broadcom BCM5411",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800638 .features = PHY_GBIT_FEATURES |
639 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100640 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
641 .config_init = bcm54xx_config_init,
642 .config_aneg = genphy_config_aneg,
643 .read_status = genphy_read_status,
644 .ack_interrupt = bcm54xx_ack_interrupt,
645 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000646 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000647}, {
Dmitry Baryshkovfcb26ec2010-06-16 23:02:23 +0000648 .phy_id = PHY_ID_BCM5421,
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100649 .phy_id_mask = 0xfffffff0,
650 .name = "Broadcom BCM5421",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800651 .features = PHY_GBIT_FEATURES |
652 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100653 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
654 .config_init = bcm54xx_config_init,
655 .config_aneg = genphy_config_aneg,
656 .read_status = genphy_read_status,
657 .ack_interrupt = bcm54xx_ack_interrupt,
658 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000659 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000660}, {
Dmitry Baryshkovfcb26ec2010-06-16 23:02:23 +0000661 .phy_id = PHY_ID_BCM5461,
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100662 .phy_id_mask = 0xfffffff0,
663 .name = "Broadcom BCM5461",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800664 .features = PHY_GBIT_FEATURES |
665 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100666 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
667 .config_init = bcm54xx_config_init,
668 .config_aneg = genphy_config_aneg,
669 .read_status = genphy_read_status,
670 .ack_interrupt = bcm54xx_ack_interrupt,
671 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000672 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000673}, {
Dmitry Baryshkovfcb26ec2010-06-16 23:02:23 +0000674 .phy_id = PHY_ID_BCM5464,
Paul Gortmakerb1394f92008-04-14 23:35:41 -0400675 .phy_id_mask = 0xfffffff0,
676 .name = "Broadcom BCM5464",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800677 .features = PHY_GBIT_FEATURES |
678 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Paul Gortmakerb1394f92008-04-14 23:35:41 -0400679 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
680 .config_init = bcm54xx_config_init,
681 .config_aneg = genphy_config_aneg,
682 .read_status = genphy_read_status,
683 .ack_interrupt = bcm54xx_ack_interrupt,
684 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000685 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000686}, {
Dmitry Baryshkovfcb26ec2010-06-16 23:02:23 +0000687 .phy_id = PHY_ID_BCM5481,
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300688 .phy_id_mask = 0xfffffff0,
689 .name = "Broadcom BCM5481",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800690 .features = PHY_GBIT_FEATURES |
691 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Anton Vorontsov57bb7e22008-03-04 19:41:32 +0300692 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
693 .config_init = bcm54xx_config_init,
694 .config_aneg = bcm5481_config_aneg,
695 .read_status = genphy_read_status,
696 .ack_interrupt = bcm54xx_ack_interrupt,
697 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000698 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000699}, {
Dmitry Baryshkovfcb26ec2010-06-16 23:02:23 +0000700 .phy_id = PHY_ID_BCM5482,
Nate Case03157ac2008-01-29 10:19:00 -0600701 .phy_id_mask = 0xfffffff0,
702 .name = "Broadcom BCM5482",
Matt Carlson5e0c6762008-11-03 16:56:07 -0800703 .features = PHY_GBIT_FEATURES |
704 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
Nate Case03157ac2008-01-29 10:19:00 -0600705 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
Nate Casecd9af3d2008-05-17 06:40:39 +0100706 .config_init = bcm5482_config_init,
Nate Case03157ac2008-01-29 10:19:00 -0600707 .config_aneg = genphy_config_aneg,
Nate Casecd9af3d2008-05-17 06:40:39 +0100708 .read_status = bcm5482_read_status,
Nate Case03157ac2008-01-29 10:19:00 -0600709 .ack_interrupt = bcm54xx_ack_interrupt,
710 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000711 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000712}, {
Matt Carlson772638b2008-11-03 16:56:51 -0800713 .phy_id = PHY_ID_BCM50610,
714 .phy_id_mask = 0xfffffff0,
715 .name = "Broadcom BCM50610",
716 .features = PHY_GBIT_FEATURES |
717 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
718 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
719 .config_init = bcm54xx_config_init,
720 .config_aneg = genphy_config_aneg,
721 .read_status = genphy_read_status,
722 .ack_interrupt = bcm54xx_ack_interrupt,
723 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000724 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000725}, {
Matt Carlson4f4598f2009-08-25 10:10:30 +0000726 .phy_id = PHY_ID_BCM50610M,
727 .phy_id_mask = 0xfffffff0,
728 .name = "Broadcom BCM50610M",
729 .features = PHY_GBIT_FEATURES |
730 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
731 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
732 .config_init = bcm54xx_config_init,
733 .config_aneg = genphy_config_aneg,
734 .read_status = genphy_read_status,
735 .ack_interrupt = bcm54xx_ack_interrupt,
736 .config_intr = bcm54xx_config_intr,
737 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000738}, {
Matt Carlsond9221e62009-08-25 10:11:26 +0000739 .phy_id = PHY_ID_BCM57780,
Matt Carlson2fbb69a2008-11-21 17:22:53 -0800740 .phy_id_mask = 0xfffffff0,
741 .name = "Broadcom BCM57780",
742 .features = PHY_GBIT_FEATURES |
743 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
744 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
745 .config_init = bcm54xx_config_init,
746 .config_aneg = genphy_config_aneg,
747 .read_status = genphy_read_status,
748 .ack_interrupt = bcm54xx_ack_interrupt,
749 .config_intr = bcm54xx_config_intr,
Matt Carlson4f4598f2009-08-25 10:10:30 +0000750 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000751}, {
Matt Carlson6a443a02010-02-17 15:17:04 +0000752 .phy_id = PHY_ID_BCMAC131,
Matt Carlsond7a2ed92009-08-25 10:10:58 +0000753 .phy_id_mask = 0xfffffff0,
754 .name = "Broadcom BCMAC131",
755 .features = PHY_BASIC_FEATURES |
756 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
757 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
758 .config_init = brcm_fet_config_init,
759 .config_aneg = genphy_config_aneg,
760 .read_status = genphy_read_status,
761 .ack_interrupt = brcm_fet_ack_interrupt,
762 .config_intr = brcm_fet_config_intr,
763 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000764}, {
Dmitry Baryshkov7a938f82010-06-16 23:02:24 +0000765 .phy_id = PHY_ID_BCM5241,
766 .phy_id_mask = 0xfffffff0,
767 .name = "Broadcom BCM5241",
768 .features = PHY_BASIC_FEATURES |
769 SUPPORTED_Pause | SUPPORTED_Asym_Pause,
770 .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
771 .config_init = brcm_fet_config_init,
772 .config_aneg = genphy_config_aneg,
773 .read_status = genphy_read_status,
774 .ack_interrupt = brcm_fet_ack_interrupt,
775 .config_intr = brcm_fet_config_intr,
776 .driver = { .owner = THIS_MODULE },
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000777} };
Dmitry Baryshkov7a938f82010-06-16 23:02:24 +0000778
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100779static int __init broadcom_init(void)
780{
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000781 return phy_drivers_register(broadcom_drivers,
782 ARRAY_SIZE(broadcom_drivers));
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100783}
784
785static void __exit broadcom_exit(void)
786{
Christian Hohnstaedtd5bf9072012-07-04 05:44:34 +0000787 phy_drivers_unregister(broadcom_drivers,
788 ARRAY_SIZE(broadcom_drivers));
Maciej W. Rozyckic4b41c92006-10-03 16:18:13 +0100789}
790
791module_init(broadcom_init);
792module_exit(broadcom_exit);
David Woodhouse4e4f10f2010-04-02 01:05:56 +0000793
Uwe Kleine-Königcf93c942010-10-03 23:43:32 +0000794static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
Dmitry Baryshkovfcb26ec2010-06-16 23:02:23 +0000795 { PHY_ID_BCM5411, 0xfffffff0 },
796 { PHY_ID_BCM5421, 0xfffffff0 },
797 { PHY_ID_BCM5461, 0xfffffff0 },
798 { PHY_ID_BCM5464, 0xfffffff0 },
799 { PHY_ID_BCM5482, 0xfffffff0 },
800 { PHY_ID_BCM5482, 0xfffffff0 },
David Woodhouse4e4f10f2010-04-02 01:05:56 +0000801 { PHY_ID_BCM50610, 0xfffffff0 },
802 { PHY_ID_BCM50610M, 0xfffffff0 },
803 { PHY_ID_BCM57780, 0xfffffff0 },
804 { PHY_ID_BCMAC131, 0xfffffff0 },
Dmitry Baryshkov7a938f82010-06-16 23:02:24 +0000805 { PHY_ID_BCM5241, 0xfffffff0 },
David Woodhouse4e4f10f2010-04-02 01:05:56 +0000806 { }
807};
808
809MODULE_DEVICE_TABLE(mdio, broadcom_tbl);