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v6.13.7
   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 *	drivers/net/phy/broadcom.c
   4 *
   5 *	Broadcom BCM5411, BCM5421 and BCM5461 Gigabit Ethernet
   6 *	transceivers.
   7 *
   8 *	Broadcom BCM54810, BCM54811 BroadR-Reach transceivers.
   9 *
  10 *	Copyright (c) 2006  Maciej W. Rozycki
  11 *
  12 *	Inspired by code written by Amy Fong.
 
 
 
 
 
  13 */
  14
  15#include "bcm-phy-lib.h"
  16#include <linux/delay.h>
  17#include <linux/module.h>
  18#include <linux/phy.h>
  19#include <linux/pm_wakeup.h>
  20#include <linux/brcmphy.h>
  21#include <linux/of.h>
  22#include <linux/interrupt.h>
  23#include <linux/irq.h>
  24#include <linux/gpio/consumer.h>
  25
  26#define BRCM_PHY_MODEL(phydev) \
  27	((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
  28
  29#define BRCM_PHY_REV(phydev) \
  30	((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask))
  31
  32MODULE_DESCRIPTION("Broadcom PHY driver");
  33MODULE_AUTHOR("Maciej W. Rozycki");
  34MODULE_LICENSE("GPL");
  35
  36struct bcm54xx_phy_priv {
  37	u64	*stats;
  38	struct bcm_ptp_private *ptp;
  39	int	wake_irq;
  40	bool	wake_irq_enabled;
  41	bool	brr_mode;
  42};
  43
  44/* Link modes for BCM58411 PHY */
  45static const int bcm54811_linkmodes[] = {
  46	ETHTOOL_LINK_MODE_100baseT1_Full_BIT,
  47	ETHTOOL_LINK_MODE_10baseT1BRR_Full_BIT,
  48	ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
  49	ETHTOOL_LINK_MODE_1000baseX_Full_BIT,
  50	ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
  51	ETHTOOL_LINK_MODE_100baseT_Full_BIT,
  52	ETHTOOL_LINK_MODE_100baseT_Half_BIT,
  53	ETHTOOL_LINK_MODE_10baseT_Full_BIT,
  54	ETHTOOL_LINK_MODE_10baseT_Half_BIT
  55};
  56
  57/* Long-Distance Signaling (BroadR-Reach mode aneg) relevant linkmode bits */
  58static const int lds_br_bits[] = {
  59	ETHTOOL_LINK_MODE_Autoneg_BIT,
  60	ETHTOOL_LINK_MODE_Pause_BIT,
  61	ETHTOOL_LINK_MODE_Asym_Pause_BIT,
  62	ETHTOOL_LINK_MODE_10baseT1BRR_Full_BIT,
  63	ETHTOOL_LINK_MODE_100baseT1_Full_BIT
  64};
  65
  66static bool bcm54xx_phy_can_wakeup(struct phy_device *phydev)
 
 
 
 
 
 
 
 
 
  67{
  68	struct bcm54xx_phy_priv *priv = phydev->priv;
 
 
 
 
 
 
 
 
 
 
 
  69
  70	return phy_interrupt_is_valid(phydev) || priv->wake_irq >= 0;
 
 
 
 
 
 
 
 
 
 
  71}
  72
  73static int bcm54xx_config_clock_delay(struct phy_device *phydev)
  74{
  75	int rc, val;
  76
  77	/* handling PHY's internal RX clock delay */
  78	val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
  79	val |= MII_BCM54XX_AUXCTL_MISC_WREN;
  80	if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||
  81	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
  82		/* Disable RGMII RXC-RXD skew */
  83		val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
  84	}
  85	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
  86	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
  87		/* Enable RGMII RXC-RXD skew */
  88		val |= MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
  89	}
  90	rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
  91				  val);
  92	if (rc < 0)
  93		return rc;
  94
  95	/* handling PHY's internal TX clock delay */
  96	val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
  97	if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||
  98	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
  99		/* Disable internal TX clock delay */
 100		val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
 101	}
 102	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
 103	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
 104		/* Enable internal TX clock delay */
 105		val |= BCM54810_SHD_CLK_CTL_GTXCLK_EN;
 106	}
 107	rc = bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
 108	if (rc < 0)
 109		return rc;
 110
 111	return 0;
 112}
 113
 114static int bcm54210e_config_init(struct phy_device *phydev)
 115{
 116	int val;
 117
 118	bcm54xx_config_clock_delay(phydev);
 119
 120	if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) {
 121		val = phy_read(phydev, MII_CTRL1000);
 122		val |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER;
 123		phy_write(phydev, MII_CTRL1000, val);
 124	}
 125
 126	return 0;
 127}
 128
 129static int bcm54612e_config_init(struct phy_device *phydev)
 130{
 131	int reg;
 132
 133	bcm54xx_config_clock_delay(phydev);
 134
 135	/* Enable CLK125 MUX on LED4 if ref clock is enabled. */
 136	if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) {
 137		int err;
 138
 139		reg = bcm_phy_read_exp(phydev, BCM54612E_EXP_SPARE0);
 140		err = bcm_phy_write_exp(phydev, BCM54612E_EXP_SPARE0,
 141					BCM54612E_LED4_CLK125OUT_EN | reg);
 142
 143		if (err < 0)
 144			return err;
 145	}
 146
 147	return 0;
 148}
 149
 150static int bcm54616s_config_init(struct phy_device *phydev)
 151{
 152	int rc, val;
 153
 154	if (phydev->interface != PHY_INTERFACE_MODE_SGMII &&
 155	    phydev->interface != PHY_INTERFACE_MODE_1000BASEX)
 156		return 0;
 157
 158	/* Ensure proper interface mode is selected. */
 159	/* Disable RGMII mode */
 160	val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
 161	if (val < 0)
 162		return val;
 163	val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_EN;
 164	val |= MII_BCM54XX_AUXCTL_MISC_WREN;
 165	rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
 166				  val);
 167	if (rc < 0)
 168		return rc;
 169
 170	/* Select 1000BASE-X register set (primary SerDes) */
 171	val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_MODE);
 172	if (val < 0)
 173		return val;
 174	val |= BCM54XX_SHD_MODE_1000BX;
 175	rc = bcm_phy_write_shadow(phydev, BCM54XX_SHD_MODE, val);
 176	if (rc < 0)
 177		return rc;
 178
 179	/* Power down SerDes interface */
 180	rc = phy_set_bits(phydev, MII_BMCR, BMCR_PDOWN);
 181	if (rc < 0)
 182		return rc;
 183
 184	/* Select proper interface mode */
 185	val &= ~BCM54XX_SHD_INTF_SEL_MASK;
 186	val |= phydev->interface == PHY_INTERFACE_MODE_SGMII ?
 187		BCM54XX_SHD_INTF_SEL_SGMII :
 188		BCM54XX_SHD_INTF_SEL_GBIC;
 189	rc = bcm_phy_write_shadow(phydev, BCM54XX_SHD_MODE, val);
 190	if (rc < 0)
 191		return rc;
 192
 193	/* Power up SerDes interface */
 194	rc = phy_clear_bits(phydev, MII_BMCR, BMCR_PDOWN);
 195	if (rc < 0)
 196		return rc;
 197
 198	/* Select copper register set */
 199	val &= ~BCM54XX_SHD_MODE_1000BX;
 200	rc = bcm_phy_write_shadow(phydev, BCM54XX_SHD_MODE, val);
 201	if (rc < 0)
 202		return rc;
 203
 204	/* Power up copper interface */
 205	return phy_clear_bits(phydev, MII_BMCR, BMCR_PDOWN);
 206}
 207
 208/* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
 209static int bcm50610_a0_workaround(struct phy_device *phydev)
 210{
 211	int err;
 212
 213	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH0,
 214				MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN |
 215				MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF);
 216	if (err < 0)
 217		return err;
 218
 219	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH3,
 220				MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ);
 221	if (err < 0)
 222		return err;
 223
 224	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75,
 225				MII_BCM54XX_EXP_EXP75_VDACCTRL);
 226	if (err < 0)
 227		return err;
 228
 229	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP96,
 230				MII_BCM54XX_EXP_EXP96_MYST);
 231	if (err < 0)
 232		return err;
 233
 234	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP97,
 235				MII_BCM54XX_EXP_EXP97_MYST);
 236
 237	return err;
 238}
 239
 240static int bcm54xx_phydsp_config(struct phy_device *phydev)
 241{
 242	int err, err2;
 243
 244	/* Enable the SMDSP clock */
 245	err = bcm54xx_auxctl_write(phydev,
 246				   MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
 247				   MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA |
 248				   MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
 249	if (err < 0)
 250		return err;
 251
 252	if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
 253	    BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) {
 254		/* Clear bit 9 to fix a phy interop issue. */
 255		err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP08,
 256					MII_BCM54XX_EXP_EXP08_RJCT_2MHZ);
 257		if (err < 0)
 258			goto error;
 259
 260		if (phydev->drv->phy_id == PHY_ID_BCM50610) {
 261			err = bcm50610_a0_workaround(phydev);
 262			if (err < 0)
 263				goto error;
 264		}
 265	}
 266
 267	if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) {
 268		int val;
 269
 270		val = bcm_phy_read_exp(phydev, MII_BCM54XX_EXP_EXP75);
 271		if (val < 0)
 272			goto error;
 273
 274		val |= MII_BCM54XX_EXP_EXP75_CM_OSC;
 275		err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75, val);
 276	}
 277
 278error:
 279	/* Disable the SMDSP clock */
 280	err2 = bcm54xx_auxctl_write(phydev,
 281				    MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
 282				    MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
 283
 284	/* Return the first error reported. */
 285	return err ? err : err2;
 286}
 287
 288static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev)
 289{
 290	u32 orig;
 291	int val;
 292	bool clk125en = true;
 293
 294	/* Abort if we are using an untested phy. */
 295	if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 &&
 296	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 &&
 297	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M &&
 298	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54210E &&
 299	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54810 &&
 300	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811)
 301		return;
 302
 303	val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_SCR3);
 304	if (val < 0)
 305		return;
 306
 307	orig = val;
 308
 309	if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
 310	     BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
 311	    BRCM_PHY_REV(phydev) >= 0x3) {
 312		/*
 313		 * Here, bit 0 _disables_ CLK125 when set.
 314		 * This bit is set by default.
 315		 */
 316		clk125en = false;
 317	} else {
 318		if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) {
 319			if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811) {
 320				/* Here, bit 0 _enables_ CLK125 when set */
 321				val &= ~BCM54XX_SHD_SCR3_DEF_CLK125;
 322			}
 323			clk125en = false;
 324		}
 325	}
 326
 327	if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
 328		val &= ~BCM54XX_SHD_SCR3_DLLAPD_DIS;
 329	else
 330		val |= BCM54XX_SHD_SCR3_DLLAPD_DIS;
 331
 332	if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) {
 333		if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E ||
 334		    BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810 ||
 335		    BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54811)
 336			val |= BCM54XX_SHD_SCR3_RXCTXC_DIS;
 337		else
 338			val |= BCM54XX_SHD_SCR3_TRDDAPD;
 339	}
 340
 341	if (orig != val)
 342		bcm_phy_write_shadow(phydev, BCM54XX_SHD_SCR3, val);
 343
 344	val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_APD);
 345	if (val < 0)
 346		return;
 347
 348	orig = val;
 349
 350	if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
 351		val |= BCM54XX_SHD_APD_EN;
 352	else
 353		val &= ~BCM54XX_SHD_APD_EN;
 354
 355	if (orig != val)
 356		bcm_phy_write_shadow(phydev, BCM54XX_SHD_APD, val);
 357}
 358
 359static void bcm54xx_ptp_stop(struct phy_device *phydev)
 360{
 361	struct bcm54xx_phy_priv *priv = phydev->priv;
 362
 363	if (priv->ptp)
 364		bcm_ptp_stop(priv->ptp);
 365}
 366
 367static void bcm54xx_ptp_config_init(struct phy_device *phydev)
 368{
 369	struct bcm54xx_phy_priv *priv = phydev->priv;
 370
 371	if (priv->ptp)
 372		bcm_ptp_config_init(phydev);
 373}
 374
 375static int bcm5481x_set_brrmode(struct phy_device *phydev, bool on)
 376{
 377	int reg;
 378	int err;
 379	u16 val;
 380
 381	reg = bcm_phy_read_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL);
 382
 383	if (reg < 0)
 384		return reg;
 385
 386	if (on)
 387		reg |= BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN;
 388	else
 389		reg &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN;
 390
 391	err = bcm_phy_write_exp(phydev,
 392				BCM54810_EXP_BROADREACH_LRE_MISC_CTL, reg);
 393	if (err)
 394		return err;
 395
 396	/* Ensure LRE or IEEE register set is accessed according to the brr
 397	 *  on/off, thus set the override
 398	 */
 399	val = BCM54811_EXP_BROADREACH_LRE_OVERLAY_CTL_EN;
 400	if (!on)
 401		val |= BCM54811_EXP_BROADREACH_LRE_OVERLAY_CTL_OVERRIDE_VAL;
 402
 403	return bcm_phy_write_exp(phydev,
 404				 BCM54811_EXP_BROADREACH_LRE_OVERLAY_CTL, val);
 405}
 406
 407static int bcm54811_config_init(struct phy_device *phydev)
 408{
 409	struct bcm54xx_phy_priv *priv = phydev->priv;
 410	int err, reg;
 411
 412	/* Enable CLK125 MUX on LED4 if ref clock is enabled. */
 413	if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) {
 414		reg = bcm_phy_read_exp(phydev, BCM54612E_EXP_SPARE0);
 415		if (reg < 0)
 416			return reg;
 417		err = bcm_phy_write_exp(phydev, BCM54612E_EXP_SPARE0,
 418					BCM54612E_LED4_CLK125OUT_EN | reg);
 419		if (err < 0)
 420			return err;
 421	}
 422
 423	/* With BCM54811, BroadR-Reach implies no autoneg */
 424	if (priv->brr_mode)
 425		phydev->autoneg = 0;
 426
 427	return bcm5481x_set_brrmode(phydev, priv->brr_mode);
 428}
 429
 430static int bcm54xx_config_init(struct phy_device *phydev)
 431{
 432	int reg, err, val;
 433
 434	reg = phy_read(phydev, MII_BCM54XX_ECR);
 435	if (reg < 0)
 436		return reg;
 437
 438	/* Mask interrupts globally.  */
 439	reg |= MII_BCM54XX_ECR_IM;
 440	err = phy_write(phydev, MII_BCM54XX_ECR, reg);
 441	if (err < 0)
 442		return err;
 443
 444	/* Unmask events we are interested in.  */
 445	reg = ~(MII_BCM54XX_INT_DUPLEX |
 446		MII_BCM54XX_INT_SPEED |
 447		MII_BCM54XX_INT_LINK);
 448	err = phy_write(phydev, MII_BCM54XX_IMR, reg);
 449	if (err < 0)
 450		return err;
 451
 452	if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
 453	     BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
 454	    (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))
 455		bcm_phy_write_shadow(phydev, BCM54XX_SHD_RGMII_MODE, 0);
 456
 457	bcm54xx_adjust_rxrefclk(phydev);
 
 
 
 458
 459	switch (BRCM_PHY_MODEL(phydev)) {
 460	case PHY_ID_BCM50610:
 461	case PHY_ID_BCM50610M:
 462		err = bcm54xx_config_clock_delay(phydev);
 463		break;
 464	case PHY_ID_BCM54210E:
 465		err = bcm54210e_config_init(phydev);
 466		break;
 467	case PHY_ID_BCM54612E:
 
 468		err = bcm54612e_config_init(phydev);
 469		break;
 470	case PHY_ID_BCM54616S:
 471		err = bcm54616s_config_init(phydev);
 472		break;
 473	case PHY_ID_BCM54810:
 474		/* For BCM54810, we need to disable BroadR-Reach function */
 475		val = bcm_phy_read_exp(phydev,
 476				       BCM54810_EXP_BROADREACH_LRE_MISC_CTL);
 477		val &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN;
 478		err = bcm_phy_write_exp(phydev,
 479					BCM54810_EXP_BROADREACH_LRE_MISC_CTL,
 480					val);
 481		break;
 482	case PHY_ID_BCM54811:
 483		err = bcm54811_config_init(phydev);
 484		break;
 485	}
 486	if (err)
 487		return err;
 488
 489	bcm54xx_phydsp_config(phydev);
 490
 491	/* For non-SFP setups, encode link speed into LED1 and LED3 pair
 492	 * (green/amber).
 493	 * Also flash these two LEDs on activity. This means configuring
 494	 * them for MULTICOLOR and encoding link/activity into them.
 495	 * Don't do this for devices on an SFP module, since some of these
 496	 * use the LED outputs to control the SFP LOS signal, and changing
 497	 * these settings will cause LOS to malfunction.
 498	 */
 499	if (!phy_on_sfp(phydev)) {
 500		val = BCM54XX_SHD_LEDS1_LED1(BCM_LED_SRC_MULTICOLOR1) |
 501			BCM54XX_SHD_LEDS1_LED3(BCM_LED_SRC_MULTICOLOR1);
 502		bcm_phy_write_shadow(phydev, BCM54XX_SHD_LEDS1, val);
 503
 504		val = BCM_LED_MULTICOLOR_IN_PHASE |
 505			BCM54XX_SHD_LEDS1_LED1(BCM_LED_MULTICOLOR_LINK_ACT) |
 506			BCM54XX_SHD_LEDS1_LED3(BCM_LED_MULTICOLOR_LINK_ACT);
 507		bcm_phy_write_exp(phydev, BCM_EXP_MULTICOLOR, val);
 508	}
 509
 510	bcm54xx_ptp_config_init(phydev);
 511
 512	/* Acknowledge any left over interrupt and charge the device for
 513	 * wake-up.
 514	 */
 515	err = bcm_phy_read_exp(phydev, BCM54XX_WOL_INT_STATUS);
 516	if (err < 0)
 517		return err;
 518
 519	if (err)
 520		pm_wakeup_event(&phydev->mdio.dev, 0);
 521
 522	return 0;
 523}
 524
 525static int bcm54xx_iddq_set(struct phy_device *phydev, bool enable)
 526{
 527	int ret = 0;
 528
 529	if (!(phydev->dev_flags & PHY_BRCM_IDDQ_SUSPEND))
 530		return ret;
 531
 532	ret = bcm_phy_read_exp(phydev, BCM54XX_TOP_MISC_IDDQ_CTRL);
 533	if (ret < 0)
 534		goto out;
 
 
 
 
 
 
 535
 536	if (enable)
 537		ret |= BCM54XX_TOP_MISC_IDDQ_SR | BCM54XX_TOP_MISC_IDDQ_LP;
 538	else
 539		ret &= ~(BCM54XX_TOP_MISC_IDDQ_SR | BCM54XX_TOP_MISC_IDDQ_LP);
 
 
 
 
 
 
 
 
 540
 541	ret = bcm_phy_write_exp(phydev, BCM54XX_TOP_MISC_IDDQ_CTRL, ret);
 542out:
 543	return ret;
 544}
 
 
 
 
 
 
 
 545
 546static int bcm54xx_set_wakeup_irq(struct phy_device *phydev, bool state)
 547{
 548	struct bcm54xx_phy_priv *priv = phydev->priv;
 549	int ret = 0;
 
 
 550
 551	if (!bcm54xx_phy_can_wakeup(phydev))
 552		return ret;
 
 
 
 
 
 553
 554	if (priv->wake_irq_enabled != state) {
 555		if (state)
 556			ret = enable_irq_wake(priv->wake_irq);
 557		else
 558			ret = disable_irq_wake(priv->wake_irq);
 559		priv->wake_irq_enabled = state;
 
 
 
 560	}
 561
 562	return ret;
 563}
 564
 565static int bcm54xx_suspend(struct phy_device *phydev)
 566{
 567	int ret = 0;
 568
 569	bcm54xx_ptp_stop(phydev);
 570
 571	/* Acknowledge any Wake-on-LAN interrupt prior to suspend */
 572	ret = bcm_phy_read_exp(phydev, BCM54XX_WOL_INT_STATUS);
 573	if (ret < 0)
 574		return ret;
 575
 576	if (phydev->wol_enabled)
 577		return bcm54xx_set_wakeup_irq(phydev, true);
 578
 579	/* We cannot use a read/modify/write here otherwise the PHY gets into
 580	 * a bad state where its LEDs keep flashing, thus defeating the purpose
 581	 * of low power mode.
 582	 */
 583	ret = phy_write(phydev, MII_BMCR, BMCR_PDOWN);
 584	if (ret < 0)
 585		return ret;
 586
 587	return bcm54xx_iddq_set(phydev, true);
 588}
 589
 590static int bcm54xx_resume(struct phy_device *phydev)
 591{
 592	int ret = 0;
 593
 594	if (phydev->wol_enabled) {
 595		ret = bcm54xx_set_wakeup_irq(phydev, false);
 596		if (ret)
 597			return ret;
 598	}
 599
 600	ret = bcm54xx_iddq_set(phydev, false);
 601	if (ret < 0)
 602		return ret;
 603
 604	/* Writes to register other than BMCR would be ignored
 605	 * unless we clear the PDOWN bit first
 606	 */
 607	ret = genphy_resume(phydev);
 608	if (ret < 0)
 609		return ret;
 610
 611	/* Upon exiting power down, the PHY remains in an internal reset state
 612	 * for 40us
 613	 */
 614	fsleep(40);
 615
 616	/* Issue a soft reset after clearing the power down bit
 617	 * and before doing any other configuration.
 618	 */
 619	if (phydev->dev_flags & PHY_BRCM_IDDQ_SUSPEND) {
 620		ret = genphy_soft_reset(phydev);
 621		if (ret < 0)
 622			return ret;
 623	}
 624
 625	return bcm54xx_config_init(phydev);
 626}
 627
 628static int bcm54810_read_mmd(struct phy_device *phydev, int devnum, u16 regnum)
 629{
 630	return -EOPNOTSUPP;
 631}
 632
 633static int bcm54810_write_mmd(struct phy_device *phydev, int devnum, u16 regnum,
 634			      u16 val)
 635{
 636	return -EOPNOTSUPP;
 637}
 638
 639
 640/**
 641 * bcm5481x_read_abilities - read PHY abilities from LRESR or Clause 22
 642 * (BMSR) registers, based on whether the PHY is in BroadR-Reach or IEEE mode
 643 * @phydev: target phy_device struct
 644 *
 645 * Description: Reads the PHY's abilities and populates phydev->supported
 646 * accordingly. The register to read the abilities from is determined by
 647 * the brr mode setting of the PHY as read from the device tree.
 648 * Note that the LRE and IEEE sets of abilities are disjunct, in other words,
 649 * not only the link modes differ, but also the auto-negotiation and
 650 * master-slave setup is controlled differently.
 651 *
 652 * Returns: 0 on success, < 0 on failure
 653 */
 654static int bcm5481x_read_abilities(struct phy_device *phydev)
 655{
 656	struct device_node *np = phydev->mdio.dev.of_node;
 657	struct bcm54xx_phy_priv *priv = phydev->priv;
 658	int i, val, err;
 659
 660	for (i = 0; i < ARRAY_SIZE(bcm54811_linkmodes); i++)
 661		linkmode_clear_bit(bcm54811_linkmodes[i], phydev->supported);
 662
 663	priv->brr_mode = of_property_read_bool(np, "brr-mode");
 664
 665	/* Set BroadR-Reach mode as configured in the DT. */
 666	err = bcm5481x_set_brrmode(phydev, priv->brr_mode);
 667	if (err)
 668		return err;
 669
 670	if (priv->brr_mode) {
 671		linkmode_set_bit_array(phy_basic_ports_array,
 672				       ARRAY_SIZE(phy_basic_ports_array),
 673				       phydev->supported);
 674
 675		val = phy_read(phydev, MII_BCM54XX_LRESR);
 676		if (val < 0)
 677			return val;
 678
 679		linkmode_mod_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
 680				 phydev->supported,
 681				 val & LRESR_LDSABILITY);
 682		linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT,
 683				 phydev->supported,
 684				 val & LRESR_100_1PAIR);
 685		linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1BRR_Full_BIT,
 686				 phydev->supported,
 687				 val & LRESR_10_1PAIR);
 688		return 0;
 689	}
 690
 691	return genphy_read_abilities(phydev);
 692}
 693
 694static int bcm5481x_config_delay_swap(struct phy_device *phydev)
 695{
 696	struct device_node *np = phydev->mdio.dev.of_node;
 697
 698	/* Set up the delay. */
 699	bcm54xx_config_clock_delay(phydev);
 700
 701	if (of_property_read_bool(np, "enet-phy-lane-swap")) {
 702		/* Lane Swap - Undocumented register...magic! */
 703		int ret = bcm_phy_write_exp(phydev,
 704					    MII_BCM54XX_EXP_SEL_ER + 0x9,
 705					    0x11B);
 706		if (ret < 0)
 707			return ret;
 708	}
 709
 710	return 0;
 711}
 712
 713static int bcm5481_config_aneg(struct phy_device *phydev)
 714{
 715	struct bcm54xx_phy_priv *priv = phydev->priv;
 716	int ret;
 717
 718	/* Aneg firstly. */
 719	if (priv->brr_mode)
 720		ret = bcm_config_lre_aneg(phydev, false);
 721	else
 722		ret = genphy_config_aneg(phydev);
 723
 724	if (ret)
 725		return ret;
 726
 727	/* Then we can set up the delay and swap. */
 728	return bcm5481x_config_delay_swap(phydev);
 729}
 730
 731static int bcm54811_config_aneg(struct phy_device *phydev)
 732{
 733	struct bcm54xx_phy_priv *priv = phydev->priv;
 734	int ret;
 735
 736	/* Aneg firstly. */
 737	if (priv->brr_mode) {
 738		/* BCM54811 is only capable of autonegotiation in IEEE mode */
 739		phydev->autoneg = 0;
 740		ret = bcm_config_lre_aneg(phydev, false);
 741	} else {
 742		ret = genphy_config_aneg(phydev);
 743	}
 744
 745	if (ret)
 746		return ret;
 747
 748	/* Then we can set up the delay and swap. */
 749	return bcm5481x_config_delay_swap(phydev);
 750}
 751
 752struct bcm54616s_phy_priv {
 753	bool mode_1000bx_en;
 754};
 755
 756static int bcm54616s_probe(struct phy_device *phydev)
 757{
 758	struct bcm54616s_phy_priv *priv;
 759	int val;
 760
 761	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
 762	if (!priv)
 763		return -ENOMEM;
 764
 765	phydev->priv = priv;
 766
 767	val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_MODE);
 768	if (val < 0)
 769		return val;
 770
 771	/* The PHY is strapped in RGMII-fiber mode when INTERF_SEL[1:0]
 772	 * is 01b, and the link between PHY and its link partner can be
 773	 * either 1000Base-X or 100Base-FX.
 774	 * RGMII-1000Base-X is properly supported, but RGMII-100Base-FX
 775	 * support is still missing as of now.
 776	 */
 777	if ((val & BCM54XX_SHD_INTF_SEL_MASK) == BCM54XX_SHD_INTF_SEL_RGMII) {
 778		val = bcm_phy_read_shadow(phydev, BCM54616S_SHD_100FX_CTRL);
 779		if (val < 0)
 780			return val;
 781
 782		/* Bit 0 of the SerDes 100-FX Control register, when set
 783		 * to 1, sets the MII/RGMII -> 100BASE-FX configuration.
 784		 * When this bit is set to 0, it sets the GMII/RGMII ->
 785		 * 1000BASE-X configuration.
 786		 */
 787		if (!(val & BCM54616S_100FX_MODE))
 788			priv->mode_1000bx_en = true;
 789
 790		phydev->port = PORT_FIBRE;
 791	}
 792
 793	return 0;
 794}
 795
 796static int bcm54616s_config_aneg(struct phy_device *phydev)
 797{
 798	struct bcm54616s_phy_priv *priv = phydev->priv;
 799	int ret;
 800
 801	/* Aneg firstly. */
 802	if (priv->mode_1000bx_en)
 803		ret = genphy_c37_config_aneg(phydev);
 804	else
 805		ret = genphy_config_aneg(phydev);
 806
 807	/* Then we can set up the delay. */
 808	bcm54xx_config_clock_delay(phydev);
 809
 810	return ret;
 811}
 812
 813static int bcm54616s_read_status(struct phy_device *phydev)
 814{
 815	struct bcm54616s_phy_priv *priv = phydev->priv;
 816	bool changed;
 817	int err;
 818
 819	if (priv->mode_1000bx_en)
 820		err = genphy_c37_read_status(phydev, &changed);
 821	else
 822		err = genphy_read_status(phydev);
 823
 824	return err;
 825}
 826
 827static int brcm_fet_config_init(struct phy_device *phydev)
 828{
 829	int reg, err, err2, brcmtest;
 830
 831	/* Reset the PHY to bring it to a known state. */
 832	err = phy_write(phydev, MII_BMCR, BMCR_RESET);
 833	if (err < 0)
 834		return err;
 835
 836	/* The datasheet indicates the PHY needs up to 1us to complete a reset,
 837	 * build some slack here.
 838	 */
 839	usleep_range(1000, 2000);
 840
 841	/* The PHY requires 65 MDC clock cycles to complete a write operation
 842	 * and turnaround the line properly.
 843	 *
 844	 * We ignore -EIO here as the MDIO controller (e.g.: mdio-bcm-unimac)
 845	 * may flag the lack of turn-around as a read failure. This is
 846	 * particularly true with this combination since the MDIO controller
 847	 * only used 64 MDC cycles. This is not a critical failure in this
 848	 * specific case and it has no functional impact otherwise, so we let
 849	 * that one go through. If there is a genuine bus error, the next read
 850	 * of MII_BRCM_FET_INTREG will error out.
 851	 */
 852	err = phy_read(phydev, MII_BMCR);
 853	if (err < 0 && err != -EIO)
 854		return err;
 855
 856	/* Read to clear status bits */
 857	reg = phy_read(phydev, MII_BRCM_FET_INTREG);
 858	if (reg < 0)
 859		return reg;
 860
 861	/* Unmask events we are interested in and mask interrupts globally. */
 862	if (phydev->phy_id == PHY_ID_BCM5221)
 863		reg = MII_BRCM_FET_IR_ENABLE |
 864		      MII_BRCM_FET_IR_MASK;
 865	else
 866		reg = MII_BRCM_FET_IR_DUPLEX_EN |
 867		      MII_BRCM_FET_IR_SPEED_EN |
 868		      MII_BRCM_FET_IR_LINK_EN |
 869		      MII_BRCM_FET_IR_ENABLE |
 870		      MII_BRCM_FET_IR_MASK;
 871
 872	err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
 873	if (err < 0)
 874		return err;
 875
 876	/* Enable shadow register access */
 877	brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST);
 878	if (brcmtest < 0)
 879		return brcmtest;
 880
 881	reg = brcmtest | MII_BRCM_FET_BT_SRE;
 882
 883	phy_lock_mdio_bus(phydev);
 884
 885	err = __phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg);
 886	if (err < 0) {
 887		phy_unlock_mdio_bus(phydev);
 888		return err;
 
 
 
 
 
 
 889	}
 890
 891	if (phydev->phy_id != PHY_ID_BCM5221) {
 892		/* Set the LED mode */
 893		reg = __phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4);
 894		if (reg < 0) {
 895			err = reg;
 896			goto done;
 897		}
 898
 899		err = __phy_modify(phydev, MII_BRCM_FET_SHDW_AUXMODE4,
 900				   MII_BRCM_FET_SHDW_AM4_LED_MASK,
 901				   MII_BRCM_FET_SHDW_AM4_LED_MODE1);
 902		if (err < 0)
 903			goto done;
 904
 905		/* Enable auto MDIX */
 906		err = __phy_set_bits(phydev, MII_BRCM_FET_SHDW_MISCCTRL,
 907				     MII_BRCM_FET_SHDW_MC_FAME);
 908		if (err < 0)
 909			goto done;
 910	}
 911
 912	if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) {
 913		/* Enable auto power down */
 914		err = __phy_set_bits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2,
 915				     MII_BRCM_FET_SHDW_AS2_APDE);
 916	}
 917
 918done:
 919	/* Disable shadow register access */
 920	err2 = __phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest);
 921	if (!err)
 922		err = err2;
 923
 924	phy_unlock_mdio_bus(phydev);
 925
 926	return err;
 927}
 928
 929static int brcm_fet_ack_interrupt(struct phy_device *phydev)
 930{
 931	int reg;
 932
 933	/* Clear pending interrupts.  */
 934	reg = phy_read(phydev, MII_BRCM_FET_INTREG);
 935	if (reg < 0)
 936		return reg;
 937
 938	return 0;
 939}
 940
 941static int brcm_fet_config_intr(struct phy_device *phydev)
 942{
 943	int reg, err;
 944
 945	reg = phy_read(phydev, MII_BRCM_FET_INTREG);
 946	if (reg < 0)
 947		return reg;
 948
 949	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
 950		err = brcm_fet_ack_interrupt(phydev);
 951		if (err)
 952			return err;
 953
 954		reg &= ~MII_BRCM_FET_IR_MASK;
 955		err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
 956	} else {
 957		reg |= MII_BRCM_FET_IR_MASK;
 958		err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
 959		if (err)
 960			return err;
 961
 962		err = brcm_fet_ack_interrupt(phydev);
 963	}
 964
 965	return err;
 966}
 967
 968static irqreturn_t brcm_fet_handle_interrupt(struct phy_device *phydev)
 969{
 970	int irq_status;
 971
 972	irq_status = phy_read(phydev, MII_BRCM_FET_INTREG);
 973	if (irq_status < 0) {
 974		phy_error(phydev);
 975		return IRQ_NONE;
 976	}
 977
 978	if (irq_status == 0)
 979		return IRQ_NONE;
 980
 981	phy_trigger_machine(phydev);
 982
 983	return IRQ_HANDLED;
 984}
 985
 986static int brcm_fet_suspend(struct phy_device *phydev)
 987{
 988	int reg, err, err2, brcmtest;
 989
 990	/* We cannot use a read/modify/write here otherwise the PHY continues
 991	 * to drive LEDs which defeats the purpose of low power mode.
 992	 */
 993	err = phy_write(phydev, MII_BMCR, BMCR_PDOWN);
 994	if (err < 0)
 995		return err;
 996
 997	/* Enable shadow register access */
 998	brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST);
 999	if (brcmtest < 0)
1000		return brcmtest;
1001
1002	reg = brcmtest | MII_BRCM_FET_BT_SRE;
1003
1004	phy_lock_mdio_bus(phydev);
1005
1006	err = __phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg);
1007	if (err < 0) {
1008		phy_unlock_mdio_bus(phydev);
1009		return err;
1010	}
1011
1012	if (phydev->phy_id == PHY_ID_BCM5221)
1013		/* Force Low Power Mode with clock enabled */
1014		reg = BCM5221_SHDW_AM4_EN_CLK_LPM | BCM5221_SHDW_AM4_FORCE_LPM;
1015	else
1016		/* Set standby mode */
1017		reg = MII_BRCM_FET_SHDW_AM4_STANDBY;
1018
1019	err = __phy_set_bits(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg);
1020
1021	/* Disable shadow register access */
1022	err2 = __phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest);
1023	if (!err)
1024		err = err2;
1025
1026	phy_unlock_mdio_bus(phydev);
1027
 
1028	return err;
1029}
1030
1031static int bcm5221_config_aneg(struct phy_device *phydev)
1032{
1033	int ret, val;
1034
1035	ret = genphy_config_aneg(phydev);
1036	if (ret)
1037		return ret;
1038
1039	switch (phydev->mdix_ctrl) {
1040	case ETH_TP_MDI:
1041		val = BCM5221_AEGSR_MDIX_DIS;
1042		break;
1043	case ETH_TP_MDI_X:
1044		val = BCM5221_AEGSR_MDIX_DIS | BCM5221_AEGSR_MDIX_MAN_SWAP;
1045		break;
1046	case ETH_TP_MDI_AUTO:
1047		val = 0;
1048		break;
1049	default:
1050		return 0;
1051	}
1052
1053	return phy_modify(phydev, BCM5221_AEGSR, BCM5221_AEGSR_MDIX_MAN_SWAP |
1054						 BCM5221_AEGSR_MDIX_DIS,
1055						 val);
1056}
1057
1058static int bcm5221_read_status(struct phy_device *phydev)
1059{
1060	int ret;
1061
1062	/* Read MDIX status */
1063	ret = phy_read(phydev, BCM5221_AEGSR);
1064	if (ret < 0)
1065		return ret;
1066
1067	if (ret & BCM5221_AEGSR_MDIX_DIS) {
1068		if (ret & BCM5221_AEGSR_MDIX_MAN_SWAP)
1069			phydev->mdix_ctrl = ETH_TP_MDI_X;
1070		else
1071			phydev->mdix_ctrl = ETH_TP_MDI;
1072	} else {
1073		phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
1074	}
1075
1076	if (ret & BCM5221_AEGSR_MDIX_STATUS)
1077		phydev->mdix = ETH_TP_MDI_X;
1078	else
1079		phydev->mdix = ETH_TP_MDI;
1080
1081	return genphy_read_status(phydev);
1082}
1083
1084static void bcm54xx_phy_get_wol(struct phy_device *phydev,
1085				struct ethtool_wolinfo *wol)
1086{
1087	/* We cannot wake-up if we do not have a dedicated PHY interrupt line
1088	 * or an out of band GPIO descriptor for wake-up. Zeroing
1089	 * wol->supported allows the caller (MAC driver) to play through and
1090	 * offer its own Wake-on-LAN scheme if available.
1091	 */
1092	if (!bcm54xx_phy_can_wakeup(phydev)) {
1093		wol->supported = 0;
1094		return;
1095	}
1096
1097	bcm_phy_get_wol(phydev, wol);
1098}
1099
1100static int bcm54xx_phy_set_wol(struct phy_device *phydev,
1101			       struct ethtool_wolinfo *wol)
1102{
1103	int ret;
1104
1105	/* We cannot wake-up if we do not have a dedicated PHY interrupt line
1106	 * or an out of band GPIO descriptor for wake-up. Returning -EOPNOTSUPP
1107	 * allows the caller (MAC driver) to play through and offer its own
1108	 * Wake-on-LAN scheme if available.
1109	 */
1110	if (!bcm54xx_phy_can_wakeup(phydev))
1111		return -EOPNOTSUPP;
1112
1113	ret = bcm_phy_set_wol(phydev, wol);
1114	if (ret < 0)
1115		return ret;
1116
1117	return 0;
1118}
1119
1120static int bcm54xx_phy_probe(struct phy_device *phydev)
1121{
1122	struct bcm54xx_phy_priv *priv;
1123	struct gpio_desc *wakeup_gpio;
1124	int ret = 0;
1125
1126	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
1127	if (!priv)
1128		return -ENOMEM;
1129
1130	priv->wake_irq = -ENXIO;
1131
1132	phydev->priv = priv;
1133
1134	priv->stats = devm_kcalloc(&phydev->mdio.dev,
1135				   bcm_phy_get_sset_count(phydev), sizeof(u64),
1136				   GFP_KERNEL);
1137	if (!priv->stats)
1138		return -ENOMEM;
1139
1140	priv->ptp = bcm_ptp_probe(phydev);
1141	if (IS_ERR(priv->ptp))
1142		return PTR_ERR(priv->ptp);
1143
1144	/* We cannot utilize the _optional variant here since we want to know
1145	 * whether the GPIO descriptor exists or not to advertise Wake-on-LAN
1146	 * support or not.
1147	 */
1148	wakeup_gpio = devm_gpiod_get(&phydev->mdio.dev, "wakeup", GPIOD_IN);
1149	if (PTR_ERR(wakeup_gpio) == -EPROBE_DEFER)
1150		return PTR_ERR(wakeup_gpio);
1151
1152	if (!IS_ERR(wakeup_gpio)) {
1153		priv->wake_irq = gpiod_to_irq(wakeup_gpio);
1154
1155		/* Dummy interrupt handler which is not enabled but is provided
1156		 * in order for the interrupt descriptor to be fully set-up.
1157		 */
1158		ret = devm_request_irq(&phydev->mdio.dev, priv->wake_irq,
1159				       bcm_phy_wol_isr,
1160				       IRQF_TRIGGER_LOW | IRQF_NO_AUTOEN,
1161				       dev_name(&phydev->mdio.dev), phydev);
1162		if (ret)
1163			return ret;
1164	}
1165
1166	/* If we do not have a main interrupt or a side-band wake-up interrupt,
1167	 * then the device cannot be marked as wake-up capable.
1168	 */
1169	if (!bcm54xx_phy_can_wakeup(phydev))
1170		return 0;
1171
1172	return device_init_wakeup(&phydev->mdio.dev, true);
1173}
1174
1175static void bcm54xx_get_stats(struct phy_device *phydev,
1176			      struct ethtool_stats *stats, u64 *data)
1177{
1178	struct bcm54xx_phy_priv *priv = phydev->priv;
1179
1180	bcm_phy_get_stats(phydev, priv->stats, stats, data);
1181}
1182
1183static void bcm54xx_link_change_notify(struct phy_device *phydev)
1184{
1185	u16 mask = MII_BCM54XX_EXP_EXP08_EARLY_DAC_WAKE |
1186		   MII_BCM54XX_EXP_EXP08_FORCE_DAC_WAKE;
1187	int ret;
1188
1189	if (phydev->state != PHY_RUNNING)
1190		return;
1191
1192	/* Don't change the DAC wake settings if auto power down
1193	 * is not requested.
1194	 */
1195	if (!(phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
1196		return;
1197
1198	ret = bcm_phy_read_exp(phydev, MII_BCM54XX_EXP_EXP08);
1199	if (ret < 0)
1200		return;
1201
1202	/* Enable/disable 10BaseT auto and forced early DAC wake depending
1203	 * on the negotiated speed, those settings should only be done
1204	 * for 10Mbits/sec.
1205	 */
1206	if (phydev->speed == SPEED_10)
1207		ret |= mask;
1208	else
1209		ret &= ~mask;
1210	bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP08, ret);
1211}
1212
1213static int lre_read_master_slave(struct phy_device *phydev)
1214{
1215	int cfg = MASTER_SLAVE_CFG_UNKNOWN, state;
1216	int val;
1217
1218	/* In BroadR-Reach mode we are always capable of master-slave
1219	 *  and there is no preferred master or slave configuration
1220	 */
1221	phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
1222	phydev->master_slave_state = MASTER_SLAVE_STATE_UNKNOWN;
1223
1224	val = phy_read(phydev, MII_BCM54XX_LRECR);
1225	if (val < 0)
1226		return val;
1227
1228	if ((val & LRECR_LDSEN) == 0) {
1229		if (val & LRECR_MASTER)
1230			cfg = MASTER_SLAVE_CFG_MASTER_FORCE;
1231		else
1232			cfg = MASTER_SLAVE_CFG_SLAVE_FORCE;
1233	}
1234
1235	val = phy_read(phydev, MII_BCM54XX_LRELDSE);
1236	if (val < 0)
1237		return val;
1238
1239	if (val & LDSE_MASTER)
1240		state = MASTER_SLAVE_STATE_MASTER;
1241	else
1242		state = MASTER_SLAVE_STATE_SLAVE;
1243
1244	phydev->master_slave_get = cfg;
1245	phydev->master_slave_state = state;
1246
1247	return 0;
1248}
1249
1250/* Read LDS Link Partner Ability in BroadR-Reach mode */
1251static int lre_read_lpa(struct phy_device *phydev)
1252{
1253	int i, lrelpa;
1254
1255	if (phydev->autoneg != AUTONEG_ENABLE) {
1256		if (!phydev->autoneg_complete) {
1257			/* aneg not yet done, reset all relevant bits */
1258			for (i = 0; i < ARRAY_SIZE(lds_br_bits); i++)
1259				linkmode_clear_bit(lds_br_bits[i],
1260						   phydev->lp_advertising);
1261
1262			return 0;
1263		}
1264
1265		/* Long-Distance Signaling Link Partner Ability */
1266		lrelpa = phy_read(phydev, MII_BCM54XX_LRELPA);
1267		if (lrelpa < 0)
1268			return lrelpa;
1269
1270		linkmode_mod_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
1271				 phydev->lp_advertising,
1272				 lrelpa & LRELPA_PAUSE_ASYM);
1273		linkmode_mod_bit(ETHTOOL_LINK_MODE_Pause_BIT,
1274				 phydev->lp_advertising,
1275				 lrelpa & LRELPA_PAUSE);
1276		linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT,
1277				 phydev->lp_advertising,
1278				 lrelpa & LRELPA_100_1PAIR);
1279		linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1BRR_Full_BIT,
1280				 phydev->lp_advertising,
1281				 lrelpa & LRELPA_10_1PAIR);
1282	} else {
1283		linkmode_zero(phydev->lp_advertising);
1284	}
1285
1286	return 0;
1287}
1288
1289static int lre_read_status_fixed(struct phy_device *phydev)
1290{
1291	int lrecr = phy_read(phydev, MII_BCM54XX_LRECR);
1292
1293	if (lrecr < 0)
1294		return lrecr;
1295
1296	phydev->duplex = DUPLEX_FULL;
1297
1298	if (lrecr & LRECR_SPEED100)
1299		phydev->speed = SPEED_100;
1300	else
1301		phydev->speed = SPEED_10;
1302
1303	return 0;
1304}
1305
1306/**
1307 * lre_update_link - update link status in @phydev
1308 * @phydev: target phy_device struct
1309 * Return:  0 on success, < 0 on error
1310 *
1311 * Description: Update the value in phydev->link to reflect the
1312 *   current link value.  In order to do this, we need to read
1313 *   the status register twice, keeping the second value.
1314 *   This is a genphy_update_link modified to work on LRE registers
1315 *   of BroadR-Reach PHY
1316 */
1317static int lre_update_link(struct phy_device *phydev)
1318{
1319	int status = 0, lrecr;
1320
1321	lrecr = phy_read(phydev, MII_BCM54XX_LRECR);
1322	if (lrecr < 0)
1323		return lrecr;
1324
1325	/* Autoneg is being started, therefore disregard BMSR value and
1326	 * report link as down.
1327	 */
1328	if (lrecr & BMCR_ANRESTART)
1329		goto done;
1330
1331	/* The link state is latched low so that momentary link
1332	 * drops can be detected. Do not double-read the status
1333	 * in polling mode to detect such short link drops except
1334	 * the link was already down.
1335	 */
1336	if (!phy_polling_mode(phydev) || !phydev->link) {
1337		status = phy_read(phydev, MII_BCM54XX_LRESR);
1338		if (status < 0)
1339			return status;
1340		else if (status & LRESR_LSTATUS)
1341			goto done;
1342	}
1343
1344	/* Read link and autonegotiation status */
1345	status = phy_read(phydev, MII_BCM54XX_LRESR);
1346	if (status < 0)
1347		return status;
1348done:
1349	phydev->link = status & LRESR_LSTATUS ? 1 : 0;
1350	phydev->autoneg_complete = status & LRESR_LDSCOMPLETE ? 1 : 0;
1351
1352	/* Consider the case that autoneg was started and "aneg complete"
1353	 * bit has been reset, but "link up" bit not yet.
1354	 */
1355	if (phydev->autoneg == AUTONEG_ENABLE && !phydev->autoneg_complete)
1356		phydev->link = 0;
1357
1358	return 0;
1359}
1360
1361/* Get the status in BroadRReach mode just like genphy_read_status does
1362*   in normal mode
1363*/
1364static int bcm54811_lre_read_status(struct phy_device *phydev)
1365{
1366	int err, old_link = phydev->link;
1367
1368	/* Update the link, but return if there was an error */
1369	err = lre_update_link(phydev);
1370	if (err)
1371		return err;
1372
1373	/* why bother the PHY if nothing can have changed */
1374	if (phydev->autoneg ==
1375		AUTONEG_ENABLE && old_link && phydev->link)
1376		return 0;
1377
1378	phydev->speed = SPEED_UNKNOWN;
1379	phydev->duplex = DUPLEX_UNKNOWN;
1380	phydev->pause = 0;
1381	phydev->asym_pause = 0;
1382
1383	err = lre_read_master_slave(phydev);
1384	if (err < 0)
1385		return err;
1386
1387	/* Read LDS Link Partner Ability */
1388	err = lre_read_lpa(phydev);
1389	if (err < 0)
1390		return err;
1391
1392	if (phydev->autoneg == AUTONEG_ENABLE && phydev->autoneg_complete)
1393		phy_resolve_aneg_linkmode(phydev);
1394	else if (phydev->autoneg == AUTONEG_DISABLE)
1395		err = lre_read_status_fixed(phydev);
1396
1397	return err;
1398}
1399
1400static int bcm54811_read_status(struct phy_device *phydev)
1401{
1402	struct bcm54xx_phy_priv *priv = phydev->priv;
1403
1404	if (priv->brr_mode)
1405		return  bcm54811_lre_read_status(phydev);
1406
1407	return genphy_read_status(phydev);
1408}
1409
1410static struct phy_driver broadcom_drivers[] = {
1411{
1412	.phy_id		= PHY_ID_BCM5411,
1413	.phy_id_mask	= 0xfffffff0,
1414	.name		= "Broadcom BCM5411",
1415	/* PHY_GBIT_FEATURES */
1416	.get_sset_count	= bcm_phy_get_sset_count,
1417	.get_strings	= bcm_phy_get_strings,
1418	.get_stats	= bcm54xx_get_stats,
1419	.probe		= bcm54xx_phy_probe,
1420	.config_init	= bcm54xx_config_init,
 
1421	.config_intr	= bcm_phy_config_intr,
1422	.handle_interrupt = bcm_phy_handle_interrupt,
1423	.link_change_notify	= bcm54xx_link_change_notify,
1424}, {
1425	.phy_id		= PHY_ID_BCM5421,
1426	.phy_id_mask	= 0xfffffff0,
1427	.name		= "Broadcom BCM5421",
1428	/* PHY_GBIT_FEATURES */
1429	.get_sset_count	= bcm_phy_get_sset_count,
1430	.get_strings	= bcm_phy_get_strings,
1431	.get_stats	= bcm54xx_get_stats,
1432	.probe		= bcm54xx_phy_probe,
1433	.config_init	= bcm54xx_config_init,
 
1434	.config_intr	= bcm_phy_config_intr,
1435	.handle_interrupt = bcm_phy_handle_interrupt,
1436	.link_change_notify	= bcm54xx_link_change_notify,
1437}, {
1438	.phy_id		= PHY_ID_BCM54210E,
1439	.phy_id_mask	= 0xfffffff0,
1440	.name		= "Broadcom BCM54210E",
1441	/* PHY_GBIT_FEATURES */
1442	.flags		= PHY_ALWAYS_CALL_SUSPEND,
1443	.get_sset_count	= bcm_phy_get_sset_count,
1444	.get_strings	= bcm_phy_get_strings,
1445	.get_stats	= bcm54xx_get_stats,
1446	.probe		= bcm54xx_phy_probe,
1447	.config_init	= bcm54xx_config_init,
 
1448	.config_intr	= bcm_phy_config_intr,
1449	.handle_interrupt = bcm_phy_handle_interrupt,
1450	.link_change_notify	= bcm54xx_link_change_notify,
1451	.suspend	= bcm54xx_suspend,
1452	.resume		= bcm54xx_resume,
1453	.get_wol	= bcm54xx_phy_get_wol,
1454	.set_wol	= bcm54xx_phy_set_wol,
1455	.led_brightness_set	= bcm_phy_led_brightness_set,
1456}, {
1457	.phy_id		= PHY_ID_BCM5461,
1458	.phy_id_mask	= 0xfffffff0,
1459	.name		= "Broadcom BCM5461",
1460	/* PHY_GBIT_FEATURES */
1461	.get_sset_count	= bcm_phy_get_sset_count,
1462	.get_strings	= bcm_phy_get_strings,
1463	.get_stats	= bcm54xx_get_stats,
1464	.probe		= bcm54xx_phy_probe,
1465	.config_init	= bcm54xx_config_init,
 
1466	.config_intr	= bcm_phy_config_intr,
1467	.handle_interrupt = bcm_phy_handle_interrupt,
1468	.link_change_notify	= bcm54xx_link_change_notify,
1469	.led_brightness_set	= bcm_phy_led_brightness_set,
1470}, {
1471	.phy_id		= PHY_ID_BCM54612E,
1472	.phy_id_mask	= 0xfffffff0,
1473	.name		= "Broadcom BCM54612E",
1474	/* PHY_GBIT_FEATURES */
1475	.get_sset_count	= bcm_phy_get_sset_count,
1476	.get_strings	= bcm_phy_get_strings,
1477	.get_stats	= bcm54xx_get_stats,
1478	.probe		= bcm54xx_phy_probe,
1479	.config_init	= bcm54xx_config_init,
 
1480	.config_intr	= bcm_phy_config_intr,
1481	.handle_interrupt = bcm_phy_handle_interrupt,
1482	.link_change_notify	= bcm54xx_link_change_notify,
1483	.led_brightness_set	= bcm_phy_led_brightness_set,
1484	.suspend	= bcm54xx_suspend,
1485	.resume		= bcm54xx_resume,
1486}, {
1487	.phy_id		= PHY_ID_BCM54616S,
1488	.phy_id_mask	= 0xfffffff0,
1489	.name		= "Broadcom BCM54616S",
1490	/* PHY_GBIT_FEATURES */
1491	.soft_reset     = genphy_soft_reset,
1492	.config_init	= bcm54xx_config_init,
1493	.config_aneg	= bcm54616s_config_aneg,
1494	.config_intr	= bcm_phy_config_intr,
1495	.handle_interrupt = bcm_phy_handle_interrupt,
1496	.read_status	= bcm54616s_read_status,
1497	.probe		= bcm54616s_probe,
1498	.link_change_notify	= bcm54xx_link_change_notify,
1499	.led_brightness_set	= bcm_phy_led_brightness_set,
1500}, {
1501	.phy_id		= PHY_ID_BCM5464,
1502	.phy_id_mask	= 0xfffffff0,
1503	.name		= "Broadcom BCM5464",
1504	/* PHY_GBIT_FEATURES */
1505	.get_sset_count	= bcm_phy_get_sset_count,
1506	.get_strings	= bcm_phy_get_strings,
1507	.get_stats	= bcm54xx_get_stats,
1508	.probe		= bcm54xx_phy_probe,
1509	.config_init	= bcm54xx_config_init,
 
1510	.config_intr	= bcm_phy_config_intr,
1511	.handle_interrupt = bcm_phy_handle_interrupt,
1512	.suspend	= genphy_suspend,
1513	.resume		= genphy_resume,
1514	.link_change_notify	= bcm54xx_link_change_notify,
1515	.led_brightness_set	= bcm_phy_led_brightness_set,
1516}, {
1517	.phy_id		= PHY_ID_BCM5481,
1518	.phy_id_mask	= 0xfffffff0,
1519	.name		= "Broadcom BCM5481",
1520	/* PHY_GBIT_FEATURES */
1521	.get_sset_count	= bcm_phy_get_sset_count,
1522	.get_strings	= bcm_phy_get_strings,
1523	.get_stats	= bcm54xx_get_stats,
1524	.probe		= bcm54xx_phy_probe,
1525	.config_init	= bcm54xx_config_init,
1526	.config_aneg	= bcm5481_config_aneg,
 
1527	.config_intr	= bcm_phy_config_intr,
1528	.handle_interrupt = bcm_phy_handle_interrupt,
1529	.link_change_notify	= bcm54xx_link_change_notify,
1530	.led_brightness_set	= bcm_phy_led_brightness_set,
1531}, {
1532	.phy_id         = PHY_ID_BCM54810,
1533	.phy_id_mask    = 0xfffffff0,
1534	.name           = "Broadcom BCM54810",
1535	/* PHY_GBIT_FEATURES */
1536	.get_sset_count	= bcm_phy_get_sset_count,
1537	.get_strings	= bcm_phy_get_strings,
1538	.get_stats	= bcm54xx_get_stats,
1539	.probe		= bcm54xx_phy_probe,
1540	.read_mmd	= bcm54810_read_mmd,
1541	.write_mmd	= bcm54810_write_mmd,
1542	.config_init    = bcm54xx_config_init,
1543	.config_aneg    = bcm5481_config_aneg,
 
1544	.config_intr    = bcm_phy_config_intr,
1545	.handle_interrupt = bcm_phy_handle_interrupt,
1546	.suspend	= bcm54xx_suspend,
1547	.resume		= bcm54xx_resume,
1548	.link_change_notify	= bcm54xx_link_change_notify,
1549	.led_brightness_set	= bcm_phy_led_brightness_set,
1550}, {
1551	.phy_id         = PHY_ID_BCM54811,
1552	.phy_id_mask    = 0xfffffff0,
1553	.name           = "Broadcom BCM54811",
1554	/* PHY_GBIT_FEATURES */
1555	.get_sset_count	= bcm_phy_get_sset_count,
1556	.get_strings	= bcm_phy_get_strings,
1557	.get_stats	= bcm54xx_get_stats,
1558	.probe		= bcm54xx_phy_probe,
1559	.config_init    = bcm54xx_config_init,
1560	.config_aneg    = bcm54811_config_aneg,
1561	.config_intr    = bcm_phy_config_intr,
1562	.handle_interrupt = bcm_phy_handle_interrupt,
1563	.read_status	= bcm54811_read_status,
1564	.get_features	= bcm5481x_read_abilities,
1565	.suspend	= bcm54xx_suspend,
1566	.resume		= bcm54xx_resume,
1567	.link_change_notify	= bcm54xx_link_change_notify,
1568	.led_brightness_set	= bcm_phy_led_brightness_set,
1569}, {
1570	.phy_id		= PHY_ID_BCM5482,
1571	.phy_id_mask	= 0xfffffff0,
1572	.name		= "Broadcom BCM5482",
1573	/* PHY_GBIT_FEATURES */
1574	.get_sset_count	= bcm_phy_get_sset_count,
1575	.get_strings	= bcm_phy_get_strings,
1576	.get_stats	= bcm54xx_get_stats,
1577	.probe		= bcm54xx_phy_probe,
1578	.config_init	= bcm54xx_config_init,
1579	.config_intr	= bcm_phy_config_intr,
1580	.handle_interrupt = bcm_phy_handle_interrupt,
1581	.link_change_notify	= bcm54xx_link_change_notify,
1582	.led_brightness_set	= bcm_phy_led_brightness_set,
1583}, {
1584	.phy_id		= PHY_ID_BCM50610,
1585	.phy_id_mask	= 0xfffffff0,
1586	.name		= "Broadcom BCM50610",
1587	/* PHY_GBIT_FEATURES */
1588	.get_sset_count	= bcm_phy_get_sset_count,
1589	.get_strings	= bcm_phy_get_strings,
1590	.get_stats	= bcm54xx_get_stats,
1591	.probe		= bcm54xx_phy_probe,
1592	.config_init	= bcm54xx_config_init,
 
1593	.config_intr	= bcm_phy_config_intr,
1594	.handle_interrupt = bcm_phy_handle_interrupt,
1595	.link_change_notify	= bcm54xx_link_change_notify,
1596	.suspend	= bcm54xx_suspend,
1597	.resume		= bcm54xx_resume,
1598	.led_brightness_set	= bcm_phy_led_brightness_set,
1599}, {
1600	.phy_id		= PHY_ID_BCM50610M,
1601	.phy_id_mask	= 0xfffffff0,
1602	.name		= "Broadcom BCM50610M",
1603	/* PHY_GBIT_FEATURES */
1604	.get_sset_count	= bcm_phy_get_sset_count,
1605	.get_strings	= bcm_phy_get_strings,
1606	.get_stats	= bcm54xx_get_stats,
1607	.probe		= bcm54xx_phy_probe,
1608	.config_init	= bcm54xx_config_init,
 
1609	.config_intr	= bcm_phy_config_intr,
1610	.handle_interrupt = bcm_phy_handle_interrupt,
1611	.link_change_notify	= bcm54xx_link_change_notify,
1612	.suspend	= bcm54xx_suspend,
1613	.resume		= bcm54xx_resume,
1614	.led_brightness_set	= bcm_phy_led_brightness_set,
1615}, {
1616	.phy_id		= PHY_ID_BCM57780,
1617	.phy_id_mask	= 0xfffffff0,
1618	.name		= "Broadcom BCM57780",
1619	/* PHY_GBIT_FEATURES */
1620	.get_sset_count	= bcm_phy_get_sset_count,
1621	.get_strings	= bcm_phy_get_strings,
1622	.get_stats	= bcm54xx_get_stats,
1623	.probe		= bcm54xx_phy_probe,
1624	.config_init	= bcm54xx_config_init,
 
1625	.config_intr	= bcm_phy_config_intr,
1626	.handle_interrupt = bcm_phy_handle_interrupt,
1627	.link_change_notify	= bcm54xx_link_change_notify,
1628	.led_brightness_set	= bcm_phy_led_brightness_set,
1629}, {
1630	.phy_id		= PHY_ID_BCMAC131,
1631	.phy_id_mask	= 0xfffffff0,
1632	.name		= "Broadcom BCMAC131",
1633	/* PHY_BASIC_FEATURES */
 
1634	.config_init	= brcm_fet_config_init,
 
1635	.config_intr	= brcm_fet_config_intr,
1636	.handle_interrupt = brcm_fet_handle_interrupt,
1637	.suspend	= brcm_fet_suspend,
1638	.resume		= brcm_fet_config_init,
1639}, {
1640	.phy_id		= PHY_ID_BCM5241,
1641	.phy_id_mask	= 0xfffffff0,
1642	.name		= "Broadcom BCM5241",
1643	/* PHY_BASIC_FEATURES */
 
1644	.config_init	= brcm_fet_config_init,
 
1645	.config_intr	= brcm_fet_config_intr,
1646	.handle_interrupt = brcm_fet_handle_interrupt,
1647	.suspend	= brcm_fet_suspend,
1648	.resume		= brcm_fet_config_init,
1649}, {
1650	.phy_id		= PHY_ID_BCM5221,
1651	.phy_id_mask	= 0xfffffff0,
1652	.name		= "Broadcom BCM5221",
1653	/* PHY_BASIC_FEATURES */
1654	.config_init	= brcm_fet_config_init,
1655	.config_intr	= brcm_fet_config_intr,
1656	.handle_interrupt = brcm_fet_handle_interrupt,
1657	.suspend	= brcm_fet_suspend,
1658	.resume		= brcm_fet_config_init,
1659	.config_aneg	= bcm5221_config_aneg,
1660	.read_status	= bcm5221_read_status,
1661}, {
1662	.phy_id		= PHY_ID_BCM5395,
1663	.phy_id_mask	= 0xfffffff0,
1664	.name		= "Broadcom BCM5395",
1665	.flags		= PHY_IS_INTERNAL,
1666	/* PHY_GBIT_FEATURES */
1667	.get_sset_count	= bcm_phy_get_sset_count,
1668	.get_strings	= bcm_phy_get_strings,
1669	.get_stats	= bcm54xx_get_stats,
1670	.probe		= bcm54xx_phy_probe,
1671	.link_change_notify	= bcm54xx_link_change_notify,
1672	.led_brightness_set	= bcm_phy_led_brightness_set,
1673}, {
1674	.phy_id		= PHY_ID_BCM53125,
1675	.phy_id_mask	= 0xfffffff0,
1676	.name		= "Broadcom BCM53125",
1677	.flags		= PHY_IS_INTERNAL,
1678	/* PHY_GBIT_FEATURES */
1679	.get_sset_count	= bcm_phy_get_sset_count,
1680	.get_strings	= bcm_phy_get_strings,
1681	.get_stats	= bcm54xx_get_stats,
1682	.probe		= bcm54xx_phy_probe,
1683	.config_init	= bcm54xx_config_init,
1684	.config_intr	= bcm_phy_config_intr,
1685	.handle_interrupt = bcm_phy_handle_interrupt,
1686	.link_change_notify	= bcm54xx_link_change_notify,
1687	.led_brightness_set	= bcm_phy_led_brightness_set,
1688}, {
1689	.phy_id		= PHY_ID_BCM53128,
1690	.phy_id_mask	= 0xfffffff0,
1691	.name		= "Broadcom BCM53128",
1692	.flags		= PHY_IS_INTERNAL,
1693	/* PHY_GBIT_FEATURES */
1694	.get_sset_count	= bcm_phy_get_sset_count,
1695	.get_strings	= bcm_phy_get_strings,
1696	.get_stats	= bcm54xx_get_stats,
1697	.probe		= bcm54xx_phy_probe,
1698	.config_init	= bcm54xx_config_init,
1699	.config_intr	= bcm_phy_config_intr,
1700	.handle_interrupt = bcm_phy_handle_interrupt,
1701	.link_change_notify	= bcm54xx_link_change_notify,
1702	.led_brightness_set	= bcm_phy_led_brightness_set,
1703}, {
1704	.phy_id         = PHY_ID_BCM89610,
1705	.phy_id_mask    = 0xfffffff0,
1706	.name           = "Broadcom BCM89610",
1707	/* PHY_GBIT_FEATURES */
1708	.get_sset_count	= bcm_phy_get_sset_count,
1709	.get_strings	= bcm_phy_get_strings,
1710	.get_stats	= bcm54xx_get_stats,
1711	.probe		= bcm54xx_phy_probe,
1712	.config_init    = bcm54xx_config_init,
 
1713	.config_intr    = bcm_phy_config_intr,
1714	.handle_interrupt = bcm_phy_handle_interrupt,
1715	.link_change_notify	= bcm54xx_link_change_notify,
1716} };
1717
1718module_phy_driver(broadcom_drivers);
1719
1720static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
1721	{ PHY_ID_BCM5411, 0xfffffff0 },
1722	{ PHY_ID_BCM5421, 0xfffffff0 },
1723	{ PHY_ID_BCM54210E, 0xfffffff0 },
1724	{ PHY_ID_BCM5461, 0xfffffff0 },
1725	{ PHY_ID_BCM54612E, 0xfffffff0 },
1726	{ PHY_ID_BCM54616S, 0xfffffff0 },
1727	{ PHY_ID_BCM5464, 0xfffffff0 },
1728	{ PHY_ID_BCM5481, 0xfffffff0 },
1729	{ PHY_ID_BCM54810, 0xfffffff0 },
1730	{ PHY_ID_BCM54811, 0xfffffff0 },
1731	{ PHY_ID_BCM5482, 0xfffffff0 },
1732	{ PHY_ID_BCM50610, 0xfffffff0 },
1733	{ PHY_ID_BCM50610M, 0xfffffff0 },
1734	{ PHY_ID_BCM57780, 0xfffffff0 },
1735	{ PHY_ID_BCMAC131, 0xfffffff0 },
1736	{ PHY_ID_BCM5221, 0xfffffff0 },
1737	{ PHY_ID_BCM5241, 0xfffffff0 },
1738	{ PHY_ID_BCM5395, 0xfffffff0 },
1739	{ PHY_ID_BCM53125, 0xfffffff0 },
1740	{ PHY_ID_BCM53128, 0xfffffff0 },
1741	{ PHY_ID_BCM89610, 0xfffffff0 },
1742	{ }
1743};
1744
1745MODULE_DEVICE_TABLE(mdio, broadcom_tbl);
v4.17
 
  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 "bcm-phy-lib.h"
 
 18#include <linux/module.h>
 19#include <linux/phy.h>
 
 20#include <linux/brcmphy.h>
 21#include <linux/of.h>
 
 
 
 22
 23#define BRCM_PHY_MODEL(phydev) \
 24	((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
 25
 26#define BRCM_PHY_REV(phydev) \
 27	((phydev)->drv->phy_id & ~((phydev)->drv->phy_id_mask))
 28
 29MODULE_DESCRIPTION("Broadcom PHY driver");
 30MODULE_AUTHOR("Maciej W. Rozycki");
 31MODULE_LICENSE("GPL");
 32
 33static int bcm54210e_config_init(struct phy_device *phydev)
 34{
 35	int val;
 
 
 
 
 36
 37	val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
 38	val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
 39	val |= MII_BCM54XX_AUXCTL_MISC_WREN;
 40	bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC, val);
 
 
 
 
 
 
 
 
 41
 42	val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
 43	val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
 44	bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
 
 
 
 
 
 45
 46	if (phydev->dev_flags & PHY_BRCM_EN_MASTER_MODE) {
 47		val = phy_read(phydev, MII_CTRL1000);
 48		val |= CTL1000_AS_MASTER | CTL1000_ENABLE_MASTER;
 49		phy_write(phydev, MII_CTRL1000, val);
 50	}
 51
 52	return 0;
 53}
 54
 55static int bcm54612e_config_init(struct phy_device *phydev)
 56{
 57	/* Clear TX internal delay unless requested. */
 58	if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
 59	    (phydev->interface != PHY_INTERFACE_MODE_RGMII_TXID)) {
 60		/* Disable TXD to GTXCLK clock delay (default set) */
 61		/* Bit 9 is the only field in shadow register 00011 */
 62		bcm_phy_write_shadow(phydev, 0x03, 0);
 63	}
 64
 65	/* Clear RX internal delay unless requested. */
 66	if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
 67	    (phydev->interface != PHY_INTERFACE_MODE_RGMII_RXID)) {
 68		u16 reg;
 69
 70		reg = bcm54xx_auxctl_read(phydev,
 71					  MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
 72		/* Disable RXD to RXC delay (default set) */
 73		reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
 74		/* Clear shadow selector field */
 75		reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MASK;
 76		bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
 77				     MII_BCM54XX_AUXCTL_MISC_WREN | reg);
 78	}
 79
 80	return 0;
 81}
 82
 83static int bcm5481x_config(struct phy_device *phydev)
 84{
 85	int rc, val;
 86
 87	/* handling PHY's internal RX clock delay */
 88	val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
 89	val |= MII_BCM54XX_AUXCTL_MISC_WREN;
 90	if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||
 91	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
 92		/* Disable RGMII RXC-RXD skew */
 93		val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
 94	}
 95	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
 96	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
 97		/* Enable RGMII RXC-RXD skew */
 98		val |= MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
 99	}
100	rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
101				  val);
102	if (rc < 0)
103		return rc;
104
105	/* handling PHY's internal TX clock delay */
106	val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
107	if (phydev->interface == PHY_INTERFACE_MODE_RGMII ||
108	    phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
109		/* Disable internal TX clock delay */
110		val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
111	}
112	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
113	    phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
114		/* Enable internal TX clock delay */
115		val |= BCM54810_SHD_CLK_CTL_GTXCLK_EN;
116	}
117	rc = bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
118	if (rc < 0)
119		return rc;
120
121	return 0;
122}
123
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
124/* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
125static int bcm50610_a0_workaround(struct phy_device *phydev)
126{
127	int err;
128
129	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH0,
130				MII_BCM54XX_EXP_AADJ1CH0_SWP_ABCD_OEN |
131				MII_BCM54XX_EXP_AADJ1CH0_SWSEL_THPF);
132	if (err < 0)
133		return err;
134
135	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_AADJ1CH3,
136				MII_BCM54XX_EXP_AADJ1CH3_ADCCKADJ);
137	if (err < 0)
138		return err;
139
140	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75,
141				MII_BCM54XX_EXP_EXP75_VDACCTRL);
142	if (err < 0)
143		return err;
144
145	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP96,
146				MII_BCM54XX_EXP_EXP96_MYST);
147	if (err < 0)
148		return err;
149
150	err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP97,
151				MII_BCM54XX_EXP_EXP97_MYST);
152
153	return err;
154}
155
156static int bcm54xx_phydsp_config(struct phy_device *phydev)
157{
158	int err, err2;
159
160	/* Enable the SMDSP clock */
161	err = bcm54xx_auxctl_write(phydev,
162				   MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
163				   MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA |
164				   MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
165	if (err < 0)
166		return err;
167
168	if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
169	    BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) {
170		/* Clear bit 9 to fix a phy interop issue. */
171		err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP08,
172					MII_BCM54XX_EXP_EXP08_RJCT_2MHZ);
173		if (err < 0)
174			goto error;
175
176		if (phydev->drv->phy_id == PHY_ID_BCM50610) {
177			err = bcm50610_a0_workaround(phydev);
178			if (err < 0)
179				goto error;
180		}
181	}
182
183	if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM57780) {
184		int val;
185
186		val = bcm_phy_read_exp(phydev, MII_BCM54XX_EXP_EXP75);
187		if (val < 0)
188			goto error;
189
190		val |= MII_BCM54XX_EXP_EXP75_CM_OSC;
191		err = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_EXP75, val);
192	}
193
194error:
195	/* Disable the SMDSP clock */
196	err2 = bcm54xx_auxctl_write(phydev,
197				    MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL,
198				    MII_BCM54XX_AUXCTL_ACTL_TX_6DB);
199
200	/* Return the first error reported. */
201	return err ? err : err2;
202}
203
204static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev)
205{
206	u32 orig;
207	int val;
208	bool clk125en = true;
209
210	/* Abort if we are using an untested phy. */
211	if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 &&
212	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 &&
213	    BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M)
 
 
 
214		return;
215
216	val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_SCR3);
217	if (val < 0)
218		return;
219
220	orig = val;
221
222	if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
223	     BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
224	    BRCM_PHY_REV(phydev) >= 0x3) {
225		/*
226		 * Here, bit 0 _disables_ CLK125 when set.
227		 * This bit is set by default.
228		 */
229		clk125en = false;
230	} else {
231		if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) {
232			/* Here, bit 0 _enables_ CLK125 when set */
233			val &= ~BCM54XX_SHD_SCR3_DEF_CLK125;
 
 
234			clk125en = false;
235		}
236	}
237
238	if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
239		val &= ~BCM54XX_SHD_SCR3_DLLAPD_DIS;
240	else
241		val |= BCM54XX_SHD_SCR3_DLLAPD_DIS;
242
243	if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY)
244		val |= BCM54XX_SHD_SCR3_TRDDAPD;
 
 
 
 
 
 
245
246	if (orig != val)
247		bcm_phy_write_shadow(phydev, BCM54XX_SHD_SCR3, val);
248
249	val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_APD);
250	if (val < 0)
251		return;
252
253	orig = val;
254
255	if (!clk125en || (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
256		val |= BCM54XX_SHD_APD_EN;
257	else
258		val &= ~BCM54XX_SHD_APD_EN;
259
260	if (orig != val)
261		bcm_phy_write_shadow(phydev, BCM54XX_SHD_APD, val);
262}
263
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
264static int bcm54xx_config_init(struct phy_device *phydev)
265{
266	int reg, err, val;
267
268	reg = phy_read(phydev, MII_BCM54XX_ECR);
269	if (reg < 0)
270		return reg;
271
272	/* Mask interrupts globally.  */
273	reg |= MII_BCM54XX_ECR_IM;
274	err = phy_write(phydev, MII_BCM54XX_ECR, reg);
275	if (err < 0)
276		return err;
277
278	/* Unmask events we are interested in.  */
279	reg = ~(MII_BCM54XX_INT_DUPLEX |
280		MII_BCM54XX_INT_SPEED |
281		MII_BCM54XX_INT_LINK);
282	err = phy_write(phydev, MII_BCM54XX_IMR, reg);
283	if (err < 0)
284		return err;
285
286	if ((BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610 ||
287	     BRCM_PHY_MODEL(phydev) == PHY_ID_BCM50610M) &&
288	    (phydev->dev_flags & PHY_BRCM_CLEAR_RGMII_MODE))
289		bcm_phy_write_shadow(phydev, BCM54XX_SHD_RGMII_MODE, 0);
290
291	if ((phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) ||
292	    (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) ||
293	    (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
294		bcm54xx_adjust_rxrefclk(phydev);
295
296	if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E) {
 
 
 
 
 
297		err = bcm54210e_config_init(phydev);
298		if (err)
299			return err;
300	} else if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54612E) {
301		err = bcm54612e_config_init(phydev);
302		if (err)
303			return err;
304	} else if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) {
 
 
305		/* For BCM54810, we need to disable BroadR-Reach function */
306		val = bcm_phy_read_exp(phydev,
307				       BCM54810_EXP_BROADREACH_LRE_MISC_CTL);
308		val &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN;
309		err = bcm_phy_write_exp(phydev,
310					BCM54810_EXP_BROADREACH_LRE_MISC_CTL,
311					val);
312		if (err < 0)
313			return err;
 
 
314	}
 
 
315
316	bcm54xx_phydsp_config(phydev);
317
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
318	return 0;
319}
320
321static int bcm5482_config_init(struct phy_device *phydev)
322{
323	int err, reg;
324
325	err = bcm54xx_config_init(phydev);
 
326
327	if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
328		/*
329		 * Enable secondary SerDes and its use as an LED source
330		 */
331		reg = bcm_phy_read_shadow(phydev, BCM5482_SHD_SSD);
332		bcm_phy_write_shadow(phydev, BCM5482_SHD_SSD,
333				     reg |
334				     BCM5482_SHD_SSD_LEDM |
335				     BCM5482_SHD_SSD_EN);
336
337		/*
338		 * Enable SGMII slave mode and auto-detection
339		 */
340		reg = BCM5482_SSD_SGMII_SLAVE | MII_BCM54XX_EXP_SEL_SSD;
341		err = bcm_phy_read_exp(phydev, reg);
342		if (err < 0)
343			return err;
344		err = bcm_phy_write_exp(phydev, reg, err |
345					BCM5482_SSD_SGMII_SLAVE_EN |
346					BCM5482_SSD_SGMII_SLAVE_AD);
347		if (err < 0)
348			return err;
349
350		/*
351		 * Disable secondary SerDes powerdown
352		 */
353		reg = BCM5482_SSD_1000BX_CTL | MII_BCM54XX_EXP_SEL_SSD;
354		err = bcm_phy_read_exp(phydev, reg);
355		if (err < 0)
356			return err;
357		err = bcm_phy_write_exp(phydev, reg,
358					err & ~BCM5482_SSD_1000BX_CTL_PWRDOWN);
359		if (err < 0)
360			return err;
361
362		/*
363		 * Select 1000BASE-X register set (primary SerDes)
364		 */
365		reg = bcm_phy_read_shadow(phydev, BCM5482_SHD_MODE);
366		bcm_phy_write_shadow(phydev, BCM5482_SHD_MODE,
367				     reg | BCM5482_SHD_MODE_1000BX);
368
369		/*
370		 * LED1=ACTIVITYLED, LED3=LINKSPD[2]
371		 * (Use LED1 as secondary SerDes ACTIVITY LED)
372		 */
373		bcm_phy_write_shadow(phydev, BCM5482_SHD_LEDS1,
374			BCM5482_SHD_LEDS1_LED1(BCM_LED_SRC_ACTIVITYLED) |
375			BCM5482_SHD_LEDS1_LED3(BCM_LED_SRC_LINKSPD2));
376
377		/*
378		 * Auto-negotiation doesn't seem to work quite right
379		 * in this mode, so we disable it and force it to the
380		 * right speed/duplex setting.  Only 'link status'
381		 * is important.
382		 */
383		phydev->autoneg = AUTONEG_DISABLE;
384		phydev->speed = SPEED_1000;
385		phydev->duplex = DUPLEX_FULL;
386	}
387
388	return err;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
389}
390
391static int bcm5482_read_status(struct phy_device *phydev)
392{
393	int err;
394
395	err = genphy_read_status(phydev);
 
 
 
 
396
397	if (phydev->dev_flags & PHY_BCM_FLAGS_MODE_1000BX) {
398		/*
399		 * Only link status matters for 1000Base-X mode, so force
400		 * 1000 Mbit/s full-duplex status
401		 */
402		if (phydev->link) {
403			phydev->speed = SPEED_1000;
404			phydev->duplex = DUPLEX_FULL;
405		}
 
 
 
 
 
 
 
 
 
 
 
 
 
 
406	}
407
408	return err;
 
 
 
 
 
 
 
 
 
 
 
409}
410
411static int bcm5481_config_aneg(struct phy_device *phydev)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
412{
413	struct device_node *np = phydev->mdio.dev.of_node;
414	int ret;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
415
416	/* Aneg firsly. */
417	ret = genphy_config_aneg(phydev);
 
418
419	/* Then we can set up the delay. */
420	bcm5481x_config(phydev);
421
422	if (of_property_read_bool(np, "enet-phy-lane-swap")) {
423		/* Lane Swap - Undocumented register...magic! */
424		ret = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_SEL_ER + 0x9,
425					0x11B);
 
426		if (ret < 0)
427			return ret;
428	}
429
430	return ret;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
431}
432
433static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
 
 
 
 
434{
 
435	int val;
436
437	val = phy_read(phydev, reg);
 
 
 
 
 
 
438	if (val < 0)
439		return val;
440
441	return phy_write(phydev, reg, val | set);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
442}
443
444static int brcm_fet_config_init(struct phy_device *phydev)
445{
446	int reg, err, err2, brcmtest;
447
448	/* Reset the PHY to bring it to a known state. */
449	err = phy_write(phydev, MII_BMCR, BMCR_RESET);
450	if (err < 0)
451		return err;
452
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
453	reg = phy_read(phydev, MII_BRCM_FET_INTREG);
454	if (reg < 0)
455		return reg;
456
457	/* Unmask events we are interested in and mask interrupts globally. */
458	reg = MII_BRCM_FET_IR_DUPLEX_EN |
459	      MII_BRCM_FET_IR_SPEED_EN |
460	      MII_BRCM_FET_IR_LINK_EN |
461	      MII_BRCM_FET_IR_ENABLE |
462	      MII_BRCM_FET_IR_MASK;
 
 
 
 
463
464	err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
465	if (err < 0)
466		return err;
467
468	/* Enable shadow register access */
469	brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST);
470	if (brcmtest < 0)
471		return brcmtest;
472
473	reg = brcmtest | MII_BRCM_FET_BT_SRE;
474
475	err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg);
476	if (err < 0)
 
 
 
477		return err;
478
479	/* Set the LED mode */
480	reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4);
481	if (reg < 0) {
482		err = reg;
483		goto done;
484	}
485
486	reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK;
487	reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1;
 
 
 
 
 
488
489	err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg);
490	if (err < 0)
491		goto done;
 
 
492
493	/* Enable auto MDIX */
494	err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL,
495				       MII_BRCM_FET_SHDW_MC_FAME);
496	if (err < 0)
497		goto done;
 
498
499	if (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE) {
500		/* Enable auto power down */
501		err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2,
502					       MII_BRCM_FET_SHDW_AS2_APDE);
503	}
504
505done:
506	/* Disable shadow register access */
507	err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest);
508	if (!err)
509		err = err2;
510
 
 
511	return err;
512}
513
514static int brcm_fet_ack_interrupt(struct phy_device *phydev)
515{
516	int reg;
517
518	/* Clear pending interrupts.  */
519	reg = phy_read(phydev, MII_BRCM_FET_INTREG);
520	if (reg < 0)
521		return reg;
522
523	return 0;
524}
525
526static int brcm_fet_config_intr(struct phy_device *phydev)
527{
528	int reg, err;
529
530	reg = phy_read(phydev, MII_BRCM_FET_INTREG);
531	if (reg < 0)
532		return reg;
533
534	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 
 
 
 
535		reg &= ~MII_BRCM_FET_IR_MASK;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
536	else
537		reg |= MII_BRCM_FET_IR_MASK;
 
 
 
 
 
 
 
 
 
 
538
539	err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
540	return err;
541}
542
543struct bcm53xx_phy_priv {
544	u64	*stats;
545};
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
546
547static int bcm53xx_phy_probe(struct phy_device *phydev)
548{
549	struct bcm53xx_phy_priv *priv;
 
 
550
551	priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
552	if (!priv)
553		return -ENOMEM;
554
 
 
555	phydev->priv = priv;
556
557	priv->stats = devm_kcalloc(&phydev->mdio.dev,
558				   bcm_phy_get_sset_count(phydev), sizeof(u64),
559				   GFP_KERNEL);
560	if (!priv->stats)
561		return -ENOMEM;
562
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
563	return 0;
564}
565
566static void bcm53xx_phy_get_stats(struct phy_device *phydev,
567				  struct ethtool_stats *stats, u64 *data)
 
 
 
 
 
 
 
 
 
 
568{
569	struct bcm53xx_phy_priv *priv = phydev->priv;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
570
571	bcm_phy_get_stats(phydev, priv->stats, stats, data);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
572}
573
574static struct phy_driver broadcom_drivers[] = {
575{
576	.phy_id		= PHY_ID_BCM5411,
577	.phy_id_mask	= 0xfffffff0,
578	.name		= "Broadcom BCM5411",
579	.features	= PHY_GBIT_FEATURES,
580	.flags		= PHY_HAS_INTERRUPT,
 
 
 
581	.config_init	= bcm54xx_config_init,
582	.ack_interrupt	= bcm_phy_ack_intr,
583	.config_intr	= bcm_phy_config_intr,
 
 
584}, {
585	.phy_id		= PHY_ID_BCM5421,
586	.phy_id_mask	= 0xfffffff0,
587	.name		= "Broadcom BCM5421",
588	.features	= PHY_GBIT_FEATURES,
589	.flags		= PHY_HAS_INTERRUPT,
 
 
 
590	.config_init	= bcm54xx_config_init,
591	.ack_interrupt	= bcm_phy_ack_intr,
592	.config_intr	= bcm_phy_config_intr,
 
 
593}, {
594	.phy_id		= PHY_ID_BCM54210E,
595	.phy_id_mask	= 0xfffffff0,
596	.name		= "Broadcom BCM54210E",
597	.features	= PHY_GBIT_FEATURES,
598	.flags		= PHY_HAS_INTERRUPT,
 
 
 
 
599	.config_init	= bcm54xx_config_init,
600	.ack_interrupt	= bcm_phy_ack_intr,
601	.config_intr	= bcm_phy_config_intr,
 
 
 
 
 
 
 
602}, {
603	.phy_id		= PHY_ID_BCM5461,
604	.phy_id_mask	= 0xfffffff0,
605	.name		= "Broadcom BCM5461",
606	.features	= PHY_GBIT_FEATURES,
607	.flags		= PHY_HAS_INTERRUPT,
 
 
 
608	.config_init	= bcm54xx_config_init,
609	.ack_interrupt	= bcm_phy_ack_intr,
610	.config_intr	= bcm_phy_config_intr,
 
 
 
611}, {
612	.phy_id		= PHY_ID_BCM54612E,
613	.phy_id_mask	= 0xfffffff0,
614	.name		= "Broadcom BCM54612E",
615	.features	= PHY_GBIT_FEATURES,
616	.flags		= PHY_HAS_INTERRUPT,
 
 
 
617	.config_init	= bcm54xx_config_init,
618	.ack_interrupt	= bcm_phy_ack_intr,
619	.config_intr	= bcm_phy_config_intr,
 
 
 
 
 
620}, {
621	.phy_id		= PHY_ID_BCM54616S,
622	.phy_id_mask	= 0xfffffff0,
623	.name		= "Broadcom BCM54616S",
624	.features	= PHY_GBIT_FEATURES,
625	.flags		= PHY_HAS_INTERRUPT,
626	.config_init	= bcm54xx_config_init,
627	.ack_interrupt	= bcm_phy_ack_intr,
628	.config_intr	= bcm_phy_config_intr,
 
 
 
 
 
629}, {
630	.phy_id		= PHY_ID_BCM5464,
631	.phy_id_mask	= 0xfffffff0,
632	.name		= "Broadcom BCM5464",
633	.features	= PHY_GBIT_FEATURES,
634	.flags		= PHY_HAS_INTERRUPT,
 
 
 
635	.config_init	= bcm54xx_config_init,
636	.ack_interrupt	= bcm_phy_ack_intr,
637	.config_intr	= bcm_phy_config_intr,
 
 
 
 
 
638}, {
639	.phy_id		= PHY_ID_BCM5481,
640	.phy_id_mask	= 0xfffffff0,
641	.name		= "Broadcom BCM5481",
642	.features	= PHY_GBIT_FEATURES,
643	.flags		= PHY_HAS_INTERRUPT,
 
 
 
644	.config_init	= bcm54xx_config_init,
645	.config_aneg	= bcm5481_config_aneg,
646	.ack_interrupt	= bcm_phy_ack_intr,
647	.config_intr	= bcm_phy_config_intr,
 
 
 
648}, {
649	.phy_id         = PHY_ID_BCM54810,
650	.phy_id_mask    = 0xfffffff0,
651	.name           = "Broadcom BCM54810",
652	.features       = PHY_GBIT_FEATURES,
653	.flags          = PHY_HAS_INTERRUPT,
 
 
 
 
 
654	.config_init    = bcm54xx_config_init,
655	.config_aneg    = bcm5481_config_aneg,
656	.ack_interrupt  = bcm_phy_ack_intr,
657	.config_intr    = bcm_phy_config_intr,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
658}, {
659	.phy_id		= PHY_ID_BCM5482,
660	.phy_id_mask	= 0xfffffff0,
661	.name		= "Broadcom BCM5482",
662	.features	= PHY_GBIT_FEATURES,
663	.flags		= PHY_HAS_INTERRUPT,
664	.config_init	= bcm5482_config_init,
665	.read_status	= bcm5482_read_status,
666	.ack_interrupt	= bcm_phy_ack_intr,
 
667	.config_intr	= bcm_phy_config_intr,
 
 
 
668}, {
669	.phy_id		= PHY_ID_BCM50610,
670	.phy_id_mask	= 0xfffffff0,
671	.name		= "Broadcom BCM50610",
672	.features	= PHY_GBIT_FEATURES,
673	.flags		= PHY_HAS_INTERRUPT,
 
 
 
674	.config_init	= bcm54xx_config_init,
675	.ack_interrupt	= bcm_phy_ack_intr,
676	.config_intr	= bcm_phy_config_intr,
 
 
 
 
 
677}, {
678	.phy_id		= PHY_ID_BCM50610M,
679	.phy_id_mask	= 0xfffffff0,
680	.name		= "Broadcom BCM50610M",
681	.features	= PHY_GBIT_FEATURES,
682	.flags		= PHY_HAS_INTERRUPT,
 
 
 
683	.config_init	= bcm54xx_config_init,
684	.ack_interrupt	= bcm_phy_ack_intr,
685	.config_intr	= bcm_phy_config_intr,
 
 
 
 
 
686}, {
687	.phy_id		= PHY_ID_BCM57780,
688	.phy_id_mask	= 0xfffffff0,
689	.name		= "Broadcom BCM57780",
690	.features	= PHY_GBIT_FEATURES,
691	.flags		= PHY_HAS_INTERRUPT,
 
 
 
692	.config_init	= bcm54xx_config_init,
693	.ack_interrupt	= bcm_phy_ack_intr,
694	.config_intr	= bcm_phy_config_intr,
 
 
 
695}, {
696	.phy_id		= PHY_ID_BCMAC131,
697	.phy_id_mask	= 0xfffffff0,
698	.name		= "Broadcom BCMAC131",
699	.features	= PHY_BASIC_FEATURES,
700	.flags		= PHY_HAS_INTERRUPT,
701	.config_init	= brcm_fet_config_init,
702	.ack_interrupt	= brcm_fet_ack_interrupt,
703	.config_intr	= brcm_fet_config_intr,
 
 
 
704}, {
705	.phy_id		= PHY_ID_BCM5241,
706	.phy_id_mask	= 0xfffffff0,
707	.name		= "Broadcom BCM5241",
708	.features	= PHY_BASIC_FEATURES,
709	.flags		= PHY_HAS_INTERRUPT,
710	.config_init	= brcm_fet_config_init,
711	.ack_interrupt	= brcm_fet_ack_interrupt,
712	.config_intr	= brcm_fet_config_intr,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
713}, {
714	.phy_id		= PHY_ID_BCM5395,
715	.phy_id_mask	= 0xfffffff0,
716	.name		= "Broadcom BCM5395",
717	.flags		= PHY_IS_INTERNAL,
718	.features	= PHY_GBIT_FEATURES,
 
 
 
 
 
 
 
 
 
 
 
 
719	.get_sset_count	= bcm_phy_get_sset_count,
720	.get_strings	= bcm_phy_get_strings,
721	.get_stats	= bcm53xx_phy_get_stats,
722	.probe		= bcm53xx_phy_probe,
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
723}, {
724	.phy_id         = PHY_ID_BCM89610,
725	.phy_id_mask    = 0xfffffff0,
726	.name           = "Broadcom BCM89610",
727	.features       = PHY_GBIT_FEATURES,
728	.flags          = PHY_HAS_INTERRUPT,
 
 
 
729	.config_init    = bcm54xx_config_init,
730	.ack_interrupt  = bcm_phy_ack_intr,
731	.config_intr    = bcm_phy_config_intr,
 
 
732} };
733
734module_phy_driver(broadcom_drivers);
735
736static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
737	{ PHY_ID_BCM5411, 0xfffffff0 },
738	{ PHY_ID_BCM5421, 0xfffffff0 },
739	{ PHY_ID_BCM54210E, 0xfffffff0 },
740	{ PHY_ID_BCM5461, 0xfffffff0 },
741	{ PHY_ID_BCM54612E, 0xfffffff0 },
742	{ PHY_ID_BCM54616S, 0xfffffff0 },
743	{ PHY_ID_BCM5464, 0xfffffff0 },
744	{ PHY_ID_BCM5481, 0xfffffff0 },
745	{ PHY_ID_BCM54810, 0xfffffff0 },
 
746	{ PHY_ID_BCM5482, 0xfffffff0 },
747	{ PHY_ID_BCM50610, 0xfffffff0 },
748	{ PHY_ID_BCM50610M, 0xfffffff0 },
749	{ PHY_ID_BCM57780, 0xfffffff0 },
750	{ PHY_ID_BCMAC131, 0xfffffff0 },
 
751	{ PHY_ID_BCM5241, 0xfffffff0 },
752	{ PHY_ID_BCM5395, 0xfffffff0 },
 
 
753	{ PHY_ID_BCM89610, 0xfffffff0 },
754	{ }
755};
756
757MODULE_DEVICE_TABLE(mdio, broadcom_tbl);