target/linux/generic/pending-4.4/078-0003-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch

   1 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
   2 Subject: [PATCH] net: phy: cherry-pick Broadcom drivers updates from v4.10
   3 MIME-Version: 1.0
   4 Content-Type: text/plain; charset=UTF-8
   5 Content-Transfer-Encoding: 8bit
   6
   7 This includes following upstream commits:
   8 5519da874ad0 net: phy: broadcom: Move bcm54xx_auxctl_{read, write} to common library
   9 b14995ac2527 net: phy: broadcom: Add BCM54810 PHY entry
  10 5b4e29005123 net: phy: broadcom: add bcm54xx_auxctl_read
  11 d92ead16be40 net: phy: broadcom: Add support for BCM54612E
  12 3cf25904fe46 net: phy: broadcom: Update Auxiliary Control Register macros
  13
  14 Other commits were skipped as they depend on other changes like
  15 ETHTOOL_PHY_DOWNSHIFT & DOWNSHIFT_DEV_DISABLE and new APIs like
  16 get_sset_count.
  17
  18 One exception was picking new regs from commit d06f78c4232d ("net: phy:
  19 broadcom: Add support code for downshift/Wirespeed").
  20
  21 Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
  22 ---
  23
  24 --- a/drivers/net/phy/Kconfig
  25 +++ b/drivers/net/phy/Kconfig
  26 @@ -77,7 +77,7 @@ config BROADCOM_PHY
  27         select BCM_NET_PHYLIB
  28         ---help---
  29           Currently supports the BCM5411, BCM5421, BCM5461, BCM54616S, BCM5464,
  30 -         BCM5481 and BCM5482 PHYs.
  31 +         BCM5481, BCM54810 and BCM5482 PHYs.
  32
  33  config BCM_CYGNUS_PHY
  34         tristate "Drivers for Broadcom Cygnus SoC internal PHY"
  35 --- a/drivers/net/phy/bcm-phy-lib.c
  36 +++ b/drivers/net/phy/bcm-phy-lib.c
  37 @@ -50,6 +50,23 @@ int bcm_phy_read_exp(struct phy_device *
  38  }
  39  EXPORT_SYMBOL_GPL(bcm_phy_read_exp);
  40
  41 +int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum)
  42 +{
  43 +       /* The register must be written to both the Shadow Register Select and
  44 +        * the Shadow Read Register Selector
  45 +        */
  46 +       phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum |
  47 +                 regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT);
  48 +       return phy_read(phydev, MII_BCM54XX_AUX_CTL);
  49 +}
  50 +EXPORT_SYMBOL_GPL(bcm54xx_auxctl_read);
  51 +
  52 +int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
  53 +{
  54 +       return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
  55 +}
  56 +EXPORT_SYMBOL(bcm54xx_auxctl_write);
  57 +
  58  int bcm_phy_write_misc(struct phy_device *phydev,
  59                        u16 reg, u16 chl, u16 val)
  60  {
  61 --- a/drivers/net/phy/bcm-phy-lib.h
  62 +++ b/drivers/net/phy/bcm-phy-lib.h
  63 @@ -19,6 +19,9 @@
  64  int bcm_phy_write_exp(struct phy_device *phydev, u16 reg, u16 val);
  65  int bcm_phy_read_exp(struct phy_device *phydev, u16 reg);
  66
  67 +int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val);
  68 +int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum);
  69 +
  70  int bcm_phy_write_misc(struct phy_device *phydev,
  71                        u16 reg, u16 chl, u16 value);
  72  int bcm_phy_read_misc(struct phy_device *phydev,
  73 --- a/drivers/net/phy/broadcom.c
  74 +++ b/drivers/net/phy/broadcom.c
  75 @@ -18,7 +18,7 @@
  76  #include <linux/module.h>
  77  #include <linux/phy.h>
  78  #include <linux/brcmphy.h>
  79 -
  80 +#include <linux/of.h>
  81
  82  #define BRCM_PHY_MODEL(phydev) \
  83         ((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
  84 @@ -30,9 +30,32 @@ MODULE_DESCRIPTION("Broadcom PHY driver"
  85  MODULE_AUTHOR("Maciej W. Rozycki");
  86  MODULE_LICENSE("GPL");
  87
  88 -static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
  89 +static int bcm54810_config(struct phy_device *phydev)
  90  {
  91 -       return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
  92 +       int rc, val;
  93 +
  94 +       val = bcm_phy_read_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL);
  95 +       val &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN;
  96 +       rc = bcm_phy_write_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL,
  97 +                              val);
  98 +       if (rc < 0)
  99 +               return rc;
 100 +
 101 +       val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
 102 +       val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
 103 +       val |= MII_BCM54XX_AUXCTL_MISC_WREN;
 104 +       rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
 105 +                                 val);
 106 +       if (rc < 0)
 107 +               return rc;
 108 +
 109 +       val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
 110 +       val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
 111 +       rc = bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
 112 +       if (rc < 0)
 113 +               return rc;
 114 +
 115 +       return 0;
 116  }
 117
 118  /* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
 119 @@ -207,6 +230,12 @@ static int bcm54xx_config_init(struct ph
 120             (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
 121                 bcm54xx_adjust_rxrefclk(phydev);
 122
 123 +       if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) {
 124 +               err = bcm54810_config(phydev);
 125 +               if (err)
 126 +                       return err;
 127 +       }
 128 +
 129         bcm54xx_phydsp_config(phydev);
 130
 131         return 0;
 132 @@ -304,6 +333,7 @@ static int bcm5482_read_status(struct ph
 133
 134  static int bcm5481_config_aneg(struct phy_device *phydev)
 135  {
 136 +       struct device_node *np = phydev->dev.of_node;
 137         int ret;
 138
 139         /* Aneg firsly. */
 140 @@ -334,6 +364,49 @@ static int bcm5481_config_aneg(struct ph
 141                 phy_write(phydev, 0x18, reg);
 142         }
 143
 144 +       if (of_property_read_bool(np, "enet-phy-lane-swap")) {
 145 +               /* Lane Swap - Undocumented register...magic! */
 146 +               ret = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_SEL_ER + 0x9,
 147 +                                       0x11B);
 148 +               if (ret < 0)
 149 +                       return ret;
 150 +       }
 151 +
 152 +       return ret;
 153 +}
 154 +
 155 +static int bcm54612e_config_aneg(struct phy_device *phydev)
 156 +{
 157 +       int ret;
 158 +
 159 +       /* First, auto-negotiate. */
 160 +       ret = genphy_config_aneg(phydev);
 161 +
 162 +       /* Clear TX internal delay unless requested. */
 163 +       if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
 164 +           (phydev->interface != PHY_INTERFACE_MODE_RGMII_TXID)) {
 165 +               /* Disable TXD to GTXCLK clock delay (default set) */
 166 +               /* Bit 9 is the only field in shadow register 00011 */
 167 +               bcm_phy_write_shadow(phydev, 0x03, 0);
 168 +       }
 169 +
 170 +       /* Clear RX internal delay unless requested. */
 171 +       if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
 172 +           (phydev->interface != PHY_INTERFACE_MODE_RGMII_RXID)) {
 173 +               u16 reg;
 174 +
 175 +               /* Errata: reads require filling in the write selector field */
 176 +               bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
 177 +                                    MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC);
 178 +               reg = phy_read(phydev, MII_BCM54XX_AUX_CTL);
 179 +               /* Disable RXD to RXC delay (default set) */
 180 +               reg &= ~MII_BCM54XX_AUXCTL_MISC_RXD_RXC_SKEW;
 181 +               /* Clear shadow selector field */
 182 +               reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MASK;
 183 +               bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
 184 +                                    MII_BCM54XX_AUXCTL_MISC_WREN | reg);
 185 +       }
 186 +
 187         return ret;
 188  }
 189
 190 @@ -488,6 +561,18 @@ static struct phy_driver broadcom_driver
 191         .config_intr    = bcm_phy_config_intr,
 192         .driver         = { .owner = THIS_MODULE },
 193  }, {
 194 +       .phy_id         = PHY_ID_BCM54612E,
 195 +       .phy_id_mask    = 0xfffffff0,
 196 +       .name           = "Broadcom BCM54612E",
 197 +       .features       = PHY_GBIT_FEATURES |
 198 +                         SUPPORTED_Pause | SUPPORTED_Asym_Pause,
 199 +       .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 200 +       .config_init    = bcm54xx_config_init,
 201 +       .config_aneg    = bcm54612e_config_aneg,
 202 +       .read_status    = genphy_read_status,
 203 +       .ack_interrupt  = bcm_phy_ack_intr,
 204 +       .config_intr    = bcm_phy_config_intr,
 205 +}, {
 206         .phy_id         = PHY_ID_BCM54616S,
 207         .phy_id_mask    = 0xfffffff0,
 208         .name           = "Broadcom BCM54616S",
 209 @@ -527,6 +612,18 @@ static struct phy_driver broadcom_driver
 210         .config_intr    = bcm_phy_config_intr,
 211         .driver         = { .owner = THIS_MODULE },
 212  }, {
 213 +       .phy_id         = PHY_ID_BCM54810,
 214 +       .phy_id_mask    = 0xfffffff0,
 215 +       .name           = "Broadcom BCM54810",
 216 +       .features       = PHY_GBIT_FEATURES |
 217 +                         SUPPORTED_Pause | SUPPORTED_Asym_Pause,
 218 +       .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
 219 +       .config_init    = bcm54xx_config_init,
 220 +       .config_aneg    = bcm5481_config_aneg,
 221 +       .read_status    = genphy_read_status,
 222 +       .ack_interrupt  = bcm_phy_ack_intr,
 223 +       .config_intr    = bcm_phy_config_intr,
 224 +}, {
 225         .phy_id         = PHY_ID_BCM5482,
 226         .phy_id_mask    = 0xfffffff0,
 227         .name           = "Broadcom BCM5482",
 228 @@ -612,9 +709,11 @@ static struct mdio_device_id __maybe_unu
 229         { PHY_ID_BCM5411, 0xfffffff0 },
 230         { PHY_ID_BCM5421, 0xfffffff0 },
 231         { PHY_ID_BCM5461, 0xfffffff0 },
 232 +       { PHY_ID_BCM54612E, 0xfffffff0 },
 233         { PHY_ID_BCM54616S, 0xfffffff0 },
 234         { PHY_ID_BCM5464, 0xfffffff0 },
 235         { PHY_ID_BCM5481, 0xfffffff0 },
 236 +       { PHY_ID_BCM54810, 0xfffffff0 },
 237         { PHY_ID_BCM5482, 0xfffffff0 },
 238         { PHY_ID_BCM50610, 0xfffffff0 },
 239         { PHY_ID_BCM50610M, 0xfffffff0 },
 240 --- a/include/linux/brcmphy.h
 241 +++ b/include/linux/brcmphy.h
 242 @@ -13,11 +13,13 @@
 243  #define PHY_ID_BCM5241                 0x0143bc30
 244  #define PHY_ID_BCMAC131                        0x0143bc70
 245  #define PHY_ID_BCM5481                 0x0143bca0
 246 +#define PHY_ID_BCM54810                        0x03625d00
 247  #define PHY_ID_BCM5482                 0x0143bcb0
 248  #define PHY_ID_BCM5411                 0x00206070
 249  #define PHY_ID_BCM5421                 0x002060e0
 250  #define PHY_ID_BCM5464                 0x002060b0
 251  #define PHY_ID_BCM5461                 0x002060c0
 252 +#define PHY_ID_BCM54612E               0x03625e60
 253  #define PHY_ID_BCM54616S               0x03625d10
 254  #define PHY_ID_BCM57780                        0x03625d90
 255
 256 @@ -55,6 +57,7 @@
 257  #define PHY_BRCM_EXT_IBND_TX_ENABLE    0x00002000
 258  #define PHY_BRCM_CLEAR_RGMII_MODE      0x00004000
 259  #define PHY_BRCM_DIS_TXCRXC_NOENRGY    0x00008000
 260 +
 261  /* Broadcom BCM7xxx specific workarounds */
 262  #define PHY_BRCM_7XXX_REV(x)           (((x) >> 8) & 0xff)
 263  #define PHY_BRCM_7XXX_PATCH(x)         ((x) & 0xff)
 264 @@ -105,11 +108,14 @@
 265  #define MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA      0x0800
 266
 267  #define MII_BCM54XX_AUXCTL_MISC_WREN   0x8000
 268 +#define MII_BCM54XX_AUXCTL_MISC_RXD_RXC_SKEW   0x0100
 269  #define MII_BCM54XX_AUXCTL_MISC_FORCE_AMDIX    0x0200
 270  #define MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC     0x7000
 271  #define MII_BCM54XX_AUXCTL_SHDWSEL_MISC        0x0007
 272 +#define MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT  12
 273 +#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN  (1 << 8)
 274
 275 -#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL      0x0000
 276 +#define MII_BCM54XX_AUXCTL_SHDWSEL_MASK        0x0007
 277
 278  /*
 279   * Broadcom LED source encodings.  These are used in BCM5461, BCM5481,
 280 @@ -124,6 +130,7 @@
 281  #define BCM_LED_SRC_INTR       0x6
 282  #define BCM_LED_SRC_QUALITY    0x7
 283  #define BCM_LED_SRC_RCVLED     0x8
 284 +#define BCM_LED_SRC_WIRESPEED  0x9
 285  #define BCM_LED_SRC_MULTICOLOR1        0xa
 286  #define BCM_LED_SRC_OPENSHORT  0xb
 287  #define BCM_LED_SRC_OFF                0xe     /* Tied high */
 288 @@ -135,6 +142,14 @@
 289   * Shadow values go into bits [14:10] of register 0x1c to select a shadow
 290   * register to access.
 291   */
 292 +
 293 +/* 00100: Reserved control register 2 */
 294 +#define BCM54XX_SHD_SCR2               0x04
 295 +#define  BCM54XX_SHD_SCR2_WSPD_RTRY_DIS        0x100
 296 +#define  BCM54XX_SHD_SCR2_WSPD_RTRY_LMT_SHIFT  2
 297 +#define  BCM54XX_SHD_SCR2_WSPD_RTRY_LMT_OFFSET 2
 298 +#define  BCM54XX_SHD_SCR2_WSPD_RTRY_LMT_MASK   0x7
 299 +
 300  /* 00101: Spare Control Register 3 */
 301  #define BCM54XX_SHD_SCR3               0x05
 302  #define  BCM54XX_SHD_SCR3_DEF_CLK125   0x0001
 303 @@ -189,6 +204,12 @@
 304  #define BCM5482_SSD_SGMII_SLAVE_EN     0x0002  /* Slave mode enable */
 305  #define BCM5482_SSD_SGMII_SLAVE_AD     0x0001  /* Slave auto-detection */
 306
 307 +/* BCM54810 Registers */
 308 +#define BCM54810_EXP_BROADREACH_LRE_MISC_CTL   (MII_BCM54XX_EXP_SEL_ER + 0x90)
 309 +#define BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN        (1 << 0)
 310 +#define BCM54810_SHD_CLK_CTL                   0x3
 311 +#define BCM54810_SHD_CLK_CTL_GTXCLK_EN         (1 << 9)
 312 +
 313
 314  /*****************************************************************************/
 315  /* Fast Ethernet Transceiver definitions. */