target/linux/generic-2.6/files/drivers/net/phy/rtl8366s.c

   1 /*
   2  * Platform driver for the Realtek RTL8366S ethernet switch
   3  *
   4  * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
   5  * Copyright (C) 2010 Antti Seppälä <a.seppala@gmail.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 as published
   9  * by the Free Software Foundation.
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/module.h>
  14 #include <linux/init.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/delay.h>
  17 #include <linux/skbuff.h>
  18 #include <linux/switch.h>
  19 #include <linux/rtl8366s.h>
  20
  21 #include "rtl8366_smi.h"
  22
  23 #define RTL8366S_DRIVER_DESC    "Realtek RTL8366S ethernet switch driver"
  24 #define RTL8366S_DRIVER_VER     "0.2.2"
  25
  26 #define RTL8366S_PHY_NO_MAX     4
  27 #define RTL8366S_PHY_PAGE_MAX   7
  28 #define RTL8366S_PHY_ADDR_MAX   31
  29
  30 /* Switch Global Configuration register */
  31 #define RTL8366S_SGCR                           0x0000
  32 #define RTL8366S_SGCR_EN_BC_STORM_CTRL          BIT(0)
  33 #define RTL8366S_SGCR_MAX_LENGTH(_x)            (_x << 4)
  34 #define RTL8366S_SGCR_MAX_LENGTH_MASK           RTL8366S_SGCR_MAX_LENGTH(0x3)
  35 #define RTL8366S_SGCR_MAX_LENGTH_1522           RTL8366S_SGCR_MAX_LENGTH(0x0)
  36 #define RTL8366S_SGCR_MAX_LENGTH_1536           RTL8366S_SGCR_MAX_LENGTH(0x1)
  37 #define RTL8366S_SGCR_MAX_LENGTH_1552           RTL8366S_SGCR_MAX_LENGTH(0x2)
  38 #define RTL8366S_SGCR_MAX_LENGTH_16000          RTL8366S_SGCR_MAX_LENGTH(0x3)
  39 #define RTL8366S_SGCR_EN_VLAN                   BIT(13)
  40
  41 /* Port Enable Control register */
  42 #define RTL8366S_PECR                           0x0001
  43
  44 /* Switch Security Control registers */
  45 #define RTL8366S_SSCR0                          0x0002
  46 #define RTL8366S_SSCR1                          0x0003
  47 #define RTL8366S_SSCR2                          0x0004
  48 #define RTL8366S_SSCR2_DROP_UNKNOWN_DA          BIT(0)
  49
  50 #define RTL8366S_RESET_CTRL_REG                 0x0100
  51 #define RTL8366S_CHIP_CTRL_RESET_HW             1
  52 #define RTL8366S_CHIP_CTRL_RESET_SW             (1 << 1)
  53
  54 #define RTL8366S_CHIP_VERSION_CTRL_REG          0x0104
  55 #define RTL8366S_CHIP_VERSION_MASK              0xf
  56 #define RTL8366S_CHIP_ID_REG                    0x0105
  57 #define RTL8366S_CHIP_ID_8366                   0x8366
  58
  59 /* PHY registers control */
  60 #define RTL8366S_PHY_ACCESS_CTRL_REG            0x8028
  61 #define RTL8366S_PHY_ACCESS_DATA_REG            0x8029
  62
  63 #define RTL8366S_PHY_CTRL_READ                  1
  64 #define RTL8366S_PHY_CTRL_WRITE                 0
  65
  66 #define RTL8366S_PHY_REG_MASK                   0x1f
  67 #define RTL8366S_PHY_PAGE_OFFSET                5
  68 #define RTL8366S_PHY_PAGE_MASK                  (0x7 << 5)
  69 #define RTL8366S_PHY_NO_OFFSET                  9
  70 #define RTL8366S_PHY_NO_MASK                    (0x1f << 9)
  71
  72 /* LED control registers */
  73 #define RTL8366S_LED_BLINKRATE_REG              0x0420
  74 #define RTL8366S_LED_BLINKRATE_BIT              0
  75 #define RTL8366S_LED_BLINKRATE_MASK             0x0007
  76
  77 #define RTL8366S_LED_CTRL_REG                   0x0421
  78 #define RTL8366S_LED_0_1_CTRL_REG               0x0422
  79 #define RTL8366S_LED_2_3_CTRL_REG               0x0423
  80
  81 #define RTL8366S_MIB_COUNT                      33
  82 #define RTL8366S_GLOBAL_MIB_COUNT               1
  83 #define RTL8366S_MIB_COUNTER_PORT_OFFSET        0x0040
  84 #define RTL8366S_MIB_COUNTER_BASE               0x1000
  85 #define RTL8366S_MIB_COUNTER_PORT_OFFSET2       0x0008
  86 #define RTL8366S_MIB_COUNTER_BASE2              0x1180
  87 #define RTL8366S_MIB_CTRL_REG                   0x11F0
  88 #define RTL8366S_MIB_CTRL_USER_MASK             0x01FF
  89 #define RTL8366S_MIB_CTRL_BUSY_MASK             0x0001
  90 #define RTL8366S_MIB_CTRL_RESET_MASK            0x0002
  91
  92 #define RTL8366S_MIB_CTRL_GLOBAL_RESET_MASK     0x0004
  93 #define RTL8366S_MIB_CTRL_PORT_RESET_BIT        0x0003
  94 #define RTL8366S_MIB_CTRL_PORT_RESET_MASK       0x01FC
  95
  96
  97 #define RTL8366S_PORT_VLAN_CTRL_BASE            0x0058
  98 #define RTL8366S_PORT_VLAN_CTRL_REG(_p)  \
  99                 (RTL8366S_PORT_VLAN_CTRL_BASE + (_p) / 4)
 100 #define RTL8366S_PORT_VLAN_CTRL_MASK            0xf
 101 #define RTL8366S_PORT_VLAN_CTRL_SHIFT(_p)       (4 * ((_p) % 4))
 102
 103
 104 #define RTL8366S_VLAN_TABLE_READ_BASE           0x018B
 105 #define RTL8366S_VLAN_TABLE_WRITE_BASE          0x0185
 106
 107 #define RTL8366S_VLAN_TB_CTRL_REG               0x010F
 108
 109 #define RTL8366S_TABLE_ACCESS_CTRL_REG          0x0180
 110 #define RTL8366S_TABLE_VLAN_READ_CTRL           0x0E01
 111 #define RTL8366S_TABLE_VLAN_WRITE_CTRL          0x0F01
 112
 113 #define RTL8366S_VLAN_MEMCONF_BASE              0x0016
 114
 115 #define RTL8366S_VLAN_MEMBERINGRESS_REG         0x0379
 116
 117 #define RTL8366S_PORT_LINK_STATUS_BASE          0x0060
 118 #define RTL8366S_PORT_STATUS_SPEED_MASK         0x0003
 119 #define RTL8366S_PORT_STATUS_DUPLEX_MASK        0x0004
 120 #define RTL8366S_PORT_STATUS_LINK_MASK          0x0010
 121 #define RTL8366S_PORT_STATUS_TXPAUSE_MASK       0x0020
 122 #define RTL8366S_PORT_STATUS_RXPAUSE_MASK       0x0040
 123 #define RTL8366S_PORT_STATUS_AN_MASK            0x0080
 124
 125
 126 #define RTL8366S_PORT_NUM_CPU           5
 127 #define RTL8366S_NUM_PORTS              6
 128 #define RTL8366S_NUM_VLANS              16
 129 #define RTL8366S_NUM_LEDGROUPS          4
 130 #define RTL8366S_NUM_VIDS               4096
 131 #define RTL8366S_PRIORITYMAX            7
 132 #define RTL8366S_FIDMAX                 7
 133
 134
 135 #define RTL8366S_PORT_1                 (1 << 0) /* In userspace port 0 */
 136 #define RTL8366S_PORT_2                 (1 << 1) /* In userspace port 1 */
 137 #define RTL8366S_PORT_3                 (1 << 2) /* In userspace port 2 */
 138 #define RTL8366S_PORT_4                 (1 << 3) /* In userspace port 3 */
 139
 140 #define RTL8366S_PORT_UNKNOWN           (1 << 4) /* No known connection */
 141 #define RTL8366S_PORT_CPU               (1 << 5) /* CPU port */
 142
 143 #define RTL8366S_PORT_ALL               (RTL8366S_PORT_1 |      \
 144                                          RTL8366S_PORT_2 |      \
 145                                          RTL8366S_PORT_3 |      \
 146                                          RTL8366S_PORT_4 |      \
 147                                          RTL8366S_PORT_UNKNOWN | \
 148                                          RTL8366S_PORT_CPU)
 149
 150 #define RTL8366S_PORT_ALL_BUT_CPU       (RTL8366S_PORT_1 |      \
 151                                          RTL8366S_PORT_2 |      \
 152                                          RTL8366S_PORT_3 |      \
 153                                          RTL8366S_PORT_4 |      \
 154                                          RTL8366S_PORT_UNKNOWN)
 155
 156 #define RTL8366S_PORT_ALL_EXTERNAL      (RTL8366S_PORT_1 |      \
 157                                          RTL8366S_PORT_2 |      \
 158                                          RTL8366S_PORT_3 |      \
 159                                          RTL8366S_PORT_4)
 160
 161 #define RTL8366S_PORT_ALL_INTERNAL      (RTL8366S_PORT_UNKNOWN | \
 162                                          RTL8366S_PORT_CPU)
 163
 164 struct rtl8366s {
 165         struct device           *parent;
 166         struct rtl8366_smi      smi;
 167         struct switch_dev       dev;
 168 };
 169
 170 struct rtl8366s_vlan_mc {
 171         u16     reserved2:1;
 172         u16     priority:3;
 173         u16     vid:12;
 174
 175         u16     reserved1:1;
 176         u16     fid:3;
 177         u16     untag:6;
 178         u16     member:6;
 179 };
 180
 181 struct rtl8366s_vlan_4k {
 182         u16     reserved1:4;
 183         u16     vid:12;
 184
 185         u16     reserved2:1;
 186         u16     fid:3;
 187         u16     untag:6;
 188         u16     member:6;
 189 };
 190
 191 static struct rtl8366_mib_counter rtl8366s_mib_counters[] = {
 192         { 0,  0, 4, "IfInOctets"                                },
 193         { 0,  4, 4, "EtherStatsOctets"                          },
 194         { 0,  8, 2, "EtherStatsUnderSizePkts"                   },
 195         { 0, 10, 2, "EtherFragments"                            },
 196         { 0, 12, 2, "EtherStatsPkts64Octets"                    },
 197         { 0, 14, 2, "EtherStatsPkts65to127Octets"               },
 198         { 0, 16, 2, "EtherStatsPkts128to255Octets"              },
 199         { 0, 18, 2, "EtherStatsPkts256to511Octets"              },
 200         { 0, 20, 2, "EtherStatsPkts512to1023Octets"             },
 201         { 0, 22, 2, "EtherStatsPkts1024to1518Octets"            },
 202         { 0, 24, 2, "EtherOversizeStats"                        },
 203         { 0, 26, 2, "EtherStatsJabbers"                         },
 204         { 0, 28, 2, "IfInUcastPkts"                             },
 205         { 0, 30, 2, "EtherStatsMulticastPkts"                   },
 206         { 0, 32, 2, "EtherStatsBroadcastPkts"                   },
 207         { 0, 34, 2, "EtherStatsDropEvents"                      },
 208         { 0, 36, 2, "Dot3StatsFCSErrors"                        },
 209         { 0, 38, 2, "Dot3StatsSymbolErrors"                     },
 210         { 0, 40, 2, "Dot3InPauseFrames"                         },
 211         { 0, 42, 2, "Dot3ControlInUnknownOpcodes"               },
 212         { 0, 44, 4, "IfOutOctets"                               },
 213         { 0, 48, 2, "Dot3StatsSingleCollisionFrames"            },
 214         { 0, 50, 2, "Dot3StatMultipleCollisionFrames"           },
 215         { 0, 52, 2, "Dot3sDeferredTransmissions"                },
 216         { 0, 54, 2, "Dot3StatsLateCollisions"                   },
 217         { 0, 56, 2, "EtherStatsCollisions"                      },
 218         { 0, 58, 2, "Dot3StatsExcessiveCollisions"              },
 219         { 0, 60, 2, "Dot3OutPauseFrames"                        },
 220         { 0, 62, 2, "Dot1dBasePortDelayExceededDiscards"        },
 221
 222         /*
 223          * The following counters are accessible at a different
 224          * base address.
 225          */
 226         { 1,  0, 2, "Dot1dTpPortInDiscards"                     },
 227         { 1,  2, 2, "IfOutUcastPkts"                            },
 228         { 1,  4, 2, "IfOutMulticastPkts"                        },
 229         { 1,  6, 2, "IfOutBroadcastPkts"                        },
 230 };
 231
 232 #define REG_WR(_smi, _reg, _val)                                        \
 233         do {                                                            \
 234                 err = rtl8366_smi_write_reg(_smi, _reg, _val);          \
 235                 if (err)                                                \
 236                         return err;                                     \
 237         } while (0)
 238
 239 #define REG_RMW(_smi, _reg, _mask, _val)                                \
 240         do {                                                            \
 241                 err = rtl8366_smi_rmwr(_smi, _reg, _mask, _val);        \
 242                 if (err)                                                \
 243                         return err;                                     \
 244         } while (0)
 245
 246 static inline struct rtl8366s *smi_to_rtl8366s(struct rtl8366_smi *smi)
 247 {
 248         return container_of(smi, struct rtl8366s, smi);
 249 }
 250
 251 static inline struct rtl8366s *sw_to_rtl8366s(struct switch_dev *sw)
 252 {
 253         return container_of(sw, struct rtl8366s, dev);
 254 }
 255
 256 static inline struct rtl8366_smi *sw_to_rtl8366_smi(struct switch_dev *sw)
 257 {
 258         struct rtl8366s *rtl = sw_to_rtl8366s(sw);
 259         return &rtl->smi;
 260 }
 261
 262 static int rtl8366s_reset_chip(struct rtl8366_smi *smi)
 263 {
 264         int timeout = 10;
 265         u32 data;
 266
 267         rtl8366_smi_write_reg(smi, RTL8366S_RESET_CTRL_REG,
 268                               RTL8366S_CHIP_CTRL_RESET_HW);
 269         do {
 270                 msleep(1);
 271                 if (rtl8366_smi_read_reg(smi, RTL8366S_RESET_CTRL_REG, &data))
 272                         return -EIO;
 273
 274                 if (!(data & RTL8366S_CHIP_CTRL_RESET_HW))
 275                         break;
 276         } while (--timeout);
 277
 278         if (!timeout) {
 279                 printk("Timeout waiting for the switch to reset\n");
 280                 return -EIO;
 281         }
 282
 283         return 0;
 284 }
 285
 286 static int rtl8366s_hw_init(struct rtl8366_smi *smi)
 287 {
 288         int err;
 289
 290         /* set maximum packet length to 1536 bytes */
 291         REG_RMW(smi, RTL8366S_SGCR, RTL8366S_SGCR_MAX_LENGTH_MASK,
 292                 RTL8366S_SGCR_MAX_LENGTH_1536);
 293
 294         /* enable all ports */
 295         REG_WR(smi, RTL8366S_PECR, 0);
 296
 297         /* enable learning for all ports */
 298         REG_WR(smi, RTL8366S_SSCR0, 0);
 299
 300         /* enable auto ageing for all ports */
 301         REG_WR(smi, RTL8366S_SSCR1, 0);
 302
 303         /*
 304          * discard VLAN tagged packets if the port is not a member of
 305          * the VLAN with which the packets is associated.
 306          */
 307         REG_WR(smi, RTL8366S_VLAN_MEMBERINGRESS_REG, RTL8366S_PORT_ALL);
 308
 309         /* don't drop packets whose DA has not been learned */
 310         REG_RMW(smi, RTL8366S_SSCR2, RTL8366S_SSCR2_DROP_UNKNOWN_DA, 0);
 311
 312         return 0;
 313 }
 314
 315 static int rtl8366s_read_phy_reg(struct rtl8366_smi *smi,
 316                                  u32 phy_no, u32 page, u32 addr, u32 *data)
 317 {
 318         u32 reg;
 319         int ret;
 320
 321         if (phy_no > RTL8366S_PHY_NO_MAX)
 322                 return -EINVAL;
 323
 324         if (page > RTL8366S_PHY_PAGE_MAX)
 325                 return -EINVAL;
 326
 327         if (addr > RTL8366S_PHY_ADDR_MAX)
 328                 return -EINVAL;
 329
 330         ret = rtl8366_smi_write_reg(smi, RTL8366S_PHY_ACCESS_CTRL_REG,
 331                                     RTL8366S_PHY_CTRL_READ);
 332         if (ret)
 333                 return ret;
 334
 335         reg = 0x8000 | (1 << (phy_no + RTL8366S_PHY_NO_OFFSET)) |
 336               ((page << RTL8366S_PHY_PAGE_OFFSET) & RTL8366S_PHY_PAGE_MASK) |
 337               (addr & RTL8366S_PHY_REG_MASK);
 338
 339         ret = rtl8366_smi_write_reg(smi, reg, 0);
 340         if (ret)
 341                 return ret;
 342
 343         ret = rtl8366_smi_read_reg(smi, RTL8366S_PHY_ACCESS_DATA_REG, data);
 344         if (ret)
 345                 return ret;
 346
 347         return 0;
 348 }
 349
 350 static int rtl8366s_write_phy_reg(struct rtl8366_smi *smi,
 351                                   u32 phy_no, u32 page, u32 addr, u32 data)
 352 {
 353         u32 reg;
 354         int ret;
 355
 356         if (phy_no > RTL8366S_PHY_NO_MAX)
 357                 return -EINVAL;
 358
 359         if (page > RTL8366S_PHY_PAGE_MAX)
 360                 return -EINVAL;
 361
 362         if (addr > RTL8366S_PHY_ADDR_MAX)
 363                 return -EINVAL;
 364
 365         ret = rtl8366_smi_write_reg(smi, RTL8366S_PHY_ACCESS_CTRL_REG,
 366                                     RTL8366S_PHY_CTRL_WRITE);
 367         if (ret)
 368                 return ret;
 369
 370         reg = 0x8000 | (1 << (phy_no + RTL8366S_PHY_NO_OFFSET)) |
 371               ((page << RTL8366S_PHY_PAGE_OFFSET) & RTL8366S_PHY_PAGE_MASK) |
 372               (addr & RTL8366S_PHY_REG_MASK);
 373
 374         ret = rtl8366_smi_write_reg(smi, reg, data);
 375         if (ret)
 376                 return ret;
 377
 378         return 0;
 379 }
 380
 381 static int rtl8366_get_mib_counter(struct rtl8366_smi *smi, int counter,
 382                                    int port, unsigned long long *val)
 383 {
 384         int i;
 385         int err;
 386         u32 addr, data;
 387         u64 mibvalue;
 388
 389         if (port > RTL8366S_NUM_PORTS || counter >= RTL8366S_MIB_COUNT)
 390                 return -EINVAL;
 391
 392         switch (rtl8366s_mib_counters[counter].base) {
 393         case 0:
 394                 addr = RTL8366S_MIB_COUNTER_BASE +
 395                        RTL8366S_MIB_COUNTER_PORT_OFFSET * port;
 396                 break;
 397
 398         case 1:
 399                 addr = RTL8366S_MIB_COUNTER_BASE2 +
 400                         RTL8366S_MIB_COUNTER_PORT_OFFSET2 * port;
 401                 break;
 402
 403         default:
 404                 return -EINVAL;
 405         }
 406
 407         addr += rtl8366s_mib_counters[counter].offset;
 408
 409         /*
 410          * Writing access counter address first
 411          * then ASIC will prepare 64bits counter wait for being retrived
 412          */
 413         data = 0; /* writing data will be discard by ASIC */
 414         err = rtl8366_smi_write_reg(smi, addr, data);
 415         if (err)
 416                 return err;
 417
 418         /* read MIB control register */
 419         err =  rtl8366_smi_read_reg(smi, RTL8366S_MIB_CTRL_REG, &data);
 420         if (err)
 421                 return err;
 422
 423         if (data & RTL8366S_MIB_CTRL_BUSY_MASK)
 424                 return -EBUSY;
 425
 426         if (data & RTL8366S_MIB_CTRL_RESET_MASK)
 427                 return -EIO;
 428
 429         mibvalue = 0;
 430         for (i = rtl8366s_mib_counters[counter].length; i > 0; i--) {
 431                 err = rtl8366_smi_read_reg(smi, addr + (i - 1), &data);
 432                 if (err)
 433                         return err;
 434
 435                 mibvalue = (mibvalue << 16) | (data & 0xFFFF);
 436         }
 437
 438         *val = mibvalue;
 439         return 0;
 440 }
 441
 442 static int rtl8366s_get_vlan_4k(struct rtl8366_smi *smi, u32 vid,
 443                                 struct rtl8366_vlan_4k *vlan4k)
 444 {
 445         struct rtl8366s_vlan_4k vlan4k_priv;
 446         int err;
 447         u32 data;
 448         u16 *tableaddr;
 449
 450         memset(vlan4k, '\0', sizeof(struct rtl8366_vlan_4k));
 451         vlan4k_priv.vid = vid;
 452
 453         if (vid >= RTL8366S_NUM_VIDS)
 454                 return -EINVAL;
 455
 456         tableaddr = (u16 *)&vlan4k_priv;
 457
 458         /* write VID */
 459         data = *tableaddr;
 460         err = rtl8366_smi_write_reg(smi, RTL8366S_VLAN_TABLE_WRITE_BASE, data);
 461         if (err)
 462                 return err;
 463
 464         /* write table access control word */
 465         err = rtl8366_smi_write_reg(smi, RTL8366S_TABLE_ACCESS_CTRL_REG,
 466                                     RTL8366S_TABLE_VLAN_READ_CTRL);
 467         if (err)
 468                 return err;
 469
 470         err = rtl8366_smi_read_reg(smi, RTL8366S_VLAN_TABLE_READ_BASE, &data);
 471         if (err)
 472                 return err;
 473
 474         *tableaddr = data;
 475         tableaddr++;
 476
 477         err = rtl8366_smi_read_reg(smi, RTL8366S_VLAN_TABLE_READ_BASE + 1,
 478                                    &data);
 479         if (err)
 480                 return err;
 481
 482         *tableaddr = data;
 483
 484         vlan4k->vid = vid;
 485         vlan4k->untag = vlan4k_priv.untag;
 486         vlan4k->member = vlan4k_priv.member;
 487         vlan4k->fid = vlan4k_priv.fid;
 488
 489         return 0;
 490 }
 491
 492 static int rtl8366s_set_vlan_4k(struct rtl8366_smi *smi,
 493                                 const struct rtl8366_vlan_4k *vlan4k)
 494 {
 495         struct rtl8366s_vlan_4k vlan4k_priv;
 496         int err;
 497         u32 data;
 498         u16 *tableaddr;
 499
 500         if (vlan4k->vid >= RTL8366S_NUM_VIDS ||
 501             vlan4k->member > RTL8366S_PORT_ALL ||
 502             vlan4k->untag > RTL8366S_PORT_ALL ||
 503             vlan4k->fid > RTL8366S_FIDMAX)
 504                 return -EINVAL;
 505
 506         vlan4k_priv.vid = vlan4k->vid;
 507         vlan4k_priv.untag = vlan4k->untag;
 508         vlan4k_priv.member = vlan4k->member;
 509         vlan4k_priv.fid = vlan4k->fid;
 510
 511         tableaddr = (u16 *)&vlan4k_priv;
 512
 513         data = *tableaddr;
 514
 515         err = rtl8366_smi_write_reg(smi, RTL8366S_VLAN_TABLE_WRITE_BASE, data);
 516         if (err)
 517                 return err;
 518
 519         tableaddr++;
 520
 521         data = *tableaddr;
 522
 523         err = rtl8366_smi_write_reg(smi, RTL8366S_VLAN_TABLE_WRITE_BASE + 1,
 524                                     data);
 525         if (err)
 526                 return err;
 527
 528         /* write table access control word */
 529         err = rtl8366_smi_write_reg(smi, RTL8366S_TABLE_ACCESS_CTRL_REG,
 530                                     RTL8366S_TABLE_VLAN_WRITE_CTRL);
 531
 532         return err;
 533 }
 534
 535 static int rtl8366s_get_vlan_mc(struct rtl8366_smi *smi, u32 index,
 536                                 struct rtl8366_vlan_mc *vlanmc)
 537 {
 538         struct rtl8366s_vlan_mc vlanmc_priv;
 539         int err;
 540         u32 addr;
 541         u32 data;
 542         u16 *tableaddr;
 543
 544         memset(vlanmc, '\0', sizeof(struct rtl8366_vlan_mc));
 545
 546         if (index >= RTL8366S_NUM_VLANS)
 547                 return -EINVAL;
 548
 549         tableaddr = (u16 *)&vlanmc_priv;
 550
 551         addr = RTL8366S_VLAN_MEMCONF_BASE + (index << 1);
 552         err = rtl8366_smi_read_reg(smi, addr, &data);
 553         if (err)
 554                 return err;
 555
 556         *tableaddr = data;
 557         tableaddr++;
 558
 559         addr = RTL8366S_VLAN_MEMCONF_BASE + 1 + (index << 1);
 560         err = rtl8366_smi_read_reg(smi, addr, &data);
 561         if (err)
 562                 return err;
 563
 564         *tableaddr = data;
 565
 566         vlanmc->vid = vlanmc_priv.vid;
 567         vlanmc->priority = vlanmc_priv.priority;
 568         vlanmc->untag = vlanmc_priv.untag;
 569         vlanmc->member = vlanmc_priv.member;
 570         vlanmc->fid = vlanmc_priv.fid;
 571
 572         return 0;
 573 }
 574
 575 static int rtl8366s_set_vlan_mc(struct rtl8366_smi *smi, u32 index,
 576                                 const struct rtl8366_vlan_mc *vlanmc)
 577 {
 578         struct rtl8366s_vlan_mc vlanmc_priv;
 579         int err;
 580         u32 addr;
 581         u32 data;
 582         u16 *tableaddr;
 583
 584         if (index >= RTL8366S_NUM_VLANS ||
 585             vlanmc->vid >= RTL8366S_NUM_VIDS ||
 586             vlanmc->priority > RTL8366S_PRIORITYMAX ||
 587             vlanmc->member > RTL8366S_PORT_ALL ||
 588             vlanmc->untag > RTL8366S_PORT_ALL ||
 589             vlanmc->fid > RTL8366S_FIDMAX)
 590                 return -EINVAL;
 591
 592         vlanmc_priv.vid = vlanmc->vid;
 593         vlanmc_priv.priority = vlanmc->priority;
 594         vlanmc_priv.untag = vlanmc->untag;
 595         vlanmc_priv.member = vlanmc->member;
 596         vlanmc_priv.fid = vlanmc->fid;
 597
 598         addr = RTL8366S_VLAN_MEMCONF_BASE + (index << 1);
 599
 600         tableaddr = (u16 *)&vlanmc_priv;
 601         data = *tableaddr;
 602
 603         err = rtl8366_smi_write_reg(smi, addr, data);
 604         if (err)
 605                 return err;
 606
 607         addr = RTL8366S_VLAN_MEMCONF_BASE + 1 + (index << 1);
 608
 609         tableaddr++;
 610         data = *tableaddr;
 611
 612         err = rtl8366_smi_write_reg(smi, addr, data);
 613         if (err)
 614                 return err;
 615
 616         return 0;
 617 }
 618
 619 static int rtl8366s_get_mc_index(struct rtl8366_smi *smi, int port, int *val)
 620 {
 621         u32 data;
 622         int err;
 623
 624         if (port >= RTL8366S_NUM_PORTS)
 625                 return -EINVAL;
 626
 627         err = rtl8366_smi_read_reg(smi, RTL8366S_PORT_VLAN_CTRL_REG(port),
 628                                    &data);
 629         if (err)
 630                 return err;
 631
 632         *val = (data >> RTL8366S_PORT_VLAN_CTRL_SHIFT(port)) &
 633                RTL8366S_PORT_VLAN_CTRL_MASK;
 634
 635         return 0;
 636 }
 637
 638 static int rtl8366s_set_mc_index(struct rtl8366_smi *smi, int port, int index)
 639 {
 640         if (port >= RTL8366S_NUM_PORTS || index >= RTL8366S_NUM_VLANS)
 641                 return -EINVAL;
 642
 643         return rtl8366_smi_rmwr(smi, RTL8366S_PORT_VLAN_CTRL_REG(port),
 644                                 RTL8366S_PORT_VLAN_CTRL_MASK <<
 645                                         RTL8366S_PORT_VLAN_CTRL_SHIFT(port),
 646                                 (index & RTL8366S_PORT_VLAN_CTRL_MASK) <<
 647                                         RTL8366S_PORT_VLAN_CTRL_SHIFT(port));
 648 }
 649
 650 static int rtl8366s_vlan_set_vlan(struct rtl8366_smi *smi, int enable)
 651 {
 652         return rtl8366_smi_rmwr(smi, RTL8366S_SGCR, RTL8366S_SGCR_EN_VLAN,
 653                                 (enable) ? RTL8366S_SGCR_EN_VLAN : 0);
 654 }
 655
 656 static int rtl8366s_vlan_set_4ktable(struct rtl8366_smi *smi, int enable)
 657 {
 658         return rtl8366_smi_rmwr(smi, RTL8366S_VLAN_TB_CTRL_REG,
 659                                 1, (enable) ? 1 : 0);
 660 }
 661
 662 static int rtl8366s_sw_reset_mibs(struct switch_dev *dev,
 663                                   const struct switch_attr *attr,
 664                                   struct switch_val *val)
 665 {
 666         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 667         int err = 0;
 668
 669         if (val->value.i == 1)
 670                 err = rtl8366_smi_rmwr(smi, RTL8366S_MIB_CTRL_REG, 0, (1 << 2));
 671
 672         return err;
 673 }
 674
 675 static int rtl8366s_sw_get_vlan_enable(struct switch_dev *dev,
 676                                        const struct switch_attr *attr,
 677                                        struct switch_val *val)
 678 {
 679         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 680         u32 data;
 681
 682         if (attr->ofs == 1) {
 683                 rtl8366_smi_read_reg(smi, RTL8366S_SGCR, &data);
 684
 685                 if (data & RTL8366S_SGCR_EN_VLAN)
 686                         val->value.i = 1;
 687                 else
 688                         val->value.i = 0;
 689         } else if (attr->ofs == 2) {
 690                 rtl8366_smi_read_reg(smi, RTL8366S_VLAN_TB_CTRL_REG, &data);
 691
 692                 if (data & 0x0001)
 693                         val->value.i = 1;
 694                 else
 695                         val->value.i = 0;
 696         }
 697
 698         return 0;
 699 }
 700
 701 static int rtl8366s_sw_get_blinkrate(struct switch_dev *dev,
 702                                      const struct switch_attr *attr,
 703                                      struct switch_val *val)
 704 {
 705         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 706         u32 data;
 707
 708         rtl8366_smi_read_reg(smi, RTL8366S_LED_BLINKRATE_REG, &data);
 709
 710         val->value.i = (data & (RTL8366S_LED_BLINKRATE_MASK));
 711
 712         return 0;
 713 }
 714
 715 static int rtl8366s_sw_set_blinkrate(struct switch_dev *dev,
 716                                     const struct switch_attr *attr,
 717                                     struct switch_val *val)
 718 {
 719         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 720
 721         if (val->value.i >= 6)
 722                 return -EINVAL;
 723
 724         return rtl8366_smi_rmwr(smi, RTL8366S_LED_BLINKRATE_REG,
 725                                 RTL8366S_LED_BLINKRATE_MASK,
 726                                 val->value.i);
 727 }
 728
 729 static int rtl8366s_sw_set_vlan_enable(struct switch_dev *dev,
 730                                        const struct switch_attr *attr,
 731                                        struct switch_val *val)
 732 {
 733         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 734
 735         if (attr->ofs == 1)
 736                 return rtl8366s_vlan_set_vlan(smi, val->value.i);
 737         else
 738                 return rtl8366s_vlan_set_4ktable(smi, val->value.i);
 739 }
 740
 741 static int rtl8366s_sw_get_learning_enable(struct switch_dev *dev,
 742                                            const struct switch_attr *attr,
 743                                            struct switch_val *val)
 744 {
 745         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 746         u32 data;
 747
 748         rtl8366_smi_read_reg(smi,RTL8366S_SSCR0, &data);
 749         val->value.i = !data;
 750
 751         return 0;
 752 }
 753
 754
 755 static int rtl8366s_sw_set_learning_enable(struct switch_dev *dev,
 756                                            const struct switch_attr *attr,
 757                                            struct switch_val *val)
 758 {
 759         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 760         u32 portmask = 0;
 761         int err = 0;
 762
 763         if (!val->value.i)
 764                 portmask = RTL8366S_PORT_ALL;
 765
 766         /* set learning for all ports */
 767         REG_WR(smi, RTL8366S_SSCR0, portmask);
 768
 769         /* set auto ageing for all ports */
 770         REG_WR(smi, RTL8366S_SSCR1, portmask);
 771
 772         return 0;
 773 }
 774
 775
 776 static const char *rtl8366s_speed_str(unsigned speed)
 777 {
 778         switch (speed) {
 779         case 0:
 780                 return "10baseT";
 781         case 1:
 782                 return "100baseT";
 783         case 2:
 784                 return "1000baseT";
 785         }
 786
 787         return "unknown";
 788 }
 789
 790 static int rtl8366s_sw_get_port_link(struct switch_dev *dev,
 791                                      const struct switch_attr *attr,
 792                                      struct switch_val *val)
 793 {
 794         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 795         u32 len = 0, data = 0;
 796
 797         if (val->port_vlan >= RTL8366S_NUM_PORTS)
 798                 return -EINVAL;
 799
 800         memset(smi->buf, '\0', sizeof(smi->buf));
 801         rtl8366_smi_read_reg(smi, RTL8366S_PORT_LINK_STATUS_BASE +
 802                              (val->port_vlan / 2), &data);
 803
 804         if (val->port_vlan % 2)
 805                 data = data >> 8;
 806
 807         if (data & RTL8366S_PORT_STATUS_LINK_MASK) {
 808                 len = snprintf(smi->buf, sizeof(smi->buf),
 809                                 "port:%d link:up speed:%s %s-duplex %s%s%s",
 810                                 val->port_vlan,
 811                                 rtl8366s_speed_str(data &
 812                                           RTL8366S_PORT_STATUS_SPEED_MASK),
 813                                 (data & RTL8366S_PORT_STATUS_DUPLEX_MASK) ?
 814                                         "full" : "half",
 815                                 (data & RTL8366S_PORT_STATUS_TXPAUSE_MASK) ?
 816                                         "tx-pause ": "",
 817                                 (data & RTL8366S_PORT_STATUS_RXPAUSE_MASK) ?
 818                                         "rx-pause " : "",
 819                                 (data & RTL8366S_PORT_STATUS_AN_MASK) ?
 820                                         "nway ": "");
 821         } else {
 822                 len = snprintf(smi->buf, sizeof(smi->buf), "port:%d link: down",
 823                                 val->port_vlan);
 824         }
 825
 826         val->value.s = smi->buf;
 827         val->len = len;
 828
 829         return 0;
 830 }
 831
 832 static int rtl8366s_sw_get_vlan_info(struct switch_dev *dev,
 833                                      const struct switch_attr *attr,
 834                                      struct switch_val *val)
 835 {
 836         int i;
 837         u32 len = 0;
 838         struct rtl8366_vlan_4k vlan4k;
 839         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 840         char *buf = smi->buf;
 841         int err;
 842
 843         if (val->port_vlan == 0 || val->port_vlan >= RTL8366S_NUM_VLANS)
 844                 return -EINVAL;
 845
 846         memset(buf, '\0', sizeof(smi->buf));
 847
 848         err = rtl8366s_get_vlan_4k(smi, val->port_vlan, &vlan4k);
 849         if (err)
 850                 return err;
 851
 852         len += snprintf(buf + len, sizeof(smi->buf) - len,
 853                         "VLAN %d: Ports: '", vlan4k.vid);
 854
 855         for (i = 0; i < RTL8366S_NUM_PORTS; i++) {
 856                 if (!(vlan4k.member & (1 << i)))
 857                         continue;
 858
 859                 len += snprintf(buf + len, sizeof(smi->buf) - len, "%d%s", i,
 860                                 (vlan4k.untag & (1 << i)) ? "" : "t");
 861         }
 862
 863         len += snprintf(buf + len, sizeof(smi->buf) - len,
 864                         "', members=%04x, untag=%04x, fid=%u",
 865                         vlan4k.member, vlan4k.untag, vlan4k.fid);
 866
 867         val->value.s = buf;
 868         val->len = len;
 869
 870         return 0;
 871 }
 872
 873 static int rtl8366s_sw_set_port_led(struct switch_dev *dev,
 874                                     const struct switch_attr *attr,
 875                                     struct switch_val *val)
 876 {
 877         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 878         u32 data;
 879         u32 mask;
 880         u32 reg;
 881
 882         if (val->port_vlan >= RTL8366S_NUM_PORTS ||
 883             (1 << val->port_vlan) == RTL8366S_PORT_UNKNOWN)
 884                 return -EINVAL;
 885
 886         if (val->port_vlan == RTL8366S_PORT_NUM_CPU) {
 887                 reg = RTL8366S_LED_BLINKRATE_REG;
 888                 mask = 0xF << 4;
 889                 data = val->value.i << 4;
 890         } else {
 891                 reg = RTL8366S_LED_CTRL_REG;
 892                 mask = 0xF << (val->port_vlan * 4),
 893                 data = val->value.i << (val->port_vlan * 4);
 894         }
 895
 896         return rtl8366_smi_rmwr(smi, RTL8366S_LED_BLINKRATE_REG, mask, data);
 897 }
 898
 899 static int rtl8366s_sw_get_port_led(struct switch_dev *dev,
 900                                     const struct switch_attr *attr,
 901                                     struct switch_val *val)
 902 {
 903         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 904         u32 data = 0;
 905
 906         if (val->port_vlan >= RTL8366S_NUM_LEDGROUPS)
 907                 return -EINVAL;
 908
 909         rtl8366_smi_read_reg(smi, RTL8366S_LED_CTRL_REG, &data);
 910         val->value.i = (data >> (val->port_vlan * 4)) & 0x000F;
 911
 912         return 0;
 913 }
 914
 915 static int rtl8366s_sw_reset_port_mibs(struct switch_dev *dev,
 916                                        const struct switch_attr *attr,
 917                                        struct switch_val *val)
 918 {
 919         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 920
 921         if (val->port_vlan >= RTL8366S_NUM_PORTS)
 922                 return -EINVAL;
 923
 924
 925         return rtl8366_smi_rmwr(smi, RTL8366S_MIB_CTRL_REG,
 926                                 0, (1 << (val->port_vlan + 3)));
 927 }
 928
 929 static int rtl8366s_sw_get_port_mib(struct switch_dev *dev,
 930                                     const struct switch_attr *attr,
 931                                     struct switch_val *val)
 932 {
 933         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 934         int i, len = 0;
 935         unsigned long long counter = 0;
 936         char *buf = smi->buf;
 937
 938         if (val->port_vlan >= RTL8366S_NUM_PORTS)
 939                 return -EINVAL;
 940
 941         len += snprintf(buf + len, sizeof(smi->buf) - len,
 942                         "Port %d MIB counters\n",
 943                         val->port_vlan);
 944
 945         for (i = 0; i < ARRAY_SIZE(rtl8366s_mib_counters); ++i) {
 946                 len += snprintf(buf + len, sizeof(smi->buf) - len,
 947                                 "%-36s: ", rtl8366s_mib_counters[i].name);
 948                 if (!rtl8366_get_mib_counter(smi, i, val->port_vlan, &counter))
 949                         len += snprintf(buf + len, sizeof(smi->buf) - len,
 950                                         "%llu\n", counter);
 951                 else
 952                         len += snprintf(buf + len, sizeof(smi->buf) - len,
 953                                         "%s\n", "error");
 954         }
 955
 956         val->value.s = buf;
 957         val->len = len;
 958         return 0;
 959 }
 960
 961 static int rtl8366s_sw_get_vlan_ports(struct switch_dev *dev,
 962                                       struct switch_val *val)
 963 {
 964         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 965         struct switch_port *port;
 966         struct rtl8366_vlan_4k vlan4k;
 967         int i;
 968
 969         if (val->port_vlan == 0 || val->port_vlan >= RTL8366S_NUM_VLANS)
 970                 return -EINVAL;
 971
 972         rtl8366s_get_vlan_4k(smi, val->port_vlan, &vlan4k);
 973
 974         port = &val->value.ports[0];
 975         val->len = 0;
 976         for (i = 0; i < RTL8366S_NUM_PORTS; i++) {
 977                 if (!(vlan4k.member & BIT(i)))
 978                         continue;
 979
 980                 port->id = i;
 981                 port->flags = (vlan4k.untag & BIT(i)) ?
 982                                         0 : BIT(SWITCH_PORT_FLAG_TAGGED);
 983                 val->len++;
 984                 port++;
 985         }
 986         return 0;
 987 }
 988
 989 static int rtl8366s_sw_set_vlan_ports(struct switch_dev *dev,
 990                                       struct switch_val *val)
 991 {
 992         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
 993         struct switch_port *port;
 994         u32 member = 0;
 995         u32 untag = 0;
 996         int i;
 997
 998         if (val->port_vlan == 0 || val->port_vlan >= RTL8366S_NUM_VLANS)
 999                 return -EINVAL;
1000
1001         port = &val->value.ports[0];
1002         for (i = 0; i < val->len; i++, port++) {
1003                 member |= BIT(port->id);
1004
1005                 if (!(port->flags & BIT(SWITCH_PORT_FLAG_TAGGED)))
1006                         untag |= BIT(port->id);
1007         }
1008
1009         return rtl8366_set_vlan(smi, val->port_vlan, member, untag, 0);
1010 }
1011
1012 static int rtl8366s_sw_get_port_pvid(struct switch_dev *dev, int port, int *val)
1013 {
1014         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1015         return rtl8366_get_pvid(smi, port, val);
1016 }
1017
1018 static int rtl8366s_sw_set_port_pvid(struct switch_dev *dev, int port, int val)
1019 {
1020         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1021         return rtl8366_set_pvid(smi, port, val);
1022 }
1023
1024 static int rtl8366s_sw_reset_switch(struct switch_dev *dev)
1025 {
1026         struct rtl8366_smi *smi = sw_to_rtl8366_smi(dev);
1027         int err;
1028
1029         err = rtl8366s_reset_chip(smi);
1030         if (err)
1031                 return err;
1032
1033         err = rtl8366s_hw_init(smi);
1034         if (err)
1035                 return err;
1036
1037         return rtl8366_reset_vlan(smi);
1038 }
1039
1040 static struct switch_attr rtl8366s_globals[] = {
1041         {
1042                 .type = SWITCH_TYPE_INT,
1043                 .name = "enable_learning",
1044                 .description = "Enable learning, enable aging",
1045                 .set = rtl8366s_sw_set_learning_enable,
1046                 .get = rtl8366s_sw_get_learning_enable,
1047                 .max = 1,
1048         }, {
1049                 .type = SWITCH_TYPE_INT,
1050                 .name = "enable_vlan",
1051                 .description = "Enable VLAN mode",
1052                 .set = rtl8366s_sw_set_vlan_enable,
1053                 .get = rtl8366s_sw_get_vlan_enable,
1054                 .max = 1,
1055                 .ofs = 1
1056         }, {
1057                 .type = SWITCH_TYPE_INT,
1058                 .name = "enable_vlan4k",
1059                 .description = "Enable VLAN 4K mode",
1060                 .set = rtl8366s_sw_set_vlan_enable,
1061                 .get = rtl8366s_sw_get_vlan_enable,
1062                 .max = 1,
1063                 .ofs = 2
1064         }, {
1065                 .type = SWITCH_TYPE_INT,
1066                 .name = "reset_mibs",
1067                 .description = "Reset all MIB counters",
1068                 .set = rtl8366s_sw_reset_mibs,
1069                 .get = NULL,
1070                 .max = 1
1071         }, {
1072                 .type = SWITCH_TYPE_INT,
1073                 .name = "blinkrate",
1074                 .description = "Get/Set LED blinking rate (0 = 43ms, 1 = 84ms,"
1075                 " 2 = 120ms, 3 = 170ms, 4 = 340ms, 5 = 670ms)",
1076                 .set = rtl8366s_sw_set_blinkrate,
1077                 .get = rtl8366s_sw_get_blinkrate,
1078                 .max = 5
1079         },
1080 };
1081
1082 static struct switch_attr rtl8366s_port[] = {
1083         {
1084                 .type = SWITCH_TYPE_STRING,
1085                 .name = "link",
1086                 .description = "Get port link information",
1087                 .max = 1,
1088                 .set = NULL,
1089                 .get = rtl8366s_sw_get_port_link,
1090         }, {
1091                 .type = SWITCH_TYPE_INT,
1092                 .name = "reset_mib",
1093                 .description = "Reset single port MIB counters",
1094                 .max = 1,
1095                 .set = rtl8366s_sw_reset_port_mibs,
1096                 .get = NULL,
1097         }, {
1098                 .type = SWITCH_TYPE_STRING,
1099                 .name = "mib",
1100                 .description = "Get MIB counters for port",
1101                 .max = 33,
1102                 .set = NULL,
1103                 .get = rtl8366s_sw_get_port_mib,
1104         }, {
1105                 .type = SWITCH_TYPE_INT,
1106                 .name = "led",
1107                 .description = "Get/Set port group (0 - 3) led mode (0 - 15)",
1108                 .max = 15,
1109                 .set = rtl8366s_sw_set_port_led,
1110                 .get = rtl8366s_sw_get_port_led,
1111         },
1112 };
1113
1114 static struct switch_attr rtl8366s_vlan[] = {
1115         {
1116                 .type = SWITCH_TYPE_STRING,
1117                 .name = "info",
1118                 .description = "Get vlan information",
1119                 .max = 1,
1120                 .set = NULL,
1121                 .get = rtl8366s_sw_get_vlan_info,
1122         },
1123 };
1124
1125 /* template */
1126 static struct switch_dev rtl8366_switch_dev = {
1127         .name = "RTL8366S",
1128         .cpu_port = RTL8366S_PORT_NUM_CPU,
1129         .ports = RTL8366S_NUM_PORTS,
1130         .vlans = RTL8366S_NUM_VLANS,
1131         .attr_global = {
1132                 .attr = rtl8366s_globals,
1133                 .n_attr = ARRAY_SIZE(rtl8366s_globals),
1134         },
1135         .attr_port = {
1136                 .attr = rtl8366s_port,
1137                 .n_attr = ARRAY_SIZE(rtl8366s_port),
1138         },
1139         .attr_vlan = {
1140                 .attr = rtl8366s_vlan,
1141                 .n_attr = ARRAY_SIZE(rtl8366s_vlan),
1142         },
1143
1144         .get_vlan_ports = rtl8366s_sw_get_vlan_ports,
1145         .set_vlan_ports = rtl8366s_sw_set_vlan_ports,
1146         .get_port_pvid = rtl8366s_sw_get_port_pvid,
1147         .set_port_pvid = rtl8366s_sw_set_port_pvid,
1148         .reset_switch = rtl8366s_sw_reset_switch,
1149 };
1150
1151 static int rtl8366s_switch_init(struct rtl8366s *rtl)
1152 {
1153         struct switch_dev *dev = &rtl->dev;
1154         int err;
1155
1156         memcpy(dev, &rtl8366_switch_dev, sizeof(struct switch_dev));
1157         dev->priv = rtl;
1158         dev->devname = dev_name(rtl->parent);
1159
1160         err = register_switch(dev, NULL);
1161         if (err)
1162                 dev_err(rtl->parent, "switch registration failed\n");
1163
1164         return err;
1165 }
1166
1167 static void rtl8366s_switch_cleanup(struct rtl8366s *rtl)
1168 {
1169         unregister_switch(&rtl->dev);
1170 }
1171
1172 static int rtl8366s_mii_read(struct mii_bus *bus, int addr, int reg)
1173 {
1174         struct rtl8366_smi *smi = bus->priv;
1175         u32 val = 0;
1176         int err;
1177
1178         err = rtl8366s_read_phy_reg(smi, addr, 0, reg, &val);
1179         if (err)
1180                 return 0xffff;
1181
1182         return val;
1183 }
1184
1185 static int rtl8366s_mii_write(struct mii_bus *bus, int addr, int reg, u16 val)
1186 {
1187         struct rtl8366_smi *smi = bus->priv;
1188         u32 t;
1189         int err;
1190
1191         err = rtl8366s_write_phy_reg(smi, addr, 0, reg, val);
1192         /* flush write */
1193         (void) rtl8366s_read_phy_reg(smi, addr, 0, reg, &t);
1194
1195         return err;
1196 }
1197
1198 static int rtl8366s_mii_bus_match(struct mii_bus *bus)
1199 {
1200         return (bus->read == rtl8366s_mii_read &&
1201                 bus->write == rtl8366s_mii_write);
1202 }
1203
1204 static int rtl8366s_setup(struct rtl8366s *rtl)
1205 {
1206         struct rtl8366_smi *smi = &rtl->smi;
1207         int ret;
1208
1209         ret = rtl8366s_reset_chip(smi);
1210         if (ret)
1211                 return ret;
1212
1213         ret = rtl8366s_hw_init(smi);
1214         return ret;
1215 }
1216
1217 static int rtl8366s_detect(struct rtl8366_smi *smi)
1218 {
1219         u32 chip_id = 0;
1220         u32 chip_ver = 0;
1221         int ret;
1222
1223         ret = rtl8366_smi_read_reg(smi, RTL8366S_CHIP_ID_REG, &chip_id);
1224         if (ret) {
1225                 dev_err(smi->parent, "unable to read chip id\n");
1226                 return ret;
1227         }
1228
1229         switch (chip_id) {
1230         case RTL8366S_CHIP_ID_8366:
1231                 break;
1232         default:
1233                 dev_err(smi->parent, "unknown chip id (%04x)\n", chip_id);
1234                 return -ENODEV;
1235         }
1236
1237         ret = rtl8366_smi_read_reg(smi, RTL8366S_CHIP_VERSION_CTRL_REG,
1238                                    &chip_ver);
1239         if (ret) {
1240                 dev_err(smi->parent, "unable to read chip version\n");
1241                 return ret;
1242         }
1243
1244         dev_info(smi->parent, "RTL%04x ver. %u chip found\n",
1245                  chip_id, chip_ver & RTL8366S_CHIP_VERSION_MASK);
1246
1247         return 0;
1248 }
1249
1250 static struct rtl8366_smi_ops rtl8366s_smi_ops = {
1251         .detect         = rtl8366s_detect,
1252         .mii_read       = rtl8366s_mii_read,
1253         .mii_write      = rtl8366s_mii_write,
1254
1255         .get_vlan_mc    = rtl8366s_get_vlan_mc,
1256         .set_vlan_mc    = rtl8366s_set_vlan_mc,
1257         .get_vlan_4k    = rtl8366s_get_vlan_4k,
1258         .set_vlan_4k    = rtl8366s_set_vlan_4k,
1259         .get_mc_index   = rtl8366s_get_mc_index,
1260         .set_mc_index   = rtl8366s_set_mc_index,
1261         .get_mib_counter = rtl8366_get_mib_counter,
1262 };
1263
1264 static int __init rtl8366s_probe(struct platform_device *pdev)
1265 {
1266         static int rtl8366_smi_version_printed;
1267         struct rtl8366s_platform_data *pdata;
1268         struct rtl8366s *rtl;
1269         struct rtl8366_smi *smi;
1270         int err;
1271
1272         if (!rtl8366_smi_version_printed++)
1273                 printk(KERN_NOTICE RTL8366S_DRIVER_DESC
1274                        " version " RTL8366S_DRIVER_VER"\n");
1275
1276         pdata = pdev->dev.platform_data;
1277         if (!pdata) {
1278                 dev_err(&pdev->dev, "no platform data specified\n");
1279                 err = -EINVAL;
1280                 goto err_out;
1281         }
1282
1283         rtl = kzalloc(sizeof(*rtl), GFP_KERNEL);
1284         if (!rtl) {
1285                 dev_err(&pdev->dev, "no memory for private data\n");
1286                 err = -ENOMEM;
1287                 goto err_out;
1288         }
1289
1290         rtl->parent = &pdev->dev;
1291
1292         smi = &rtl->smi;
1293         smi->parent = &pdev->dev;
1294         smi->gpio_sda = pdata->gpio_sda;
1295         smi->gpio_sck = pdata->gpio_sck;
1296         smi->ops = &rtl8366s_smi_ops;
1297         smi->cpu_port = RTL8366S_PORT_NUM_CPU;
1298         smi->num_ports = RTL8366S_NUM_PORTS;
1299         smi->num_vlan_mc = RTL8366S_NUM_VLANS;
1300         smi->mib_counters = rtl8366s_mib_counters;
1301         smi->num_mib_counters = ARRAY_SIZE(rtl8366s_mib_counters);
1302
1303         err = rtl8366_smi_init(smi);
1304         if (err)
1305                 goto err_free_rtl;
1306
1307         platform_set_drvdata(pdev, rtl);
1308
1309         err = rtl8366s_setup(rtl);
1310         if (err)
1311                 goto err_clear_drvdata;
1312
1313         err = rtl8366s_switch_init(rtl);
1314         if (err)
1315                 goto err_clear_drvdata;
1316
1317         return 0;
1318
1319  err_clear_drvdata:
1320         platform_set_drvdata(pdev, NULL);
1321         rtl8366_smi_cleanup(smi);
1322  err_free_rtl:
1323         kfree(rtl);
1324  err_out:
1325         return err;
1326 }
1327
1328 static int rtl8366s_phy_config_init(struct phy_device *phydev)
1329 {
1330         if (!rtl8366s_mii_bus_match(phydev->bus))
1331                 return -EINVAL;
1332
1333         return 0;
1334 }
1335
1336 static int rtl8366s_phy_config_aneg(struct phy_device *phydev)
1337 {
1338         return 0;
1339 }
1340
1341 static struct phy_driver rtl8366s_phy_driver = {
1342         .phy_id         = 0x001cc960,
1343         .name           = "Realtek RTL8366S",
1344         .phy_id_mask    = 0x1ffffff0,
1345         .features       = PHY_GBIT_FEATURES,
1346         .config_aneg    = rtl8366s_phy_config_aneg,
1347         .config_init    = rtl8366s_phy_config_init,
1348         .read_status    = genphy_read_status,
1349         .driver         = {
1350                 .owner = THIS_MODULE,
1351         },
1352 };
1353
1354 static int __devexit rtl8366s_remove(struct platform_device *pdev)
1355 {
1356         struct rtl8366s *rtl = platform_get_drvdata(pdev);
1357
1358         if (rtl) {
1359                 rtl8366s_switch_cleanup(rtl);
1360                 platform_set_drvdata(pdev, NULL);
1361                 rtl8366_smi_cleanup(&rtl->smi);
1362                 kfree(rtl);
1363         }
1364
1365         return 0;
1366 }
1367
1368 static struct platform_driver rtl8366s_driver = {
1369         .driver = {
1370                 .name           = RTL8366S_DRIVER_NAME,
1371                 .owner          = THIS_MODULE,
1372         },
1373         .probe          = rtl8366s_probe,
1374         .remove         = __devexit_p(rtl8366s_remove),
1375 };
1376
1377 static int __init rtl8366s_module_init(void)
1378 {
1379         int ret;
1380         ret = platform_driver_register(&rtl8366s_driver);
1381         if (ret)
1382                 return ret;
1383
1384         ret = phy_driver_register(&rtl8366s_phy_driver);
1385         if (ret)
1386                 goto err_platform_unregister;
1387
1388         return 0;
1389
1390  err_platform_unregister:
1391         platform_driver_unregister(&rtl8366s_driver);
1392         return ret;
1393 }
1394 module_init(rtl8366s_module_init);
1395
1396 static void __exit rtl8366s_module_exit(void)
1397 {
1398         phy_driver_unregister(&rtl8366s_phy_driver);
1399         platform_driver_unregister(&rtl8366s_driver);
1400 }
1401 module_exit(rtl8366s_module_exit);
1402
1403 MODULE_DESCRIPTION(RTL8366S_DRIVER_DESC);
1404 MODULE_VERSION(RTL8366S_DRIVER_VER);
1405 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
1406 MODULE_AUTHOR("Antti Seppälä <a.seppala@gmail.com>");
1407 MODULE_LICENSE("GPL v2");
1408 MODULE_ALIAS("platform:" RTL8366S_DRIVER_NAME);