drivers/net/dsa/mt7530.h

   1 /*
   2  * Copyright (C) 2017 Sean Wang <sean.wang@mediatek.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License version 2 as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #ifndef __MT7530_H
  15 #define __MT7530_H
  16
  17 #define MT7530_NUM_PORTS                7
  18 #define MT7530_CPU_PORT                 6
  19 #define MT7530_NUM_FDB_RECORDS          2048
  20
  21 #define NUM_TRGMII_CTRL                 5
  22
  23 #define TRGMII_BASE(x)                  (0x10000 + (x))
  24
  25 /* Registers to ethsys access */
  26 #define ETHSYS_CLKCFG0                  0x2c
  27 #define  ETHSYS_TRGMII_CLK_SEL362_5     BIT(11)
  28
  29 #define SYSC_REG_RSTCTRL                0x34
  30 #define  RESET_MCM                      BIT(2)
  31
  32 /* Registers to mac forward control for unknown frames */
  33 #define MT7530_MFC                      0x10
  34 #define  BC_FFP(x)                      (((x) & 0xff) << 24)
  35 #define  UNM_FFP(x)                     (((x) & 0xff) << 16)
  36 #define  UNU_FFP(x)                     (((x) & 0xff) << 8)
  37 #define  UNU_FFP_MASK                   UNU_FFP(~0)
  38
  39 /* Registers for address table access */
  40 #define MT7530_ATA1                     0x74
  41 #define  STATIC_EMP                     0
  42 #define  STATIC_ENT                     3
  43 #define MT7530_ATA2                     0x78
  44
  45 /* Register for address table write data */
  46 #define MT7530_ATWD                     0x7c
  47
  48 /* Register for address table control */
  49 #define MT7530_ATC                      0x80
  50 #define  ATC_HASH                       (((x) & 0xfff) << 16)
  51 #define  ATC_BUSY                       BIT(15)
  52 #define  ATC_SRCH_END                   BIT(14)
  53 #define  ATC_SRCH_HIT                   BIT(13)
  54 #define  ATC_INVALID                    BIT(12)
  55 #define  ATC_MAT(x)                     (((x) & 0xf) << 8)
  56 #define  ATC_MAT_MACTAB                 ATC_MAT(0)
  57
  58 enum mt7530_fdb_cmd {
  59         MT7530_FDB_READ = 0,
  60         MT7530_FDB_WRITE = 1,
  61         MT7530_FDB_FLUSH = 2,
  62         MT7530_FDB_START = 4,
  63         MT7530_FDB_NEXT = 5,
  64 };
  65
  66 /* Registers for table search read address */
  67 #define MT7530_TSRA1                    0x84
  68 #define  MAC_BYTE_0                     24
  69 #define  MAC_BYTE_1                     16
  70 #define  MAC_BYTE_2                     8
  71 #define  MAC_BYTE_3                     0
  72 #define  MAC_BYTE_MASK                  0xff
  73
  74 #define MT7530_TSRA2                    0x88
  75 #define  MAC_BYTE_4                     24
  76 #define  MAC_BYTE_5                     16
  77 #define  CVID                           0
  78 #define  CVID_MASK                      0xfff
  79
  80 #define MT7530_ATRD                     0x8C
  81 #define  AGE_TIMER                      24
  82 #define  AGE_TIMER_MASK                 0xff
  83 #define  PORT_MAP                       4
  84 #define  PORT_MAP_MASK                  0xff
  85 #define  ENT_STATUS                     2
  86 #define  ENT_STATUS_MASK                0x3
  87
  88 /* Register for vlan table control */
  89 #define MT7530_VTCR                     0x90
  90 #define  VTCR_BUSY                      BIT(31)
  91 #define  VTCR_FUNC                      (((x) & 0xf) << 12)
  92 #define  VTCR_FUNC_RD_VID               0x1
  93 #define  VTCR_FUNC_WR_VID               0x2
  94 #define  VTCR_FUNC_INV_VID              0x3
  95 #define  VTCR_FUNC_VAL_VID              0x4
  96 #define  VTCR_VID                       ((x) & 0xfff)
  97
  98 /* Register for setup vlan and acl write data */
  99 #define MT7530_VAWD1                    0x94
 100 #define  PORT_STAG                      BIT(31)
 101 #define  IVL_MAC                        BIT(30)
 102 #define  PORT_MEM(x)                    (((x) & 0xff) << 16)
 103 #define  VALID                          BIT(1)
 104
 105 #define MT7530_VAWD2                    0x98
 106
 107 /* Register for port STP state control */
 108 #define MT7530_SSP_P(x)                 (0x2000 + ((x) * 0x100))
 109 #define  FID_PST(x)                     ((x) & 0x3)
 110 #define  FID_PST_MASK                   FID_PST(0x3)
 111
 112 enum mt7530_stp_state {
 113         MT7530_STP_DISABLED = 0,
 114         MT7530_STP_BLOCKING = 1,
 115         MT7530_STP_LISTENING = 1,
 116         MT7530_STP_LEARNING = 2,
 117         MT7530_STP_FORWARDING  = 3
 118 };
 119
 120 /* Register for port control */
 121 #define MT7530_PCR_P(x)                 (0x2004 + ((x) * 0x100))
 122 #define  PORT_VLAN(x)                   ((x) & 0x3)
 123 #define  PCR_MATRIX(x)                  (((x) & 0xff) << 16)
 124 #define  PORT_PRI(x)                    (((x) & 0x7) << 24)
 125 #define  EG_TAG(x)                      (((x) & 0x3) << 28)
 126 #define  PCR_MATRIX_MASK                PCR_MATRIX(0xff)
 127 #define  PCR_MATRIX_CLR                 PCR_MATRIX(0)
 128
 129 /* Register for port security control */
 130 #define MT7530_PSC_P(x)                 (0x200c + ((x) * 0x100))
 131 #define  SA_DIS                         BIT(4)
 132
 133 /* Register for port vlan control */
 134 #define MT7530_PVC_P(x)                 (0x2010 + ((x) * 0x100))
 135 #define  PORT_SPEC_TAG                  BIT(5)
 136 #define  VLAN_ATTR(x)                   (((x) & 0x3) << 6)
 137 #define  STAG_VPID                      (((x) & 0xffff) << 16)
 138
 139 /* Register for port port-and-protocol based vlan 1 control */
 140 #define MT7530_PPBV1_P(x)               (0x2014 + ((x) * 0x100))
 141
 142 /* Register for port MAC control register */
 143 #define MT7530_PMCR_P(x)                (0x3000 + ((x) * 0x100))
 144 #define  PMCR_IFG_XMIT(x)               (((x) & 0x3) << 18)
 145 #define  PMCR_MAC_MODE                  BIT(16)
 146 #define  PMCR_FORCE_MODE                BIT(15)
 147 #define  PMCR_TX_EN                     BIT(14)
 148 #define  PMCR_RX_EN                     BIT(13)
 149 #define  PMCR_BACKOFF_EN                BIT(9)
 150 #define  PMCR_BACKPR_EN                 BIT(8)
 151 #define  PMCR_TX_FC_EN                  BIT(5)
 152 #define  PMCR_RX_FC_EN                  BIT(4)
 153 #define  PMCR_FORCE_SPEED_1000          BIT(3)
 154 #define  PMCR_FORCE_FDX                 BIT(1)
 155 #define  PMCR_FORCE_LNK                 BIT(0)
 156 #define  PMCR_COMMON_LINK               (PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | \
 157                                          PMCR_BACKOFF_EN | PMCR_BACKPR_EN | \
 158                                          PMCR_TX_EN | PMCR_RX_EN | \
 159                                          PMCR_TX_FC_EN | PMCR_RX_FC_EN)
 160 #define  PMCR_CPUP_LINK                 (PMCR_COMMON_LINK | PMCR_FORCE_MODE | \
 161                                          PMCR_FORCE_SPEED_1000 | \
 162                                          PMCR_FORCE_FDX | \
 163                                          PMCR_FORCE_LNK)
 164 #define  PMCR_USERP_LINK                PMCR_COMMON_LINK
 165 #define  PMCR_FIXED_LINK                (PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | \
 166                                          PMCR_FORCE_MODE | PMCR_TX_EN | \
 167                                          PMCR_RX_EN | PMCR_BACKPR_EN | \
 168                                          PMCR_BACKOFF_EN | \
 169                                          PMCR_FORCE_SPEED_1000 | \
 170                                          PMCR_FORCE_FDX | \
 171                                          PMCR_FORCE_LNK)
 172 #define PMCR_FIXED_LINK_FC              (PMCR_FIXED_LINK | \
 173                                          PMCR_TX_FC_EN | PMCR_RX_FC_EN)
 174
 175 #define MT7530_PMSR_P(x)                (0x3008 + (x) * 0x100)
 176
 177 /* Register for MIB */
 178 #define MT7530_PORT_MIB_COUNTER(x)      (0x4000 + (x) * 0x100)
 179 #define MT7530_MIB_CCR                  0x4fe0
 180 #define  CCR_MIB_ENABLE                 BIT(31)
 181 #define  CCR_RX_OCT_CNT_GOOD            BIT(7)
 182 #define  CCR_RX_OCT_CNT_BAD             BIT(6)
 183 #define  CCR_TX_OCT_CNT_GOOD            BIT(5)
 184 #define  CCR_TX_OCT_CNT_BAD             BIT(4)
 185 #define  CCR_MIB_FLUSH                  (CCR_RX_OCT_CNT_GOOD | \
 186                                          CCR_RX_OCT_CNT_BAD | \
 187                                          CCR_TX_OCT_CNT_GOOD | \
 188                                          CCR_TX_OCT_CNT_BAD)
 189 #define  CCR_MIB_ACTIVATE               (CCR_MIB_ENABLE | \
 190                                          CCR_RX_OCT_CNT_GOOD | \
 191                                          CCR_RX_OCT_CNT_BAD | \
 192                                          CCR_TX_OCT_CNT_GOOD | \
 193                                          CCR_TX_OCT_CNT_BAD)
 194 /* Register for system reset */
 195 #define MT7530_SYS_CTRL                 0x7000
 196 #define  SYS_CTRL_PHY_RST               BIT(2)
 197 #define  SYS_CTRL_SW_RST                BIT(1)
 198 #define  SYS_CTRL_REG_RST               BIT(0)
 199
 200 /* Register for hw trap status */
 201 #define MT7530_HWTRAP                   0x7800
 202
 203 /* Register for hw trap modification */
 204 #define MT7530_MHWTRAP                  0x7804
 205 #define  MHWTRAP_MANUAL                 BIT(16)
 206 #define  MHWTRAP_P5_MAC_SEL             BIT(13)
 207 #define  MHWTRAP_P6_DIS                 BIT(8)
 208 #define  MHWTRAP_P5_RGMII_MODE          BIT(7)
 209 #define  MHWTRAP_P5_DIS                 BIT(6)
 210 #define  MHWTRAP_PHY_ACCESS             BIT(5)
 211
 212 /* Register for TOP signal control */
 213 #define MT7530_TOP_SIG_CTRL             0x7808
 214 #define  TOP_SIG_CTRL_NORMAL            (BIT(17) | BIT(16))
 215
 216 #define MT7530_IO_DRV_CR                0x7810
 217 #define  P5_IO_CLK_DRV(x)               ((x) & 0x3)
 218 #define  P5_IO_DATA_DRV(x)              (((x) & 0x3) << 4)
 219
 220 #define MT7530_P6ECR                    0x7830
 221 #define  P6_INTF_MODE_MASK              0x3
 222 #define  P6_INTF_MODE(x)                ((x) & 0x3)
 223
 224 /* Registers for TRGMII on the both side */
 225 #define MT7530_TRGMII_RCK_CTRL          0x7a00
 226 #define GSW_TRGMII_RCK_CTRL             0x300
 227 #define  RX_RST                         BIT(31)
 228 #define  RXC_DQSISEL                    BIT(30)
 229 #define  DQSI1_TAP_MASK                 (0x7f << 8)
 230 #define  DQSI0_TAP_MASK                 0x7f
 231 #define  DQSI1_TAP(x)                   (((x) & 0x7f) << 8)
 232 #define  DQSI0_TAP(x)                   ((x) & 0x7f)
 233
 234 #define MT7530_TRGMII_RCK_RTT           0x7a04
 235 #define GSW_TRGMII_RCK_RTT              0x304
 236 #define  DQS1_GATE                      BIT(31)
 237 #define  DQS0_GATE                      BIT(30)
 238
 239 #define MT7530_TRGMII_RD(x)             (0x7a10 + (x) * 8)
 240 #define GSW_TRGMII_RD(x)                (0x310 + (x) * 8)
 241 #define  BSLIP_EN                       BIT(31)
 242 #define  EDGE_CHK                       BIT(30)
 243 #define  RD_TAP_MASK                    0x7f
 244 #define  RD_TAP(x)                      ((x) & 0x7f)
 245
 246 #define GSW_TRGMII_TXCTRL               0x340
 247 #define MT7530_TRGMII_TXCTRL            0x7a40
 248 #define  TRAIN_TXEN                     BIT(31)
 249 #define  TXC_INV                        BIT(30)
 250 #define  TX_RST                         BIT(28)
 251
 252 #define MT7530_TRGMII_TD_ODT(i)         (0x7a54 + 8 * (i))
 253 #define GSW_TRGMII_TD_ODT(i)            (0x354 + 8 * (i))
 254 #define  TD_DM_DRVP(x)                  ((x) & 0xf)
 255 #define  TD_DM_DRVN(x)                  (((x) & 0xf) << 4)
 256
 257 #define GSW_INTF_MODE                   0x390
 258 #define  INTF_MODE_TRGMII               BIT(1)
 259
 260 #define MT7530_TRGMII_TCK_CTRL          0x7a78
 261 #define  TCK_TAP(x)                     (((x) & 0xf) << 8)
 262
 263 #define MT7530_P5RGMIIRXCR              0x7b00
 264 #define  CSR_RGMII_EDGE_ALIGN           BIT(8)
 265 #define  CSR_RGMII_RXC_0DEG_CFG(x)      ((x) & 0xf)
 266
 267 #define MT7530_P5RGMIITXCR              0x7b04
 268 #define  CSR_RGMII_TXC_CFG(x)           ((x) & 0x1f)
 269
 270 #define MT7530_CREV                     0x7ffc
 271 #define  CHIP_NAME_SHIFT                16
 272 #define  MT7530_ID                      0x7530
 273
 274 /* Registers for core PLL access through mmd indirect */
 275 #define CORE_PLL_GROUP2                 0x401
 276 #define  RG_SYSPLL_EN_NORMAL            BIT(15)
 277 #define  RG_SYSPLL_VODEN                BIT(14)
 278 #define  RG_SYSPLL_LF                   BIT(13)
 279 #define  RG_SYSPLL_RST_DLY(x)           (((x) & 0x3) << 12)
 280 #define  RG_SYSPLL_LVROD_EN             BIT(10)
 281 #define  RG_SYSPLL_PREDIV(x)            (((x) & 0x3) << 8)
 282 #define  RG_SYSPLL_POSDIV(x)            (((x) & 0x3) << 5)
 283 #define  RG_SYSPLL_FBKSEL               BIT(4)
 284 #define  RT_SYSPLL_EN_AFE_OLT           BIT(0)
 285
 286 #define CORE_PLL_GROUP4                 0x403
 287 #define  RG_SYSPLL_DDSFBK_EN            BIT(12)
 288 #define  RG_SYSPLL_BIAS_EN              BIT(11)
 289 #define  RG_SYSPLL_BIAS_LPF_EN          BIT(10)
 290
 291 #define CORE_PLL_GROUP5                 0x404
 292 #define  RG_LCDDS_PCW_NCPO1(x)          ((x) & 0xffff)
 293
 294 #define CORE_PLL_GROUP6                 0x405
 295 #define  RG_LCDDS_PCW_NCPO0(x)          ((x) & 0xffff)
 296
 297 #define CORE_PLL_GROUP7                 0x406
 298 #define  RG_LCDDS_PWDB                  BIT(15)
 299 #define  RG_LCDDS_ISO_EN                BIT(13)
 300 #define  RG_LCCDS_C(x)                  (((x) & 0x7) << 4)
 301 #define  RG_LCDDS_PCW_NCPO_CHG          BIT(3)
 302
 303 #define CORE_PLL_GROUP10                0x409
 304 #define  RG_LCDDS_SSC_DELTA(x)          ((x) & 0xfff)
 305
 306 #define CORE_PLL_GROUP11                0x40a
 307 #define  RG_LCDDS_SSC_DELTA1(x)         ((x) & 0xfff)
 308
 309 #define CORE_GSWPLL_GRP1                0x40d
 310 #define  RG_GSWPLL_PREDIV(x)            (((x) & 0x3) << 14)
 311 #define  RG_GSWPLL_POSDIV_200M(x)       (((x) & 0x3) << 12)
 312 #define  RG_GSWPLL_EN_PRE               BIT(11)
 313 #define  RG_GSWPLL_FBKSEL               BIT(10)
 314 #define  RG_GSWPLL_BP                   BIT(9)
 315 #define  RG_GSWPLL_BR                   BIT(8)
 316 #define  RG_GSWPLL_FBKDIV_200M(x)       ((x) & 0xff)
 317
 318 #define CORE_GSWPLL_GRP2                0x40e
 319 #define  RG_GSWPLL_POSDIV_500M(x)       (((x) & 0x3) << 8)
 320 #define  RG_GSWPLL_FBKDIV_500M(x)       ((x) & 0xff)
 321
 322 #define CORE_TRGMII_GSW_CLK_CG          0x410
 323 #define  REG_GSWCK_EN                   BIT(0)
 324 #define  REG_TRGMIICK_EN                BIT(1)
 325
 326 #define MIB_DESC(_s, _o, _n)    \
 327         {                       \
 328                 .size = (_s),   \
 329                 .offset = (_o), \
 330                 .name = (_n),   \
 331         }
 332
 333 struct mt7530_mib_desc {
 334         unsigned int size;
 335         unsigned int offset;
 336         const char *name;
 337 };
 338
 339 struct mt7530_fdb {
 340         u16 vid;
 341         u8 port_mask;
 342         u8 aging;
 343         u8 mac[6];
 344         bool noarp;
 345 };
 346
 347 struct mt7530_port {
 348         bool enable;
 349         u32 pm;
 350 };
 351
 352 /* struct mt7530_priv - This is the main data structure for holding the state
 353  *                      of the driver
 354  * @dev:                The device pointer
 355  * @ds:                 The pointer to the dsa core structure
 356  * @bus:                The bus used for the device and built-in PHY
 357  * @rstc:               The pointer to reset control used by MCM
 358  * @ethernet:           The regmap used for access TRGMII-based registers
 359  * @core_pwr:           The power supplied into the core
 360  * @io_pwr:             The power supplied into the I/O
 361  * @reset:              The descriptor for GPIO line tied to its reset pin
 362  * @mcm:                Flag for distinguishing if standalone IC or module
 363  *                      coupling
 364  * @ports:              Holding the state among ports
 365  * @reg_mutex:          The lock for protecting among process accessing
 366  *                      registers
 367  */
 368 struct mt7530_priv {
 369         struct device           *dev;
 370         struct dsa_switch       *ds;
 371         struct mii_bus          *bus;
 372         struct reset_control    *rstc;
 373         struct regmap           *ethernet;
 374         struct regulator        *core_pwr;
 375         struct regulator        *io_pwr;
 376         struct gpio_desc        *reset;
 377         bool                    mcm;
 378
 379         struct mt7530_port      ports[MT7530_NUM_PORTS];
 380         /* protect among processes for registers access*/
 381         struct mutex reg_mutex;
 382 };
 383
 384 struct mt7530_hw_stats {
 385         const char      *string;
 386         u16             reg;
 387         u8              sizeof_stat;
 388 };
 389
 390 struct mt7530_dummy_poll {
 391         struct mt7530_priv *priv;
 392         u32 reg;
 393 };
 394
 395 static inline void INIT_MT7530_DUMMY_POLL(struct mt7530_dummy_poll *p,
 396                                           struct mt7530_priv *priv, u32 reg)
 397 {
 398         p->priv = priv;
 399         p->reg = reg;
 400 }
 401
 402 #endif /* __MT7530_H */