drivers/net/dsa/sja1105/sja1105_spi.c

   1 // SPDX-License-Identifier: BSD-3-Clause
   2 /* Copyright (c) 2016-2018, NXP Semiconductors
   3  * Copyright (c) 2018, Sensor-Technik Wiedemann GmbH
   4  * Copyright (c) 2018-2019, Vladimir Oltean <olteanv@gmail.com>
   5  */
   6 #include <linux/spi/spi.h>
   7 #include <linux/packing.h>
   8 #include "sja1105.h"
   9
  10 #define SJA1105_SIZE_PORT_CTRL          4
  11 #define SJA1105_SIZE_RESET_CMD          4
  12 #define SJA1105_SIZE_SPI_MSG_HEADER     4
  13 #define SJA1105_SIZE_SPI_MSG_MAXLEN     (64 * 4)
  14 #define SJA1105_SIZE_SPI_TRANSFER_MAX   \
  15         (SJA1105_SIZE_SPI_MSG_HEADER + SJA1105_SIZE_SPI_MSG_MAXLEN)
  16
  17 static int sja1105_spi_transfer(const struct sja1105_private *priv,
  18                                 const void *tx, void *rx, int size)
  19 {
  20         struct spi_device *spi = priv->spidev;
  21         struct spi_transfer transfer = {
  22                 .tx_buf = tx,
  23                 .rx_buf = rx,
  24                 .len = size,
  25         };
  26         struct spi_message msg;
  27         int rc;
  28
  29         if (size > SJA1105_SIZE_SPI_TRANSFER_MAX) {
  30                 dev_err(&spi->dev, "SPI message (%d) longer than max of %d\n",
  31                         size, SJA1105_SIZE_SPI_TRANSFER_MAX);
  32                 return -EMSGSIZE;
  33         }
  34
  35         spi_message_init(&msg);
  36         spi_message_add_tail(&transfer, &msg);
  37
  38         rc = spi_sync(spi, &msg);
  39         if (rc < 0) {
  40                 dev_err(&spi->dev, "SPI transfer failed: %d\n", rc);
  41                 return rc;
  42         }
  43
  44         return rc;
  45 }
  46
  47 static void
  48 sja1105_spi_message_pack(void *buf, const struct sja1105_spi_message *msg)
  49 {
  50         const int size = SJA1105_SIZE_SPI_MSG_HEADER;
  51
  52         memset(buf, 0, size);
  53
  54         sja1105_pack(buf, &msg->access,     31, 31, size);
  55         sja1105_pack(buf, &msg->read_count, 30, 25, size);
  56         sja1105_pack(buf, &msg->address,    24,  4, size);
  57 }
  58
  59 /* If @rw is:
  60  * - SPI_WRITE: creates and sends an SPI write message at absolute
  61  *              address reg_addr, taking size_bytes from *packed_buf
  62  * - SPI_READ:  creates and sends an SPI read message from absolute
  63  *              address reg_addr, writing size_bytes into *packed_buf
  64  *
  65  * This function should only be called if it is priorly known that
  66  * @size_bytes is smaller than SIZE_SPI_MSG_MAXLEN. Larger packed buffers
  67  * are chunked in smaller pieces by sja1105_spi_send_long_packed_buf below.
  68  */
  69 int sja1105_spi_send_packed_buf(const struct sja1105_private *priv,
  70                                 sja1105_spi_rw_mode_t rw, u64 reg_addr,
  71                                 void *packed_buf, size_t size_bytes)
  72 {
  73         u8 tx_buf[SJA1105_SIZE_SPI_TRANSFER_MAX] = {0};
  74         u8 rx_buf[SJA1105_SIZE_SPI_TRANSFER_MAX] = {0};
  75         const int msg_len = size_bytes + SJA1105_SIZE_SPI_MSG_HEADER;
  76         struct sja1105_spi_message msg = {0};
  77         int rc;
  78
  79         if (msg_len > SJA1105_SIZE_SPI_TRANSFER_MAX)
  80                 return -ERANGE;
  81
  82         msg.access = rw;
  83         msg.address = reg_addr;
  84         if (rw == SPI_READ)
  85                 msg.read_count = size_bytes / 4;
  86
  87         sja1105_spi_message_pack(tx_buf, &msg);
  88
  89         if (rw == SPI_WRITE)
  90                 memcpy(tx_buf + SJA1105_SIZE_SPI_MSG_HEADER,
  91                        packed_buf, size_bytes);
  92
  93         rc = sja1105_spi_transfer(priv, tx_buf, rx_buf, msg_len);
  94         if (rc < 0)
  95                 return rc;
  96
  97         if (rw == SPI_READ)
  98                 memcpy(packed_buf, rx_buf + SJA1105_SIZE_SPI_MSG_HEADER,
  99                        size_bytes);
 100
 101         return 0;
 102 }
 103
 104 /* If @rw is:
 105  * - SPI_WRITE: creates and sends an SPI write message at absolute
 106  *              address reg_addr, taking size_bytes from *packed_buf
 107  * - SPI_READ:  creates and sends an SPI read message from absolute
 108  *              address reg_addr, writing size_bytes into *packed_buf
 109  *
 110  * The u64 *value is unpacked, meaning that it's stored in the native
 111  * CPU endianness and directly usable by software running on the core.
 112  *
 113  * This is a wrapper around sja1105_spi_send_packed_buf().
 114  */
 115 int sja1105_spi_send_int(const struct sja1105_private *priv,
 116                          sja1105_spi_rw_mode_t rw, u64 reg_addr,
 117                          u64 *value, u64 size_bytes)
 118 {
 119         u8 packed_buf[SJA1105_SIZE_SPI_MSG_MAXLEN];
 120         int rc;
 121
 122         if (size_bytes > SJA1105_SIZE_SPI_MSG_MAXLEN)
 123                 return -ERANGE;
 124
 125         if (rw == SPI_WRITE)
 126                 sja1105_pack(packed_buf, value, 8 * size_bytes - 1, 0,
 127                              size_bytes);
 128
 129         rc = sja1105_spi_send_packed_buf(priv, rw, reg_addr, packed_buf,
 130                                          size_bytes);
 131
 132         if (rw == SPI_READ)
 133                 sja1105_unpack(packed_buf, value, 8 * size_bytes - 1, 0,
 134                                size_bytes);
 135
 136         return rc;
 137 }
 138
 139 /* Should be used if a @packed_buf larger than SJA1105_SIZE_SPI_MSG_MAXLEN
 140  * must be sent/received. Splitting the buffer into chunks and assembling
 141  * those into SPI messages is done automatically by this function.
 142  */
 143 int sja1105_spi_send_long_packed_buf(const struct sja1105_private *priv,
 144                                      sja1105_spi_rw_mode_t rw, u64 base_addr,
 145                                      void *packed_buf, u64 buf_len)
 146 {
 147         struct chunk {
 148                 void *buf_ptr;
 149                 int len;
 150                 u64 spi_address;
 151         } chunk;
 152         int distance_to_end;
 153         int rc;
 154
 155         /* Initialize chunk */
 156         chunk.buf_ptr = packed_buf;
 157         chunk.spi_address = base_addr;
 158         chunk.len = min_t(int, buf_len, SJA1105_SIZE_SPI_MSG_MAXLEN);
 159
 160         while (chunk.len) {
 161                 rc = sja1105_spi_send_packed_buf(priv, rw, chunk.spi_address,
 162                                                  chunk.buf_ptr, chunk.len);
 163                 if (rc < 0)
 164                         return rc;
 165
 166                 chunk.buf_ptr += chunk.len;
 167                 chunk.spi_address += chunk.len / 4;
 168                 distance_to_end = (uintptr_t)(packed_buf + buf_len -
 169                                               chunk.buf_ptr);
 170                 chunk.len = min(distance_to_end, SJA1105_SIZE_SPI_MSG_MAXLEN);
 171         }
 172
 173         return 0;
 174 }
 175
 176 /* Back-ported structure from UM11040 Table 112.
 177  * Reset control register (addr. 100440h)
 178  * In the SJA1105 E/T, only warm_rst and cold_rst are
 179  * supported (exposed in UM10944 as rst_ctrl), but the bit
 180  * offsets of warm_rst and cold_rst are actually reversed.
 181  */
 182 struct sja1105_reset_cmd {
 183         u64 switch_rst;
 184         u64 cfg_rst;
 185         u64 car_rst;
 186         u64 otp_rst;
 187         u64 warm_rst;
 188         u64 cold_rst;
 189         u64 por_rst;
 190 };
 191
 192 static void
 193 sja1105et_reset_cmd_pack(void *buf, const struct sja1105_reset_cmd *reset)
 194 {
 195         const int size = SJA1105_SIZE_RESET_CMD;
 196
 197         memset(buf, 0, size);
 198
 199         sja1105_pack(buf, &reset->cold_rst, 3, 3, size);
 200         sja1105_pack(buf, &reset->warm_rst, 2, 2, size);
 201 }
 202
 203 static void
 204 sja1105pqrs_reset_cmd_pack(void *buf, const struct sja1105_reset_cmd *reset)
 205 {
 206         const int size = SJA1105_SIZE_RESET_CMD;
 207
 208         memset(buf, 0, size);
 209
 210         sja1105_pack(buf, &reset->switch_rst, 8, 8, size);
 211         sja1105_pack(buf, &reset->cfg_rst,    7, 7, size);
 212         sja1105_pack(buf, &reset->car_rst,    5, 5, size);
 213         sja1105_pack(buf, &reset->otp_rst,    4, 4, size);
 214         sja1105_pack(buf, &reset->warm_rst,   3, 3, size);
 215         sja1105_pack(buf, &reset->cold_rst,   2, 2, size);
 216         sja1105_pack(buf, &reset->por_rst,    1, 1, size);
 217 }
 218
 219 static int sja1105et_reset_cmd(const void *ctx, const void *data)
 220 {
 221         const struct sja1105_private *priv = ctx;
 222         const struct sja1105_reset_cmd *reset = data;
 223         const struct sja1105_regs *regs = priv->info->regs;
 224         struct device *dev = priv->ds->dev;
 225         u8 packed_buf[SJA1105_SIZE_RESET_CMD];
 226
 227         if (reset->switch_rst ||
 228             reset->cfg_rst ||
 229             reset->car_rst ||
 230             reset->otp_rst ||
 231             reset->por_rst) {
 232                 dev_err(dev, "Only warm and cold reset is supported "
 233                         "for SJA1105 E/T!\n");
 234                 return -EINVAL;
 235         }
 236
 237         if (reset->warm_rst)
 238                 dev_dbg(dev, "Warm reset requested\n");
 239         if (reset->cold_rst)
 240                 dev_dbg(dev, "Cold reset requested\n");
 241
 242         sja1105et_reset_cmd_pack(packed_buf, reset);
 243
 244         return sja1105_spi_send_packed_buf(priv, SPI_WRITE, regs->rgu,
 245                                            packed_buf, SJA1105_SIZE_RESET_CMD);
 246 }
 247
 248 static int sja1105pqrs_reset_cmd(const void *ctx, const void *data)
 249 {
 250         const struct sja1105_private *priv = ctx;
 251         const struct sja1105_reset_cmd *reset = data;
 252         const struct sja1105_regs *regs = priv->info->regs;
 253         struct device *dev = priv->ds->dev;
 254         u8 packed_buf[SJA1105_SIZE_RESET_CMD];
 255
 256         if (reset->switch_rst)
 257                 dev_dbg(dev, "Main reset for all functional modules requested\n");
 258         if (reset->cfg_rst)
 259                 dev_dbg(dev, "Chip configuration reset requested\n");
 260         if (reset->car_rst)
 261                 dev_dbg(dev, "Clock and reset control logic reset requested\n");
 262         if (reset->otp_rst)
 263                 dev_dbg(dev, "OTP read cycle for reading product "
 264                         "config settings requested\n");
 265         if (reset->warm_rst)
 266                 dev_dbg(dev, "Warm reset requested\n");
 267         if (reset->cold_rst)
 268                 dev_dbg(dev, "Cold reset requested\n");
 269         if (reset->por_rst)
 270                 dev_dbg(dev, "Power-on reset requested\n");
 271
 272         sja1105pqrs_reset_cmd_pack(packed_buf, reset);
 273
 274         return sja1105_spi_send_packed_buf(priv, SPI_WRITE, regs->rgu,
 275                                            packed_buf, SJA1105_SIZE_RESET_CMD);
 276 }
 277
 278 static int sja1105_cold_reset(const struct sja1105_private *priv)
 279 {
 280         struct sja1105_reset_cmd reset = {0};
 281
 282         reset.cold_rst = 1;
 283         return priv->info->reset_cmd(priv, &reset);
 284 }
 285
 286 int sja1105_inhibit_tx(const struct sja1105_private *priv,
 287                        unsigned long port_bitmap, bool tx_inhibited)
 288 {
 289         const struct sja1105_regs *regs = priv->info->regs;
 290         u64 inhibit_cmd;
 291         int rc;
 292
 293         rc = sja1105_spi_send_int(priv, SPI_READ, regs->port_control,
 294                                   &inhibit_cmd, SJA1105_SIZE_PORT_CTRL);
 295         if (rc < 0)
 296                 return rc;
 297
 298         if (tx_inhibited)
 299                 inhibit_cmd |= port_bitmap;
 300         else
 301                 inhibit_cmd &= ~port_bitmap;
 302
 303         return sja1105_spi_send_int(priv, SPI_WRITE, regs->port_control,
 304                                     &inhibit_cmd, SJA1105_SIZE_PORT_CTRL);
 305 }
 306
 307 struct sja1105_status {
 308         u64 configs;
 309         u64 crcchkl;
 310         u64 ids;
 311         u64 crcchkg;
 312 };
 313
 314 /* This is not reading the entire General Status area, which is also
 315  * divergent between E/T and P/Q/R/S, but only the relevant bits for
 316  * ensuring that the static config upload procedure was successful.
 317  */
 318 static void sja1105_status_unpack(void *buf, struct sja1105_status *status)
 319 {
 320         /* So that addition translates to 4 bytes */
 321         u32 *p = buf;
 322
 323         /* device_id is missing from the buffer, but we don't
 324          * want to diverge from the manual definition of the
 325          * register addresses, so we'll back off one step with
 326          * the register pointer, and never access p[0].
 327          */
 328         p--;
 329         sja1105_unpack(p + 0x1, &status->configs,   31, 31, 4);
 330         sja1105_unpack(p + 0x1, &status->crcchkl,   30, 30, 4);
 331         sja1105_unpack(p + 0x1, &status->ids,       29, 29, 4);
 332         sja1105_unpack(p + 0x1, &status->crcchkg,   28, 28, 4);
 333 }
 334
 335 static int sja1105_status_get(struct sja1105_private *priv,
 336                               struct sja1105_status *status)
 337 {
 338         const struct sja1105_regs *regs = priv->info->regs;
 339         u8 packed_buf[4];
 340         int rc;
 341
 342         rc = sja1105_spi_send_packed_buf(priv, SPI_READ,
 343                                          regs->status,
 344                                          packed_buf, 4);
 345         if (rc < 0)
 346                 return rc;
 347
 348         sja1105_status_unpack(packed_buf, status);
 349
 350         return 0;
 351 }
 352
 353 /* Not const because unpacking priv->static_config into buffers and preparing
 354  * for upload requires the recalculation of table CRCs and updating the
 355  * structures with these.
 356  */
 357 static int
 358 static_config_buf_prepare_for_upload(struct sja1105_private *priv,
 359                                      void *config_buf, int buf_len)
 360 {
 361         struct sja1105_static_config *config = &priv->static_config;
 362         struct sja1105_table_header final_header;
 363         sja1105_config_valid_t valid;
 364         char *final_header_ptr;
 365         int crc_len;
 366
 367         valid = sja1105_static_config_check_valid(config);
 368         if (valid != SJA1105_CONFIG_OK) {
 369                 dev_err(&priv->spidev->dev,
 370                         sja1105_static_config_error_msg[valid]);
 371                 return -EINVAL;
 372         }
 373
 374         /* Write Device ID and config tables to config_buf */
 375         sja1105_static_config_pack(config_buf, config);
 376         /* Recalculate CRC of the last header (right now 0xDEADBEEF).
 377          * Don't include the CRC field itself.
 378          */
 379         crc_len = buf_len - 4;
 380         /* Read the whole table header */
 381         final_header_ptr = config_buf + buf_len - SJA1105_SIZE_TABLE_HEADER;
 382         sja1105_table_header_packing(final_header_ptr, &final_header, UNPACK);
 383         /* Modify */
 384         final_header.crc = sja1105_crc32(config_buf, crc_len);
 385         /* Rewrite */
 386         sja1105_table_header_packing(final_header_ptr, &final_header, PACK);
 387
 388         return 0;
 389 }
 390
 391 #define RETRIES 10
 392
 393 int sja1105_static_config_upload(struct sja1105_private *priv)
 394 {
 395         unsigned long port_bitmap = GENMASK_ULL(SJA1105_NUM_PORTS - 1, 0);
 396         struct sja1105_static_config *config = &priv->static_config;
 397         const struct sja1105_regs *regs = priv->info->regs;
 398         struct device *dev = &priv->spidev->dev;
 399         struct sja1105_status status;
 400         int rc, retries = RETRIES;
 401         u8 *config_buf;
 402         int buf_len;
 403
 404         buf_len = sja1105_static_config_get_length(config);
 405         config_buf = kcalloc(buf_len, sizeof(char), GFP_KERNEL);
 406         if (!config_buf)
 407                 return -ENOMEM;
 408
 409         rc = static_config_buf_prepare_for_upload(priv, config_buf, buf_len);
 410         if (rc < 0) {
 411                 dev_err(dev, "Invalid config, cannot upload\n");
 412                 rc = -EINVAL;
 413                 goto out;
 414         }
 415         /* Prevent PHY jabbering during switch reset by inhibiting
 416          * Tx on all ports and waiting for current packet to drain.
 417          * Otherwise, the PHY will see an unterminated Ethernet packet.
 418          */
 419         rc = sja1105_inhibit_tx(priv, port_bitmap, true);
 420         if (rc < 0) {
 421                 dev_err(dev, "Failed to inhibit Tx on ports\n");
 422                 rc = -ENXIO;
 423                 goto out;
 424         }
 425         /* Wait for an eventual egress packet to finish transmission
 426          * (reach IFG). It is guaranteed that a second one will not
 427          * follow, and that switch cold reset is thus safe
 428          */
 429         usleep_range(500, 1000);
 430         do {
 431                 /* Put the SJA1105 in programming mode */
 432                 rc = sja1105_cold_reset(priv);
 433                 if (rc < 0) {
 434                         dev_err(dev, "Failed to reset switch, retrying...\n");
 435                         continue;
 436                 }
 437                 /* Wait for the switch to come out of reset */
 438                 usleep_range(1000, 5000);
 439                 /* Upload the static config to the device */
 440                 rc = sja1105_spi_send_long_packed_buf(priv, SPI_WRITE,
 441                                                       regs->config,
 442                                                       config_buf, buf_len);
 443                 if (rc < 0) {
 444                         dev_err(dev, "Failed to upload config, retrying...\n");
 445                         continue;
 446                 }
 447                 /* Check that SJA1105 responded well to the config upload */
 448                 rc = sja1105_status_get(priv, &status);
 449                 if (rc < 0)
 450                         continue;
 451
 452                 if (status.ids == 1) {
 453                         dev_err(dev, "Mismatch between hardware and static config "
 454                                 "device id. Wrote 0x%llx, wants 0x%llx\n",
 455                                 config->device_id, priv->info->device_id);
 456                         continue;
 457                 }
 458                 if (status.crcchkl == 1) {
 459                         dev_err(dev, "Switch reported invalid local CRC on "
 460                                 "the uploaded config, retrying...\n");
 461                         continue;
 462                 }
 463                 if (status.crcchkg == 1) {
 464                         dev_err(dev, "Switch reported invalid global CRC on "
 465                                 "the uploaded config, retrying...\n");
 466                         continue;
 467                 }
 468                 if (status.configs == 0) {
 469                         dev_err(dev, "Switch reported that configuration is "
 470                                 "invalid, retrying...\n");
 471                         continue;
 472                 }
 473                 /* Success! */
 474                 break;
 475         } while (--retries);
 476
 477         if (!retries) {
 478                 rc = -EIO;
 479                 dev_err(dev, "Failed to upload config to device, giving up\n");
 480                 goto out;
 481         } else if (retries != RETRIES) {
 482                 dev_info(dev, "Succeeded after %d tried\n", RETRIES - retries);
 483         }
 484
 485         rc = sja1105_ptp_reset(priv);
 486         if (rc < 0)
 487                 dev_err(dev, "Failed to reset PTP clock: %d\n", rc);
 488
 489         dev_info(dev, "Reset switch and programmed static config\n");
 490
 491 out:
 492         kfree(config_buf);
 493         return rc;
 494 }
 495
 496 static struct sja1105_regs sja1105et_regs = {
 497         .device_id = 0x0,
 498         .prod_id = 0x100BC3,
 499         .status = 0x1,
 500         .port_control = 0x11,
 501         .config = 0x020000,
 502         .rgu = 0x100440,
 503         /* UM10944.pdf, Table 86, ACU Register overview */
 504         .pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
 505         .rmii_pll1 = 0x10000A,
 506         .cgu_idiv = {0x10000B, 0x10000C, 0x10000D, 0x10000E, 0x10000F},
 507         .mac = {0x200, 0x202, 0x204, 0x206, 0x208},
 508         .mac_hl1 = {0x400, 0x410, 0x420, 0x430, 0x440},
 509         .mac_hl2 = {0x600, 0x610, 0x620, 0x630, 0x640},
 510         /* UM10944.pdf, Table 78, CGU Register overview */
 511         .mii_tx_clk = {0x100013, 0x10001A, 0x100021, 0x100028, 0x10002F},
 512         .mii_rx_clk = {0x100014, 0x10001B, 0x100022, 0x100029, 0x100030},
 513         .mii_ext_tx_clk = {0x100018, 0x10001F, 0x100026, 0x10002D, 0x100034},
 514         .mii_ext_rx_clk = {0x100019, 0x100020, 0x100027, 0x10002E, 0x100035},
 515         .rgmii_tx_clk = {0x100016, 0x10001D, 0x100024, 0x10002B, 0x100032},
 516         .rmii_ref_clk = {0x100015, 0x10001C, 0x100023, 0x10002A, 0x100031},
 517         .rmii_ext_tx_clk = {0x100018, 0x10001F, 0x100026, 0x10002D, 0x100034},
 518         .ptpegr_ts = {0xC0, 0xC2, 0xC4, 0xC6, 0xC8},
 519         .ptp_control = 0x17,
 520         .ptpclk = 0x18, /* Spans 0x18 to 0x19 */
 521         .ptpclkrate = 0x1A,
 522         .ptptsclk = 0x1B, /* Spans 0x1B to 0x1C */
 523 };
 524
 525 static struct sja1105_regs sja1105pqrs_regs = {
 526         .device_id = 0x0,
 527         .prod_id = 0x100BC3,
 528         .status = 0x1,
 529         .port_control = 0x12,
 530         .config = 0x020000,
 531         .rgu = 0x100440,
 532         /* UM10944.pdf, Table 86, ACU Register overview */
 533         .pad_mii_tx = {0x100800, 0x100802, 0x100804, 0x100806, 0x100808},
 534         .pad_mii_id = {0x100810, 0x100811, 0x100812, 0x100813, 0x100814},
 535         .rmii_pll1 = 0x10000A,
 536         .cgu_idiv = {0x10000B, 0x10000C, 0x10000D, 0x10000E, 0x10000F},
 537         .mac = {0x200, 0x202, 0x204, 0x206, 0x208},
 538         .mac_hl1 = {0x400, 0x410, 0x420, 0x430, 0x440},
 539         .mac_hl2 = {0x600, 0x610, 0x620, 0x630, 0x640},
 540         /* UM11040.pdf, Table 114 */
 541         .mii_tx_clk = {0x100013, 0x100019, 0x10001F, 0x100025, 0x10002B},
 542         .mii_rx_clk = {0x100014, 0x10001A, 0x100020, 0x100026, 0x10002C},
 543         .mii_ext_tx_clk = {0x100017, 0x10001D, 0x100023, 0x100029, 0x10002F},
 544         .mii_ext_rx_clk = {0x100018, 0x10001E, 0x100024, 0x10002A, 0x100030},
 545         .rgmii_tx_clk = {0x100016, 0x10001C, 0x100022, 0x100028, 0x10002E},
 546         .rmii_ref_clk = {0x100015, 0x10001B, 0x100021, 0x100027, 0x10002D},
 547         .rmii_ext_tx_clk = {0x100017, 0x10001D, 0x100023, 0x100029, 0x10002F},
 548         .qlevel = {0x604, 0x614, 0x624, 0x634, 0x644},
 549         .ptpegr_ts = {0xC0, 0xC4, 0xC8, 0xCC, 0xD0},
 550         .ptp_control = 0x18,
 551         .ptpclk = 0x19,
 552         .ptpclkrate = 0x1B,
 553         .ptptsclk = 0x1C,
 554 };
 555
 556 struct sja1105_info sja1105e_info = {
 557         .device_id              = SJA1105E_DEVICE_ID,
 558         .part_no                = SJA1105ET_PART_NO,
 559         .static_ops             = sja1105e_table_ops,
 560         .dyn_ops                = sja1105et_dyn_ops,
 561         .ptp_ts_bits            = 24,
 562         .ptpegr_ts_bytes        = 4,
 563         .reset_cmd              = sja1105et_reset_cmd,
 564         .fdb_add_cmd            = sja1105et_fdb_add,
 565         .fdb_del_cmd            = sja1105et_fdb_del,
 566         .ptp_cmd                = sja1105et_ptp_cmd,
 567         .regs                   = &sja1105et_regs,
 568         .name                   = "SJA1105E",
 569 };
 570 struct sja1105_info sja1105t_info = {
 571         .device_id              = SJA1105T_DEVICE_ID,
 572         .part_no                = SJA1105ET_PART_NO,
 573         .static_ops             = sja1105t_table_ops,
 574         .dyn_ops                = sja1105et_dyn_ops,
 575         .ptp_ts_bits            = 24,
 576         .ptpegr_ts_bytes        = 4,
 577         .reset_cmd              = sja1105et_reset_cmd,
 578         .fdb_add_cmd            = sja1105et_fdb_add,
 579         .fdb_del_cmd            = sja1105et_fdb_del,
 580         .ptp_cmd                = sja1105et_ptp_cmd,
 581         .regs                   = &sja1105et_regs,
 582         .name                   = "SJA1105T",
 583 };
 584 struct sja1105_info sja1105p_info = {
 585         .device_id              = SJA1105PR_DEVICE_ID,
 586         .part_no                = SJA1105P_PART_NO,
 587         .static_ops             = sja1105p_table_ops,
 588         .dyn_ops                = sja1105pqrs_dyn_ops,
 589         .ptp_ts_bits            = 32,
 590         .ptpegr_ts_bytes        = 8,
 591         .setup_rgmii_delay      = sja1105pqrs_setup_rgmii_delay,
 592         .reset_cmd              = sja1105pqrs_reset_cmd,
 593         .fdb_add_cmd            = sja1105pqrs_fdb_add,
 594         .fdb_del_cmd            = sja1105pqrs_fdb_del,
 595         .ptp_cmd                = sja1105pqrs_ptp_cmd,
 596         .regs                   = &sja1105pqrs_regs,
 597         .name                   = "SJA1105P",
 598 };
 599 struct sja1105_info sja1105q_info = {
 600         .device_id              = SJA1105QS_DEVICE_ID,
 601         .part_no                = SJA1105Q_PART_NO,
 602         .static_ops             = sja1105q_table_ops,
 603         .dyn_ops                = sja1105pqrs_dyn_ops,
 604         .ptp_ts_bits            = 32,
 605         .ptpegr_ts_bytes        = 8,
 606         .setup_rgmii_delay      = sja1105pqrs_setup_rgmii_delay,
 607         .reset_cmd              = sja1105pqrs_reset_cmd,
 608         .fdb_add_cmd            = sja1105pqrs_fdb_add,
 609         .fdb_del_cmd            = sja1105pqrs_fdb_del,
 610         .ptp_cmd                = sja1105pqrs_ptp_cmd,
 611         .regs                   = &sja1105pqrs_regs,
 612         .name                   = "SJA1105Q",
 613 };
 614 struct sja1105_info sja1105r_info = {
 615         .device_id              = SJA1105PR_DEVICE_ID,
 616         .part_no                = SJA1105R_PART_NO,
 617         .static_ops             = sja1105r_table_ops,
 618         .dyn_ops                = sja1105pqrs_dyn_ops,
 619         .ptp_ts_bits            = 32,
 620         .ptpegr_ts_bytes        = 8,
 621         .setup_rgmii_delay      = sja1105pqrs_setup_rgmii_delay,
 622         .reset_cmd              = sja1105pqrs_reset_cmd,
 623         .fdb_add_cmd            = sja1105pqrs_fdb_add,
 624         .fdb_del_cmd            = sja1105pqrs_fdb_del,
 625         .ptp_cmd                = sja1105pqrs_ptp_cmd,
 626         .regs                   = &sja1105pqrs_regs,
 627         .name                   = "SJA1105R",
 628 };
 629 struct sja1105_info sja1105s_info = {
 630         .device_id              = SJA1105QS_DEVICE_ID,
 631         .part_no                = SJA1105S_PART_NO,
 632         .static_ops             = sja1105s_table_ops,
 633         .dyn_ops                = sja1105pqrs_dyn_ops,
 634         .regs                   = &sja1105pqrs_regs,
 635         .ptp_ts_bits            = 32,
 636         .ptpegr_ts_bytes        = 8,
 637         .setup_rgmii_delay      = sja1105pqrs_setup_rgmii_delay,
 638         .reset_cmd              = sja1105pqrs_reset_cmd,
 639         .fdb_add_cmd            = sja1105pqrs_fdb_add,
 640         .fdb_del_cmd            = sja1105pqrs_fdb_del,
 641         .ptp_cmd                = sja1105pqrs_ptp_cmd,
 642         .name                   = "SJA1105S",
 643 };