drivers/net/dsa/rtl8366rb.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Realtek SMI subdriver for the Realtek RTL8366RB ethernet switch
   3  *
   4  * This is a sparsely documented chip, the only viable documentation seems
   5  * to be a patched up code drop from the vendor that appear in various
   6  * GPL source trees.
   7  *
   8  * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
   9  * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
  10  * Copyright (C) 2010 Antti Seppälä <a.seppala@gmail.com>
  11  * Copyright (C) 2010 Roman Yeryomin <roman@advem.lv>
  12  * Copyright (C) 2011 Colin Leitner <colin.leitner@googlemail.com>
  13  */
  14
  15 #include <linux/bitops.h>
  16 #include <linux/etherdevice.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/irqdomain.h>
  19 #include <linux/irqchip/chained_irq.h>
  20 #include <linux/of_irq.h>
  21 #include <linux/regmap.h>
  22
  23 #include "realtek-smi.h"
  24
  25 #define RTL8366RB_PORT_NUM_CPU          5
  26 #define RTL8366RB_NUM_PORTS             6
  27 #define RTL8366RB_PHY_NO_MAX            4
  28 #define RTL8366RB_PHY_ADDR_MAX          31
  29
  30 /* Switch Global Configuration register */
  31 #define RTL8366RB_SGCR                          0x0000
  32 #define RTL8366RB_SGCR_EN_BC_STORM_CTRL         BIT(0)
  33 #define RTL8366RB_SGCR_MAX_LENGTH(a)            ((a) << 4)
  34 #define RTL8366RB_SGCR_MAX_LENGTH_MASK          RTL8366RB_SGCR_MAX_LENGTH(0x3)
  35 #define RTL8366RB_SGCR_MAX_LENGTH_1522          RTL8366RB_SGCR_MAX_LENGTH(0x0)
  36 #define RTL8366RB_SGCR_MAX_LENGTH_1536          RTL8366RB_SGCR_MAX_LENGTH(0x1)
  37 #define RTL8366RB_SGCR_MAX_LENGTH_1552          RTL8366RB_SGCR_MAX_LENGTH(0x2)
  38 #define RTL8366RB_SGCR_MAX_LENGTH_9216          RTL8366RB_SGCR_MAX_LENGTH(0x3)
  39 #define RTL8366RB_SGCR_EN_VLAN                  BIT(13)
  40 #define RTL8366RB_SGCR_EN_VLAN_4KTB             BIT(14)
  41
  42 /* Port Enable Control register */
  43 #define RTL8366RB_PECR                          0x0001
  44
  45 /* Switch Security Control registers */
  46 #define RTL8366RB_SSCR0                         0x0002
  47 #define RTL8366RB_SSCR1                         0x0003
  48 #define RTL8366RB_SSCR2                         0x0004
  49 #define RTL8366RB_SSCR2_DROP_UNKNOWN_DA         BIT(0)
  50
  51 /* Port Mode Control registers */
  52 #define RTL8366RB_PMC0                          0x0005
  53 #define RTL8366RB_PMC0_SPI                      BIT(0)
  54 #define RTL8366RB_PMC0_EN_AUTOLOAD              BIT(1)
  55 #define RTL8366RB_PMC0_PROBE                    BIT(2)
  56 #define RTL8366RB_PMC0_DIS_BISR                 BIT(3)
  57 #define RTL8366RB_PMC0_ADCTEST                  BIT(4)
  58 #define RTL8366RB_PMC0_SRAM_DIAG                BIT(5)
  59 #define RTL8366RB_PMC0_EN_SCAN                  BIT(6)
  60 #define RTL8366RB_PMC0_P4_IOMODE_SHIFT          7
  61 #define RTL8366RB_PMC0_P4_IOMODE_MASK           GENMASK(9, 7)
  62 #define RTL8366RB_PMC0_P5_IOMODE_SHIFT          10
  63 #define RTL8366RB_PMC0_P5_IOMODE_MASK           GENMASK(12, 10)
  64 #define RTL8366RB_PMC0_SDSMODE_SHIFT            13
  65 #define RTL8366RB_PMC0_SDSMODE_MASK             GENMASK(15, 13)
  66 #define RTL8366RB_PMC1                          0x0006
  67
  68 /* Port Mirror Control Register */
  69 #define RTL8366RB_PMCR                          0x0007
  70 #define RTL8366RB_PMCR_SOURCE_PORT(a)           (a)
  71 #define RTL8366RB_PMCR_SOURCE_PORT_MASK         0x000f
  72 #define RTL8366RB_PMCR_MONITOR_PORT(a)          ((a) << 4)
  73 #define RTL8366RB_PMCR_MONITOR_PORT_MASK        0x00f0
  74 #define RTL8366RB_PMCR_MIRROR_RX                BIT(8)
  75 #define RTL8366RB_PMCR_MIRROR_TX                BIT(9)
  76 #define RTL8366RB_PMCR_MIRROR_SPC               BIT(10)
  77 #define RTL8366RB_PMCR_MIRROR_ISO               BIT(11)
  78
  79 /* bits 0..7 = port 0, bits 8..15 = port 1 */
  80 #define RTL8366RB_PAACR0                0x0010
  81 /* bits 0..7 = port 2, bits 8..15 = port 3 */
  82 #define RTL8366RB_PAACR1                0x0011
  83 /* bits 0..7 = port 4, bits 8..15 = port 5 */
  84 #define RTL8366RB_PAACR2                0x0012
  85 #define RTL8366RB_PAACR_SPEED_10M       0
  86 #define RTL8366RB_PAACR_SPEED_100M      1
  87 #define RTL8366RB_PAACR_SPEED_1000M     2
  88 #define RTL8366RB_PAACR_FULL_DUPLEX     BIT(2)
  89 #define RTL8366RB_PAACR_LINK_UP         BIT(4)
  90 #define RTL8366RB_PAACR_TX_PAUSE        BIT(5)
  91 #define RTL8366RB_PAACR_RX_PAUSE        BIT(6)
  92 #define RTL8366RB_PAACR_AN              BIT(7)
  93
  94 #define RTL8366RB_PAACR_CPU_PORT        (RTL8366RB_PAACR_SPEED_1000M | \
  95                                          RTL8366RB_PAACR_FULL_DUPLEX | \
  96                                          RTL8366RB_PAACR_LINK_UP | \
  97                                          RTL8366RB_PAACR_TX_PAUSE | \
  98                                          RTL8366RB_PAACR_RX_PAUSE)
  99
 100 /* bits 0..7 = port 0, bits 8..15 = port 1 */
 101 #define RTL8366RB_PSTAT0                0x0014
 102 /* bits 0..7 = port 2, bits 8..15 = port 3 */
 103 #define RTL8366RB_PSTAT1                0x0015
 104 /* bits 0..7 = port 4, bits 8..15 = port 5 */
 105 #define RTL8366RB_PSTAT2                0x0016
 106
 107 #define RTL8366RB_POWER_SAVING_REG      0x0021
 108
 109 /* CPU port control reg */
 110 #define RTL8368RB_CPU_CTRL_REG          0x0061
 111 #define RTL8368RB_CPU_PORTS_MSK         0x00FF
 112 /* Enables inserting custom tag length/type 0x8899 */
 113 #define RTL8368RB_CPU_INSTAG            BIT(15)
 114
 115 #define RTL8366RB_SMAR0                 0x0070 /* bits 0..15 */
 116 #define RTL8366RB_SMAR1                 0x0071 /* bits 16..31 */
 117 #define RTL8366RB_SMAR2                 0x0072 /* bits 32..47 */
 118
 119 #define RTL8366RB_RESET_CTRL_REG                0x0100
 120 #define RTL8366RB_CHIP_CTRL_RESET_HW            BIT(0)
 121 #define RTL8366RB_CHIP_CTRL_RESET_SW            BIT(1)
 122
 123 #define RTL8366RB_CHIP_ID_REG                   0x0509
 124 #define RTL8366RB_CHIP_ID_8366                  0x5937
 125 #define RTL8366RB_CHIP_VERSION_CTRL_REG         0x050A
 126 #define RTL8366RB_CHIP_VERSION_MASK             0xf
 127
 128 /* PHY registers control */
 129 #define RTL8366RB_PHY_ACCESS_CTRL_REG           0x8000
 130 #define RTL8366RB_PHY_CTRL_READ                 BIT(0)
 131 #define RTL8366RB_PHY_CTRL_WRITE                0
 132 #define RTL8366RB_PHY_ACCESS_BUSY_REG           0x8001
 133 #define RTL8366RB_PHY_INT_BUSY                  BIT(0)
 134 #define RTL8366RB_PHY_EXT_BUSY                  BIT(4)
 135 #define RTL8366RB_PHY_ACCESS_DATA_REG           0x8002
 136 #define RTL8366RB_PHY_EXT_CTRL_REG              0x8010
 137 #define RTL8366RB_PHY_EXT_WRDATA_REG            0x8011
 138 #define RTL8366RB_PHY_EXT_RDDATA_REG            0x8012
 139
 140 #define RTL8366RB_PHY_REG_MASK                  0x1f
 141 #define RTL8366RB_PHY_PAGE_OFFSET               5
 142 #define RTL8366RB_PHY_PAGE_MASK                 (0xf << 5)
 143 #define RTL8366RB_PHY_NO_OFFSET                 9
 144 #define RTL8366RB_PHY_NO_MASK                   (0x1f << 9)
 145
 146 #define RTL8366RB_VLAN_INGRESS_CTRL2_REG        0x037f
 147
 148 /* LED control registers */
 149 #define RTL8366RB_LED_BLINKRATE_REG             0x0430
 150 #define RTL8366RB_LED_BLINKRATE_MASK            0x0007
 151 #define RTL8366RB_LED_BLINKRATE_28MS            0x0000
 152 #define RTL8366RB_LED_BLINKRATE_56MS            0x0001
 153 #define RTL8366RB_LED_BLINKRATE_84MS            0x0002
 154 #define RTL8366RB_LED_BLINKRATE_111MS           0x0003
 155 #define RTL8366RB_LED_BLINKRATE_222MS           0x0004
 156 #define RTL8366RB_LED_BLINKRATE_446MS           0x0005
 157
 158 #define RTL8366RB_LED_CTRL_REG                  0x0431
 159 #define RTL8366RB_LED_OFF                       0x0
 160 #define RTL8366RB_LED_DUP_COL                   0x1
 161 #define RTL8366RB_LED_LINK_ACT                  0x2
 162 #define RTL8366RB_LED_SPD1000                   0x3
 163 #define RTL8366RB_LED_SPD100                    0x4
 164 #define RTL8366RB_LED_SPD10                     0x5
 165 #define RTL8366RB_LED_SPD1000_ACT               0x6
 166 #define RTL8366RB_LED_SPD100_ACT                0x7
 167 #define RTL8366RB_LED_SPD10_ACT                 0x8
 168 #define RTL8366RB_LED_SPD100_10_ACT             0x9
 169 #define RTL8366RB_LED_FIBER                     0xa
 170 #define RTL8366RB_LED_AN_FAULT                  0xb
 171 #define RTL8366RB_LED_LINK_RX                   0xc
 172 #define RTL8366RB_LED_LINK_TX                   0xd
 173 #define RTL8366RB_LED_MASTER                    0xe
 174 #define RTL8366RB_LED_FORCE                     0xf
 175 #define RTL8366RB_LED_0_1_CTRL_REG              0x0432
 176 #define RTL8366RB_LED_1_OFFSET                  6
 177 #define RTL8366RB_LED_2_3_CTRL_REG              0x0433
 178 #define RTL8366RB_LED_3_OFFSET                  6
 179
 180 #define RTL8366RB_MIB_COUNT                     33
 181 #define RTL8366RB_GLOBAL_MIB_COUNT              1
 182 #define RTL8366RB_MIB_COUNTER_PORT_OFFSET       0x0050
 183 #define RTL8366RB_MIB_COUNTER_BASE              0x1000
 184 #define RTL8366RB_MIB_CTRL_REG                  0x13F0
 185 #define RTL8366RB_MIB_CTRL_USER_MASK            0x0FFC
 186 #define RTL8366RB_MIB_CTRL_BUSY_MASK            BIT(0)
 187 #define RTL8366RB_MIB_CTRL_RESET_MASK           BIT(1)
 188 #define RTL8366RB_MIB_CTRL_PORT_RESET(_p)       BIT(2 + (_p))
 189 #define RTL8366RB_MIB_CTRL_GLOBAL_RESET         BIT(11)
 190
 191 #define RTL8366RB_PORT_VLAN_CTRL_BASE           0x0063
 192 #define RTL8366RB_PORT_VLAN_CTRL_REG(_p)  \
 193                 (RTL8366RB_PORT_VLAN_CTRL_BASE + (_p) / 4)
 194 #define RTL8366RB_PORT_VLAN_CTRL_MASK           0xf
 195 #define RTL8366RB_PORT_VLAN_CTRL_SHIFT(_p)      (4 * ((_p) % 4))
 196
 197 #define RTL8366RB_VLAN_TABLE_READ_BASE          0x018C
 198 #define RTL8366RB_VLAN_TABLE_WRITE_BASE         0x0185
 199
 200 #define RTL8366RB_TABLE_ACCESS_CTRL_REG         0x0180
 201 #define RTL8366RB_TABLE_VLAN_READ_CTRL          0x0E01
 202 #define RTL8366RB_TABLE_VLAN_WRITE_CTRL         0x0F01
 203
 204 #define RTL8366RB_VLAN_MC_BASE(_x)              (0x0020 + (_x) * 3)
 205
 206 #define RTL8366RB_PORT_LINK_STATUS_BASE         0x0014
 207 #define RTL8366RB_PORT_STATUS_SPEED_MASK        0x0003
 208 #define RTL8366RB_PORT_STATUS_DUPLEX_MASK       0x0004
 209 #define RTL8366RB_PORT_STATUS_LINK_MASK         0x0010
 210 #define RTL8366RB_PORT_STATUS_TXPAUSE_MASK      0x0020
 211 #define RTL8366RB_PORT_STATUS_RXPAUSE_MASK      0x0040
 212 #define RTL8366RB_PORT_STATUS_AN_MASK           0x0080
 213
 214 #define RTL8366RB_NUM_VLANS             16
 215 #define RTL8366RB_NUM_LEDGROUPS         4
 216 #define RTL8366RB_NUM_VIDS              4096
 217 #define RTL8366RB_PRIORITYMAX           7
 218 #define RTL8366RB_FIDMAX                7
 219
 220 #define RTL8366RB_PORT_1                BIT(0) /* In userspace port 0 */
 221 #define RTL8366RB_PORT_2                BIT(1) /* In userspace port 1 */
 222 #define RTL8366RB_PORT_3                BIT(2) /* In userspace port 2 */
 223 #define RTL8366RB_PORT_4                BIT(3) /* In userspace port 3 */
 224 #define RTL8366RB_PORT_5                BIT(4) /* In userspace port 4 */
 225
 226 #define RTL8366RB_PORT_CPU              BIT(5) /* CPU port */
 227
 228 #define RTL8366RB_PORT_ALL              (RTL8366RB_PORT_1 |     \
 229                                          RTL8366RB_PORT_2 |     \
 230                                          RTL8366RB_PORT_3 |     \
 231                                          RTL8366RB_PORT_4 |     \
 232                                          RTL8366RB_PORT_5 |     \
 233                                          RTL8366RB_PORT_CPU)
 234
 235 #define RTL8366RB_PORT_ALL_BUT_CPU      (RTL8366RB_PORT_1 |     \
 236                                          RTL8366RB_PORT_2 |     \
 237                                          RTL8366RB_PORT_3 |     \
 238                                          RTL8366RB_PORT_4 |     \
 239                                          RTL8366RB_PORT_5)
 240
 241 #define RTL8366RB_PORT_ALL_EXTERNAL     (RTL8366RB_PORT_1 |     \
 242                                          RTL8366RB_PORT_2 |     \
 243                                          RTL8366RB_PORT_3 |     \
 244                                          RTL8366RB_PORT_4)
 245
 246 #define RTL8366RB_PORT_ALL_INTERNAL      RTL8366RB_PORT_CPU
 247
 248 /* First configuration word per member config, VID and prio */
 249 #define RTL8366RB_VLAN_VID_MASK         0xfff
 250 #define RTL8366RB_VLAN_PRIORITY_SHIFT   12
 251 #define RTL8366RB_VLAN_PRIORITY_MASK    0x7
 252 /* Second configuration word per member config, member and untagged */
 253 #define RTL8366RB_VLAN_UNTAG_SHIFT      8
 254 #define RTL8366RB_VLAN_UNTAG_MASK       0xff
 255 #define RTL8366RB_VLAN_MEMBER_MASK      0xff
 256 /* Third config word per member config, STAG currently unused */
 257 #define RTL8366RB_VLAN_STAG_MBR_MASK    0xff
 258 #define RTL8366RB_VLAN_STAG_MBR_SHIFT   8
 259 #define RTL8366RB_VLAN_STAG_IDX_MASK    0x7
 260 #define RTL8366RB_VLAN_STAG_IDX_SHIFT   5
 261 #define RTL8366RB_VLAN_FID_MASK         0x7
 262
 263 /* Port ingress bandwidth control */
 264 #define RTL8366RB_IB_BASE               0x0200
 265 #define RTL8366RB_IB_REG(pnum)          (RTL8366RB_IB_BASE + (pnum))
 266 #define RTL8366RB_IB_BDTH_MASK          0x3fff
 267 #define RTL8366RB_IB_PREIFG             BIT(14)
 268
 269 /* Port egress bandwidth control */
 270 #define RTL8366RB_EB_BASE               0x02d1
 271 #define RTL8366RB_EB_REG(pnum)          (RTL8366RB_EB_BASE + (pnum))
 272 #define RTL8366RB_EB_BDTH_MASK          0x3fff
 273 #define RTL8366RB_EB_PREIFG_REG         0x02f8
 274 #define RTL8366RB_EB_PREIFG             BIT(9)
 275
 276 #define RTL8366RB_BDTH_SW_MAX           1048512 /* 1048576? */
 277 #define RTL8366RB_BDTH_UNIT             64
 278 #define RTL8366RB_BDTH_REG_DEFAULT      16383
 279
 280 /* QOS */
 281 #define RTL8366RB_QOS                   BIT(15)
 282 /* Include/Exclude Preamble and IFG (20 bytes). 0:Exclude, 1:Include. */
 283 #define RTL8366RB_QOS_DEFAULT_PREIFG    1
 284
 285 /* Interrupt handling */
 286 #define RTL8366RB_INTERRUPT_CONTROL_REG 0x0440
 287 #define RTL8366RB_INTERRUPT_POLARITY    BIT(0)
 288 #define RTL8366RB_P4_RGMII_LED          BIT(2)
 289 #define RTL8366RB_INTERRUPT_MASK_REG    0x0441
 290 #define RTL8366RB_INTERRUPT_LINK_CHGALL GENMASK(11, 0)
 291 #define RTL8366RB_INTERRUPT_ACLEXCEED   BIT(8)
 292 #define RTL8366RB_INTERRUPT_STORMEXCEED BIT(9)
 293 #define RTL8366RB_INTERRUPT_P4_FIBER    BIT(12)
 294 #define RTL8366RB_INTERRUPT_P4_UTP      BIT(13)
 295 #define RTL8366RB_INTERRUPT_VALID       (RTL8366RB_INTERRUPT_LINK_CHGALL | \
 296                                          RTL8366RB_INTERRUPT_ACLEXCEED | \
 297                                          RTL8366RB_INTERRUPT_STORMEXCEED | \
 298                                          RTL8366RB_INTERRUPT_P4_FIBER | \
 299                                          RTL8366RB_INTERRUPT_P4_UTP)
 300 #define RTL8366RB_INTERRUPT_STATUS_REG  0x0442
 301 #define RTL8366RB_NUM_INTERRUPT         14 /* 0..13 */
 302
 303 /* bits 0..5 enable force when cleared */
 304 #define RTL8366RB_MAC_FORCE_CTRL_REG    0x0F11
 305
 306 #define RTL8366RB_OAM_PARSER_REG        0x0F14
 307 #define RTL8366RB_OAM_MULTIPLEXER_REG   0x0F15
 308
 309 #define RTL8366RB_GREEN_FEATURE_REG     0x0F51
 310 #define RTL8366RB_GREEN_FEATURE_MSK     0x0007
 311 #define RTL8366RB_GREEN_FEATURE_TX      BIT(0)
 312 #define RTL8366RB_GREEN_FEATURE_RX      BIT(2)
 313
 314 static struct rtl8366_mib_counter rtl8366rb_mib_counters[] = {
 315         { 0,  0, 4, "IfInOctets"                                },
 316         { 0,  4, 4, "EtherStatsOctets"                          },
 317         { 0,  8, 2, "EtherStatsUnderSizePkts"                   },
 318         { 0, 10, 2, "EtherFragments"                            },
 319         { 0, 12, 2, "EtherStatsPkts64Octets"                    },
 320         { 0, 14, 2, "EtherStatsPkts65to127Octets"               },
 321         { 0, 16, 2, "EtherStatsPkts128to255Octets"              },
 322         { 0, 18, 2, "EtherStatsPkts256to511Octets"              },
 323         { 0, 20, 2, "EtherStatsPkts512to1023Octets"             },
 324         { 0, 22, 2, "EtherStatsPkts1024to1518Octets"            },
 325         { 0, 24, 2, "EtherOversizeStats"                        },
 326         { 0, 26, 2, "EtherStatsJabbers"                         },
 327         { 0, 28, 2, "IfInUcastPkts"                             },
 328         { 0, 30, 2, "EtherStatsMulticastPkts"                   },
 329         { 0, 32, 2, "EtherStatsBroadcastPkts"                   },
 330         { 0, 34, 2, "EtherStatsDropEvents"                      },
 331         { 0, 36, 2, "Dot3StatsFCSErrors"                        },
 332         { 0, 38, 2, "Dot3StatsSymbolErrors"                     },
 333         { 0, 40, 2, "Dot3InPauseFrames"                         },
 334         { 0, 42, 2, "Dot3ControlInUnknownOpcodes"               },
 335         { 0, 44, 4, "IfOutOctets"                               },
 336         { 0, 48, 2, "Dot3StatsSingleCollisionFrames"            },
 337         { 0, 50, 2, "Dot3StatMultipleCollisionFrames"           },
 338         { 0, 52, 2, "Dot3sDeferredTransmissions"                },
 339         { 0, 54, 2, "Dot3StatsLateCollisions"                   },
 340         { 0, 56, 2, "EtherStatsCollisions"                      },
 341         { 0, 58, 2, "Dot3StatsExcessiveCollisions"              },
 342         { 0, 60, 2, "Dot3OutPauseFrames"                        },
 343         { 0, 62, 2, "Dot1dBasePortDelayExceededDiscards"        },
 344         { 0, 64, 2, "Dot1dTpPortInDiscards"                     },
 345         { 0, 66, 2, "IfOutUcastPkts"                            },
 346         { 0, 68, 2, "IfOutMulticastPkts"                        },
 347         { 0, 70, 2, "IfOutBroadcastPkts"                        },
 348 };
 349
 350 static int rtl8366rb_get_mib_counter(struct realtek_smi *smi,
 351                                      int port,
 352                                      struct rtl8366_mib_counter *mib,
 353                                      u64 *mibvalue)
 354 {
 355         u32 addr, val;
 356         int ret;
 357         int i;
 358
 359         addr = RTL8366RB_MIB_COUNTER_BASE +
 360                 RTL8366RB_MIB_COUNTER_PORT_OFFSET * (port) +
 361                 mib->offset;
 362
 363         /* Writing access counter address first
 364          * then ASIC will prepare 64bits counter wait for being retrived
 365          */
 366         ret = regmap_write(smi->map, addr, 0); /* Write whatever */
 367         if (ret)
 368                 return ret;
 369
 370         /* Read MIB control register */
 371         ret = regmap_read(smi->map, RTL8366RB_MIB_CTRL_REG, &val);
 372         if (ret)
 373                 return -EIO;
 374
 375         if (val & RTL8366RB_MIB_CTRL_BUSY_MASK)
 376                 return -EBUSY;
 377
 378         if (val & RTL8366RB_MIB_CTRL_RESET_MASK)
 379                 return -EIO;
 380
 381         /* Read each individual MIB 16 bits at the time */
 382         *mibvalue = 0;
 383         for (i = mib->length; i > 0; i--) {
 384                 ret = regmap_read(smi->map, addr + (i - 1), &val);
 385                 if (ret)
 386                         return ret;
 387                 *mibvalue = (*mibvalue << 16) | (val & 0xFFFF);
 388         }
 389         return 0;
 390 }
 391
 392 static u32 rtl8366rb_get_irqmask(struct irq_data *d)
 393 {
 394         int line = irqd_to_hwirq(d);
 395         u32 val;
 396
 397         /* For line interrupts we combine link down in bits
 398          * 6..11 with link up in bits 0..5 into one interrupt.
 399          */
 400         if (line < 12)
 401                 val = BIT(line) | BIT(line + 6);
 402         else
 403                 val = BIT(line);
 404         return val;
 405 }
 406
 407 static void rtl8366rb_mask_irq(struct irq_data *d)
 408 {
 409         struct realtek_smi *smi = irq_data_get_irq_chip_data(d);
 410         int ret;
 411
 412         ret = regmap_update_bits(smi->map, RTL8366RB_INTERRUPT_MASK_REG,
 413                                  rtl8366rb_get_irqmask(d), 0);
 414         if (ret)
 415                 dev_err(smi->dev, "could not mask IRQ\n");
 416 }
 417
 418 static void rtl8366rb_unmask_irq(struct irq_data *d)
 419 {
 420         struct realtek_smi *smi = irq_data_get_irq_chip_data(d);
 421         int ret;
 422
 423         ret = regmap_update_bits(smi->map, RTL8366RB_INTERRUPT_MASK_REG,
 424                                  rtl8366rb_get_irqmask(d),
 425                                  rtl8366rb_get_irqmask(d));
 426         if (ret)
 427                 dev_err(smi->dev, "could not unmask IRQ\n");
 428 }
 429
 430 static irqreturn_t rtl8366rb_irq(int irq, void *data)
 431 {
 432         struct realtek_smi *smi = data;
 433         u32 stat;
 434         int ret;
 435
 436         /* This clears the IRQ status register */
 437         ret = regmap_read(smi->map, RTL8366RB_INTERRUPT_STATUS_REG,
 438                           &stat);
 439         if (ret) {
 440                 dev_err(smi->dev, "can't read interrupt status\n");
 441                 return IRQ_NONE;
 442         }
 443         stat &= RTL8366RB_INTERRUPT_VALID;
 444         if (!stat)
 445                 return IRQ_NONE;
 446         while (stat) {
 447                 int line = __ffs(stat);
 448                 int child_irq;
 449
 450                 stat &= ~BIT(line);
 451                 /* For line interrupts we combine link down in bits
 452                  * 6..11 with link up in bits 0..5 into one interrupt.
 453                  */
 454                 if (line < 12 && line > 5)
 455                         line -= 5;
 456                 child_irq = irq_find_mapping(smi->irqdomain, line);
 457                 handle_nested_irq(child_irq);
 458         }
 459         return IRQ_HANDLED;
 460 }
 461
 462 static struct irq_chip rtl8366rb_irq_chip = {
 463         .name = "RTL8366RB",
 464         .irq_mask = rtl8366rb_mask_irq,
 465         .irq_unmask = rtl8366rb_unmask_irq,
 466 };
 467
 468 static int rtl8366rb_irq_map(struct irq_domain *domain, unsigned int irq,
 469                              irq_hw_number_t hwirq)
 470 {
 471         irq_set_chip_data(irq, domain->host_data);
 472         irq_set_chip_and_handler(irq, &rtl8366rb_irq_chip, handle_simple_irq);
 473         irq_set_nested_thread(irq, 1);
 474         irq_set_noprobe(irq);
 475
 476         return 0;
 477 }
 478
 479 static void rtl8366rb_irq_unmap(struct irq_domain *d, unsigned int irq)
 480 {
 481         irq_set_nested_thread(irq, 0);
 482         irq_set_chip_and_handler(irq, NULL, NULL);
 483         irq_set_chip_data(irq, NULL);
 484 }
 485
 486 static const struct irq_domain_ops rtl8366rb_irqdomain_ops = {
 487         .map = rtl8366rb_irq_map,
 488         .unmap = rtl8366rb_irq_unmap,
 489         .xlate  = irq_domain_xlate_onecell,
 490 };
 491
 492 static int rtl8366rb_setup_cascaded_irq(struct realtek_smi *smi)
 493 {
 494         struct device_node *intc;
 495         unsigned long irq_trig;
 496         int irq;
 497         int ret;
 498         u32 val;
 499         int i;
 500
 501         intc = of_get_child_by_name(smi->dev->of_node, "interrupt-controller");
 502         if (!intc) {
 503                 dev_err(smi->dev, "missing child interrupt-controller node\n");
 504                 return -EINVAL;
 505         }
 506         /* RB8366RB IRQs cascade off this one */
 507         irq = of_irq_get(intc, 0);
 508         if (irq <= 0) {
 509                 dev_err(smi->dev, "failed to get parent IRQ\n");
 510                 ret = irq ? irq : -EINVAL;
 511                 goto out_put_node;
 512         }
 513
 514         /* This clears the IRQ status register */
 515         ret = regmap_read(smi->map, RTL8366RB_INTERRUPT_STATUS_REG,
 516                           &val);
 517         if (ret) {
 518                 dev_err(smi->dev, "can't read interrupt status\n");
 519                 goto out_put_node;
 520         }
 521
 522         /* Fetch IRQ edge information from the descriptor */
 523         irq_trig = irqd_get_trigger_type(irq_get_irq_data(irq));
 524         switch (irq_trig) {
 525         case IRQF_TRIGGER_RISING:
 526         case IRQF_TRIGGER_HIGH:
 527                 dev_info(smi->dev, "active high/rising IRQ\n");
 528                 val = 0;
 529                 break;
 530         case IRQF_TRIGGER_FALLING:
 531         case IRQF_TRIGGER_LOW:
 532                 dev_info(smi->dev, "active low/falling IRQ\n");
 533                 val = RTL8366RB_INTERRUPT_POLARITY;
 534                 break;
 535         }
 536         ret = regmap_update_bits(smi->map, RTL8366RB_INTERRUPT_CONTROL_REG,
 537                                  RTL8366RB_INTERRUPT_POLARITY,
 538                                  val);
 539         if (ret) {
 540                 dev_err(smi->dev, "could not configure IRQ polarity\n");
 541                 goto out_put_node;
 542         }
 543
 544         ret = devm_request_threaded_irq(smi->dev, irq, NULL,
 545                                         rtl8366rb_irq, IRQF_ONESHOT,
 546                                         "RTL8366RB", smi);
 547         if (ret) {
 548                 dev_err(smi->dev, "unable to request irq: %d\n", ret);
 549                 goto out_put_node;
 550         }
 551         smi->irqdomain = irq_domain_add_linear(intc,
 552                                                RTL8366RB_NUM_INTERRUPT,
 553                                                &rtl8366rb_irqdomain_ops,
 554                                                smi);
 555         if (!smi->irqdomain) {
 556                 dev_err(smi->dev, "failed to create IRQ domain\n");
 557                 ret = -EINVAL;
 558                 goto out_put_node;
 559         }
 560         for (i = 0; i < smi->num_ports; i++)
 561                 irq_set_parent(irq_create_mapping(smi->irqdomain, i), irq);
 562
 563 out_put_node:
 564         of_node_put(intc);
 565         return ret;
 566 }
 567
 568 static int rtl8366rb_set_addr(struct realtek_smi *smi)
 569 {
 570         u8 addr[ETH_ALEN];
 571         u16 val;
 572         int ret;
 573
 574         eth_random_addr(addr);
 575
 576         dev_info(smi->dev, "set MAC: %02X:%02X:%02X:%02X:%02X:%02X\n",
 577                  addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
 578         val = addr[0] << 8 | addr[1];
 579         ret = regmap_write(smi->map, RTL8366RB_SMAR0, val);
 580         if (ret)
 581                 return ret;
 582         val = addr[2] << 8 | addr[3];
 583         ret = regmap_write(smi->map, RTL8366RB_SMAR1, val);
 584         if (ret)
 585                 return ret;
 586         val = addr[4] << 8 | addr[5];
 587         ret = regmap_write(smi->map, RTL8366RB_SMAR2, val);
 588         if (ret)
 589                 return ret;
 590
 591         return 0;
 592 }
 593
 594 /* Found in a vendor driver */
 595
 596 /* For the "version 0" early silicon, appear in most source releases */
 597 static const u16 rtl8366rb_init_jam_ver_0[] = {
 598         0x000B, 0x0001, 0x03A6, 0x0100, 0x03A7, 0x0001, 0x02D1, 0x3FFF,
 599         0x02D2, 0x3FFF, 0x02D3, 0x3FFF, 0x02D4, 0x3FFF, 0x02D5, 0x3FFF,
 600         0x02D6, 0x3FFF, 0x02D7, 0x3FFF, 0x02D8, 0x3FFF, 0x022B, 0x0688,
 601         0x022C, 0x0FAC, 0x03D0, 0x4688, 0x03D1, 0x01F5, 0x0000, 0x0830,
 602         0x02F9, 0x0200, 0x02F7, 0x7FFF, 0x02F8, 0x03FF, 0x0080, 0x03E8,
 603         0x0081, 0x00CE, 0x0082, 0x00DA, 0x0083, 0x0230, 0xBE0F, 0x2000,
 604         0x0231, 0x422A, 0x0232, 0x422A, 0x0233, 0x422A, 0x0234, 0x422A,
 605         0x0235, 0x422A, 0x0236, 0x422A, 0x0237, 0x422A, 0x0238, 0x422A,
 606         0x0239, 0x422A, 0x023A, 0x422A, 0x023B, 0x422A, 0x023C, 0x422A,
 607         0x023D, 0x422A, 0x023E, 0x422A, 0x023F, 0x422A, 0x0240, 0x422A,
 608         0x0241, 0x422A, 0x0242, 0x422A, 0x0243, 0x422A, 0x0244, 0x422A,
 609         0x0245, 0x422A, 0x0246, 0x422A, 0x0247, 0x422A, 0x0248, 0x422A,
 610         0x0249, 0x0146, 0x024A, 0x0146, 0x024B, 0x0146, 0xBE03, 0xC961,
 611         0x024D, 0x0146, 0x024E, 0x0146, 0x024F, 0x0146, 0x0250, 0x0146,
 612         0xBE64, 0x0226, 0x0252, 0x0146, 0x0253, 0x0146, 0x024C, 0x0146,
 613         0x0251, 0x0146, 0x0254, 0x0146, 0xBE62, 0x3FD0, 0x0084, 0x0320,
 614         0x0255, 0x0146, 0x0256, 0x0146, 0x0257, 0x0146, 0x0258, 0x0146,
 615         0x0259, 0x0146, 0x025A, 0x0146, 0x025B, 0x0146, 0x025C, 0x0146,
 616         0x025D, 0x0146, 0x025E, 0x0146, 0x025F, 0x0146, 0x0260, 0x0146,
 617         0x0261, 0xA23F, 0x0262, 0x0294, 0x0263, 0xA23F, 0x0264, 0x0294,
 618         0x0265, 0xA23F, 0x0266, 0x0294, 0x0267, 0xA23F, 0x0268, 0x0294,
 619         0x0269, 0xA23F, 0x026A, 0x0294, 0x026B, 0xA23F, 0x026C, 0x0294,
 620         0x026D, 0xA23F, 0x026E, 0x0294, 0x026F, 0xA23F, 0x0270, 0x0294,
 621         0x02F5, 0x0048, 0xBE09, 0x0E00, 0xBE1E, 0x0FA0, 0xBE14, 0x8448,
 622         0xBE15, 0x1007, 0xBE4A, 0xA284, 0xC454, 0x3F0B, 0xC474, 0x3F0B,
 623         0xBE48, 0x3672, 0xBE4B, 0x17A7, 0xBE4C, 0x0B15, 0xBE52, 0x0EDD,
 624         0xBE49, 0x8C00, 0xBE5B, 0x785C, 0xBE5C, 0x785C, 0xBE5D, 0x785C,
 625         0xBE61, 0x368A, 0xBE63, 0x9B84, 0xC456, 0xCC13, 0xC476, 0xCC13,
 626         0xBE65, 0x307D, 0xBE6D, 0x0005, 0xBE6E, 0xE120, 0xBE2E, 0x7BAF,
 627 };
 628
 629 /* This v1 init sequence is from Belkin F5D8235 U-Boot release */
 630 static const u16 rtl8366rb_init_jam_ver_1[] = {
 631         0x0000, 0x0830, 0x0001, 0x8000, 0x0400, 0x8130, 0xBE78, 0x3C3C,
 632         0x0431, 0x5432, 0xBE37, 0x0CE4, 0x02FA, 0xFFDF, 0x02FB, 0xFFE0,
 633         0xC44C, 0x1585, 0xC44C, 0x1185, 0xC44C, 0x1585, 0xC46C, 0x1585,
 634         0xC46C, 0x1185, 0xC46C, 0x1585, 0xC451, 0x2135, 0xC471, 0x2135,
 635         0xBE10, 0x8140, 0xBE15, 0x0007, 0xBE6E, 0xE120, 0xBE69, 0xD20F,
 636         0xBE6B, 0x0320, 0xBE24, 0xB000, 0xBE23, 0xFF51, 0xBE22, 0xDF20,
 637         0xBE21, 0x0140, 0xBE20, 0x00BB, 0xBE24, 0xB800, 0xBE24, 0x0000,
 638         0xBE24, 0x7000, 0xBE23, 0xFF51, 0xBE22, 0xDF60, 0xBE21, 0x0140,
 639         0xBE20, 0x0077, 0xBE24, 0x7800, 0xBE24, 0x0000, 0xBE2E, 0x7B7A,
 640         0xBE36, 0x0CE4, 0x02F5, 0x0048, 0xBE77, 0x2940, 0x000A, 0x83E0,
 641         0xBE79, 0x3C3C, 0xBE00, 0x1340,
 642 };
 643
 644 /* This v2 init sequence is from Belkin F5D8235 U-Boot release */
 645 static const u16 rtl8366rb_init_jam_ver_2[] = {
 646         0x0450, 0x0000, 0x0400, 0x8130, 0x000A, 0x83ED, 0x0431, 0x5432,
 647         0xC44F, 0x6250, 0xC46F, 0x6250, 0xC456, 0x0C14, 0xC476, 0x0C14,
 648         0xC44C, 0x1C85, 0xC44C, 0x1885, 0xC44C, 0x1C85, 0xC46C, 0x1C85,
 649         0xC46C, 0x1885, 0xC46C, 0x1C85, 0xC44C, 0x0885, 0xC44C, 0x0881,
 650         0xC44C, 0x0885, 0xC46C, 0x0885, 0xC46C, 0x0881, 0xC46C, 0x0885,
 651         0xBE2E, 0x7BA7, 0xBE36, 0x1000, 0xBE37, 0x1000, 0x8000, 0x0001,
 652         0xBE69, 0xD50F, 0x8000, 0x0000, 0xBE69, 0xD50F, 0xBE6E, 0x0320,
 653         0xBE77, 0x2940, 0xBE78, 0x3C3C, 0xBE79, 0x3C3C, 0xBE6E, 0xE120,
 654         0x8000, 0x0001, 0xBE15, 0x1007, 0x8000, 0x0000, 0xBE15, 0x1007,
 655         0xBE14, 0x0448, 0xBE1E, 0x00A0, 0xBE10, 0x8160, 0xBE10, 0x8140,
 656         0xBE00, 0x1340, 0x0F51, 0x0010,
 657 };
 658
 659 /* Appears in a DDWRT code dump */
 660 static const u16 rtl8366rb_init_jam_ver_3[] = {
 661         0x0000, 0x0830, 0x0400, 0x8130, 0x000A, 0x83ED, 0x0431, 0x5432,
 662         0x0F51, 0x0017, 0x02F5, 0x0048, 0x02FA, 0xFFDF, 0x02FB, 0xFFE0,
 663         0xC456, 0x0C14, 0xC476, 0x0C14, 0xC454, 0x3F8B, 0xC474, 0x3F8B,
 664         0xC450, 0x2071, 0xC470, 0x2071, 0xC451, 0x226B, 0xC471, 0x226B,
 665         0xC452, 0xA293, 0xC472, 0xA293, 0xC44C, 0x1585, 0xC44C, 0x1185,
 666         0xC44C, 0x1585, 0xC46C, 0x1585, 0xC46C, 0x1185, 0xC46C, 0x1585,
 667         0xC44C, 0x0185, 0xC44C, 0x0181, 0xC44C, 0x0185, 0xC46C, 0x0185,
 668         0xC46C, 0x0181, 0xC46C, 0x0185, 0xBE24, 0xB000, 0xBE23, 0xFF51,
 669         0xBE22, 0xDF20, 0xBE21, 0x0140, 0xBE20, 0x00BB, 0xBE24, 0xB800,
 670         0xBE24, 0x0000, 0xBE24, 0x7000, 0xBE23, 0xFF51, 0xBE22, 0xDF60,
 671         0xBE21, 0x0140, 0xBE20, 0x0077, 0xBE24, 0x7800, 0xBE24, 0x0000,
 672         0xBE2E, 0x7BA7, 0xBE36, 0x1000, 0xBE37, 0x1000, 0x8000, 0x0001,
 673         0xBE69, 0xD50F, 0x8000, 0x0000, 0xBE69, 0xD50F, 0xBE6B, 0x0320,
 674         0xBE77, 0x2800, 0xBE78, 0x3C3C, 0xBE79, 0x3C3C, 0xBE6E, 0xE120,
 675         0x8000, 0x0001, 0xBE10, 0x8140, 0x8000, 0x0000, 0xBE10, 0x8140,
 676         0xBE15, 0x1007, 0xBE14, 0x0448, 0xBE1E, 0x00A0, 0xBE10, 0x8160,
 677         0xBE10, 0x8140, 0xBE00, 0x1340, 0x0450, 0x0000, 0x0401, 0x0000,
 678 };
 679
 680 /* Belkin F5D8235 v1, "belkin,f5d8235-v1" */
 681 static const u16 rtl8366rb_init_jam_f5d8235[] = {
 682         0x0242, 0x02BF, 0x0245, 0x02BF, 0x0248, 0x02BF, 0x024B, 0x02BF,
 683         0x024E, 0x02BF, 0x0251, 0x02BF, 0x0254, 0x0A3F, 0x0256, 0x0A3F,
 684         0x0258, 0x0A3F, 0x025A, 0x0A3F, 0x025C, 0x0A3F, 0x025E, 0x0A3F,
 685         0x0263, 0x007C, 0x0100, 0x0004, 0xBE5B, 0x3500, 0x800E, 0x200F,
 686         0xBE1D, 0x0F00, 0x8001, 0x5011, 0x800A, 0xA2F4, 0x800B, 0x17A3,
 687         0xBE4B, 0x17A3, 0xBE41, 0x5011, 0xBE17, 0x2100, 0x8000, 0x8304,
 688         0xBE40, 0x8304, 0xBE4A, 0xA2F4, 0x800C, 0xA8D5, 0x8014, 0x5500,
 689         0x8015, 0x0004, 0xBE4C, 0xA8D5, 0xBE59, 0x0008, 0xBE09, 0x0E00,
 690         0xBE36, 0x1036, 0xBE37, 0x1036, 0x800D, 0x00FF, 0xBE4D, 0x00FF,
 691 };
 692
 693 /* DGN3500, "netgear,dgn3500", "netgear,dgn3500b" */
 694 static const u16 rtl8366rb_init_jam_dgn3500[] = {
 695         0x0000, 0x0830, 0x0400, 0x8130, 0x000A, 0x83ED, 0x0F51, 0x0017,
 696         0x02F5, 0x0048, 0x02FA, 0xFFDF, 0x02FB, 0xFFE0, 0x0450, 0x0000,
 697         0x0401, 0x0000, 0x0431, 0x0960,
 698 };
 699
 700 /* This jam table activates "green ethernet", which means low power mode
 701  * and is claimed to detect the cable length and not use more power than
 702  * necessary, and the ports should enter power saving mode 10 seconds after
 703  * a cable is disconnected. Seems to always be the same.
 704  */
 705 static const u16 rtl8366rb_green_jam[][2] = {
 706         {0xBE78, 0x323C}, {0xBE77, 0x5000}, {0xBE2E, 0x7BA7},
 707         {0xBE59, 0x3459}, {0xBE5A, 0x745A}, {0xBE5B, 0x785C},
 708         {0xBE5C, 0x785C}, {0xBE6E, 0xE120}, {0xBE79, 0x323C},
 709 };
 710
 711 static int rtl8366rb_setup(struct dsa_switch *ds)
 712 {
 713         struct realtek_smi *smi = ds->priv;
 714         const u16 *jam_table;
 715         u32 chip_ver = 0;
 716         u32 chip_id = 0;
 717         int jam_size;
 718         u32 val;
 719         int ret;
 720         int i;
 721
 722         ret = regmap_read(smi->map, RTL8366RB_CHIP_ID_REG, &chip_id);
 723         if (ret) {
 724                 dev_err(smi->dev, "unable to read chip id\n");
 725                 return ret;
 726         }
 727
 728         switch (chip_id) {
 729         case RTL8366RB_CHIP_ID_8366:
 730                 break;
 731         default:
 732                 dev_err(smi->dev, "unknown chip id (%04x)\n", chip_id);
 733                 return -ENODEV;
 734         }
 735
 736         ret = regmap_read(smi->map, RTL8366RB_CHIP_VERSION_CTRL_REG,
 737                           &chip_ver);
 738         if (ret) {
 739                 dev_err(smi->dev, "unable to read chip version\n");
 740                 return ret;
 741         }
 742
 743         dev_info(smi->dev, "RTL%04x ver %u chip found\n",
 744                  chip_id, chip_ver & RTL8366RB_CHIP_VERSION_MASK);
 745
 746         /* Do the init dance using the right jam table */
 747         switch (chip_ver) {
 748         case 0:
 749                 jam_table = rtl8366rb_init_jam_ver_0;
 750                 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_0);
 751                 break;
 752         case 1:
 753                 jam_table = rtl8366rb_init_jam_ver_1;
 754                 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_1);
 755                 break;
 756         case 2:
 757                 jam_table = rtl8366rb_init_jam_ver_2;
 758                 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_2);
 759                 break;
 760         default:
 761                 jam_table = rtl8366rb_init_jam_ver_3;
 762                 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_3);
 763                 break;
 764         }
 765
 766         /* Special jam tables for special routers
 767          * TODO: are these necessary? Maintainers, please test
 768          * without them, using just the off-the-shelf tables.
 769          */
 770         if (of_machine_is_compatible("belkin,f5d8235-v1")) {
 771                 jam_table = rtl8366rb_init_jam_f5d8235;
 772                 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_f5d8235);
 773         }
 774         if (of_machine_is_compatible("netgear,dgn3500") ||
 775             of_machine_is_compatible("netgear,dgn3500b")) {
 776                 jam_table = rtl8366rb_init_jam_dgn3500;
 777                 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_dgn3500);
 778         }
 779
 780         i = 0;
 781         while (i < jam_size) {
 782                 if ((jam_table[i] & 0xBE00) == 0xBE00) {
 783                         ret = regmap_read(smi->map,
 784                                           RTL8366RB_PHY_ACCESS_BUSY_REG,
 785                                           &val);
 786                         if (ret)
 787                                 return ret;
 788                         if (!(val & RTL8366RB_PHY_INT_BUSY)) {
 789                                 ret = regmap_write(smi->map,
 790                                                 RTL8366RB_PHY_ACCESS_CTRL_REG,
 791                                                 RTL8366RB_PHY_CTRL_WRITE);
 792                                 if (ret)
 793                                         return ret;
 794                         }
 795                 }
 796                 dev_dbg(smi->dev, "jam %04x into register %04x\n",
 797                         jam_table[i + 1],
 798                         jam_table[i]);
 799                 ret = regmap_write(smi->map,
 800                                    jam_table[i],
 801                                    jam_table[i + 1]);
 802                 if (ret)
 803                         return ret;
 804                 i += 2;
 805         }
 806
 807         /* Set up the "green ethernet" feature */
 808         i = 0;
 809         while (i < ARRAY_SIZE(rtl8366rb_green_jam)) {
 810                 ret = regmap_read(smi->map, RTL8366RB_PHY_ACCESS_BUSY_REG,
 811                                   &val);
 812                 if (ret)
 813                         return ret;
 814                 if (!(val & RTL8366RB_PHY_INT_BUSY)) {
 815                         ret = regmap_write(smi->map,
 816                                            RTL8366RB_PHY_ACCESS_CTRL_REG,
 817                                            RTL8366RB_PHY_CTRL_WRITE);
 818                         if (ret)
 819                                 return ret;
 820                         ret = regmap_write(smi->map,
 821                                            rtl8366rb_green_jam[i][0],
 822                                            rtl8366rb_green_jam[i][1]);
 823                         if (ret)
 824                                 return ret;
 825                         i++;
 826                 }
 827         }
 828         ret = regmap_write(smi->map,
 829                            RTL8366RB_GREEN_FEATURE_REG,
 830                            (chip_ver == 1) ? 0x0007 : 0x0003);
 831         if (ret)
 832                 return ret;
 833
 834         /* Vendor driver sets 0x240 in registers 0xc and 0xd (undocumented) */
 835         ret = regmap_write(smi->map, 0x0c, 0x240);
 836         if (ret)
 837                 return ret;
 838         ret = regmap_write(smi->map, 0x0d, 0x240);
 839         if (ret)
 840                 return ret;
 841
 842         /* Set some random MAC address */
 843         ret = rtl8366rb_set_addr(smi);
 844         if (ret)
 845                 return ret;
 846
 847         /* Enable CPU port and enable inserting CPU tag
 848          *
 849          * Disabling RTL8368RB_CPU_INSTAG here will change the behaviour
 850          * of the switch totally and it will start talking Realtek RRCP
 851          * internally. It is probably possible to experiment with this,
 852          * but then the kernel needs to understand and handle RRCP first.
 853          */
 854         ret = regmap_update_bits(smi->map, RTL8368RB_CPU_CTRL_REG,
 855                                  0xFFFF,
 856                                  RTL8368RB_CPU_INSTAG | BIT(smi->cpu_port));
 857         if (ret)
 858                 return ret;
 859
 860         /* Make sure we default-enable the fixed CPU port */
 861         ret = regmap_update_bits(smi->map, RTL8366RB_PECR,
 862                                  BIT(smi->cpu_port),
 863                                  0);
 864         if (ret)
 865                 return ret;
 866
 867         /* Set maximum packet length to 1536 bytes */
 868         ret = regmap_update_bits(smi->map, RTL8366RB_SGCR,
 869                                  RTL8366RB_SGCR_MAX_LENGTH_MASK,
 870                                  RTL8366RB_SGCR_MAX_LENGTH_1536);
 871         if (ret)
 872                 return ret;
 873
 874         /* Enable learning for all ports */
 875         ret = regmap_write(smi->map, RTL8366RB_SSCR0, 0);
 876         if (ret)
 877                 return ret;
 878
 879         /* Enable auto ageing for all ports */
 880         ret = regmap_write(smi->map, RTL8366RB_SSCR1, 0);
 881         if (ret)
 882                 return ret;
 883
 884         /* Port 4 setup: this enables Port 4, usually the WAN port,
 885          * common PHY IO mode is apparently mode 0, and this is not what
 886          * the port is initialized to. There is no explanation of the
 887          * IO modes in the Realtek source code, if your WAN port is
 888          * connected to something exotic such as fiber, then this might
 889          * be worth experimenting with.
 890          */
 891         ret = regmap_update_bits(smi->map, RTL8366RB_PMC0,
 892                                  RTL8366RB_PMC0_P4_IOMODE_MASK,
 893                                  0 << RTL8366RB_PMC0_P4_IOMODE_SHIFT);
 894         if (ret)
 895                 return ret;
 896
 897         /* Discard VLAN tagged packets if the port is not a member of
 898          * the VLAN with which the packets is associated.
 899          */
 900         ret = regmap_write(smi->map, RTL8366RB_VLAN_INGRESS_CTRL2_REG,
 901                            RTL8366RB_PORT_ALL);
 902         if (ret)
 903                 return ret;
 904
 905         /* Don't drop packets whose DA has not been learned */
 906         ret = regmap_update_bits(smi->map, RTL8366RB_SSCR2,
 907                                  RTL8366RB_SSCR2_DROP_UNKNOWN_DA, 0);
 908         if (ret)
 909                 return ret;
 910
 911         /* Set blinking, TODO: make this configurable */
 912         ret = regmap_update_bits(smi->map, RTL8366RB_LED_BLINKRATE_REG,
 913                                  RTL8366RB_LED_BLINKRATE_MASK,
 914                                  RTL8366RB_LED_BLINKRATE_56MS);
 915         if (ret)
 916                 return ret;
 917
 918         /* Set up LED activity:
 919          * Each port has 4 LEDs, we configure all ports to the same
 920          * behaviour (no individual config) but we can set up each
 921          * LED separately.
 922          */
 923         if (smi->leds_disabled) {
 924                 /* Turn everything off */
 925                 regmap_update_bits(smi->map,
 926                                    RTL8366RB_LED_0_1_CTRL_REG,
 927                                    0x0FFF, 0);
 928                 regmap_update_bits(smi->map,
 929                                    RTL8366RB_LED_2_3_CTRL_REG,
 930                                    0x0FFF, 0);
 931                 regmap_update_bits(smi->map,
 932                                    RTL8366RB_INTERRUPT_CONTROL_REG,
 933                                    RTL8366RB_P4_RGMII_LED,
 934                                    0);
 935                 val = RTL8366RB_LED_OFF;
 936         } else {
 937                 /* TODO: make this configurable per LED */
 938                 val = RTL8366RB_LED_FORCE;
 939         }
 940         for (i = 0; i < 4; i++) {
 941                 ret = regmap_update_bits(smi->map,
 942                                          RTL8366RB_LED_CTRL_REG,
 943                                          0xf << (i * 4),
 944                                          val << (i * 4));
 945                 if (ret)
 946                         return ret;
 947         }
 948
 949         ret = rtl8366_init_vlan(smi);
 950         if (ret)
 951                 return ret;
 952
 953         ret = rtl8366rb_setup_cascaded_irq(smi);
 954         if (ret)
 955                 dev_info(smi->dev, "no interrupt support\n");
 956
 957         ret = realtek_smi_setup_mdio(smi);
 958         if (ret) {
 959                 dev_info(smi->dev, "could not set up MDIO bus\n");
 960                 return -ENODEV;
 961         }
 962
 963         return 0;
 964 }
 965
 966 static enum dsa_tag_protocol rtl8366_get_tag_protocol(struct dsa_switch *ds,
 967                                                       int port)
 968 {
 969         /* For now, the RTL switches are handled without any custom tags.
 970          *
 971          * It is possible to turn on "custom tags" by removing the
 972          * RTL8368RB_CPU_INSTAG flag when enabling the port but what it
 973          * does is unfamiliar to DSA: ethernet frames of type 8899, the Realtek
 974          * Remote Control Protocol (RRCP) start to appear on the CPU port of
 975          * the device. So this is not the ordinary few extra bytes in the
 976          * frame. Instead it appears that the switch starts to talk Realtek
 977          * RRCP internally which means a pretty complex RRCP implementation
 978          * decoding and responding the RRCP protocol is needed to exploit this.
 979          *
 980          * The OpenRRCP project (dormant since 2009) have reverse-egineered
 981          * parts of the protocol.
 982          */
 983         return DSA_TAG_PROTO_NONE;
 984 }
 985
 986 static void rtl8366rb_adjust_link(struct dsa_switch *ds, int port,
 987                                   struct phy_device *phydev)
 988 {
 989         struct realtek_smi *smi = ds->priv;
 990         int ret;
 991
 992         if (port != smi->cpu_port)
 993                 return;
 994
 995         dev_info(smi->dev, "adjust link on CPU port (%d)\n", port);
 996
 997         /* Force the fixed CPU port into 1Gbit mode, no autonegotiation */
 998         ret = regmap_update_bits(smi->map, RTL8366RB_MAC_FORCE_CTRL_REG,
 999                                  BIT(port), BIT(port));
1000         if (ret)
1001                 return;
1002
1003         ret = regmap_update_bits(smi->map, RTL8366RB_PAACR2,
1004                                  0xFF00U,
1005                                  RTL8366RB_PAACR_CPU_PORT << 8);
1006         if (ret)
1007                 return;
1008
1009         /* Enable the CPU port */
1010         ret = regmap_update_bits(smi->map, RTL8366RB_PECR, BIT(port),
1011                                  0);
1012         if (ret)
1013                 return;
1014 }
1015
1016 static void rb8366rb_set_port_led(struct realtek_smi *smi,
1017                                   int port, bool enable)
1018 {
1019         u16 val = enable ? 0x3f : 0;
1020         int ret;
1021
1022         if (smi->leds_disabled)
1023                 return;
1024
1025         switch (port) {
1026         case 0:
1027                 ret = regmap_update_bits(smi->map,
1028                                          RTL8366RB_LED_0_1_CTRL_REG,
1029                                          0x3F, val);
1030                 break;
1031         case 1:
1032                 ret = regmap_update_bits(smi->map,
1033                                          RTL8366RB_LED_0_1_CTRL_REG,
1034                                          0x3F << RTL8366RB_LED_1_OFFSET,
1035                                          val << RTL8366RB_LED_1_OFFSET);
1036                 break;
1037         case 2:
1038                 ret = regmap_update_bits(smi->map,
1039                                          RTL8366RB_LED_2_3_CTRL_REG,
1040                                          0x3F, val);
1041                 break;
1042         case 3:
1043                 ret = regmap_update_bits(smi->map,
1044                                          RTL8366RB_LED_2_3_CTRL_REG,
1045                                          0x3F << RTL8366RB_LED_3_OFFSET,
1046                                          val << RTL8366RB_LED_3_OFFSET);
1047                 break;
1048         case 4:
1049                 ret = regmap_update_bits(smi->map,
1050                                          RTL8366RB_INTERRUPT_CONTROL_REG,
1051                                          RTL8366RB_P4_RGMII_LED,
1052                                          enable ? RTL8366RB_P4_RGMII_LED : 0);
1053                 break;
1054         default:
1055                 dev_err(smi->dev, "no LED for port %d\n", port);
1056                 return;
1057         }
1058         if (ret)
1059                 dev_err(smi->dev, "error updating LED on port %d\n", port);
1060 }
1061
1062 static int
1063 rtl8366rb_port_enable(struct dsa_switch *ds, int port,
1064                       struct phy_device *phy)
1065 {
1066         struct realtek_smi *smi = ds->priv;
1067         int ret;
1068
1069         dev_dbg(smi->dev, "enable port %d\n", port);
1070         ret = regmap_update_bits(smi->map, RTL8366RB_PECR, BIT(port),
1071                                  0);
1072         if (ret)
1073                 return ret;
1074
1075         rb8366rb_set_port_led(smi, port, true);
1076         return 0;
1077 }
1078
1079 static void
1080 rtl8366rb_port_disable(struct dsa_switch *ds, int port,
1081                        struct phy_device *phy)
1082 {
1083         struct realtek_smi *smi = ds->priv;
1084         int ret;
1085
1086         dev_dbg(smi->dev, "disable port %d\n", port);
1087         ret = regmap_update_bits(smi->map, RTL8366RB_PECR, BIT(port),
1088                                  BIT(port));
1089         if (ret)
1090                 return;
1091
1092         rb8366rb_set_port_led(smi, port, false);
1093 }
1094
1095 static int rtl8366rb_get_vlan_4k(struct realtek_smi *smi, u32 vid,
1096                                  struct rtl8366_vlan_4k *vlan4k)
1097 {
1098         u32 data[3];
1099         int ret;
1100         int i;
1101
1102         memset(vlan4k, '\0', sizeof(struct rtl8366_vlan_4k));
1103
1104         if (vid >= RTL8366RB_NUM_VIDS)
1105                 return -EINVAL;
1106
1107         /* write VID */
1108         ret = regmap_write(smi->map, RTL8366RB_VLAN_TABLE_WRITE_BASE,
1109                            vid & RTL8366RB_VLAN_VID_MASK);
1110         if (ret)
1111                 return ret;
1112
1113         /* write table access control word */
1114         ret = regmap_write(smi->map, RTL8366RB_TABLE_ACCESS_CTRL_REG,
1115                            RTL8366RB_TABLE_VLAN_READ_CTRL);
1116         if (ret)
1117                 return ret;
1118
1119         for (i = 0; i < 3; i++) {
1120                 ret = regmap_read(smi->map,
1121                                   RTL8366RB_VLAN_TABLE_READ_BASE + i,
1122                                   &data[i]);
1123                 if (ret)
1124                         return ret;
1125         }
1126
1127         vlan4k->vid = vid;
1128         vlan4k->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) &
1129                         RTL8366RB_VLAN_UNTAG_MASK;
1130         vlan4k->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK;
1131         vlan4k->fid = data[2] & RTL8366RB_VLAN_FID_MASK;
1132
1133         return 0;
1134 }
1135
1136 static int rtl8366rb_set_vlan_4k(struct realtek_smi *smi,
1137                                  const struct rtl8366_vlan_4k *vlan4k)
1138 {
1139         u32 data[3];
1140         int ret;
1141         int i;
1142
1143         if (vlan4k->vid >= RTL8366RB_NUM_VIDS ||
1144             vlan4k->member > RTL8366RB_VLAN_MEMBER_MASK ||
1145             vlan4k->untag > RTL8366RB_VLAN_UNTAG_MASK ||
1146             vlan4k->fid > RTL8366RB_FIDMAX)
1147                 return -EINVAL;
1148
1149         data[0] = vlan4k->vid & RTL8366RB_VLAN_VID_MASK;
1150         data[1] = (vlan4k->member & RTL8366RB_VLAN_MEMBER_MASK) |
1151                   ((vlan4k->untag & RTL8366RB_VLAN_UNTAG_MASK) <<
1152                         RTL8366RB_VLAN_UNTAG_SHIFT);
1153         data[2] = vlan4k->fid & RTL8366RB_VLAN_FID_MASK;
1154
1155         for (i = 0; i < 3; i++) {
1156                 ret = regmap_write(smi->map,
1157                                    RTL8366RB_VLAN_TABLE_WRITE_BASE + i,
1158                                    data[i]);
1159                 if (ret)
1160                         return ret;
1161         }
1162
1163         /* write table access control word */
1164         ret = regmap_write(smi->map, RTL8366RB_TABLE_ACCESS_CTRL_REG,
1165                            RTL8366RB_TABLE_VLAN_WRITE_CTRL);
1166
1167         return ret;
1168 }
1169
1170 static int rtl8366rb_get_vlan_mc(struct realtek_smi *smi, u32 index,
1171                                  struct rtl8366_vlan_mc *vlanmc)
1172 {
1173         u32 data[3];
1174         int ret;
1175         int i;
1176
1177         memset(vlanmc, '\0', sizeof(struct rtl8366_vlan_mc));
1178
1179         if (index >= RTL8366RB_NUM_VLANS)
1180                 return -EINVAL;
1181
1182         for (i = 0; i < 3; i++) {
1183                 ret = regmap_read(smi->map,
1184                                   RTL8366RB_VLAN_MC_BASE(index) + i,
1185                                   &data[i]);
1186                 if (ret)
1187                         return ret;
1188         }
1189
1190         vlanmc->vid = data[0] & RTL8366RB_VLAN_VID_MASK;
1191         vlanmc->priority = (data[0] >> RTL8366RB_VLAN_PRIORITY_SHIFT) &
1192                 RTL8366RB_VLAN_PRIORITY_MASK;
1193         vlanmc->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) &
1194                 RTL8366RB_VLAN_UNTAG_MASK;
1195         vlanmc->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK;
1196         vlanmc->fid = data[2] & RTL8366RB_VLAN_FID_MASK;
1197
1198         return 0;
1199 }
1200
1201 static int rtl8366rb_set_vlan_mc(struct realtek_smi *smi, u32 index,
1202                                  const struct rtl8366_vlan_mc *vlanmc)
1203 {
1204         u32 data[3];
1205         int ret;
1206         int i;
1207
1208         if (index >= RTL8366RB_NUM_VLANS ||
1209             vlanmc->vid >= RTL8366RB_NUM_VIDS ||
1210             vlanmc->priority > RTL8366RB_PRIORITYMAX ||
1211             vlanmc->member > RTL8366RB_VLAN_MEMBER_MASK ||
1212             vlanmc->untag > RTL8366RB_VLAN_UNTAG_MASK ||
1213             vlanmc->fid > RTL8366RB_FIDMAX)
1214                 return -EINVAL;
1215
1216         data[0] = (vlanmc->vid & RTL8366RB_VLAN_VID_MASK) |
1217                   ((vlanmc->priority & RTL8366RB_VLAN_PRIORITY_MASK) <<
1218                         RTL8366RB_VLAN_PRIORITY_SHIFT);
1219         data[1] = (vlanmc->member & RTL8366RB_VLAN_MEMBER_MASK) |
1220                   ((vlanmc->untag & RTL8366RB_VLAN_UNTAG_MASK) <<
1221                         RTL8366RB_VLAN_UNTAG_SHIFT);
1222         data[2] = vlanmc->fid & RTL8366RB_VLAN_FID_MASK;
1223
1224         for (i = 0; i < 3; i++) {
1225                 ret = regmap_write(smi->map,
1226                                    RTL8366RB_VLAN_MC_BASE(index) + i,
1227                                    data[i]);
1228                 if (ret)
1229                         return ret;
1230         }
1231
1232         return 0;
1233 }
1234
1235 static int rtl8366rb_get_mc_index(struct realtek_smi *smi, int port, int *val)
1236 {
1237         u32 data;
1238         int ret;
1239
1240         if (port >= smi->num_ports)
1241                 return -EINVAL;
1242
1243         ret = regmap_read(smi->map, RTL8366RB_PORT_VLAN_CTRL_REG(port),
1244                           &data);
1245         if (ret)
1246                 return ret;
1247
1248         *val = (data >> RTL8366RB_PORT_VLAN_CTRL_SHIFT(port)) &
1249                 RTL8366RB_PORT_VLAN_CTRL_MASK;
1250
1251         return 0;
1252 }
1253
1254 static int rtl8366rb_set_mc_index(struct realtek_smi *smi, int port, int index)
1255 {
1256         if (port >= smi->num_ports || index >= RTL8366RB_NUM_VLANS)
1257                 return -EINVAL;
1258
1259         return regmap_update_bits(smi->map, RTL8366RB_PORT_VLAN_CTRL_REG(port),
1260                                 RTL8366RB_PORT_VLAN_CTRL_MASK <<
1261                                         RTL8366RB_PORT_VLAN_CTRL_SHIFT(port),
1262                                 (index & RTL8366RB_PORT_VLAN_CTRL_MASK) <<
1263                                         RTL8366RB_PORT_VLAN_CTRL_SHIFT(port));
1264 }
1265
1266 static bool rtl8366rb_is_vlan_valid(struct realtek_smi *smi, unsigned int vlan)
1267 {
1268         unsigned int max = RTL8366RB_NUM_VLANS - 1;
1269
1270         if (smi->vlan4k_enabled)
1271                 max = RTL8366RB_NUM_VIDS - 1;
1272
1273         if (vlan == 0 || vlan > max)
1274                 return false;
1275
1276         return true;
1277 }
1278
1279 static int rtl8366rb_enable_vlan(struct realtek_smi *smi, bool enable)
1280 {
1281         dev_dbg(smi->dev, "%s VLAN\n", enable ? "enable" : "disable");
1282         return regmap_update_bits(smi->map,
1283                                   RTL8366RB_SGCR, RTL8366RB_SGCR_EN_VLAN,
1284                                   enable ? RTL8366RB_SGCR_EN_VLAN : 0);
1285 }
1286
1287 static int rtl8366rb_enable_vlan4k(struct realtek_smi *smi, bool enable)
1288 {
1289         dev_dbg(smi->dev, "%s VLAN 4k\n", enable ? "enable" : "disable");
1290         return regmap_update_bits(smi->map, RTL8366RB_SGCR,
1291                                   RTL8366RB_SGCR_EN_VLAN_4KTB,
1292                                   enable ? RTL8366RB_SGCR_EN_VLAN_4KTB : 0);
1293 }
1294
1295 static int rtl8366rb_phy_read(struct realtek_smi *smi, int phy, int regnum)
1296 {
1297         u32 val;
1298         u32 reg;
1299         int ret;
1300
1301         if (phy > RTL8366RB_PHY_NO_MAX)
1302                 return -EINVAL;
1303
1304         ret = regmap_write(smi->map, RTL8366RB_PHY_ACCESS_CTRL_REG,
1305                            RTL8366RB_PHY_CTRL_READ);
1306         if (ret)
1307                 return ret;
1308
1309         reg = 0x8000 | (1 << (phy + RTL8366RB_PHY_NO_OFFSET)) | regnum;
1310
1311         ret = regmap_write(smi->map, reg, 0);
1312         if (ret) {
1313                 dev_err(smi->dev,
1314                         "failed to write PHY%d reg %04x @ %04x, ret %d\n",
1315                         phy, regnum, reg, ret);
1316                 return ret;
1317         }
1318
1319         ret = regmap_read(smi->map, RTL8366RB_PHY_ACCESS_DATA_REG, &val);
1320         if (ret)
1321                 return ret;
1322
1323         dev_dbg(smi->dev, "read PHY%d register 0x%04x @ %08x, val <- %04x\n",
1324                 phy, regnum, reg, val);
1325
1326         return val;
1327 }
1328
1329 static int rtl8366rb_phy_write(struct realtek_smi *smi, int phy, int regnum,
1330                                u16 val)
1331 {
1332         u32 reg;
1333         int ret;
1334
1335         if (phy > RTL8366RB_PHY_NO_MAX)
1336                 return -EINVAL;
1337
1338         ret = regmap_write(smi->map, RTL8366RB_PHY_ACCESS_CTRL_REG,
1339                            RTL8366RB_PHY_CTRL_WRITE);
1340         if (ret)
1341                 return ret;
1342
1343         reg = 0x8000 | (1 << (phy + RTL8366RB_PHY_NO_OFFSET)) | regnum;
1344
1345         dev_dbg(smi->dev, "write PHY%d register 0x%04x @ %04x, val -> %04x\n",
1346                 phy, regnum, reg, val);
1347
1348         ret = regmap_write(smi->map, reg, val);
1349         if (ret)
1350                 return ret;
1351
1352         return 0;
1353 }
1354
1355 static int rtl8366rb_reset_chip(struct realtek_smi *smi)
1356 {
1357         int timeout = 10;
1358         u32 val;
1359         int ret;
1360
1361         realtek_smi_write_reg_noack(smi, RTL8366RB_RESET_CTRL_REG,
1362                                     RTL8366RB_CHIP_CTRL_RESET_HW);
1363         do {
1364                 usleep_range(20000, 25000);
1365                 ret = regmap_read(smi->map, RTL8366RB_RESET_CTRL_REG, &val);
1366                 if (ret)
1367                         return ret;
1368
1369                 if (!(val & RTL8366RB_CHIP_CTRL_RESET_HW))
1370                         break;
1371         } while (--timeout);
1372
1373         if (!timeout) {
1374                 dev_err(smi->dev, "timeout waiting for the switch to reset\n");
1375                 return -EIO;
1376         }
1377
1378         return 0;
1379 }
1380
1381 static int rtl8366rb_detect(struct realtek_smi *smi)
1382 {
1383         struct device *dev = smi->dev;
1384         int ret;
1385         u32 val;
1386
1387         /* Detect device */
1388         ret = regmap_read(smi->map, 0x5c, &val);
1389         if (ret) {
1390                 dev_err(dev, "can't get chip ID (%d)\n", ret);
1391                 return ret;
1392         }
1393
1394         switch (val) {
1395         case 0x6027:
1396                 dev_info(dev, "found an RTL8366S switch\n");
1397                 dev_err(dev, "this switch is not yet supported, submit patches!\n");
1398                 return -ENODEV;
1399         case 0x5937:
1400                 dev_info(dev, "found an RTL8366RB switch\n");
1401                 smi->cpu_port = RTL8366RB_PORT_NUM_CPU;
1402                 smi->num_ports = RTL8366RB_NUM_PORTS;
1403                 smi->num_vlan_mc = RTL8366RB_NUM_VLANS;
1404                 smi->mib_counters = rtl8366rb_mib_counters;
1405                 smi->num_mib_counters = ARRAY_SIZE(rtl8366rb_mib_counters);
1406                 break;
1407         default:
1408                 dev_info(dev, "found an Unknown Realtek switch (id=0x%04x)\n",
1409                          val);
1410                 break;
1411         }
1412
1413         ret = rtl8366rb_reset_chip(smi);
1414         if (ret)
1415                 return ret;
1416
1417         return 0;
1418 }
1419
1420 static const struct dsa_switch_ops rtl8366rb_switch_ops = {
1421         .get_tag_protocol = rtl8366_get_tag_protocol,
1422         .setup = rtl8366rb_setup,
1423         .adjust_link = rtl8366rb_adjust_link,
1424         .get_strings = rtl8366_get_strings,
1425         .get_ethtool_stats = rtl8366_get_ethtool_stats,
1426         .get_sset_count = rtl8366_get_sset_count,
1427         .port_vlan_filtering = rtl8366_vlan_filtering,
1428         .port_vlan_prepare = rtl8366_vlan_prepare,
1429         .port_vlan_add = rtl8366_vlan_add,
1430         .port_vlan_del = rtl8366_vlan_del,
1431         .port_enable = rtl8366rb_port_enable,
1432         .port_disable = rtl8366rb_port_disable,
1433 };
1434
1435 static const struct realtek_smi_ops rtl8366rb_smi_ops = {
1436         .detect         = rtl8366rb_detect,
1437         .get_vlan_mc    = rtl8366rb_get_vlan_mc,
1438         .set_vlan_mc    = rtl8366rb_set_vlan_mc,
1439         .get_vlan_4k    = rtl8366rb_get_vlan_4k,
1440         .set_vlan_4k    = rtl8366rb_set_vlan_4k,
1441         .get_mc_index   = rtl8366rb_get_mc_index,
1442         .set_mc_index   = rtl8366rb_set_mc_index,
1443         .get_mib_counter = rtl8366rb_get_mib_counter,
1444         .is_vlan_valid  = rtl8366rb_is_vlan_valid,
1445         .enable_vlan    = rtl8366rb_enable_vlan,
1446         .enable_vlan4k  = rtl8366rb_enable_vlan4k,
1447         .phy_read       = rtl8366rb_phy_read,
1448         .phy_write      = rtl8366rb_phy_write,
1449 };
1450
1451 const struct realtek_smi_variant rtl8366rb_variant = {
1452         .ds_ops = &rtl8366rb_switch_ops,
1453         .ops = &rtl8366rb_smi_ops,
1454         .clk_delay = 10,
1455         .cmd_read = 0xa9,
1456         .cmd_write = 0xa8,
1457 };
1458 EXPORT_SYMBOL_GPL(rtl8366rb_variant);