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/if_bridge.h> 18 #include <linux/if_vlan.h> 19 #include <linux/interrupt.h> 20 #include <linux/irqdomain.h> 21 #include <linux/irqchip/chained_irq.h> 22 #include <linux/of_irq.h> 23 #include <linux/regmap.h> 24 25 #include "realtek.h" 26 #include "realtek-smi.h" 27 #include "realtek-mdio.h" 28 #include "rtl83xx.h" 29 30 #define RTL8366RB_PORT_NUM_CPU 5 31 #define RTL8366RB_NUM_PORTS 6 32 #define RTL8366RB_PHY_NO_MAX 4 33 #define RTL8366RB_PHY_ADDR_MAX 31 34 35 /* Switch Global Configuration register */ 36 #define RTL8366RB_SGCR 0x0000 37 #define RTL8366RB_SGCR_EN_BC_STORM_CTRL BIT(0) 38 #define RTL8366RB_SGCR_MAX_LENGTH(a) ((a) << 4) 39 #define RTL8366RB_SGCR_MAX_LENGTH_MASK RTL8366RB_SGCR_MAX_LENGTH(0x3) 40 #define RTL8366RB_SGCR_MAX_LENGTH_1522 RTL8366RB_SGCR_MAX_LENGTH(0x0) 41 #define RTL8366RB_SGCR_MAX_LENGTH_1536 RTL8366RB_SGCR_MAX_LENGTH(0x1) 42 #define RTL8366RB_SGCR_MAX_LENGTH_1552 RTL8366RB_SGCR_MAX_LENGTH(0x2) 43 #define RTL8366RB_SGCR_MAX_LENGTH_16000 RTL8366RB_SGCR_MAX_LENGTH(0x3) 44 #define RTL8366RB_SGCR_EN_VLAN BIT(13) 45 #define RTL8366RB_SGCR_EN_VLAN_4KTB BIT(14) 46 47 /* Port Enable Control register */ 48 #define RTL8366RB_PECR 0x0001 49 50 /* Switch per-port learning disablement register */ 51 #define RTL8366RB_PORT_LEARNDIS_CTRL 0x0002 52 53 /* Security control, actually aging register */ 54 #define RTL8366RB_SECURITY_CTRL 0x0003 55 56 #define RTL8366RB_SSCR2 0x0004 57 #define RTL8366RB_SSCR2_DROP_UNKNOWN_DA BIT(0) 58 59 /* Port Mode Control registers */ 60 #define RTL8366RB_PMC0 0x0005 61 #define RTL8366RB_PMC0_SPI BIT(0) 62 #define RTL8366RB_PMC0_EN_AUTOLOAD BIT(1) 63 #define RTL8366RB_PMC0_PROBE BIT(2) 64 #define RTL8366RB_PMC0_DIS_BISR BIT(3) 65 #define RTL8366RB_PMC0_ADCTEST BIT(4) 66 #define RTL8366RB_PMC0_SRAM_DIAG BIT(5) 67 #define RTL8366RB_PMC0_EN_SCAN BIT(6) 68 #define RTL8366RB_PMC0_P4_IOMODE_SHIFT 7 69 #define RTL8366RB_PMC0_P4_IOMODE_MASK GENMASK(9, 7) 70 #define RTL8366RB_PMC0_P5_IOMODE_SHIFT 10 71 #define RTL8366RB_PMC0_P5_IOMODE_MASK GENMASK(12, 10) 72 #define RTL8366RB_PMC0_SDSMODE_SHIFT 13 73 #define RTL8366RB_PMC0_SDSMODE_MASK GENMASK(15, 13) 74 #define RTL8366RB_PMC1 0x0006 75 76 /* Port Mirror Control Register */ 77 #define RTL8366RB_PMCR 0x0007 78 #define RTL8366RB_PMCR_SOURCE_PORT(a) (a) 79 #define RTL8366RB_PMCR_SOURCE_PORT_MASK 0x000f 80 #define RTL8366RB_PMCR_MONITOR_PORT(a) ((a) << 4) 81 #define RTL8366RB_PMCR_MONITOR_PORT_MASK 0x00f0 82 #define RTL8366RB_PMCR_MIRROR_RX BIT(8) 83 #define RTL8366RB_PMCR_MIRROR_TX BIT(9) 84 #define RTL8366RB_PMCR_MIRROR_SPC BIT(10) 85 #define RTL8366RB_PMCR_MIRROR_ISO BIT(11) 86 87 /* bits 0..7 = port 0, bits 8..15 = port 1 */ 88 #define RTL8366RB_PAACR0 0x0010 89 /* bits 0..7 = port 2, bits 8..15 = port 3 */ 90 #define RTL8366RB_PAACR1 0x0011 91 /* bits 0..7 = port 4, bits 8..15 = port 5 */ 92 #define RTL8366RB_PAACR2 0x0012 93 #define RTL8366RB_PAACR_SPEED_10M 0 94 #define RTL8366RB_PAACR_SPEED_100M 1 95 #define RTL8366RB_PAACR_SPEED_1000M 2 96 #define RTL8366RB_PAACR_FULL_DUPLEX BIT(2) 97 #define RTL8366RB_PAACR_LINK_UP BIT(4) 98 #define RTL8366RB_PAACR_TX_PAUSE BIT(5) 99 #define RTL8366RB_PAACR_RX_PAUSE BIT(6) 100 #define RTL8366RB_PAACR_AN BIT(7) 101 102 /* bits 0..7 = port 0, bits 8..15 = port 1 */ 103 #define RTL8366RB_PSTAT0 0x0014 104 /* bits 0..7 = port 2, bits 8..15 = port 3 */ 105 #define RTL8366RB_PSTAT1 0x0015 106 /* bits 0..7 = port 4, bits 8..15 = port 5 */ 107 #define RTL8366RB_PSTAT2 0x0016 108 109 #define RTL8366RB_POWER_SAVING_REG 0x0021 110 111 /* Spanning tree status (STP) control, two bits per port per FID */ 112 #define RTL8366RB_STP_STATE_BASE 0x0050 /* 0x0050..0x0057 */ 113 #define RTL8366RB_STP_STATE_DISABLED 0x0 114 #define RTL8366RB_STP_STATE_BLOCKING 0x1 115 #define RTL8366RB_STP_STATE_LEARNING 0x2 116 #define RTL8366RB_STP_STATE_FORWARDING 0x3 117 #define RTL8366RB_STP_MASK GENMASK(1, 0) 118 #define RTL8366RB_STP_STATE(port, state) \ 119 ((state) << ((port) * 2)) 120 #define RTL8366RB_STP_STATE_MASK(port) \ 121 RTL8366RB_STP_STATE((port), RTL8366RB_STP_MASK) 122 123 /* CPU port control reg */ 124 #define RTL8366RB_CPU_CTRL_REG 0x0061 125 #define RTL8366RB_CPU_PORTS_MSK 0x00FF 126 /* Disables inserting custom tag length/type 0x8899 */ 127 #define RTL8366RB_CPU_NO_TAG BIT(15) 128 #define RTL8366RB_CPU_TAG_SIZE 4 129 130 #define RTL8366RB_SMAR0 0x0070 /* bits 0..15 */ 131 #define RTL8366RB_SMAR1 0x0071 /* bits 16..31 */ 132 #define RTL8366RB_SMAR2 0x0072 /* bits 32..47 */ 133 134 #define RTL8366RB_RESET_CTRL_REG 0x0100 135 #define RTL8366RB_CHIP_CTRL_RESET_HW BIT(0) 136 #define RTL8366RB_CHIP_CTRL_RESET_SW BIT(1) 137 138 #define RTL8366RB_CHIP_ID_REG 0x0509 139 #define RTL8366RB_CHIP_ID_8366 0x5937 140 #define RTL8366RB_CHIP_VERSION_CTRL_REG 0x050A 141 #define RTL8366RB_CHIP_VERSION_MASK 0xf 142 143 /* PHY registers control */ 144 #define RTL8366RB_PHY_ACCESS_CTRL_REG 0x8000 145 #define RTL8366RB_PHY_CTRL_READ BIT(0) 146 #define RTL8366RB_PHY_CTRL_WRITE 0 147 #define RTL8366RB_PHY_ACCESS_BUSY_REG 0x8001 148 #define RTL8366RB_PHY_INT_BUSY BIT(0) 149 #define RTL8366RB_PHY_EXT_BUSY BIT(4) 150 #define RTL8366RB_PHY_ACCESS_DATA_REG 0x8002 151 #define RTL8366RB_PHY_EXT_CTRL_REG 0x8010 152 #define RTL8366RB_PHY_EXT_WRDATA_REG 0x8011 153 #define RTL8366RB_PHY_EXT_RDDATA_REG 0x8012 154 155 #define RTL8366RB_PHY_REG_MASK 0x1f 156 #define RTL8366RB_PHY_PAGE_OFFSET 5 157 #define RTL8366RB_PHY_PAGE_MASK (0xf << 5) 158 #define RTL8366RB_PHY_NO_OFFSET 9 159 #define RTL8366RB_PHY_NO_MASK (0x1f << 9) 160 161 /* VLAN Ingress Control Register 1, one bit per port. 162 * bit 0 .. 5 will make the switch drop ingress frames without 163 * VID such as untagged or priority-tagged frames for respective 164 * port. 165 * bit 6 .. 11 will make the switch drop ingress frames carrying 166 * a C-tag with VID != 0 for respective port. 167 */ 168 #define RTL8366RB_VLAN_INGRESS_CTRL1_REG 0x037E 169 #define RTL8366RB_VLAN_INGRESS_CTRL1_DROP(port) (BIT((port)) | BIT((port) + 6)) 170 171 /* VLAN Ingress Control Register 2, one bit per port. 172 * bit0 .. bit5 will make the switch drop all ingress frames with 173 * a VLAN classification that does not include the port is in its 174 * member set. 175 */ 176 #define RTL8366RB_VLAN_INGRESS_CTRL2_REG 0x037f 177 178 /* LED control registers */ 179 /* The LED blink rate is global; it is used by all triggers in all groups. */ 180 #define RTL8366RB_LED_BLINKRATE_REG 0x0430 181 #define RTL8366RB_LED_BLINKRATE_MASK 0x0007 182 #define RTL8366RB_LED_BLINKRATE_28MS 0x0000 183 #define RTL8366RB_LED_BLINKRATE_56MS 0x0001 184 #define RTL8366RB_LED_BLINKRATE_84MS 0x0002 185 #define RTL8366RB_LED_BLINKRATE_111MS 0x0003 186 #define RTL8366RB_LED_BLINKRATE_222MS 0x0004 187 #define RTL8366RB_LED_BLINKRATE_446MS 0x0005 188 189 /* LED trigger event for each group */ 190 #define RTL8366RB_LED_CTRL_REG 0x0431 191 #define RTL8366RB_LED_CTRL_OFFSET(led_group) \ 192 (4 * (led_group)) 193 #define RTL8366RB_LED_CTRL_MASK(led_group) \ 194 (0xf << RTL8366RB_LED_CTRL_OFFSET(led_group)) 195 196 /* The RTL8366RB_LED_X_X registers are used to manually set the LED state only 197 * when the corresponding LED group in RTL8366RB_LED_CTRL_REG is 198 * RTL8366RB_LEDGROUP_FORCE. Otherwise, it is ignored. 199 */ 200 #define RTL8366RB_LED_0_1_CTRL_REG 0x0432 201 #define RTL8366RB_LED_2_3_CTRL_REG 0x0433 202 #define RTL8366RB_LED_X_X_CTRL_REG(led_group) \ 203 ((led_group) <= 1 ? \ 204 RTL8366RB_LED_0_1_CTRL_REG : \ 205 RTL8366RB_LED_2_3_CTRL_REG) 206 #define RTL8366RB_LED_0_X_CTRL_MASK GENMASK(5, 0) 207 #define RTL8366RB_LED_X_1_CTRL_MASK GENMASK(11, 6) 208 #define RTL8366RB_LED_2_X_CTRL_MASK GENMASK(5, 0) 209 #define RTL8366RB_LED_X_3_CTRL_MASK GENMASK(11, 6) 210 211 #define RTL8366RB_MIB_COUNT 33 212 #define RTL8366RB_GLOBAL_MIB_COUNT 1 213 #define RTL8366RB_MIB_COUNTER_PORT_OFFSET 0x0050 214 #define RTL8366RB_MIB_COUNTER_BASE 0x1000 215 #define RTL8366RB_MIB_CTRL_REG 0x13F0 216 #define RTL8366RB_MIB_CTRL_USER_MASK 0x0FFC 217 #define RTL8366RB_MIB_CTRL_BUSY_MASK BIT(0) 218 #define RTL8366RB_MIB_CTRL_RESET_MASK BIT(1) 219 #define RTL8366RB_MIB_CTRL_PORT_RESET(_p) BIT(2 + (_p)) 220 #define RTL8366RB_MIB_CTRL_GLOBAL_RESET BIT(11) 221 222 #define RTL8366RB_PORT_VLAN_CTRL_BASE 0x0063 223 #define RTL8366RB_PORT_VLAN_CTRL_REG(_p) \ 224 (RTL8366RB_PORT_VLAN_CTRL_BASE + (_p) / 4) 225 #define RTL8366RB_PORT_VLAN_CTRL_MASK 0xf 226 #define RTL8366RB_PORT_VLAN_CTRL_SHIFT(_p) (4 * ((_p) % 4)) 227 228 #define RTL8366RB_VLAN_TABLE_READ_BASE 0x018C 229 #define RTL8366RB_VLAN_TABLE_WRITE_BASE 0x0185 230 231 #define RTL8366RB_TABLE_ACCESS_CTRL_REG 0x0180 232 #define RTL8366RB_TABLE_VLAN_READ_CTRL 0x0E01 233 #define RTL8366RB_TABLE_VLAN_WRITE_CTRL 0x0F01 234 235 #define RTL8366RB_VLAN_MC_BASE(_x) (0x0020 + (_x) * 3) 236 237 #define RTL8366RB_PORT_LINK_STATUS_BASE 0x0014 238 #define RTL8366RB_PORT_STATUS_SPEED_MASK 0x0003 239 #define RTL8366RB_PORT_STATUS_DUPLEX_MASK 0x0004 240 #define RTL8366RB_PORT_STATUS_LINK_MASK 0x0010 241 #define RTL8366RB_PORT_STATUS_TXPAUSE_MASK 0x0020 242 #define RTL8366RB_PORT_STATUS_RXPAUSE_MASK 0x0040 243 #define RTL8366RB_PORT_STATUS_AN_MASK 0x0080 244 245 #define RTL8366RB_NUM_VLANS 16 246 #define RTL8366RB_NUM_LEDGROUPS 4 247 #define RTL8366RB_NUM_VIDS 4096 248 #define RTL8366RB_PRIORITYMAX 7 249 #define RTL8366RB_NUM_FIDS 8 250 #define RTL8366RB_FIDMAX 7 251 252 #define RTL8366RB_PORT_1 BIT(0) /* In userspace port 0 */ 253 #define RTL8366RB_PORT_2 BIT(1) /* In userspace port 1 */ 254 #define RTL8366RB_PORT_3 BIT(2) /* In userspace port 2 */ 255 #define RTL8366RB_PORT_4 BIT(3) /* In userspace port 3 */ 256 #define RTL8366RB_PORT_5 BIT(4) /* In userspace port 4 */ 257 258 #define RTL8366RB_PORT_CPU BIT(5) /* CPU port */ 259 260 #define RTL8366RB_PORT_ALL (RTL8366RB_PORT_1 | \ 261 RTL8366RB_PORT_2 | \ 262 RTL8366RB_PORT_3 | \ 263 RTL8366RB_PORT_4 | \ 264 RTL8366RB_PORT_5 | \ 265 RTL8366RB_PORT_CPU) 266 267 #define RTL8366RB_PORT_ALL_BUT_CPU (RTL8366RB_PORT_1 | \ 268 RTL8366RB_PORT_2 | \ 269 RTL8366RB_PORT_3 | \ 270 RTL8366RB_PORT_4 | \ 271 RTL8366RB_PORT_5) 272 273 #define RTL8366RB_PORT_ALL_EXTERNAL (RTL8366RB_PORT_1 | \ 274 RTL8366RB_PORT_2 | \ 275 RTL8366RB_PORT_3 | \ 276 RTL8366RB_PORT_4) 277 278 #define RTL8366RB_PORT_ALL_INTERNAL RTL8366RB_PORT_CPU 279 280 /* First configuration word per member config, VID and prio */ 281 #define RTL8366RB_VLAN_VID_MASK 0xfff 282 #define RTL8366RB_VLAN_PRIORITY_SHIFT 12 283 #define RTL8366RB_VLAN_PRIORITY_MASK 0x7 284 /* Second configuration word per member config, member and untagged */ 285 #define RTL8366RB_VLAN_UNTAG_SHIFT 8 286 #define RTL8366RB_VLAN_UNTAG_MASK 0xff 287 #define RTL8366RB_VLAN_MEMBER_MASK 0xff 288 /* Third config word per member config, STAG currently unused */ 289 #define RTL8366RB_VLAN_STAG_MBR_MASK 0xff 290 #define RTL8366RB_VLAN_STAG_MBR_SHIFT 8 291 #define RTL8366RB_VLAN_STAG_IDX_MASK 0x7 292 #define RTL8366RB_VLAN_STAG_IDX_SHIFT 5 293 #define RTL8366RB_VLAN_FID_MASK 0x7 294 295 /* Port ingress bandwidth control */ 296 #define RTL8366RB_IB_BASE 0x0200 297 #define RTL8366RB_IB_REG(pnum) (RTL8366RB_IB_BASE + (pnum)) 298 #define RTL8366RB_IB_BDTH_MASK 0x3fff 299 #define RTL8366RB_IB_PREIFG BIT(14) 300 301 /* Port egress bandwidth control */ 302 #define RTL8366RB_EB_BASE 0x02d1 303 #define RTL8366RB_EB_REG(pnum) (RTL8366RB_EB_BASE + (pnum)) 304 #define RTL8366RB_EB_BDTH_MASK 0x3fff 305 #define RTL8366RB_EB_PREIFG_REG 0x02f8 306 #define RTL8366RB_EB_PREIFG BIT(9) 307 308 #define RTL8366RB_BDTH_SW_MAX 1048512 /* 1048576? */ 309 #define RTL8366RB_BDTH_UNIT 64 310 #define RTL8366RB_BDTH_REG_DEFAULT 16383 311 312 /* QOS */ 313 #define RTL8366RB_QOS BIT(15) 314 /* Include/Exclude Preamble and IFG (20 bytes). 0:Exclude, 1:Include. */ 315 #define RTL8366RB_QOS_DEFAULT_PREIFG 1 316 317 /* Interrupt handling */ 318 #define RTL8366RB_INTERRUPT_CONTROL_REG 0x0440 319 #define RTL8366RB_INTERRUPT_POLARITY BIT(0) 320 #define RTL8366RB_P4_RGMII_LED BIT(2) 321 #define RTL8366RB_INTERRUPT_MASK_REG 0x0441 322 #define RTL8366RB_INTERRUPT_LINK_CHGALL GENMASK(11, 0) 323 #define RTL8366RB_INTERRUPT_ACLEXCEED BIT(8) 324 #define RTL8366RB_INTERRUPT_STORMEXCEED BIT(9) 325 #define RTL8366RB_INTERRUPT_P4_FIBER BIT(12) 326 #define RTL8366RB_INTERRUPT_P4_UTP BIT(13) 327 #define RTL8366RB_INTERRUPT_VALID (RTL8366RB_INTERRUPT_LINK_CHGALL | \ 328 RTL8366RB_INTERRUPT_ACLEXCEED | \ 329 RTL8366RB_INTERRUPT_STORMEXCEED | \ 330 RTL8366RB_INTERRUPT_P4_FIBER | \ 331 RTL8366RB_INTERRUPT_P4_UTP) 332 #define RTL8366RB_INTERRUPT_STATUS_REG 0x0442 333 #define RTL8366RB_NUM_INTERRUPT 14 /* 0..13 */ 334 335 /* Port isolation registers */ 336 #define RTL8366RB_PORT_ISO_BASE 0x0F08 337 #define RTL8366RB_PORT_ISO(pnum) (RTL8366RB_PORT_ISO_BASE + (pnum)) 338 #define RTL8366RB_PORT_ISO_EN BIT(0) 339 #define RTL8366RB_PORT_ISO_PORTS_MASK GENMASK(7, 1) 340 #define RTL8366RB_PORT_ISO_PORTS(pmask) ((pmask) << 1) 341 342 /* bits 0..5 enable force when cleared */ 343 #define RTL8366RB_MAC_FORCE_CTRL_REG 0x0F11 344 345 #define RTL8366RB_OAM_PARSER_REG 0x0F14 346 #define RTL8366RB_OAM_MULTIPLEXER_REG 0x0F15 347 348 #define RTL8366RB_GREEN_FEATURE_REG 0x0F51 349 #define RTL8366RB_GREEN_FEATURE_MSK 0x0007 350 #define RTL8366RB_GREEN_FEATURE_TX BIT(0) 351 #define RTL8366RB_GREEN_FEATURE_RX BIT(2) 352 353 enum rtl8366_ledgroup_mode { 354 RTL8366RB_LEDGROUP_OFF = 0x0, 355 RTL8366RB_LEDGROUP_DUP_COL = 0x1, 356 RTL8366RB_LEDGROUP_LINK_ACT = 0x2, 357 RTL8366RB_LEDGROUP_SPD1000 = 0x3, 358 RTL8366RB_LEDGROUP_SPD100 = 0x4, 359 RTL8366RB_LEDGROUP_SPD10 = 0x5, 360 RTL8366RB_LEDGROUP_SPD1000_ACT = 0x6, 361 RTL8366RB_LEDGROUP_SPD100_ACT = 0x7, 362 RTL8366RB_LEDGROUP_SPD10_ACT = 0x8, 363 RTL8366RB_LEDGROUP_SPD100_10_ACT = 0x9, 364 RTL8366RB_LEDGROUP_FIBER = 0xa, 365 RTL8366RB_LEDGROUP_AN_FAULT = 0xb, 366 RTL8366RB_LEDGROUP_LINK_RX = 0xc, 367 RTL8366RB_LEDGROUP_LINK_TX = 0xd, 368 RTL8366RB_LEDGROUP_MASTER = 0xe, 369 RTL8366RB_LEDGROUP_FORCE = 0xf, 370 371 __RTL8366RB_LEDGROUP_MODE_MAX 372 }; 373 374 struct rtl8366rb_led { 375 u8 port_num; 376 u8 led_group; 377 struct realtek_priv *priv; 378 struct led_classdev cdev; 379 }; 380 381 /** 382 * struct rtl8366rb - RTL8366RB-specific data 383 * @max_mtu: per-port max MTU setting 384 * @pvid_enabled: if PVID is set for respective port 385 * @leds: per-port and per-ledgroup led info 386 */ 387 struct rtl8366rb { 388 unsigned int max_mtu[RTL8366RB_NUM_PORTS]; 389 bool pvid_enabled[RTL8366RB_NUM_PORTS]; 390 struct rtl8366rb_led leds[RTL8366RB_NUM_PORTS][RTL8366RB_NUM_LEDGROUPS]; 391 }; 392 393 static struct rtl8366_mib_counter rtl8366rb_mib_counters[] = { 394 { 0, 0, 4, "IfInOctets" }, 395 { 0, 4, 4, "EtherStatsOctets" }, 396 { 0, 8, 2, "EtherStatsUnderSizePkts" }, 397 { 0, 10, 2, "EtherFragments" }, 398 { 0, 12, 2, "EtherStatsPkts64Octets" }, 399 { 0, 14, 2, "EtherStatsPkts65to127Octets" }, 400 { 0, 16, 2, "EtherStatsPkts128to255Octets" }, 401 { 0, 18, 2, "EtherStatsPkts256to511Octets" }, 402 { 0, 20, 2, "EtherStatsPkts512to1023Octets" }, 403 { 0, 22, 2, "EtherStatsPkts1024to1518Octets" }, 404 { 0, 24, 2, "EtherOversizeStats" }, 405 { 0, 26, 2, "EtherStatsJabbers" }, 406 { 0, 28, 2, "IfInUcastPkts" }, 407 { 0, 30, 2, "EtherStatsMulticastPkts" }, 408 { 0, 32, 2, "EtherStatsBroadcastPkts" }, 409 { 0, 34, 2, "EtherStatsDropEvents" }, 410 { 0, 36, 2, "Dot3StatsFCSErrors" }, 411 { 0, 38, 2, "Dot3StatsSymbolErrors" }, 412 { 0, 40, 2, "Dot3InPauseFrames" }, 413 { 0, 42, 2, "Dot3ControlInUnknownOpcodes" }, 414 { 0, 44, 4, "IfOutOctets" }, 415 { 0, 48, 2, "Dot3StatsSingleCollisionFrames" }, 416 { 0, 50, 2, "Dot3StatMultipleCollisionFrames" }, 417 { 0, 52, 2, "Dot3sDeferredTransmissions" }, 418 { 0, 54, 2, "Dot3StatsLateCollisions" }, 419 { 0, 56, 2, "EtherStatsCollisions" }, 420 { 0, 58, 2, "Dot3StatsExcessiveCollisions" }, 421 { 0, 60, 2, "Dot3OutPauseFrames" }, 422 { 0, 62, 2, "Dot1dBasePortDelayExceededDiscards" }, 423 { 0, 64, 2, "Dot1dTpPortInDiscards" }, 424 { 0, 66, 2, "IfOutUcastPkts" }, 425 { 0, 68, 2, "IfOutMulticastPkts" }, 426 { 0, 70, 2, "IfOutBroadcastPkts" }, 427 }; 428 429 static int rtl8366rb_get_mib_counter(struct realtek_priv *priv, 430 int port, 431 struct rtl8366_mib_counter *mib, 432 u64 *mibvalue) 433 { 434 u32 addr, val; 435 int ret; 436 int i; 437 438 addr = RTL8366RB_MIB_COUNTER_BASE + 439 RTL8366RB_MIB_COUNTER_PORT_OFFSET * (port) + 440 mib->offset; 441 442 /* Writing access counter address first 443 * then ASIC will prepare 64bits counter wait for being retrived 444 */ 445 ret = regmap_write(priv->map, addr, 0); /* Write whatever */ 446 if (ret) 447 return ret; 448 449 /* Read MIB control register */ 450 ret = regmap_read(priv->map, RTL8366RB_MIB_CTRL_REG, &val); 451 if (ret) 452 return -EIO; 453 454 if (val & RTL8366RB_MIB_CTRL_BUSY_MASK) 455 return -EBUSY; 456 457 if (val & RTL8366RB_MIB_CTRL_RESET_MASK) 458 return -EIO; 459 460 /* Read each individual MIB 16 bits at the time */ 461 *mibvalue = 0; 462 for (i = mib->length; i > 0; i--) { 463 ret = regmap_read(priv->map, addr + (i - 1), &val); 464 if (ret) 465 return ret; 466 *mibvalue = (*mibvalue << 16) | (val & 0xFFFF); 467 } 468 return 0; 469 } 470 471 static u32 rtl8366rb_get_irqmask(struct irq_data *d) 472 { 473 int line = irqd_to_hwirq(d); 474 u32 val; 475 476 /* For line interrupts we combine link down in bits 477 * 6..11 with link up in bits 0..5 into one interrupt. 478 */ 479 if (line < 12) 480 val = BIT(line) | BIT(line + 6); 481 else 482 val = BIT(line); 483 return val; 484 } 485 486 static void rtl8366rb_mask_irq(struct irq_data *d) 487 { 488 struct realtek_priv *priv = irq_data_get_irq_chip_data(d); 489 int ret; 490 491 ret = regmap_update_bits(priv->map, RTL8366RB_INTERRUPT_MASK_REG, 492 rtl8366rb_get_irqmask(d), 0); 493 if (ret) 494 dev_err(priv->dev, "could not mask IRQ\n"); 495 } 496 497 static void rtl8366rb_unmask_irq(struct irq_data *d) 498 { 499 struct realtek_priv *priv = irq_data_get_irq_chip_data(d); 500 int ret; 501 502 ret = regmap_update_bits(priv->map, RTL8366RB_INTERRUPT_MASK_REG, 503 rtl8366rb_get_irqmask(d), 504 rtl8366rb_get_irqmask(d)); 505 if (ret) 506 dev_err(priv->dev, "could not unmask IRQ\n"); 507 } 508 509 static irqreturn_t rtl8366rb_irq(int irq, void *data) 510 { 511 struct realtek_priv *priv = data; 512 u32 stat; 513 int ret; 514 515 /* This clears the IRQ status register */ 516 ret = regmap_read(priv->map, RTL8366RB_INTERRUPT_STATUS_REG, 517 &stat); 518 if (ret) { 519 dev_err(priv->dev, "can't read interrupt status\n"); 520 return IRQ_NONE; 521 } 522 stat &= RTL8366RB_INTERRUPT_VALID; 523 if (!stat) 524 return IRQ_NONE; 525 while (stat) { 526 int line = __ffs(stat); 527 int child_irq; 528 529 stat &= ~BIT(line); 530 /* For line interrupts we combine link down in bits 531 * 6..11 with link up in bits 0..5 into one interrupt. 532 */ 533 if (line < 12 && line > 5) 534 line -= 5; 535 child_irq = irq_find_mapping(priv->irqdomain, line); 536 handle_nested_irq(child_irq); 537 } 538 return IRQ_HANDLED; 539 } 540 541 static struct irq_chip rtl8366rb_irq_chip = { 542 .name = "RTL8366RB", 543 .irq_mask = rtl8366rb_mask_irq, 544 .irq_unmask = rtl8366rb_unmask_irq, 545 }; 546 547 static int rtl8366rb_irq_map(struct irq_domain *domain, unsigned int irq, 548 irq_hw_number_t hwirq) 549 { 550 irq_set_chip_data(irq, domain->host_data); 551 irq_set_chip_and_handler(irq, &rtl8366rb_irq_chip, handle_simple_irq); 552 irq_set_nested_thread(irq, 1); 553 irq_set_noprobe(irq); 554 555 return 0; 556 } 557 558 static void rtl8366rb_irq_unmap(struct irq_domain *d, unsigned int irq) 559 { 560 irq_set_nested_thread(irq, 0); 561 irq_set_chip_and_handler(irq, NULL, NULL); 562 irq_set_chip_data(irq, NULL); 563 } 564 565 static const struct irq_domain_ops rtl8366rb_irqdomain_ops = { 566 .map = rtl8366rb_irq_map, 567 .unmap = rtl8366rb_irq_unmap, 568 .xlate = irq_domain_xlate_onecell, 569 }; 570 571 static int rtl8366rb_setup_cascaded_irq(struct realtek_priv *priv) 572 { 573 struct device_node *intc; 574 unsigned long irq_trig; 575 int irq; 576 int ret; 577 u32 val; 578 int i; 579 580 intc = of_get_child_by_name(priv->dev->of_node, "interrupt-controller"); 581 if (!intc) { 582 dev_err(priv->dev, "missing child interrupt-controller node\n"); 583 return -EINVAL; 584 } 585 /* RB8366RB IRQs cascade off this one */ 586 irq = of_irq_get(intc, 0); 587 if (irq <= 0) { 588 dev_err(priv->dev, "failed to get parent IRQ\n"); 589 ret = irq ? irq : -EINVAL; 590 goto out_put_node; 591 } 592 593 /* This clears the IRQ status register */ 594 ret = regmap_read(priv->map, RTL8366RB_INTERRUPT_STATUS_REG, 595 &val); 596 if (ret) { 597 dev_err(priv->dev, "can't read interrupt status\n"); 598 goto out_put_node; 599 } 600 601 /* Fetch IRQ edge information from the descriptor */ 602 irq_trig = irq_get_trigger_type(irq); 603 switch (irq_trig) { 604 case IRQF_TRIGGER_RISING: 605 case IRQF_TRIGGER_HIGH: 606 dev_info(priv->dev, "active high/rising IRQ\n"); 607 val = 0; 608 break; 609 case IRQF_TRIGGER_FALLING: 610 case IRQF_TRIGGER_LOW: 611 dev_info(priv->dev, "active low/falling IRQ\n"); 612 val = RTL8366RB_INTERRUPT_POLARITY; 613 break; 614 } 615 ret = regmap_update_bits(priv->map, RTL8366RB_INTERRUPT_CONTROL_REG, 616 RTL8366RB_INTERRUPT_POLARITY, 617 val); 618 if (ret) { 619 dev_err(priv->dev, "could not configure IRQ polarity\n"); 620 goto out_put_node; 621 } 622 623 ret = devm_request_threaded_irq(priv->dev, irq, NULL, 624 rtl8366rb_irq, IRQF_ONESHOT, 625 "RTL8366RB", priv); 626 if (ret) { 627 dev_err(priv->dev, "unable to request irq: %d\n", ret); 628 goto out_put_node; 629 } 630 priv->irqdomain = irq_domain_add_linear(intc, 631 RTL8366RB_NUM_INTERRUPT, 632 &rtl8366rb_irqdomain_ops, 633 priv); 634 if (!priv->irqdomain) { 635 dev_err(priv->dev, "failed to create IRQ domain\n"); 636 ret = -EINVAL; 637 goto out_put_node; 638 } 639 for (i = 0; i < priv->num_ports; i++) 640 irq_set_parent(irq_create_mapping(priv->irqdomain, i), irq); 641 642 out_put_node: 643 of_node_put(intc); 644 return ret; 645 } 646 647 static int rtl8366rb_set_addr(struct realtek_priv *priv) 648 { 649 u8 addr[ETH_ALEN]; 650 u16 val; 651 int ret; 652 653 eth_random_addr(addr); 654 655 dev_info(priv->dev, "set MAC: %02X:%02X:%02X:%02X:%02X:%02X\n", 656 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]); 657 val = addr[0] << 8 | addr[1]; 658 ret = regmap_write(priv->map, RTL8366RB_SMAR0, val); 659 if (ret) 660 return ret; 661 val = addr[2] << 8 | addr[3]; 662 ret = regmap_write(priv->map, RTL8366RB_SMAR1, val); 663 if (ret) 664 return ret; 665 val = addr[4] << 8 | addr[5]; 666 ret = regmap_write(priv->map, RTL8366RB_SMAR2, val); 667 if (ret) 668 return ret; 669 670 return 0; 671 } 672 673 /* Found in a vendor driver */ 674 675 /* Struct for handling the jam tables' entries */ 676 struct rtl8366rb_jam_tbl_entry { 677 u16 reg; 678 u16 val; 679 }; 680 681 /* For the "version 0" early silicon, appear in most source releases */ 682 static const struct rtl8366rb_jam_tbl_entry rtl8366rb_init_jam_ver_0[] = { 683 {0x000B, 0x0001}, {0x03A6, 0x0100}, {0x03A7, 0x0001}, {0x02D1, 0x3FFF}, 684 {0x02D2, 0x3FFF}, {0x02D3, 0x3FFF}, {0x02D4, 0x3FFF}, {0x02D5, 0x3FFF}, 685 {0x02D6, 0x3FFF}, {0x02D7, 0x3FFF}, {0x02D8, 0x3FFF}, {0x022B, 0x0688}, 686 {0x022C, 0x0FAC}, {0x03D0, 0x4688}, {0x03D1, 0x01F5}, {0x0000, 0x0830}, 687 {0x02F9, 0x0200}, {0x02F7, 0x7FFF}, {0x02F8, 0x03FF}, {0x0080, 0x03E8}, 688 {0x0081, 0x00CE}, {0x0082, 0x00DA}, {0x0083, 0x0230}, {0xBE0F, 0x2000}, 689 {0x0231, 0x422A}, {0x0232, 0x422A}, {0x0233, 0x422A}, {0x0234, 0x422A}, 690 {0x0235, 0x422A}, {0x0236, 0x422A}, {0x0237, 0x422A}, {0x0238, 0x422A}, 691 {0x0239, 0x422A}, {0x023A, 0x422A}, {0x023B, 0x422A}, {0x023C, 0x422A}, 692 {0x023D, 0x422A}, {0x023E, 0x422A}, {0x023F, 0x422A}, {0x0240, 0x422A}, 693 {0x0241, 0x422A}, {0x0242, 0x422A}, {0x0243, 0x422A}, {0x0244, 0x422A}, 694 {0x0245, 0x422A}, {0x0246, 0x422A}, {0x0247, 0x422A}, {0x0248, 0x422A}, 695 {0x0249, 0x0146}, {0x024A, 0x0146}, {0x024B, 0x0146}, {0xBE03, 0xC961}, 696 {0x024D, 0x0146}, {0x024E, 0x0146}, {0x024F, 0x0146}, {0x0250, 0x0146}, 697 {0xBE64, 0x0226}, {0x0252, 0x0146}, {0x0253, 0x0146}, {0x024C, 0x0146}, 698 {0x0251, 0x0146}, {0x0254, 0x0146}, {0xBE62, 0x3FD0}, {0x0084, 0x0320}, 699 {0x0255, 0x0146}, {0x0256, 0x0146}, {0x0257, 0x0146}, {0x0258, 0x0146}, 700 {0x0259, 0x0146}, {0x025A, 0x0146}, {0x025B, 0x0146}, {0x025C, 0x0146}, 701 {0x025D, 0x0146}, {0x025E, 0x0146}, {0x025F, 0x0146}, {0x0260, 0x0146}, 702 {0x0261, 0xA23F}, {0x0262, 0x0294}, {0x0263, 0xA23F}, {0x0264, 0x0294}, 703 {0x0265, 0xA23F}, {0x0266, 0x0294}, {0x0267, 0xA23F}, {0x0268, 0x0294}, 704 {0x0269, 0xA23F}, {0x026A, 0x0294}, {0x026B, 0xA23F}, {0x026C, 0x0294}, 705 {0x026D, 0xA23F}, {0x026E, 0x0294}, {0x026F, 0xA23F}, {0x0270, 0x0294}, 706 {0x02F5, 0x0048}, {0xBE09, 0x0E00}, {0xBE1E, 0x0FA0}, {0xBE14, 0x8448}, 707 {0xBE15, 0x1007}, {0xBE4A, 0xA284}, {0xC454, 0x3F0B}, {0xC474, 0x3F0B}, 708 {0xBE48, 0x3672}, {0xBE4B, 0x17A7}, {0xBE4C, 0x0B15}, {0xBE52, 0x0EDD}, 709 {0xBE49, 0x8C00}, {0xBE5B, 0x785C}, {0xBE5C, 0x785C}, {0xBE5D, 0x785C}, 710 {0xBE61, 0x368A}, {0xBE63, 0x9B84}, {0xC456, 0xCC13}, {0xC476, 0xCC13}, 711 {0xBE65, 0x307D}, {0xBE6D, 0x0005}, {0xBE6E, 0xE120}, {0xBE2E, 0x7BAF}, 712 }; 713 714 /* This v1 init sequence is from Belkin F5D8235 U-Boot release */ 715 static const struct rtl8366rb_jam_tbl_entry rtl8366rb_init_jam_ver_1[] = { 716 {0x0000, 0x0830}, {0x0001, 0x8000}, {0x0400, 0x8130}, {0xBE78, 0x3C3C}, 717 {0x0431, 0x5432}, {0xBE37, 0x0CE4}, {0x02FA, 0xFFDF}, {0x02FB, 0xFFE0}, 718 {0xC44C, 0x1585}, {0xC44C, 0x1185}, {0xC44C, 0x1585}, {0xC46C, 0x1585}, 719 {0xC46C, 0x1185}, {0xC46C, 0x1585}, {0xC451, 0x2135}, {0xC471, 0x2135}, 720 {0xBE10, 0x8140}, {0xBE15, 0x0007}, {0xBE6E, 0xE120}, {0xBE69, 0xD20F}, 721 {0xBE6B, 0x0320}, {0xBE24, 0xB000}, {0xBE23, 0xFF51}, {0xBE22, 0xDF20}, 722 {0xBE21, 0x0140}, {0xBE20, 0x00BB}, {0xBE24, 0xB800}, {0xBE24, 0x0000}, 723 {0xBE24, 0x7000}, {0xBE23, 0xFF51}, {0xBE22, 0xDF60}, {0xBE21, 0x0140}, 724 {0xBE20, 0x0077}, {0xBE24, 0x7800}, {0xBE24, 0x0000}, {0xBE2E, 0x7B7A}, 725 {0xBE36, 0x0CE4}, {0x02F5, 0x0048}, {0xBE77, 0x2940}, {0x000A, 0x83E0}, 726 {0xBE79, 0x3C3C}, {0xBE00, 0x1340}, 727 }; 728 729 /* This v2 init sequence is from Belkin F5D8235 U-Boot release */ 730 static const struct rtl8366rb_jam_tbl_entry rtl8366rb_init_jam_ver_2[] = { 731 {0x0450, 0x0000}, {0x0400, 0x8130}, {0x000A, 0x83ED}, {0x0431, 0x5432}, 732 {0xC44F, 0x6250}, {0xC46F, 0x6250}, {0xC456, 0x0C14}, {0xC476, 0x0C14}, 733 {0xC44C, 0x1C85}, {0xC44C, 0x1885}, {0xC44C, 0x1C85}, {0xC46C, 0x1C85}, 734 {0xC46C, 0x1885}, {0xC46C, 0x1C85}, {0xC44C, 0x0885}, {0xC44C, 0x0881}, 735 {0xC44C, 0x0885}, {0xC46C, 0x0885}, {0xC46C, 0x0881}, {0xC46C, 0x0885}, 736 {0xBE2E, 0x7BA7}, {0xBE36, 0x1000}, {0xBE37, 0x1000}, {0x8000, 0x0001}, 737 {0xBE69, 0xD50F}, {0x8000, 0x0000}, {0xBE69, 0xD50F}, {0xBE6E, 0x0320}, 738 {0xBE77, 0x2940}, {0xBE78, 0x3C3C}, {0xBE79, 0x3C3C}, {0xBE6E, 0xE120}, 739 {0x8000, 0x0001}, {0xBE15, 0x1007}, {0x8000, 0x0000}, {0xBE15, 0x1007}, 740 {0xBE14, 0x0448}, {0xBE1E, 0x00A0}, {0xBE10, 0x8160}, {0xBE10, 0x8140}, 741 {0xBE00, 0x1340}, {0x0F51, 0x0010}, 742 }; 743 744 /* Appears in a DDWRT code dump */ 745 static const struct rtl8366rb_jam_tbl_entry rtl8366rb_init_jam_ver_3[] = { 746 {0x0000, 0x0830}, {0x0400, 0x8130}, {0x000A, 0x83ED}, {0x0431, 0x5432}, 747 {0x0F51, 0x0017}, {0x02F5, 0x0048}, {0x02FA, 0xFFDF}, {0x02FB, 0xFFE0}, 748 {0xC456, 0x0C14}, {0xC476, 0x0C14}, {0xC454, 0x3F8B}, {0xC474, 0x3F8B}, 749 {0xC450, 0x2071}, {0xC470, 0x2071}, {0xC451, 0x226B}, {0xC471, 0x226B}, 750 {0xC452, 0xA293}, {0xC472, 0xA293}, {0xC44C, 0x1585}, {0xC44C, 0x1185}, 751 {0xC44C, 0x1585}, {0xC46C, 0x1585}, {0xC46C, 0x1185}, {0xC46C, 0x1585}, 752 {0xC44C, 0x0185}, {0xC44C, 0x0181}, {0xC44C, 0x0185}, {0xC46C, 0x0185}, 753 {0xC46C, 0x0181}, {0xC46C, 0x0185}, {0xBE24, 0xB000}, {0xBE23, 0xFF51}, 754 {0xBE22, 0xDF20}, {0xBE21, 0x0140}, {0xBE20, 0x00BB}, {0xBE24, 0xB800}, 755 {0xBE24, 0x0000}, {0xBE24, 0x7000}, {0xBE23, 0xFF51}, {0xBE22, 0xDF60}, 756 {0xBE21, 0x0140}, {0xBE20, 0x0077}, {0xBE24, 0x7800}, {0xBE24, 0x0000}, 757 {0xBE2E, 0x7BA7}, {0xBE36, 0x1000}, {0xBE37, 0x1000}, {0x8000, 0x0001}, 758 {0xBE69, 0xD50F}, {0x8000, 0x0000}, {0xBE69, 0xD50F}, {0xBE6B, 0x0320}, 759 {0xBE77, 0x2800}, {0xBE78, 0x3C3C}, {0xBE79, 0x3C3C}, {0xBE6E, 0xE120}, 760 {0x8000, 0x0001}, {0xBE10, 0x8140}, {0x8000, 0x0000}, {0xBE10, 0x8140}, 761 {0xBE15, 0x1007}, {0xBE14, 0x0448}, {0xBE1E, 0x00A0}, {0xBE10, 0x8160}, 762 {0xBE10, 0x8140}, {0xBE00, 0x1340}, {0x0450, 0x0000}, {0x0401, 0x0000}, 763 }; 764 765 /* Belkin F5D8235 v1, "belkin,f5d8235-v1" */ 766 static const struct rtl8366rb_jam_tbl_entry rtl8366rb_init_jam_f5d8235[] = { 767 {0x0242, 0x02BF}, {0x0245, 0x02BF}, {0x0248, 0x02BF}, {0x024B, 0x02BF}, 768 {0x024E, 0x02BF}, {0x0251, 0x02BF}, {0x0254, 0x0A3F}, {0x0256, 0x0A3F}, 769 {0x0258, 0x0A3F}, {0x025A, 0x0A3F}, {0x025C, 0x0A3F}, {0x025E, 0x0A3F}, 770 {0x0263, 0x007C}, {0x0100, 0x0004}, {0xBE5B, 0x3500}, {0x800E, 0x200F}, 771 {0xBE1D, 0x0F00}, {0x8001, 0x5011}, {0x800A, 0xA2F4}, {0x800B, 0x17A3}, 772 {0xBE4B, 0x17A3}, {0xBE41, 0x5011}, {0xBE17, 0x2100}, {0x8000, 0x8304}, 773 {0xBE40, 0x8304}, {0xBE4A, 0xA2F4}, {0x800C, 0xA8D5}, {0x8014, 0x5500}, 774 {0x8015, 0x0004}, {0xBE4C, 0xA8D5}, {0xBE59, 0x0008}, {0xBE09, 0x0E00}, 775 {0xBE36, 0x1036}, {0xBE37, 0x1036}, {0x800D, 0x00FF}, {0xBE4D, 0x00FF}, 776 }; 777 778 /* DGN3500, "netgear,dgn3500", "netgear,dgn3500b" */ 779 static const struct rtl8366rb_jam_tbl_entry rtl8366rb_init_jam_dgn3500[] = { 780 {0x0000, 0x0830}, {0x0400, 0x8130}, {0x000A, 0x83ED}, {0x0F51, 0x0017}, 781 {0x02F5, 0x0048}, {0x02FA, 0xFFDF}, {0x02FB, 0xFFE0}, {0x0450, 0x0000}, 782 {0x0401, 0x0000}, {0x0431, 0x0960}, 783 }; 784 785 /* This jam table activates "green ethernet", which means low power mode 786 * and is claimed to detect the cable length and not use more power than 787 * necessary, and the ports should enter power saving mode 10 seconds after 788 * a cable is disconnected. Seems to always be the same. 789 */ 790 static const struct rtl8366rb_jam_tbl_entry rtl8366rb_green_jam[] = { 791 {0xBE78, 0x323C}, {0xBE77, 0x5000}, {0xBE2E, 0x7BA7}, 792 {0xBE59, 0x3459}, {0xBE5A, 0x745A}, {0xBE5B, 0x785C}, 793 {0xBE5C, 0x785C}, {0xBE6E, 0xE120}, {0xBE79, 0x323C}, 794 }; 795 796 /* Function that jams the tables in the proper registers */ 797 static int rtl8366rb_jam_table(const struct rtl8366rb_jam_tbl_entry *jam_table, 798 int jam_size, struct realtek_priv *priv, 799 bool write_dbg) 800 { 801 u32 val; 802 int ret; 803 int i; 804 805 for (i = 0; i < jam_size; i++) { 806 if ((jam_table[i].reg & 0xBE00) == 0xBE00) { 807 ret = regmap_read(priv->map, 808 RTL8366RB_PHY_ACCESS_BUSY_REG, 809 &val); 810 if (ret) 811 return ret; 812 if (!(val & RTL8366RB_PHY_INT_BUSY)) { 813 ret = regmap_write(priv->map, 814 RTL8366RB_PHY_ACCESS_CTRL_REG, 815 RTL8366RB_PHY_CTRL_WRITE); 816 if (ret) 817 return ret; 818 } 819 } 820 if (write_dbg) 821 dev_dbg(priv->dev, "jam %04x into register %04x\n", 822 jam_table[i].val, 823 jam_table[i].reg); 824 ret = regmap_write(priv->map, 825 jam_table[i].reg, 826 jam_table[i].val); 827 if (ret) 828 return ret; 829 } 830 return 0; 831 } 832 833 static int rb8366rb_set_ledgroup_mode(struct realtek_priv *priv, 834 u8 led_group, 835 enum rtl8366_ledgroup_mode mode) 836 { 837 int ret; 838 u32 val; 839 840 val = mode << RTL8366RB_LED_CTRL_OFFSET(led_group); 841 842 ret = regmap_update_bits(priv->map, 843 RTL8366RB_LED_CTRL_REG, 844 RTL8366RB_LED_CTRL_MASK(led_group), 845 val); 846 if (ret) 847 return ret; 848 849 return 0; 850 } 851 852 static inline u32 rtl8366rb_led_group_port_mask(u8 led_group, u8 port) 853 { 854 switch (led_group) { 855 case 0: 856 return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port)); 857 case 1: 858 return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port)); 859 case 2: 860 return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port)); 861 case 3: 862 return FIELD_PREP(RTL8366RB_LED_0_X_CTRL_MASK, BIT(port)); 863 default: 864 return 0; 865 } 866 } 867 868 static int rb8366rb_get_port_led(struct rtl8366rb_led *led) 869 { 870 struct realtek_priv *priv = led->priv; 871 u8 led_group = led->led_group; 872 u8 port_num = led->port_num; 873 int ret; 874 u32 val; 875 876 ret = regmap_read(priv->map, RTL8366RB_LED_X_X_CTRL_REG(led_group), 877 &val); 878 if (ret) { 879 dev_err(priv->dev, "error reading LED on port %d group %d\n", 880 led_group, port_num); 881 return ret; 882 } 883 884 return !!(val & rtl8366rb_led_group_port_mask(led_group, port_num)); 885 } 886 887 static int rb8366rb_set_port_led(struct rtl8366rb_led *led, bool enable) 888 { 889 struct realtek_priv *priv = led->priv; 890 u8 led_group = led->led_group; 891 u8 port_num = led->port_num; 892 int ret; 893 894 ret = regmap_update_bits(priv->map, 895 RTL8366RB_LED_X_X_CTRL_REG(led_group), 896 rtl8366rb_led_group_port_mask(led_group, 897 port_num), 898 enable ? 0xffff : 0); 899 if (ret) { 900 dev_err(priv->dev, "error updating LED on port %d group %d\n", 901 led_group, port_num); 902 return ret; 903 } 904 905 /* Change the LED group to manual controlled LEDs if required */ 906 ret = rb8366rb_set_ledgroup_mode(priv, led_group, 907 RTL8366RB_LEDGROUP_FORCE); 908 909 if (ret) { 910 dev_err(priv->dev, "error updating LED GROUP group %d\n", 911 led_group); 912 return ret; 913 } 914 915 return 0; 916 } 917 918 static int 919 rtl8366rb_cled_brightness_set_blocking(struct led_classdev *ldev, 920 enum led_brightness brightness) 921 { 922 struct rtl8366rb_led *led = container_of(ldev, struct rtl8366rb_led, 923 cdev); 924 925 return rb8366rb_set_port_led(led, brightness == LED_ON); 926 } 927 928 static int rtl8366rb_setup_led(struct realtek_priv *priv, struct dsa_port *dp, 929 struct fwnode_handle *led_fwnode) 930 { 931 struct rtl8366rb *rb = priv->chip_data; 932 struct led_init_data init_data = { }; 933 enum led_default_state state; 934 struct rtl8366rb_led *led; 935 u32 led_group; 936 int ret; 937 938 ret = fwnode_property_read_u32(led_fwnode, "reg", &led_group); 939 if (ret) 940 return ret; 941 942 if (led_group >= RTL8366RB_NUM_LEDGROUPS) { 943 dev_warn(priv->dev, "Invalid LED reg %d defined for port %d", 944 led_group, dp->index); 945 return -EINVAL; 946 } 947 948 led = &rb->leds[dp->index][led_group]; 949 led->port_num = dp->index; 950 led->led_group = led_group; 951 led->priv = priv; 952 953 state = led_init_default_state_get(led_fwnode); 954 switch (state) { 955 case LEDS_DEFSTATE_ON: 956 led->cdev.brightness = 1; 957 rb8366rb_set_port_led(led, 1); 958 break; 959 case LEDS_DEFSTATE_KEEP: 960 led->cdev.brightness = 961 rb8366rb_get_port_led(led); 962 break; 963 case LEDS_DEFSTATE_OFF: 964 default: 965 led->cdev.brightness = 0; 966 rb8366rb_set_port_led(led, 0); 967 } 968 969 led->cdev.max_brightness = 1; 970 led->cdev.brightness_set_blocking = 971 rtl8366rb_cled_brightness_set_blocking; 972 init_data.fwnode = led_fwnode; 973 init_data.devname_mandatory = true; 974 975 init_data.devicename = kasprintf(GFP_KERNEL, "Realtek-%d:0%d:%d", 976 dp->ds->index, dp->index, led_group); 977 if (!init_data.devicename) 978 return -ENOMEM; 979 980 ret = devm_led_classdev_register_ext(priv->dev, &led->cdev, &init_data); 981 if (ret) { 982 dev_warn(priv->dev, "Failed to init LED %d for port %d", 983 led_group, dp->index); 984 return ret; 985 } 986 987 return 0; 988 } 989 990 static int rtl8366rb_setup_all_leds_off(struct realtek_priv *priv) 991 { 992 int ret = 0; 993 int i; 994 995 regmap_update_bits(priv->map, 996 RTL8366RB_INTERRUPT_CONTROL_REG, 997 RTL8366RB_P4_RGMII_LED, 998 0); 999 1000 for (i = 0; i < RTL8366RB_NUM_LEDGROUPS; i++) { 1001 ret = rb8366rb_set_ledgroup_mode(priv, i, 1002 RTL8366RB_LEDGROUP_OFF); 1003 if (ret) 1004 return ret; 1005 } 1006 1007 return ret; 1008 } 1009 1010 static int rtl8366rb_setup_leds(struct realtek_priv *priv) 1011 { 1012 struct dsa_switch *ds = &priv->ds; 1013 struct device_node *leds_np; 1014 struct dsa_port *dp; 1015 int ret = 0; 1016 1017 dsa_switch_for_each_port(dp, ds) { 1018 if (!dp->dn) 1019 continue; 1020 1021 leds_np = of_get_child_by_name(dp->dn, "leds"); 1022 if (!leds_np) { 1023 dev_dbg(priv->dev, "No leds defined for port %d", 1024 dp->index); 1025 continue; 1026 } 1027 1028 for_each_child_of_node_scoped(leds_np, led_np) { 1029 ret = rtl8366rb_setup_led(priv, dp, 1030 of_fwnode_handle(led_np)); 1031 if (ret) 1032 break; 1033 } 1034 1035 of_node_put(leds_np); 1036 if (ret) 1037 return ret; 1038 } 1039 return 0; 1040 } 1041 1042 static int rtl8366rb_setup(struct dsa_switch *ds) 1043 { 1044 struct realtek_priv *priv = ds->priv; 1045 const struct rtl8366rb_jam_tbl_entry *jam_table; 1046 struct rtl8366rb *rb; 1047 u32 chip_ver = 0; 1048 u32 chip_id = 0; 1049 int jam_size; 1050 int ret; 1051 int i; 1052 1053 rb = priv->chip_data; 1054 1055 ret = regmap_read(priv->map, RTL8366RB_CHIP_ID_REG, &chip_id); 1056 if (ret) { 1057 dev_err(priv->dev, "unable to read chip id\n"); 1058 return ret; 1059 } 1060 1061 switch (chip_id) { 1062 case RTL8366RB_CHIP_ID_8366: 1063 break; 1064 default: 1065 dev_err(priv->dev, "unknown chip id (%04x)\n", chip_id); 1066 return -ENODEV; 1067 } 1068 1069 ret = regmap_read(priv->map, RTL8366RB_CHIP_VERSION_CTRL_REG, 1070 &chip_ver); 1071 if (ret) { 1072 dev_err(priv->dev, "unable to read chip version\n"); 1073 return ret; 1074 } 1075 1076 dev_info(priv->dev, "RTL%04x ver %u chip found\n", 1077 chip_id, chip_ver & RTL8366RB_CHIP_VERSION_MASK); 1078 1079 /* Do the init dance using the right jam table */ 1080 switch (chip_ver) { 1081 case 0: 1082 jam_table = rtl8366rb_init_jam_ver_0; 1083 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_0); 1084 break; 1085 case 1: 1086 jam_table = rtl8366rb_init_jam_ver_1; 1087 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_1); 1088 break; 1089 case 2: 1090 jam_table = rtl8366rb_init_jam_ver_2; 1091 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_2); 1092 break; 1093 default: 1094 jam_table = rtl8366rb_init_jam_ver_3; 1095 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_ver_3); 1096 break; 1097 } 1098 1099 /* Special jam tables for special routers 1100 * TODO: are these necessary? Maintainers, please test 1101 * without them, using just the off-the-shelf tables. 1102 */ 1103 if (of_machine_is_compatible("belkin,f5d8235-v1")) { 1104 jam_table = rtl8366rb_init_jam_f5d8235; 1105 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_f5d8235); 1106 } 1107 if (of_machine_is_compatible("netgear,dgn3500") || 1108 of_machine_is_compatible("netgear,dgn3500b")) { 1109 jam_table = rtl8366rb_init_jam_dgn3500; 1110 jam_size = ARRAY_SIZE(rtl8366rb_init_jam_dgn3500); 1111 } 1112 1113 ret = rtl8366rb_jam_table(jam_table, jam_size, priv, true); 1114 if (ret) 1115 return ret; 1116 1117 /* Isolate all user ports so they can only send packets to itself and the CPU port */ 1118 for (i = 0; i < RTL8366RB_PORT_NUM_CPU; i++) { 1119 ret = regmap_write(priv->map, RTL8366RB_PORT_ISO(i), 1120 RTL8366RB_PORT_ISO_PORTS(BIT(RTL8366RB_PORT_NUM_CPU)) | 1121 RTL8366RB_PORT_ISO_EN); 1122 if (ret) 1123 return ret; 1124 } 1125 /* CPU port can send packets to all ports */ 1126 ret = regmap_write(priv->map, RTL8366RB_PORT_ISO(RTL8366RB_PORT_NUM_CPU), 1127 RTL8366RB_PORT_ISO_PORTS(dsa_user_ports(ds)) | 1128 RTL8366RB_PORT_ISO_EN); 1129 if (ret) 1130 return ret; 1131 1132 /* Set up the "green ethernet" feature */ 1133 ret = rtl8366rb_jam_table(rtl8366rb_green_jam, 1134 ARRAY_SIZE(rtl8366rb_green_jam), priv, false); 1135 if (ret) 1136 return ret; 1137 1138 ret = regmap_write(priv->map, 1139 RTL8366RB_GREEN_FEATURE_REG, 1140 (chip_ver == 1) ? 0x0007 : 0x0003); 1141 if (ret) 1142 return ret; 1143 1144 /* Vendor driver sets 0x240 in registers 0xc and 0xd (undocumented) */ 1145 ret = regmap_write(priv->map, 0x0c, 0x240); 1146 if (ret) 1147 return ret; 1148 ret = regmap_write(priv->map, 0x0d, 0x240); 1149 if (ret) 1150 return ret; 1151 1152 /* Set some random MAC address */ 1153 ret = rtl8366rb_set_addr(priv); 1154 if (ret) 1155 return ret; 1156 1157 /* Enable CPU port with custom DSA tag 8899. 1158 * 1159 * If you set RTL8366RB_CPU_NO_TAG (bit 15) in this register 1160 * the custom tag is turned off. 1161 */ 1162 ret = regmap_update_bits(priv->map, RTL8366RB_CPU_CTRL_REG, 1163 0xFFFF, 1164 BIT(priv->cpu_port)); 1165 if (ret) 1166 return ret; 1167 1168 /* Make sure we default-enable the fixed CPU port */ 1169 ret = regmap_update_bits(priv->map, RTL8366RB_PECR, 1170 BIT(priv->cpu_port), 1171 0); 1172 if (ret) 1173 return ret; 1174 1175 /* Set default maximum packet length to 1536 bytes */ 1176 ret = regmap_update_bits(priv->map, RTL8366RB_SGCR, 1177 RTL8366RB_SGCR_MAX_LENGTH_MASK, 1178 RTL8366RB_SGCR_MAX_LENGTH_1536); 1179 if (ret) 1180 return ret; 1181 for (i = 0; i < RTL8366RB_NUM_PORTS; i++) { 1182 if (i == priv->cpu_port) 1183 /* CPU port need to also accept the tag */ 1184 rb->max_mtu[i] = ETH_DATA_LEN + RTL8366RB_CPU_TAG_SIZE; 1185 else 1186 rb->max_mtu[i] = ETH_DATA_LEN; 1187 } 1188 1189 /* Disable learning for all ports */ 1190 ret = regmap_write(priv->map, RTL8366RB_PORT_LEARNDIS_CTRL, 1191 RTL8366RB_PORT_ALL); 1192 if (ret) 1193 return ret; 1194 1195 /* Enable auto ageing for all ports */ 1196 ret = regmap_write(priv->map, RTL8366RB_SECURITY_CTRL, 0); 1197 if (ret) 1198 return ret; 1199 1200 /* Port 4 setup: this enables Port 4, usually the WAN port, 1201 * common PHY IO mode is apparently mode 0, and this is not what 1202 * the port is initialized to. There is no explanation of the 1203 * IO modes in the Realtek source code, if your WAN port is 1204 * connected to something exotic such as fiber, then this might 1205 * be worth experimenting with. 1206 */ 1207 ret = regmap_update_bits(priv->map, RTL8366RB_PMC0, 1208 RTL8366RB_PMC0_P4_IOMODE_MASK, 1209 0 << RTL8366RB_PMC0_P4_IOMODE_SHIFT); 1210 if (ret) 1211 return ret; 1212 1213 /* Accept all packets by default, we enable filtering on-demand */ 1214 ret = regmap_write(priv->map, RTL8366RB_VLAN_INGRESS_CTRL1_REG, 1215 0); 1216 if (ret) 1217 return ret; 1218 ret = regmap_write(priv->map, RTL8366RB_VLAN_INGRESS_CTRL2_REG, 1219 0); 1220 if (ret) 1221 return ret; 1222 1223 /* Don't drop packets whose DA has not been learned */ 1224 ret = regmap_update_bits(priv->map, RTL8366RB_SSCR2, 1225 RTL8366RB_SSCR2_DROP_UNKNOWN_DA, 0); 1226 if (ret) 1227 return ret; 1228 1229 /* Set blinking, used by all LED groups using HW triggers. 1230 * TODO: make this configurable 1231 */ 1232 ret = regmap_update_bits(priv->map, RTL8366RB_LED_BLINKRATE_REG, 1233 RTL8366RB_LED_BLINKRATE_MASK, 1234 RTL8366RB_LED_BLINKRATE_56MS); 1235 if (ret) 1236 return ret; 1237 1238 /* Set up LED activity: 1239 * Each port has 4 LEDs on fixed groups. Each group shares the same 1240 * hardware trigger across all ports. LEDs can only be indiviually 1241 * controlled setting the LED group to fixed mode and using the driver 1242 * to toggle them LEDs on/off. 1243 */ 1244 if (priv->leds_disabled) { 1245 ret = rtl8366rb_setup_all_leds_off(priv); 1246 if (ret) 1247 return ret; 1248 } else { 1249 ret = rtl8366rb_setup_leds(priv); 1250 if (ret) 1251 return ret; 1252 } 1253 1254 ret = rtl8366_reset_vlan(priv); 1255 if (ret) 1256 return ret; 1257 1258 ret = rtl8366rb_setup_cascaded_irq(priv); 1259 if (ret) 1260 dev_info(priv->dev, "no interrupt support\n"); 1261 1262 ret = rtl83xx_setup_user_mdio(ds); 1263 if (ret) { 1264 dev_err(priv->dev, "could not set up MDIO bus\n"); 1265 return -ENODEV; 1266 } 1267 1268 return 0; 1269 } 1270 1271 static enum dsa_tag_protocol rtl8366_get_tag_protocol(struct dsa_switch *ds, 1272 int port, 1273 enum dsa_tag_protocol mp) 1274 { 1275 /* This switch uses the 4 byte protocol A Realtek DSA tag */ 1276 return DSA_TAG_PROTO_RTL4_A; 1277 } 1278 1279 static void rtl8366rb_phylink_get_caps(struct dsa_switch *ds, int port, 1280 struct phylink_config *config) 1281 { 1282 unsigned long *interfaces = config->supported_interfaces; 1283 struct realtek_priv *priv = ds->priv; 1284 1285 if (port == priv->cpu_port) { 1286 __set_bit(PHY_INTERFACE_MODE_MII, interfaces); 1287 __set_bit(PHY_INTERFACE_MODE_GMII, interfaces); 1288 /* REVMII only supports 100M FD */ 1289 __set_bit(PHY_INTERFACE_MODE_REVMII, interfaces); 1290 /* RGMII only supports 1G FD */ 1291 phy_interface_set_rgmii(interfaces); 1292 1293 config->mac_capabilities = MAC_1000 | MAC_100 | 1294 MAC_SYM_PAUSE; 1295 } else { 1296 /* RSGMII port, but we don't have that, and we don't 1297 * specify in DT, so phylib uses the default of GMII 1298 */ 1299 __set_bit(PHY_INTERFACE_MODE_GMII, interfaces); 1300 config->mac_capabilities = MAC_1000 | MAC_100 | MAC_10 | 1301 MAC_SYM_PAUSE | MAC_ASYM_PAUSE; 1302 } 1303 } 1304 1305 static void 1306 rtl8366rb_mac_config(struct phylink_config *config, unsigned int mode, 1307 const struct phylink_link_state *state) 1308 { 1309 } 1310 1311 static void 1312 rtl8366rb_mac_link_up(struct phylink_config *config, struct phy_device *phydev, 1313 unsigned int mode, phy_interface_t interface, 1314 int speed, int duplex, bool tx_pause, bool rx_pause) 1315 { 1316 struct dsa_port *dp = dsa_phylink_to_port(config); 1317 struct realtek_priv *priv = dp->ds->priv; 1318 int port = dp->index; 1319 unsigned int val; 1320 int ret; 1321 1322 /* Allow forcing the mode on the fixed CPU port, no autonegotiation. 1323 * We assume autonegotiation works on the PHY-facing ports. 1324 */ 1325 if (port != priv->cpu_port) 1326 return; 1327 1328 dev_dbg(priv->dev, "MAC link up on CPU port (%d)\n", port); 1329 1330 ret = regmap_update_bits(priv->map, RTL8366RB_MAC_FORCE_CTRL_REG, 1331 BIT(port), BIT(port)); 1332 if (ret) { 1333 dev_err(priv->dev, "failed to force CPU port\n"); 1334 return; 1335 } 1336 1337 /* Conjure port config */ 1338 switch (speed) { 1339 case SPEED_10: 1340 val = RTL8366RB_PAACR_SPEED_10M; 1341 break; 1342 case SPEED_100: 1343 val = RTL8366RB_PAACR_SPEED_100M; 1344 break; 1345 case SPEED_1000: 1346 val = RTL8366RB_PAACR_SPEED_1000M; 1347 break; 1348 default: 1349 val = RTL8366RB_PAACR_SPEED_1000M; 1350 break; 1351 } 1352 1353 if (duplex == DUPLEX_FULL) 1354 val |= RTL8366RB_PAACR_FULL_DUPLEX; 1355 1356 if (tx_pause) 1357 val |= RTL8366RB_PAACR_TX_PAUSE; 1358 1359 if (rx_pause) 1360 val |= RTL8366RB_PAACR_RX_PAUSE; 1361 1362 val |= RTL8366RB_PAACR_LINK_UP; 1363 1364 ret = regmap_update_bits(priv->map, RTL8366RB_PAACR2, 1365 0xFF00U, 1366 val << 8); 1367 if (ret) { 1368 dev_err(priv->dev, "failed to set PAACR on CPU port\n"); 1369 return; 1370 } 1371 1372 dev_dbg(priv->dev, "set PAACR to %04x\n", val); 1373 1374 /* Enable the CPU port */ 1375 ret = regmap_update_bits(priv->map, RTL8366RB_PECR, BIT(port), 1376 0); 1377 if (ret) { 1378 dev_err(priv->dev, "failed to enable the CPU port\n"); 1379 return; 1380 } 1381 } 1382 1383 static void 1384 rtl8366rb_mac_link_down(struct phylink_config *config, unsigned int mode, 1385 phy_interface_t interface) 1386 { 1387 struct dsa_port *dp = dsa_phylink_to_port(config); 1388 struct realtek_priv *priv = dp->ds->priv; 1389 int port = dp->index; 1390 int ret; 1391 1392 if (port != priv->cpu_port) 1393 return; 1394 1395 dev_dbg(priv->dev, "MAC link down on CPU port (%d)\n", port); 1396 1397 /* Disable the CPU port */ 1398 ret = regmap_update_bits(priv->map, RTL8366RB_PECR, BIT(port), 1399 BIT(port)); 1400 if (ret) { 1401 dev_err(priv->dev, "failed to disable the CPU port\n"); 1402 return; 1403 } 1404 } 1405 1406 static int 1407 rtl8366rb_port_enable(struct dsa_switch *ds, int port, 1408 struct phy_device *phy) 1409 { 1410 struct realtek_priv *priv = ds->priv; 1411 int ret; 1412 1413 dev_dbg(priv->dev, "enable port %d\n", port); 1414 ret = regmap_update_bits(priv->map, RTL8366RB_PECR, BIT(port), 1415 0); 1416 if (ret) 1417 return ret; 1418 1419 return 0; 1420 } 1421 1422 static void 1423 rtl8366rb_port_disable(struct dsa_switch *ds, int port) 1424 { 1425 struct realtek_priv *priv = ds->priv; 1426 int ret; 1427 1428 dev_dbg(priv->dev, "disable port %d\n", port); 1429 ret = regmap_update_bits(priv->map, RTL8366RB_PECR, BIT(port), 1430 BIT(port)); 1431 if (ret) 1432 return; 1433 } 1434 1435 static int 1436 rtl8366rb_port_bridge_join(struct dsa_switch *ds, int port, 1437 struct dsa_bridge bridge, 1438 bool *tx_fwd_offload, 1439 struct netlink_ext_ack *extack) 1440 { 1441 struct realtek_priv *priv = ds->priv; 1442 unsigned int port_bitmap = 0; 1443 int ret, i; 1444 1445 /* Loop over all other ports than the current one */ 1446 for (i = 0; i < RTL8366RB_PORT_NUM_CPU; i++) { 1447 /* Current port handled last */ 1448 if (i == port) 1449 continue; 1450 /* Not on this bridge */ 1451 if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge)) 1452 continue; 1453 /* Join this port to each other port on the bridge */ 1454 ret = regmap_update_bits(priv->map, RTL8366RB_PORT_ISO(i), 1455 RTL8366RB_PORT_ISO_PORTS(BIT(port)), 1456 RTL8366RB_PORT_ISO_PORTS(BIT(port))); 1457 if (ret) 1458 dev_err(priv->dev, "failed to join port %d\n", port); 1459 1460 port_bitmap |= BIT(i); 1461 } 1462 1463 /* Set the bits for the ports we can access */ 1464 return regmap_update_bits(priv->map, RTL8366RB_PORT_ISO(port), 1465 RTL8366RB_PORT_ISO_PORTS(port_bitmap), 1466 RTL8366RB_PORT_ISO_PORTS(port_bitmap)); 1467 } 1468 1469 static void 1470 rtl8366rb_port_bridge_leave(struct dsa_switch *ds, int port, 1471 struct dsa_bridge bridge) 1472 { 1473 struct realtek_priv *priv = ds->priv; 1474 unsigned int port_bitmap = 0; 1475 int ret, i; 1476 1477 /* Loop over all other ports than this one */ 1478 for (i = 0; i < RTL8366RB_PORT_NUM_CPU; i++) { 1479 /* Current port handled last */ 1480 if (i == port) 1481 continue; 1482 /* Not on this bridge */ 1483 if (!dsa_port_offloads_bridge(dsa_to_port(ds, i), &bridge)) 1484 continue; 1485 /* Remove this port from any other port on the bridge */ 1486 ret = regmap_update_bits(priv->map, RTL8366RB_PORT_ISO(i), 1487 RTL8366RB_PORT_ISO_PORTS(BIT(port)), 0); 1488 if (ret) 1489 dev_err(priv->dev, "failed to leave port %d\n", port); 1490 1491 port_bitmap |= BIT(i); 1492 } 1493 1494 /* Clear the bits for the ports we can not access, leave ourselves */ 1495 regmap_update_bits(priv->map, RTL8366RB_PORT_ISO(port), 1496 RTL8366RB_PORT_ISO_PORTS(port_bitmap), 0); 1497 } 1498 1499 /** 1500 * rtl8366rb_drop_untagged() - make the switch drop untagged and C-tagged frames 1501 * @priv: SMI state container 1502 * @port: the port to drop untagged and C-tagged frames on 1503 * @drop: whether to drop or pass untagged and C-tagged frames 1504 * 1505 * Return: zero for success, a negative number on error. 1506 */ 1507 static int rtl8366rb_drop_untagged(struct realtek_priv *priv, int port, bool drop) 1508 { 1509 return regmap_update_bits(priv->map, RTL8366RB_VLAN_INGRESS_CTRL1_REG, 1510 RTL8366RB_VLAN_INGRESS_CTRL1_DROP(port), 1511 drop ? RTL8366RB_VLAN_INGRESS_CTRL1_DROP(port) : 0); 1512 } 1513 1514 static int rtl8366rb_vlan_filtering(struct dsa_switch *ds, int port, 1515 bool vlan_filtering, 1516 struct netlink_ext_ack *extack) 1517 { 1518 struct realtek_priv *priv = ds->priv; 1519 struct rtl8366rb *rb; 1520 int ret; 1521 1522 rb = priv->chip_data; 1523 1524 dev_dbg(priv->dev, "port %d: %s VLAN filtering\n", port, 1525 vlan_filtering ? "enable" : "disable"); 1526 1527 /* If the port is not in the member set, the frame will be dropped */ 1528 ret = regmap_update_bits(priv->map, RTL8366RB_VLAN_INGRESS_CTRL2_REG, 1529 BIT(port), vlan_filtering ? BIT(port) : 0); 1530 if (ret) 1531 return ret; 1532 1533 /* If VLAN filtering is enabled and PVID is also enabled, we must 1534 * not drop any untagged or C-tagged frames. If we turn off VLAN 1535 * filtering on a port, we need to accept any frames. 1536 */ 1537 if (vlan_filtering) 1538 ret = rtl8366rb_drop_untagged(priv, port, !rb->pvid_enabled[port]); 1539 else 1540 ret = rtl8366rb_drop_untagged(priv, port, false); 1541 1542 return ret; 1543 } 1544 1545 static int 1546 rtl8366rb_port_pre_bridge_flags(struct dsa_switch *ds, int port, 1547 struct switchdev_brport_flags flags, 1548 struct netlink_ext_ack *extack) 1549 { 1550 /* We support enabling/disabling learning */ 1551 if (flags.mask & ~(BR_LEARNING)) 1552 return -EINVAL; 1553 1554 return 0; 1555 } 1556 1557 static int 1558 rtl8366rb_port_bridge_flags(struct dsa_switch *ds, int port, 1559 struct switchdev_brport_flags flags, 1560 struct netlink_ext_ack *extack) 1561 { 1562 struct realtek_priv *priv = ds->priv; 1563 int ret; 1564 1565 if (flags.mask & BR_LEARNING) { 1566 ret = regmap_update_bits(priv->map, RTL8366RB_PORT_LEARNDIS_CTRL, 1567 BIT(port), 1568 (flags.val & BR_LEARNING) ? 0 : BIT(port)); 1569 if (ret) 1570 return ret; 1571 } 1572 1573 return 0; 1574 } 1575 1576 static void 1577 rtl8366rb_port_stp_state_set(struct dsa_switch *ds, int port, u8 state) 1578 { 1579 struct realtek_priv *priv = ds->priv; 1580 u32 val; 1581 int i; 1582 1583 switch (state) { 1584 case BR_STATE_DISABLED: 1585 val = RTL8366RB_STP_STATE_DISABLED; 1586 break; 1587 case BR_STATE_BLOCKING: 1588 case BR_STATE_LISTENING: 1589 val = RTL8366RB_STP_STATE_BLOCKING; 1590 break; 1591 case BR_STATE_LEARNING: 1592 val = RTL8366RB_STP_STATE_LEARNING; 1593 break; 1594 case BR_STATE_FORWARDING: 1595 val = RTL8366RB_STP_STATE_FORWARDING; 1596 break; 1597 default: 1598 dev_err(priv->dev, "unknown bridge state requested\n"); 1599 return; 1600 } 1601 1602 /* Set the same status for the port on all the FIDs */ 1603 for (i = 0; i < RTL8366RB_NUM_FIDS; i++) { 1604 regmap_update_bits(priv->map, RTL8366RB_STP_STATE_BASE + i, 1605 RTL8366RB_STP_STATE_MASK(port), 1606 RTL8366RB_STP_STATE(port, val)); 1607 } 1608 } 1609 1610 static void 1611 rtl8366rb_port_fast_age(struct dsa_switch *ds, int port) 1612 { 1613 struct realtek_priv *priv = ds->priv; 1614 1615 /* This will age out any learned L2 entries */ 1616 regmap_update_bits(priv->map, RTL8366RB_SECURITY_CTRL, 1617 BIT(port), BIT(port)); 1618 /* Restore the normal state of things */ 1619 regmap_update_bits(priv->map, RTL8366RB_SECURITY_CTRL, 1620 BIT(port), 0); 1621 } 1622 1623 static int rtl8366rb_change_mtu(struct dsa_switch *ds, int port, int new_mtu) 1624 { 1625 struct realtek_priv *priv = ds->priv; 1626 struct rtl8366rb *rb; 1627 unsigned int max_mtu; 1628 u32 len; 1629 int i; 1630 1631 /* Cache the per-port MTU setting */ 1632 rb = priv->chip_data; 1633 rb->max_mtu[port] = new_mtu; 1634 1635 /* Roof out the MTU for the entire switch to the greatest 1636 * common denominator: the biggest set for any one port will 1637 * be the biggest MTU for the switch. 1638 */ 1639 max_mtu = ETH_DATA_LEN; 1640 for (i = 0; i < RTL8366RB_NUM_PORTS; i++) { 1641 if (rb->max_mtu[i] > max_mtu) 1642 max_mtu = rb->max_mtu[i]; 1643 } 1644 1645 /* Translate to layer 2 size. 1646 * Add ethernet and (possible) VLAN headers, and checksum to the size. 1647 * For ETH_DATA_LEN (1500 bytes) this will add up to 1522 bytes. 1648 */ 1649 max_mtu += VLAN_ETH_HLEN; 1650 max_mtu += ETH_FCS_LEN; 1651 1652 if (max_mtu <= 1522) 1653 len = RTL8366RB_SGCR_MAX_LENGTH_1522; 1654 else if (max_mtu > 1522 && max_mtu <= 1536) 1655 /* This will be the most common default if using VLAN and 1656 * CPU tagging on a port as both VLAN and CPU tag will 1657 * result in 1518 + 4 + 4 = 1526 bytes. 1658 */ 1659 len = RTL8366RB_SGCR_MAX_LENGTH_1536; 1660 else if (max_mtu > 1536 && max_mtu <= 1552) 1661 len = RTL8366RB_SGCR_MAX_LENGTH_1552; 1662 else 1663 len = RTL8366RB_SGCR_MAX_LENGTH_16000; 1664 1665 return regmap_update_bits(priv->map, RTL8366RB_SGCR, 1666 RTL8366RB_SGCR_MAX_LENGTH_MASK, 1667 len); 1668 } 1669 1670 static int rtl8366rb_max_mtu(struct dsa_switch *ds, int port) 1671 { 1672 /* The max MTU is 16000 bytes, so we subtract the ethernet 1673 * headers with VLAN and checksum and arrive at 1674 * 16000 - 18 - 4 = 15978. This does not include the CPU tag 1675 * since that is added to the requested MTU by the DSA framework. 1676 */ 1677 return 16000 - VLAN_ETH_HLEN - ETH_FCS_LEN; 1678 } 1679 1680 static int rtl8366rb_get_vlan_4k(struct realtek_priv *priv, u32 vid, 1681 struct rtl8366_vlan_4k *vlan4k) 1682 { 1683 u32 data[3]; 1684 int ret; 1685 int i; 1686 1687 memset(vlan4k, '\0', sizeof(struct rtl8366_vlan_4k)); 1688 1689 if (vid >= RTL8366RB_NUM_VIDS) 1690 return -EINVAL; 1691 1692 /* write VID */ 1693 ret = regmap_write(priv->map, RTL8366RB_VLAN_TABLE_WRITE_BASE, 1694 vid & RTL8366RB_VLAN_VID_MASK); 1695 if (ret) 1696 return ret; 1697 1698 /* write table access control word */ 1699 ret = regmap_write(priv->map, RTL8366RB_TABLE_ACCESS_CTRL_REG, 1700 RTL8366RB_TABLE_VLAN_READ_CTRL); 1701 if (ret) 1702 return ret; 1703 1704 for (i = 0; i < 3; i++) { 1705 ret = regmap_read(priv->map, 1706 RTL8366RB_VLAN_TABLE_READ_BASE + i, 1707 &data[i]); 1708 if (ret) 1709 return ret; 1710 } 1711 1712 vlan4k->vid = vid; 1713 vlan4k->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) & 1714 RTL8366RB_VLAN_UNTAG_MASK; 1715 vlan4k->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK; 1716 vlan4k->fid = data[2] & RTL8366RB_VLAN_FID_MASK; 1717 1718 return 0; 1719 } 1720 1721 static int rtl8366rb_set_vlan_4k(struct realtek_priv *priv, 1722 const struct rtl8366_vlan_4k *vlan4k) 1723 { 1724 u32 data[3]; 1725 int ret; 1726 int i; 1727 1728 if (vlan4k->vid >= RTL8366RB_NUM_VIDS || 1729 vlan4k->member > RTL8366RB_VLAN_MEMBER_MASK || 1730 vlan4k->untag > RTL8366RB_VLAN_UNTAG_MASK || 1731 vlan4k->fid > RTL8366RB_FIDMAX) 1732 return -EINVAL; 1733 1734 data[0] = vlan4k->vid & RTL8366RB_VLAN_VID_MASK; 1735 data[1] = (vlan4k->member & RTL8366RB_VLAN_MEMBER_MASK) | 1736 ((vlan4k->untag & RTL8366RB_VLAN_UNTAG_MASK) << 1737 RTL8366RB_VLAN_UNTAG_SHIFT); 1738 data[2] = vlan4k->fid & RTL8366RB_VLAN_FID_MASK; 1739 1740 for (i = 0; i < 3; i++) { 1741 ret = regmap_write(priv->map, 1742 RTL8366RB_VLAN_TABLE_WRITE_BASE + i, 1743 data[i]); 1744 if (ret) 1745 return ret; 1746 } 1747 1748 /* write table access control word */ 1749 ret = regmap_write(priv->map, RTL8366RB_TABLE_ACCESS_CTRL_REG, 1750 RTL8366RB_TABLE_VLAN_WRITE_CTRL); 1751 1752 return ret; 1753 } 1754 1755 static int rtl8366rb_get_vlan_mc(struct realtek_priv *priv, u32 index, 1756 struct rtl8366_vlan_mc *vlanmc) 1757 { 1758 u32 data[3]; 1759 int ret; 1760 int i; 1761 1762 memset(vlanmc, '\0', sizeof(struct rtl8366_vlan_mc)); 1763 1764 if (index >= RTL8366RB_NUM_VLANS) 1765 return -EINVAL; 1766 1767 for (i = 0; i < 3; i++) { 1768 ret = regmap_read(priv->map, 1769 RTL8366RB_VLAN_MC_BASE(index) + i, 1770 &data[i]); 1771 if (ret) 1772 return ret; 1773 } 1774 1775 vlanmc->vid = data[0] & RTL8366RB_VLAN_VID_MASK; 1776 vlanmc->priority = (data[0] >> RTL8366RB_VLAN_PRIORITY_SHIFT) & 1777 RTL8366RB_VLAN_PRIORITY_MASK; 1778 vlanmc->untag = (data[1] >> RTL8366RB_VLAN_UNTAG_SHIFT) & 1779 RTL8366RB_VLAN_UNTAG_MASK; 1780 vlanmc->member = data[1] & RTL8366RB_VLAN_MEMBER_MASK; 1781 vlanmc->fid = data[2] & RTL8366RB_VLAN_FID_MASK; 1782 1783 return 0; 1784 } 1785 1786 static int rtl8366rb_set_vlan_mc(struct realtek_priv *priv, u32 index, 1787 const struct rtl8366_vlan_mc *vlanmc) 1788 { 1789 u32 data[3]; 1790 int ret; 1791 int i; 1792 1793 if (index >= RTL8366RB_NUM_VLANS || 1794 vlanmc->vid >= RTL8366RB_NUM_VIDS || 1795 vlanmc->priority > RTL8366RB_PRIORITYMAX || 1796 vlanmc->member > RTL8366RB_VLAN_MEMBER_MASK || 1797 vlanmc->untag > RTL8366RB_VLAN_UNTAG_MASK || 1798 vlanmc->fid > RTL8366RB_FIDMAX) 1799 return -EINVAL; 1800 1801 data[0] = (vlanmc->vid & RTL8366RB_VLAN_VID_MASK) | 1802 ((vlanmc->priority & RTL8366RB_VLAN_PRIORITY_MASK) << 1803 RTL8366RB_VLAN_PRIORITY_SHIFT); 1804 data[1] = (vlanmc->member & RTL8366RB_VLAN_MEMBER_MASK) | 1805 ((vlanmc->untag & RTL8366RB_VLAN_UNTAG_MASK) << 1806 RTL8366RB_VLAN_UNTAG_SHIFT); 1807 data[2] = vlanmc->fid & RTL8366RB_VLAN_FID_MASK; 1808 1809 for (i = 0; i < 3; i++) { 1810 ret = regmap_write(priv->map, 1811 RTL8366RB_VLAN_MC_BASE(index) + i, 1812 data[i]); 1813 if (ret) 1814 return ret; 1815 } 1816 1817 return 0; 1818 } 1819 1820 static int rtl8366rb_get_mc_index(struct realtek_priv *priv, int port, int *val) 1821 { 1822 u32 data; 1823 int ret; 1824 1825 if (port >= priv->num_ports) 1826 return -EINVAL; 1827 1828 ret = regmap_read(priv->map, RTL8366RB_PORT_VLAN_CTRL_REG(port), 1829 &data); 1830 if (ret) 1831 return ret; 1832 1833 *val = (data >> RTL8366RB_PORT_VLAN_CTRL_SHIFT(port)) & 1834 RTL8366RB_PORT_VLAN_CTRL_MASK; 1835 1836 return 0; 1837 } 1838 1839 static int rtl8366rb_set_mc_index(struct realtek_priv *priv, int port, int index) 1840 { 1841 struct dsa_switch *ds = &priv->ds; 1842 struct rtl8366rb *rb; 1843 bool pvid_enabled; 1844 int ret; 1845 1846 rb = priv->chip_data; 1847 pvid_enabled = !!index; 1848 1849 if (port >= priv->num_ports || index >= RTL8366RB_NUM_VLANS) 1850 return -EINVAL; 1851 1852 ret = regmap_update_bits(priv->map, RTL8366RB_PORT_VLAN_CTRL_REG(port), 1853 RTL8366RB_PORT_VLAN_CTRL_MASK << 1854 RTL8366RB_PORT_VLAN_CTRL_SHIFT(port), 1855 (index & RTL8366RB_PORT_VLAN_CTRL_MASK) << 1856 RTL8366RB_PORT_VLAN_CTRL_SHIFT(port)); 1857 if (ret) 1858 return ret; 1859 1860 rb->pvid_enabled[port] = pvid_enabled; 1861 1862 /* If VLAN filtering is enabled and PVID is also enabled, we must 1863 * not drop any untagged or C-tagged frames. Make sure to update the 1864 * filtering setting. 1865 */ 1866 if (dsa_port_is_vlan_filtering(dsa_to_port(ds, port))) 1867 ret = rtl8366rb_drop_untagged(priv, port, !pvid_enabled); 1868 1869 return ret; 1870 } 1871 1872 static bool rtl8366rb_is_vlan_valid(struct realtek_priv *priv, unsigned int vlan) 1873 { 1874 unsigned int max = RTL8366RB_NUM_VLANS - 1; 1875 1876 if (priv->vlan4k_enabled) 1877 max = RTL8366RB_NUM_VIDS - 1; 1878 1879 if (vlan > max) 1880 return false; 1881 1882 return true; 1883 } 1884 1885 static int rtl8366rb_enable_vlan(struct realtek_priv *priv, bool enable) 1886 { 1887 dev_dbg(priv->dev, "%s VLAN\n", enable ? "enable" : "disable"); 1888 return regmap_update_bits(priv->map, 1889 RTL8366RB_SGCR, RTL8366RB_SGCR_EN_VLAN, 1890 enable ? RTL8366RB_SGCR_EN_VLAN : 0); 1891 } 1892 1893 static int rtl8366rb_enable_vlan4k(struct realtek_priv *priv, bool enable) 1894 { 1895 dev_dbg(priv->dev, "%s VLAN 4k\n", enable ? "enable" : "disable"); 1896 return regmap_update_bits(priv->map, RTL8366RB_SGCR, 1897 RTL8366RB_SGCR_EN_VLAN_4KTB, 1898 enable ? RTL8366RB_SGCR_EN_VLAN_4KTB : 0); 1899 } 1900 1901 static int rtl8366rb_phy_read(struct realtek_priv *priv, int phy, int regnum) 1902 { 1903 u32 val; 1904 u32 reg; 1905 int ret; 1906 1907 if (phy > RTL8366RB_PHY_NO_MAX) 1908 return -EINVAL; 1909 1910 rtl83xx_lock(priv); 1911 1912 ret = regmap_write(priv->map_nolock, RTL8366RB_PHY_ACCESS_CTRL_REG, 1913 RTL8366RB_PHY_CTRL_READ); 1914 if (ret) 1915 goto out; 1916 1917 reg = 0x8000 | (1 << (phy + RTL8366RB_PHY_NO_OFFSET)) | regnum; 1918 1919 ret = regmap_write(priv->map_nolock, reg, 0); 1920 if (ret) { 1921 dev_err(priv->dev, 1922 "failed to write PHY%d reg %04x @ %04x, ret %d\n", 1923 phy, regnum, reg, ret); 1924 goto out; 1925 } 1926 1927 ret = regmap_read(priv->map_nolock, RTL8366RB_PHY_ACCESS_DATA_REG, 1928 &val); 1929 if (ret) 1930 goto out; 1931 1932 ret = val; 1933 1934 dev_dbg(priv->dev, "read PHY%d register 0x%04x @ %08x, val <- %04x\n", 1935 phy, regnum, reg, val); 1936 1937 out: 1938 rtl83xx_unlock(priv); 1939 1940 return ret; 1941 } 1942 1943 static int rtl8366rb_phy_write(struct realtek_priv *priv, int phy, int regnum, 1944 u16 val) 1945 { 1946 u32 reg; 1947 int ret; 1948 1949 if (phy > RTL8366RB_PHY_NO_MAX) 1950 return -EINVAL; 1951 1952 rtl83xx_lock(priv); 1953 1954 ret = regmap_write(priv->map_nolock, RTL8366RB_PHY_ACCESS_CTRL_REG, 1955 RTL8366RB_PHY_CTRL_WRITE); 1956 if (ret) 1957 goto out; 1958 1959 reg = 0x8000 | (1 << (phy + RTL8366RB_PHY_NO_OFFSET)) | regnum; 1960 1961 dev_dbg(priv->dev, "write PHY%d register 0x%04x @ %04x, val -> %04x\n", 1962 phy, regnum, reg, val); 1963 1964 ret = regmap_write(priv->map_nolock, reg, val); 1965 if (ret) 1966 goto out; 1967 1968 out: 1969 rtl83xx_unlock(priv); 1970 1971 return ret; 1972 } 1973 1974 static int rtl8366rb_reset_chip(struct realtek_priv *priv) 1975 { 1976 int timeout = 10; 1977 u32 val; 1978 int ret; 1979 1980 priv->write_reg_noack(priv, RTL8366RB_RESET_CTRL_REG, 1981 RTL8366RB_CHIP_CTRL_RESET_HW); 1982 do { 1983 usleep_range(20000, 25000); 1984 ret = regmap_read(priv->map, RTL8366RB_RESET_CTRL_REG, &val); 1985 if (ret) 1986 return ret; 1987 1988 if (!(val & RTL8366RB_CHIP_CTRL_RESET_HW)) 1989 break; 1990 } while (--timeout); 1991 1992 if (!timeout) { 1993 dev_err(priv->dev, "timeout waiting for the switch to reset\n"); 1994 return -EIO; 1995 } 1996 1997 return 0; 1998 } 1999 2000 static int rtl8366rb_detect(struct realtek_priv *priv) 2001 { 2002 struct device *dev = priv->dev; 2003 int ret; 2004 u32 val; 2005 2006 /* Detect device */ 2007 ret = regmap_read(priv->map, 0x5c, &val); 2008 if (ret) { 2009 dev_err(dev, "can't get chip ID (%d)\n", ret); 2010 return ret; 2011 } 2012 2013 switch (val) { 2014 case 0x6027: 2015 dev_info(dev, "found an RTL8366S switch\n"); 2016 dev_err(dev, "this switch is not yet supported, submit patches!\n"); 2017 return -ENODEV; 2018 case 0x5937: 2019 dev_info(dev, "found an RTL8366RB switch\n"); 2020 priv->cpu_port = RTL8366RB_PORT_NUM_CPU; 2021 priv->num_ports = RTL8366RB_NUM_PORTS; 2022 priv->num_vlan_mc = RTL8366RB_NUM_VLANS; 2023 priv->mib_counters = rtl8366rb_mib_counters; 2024 priv->num_mib_counters = ARRAY_SIZE(rtl8366rb_mib_counters); 2025 break; 2026 default: 2027 dev_info(dev, "found an Unknown Realtek switch (id=0x%04x)\n", 2028 val); 2029 break; 2030 } 2031 2032 ret = rtl8366rb_reset_chip(priv); 2033 if (ret) 2034 return ret; 2035 2036 return 0; 2037 } 2038 2039 static const struct phylink_mac_ops rtl8366rb_phylink_mac_ops = { 2040 .mac_config = rtl8366rb_mac_config, 2041 .mac_link_down = rtl8366rb_mac_link_down, 2042 .mac_link_up = rtl8366rb_mac_link_up, 2043 }; 2044 2045 static const struct dsa_switch_ops rtl8366rb_switch_ops = { 2046 .get_tag_protocol = rtl8366_get_tag_protocol, 2047 .setup = rtl8366rb_setup, 2048 .phylink_get_caps = rtl8366rb_phylink_get_caps, 2049 .get_strings = rtl8366_get_strings, 2050 .get_ethtool_stats = rtl8366_get_ethtool_stats, 2051 .get_sset_count = rtl8366_get_sset_count, 2052 .port_bridge_join = rtl8366rb_port_bridge_join, 2053 .port_bridge_leave = rtl8366rb_port_bridge_leave, 2054 .port_vlan_filtering = rtl8366rb_vlan_filtering, 2055 .port_vlan_add = rtl8366_vlan_add, 2056 .port_vlan_del = rtl8366_vlan_del, 2057 .port_enable = rtl8366rb_port_enable, 2058 .port_disable = rtl8366rb_port_disable, 2059 .port_pre_bridge_flags = rtl8366rb_port_pre_bridge_flags, 2060 .port_bridge_flags = rtl8366rb_port_bridge_flags, 2061 .port_stp_state_set = rtl8366rb_port_stp_state_set, 2062 .port_fast_age = rtl8366rb_port_fast_age, 2063 .port_change_mtu = rtl8366rb_change_mtu, 2064 .port_max_mtu = rtl8366rb_max_mtu, 2065 }; 2066 2067 static const struct realtek_ops rtl8366rb_ops = { 2068 .detect = rtl8366rb_detect, 2069 .get_vlan_mc = rtl8366rb_get_vlan_mc, 2070 .set_vlan_mc = rtl8366rb_set_vlan_mc, 2071 .get_vlan_4k = rtl8366rb_get_vlan_4k, 2072 .set_vlan_4k = rtl8366rb_set_vlan_4k, 2073 .get_mc_index = rtl8366rb_get_mc_index, 2074 .set_mc_index = rtl8366rb_set_mc_index, 2075 .get_mib_counter = rtl8366rb_get_mib_counter, 2076 .is_vlan_valid = rtl8366rb_is_vlan_valid, 2077 .enable_vlan = rtl8366rb_enable_vlan, 2078 .enable_vlan4k = rtl8366rb_enable_vlan4k, 2079 .phy_read = rtl8366rb_phy_read, 2080 .phy_write = rtl8366rb_phy_write, 2081 }; 2082 2083 const struct realtek_variant rtl8366rb_variant = { 2084 .ds_ops = &rtl8366rb_switch_ops, 2085 .ops = &rtl8366rb_ops, 2086 .phylink_mac_ops = &rtl8366rb_phylink_mac_ops, 2087 .clk_delay = 10, 2088 .cmd_read = 0xa9, 2089 .cmd_write = 0xa8, 2090 .chip_data_sz = sizeof(struct rtl8366rb), 2091 }; 2092 2093 static const struct of_device_id rtl8366rb_of_match[] = { 2094 { .compatible = "realtek,rtl8366rb", .data = &rtl8366rb_variant, }, 2095 { /* sentinel */ }, 2096 }; 2097 MODULE_DEVICE_TABLE(of, rtl8366rb_of_match); 2098 2099 static struct platform_driver rtl8366rb_smi_driver = { 2100 .driver = { 2101 .name = "rtl8366rb-smi", 2102 .of_match_table = rtl8366rb_of_match, 2103 }, 2104 .probe = realtek_smi_probe, 2105 .remove = realtek_smi_remove, 2106 .shutdown = realtek_smi_shutdown, 2107 }; 2108 2109 static struct mdio_driver rtl8366rb_mdio_driver = { 2110 .mdiodrv.driver = { 2111 .name = "rtl8366rb-mdio", 2112 .of_match_table = rtl8366rb_of_match, 2113 }, 2114 .probe = realtek_mdio_probe, 2115 .remove = realtek_mdio_remove, 2116 .shutdown = realtek_mdio_shutdown, 2117 }; 2118 2119 static int rtl8366rb_init(void) 2120 { 2121 int ret; 2122 2123 ret = realtek_mdio_driver_register(&rtl8366rb_mdio_driver); 2124 if (ret) 2125 return ret; 2126 2127 ret = realtek_smi_driver_register(&rtl8366rb_smi_driver); 2128 if (ret) { 2129 realtek_mdio_driver_unregister(&rtl8366rb_mdio_driver); 2130 return ret; 2131 } 2132 2133 return 0; 2134 } 2135 module_init(rtl8366rb_init); 2136 2137 static void __exit rtl8366rb_exit(void) 2138 { 2139 realtek_smi_driver_unregister(&rtl8366rb_smi_driver); 2140 realtek_mdio_driver_unregister(&rtl8366rb_mdio_driver); 2141 } 2142 module_exit(rtl8366rb_exit); 2143 2144 MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>"); 2145 MODULE_DESCRIPTION("Driver for RTL8366RB ethernet switch"); 2146 MODULE_LICENSE("GPL"); 2147 MODULE_IMPORT_NS(REALTEK_DSA); 2148