Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Broadcom Starfighter 2 DSA switch driver |
| 3 | * |
| 4 | * Copyright (C) 2014, Broadcom Corporation |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | */ |
| 11 | |
| 12 | #include <linux/list.h> |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/netdevice.h> |
| 15 | #include <linux/interrupt.h> |
| 16 | #include <linux/platform_device.h> |
| 17 | #include <linux/of.h> |
| 18 | #include <linux/phy.h> |
| 19 | #include <linux/phy_fixed.h> |
| 20 | #include <linux/mii.h> |
| 21 | #include <linux/of.h> |
| 22 | #include <linux/of_irq.h> |
| 23 | #include <linux/of_address.h> |
Florian Fainelli | 8b7c94e | 2015-10-23 12:11:08 -0700 | [diff] [blame] | 24 | #include <linux/of_net.h> |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 25 | #include <net/dsa.h> |
Florian Fainelli | 96e65d7 | 2014-09-18 17:31:25 -0700 | [diff] [blame] | 26 | #include <linux/ethtool.h> |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 27 | #include <linux/if_bridge.h> |
Florian Fainelli | aafc66f | 2015-06-10 18:08:01 -0700 | [diff] [blame] | 28 | #include <linux/brcmphy.h> |
Florian Fainelli | 680060d | 2015-10-23 11:38:07 -0700 | [diff] [blame] | 29 | #include <linux/etherdevice.h> |
| 30 | #include <net/switchdev.h> |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 31 | |
| 32 | #include "bcm_sf2.h" |
| 33 | #include "bcm_sf2_regs.h" |
| 34 | |
| 35 | /* String, offset, and register size in bytes if different from 4 bytes */ |
| 36 | static const struct bcm_sf2_hw_stats bcm_sf2_mib[] = { |
| 37 | { "TxOctets", 0x000, 8 }, |
| 38 | { "TxDropPkts", 0x020 }, |
| 39 | { "TxQPKTQ0", 0x030 }, |
| 40 | { "TxBroadcastPkts", 0x040 }, |
| 41 | { "TxMulticastPkts", 0x050 }, |
| 42 | { "TxUnicastPKts", 0x060 }, |
| 43 | { "TxCollisions", 0x070 }, |
| 44 | { "TxSingleCollision", 0x080 }, |
| 45 | { "TxMultipleCollision", 0x090 }, |
| 46 | { "TxDeferredCollision", 0x0a0 }, |
| 47 | { "TxLateCollision", 0x0b0 }, |
| 48 | { "TxExcessiveCollision", 0x0c0 }, |
| 49 | { "TxFrameInDisc", 0x0d0 }, |
| 50 | { "TxPausePkts", 0x0e0 }, |
| 51 | { "TxQPKTQ1", 0x0f0 }, |
| 52 | { "TxQPKTQ2", 0x100 }, |
| 53 | { "TxQPKTQ3", 0x110 }, |
| 54 | { "TxQPKTQ4", 0x120 }, |
| 55 | { "TxQPKTQ5", 0x130 }, |
| 56 | { "RxOctets", 0x140, 8 }, |
| 57 | { "RxUndersizePkts", 0x160 }, |
| 58 | { "RxPausePkts", 0x170 }, |
| 59 | { "RxPkts64Octets", 0x180 }, |
| 60 | { "RxPkts65to127Octets", 0x190 }, |
| 61 | { "RxPkts128to255Octets", 0x1a0 }, |
| 62 | { "RxPkts256to511Octets", 0x1b0 }, |
| 63 | { "RxPkts512to1023Octets", 0x1c0 }, |
| 64 | { "RxPkts1024toMaxPktsOctets", 0x1d0 }, |
| 65 | { "RxOversizePkts", 0x1e0 }, |
| 66 | { "RxJabbers", 0x1f0 }, |
| 67 | { "RxAlignmentErrors", 0x200 }, |
| 68 | { "RxFCSErrors", 0x210 }, |
| 69 | { "RxGoodOctets", 0x220, 8 }, |
| 70 | { "RxDropPkts", 0x240 }, |
| 71 | { "RxUnicastPkts", 0x250 }, |
| 72 | { "RxMulticastPkts", 0x260 }, |
| 73 | { "RxBroadcastPkts", 0x270 }, |
| 74 | { "RxSAChanges", 0x280 }, |
| 75 | { "RxFragments", 0x290 }, |
| 76 | { "RxJumboPkt", 0x2a0 }, |
| 77 | { "RxSymblErr", 0x2b0 }, |
| 78 | { "InRangeErrCount", 0x2c0 }, |
| 79 | { "OutRangeErrCount", 0x2d0 }, |
| 80 | { "EEELpiEvent", 0x2e0 }, |
| 81 | { "EEELpiDuration", 0x2f0 }, |
| 82 | { "RxDiscard", 0x300, 8 }, |
| 83 | { "TxQPKTQ6", 0x320 }, |
| 84 | { "TxQPKTQ7", 0x330 }, |
| 85 | { "TxPkts64Octets", 0x340 }, |
| 86 | { "TxPkts65to127Octets", 0x350 }, |
| 87 | { "TxPkts128to255Octets", 0x360 }, |
| 88 | { "TxPkts256to511Ocets", 0x370 }, |
| 89 | { "TxPkts512to1023Ocets", 0x380 }, |
| 90 | { "TxPkts1024toMaxPktOcets", 0x390 }, |
| 91 | }; |
| 92 | |
| 93 | #define BCM_SF2_STATS_SIZE ARRAY_SIZE(bcm_sf2_mib) |
| 94 | |
| 95 | static void bcm_sf2_sw_get_strings(struct dsa_switch *ds, |
| 96 | int port, uint8_t *data) |
| 97 | { |
| 98 | unsigned int i; |
| 99 | |
| 100 | for (i = 0; i < BCM_SF2_STATS_SIZE; i++) |
| 101 | memcpy(data + i * ETH_GSTRING_LEN, |
| 102 | bcm_sf2_mib[i].string, ETH_GSTRING_LEN); |
| 103 | } |
| 104 | |
| 105 | static void bcm_sf2_sw_get_ethtool_stats(struct dsa_switch *ds, |
| 106 | int port, uint64_t *data) |
| 107 | { |
| 108 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 109 | const struct bcm_sf2_hw_stats *s; |
| 110 | unsigned int i; |
| 111 | u64 val = 0; |
| 112 | u32 offset; |
| 113 | |
| 114 | mutex_lock(&priv->stats_mutex); |
| 115 | |
| 116 | /* Now fetch the per-port counters */ |
| 117 | for (i = 0; i < BCM_SF2_STATS_SIZE; i++) { |
| 118 | s = &bcm_sf2_mib[i]; |
| 119 | |
| 120 | /* Do a latched 64-bit read if needed */ |
| 121 | offset = s->reg + CORE_P_MIB_OFFSET(port); |
| 122 | if (s->sizeof_stat == 8) |
| 123 | val = core_readq(priv, offset); |
| 124 | else |
| 125 | val = core_readl(priv, offset); |
| 126 | |
| 127 | data[i] = (u64)val; |
| 128 | } |
| 129 | |
| 130 | mutex_unlock(&priv->stats_mutex); |
| 131 | } |
| 132 | |
| 133 | static int bcm_sf2_sw_get_sset_count(struct dsa_switch *ds) |
| 134 | { |
| 135 | return BCM_SF2_STATS_SIZE; |
| 136 | } |
| 137 | |
Vivien Didelot | 0209d14 | 2016-04-17 13:23:55 -0400 | [diff] [blame] | 138 | static const char *bcm_sf2_sw_drv_probe(struct device *dsa_dev, |
| 139 | struct device *host_dev, int sw_addr, |
| 140 | void **_priv) |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 141 | { |
Andrew Lunn | 7543a6d | 2016-04-13 02:40:40 +0200 | [diff] [blame] | 142 | struct bcm_sf2_priv *priv; |
| 143 | |
| 144 | priv = devm_kzalloc(dsa_dev, sizeof(*priv), GFP_KERNEL); |
| 145 | if (!priv) |
| 146 | return NULL; |
| 147 | *_priv = priv; |
| 148 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 149 | return "Broadcom Starfighter 2"; |
| 150 | } |
| 151 | |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 152 | static void bcm_sf2_imp_vlan_setup(struct dsa_switch *ds, int cpu_port) |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 153 | { |
| 154 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 155 | unsigned int i; |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 156 | u32 reg; |
| 157 | |
| 158 | /* Enable the IMP Port to be in the same VLAN as the other ports |
| 159 | * on a per-port basis such that we only have Port i and IMP in |
| 160 | * the same VLAN. |
| 161 | */ |
| 162 | for (i = 0; i < priv->hw_params.num_ports; i++) { |
Andrew Lunn | 74c3e2a | 2016-04-13 02:40:44 +0200 | [diff] [blame] | 163 | if (!((1 << i) & ds->enabled_port_mask)) |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 164 | continue; |
| 165 | |
| 166 | reg = core_readl(priv, CORE_PORT_VLAN_CTL_PORT(i)); |
| 167 | reg |= (1 << cpu_port); |
| 168 | core_writel(priv, reg, CORE_PORT_VLAN_CTL_PORT(i)); |
| 169 | } |
| 170 | } |
| 171 | |
| 172 | static void bcm_sf2_imp_setup(struct dsa_switch *ds, int port) |
| 173 | { |
| 174 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 175 | u32 reg, val; |
| 176 | |
| 177 | /* Enable the port memories */ |
| 178 | reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL); |
| 179 | reg &= ~P_TXQ_PSM_VDD(port); |
| 180 | core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL); |
| 181 | |
| 182 | /* Enable Broadcast, Multicast, Unicast forwarding to IMP port */ |
| 183 | reg = core_readl(priv, CORE_IMP_CTL); |
| 184 | reg |= (RX_BCST_EN | RX_MCST_EN | RX_UCST_EN); |
| 185 | reg &= ~(RX_DIS | TX_DIS); |
| 186 | core_writel(priv, reg, CORE_IMP_CTL); |
| 187 | |
| 188 | /* Enable forwarding */ |
| 189 | core_writel(priv, SW_FWDG_EN, CORE_SWMODE); |
| 190 | |
| 191 | /* Enable IMP port in dumb mode */ |
| 192 | reg = core_readl(priv, CORE_SWITCH_CTRL); |
| 193 | reg |= MII_DUMB_FWDG_EN; |
| 194 | core_writel(priv, reg, CORE_SWITCH_CTRL); |
| 195 | |
| 196 | /* Resolve which bit controls the Broadcom tag */ |
| 197 | switch (port) { |
| 198 | case 8: |
| 199 | val = BRCM_HDR_EN_P8; |
| 200 | break; |
| 201 | case 7: |
| 202 | val = BRCM_HDR_EN_P7; |
| 203 | break; |
| 204 | case 5: |
| 205 | val = BRCM_HDR_EN_P5; |
| 206 | break; |
| 207 | default: |
| 208 | val = 0; |
| 209 | break; |
| 210 | } |
| 211 | |
| 212 | /* Enable Broadcom tags for IMP port */ |
| 213 | reg = core_readl(priv, CORE_BRCM_HDR_CTRL); |
| 214 | reg |= val; |
| 215 | core_writel(priv, reg, CORE_BRCM_HDR_CTRL); |
| 216 | |
| 217 | /* Enable reception Broadcom tag for CPU TX (switch RX) to |
| 218 | * allow us to tag outgoing frames |
| 219 | */ |
| 220 | reg = core_readl(priv, CORE_BRCM_HDR_RX_DIS); |
| 221 | reg &= ~(1 << port); |
| 222 | core_writel(priv, reg, CORE_BRCM_HDR_RX_DIS); |
| 223 | |
| 224 | /* Enable transmission of Broadcom tags from the switch (CPU RX) to |
| 225 | * allow delivering frames to the per-port net_devices |
| 226 | */ |
| 227 | reg = core_readl(priv, CORE_BRCM_HDR_TX_DIS); |
| 228 | reg &= ~(1 << port); |
| 229 | core_writel(priv, reg, CORE_BRCM_HDR_TX_DIS); |
| 230 | |
| 231 | /* Force link status for IMP port */ |
| 232 | reg = core_readl(priv, CORE_STS_OVERRIDE_IMP); |
| 233 | reg |= (MII_SW_OR | LINK_STS); |
| 234 | core_writel(priv, reg, CORE_STS_OVERRIDE_IMP); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 235 | } |
| 236 | |
Florian Fainelli | 450b05c | 2014-09-24 17:05:22 -0700 | [diff] [blame] | 237 | static void bcm_sf2_eee_enable_set(struct dsa_switch *ds, int port, bool enable) |
| 238 | { |
| 239 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 240 | u32 reg; |
| 241 | |
| 242 | reg = core_readl(priv, CORE_EEE_EN_CTRL); |
| 243 | if (enable) |
| 244 | reg |= 1 << port; |
| 245 | else |
| 246 | reg &= ~(1 << port); |
| 247 | core_writel(priv, reg, CORE_EEE_EN_CTRL); |
| 248 | } |
| 249 | |
Florian Fainelli | b083668 | 2015-02-05 11:40:41 -0800 | [diff] [blame] | 250 | static void bcm_sf2_gphy_enable_set(struct dsa_switch *ds, bool enable) |
| 251 | { |
| 252 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 253 | u32 reg; |
| 254 | |
Florian Fainelli | 9af197a | 2015-02-05 11:40:42 -0800 | [diff] [blame] | 255 | reg = reg_readl(priv, REG_SPHY_CNTRL); |
| 256 | if (enable) { |
| 257 | reg |= PHY_RESET; |
| 258 | reg &= ~(EXT_PWR_DOWN | IDDQ_BIAS | CK25_DIS); |
| 259 | reg_writel(priv, reg, REG_SPHY_CNTRL); |
| 260 | udelay(21); |
| 261 | reg = reg_readl(priv, REG_SPHY_CNTRL); |
| 262 | reg &= ~PHY_RESET; |
| 263 | } else { |
| 264 | reg |= EXT_PWR_DOWN | IDDQ_BIAS | PHY_RESET; |
| 265 | reg_writel(priv, reg, REG_SPHY_CNTRL); |
| 266 | mdelay(1); |
| 267 | reg |= CK25_DIS; |
| 268 | } |
| 269 | reg_writel(priv, reg, REG_SPHY_CNTRL); |
Florian Fainelli | b083668 | 2015-02-05 11:40:41 -0800 | [diff] [blame] | 270 | |
Florian Fainelli | 9af197a | 2015-02-05 11:40:42 -0800 | [diff] [blame] | 271 | /* Use PHY-driven LED signaling */ |
| 272 | if (!enable) { |
| 273 | reg = reg_readl(priv, REG_LED_CNTRL(0)); |
| 274 | reg |= SPDLNK_SRC_SEL; |
| 275 | reg_writel(priv, reg, REG_LED_CNTRL(0)); |
| 276 | } |
Florian Fainelli | b083668 | 2015-02-05 11:40:41 -0800 | [diff] [blame] | 277 | } |
| 278 | |
Florian Fainelli | 8b7c94e | 2015-10-23 12:11:08 -0700 | [diff] [blame] | 279 | static inline void bcm_sf2_port_intr_enable(struct bcm_sf2_priv *priv, |
| 280 | int port) |
| 281 | { |
| 282 | unsigned int off; |
| 283 | |
| 284 | switch (port) { |
| 285 | case 7: |
| 286 | off = P7_IRQ_OFF; |
| 287 | break; |
| 288 | case 0: |
| 289 | /* Port 0 interrupts are located on the first bank */ |
| 290 | intrl2_0_mask_clear(priv, P_IRQ_MASK(P0_IRQ_OFF)); |
| 291 | return; |
| 292 | default: |
| 293 | off = P_IRQ_OFF(port); |
| 294 | break; |
| 295 | } |
| 296 | |
| 297 | intrl2_1_mask_clear(priv, P_IRQ_MASK(off)); |
| 298 | } |
| 299 | |
| 300 | static inline void bcm_sf2_port_intr_disable(struct bcm_sf2_priv *priv, |
| 301 | int port) |
| 302 | { |
| 303 | unsigned int off; |
| 304 | |
| 305 | switch (port) { |
| 306 | case 7: |
| 307 | off = P7_IRQ_OFF; |
| 308 | break; |
| 309 | case 0: |
| 310 | /* Port 0 interrupts are located on the first bank */ |
| 311 | intrl2_0_mask_set(priv, P_IRQ_MASK(P0_IRQ_OFF)); |
| 312 | intrl2_0_writel(priv, P_IRQ_MASK(P0_IRQ_OFF), INTRL2_CPU_CLEAR); |
| 313 | return; |
| 314 | default: |
| 315 | off = P_IRQ_OFF(port); |
| 316 | break; |
| 317 | } |
| 318 | |
| 319 | intrl2_1_mask_set(priv, P_IRQ_MASK(off)); |
| 320 | intrl2_1_writel(priv, P_IRQ_MASK(off), INTRL2_CPU_CLEAR); |
| 321 | } |
| 322 | |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 323 | static int bcm_sf2_port_setup(struct dsa_switch *ds, int port, |
| 324 | struct phy_device *phy) |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 325 | { |
| 326 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 327 | s8 cpu_port = ds->dst[ds->index].cpu_port; |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 328 | u32 reg; |
| 329 | |
| 330 | /* Clear the memory power down */ |
| 331 | reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL); |
| 332 | reg &= ~P_TXQ_PSM_VDD(port); |
| 333 | core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL); |
| 334 | |
| 335 | /* Clear the Rx and Tx disable bits and set to no spanning tree */ |
| 336 | core_writel(priv, 0, CORE_G_PCTL_PORT(port)); |
| 337 | |
Florian Fainelli | 9af197a | 2015-02-05 11:40:42 -0800 | [diff] [blame] | 338 | /* Re-enable the GPHY and re-apply workarounds */ |
Florian Fainelli | 8b7c94e | 2015-10-23 12:11:08 -0700 | [diff] [blame] | 339 | if (priv->int_phy_mask & 1 << port && priv->hw_params.num_gphy == 1) { |
Florian Fainelli | 9af197a | 2015-02-05 11:40:42 -0800 | [diff] [blame] | 340 | bcm_sf2_gphy_enable_set(ds, true); |
| 341 | if (phy) { |
| 342 | /* if phy_stop() has been called before, phy |
| 343 | * will be in halted state, and phy_start() |
| 344 | * will call resume. |
| 345 | * |
| 346 | * the resume path does not configure back |
| 347 | * autoneg settings, and since we hard reset |
| 348 | * the phy manually here, we need to reset the |
| 349 | * state machine also. |
| 350 | */ |
| 351 | phy->state = PHY_READY; |
| 352 | phy_init_hw(phy); |
| 353 | } |
| 354 | } |
| 355 | |
Florian Fainelli | 8b7c94e | 2015-10-23 12:11:08 -0700 | [diff] [blame] | 356 | /* Enable MoCA port interrupts to get notified */ |
| 357 | if (port == priv->moca_port) |
| 358 | bcm_sf2_port_intr_enable(priv, port); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 359 | |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 360 | /* Set this port, and only this one to be in the default VLAN, |
| 361 | * if member of a bridge, restore its membership prior to |
| 362 | * bringing down this port. |
| 363 | */ |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 364 | reg = core_readl(priv, CORE_PORT_VLAN_CTL_PORT(port)); |
| 365 | reg &= ~PORT_VLAN_CTRL_MASK; |
| 366 | reg |= (1 << port); |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 367 | reg |= priv->port_sts[port].vlan_ctl_mask; |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 368 | core_writel(priv, reg, CORE_PORT_VLAN_CTL_PORT(port)); |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 369 | |
| 370 | bcm_sf2_imp_vlan_setup(ds, cpu_port); |
| 371 | |
Florian Fainelli | 450b05c | 2014-09-24 17:05:22 -0700 | [diff] [blame] | 372 | /* If EEE was enabled, restore it */ |
| 373 | if (priv->port_sts[port].eee.eee_enabled) |
| 374 | bcm_sf2_eee_enable_set(ds, port, true); |
| 375 | |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 376 | return 0; |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 377 | } |
| 378 | |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 379 | static void bcm_sf2_port_disable(struct dsa_switch *ds, int port, |
| 380 | struct phy_device *phy) |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 381 | { |
| 382 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 383 | u32 off, reg; |
| 384 | |
Florian Fainelli | 96e65d7 | 2014-09-18 17:31:25 -0700 | [diff] [blame] | 385 | if (priv->wol_ports_mask & (1 << port)) |
| 386 | return; |
| 387 | |
Florian Fainelli | 8b7c94e | 2015-10-23 12:11:08 -0700 | [diff] [blame] | 388 | if (port == priv->moca_port) |
| 389 | bcm_sf2_port_intr_disable(priv, port); |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 390 | |
Florian Fainelli | 8b7c94e | 2015-10-23 12:11:08 -0700 | [diff] [blame] | 391 | if (priv->int_phy_mask & 1 << port && priv->hw_params.num_gphy == 1) |
Florian Fainelli | 9af197a | 2015-02-05 11:40:42 -0800 | [diff] [blame] | 392 | bcm_sf2_gphy_enable_set(ds, false); |
| 393 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 394 | if (dsa_is_cpu_port(ds, port)) |
| 395 | off = CORE_IMP_CTL; |
| 396 | else |
| 397 | off = CORE_G_PCTL_PORT(port); |
| 398 | |
| 399 | reg = core_readl(priv, off); |
| 400 | reg |= RX_DIS | TX_DIS; |
| 401 | core_writel(priv, reg, off); |
| 402 | |
| 403 | /* Power down the port memory */ |
| 404 | reg = core_readl(priv, CORE_MEM_PSM_VDD_CTRL); |
| 405 | reg |= P_TXQ_PSM_VDD(port); |
| 406 | core_writel(priv, reg, CORE_MEM_PSM_VDD_CTRL); |
| 407 | } |
| 408 | |
Florian Fainelli | 450b05c | 2014-09-24 17:05:22 -0700 | [diff] [blame] | 409 | /* Returns 0 if EEE was not enabled, or 1 otherwise |
| 410 | */ |
| 411 | static int bcm_sf2_eee_init(struct dsa_switch *ds, int port, |
| 412 | struct phy_device *phy) |
| 413 | { |
| 414 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 415 | struct ethtool_eee *p = &priv->port_sts[port].eee; |
| 416 | int ret; |
| 417 | |
| 418 | p->supported = (SUPPORTED_1000baseT_Full | SUPPORTED_100baseT_Full); |
| 419 | |
| 420 | ret = phy_init_eee(phy, 0); |
| 421 | if (ret) |
| 422 | return 0; |
| 423 | |
| 424 | bcm_sf2_eee_enable_set(ds, port, true); |
| 425 | |
| 426 | return 1; |
| 427 | } |
| 428 | |
| 429 | static int bcm_sf2_sw_get_eee(struct dsa_switch *ds, int port, |
| 430 | struct ethtool_eee *e) |
| 431 | { |
| 432 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 433 | struct ethtool_eee *p = &priv->port_sts[port].eee; |
| 434 | u32 reg; |
| 435 | |
| 436 | reg = core_readl(priv, CORE_EEE_LPI_INDICATE); |
| 437 | e->eee_enabled = p->eee_enabled; |
| 438 | e->eee_active = !!(reg & (1 << port)); |
| 439 | |
| 440 | return 0; |
| 441 | } |
| 442 | |
| 443 | static int bcm_sf2_sw_set_eee(struct dsa_switch *ds, int port, |
| 444 | struct phy_device *phydev, |
| 445 | struct ethtool_eee *e) |
| 446 | { |
| 447 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 448 | struct ethtool_eee *p = &priv->port_sts[port].eee; |
| 449 | |
| 450 | p->eee_enabled = e->eee_enabled; |
| 451 | |
| 452 | if (!p->eee_enabled) { |
| 453 | bcm_sf2_eee_enable_set(ds, port, false); |
| 454 | } else { |
| 455 | p->eee_enabled = bcm_sf2_eee_init(ds, port, phydev); |
| 456 | if (!p->eee_enabled) |
| 457 | return -EOPNOTSUPP; |
| 458 | } |
| 459 | |
| 460 | return 0; |
| 461 | } |
| 462 | |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 463 | /* Fast-ageing of ARL entries for a given port, equivalent to an ARL |
| 464 | * flush for that port. |
| 465 | */ |
| 466 | static int bcm_sf2_sw_fast_age_port(struct dsa_switch *ds, int port) |
| 467 | { |
| 468 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 469 | unsigned int timeout = 1000; |
| 470 | u32 reg; |
| 471 | |
| 472 | core_writel(priv, port, CORE_FAST_AGE_PORT); |
| 473 | |
| 474 | reg = core_readl(priv, CORE_FAST_AGE_CTRL); |
Florian Fainelli | 39797a2 | 2015-09-05 13:07:27 -0700 | [diff] [blame] | 475 | reg |= EN_AGE_PORT | EN_AGE_DYNAMIC | FAST_AGE_STR_DONE; |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 476 | core_writel(priv, reg, CORE_FAST_AGE_CTRL); |
| 477 | |
| 478 | do { |
| 479 | reg = core_readl(priv, CORE_FAST_AGE_CTRL); |
| 480 | if (!(reg & FAST_AGE_STR_DONE)) |
| 481 | break; |
| 482 | |
| 483 | cpu_relax(); |
| 484 | } while (timeout--); |
| 485 | |
| 486 | if (!timeout) |
| 487 | return -ETIMEDOUT; |
| 488 | |
Florian Fainelli | 39797a2 | 2015-09-05 13:07:27 -0700 | [diff] [blame] | 489 | core_writel(priv, 0, CORE_FAST_AGE_CTRL); |
| 490 | |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 491 | return 0; |
| 492 | } |
| 493 | |
| 494 | static int bcm_sf2_sw_br_join(struct dsa_switch *ds, int port, |
Vivien Didelot | a669275 | 2016-02-12 12:09:39 -0500 | [diff] [blame] | 495 | struct net_device *bridge) |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 496 | { |
| 497 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 498 | unsigned int i; |
| 499 | u32 reg, p_ctl; |
| 500 | |
Vivien Didelot | a669275 | 2016-02-12 12:09:39 -0500 | [diff] [blame] | 501 | priv->port_sts[port].bridge_dev = bridge; |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 502 | p_ctl = core_readl(priv, CORE_PORT_VLAN_CTL_PORT(port)); |
| 503 | |
| 504 | for (i = 0; i < priv->hw_params.num_ports; i++) { |
Vivien Didelot | a669275 | 2016-02-12 12:09:39 -0500 | [diff] [blame] | 505 | if (priv->port_sts[i].bridge_dev != bridge) |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 506 | continue; |
| 507 | |
| 508 | /* Add this local port to the remote port VLAN control |
| 509 | * membership and update the remote port bitmask |
| 510 | */ |
| 511 | reg = core_readl(priv, CORE_PORT_VLAN_CTL_PORT(i)); |
| 512 | reg |= 1 << port; |
| 513 | core_writel(priv, reg, CORE_PORT_VLAN_CTL_PORT(i)); |
| 514 | priv->port_sts[i].vlan_ctl_mask = reg; |
| 515 | |
| 516 | p_ctl |= 1 << i; |
| 517 | } |
| 518 | |
| 519 | /* Configure the local port VLAN control membership to include |
| 520 | * remote ports and update the local port bitmask |
| 521 | */ |
| 522 | core_writel(priv, p_ctl, CORE_PORT_VLAN_CTL_PORT(port)); |
| 523 | priv->port_sts[port].vlan_ctl_mask = p_ctl; |
| 524 | |
| 525 | return 0; |
| 526 | } |
| 527 | |
Vivien Didelot | 16bfa70 | 2016-03-13 16:21:33 -0400 | [diff] [blame] | 528 | static void bcm_sf2_sw_br_leave(struct dsa_switch *ds, int port) |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 529 | { |
| 530 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
Vivien Didelot | a669275 | 2016-02-12 12:09:39 -0500 | [diff] [blame] | 531 | struct net_device *bridge = priv->port_sts[port].bridge_dev; |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 532 | unsigned int i; |
| 533 | u32 reg, p_ctl; |
| 534 | |
| 535 | p_ctl = core_readl(priv, CORE_PORT_VLAN_CTL_PORT(port)); |
| 536 | |
| 537 | for (i = 0; i < priv->hw_params.num_ports; i++) { |
| 538 | /* Don't touch the remaining ports */ |
Vivien Didelot | a669275 | 2016-02-12 12:09:39 -0500 | [diff] [blame] | 539 | if (priv->port_sts[i].bridge_dev != bridge) |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 540 | continue; |
| 541 | |
| 542 | reg = core_readl(priv, CORE_PORT_VLAN_CTL_PORT(i)); |
| 543 | reg &= ~(1 << port); |
| 544 | core_writel(priv, reg, CORE_PORT_VLAN_CTL_PORT(i)); |
| 545 | priv->port_sts[port].vlan_ctl_mask = reg; |
| 546 | |
| 547 | /* Prevent self removal to preserve isolation */ |
| 548 | if (port != i) |
| 549 | p_ctl &= ~(1 << i); |
| 550 | } |
| 551 | |
| 552 | core_writel(priv, p_ctl, CORE_PORT_VLAN_CTL_PORT(port)); |
| 553 | priv->port_sts[port].vlan_ctl_mask = p_ctl; |
Vivien Didelot | a669275 | 2016-02-12 12:09:39 -0500 | [diff] [blame] | 554 | priv->port_sts[port].bridge_dev = NULL; |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 555 | } |
| 556 | |
Vivien Didelot | 43c44a9 | 2016-04-06 11:55:03 -0400 | [diff] [blame] | 557 | static void bcm_sf2_sw_br_set_stp_state(struct dsa_switch *ds, int port, |
| 558 | u8 state) |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 559 | { |
| 560 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 561 | u8 hw_state, cur_hw_state; |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 562 | u32 reg; |
| 563 | |
| 564 | reg = core_readl(priv, CORE_G_PCTL_PORT(port)); |
Florian Fainelli | 39797a2 | 2015-09-05 13:07:27 -0700 | [diff] [blame] | 565 | cur_hw_state = reg & (G_MISTP_STATE_MASK << G_MISTP_STATE_SHIFT); |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 566 | |
| 567 | switch (state) { |
| 568 | case BR_STATE_DISABLED: |
| 569 | hw_state = G_MISTP_DIS_STATE; |
| 570 | break; |
| 571 | case BR_STATE_LISTENING: |
| 572 | hw_state = G_MISTP_LISTEN_STATE; |
| 573 | break; |
| 574 | case BR_STATE_LEARNING: |
| 575 | hw_state = G_MISTP_LEARN_STATE; |
| 576 | break; |
| 577 | case BR_STATE_FORWARDING: |
| 578 | hw_state = G_MISTP_FWD_STATE; |
| 579 | break; |
| 580 | case BR_STATE_BLOCKING: |
| 581 | hw_state = G_MISTP_BLOCK_STATE; |
| 582 | break; |
| 583 | default: |
| 584 | pr_err("%s: invalid STP state: %d\n", __func__, state); |
Vivien Didelot | 43c44a9 | 2016-04-06 11:55:03 -0400 | [diff] [blame] | 585 | return; |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 586 | } |
| 587 | |
| 588 | /* Fast-age ARL entries if we are moving a port from Learning or |
Florian Fainelli | 39797a2 | 2015-09-05 13:07:27 -0700 | [diff] [blame] | 589 | * Forwarding (cur_hw_state) state to Disabled, Blocking or Listening |
| 590 | * state (hw_state) |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 591 | */ |
| 592 | if (cur_hw_state != hw_state) { |
Florian Fainelli | 39797a2 | 2015-09-05 13:07:27 -0700 | [diff] [blame] | 593 | if (cur_hw_state >= G_MISTP_LEARN_STATE && |
| 594 | hw_state <= G_MISTP_LISTEN_STATE) { |
Vivien Didelot | 43c44a9 | 2016-04-06 11:55:03 -0400 | [diff] [blame] | 595 | if (bcm_sf2_sw_fast_age_port(ds, port)) { |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 596 | pr_err("%s: fast-ageing failed\n", __func__); |
Vivien Didelot | 43c44a9 | 2016-04-06 11:55:03 -0400 | [diff] [blame] | 597 | return; |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 598 | } |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | reg = core_readl(priv, CORE_G_PCTL_PORT(port)); |
| 603 | reg &= ~(G_MISTP_STATE_MASK << G_MISTP_STATE_SHIFT); |
| 604 | reg |= hw_state; |
| 605 | core_writel(priv, reg, CORE_G_PCTL_PORT(port)); |
Florian Fainelli | 12f460f | 2015-02-24 13:15:34 -0800 | [diff] [blame] | 606 | } |
| 607 | |
Florian Fainelli | 680060d | 2015-10-23 11:38:07 -0700 | [diff] [blame] | 608 | /* Address Resolution Logic routines */ |
| 609 | static int bcm_sf2_arl_op_wait(struct bcm_sf2_priv *priv) |
| 610 | { |
| 611 | unsigned int timeout = 10; |
| 612 | u32 reg; |
| 613 | |
| 614 | do { |
| 615 | reg = core_readl(priv, CORE_ARLA_RWCTL); |
| 616 | if (!(reg & ARL_STRTDN)) |
| 617 | return 0; |
| 618 | |
| 619 | usleep_range(1000, 2000); |
| 620 | } while (timeout--); |
| 621 | |
| 622 | return -ETIMEDOUT; |
| 623 | } |
| 624 | |
| 625 | static int bcm_sf2_arl_rw_op(struct bcm_sf2_priv *priv, unsigned int op) |
| 626 | { |
| 627 | u32 cmd; |
| 628 | |
| 629 | if (op > ARL_RW) |
| 630 | return -EINVAL; |
| 631 | |
| 632 | cmd = core_readl(priv, CORE_ARLA_RWCTL); |
| 633 | cmd &= ~IVL_SVL_SELECT; |
| 634 | cmd |= ARL_STRTDN; |
| 635 | if (op) |
| 636 | cmd |= ARL_RW; |
| 637 | else |
| 638 | cmd &= ~ARL_RW; |
| 639 | core_writel(priv, cmd, CORE_ARLA_RWCTL); |
| 640 | |
| 641 | return bcm_sf2_arl_op_wait(priv); |
| 642 | } |
| 643 | |
| 644 | static int bcm_sf2_arl_read(struct bcm_sf2_priv *priv, u64 mac, |
| 645 | u16 vid, struct bcm_sf2_arl_entry *ent, u8 *idx, |
| 646 | bool is_valid) |
| 647 | { |
| 648 | unsigned int i; |
| 649 | int ret; |
| 650 | |
| 651 | ret = bcm_sf2_arl_op_wait(priv); |
| 652 | if (ret) |
| 653 | return ret; |
| 654 | |
| 655 | /* Read the 4 bins */ |
| 656 | for (i = 0; i < 4; i++) { |
| 657 | u64 mac_vid; |
| 658 | u32 fwd_entry; |
| 659 | |
| 660 | mac_vid = core_readq(priv, CORE_ARLA_MACVID_ENTRY(i)); |
| 661 | fwd_entry = core_readl(priv, CORE_ARLA_FWD_ENTRY(i)); |
| 662 | bcm_sf2_arl_to_entry(ent, mac_vid, fwd_entry); |
| 663 | |
| 664 | if (ent->is_valid && is_valid) { |
| 665 | *idx = i; |
| 666 | return 0; |
| 667 | } |
| 668 | |
| 669 | /* This is the MAC we just deleted */ |
| 670 | if (!is_valid && (mac_vid & mac)) |
| 671 | return 0; |
| 672 | } |
| 673 | |
| 674 | return -ENOENT; |
| 675 | } |
| 676 | |
| 677 | static int bcm_sf2_arl_op(struct bcm_sf2_priv *priv, int op, int port, |
| 678 | const unsigned char *addr, u16 vid, bool is_valid) |
| 679 | { |
| 680 | struct bcm_sf2_arl_entry ent; |
| 681 | u32 fwd_entry; |
| 682 | u64 mac, mac_vid = 0; |
| 683 | u8 idx = 0; |
| 684 | int ret; |
| 685 | |
| 686 | /* Convert the array into a 64-bit MAC */ |
| 687 | mac = bcm_sf2_mac_to_u64(addr); |
| 688 | |
| 689 | /* Perform a read for the given MAC and VID */ |
| 690 | core_writeq(priv, mac, CORE_ARLA_MAC); |
| 691 | core_writel(priv, vid, CORE_ARLA_VID); |
| 692 | |
| 693 | /* Issue a read operation for this MAC */ |
| 694 | ret = bcm_sf2_arl_rw_op(priv, 1); |
| 695 | if (ret) |
| 696 | return ret; |
| 697 | |
| 698 | ret = bcm_sf2_arl_read(priv, mac, vid, &ent, &idx, is_valid); |
| 699 | /* If this is a read, just finish now */ |
| 700 | if (op) |
| 701 | return ret; |
| 702 | |
| 703 | /* We could not find a matching MAC, so reset to a new entry */ |
| 704 | if (ret) { |
| 705 | fwd_entry = 0; |
| 706 | idx = 0; |
| 707 | } |
| 708 | |
| 709 | memset(&ent, 0, sizeof(ent)); |
| 710 | ent.port = port; |
| 711 | ent.is_valid = is_valid; |
| 712 | ent.vid = vid; |
| 713 | ent.is_static = true; |
| 714 | memcpy(ent.mac, addr, ETH_ALEN); |
| 715 | bcm_sf2_arl_from_entry(&mac_vid, &fwd_entry, &ent); |
| 716 | |
| 717 | core_writeq(priv, mac_vid, CORE_ARLA_MACVID_ENTRY(idx)); |
| 718 | core_writel(priv, fwd_entry, CORE_ARLA_FWD_ENTRY(idx)); |
| 719 | |
| 720 | ret = bcm_sf2_arl_rw_op(priv, 0); |
| 721 | if (ret) |
| 722 | return ret; |
| 723 | |
| 724 | /* Re-read the entry to check */ |
| 725 | return bcm_sf2_arl_read(priv, mac, vid, &ent, &idx, is_valid); |
| 726 | } |
| 727 | |
| 728 | static int bcm_sf2_sw_fdb_prepare(struct dsa_switch *ds, int port, |
| 729 | const struct switchdev_obj_port_fdb *fdb, |
| 730 | struct switchdev_trans *trans) |
| 731 | { |
| 732 | /* We do not need to do anything specific here yet */ |
| 733 | return 0; |
| 734 | } |
| 735 | |
Vivien Didelot | 8497aa6 | 2016-04-06 11:55:04 -0400 | [diff] [blame] | 736 | static void bcm_sf2_sw_fdb_add(struct dsa_switch *ds, int port, |
| 737 | const struct switchdev_obj_port_fdb *fdb, |
| 738 | struct switchdev_trans *trans) |
Florian Fainelli | 680060d | 2015-10-23 11:38:07 -0700 | [diff] [blame] | 739 | { |
| 740 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 741 | |
Vivien Didelot | 8497aa6 | 2016-04-06 11:55:04 -0400 | [diff] [blame] | 742 | if (bcm_sf2_arl_op(priv, 0, port, fdb->addr, fdb->vid, true)) |
| 743 | pr_err("%s: failed to add MAC address\n", __func__); |
Florian Fainelli | 680060d | 2015-10-23 11:38:07 -0700 | [diff] [blame] | 744 | } |
| 745 | |
| 746 | static int bcm_sf2_sw_fdb_del(struct dsa_switch *ds, int port, |
| 747 | const struct switchdev_obj_port_fdb *fdb) |
| 748 | { |
| 749 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 750 | |
| 751 | return bcm_sf2_arl_op(priv, 0, port, fdb->addr, fdb->vid, false); |
| 752 | } |
| 753 | |
| 754 | static int bcm_sf2_arl_search_wait(struct bcm_sf2_priv *priv) |
| 755 | { |
| 756 | unsigned timeout = 1000; |
| 757 | u32 reg; |
| 758 | |
| 759 | do { |
| 760 | reg = core_readl(priv, CORE_ARLA_SRCH_CTL); |
| 761 | if (!(reg & ARLA_SRCH_STDN)) |
| 762 | return 0; |
| 763 | |
| 764 | if (reg & ARLA_SRCH_VLID) |
| 765 | return 0; |
| 766 | |
| 767 | usleep_range(1000, 2000); |
| 768 | } while (timeout--); |
| 769 | |
| 770 | return -ETIMEDOUT; |
| 771 | } |
| 772 | |
| 773 | static void bcm_sf2_arl_search_rd(struct bcm_sf2_priv *priv, u8 idx, |
| 774 | struct bcm_sf2_arl_entry *ent) |
| 775 | { |
| 776 | u64 mac_vid; |
| 777 | u32 fwd_entry; |
| 778 | |
| 779 | mac_vid = core_readq(priv, CORE_ARLA_SRCH_RSLT_MACVID(idx)); |
| 780 | fwd_entry = core_readl(priv, CORE_ARLA_SRCH_RSLT(idx)); |
| 781 | bcm_sf2_arl_to_entry(ent, mac_vid, fwd_entry); |
| 782 | } |
| 783 | |
| 784 | static int bcm_sf2_sw_fdb_copy(struct net_device *dev, int port, |
| 785 | const struct bcm_sf2_arl_entry *ent, |
| 786 | struct switchdev_obj_port_fdb *fdb, |
| 787 | int (*cb)(struct switchdev_obj *obj)) |
| 788 | { |
| 789 | if (!ent->is_valid) |
| 790 | return 0; |
| 791 | |
| 792 | if (port != ent->port) |
| 793 | return 0; |
| 794 | |
| 795 | ether_addr_copy(fdb->addr, ent->mac); |
| 796 | fdb->vid = ent->vid; |
| 797 | fdb->ndm_state = ent->is_static ? NUD_NOARP : NUD_REACHABLE; |
| 798 | |
| 799 | return cb(&fdb->obj); |
| 800 | } |
| 801 | |
| 802 | static int bcm_sf2_sw_fdb_dump(struct dsa_switch *ds, int port, |
| 803 | struct switchdev_obj_port_fdb *fdb, |
| 804 | int (*cb)(struct switchdev_obj *obj)) |
| 805 | { |
| 806 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
Andrew Lunn | c8b0980 | 2016-06-04 21:16:57 +0200 | [diff] [blame^] | 807 | struct net_device *dev = ds->ports[port].netdev; |
Florian Fainelli | 680060d | 2015-10-23 11:38:07 -0700 | [diff] [blame] | 808 | struct bcm_sf2_arl_entry results[2]; |
| 809 | unsigned int count = 0; |
| 810 | int ret; |
| 811 | |
| 812 | /* Start search operation */ |
| 813 | core_writel(priv, ARLA_SRCH_STDN, CORE_ARLA_SRCH_CTL); |
| 814 | |
| 815 | do { |
| 816 | ret = bcm_sf2_arl_search_wait(priv); |
| 817 | if (ret) |
| 818 | return ret; |
| 819 | |
| 820 | /* Read both entries, then return their values back */ |
| 821 | bcm_sf2_arl_search_rd(priv, 0, &results[0]); |
| 822 | ret = bcm_sf2_sw_fdb_copy(dev, port, &results[0], fdb, cb); |
| 823 | if (ret) |
| 824 | return ret; |
| 825 | |
| 826 | bcm_sf2_arl_search_rd(priv, 1, &results[1]); |
| 827 | ret = bcm_sf2_sw_fdb_copy(dev, port, &results[1], fdb, cb); |
| 828 | if (ret) |
| 829 | return ret; |
| 830 | |
| 831 | if (!results[0].is_valid && !results[1].is_valid) |
| 832 | break; |
| 833 | |
| 834 | } while (count++ < CORE_ARLA_NUM_ENTRIES); |
| 835 | |
| 836 | return 0; |
| 837 | } |
| 838 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 839 | static irqreturn_t bcm_sf2_switch_0_isr(int irq, void *dev_id) |
| 840 | { |
| 841 | struct bcm_sf2_priv *priv = dev_id; |
| 842 | |
| 843 | priv->irq0_stat = intrl2_0_readl(priv, INTRL2_CPU_STATUS) & |
| 844 | ~priv->irq0_mask; |
| 845 | intrl2_0_writel(priv, priv->irq0_stat, INTRL2_CPU_CLEAR); |
| 846 | |
| 847 | return IRQ_HANDLED; |
| 848 | } |
| 849 | |
| 850 | static irqreturn_t bcm_sf2_switch_1_isr(int irq, void *dev_id) |
| 851 | { |
| 852 | struct bcm_sf2_priv *priv = dev_id; |
| 853 | |
| 854 | priv->irq1_stat = intrl2_1_readl(priv, INTRL2_CPU_STATUS) & |
| 855 | ~priv->irq1_mask; |
| 856 | intrl2_1_writel(priv, priv->irq1_stat, INTRL2_CPU_CLEAR); |
| 857 | |
| 858 | if (priv->irq1_stat & P_LINK_UP_IRQ(P7_IRQ_OFF)) |
| 859 | priv->port_sts[7].link = 1; |
| 860 | if (priv->irq1_stat & P_LINK_DOWN_IRQ(P7_IRQ_OFF)) |
| 861 | priv->port_sts[7].link = 0; |
| 862 | |
| 863 | return IRQ_HANDLED; |
| 864 | } |
| 865 | |
Florian Fainelli | 33f8461 | 2014-11-25 18:08:49 -0800 | [diff] [blame] | 866 | static int bcm_sf2_sw_rst(struct bcm_sf2_priv *priv) |
| 867 | { |
| 868 | unsigned int timeout = 1000; |
| 869 | u32 reg; |
| 870 | |
| 871 | reg = core_readl(priv, CORE_WATCHDOG_CTRL); |
| 872 | reg |= SOFTWARE_RESET | EN_CHIP_RST | EN_SW_RESET; |
| 873 | core_writel(priv, reg, CORE_WATCHDOG_CTRL); |
| 874 | |
| 875 | do { |
| 876 | reg = core_readl(priv, CORE_WATCHDOG_CTRL); |
| 877 | if (!(reg & SOFTWARE_RESET)) |
| 878 | break; |
| 879 | |
| 880 | usleep_range(1000, 2000); |
| 881 | } while (timeout-- > 0); |
| 882 | |
| 883 | if (timeout == 0) |
| 884 | return -ETIMEDOUT; |
| 885 | |
| 886 | return 0; |
| 887 | } |
| 888 | |
Florian Fainelli | 691c9a8 | 2015-01-20 16:42:00 -0800 | [diff] [blame] | 889 | static void bcm_sf2_intr_disable(struct bcm_sf2_priv *priv) |
| 890 | { |
| 891 | intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_MASK_SET); |
| 892 | intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR); |
| 893 | intrl2_0_writel(priv, 0, INTRL2_CPU_MASK_CLEAR); |
| 894 | intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_MASK_SET); |
| 895 | intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR); |
| 896 | intrl2_1_writel(priv, 0, INTRL2_CPU_MASK_CLEAR); |
| 897 | } |
| 898 | |
Florian Fainelli | 8b7c94e | 2015-10-23 12:11:08 -0700 | [diff] [blame] | 899 | static void bcm_sf2_identify_ports(struct bcm_sf2_priv *priv, |
| 900 | struct device_node *dn) |
| 901 | { |
| 902 | struct device_node *port; |
| 903 | const char *phy_mode_str; |
| 904 | int mode; |
| 905 | unsigned int port_num; |
| 906 | int ret; |
| 907 | |
| 908 | priv->moca_port = -1; |
| 909 | |
| 910 | for_each_available_child_of_node(dn, port) { |
| 911 | if (of_property_read_u32(port, "reg", &port_num)) |
| 912 | continue; |
| 913 | |
| 914 | /* Internal PHYs get assigned a specific 'phy-mode' property |
| 915 | * value: "internal" to help flag them before MDIO probing |
| 916 | * has completed, since they might be turned off at that |
| 917 | * time |
| 918 | */ |
| 919 | mode = of_get_phy_mode(port); |
| 920 | if (mode < 0) { |
| 921 | ret = of_property_read_string(port, "phy-mode", |
| 922 | &phy_mode_str); |
| 923 | if (ret < 0) |
| 924 | continue; |
| 925 | |
| 926 | if (!strcasecmp(phy_mode_str, "internal")) |
| 927 | priv->int_phy_mask |= 1 << port_num; |
| 928 | } |
| 929 | |
| 930 | if (mode == PHY_INTERFACE_MODE_MOCA) |
| 931 | priv->moca_port = port_num; |
| 932 | } |
| 933 | } |
| 934 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 935 | static int bcm_sf2_sw_setup(struct dsa_switch *ds) |
| 936 | { |
| 937 | const char *reg_names[BCM_SF2_REGS_NUM] = BCM_SF2_REGS_NAME; |
| 938 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 939 | struct device_node *dn; |
| 940 | void __iomem **base; |
| 941 | unsigned int port; |
| 942 | unsigned int i; |
| 943 | u32 reg, rev; |
| 944 | int ret; |
| 945 | |
| 946 | spin_lock_init(&priv->indir_lock); |
| 947 | mutex_init(&priv->stats_mutex); |
| 948 | |
| 949 | /* All the interesting properties are at the parent device_node |
| 950 | * level |
| 951 | */ |
Andrew Lunn | ff04955 | 2016-05-10 23:27:24 +0200 | [diff] [blame] | 952 | dn = ds->cd->of_node->parent; |
| 953 | bcm_sf2_identify_ports(priv, ds->cd->of_node); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 954 | |
| 955 | priv->irq0 = irq_of_parse_and_map(dn, 0); |
| 956 | priv->irq1 = irq_of_parse_and_map(dn, 1); |
| 957 | |
| 958 | base = &priv->core; |
| 959 | for (i = 0; i < BCM_SF2_REGS_NUM; i++) { |
| 960 | *base = of_iomap(dn, i); |
| 961 | if (*base == NULL) { |
| 962 | pr_err("unable to find register: %s\n", reg_names[i]); |
Florian Fainelli | a566059 | 2014-11-25 18:08:48 -0800 | [diff] [blame] | 963 | ret = -ENOMEM; |
| 964 | goto out_unmap; |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 965 | } |
| 966 | base++; |
| 967 | } |
| 968 | |
Florian Fainelli | 33f8461 | 2014-11-25 18:08:49 -0800 | [diff] [blame] | 969 | ret = bcm_sf2_sw_rst(priv); |
| 970 | if (ret) { |
| 971 | pr_err("unable to software reset switch: %d\n", ret); |
| 972 | goto out_unmap; |
| 973 | } |
| 974 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 975 | /* Disable all interrupts and request them */ |
Florian Fainelli | 691c9a8 | 2015-01-20 16:42:00 -0800 | [diff] [blame] | 976 | bcm_sf2_intr_disable(priv); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 977 | |
| 978 | ret = request_irq(priv->irq0, bcm_sf2_switch_0_isr, 0, |
| 979 | "switch_0", priv); |
| 980 | if (ret < 0) { |
| 981 | pr_err("failed to request switch_0 IRQ\n"); |
| 982 | goto out_unmap; |
| 983 | } |
| 984 | |
| 985 | ret = request_irq(priv->irq1, bcm_sf2_switch_1_isr, 0, |
| 986 | "switch_1", priv); |
| 987 | if (ret < 0) { |
| 988 | pr_err("failed to request switch_1 IRQ\n"); |
| 989 | goto out_free_irq0; |
| 990 | } |
| 991 | |
| 992 | /* Reset the MIB counters */ |
| 993 | reg = core_readl(priv, CORE_GMNCFGCFG); |
| 994 | reg |= RST_MIB_CNT; |
| 995 | core_writel(priv, reg, CORE_GMNCFGCFG); |
| 996 | reg &= ~RST_MIB_CNT; |
| 997 | core_writel(priv, reg, CORE_GMNCFGCFG); |
| 998 | |
| 999 | /* Get the maximum number of ports for this switch */ |
| 1000 | priv->hw_params.num_ports = core_readl(priv, CORE_IMP0_PRT_ID) + 1; |
| 1001 | if (priv->hw_params.num_ports > DSA_MAX_PORTS) |
| 1002 | priv->hw_params.num_ports = DSA_MAX_PORTS; |
| 1003 | |
| 1004 | /* Assume a single GPHY setup if we can't read that property */ |
| 1005 | if (of_property_read_u32(dn, "brcm,num-gphy", |
| 1006 | &priv->hw_params.num_gphy)) |
| 1007 | priv->hw_params.num_gphy = 1; |
| 1008 | |
| 1009 | /* Enable all valid ports and disable those unused */ |
| 1010 | for (port = 0; port < priv->hw_params.num_ports; port++) { |
| 1011 | /* IMP port receives special treatment */ |
Andrew Lunn | 74c3e2a | 2016-04-13 02:40:44 +0200 | [diff] [blame] | 1012 | if ((1 << port) & ds->enabled_port_mask) |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 1013 | bcm_sf2_port_setup(ds, port, NULL); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1014 | else if (dsa_is_cpu_port(ds, port)) |
| 1015 | bcm_sf2_imp_setup(ds, port); |
| 1016 | else |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 1017 | bcm_sf2_port_disable(ds, port, NULL); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1018 | } |
| 1019 | |
| 1020 | /* Include the pseudo-PHY address and the broadcast PHY address to |
Florian Fainelli | b8c6cd1 | 2015-07-15 16:09:32 -0700 | [diff] [blame] | 1021 | * divert reads towards our workaround. This is only required for |
| 1022 | * 7445D0, since 7445E0 disconnects the internal switch pseudo-PHY such |
| 1023 | * that we can use the regular SWITCH_MDIO master controller instead. |
| 1024 | * |
Andrew Lunn | 74c3e2a | 2016-04-13 02:40:44 +0200 | [diff] [blame] | 1025 | * By default, DSA initializes ds->phys_mii_mask to |
| 1026 | * ds->enabled_port_mask to have a 1:1 mapping between Port address |
| 1027 | * and PHY address in order to utilize the slave_mii_bus instance to |
| 1028 | * read from Port PHYs. This is not what we want here, so we |
| 1029 | * initialize phys_mii_mask 0 to always utilize the "master" MDIO |
| 1030 | * bus backed by the "mdio-unimac" driver. |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1031 | */ |
Florian Fainelli | b8c6cd1 | 2015-07-15 16:09:32 -0700 | [diff] [blame] | 1032 | if (of_machine_is_compatible("brcm,bcm7445d0")) |
| 1033 | ds->phys_mii_mask |= ((1 << BRCM_PSEUDO_PHY_ADDR) | (1 << 0)); |
| 1034 | else |
| 1035 | ds->phys_mii_mask = 0; |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1036 | |
| 1037 | rev = reg_readl(priv, REG_SWITCH_REVISION); |
| 1038 | priv->hw_params.top_rev = (rev >> SWITCH_TOP_REV_SHIFT) & |
| 1039 | SWITCH_TOP_REV_MASK; |
| 1040 | priv->hw_params.core_rev = (rev & SF2_REV_MASK); |
| 1041 | |
Florian Fainelli | aa9aef7 | 2014-09-19 13:07:55 -0700 | [diff] [blame] | 1042 | rev = reg_readl(priv, REG_PHY_REVISION); |
| 1043 | priv->hw_params.gphy_rev = rev & PHY_REVISION_MASK; |
| 1044 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1045 | pr_info("Starfighter 2 top: %x.%02x, core: %x.%02x base: 0x%p, IRQs: %d, %d\n", |
| 1046 | priv->hw_params.top_rev >> 8, priv->hw_params.top_rev & 0xff, |
| 1047 | priv->hw_params.core_rev >> 8, priv->hw_params.core_rev & 0xff, |
| 1048 | priv->core, priv->irq0, priv->irq1); |
| 1049 | |
| 1050 | return 0; |
| 1051 | |
| 1052 | out_free_irq0: |
| 1053 | free_irq(priv->irq0, priv); |
| 1054 | out_unmap: |
| 1055 | base = &priv->core; |
| 1056 | for (i = 0; i < BCM_SF2_REGS_NUM; i++) { |
Florian Fainelli | a566059 | 2014-11-25 18:08:48 -0800 | [diff] [blame] | 1057 | if (*base) |
| 1058 | iounmap(*base); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1059 | base++; |
| 1060 | } |
| 1061 | return ret; |
| 1062 | } |
| 1063 | |
| 1064 | static int bcm_sf2_sw_set_addr(struct dsa_switch *ds, u8 *addr) |
| 1065 | { |
| 1066 | return 0; |
| 1067 | } |
| 1068 | |
Florian Fainelli | aa9aef7 | 2014-09-19 13:07:55 -0700 | [diff] [blame] | 1069 | static u32 bcm_sf2_sw_get_phy_flags(struct dsa_switch *ds, int port) |
| 1070 | { |
| 1071 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 1072 | |
| 1073 | /* The BCM7xxx PHY driver expects to find the integrated PHY revision |
| 1074 | * in bits 15:8 and the patch level in bits 7:0 which is exactly what |
| 1075 | * the REG_PHY_REVISION register layout is. |
| 1076 | */ |
| 1077 | |
| 1078 | return priv->hw_params.gphy_rev; |
| 1079 | } |
| 1080 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1081 | static int bcm_sf2_sw_indir_rw(struct dsa_switch *ds, int op, int addr, |
| 1082 | int regnum, u16 val) |
| 1083 | { |
| 1084 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 1085 | int ret = 0; |
| 1086 | u32 reg; |
| 1087 | |
| 1088 | reg = reg_readl(priv, REG_SWITCH_CNTRL); |
| 1089 | reg |= MDIO_MASTER_SEL; |
| 1090 | reg_writel(priv, reg, REG_SWITCH_CNTRL); |
| 1091 | |
| 1092 | /* Page << 8 | offset */ |
| 1093 | reg = 0x70; |
| 1094 | reg <<= 2; |
| 1095 | core_writel(priv, addr, reg); |
| 1096 | |
| 1097 | /* Page << 8 | offset */ |
| 1098 | reg = 0x80 << 8 | regnum << 1; |
| 1099 | reg <<= 2; |
| 1100 | |
| 1101 | if (op) |
| 1102 | ret = core_readl(priv, reg); |
| 1103 | else |
| 1104 | core_writel(priv, val, reg); |
| 1105 | |
| 1106 | reg = reg_readl(priv, REG_SWITCH_CNTRL); |
| 1107 | reg &= ~MDIO_MASTER_SEL; |
| 1108 | reg_writel(priv, reg, REG_SWITCH_CNTRL); |
| 1109 | |
| 1110 | return ret & 0xffff; |
| 1111 | } |
| 1112 | |
| 1113 | static int bcm_sf2_sw_phy_read(struct dsa_switch *ds, int addr, int regnum) |
| 1114 | { |
| 1115 | /* Intercept reads from the MDIO broadcast address or Broadcom |
| 1116 | * pseudo-PHY address |
| 1117 | */ |
| 1118 | switch (addr) { |
| 1119 | case 0: |
Florian Fainelli | aafc66f | 2015-06-10 18:08:01 -0700 | [diff] [blame] | 1120 | case BRCM_PSEUDO_PHY_ADDR: |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1121 | return bcm_sf2_sw_indir_rw(ds, 1, addr, regnum, 0); |
| 1122 | default: |
| 1123 | return 0xffff; |
| 1124 | } |
| 1125 | } |
| 1126 | |
| 1127 | static int bcm_sf2_sw_phy_write(struct dsa_switch *ds, int addr, int regnum, |
| 1128 | u16 val) |
| 1129 | { |
| 1130 | /* Intercept writes to the MDIO broadcast address or Broadcom |
| 1131 | * pseudo-PHY address |
| 1132 | */ |
| 1133 | switch (addr) { |
| 1134 | case 0: |
Florian Fainelli | aafc66f | 2015-06-10 18:08:01 -0700 | [diff] [blame] | 1135 | case BRCM_PSEUDO_PHY_ADDR: |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1136 | bcm_sf2_sw_indir_rw(ds, 0, addr, regnum, val); |
| 1137 | break; |
| 1138 | } |
| 1139 | |
| 1140 | return 0; |
| 1141 | } |
| 1142 | |
| 1143 | static void bcm_sf2_sw_adjust_link(struct dsa_switch *ds, int port, |
| 1144 | struct phy_device *phydev) |
| 1145 | { |
| 1146 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 1147 | u32 id_mode_dis = 0, port_mode; |
| 1148 | const char *str = NULL; |
| 1149 | u32 reg; |
| 1150 | |
| 1151 | switch (phydev->interface) { |
| 1152 | case PHY_INTERFACE_MODE_RGMII: |
| 1153 | str = "RGMII (no delay)"; |
| 1154 | id_mode_dis = 1; |
| 1155 | case PHY_INTERFACE_MODE_RGMII_TXID: |
| 1156 | if (!str) |
| 1157 | str = "RGMII (TX delay)"; |
| 1158 | port_mode = EXT_GPHY; |
| 1159 | break; |
| 1160 | case PHY_INTERFACE_MODE_MII: |
| 1161 | str = "MII"; |
| 1162 | port_mode = EXT_EPHY; |
| 1163 | break; |
| 1164 | case PHY_INTERFACE_MODE_REVMII: |
| 1165 | str = "Reverse MII"; |
| 1166 | port_mode = EXT_REVMII; |
| 1167 | break; |
| 1168 | default: |
Florian Fainelli | 7de1557 | 2014-09-24 17:05:19 -0700 | [diff] [blame] | 1169 | /* All other PHYs: internal and MoCA */ |
| 1170 | goto force_link; |
| 1171 | } |
| 1172 | |
| 1173 | /* If the link is down, just disable the interface to conserve power */ |
| 1174 | if (!phydev->link) { |
| 1175 | reg = reg_readl(priv, REG_RGMII_CNTRL_P(port)); |
| 1176 | reg &= ~RGMII_MODE_EN; |
| 1177 | reg_writel(priv, reg, REG_RGMII_CNTRL_P(port)); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1178 | goto force_link; |
| 1179 | } |
| 1180 | |
| 1181 | /* Clear id_mode_dis bit, and the existing port mode, but |
| 1182 | * make sure we enable the RGMII block for data to pass |
| 1183 | */ |
| 1184 | reg = reg_readl(priv, REG_RGMII_CNTRL_P(port)); |
| 1185 | reg &= ~ID_MODE_DIS; |
| 1186 | reg &= ~(PORT_MODE_MASK << PORT_MODE_SHIFT); |
| 1187 | reg &= ~(RX_PAUSE_EN | TX_PAUSE_EN); |
| 1188 | |
| 1189 | reg |= port_mode | RGMII_MODE_EN; |
| 1190 | if (id_mode_dis) |
| 1191 | reg |= ID_MODE_DIS; |
| 1192 | |
| 1193 | if (phydev->pause) { |
| 1194 | if (phydev->asym_pause) |
| 1195 | reg |= TX_PAUSE_EN; |
| 1196 | reg |= RX_PAUSE_EN; |
| 1197 | } |
| 1198 | |
| 1199 | reg_writel(priv, reg, REG_RGMII_CNTRL_P(port)); |
| 1200 | |
| 1201 | pr_info("Port %d configured for %s\n", port, str); |
| 1202 | |
| 1203 | force_link: |
| 1204 | /* Force link settings detected from the PHY */ |
| 1205 | reg = SW_OVERRIDE; |
| 1206 | switch (phydev->speed) { |
| 1207 | case SPEED_1000: |
| 1208 | reg |= SPDSTS_1000 << SPEED_SHIFT; |
| 1209 | break; |
| 1210 | case SPEED_100: |
| 1211 | reg |= SPDSTS_100 << SPEED_SHIFT; |
| 1212 | break; |
| 1213 | } |
| 1214 | |
| 1215 | if (phydev->link) |
| 1216 | reg |= LINK_STS; |
| 1217 | if (phydev->duplex == DUPLEX_FULL) |
| 1218 | reg |= DUPLX_MODE; |
| 1219 | |
| 1220 | core_writel(priv, reg, CORE_STS_OVERRIDE_GMIIP_PORT(port)); |
| 1221 | } |
| 1222 | |
| 1223 | static void bcm_sf2_sw_fixed_link_update(struct dsa_switch *ds, int port, |
| 1224 | struct fixed_phy_status *status) |
| 1225 | { |
| 1226 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
Florian Fainelli | d2eac98 | 2015-07-20 17:49:55 -0700 | [diff] [blame] | 1227 | u32 duplex, pause; |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1228 | u32 reg; |
| 1229 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1230 | duplex = core_readl(priv, CORE_DUPSTS); |
| 1231 | pause = core_readl(priv, CORE_PAUSESTS); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1232 | |
| 1233 | status->link = 0; |
| 1234 | |
Florian Fainelli | 8b7c94e | 2015-10-23 12:11:08 -0700 | [diff] [blame] | 1235 | /* MoCA port is special as we do not get link status from CORE_LNKSTS, |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1236 | * which means that we need to force the link at the port override |
| 1237 | * level to get the data to flow. We do use what the interrupt handler |
| 1238 | * did determine before. |
Florian Fainelli | 7855f67 | 2014-12-11 18:12:42 -0800 | [diff] [blame] | 1239 | * |
| 1240 | * For the other ports, we just force the link status, since this is |
| 1241 | * a fixed PHY device. |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1242 | */ |
Florian Fainelli | 8b7c94e | 2015-10-23 12:11:08 -0700 | [diff] [blame] | 1243 | if (port == priv->moca_port) { |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1244 | status->link = priv->port_sts[port].link; |
Florian Fainelli | 4ab7f91 | 2015-05-15 12:38:01 -0700 | [diff] [blame] | 1245 | /* For MoCA interfaces, also force a link down notification |
| 1246 | * since some version of the user-space daemon (mocad) use |
| 1247 | * cmd->autoneg to force the link, which messes up the PHY |
| 1248 | * state machine and make it go in PHY_FORCING state instead. |
| 1249 | */ |
| 1250 | if (!status->link) |
Andrew Lunn | c8b0980 | 2016-06-04 21:16:57 +0200 | [diff] [blame^] | 1251 | netif_carrier_off(ds->ports[port].netdev); |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1252 | status->duplex = 1; |
| 1253 | } else { |
Florian Fainelli | 7855f67 | 2014-12-11 18:12:42 -0800 | [diff] [blame] | 1254 | status->link = 1; |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1255 | status->duplex = !!(duplex & (1 << port)); |
| 1256 | } |
| 1257 | |
Florian Fainelli | 7855f67 | 2014-12-11 18:12:42 -0800 | [diff] [blame] | 1258 | reg = core_readl(priv, CORE_STS_OVERRIDE_GMIIP_PORT(port)); |
| 1259 | reg |= SW_OVERRIDE; |
| 1260 | if (status->link) |
| 1261 | reg |= LINK_STS; |
| 1262 | else |
| 1263 | reg &= ~LINK_STS; |
| 1264 | core_writel(priv, reg, CORE_STS_OVERRIDE_GMIIP_PORT(port)); |
| 1265 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1266 | if ((pause & (1 << port)) && |
| 1267 | (pause & (1 << (port + PAUSESTS_TX_PAUSE_SHIFT)))) { |
| 1268 | status->asym_pause = 1; |
| 1269 | status->pause = 1; |
| 1270 | } |
| 1271 | |
| 1272 | if (pause & (1 << port)) |
| 1273 | status->pause = 1; |
| 1274 | } |
| 1275 | |
Florian Fainelli | 8cfa949 | 2014-09-18 17:31:23 -0700 | [diff] [blame] | 1276 | static int bcm_sf2_sw_suspend(struct dsa_switch *ds) |
| 1277 | { |
| 1278 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 1279 | unsigned int port; |
| 1280 | |
Florian Fainelli | 691c9a8 | 2015-01-20 16:42:00 -0800 | [diff] [blame] | 1281 | bcm_sf2_intr_disable(priv); |
Florian Fainelli | 8cfa949 | 2014-09-18 17:31:23 -0700 | [diff] [blame] | 1282 | |
| 1283 | /* Disable all ports physically present including the IMP |
| 1284 | * port, the other ones have already been disabled during |
| 1285 | * bcm_sf2_sw_setup |
| 1286 | */ |
| 1287 | for (port = 0; port < DSA_MAX_PORTS; port++) { |
Andrew Lunn | 74c3e2a | 2016-04-13 02:40:44 +0200 | [diff] [blame] | 1288 | if ((1 << port) & ds->enabled_port_mask || |
Florian Fainelli | 8cfa949 | 2014-09-18 17:31:23 -0700 | [diff] [blame] | 1289 | dsa_is_cpu_port(ds, port)) |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 1290 | bcm_sf2_port_disable(ds, port, NULL); |
Florian Fainelli | 8cfa949 | 2014-09-18 17:31:23 -0700 | [diff] [blame] | 1291 | } |
| 1292 | |
| 1293 | return 0; |
| 1294 | } |
| 1295 | |
Florian Fainelli | 8cfa949 | 2014-09-18 17:31:23 -0700 | [diff] [blame] | 1296 | static int bcm_sf2_sw_resume(struct dsa_switch *ds) |
| 1297 | { |
| 1298 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 1299 | unsigned int port; |
Florian Fainelli | 8cfa949 | 2014-09-18 17:31:23 -0700 | [diff] [blame] | 1300 | int ret; |
| 1301 | |
| 1302 | ret = bcm_sf2_sw_rst(priv); |
| 1303 | if (ret) { |
| 1304 | pr_err("%s: failed to software reset switch\n", __func__); |
| 1305 | return ret; |
| 1306 | } |
| 1307 | |
Florian Fainelli | b083668 | 2015-02-05 11:40:41 -0800 | [diff] [blame] | 1308 | if (priv->hw_params.num_gphy == 1) |
| 1309 | bcm_sf2_gphy_enable_set(ds, true); |
Florian Fainelli | 8cfa949 | 2014-09-18 17:31:23 -0700 | [diff] [blame] | 1310 | |
| 1311 | for (port = 0; port < DSA_MAX_PORTS; port++) { |
Andrew Lunn | 74c3e2a | 2016-04-13 02:40:44 +0200 | [diff] [blame] | 1312 | if ((1 << port) & ds->enabled_port_mask) |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 1313 | bcm_sf2_port_setup(ds, port, NULL); |
Florian Fainelli | 8cfa949 | 2014-09-18 17:31:23 -0700 | [diff] [blame] | 1314 | else if (dsa_is_cpu_port(ds, port)) |
| 1315 | bcm_sf2_imp_setup(ds, port); |
| 1316 | } |
| 1317 | |
| 1318 | return 0; |
| 1319 | } |
| 1320 | |
Florian Fainelli | 96e65d7 | 2014-09-18 17:31:25 -0700 | [diff] [blame] | 1321 | static void bcm_sf2_sw_get_wol(struct dsa_switch *ds, int port, |
| 1322 | struct ethtool_wolinfo *wol) |
| 1323 | { |
| 1324 | struct net_device *p = ds->dst[ds->index].master_netdev; |
| 1325 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 1326 | struct ethtool_wolinfo pwol; |
| 1327 | |
| 1328 | /* Get the parent device WoL settings */ |
| 1329 | p->ethtool_ops->get_wol(p, &pwol); |
| 1330 | |
| 1331 | /* Advertise the parent device supported settings */ |
| 1332 | wol->supported = pwol.supported; |
| 1333 | memset(&wol->sopass, 0, sizeof(wol->sopass)); |
| 1334 | |
| 1335 | if (pwol.wolopts & WAKE_MAGICSECURE) |
| 1336 | memcpy(&wol->sopass, pwol.sopass, sizeof(wol->sopass)); |
| 1337 | |
| 1338 | if (priv->wol_ports_mask & (1 << port)) |
| 1339 | wol->wolopts = pwol.wolopts; |
| 1340 | else |
| 1341 | wol->wolopts = 0; |
| 1342 | } |
| 1343 | |
| 1344 | static int bcm_sf2_sw_set_wol(struct dsa_switch *ds, int port, |
| 1345 | struct ethtool_wolinfo *wol) |
| 1346 | { |
| 1347 | struct net_device *p = ds->dst[ds->index].master_netdev; |
| 1348 | struct bcm_sf2_priv *priv = ds_to_priv(ds); |
| 1349 | s8 cpu_port = ds->dst[ds->index].cpu_port; |
| 1350 | struct ethtool_wolinfo pwol; |
| 1351 | |
| 1352 | p->ethtool_ops->get_wol(p, &pwol); |
| 1353 | if (wol->wolopts & ~pwol.supported) |
| 1354 | return -EINVAL; |
| 1355 | |
| 1356 | if (wol->wolopts) |
| 1357 | priv->wol_ports_mask |= (1 << port); |
| 1358 | else |
| 1359 | priv->wol_ports_mask &= ~(1 << port); |
| 1360 | |
| 1361 | /* If we have at least one port enabled, make sure the CPU port |
| 1362 | * is also enabled. If the CPU port is the last one enabled, we disable |
| 1363 | * it since this configuration does not make sense. |
| 1364 | */ |
| 1365 | if (priv->wol_ports_mask && priv->wol_ports_mask != (1 << cpu_port)) |
| 1366 | priv->wol_ports_mask |= (1 << cpu_port); |
| 1367 | else |
| 1368 | priv->wol_ports_mask &= ~(1 << cpu_port); |
| 1369 | |
| 1370 | return p->ethtool_ops->set_wol(p, wol); |
| 1371 | } |
| 1372 | |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1373 | static struct dsa_switch_driver bcm_sf2_switch_driver = { |
Florian Fainelli | ac7a04c | 2014-09-11 21:18:09 -0700 | [diff] [blame] | 1374 | .tag_protocol = DSA_TAG_PROTO_BRCM, |
Andrew Lunn | e49bad3 | 2016-04-13 02:40:43 +0200 | [diff] [blame] | 1375 | .probe = bcm_sf2_sw_drv_probe, |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1376 | .setup = bcm_sf2_sw_setup, |
| 1377 | .set_addr = bcm_sf2_sw_set_addr, |
Florian Fainelli | aa9aef7 | 2014-09-19 13:07:55 -0700 | [diff] [blame] | 1378 | .get_phy_flags = bcm_sf2_sw_get_phy_flags, |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1379 | .phy_read = bcm_sf2_sw_phy_read, |
| 1380 | .phy_write = bcm_sf2_sw_phy_write, |
| 1381 | .get_strings = bcm_sf2_sw_get_strings, |
| 1382 | .get_ethtool_stats = bcm_sf2_sw_get_ethtool_stats, |
| 1383 | .get_sset_count = bcm_sf2_sw_get_sset_count, |
| 1384 | .adjust_link = bcm_sf2_sw_adjust_link, |
| 1385 | .fixed_link_update = bcm_sf2_sw_fixed_link_update, |
Florian Fainelli | 8cfa949 | 2014-09-18 17:31:23 -0700 | [diff] [blame] | 1386 | .suspend = bcm_sf2_sw_suspend, |
| 1387 | .resume = bcm_sf2_sw_resume, |
Florian Fainelli | 96e65d7 | 2014-09-18 17:31:25 -0700 | [diff] [blame] | 1388 | .get_wol = bcm_sf2_sw_get_wol, |
| 1389 | .set_wol = bcm_sf2_sw_set_wol, |
Florian Fainelli | b6d045d | 2014-09-24 17:05:20 -0700 | [diff] [blame] | 1390 | .port_enable = bcm_sf2_port_setup, |
| 1391 | .port_disable = bcm_sf2_port_disable, |
Florian Fainelli | 450b05c | 2014-09-24 17:05:22 -0700 | [diff] [blame] | 1392 | .get_eee = bcm_sf2_sw_get_eee, |
| 1393 | .set_eee = bcm_sf2_sw_set_eee, |
Vivien Didelot | 71327a4 | 2016-03-13 16:21:32 -0400 | [diff] [blame] | 1394 | .port_bridge_join = bcm_sf2_sw_br_join, |
| 1395 | .port_bridge_leave = bcm_sf2_sw_br_leave, |
Vivien Didelot | 43c44a9 | 2016-04-06 11:55:03 -0400 | [diff] [blame] | 1396 | .port_stp_state_set = bcm_sf2_sw_br_set_stp_state, |
Florian Fainelli | 680060d | 2015-10-23 11:38:07 -0700 | [diff] [blame] | 1397 | .port_fdb_prepare = bcm_sf2_sw_fdb_prepare, |
| 1398 | .port_fdb_add = bcm_sf2_sw_fdb_add, |
| 1399 | .port_fdb_del = bcm_sf2_sw_fdb_del, |
| 1400 | .port_fdb_dump = bcm_sf2_sw_fdb_dump, |
Florian Fainelli | 246d7f7 | 2014-08-27 17:04:56 -0700 | [diff] [blame] | 1401 | }; |
| 1402 | |
| 1403 | static int __init bcm_sf2_init(void) |
| 1404 | { |
| 1405 | register_switch_driver(&bcm_sf2_switch_driver); |
| 1406 | |
| 1407 | return 0; |
| 1408 | } |
| 1409 | module_init(bcm_sf2_init); |
| 1410 | |
| 1411 | static void __exit bcm_sf2_exit(void) |
| 1412 | { |
| 1413 | unregister_switch_driver(&bcm_sf2_switch_driver); |
| 1414 | } |
| 1415 | module_exit(bcm_sf2_exit); |
| 1416 | |
| 1417 | MODULE_AUTHOR("Broadcom Corporation"); |
| 1418 | MODULE_DESCRIPTION("Driver for Broadcom Starfighter 2 ethernet switch chip"); |
| 1419 | MODULE_LICENSE("GPL"); |
| 1420 | MODULE_ALIAS("platform:brcm-sf2"); |