| /* |
| * B53 switch driver main logic |
| * |
| * Copyright (C) 2011-2013 Jonas Gorski <jogo@openwrt.org> |
| * Copyright (C) 2016 Florian Fainelli <f.fainelli@gmail.com> |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include <linux/delay.h> |
| #include <linux/export.h> |
| #include <linux/gpio.h> |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/platform_data/b53.h> |
| #include <linux/phy.h> |
| #include <linux/etherdevice.h> |
| #include <linux/if_bridge.h> |
| #include <net/dsa.h> |
| |
| #include "b53_regs.h" |
| #include "b53_priv.h" |
| |
| struct b53_mib_desc { |
| u8 size; |
| u8 offset; |
| const char *name; |
| }; |
| |
| /* BCM5365 MIB counters */ |
| static const struct b53_mib_desc b53_mibs_65[] = { |
| { 8, 0x00, "TxOctets" }, |
| { 4, 0x08, "TxDropPkts" }, |
| { 4, 0x10, "TxBroadcastPkts" }, |
| { 4, 0x14, "TxMulticastPkts" }, |
| { 4, 0x18, "TxUnicastPkts" }, |
| { 4, 0x1c, "TxCollisions" }, |
| { 4, 0x20, "TxSingleCollision" }, |
| { 4, 0x24, "TxMultipleCollision" }, |
| { 4, 0x28, "TxDeferredTransmit" }, |
| { 4, 0x2c, "TxLateCollision" }, |
| { 4, 0x30, "TxExcessiveCollision" }, |
| { 4, 0x38, "TxPausePkts" }, |
| { 8, 0x44, "RxOctets" }, |
| { 4, 0x4c, "RxUndersizePkts" }, |
| { 4, 0x50, "RxPausePkts" }, |
| { 4, 0x54, "Pkts64Octets" }, |
| { 4, 0x58, "Pkts65to127Octets" }, |
| { 4, 0x5c, "Pkts128to255Octets" }, |
| { 4, 0x60, "Pkts256to511Octets" }, |
| { 4, 0x64, "Pkts512to1023Octets" }, |
| { 4, 0x68, "Pkts1024to1522Octets" }, |
| { 4, 0x6c, "RxOversizePkts" }, |
| { 4, 0x70, "RxJabbers" }, |
| { 4, 0x74, "RxAlignmentErrors" }, |
| { 4, 0x78, "RxFCSErrors" }, |
| { 8, 0x7c, "RxGoodOctets" }, |
| { 4, 0x84, "RxDropPkts" }, |
| { 4, 0x88, "RxUnicastPkts" }, |
| { 4, 0x8c, "RxMulticastPkts" }, |
| { 4, 0x90, "RxBroadcastPkts" }, |
| { 4, 0x94, "RxSAChanges" }, |
| { 4, 0x98, "RxFragments" }, |
| }; |
| |
| #define B53_MIBS_65_SIZE ARRAY_SIZE(b53_mibs_65) |
| |
| /* BCM63xx MIB counters */ |
| static const struct b53_mib_desc b53_mibs_63xx[] = { |
| { 8, 0x00, "TxOctets" }, |
| { 4, 0x08, "TxDropPkts" }, |
| { 4, 0x0c, "TxQoSPkts" }, |
| { 4, 0x10, "TxBroadcastPkts" }, |
| { 4, 0x14, "TxMulticastPkts" }, |
| { 4, 0x18, "TxUnicastPkts" }, |
| { 4, 0x1c, "TxCollisions" }, |
| { 4, 0x20, "TxSingleCollision" }, |
| { 4, 0x24, "TxMultipleCollision" }, |
| { 4, 0x28, "TxDeferredTransmit" }, |
| { 4, 0x2c, "TxLateCollision" }, |
| { 4, 0x30, "TxExcessiveCollision" }, |
| { 4, 0x38, "TxPausePkts" }, |
| { 8, 0x3c, "TxQoSOctets" }, |
| { 8, 0x44, "RxOctets" }, |
| { 4, 0x4c, "RxUndersizePkts" }, |
| { 4, 0x50, "RxPausePkts" }, |
| { 4, 0x54, "Pkts64Octets" }, |
| { 4, 0x58, "Pkts65to127Octets" }, |
| { 4, 0x5c, "Pkts128to255Octets" }, |
| { 4, 0x60, "Pkts256to511Octets" }, |
| { 4, 0x64, "Pkts512to1023Octets" }, |
| { 4, 0x68, "Pkts1024to1522Octets" }, |
| { 4, 0x6c, "RxOversizePkts" }, |
| { 4, 0x70, "RxJabbers" }, |
| { 4, 0x74, "RxAlignmentErrors" }, |
| { 4, 0x78, "RxFCSErrors" }, |
| { 8, 0x7c, "RxGoodOctets" }, |
| { 4, 0x84, "RxDropPkts" }, |
| { 4, 0x88, "RxUnicastPkts" }, |
| { 4, 0x8c, "RxMulticastPkts" }, |
| { 4, 0x90, "RxBroadcastPkts" }, |
| { 4, 0x94, "RxSAChanges" }, |
| { 4, 0x98, "RxFragments" }, |
| { 4, 0xa0, "RxSymbolErrors" }, |
| { 4, 0xa4, "RxQoSPkts" }, |
| { 8, 0xa8, "RxQoSOctets" }, |
| { 4, 0xb0, "Pkts1523to2047Octets" }, |
| { 4, 0xb4, "Pkts2048to4095Octets" }, |
| { 4, 0xb8, "Pkts4096to8191Octets" }, |
| { 4, 0xbc, "Pkts8192to9728Octets" }, |
| { 4, 0xc0, "RxDiscarded" }, |
| }; |
| |
| #define B53_MIBS_63XX_SIZE ARRAY_SIZE(b53_mibs_63xx) |
| |
| /* MIB counters */ |
| static const struct b53_mib_desc b53_mibs[] = { |
| { 8, 0x00, "TxOctets" }, |
| { 4, 0x08, "TxDropPkts" }, |
| { 4, 0x10, "TxBroadcastPkts" }, |
| { 4, 0x14, "TxMulticastPkts" }, |
| { 4, 0x18, "TxUnicastPkts" }, |
| { 4, 0x1c, "TxCollisions" }, |
| { 4, 0x20, "TxSingleCollision" }, |
| { 4, 0x24, "TxMultipleCollision" }, |
| { 4, 0x28, "TxDeferredTransmit" }, |
| { 4, 0x2c, "TxLateCollision" }, |
| { 4, 0x30, "TxExcessiveCollision" }, |
| { 4, 0x38, "TxPausePkts" }, |
| { 8, 0x50, "RxOctets" }, |
| { 4, 0x58, "RxUndersizePkts" }, |
| { 4, 0x5c, "RxPausePkts" }, |
| { 4, 0x60, "Pkts64Octets" }, |
| { 4, 0x64, "Pkts65to127Octets" }, |
| { 4, 0x68, "Pkts128to255Octets" }, |
| { 4, 0x6c, "Pkts256to511Octets" }, |
| { 4, 0x70, "Pkts512to1023Octets" }, |
| { 4, 0x74, "Pkts1024to1522Octets" }, |
| { 4, 0x78, "RxOversizePkts" }, |
| { 4, 0x7c, "RxJabbers" }, |
| { 4, 0x80, "RxAlignmentErrors" }, |
| { 4, 0x84, "RxFCSErrors" }, |
| { 8, 0x88, "RxGoodOctets" }, |
| { 4, 0x90, "RxDropPkts" }, |
| { 4, 0x94, "RxUnicastPkts" }, |
| { 4, 0x98, "RxMulticastPkts" }, |
| { 4, 0x9c, "RxBroadcastPkts" }, |
| { 4, 0xa0, "RxSAChanges" }, |
| { 4, 0xa4, "RxFragments" }, |
| { 4, 0xa8, "RxJumboPkts" }, |
| { 4, 0xac, "RxSymbolErrors" }, |
| { 4, 0xc0, "RxDiscarded" }, |
| }; |
| |
| #define B53_MIBS_SIZE ARRAY_SIZE(b53_mibs) |
| |
| static const struct b53_mib_desc b53_mibs_58xx[] = { |
| { 8, 0x00, "TxOctets" }, |
| { 4, 0x08, "TxDropPkts" }, |
| { 4, 0x0c, "TxQPKTQ0" }, |
| { 4, 0x10, "TxBroadcastPkts" }, |
| { 4, 0x14, "TxMulticastPkts" }, |
| { 4, 0x18, "TxUnicastPKts" }, |
| { 4, 0x1c, "TxCollisions" }, |
| { 4, 0x20, "TxSingleCollision" }, |
| { 4, 0x24, "TxMultipleCollision" }, |
| { 4, 0x28, "TxDeferredCollision" }, |
| { 4, 0x2c, "TxLateCollision" }, |
| { 4, 0x30, "TxExcessiveCollision" }, |
| { 4, 0x34, "TxFrameInDisc" }, |
| { 4, 0x38, "TxPausePkts" }, |
| { 4, 0x3c, "TxQPKTQ1" }, |
| { 4, 0x40, "TxQPKTQ2" }, |
| { 4, 0x44, "TxQPKTQ3" }, |
| { 4, 0x48, "TxQPKTQ4" }, |
| { 4, 0x4c, "TxQPKTQ5" }, |
| { 8, 0x50, "RxOctets" }, |
| { 4, 0x58, "RxUndersizePkts" }, |
| { 4, 0x5c, "RxPausePkts" }, |
| { 4, 0x60, "RxPkts64Octets" }, |
| { 4, 0x64, "RxPkts65to127Octets" }, |
| { 4, 0x68, "RxPkts128to255Octets" }, |
| { 4, 0x6c, "RxPkts256to511Octets" }, |
| { 4, 0x70, "RxPkts512to1023Octets" }, |
| { 4, 0x74, "RxPkts1024toMaxPktsOctets" }, |
| { 4, 0x78, "RxOversizePkts" }, |
| { 4, 0x7c, "RxJabbers" }, |
| { 4, 0x80, "RxAlignmentErrors" }, |
| { 4, 0x84, "RxFCSErrors" }, |
| { 8, 0x88, "RxGoodOctets" }, |
| { 4, 0x90, "RxDropPkts" }, |
| { 4, 0x94, "RxUnicastPkts" }, |
| { 4, 0x98, "RxMulticastPkts" }, |
| { 4, 0x9c, "RxBroadcastPkts" }, |
| { 4, 0xa0, "RxSAChanges" }, |
| { 4, 0xa4, "RxFragments" }, |
| { 4, 0xa8, "RxJumboPkt" }, |
| { 4, 0xac, "RxSymblErr" }, |
| { 4, 0xb0, "InRangeErrCount" }, |
| { 4, 0xb4, "OutRangeErrCount" }, |
| { 4, 0xb8, "EEELpiEvent" }, |
| { 4, 0xbc, "EEELpiDuration" }, |
| { 4, 0xc0, "RxDiscard" }, |
| { 4, 0xc8, "TxQPKTQ6" }, |
| { 4, 0xcc, "TxQPKTQ7" }, |
| { 4, 0xd0, "TxPkts64Octets" }, |
| { 4, 0xd4, "TxPkts65to127Octets" }, |
| { 4, 0xd8, "TxPkts128to255Octets" }, |
| { 4, 0xdc, "TxPkts256to511Ocets" }, |
| { 4, 0xe0, "TxPkts512to1023Ocets" }, |
| { 4, 0xe4, "TxPkts1024toMaxPktOcets" }, |
| }; |
| |
| #define B53_MIBS_58XX_SIZE ARRAY_SIZE(b53_mibs_58xx) |
| |
| static int b53_do_vlan_op(struct b53_device *dev, u8 op) |
| { |
| unsigned int i; |
| |
| b53_write8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], VTA_START_CMD | op); |
| |
| for (i = 0; i < 10; i++) { |
| u8 vta; |
| |
| b53_read8(dev, B53_ARLIO_PAGE, dev->vta_regs[0], &vta); |
| if (!(vta & VTA_START_CMD)) |
| return 0; |
| |
| usleep_range(100, 200); |
| } |
| |
| return -EIO; |
| } |
| |
| static void b53_set_vlan_entry(struct b53_device *dev, u16 vid, |
| struct b53_vlan *vlan) |
| { |
| if (is5325(dev)) { |
| u32 entry = 0; |
| |
| if (vlan->members) { |
| entry = ((vlan->untag & VA_UNTAG_MASK_25) << |
| VA_UNTAG_S_25) | vlan->members; |
| if (dev->core_rev >= 3) |
| entry |= VA_VALID_25_R4 | vid << VA_VID_HIGH_S; |
| else |
| entry |= VA_VALID_25; |
| } |
| |
| b53_write32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, entry); |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid | |
| VTA_RW_STATE_WR | VTA_RW_OP_EN); |
| } else if (is5365(dev)) { |
| u16 entry = 0; |
| |
| if (vlan->members) |
| entry = ((vlan->untag & VA_UNTAG_MASK_65) << |
| VA_UNTAG_S_65) | vlan->members | VA_VALID_65; |
| |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, entry); |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid | |
| VTA_RW_STATE_WR | VTA_RW_OP_EN); |
| } else { |
| b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid); |
| b53_write32(dev, B53_ARLIO_PAGE, dev->vta_regs[2], |
| (vlan->untag << VTE_UNTAG_S) | vlan->members); |
| |
| b53_do_vlan_op(dev, VTA_CMD_WRITE); |
| } |
| |
| dev_dbg(dev->ds->dev, "VID: %d, members: 0x%04x, untag: 0x%04x\n", |
| vid, vlan->members, vlan->untag); |
| } |
| |
| static void b53_get_vlan_entry(struct b53_device *dev, u16 vid, |
| struct b53_vlan *vlan) |
| { |
| if (is5325(dev)) { |
| u32 entry = 0; |
| |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, vid | |
| VTA_RW_STATE_RD | VTA_RW_OP_EN); |
| b53_read32(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_25, &entry); |
| |
| if (dev->core_rev >= 3) |
| vlan->valid = !!(entry & VA_VALID_25_R4); |
| else |
| vlan->valid = !!(entry & VA_VALID_25); |
| vlan->members = entry & VA_MEMBER_MASK; |
| vlan->untag = (entry >> VA_UNTAG_S_25) & VA_UNTAG_MASK_25; |
| |
| } else if (is5365(dev)) { |
| u16 entry = 0; |
| |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_65, vid | |
| VTA_RW_STATE_WR | VTA_RW_OP_EN); |
| b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_WRITE_65, &entry); |
| |
| vlan->valid = !!(entry & VA_VALID_65); |
| vlan->members = entry & VA_MEMBER_MASK; |
| vlan->untag = (entry >> VA_UNTAG_S_65) & VA_UNTAG_MASK_65; |
| } else { |
| u32 entry = 0; |
| |
| b53_write16(dev, B53_ARLIO_PAGE, dev->vta_regs[1], vid); |
| b53_do_vlan_op(dev, VTA_CMD_READ); |
| b53_read32(dev, B53_ARLIO_PAGE, dev->vta_regs[2], &entry); |
| vlan->members = entry & VTE_MEMBERS; |
| vlan->untag = (entry >> VTE_UNTAG_S) & VTE_MEMBERS; |
| vlan->valid = true; |
| } |
| } |
| |
| static void b53_set_forwarding(struct b53_device *dev, int enable) |
| { |
| u8 mgmt; |
| |
| b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); |
| |
| if (enable) |
| mgmt |= SM_SW_FWD_EN; |
| else |
| mgmt &= ~SM_SW_FWD_EN; |
| |
| b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt); |
| |
| /* Include IMP port in dumb forwarding mode |
| */ |
| b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, &mgmt); |
| mgmt |= B53_MII_DUMB_FWDG_EN; |
| b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_CTRL, mgmt); |
| } |
| |
| static void b53_enable_vlan(struct b53_device *dev, bool enable) |
| { |
| u8 mgmt, vc0, vc1, vc4 = 0, vc5; |
| |
| b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); |
| b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, &vc0); |
| b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, &vc1); |
| |
| if (is5325(dev) || is5365(dev)) { |
| b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4); |
| b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, &vc5); |
| } else if (is63xx(dev)) { |
| b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, &vc4); |
| b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, &vc5); |
| } else { |
| b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, &vc4); |
| b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, &vc5); |
| } |
| |
| mgmt &= ~SM_SW_FWD_MODE; |
| |
| if (enable) { |
| vc0 |= VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID; |
| vc1 |= VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN; |
| vc4 &= ~VC4_ING_VID_CHECK_MASK; |
| vc4 |= VC4_ING_VID_VIO_DROP << VC4_ING_VID_CHECK_S; |
| vc5 |= VC5_DROP_VTABLE_MISS; |
| |
| if (is5325(dev)) |
| vc0 &= ~VC0_RESERVED_1; |
| |
| if (is5325(dev) || is5365(dev)) |
| vc1 |= VC1_RX_MCST_TAG_EN; |
| |
| } else { |
| vc0 &= ~(VC0_VLAN_EN | VC0_VID_CHK_EN | VC0_VID_HASH_VID); |
| vc1 &= ~(VC1_RX_MCST_UNTAG_EN | VC1_RX_MCST_FWD_EN); |
| vc4 &= ~VC4_ING_VID_CHECK_MASK; |
| vc5 &= ~VC5_DROP_VTABLE_MISS; |
| |
| if (is5325(dev) || is5365(dev)) |
| vc4 |= VC4_ING_VID_VIO_FWD << VC4_ING_VID_CHECK_S; |
| else |
| vc4 |= VC4_ING_VID_VIO_TO_IMP << VC4_ING_VID_CHECK_S; |
| |
| if (is5325(dev) || is5365(dev)) |
| vc1 &= ~VC1_RX_MCST_TAG_EN; |
| } |
| |
| if (!is5325(dev) && !is5365(dev)) |
| vc5 &= ~VC5_VID_FFF_EN; |
| |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL0, vc0); |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL1, vc1); |
| |
| if (is5325(dev) || is5365(dev)) { |
| /* enable the high 8 bit vid check on 5325 */ |
| if (is5325(dev) && enable) |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, |
| VC3_HIGH_8BIT_EN); |
| else |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0); |
| |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, vc4); |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_25, vc5); |
| } else if (is63xx(dev)) { |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3_63XX, 0); |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_63XX, vc4); |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5_63XX, vc5); |
| } else { |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_CTRL3, 0); |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4, vc4); |
| b53_write8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL5, vc5); |
| } |
| |
| b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt); |
| } |
| |
| static int b53_set_jumbo(struct b53_device *dev, bool enable, bool allow_10_100) |
| { |
| u32 port_mask = 0; |
| u16 max_size = JMS_MIN_SIZE; |
| |
| if (is5325(dev) || is5365(dev)) |
| return -EINVAL; |
| |
| if (enable) { |
| port_mask = dev->enabled_ports; |
| max_size = JMS_MAX_SIZE; |
| if (allow_10_100) |
| port_mask |= JPM_10_100_JUMBO_EN; |
| } |
| |
| b53_write32(dev, B53_JUMBO_PAGE, dev->jumbo_pm_reg, port_mask); |
| return b53_write16(dev, B53_JUMBO_PAGE, dev->jumbo_size_reg, max_size); |
| } |
| |
| static int b53_flush_arl(struct b53_device *dev, u8 mask) |
| { |
| unsigned int i; |
| |
| b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, |
| FAST_AGE_DONE | FAST_AGE_DYNAMIC | mask); |
| |
| for (i = 0; i < 10; i++) { |
| u8 fast_age_ctrl; |
| |
| b53_read8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, |
| &fast_age_ctrl); |
| |
| if (!(fast_age_ctrl & FAST_AGE_DONE)) |
| goto out; |
| |
| msleep(1); |
| } |
| |
| return -ETIMEDOUT; |
| out: |
| /* Only age dynamic entries (default behavior) */ |
| b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_CTRL, FAST_AGE_DYNAMIC); |
| return 0; |
| } |
| |
| static int b53_fast_age_port(struct b53_device *dev, int port) |
| { |
| b53_write8(dev, B53_CTRL_PAGE, B53_FAST_AGE_PORT_CTRL, port); |
| |
| return b53_flush_arl(dev, FAST_AGE_PORT); |
| } |
| |
| static int b53_fast_age_vlan(struct b53_device *dev, u16 vid) |
| { |
| b53_write16(dev, B53_CTRL_PAGE, B53_FAST_AGE_VID_CTRL, vid); |
| |
| return b53_flush_arl(dev, FAST_AGE_VLAN); |
| } |
| |
| void b53_imp_vlan_setup(struct dsa_switch *ds, int cpu_port) |
| { |
| struct b53_device *dev = ds->priv; |
| unsigned int i; |
| u16 pvlan; |
| |
| /* Enable the IMP port to be in the same VLAN as the other ports |
| * on a per-port basis such that we only have Port i and IMP in |
| * the same VLAN. |
| */ |
| b53_for_each_port(dev, i) { |
| b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), &pvlan); |
| pvlan |= BIT(cpu_port); |
| b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), pvlan); |
| } |
| } |
| EXPORT_SYMBOL(b53_imp_vlan_setup); |
| |
| int b53_enable_port(struct dsa_switch *ds, int port, struct phy_device *phy) |
| { |
| struct b53_device *dev = ds->priv; |
| unsigned int cpu_port = ds->ports[port].cpu_dp->index; |
| u16 pvlan; |
| |
| /* Clear the Rx and Tx disable bits and set to no spanning tree */ |
| b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), 0); |
| |
| /* Set this port, and only this one to be in the default VLAN, |
| * if member of a bridge, restore its membership prior to |
| * bringing down this port. |
| */ |
| b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan); |
| pvlan &= ~0x1ff; |
| pvlan |= BIT(port); |
| pvlan |= dev->ports[port].vlan_ctl_mask; |
| b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan); |
| |
| b53_imp_vlan_setup(ds, cpu_port); |
| |
| /* If EEE was enabled, restore it */ |
| if (dev->ports[port].eee.eee_enabled) |
| b53_eee_enable_set(ds, port, true); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_enable_port); |
| |
| void b53_disable_port(struct dsa_switch *ds, int port, struct phy_device *phy) |
| { |
| struct b53_device *dev = ds->priv; |
| u8 reg; |
| |
| /* Disable Tx/Rx for the port */ |
| b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®); |
| reg |= PORT_CTRL_RX_DISABLE | PORT_CTRL_TX_DISABLE; |
| b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg); |
| } |
| EXPORT_SYMBOL(b53_disable_port); |
| |
| void b53_brcm_hdr_setup(struct dsa_switch *ds, int port) |
| { |
| bool tag_en = !(ds->ops->get_tag_protocol(ds, port) == |
| DSA_TAG_PROTO_NONE); |
| struct b53_device *dev = ds->priv; |
| u8 hdr_ctl, val; |
| u16 reg; |
| |
| /* Resolve which bit controls the Broadcom tag */ |
| switch (port) { |
| case 8: |
| val = BRCM_HDR_P8_EN; |
| break; |
| case 7: |
| val = BRCM_HDR_P7_EN; |
| break; |
| case 5: |
| val = BRCM_HDR_P5_EN; |
| break; |
| default: |
| val = 0; |
| break; |
| } |
| |
| /* Enable Broadcom tags for IMP port */ |
| b53_read8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, &hdr_ctl); |
| if (tag_en) |
| hdr_ctl |= val; |
| else |
| hdr_ctl &= ~val; |
| b53_write8(dev, B53_MGMT_PAGE, B53_BRCM_HDR, hdr_ctl); |
| |
| /* Registers below are only accessible on newer devices */ |
| if (!is58xx(dev)) |
| return; |
| |
| /* Enable reception Broadcom tag for CPU TX (switch RX) to |
| * allow us to tag outgoing frames |
| */ |
| b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, ®); |
| if (tag_en) |
| reg &= ~BIT(port); |
| else |
| reg |= BIT(port); |
| b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_RX_DIS, reg); |
| |
| /* Enable transmission of Broadcom tags from the switch (CPU RX) to |
| * allow delivering frames to the per-port net_devices |
| */ |
| b53_read16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, ®); |
| if (tag_en) |
| reg &= ~BIT(port); |
| else |
| reg |= BIT(port); |
| b53_write16(dev, B53_MGMT_PAGE, B53_BRCM_HDR_TX_DIS, reg); |
| } |
| EXPORT_SYMBOL(b53_brcm_hdr_setup); |
| |
| static void b53_enable_cpu_port(struct b53_device *dev, int port) |
| { |
| u8 port_ctrl; |
| |
| /* BCM5325 CPU port is at 8 */ |
| if ((is5325(dev) || is5365(dev)) && port == B53_CPU_PORT_25) |
| port = B53_CPU_PORT; |
| |
| port_ctrl = PORT_CTRL_RX_BCST_EN | |
| PORT_CTRL_RX_MCST_EN | |
| PORT_CTRL_RX_UCST_EN; |
| b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), port_ctrl); |
| |
| b53_brcm_hdr_setup(dev->ds, port); |
| } |
| |
| static void b53_enable_mib(struct b53_device *dev) |
| { |
| u8 gc; |
| |
| b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc); |
| gc &= ~(GC_RESET_MIB | GC_MIB_AC_EN); |
| b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc); |
| } |
| |
| int b53_configure_vlan(struct dsa_switch *ds) |
| { |
| struct b53_device *dev = ds->priv; |
| struct b53_vlan vl = { 0 }; |
| int i; |
| |
| /* clear all vlan entries */ |
| if (is5325(dev) || is5365(dev)) { |
| for (i = 1; i < dev->num_vlans; i++) |
| b53_set_vlan_entry(dev, i, &vl); |
| } else { |
| b53_do_vlan_op(dev, VTA_CMD_CLEAR); |
| } |
| |
| b53_enable_vlan(dev, false); |
| |
| b53_for_each_port(dev, i) |
| b53_write16(dev, B53_VLAN_PAGE, |
| B53_VLAN_PORT_DEF_TAG(i), 1); |
| |
| if (!is5325(dev) && !is5365(dev)) |
| b53_set_jumbo(dev, dev->enable_jumbo, false); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_configure_vlan); |
| |
| static void b53_switch_reset_gpio(struct b53_device *dev) |
| { |
| int gpio = dev->reset_gpio; |
| |
| if (gpio < 0) |
| return; |
| |
| /* Reset sequence: RESET low(50ms)->high(20ms) |
| */ |
| gpio_set_value(gpio, 0); |
| mdelay(50); |
| |
| gpio_set_value(gpio, 1); |
| mdelay(20); |
| |
| dev->current_page = 0xff; |
| } |
| |
| static int b53_switch_reset(struct b53_device *dev) |
| { |
| unsigned int timeout = 1000; |
| u8 mgmt, reg; |
| |
| b53_switch_reset_gpio(dev); |
| |
| if (is539x(dev)) { |
| b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x83); |
| b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, 0x00); |
| } |
| |
| /* This is specific to 58xx devices here, do not use is58xx() which |
| * covers the larger Starfigther 2 family, including 7445/7278 which |
| * still use this driver as a library and need to perform the reset |
| * earlier. |
| */ |
| if (dev->chip_id == BCM58XX_DEVICE_ID) { |
| b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®); |
| reg |= SW_RST | EN_SW_RST | EN_CH_RST; |
| b53_write8(dev, B53_CTRL_PAGE, B53_SOFTRESET, reg); |
| |
| do { |
| b53_read8(dev, B53_CTRL_PAGE, B53_SOFTRESET, ®); |
| if (!(reg & SW_RST)) |
| break; |
| |
| usleep_range(1000, 2000); |
| } while (timeout-- > 0); |
| |
| if (timeout == 0) |
| return -ETIMEDOUT; |
| } |
| |
| b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); |
| |
| if (!(mgmt & SM_SW_FWD_EN)) { |
| mgmt &= ~SM_SW_FWD_MODE; |
| mgmt |= SM_SW_FWD_EN; |
| |
| b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt); |
| b53_read8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, &mgmt); |
| |
| if (!(mgmt & SM_SW_FWD_EN)) { |
| dev_err(dev->dev, "Failed to enable switch!\n"); |
| return -EINVAL; |
| } |
| } |
| |
| b53_enable_mib(dev); |
| |
| return b53_flush_arl(dev, FAST_AGE_STATIC); |
| } |
| |
| static int b53_phy_read16(struct dsa_switch *ds, int addr, int reg) |
| { |
| struct b53_device *priv = ds->priv; |
| u16 value = 0; |
| int ret; |
| |
| if (priv->ops->phy_read16) |
| ret = priv->ops->phy_read16(priv, addr, reg, &value); |
| else |
| ret = b53_read16(priv, B53_PORT_MII_PAGE(addr), |
| reg * 2, &value); |
| |
| return ret ? ret : value; |
| } |
| |
| static int b53_phy_write16(struct dsa_switch *ds, int addr, int reg, u16 val) |
| { |
| struct b53_device *priv = ds->priv; |
| |
| if (priv->ops->phy_write16) |
| return priv->ops->phy_write16(priv, addr, reg, val); |
| |
| return b53_write16(priv, B53_PORT_MII_PAGE(addr), reg * 2, val); |
| } |
| |
| static int b53_reset_switch(struct b53_device *priv) |
| { |
| /* reset vlans */ |
| priv->enable_jumbo = false; |
| |
| memset(priv->vlans, 0, sizeof(*priv->vlans) * priv->num_vlans); |
| memset(priv->ports, 0, sizeof(*priv->ports) * priv->num_ports); |
| |
| return b53_switch_reset(priv); |
| } |
| |
| static int b53_apply_config(struct b53_device *priv) |
| { |
| /* disable switching */ |
| b53_set_forwarding(priv, 0); |
| |
| b53_configure_vlan(priv->ds); |
| |
| /* enable switching */ |
| b53_set_forwarding(priv, 1); |
| |
| return 0; |
| } |
| |
| static void b53_reset_mib(struct b53_device *priv) |
| { |
| u8 gc; |
| |
| b53_read8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc); |
| |
| b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc | GC_RESET_MIB); |
| msleep(1); |
| b53_write8(priv, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc & ~GC_RESET_MIB); |
| msleep(1); |
| } |
| |
| static const struct b53_mib_desc *b53_get_mib(struct b53_device *dev) |
| { |
| if (is5365(dev)) |
| return b53_mibs_65; |
| else if (is63xx(dev)) |
| return b53_mibs_63xx; |
| else if (is58xx(dev)) |
| return b53_mibs_58xx; |
| else |
| return b53_mibs; |
| } |
| |
| static unsigned int b53_get_mib_size(struct b53_device *dev) |
| { |
| if (is5365(dev)) |
| return B53_MIBS_65_SIZE; |
| else if (is63xx(dev)) |
| return B53_MIBS_63XX_SIZE; |
| else if (is58xx(dev)) |
| return B53_MIBS_58XX_SIZE; |
| else |
| return B53_MIBS_SIZE; |
| } |
| |
| void b53_get_strings(struct dsa_switch *ds, int port, uint8_t *data) |
| { |
| struct b53_device *dev = ds->priv; |
| const struct b53_mib_desc *mibs = b53_get_mib(dev); |
| unsigned int mib_size = b53_get_mib_size(dev); |
| unsigned int i; |
| |
| for (i = 0; i < mib_size; i++) |
| strlcpy(data + i * ETH_GSTRING_LEN, |
| mibs[i].name, ETH_GSTRING_LEN); |
| } |
| EXPORT_SYMBOL(b53_get_strings); |
| |
| void b53_get_ethtool_stats(struct dsa_switch *ds, int port, uint64_t *data) |
| { |
| struct b53_device *dev = ds->priv; |
| const struct b53_mib_desc *mibs = b53_get_mib(dev); |
| unsigned int mib_size = b53_get_mib_size(dev); |
| const struct b53_mib_desc *s; |
| unsigned int i; |
| u64 val = 0; |
| |
| if (is5365(dev) && port == 5) |
| port = 8; |
| |
| mutex_lock(&dev->stats_mutex); |
| |
| for (i = 0; i < mib_size; i++) { |
| s = &mibs[i]; |
| |
| if (s->size == 8) { |
| b53_read64(dev, B53_MIB_PAGE(port), s->offset, &val); |
| } else { |
| u32 val32; |
| |
| b53_read32(dev, B53_MIB_PAGE(port), s->offset, |
| &val32); |
| val = val32; |
| } |
| data[i] = (u64)val; |
| } |
| |
| mutex_unlock(&dev->stats_mutex); |
| } |
| EXPORT_SYMBOL(b53_get_ethtool_stats); |
| |
| int b53_get_sset_count(struct dsa_switch *ds, int port) |
| { |
| struct b53_device *dev = ds->priv; |
| |
| return b53_get_mib_size(dev); |
| } |
| EXPORT_SYMBOL(b53_get_sset_count); |
| |
| static int b53_setup(struct dsa_switch *ds) |
| { |
| struct b53_device *dev = ds->priv; |
| unsigned int port; |
| int ret; |
| |
| ret = b53_reset_switch(dev); |
| if (ret) { |
| dev_err(ds->dev, "failed to reset switch\n"); |
| return ret; |
| } |
| |
| b53_reset_mib(dev); |
| |
| ret = b53_apply_config(dev); |
| if (ret) |
| dev_err(ds->dev, "failed to apply configuration\n"); |
| |
| /* Configure IMP/CPU port, disable unused ports. Enabled |
| * ports will be configured with .port_enable |
| */ |
| for (port = 0; port < dev->num_ports; port++) { |
| if (dsa_is_cpu_port(ds, port)) |
| b53_enable_cpu_port(dev, port); |
| else if (dsa_is_unused_port(ds, port)) |
| b53_disable_port(ds, port, NULL); |
| } |
| |
| return ret; |
| } |
| |
| static void b53_adjust_link(struct dsa_switch *ds, int port, |
| struct phy_device *phydev) |
| { |
| struct b53_device *dev = ds->priv; |
| struct ethtool_eee *p = &dev->ports[port].eee; |
| u8 rgmii_ctrl = 0, reg = 0, off; |
| |
| if (!phy_is_pseudo_fixed_link(phydev)) |
| return; |
| |
| /* Override the port settings */ |
| if (port == dev->cpu_port) { |
| off = B53_PORT_OVERRIDE_CTRL; |
| reg = PORT_OVERRIDE_EN; |
| } else { |
| off = B53_GMII_PORT_OVERRIDE_CTRL(port); |
| reg = GMII_PO_EN; |
| } |
| |
| /* Set the link UP */ |
| if (phydev->link) |
| reg |= PORT_OVERRIDE_LINK; |
| |
| if (phydev->duplex == DUPLEX_FULL) |
| reg |= PORT_OVERRIDE_FULL_DUPLEX; |
| |
| switch (phydev->speed) { |
| case 2000: |
| reg |= PORT_OVERRIDE_SPEED_2000M; |
| /* fallthrough */ |
| case SPEED_1000: |
| reg |= PORT_OVERRIDE_SPEED_1000M; |
| break; |
| case SPEED_100: |
| reg |= PORT_OVERRIDE_SPEED_100M; |
| break; |
| case SPEED_10: |
| reg |= PORT_OVERRIDE_SPEED_10M; |
| break; |
| default: |
| dev_err(ds->dev, "unknown speed: %d\n", phydev->speed); |
| return; |
| } |
| |
| /* Enable flow control on BCM5301x's CPU port */ |
| if (is5301x(dev) && port == dev->cpu_port) |
| reg |= PORT_OVERRIDE_RX_FLOW | PORT_OVERRIDE_TX_FLOW; |
| |
| if (phydev->pause) { |
| if (phydev->asym_pause) |
| reg |= PORT_OVERRIDE_TX_FLOW; |
| reg |= PORT_OVERRIDE_RX_FLOW; |
| } |
| |
| b53_write8(dev, B53_CTRL_PAGE, off, reg); |
| |
| if (is531x5(dev) && phy_interface_is_rgmii(phydev)) { |
| if (port == 8) |
| off = B53_RGMII_CTRL_IMP; |
| else |
| off = B53_RGMII_CTRL_P(port); |
| |
| /* Configure the port RGMII clock delay by DLL disabled and |
| * tx_clk aligned timing (restoring to reset defaults) |
| */ |
| b53_read8(dev, B53_CTRL_PAGE, off, &rgmii_ctrl); |
| rgmii_ctrl &= ~(RGMII_CTRL_DLL_RXC | RGMII_CTRL_DLL_TXC | |
| RGMII_CTRL_TIMING_SEL); |
| |
| /* PHY_INTERFACE_MODE_RGMII_TXID means TX internal delay, make |
| * sure that we enable the port TX clock internal delay to |
| * account for this internal delay that is inserted, otherwise |
| * the switch won't be able to receive correctly. |
| * |
| * PHY_INTERFACE_MODE_RGMII means that we are not introducing |
| * any delay neither on transmission nor reception, so the |
| * BCM53125 must also be configured accordingly to account for |
| * the lack of delay and introduce |
| * |
| * The BCM53125 switch has its RX clock and TX clock control |
| * swapped, hence the reason why we modify the TX clock path in |
| * the "RGMII" case |
| */ |
| if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) |
| rgmii_ctrl |= RGMII_CTRL_DLL_TXC; |
| if (phydev->interface == PHY_INTERFACE_MODE_RGMII) |
| rgmii_ctrl |= RGMII_CTRL_DLL_TXC | RGMII_CTRL_DLL_RXC; |
| rgmii_ctrl |= RGMII_CTRL_TIMING_SEL; |
| b53_write8(dev, B53_CTRL_PAGE, off, rgmii_ctrl); |
| |
| dev_info(ds->dev, "Configured port %d for %s\n", port, |
| phy_modes(phydev->interface)); |
| } |
| |
| /* configure MII port if necessary */ |
| if (is5325(dev)) { |
| b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, |
| ®); |
| |
| /* reverse mii needs to be enabled */ |
| if (!(reg & PORT_OVERRIDE_RV_MII_25)) { |
| b53_write8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, |
| reg | PORT_OVERRIDE_RV_MII_25); |
| b53_read8(dev, B53_CTRL_PAGE, B53_PORT_OVERRIDE_CTRL, |
| ®); |
| |
| if (!(reg & PORT_OVERRIDE_RV_MII_25)) { |
| dev_err(ds->dev, |
| "Failed to enable reverse MII mode\n"); |
| return; |
| } |
| } |
| } else if (is5301x(dev)) { |
| if (port != dev->cpu_port) { |
| u8 po_reg = B53_GMII_PORT_OVERRIDE_CTRL(dev->cpu_port); |
| u8 gmii_po; |
| |
| b53_read8(dev, B53_CTRL_PAGE, po_reg, &gmii_po); |
| gmii_po |= GMII_PO_LINK | |
| GMII_PO_RX_FLOW | |
| GMII_PO_TX_FLOW | |
| GMII_PO_EN | |
| GMII_PO_SPEED_2000M; |
| b53_write8(dev, B53_CTRL_PAGE, po_reg, gmii_po); |
| } |
| } |
| |
| /* Re-negotiate EEE if it was enabled already */ |
| p->eee_enabled = b53_eee_init(ds, port, phydev); |
| } |
| |
| int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering) |
| { |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_vlan_filtering); |
| |
| int b53_vlan_prepare(struct dsa_switch *ds, int port, |
| const struct switchdev_obj_port_vlan *vlan) |
| { |
| struct b53_device *dev = ds->priv; |
| |
| if ((is5325(dev) || is5365(dev)) && vlan->vid_begin == 0) |
| return -EOPNOTSUPP; |
| |
| if (vlan->vid_end > dev->num_vlans) |
| return -ERANGE; |
| |
| b53_enable_vlan(dev, true); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_vlan_prepare); |
| |
| void b53_vlan_add(struct dsa_switch *ds, int port, |
| const struct switchdev_obj_port_vlan *vlan) |
| { |
| struct b53_device *dev = ds->priv; |
| bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; |
| bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID; |
| struct b53_vlan *vl; |
| u16 vid; |
| |
| for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { |
| vl = &dev->vlans[vid]; |
| |
| b53_get_vlan_entry(dev, vid, vl); |
| |
| vl->members |= BIT(port); |
| if (untagged) |
| vl->untag |= BIT(port); |
| else |
| vl->untag &= ~BIT(port); |
| |
| b53_set_vlan_entry(dev, vid, vl); |
| b53_fast_age_vlan(dev, vid); |
| } |
| |
| if (pvid) { |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), |
| vlan->vid_end); |
| b53_fast_age_vlan(dev, vid); |
| } |
| } |
| EXPORT_SYMBOL(b53_vlan_add); |
| |
| int b53_vlan_del(struct dsa_switch *ds, int port, |
| const struct switchdev_obj_port_vlan *vlan) |
| { |
| struct b53_device *dev = ds->priv; |
| bool untagged = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED; |
| struct b53_vlan *vl; |
| u16 vid; |
| u16 pvid; |
| |
| b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), &pvid); |
| |
| for (vid = vlan->vid_begin; vid <= vlan->vid_end; ++vid) { |
| vl = &dev->vlans[vid]; |
| |
| b53_get_vlan_entry(dev, vid, vl); |
| |
| vl->members &= ~BIT(port); |
| |
| if (pvid == vid) { |
| if (is5325(dev) || is5365(dev)) |
| pvid = 1; |
| else |
| pvid = 0; |
| } |
| |
| if (untagged) |
| vl->untag &= ~(BIT(port)); |
| |
| b53_set_vlan_entry(dev, vid, vl); |
| b53_fast_age_vlan(dev, vid); |
| } |
| |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_PORT_DEF_TAG(port), pvid); |
| b53_fast_age_vlan(dev, pvid); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_vlan_del); |
| |
| /* Address Resolution Logic routines */ |
| static int b53_arl_op_wait(struct b53_device *dev) |
| { |
| unsigned int timeout = 10; |
| u8 reg; |
| |
| do { |
| b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®); |
| if (!(reg & ARLTBL_START_DONE)) |
| return 0; |
| |
| usleep_range(1000, 2000); |
| } while (timeout--); |
| |
| dev_warn(dev->dev, "timeout waiting for ARL to finish: 0x%02x\n", reg); |
| |
| return -ETIMEDOUT; |
| } |
| |
| static int b53_arl_rw_op(struct b53_device *dev, unsigned int op) |
| { |
| u8 reg; |
| |
| if (op > ARLTBL_RW) |
| return -EINVAL; |
| |
| b53_read8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, ®); |
| reg |= ARLTBL_START_DONE; |
| if (op) |
| reg |= ARLTBL_RW; |
| else |
| reg &= ~ARLTBL_RW; |
| b53_write8(dev, B53_ARLIO_PAGE, B53_ARLTBL_RW_CTRL, reg); |
| |
| return b53_arl_op_wait(dev); |
| } |
| |
| static int b53_arl_read(struct b53_device *dev, u64 mac, |
| u16 vid, struct b53_arl_entry *ent, u8 *idx, |
| bool is_valid) |
| { |
| unsigned int i; |
| int ret; |
| |
| ret = b53_arl_op_wait(dev); |
| if (ret) |
| return ret; |
| |
| /* Read the bins */ |
| for (i = 0; i < dev->num_arl_entries; i++) { |
| u64 mac_vid; |
| u32 fwd_entry; |
| |
| b53_read64(dev, B53_ARLIO_PAGE, |
| B53_ARLTBL_MAC_VID_ENTRY(i), &mac_vid); |
| b53_read32(dev, B53_ARLIO_PAGE, |
| B53_ARLTBL_DATA_ENTRY(i), &fwd_entry); |
| b53_arl_to_entry(ent, mac_vid, fwd_entry); |
| |
| if (!(fwd_entry & ARLTBL_VALID)) |
| continue; |
| if ((mac_vid & ARLTBL_MAC_MASK) != mac) |
| continue; |
| *idx = i; |
| } |
| |
| return -ENOENT; |
| } |
| |
| static int b53_arl_op(struct b53_device *dev, int op, int port, |
| const unsigned char *addr, u16 vid, bool is_valid) |
| { |
| struct b53_arl_entry ent; |
| u32 fwd_entry; |
| u64 mac, mac_vid = 0; |
| u8 idx = 0; |
| int ret; |
| |
| /* Convert the array into a 64-bit MAC */ |
| mac = ether_addr_to_u64(addr); |
| |
| /* Perform a read for the given MAC and VID */ |
| b53_write48(dev, B53_ARLIO_PAGE, B53_MAC_ADDR_IDX, mac); |
| b53_write16(dev, B53_ARLIO_PAGE, B53_VLAN_ID_IDX, vid); |
| |
| /* Issue a read operation for this MAC */ |
| ret = b53_arl_rw_op(dev, 1); |
| if (ret) |
| return ret; |
| |
| ret = b53_arl_read(dev, mac, vid, &ent, &idx, is_valid); |
| /* If this is a read, just finish now */ |
| if (op) |
| return ret; |
| |
| /* We could not find a matching MAC, so reset to a new entry */ |
| if (ret) { |
| fwd_entry = 0; |
| idx = 1; |
| } |
| |
| memset(&ent, 0, sizeof(ent)); |
| ent.port = port; |
| ent.is_valid = is_valid; |
| ent.vid = vid; |
| ent.is_static = true; |
| memcpy(ent.mac, addr, ETH_ALEN); |
| b53_arl_from_entry(&mac_vid, &fwd_entry, &ent); |
| |
| b53_write64(dev, B53_ARLIO_PAGE, |
| B53_ARLTBL_MAC_VID_ENTRY(idx), mac_vid); |
| b53_write32(dev, B53_ARLIO_PAGE, |
| B53_ARLTBL_DATA_ENTRY(idx), fwd_entry); |
| |
| return b53_arl_rw_op(dev, 0); |
| } |
| |
| int b53_fdb_add(struct dsa_switch *ds, int port, |
| const unsigned char *addr, u16 vid) |
| { |
| struct b53_device *priv = ds->priv; |
| |
| /* 5325 and 5365 require some more massaging, but could |
| * be supported eventually |
| */ |
| if (is5325(priv) || is5365(priv)) |
| return -EOPNOTSUPP; |
| |
| return b53_arl_op(priv, 0, port, addr, vid, true); |
| } |
| EXPORT_SYMBOL(b53_fdb_add); |
| |
| int b53_fdb_del(struct dsa_switch *ds, int port, |
| const unsigned char *addr, u16 vid) |
| { |
| struct b53_device *priv = ds->priv; |
| |
| return b53_arl_op(priv, 0, port, addr, vid, false); |
| } |
| EXPORT_SYMBOL(b53_fdb_del); |
| |
| static int b53_arl_search_wait(struct b53_device *dev) |
| { |
| unsigned int timeout = 1000; |
| u8 reg; |
| |
| do { |
| b53_read8(dev, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, ®); |
| if (!(reg & ARL_SRCH_STDN)) |
| return 0; |
| |
| if (reg & ARL_SRCH_VLID) |
| return 0; |
| |
| usleep_range(1000, 2000); |
| } while (timeout--); |
| |
| return -ETIMEDOUT; |
| } |
| |
| static void b53_arl_search_rd(struct b53_device *dev, u8 idx, |
| struct b53_arl_entry *ent) |
| { |
| u64 mac_vid; |
| u32 fwd_entry; |
| |
| b53_read64(dev, B53_ARLIO_PAGE, |
| B53_ARL_SRCH_RSTL_MACVID(idx), &mac_vid); |
| b53_read32(dev, B53_ARLIO_PAGE, |
| B53_ARL_SRCH_RSTL(idx), &fwd_entry); |
| b53_arl_to_entry(ent, mac_vid, fwd_entry); |
| } |
| |
| static int b53_fdb_copy(int port, const struct b53_arl_entry *ent, |
| dsa_fdb_dump_cb_t *cb, void *data) |
| { |
| if (!ent->is_valid) |
| return 0; |
| |
| if (port != ent->port) |
| return 0; |
| |
| return cb(ent->mac, ent->vid, ent->is_static, data); |
| } |
| |
| int b53_fdb_dump(struct dsa_switch *ds, int port, |
| dsa_fdb_dump_cb_t *cb, void *data) |
| { |
| struct b53_device *priv = ds->priv; |
| struct b53_arl_entry results[2]; |
| unsigned int count = 0; |
| int ret; |
| u8 reg; |
| |
| /* Start search operation */ |
| reg = ARL_SRCH_STDN; |
| b53_write8(priv, B53_ARLIO_PAGE, B53_ARL_SRCH_CTL, reg); |
| |
| do { |
| ret = b53_arl_search_wait(priv); |
| if (ret) |
| return ret; |
| |
| b53_arl_search_rd(priv, 0, &results[0]); |
| ret = b53_fdb_copy(port, &results[0], cb, data); |
| if (ret) |
| return ret; |
| |
| if (priv->num_arl_entries > 2) { |
| b53_arl_search_rd(priv, 1, &results[1]); |
| ret = b53_fdb_copy(port, &results[1], cb, data); |
| if (ret) |
| return ret; |
| |
| if (!results[0].is_valid && !results[1].is_valid) |
| break; |
| } |
| |
| } while (count++ < 1024); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_fdb_dump); |
| |
| int b53_br_join(struct dsa_switch *ds, int port, struct net_device *br) |
| { |
| struct b53_device *dev = ds->priv; |
| s8 cpu_port = ds->ports[port].cpu_dp->index; |
| u16 pvlan, reg; |
| unsigned int i; |
| |
| /* Make this port leave the all VLANs join since we will have proper |
| * VLAN entries from now on |
| */ |
| if (is58xx(dev)) { |
| b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®); |
| reg &= ~BIT(port); |
| if ((reg & BIT(cpu_port)) == BIT(cpu_port)) |
| reg &= ~BIT(cpu_port); |
| b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg); |
| } |
| |
| b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan); |
| |
| b53_for_each_port(dev, i) { |
| if (dsa_to_port(ds, i)->bridge_dev != br) |
| continue; |
| |
| /* Add this local port to the remote port VLAN control |
| * membership and update the remote port bitmask |
| */ |
| b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®); |
| reg |= BIT(port); |
| b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg); |
| dev->ports[i].vlan_ctl_mask = reg; |
| |
| pvlan |= BIT(i); |
| } |
| |
| /* Configure the local port VLAN control membership to include |
| * remote ports and update the local port bitmask |
| */ |
| b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan); |
| dev->ports[port].vlan_ctl_mask = pvlan; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_br_join); |
| |
| void b53_br_leave(struct dsa_switch *ds, int port, struct net_device *br) |
| { |
| struct b53_device *dev = ds->priv; |
| struct b53_vlan *vl = &dev->vlans[0]; |
| s8 cpu_port = ds->ports[port].cpu_dp->index; |
| unsigned int i; |
| u16 pvlan, reg, pvid; |
| |
| b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), &pvlan); |
| |
| b53_for_each_port(dev, i) { |
| /* Don't touch the remaining ports */ |
| if (dsa_to_port(ds, i)->bridge_dev != br) |
| continue; |
| |
| b53_read16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), ®); |
| reg &= ~BIT(port); |
| b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(i), reg); |
| dev->ports[port].vlan_ctl_mask = reg; |
| |
| /* Prevent self removal to preserve isolation */ |
| if (port != i) |
| pvlan &= ~BIT(i); |
| } |
| |
| b53_write16(dev, B53_PVLAN_PAGE, B53_PVLAN_PORT_MASK(port), pvlan); |
| dev->ports[port].vlan_ctl_mask = pvlan; |
| |
| if (is5325(dev) || is5365(dev)) |
| pvid = 1; |
| else |
| pvid = 0; |
| |
| /* Make this port join all VLANs without VLAN entries */ |
| if (is58xx(dev)) { |
| b53_read16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, ®); |
| reg |= BIT(port); |
| if (!(reg & BIT(cpu_port))) |
| reg |= BIT(cpu_port); |
| b53_write16(dev, B53_VLAN_PAGE, B53_JOIN_ALL_VLAN_EN, reg); |
| } else { |
| b53_get_vlan_entry(dev, pvid, vl); |
| vl->members |= BIT(port) | BIT(cpu_port); |
| vl->untag |= BIT(port) | BIT(cpu_port); |
| b53_set_vlan_entry(dev, pvid, vl); |
| } |
| } |
| EXPORT_SYMBOL(b53_br_leave); |
| |
| void b53_br_set_stp_state(struct dsa_switch *ds, int port, u8 state) |
| { |
| struct b53_device *dev = ds->priv; |
| u8 hw_state; |
| u8 reg; |
| |
| switch (state) { |
| case BR_STATE_DISABLED: |
| hw_state = PORT_CTRL_DIS_STATE; |
| break; |
| case BR_STATE_LISTENING: |
| hw_state = PORT_CTRL_LISTEN_STATE; |
| break; |
| case BR_STATE_LEARNING: |
| hw_state = PORT_CTRL_LEARN_STATE; |
| break; |
| case BR_STATE_FORWARDING: |
| hw_state = PORT_CTRL_FWD_STATE; |
| break; |
| case BR_STATE_BLOCKING: |
| hw_state = PORT_CTRL_BLOCK_STATE; |
| break; |
| default: |
| dev_err(ds->dev, "invalid STP state: %d\n", state); |
| return; |
| } |
| |
| b53_read8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), ®); |
| reg &= ~PORT_CTRL_STP_STATE_MASK; |
| reg |= hw_state; |
| b53_write8(dev, B53_CTRL_PAGE, B53_PORT_CTRL(port), reg); |
| } |
| EXPORT_SYMBOL(b53_br_set_stp_state); |
| |
| void b53_br_fast_age(struct dsa_switch *ds, int port) |
| { |
| struct b53_device *dev = ds->priv; |
| |
| if (b53_fast_age_port(dev, port)) |
| dev_err(ds->dev, "fast ageing failed\n"); |
| } |
| EXPORT_SYMBOL(b53_br_fast_age); |
| |
| static bool b53_can_enable_brcm_tags(struct dsa_switch *ds, int port) |
| { |
| /* Broadcom switches will accept enabling Broadcom tags on the |
| * following ports: 5, 7 and 8, any other port is not supported |
| */ |
| switch (port) { |
| case B53_CPU_PORT_25: |
| case 7: |
| case B53_CPU_PORT: |
| return true; |
| } |
| |
| dev_warn(ds->dev, "Port %d is not Broadcom tag capable\n", port); |
| return false; |
| } |
| |
| enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds, int port) |
| { |
| struct b53_device *dev = ds->priv; |
| |
| /* Older models (5325, 5365) support a different tag format that we do |
| * not support in net/dsa/tag_brcm.c yet. 539x and 531x5 require managed |
| * mode to be turned on which means we need to specifically manage ARL |
| * misses on multicast addresses (TBD). |
| */ |
| if (is5325(dev) || is5365(dev) || is539x(dev) || is531x5(dev) || |
| !b53_can_enable_brcm_tags(ds, port)) |
| return DSA_TAG_PROTO_NONE; |
| |
| /* Broadcom BCM58xx chips have a flow accelerator on Port 8 |
| * which requires us to use the prepended Broadcom tag type |
| */ |
| if (dev->chip_id == BCM58XX_DEVICE_ID && port == B53_CPU_PORT) |
| return DSA_TAG_PROTO_BRCM_PREPEND; |
| |
| return DSA_TAG_PROTO_BRCM; |
| } |
| EXPORT_SYMBOL(b53_get_tag_protocol); |
| |
| int b53_mirror_add(struct dsa_switch *ds, int port, |
| struct dsa_mall_mirror_tc_entry *mirror, bool ingress) |
| { |
| struct b53_device *dev = ds->priv; |
| u16 reg, loc; |
| |
| if (ingress) |
| loc = B53_IG_MIR_CTL; |
| else |
| loc = B53_EG_MIR_CTL; |
| |
| b53_read16(dev, B53_MGMT_PAGE, loc, ®); |
| reg &= ~MIRROR_MASK; |
| reg |= BIT(port); |
| b53_write16(dev, B53_MGMT_PAGE, loc, reg); |
| |
| b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®); |
| reg &= ~CAP_PORT_MASK; |
| reg |= mirror->to_local_port; |
| reg |= MIRROR_EN; |
| b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_mirror_add); |
| |
| void b53_mirror_del(struct dsa_switch *ds, int port, |
| struct dsa_mall_mirror_tc_entry *mirror) |
| { |
| struct b53_device *dev = ds->priv; |
| bool loc_disable = false, other_loc_disable = false; |
| u16 reg, loc; |
| |
| if (mirror->ingress) |
| loc = B53_IG_MIR_CTL; |
| else |
| loc = B53_EG_MIR_CTL; |
| |
| /* Update the desired ingress/egress register */ |
| b53_read16(dev, B53_MGMT_PAGE, loc, ®); |
| reg &= ~BIT(port); |
| if (!(reg & MIRROR_MASK)) |
| loc_disable = true; |
| b53_write16(dev, B53_MGMT_PAGE, loc, reg); |
| |
| /* Now look at the other one to know if we can disable mirroring |
| * entirely |
| */ |
| if (mirror->ingress) |
| b53_read16(dev, B53_MGMT_PAGE, B53_EG_MIR_CTL, ®); |
| else |
| b53_read16(dev, B53_MGMT_PAGE, B53_IG_MIR_CTL, ®); |
| if (!(reg & MIRROR_MASK)) |
| other_loc_disable = true; |
| |
| b53_read16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, ®); |
| /* Both no longer have ports, let's disable mirroring */ |
| if (loc_disable && other_loc_disable) { |
| reg &= ~MIRROR_EN; |
| reg &= ~mirror->to_local_port; |
| } |
| b53_write16(dev, B53_MGMT_PAGE, B53_MIR_CAP_CTL, reg); |
| } |
| EXPORT_SYMBOL(b53_mirror_del); |
| |
| void b53_eee_enable_set(struct dsa_switch *ds, int port, bool enable) |
| { |
| struct b53_device *dev = ds->priv; |
| u16 reg; |
| |
| b53_read16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, ®); |
| if (enable) |
| reg |= BIT(port); |
| else |
| reg &= ~BIT(port); |
| b53_write16(dev, B53_EEE_PAGE, B53_EEE_EN_CTRL, reg); |
| } |
| EXPORT_SYMBOL(b53_eee_enable_set); |
| |
| |
| /* Returns 0 if EEE was not enabled, or 1 otherwise |
| */ |
| int b53_eee_init(struct dsa_switch *ds, int port, struct phy_device *phy) |
| { |
| int ret; |
| |
| ret = phy_init_eee(phy, 0); |
| if (ret) |
| return 0; |
| |
| b53_eee_enable_set(ds, port, true); |
| |
| return 1; |
| } |
| EXPORT_SYMBOL(b53_eee_init); |
| |
| int b53_get_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e) |
| { |
| struct b53_device *dev = ds->priv; |
| struct ethtool_eee *p = &dev->ports[port].eee; |
| u16 reg; |
| |
| if (is5325(dev) || is5365(dev)) |
| return -EOPNOTSUPP; |
| |
| b53_read16(dev, B53_EEE_PAGE, B53_EEE_LPI_INDICATE, ®); |
| e->eee_enabled = p->eee_enabled; |
| e->eee_active = !!(reg & BIT(port)); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_get_mac_eee); |
| |
| int b53_set_mac_eee(struct dsa_switch *ds, int port, struct ethtool_eee *e) |
| { |
| struct b53_device *dev = ds->priv; |
| struct ethtool_eee *p = &dev->ports[port].eee; |
| |
| if (is5325(dev) || is5365(dev)) |
| return -EOPNOTSUPP; |
| |
| p->eee_enabled = e->eee_enabled; |
| b53_eee_enable_set(ds, port, e->eee_enabled); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(b53_set_mac_eee); |
| |
| static const struct dsa_switch_ops b53_switch_ops = { |
| .get_tag_protocol = b53_get_tag_protocol, |
| .setup = b53_setup, |
| .get_strings = b53_get_strings, |
| .get_ethtool_stats = b53_get_ethtool_stats, |
| .get_sset_count = b53_get_sset_count, |
| .phy_read = b53_phy_read16, |
| .phy_write = b53_phy_write16, |
| .adjust_link = b53_adjust_link, |
| .port_enable = b53_enable_port, |
| .port_disable = b53_disable_port, |
| .get_mac_eee = b53_get_mac_eee, |
| .set_mac_eee = b53_set_mac_eee, |
| .port_bridge_join = b53_br_join, |
| .port_bridge_leave = b53_br_leave, |
| .port_stp_state_set = b53_br_set_stp_state, |
| .port_fast_age = b53_br_fast_age, |
| .port_vlan_filtering = b53_vlan_filtering, |
| .port_vlan_prepare = b53_vlan_prepare, |
| .port_vlan_add = b53_vlan_add, |
| .port_vlan_del = b53_vlan_del, |
| .port_fdb_dump = b53_fdb_dump, |
| .port_fdb_add = b53_fdb_add, |
| .port_fdb_del = b53_fdb_del, |
| .port_mirror_add = b53_mirror_add, |
| .port_mirror_del = b53_mirror_del, |
| }; |
| |
| struct b53_chip_data { |
| u32 chip_id; |
| const char *dev_name; |
| u16 vlans; |
| u16 enabled_ports; |
| u8 cpu_port; |
| u8 vta_regs[3]; |
| u8 arl_entries; |
| u8 duplex_reg; |
| u8 jumbo_pm_reg; |
| u8 jumbo_size_reg; |
| }; |
| |
| #define B53_VTA_REGS \ |
| { B53_VT_ACCESS, B53_VT_INDEX, B53_VT_ENTRY } |
| #define B53_VTA_REGS_9798 \ |
| { B53_VT_ACCESS_9798, B53_VT_INDEX_9798, B53_VT_ENTRY_9798 } |
| #define B53_VTA_REGS_63XX \ |
| { B53_VT_ACCESS_63XX, B53_VT_INDEX_63XX, B53_VT_ENTRY_63XX } |
| |
| static const struct b53_chip_data b53_switch_chips[] = { |
| { |
| .chip_id = BCM5325_DEVICE_ID, |
| .dev_name = "BCM5325", |
| .vlans = 16, |
| .enabled_ports = 0x1f, |
| .arl_entries = 2, |
| .cpu_port = B53_CPU_PORT_25, |
| .duplex_reg = B53_DUPLEX_STAT_FE, |
| }, |
| { |
| .chip_id = BCM5365_DEVICE_ID, |
| .dev_name = "BCM5365", |
| .vlans = 256, |
| .enabled_ports = 0x1f, |
| .arl_entries = 2, |
| .cpu_port = B53_CPU_PORT_25, |
| .duplex_reg = B53_DUPLEX_STAT_FE, |
| }, |
| { |
| .chip_id = BCM5389_DEVICE_ID, |
| .dev_name = "BCM5389", |
| .vlans = 4096, |
| .enabled_ports = 0x1f, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM5395_DEVICE_ID, |
| .dev_name = "BCM5395", |
| .vlans = 4096, |
| .enabled_ports = 0x1f, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM5397_DEVICE_ID, |
| .dev_name = "BCM5397", |
| .vlans = 4096, |
| .enabled_ports = 0x1f, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS_9798, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM5398_DEVICE_ID, |
| .dev_name = "BCM5398", |
| .vlans = 4096, |
| .enabled_ports = 0x7f, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS_9798, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM53115_DEVICE_ID, |
| .dev_name = "BCM53115", |
| .vlans = 4096, |
| .enabled_ports = 0x1f, |
| .arl_entries = 4, |
| .vta_regs = B53_VTA_REGS, |
| .cpu_port = B53_CPU_PORT, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM53125_DEVICE_ID, |
| .dev_name = "BCM53125", |
| .vlans = 4096, |
| .enabled_ports = 0xff, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM53128_DEVICE_ID, |
| .dev_name = "BCM53128", |
| .vlans = 4096, |
| .enabled_ports = 0x1ff, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM63XX_DEVICE_ID, |
| .dev_name = "BCM63xx", |
| .vlans = 4096, |
| .enabled_ports = 0, /* pdata must provide them */ |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS_63XX, |
| .duplex_reg = B53_DUPLEX_STAT_63XX, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK_63XX, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE_63XX, |
| }, |
| { |
| .chip_id = BCM53010_DEVICE_ID, |
| .dev_name = "BCM53010", |
| .vlans = 4096, |
| .enabled_ports = 0x1f, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM53011_DEVICE_ID, |
| .dev_name = "BCM53011", |
| .vlans = 4096, |
| .enabled_ports = 0x1bf, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM53012_DEVICE_ID, |
| .dev_name = "BCM53012", |
| .vlans = 4096, |
| .enabled_ports = 0x1bf, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM53018_DEVICE_ID, |
| .dev_name = "BCM53018", |
| .vlans = 4096, |
| .enabled_ports = 0x1f, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM53019_DEVICE_ID, |
| .dev_name = "BCM53019", |
| .vlans = 4096, |
| .enabled_ports = 0x1f, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT_25, /* TODO: auto detect */ |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM58XX_DEVICE_ID, |
| .dev_name = "BCM585xx/586xx/88312", |
| .vlans = 4096, |
| .enabled_ports = 0x1ff, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM7445_DEVICE_ID, |
| .dev_name = "BCM7445", |
| .vlans = 4096, |
| .enabled_ports = 0x1ff, |
| .arl_entries = 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| { |
| .chip_id = BCM7278_DEVICE_ID, |
| .dev_name = "BCM7278", |
| .vlans = 4096, |
| .enabled_ports = 0x1ff, |
| .arl_entries= 4, |
| .cpu_port = B53_CPU_PORT, |
| .vta_regs = B53_VTA_REGS, |
| .duplex_reg = B53_DUPLEX_STAT_GE, |
| .jumbo_pm_reg = B53_JUMBO_PORT_MASK, |
| .jumbo_size_reg = B53_JUMBO_MAX_SIZE, |
| }, |
| }; |
| |
| static int b53_switch_init(struct b53_device *dev) |
| { |
| unsigned int i; |
| int ret; |
| |
| for (i = 0; i < ARRAY_SIZE(b53_switch_chips); i++) { |
| const struct b53_chip_data *chip = &b53_switch_chips[i]; |
| |
| if (chip->chip_id == dev->chip_id) { |
| if (!dev->enabled_ports) |
| dev->enabled_ports = chip->enabled_ports; |
| dev->name = chip->dev_name; |
| dev->duplex_reg = chip->duplex_reg; |
| dev->vta_regs[0] = chip->vta_regs[0]; |
| dev->vta_regs[1] = chip->vta_regs[1]; |
| dev->vta_regs[2] = chip->vta_regs[2]; |
| dev->jumbo_pm_reg = chip->jumbo_pm_reg; |
| dev->cpu_port = chip->cpu_port; |
| dev->num_vlans = chip->vlans; |
| dev->num_arl_entries = chip->arl_entries; |
| break; |
| } |
| } |
| |
| /* check which BCM5325x version we have */ |
| if (is5325(dev)) { |
| u8 vc4; |
| |
| b53_read8(dev, B53_VLAN_PAGE, B53_VLAN_CTRL4_25, &vc4); |
| |
| /* check reserved bits */ |
| switch (vc4 & 3) { |
| case 1: |
| /* BCM5325E */ |
| break; |
| case 3: |
| /* BCM5325F - do not use port 4 */ |
| dev->enabled_ports &= ~BIT(4); |
| break; |
| default: |
| /* On the BCM47XX SoCs this is the supported internal switch.*/ |
| #ifndef CONFIG_BCM47XX |
| /* BCM5325M */ |
| return -EINVAL; |
| #else |
| break; |
| #endif |
| } |
| } else if (dev->chip_id == BCM53115_DEVICE_ID) { |
| u64 strap_value; |
| |
| b53_read48(dev, B53_STAT_PAGE, B53_STRAP_VALUE, &strap_value); |
| /* use second IMP port if GMII is enabled */ |
| if (strap_value & SV_GMII_CTRL_115) |
| dev->cpu_port = 5; |
| } |
| |
| /* cpu port is always last */ |
| dev->num_ports = dev->cpu_port + 1; |
| dev->enabled_ports |= BIT(dev->cpu_port); |
| |
| dev->ports = devm_kzalloc(dev->dev, |
| sizeof(struct b53_port) * dev->num_ports, |
| GFP_KERNEL); |
| if (!dev->ports) |
| return -ENOMEM; |
| |
| dev->vlans = devm_kzalloc(dev->dev, |
| sizeof(struct b53_vlan) * dev->num_vlans, |
| GFP_KERNEL); |
| if (!dev->vlans) |
| return -ENOMEM; |
| |
| dev->reset_gpio = b53_switch_get_reset_gpio(dev); |
| if (dev->reset_gpio >= 0) { |
| ret = devm_gpio_request_one(dev->dev, dev->reset_gpio, |
| GPIOF_OUT_INIT_HIGH, "robo_reset"); |
| if (ret) |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| struct b53_device *b53_switch_alloc(struct device *base, |
| const struct b53_io_ops *ops, |
| void *priv) |
| { |
| struct dsa_switch *ds; |
| struct b53_device *dev; |
| |
| ds = dsa_switch_alloc(base, DSA_MAX_PORTS); |
| if (!ds) |
| return NULL; |
| |
| dev = devm_kzalloc(base, sizeof(*dev), GFP_KERNEL); |
| if (!dev) |
| return NULL; |
| |
| ds->priv = dev; |
| dev->dev = base; |
| |
| dev->ds = ds; |
| dev->priv = priv; |
| dev->ops = ops; |
| ds->ops = &b53_switch_ops; |
| mutex_init(&dev->reg_mutex); |
| mutex_init(&dev->stats_mutex); |
| |
| return dev; |
| } |
| EXPORT_SYMBOL(b53_switch_alloc); |
| |
| int b53_switch_detect(struct b53_device *dev) |
| { |
| u32 id32; |
| u16 tmp; |
| u8 id8; |
| int ret; |
| |
| ret = b53_read8(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id8); |
| if (ret) |
| return ret; |
| |
| switch (id8) { |
| case 0: |
| /* BCM5325 and BCM5365 do not have this register so reads |
| * return 0. But the read operation did succeed, so assume this |
| * is one of them. |
| * |
| * Next check if we can write to the 5325's VTA register; for |
| * 5365 it is read only. |
| */ |
| b53_write16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, 0xf); |
| b53_read16(dev, B53_VLAN_PAGE, B53_VLAN_TABLE_ACCESS_25, &tmp); |
| |
| if (tmp == 0xf) |
| dev->chip_id = BCM5325_DEVICE_ID; |
| else |
| dev->chip_id = BCM5365_DEVICE_ID; |
| break; |
| case BCM5389_DEVICE_ID: |
| case BCM5395_DEVICE_ID: |
| case BCM5397_DEVICE_ID: |
| case BCM5398_DEVICE_ID: |
| dev->chip_id = id8; |
| break; |
| default: |
| ret = b53_read32(dev, B53_MGMT_PAGE, B53_DEVICE_ID, &id32); |
| if (ret) |
| return ret; |
| |
| switch (id32) { |
| case BCM53115_DEVICE_ID: |
| case BCM53125_DEVICE_ID: |
| case BCM53128_DEVICE_ID: |
| case BCM53010_DEVICE_ID: |
| case BCM53011_DEVICE_ID: |
| case BCM53012_DEVICE_ID: |
| case BCM53018_DEVICE_ID: |
| case BCM53019_DEVICE_ID: |
| dev->chip_id = id32; |
| break; |
| default: |
| pr_err("unsupported switch detected (BCM53%02x/BCM%x)\n", |
| id8, id32); |
| return -ENODEV; |
| } |
| } |
| |
| if (dev->chip_id == BCM5325_DEVICE_ID) |
| return b53_read8(dev, B53_STAT_PAGE, B53_REV_ID_25, |
| &dev->core_rev); |
| else |
| return b53_read8(dev, B53_MGMT_PAGE, B53_REV_ID, |
| &dev->core_rev); |
| } |
| EXPORT_SYMBOL(b53_switch_detect); |
| |
| int b53_switch_register(struct b53_device *dev) |
| { |
| int ret; |
| |
| if (dev->pdata) { |
| dev->chip_id = dev->pdata->chip_id; |
| dev->enabled_ports = dev->pdata->enabled_ports; |
| } |
| |
| if (!dev->chip_id && b53_switch_detect(dev)) |
| return -EINVAL; |
| |
| ret = b53_switch_init(dev); |
| if (ret) |
| return ret; |
| |
| pr_info("found switch: %s, rev %i\n", dev->name, dev->core_rev); |
| |
| return dsa_register_switch(dev->ds); |
| } |
| EXPORT_SYMBOL(b53_switch_register); |
| |
| MODULE_AUTHOR("Jonas Gorski <jogo@openwrt.org>"); |
| MODULE_DESCRIPTION("B53 switch library"); |
| MODULE_LICENSE("Dual BSD/GPL"); |