// SPDX-License-Identifier: (GPL-2.0 OR MIT) /* Copyright 2017 Microsemi Corporation * Copyright 2018-2019 NXP Semiconductors */ #include <linux/fsl/enetc_mdio.h> #include <soc/mscc/ocelot_sys.h> #include <soc/mscc/ocelot.h> #include <linux/iopoll.h> #include <linux/pci.h> #include "felix.h" /* TODO: should find a better place for these */ #define USXGMII_BMCR_RESET BIT(15) #define USXGMII_BMCR_AN_EN BIT(12) #define USXGMII_BMCR_RST_AN BIT(9) #define USXGMII_BMSR_LNKS(status) (((status) & GENMASK(2, 2)) >> 2) #define USXGMII_BMSR_AN_CMPL(status) (((status) & GENMASK(5, 5)) >> 5) #define USXGMII_ADVERTISE_LNKS(x) (((x) << 15) & BIT(15)) #define USXGMII_ADVERTISE_FDX BIT(12) #define USXGMII_ADVERTISE_SPEED(x) (((x) << 9) & GENMASK(11, 9)) #define USXGMII_LPA_LNKS(lpa) ((lpa) >> 15) #define USXGMII_LPA_DUPLEX(lpa) (((lpa) & GENMASK(12, 12)) >> 12) #define USXGMII_LPA_SPEED(lpa) (((lpa) & GENMASK(11, 9)) >> 9) enum usxgmii_speed { USXGMII_SPEED_10 = 0, USXGMII_SPEED_100 = 1, USXGMII_SPEED_1000 = 2, USXGMII_SPEED_2500 = 4, }; static const u32 vsc9959_ana_regmap[] = { REG(ANA_ADVLEARN, 0x0089a0), REG(ANA_VLANMASK, 0x0089a4), REG_RESERVED(ANA_PORT_B_DOMAIN), REG(ANA_ANAGEFIL, 0x0089ac), REG(ANA_ANEVENTS, 0x0089b0), REG(ANA_STORMLIMIT_BURST, 0x0089b4), REG(ANA_STORMLIMIT_CFG, 0x0089b8), REG(ANA_ISOLATED_PORTS, 0x0089c8), REG(ANA_COMMUNITY_PORTS, 0x0089cc), REG(ANA_AUTOAGE, 0x0089d0), REG(ANA_MACTOPTIONS, 0x0089d4), REG(ANA_LEARNDISC, 0x0089d8), REG(ANA_AGENCTRL, 0x0089dc), REG(ANA_MIRRORPORTS, 0x0089e0), REG(ANA_EMIRRORPORTS, 0x0089e4), REG(ANA_FLOODING, 0x0089e8), REG(ANA_FLOODING_IPMC, 0x008a08), REG(ANA_SFLOW_CFG, 0x008a0c), REG(ANA_PORT_MODE, 0x008a28), REG(ANA_CUT_THRU_CFG, 0x008a48), REG(ANA_PGID_PGID, 0x008400), REG(ANA_TABLES_ANMOVED, 0x007f1c), REG(ANA_TABLES_MACHDATA, 0x007f20), REG(ANA_TABLES_MACLDATA, 0x007f24), REG(ANA_TABLES_STREAMDATA, 0x007f28), REG(ANA_TABLES_MACACCESS, 0x007f2c), REG(ANA_TABLES_MACTINDX, 0x007f30), REG(ANA_TABLES_VLANACCESS, 0x007f34), REG(ANA_TABLES_VLANTIDX, 0x007f38), REG(ANA_TABLES_ISDXACCESS, 0x007f3c), REG(ANA_TABLES_ISDXTIDX, 0x007f40), REG(ANA_TABLES_ENTRYLIM, 0x007f00), REG(ANA_TABLES_PTP_ID_HIGH, 0x007f44), REG(ANA_TABLES_PTP_ID_LOW, 0x007f48), REG(ANA_TABLES_STREAMACCESS, 0x007f4c), REG(ANA_TABLES_STREAMTIDX, 0x007f50), REG(ANA_TABLES_SEQ_HISTORY, 0x007f54), REG(ANA_TABLES_SEQ_MASK, 0x007f58), REG(ANA_TABLES_SFID_MASK, 0x007f5c), REG(ANA_TABLES_SFIDACCESS, 0x007f60), REG(ANA_TABLES_SFIDTIDX, 0x007f64), REG(ANA_MSTI_STATE, 0x008600), REG(ANA_OAM_UPM_LM_CNT, 0x008000), REG(ANA_SG_ACCESS_CTRL, 0x008a64), REG(ANA_SG_CONFIG_REG_1, 0x007fb0), REG(ANA_SG_CONFIG_REG_2, 0x007fb4), REG(ANA_SG_CONFIG_REG_3, 0x007fb8), REG(ANA_SG_CONFIG_REG_4, 0x007fbc), REG(ANA_SG_CONFIG_REG_5, 0x007fc0), REG(ANA_SG_GCL_GS_CONFIG, 0x007f80), REG(ANA_SG_GCL_TI_CONFIG, 0x007f90), REG(ANA_SG_STATUS_REG_1, 0x008980), REG(ANA_SG_STATUS_REG_2, 0x008984), REG(ANA_SG_STATUS_REG_3, 0x008988), REG(ANA_PORT_VLAN_CFG, 0x007800), REG(ANA_PORT_DROP_CFG, 0x007804), REG(ANA_PORT_QOS_CFG, 0x007808), REG(ANA_PORT_VCAP_CFG, 0x00780c), REG(ANA_PORT_VCAP_S1_KEY_CFG, 0x007810), REG(ANA_PORT_VCAP_S2_CFG, 0x00781c), REG(ANA_PORT_PCP_DEI_MAP, 0x007820), REG(ANA_PORT_CPU_FWD_CFG, 0x007860), REG(ANA_PORT_CPU_FWD_BPDU_CFG, 0x007864), REG(ANA_PORT_CPU_FWD_GARP_CFG, 0x007868), REG(ANA_PORT_CPU_FWD_CCM_CFG, 0x00786c), REG(ANA_PORT_PORT_CFG, 0x007870), REG(ANA_PORT_POL_CFG, 0x007874), REG(ANA_PORT_PTP_CFG, 0x007878), REG(ANA_PORT_PTP_DLY1_CFG, 0x00787c), REG(ANA_PORT_PTP_DLY2_CFG, 0x007880), REG(ANA_PORT_SFID_CFG, 0x007884), REG(ANA_PFC_PFC_CFG, 0x008800), REG_RESERVED(ANA_PFC_PFC_TIMER), REG_RESERVED(ANA_IPT_OAM_MEP_CFG), REG_RESERVED(ANA_IPT_IPT), REG_RESERVED(ANA_PPT_PPT), REG_RESERVED(ANA_FID_MAP_FID_MAP), REG(ANA_AGGR_CFG, 0x008a68), REG(ANA_CPUQ_CFG, 0x008a6c), REG_RESERVED(ANA_CPUQ_CFG2), REG(ANA_CPUQ_8021_CFG, 0x008a74), REG(ANA_DSCP_CFG, 0x008ab4), REG(ANA_DSCP_REWR_CFG, 0x008bb4), REG(ANA_VCAP_RNG_TYPE_CFG, 0x008bf4), REG(ANA_VCAP_RNG_VAL_CFG, 0x008c14), REG_RESERVED(ANA_VRAP_CFG), REG_RESERVED(ANA_VRAP_HDR_DATA), REG_RESERVED(ANA_VRAP_HDR_MASK), REG(ANA_DISCARD_CFG, 0x008c40), REG(ANA_FID_CFG, 0x008c44), REG(ANA_POL_PIR_CFG, 0x004000), REG(ANA_POL_CIR_CFG, 0x004004), REG(ANA_POL_MODE_CFG, 0x004008), REG(ANA_POL_PIR_STATE, 0x00400c), REG(ANA_POL_CIR_STATE, 0x004010), REG_RESERVED(ANA_POL_STATE), REG(ANA_POL_FLOWC, 0x008c48), REG(ANA_POL_HYST, 0x008cb4), REG_RESERVED(ANA_POL_MISC_CFG), }; static const u32 vsc9959_qs_regmap[] = { REG(QS_XTR_GRP_CFG, 0x000000), REG(QS_XTR_RD, 0x000008), REG(QS_XTR_FRM_PRUNING, 0x000010), REG(QS_XTR_FLUSH, 0x000018), REG(QS_XTR_DATA_PRESENT, 0x00001c), REG(QS_XTR_CFG, 0x000020), REG(QS_INJ_GRP_CFG, 0x000024), REG(QS_INJ_WR, 0x00002c), REG(QS_INJ_CTRL, 0x000034), REG(QS_INJ_STATUS, 0x00003c), REG(QS_INJ_ERR, 0x000040), REG_RESERVED(QS_INH_DBG), }; static const u32 vsc9959_s2_regmap[] = { REG(S2_CORE_UPDATE_CTRL, 0x000000), REG(S2_CORE_MV_CFG, 0x000004), REG(S2_CACHE_ENTRY_DAT, 0x000008), REG(S2_CACHE_MASK_DAT, 0x000108), REG(S2_CACHE_ACTION_DAT, 0x000208), REG(S2_CACHE_CNT_DAT, 0x000308), REG(S2_CACHE_TG_DAT, 0x000388), }; static const u32 vsc9959_qsys_regmap[] = { REG(QSYS_PORT_MODE, 0x00f460), REG(QSYS_SWITCH_PORT_MODE, 0x00f480), REG(QSYS_STAT_CNT_CFG, 0x00f49c), REG(QSYS_EEE_CFG, 0x00f4a0), REG(QSYS_EEE_THRES, 0x00f4b8), REG(QSYS_IGR_NO_SHARING, 0x00f4bc), REG(QSYS_EGR_NO_SHARING, 0x00f4c0), REG(QSYS_SW_STATUS, 0x00f4c4), REG(QSYS_EXT_CPU_CFG, 0x00f4e0), REG_RESERVED(QSYS_PAD_CFG), REG(QSYS_CPU_GROUP_MAP, 0x00f4e8), REG_RESERVED(QSYS_QMAP), REG_RESERVED(QSYS_ISDX_SGRP), REG_RESERVED(QSYS_TIMED_FRAME_ENTRY), REG(QSYS_TFRM_MISC, 0x00f50c), REG(QSYS_TFRM_PORT_DLY, 0x00f510), REG(QSYS_TFRM_TIMER_CFG_1, 0x00f514), REG(QSYS_TFRM_TIMER_CFG_2, 0x00f518), REG(QSYS_TFRM_TIMER_CFG_3, 0x00f51c), REG(QSYS_TFRM_TIMER_CFG_4, 0x00f520), REG(QSYS_TFRM_TIMER_CFG_5, 0x00f524), REG(QSYS_TFRM_TIMER_CFG_6, 0x00f528), REG(QSYS_TFRM_TIMER_CFG_7, 0x00f52c), REG(QSYS_TFRM_TIMER_CFG_8, 0x00f530), REG(QSYS_RED_PROFILE, 0x00f534), REG(QSYS_RES_QOS_MODE, 0x00f574), REG(QSYS_RES_CFG, 0x00c000), REG(QSYS_RES_STAT, 0x00c004), REG(QSYS_EGR_DROP_MODE, 0x00f578), REG(QSYS_EQ_CTRL, 0x00f57c), REG_RESERVED(QSYS_EVENTS_CORE), REG(QSYS_QMAXSDU_CFG_0, 0x00f584), REG(QSYS_QMAXSDU_CFG_1, 0x00f5a0), REG(QSYS_QMAXSDU_CFG_2, 0x00f5bc), REG(QSYS_QMAXSDU_CFG_3, 0x00f5d8), REG(QSYS_QMAXSDU_CFG_4, 0x00f5f4), REG(QSYS_QMAXSDU_CFG_5, 0x00f610), REG(QSYS_QMAXSDU_CFG_6, 0x00f62c), REG(QSYS_QMAXSDU_CFG_7, 0x00f648), REG(QSYS_PREEMPTION_CFG, 0x00f664), REG_RESERVED(QSYS_CIR_CFG), REG(QSYS_EIR_CFG, 0x000004), REG(QSYS_SE_CFG, 0x000008), REG(QSYS_SE_DWRR_CFG, 0x00000c), REG_RESERVED(QSYS_SE_CONNECT), REG(QSYS_SE_DLB_SENSE, 0x000040), REG(QSYS_CIR_STATE, 0x000044), REG(QSYS_EIR_STATE, 0x000048), REG_RESERVED(QSYS_SE_STATE), REG(QSYS_HSCH_MISC_CFG, 0x00f67c), REG(QSYS_TAG_CONFIG, 0x00f680), REG(QSYS_TAS_PARAM_CFG_CTRL, 0x00f698), REG(QSYS_PORT_MAX_SDU, 0x00f69c), REG(QSYS_PARAM_CFG_REG_1, 0x00f440), REG(QSYS_PARAM_CFG_REG_2, 0x00f444), REG(QSYS_PARAM_CFG_REG_3, 0x00f448), REG(QSYS_PARAM_CFG_REG_4, 0x00f44c), REG(QSYS_PARAM_CFG_REG_5, 0x00f450), REG(QSYS_GCL_CFG_REG_1, 0x00f454), REG(QSYS_GCL_CFG_REG_2, 0x00f458), REG(QSYS_PARAM_STATUS_REG_1, 0x00f400), REG(QSYS_PARAM_STATUS_REG_2, 0x00f404), REG(QSYS_PARAM_STATUS_REG_3, 0x00f408), REG(QSYS_PARAM_STATUS_REG_4, 0x00f40c), REG(QSYS_PARAM_STATUS_REG_5, 0x00f410), REG(QSYS_PARAM_STATUS_REG_6, 0x00f414), REG(QSYS_PARAM_STATUS_REG_7, 0x00f418), REG(QSYS_PARAM_STATUS_REG_8, 0x00f41c), REG(QSYS_PARAM_STATUS_REG_9, 0x00f420), REG(QSYS_GCL_STATUS_REG_1, 0x00f424), REG(QSYS_GCL_STATUS_REG_2, 0x00f428), }; static const u32 vsc9959_rew_regmap[] = { REG(REW_PORT_VLAN_CFG, 0x000000), REG(REW_TAG_CFG, 0x000004), REG(REW_PORT_CFG, 0x000008), REG(REW_DSCP_CFG, 0x00000c), REG(REW_PCP_DEI_QOS_MAP_CFG, 0x000010), REG(REW_PTP_CFG, 0x000050), REG(REW_PTP_DLY1_CFG, 0x000054), REG(REW_RED_TAG_CFG, 0x000058), REG(REW_DSCP_REMAP_DP1_CFG, 0x000410), REG(REW_DSCP_REMAP_CFG, 0x000510), REG_RESERVED(REW_STAT_CFG), REG_RESERVED(REW_REW_STICKY), REG_RESERVED(REW_PPT), }; static const u32 vsc9959_sys_regmap[] = { REG(SYS_COUNT_RX_OCTETS, 0x000000), REG(SYS_COUNT_RX_MULTICAST, 0x000008), REG(SYS_COUNT_RX_SHORTS, 0x000010), REG(SYS_COUNT_RX_FRAGMENTS, 0x000014), REG(SYS_COUNT_RX_JABBERS, 0x000018), REG(SYS_COUNT_RX_64, 0x000024), REG(SYS_COUNT_RX_65_127, 0x000028), REG(SYS_COUNT_RX_128_255, 0x00002c), REG(SYS_COUNT_RX_256_1023, 0x000030), REG(SYS_COUNT_RX_1024_1526, 0x000034), REG(SYS_COUNT_RX_1527_MAX, 0x000038), REG(SYS_COUNT_RX_LONGS, 0x000044), REG(SYS_COUNT_TX_OCTETS, 0x000200), REG(SYS_COUNT_TX_COLLISION, 0x000210), REG(SYS_COUNT_TX_DROPS, 0x000214), REG(SYS_COUNT_TX_64, 0x00021c), REG(SYS_COUNT_TX_65_127, 0x000220), REG(SYS_COUNT_TX_128_511, 0x000224), REG(SYS_COUNT_TX_512_1023, 0x000228), REG(SYS_COUNT_TX_1024_1526, 0x00022c), REG(SYS_COUNT_TX_1527_MAX, 0x000230), REG(SYS_COUNT_TX_AGING, 0x000278), REG(SYS_RESET_CFG, 0x000e00), REG(SYS_SR_ETYPE_CFG, 0x000e04), REG(SYS_VLAN_ETYPE_CFG, 0x000e08), REG(SYS_PORT_MODE, 0x000e0c), REG(SYS_FRONT_PORT_MODE, 0x000e2c), REG(SYS_FRM_AGING, 0x000e44), REG(SYS_STAT_CFG, 0x000e48), REG(SYS_SW_STATUS, 0x000e4c), REG_RESERVED(SYS_MISC_CFG), REG(SYS_REW_MAC_HIGH_CFG, 0x000e6c), REG(SYS_REW_MAC_LOW_CFG, 0x000e84), REG(SYS_TIMESTAMP_OFFSET, 0x000e9c), REG(SYS_PAUSE_CFG, 0x000ea0), REG(SYS_PAUSE_TOT_CFG, 0x000ebc), REG(SYS_ATOP, 0x000ec0), REG(SYS_ATOP_TOT_CFG, 0x000edc), REG(SYS_MAC_FC_CFG, 0x000ee0), REG(SYS_MMGT, 0x000ef8), REG_RESERVED(SYS_MMGT_FAST), REG_RESERVED(SYS_EVENTS_DIF), REG_RESERVED(SYS_EVENTS_CORE), REG_RESERVED(SYS_CNT), REG(SYS_PTP_STATUS, 0x000f14), REG(SYS_PTP_TXSTAMP, 0x000f18), REG(SYS_PTP_NXT, 0x000f1c), REG(SYS_PTP_CFG, 0x000f20), REG(SYS_RAM_INIT, 0x000f24), REG_RESERVED(SYS_CM_ADDR), REG_RESERVED(SYS_CM_DATA_WR), REG_RESERVED(SYS_CM_DATA_RD), REG_RESERVED(SYS_CM_OP), REG_RESERVED(SYS_CM_DATA), }; static const u32 vsc9959_ptp_regmap[] = { REG(PTP_PIN_CFG, 0x000000), REG(PTP_PIN_TOD_SEC_MSB, 0x000004), REG(PTP_PIN_TOD_SEC_LSB, 0x000008), REG(PTP_PIN_TOD_NSEC, 0x00000c), REG(PTP_CFG_MISC, 0x0000a0), REG(PTP_CLK_CFG_ADJ_CFG, 0x0000a4), REG(PTP_CLK_CFG_ADJ_FREQ, 0x0000a8), }; static const u32 vsc9959_gcb_regmap[] = { REG(GCB_SOFT_RST, 0x000004), }; static const u32 *vsc9959_regmap[] = { [ANA] = vsc9959_ana_regmap, [QS] = vsc9959_qs_regmap, [QSYS] = vsc9959_qsys_regmap, [REW] = vsc9959_rew_regmap, [SYS] = vsc9959_sys_regmap, [S2] = vsc9959_s2_regmap, [PTP] = vsc9959_ptp_regmap, [GCB] = vsc9959_gcb_regmap, }; /* Addresses are relative to the PCI device's base address and * will be fixed up at ioremap time. */ static struct resource vsc9959_target_io_res[] = { [ANA] = { .start = 0x0280000, .end = 0x028ffff, .name = "ana", }, [QS] = { .start = 0x0080000, .end = 0x00800ff, .name = "qs", }, [QSYS] = { .start = 0x0200000, .end = 0x021ffff, .name = "qsys", }, [REW] = { .start = 0x0030000, .end = 0x003ffff, .name = "rew", }, [SYS] = { .start = 0x0010000, .end = 0x001ffff, .name = "sys", }, [S2] = { .start = 0x0060000, .end = 0x00603ff, .name = "s2", }, [PTP] = { .start = 0x0090000, .end = 0x00900cb, .name = "ptp", }, [GCB] = { .start = 0x0070000, .end = 0x00701ff, .name = "devcpu_gcb", }, }; static struct resource vsc9959_port_io_res[] = { { .start = 0x0100000, .end = 0x010ffff, .name = "port0", }, { .start = 0x0110000, .end = 0x011ffff, .name = "port1", }, { .start = 0x0120000, .end = 0x012ffff, .name = "port2", }, { .start = 0x0130000, .end = 0x013ffff, .name = "port3", }, { .start = 0x0140000, .end = 0x014ffff, .name = "port4", }, { .start = 0x0150000, .end = 0x015ffff, .name = "port5", }, }; /* Port MAC 0 Internal MDIO bus through which the SerDes acting as an * SGMII/QSGMII MAC PCS can be found. */ static struct resource vsc9959_imdio_res = { .start = 0x8030, .end = 0x8040, .name = "imdio", }; static const struct reg_field vsc9959_regfields[] = { [ANA_ADVLEARN_VLAN_CHK] = REG_FIELD(ANA_ADVLEARN, 6, 6), [ANA_ADVLEARN_LEARN_MIRROR] = REG_FIELD(ANA_ADVLEARN, 0, 5), [ANA_ANEVENTS_FLOOD_DISCARD] = REG_FIELD(ANA_ANEVENTS, 30, 30), [ANA_ANEVENTS_AUTOAGE] = REG_FIELD(ANA_ANEVENTS, 26, 26), [ANA_ANEVENTS_STORM_DROP] = REG_FIELD(ANA_ANEVENTS, 24, 24), [ANA_ANEVENTS_LEARN_DROP] = REG_FIELD(ANA_ANEVENTS, 23, 23), [ANA_ANEVENTS_AGED_ENTRY] = REG_FIELD(ANA_ANEVENTS, 22, 22), [ANA_ANEVENTS_CPU_LEARN_FAILED] = REG_FIELD(ANA_ANEVENTS, 21, 21), [ANA_ANEVENTS_AUTO_LEARN_FAILED] = REG_FIELD(ANA_ANEVENTS, 20, 20), [ANA_ANEVENTS_LEARN_REMOVE] = REG_FIELD(ANA_ANEVENTS, 19, 19), [ANA_ANEVENTS_AUTO_LEARNED] = REG_FIELD(ANA_ANEVENTS, 18, 18), [ANA_ANEVENTS_AUTO_MOVED] = REG_FIELD(ANA_ANEVENTS, 17, 17), [ANA_ANEVENTS_CLASSIFIED_DROP] = REG_FIELD(ANA_ANEVENTS, 15, 15), [ANA_ANEVENTS_CLASSIFIED_COPY] = REG_FIELD(ANA_ANEVENTS, 14, 14), [ANA_ANEVENTS_VLAN_DISCARD] = REG_FIELD(ANA_ANEVENTS, 13, 13), [ANA_ANEVENTS_FWD_DISCARD] = REG_FIELD(ANA_ANEVENTS, 12, 12), [ANA_ANEVENTS_MULTICAST_FLOOD] = REG_FIELD(ANA_ANEVENTS, 11, 11), [ANA_ANEVENTS_UNICAST_FLOOD] = REG_FIELD(ANA_ANEVENTS, 10, 10), [ANA_ANEVENTS_DEST_KNOWN] = REG_FIELD(ANA_ANEVENTS, 9, 9), [ANA_ANEVENTS_BUCKET3_MATCH] = REG_FIELD(ANA_ANEVENTS, 8, 8), [ANA_ANEVENTS_BUCKET2_MATCH] = REG_FIELD(ANA_ANEVENTS, 7, 7), [ANA_ANEVENTS_BUCKET1_MATCH] = REG_FIELD(ANA_ANEVENTS, 6, 6), [ANA_ANEVENTS_BUCKET0_MATCH] = REG_FIELD(ANA_ANEVENTS, 5, 5), [ANA_ANEVENTS_CPU_OPERATION] = REG_FIELD(ANA_ANEVENTS, 4, 4), [ANA_ANEVENTS_DMAC_LOOKUP] = REG_FIELD(ANA_ANEVENTS, 3, 3), [ANA_ANEVENTS_SMAC_LOOKUP] = REG_FIELD(ANA_ANEVENTS, 2, 2), [ANA_ANEVENTS_SEQ_GEN_ERR_0] = REG_FIELD(ANA_ANEVENTS, 1, 1), [ANA_ANEVENTS_SEQ_GEN_ERR_1] = REG_FIELD(ANA_ANEVENTS, 0, 0), [ANA_TABLES_MACACCESS_B_DOM] = REG_FIELD(ANA_TABLES_MACACCESS, 16, 16), [ANA_TABLES_MACTINDX_BUCKET] = REG_FIELD(ANA_TABLES_MACTINDX, 11, 12), [ANA_TABLES_MACTINDX_M_INDEX] = REG_FIELD(ANA_TABLES_MACTINDX, 0, 10), [SYS_RESET_CFG_CORE_ENA] = REG_FIELD(SYS_RESET_CFG, 0, 0), [GCB_SOFT_RST_SWC_RST] = REG_FIELD(GCB_SOFT_RST, 0, 0), }; static const struct ocelot_stat_layout vsc9959_stats_layout[] = { { .offset = 0x00, .name = "rx_octets", }, { .offset = 0x01, .name = "rx_unicast", }, { .offset = 0x02, .name = "rx_multicast", }, { .offset = 0x03, .name = "rx_broadcast", }, { .offset = 0x04, .name = "rx_shorts", }, { .offset = 0x05, .name = "rx_fragments", }, { .offset = 0x06, .name = "rx_jabbers", }, { .offset = 0x07, .name = "rx_crc_align_errs", }, { .offset = 0x08, .name = "rx_sym_errs", }, { .offset = 0x09, .name = "rx_frames_below_65_octets", }, { .offset = 0x0A, .name = "rx_frames_65_to_127_octets", }, { .offset = 0x0B, .name = "rx_frames_128_to_255_octets", }, { .offset = 0x0C, .name = "rx_frames_256_to_511_octets", }, { .offset = 0x0D, .name = "rx_frames_512_to_1023_octets", }, { .offset = 0x0E, .name = "rx_frames_1024_to_1526_octets", }, { .offset = 0x0F, .name = "rx_frames_over_1526_octets", }, { .offset = 0x10, .name = "rx_pause", }, { .offset = 0x11, .name = "rx_control", }, { .offset = 0x12, .name = "rx_longs", }, { .offset = 0x13, .name = "rx_classified_drops", }, { .offset = 0x14, .name = "rx_red_prio_0", }, { .offset = 0x15, .name = "rx_red_prio_1", }, { .offset = 0x16, .name = "rx_red_prio_2", }, { .offset = 0x17, .name = "rx_red_prio_3", }, { .offset = 0x18, .name = "rx_red_prio_4", }, { .offset = 0x19, .name = "rx_red_prio_5", }, { .offset = 0x1A, .name = "rx_red_prio_6", }, { .offset = 0x1B, .name = "rx_red_prio_7", }, { .offset = 0x1C, .name = "rx_yellow_prio_0", }, { .offset = 0x1D, .name = "rx_yellow_prio_1", }, { .offset = 0x1E, .name = "rx_yellow_prio_2", }, { .offset = 0x1F, .name = "rx_yellow_prio_3", }, { .offset = 0x20, .name = "rx_yellow_prio_4", }, { .offset = 0x21, .name = "rx_yellow_prio_5", }, { .offset = 0x22, .name = "rx_yellow_prio_6", }, { .offset = 0x23, .name = "rx_yellow_prio_7", }, { .offset = 0x24, .name = "rx_green_prio_0", }, { .offset = 0x25, .name = "rx_green_prio_1", }, { .offset = 0x26, .name = "rx_green_prio_2", }, { .offset = 0x27, .name = "rx_green_prio_3", }, { .offset = 0x28, .name = "rx_green_prio_4", }, { .offset = 0x29, .name = "rx_green_prio_5", }, { .offset = 0x2A, .name = "rx_green_prio_6", }, { .offset = 0x2B, .name = "rx_green_prio_7", }, { .offset = 0x80, .name = "tx_octets", }, { .offset = 0x81, .name = "tx_unicast", }, { .offset = 0x82, .name = "tx_multicast", }, { .offset = 0x83, .name = "tx_broadcast", }, { .offset = 0x84, .name = "tx_collision", }, { .offset = 0x85, .name = "tx_drops", }, { .offset = 0x86, .name = "tx_pause", }, { .offset = 0x87, .name = "tx_frames_below_65_octets", }, { .offset = 0x88, .name = "tx_frames_65_to_127_octets", }, { .offset = 0x89, .name = "tx_frames_128_255_octets", }, { .offset = 0x8B, .name = "tx_frames_256_511_octets", }, { .offset = 0x8C, .name = "tx_frames_1024_1526_octets", }, { .offset = 0x8D, .name = "tx_frames_over_1526_octets", }, { .offset = 0x8E, .name = "tx_yellow_prio_0", }, { .offset = 0x8F, .name = "tx_yellow_prio_1", }, { .offset = 0x90, .name = "tx_yellow_prio_2", }, { .offset = 0x91, .name = "tx_yellow_prio_3", }, { .offset = 0x92, .name = "tx_yellow_prio_4", }, { .offset = 0x93, .name = "tx_yellow_prio_5", }, { .offset = 0x94, .name = "tx_yellow_prio_6", }, { .offset = 0x95, .name = "tx_yellow_prio_7", }, { .offset = 0x96, .name = "tx_green_prio_0", }, { .offset = 0x97, .name = "tx_green_prio_1", }, { .offset = 0x98, .name = "tx_green_prio_2", }, { .offset = 0x99, .name = "tx_green_prio_3", }, { .offset = 0x9A, .name = "tx_green_prio_4", }, { .offset = 0x9B, .name = "tx_green_prio_5", }, { .offset = 0x9C, .name = "tx_green_prio_6", }, { .offset = 0x9D, .name = "tx_green_prio_7", }, { .offset = 0x9E, .name = "tx_aged", }, { .offset = 0x100, .name = "drop_local", }, { .offset = 0x101, .name = "drop_tail", }, { .offset = 0x102, .name = "drop_yellow_prio_0", }, { .offset = 0x103, .name = "drop_yellow_prio_1", }, { .offset = 0x104, .name = "drop_yellow_prio_2", }, { .offset = 0x105, .name = "drop_yellow_prio_3", }, { .offset = 0x106, .name = "drop_yellow_prio_4", }, { .offset = 0x107, .name = "drop_yellow_prio_5", }, { .offset = 0x108, .name = "drop_yellow_prio_6", }, { .offset = 0x109, .name = "drop_yellow_prio_7", }, { .offset = 0x10A, .name = "drop_green_prio_0", }, { .offset = 0x10B, .name = "drop_green_prio_1", }, { .offset = 0x10C, .name = "drop_green_prio_2", }, { .offset = 0x10D, .name = "drop_green_prio_3", }, { .offset = 0x10E, .name = "drop_green_prio_4", }, { .offset = 0x10F, .name = "drop_green_prio_5", }, { .offset = 0x110, .name = "drop_green_prio_6", }, { .offset = 0x111, .name = "drop_green_prio_7", }, }; #define VSC9959_INIT_TIMEOUT 50000 #define VSC9959_GCB_RST_SLEEP 100 #define VSC9959_SYS_RAMINIT_SLEEP 80 static int vsc9959_gcb_soft_rst_status(struct ocelot *ocelot) { int val; regmap_field_read(ocelot->regfields[GCB_SOFT_RST_SWC_RST], &val); return val; } static int vsc9959_sys_ram_init_status(struct ocelot *ocelot) { return ocelot_read(ocelot, SYS_RAM_INIT); } static int vsc9959_reset(struct ocelot *ocelot) { int val, err; /* soft-reset the switch core */ regmap_field_write(ocelot->regfields[GCB_SOFT_RST_SWC_RST], 1); err = readx_poll_timeout(vsc9959_gcb_soft_rst_status, ocelot, val, !val, VSC9959_GCB_RST_SLEEP, VSC9959_INIT_TIMEOUT); if (err) { dev_err(ocelot->dev, "timeout: switch core reset\n"); return err; } /* initialize switch mem ~40us */ ocelot_write(ocelot, SYS_RAM_INIT_RAM_INIT, SYS_RAM_INIT); err = readx_poll_timeout(vsc9959_sys_ram_init_status, ocelot, val, !val, VSC9959_SYS_RAMINIT_SLEEP, VSC9959_INIT_TIMEOUT); if (err) { dev_err(ocelot->dev, "timeout: switch sram init\n"); return err; } /* enable switch core */ regmap_field_write(ocelot->regfields[SYS_RESET_CFG_CORE_ENA], 1); return 0; } static void vsc9959_pcs_an_restart_sgmii(struct phy_device *pcs) { phy_set_bits(pcs, MII_BMCR, BMCR_ANRESTART); } static void vsc9959_pcs_an_restart_usxgmii(struct phy_device *pcs) { phy_write_mmd(pcs, MDIO_MMD_VEND2, MII_BMCR, USXGMII_BMCR_RESET | USXGMII_BMCR_AN_EN | USXGMII_BMCR_RST_AN); } static void vsc9959_pcs_an_restart(struct ocelot *ocelot, int port) { struct felix *felix = ocelot_to_felix(ocelot); struct phy_device *pcs = felix->pcs[port]; if (!pcs) return; switch (pcs->interface) { case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_QSGMII: vsc9959_pcs_an_restart_sgmii(pcs); break; case PHY_INTERFACE_MODE_USXGMII: vsc9959_pcs_an_restart_usxgmii(pcs); break; default: dev_err(ocelot->dev, "Invalid PCS interface type %s\n", phy_modes(pcs->interface)); break; } } /* We enable SGMII AN only when the PHY has managed = "in-band-status" in the * device tree. If we are in MLO_AN_PHY mode, we program directly state->speed * into the PCS, which is retrieved out-of-band over MDIO. This also has the * benefit of working with SGMII fixed-links, like downstream switches, where * both link partners attempt to operate as AN slaves and therefore AN never * completes. But it also has the disadvantage that some PHY chips don't pass * traffic if SGMII AN is enabled but not completed (acknowledged by us), so * setting MLO_AN_INBAND is actually required for those. */ static void vsc9959_pcs_init_sgmii(struct phy_device *pcs, unsigned int link_an_mode, const struct phylink_link_state *state) { if (link_an_mode == MLO_AN_INBAND) { int bmsr, bmcr; /* Some PHYs like VSC8234 don't like it when AN restarts on * their system side and they restart line side AN too, going * into an endless link up/down loop. Don't restart PCS AN if * link is up already. * We do check that AN is enabled just in case this is the 1st * call, PCS detects a carrier but AN is disabled from power on * or by boot loader. */ bmcr = phy_read(pcs, MII_BMCR); if (bmcr < 0) return; bmsr = phy_read(pcs, MII_BMSR); if (bmsr < 0) return; if ((bmcr & BMCR_ANENABLE) && (bmsr & BMSR_LSTATUS)) return; /* SGMII spec requires tx_config_Reg[15:0] to be exactly 0x4001 * for the MAC PCS in order to acknowledge the AN. */ phy_write(pcs, MII_ADVERTISE, ADVERTISE_SGMII | ADVERTISE_LPACK); phy_write(pcs, ENETC_PCS_IF_MODE, ENETC_PCS_IF_MODE_SGMII_EN | ENETC_PCS_IF_MODE_USE_SGMII_AN); /* Adjust link timer for SGMII */ phy_write(pcs, ENETC_PCS_LINK_TIMER1, ENETC_PCS_LINK_TIMER1_VAL); phy_write(pcs, ENETC_PCS_LINK_TIMER2, ENETC_PCS_LINK_TIMER2_VAL); phy_write(pcs, MII_BMCR, BMCR_ANRESTART | BMCR_ANENABLE); } else { int speed; if (state->duplex == DUPLEX_HALF) { phydev_err(pcs, "Half duplex not supported\n"); return; } switch (state->speed) { case SPEED_1000: speed = ENETC_PCS_SPEED_1000; break; case SPEED_100: speed = ENETC_PCS_SPEED_100; break; case SPEED_10: speed = ENETC_PCS_SPEED_10; break; case SPEED_UNKNOWN: /* Silently don't do anything */ return; default: phydev_err(pcs, "Invalid PCS speed %d\n", state->speed); return; } phy_write(pcs, ENETC_PCS_IF_MODE, ENETC_PCS_IF_MODE_SGMII_EN | ENETC_PCS_IF_MODE_SGMII_SPEED(speed)); /* Yes, not a mistake: speed is given by IF_MODE. */ phy_write(pcs, MII_BMCR, BMCR_RESET | BMCR_SPEED1000 | BMCR_FULLDPLX); } } /* 2500Base-X is SerDes protocol 7 on Felix and 6 on ENETC. It is a SerDes lane * clocked at 3.125 GHz which encodes symbols with 8b/10b and does not have * auto-negotiation of any link parameters. Electrically it is compatible with * a single lane of XAUI. * The hardware reference manual wants to call this mode SGMII, but it isn't * really, since the fundamental features of SGMII: * - Downgrading the link speed by duplicating symbols * - Auto-negotiation * are not there. * The speed is configured at 1000 in the IF_MODE and BMCR MDIO registers * because the clock frequency is actually given by a PLL configured in the * Reset Configuration Word (RCW). * Since there is no difference between fixed speed SGMII w/o AN and 802.3z w/o * AN, we call this PHY interface type 2500Base-X. In case a PHY negotiates a * lower link speed on line side, the system-side interface remains fixed at * 2500 Mbps and we do rate adaptation through pause frames. */ static void vsc9959_pcs_init_2500basex(struct phy_device *pcs, unsigned int link_an_mode, const struct phylink_link_state *state) { if (link_an_mode == MLO_AN_INBAND) { phydev_err(pcs, "AN not supported on 3.125GHz SerDes lane\n"); return; } phy_write(pcs, ENETC_PCS_IF_MODE, ENETC_PCS_IF_MODE_SGMII_EN | ENETC_PCS_IF_MODE_SGMII_SPEED(ENETC_PCS_SPEED_2500)); phy_write(pcs, MII_BMCR, BMCR_SPEED1000 | BMCR_FULLDPLX | BMCR_RESET); } static void vsc9959_pcs_init_usxgmii(struct phy_device *pcs, unsigned int link_an_mode, const struct phylink_link_state *state) { if (link_an_mode != MLO_AN_INBAND) { phydev_err(pcs, "USXGMII only supports in-band AN for now\n"); return; } /* Configure device ability for the USXGMII Replicator */ phy_write_mmd(pcs, MDIO_MMD_VEND2, MII_ADVERTISE, USXGMII_ADVERTISE_SPEED(USXGMII_SPEED_2500) | USXGMII_ADVERTISE_LNKS(1) | ADVERTISE_SGMII | ADVERTISE_LPACK | USXGMII_ADVERTISE_FDX); } static void vsc9959_pcs_init(struct ocelot *ocelot, int port, unsigned int link_an_mode, const struct phylink_link_state *state) { struct felix *felix = ocelot_to_felix(ocelot); struct phy_device *pcs = felix->pcs[port]; if (!pcs) return; /* The PCS does not implement the BMSR register fully, so capability * detection via genphy_read_abilities does not work. Since we can get * the PHY config word from the LPA register though, there is still * value in using the generic phy_resolve_aneg_linkmode function. So * populate the supported and advertising link modes manually here. */ linkmode_set_bit_array(phy_basic_ports_array, ARRAY_SIZE(phy_basic_ports_array), pcs->supported); linkmode_set_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, pcs->supported); linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, pcs->supported); linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, pcs->supported); if (pcs->interface == PHY_INTERFACE_MODE_2500BASEX || pcs->interface == PHY_INTERFACE_MODE_USXGMII) linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT, pcs->supported); if (pcs->interface != PHY_INTERFACE_MODE_2500BASEX) linkmode_set_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, pcs->supported); phy_advertise_supported(pcs); switch (pcs->interface) { case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_QSGMII: vsc9959_pcs_init_sgmii(pcs, link_an_mode, state); break; case PHY_INTERFACE_MODE_2500BASEX: vsc9959_pcs_init_2500basex(pcs, link_an_mode, state); break; case PHY_INTERFACE_MODE_USXGMII: vsc9959_pcs_init_usxgmii(pcs, link_an_mode, state); break; default: dev_err(ocelot->dev, "Unsupported link mode %s\n", phy_modes(pcs->interface)); } } static void vsc9959_pcs_link_state_resolve(struct phy_device *pcs, struct phylink_link_state *state) { state->an_complete = pcs->autoneg_complete; state->an_enabled = pcs->autoneg; state->link = pcs->link; state->duplex = pcs->duplex; state->speed = pcs->speed; /* SGMII AN does not negotiate flow control, but that's ok, * since phylink already knows that, and does: * link_state.pause |= pl->phy_state.pause; */ state->pause = MLO_PAUSE_NONE; phydev_dbg(pcs, "mode=%s/%s/%s adv=%*pb lpa=%*pb link=%u an_enabled=%u an_complete=%u\n", phy_modes(pcs->interface), phy_speed_to_str(pcs->speed), phy_duplex_to_str(pcs->duplex), __ETHTOOL_LINK_MODE_MASK_NBITS, pcs->advertising, __ETHTOOL_LINK_MODE_MASK_NBITS, pcs->lp_advertising, pcs->link, pcs->autoneg, pcs->autoneg_complete); } static void vsc9959_pcs_link_state_sgmii(struct phy_device *pcs, struct phylink_link_state *state) { int err; err = genphy_update_link(pcs); if (err < 0) return; if (pcs->autoneg_complete) { u16 lpa = phy_read(pcs, MII_LPA); mii_lpa_to_linkmode_lpa_sgmii(pcs->lp_advertising, lpa); phy_resolve_aneg_linkmode(pcs); } } static void vsc9959_pcs_link_state_2500basex(struct phy_device *pcs, struct phylink_link_state *state) { int err; err = genphy_update_link(pcs); if (err < 0) return; pcs->speed = SPEED_2500; pcs->asym_pause = true; pcs->pause = true; } static void vsc9959_pcs_link_state_usxgmii(struct phy_device *pcs, struct phylink_link_state *state) { int status, lpa; status = phy_read_mmd(pcs, MDIO_MMD_VEND2, MII_BMSR); if (status < 0) return; pcs->autoneg = true; pcs->autoneg_complete = USXGMII_BMSR_AN_CMPL(status); pcs->link = USXGMII_BMSR_LNKS(status); if (!pcs->link || !pcs->autoneg_complete) return; lpa = phy_read_mmd(pcs, MDIO_MMD_VEND2, MII_LPA); if (lpa < 0) return; switch (USXGMII_LPA_SPEED(lpa)) { case USXGMII_SPEED_10: pcs->speed = SPEED_10; break; case USXGMII_SPEED_100: pcs->speed = SPEED_100; break; case USXGMII_SPEED_1000: pcs->speed = SPEED_1000; break; case USXGMII_SPEED_2500: pcs->speed = SPEED_2500; break; default: break; } if (USXGMII_LPA_DUPLEX(lpa)) pcs->duplex = DUPLEX_FULL; else pcs->duplex = DUPLEX_HALF; } static void vsc9959_pcs_link_state(struct ocelot *ocelot, int port, struct phylink_link_state *state) { struct felix *felix = ocelot_to_felix(ocelot); struct phy_device *pcs = felix->pcs[port]; if (!pcs) return; pcs->speed = SPEED_UNKNOWN; pcs->duplex = DUPLEX_UNKNOWN; pcs->pause = 0; pcs->asym_pause = 0; switch (pcs->interface) { case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_QSGMII: vsc9959_pcs_link_state_sgmii(pcs, state); break; case PHY_INTERFACE_MODE_2500BASEX: vsc9959_pcs_link_state_2500basex(pcs, state); break; case PHY_INTERFACE_MODE_USXGMII: vsc9959_pcs_link_state_usxgmii(pcs, state); break; default: return; } vsc9959_pcs_link_state_resolve(pcs, state); } static int vsc9959_prevalidate_phy_mode(struct ocelot *ocelot, int port, phy_interface_t phy_mode) { switch (phy_mode) { case PHY_INTERFACE_MODE_GMII: /* Only supported on internal to-CPU ports */ if (port != 4 && port != 5) return -ENOTSUPP; return 0; case PHY_INTERFACE_MODE_SGMII: case PHY_INTERFACE_MODE_QSGMII: case PHY_INTERFACE_MODE_USXGMII: case PHY_INTERFACE_MODE_2500BASEX: /* Not supported on internal to-CPU ports */ if (port == 4 || port == 5) return -ENOTSUPP; return 0; default: return -ENOTSUPP; } } static const struct ocelot_ops vsc9959_ops = { .reset = vsc9959_reset, }; static int vsc9959_mdio_bus_alloc(struct ocelot *ocelot) { struct felix *felix = ocelot_to_felix(ocelot); struct enetc_mdio_priv *mdio_priv; struct device *dev = ocelot->dev; resource_size_t imdio_base; void __iomem *imdio_regs; struct resource *res; struct enetc_hw *hw; struct mii_bus *bus; int port; int rc; felix->pcs = devm_kcalloc(dev, felix->info->num_ports, sizeof(struct phy_device *), GFP_KERNEL); if (!felix->pcs) { dev_err(dev, "failed to allocate array for PCS PHYs\n"); return -ENOMEM; } imdio_base = pci_resource_start(felix->pdev, felix->info->imdio_pci_bar); res = felix->info->imdio_res; res->flags = IORESOURCE_MEM; res->start += imdio_base; res->end += imdio_base; imdio_regs = devm_ioremap_resource(dev, res); if (IS_ERR(imdio_regs)) { dev_err(dev, "failed to map internal MDIO registers\n"); return PTR_ERR(imdio_regs); } hw = enetc_hw_alloc(dev, imdio_regs); if (IS_ERR(hw)) { dev_err(dev, "failed to allocate ENETC HW structure\n"); return PTR_ERR(hw); } bus = devm_mdiobus_alloc_size(dev, sizeof(*mdio_priv)); if (!bus) return -ENOMEM; bus->name = "VSC9959 internal MDIO bus"; bus->read = enetc_mdio_read; bus->write = enetc_mdio_write; bus->parent = dev; mdio_priv = bus->priv; mdio_priv->hw = hw; /* This gets added to imdio_regs, which already maps addresses * starting with the proper offset. */ mdio_priv->mdio_base = 0; snprintf(bus->id, MII_BUS_ID_SIZE, "%s-imdio", dev_name(dev)); /* Needed in order to initialize the bus mutex lock */ rc = mdiobus_register(bus); if (rc < 0) { dev_err(dev, "failed to register MDIO bus\n"); return rc; } felix->imdio = bus; for (port = 0; port < felix->info->num_ports; port++) { struct ocelot_port *ocelot_port = ocelot->ports[port]; struct phy_device *pcs; bool is_c45 = false; if (ocelot_port->phy_mode == PHY_INTERFACE_MODE_USXGMII) is_c45 = true; pcs = get_phy_device(felix->imdio, port, is_c45); if (IS_ERR(pcs)) continue; pcs->interface = ocelot_port->phy_mode; felix->pcs[port] = pcs; dev_info(dev, "Found PCS at internal MDIO address %d\n", port); } return 0; } static void vsc9959_mdio_bus_free(struct ocelot *ocelot) { struct felix *felix = ocelot_to_felix(ocelot); int port; for (port = 0; port < ocelot->num_phys_ports; port++) { struct phy_device *pcs = felix->pcs[port]; if (!pcs) continue; put_device(&pcs->mdio.dev); } mdiobus_unregister(felix->imdio); } struct felix_info felix_info_vsc9959 = { .target_io_res = vsc9959_target_io_res, .port_io_res = vsc9959_port_io_res, .imdio_res = &vsc9959_imdio_res, .regfields = vsc9959_regfields, .map = vsc9959_regmap, .ops = &vsc9959_ops, .stats_layout = vsc9959_stats_layout, .num_stats = ARRAY_SIZE(vsc9959_stats_layout), .shared_queue_sz = 128 * 1024, .num_ports = 6, .switch_pci_bar = 4, .imdio_pci_bar = 0, .mdio_bus_alloc = vsc9959_mdio_bus_alloc, .mdio_bus_free = vsc9959_mdio_bus_free, .pcs_init = vsc9959_pcs_init, .pcs_an_restart = vsc9959_pcs_an_restart, .pcs_link_state = vsc9959_pcs_link_state, .prevalidate_phy_mode = vsc9959_prevalidate_phy_mode, };