net: mscc: Add initial Ocelot switch support

Add a driver for Microsemi Ocelot Ethernet switch support.

This makes two modules:
mscc_ocelot_common handles all the common features that doesn't depend on
how the switch is integrated in the SoC. Currently, it handles offloading
bridging to the hardware. ocelot_io.c handles register accesses. This is
unfortunately needed because the register layout is packed and then depends
on the number of ports available on the switch. The register definition
files are automatically generated.

ocelot_board handles the switch integration on the SoC and on the board.

Frame injection and extraction to/from the CPU port is currently done using
register accesses which is quite slow. DMA is possible but the port is not
able to absorb the whole switch bandwidth.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 572 insertions, 0 deletions

diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h
new file mode 100644
index 000000000000..097bd12a10d4
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot.h
@@ -0,0 +1,572 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Microsemi Ocelot Switch driver
+ *
+ * Copyright (c) 2017 Microsemi Corporation
+ */
+
+#ifndef _MSCC_OCELOT_H_
+#define _MSCC_OCELOT_H_
+
+#include <linux/bitops.h>
+#include <linux/etherdevice.h>
+#include <linux/if_vlan.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include "ocelot_ana.h"
+#include "ocelot_dev.h"
+#include "ocelot_hsio.h"
+#include "ocelot_qsys.h"
+#include "ocelot_rew.h"
+#include "ocelot_sys.h"
+#include "ocelot_qs.h"
+
+#define PGID_AGGR    64
+#define PGID_SRC     80
+
+/* Reserved PGIDs */
+#define PGID_CPU     (PGID_AGGR - 5)
+#define PGID_UC      (PGID_AGGR - 4)
+#define PGID_MC      (PGID_AGGR - 3)
+#define PGID_MCIPV4  (PGID_AGGR - 2)
+#define PGID_MCIPV6  (PGID_AGGR - 1)
+
+#define OCELOT_BUFFER_CELL_SZ 60
+
+#define OCELOT_STATS_CHECK_DELAY (2 * HZ)
+
+#define IFH_LEN 4
+
+struct frame_info {
+	u32 len;
+	u16 port;
+	u16 vid;
+	u8 cpuq;
+	u8 tag_type;
+};
+
+#define IFH_INJ_BYPASS	BIT(31)
+#define IFH_INJ_POP_CNT_DISABLE (3 << 28)
+
+#define IFH_TAG_TYPE_C 0
+#define IFH_TAG_TYPE_S 1
+
+#define OCELOT_SPEED_2500 0
+#define OCELOT_SPEED_1000 1
+#define OCELOT_SPEED_100  2
+#define OCELOT_SPEED_10   3
+
+#define TARGET_OFFSET 24
+#define REG_MASK GENMASK(TARGET_OFFSET - 1, 0)
+#define REG(reg, offset) [reg & REG_MASK] = offset
+
+enum ocelot_target {
+	ANA = 1,
+	QS,
+	QSYS,
+	REW,
+	SYS,
+	HSIO,
+	TARGET_MAX,
+};
+
+enum ocelot_reg {
+	ANA_ADVLEARN = ANA << TARGET_OFFSET,
+	ANA_VLANMASK,
+	ANA_PORT_B_DOMAIN,
+	ANA_ANAGEFIL,
+	ANA_ANEVENTS,
+	ANA_STORMLIMIT_BURST,
+	ANA_STORMLIMIT_CFG,
+	ANA_ISOLATED_PORTS,
+	ANA_COMMUNITY_PORTS,
+	ANA_AUTOAGE,
+	ANA_MACTOPTIONS,
+	ANA_LEARNDISC,
+	ANA_AGENCTRL,
+	ANA_MIRRORPORTS,
+	ANA_EMIRRORPORTS,
+	ANA_FLOODING,
+	ANA_FLOODING_IPMC,
+	ANA_SFLOW_CFG,
+	ANA_PORT_MODE,
+	ANA_CUT_THRU_CFG,
+	ANA_PGID_PGID,
+	ANA_TABLES_ANMOVED,
+	ANA_TABLES_MACHDATA,
+	ANA_TABLES_MACLDATA,
+	ANA_TABLES_STREAMDATA,
+	ANA_TABLES_MACACCESS,
+	ANA_TABLES_MACTINDX,
+	ANA_TABLES_VLANACCESS,
+	ANA_TABLES_VLANTIDX,
+	ANA_TABLES_ISDXACCESS,
+	ANA_TABLES_ISDXTIDX,
+	ANA_TABLES_ENTRYLIM,
+	ANA_TABLES_PTP_ID_HIGH,
+	ANA_TABLES_PTP_ID_LOW,
+	ANA_TABLES_STREAMACCESS,
+	ANA_TABLES_STREAMTIDX,
+	ANA_TABLES_SEQ_HISTORY,
+	ANA_TABLES_SEQ_MASK,
+	ANA_TABLES_SFID_MASK,
+	ANA_TABLES_SFIDACCESS,
+	ANA_TABLES_SFIDTIDX,
+	ANA_MSTI_STATE,
+	ANA_OAM_UPM_LM_CNT,
+	ANA_SG_ACCESS_CTRL,
+	ANA_SG_CONFIG_REG_1,
+	ANA_SG_CONFIG_REG_2,
+	ANA_SG_CONFIG_REG_3,
+	ANA_SG_CONFIG_REG_4,
+	ANA_SG_CONFIG_REG_5,
+	ANA_SG_GCL_GS_CONFIG,
+	ANA_SG_GCL_TI_CONFIG,
+	ANA_SG_STATUS_REG_1,
+	ANA_SG_STATUS_REG_2,
+	ANA_SG_STATUS_REG_3,
+	ANA_PORT_VLAN_CFG,
+	ANA_PORT_DROP_CFG,
+	ANA_PORT_QOS_CFG,
+	ANA_PORT_VCAP_CFG,
+	ANA_PORT_VCAP_S1_KEY_CFG,
+	ANA_PORT_VCAP_S2_CFG,
+	ANA_PORT_PCP_DEI_MAP,
+	ANA_PORT_CPU_FWD_CFG,
+	ANA_PORT_CPU_FWD_BPDU_CFG,
+	ANA_PORT_CPU_FWD_GARP_CFG,
+	ANA_PORT_CPU_FWD_CCM_CFG,
+	ANA_PORT_PORT_CFG,
+	ANA_PORT_POL_CFG,
+	ANA_PORT_PTP_CFG,
+	ANA_PORT_PTP_DLY1_CFG,
+	ANA_PORT_PTP_DLY2_CFG,
+	ANA_PORT_SFID_CFG,
+	ANA_PFC_PFC_CFG,
+	ANA_PFC_PFC_TIMER,
+	ANA_IPT_OAM_MEP_CFG,
+	ANA_IPT_IPT,
+	ANA_PPT_PPT,
+	ANA_FID_MAP_FID_MAP,
+	ANA_AGGR_CFG,
+	ANA_CPUQ_CFG,
+	ANA_CPUQ_CFG2,
+	ANA_CPUQ_8021_CFG,
+	ANA_DSCP_CFG,
+	ANA_DSCP_REWR_CFG,
+	ANA_VCAP_RNG_TYPE_CFG,
+	ANA_VCAP_RNG_VAL_CFG,
+	ANA_VRAP_CFG,
+	ANA_VRAP_HDR_DATA,
+	ANA_VRAP_HDR_MASK,
+	ANA_DISCARD_CFG,
+	ANA_FID_CFG,
+	ANA_POL_PIR_CFG,
+	ANA_POL_CIR_CFG,
+	ANA_POL_MODE_CFG,
+	ANA_POL_PIR_STATE,
+	ANA_POL_CIR_STATE,
+	ANA_POL_STATE,
+	ANA_POL_FLOWC,
+	ANA_POL_HYST,
+	ANA_POL_MISC_CFG,
+	QS_XTR_GRP_CFG = QS << TARGET_OFFSET,
+	QS_XTR_RD,
+	QS_XTR_FRM_PRUNING,
+	QS_XTR_FLUSH,
+	QS_XTR_DATA_PRESENT,
+	QS_XTR_CFG,
+	QS_INJ_GRP_CFG,
+	QS_INJ_WR,
+	QS_INJ_CTRL,
+	QS_INJ_STATUS,
+	QS_INJ_ERR,
+	QS_INH_DBG,
+	QSYS_PORT_MODE = QSYS << TARGET_OFFSET,
+	QSYS_SWITCH_PORT_MODE,
+	QSYS_STAT_CNT_CFG,
+	QSYS_EEE_CFG,
+	QSYS_EEE_THRES,
+	QSYS_IGR_NO_SHARING,
+	QSYS_EGR_NO_SHARING,
+	QSYS_SW_STATUS,
+	QSYS_EXT_CPU_CFG,
+	QSYS_PAD_CFG,
+	QSYS_CPU_GROUP_MAP,
+	QSYS_QMAP,
+	QSYS_ISDX_SGRP,
+	QSYS_TIMED_FRAME_ENTRY,
+	QSYS_TFRM_MISC,
+	QSYS_TFRM_PORT_DLY,
+	QSYS_TFRM_TIMER_CFG_1,
+	QSYS_TFRM_TIMER_CFG_2,
+	QSYS_TFRM_TIMER_CFG_3,
+	QSYS_TFRM_TIMER_CFG_4,
+	QSYS_TFRM_TIMER_CFG_5,
+	QSYS_TFRM_TIMER_CFG_6,
+	QSYS_TFRM_TIMER_CFG_7,
+	QSYS_TFRM_TIMER_CFG_8,
+	QSYS_RED_PROFILE,
+	QSYS_RES_QOS_MODE,
+	QSYS_RES_CFG,
+	QSYS_RES_STAT,
+	QSYS_EGR_DROP_MODE,
+	QSYS_EQ_CTRL,
+	QSYS_EVENTS_CORE,
+	QSYS_QMAXSDU_CFG_0,
+	QSYS_QMAXSDU_CFG_1,
+	QSYS_QMAXSDU_CFG_2,
+	QSYS_QMAXSDU_CFG_3,
+	QSYS_QMAXSDU_CFG_4,
+	QSYS_QMAXSDU_CFG_5,
+	QSYS_QMAXSDU_CFG_6,
+	QSYS_QMAXSDU_CFG_7,
+	QSYS_PREEMPTION_CFG,
+	QSYS_CIR_CFG,
+	QSYS_EIR_CFG,
+	QSYS_SE_CFG,
+	QSYS_SE_DWRR_CFG,
+	QSYS_SE_CONNECT,
+	QSYS_SE_DLB_SENSE,
+	QSYS_CIR_STATE,
+	QSYS_EIR_STATE,
+	QSYS_SE_STATE,
+	QSYS_HSCH_MISC_CFG,
+	QSYS_TAG_CONFIG,
+	QSYS_TAS_PARAM_CFG_CTRL,
+	QSYS_PORT_MAX_SDU,
+	QSYS_PARAM_CFG_REG_1,
+	QSYS_PARAM_CFG_REG_2,
+	QSYS_PARAM_CFG_REG_3,
+	QSYS_PARAM_CFG_REG_4,
+	QSYS_PARAM_CFG_REG_5,
+	QSYS_GCL_CFG_REG_1,
+	QSYS_GCL_CFG_REG_2,
+	QSYS_PARAM_STATUS_REG_1,
+	QSYS_PARAM_STATUS_REG_2,
+	QSYS_PARAM_STATUS_REG_3,
+	QSYS_PARAM_STATUS_REG_4,
+	QSYS_PARAM_STATUS_REG_5,
+	QSYS_PARAM_STATUS_REG_6,
+	QSYS_PARAM_STATUS_REG_7,
+	QSYS_PARAM_STATUS_REG_8,
+	QSYS_PARAM_STATUS_REG_9,
+	QSYS_GCL_STATUS_REG_1,
+	QSYS_GCL_STATUS_REG_2,
+	REW_PORT_VLAN_CFG = REW << TARGET_OFFSET,
+	REW_TAG_CFG,
+	REW_PORT_CFG,
+	REW_DSCP_CFG,
+	REW_PCP_DEI_QOS_MAP_CFG,
+	REW_PTP_CFG,
+	REW_PTP_DLY1_CFG,
+	REW_RED_TAG_CFG,
+	REW_DSCP_REMAP_DP1_CFG,
+	REW_DSCP_REMAP_CFG,
+	REW_STAT_CFG,
+	REW_REW_STICKY,
+	REW_PPT,
+	SYS_COUNT_RX_OCTETS = SYS << TARGET_OFFSET,
+	SYS_COUNT_RX_UNICAST,
+	SYS_COUNT_RX_MULTICAST,
+	SYS_COUNT_RX_BROADCAST,
+	SYS_COUNT_RX_SHORTS,
+	SYS_COUNT_RX_FRAGMENTS,
+	SYS_COUNT_RX_JABBERS,
+	SYS_COUNT_RX_CRC_ALIGN_ERRS,
+	SYS_COUNT_RX_SYM_ERRS,
+	SYS_COUNT_RX_64,
+	SYS_COUNT_RX_65_127,
+	SYS_COUNT_RX_128_255,
+	SYS_COUNT_RX_256_1023,
+	SYS_COUNT_RX_1024_1526,
+	SYS_COUNT_RX_1527_MAX,
+	SYS_COUNT_RX_PAUSE,
+	SYS_COUNT_RX_CONTROL,
+	SYS_COUNT_RX_LONGS,
+	SYS_COUNT_RX_CLASSIFIED_DROPS,
+	SYS_COUNT_TX_OCTETS,
+	SYS_COUNT_TX_UNICAST,
+	SYS_COUNT_TX_MULTICAST,
+	SYS_COUNT_TX_BROADCAST,
+	SYS_COUNT_TX_COLLISION,
+	SYS_COUNT_TX_DROPS,
+	SYS_COUNT_TX_PAUSE,
+	SYS_COUNT_TX_64,
+	SYS_COUNT_TX_65_127,
+	SYS_COUNT_TX_128_511,
+	SYS_COUNT_TX_512_1023,
+	SYS_COUNT_TX_1024_1526,
+	SYS_COUNT_TX_1527_MAX,
+	SYS_COUNT_TX_AGING,
+	SYS_RESET_CFG,
+	SYS_SR_ETYPE_CFG,
+	SYS_VLAN_ETYPE_CFG,
+	SYS_PORT_MODE,
+	SYS_FRONT_PORT_MODE,
+	SYS_FRM_AGING,
+	SYS_STAT_CFG,
+	SYS_SW_STATUS,
+	SYS_MISC_CFG,
+	SYS_REW_MAC_HIGH_CFG,
+	SYS_REW_MAC_LOW_CFG,
+	SYS_TIMESTAMP_OFFSET,
+	SYS_CMID,
+	SYS_PAUSE_CFG,
+	SYS_PAUSE_TOT_CFG,
+	SYS_ATOP,
+	SYS_ATOP_TOT_CFG,
+	SYS_MAC_FC_CFG,
+	SYS_MMGT,
+	SYS_MMGT_FAST,
+	SYS_EVENTS_DIF,
+	SYS_EVENTS_CORE,
+	SYS_CNT,
+	SYS_PTP_STATUS,
+	SYS_PTP_TXSTAMP,
+	SYS_PTP_NXT,
+	SYS_PTP_CFG,
+	SYS_RAM_INIT,
+	SYS_CM_ADDR,
+	SYS_CM_DATA_WR,
+	SYS_CM_DATA_RD,
+	SYS_CM_OP,
+	SYS_CM_DATA,
+	HSIO_PLL5G_CFG0 = HSIO << TARGET_OFFSET,
+	HSIO_PLL5G_CFG1,
+	HSIO_PLL5G_CFG2,
+	HSIO_PLL5G_CFG3,
+	HSIO_PLL5G_CFG4,
+	HSIO_PLL5G_CFG5,
+	HSIO_PLL5G_CFG6,
+	HSIO_PLL5G_STATUS0,
+	HSIO_PLL5G_STATUS1,
+	HSIO_PLL5G_BIST_CFG0,
+	HSIO_PLL5G_BIST_CFG1,
+	HSIO_PLL5G_BIST_CFG2,
+	HSIO_PLL5G_BIST_STAT0,
+	HSIO_PLL5G_BIST_STAT1,
+	HSIO_RCOMP_CFG0,
+	HSIO_RCOMP_STATUS,
+	HSIO_SYNC_ETH_CFG,
+	HSIO_SYNC_ETH_PLL_CFG,
+	HSIO_S1G_DES_CFG,
+	HSIO_S1G_IB_CFG,
+	HSIO_S1G_OB_CFG,
+	HSIO_S1G_SER_CFG,
+	HSIO_S1G_COMMON_CFG,
+	HSIO_S1G_PLL_CFG,
+	HSIO_S1G_PLL_STATUS,
+	HSIO_S1G_DFT_CFG0,
+	HSIO_S1G_DFT_CFG1,
+	HSIO_S1G_DFT_CFG2,
+	HSIO_S1G_TP_CFG,
+	HSIO_S1G_RC_PLL_BIST_CFG,
+	HSIO_S1G_MISC_CFG,
+	HSIO_S1G_DFT_STATUS,
+	HSIO_S1G_MISC_STATUS,
+	HSIO_MCB_S1G_ADDR_CFG,
+	HSIO_S6G_DIG_CFG,
+	HSIO_S6G_DFT_CFG0,
+	HSIO_S6G_DFT_CFG1,
+	HSIO_S6G_DFT_CFG2,
+	HSIO_S6G_TP_CFG0,
+	HSIO_S6G_TP_CFG1,
+	HSIO_S6G_RC_PLL_BIST_CFG,
+	HSIO_S6G_MISC_CFG,
+	HSIO_S6G_OB_ANEG_CFG,
+	HSIO_S6G_DFT_STATUS,
+	HSIO_S6G_ERR_CNT,
+	HSIO_S6G_MISC_STATUS,
+	HSIO_S6G_DES_CFG,
+	HSIO_S6G_IB_CFG,
+	HSIO_S6G_IB_CFG1,
+	HSIO_S6G_IB_CFG2,
+	HSIO_S6G_IB_CFG3,
+	HSIO_S6G_IB_CFG4,
+	HSIO_S6G_IB_CFG5,
+	HSIO_S6G_OB_CFG,
+	HSIO_S6G_OB_CFG1,
+	HSIO_S6G_SER_CFG,
+	HSIO_S6G_COMMON_CFG,
+	HSIO_S6G_PLL_CFG,
+	HSIO_S6G_ACJTAG_CFG,
+	HSIO_S6G_GP_CFG,
+	HSIO_S6G_IB_STATUS0,
+	HSIO_S6G_IB_STATUS1,
+	HSIO_S6G_ACJTAG_STATUS,
+	HSIO_S6G_PLL_STATUS,
+	HSIO_S6G_REVID,
+	HSIO_MCB_S6G_ADDR_CFG,
+	HSIO_HW_CFG,
+	HSIO_HW_QSGMII_CFG,
+	HSIO_HW_QSGMII_STAT,
+	HSIO_CLK_CFG,
+	HSIO_TEMP_SENSOR_CTRL,
+	HSIO_TEMP_SENSOR_CFG,
+	HSIO_TEMP_SENSOR_STAT,
+};
+
+enum ocelot_regfield {
+	ANA_ADVLEARN_VLAN_CHK,
+	ANA_ADVLEARN_LEARN_MIRROR,
+	ANA_ANEVENTS_FLOOD_DISCARD,
+	ANA_ANEVENTS_MSTI_DROP,
+	ANA_ANEVENTS_ACLKILL,
+	ANA_ANEVENTS_ACLUSED,
+	ANA_ANEVENTS_AUTOAGE,
+	ANA_ANEVENTS_VS2TTL1,
+	ANA_ANEVENTS_STORM_DROP,
+	ANA_ANEVENTS_LEARN_DROP,
+	ANA_ANEVENTS_AGED_ENTRY,
+	ANA_ANEVENTS_CPU_LEARN_FAILED,
+	ANA_ANEVENTS_AUTO_LEARN_FAILED,
+	ANA_ANEVENTS_LEARN_REMOVE,
+	ANA_ANEVENTS_AUTO_LEARNED,
+	ANA_ANEVENTS_AUTO_MOVED,
+	ANA_ANEVENTS_DROPPED,
+	ANA_ANEVENTS_CLASSIFIED_DROP,
+	ANA_ANEVENTS_CLASSIFIED_COPY,
+	ANA_ANEVENTS_VLAN_DISCARD,
+	ANA_ANEVENTS_FWD_DISCARD,
+	ANA_ANEVENTS_MULTICAST_FLOOD,
+	ANA_ANEVENTS_UNICAST_FLOOD,
+	ANA_ANEVENTS_DEST_KNOWN,
+	ANA_ANEVENTS_BUCKET3_MATCH,
+	ANA_ANEVENTS_BUCKET2_MATCH,
+	ANA_ANEVENTS_BUCKET1_MATCH,
+	ANA_ANEVENTS_BUCKET0_MATCH,
+	ANA_ANEVENTS_CPU_OPERATION,
+	ANA_ANEVENTS_DMAC_LOOKUP,
+	ANA_ANEVENTS_SMAC_LOOKUP,
+	ANA_ANEVENTS_SEQ_GEN_ERR_0,
+	ANA_ANEVENTS_SEQ_GEN_ERR_1,
+	ANA_TABLES_MACACCESS_B_DOM,
+	ANA_TABLES_MACTINDX_BUCKET,
+	ANA_TABLES_MACTINDX_M_INDEX,
+	QSYS_TIMED_FRAME_ENTRY_TFRM_VLD,
+	QSYS_TIMED_FRAME_ENTRY_TFRM_FP,
+	QSYS_TIMED_FRAME_ENTRY_TFRM_PORTNO,
+	QSYS_TIMED_FRAME_ENTRY_TFRM_TM_SEL,
+	QSYS_TIMED_FRAME_ENTRY_TFRM_TM_T,
+	SYS_RESET_CFG_CORE_ENA,
+	SYS_RESET_CFG_MEM_ENA,
+	SYS_RESET_CFG_MEM_INIT,
+	REGFIELD_MAX
+};
+
+struct ocelot_multicast {
+	struct list_head list;
+	unsigned char addr[ETH_ALEN];
+	u16 vid;
+	u16 ports;
+};
+
+struct ocelot_port;
+
+struct ocelot_stat_layout {
+	u32 offset;
+	char name[ETH_GSTRING_LEN];
+};
+
+struct ocelot {
+	struct device *dev;
+
+	struct regmap *targets[TARGET_MAX];
+	struct regmap_field *regfields[REGFIELD_MAX];
+	const u32 *const *map;
+	const struct ocelot_stat_layout *stats_layout;
+	unsigned int num_stats;
+
+	u8 base_mac[ETH_ALEN];
+
+	struct net_device *hw_bridge_dev;
+	u16 bridge_mask;
+	u16 bridge_fwd_mask;
+
+	struct workqueue_struct *ocelot_owq;
+
+	int shared_queue_sz;
+
+	u8 num_phys_ports;
+	u8 num_cpu_ports;
+	struct ocelot_port **ports;
+
+	u16 lags[16];
+
+	/* Keep track of the vlan port masks */
+	u32 vlan_mask[VLAN_N_VID];
+
+	struct list_head multicast;
+
+	/* Workqueue to check statistics for overflow with its lock */
+	struct mutex stats_lock;
+	u64 *stats;
+	struct delayed_work stats_work;
+	struct workqueue_struct *stats_queue;
+};
+
+struct ocelot_port {
+	struct net_device *dev;
+	struct ocelot *ocelot;
+	struct phy_device *phy;
+	void __iomem *regs;
+	u8 chip_port;
+	/* Keep a track of the mc addresses added to the mac table, so that they
+	 * can be removed when needed.
+	 */
+	struct list_head mc;
+
+	/* Ingress default VLAN (pvid) */
+	u16 pvid;
+
+	/* Egress default VLAN (vid) */
+	u16 vid;
+
+	u8 vlan_aware;
+
+	u64 *stats;
+};
+
+u32 __ocelot_read_ix(struct ocelot *ocelot, u32 reg, u32 offset);
+#define ocelot_read_ix(ocelot, reg, gi, ri) __ocelot_read_ix(ocelot, reg, reg##_GSZ * (gi) + reg##_RSZ * (ri))
+#define ocelot_read_gix(ocelot, reg, gi) __ocelot_read_ix(ocelot, reg, reg##_GSZ * (gi))
+#define ocelot_read_rix(ocelot, reg, ri) __ocelot_read_ix(ocelot, reg, reg##_RSZ * (ri))
+#define ocelot_read(ocelot, reg) __ocelot_read_ix(ocelot, reg, 0)
+
+void __ocelot_write_ix(struct ocelot *ocelot, u32 val, u32 reg, u32 offset);
+#define ocelot_write_ix(ocelot, val, reg, gi, ri) __ocelot_write_ix(ocelot, val, reg, reg##_GSZ * (gi) + reg##_RSZ * (ri))
+#define ocelot_write_gix(ocelot, val, reg, gi) __ocelot_write_ix(ocelot, val, reg, reg##_GSZ * (gi))
+#define ocelot_write_rix(ocelot, val, reg, ri) __ocelot_write_ix(ocelot, val, reg, reg##_RSZ * (ri))
+#define ocelot_write(ocelot, val, reg) __ocelot_write_ix(ocelot, val, reg, 0)
+
+void __ocelot_rmw_ix(struct ocelot *ocelot, u32 val, u32 reg, u32 mask,
+		     u32 offset);
+#define ocelot_rmw_ix(ocelot, val, m, reg, gi, ri) __ocelot_rmw_ix(ocelot, val, m, reg, reg##_GSZ * (gi) + reg##_RSZ * (ri))
+#define ocelot_rmw_gix(ocelot, val, m, reg, gi) __ocelot_rmw_ix(ocelot, val, m, reg, reg##_GSZ * (gi))
+#define ocelot_rmw_rix(ocelot, val, m, reg, ri) __ocelot_rmw_ix(ocelot, val, m, reg, reg##_RSZ * (ri))
+#define ocelot_rmw(ocelot, val, m, reg) __ocelot_rmw_ix(ocelot, val, m, reg, 0)
+
+u32 ocelot_port_readl(struct ocelot_port *port, u32 reg);
+void ocelot_port_writel(struct ocelot_port *port, u32 val, u32 reg);
+
+int ocelot_regfields_init(struct ocelot *ocelot,
+			  const struct reg_field *const regfields);
+struct regmap *ocelot_io_platform_init(struct ocelot *ocelot,
+				       struct platform_device *pdev,
+				       const char *name);
+
+#define ocelot_field_write(ocelot, reg, val) regmap_field_write((ocelot)->regfields[(reg)], (val))
+#define ocelot_field_read(ocelot, reg, val) regmap_field_read((ocelot)->regfields[(reg)], (val))
+
+int ocelot_init(struct ocelot *ocelot);
+void ocelot_deinit(struct ocelot *ocelot);
+int ocelot_chip_init(struct ocelot *ocelot);
+int ocelot_probe_port(struct ocelot *ocelot, u8 port,
+		      void __iomem *regs,
+		      struct phy_device *phy);
+
+extern struct notifier_block ocelot_netdevice_nb;
+
+#endif