Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1933 insertions, 0 deletions

diff --git a/drivers/net/ethernet/freescale/fman/fman_port.c b/drivers/net/ethernet/freescale/fman/fman_port.c
new file mode 100644
index 000000000..1812434cd
--- /dev/null
+++ b/drivers/net/ethernet/freescale/fman/fman_port.c
@@ -0,0 +1,1933 @@
+/*
+ * Copyright 2008 - 2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/delay.h>
+#include <linux/libfdt_env.h>
+
+#include "fman.h"
+#include "fman_port.h"
+#include "fman_sp.h"
+#include "fman_keygen.h"
+
+/* Queue ID */
+#define DFLT_FQ_ID		0x00FFFFFF
+
+/* General defines */
+#define PORT_BMI_FIFO_UNITS		0x100
+
+#define MAX_PORT_FIFO_SIZE(bmi_max_fifo_size)	\
+	min((u32)bmi_max_fifo_size, (u32)1024 * FMAN_BMI_FIFO_UNITS)
+
+#define PORT_CG_MAP_NUM			8
+#define PORT_PRS_RESULT_WORDS_NUM	8
+#define PORT_IC_OFFSET_UNITS		0x10
+
+#define MIN_EXT_BUF_SIZE		64
+
+#define BMI_PORT_REGS_OFFSET				0
+#define QMI_PORT_REGS_OFFSET				0x400
+#define HWP_PORT_REGS_OFFSET				0x800
+
+/* Default values */
+#define DFLT_PORT_BUFFER_PREFIX_CONTEXT_DATA_ALIGN		\
+	DFLT_FM_SP_BUFFER_PREFIX_CONTEXT_DATA_ALIGN
+
+#define DFLT_PORT_CUT_BYTES_FROM_END		4
+
+#define DFLT_PORT_ERRORS_TO_DISCARD		FM_PORT_FRM_ERR_CLS_DISCARD
+#define DFLT_PORT_MAX_FRAME_LENGTH		9600
+
+#define DFLT_PORT_RX_FIFO_PRI_ELEVATION_LEV(bmi_max_fifo_size)	\
+	MAX_PORT_FIFO_SIZE(bmi_max_fifo_size)
+
+#define DFLT_PORT_RX_FIFO_THRESHOLD(major, bmi_max_fifo_size)	\
+	(major == 6 ?						\
+	MAX_PORT_FIFO_SIZE(bmi_max_fifo_size) :		\
+	(MAX_PORT_FIFO_SIZE(bmi_max_fifo_size) * 3 / 4))	\
+
+#define DFLT_PORT_EXTRA_NUM_OF_FIFO_BUFS		0
+
+/* QMI defines */
+#define QMI_DEQ_CFG_SUBPORTAL_MASK		0x1f
+
+#define QMI_PORT_CFG_EN				0x80000000
+#define QMI_PORT_STATUS_DEQ_FD_BSY		0x20000000
+
+#define QMI_DEQ_CFG_PRI				0x80000000
+#define QMI_DEQ_CFG_TYPE1			0x10000000
+#define QMI_DEQ_CFG_TYPE2			0x20000000
+#define QMI_DEQ_CFG_TYPE3			0x30000000
+#define QMI_DEQ_CFG_PREFETCH_PARTIAL		0x01000000
+#define QMI_DEQ_CFG_PREFETCH_FULL		0x03000000
+#define QMI_DEQ_CFG_SP_MASK			0xf
+#define QMI_DEQ_CFG_SP_SHIFT			20
+
+#define QMI_BYTE_COUNT_LEVEL_CONTROL(_type)	\
+	(_type == FMAN_PORT_TYPE_TX ? 0x1400 : 0x400)
+
+/* BMI defins */
+#define BMI_EBD_EN				0x80000000
+
+#define BMI_PORT_CFG_EN				0x80000000
+
+#define BMI_PORT_STATUS_BSY			0x80000000
+
+#define BMI_DMA_ATTR_SWP_SHIFT			FMAN_SP_DMA_ATTR_SWP_SHIFT
+#define BMI_DMA_ATTR_WRITE_OPTIMIZE		FMAN_SP_DMA_ATTR_WRITE_OPTIMIZE
+
+#define BMI_RX_FIFO_PRI_ELEVATION_SHIFT	16
+#define BMI_RX_FIFO_THRESHOLD_ETHE		0x80000000
+
+#define BMI_FRAME_END_CS_IGNORE_SHIFT		24
+#define BMI_FRAME_END_CS_IGNORE_MASK		0x0000001f
+
+#define BMI_RX_FRAME_END_CUT_SHIFT		16
+#define BMI_RX_FRAME_END_CUT_MASK		0x0000001f
+
+#define BMI_IC_TO_EXT_SHIFT			FMAN_SP_IC_TO_EXT_SHIFT
+#define BMI_IC_TO_EXT_MASK			0x0000001f
+#define BMI_IC_FROM_INT_SHIFT			FMAN_SP_IC_FROM_INT_SHIFT
+#define BMI_IC_FROM_INT_MASK			0x0000000f
+#define BMI_IC_SIZE_MASK			0x0000001f
+
+#define BMI_INT_BUF_MARG_SHIFT			28
+#define BMI_INT_BUF_MARG_MASK			0x0000000f
+#define BMI_EXT_BUF_MARG_START_SHIFT		FMAN_SP_EXT_BUF_MARG_START_SHIFT
+#define BMI_EXT_BUF_MARG_START_MASK		0x000001ff
+#define BMI_EXT_BUF_MARG_END_MASK		0x000001ff
+
+#define BMI_CMD_MR_LEAC				0x00200000
+#define BMI_CMD_MR_SLEAC			0x00100000
+#define BMI_CMD_MR_MA				0x00080000
+#define BMI_CMD_MR_DEAS				0x00040000
+#define BMI_CMD_RX_MR_DEF			(BMI_CMD_MR_LEAC | \
+						BMI_CMD_MR_SLEAC | \
+						BMI_CMD_MR_MA | \
+						BMI_CMD_MR_DEAS)
+#define BMI_CMD_TX_MR_DEF			0
+
+#define BMI_CMD_ATTR_ORDER			0x80000000
+#define BMI_CMD_ATTR_SYNC			0x02000000
+#define BMI_CMD_ATTR_COLOR_SHIFT		26
+
+#define BMI_FIFO_PIPELINE_DEPTH_SHIFT		12
+#define BMI_FIFO_PIPELINE_DEPTH_MASK		0x0000000f
+#define BMI_NEXT_ENG_FD_BITS_SHIFT		24
+
+#define BMI_EXT_BUF_POOL_VALID			FMAN_SP_EXT_BUF_POOL_VALID
+#define BMI_EXT_BUF_POOL_EN_COUNTER		FMAN_SP_EXT_BUF_POOL_EN_COUNTER
+#define BMI_EXT_BUF_POOL_BACKUP		FMAN_SP_EXT_BUF_POOL_BACKUP
+#define BMI_EXT_BUF_POOL_ID_SHIFT		16
+#define BMI_EXT_BUF_POOL_ID_MASK		0x003F0000
+#define BMI_POOL_DEP_NUM_OF_POOLS_SHIFT	16
+
+#define BMI_TX_FIFO_MIN_FILL_SHIFT		16
+
+#define BMI_PRIORITY_ELEVATION_LEVEL ((0x3FF + 1) * PORT_BMI_FIFO_UNITS)
+#define BMI_FIFO_THRESHOLD	      ((0x3FF + 1) * PORT_BMI_FIFO_UNITS)
+
+#define BMI_DEQUEUE_PIPELINE_DEPTH(_type, _speed)		\
+	((_type == FMAN_PORT_TYPE_TX && _speed == 10000) ? 4 : 1)
+
+#define RX_ERRS_TO_ENQ				  \
+	(FM_PORT_FRM_ERR_DMA			| \
+	FM_PORT_FRM_ERR_PHYSICAL		| \
+	FM_PORT_FRM_ERR_SIZE			| \
+	FM_PORT_FRM_ERR_EXTRACTION		| \
+	FM_PORT_FRM_ERR_NO_SCHEME		| \
+	FM_PORT_FRM_ERR_PRS_TIMEOUT		| \
+	FM_PORT_FRM_ERR_PRS_ILL_INSTRUCT	| \
+	FM_PORT_FRM_ERR_BLOCK_LIMIT_EXCEEDED	| \
+	FM_PORT_FRM_ERR_PRS_HDR_ERR		| \
+	FM_PORT_FRM_ERR_KEYSIZE_OVERFLOW	| \
+	FM_PORT_FRM_ERR_IPRE)
+
+/* NIA defines */
+#define NIA_ORDER_RESTOR				0x00800000
+#define NIA_ENG_BMI					0x00500000
+#define NIA_ENG_QMI_ENQ					0x00540000
+#define NIA_ENG_QMI_DEQ					0x00580000
+#define NIA_ENG_HWP					0x00440000
+#define NIA_ENG_HWK					0x00480000
+#define NIA_BMI_AC_ENQ_FRAME				0x00000002
+#define NIA_BMI_AC_TX_RELEASE				0x000002C0
+#define NIA_BMI_AC_RELEASE				0x000000C0
+#define NIA_BMI_AC_TX					0x00000274
+#define NIA_BMI_AC_FETCH_ALL_FRAME			0x0000020c
+
+/* Port IDs */
+#define TX_10G_PORT_BASE		0x30
+#define RX_10G_PORT_BASE		0x10
+
+/* BMI Rx port register map */
+struct fman_port_rx_bmi_regs {
+	u32 fmbm_rcfg;		/* Rx Configuration */
+	u32 fmbm_rst;		/* Rx Status */
+	u32 fmbm_rda;		/* Rx DMA attributes */
+	u32 fmbm_rfp;		/* Rx FIFO Parameters */
+	u32 fmbm_rfed;		/* Rx Frame End Data */
+	u32 fmbm_ricp;		/* Rx Internal Context Parameters */
+	u32 fmbm_rim;		/* Rx Internal Buffer Margins */
+	u32 fmbm_rebm;		/* Rx External Buffer Margins */
+	u32 fmbm_rfne;		/* Rx Frame Next Engine */
+	u32 fmbm_rfca;		/* Rx Frame Command Attributes. */
+	u32 fmbm_rfpne;		/* Rx Frame Parser Next Engine */
+	u32 fmbm_rpso;		/* Rx Parse Start Offset */
+	u32 fmbm_rpp;		/* Rx Policer Profile  */
+	u32 fmbm_rccb;		/* Rx Coarse Classification Base */
+	u32 fmbm_reth;		/* Rx Excessive Threshold */
+	u32 reserved003c[1];	/* (0x03C 0x03F) */
+	u32 fmbm_rprai[PORT_PRS_RESULT_WORDS_NUM];
+	/* Rx Parse Results Array Init */
+	u32 fmbm_rfqid;		/* Rx Frame Queue ID */
+	u32 fmbm_refqid;	/* Rx Error Frame Queue ID */
+	u32 fmbm_rfsdm;		/* Rx Frame Status Discard Mask */
+	u32 fmbm_rfsem;		/* Rx Frame Status Error Mask */
+	u32 fmbm_rfene;		/* Rx Frame Enqueue Next Engine */
+	u32 reserved0074[0x2];	/* (0x074-0x07C)  */
+	u32 fmbm_rcmne;		/* Rx Frame Continuous Mode Next Engine */
+	u32 reserved0080[0x20];	/* (0x080 0x0FF)  */
+	u32 fmbm_ebmpi[FMAN_PORT_MAX_EXT_POOLS_NUM];
+	/* Buffer Manager pool Information- */
+	u32 fmbm_acnt[FMAN_PORT_MAX_EXT_POOLS_NUM];	/* Allocate Counter- */
+	u32 reserved0130[8];	/* 0x130/0x140 - 0x15F reserved - */
+	u32 fmbm_rcgm[PORT_CG_MAP_NUM];	/* Congestion Group Map */
+	u32 fmbm_mpd;		/* BM Pool Depletion  */
+	u32 reserved0184[0x1F];	/* (0x184 0x1FF) */
+	u32 fmbm_rstc;		/* Rx Statistics Counters */
+	u32 fmbm_rfrc;		/* Rx Frame Counter */
+	u32 fmbm_rfbc;		/* Rx Bad Frames Counter */
+	u32 fmbm_rlfc;		/* Rx Large Frames Counter */
+	u32 fmbm_rffc;		/* Rx Filter Frames Counter */
+	u32 fmbm_rfdc;		/* Rx Frame Discard Counter */
+	u32 fmbm_rfldec;		/* Rx Frames List DMA Error Counter */
+	u32 fmbm_rodc;		/* Rx Out of Buffers Discard nntr */
+	u32 fmbm_rbdc;		/* Rx Buffers Deallocate Counter */
+	u32 fmbm_rpec;		/* RX Prepare to enqueue Counte */
+	u32 reserved0224[0x16];	/* (0x224 0x27F) */
+	u32 fmbm_rpc;		/* Rx Performance Counters */
+	u32 fmbm_rpcp;		/* Rx Performance Count Parameters */
+	u32 fmbm_rccn;		/* Rx Cycle Counter */
+	u32 fmbm_rtuc;		/* Rx Tasks Utilization Counter */
+	u32 fmbm_rrquc;		/* Rx Receive Queue Utilization cntr */
+	u32 fmbm_rduc;		/* Rx DMA Utilization Counter */
+	u32 fmbm_rfuc;		/* Rx FIFO Utilization Counter */
+	u32 fmbm_rpac;		/* Rx Pause Activation Counter */
+	u32 reserved02a0[0x18];	/* (0x2A0 0x2FF) */
+	u32 fmbm_rdcfg[0x3];	/* Rx Debug Configuration */
+	u32 fmbm_rgpr;		/* Rx General Purpose Register */
+	u32 reserved0310[0x3a];
+};
+
+/* BMI Tx port register map */
+struct fman_port_tx_bmi_regs {
+	u32 fmbm_tcfg;		/* Tx Configuration */
+	u32 fmbm_tst;		/* Tx Status */
+	u32 fmbm_tda;		/* Tx DMA attributes */
+	u32 fmbm_tfp;		/* Tx FIFO Parameters */
+	u32 fmbm_tfed;		/* Tx Frame End Data */
+	u32 fmbm_ticp;		/* Tx Internal Context Parameters */
+	u32 fmbm_tfdne;		/* Tx Frame Dequeue Next Engine. */
+	u32 fmbm_tfca;		/* Tx Frame Command attribute. */
+	u32 fmbm_tcfqid;	/* Tx Confirmation Frame Queue ID. */
+	u32 fmbm_tefqid;	/* Tx Frame Error Queue ID */
+	u32 fmbm_tfene;		/* Tx Frame Enqueue Next Engine */
+	u32 fmbm_trlmts;	/* Tx Rate Limiter Scale */
+	u32 fmbm_trlmt;		/* Tx Rate Limiter */
+	u32 reserved0034[0x0e];	/* (0x034-0x6c) */
+	u32 fmbm_tccb;		/* Tx Coarse Classification base */
+	u32 fmbm_tfne;		/* Tx Frame Next Engine */
+	u32 fmbm_tpfcm[0x02];
+	/* Tx Priority based Flow Control (PFC) Mapping */
+	u32 fmbm_tcmne;		/* Tx Frame Continuous Mode Next Engine */
+	u32 reserved0080[0x60];	/* (0x080-0x200) */
+	u32 fmbm_tstc;		/* Tx Statistics Counters */
+	u32 fmbm_tfrc;		/* Tx Frame Counter */
+	u32 fmbm_tfdc;		/* Tx Frames Discard Counter */
+	u32 fmbm_tfledc;	/* Tx Frame len error discard cntr */
+	u32 fmbm_tfufdc;	/* Tx Frame unsprt frmt discard cntr */
+	u32 fmbm_tbdc;		/* Tx Buffers Deallocate Counter */
+	u32 reserved0218[0x1A];	/* (0x218-0x280) */
+	u32 fmbm_tpc;		/* Tx Performance Counters */
+	u32 fmbm_tpcp;		/* Tx Performance Count Parameters */
+	u32 fmbm_tccn;		/* Tx Cycle Counter */
+	u32 fmbm_ttuc;		/* Tx Tasks Utilization Counter */
+	u32 fmbm_ttcquc;	/* Tx Transmit conf Q util Counter */
+	u32 fmbm_tduc;		/* Tx DMA Utilization Counter */
+	u32 fmbm_tfuc;		/* Tx FIFO Utilization Counter */
+	u32 reserved029c[16];	/* (0x29C-0x2FF) */
+	u32 fmbm_tdcfg[0x3];	/* Tx Debug Configuration */
+	u32 fmbm_tgpr;		/* Tx General Purpose Register */
+	u32 reserved0310[0x3a]; /* (0x310-0x3FF) */
+};
+
+/* BMI port register map */
+union fman_port_bmi_regs {
+	struct fman_port_rx_bmi_regs rx;
+	struct fman_port_tx_bmi_regs tx;
+};
+
+/* QMI port register map */
+struct fman_port_qmi_regs {
+	u32 fmqm_pnc;		/* PortID n Configuration Register */
+	u32 fmqm_pns;		/* PortID n Status Register */
+	u32 fmqm_pnts;		/* PortID n Task Status Register */
+	u32 reserved00c[4];	/* 0xn00C - 0xn01B */
+	u32 fmqm_pnen;		/* PortID n Enqueue NIA Register */
+	u32 fmqm_pnetfc;		/* PortID n Enq Total Frame Counter */
+	u32 reserved024[2];	/* 0xn024 - 0x02B */
+	u32 fmqm_pndn;		/* PortID n Dequeue NIA Register */
+	u32 fmqm_pndc;		/* PortID n Dequeue Config Register */
+	u32 fmqm_pndtfc;		/* PortID n Dequeue tot Frame cntr */
+	u32 fmqm_pndfdc;		/* PortID n Dequeue FQID Dflt Cntr */
+	u32 fmqm_pndcc;		/* PortID n Dequeue Confirm Counter */
+};
+
+#define HWP_HXS_COUNT 16
+#define HWP_HXS_PHE_REPORT 0x00000800
+#define HWP_HXS_PCAC_PSTAT 0x00000100
+#define HWP_HXS_PCAC_PSTOP 0x00000001
+#define HWP_HXS_TCP_OFFSET 0xA
+#define HWP_HXS_UDP_OFFSET 0xB
+#define HWP_HXS_SH_PAD_REM 0x80000000
+
+struct fman_port_hwp_regs {
+	struct {
+		u32 ssa; /* Soft Sequence Attachment */
+		u32 lcv; /* Line-up Enable Confirmation Mask */
+	} pmda[HWP_HXS_COUNT]; /* Parse Memory Direct Access Registers */
+	u32 reserved080[(0x3f8 - 0x080) / 4]; /* (0x080-0x3f7) */
+	u32 fmpr_pcac; /* Configuration Access Control */
+};
+
+/* QMI dequeue prefetch modes */
+enum fman_port_deq_prefetch {
+	FMAN_PORT_DEQ_NO_PREFETCH, /* No prefetch mode */
+	FMAN_PORT_DEQ_PART_PREFETCH, /* Partial prefetch mode */
+	FMAN_PORT_DEQ_FULL_PREFETCH /* Full prefetch mode */
+};
+
+/* A structure for defining FM port resources */
+struct fman_port_rsrc {
+	u32 num; /* Committed required resource */
+	u32 extra; /* Extra (not committed) required resource */
+};
+
+enum fman_port_dma_swap {
+	FMAN_PORT_DMA_NO_SWAP,	/* No swap, transfer data as is */
+	FMAN_PORT_DMA_SWAP_LE,
+	/* The transferred data should be swapped in PPC Little Endian mode */
+	FMAN_PORT_DMA_SWAP_BE
+	/* The transferred data should be swapped in Big Endian mode */
+};
+
+/* Default port color */
+enum fman_port_color {
+	FMAN_PORT_COLOR_GREEN,	/* Default port color is green */
+	FMAN_PORT_COLOR_YELLOW,	/* Default port color is yellow */
+	FMAN_PORT_COLOR_RED,		/* Default port color is red */
+	FMAN_PORT_COLOR_OVERRIDE	/* Ignore color */
+};
+
+/* QMI dequeue from the SP channel - types */
+enum fman_port_deq_type {
+	FMAN_PORT_DEQ_BY_PRI,
+	/* Priority precedence and Intra-Class scheduling */
+	FMAN_PORT_DEQ_ACTIVE_FQ,
+	/* Active FQ precedence and Intra-Class scheduling */
+	FMAN_PORT_DEQ_ACTIVE_FQ_NO_ICS
+	/* Active FQ precedence and override Intra-Class scheduling */
+};
+
+/* External buffer pools configuration */
+struct fman_port_bpools {
+	u8 count;			/* Num of pools to set up */
+	bool counters_enable;		/* Enable allocate counters */
+	u8 grp_bp_depleted_num;
+	/* Number of depleted pools - if reached the BMI indicates
+	 * the MAC to send a pause frame
+	 */
+	struct {
+		u8 bpid;		/* BM pool ID */
+		u16 size;
+		/* Pool's size - must be in ascending order */
+		bool is_backup;
+		/* If this is a backup pool */
+		bool grp_bp_depleted;
+		/* Consider this buffer in multiple pools depletion criteria */
+		bool single_bp_depleted;
+		/* Consider this buffer in single pool depletion criteria */
+	} bpool[FMAN_PORT_MAX_EXT_POOLS_NUM];
+};
+
+struct fman_port_cfg {
+	u32 dflt_fqid;
+	u32 err_fqid;
+	u32 pcd_base_fqid;
+	u32 pcd_fqs_count;
+	u8 deq_sp;
+	bool deq_high_priority;
+	enum fman_port_deq_type deq_type;
+	enum fman_port_deq_prefetch deq_prefetch_option;
+	u16 deq_byte_cnt;
+	u8 cheksum_last_bytes_ignore;
+	u8 rx_cut_end_bytes;
+	struct fman_buf_pool_depletion buf_pool_depletion;
+	struct fman_ext_pools ext_buf_pools;
+	u32 tx_fifo_min_level;
+	u32 tx_fifo_low_comf_level;
+	u32 rx_pri_elevation;
+	u32 rx_fifo_thr;
+	struct fman_sp_buf_margins buf_margins;
+	u32 int_buf_start_margin;
+	struct fman_sp_int_context_data_copy int_context;
+	u32 discard_mask;
+	u32 err_mask;
+	struct fman_buffer_prefix_content buffer_prefix_content;
+	bool dont_release_buf;
+
+	u8 rx_fd_bits;
+	u32 tx_fifo_deq_pipeline_depth;
+	bool errata_A006320;
+	bool excessive_threshold_register;
+	bool fmbm_tfne_has_features;
+
+	enum fman_port_dma_swap dma_swap_data;
+	enum fman_port_color color;
+};
+
+struct fman_port_rx_pools_params {
+	u8 num_of_pools;
+	u16 second_largest_buf_size;
+	u16 largest_buf_size;
+};
+
+struct fman_port_dts_params {
+	void __iomem *base_addr;	/* FMan port virtual memory */
+	enum fman_port_type type;	/* Port type */
+	u16 speed;			/* Port speed */
+	u8 id;				/* HW Port Id */
+	u32 qman_channel_id;		/* QMan channel id (non RX only) */
+	struct fman *fman;		/* FMan Handle */
+};
+
+struct fman_port {
+	void *fm;
+	struct device *dev;
+	struct fman_rev_info rev_info;
+	u8 port_id;
+	enum fman_port_type port_type;
+	u16 port_speed;
+
+	union fman_port_bmi_regs __iomem *bmi_regs;
+	struct fman_port_qmi_regs __iomem *qmi_regs;
+	struct fman_port_hwp_regs __iomem *hwp_regs;
+
+	struct fman_sp_buffer_offsets buffer_offsets;
+
+	u8 internal_buf_offset;
+	struct fman_ext_pools ext_buf_pools;
+
+	u16 max_frame_length;
+	struct fman_port_rsrc open_dmas;
+	struct fman_port_rsrc tasks;
+	struct fman_port_rsrc fifo_bufs;
+	struct fman_port_rx_pools_params rx_pools_params;
+
+	struct fman_port_cfg *cfg;
+	struct fman_port_dts_params dts_params;
+
+	u8 ext_pools_num;
+	u32 max_port_fifo_size;
+	u32 max_num_of_ext_pools;
+	u32 max_num_of_sub_portals;
+	u32 bm_max_num_of_pools;
+};
+
+static int init_bmi_rx(struct fman_port *port)
+{
+	struct fman_port_rx_bmi_regs __iomem *regs = &port->bmi_regs->rx;
+	struct fman_port_cfg *cfg = port->cfg;
+	u32 tmp;
+
+	/* DMA attributes */
+	tmp = (u32)cfg->dma_swap_data << BMI_DMA_ATTR_SWP_SHIFT;
+	/* Enable write optimization */
+	tmp |= BMI_DMA_ATTR_WRITE_OPTIMIZE;
+	iowrite32be(tmp, &regs->fmbm_rda);
+
+	/* Rx FIFO parameters */
+	tmp = (cfg->rx_pri_elevation / PORT_BMI_FIFO_UNITS - 1) <<
+		BMI_RX_FIFO_PRI_ELEVATION_SHIFT;
+	tmp |= cfg->rx_fifo_thr / PORT_BMI_FIFO_UNITS - 1;
+	iowrite32be(tmp, &regs->fmbm_rfp);
+
+	if (cfg->excessive_threshold_register)
+		/* always allow access to the extra resources */
+		iowrite32be(BMI_RX_FIFO_THRESHOLD_ETHE, &regs->fmbm_reth);
+
+	/* Frame end data */
+	tmp = (cfg->cheksum_last_bytes_ignore & BMI_FRAME_END_CS_IGNORE_MASK) <<
+		BMI_FRAME_END_CS_IGNORE_SHIFT;
+	tmp |= (cfg->rx_cut_end_bytes & BMI_RX_FRAME_END_CUT_MASK) <<
+		BMI_RX_FRAME_END_CUT_SHIFT;
+	if (cfg->errata_A006320)
+		tmp &= 0xffe0ffff;
+	iowrite32be(tmp, &regs->fmbm_rfed);
+
+	/* Internal context parameters */
+	tmp = ((cfg->int_context.ext_buf_offset / PORT_IC_OFFSET_UNITS) &
+		BMI_IC_TO_EXT_MASK) << BMI_IC_TO_EXT_SHIFT;
+	tmp |= ((cfg->int_context.int_context_offset / PORT_IC_OFFSET_UNITS) &
+		BMI_IC_FROM_INT_MASK) << BMI_IC_FROM_INT_SHIFT;
+	tmp |= (cfg->int_context.size / PORT_IC_OFFSET_UNITS) &
+		BMI_IC_SIZE_MASK;
+	iowrite32be(tmp, &regs->fmbm_ricp);
+
+	/* Internal buffer offset */
+	tmp = ((cfg->int_buf_start_margin / PORT_IC_OFFSET_UNITS) &
+		BMI_INT_BUF_MARG_MASK) << BMI_INT_BUF_MARG_SHIFT;
+	iowrite32be(tmp, &regs->fmbm_rim);
+
+	/* External buffer margins */
+	tmp = (cfg->buf_margins.start_margins & BMI_EXT_BUF_MARG_START_MASK) <<
+		BMI_EXT_BUF_MARG_START_SHIFT;
+	tmp |= cfg->buf_margins.end_margins & BMI_EXT_BUF_MARG_END_MASK;
+	iowrite32be(tmp, &regs->fmbm_rebm);
+
+	/* Frame attributes */
+	tmp = BMI_CMD_RX_MR_DEF;
+	tmp |= BMI_CMD_ATTR_ORDER;
+	tmp |= (u32)cfg->color << BMI_CMD_ATTR_COLOR_SHIFT;
+	/* Synchronization request */
+	tmp |= BMI_CMD_ATTR_SYNC;
+
+	iowrite32be(tmp, &regs->fmbm_rfca);
+
+	/* NIA */
+	tmp = (u32)cfg->rx_fd_bits << BMI_NEXT_ENG_FD_BITS_SHIFT;
+
+	tmp |= NIA_ENG_HWP;
+	iowrite32be(tmp, &regs->fmbm_rfne);
+
+	/* Parser Next Engine NIA */
+	iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_ENQ_FRAME, &regs->fmbm_rfpne);
+
+	/* Enqueue NIA */
+	iowrite32be(NIA_ENG_QMI_ENQ | NIA_ORDER_RESTOR, &regs->fmbm_rfene);
+
+	/* Default/error queues */
+	iowrite32be((cfg->dflt_fqid & DFLT_FQ_ID), &regs->fmbm_rfqid);
+	iowrite32be((cfg->err_fqid & DFLT_FQ_ID), &regs->fmbm_refqid);
+
+	/* Discard/error masks */
+	iowrite32be(cfg->discard_mask, &regs->fmbm_rfsdm);
+	iowrite32be(cfg->err_mask, &regs->fmbm_rfsem);
+
+	return 0;
+}
+
+static int init_bmi_tx(struct fman_port *port)
+{
+	struct fman_port_tx_bmi_regs __iomem *regs = &port->bmi_regs->tx;
+	struct fman_port_cfg *cfg = port->cfg;
+	u32 tmp;
+
+	/* Tx Configuration register */
+	tmp = 0;
+	iowrite32be(tmp, &regs->fmbm_tcfg);
+
+	/* DMA attributes */
+	tmp = (u32)cfg->dma_swap_data << BMI_DMA_ATTR_SWP_SHIFT;
+	iowrite32be(tmp, &regs->fmbm_tda);
+
+	/* Tx FIFO parameters */
+	tmp = (cfg->tx_fifo_min_level / PORT_BMI_FIFO_UNITS) <<
+		BMI_TX_FIFO_MIN_FILL_SHIFT;
+	tmp |= ((cfg->tx_fifo_deq_pipeline_depth - 1) &
+		BMI_FIFO_PIPELINE_DEPTH_MASK) << BMI_FIFO_PIPELINE_DEPTH_SHIFT;
+	tmp |= (cfg->tx_fifo_low_comf_level / PORT_BMI_FIFO_UNITS) - 1;
+	iowrite32be(tmp, &regs->fmbm_tfp);
+
+	/* Frame end data */
+	tmp = (cfg->cheksum_last_bytes_ignore & BMI_FRAME_END_CS_IGNORE_MASK) <<
+		BMI_FRAME_END_CS_IGNORE_SHIFT;
+	iowrite32be(tmp, &regs->fmbm_tfed);
+
+	/* Internal context parameters */
+	tmp = ((cfg->int_context.ext_buf_offset / PORT_IC_OFFSET_UNITS) &
+		BMI_IC_TO_EXT_MASK) << BMI_IC_TO_EXT_SHIFT;
+	tmp |= ((cfg->int_context.int_context_offset / PORT_IC_OFFSET_UNITS) &
+		BMI_IC_FROM_INT_MASK) << BMI_IC_FROM_INT_SHIFT;
+	tmp |= (cfg->int_context.size / PORT_IC_OFFSET_UNITS) &
+		BMI_IC_SIZE_MASK;
+	iowrite32be(tmp, &regs->fmbm_ticp);
+
+	/* Frame attributes */
+	tmp = BMI_CMD_TX_MR_DEF;
+	tmp |= BMI_CMD_ATTR_ORDER;
+	tmp |= (u32)cfg->color << BMI_CMD_ATTR_COLOR_SHIFT;
+	iowrite32be(tmp, &regs->fmbm_tfca);
+
+	/* Dequeue NIA + enqueue NIA */
+	iowrite32be(NIA_ENG_QMI_DEQ, &regs->fmbm_tfdne);
+	iowrite32be(NIA_ENG_QMI_ENQ | NIA_ORDER_RESTOR, &regs->fmbm_tfene);
+	if (cfg->fmbm_tfne_has_features)
+		iowrite32be(!cfg->dflt_fqid ?
+			    BMI_EBD_EN | NIA_BMI_AC_FETCH_ALL_FRAME :
+			    NIA_BMI_AC_FETCH_ALL_FRAME, &regs->fmbm_tfne);
+	if (!cfg->dflt_fqid && cfg->dont_release_buf) {
+		iowrite32be(DFLT_FQ_ID, &regs->fmbm_tcfqid);
+		iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_TX_RELEASE,
+			    &regs->fmbm_tfene);
+		if (cfg->fmbm_tfne_has_features)
+			iowrite32be(ioread32be(&regs->fmbm_tfne) & ~BMI_EBD_EN,
+				    &regs->fmbm_tfne);
+	}
+
+	/* Confirmation/error queues */
+	if (cfg->dflt_fqid || !cfg->dont_release_buf)
+		iowrite32be(cfg->dflt_fqid & DFLT_FQ_ID, &regs->fmbm_tcfqid);
+	iowrite32be((cfg->err_fqid & DFLT_FQ_ID), &regs->fmbm_tefqid);
+
+	return 0;
+}
+
+static int init_qmi(struct fman_port *port)
+{
+	struct fman_port_qmi_regs __iomem *regs = port->qmi_regs;
+	struct fman_port_cfg *cfg = port->cfg;
+	u32 tmp;
+
+	/* Rx port configuration */
+	if (port->port_type == FMAN_PORT_TYPE_RX) {
+		/* Enqueue NIA */
+		iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_RELEASE, &regs->fmqm_pnen);
+		return 0;
+	}
+
+	/* Continue with Tx port configuration */
+	if (port->port_type == FMAN_PORT_TYPE_TX) {
+		/* Enqueue NIA */
+		iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_TX_RELEASE,
+			    &regs->fmqm_pnen);
+		/* Dequeue NIA */
+		iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_TX, &regs->fmqm_pndn);
+	}
+
+	/* Dequeue Configuration register */
+	tmp = 0;
+	if (cfg->deq_high_priority)
+		tmp |= QMI_DEQ_CFG_PRI;
+
+	switch (cfg->deq_type) {
+	case FMAN_PORT_DEQ_BY_PRI:
+		tmp |= QMI_DEQ_CFG_TYPE1;
+		break;
+	case FMAN_PORT_DEQ_ACTIVE_FQ:
+		tmp |= QMI_DEQ_CFG_TYPE2;
+		break;
+	case FMAN_PORT_DEQ_ACTIVE_FQ_NO_ICS:
+		tmp |= QMI_DEQ_CFG_TYPE3;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (cfg->deq_prefetch_option) {
+	case FMAN_PORT_DEQ_NO_PREFETCH:
+		break;
+	case FMAN_PORT_DEQ_PART_PREFETCH:
+		tmp |= QMI_DEQ_CFG_PREFETCH_PARTIAL;
+		break;
+	case FMAN_PORT_DEQ_FULL_PREFETCH:
+		tmp |= QMI_DEQ_CFG_PREFETCH_FULL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	tmp |= (cfg->deq_sp & QMI_DEQ_CFG_SP_MASK) << QMI_DEQ_CFG_SP_SHIFT;
+	tmp |= cfg->deq_byte_cnt;
+	iowrite32be(tmp, &regs->fmqm_pndc);
+
+	return 0;
+}
+
+static void stop_port_hwp(struct fman_port *port)
+{
+	struct fman_port_hwp_regs __iomem *regs = port->hwp_regs;
+	int cnt = 100;
+
+	iowrite32be(HWP_HXS_PCAC_PSTOP, &regs->fmpr_pcac);
+
+	while (cnt-- > 0 &&
+	       (ioread32be(&regs->fmpr_pcac) & HWP_HXS_PCAC_PSTAT))
+		udelay(10);
+	if (!cnt)
+		pr_err("Timeout stopping HW Parser\n");
+}
+
+static void start_port_hwp(struct fman_port *port)
+{
+	struct fman_port_hwp_regs __iomem *regs = port->hwp_regs;
+	int cnt = 100;
+
+	iowrite32be(0, &regs->fmpr_pcac);
+
+	while (cnt-- > 0 &&
+	       !(ioread32be(&regs->fmpr_pcac) & HWP_HXS_PCAC_PSTAT))
+		udelay(10);
+	if (!cnt)
+		pr_err("Timeout starting HW Parser\n");
+}
+
+static void init_hwp(struct fman_port *port)
+{
+	struct fman_port_hwp_regs __iomem *regs = port->hwp_regs;
+	int i;
+
+	stop_port_hwp(port);
+
+	for (i = 0; i < HWP_HXS_COUNT; i++) {
+		/* enable HXS error reporting into FD[STATUS] PHE */
+		iowrite32be(0x00000000, &regs->pmda[i].ssa);
+		iowrite32be(0xffffffff, &regs->pmda[i].lcv);
+	}
+
+	/* Short packet padding removal from checksum calculation */
+	iowrite32be(HWP_HXS_SH_PAD_REM, &regs->pmda[HWP_HXS_TCP_OFFSET].ssa);
+	iowrite32be(HWP_HXS_SH_PAD_REM, &regs->pmda[HWP_HXS_UDP_OFFSET].ssa);
+
+	start_port_hwp(port);
+}
+
+static int init(struct fman_port *port)
+{
+	int err;
+
+	/* Init BMI registers */
+	switch (port->port_type) {
+	case FMAN_PORT_TYPE_RX:
+		err = init_bmi_rx(port);
+		if (!err)
+			init_hwp(port);
+		break;
+	case FMAN_PORT_TYPE_TX:
+		err = init_bmi_tx(port);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (err)
+		return err;
+
+	/* Init QMI registers */
+	err = init_qmi(port);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static int set_bpools(const struct fman_port *port,
+		      const struct fman_port_bpools *bp)
+{
+	u32 __iomem *bp_reg, *bp_depl_reg;
+	u32 tmp;
+	u8 i, max_bp_num;
+	bool grp_depl_used = false, rx_port;
+
+	switch (port->port_type) {
+	case FMAN_PORT_TYPE_RX:
+		max_bp_num = port->ext_pools_num;
+		rx_port = true;
+		bp_reg = port->bmi_regs->rx.fmbm_ebmpi;
+		bp_depl_reg = &port->bmi_regs->rx.fmbm_mpd;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (rx_port) {
+		/* Check buffers are provided in ascending order */
+		for (i = 0; (i < (bp->count - 1) &&
+			     (i < FMAN_PORT_MAX_EXT_POOLS_NUM - 1)); i++) {
+			if (bp->bpool[i].size > bp->bpool[i + 1].size)
+				return -EINVAL;
+		}
+	}
+
+	/* Set up external buffers pools */
+	for (i = 0; i < bp->count; i++) {
+		tmp = BMI_EXT_BUF_POOL_VALID;
+		tmp |= ((u32)bp->bpool[i].bpid <<
+			BMI_EXT_BUF_POOL_ID_SHIFT) & BMI_EXT_BUF_POOL_ID_MASK;
+
+		if (rx_port) {
+			if (bp->counters_enable)
+				tmp |= BMI_EXT_BUF_POOL_EN_COUNTER;
+
+			if (bp->bpool[i].is_backup)
+				tmp |= BMI_EXT_BUF_POOL_BACKUP;
+
+			tmp |= (u32)bp->bpool[i].size;
+		}
+
+		iowrite32be(tmp, &bp_reg[i]);
+	}
+
+	/* Clear unused pools */
+	for (i = bp->count; i < max_bp_num; i++)
+		iowrite32be(0, &bp_reg[i]);
+
+	/* Pools depletion */
+	tmp = 0;
+	for (i = 0; i < FMAN_PORT_MAX_EXT_POOLS_NUM; i++) {
+		if (bp->bpool[i].grp_bp_depleted) {
+			grp_depl_used = true;
+			tmp |= 0x80000000 >> i;
+		}
+
+		if (bp->bpool[i].single_bp_depleted)
+			tmp |= 0x80 >> i;
+	}
+
+	if (grp_depl_used)
+		tmp |= ((u32)bp->grp_bp_depleted_num - 1) <<
+		    BMI_POOL_DEP_NUM_OF_POOLS_SHIFT;
+
+	iowrite32be(tmp, bp_depl_reg);
+	return 0;
+}
+
+static bool is_init_done(struct fman_port_cfg *cfg)
+{
+	/* Checks if FMan port driver parameters were initialized */
+	if (!cfg)
+		return true;
+
+	return false;
+}
+
+static int verify_size_of_fifo(struct fman_port *port)
+{
+	u32 min_fifo_size_required = 0, opt_fifo_size_for_b2b = 0;
+
+	/* TX Ports */
+	if (port->port_type == FMAN_PORT_TYPE_TX) {
+		min_fifo_size_required = (u32)
+		    (roundup(port->max_frame_length,
+			     FMAN_BMI_FIFO_UNITS) + (3 * FMAN_BMI_FIFO_UNITS));
+
+		min_fifo_size_required +=
+		    port->cfg->tx_fifo_deq_pipeline_depth *
+		    FMAN_BMI_FIFO_UNITS;
+
+		opt_fifo_size_for_b2b = min_fifo_size_required;
+
+		/* Add some margin for back-to-back capability to improve
+		 * performance, allows the hardware to pipeline new frame dma
+		 * while the previous frame not yet transmitted.
+		 */
+		if (port->port_speed == 10000)
+			opt_fifo_size_for_b2b += 3 * FMAN_BMI_FIFO_UNITS;
+		else
+			opt_fifo_size_for_b2b += 2 * FMAN_BMI_FIFO_UNITS;
+	}
+
+	/* RX Ports */
+	else if (port->port_type == FMAN_PORT_TYPE_RX) {
+		if (port->rev_info.major >= 6)
+			min_fifo_size_required = (u32)
+			(roundup(port->max_frame_length,
+				 FMAN_BMI_FIFO_UNITS) +
+				 (5 * FMAN_BMI_FIFO_UNITS));
+			/* 4 according to spec + 1 for FOF>0 */
+		else
+			min_fifo_size_required = (u32)
+			(roundup(min(port->max_frame_length,
+				     port->rx_pools_params.largest_buf_size),
+				     FMAN_BMI_FIFO_UNITS) +
+				     (7 * FMAN_BMI_FIFO_UNITS));
+
+		opt_fifo_size_for_b2b = min_fifo_size_required;
+
+		/* Add some margin for back-to-back capability to improve
+		 * performance,allows the hardware to pipeline new frame dma
+		 * while the previous frame not yet transmitted.
+		 */
+		if (port->port_speed == 10000)
+			opt_fifo_size_for_b2b += 8 * FMAN_BMI_FIFO_UNITS;
+		else
+			opt_fifo_size_for_b2b += 3 * FMAN_BMI_FIFO_UNITS;
+	}
+
+	WARN_ON(min_fifo_size_required <= 0);
+	WARN_ON(opt_fifo_size_for_b2b < min_fifo_size_required);
+
+	/* Verify the size  */
+	if (port->fifo_bufs.num < min_fifo_size_required)
+		dev_dbg(port->dev, "%s: FIFO size should be enlarged to %d bytes\n",
+			__func__, min_fifo_size_required);
+	else if (port->fifo_bufs.num < opt_fifo_size_for_b2b)
+		dev_dbg(port->dev, "%s: For b2b processing,FIFO may be enlarged to %d bytes\n",
+			__func__, opt_fifo_size_for_b2b);
+
+	return 0;
+}
+
+static int set_ext_buffer_pools(struct fman_port *port)
+{
+	struct fman_ext_pools *ext_buf_pools = &port->cfg->ext_buf_pools;
+	struct fman_buf_pool_depletion *buf_pool_depletion =
+	&port->cfg->buf_pool_depletion;
+	u8 ordered_array[FMAN_PORT_MAX_EXT_POOLS_NUM];
+	u16 sizes_array[BM_MAX_NUM_OF_POOLS];
+	int i = 0, j = 0, err;
+	struct fman_port_bpools bpools;
+
+	memset(&ordered_array, 0, sizeof(u8) * FMAN_PORT_MAX_EXT_POOLS_NUM);
+	memset(&sizes_array, 0, sizeof(u16) * BM_MAX_NUM_OF_POOLS);
+	memcpy(&port->ext_buf_pools, ext_buf_pools,
+	       sizeof(struct fman_ext_pools));
+
+	fman_sp_set_buf_pools_in_asc_order_of_buf_sizes(ext_buf_pools,
+							ordered_array,
+							sizes_array);
+
+	memset(&bpools, 0, sizeof(struct fman_port_bpools));
+	bpools.count = ext_buf_pools->num_of_pools_used;
+	bpools.counters_enable = true;
+	for (i = 0; i < ext_buf_pools->num_of_pools_used; i++) {
+		bpools.bpool[i].bpid = ordered_array[i];
+		bpools.bpool[i].size = sizes_array[ordered_array[i]];
+	}
+
+	/* save pools parameters for later use */
+	port->rx_pools_params.num_of_pools = ext_buf_pools->num_of_pools_used;
+	port->rx_pools_params.largest_buf_size =
+	    sizes_array[ordered_array[ext_buf_pools->num_of_pools_used - 1]];
+	port->rx_pools_params.second_largest_buf_size =
+	    sizes_array[ordered_array[ext_buf_pools->num_of_pools_used - 2]];
+
+	/* FMBM_RMPD reg. - pool depletion */
+	if (buf_pool_depletion->pools_grp_mode_enable) {
+		bpools.grp_bp_depleted_num = buf_pool_depletion->num_of_pools;
+		for (i = 0; i < port->bm_max_num_of_pools; i++) {
+			if (buf_pool_depletion->pools_to_consider[i]) {
+				for (j = 0; j < ext_buf_pools->
+				     num_of_pools_used; j++) {
+					if (i == ordered_array[j]) {
+						bpools.bpool[j].
+						    grp_bp_depleted = true;
+						break;
+					}
+				}
+			}
+		}
+	}
+
+	if (buf_pool_depletion->single_pool_mode_enable) {
+		for (i = 0; i < port->bm_max_num_of_pools; i++) {
+			if (buf_pool_depletion->
+			    pools_to_consider_for_single_mode[i]) {
+				for (j = 0; j < ext_buf_pools->
+				     num_of_pools_used; j++) {
+					if (i == ordered_array[j]) {
+						bpools.bpool[j].
+						    single_bp_depleted = true;
+						break;
+					}
+				}
+			}
+		}
+	}
+
+	err = set_bpools(port, &bpools);
+	if (err != 0) {
+		dev_err(port->dev, "%s: set_bpools() failed\n", __func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int init_low_level_driver(struct fman_port *port)
+{
+	struct fman_port_cfg *cfg = port->cfg;
+	u32 tmp_val;
+
+	switch (port->port_type) {
+	case FMAN_PORT_TYPE_RX:
+		cfg->err_mask = (RX_ERRS_TO_ENQ & ~cfg->discard_mask);
+		break;
+	default:
+		break;
+	}
+
+	tmp_val = (u32)((port->internal_buf_offset % OFFSET_UNITS) ?
+		(port->internal_buf_offset / OFFSET_UNITS + 1) :
+		(port->internal_buf_offset / OFFSET_UNITS));
+	port->internal_buf_offset = (u8)(tmp_val * OFFSET_UNITS);
+	port->cfg->int_buf_start_margin = port->internal_buf_offset;
+
+	if (init(port) != 0) {
+		dev_err(port->dev, "%s: fman port initialization failed\n",
+			__func__);
+		return -ENODEV;
+	}
+
+	/* The code bellow is a trick so the FM will not release the buffer
+	 * to BM nor will try to enqueue the frame to QM
+	 */
+	if (port->port_type == FMAN_PORT_TYPE_TX) {
+		if (!cfg->dflt_fqid && cfg->dont_release_buf) {
+			/* override fmbm_tcfqid 0 with a false non-0 value.
+			 * This will force FM to act according to tfene.
+			 * Otherwise, if fmbm_tcfqid is 0 the FM will release
+			 * buffers to BM regardless of fmbm_tfene
+			 */
+			iowrite32be(0xFFFFFF, &port->bmi_regs->tx.fmbm_tcfqid);
+			iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_TX_RELEASE,
+				    &port->bmi_regs->tx.fmbm_tfene);
+		}
+	}
+
+	return 0;
+}
+
+static int fill_soc_specific_params(struct fman_port *port)
+{
+	u32 bmi_max_fifo_size;
+
+	bmi_max_fifo_size = fman_get_bmi_max_fifo_size(port->fm);
+	port->max_port_fifo_size = MAX_PORT_FIFO_SIZE(bmi_max_fifo_size);
+	port->bm_max_num_of_pools = 64;
+
+	/* P4080 - Major 2
+	 * P2041/P3041/P5020/P5040 - Major 3
+	 * Tx/Bx - Major 6
+	 */
+	switch (port->rev_info.major) {
+	case 2:
+	case 3:
+		port->max_num_of_ext_pools		= 4;
+		port->max_num_of_sub_portals		= 12;
+		break;
+
+	case 6:
+		port->max_num_of_ext_pools		= 8;
+		port->max_num_of_sub_portals		= 16;
+		break;
+
+	default:
+		dev_err(port->dev, "%s: Unsupported FMan version\n", __func__);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int get_dflt_fifo_deq_pipeline_depth(u8 major, enum fman_port_type type,
+					    u16 speed)
+{
+	switch (type) {
+	case FMAN_PORT_TYPE_RX:
+	case FMAN_PORT_TYPE_TX:
+		switch (speed) {
+		case 10000:
+			return 4;
+		case 1000:
+			if (major >= 6)
+				return 2;
+			else
+				return 1;
+		default:
+			return 0;
+		}
+	default:
+		return 0;
+	}
+}
+
+static int get_dflt_num_of_tasks(u8 major, enum fman_port_type type,
+				 u16 speed)
+{
+	switch (type) {
+	case FMAN_PORT_TYPE_RX:
+	case FMAN_PORT_TYPE_TX:
+		switch (speed) {
+		case 10000:
+			return 16;
+		case 1000:
+			if (major >= 6)
+				return 4;
+			else
+				return 3;
+		default:
+			return 0;
+		}
+	default:
+		return 0;
+	}
+}
+
+static int get_dflt_extra_num_of_tasks(u8 major, enum fman_port_type type,
+				       u16 speed)
+{
+	switch (type) {
+	case FMAN_PORT_TYPE_RX:
+		/* FMan V3 */
+		if (major >= 6)
+			return 0;
+
+		/* FMan V2 */
+		if (speed == 10000)
+			return 8;
+		else
+			return 2;
+	case FMAN_PORT_TYPE_TX:
+	default:
+		return 0;
+	}
+}
+
+static int get_dflt_num_of_open_dmas(u8 major, enum fman_port_type type,
+				     u16 speed)
+{
+	int val;
+
+	if (major >= 6) {
+		switch (type) {
+		case FMAN_PORT_TYPE_TX:
+			if (speed == 10000)
+				val = 12;
+			else
+				val = 3;
+			break;
+		case FMAN_PORT_TYPE_RX:
+			if (speed == 10000)
+				val = 8;
+			else
+				val = 2;
+			break;
+		default:
+			return 0;
+		}
+	} else {
+		switch (type) {
+		case FMAN_PORT_TYPE_TX:
+		case FMAN_PORT_TYPE_RX:
+			if (speed == 10000)
+				val = 8;
+			else
+				val = 1;
+			break;
+		default:
+			val = 0;
+		}
+	}
+
+	return val;
+}
+
+static int get_dflt_extra_num_of_open_dmas(u8 major, enum fman_port_type type,
+					   u16 speed)
+{
+	/* FMan V3 */
+	if (major >= 6)
+		return 0;
+
+	/* FMan V2 */
+	switch (type) {
+	case FMAN_PORT_TYPE_RX:
+	case FMAN_PORT_TYPE_TX:
+		if (speed == 10000)
+			return 8;
+		else
+			return 1;
+	default:
+		return 0;
+	}
+}
+
+static int get_dflt_num_of_fifo_bufs(u8 major, enum fman_port_type type,
+				     u16 speed)
+{
+	int val;
+
+	if (major >= 6) {
+		switch (type) {
+		case FMAN_PORT_TYPE_TX:
+			if (speed == 10000)
+				val = 64;
+			else
+				val = 50;
+			break;
+		case FMAN_PORT_TYPE_RX:
+			if (speed == 10000)
+				val = 96;
+			else
+				val = 50;
+			break;
+		default:
+			val = 0;
+		}
+	} else {
+		switch (type) {
+		case FMAN_PORT_TYPE_TX:
+			if (speed == 10000)
+				val = 48;
+			else
+				val = 44;
+			break;
+		case FMAN_PORT_TYPE_RX:
+			if (speed == 10000)
+				val = 48;
+			else
+				val = 45;
+			break;
+		default:
+			val = 0;
+		}
+	}
+
+	return val;
+}
+
+static void set_dflt_cfg(struct fman_port *port,
+			 struct fman_port_params *port_params)
+{
+	struct fman_port_cfg *cfg = port->cfg;
+
+	cfg->dma_swap_data = FMAN_PORT_DMA_NO_SWAP;
+	cfg->color = FMAN_PORT_COLOR_GREEN;
+	cfg->rx_cut_end_bytes = DFLT_PORT_CUT_BYTES_FROM_END;
+	cfg->rx_pri_elevation = BMI_PRIORITY_ELEVATION_LEVEL;
+	cfg->rx_fifo_thr = BMI_FIFO_THRESHOLD;
+	cfg->tx_fifo_low_comf_level = (5 * 1024);
+	cfg->deq_type = FMAN_PORT_DEQ_BY_PRI;
+	cfg->deq_prefetch_option = FMAN_PORT_DEQ_FULL_PREFETCH;
+	cfg->tx_fifo_deq_pipeline_depth =
+		BMI_DEQUEUE_PIPELINE_DEPTH(port->port_type, port->port_speed);
+	cfg->deq_byte_cnt = QMI_BYTE_COUNT_LEVEL_CONTROL(port->port_type);
+
+	cfg->rx_pri_elevation =
+		DFLT_PORT_RX_FIFO_PRI_ELEVATION_LEV(port->max_port_fifo_size);
+	port->cfg->rx_fifo_thr =
+		DFLT_PORT_RX_FIFO_THRESHOLD(port->rev_info.major,
+					    port->max_port_fifo_size);
+
+	if ((port->rev_info.major == 6) &&
+	    ((port->rev_info.minor == 0) || (port->rev_info.minor == 3)))
+		cfg->errata_A006320 = true;
+
+	/* Excessive Threshold register - exists for pre-FMv3 chips only */
+	if (port->rev_info.major < 6)
+		cfg->excessive_threshold_register = true;
+	else
+		cfg->fmbm_tfne_has_features = true;
+
+	cfg->buffer_prefix_content.data_align =
+		DFLT_PORT_BUFFER_PREFIX_CONTEXT_DATA_ALIGN;
+}
+
+static void set_rx_dflt_cfg(struct fman_port *port,
+			    struct fman_port_params *port_params)
+{
+	port->cfg->discard_mask = DFLT_PORT_ERRORS_TO_DISCARD;
+
+	memcpy(&port->cfg->ext_buf_pools,
+	       &port_params->specific_params.rx_params.ext_buf_pools,
+	       sizeof(struct fman_ext_pools));
+	port->cfg->err_fqid =
+		port_params->specific_params.rx_params.err_fqid;
+	port->cfg->dflt_fqid =
+		port_params->specific_params.rx_params.dflt_fqid;
+	port->cfg->pcd_base_fqid =
+		port_params->specific_params.rx_params.pcd_base_fqid;
+	port->cfg->pcd_fqs_count =
+		port_params->specific_params.rx_params.pcd_fqs_count;
+}
+
+static void set_tx_dflt_cfg(struct fman_port *port,
+			    struct fman_port_params *port_params,
+			    struct fman_port_dts_params *dts_params)
+{
+	port->cfg->tx_fifo_deq_pipeline_depth =
+		get_dflt_fifo_deq_pipeline_depth(port->rev_info.major,
+						 port->port_type,
+						 port->port_speed);
+	port->cfg->err_fqid =
+		port_params->specific_params.non_rx_params.err_fqid;
+	port->cfg->deq_sp =
+		(u8)(dts_params->qman_channel_id & QMI_DEQ_CFG_SUBPORTAL_MASK);
+	port->cfg->dflt_fqid =
+		port_params->specific_params.non_rx_params.dflt_fqid;
+	port->cfg->deq_high_priority = true;
+}
+
+/**
+ * fman_port_config
+ * @port:	Pointer to the port structure
+ * @params:	Pointer to data structure of parameters
+ *
+ * Creates a descriptor for the FM PORT module.
+ * The routine returns a pointer to the FM PORT object.
+ * This descriptor must be passed as first parameter to all other FM PORT
+ * function calls.
+ * No actual initialization or configuration of FM hardware is done by this
+ * routine.
+ *
+ * Return: 0 on success; Error code otherwise.
+ */
+int fman_port_config(struct fman_port *port, struct fman_port_params *params)
+{
+	void __iomem *base_addr = port->dts_params.base_addr;
+	int err;
+
+	/* Allocate the FM driver's parameters structure */
+	port->cfg = kzalloc(sizeof(*port->cfg), GFP_KERNEL);
+	if (!port->cfg)
+		return -EINVAL;
+
+	/* Initialize FM port parameters which will be kept by the driver */
+	port->port_type = port->dts_params.type;
+	port->port_speed = port->dts_params.speed;
+	port->port_id = port->dts_params.id;
+	port->fm = port->dts_params.fman;
+	port->ext_pools_num = (u8)8;
+
+	/* get FM revision */
+	fman_get_revision(port->fm, &port->rev_info);
+
+	err = fill_soc_specific_params(port);
+	if (err)
+		goto err_port_cfg;
+
+	switch (port->port_type) {
+	case FMAN_PORT_TYPE_RX:
+		set_rx_dflt_cfg(port, params);
+		/* fall through */
+	case FMAN_PORT_TYPE_TX:
+		set_tx_dflt_cfg(port, params, &port->dts_params);
+		/* fall through */
+	default:
+		set_dflt_cfg(port, params);
+	}
+
+	/* Continue with other parameters */
+	/* set memory map pointers */
+	port->bmi_regs = base_addr + BMI_PORT_REGS_OFFSET;
+	port->qmi_regs = base_addr + QMI_PORT_REGS_OFFSET;
+	port->hwp_regs = base_addr + HWP_PORT_REGS_OFFSET;
+
+	port->max_frame_length = DFLT_PORT_MAX_FRAME_LENGTH;
+	/* resource distribution. */
+
+	port->fifo_bufs.num =
+	get_dflt_num_of_fifo_bufs(port->rev_info.major, port->port_type,
+				  port->port_speed) * FMAN_BMI_FIFO_UNITS;
+	port->fifo_bufs.extra =
+	DFLT_PORT_EXTRA_NUM_OF_FIFO_BUFS * FMAN_BMI_FIFO_UNITS;
+
+	port->open_dmas.num =
+	get_dflt_num_of_open_dmas(port->rev_info.major,
+				  port->port_type, port->port_speed);
+	port->open_dmas.extra =
+	get_dflt_extra_num_of_open_dmas(port->rev_info.major,
+					port->port_type, port->port_speed);
+	port->tasks.num =
+	get_dflt_num_of_tasks(port->rev_info.major,
+			      port->port_type, port->port_speed);
+	port->tasks.extra =
+	get_dflt_extra_num_of_tasks(port->rev_info.major,
+				    port->port_type, port->port_speed);
+
+	/* FM_HEAVY_TRAFFIC_SEQUENCER_HANG_ERRATA_FMAN_A006981 errata
+	 * workaround
+	 */
+	if ((port->rev_info.major == 6) && (port->rev_info.minor == 0) &&
+	    (((port->port_type == FMAN_PORT_TYPE_TX) &&
+	    (port->port_speed == 1000)))) {
+		port->open_dmas.num = 16;
+		port->open_dmas.extra = 0;
+	}
+
+	if (port->rev_info.major >= 6 &&
+	    port->port_type == FMAN_PORT_TYPE_TX &&
+	    port->port_speed == 1000) {
+		/* FM_WRONG_RESET_VALUES_ERRATA_FMAN_A005127 Errata
+		 * workaround
+		 */
+		u32 reg;
+
+		reg = 0x00001013;
+		iowrite32be(reg, &port->bmi_regs->tx.fmbm_tfp);
+	}
+
+	return 0;
+
+err_port_cfg:
+	kfree(port->cfg);
+	return -EINVAL;
+}
+EXPORT_SYMBOL(fman_port_config);
+
+/**
+ * fman_port_use_kg_hash
+ * port:        A pointer to a FM Port module.
+ * Sets the HW KeyGen or the BMI as HW Parser next engine, enabling
+ * or bypassing the KeyGen hashing of Rx traffic
+ */
+void fman_port_use_kg_hash(struct fman_port *port, bool enable)
+{
+	if (enable)
+		/* After the Parser frames go to KeyGen */
+		iowrite32be(NIA_ENG_HWK, &port->bmi_regs->rx.fmbm_rfpne);
+	else
+		/* After the Parser frames go to BMI */
+		iowrite32be(NIA_ENG_BMI | NIA_BMI_AC_ENQ_FRAME,
+			    &port->bmi_regs->rx.fmbm_rfpne);
+}
+EXPORT_SYMBOL(fman_port_use_kg_hash);
+
+/**
+ * fman_port_init
+ * port:	A pointer to a FM Port module.
+ * Initializes the FM PORT module by defining the software structure and
+ * configuring the hardware registers.
+ *
+ * Return: 0 on success; Error code otherwise.
+ */
+int fman_port_init(struct fman_port *port)
+{
+	struct fman_port_init_params params;
+	struct fman_keygen *keygen;
+	struct fman_port_cfg *cfg;
+	int err;
+
+	if (is_init_done(port->cfg))
+		return -EINVAL;
+
+	err = fman_sp_build_buffer_struct(&port->cfg->int_context,
+					  &port->cfg->buffer_prefix_content,
+					  &port->cfg->buf_margins,
+					  &port->buffer_offsets,
+					  &port->internal_buf_offset);
+	if (err)
+		return err;
+
+	cfg = port->cfg;
+
+	if (port->port_type == FMAN_PORT_TYPE_RX) {
+		/* Call the external Buffer routine which also checks fifo
+		 * size and updates it if necessary
+		 */
+		/* define external buffer pools and pool depletion */
+		err = set_ext_buffer_pools(port);
+		if (err)
+			return err;
+		/* check if the largest external buffer pool is large enough */
+		if (cfg->buf_margins.start_margins + MIN_EXT_BUF_SIZE +
+		    cfg->buf_margins.end_margins >
+		    port->rx_pools_params.largest_buf_size) {
+			dev_err(port->dev, "%s: buf_margins.start_margins (%d) + minimum buf size (64) + buf_margins.end_margins (%d) is larger than maximum external buffer size (%d)\n",
+				__func__, cfg->buf_margins.start_margins,
+				cfg->buf_margins.end_margins,
+				port->rx_pools_params.largest_buf_size);
+			return -EINVAL;
+		}
+	}
+
+	/* Call FM module routine for communicating parameters */
+	memset(&params, 0, sizeof(params));
+	params.port_id = port->port_id;
+	params.port_type = port->port_type;
+	params.port_speed = port->port_speed;
+	params.num_of_tasks = (u8)port->tasks.num;
+	params.num_of_extra_tasks = (u8)port->tasks.extra;
+	params.num_of_open_dmas = (u8)port->open_dmas.num;
+	params.num_of_extra_open_dmas = (u8)port->open_dmas.extra;
+
+	if (port->fifo_bufs.num) {
+		err = verify_size_of_fifo(port);
+		if (err)
+			return err;
+	}
+	params.size_of_fifo = port->fifo_bufs.num;
+	params.extra_size_of_fifo = port->fifo_bufs.extra;
+	params.deq_pipeline_depth = port->cfg->tx_fifo_deq_pipeline_depth;
+	params.max_frame_length = port->max_frame_length;
+
+	err = fman_set_port_params(port->fm, &params);
+	if (err)
+		return err;
+
+	err = init_low_level_driver(port);
+	if (err)
+		return err;
+
+	if (port->cfg->pcd_fqs_count) {
+		keygen = port->dts_params.fman->keygen;
+		err = keygen_port_hashing_init(keygen, port->port_id,
+					       port->cfg->pcd_base_fqid,
+					       port->cfg->pcd_fqs_count);
+		if (err)
+			return err;
+
+		fman_port_use_kg_hash(port, true);
+	}
+
+	kfree(port->cfg);
+	port->cfg = NULL;
+
+	return 0;
+}
+EXPORT_SYMBOL(fman_port_init);
+
+/**
+ * fman_port_cfg_buf_prefix_content
+ * @port			A pointer to a FM Port module.
+ * @buffer_prefix_content	A structure of parameters describing
+ *				the structure of the buffer.
+ *				Out parameter:
+ *				Start margin - offset of data from
+ *				start of external buffer.
+ * Defines the structure, size and content of the application buffer.
+ * The prefix, in Tx ports, if 'pass_prs_result', the application should set
+ * a value to their offsets in the prefix of the FM will save the first
+ * 'priv_data_size', than, depending on 'pass_prs_result' and
+ * 'pass_time_stamp', copy parse result and timeStamp, and the packet itself
+ * (in this order), to the application buffer, and to offset.
+ * Calling this routine changes the buffer margins definitions in the internal
+ * driver data base from its default configuration:
+ * Data size:  [DEFAULT_PORT_BUFFER_PREFIX_CONTENT_PRIV_DATA_SIZE]
+ * Pass Parser result: [DEFAULT_PORT_BUFFER_PREFIX_CONTENT_PASS_PRS_RESULT].
+ * Pass timestamp: [DEFAULT_PORT_BUFFER_PREFIX_CONTENT_PASS_TIME_STAMP].
+ * May be used for all ports
+ *
+ * Allowed only following fman_port_config() and before fman_port_init().
+ *
+ * Return: 0 on success; Error code otherwise.
+ */
+int fman_port_cfg_buf_prefix_content(struct fman_port *port,
+				     struct fman_buffer_prefix_content *
+				     buffer_prefix_content)
+{
+	if (is_init_done(port->cfg))
+		return -EINVAL;
+
+	memcpy(&port->cfg->buffer_prefix_content,
+	       buffer_prefix_content,
+	       sizeof(struct fman_buffer_prefix_content));
+	/* if data_align was not initialized by user,
+	 * we return to driver's default
+	 */
+	if (!port->cfg->buffer_prefix_content.data_align)
+		port->cfg->buffer_prefix_content.data_align =
+		DFLT_PORT_BUFFER_PREFIX_CONTEXT_DATA_ALIGN;
+
+	return 0;
+}
+EXPORT_SYMBOL(fman_port_cfg_buf_prefix_content);
+
+/**
+ * fman_port_disable
+ * port:	A pointer to a FM Port module.
+ *
+ * Gracefully disable an FM port. The port will not start new	tasks after all
+ * tasks associated with the port are terminated.
+ *
+ * This is a blocking routine, it returns after port is gracefully stopped,
+ * i.e. the port will not except new frames, but it will finish all frames
+ * or tasks which were already began.
+ * Allowed only following fman_port_init().
+ *
+ * Return: 0 on success; Error code otherwise.
+ */
+int fman_port_disable(struct fman_port *port)
+{
+	u32 __iomem *bmi_cfg_reg, *bmi_status_reg;
+	u32 tmp;
+	bool rx_port, failure = false;
+	int count;
+
+	if (!is_init_done(port->cfg))
+		return -EINVAL;
+
+	switch (port->port_type) {
+	case FMAN_PORT_TYPE_RX:
+		bmi_cfg_reg = &port->bmi_regs->rx.fmbm_rcfg;
+		bmi_status_reg = &port->bmi_regs->rx.fmbm_rst;
+		rx_port = true;
+		break;
+	case FMAN_PORT_TYPE_TX:
+		bmi_cfg_reg = &port->bmi_regs->tx.fmbm_tcfg;
+		bmi_status_reg = &port->bmi_regs->tx.fmbm_tst;
+		rx_port = false;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Disable QMI */
+	if (!rx_port) {
+		tmp = ioread32be(&port->qmi_regs->fmqm_pnc) & ~QMI_PORT_CFG_EN;
+		iowrite32be(tmp, &port->qmi_regs->fmqm_pnc);
+
+		/* Wait for QMI to finish FD handling */
+		count = 100;
+		do {
+			udelay(10);
+			tmp = ioread32be(&port->qmi_regs->fmqm_pns);
+		} while ((tmp & QMI_PORT_STATUS_DEQ_FD_BSY) && --count);
+
+		if (count == 0) {
+			/* Timeout */
+			failure = true;
+		}
+	}
+
+	/* Disable BMI */
+	tmp = ioread32be(bmi_cfg_reg) & ~BMI_PORT_CFG_EN;
+	iowrite32be(tmp, bmi_cfg_reg);
+
+	/* Wait for graceful stop end */
+	count = 500;
+	do {
+		udelay(10);
+		tmp = ioread32be(bmi_status_reg);
+	} while ((tmp & BMI_PORT_STATUS_BSY) && --count);
+
+	if (count == 0) {
+		/* Timeout */
+		failure = true;
+	}
+
+	if (failure)
+		dev_dbg(port->dev, "%s: FMan Port[%d]: BMI or QMI is Busy. Port forced down\n",
+			__func__,  port->port_id);
+
+	return 0;
+}
+EXPORT_SYMBOL(fman_port_disable);
+
+/**
+ * fman_port_enable
+ * port:	A pointer to a FM Port module.
+ *
+ * A runtime routine provided to allow disable/enable of port.
+ *
+ * Allowed only following fman_port_init().
+ *
+ * Return: 0 on success; Error code otherwise.
+ */
+int fman_port_enable(struct fman_port *port)
+{
+	u32 __iomem *bmi_cfg_reg;
+	u32 tmp;
+	bool rx_port;
+
+	if (!is_init_done(port->cfg))
+		return -EINVAL;
+
+	switch (port->port_type) {
+	case FMAN_PORT_TYPE_RX:
+		bmi_cfg_reg = &port->bmi_regs->rx.fmbm_rcfg;
+		rx_port = true;
+		break;
+	case FMAN_PORT_TYPE_TX:
+		bmi_cfg_reg = &port->bmi_regs->tx.fmbm_tcfg;
+		rx_port = false;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Enable QMI */
+	if (!rx_port) {
+		tmp = ioread32be(&port->qmi_regs->fmqm_pnc) | QMI_PORT_CFG_EN;
+		iowrite32be(tmp, &port->qmi_regs->fmqm_pnc);
+	}
+
+	/* Enable BMI */
+	tmp = ioread32be(bmi_cfg_reg) | BMI_PORT_CFG_EN;
+	iowrite32be(tmp, bmi_cfg_reg);
+
+	return 0;
+}
+EXPORT_SYMBOL(fman_port_enable);
+
+/**
+ * fman_port_bind
+ * dev:		FMan Port OF device pointer
+ *
+ * Bind to a specific FMan Port.
+ *
+ * Allowed only after the port was created.
+ *
+ * Return: A pointer to the FMan port device.
+ */
+struct fman_port *fman_port_bind(struct device *dev)
+{
+	return (struct fman_port *)(dev_get_drvdata(get_device(dev)));
+}
+EXPORT_SYMBOL(fman_port_bind);
+
+/**
+ * fman_port_get_qman_channel_id
+ * port:	Pointer to the FMan port devuce
+ *
+ * Get the QMan channel ID for the specific port
+ *
+ * Return: QMan channel ID
+ */
+u32 fman_port_get_qman_channel_id(struct fman_port *port)
+{
+	return port->dts_params.qman_channel_id;
+}
+EXPORT_SYMBOL(fman_port_get_qman_channel_id);
+
+int fman_port_get_hash_result_offset(struct fman_port *port, u32 *offset)
+{
+	if (port->buffer_offsets.hash_result_offset == ILLEGAL_BASE)
+		return -EINVAL;
+
+	*offset = port->buffer_offsets.hash_result_offset;
+
+	return 0;
+}
+EXPORT_SYMBOL(fman_port_get_hash_result_offset);
+
+int fman_port_get_tstamp(struct fman_port *port, const void *data, u64 *tstamp)
+{
+	if (port->buffer_offsets.time_stamp_offset == ILLEGAL_BASE)
+		return -EINVAL;
+
+	*tstamp = be64_to_cpu(*(__be64 *)(data +
+			port->buffer_offsets.time_stamp_offset));
+
+	return 0;
+}
+EXPORT_SYMBOL(fman_port_get_tstamp);
+
+static int fman_port_probe(struct platform_device *of_dev)
+{
+	struct fman_port *port;
+	struct fman *fman;
+	struct device_node *fm_node, *port_node;
+	struct platform_device *fm_pdev;
+	struct resource res;
+	struct resource *dev_res;
+	u32 val;
+	int err = 0, lenp;
+	enum fman_port_type port_type;
+	u16 port_speed;
+	u8 port_id;
+
+	port = kzalloc(sizeof(*port), GFP_KERNEL);
+	if (!port)
+		return -ENOMEM;
+
+	port->dev = &of_dev->dev;
+
+	port_node = of_node_get(of_dev->dev.of_node);
+
+	/* Get the FM node */
+	fm_node = of_get_parent(port_node);
+	if (!fm_node) {
+		dev_err(port->dev, "%s: of_get_parent() failed\n", __func__);
+		err = -ENODEV;
+		goto return_err;
+	}
+
+	fm_pdev = of_find_device_by_node(fm_node);
+	of_node_put(fm_node);
+	if (!fm_pdev) {
+		err = -EINVAL;
+		goto return_err;
+	}
+
+	fman = dev_get_drvdata(&fm_pdev->dev);
+	if (!fman) {
+		err = -EINVAL;
+		goto put_device;
+	}
+
+	err = of_property_read_u32(port_node, "cell-index", &val);
+	if (err) {
+		dev_err(port->dev, "%s: reading cell-index for %pOF failed\n",
+			__func__, port_node);
+		err = -EINVAL;
+		goto put_device;
+	}
+	port_id = (u8)val;
+	port->dts_params.id = port_id;
+
+	if (of_device_is_compatible(port_node, "fsl,fman-v3-port-tx")) {
+		port_type = FMAN_PORT_TYPE_TX;
+		port_speed = 1000;
+		if (of_find_property(port_node, "fsl,fman-10g-port", &lenp))
+			port_speed = 10000;
+
+	} else if (of_device_is_compatible(port_node, "fsl,fman-v2-port-tx")) {
+		if (port_id >= TX_10G_PORT_BASE)
+			port_speed = 10000;
+		else
+			port_speed = 1000;
+		port_type = FMAN_PORT_TYPE_TX;
+
+	} else if (of_device_is_compatible(port_node, "fsl,fman-v3-port-rx")) {
+		port_type = FMAN_PORT_TYPE_RX;
+		port_speed = 1000;
+		if (of_find_property(port_node, "fsl,fman-10g-port", &lenp))
+			port_speed = 10000;
+
+	} else if (of_device_is_compatible(port_node, "fsl,fman-v2-port-rx")) {
+		if (port_id >= RX_10G_PORT_BASE)
+			port_speed = 10000;
+		else
+			port_speed = 1000;
+		port_type = FMAN_PORT_TYPE_RX;
+
+	}  else {
+		dev_err(port->dev, "%s: Illegal port type\n", __func__);
+		err = -EINVAL;
+		goto put_device;
+	}
+
+	port->dts_params.type = port_type;
+	port->dts_params.speed = port_speed;
+
+	if (port_type == FMAN_PORT_TYPE_TX) {
+		u32 qman_channel_id;
+
+		qman_channel_id = fman_get_qman_channel_id(fman, port_id);
+		if (qman_channel_id == 0) {
+			dev_err(port->dev, "%s: incorrect qman-channel-id\n",
+				__func__);
+			err = -EINVAL;
+			goto put_device;
+		}
+		port->dts_params.qman_channel_id = qman_channel_id;
+	}
+
+	err = of_address_to_resource(port_node, 0, &res);
+	if (err < 0) {
+		dev_err(port->dev, "%s: of_address_to_resource() failed\n",
+			__func__);
+		err = -ENOMEM;
+		goto put_device;
+	}
+
+	port->dts_params.fman = fman;
+
+	of_node_put(port_node);
+
+	dev_res = __devm_request_region(port->dev, &res, res.start,
+					resource_size(&res), "fman-port");
+	if (!dev_res) {
+		dev_err(port->dev, "%s: __devm_request_region() failed\n",
+			__func__);
+		err = -EINVAL;
+		goto free_port;
+	}
+
+	port->dts_params.base_addr = devm_ioremap(port->dev, res.start,
+						  resource_size(&res));
+	if (!port->dts_params.base_addr)
+		dev_err(port->dev, "%s: devm_ioremap() failed\n", __func__);
+
+	dev_set_drvdata(&of_dev->dev, port);
+
+	return 0;
+
+put_device:
+	put_device(&fm_pdev->dev);
+return_err:
+	of_node_put(port_node);
+free_port:
+	kfree(port);
+	return err;
+}
+
+static const struct of_device_id fman_port_match[] = {
+	{.compatible = "fsl,fman-v3-port-rx"},
+	{.compatible = "fsl,fman-v2-port-rx"},
+	{.compatible = "fsl,fman-v3-port-tx"},
+	{.compatible = "fsl,fman-v2-port-tx"},
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, fman_port_match);
+
+static struct platform_driver fman_port_driver = {
+	.driver = {
+		.name = "fsl-fman-port",
+		.of_match_table = fman_port_match,
+	},
+	.probe = fman_port_probe,
+};
+
+static int __init fman_port_load(void)
+{
+	int err;
+
+	pr_debug("FSL DPAA FMan driver\n");
+
+	err = platform_driver_register(&fman_port_driver);
+	if (err < 0)
+		pr_err("Error, platform_driver_register() = %d\n", err);
+
+	return err;
+}
+module_init(fman_port_load);
+
+static void __exit fman_port_unload(void)
+{
+	platform_driver_unregister(&fman_port_driver);
+}
+module_exit(fman_port_unload);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("Freescale DPAA Frame Manager Port driver");