drivers/net/ethernet/ezchip/nps_enet.h - linux-imx - Git at Google

 /*
  * Copyright(c) 2015 EZchip Technologies.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
  * version 2, as published by the Free Software Foundation.
  *
  * This program is distributed in the hope it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  * more details.
  *
  * The full GNU General Public License is included in this distribution in
  * the file called "COPYING".
  */

 #ifndef _NPS_ENET_H
 #define _NPS_ENET_H

 /* default values */
 #define NPS_ENET_NAPI_POLL_WEIGHT		0x2
 #define NPS_ENET_MAX_FRAME_LENGTH		0x3FFF
 #define NPS_ENET_GE_MAC_CFG_0_TX_FC_RETR	0x7
 #define NPS_ENET_GE_MAC_CFG_0_RX_IFG		0x5
 #define NPS_ENET_GE_MAC_CFG_0_TX_IFG		0xC
 #define NPS_ENET_GE_MAC_CFG_0_TX_PR_LEN		0x7
 #define NPS_ENET_GE_MAC_CFG_2_STAT_EN		0x3
 #define NPS_ENET_GE_MAC_CFG_3_RX_IFG_TH		0x14
 #define NPS_ENET_GE_MAC_CFG_3_MAX_LEN		0x3FFC
 #define NPS_ENET_ENABLE				1
 #define NPS_ENET_DISABLE			0

 /* register definitions  */
 #define NPS_ENET_REG_TX_CTL		0x800
 #define NPS_ENET_REG_TX_BUF		0x808
 #define NPS_ENET_REG_RX_CTL		0x810
 #define NPS_ENET_REG_RX_BUF		0x818
 #define NPS_ENET_REG_BUF_INT_ENABLE	0x8C0
 #define NPS_ENET_REG_GE_MAC_CFG_0	0x1000
 #define NPS_ENET_REG_GE_MAC_CFG_1	0x1004
 #define NPS_ENET_REG_GE_MAC_CFG_2	0x1008
 #define NPS_ENET_REG_GE_MAC_CFG_3	0x100C
 #define NPS_ENET_REG_GE_RST		0x1400
 #define NPS_ENET_REG_PHASE_FIFO_CTL	0x1404

 /* Tx control register masks and shifts */
 #define TX_CTL_NT_MASK 0x7FF
 #define TX_CTL_NT_SHIFT 0
 #define TX_CTL_ET_MASK 0x4000
 #define TX_CTL_ET_SHIFT 14
 #define TX_CTL_CT_MASK 0x8000
 #define TX_CTL_CT_SHIFT 15

 /* Rx control register masks and shifts */
 #define RX_CTL_NR_MASK 0x7FF
 #define RX_CTL_NR_SHIFT 0
 #define RX_CTL_CRC_MASK 0x2000
 #define RX_CTL_CRC_SHIFT 13
 #define RX_CTL_ER_MASK 0x4000
 #define RX_CTL_ER_SHIFT 14
 #define RX_CTL_CR_MASK 0x8000
 #define RX_CTL_CR_SHIFT 15

 /* Interrupt enable for data buffer events register masks and shifts */
 #define RX_RDY_MASK 0x1
 #define RX_RDY_SHIFT 0
 #define TX_DONE_MASK 0x2
 #define TX_DONE_SHIFT 1

 /* Gbps Eth MAC Configuration 0 register masks and shifts */
 #define CFG_0_RX_EN_MASK 0x1
 #define CFG_0_RX_EN_SHIFT 0
 #define CFG_0_TX_EN_MASK 0x2
 #define CFG_0_TX_EN_SHIFT 1
 #define CFG_0_TX_FC_EN_MASK 0x4
 #define CFG_0_TX_FC_EN_SHIFT 2
 #define CFG_0_TX_PAD_EN_MASK 0x8
 #define CFG_0_TX_PAD_EN_SHIFT 3
 #define CFG_0_TX_CRC_EN_MASK 0x10
 #define CFG_0_TX_CRC_EN_SHIFT 4
 #define CFG_0_RX_FC_EN_MASK 0x20
 #define CFG_0_RX_FC_EN_SHIFT 5
 #define CFG_0_RX_CRC_STRIP_MASK 0x40
 #define CFG_0_RX_CRC_STRIP_SHIFT 6
 #define CFG_0_RX_CRC_IGNORE_MASK 0x80
 #define CFG_0_RX_CRC_IGNORE_SHIFT 7
 #define CFG_0_RX_LENGTH_CHECK_EN_MASK 0x100
 #define CFG_0_RX_LENGTH_CHECK_EN_SHIFT 8
 #define CFG_0_TX_FC_RETR_MASK 0xE00
 #define CFG_0_TX_FC_RETR_SHIFT 9
 #define CFG_0_RX_IFG_MASK 0xF000
 #define CFG_0_RX_IFG_SHIFT 12
 #define CFG_0_TX_IFG_MASK 0x3F0000
 #define CFG_0_TX_IFG_SHIFT 16
 #define CFG_0_RX_PR_CHECK_EN_MASK 0x400000
 #define CFG_0_RX_PR_CHECK_EN_SHIFT 22
 #define CFG_0_NIB_MODE_MASK 0x800000
 #define CFG_0_NIB_MODE_SHIFT 23
 #define CFG_0_TX_IFG_NIB_MASK 0xF000000
 #define CFG_0_TX_IFG_NIB_SHIFT 24
 #define CFG_0_TX_PR_LEN_MASK 0xF0000000
 #define CFG_0_TX_PR_LEN_SHIFT 28

 /* Gbps Eth MAC Configuration 1 register masks and shifts */
 #define CFG_1_OCTET_0_MASK 0x000000FF
 #define CFG_1_OCTET_0_SHIFT 0
 #define CFG_1_OCTET_1_MASK 0x0000FF00
 #define CFG_1_OCTET_1_SHIFT 8
 #define CFG_1_OCTET_2_MASK 0x00FF0000
 #define CFG_1_OCTET_2_SHIFT 16
 #define CFG_1_OCTET_3_MASK 0xFF000000
 #define CFG_1_OCTET_3_SHIFT 24

 /* Gbps Eth MAC Configuration 2 register masks and shifts */
 #define CFG_2_OCTET_4_MASK 0x000000FF
 #define CFG_2_OCTET_4_SHIFT 0
 #define CFG_2_OCTET_5_MASK 0x0000FF00
 #define CFG_2_OCTET_5_SHIFT 8
 #define CFG_2_DISK_MC_MASK 0x00100000
 #define CFG_2_DISK_MC_SHIFT 20
 #define CFG_2_DISK_BC_MASK 0x00200000
 #define CFG_2_DISK_BC_SHIFT 21
 #define CFG_2_DISK_DA_MASK 0x00400000
 #define CFG_2_DISK_DA_SHIFT 22
 #define CFG_2_STAT_EN_MASK 0x3000000
 #define CFG_2_STAT_EN_SHIFT 24
 #define CFG_2_TRANSMIT_FLUSH_EN_MASK 0x80000000
 #define CFG_2_TRANSMIT_FLUSH_EN_SHIFT 31

 /* Gbps Eth MAC Configuration 3 register masks and shifts */
 #define CFG_3_TM_HD_MODE_MASK 0x1
 #define CFG_3_TM_HD_MODE_SHIFT 0
 #define CFG_3_RX_CBFC_EN_MASK 0x2
 #define CFG_3_RX_CBFC_EN_SHIFT 1
 #define CFG_3_RX_CBFC_REDIR_EN_MASK 0x4
 #define CFG_3_RX_CBFC_REDIR_EN_SHIFT 2
 #define CFG_3_REDIRECT_CBFC_SEL_MASK 0x18
 #define CFG_3_REDIRECT_CBFC_SEL_SHIFT 3
 #define CFG_3_CF_DROP_MASK 0x20
 #define CFG_3_CF_DROP_SHIFT 5
 #define CFG_3_CF_TIMEOUT_MASK 0x3C0
 #define CFG_3_CF_TIMEOUT_SHIFT 6
 #define CFG_3_RX_IFG_TH_MASK 0x7C00
 #define CFG_3_RX_IFG_TH_SHIFT 10
 #define CFG_3_TX_CBFC_EN_MASK 0x8000
 #define CFG_3_TX_CBFC_EN_SHIFT 15
 #define CFG_3_MAX_LEN_MASK 0x3FFF0000
 #define CFG_3_MAX_LEN_SHIFT 16
 #define CFG_3_EXT_OOB_CBFC_SEL_MASK 0xC0000000
 #define CFG_3_EXT_OOB_CBFC_SEL_SHIFT 30

 /* GE MAC, PCS reset control register masks and shifts */
 #define RST_SPCS_MASK 0x1
 #define RST_SPCS_SHIFT 0
 #define RST_GMAC_0_MASK 0x100
 #define RST_GMAC_0_SHIFT 8

 /* Tx phase sync FIFO control register masks and shifts */
 #define PHASE_FIFO_CTL_RST_MASK 0x1
 #define PHASE_FIFO_CTL_RST_SHIFT 0
 #define PHASE_FIFO_CTL_INIT_MASK 0x2
 #define PHASE_FIFO_CTL_INIT_SHIFT 1

 /**
  * struct nps_enet_priv - Storage of ENET's private information.
  * @regs_base:      Base address of ENET memory-mapped control registers.
  * @irq:            For RX/TX IRQ number.
  * @tx_skb:         socket buffer of sent frame.
  * @napi:           Structure for NAPI.
  */
 struct nps_enet_priv {
 	void __iomem *regs_base;
 	s32 irq;
 	struct sk_buff *tx_skb;
 	struct napi_struct napi;
 	u32 ge_mac_cfg_2_value;
 	u32 ge_mac_cfg_3_value;
 };

 /**
  * nps_reg_set - Sets ENET register with provided value.
  * @priv:       Pointer to EZchip ENET private data structure.
  * @reg:        Register offset from base address.
  * @value:      Value to set in register.
  */
 static inline void nps_enet_reg_set(struct nps_enet_priv *priv,
 				    s32 reg, s32 value)
 {
 	iowrite32be(value, priv->regs_base + reg);
 }

 /**
  * nps_reg_get - Gets value of specified ENET register.
  * @priv:       Pointer to EZchip ENET private data structure.
  * @reg:        Register offset from base address.
  *
  * returns:     Value of requested register.
  */
 static inline u32 nps_enet_reg_get(struct nps_enet_priv *priv, s32 reg)
 {
 	return ioread32be(priv->regs_base + reg);
 }

 #endif /* _NPS_ENET_H */
	/*
	* Copyright(c) 2015 EZchip Technologies.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms and conditions of the GNU General Public License,
	* version 2, as published by the Free Software Foundation.
	*
	* This program is distributed in the hope it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	* more details.
	*
	* The full GNU General Public License is included in this distribution in
	* the file called "COPYING".
	*/

	#ifndef _NPS_ENET_H
	#define _NPS_ENET_H

	/* default values */
	#define NPS_ENET_NAPI_POLL_WEIGHT 0x2
	#define NPS_ENET_MAX_FRAME_LENGTH 0x3FFF
	#define NPS_ENET_GE_MAC_CFG_0_TX_FC_RETR 0x7
	#define NPS_ENET_GE_MAC_CFG_0_RX_IFG 0x5
	#define NPS_ENET_GE_MAC_CFG_0_TX_IFG 0xC
	#define NPS_ENET_GE_MAC_CFG_0_TX_PR_LEN 0x7
	#define NPS_ENET_GE_MAC_CFG_2_STAT_EN 0x3
	#define NPS_ENET_GE_MAC_CFG_3_RX_IFG_TH 0x14
	#define NPS_ENET_GE_MAC_CFG_3_MAX_LEN 0x3FFC
	#define NPS_ENET_ENABLE 1
	#define NPS_ENET_DISABLE 0

	/* register definitions */
	#define NPS_ENET_REG_TX_CTL 0x800
	#define NPS_ENET_REG_TX_BUF 0x808
	#define NPS_ENET_REG_RX_CTL 0x810
	#define NPS_ENET_REG_RX_BUF 0x818
	#define NPS_ENET_REG_BUF_INT_ENABLE 0x8C0
	#define NPS_ENET_REG_GE_MAC_CFG_0 0x1000
	#define NPS_ENET_REG_GE_MAC_CFG_1 0x1004
	#define NPS_ENET_REG_GE_MAC_CFG_2 0x1008
	#define NPS_ENET_REG_GE_MAC_CFG_3 0x100C
	#define NPS_ENET_REG_GE_RST 0x1400
	#define NPS_ENET_REG_PHASE_FIFO_CTL 0x1404

	/* Tx control register masks and shifts */
	#define TX_CTL_NT_MASK 0x7FF
	#define TX_CTL_NT_SHIFT 0
	#define TX_CTL_ET_MASK 0x4000
	#define TX_CTL_ET_SHIFT 14
	#define TX_CTL_CT_MASK 0x8000
	#define TX_CTL_CT_SHIFT 15

	/* Rx control register masks and shifts */
	#define RX_CTL_NR_MASK 0x7FF
	#define RX_CTL_NR_SHIFT 0
	#define RX_CTL_CRC_MASK 0x2000
	#define RX_CTL_CRC_SHIFT 13
	#define RX_CTL_ER_MASK 0x4000
	#define RX_CTL_ER_SHIFT 14
	#define RX_CTL_CR_MASK 0x8000
	#define RX_CTL_CR_SHIFT 15

	/* Interrupt enable for data buffer events register masks and shifts */
	#define RX_RDY_MASK 0x1
	#define RX_RDY_SHIFT 0
	#define TX_DONE_MASK 0x2
	#define TX_DONE_SHIFT 1

	/* Gbps Eth MAC Configuration 0 register masks and shifts */
	#define CFG_0_RX_EN_MASK 0x1
	#define CFG_0_RX_EN_SHIFT 0
	#define CFG_0_TX_EN_MASK 0x2
	#define CFG_0_TX_EN_SHIFT 1
	#define CFG_0_TX_FC_EN_MASK 0x4
	#define CFG_0_TX_FC_EN_SHIFT 2
	#define CFG_0_TX_PAD_EN_MASK 0x8
	#define CFG_0_TX_PAD_EN_SHIFT 3
	#define CFG_0_TX_CRC_EN_MASK 0x10
	#define CFG_0_TX_CRC_EN_SHIFT 4
	#define CFG_0_RX_FC_EN_MASK 0x20
	#define CFG_0_RX_FC_EN_SHIFT 5
	#define CFG_0_RX_CRC_STRIP_MASK 0x40
	#define CFG_0_RX_CRC_STRIP_SHIFT 6
	#define CFG_0_RX_CRC_IGNORE_MASK 0x80
	#define CFG_0_RX_CRC_IGNORE_SHIFT 7
	#define CFG_0_RX_LENGTH_CHECK_EN_MASK 0x100
	#define CFG_0_RX_LENGTH_CHECK_EN_SHIFT 8
	#define CFG_0_TX_FC_RETR_MASK 0xE00
	#define CFG_0_TX_FC_RETR_SHIFT 9
	#define CFG_0_RX_IFG_MASK 0xF000
	#define CFG_0_RX_IFG_SHIFT 12
	#define CFG_0_TX_IFG_MASK 0x3F0000
	#define CFG_0_TX_IFG_SHIFT 16
	#define CFG_0_RX_PR_CHECK_EN_MASK 0x400000
	#define CFG_0_RX_PR_CHECK_EN_SHIFT 22
	#define CFG_0_NIB_MODE_MASK 0x800000
	#define CFG_0_NIB_MODE_SHIFT 23
	#define CFG_0_TX_IFG_NIB_MASK 0xF000000
	#define CFG_0_TX_IFG_NIB_SHIFT 24
	#define CFG_0_TX_PR_LEN_MASK 0xF0000000
	#define CFG_0_TX_PR_LEN_SHIFT 28

	/* Gbps Eth MAC Configuration 1 register masks and shifts */
	#define CFG_1_OCTET_0_MASK 0x000000FF
	#define CFG_1_OCTET_0_SHIFT 0
	#define CFG_1_OCTET_1_MASK 0x0000FF00
	#define CFG_1_OCTET_1_SHIFT 8
	#define CFG_1_OCTET_2_MASK 0x00FF0000
	#define CFG_1_OCTET_2_SHIFT 16
	#define CFG_1_OCTET_3_MASK 0xFF000000
	#define CFG_1_OCTET_3_SHIFT 24

	/* Gbps Eth MAC Configuration 2 register masks and shifts */
	#define CFG_2_OCTET_4_MASK 0x000000FF
	#define CFG_2_OCTET_4_SHIFT 0
	#define CFG_2_OCTET_5_MASK 0x0000FF00
	#define CFG_2_OCTET_5_SHIFT 8
	#define CFG_2_DISK_MC_MASK 0x00100000
	#define CFG_2_DISK_MC_SHIFT 20
	#define CFG_2_DISK_BC_MASK 0x00200000
	#define CFG_2_DISK_BC_SHIFT 21
	#define CFG_2_DISK_DA_MASK 0x00400000
	#define CFG_2_DISK_DA_SHIFT 22
	#define CFG_2_STAT_EN_MASK 0x3000000
	#define CFG_2_STAT_EN_SHIFT 24
	#define CFG_2_TRANSMIT_FLUSH_EN_MASK 0x80000000
	#define CFG_2_TRANSMIT_FLUSH_EN_SHIFT 31

	/* Gbps Eth MAC Configuration 3 register masks and shifts */
	#define CFG_3_TM_HD_MODE_MASK 0x1
	#define CFG_3_TM_HD_MODE_SHIFT 0
	#define CFG_3_RX_CBFC_EN_MASK 0x2
	#define CFG_3_RX_CBFC_EN_SHIFT 1
	#define CFG_3_RX_CBFC_REDIR_EN_MASK 0x4
	#define CFG_3_RX_CBFC_REDIR_EN_SHIFT 2
	#define CFG_3_REDIRECT_CBFC_SEL_MASK 0x18
	#define CFG_3_REDIRECT_CBFC_SEL_SHIFT 3
	#define CFG_3_CF_DROP_MASK 0x20
	#define CFG_3_CF_DROP_SHIFT 5
	#define CFG_3_CF_TIMEOUT_MASK 0x3C0
	#define CFG_3_CF_TIMEOUT_SHIFT 6
	#define CFG_3_RX_IFG_TH_MASK 0x7C00
	#define CFG_3_RX_IFG_TH_SHIFT 10
	#define CFG_3_TX_CBFC_EN_MASK 0x8000
	#define CFG_3_TX_CBFC_EN_SHIFT 15
	#define CFG_3_MAX_LEN_MASK 0x3FFF0000
	#define CFG_3_MAX_LEN_SHIFT 16
	#define CFG_3_EXT_OOB_CBFC_SEL_MASK 0xC0000000
	#define CFG_3_EXT_OOB_CBFC_SEL_SHIFT 30

	/* GE MAC, PCS reset control register masks and shifts */
	#define RST_SPCS_MASK 0x1
	#define RST_SPCS_SHIFT 0
	#define RST_GMAC_0_MASK 0x100
	#define RST_GMAC_0_SHIFT 8

	/* Tx phase sync FIFO control register masks and shifts */
	#define PHASE_FIFO_CTL_RST_MASK 0x1
	#define PHASE_FIFO_CTL_RST_SHIFT 0
	#define PHASE_FIFO_CTL_INIT_MASK 0x2
	#define PHASE_FIFO_CTL_INIT_SHIFT 1

	/**
	* struct nps_enet_priv - Storage of ENET's private information.
	* @regs_base: Base address of ENET memory-mapped control registers.
	* @irq: For RX/TX IRQ number.
	* @tx_skb: socket buffer of sent frame.
	* @napi: Structure for NAPI.
	*/
	struct nps_enet_priv {
	void __iomem *regs_base;
	s32 irq;
	struct sk_buff *tx_skb;
	struct napi_struct napi;
	u32 ge_mac_cfg_2_value;
	u32 ge_mac_cfg_3_value;
	};

	/**
	* nps_reg_set - Sets ENET register with provided value.
	* @priv: Pointer to EZchip ENET private data structure.
	* @reg: Register offset from base address.
	* @value: Value to set in register.
	*/
	static inline void nps_enet_reg_set(struct nps_enet_priv *priv,
	s32 reg, s32 value)
	{
	iowrite32be(value, priv->regs_base + reg);
	}

	/**
	* nps_reg_get - Gets value of specified ENET register.
	* @priv: Pointer to EZchip ENET private data structure.
	* @reg: Register offset from base address.
	*
	* returns: Value of requested register.
	*/
	static inline u32 nps_enet_reg_get(struct nps_enet_priv *priv, s32 reg)
	{
	return ioread32be(priv->regs_base + reg);
	}

	#endif /* _NPS_ENET_H */