drivers/net/ethernet/micrel/ks8851.h - linux - Git at Google

 /* SPDX-License-Identifier: GPL-2.0-only */
 /* drivers/net/ethernet/micrel/ks8851.h
  *
  * Copyright 2009 Simtec Electronics
  *      Ben Dooks <ben@simtec.co.uk>
  *
  * KS8851 register definitions
 */

 #ifndef __KS8851_H__
 #define __KS8851_H__

 #include <linux/eeprom_93cx6.h>

 #define KS_CCR					0x08
 #define CCR_LE					(1 << 10)   /* KSZ8851-16MLL */
 #define CCR_EEPROM				(1 << 9)
 #define CCR_SPI					(1 << 8)    /* KSZ8851SNL    */
 #define CCR_8BIT				(1 << 7)    /* KSZ8851-16MLL */
 #define CCR_16BIT				(1 << 6)    /* KSZ8851-16MLL */
 #define CCR_32BIT				(1 << 5)    /* KSZ8851-16MLL */
 #define CCR_SHARED				(1 << 4)    /* KSZ8851-16MLL */
 #define CCR_48PIN				(1 << 1)    /* KSZ8851-16MLL */
 #define CCR_32PIN				(1 << 0)    /* KSZ8851SNL    */

 /* MAC address registers */
 #define KS_MAR(_m)				(0x14 - (_m))
 #define KS_MARL					0x10
 #define KS_MARM					0x12
 #define KS_MARH					0x14

 #define KS_OBCR					0x20
 #define OBCR_ODS_16mA				(1 << 6)

 #define KS_EEPCR				0x22
 #define EEPCR_EESRWA				(1 << 5)
 #define EEPCR_EESA				(1 << 4)
 #define EEPCR_EESB				(1 << 3)
 #define EEPCR_EEDO				(1 << 2)
 #define EEPCR_EESCK				(1 << 1)
 #define EEPCR_EECS				(1 << 0)

 #define KS_MBIR					0x24
 #define MBIR_TXMBF				(1 << 12)
 #define MBIR_TXMBFA				(1 << 11)
 #define MBIR_RXMBF				(1 << 4)
 #define MBIR_RXMBFA				(1 << 3)

 #define KS_GRR					0x26
 #define GRR_QMU					(1 << 1)
 #define GRR_GSR					(1 << 0)

 #define KS_WFCR					0x2A
 #define WFCR_MPRXE				(1 << 7)
 #define WFCR_WF3E				(1 << 3)
 #define WFCR_WF2E				(1 << 2)
 #define WFCR_WF1E				(1 << 1)
 #define WFCR_WF0E				(1 << 0)

 #define KS_WF0CRC0				0x30
 #define KS_WF0CRC1				0x32
 #define KS_WF0BM0				0x34
 #define KS_WF0BM1				0x36
 #define KS_WF0BM2				0x38
 #define KS_WF0BM3				0x3A

 #define KS_WF1CRC0				0x40
 #define KS_WF1CRC1				0x42
 #define KS_WF1BM0				0x44
 #define KS_WF1BM1				0x46
 #define KS_WF1BM2				0x48
 #define KS_WF1BM3				0x4A

 #define KS_WF2CRC0				0x50
 #define KS_WF2CRC1				0x52
 #define KS_WF2BM0				0x54
 #define KS_WF2BM1				0x56
 #define KS_WF2BM2				0x58
 #define KS_WF2BM3				0x5A

 #define KS_WF3CRC0				0x60
 #define KS_WF3CRC1				0x62
 #define KS_WF3BM0				0x64
 #define KS_WF3BM1				0x66
 #define KS_WF3BM2				0x68
 #define KS_WF3BM3				0x6A

 #define KS_TXCR					0x70
 #define TXCR_TCGICMP				(1 << 8)
 #define TXCR_TCGUDP				(1 << 7)
 #define TXCR_TCGTCP				(1 << 6)
 #define TXCR_TCGIP				(1 << 5)
 #define TXCR_FTXQ				(1 << 4)
 #define TXCR_TXFCE				(1 << 3)
 #define TXCR_TXPE				(1 << 2)
 #define TXCR_TXCRC				(1 << 1)
 #define TXCR_TXE				(1 << 0)

 #define KS_TXSR					0x72
 #define TXSR_TXLC				(1 << 13)
 #define TXSR_TXMC				(1 << 12)
 #define TXSR_TXFID_MASK				(0x3f << 0)
 #define TXSR_TXFID_SHIFT			(0)
 #define TXSR_TXFID_GET(_v)			(((_v) >> 0) & 0x3f)

 #define KS_RXCR1				0x74
 #define RXCR1_FRXQ				(1 << 15)
 #define RXCR1_RXUDPFCC				(1 << 14)
 #define RXCR1_RXTCPFCC				(1 << 13)
 #define RXCR1_RXIPFCC				(1 << 12)
 #define RXCR1_RXPAFMA				(1 << 11)
 #define RXCR1_RXFCE				(1 << 10)
 #define RXCR1_RXEFE				(1 << 9)
 #define RXCR1_RXMAFMA				(1 << 8)
 #define RXCR1_RXBE				(1 << 7)
 #define RXCR1_RXME				(1 << 6)
 #define RXCR1_RXUE				(1 << 5)
 #define RXCR1_RXAE				(1 << 4)
 #define RXCR1_RXINVF				(1 << 1)
 #define RXCR1_RXE				(1 << 0)

 #define KS_RXCR2				0x76
 #define RXCR2_SRDBL_MASK			(0x7 << 5)  /* KSZ8851SNL    */
 #define RXCR2_SRDBL_SHIFT			(5)	    /* KSZ8851SNL    */
 #define RXCR2_SRDBL_4B				(0x0 << 5)  /* KSZ8851SNL    */
 #define RXCR2_SRDBL_8B				(0x1 << 5)  /* KSZ8851SNL    */
 #define RXCR2_SRDBL_16B				(0x2 << 5)  /* KSZ8851SNL    */
 #define RXCR2_SRDBL_32B				(0x3 << 5)  /* KSZ8851SNL    */
 #define RXCR2_SRDBL_FRAME			(0x4 << 5)  /* KSZ8851SNL    */
 #define RXCR2_IUFFP				(1 << 4)
 #define RXCR2_RXIUFCEZ				(1 << 3)
 #define RXCR2_UDPLFE				(1 << 2)
 #define RXCR2_RXICMPFCC				(1 << 1)
 #define RXCR2_RXSAF				(1 << 0)

 #define KS_TXMIR				0x78

 #define KS_RXFHSR				0x7C
 #define RXFSHR_RXFV				(1 << 15)
 #define RXFSHR_RXICMPFCS			(1 << 13)
 #define RXFSHR_RXIPFCS				(1 << 12)
 #define RXFSHR_RXTCPFCS				(1 << 11)
 #define RXFSHR_RXUDPFCS				(1 << 10)
 #define RXFSHR_RXBF				(1 << 7)
 #define RXFSHR_RXMF				(1 << 6)
 #define RXFSHR_RXUF				(1 << 5)
 #define RXFSHR_RXMR				(1 << 4)
 #define RXFSHR_RXFT				(1 << 3)
 #define RXFSHR_RXFTL				(1 << 2)
 #define RXFSHR_RXRF				(1 << 1)
 #define RXFSHR_RXCE				(1 << 0)

 #define KS_RXFHBCR				0x7E
 #define RXFHBCR_CNT_MASK			(0xfff << 0)

 #define KS_TXQCR				0x80
 #define TXQCR_AETFE				(1 << 2)    /* KSZ8851SNL    */
 #define TXQCR_TXQMAM				(1 << 1)
 #define TXQCR_METFE				(1 << 0)

 #define KS_RXQCR				0x82
 #define RXQCR_RXDTTS				(1 << 12)
 #define RXQCR_RXDBCTS				(1 << 11)
 #define RXQCR_RXFCTS				(1 << 10)
 #define RXQCR_RXIPHTOE				(1 << 9)
 #define RXQCR_RXDTTE				(1 << 7)
 #define RXQCR_RXDBCTE				(1 << 6)
 #define RXQCR_RXFCTE				(1 << 5)
 #define RXQCR_ADRFE				(1 << 4)
 #define RXQCR_SDA				(1 << 3)
 #define RXQCR_RRXEF				(1 << 0)

 #define KS_TXFDPR				0x84
 #define TXFDPR_TXFPAI				(1 << 14)
 #define TXFDPR_TXFP_MASK			(0x7ff << 0)
 #define TXFDPR_TXFP_SHIFT			(0)

 #define KS_RXFDPR				0x86
 #define RXFDPR_RXFPAI				(1 << 14)
 #define RXFDPR_WST				(1 << 12)   /* KSZ8851-16MLL */
 #define RXFDPR_EMS				(1 << 11)   /* KSZ8851-16MLL */
 #define RXFDPR_RXFP_MASK			(0x7ff << 0)
 #define RXFDPR_RXFP_SHIFT			(0)

 #define KS_RXDTTR				0x8C
 #define KS_RXDBCTR				0x8E

 #define KS_IER					0x90
 #define KS_ISR					0x92
 #define IRQ_LCI					(1 << 15)
 #define IRQ_TXI					(1 << 14)
 #define IRQ_RXI					(1 << 13)
 #define IRQ_RXOI				(1 << 11)
 #define IRQ_TXPSI				(1 << 9)
 #define IRQ_RXPSI				(1 << 8)
 #define IRQ_TXSAI				(1 << 6)
 #define IRQ_RXWFDI				(1 << 5)
 #define IRQ_RXMPDI				(1 << 4)
 #define IRQ_LDI					(1 << 3)
 #define IRQ_EDI					(1 << 2)
 #define IRQ_SPIBEI				(1 << 1)    /* KSZ8851SNL    */
 #define IRQ_DEDI				(1 << 0)

 #define KS_RXFCTR				0x9C
 #define KS_RXFC					0x9D
 #define RXFCTR_RXFC_MASK			(0xff << 8)
 #define RXFCTR_RXFC_SHIFT			(8)
 #define RXFCTR_RXFC_GET(_v)			(((_v) >> 8) & 0xff)
 #define RXFCTR_RXFCT_MASK			(0xff << 0)
 #define RXFCTR_RXFCT_SHIFT			(0)

 #define KS_TXNTFSR				0x9E

 #define KS_MAHTR0				0xA0
 #define KS_MAHTR1				0xA2
 #define KS_MAHTR2				0xA4
 #define KS_MAHTR3				0xA6

 #define KS_FCLWR				0xB0
 #define KS_FCHWR				0xB2
 #define KS_FCOWR				0xB4

 #define KS_CIDER				0xC0
 #define CIDER_ID				0x8870
 #define CIDER_REV_MASK				(0x7 << 1)
 #define CIDER_REV_SHIFT				(1)
 #define CIDER_REV_GET(_v)			(((_v) >> 1) & 0x7)

 #define KS_CGCR					0xC6

 #define KS_IACR					0xC8
 #define IACR_RDEN				(1 << 12)
 #define IACR_TSEL_MASK				(0x3 << 10)
 #define IACR_TSEL_SHIFT				(10)
 #define IACR_TSEL_MIB				(0x3 << 10)
 #define IACR_ADDR_MASK				(0x1f << 0)
 #define IACR_ADDR_SHIFT				(0)

 #define KS_IADLR				0xD0
 #define KS_IAHDR				0xD2

 #define KS_PMECR				0xD4
 #define PMECR_PME_DELAY				(1 << 14)
 #define PMECR_PME_POL				(1 << 12)
 #define PMECR_WOL_WAKEUP			(1 << 11)
 #define PMECR_WOL_MAGICPKT			(1 << 10)
 #define PMECR_WOL_LINKUP			(1 << 9)
 #define PMECR_WOL_ENERGY			(1 << 8)
 #define PMECR_AUTO_WAKE_EN			(1 << 7)
 #define PMECR_WAKEUP_NORMAL			(1 << 6)
 #define PMECR_WKEVT_MASK			(0xf << 2)
 #define PMECR_WKEVT_SHIFT			(2)
 #define PMECR_WKEVT_GET(_v)			(((_v) >> 2) & 0xf)
 #define PMECR_WKEVT_ENERGY			(0x1 << 2)
 #define PMECR_WKEVT_LINK			(0x2 << 2)
 #define PMECR_WKEVT_MAGICPKT			(0x4 << 2)
 #define PMECR_WKEVT_FRAME			(0x8 << 2)
 #define PMECR_PM_MASK				(0x3 << 0)
 #define PMECR_PM_SHIFT				(0)
 #define PMECR_PM_NORMAL				(0x0 << 0)
 #define PMECR_PM_ENERGY				(0x1 << 0)
 #define PMECR_PM_SOFTDOWN			(0x2 << 0)
 #define PMECR_PM_POWERSAVE			(0x3 << 0)

 /* Standard MII PHY data */
 #define KS_P1MBCR				0xE4
 #define KS_P1MBSR				0xE6
 #define KS_PHY1ILR				0xE8
 #define KS_PHY1IHR				0xEA
 #define KS_P1ANAR				0xEC
 #define KS_P1ANLPR				0xEE

 #define KS_P1SCLMD				0xF4

 #define KS_P1CR					0xF6
 #define P1CR_LEDOFF				(1 << 15)
 #define P1CR_TXIDS				(1 << 14)
 #define P1CR_RESTARTAN				(1 << 13)
 #define P1CR_DISAUTOMDIX			(1 << 10)
 #define P1CR_FORCEMDIX				(1 << 9)
 #define P1CR_AUTONEGEN				(1 << 7)
 #define P1CR_FORCE100				(1 << 6)
 #define P1CR_FORCEFDX				(1 << 5)
 #define P1CR_ADV_FLOW				(1 << 4)
 #define P1CR_ADV_100BT_FDX			(1 << 3)
 #define P1CR_ADV_100BT_HDX			(1 << 2)
 #define P1CR_ADV_10BT_FDX			(1 << 1)
 #define P1CR_ADV_10BT_HDX			(1 << 0)

 #define KS_P1SR					0xF8
 #define P1SR_HP_MDIX				(1 << 15)
 #define P1SR_REV_POL				(1 << 13)
 #define P1SR_OP_100M				(1 << 10)
 #define P1SR_OP_FDX				(1 << 9)
 #define P1SR_OP_MDI				(1 << 7)
 #define P1SR_AN_DONE				(1 << 6)
 #define P1SR_LINK_GOOD				(1 << 5)
 #define P1SR_PNTR_FLOW				(1 << 4)
 #define P1SR_PNTR_100BT_FDX			(1 << 3)
 #define P1SR_PNTR_100BT_HDX			(1 << 2)
 #define P1SR_PNTR_10BT_FDX			(1 << 1)
 #define P1SR_PNTR_10BT_HDX			(1 << 0)

 /* TX Frame control */
 #define TXFR_TXIC				(1 << 15)
 #define TXFR_TXFID_MASK				(0x3f << 0)
 #define TXFR_TXFID_SHIFT			(0)

 /**
  * struct ks8851_rxctrl - KS8851 driver rx control
  * @mchash: Multicast hash-table data.
  * @rxcr1: KS_RXCR1 register setting
  * @rxcr2: KS_RXCR2 register setting
  *
  * Representation of the settings needs to control the receive filtering
  * such as the multicast hash-filter and the receive register settings. This
  * is used to make the job of working out if the receive settings change and
  * then issuing the new settings to the worker that will send the necessary
  * commands.
  */
 struct ks8851_rxctrl {
 	u16	mchash[4];
 	u16	rxcr1;
 	u16	rxcr2;
 };

 /**
  * union ks8851_tx_hdr - tx header data
  * @txb: The header as bytes
  * @txw: The header as 16bit, little-endian words
  *
  * A dual representation of the tx header data to allow
  * access to individual bytes, and to allow 16bit accesses
  * with 16bit alignment.
  */
 union ks8851_tx_hdr {
 	u8	txb[6];
 	__le16	txw[3];
 };

 /**
  * struct ks8851_net - KS8851 driver private data
  * @netdev: The network device we're bound to
  * @statelock: Lock on this structure for tx list.
  * @mii: The MII state information for the mii calls.
  * @rxctrl: RX settings for @rxctrl_work.
  * @rxctrl_work: Work queue for updating RX mode and multicast lists
  * @txq: Queue of packets for transmission.
  * @txh: Space for generating packet TX header in DMA-able data
  * @rxd: Space for receiving SPI data, in DMA-able space.
  * @txd: Space for transmitting SPI data, in DMA-able space.
  * @msg_enable: The message flags controlling driver output (see ethtool).
  * @fid: Incrementing frame id tag.
  * @rc_ier: Cached copy of KS_IER.
  * @rc_ccr: Cached copy of KS_CCR.
  * @rc_rxqcr: Cached copy of KS_RXQCR.
  * @eeprom: 93CX6 EEPROM state for accessing on-board EEPROM.
  * @vdd_reg:	Optional regulator supplying the chip
  * @vdd_io: Optional digital power supply for IO
  * @gpio: Optional reset_n gpio
  * @mii_bus: Pointer to MII bus structure
  * @lock: Bus access lock callback
  * @unlock: Bus access unlock callback
  * @rdreg16: 16bit register read callback
  * @wrreg16: 16bit register write callback
  * @rdfifo: FIFO read callback
  * @wrfifo: FIFO write callback
  * @start_xmit: start_xmit() implementation callback
  * @rx_skb: rx_skb() implementation callback
  * @flush_tx_work: flush_tx_work() implementation callback
  *
  * The @statelock is used to protect information in the structure which may
  * need to be accessed via several sources, such as the network driver layer
  * or one of the work queues.
  *
  * We align the buffers we may use for rx/tx to ensure that if the SPI driver
  * wants to DMA map them, it will not have any problems with data the driver
  * modifies.
  */
 struct ks8851_net {
 	struct net_device	*netdev;
 	spinlock_t		statelock;

 	union ks8851_tx_hdr	txh ____cacheline_aligned;
 	u8			rxd[8];
 	u8			txd[8];

 	u32			msg_enable ____cacheline_aligned;
 	u16			tx_space;
 	u8			fid;

 	u16			rc_ier;
 	u16			rc_rxqcr;
 	u16			rc_ccr;

 	struct mii_if_info	mii;
 	struct ks8851_rxctrl	rxctrl;

 	struct work_struct	rxctrl_work;

 	struct sk_buff_head	txq;

 	struct eeprom_93cx6	eeprom;
 	struct regulator	*vdd_reg;
 	struct regulator	*vdd_io;
 	int			gpio;
 	struct mii_bus		*mii_bus;

 	void			(*lock)(struct ks8851_net *ks,
 					unsigned long *flags);
 	void			(*unlock)(struct ks8851_net *ks,
 					  unsigned long *flags);
 	unsigned int		(*rdreg16)(struct ks8851_net *ks,
 					   unsigned int reg);
 	void			(*wrreg16)(struct ks8851_net *ks,
 					   unsigned int reg, unsigned int val);
 	void			(*rdfifo)(struct ks8851_net *ks, u8 *buff,
 					  unsigned int len);
 	void			(*wrfifo)(struct ks8851_net *ks,
 					  struct sk_buff *txp, bool irq);
 	netdev_tx_t		(*start_xmit)(struct sk_buff *skb,
 					      struct net_device *dev);
 	void			(*rx_skb)(struct ks8851_net *ks,
 					  struct sk_buff *skb);
 	void			(*flush_tx_work)(struct ks8851_net *ks);
 };

 int ks8851_probe_common(struct net_device *netdev, struct device *dev,
 			int msg_en);
 void ks8851_remove_common(struct device *dev);
 int ks8851_suspend(struct device *dev);
 int ks8851_resume(struct device *dev);

 static __maybe_unused SIMPLE_DEV_PM_OPS(ks8851_pm_ops,
 					ks8851_suspend, ks8851_resume);

 /**
  * ks8851_done_tx - update and then free skbuff after transmitting
  * @ks: The device state
  * @txb: The buffer transmitted
  */
 static void __maybe_unused ks8851_done_tx(struct ks8851_net *ks,
 					  struct sk_buff *txb)
 {
 	struct net_device *dev = ks->netdev;

 	dev->stats.tx_bytes += txb->len;
 	dev->stats.tx_packets++;

 	dev_kfree_skb(txb);
 }

 #endif /* __KS8851_H__ */
	/* SPDX-License-Identifier: GPL-2.0-only */
	/* drivers/net/ethernet/micrel/ks8851.h
	*
	* Copyright 2009 Simtec Electronics
	* Ben Dooks <ben@simtec.co.uk>
	*
	* KS8851 register definitions
	*/

	#ifndef __KS8851_H__
	#define __KS8851_H__

	#include <linux/eeprom_93cx6.h>

	#define KS_CCR 0x08
	#define CCR_LE (1 << 10) /* KSZ8851-16MLL */
	#define CCR_EEPROM (1 << 9)
	#define CCR_SPI (1 << 8) /* KSZ8851SNL */
	#define CCR_8BIT (1 << 7) /* KSZ8851-16MLL */
	#define CCR_16BIT (1 << 6) /* KSZ8851-16MLL */
	#define CCR_32BIT (1 << 5) /* KSZ8851-16MLL */
	#define CCR_SHARED (1 << 4) /* KSZ8851-16MLL */
	#define CCR_48PIN (1 << 1) /* KSZ8851-16MLL */
	#define CCR_32PIN (1 << 0) /* KSZ8851SNL */

	/* MAC address registers */
	#define KS_MAR(_m) (0x14 - (_m))
	#define KS_MARL 0x10
	#define KS_MARM 0x12
	#define KS_MARH 0x14

	#define KS_OBCR 0x20
	#define OBCR_ODS_16mA (1 << 6)

	#define KS_EEPCR 0x22
	#define EEPCR_EESRWA (1 << 5)
	#define EEPCR_EESA (1 << 4)
	#define EEPCR_EESB (1 << 3)
	#define EEPCR_EEDO (1 << 2)
	#define EEPCR_EESCK (1 << 1)
	#define EEPCR_EECS (1 << 0)

	#define KS_MBIR 0x24
	#define MBIR_TXMBF (1 << 12)
	#define MBIR_TXMBFA (1 << 11)
	#define MBIR_RXMBF (1 << 4)
	#define MBIR_RXMBFA (1 << 3)

	#define KS_GRR 0x26
	#define GRR_QMU (1 << 1)
	#define GRR_GSR (1 << 0)

	#define KS_WFCR 0x2A
	#define WFCR_MPRXE (1 << 7)
	#define WFCR_WF3E (1 << 3)
	#define WFCR_WF2E (1 << 2)
	#define WFCR_WF1E (1 << 1)
	#define WFCR_WF0E (1 << 0)

	#define KS_WF0CRC0 0x30
	#define KS_WF0CRC1 0x32
	#define KS_WF0BM0 0x34
	#define KS_WF0BM1 0x36
	#define KS_WF0BM2 0x38
	#define KS_WF0BM3 0x3A

	#define KS_WF1CRC0 0x40
	#define KS_WF1CRC1 0x42
	#define KS_WF1BM0 0x44
	#define KS_WF1BM1 0x46
	#define KS_WF1BM2 0x48
	#define KS_WF1BM3 0x4A

	#define KS_WF2CRC0 0x50
	#define KS_WF2CRC1 0x52
	#define KS_WF2BM0 0x54
	#define KS_WF2BM1 0x56
	#define KS_WF2BM2 0x58
	#define KS_WF2BM3 0x5A

	#define KS_WF3CRC0 0x60
	#define KS_WF3CRC1 0x62
	#define KS_WF3BM0 0x64
	#define KS_WF3BM1 0x66
	#define KS_WF3BM2 0x68
	#define KS_WF3BM3 0x6A

	#define KS_TXCR 0x70
	#define TXCR_TCGICMP (1 << 8)
	#define TXCR_TCGUDP (1 << 7)
	#define TXCR_TCGTCP (1 << 6)
	#define TXCR_TCGIP (1 << 5)
	#define TXCR_FTXQ (1 << 4)
	#define TXCR_TXFCE (1 << 3)
	#define TXCR_TXPE (1 << 2)
	#define TXCR_TXCRC (1 << 1)
	#define TXCR_TXE (1 << 0)

	#define KS_TXSR 0x72
	#define TXSR_TXLC (1 << 13)
	#define TXSR_TXMC (1 << 12)
	#define TXSR_TXFID_MASK (0x3f << 0)
	#define TXSR_TXFID_SHIFT (0)
	#define TXSR_TXFID_GET(_v) (((_v) >> 0) & 0x3f)

	#define KS_RXCR1 0x74
	#define RXCR1_FRXQ (1 << 15)
	#define RXCR1_RXUDPFCC (1 << 14)
	#define RXCR1_RXTCPFCC (1 << 13)
	#define RXCR1_RXIPFCC (1 << 12)
	#define RXCR1_RXPAFMA (1 << 11)
	#define RXCR1_RXFCE (1 << 10)
	#define RXCR1_RXEFE (1 << 9)
	#define RXCR1_RXMAFMA (1 << 8)
	#define RXCR1_RXBE (1 << 7)
	#define RXCR1_RXME (1 << 6)
	#define RXCR1_RXUE (1 << 5)
	#define RXCR1_RXAE (1 << 4)
	#define RXCR1_RXINVF (1 << 1)
	#define RXCR1_RXE (1 << 0)

	#define KS_RXCR2 0x76
	#define RXCR2_SRDBL_MASK (0x7 << 5) /* KSZ8851SNL */
	#define RXCR2_SRDBL_SHIFT (5) /* KSZ8851SNL */
	#define RXCR2_SRDBL_4B (0x0 << 5) /* KSZ8851SNL */
	#define RXCR2_SRDBL_8B (0x1 << 5) /* KSZ8851SNL */
	#define RXCR2_SRDBL_16B (0x2 << 5) /* KSZ8851SNL */
	#define RXCR2_SRDBL_32B (0x3 << 5) /* KSZ8851SNL */
	#define RXCR2_SRDBL_FRAME (0x4 << 5) /* KSZ8851SNL */
	#define RXCR2_IUFFP (1 << 4)
	#define RXCR2_RXIUFCEZ (1 << 3)
	#define RXCR2_UDPLFE (1 << 2)
	#define RXCR2_RXICMPFCC (1 << 1)
	#define RXCR2_RXSAF (1 << 0)

	#define KS_TXMIR 0x78

	#define KS_RXFHSR 0x7C
	#define RXFSHR_RXFV (1 << 15)
	#define RXFSHR_RXICMPFCS (1 << 13)
	#define RXFSHR_RXIPFCS (1 << 12)
	#define RXFSHR_RXTCPFCS (1 << 11)
	#define RXFSHR_RXUDPFCS (1 << 10)
	#define RXFSHR_RXBF (1 << 7)
	#define RXFSHR_RXMF (1 << 6)
	#define RXFSHR_RXUF (1 << 5)
	#define RXFSHR_RXMR (1 << 4)
	#define RXFSHR_RXFT (1 << 3)
	#define RXFSHR_RXFTL (1 << 2)
	#define RXFSHR_RXRF (1 << 1)
	#define RXFSHR_RXCE (1 << 0)

	#define KS_RXFHBCR 0x7E
	#define RXFHBCR_CNT_MASK (0xfff << 0)

	#define KS_TXQCR 0x80
	#define TXQCR_AETFE (1 << 2) /* KSZ8851SNL */
	#define TXQCR_TXQMAM (1 << 1)
	#define TXQCR_METFE (1 << 0)

	#define KS_RXQCR 0x82
	#define RXQCR_RXDTTS (1 << 12)
	#define RXQCR_RXDBCTS (1 << 11)
	#define RXQCR_RXFCTS (1 << 10)
	#define RXQCR_RXIPHTOE (1 << 9)
	#define RXQCR_RXDTTE (1 << 7)
	#define RXQCR_RXDBCTE (1 << 6)
	#define RXQCR_RXFCTE (1 << 5)
	#define RXQCR_ADRFE (1 << 4)
	#define RXQCR_SDA (1 << 3)
	#define RXQCR_RRXEF (1 << 0)

	#define KS_TXFDPR 0x84
	#define TXFDPR_TXFPAI (1 << 14)
	#define TXFDPR_TXFP_MASK (0x7ff << 0)
	#define TXFDPR_TXFP_SHIFT (0)

	#define KS_RXFDPR 0x86
	#define RXFDPR_RXFPAI (1 << 14)
	#define RXFDPR_WST (1 << 12) /* KSZ8851-16MLL */
	#define RXFDPR_EMS (1 << 11) /* KSZ8851-16MLL */
	#define RXFDPR_RXFP_MASK (0x7ff << 0)
	#define RXFDPR_RXFP_SHIFT (0)

	#define KS_RXDTTR 0x8C
	#define KS_RXDBCTR 0x8E

	#define KS_IER 0x90
	#define KS_ISR 0x92
	#define IRQ_LCI (1 << 15)
	#define IRQ_TXI (1 << 14)
	#define IRQ_RXI (1 << 13)
	#define IRQ_RXOI (1 << 11)
	#define IRQ_TXPSI (1 << 9)
	#define IRQ_RXPSI (1 << 8)
	#define IRQ_TXSAI (1 << 6)
	#define IRQ_RXWFDI (1 << 5)
	#define IRQ_RXMPDI (1 << 4)
	#define IRQ_LDI (1 << 3)
	#define IRQ_EDI (1 << 2)
	#define IRQ_SPIBEI (1 << 1) /* KSZ8851SNL */
	#define IRQ_DEDI (1 << 0)

	#define KS_RXFCTR 0x9C
	#define KS_RXFC 0x9D
	#define RXFCTR_RXFC_MASK (0xff << 8)
	#define RXFCTR_RXFC_SHIFT (8)
	#define RXFCTR_RXFC_GET(_v) (((_v) >> 8) & 0xff)
	#define RXFCTR_RXFCT_MASK (0xff << 0)
	#define RXFCTR_RXFCT_SHIFT (0)

	#define KS_TXNTFSR 0x9E

	#define KS_MAHTR0 0xA0
	#define KS_MAHTR1 0xA2
	#define KS_MAHTR2 0xA4
	#define KS_MAHTR3 0xA6

	#define KS_FCLWR 0xB0
	#define KS_FCHWR 0xB2
	#define KS_FCOWR 0xB4

	#define KS_CIDER 0xC0
	#define CIDER_ID 0x8870
	#define CIDER_REV_MASK (0x7 << 1)
	#define CIDER_REV_SHIFT (1)
	#define CIDER_REV_GET(_v) (((_v) >> 1) & 0x7)

	#define KS_CGCR 0xC6

	#define KS_IACR 0xC8
	#define IACR_RDEN (1 << 12)
	#define IACR_TSEL_MASK (0x3 << 10)
	#define IACR_TSEL_SHIFT (10)
	#define IACR_TSEL_MIB (0x3 << 10)
	#define IACR_ADDR_MASK (0x1f << 0)
	#define IACR_ADDR_SHIFT (0)

	#define KS_IADLR 0xD0
	#define KS_IAHDR 0xD2

	#define KS_PMECR 0xD4
	#define PMECR_PME_DELAY (1 << 14)
	#define PMECR_PME_POL (1 << 12)
	#define PMECR_WOL_WAKEUP (1 << 11)
	#define PMECR_WOL_MAGICPKT (1 << 10)
	#define PMECR_WOL_LINKUP (1 << 9)
	#define PMECR_WOL_ENERGY (1 << 8)
	#define PMECR_AUTO_WAKE_EN (1 << 7)
	#define PMECR_WAKEUP_NORMAL (1 << 6)
	#define PMECR_WKEVT_MASK (0xf << 2)
	#define PMECR_WKEVT_SHIFT (2)
	#define PMECR_WKEVT_GET(_v) (((_v) >> 2) & 0xf)
	#define PMECR_WKEVT_ENERGY (0x1 << 2)
	#define PMECR_WKEVT_LINK (0x2 << 2)
	#define PMECR_WKEVT_MAGICPKT (0x4 << 2)
	#define PMECR_WKEVT_FRAME (0x8 << 2)
	#define PMECR_PM_MASK (0x3 << 0)
	#define PMECR_PM_SHIFT (0)
	#define PMECR_PM_NORMAL (0x0 << 0)
	#define PMECR_PM_ENERGY (0x1 << 0)
	#define PMECR_PM_SOFTDOWN (0x2 << 0)
	#define PMECR_PM_POWERSAVE (0x3 << 0)

	/* Standard MII PHY data */
	#define KS_P1MBCR 0xE4
	#define KS_P1MBSR 0xE6
	#define KS_PHY1ILR 0xE8
	#define KS_PHY1IHR 0xEA
	#define KS_P1ANAR 0xEC
	#define KS_P1ANLPR 0xEE

	#define KS_P1SCLMD 0xF4

	#define KS_P1CR 0xF6
	#define P1CR_LEDOFF (1 << 15)
	#define P1CR_TXIDS (1 << 14)
	#define P1CR_RESTARTAN (1 << 13)
	#define P1CR_DISAUTOMDIX (1 << 10)
	#define P1CR_FORCEMDIX (1 << 9)
	#define P1CR_AUTONEGEN (1 << 7)
	#define P1CR_FORCE100 (1 << 6)
	#define P1CR_FORCEFDX (1 << 5)
	#define P1CR_ADV_FLOW (1 << 4)
	#define P1CR_ADV_100BT_FDX (1 << 3)
	#define P1CR_ADV_100BT_HDX (1 << 2)
	#define P1CR_ADV_10BT_FDX (1 << 1)
	#define P1CR_ADV_10BT_HDX (1 << 0)

	#define KS_P1SR 0xF8
	#define P1SR_HP_MDIX (1 << 15)
	#define P1SR_REV_POL (1 << 13)
	#define P1SR_OP_100M (1 << 10)
	#define P1SR_OP_FDX (1 << 9)
	#define P1SR_OP_MDI (1 << 7)
	#define P1SR_AN_DONE (1 << 6)
	#define P1SR_LINK_GOOD (1 << 5)
	#define P1SR_PNTR_FLOW (1 << 4)
	#define P1SR_PNTR_100BT_FDX (1 << 3)
	#define P1SR_PNTR_100BT_HDX (1 << 2)
	#define P1SR_PNTR_10BT_FDX (1 << 1)
	#define P1SR_PNTR_10BT_HDX (1 << 0)

	/* TX Frame control */
	#define TXFR_TXIC (1 << 15)
	#define TXFR_TXFID_MASK (0x3f << 0)
	#define TXFR_TXFID_SHIFT (0)

	/**
	* struct ks8851_rxctrl - KS8851 driver rx control
	* @mchash: Multicast hash-table data.
	* @rxcr1: KS_RXCR1 register setting
	* @rxcr2: KS_RXCR2 register setting
	*
	* Representation of the settings needs to control the receive filtering
	* such as the multicast hash-filter and the receive register settings. This
	* is used to make the job of working out if the receive settings change and
	* then issuing the new settings to the worker that will send the necessary
	* commands.
	*/
	struct ks8851_rxctrl {
	u16 mchash[4];
	u16 rxcr1;
	u16 rxcr2;
	};

	/**
	* union ks8851_tx_hdr - tx header data
	* @txb: The header as bytes
	* @txw: The header as 16bit, little-endian words
	*
	* A dual representation of the tx header data to allow
	* access to individual bytes, and to allow 16bit accesses
	* with 16bit alignment.
	*/
	union ks8851_tx_hdr {
	u8 txb[6];
	__le16 txw[3];
	};

	/**
	* struct ks8851_net - KS8851 driver private data
	* @netdev: The network device we're bound to
	* @statelock: Lock on this structure for tx list.
	* @mii: The MII state information for the mii calls.
	* @rxctrl: RX settings for @rxctrl_work.
	* @rxctrl_work: Work queue for updating RX mode and multicast lists
	* @txq: Queue of packets for transmission.
	* @txh: Space for generating packet TX header in DMA-able data
	* @rxd: Space for receiving SPI data, in DMA-able space.
	* @txd: Space for transmitting SPI data, in DMA-able space.
	* @msg_enable: The message flags controlling driver output (see ethtool).
	* @fid: Incrementing frame id tag.
	* @rc_ier: Cached copy of KS_IER.
	* @rc_ccr: Cached copy of KS_CCR.
	* @rc_rxqcr: Cached copy of KS_RXQCR.
	* @eeprom: 93CX6 EEPROM state for accessing on-board EEPROM.
	* @vdd_reg: Optional regulator supplying the chip
	* @vdd_io: Optional digital power supply for IO
	* @gpio: Optional reset_n gpio
	* @mii_bus: Pointer to MII bus structure
	* @lock: Bus access lock callback
	* @unlock: Bus access unlock callback
	* @rdreg16: 16bit register read callback
	* @wrreg16: 16bit register write callback
	* @rdfifo: FIFO read callback
	* @wrfifo: FIFO write callback
	* @start_xmit: start_xmit() implementation callback
	* @rx_skb: rx_skb() implementation callback
	* @flush_tx_work: flush_tx_work() implementation callback
	*
	* The @statelock is used to protect information in the structure which may
	* need to be accessed via several sources, such as the network driver layer
	* or one of the work queues.
	*
	* We align the buffers we may use for rx/tx to ensure that if the SPI driver
	* wants to DMA map them, it will not have any problems with data the driver
	* modifies.
	*/
	struct ks8851_net {
	struct net_device *netdev;
	spinlock_t statelock;

	union ks8851_tx_hdr txh ____cacheline_aligned;
	u8 rxd[8];
	u8 txd[8];

	u32 msg_enable ____cacheline_aligned;
	u16 tx_space;
	u8 fid;

	u16 rc_ier;
	u16 rc_rxqcr;
	u16 rc_ccr;

	struct mii_if_info mii;
	struct ks8851_rxctrl rxctrl;

	struct work_struct rxctrl_work;

	struct sk_buff_head txq;

	struct eeprom_93cx6 eeprom;
	struct regulator *vdd_reg;
	struct regulator *vdd_io;
	int gpio;
	struct mii_bus *mii_bus;

	void (lock)(struct ks8851_net ks,
	unsigned long *flags);
	void (unlock)(struct ks8851_net ks,
	unsigned long *flags);
	unsigned int (rdreg16)(struct ks8851_net ks,
	unsigned int reg);
	void (wrreg16)(struct ks8851_net ks,
	unsigned int reg, unsigned int val);
	void (rdfifo)(struct ks8851_net ks, u8 *buff,
	unsigned int len);
	void (wrfifo)(struct ks8851_net ks,
	struct sk_buff *txp, bool irq);
	netdev_tx_t (start_xmit)(struct sk_buff skb,
	struct net_device *dev);
	void (rx_skb)(struct ks8851_net ks,
	struct sk_buff *skb);
	void (flush_tx_work)(struct ks8851_net ks);
	};

	int ks8851_probe_common(struct net_device netdev, struct device dev,
	int msg_en);
	void ks8851_remove_common(struct device *dev);
	int ks8851_suspend(struct device *dev);
	int ks8851_resume(struct device *dev);

	static __maybe_unused SIMPLE_DEV_PM_OPS(ks8851_pm_ops,
	ks8851_suspend, ks8851_resume);

	/**
	* ks8851_done_tx - update and then free skbuff after transmitting
	* @ks: The device state
	* @txb: The buffer transmitted
	*/
	static void __maybe_unused ks8851_done_tx(struct ks8851_net *ks,
	struct sk_buff *txb)
	{
	struct net_device *dev = ks->netdev;

	dev->stats.tx_bytes += txb->len;
	dev->stats.tx_packets++;

	dev_kfree_skb(txb);
	}

	#endif /* __KS8851_H__ */