drivers/net/ibm_emac/ibm_emac.h - linux - Git at Google

 /*
  * drivers/net/ibm_emac/ibm_emac.h
  *
  * Register definitions for PowerPC 4xx on-chip ethernet contoller
  *
  * Copyright (c) 2004, 2005 Zultys Technologies.
  * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
  *
  * Based on original work by
  *      Matt Porter <mporter@kernel.crashing.org>
  *      Armin Kuster <akuster@mvista.com>
  * 	Copyright 2002-2004 MontaVista Software Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
  *
  */
 #ifndef __IBM_EMAC_H_
 #define __IBM_EMAC_H_

 #include <linux/config.h>
 #include <linux/types.h>

 /* This is a simple check to prevent use of this driver on non-tested SoCs */
 #if !defined(CONFIG_405GP) && !defined(CONFIG_405GPR) && !defined(CONFIG_405EP) && \
     !defined(CONFIG_440GP) && !defined(CONFIG_440GX) && !defined(CONFIG_440SP) && \
     !defined(CONFIG_440EP) && !defined(CONFIG_NP405H) && !defined(CONFIG_440SPE)
 #error	"Unknown SoC. Please, check chip user manual and make sure EMAC defines are OK"
 #endif

 /* EMAC registers 		Write Access rules */
 struct emac_regs {
 	u32 mr0;		/* special 	*/
 	u32 mr1;		/* Reset 	*/
 	u32 tmr0;		/* special 	*/
 	u32 tmr1;		/* special 	*/
 	u32 rmr;		/* Reset 	*/
 	u32 isr;		/* Always 	*/
 	u32 iser;		/* Reset 	*/
 	u32 iahr;		/* Reset, R, T 	*/
 	u32 ialr;		/* Reset, R, T 	*/
 	u32 vtpid;		/* Reset, R, T 	*/
 	u32 vtci;		/* Reset, R, T 	*/
 	u32 ptr;		/* Reset,    T 	*/
 	u32 iaht1;		/* Reset, R	*/
 	u32 iaht2;		/* Reset, R	*/
 	u32 iaht3;		/* Reset, R	*/
 	u32 iaht4;		/* Reset, R	*/
 	u32 gaht1;		/* Reset, R	*/
 	u32 gaht2;		/* Reset, R	*/
 	u32 gaht3;		/* Reset, R	*/
 	u32 gaht4;		/* Reset, R	*/
 	u32 lsah;
 	u32 lsal;
 	u32 ipgvr;		/* Reset,    T 	*/
 	u32 stacr;		/* special 	*/
 	u32 trtr;		/* special 	*/
 	u32 rwmr;		/* Reset 	*/
 	u32 octx;
 	u32 ocrx;
 	u32 ipcr;
 };

 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_ETHTOOL_REGS_VER		0
 #define EMAC_ETHTOOL_REGS_SIZE		(sizeof(struct emac_regs) - sizeof(u32))
 #else
 #define EMAC_ETHTOOL_REGS_VER		1
 #define EMAC_ETHTOOL_REGS_SIZE		sizeof(struct emac_regs)
 #endif

 /* EMACx_MR0 */
 #define EMAC_MR0_RXI			0x80000000
 #define EMAC_MR0_TXI			0x40000000
 #define EMAC_MR0_SRST			0x20000000
 #define EMAC_MR0_TXE			0x10000000
 #define EMAC_MR0_RXE			0x08000000
 #define EMAC_MR0_WKE			0x04000000

 /* EMACx_MR1 */
 #define EMAC_MR1_FDE			0x80000000
 #define EMAC_MR1_ILE			0x40000000
 #define EMAC_MR1_VLE			0x20000000
 #define EMAC_MR1_EIFC			0x10000000
 #define EMAC_MR1_APP			0x08000000
 #define EMAC_MR1_IST			0x01000000

 #define EMAC_MR1_MF_MASK		0x00c00000
 #define EMAC_MR1_MF_10			0x00000000
 #define EMAC_MR1_MF_100			0x00400000
 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_MR1_MF_1000		0x00000000
 #define EMAC_MR1_MF_1000GPCS		0x00000000
 #define EMAC_MR1_MF_IPPA(id)		0x00000000
 #else
 #define EMAC_MR1_MF_1000		0x00800000
 #define EMAC_MR1_MF_1000GPCS		0x00c00000
 #define EMAC_MR1_MF_IPPA(id)		(((id) & 0x1f) << 6)
 #endif

 #define EMAC_TX_FIFO_SIZE		2048

 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_MR1_RFS_4K			0x00300000
 #define EMAC_MR1_RFS_16K		0x00000000
 #define EMAC_RX_FIFO_SIZE(gige)		4096
 #define EMAC_MR1_TFS_2K			0x00080000
 #define EMAC_MR1_TR0_MULT		0x00008000
 #define EMAC_MR1_JPSM			0x00000000
 #define EMAC_MR1_BASE(opb)		(EMAC_MR1_TFS_2K | EMAC_MR1_TR0_MULT)
 #else
 #define EMAC_MR1_RFS_4K			0x00180000
 #define EMAC_MR1_RFS_16K		0x00280000
 #define EMAC_RX_FIFO_SIZE(gige)		((gige) ? 16384 : 4096)
 #define EMAC_MR1_TFS_2K			0x00020000
 #define EMAC_MR1_TR			0x00008000
 #define EMAC_MR1_MWSW_001		0x00001000
 #define EMAC_MR1_JPSM			0x00000800
 #define EMAC_MR1_OBCI_MASK		0x00000038
 #define EMAC_MR1_OBCI_50		0x00000000
 #define EMAC_MR1_OBCI_66		0x00000008
 #define EMAC_MR1_OBCI_83		0x00000010
 #define EMAC_MR1_OBCI_100		0x00000018
 #define EMAC_MR1_OBCI_100P		0x00000020
 #define EMAC_MR1_OBCI(freq)		((freq) <= 50  ? EMAC_MR1_OBCI_50 : \
 					 (freq) <= 66  ? EMAC_MR1_OBCI_66 : \
 					 (freq) <= 83  ? EMAC_MR1_OBCI_83 : \
 					 (freq) <= 100 ? EMAC_MR1_OBCI_100 : EMAC_MR1_OBCI_100P)
 #define EMAC_MR1_BASE(opb)		(EMAC_MR1_TFS_2K | EMAC_MR1_TR | \
 					 EMAC_MR1_MWSW_001 | EMAC_MR1_OBCI(opb))
 #endif

 /* EMACx_TMR0 */
 #define EMAC_TMR0_GNP			0x80000000
 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_TMR0_DEFAULT		0x00000000
 #else
 #define EMAC_TMR0_TFAE_2_32		0x00000001
 #define EMAC_TMR0_TFAE_4_64		0x00000002
 #define EMAC_TMR0_TFAE_8_128		0x00000003
 #define EMAC_TMR0_TFAE_16_256		0x00000004
 #define EMAC_TMR0_TFAE_32_512		0x00000005
 #define EMAC_TMR0_TFAE_64_1024		0x00000006
 #define EMAC_TMR0_TFAE_128_2048		0x00000007
 #define EMAC_TMR0_DEFAULT		EMAC_TMR0_TFAE_2_32
 #endif
 #define EMAC_TMR0_XMIT			(EMAC_TMR0_GNP | EMAC_TMR0_DEFAULT)

 /* EMACx_TMR1 */

 /* IBM manuals are not very clear here.
  * This is my interpretation of how things are. --ebs
  */
 #if defined(CONFIG_40x)
 #define EMAC_FIFO_ENTRY_SIZE		8
 #define EMAC_MAL_BURST_SIZE		(16 * 4)
 #else
 #define EMAC_FIFO_ENTRY_SIZE		16
 #define EMAC_MAL_BURST_SIZE		(64 * 4)
 #endif

 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_TMR1(l,h)			(((l) << 27) | (((h) & 0xff) << 16))
 #else
 #define EMAC_TMR1(l,h)			(((l) << 27) | (((h) & 0x3ff) << 14))
 #endif

 /* EMACx_RMR */
 #define EMAC_RMR_SP			0x80000000
 #define EMAC_RMR_SFCS			0x40000000
 #define EMAC_RMR_RRP			0x20000000
 #define EMAC_RMR_RFP			0x10000000
 #define EMAC_RMR_ROP			0x08000000
 #define EMAC_RMR_RPIR			0x04000000
 #define EMAC_RMR_PPP			0x02000000
 #define EMAC_RMR_PME			0x01000000
 #define EMAC_RMR_PMME			0x00800000
 #define EMAC_RMR_IAE			0x00400000
 #define EMAC_RMR_MIAE			0x00200000
 #define EMAC_RMR_BAE			0x00100000
 #define EMAC_RMR_MAE			0x00080000
 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_RMR_BASE			0x00000000
 #else
 #define EMAC_RMR_RFAF_2_32		0x00000001
 #define EMAC_RMR_RFAF_4_64		0x00000002
 #define EMAC_RMR_RFAF_8_128		0x00000003
 #define EMAC_RMR_RFAF_16_256		0x00000004
 #define EMAC_RMR_RFAF_32_512		0x00000005
 #define EMAC_RMR_RFAF_64_1024		0x00000006
 #define EMAC_RMR_RFAF_128_2048		0x00000007
 #define EMAC_RMR_BASE			EMAC_RMR_RFAF_128_2048
 #endif

 /* EMACx_ISR & EMACx_ISER */
 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_ISR_TXPE			0x00000000
 #define EMAC_ISR_RXPE			0x00000000
 #define EMAC_ISR_TXUE			0x00000000
 #define EMAC_ISR_RXOE			0x00000000
 #else
 #define EMAC_ISR_TXPE			0x20000000
 #define EMAC_ISR_RXPE			0x10000000
 #define EMAC_ISR_TXUE			0x08000000
 #define EMAC_ISR_RXOE			0x04000000
 #endif
 #define EMAC_ISR_OVR			0x02000000
 #define EMAC_ISR_PP			0x01000000
 #define EMAC_ISR_BP			0x00800000
 #define EMAC_ISR_RP			0x00400000
 #define EMAC_ISR_SE			0x00200000
 #define EMAC_ISR_ALE			0x00100000
 #define EMAC_ISR_BFCS			0x00080000
 #define EMAC_ISR_PTLE			0x00040000
 #define EMAC_ISR_ORE			0x00020000
 #define EMAC_ISR_IRE			0x00010000
 #define EMAC_ISR_SQE			0x00000080
 #define EMAC_ISR_TE			0x00000040
 #define EMAC_ISR_MOS			0x00000002
 #define EMAC_ISR_MOF			0x00000001

 /* EMACx_STACR */
 #define EMAC_STACR_PHYD_MASK		0xffff
 #define EMAC_STACR_PHYD_SHIFT		16
 #define EMAC_STACR_OC			0x00008000
 #define EMAC_STACR_PHYE			0x00004000
 #define EMAC_STACR_STAC_MASK		0x00003000
 #define EMAC_STACR_STAC_READ		0x00001000
 #define EMAC_STACR_STAC_WRITE		0x00002000
 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_STACR_OPBC_MASK		0x00000C00
 #define EMAC_STACR_OPBC_50		0x00000000
 #define EMAC_STACR_OPBC_66		0x00000400
 #define EMAC_STACR_OPBC_83		0x00000800
 #define EMAC_STACR_OPBC_100		0x00000C00
 #define EMAC_STACR_OPBC(freq)		((freq) <= 50 ? EMAC_STACR_OPBC_50 : \
 					 (freq) <= 66 ? EMAC_STACR_OPBC_66 : \
 					 (freq) <= 83 ? EMAC_STACR_OPBC_83 : EMAC_STACR_OPBC_100)
 #define EMAC_STACR_BASE(opb)		EMAC_STACR_OPBC(opb)
 #else
 #define EMAC_STACR_BASE(opb)		0x00000000
 #endif
 #define EMAC_STACR_PCDA_MASK		0x1f
 #define EMAC_STACR_PCDA_SHIFT		5
 #define EMAC_STACR_PRA_MASK		0x1f

 /*
  * For the 440SPe, AMCC inexplicably changed the polarity of
  * the "operation complete" bit in the MII control register.
  */
 #if defined(CONFIG_440SPE)
 static inline int emac_phy_done(u32 stacr)
 {
 	return !(stacr & EMAC_STACR_OC);
 };
 #define EMAC_STACR_START 		EMAC_STACR_OC

 #else /* CONFIG_440SPE */
 static inline int emac_phy_done(u32 stacr)
 {
 	return stacr & EMAC_STACR_OC;
 };
 #define EMAC_STACR_START 		0
 #endif /* !CONFIG_440SPE */

 /* EMACx_TRTR */
 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_TRTR_SHIFT			27
 #else
 #define EMAC_TRTR_SHIFT			24
 #endif
 #define EMAC_TRTR(size)			((((size) >> 6) - 1) << EMAC_TRTR_SHIFT)

 /* EMACx_RWMR */
 #if !defined(CONFIG_IBM_EMAC4)
 #define EMAC_RWMR(l,h)			(((l) << 23) | ( ((h) & 0x1ff) << 7))
 #else
 #define EMAC_RWMR(l,h)			(((l) << 22) | ( ((h) & 0x3ff) << 6))
 #endif

 /* EMAC specific TX descriptor control fields (write access) */
 #define EMAC_TX_CTRL_GFCS		0x0200
 #define EMAC_TX_CTRL_GP			0x0100
 #define EMAC_TX_CTRL_ISA		0x0080
 #define EMAC_TX_CTRL_RSA		0x0040
 #define EMAC_TX_CTRL_IVT		0x0020
 #define EMAC_TX_CTRL_RVT		0x0010
 #define EMAC_TX_CTRL_TAH_CSUM		0x000e

 /* EMAC specific TX descriptor status fields (read access) */
 #define EMAC_TX_ST_BFCS			0x0200
 #define EMAC_TX_ST_LCS			0x0080
 #define EMAC_TX_ST_ED			0x0040
 #define EMAC_TX_ST_EC			0x0020
 #define EMAC_TX_ST_LC			0x0010
 #define EMAC_TX_ST_MC			0x0008
 #define EMAC_TX_ST_SC			0x0004
 #define EMAC_TX_ST_UR			0x0002
 #define EMAC_TX_ST_SQE			0x0001
 #if !defined(CONFIG_IBM_EMAC_TAH)
 #define EMAC_IS_BAD_TX(v)		((v) & (EMAC_TX_ST_LCS | EMAC_TX_ST_ED | \
 					 EMAC_TX_ST_EC | EMAC_TX_ST_LC | \
 					 EMAC_TX_ST_MC | EMAC_TX_ST_UR))
 #else
 #define EMAC_IS_BAD_TX(v)		((v) & (EMAC_TX_ST_LCS | EMAC_TX_ST_ED | \
 					 EMAC_TX_ST_EC | EMAC_TX_ST_LC))
 #endif

 /* EMAC specific RX descriptor status fields (read access) */
 #define EMAC_RX_ST_OE			0x0200
 #define EMAC_RX_ST_PP			0x0100
 #define EMAC_RX_ST_BP			0x0080
 #define EMAC_RX_ST_RP			0x0040
 #define EMAC_RX_ST_SE			0x0020
 #define EMAC_RX_ST_AE			0x0010
 #define EMAC_RX_ST_BFCS			0x0008
 #define EMAC_RX_ST_PTL			0x0004
 #define EMAC_RX_ST_ORE			0x0002
 #define EMAC_RX_ST_IRE			0x0001
 #define EMAC_RX_TAH_BAD_CSUM		0x0003
 #define EMAC_BAD_RX_MASK		(EMAC_RX_ST_OE | EMAC_RX_ST_BP | \
 					 EMAC_RX_ST_RP | EMAC_RX_ST_SE | \
 					 EMAC_RX_ST_AE | EMAC_RX_ST_BFCS | \
 					 EMAC_RX_ST_PTL | EMAC_RX_ST_ORE | \
 					 EMAC_RX_ST_IRE )
 #endif /* __IBM_EMAC_H_ */
	/*
	* drivers/net/ibm_emac/ibm_emac.h
	*
	* Register definitions for PowerPC 4xx on-chip ethernet contoller
	*
	* Copyright (c) 2004, 2005 Zultys Technologies.
	* Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
	*
	* Based on original work by
	* Matt Porter <mporter@kernel.crashing.org>
	* Armin Kuster <akuster@mvista.com>
	* Copyright 2002-2004 MontaVista Software Inc.
	*
	* This program is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License as published by the
	* Free Software Foundation; either version 2 of the License, or (at your
	* option) any later version.
	*
	*/
	#ifndef __IBM_EMAC_H_
	#define __IBM_EMAC_H_

	#include <linux/config.h>
	#include <linux/types.h>

	/* This is a simple check to prevent use of this driver on non-tested SoCs */
	#if !defined(CONFIG_405GP) && !defined(CONFIG_405GPR) && !defined(CONFIG_405EP) && \
	!defined(CONFIG_440GP) && !defined(CONFIG_440GX) && !defined(CONFIG_440SP) && \
	!defined(CONFIG_440EP) && !defined(CONFIG_NP405H) && !defined(CONFIG_440SPE)
	#error "Unknown SoC. Please, check chip user manual and make sure EMAC defines are OK"
	#endif

	/* EMAC registers Write Access rules */
	struct emac_regs {
	u32 mr0; /* special */
	u32 mr1; /* Reset */
	u32 tmr0; /* special */
	u32 tmr1; /* special */
	u32 rmr; /* Reset */
	u32 isr; /* Always */
	u32 iser; /* Reset */
	u32 iahr; /* Reset, R, T */
	u32 ialr; /* Reset, R, T */
	u32 vtpid; /* Reset, R, T */
	u32 vtci; /* Reset, R, T */
	u32 ptr; /* Reset, T */
	u32 iaht1; /* Reset, R */
	u32 iaht2; /* Reset, R */
	u32 iaht3; /* Reset, R */
	u32 iaht4; /* Reset, R */
	u32 gaht1; /* Reset, R */
	u32 gaht2; /* Reset, R */
	u32 gaht3; /* Reset, R */
	u32 gaht4; /* Reset, R */
	u32 lsah;
	u32 lsal;
	u32 ipgvr; /* Reset, T */
	u32 stacr; /* special */
	u32 trtr; /* special */
	u32 rwmr; /* Reset */
	u32 octx;
	u32 ocrx;
	u32 ipcr;
	};

	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_ETHTOOL_REGS_VER 0
	#define EMAC_ETHTOOL_REGS_SIZE (sizeof(struct emac_regs) - sizeof(u32))
	#else
	#define EMAC_ETHTOOL_REGS_VER 1
	#define EMAC_ETHTOOL_REGS_SIZE sizeof(struct emac_regs)
	#endif

	/* EMACx_MR0 */
	#define EMAC_MR0_RXI 0x80000000
	#define EMAC_MR0_TXI 0x40000000
	#define EMAC_MR0_SRST 0x20000000
	#define EMAC_MR0_TXE 0x10000000
	#define EMAC_MR0_RXE 0x08000000
	#define EMAC_MR0_WKE 0x04000000

	/* EMACx_MR1 */
	#define EMAC_MR1_FDE 0x80000000
	#define EMAC_MR1_ILE 0x40000000
	#define EMAC_MR1_VLE 0x20000000
	#define EMAC_MR1_EIFC 0x10000000
	#define EMAC_MR1_APP 0x08000000
	#define EMAC_MR1_IST 0x01000000

	#define EMAC_MR1_MF_MASK 0x00c00000
	#define EMAC_MR1_MF_10 0x00000000
	#define EMAC_MR1_MF_100 0x00400000
	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_MR1_MF_1000 0x00000000
	#define EMAC_MR1_MF_1000GPCS 0x00000000
	#define EMAC_MR1_MF_IPPA(id) 0x00000000
	#else
	#define EMAC_MR1_MF_1000 0x00800000
	#define EMAC_MR1_MF_1000GPCS 0x00c00000
	#define EMAC_MR1_MF_IPPA(id) (((id) & 0x1f) << 6)
	#endif

	#define EMAC_TX_FIFO_SIZE 2048

	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_MR1_RFS_4K 0x00300000
	#define EMAC_MR1_RFS_16K 0x00000000
	#define EMAC_RX_FIFO_SIZE(gige) 4096
	#define EMAC_MR1_TFS_2K 0x00080000
	#define EMAC_MR1_TR0_MULT 0x00008000
	#define EMAC_MR1_JPSM 0x00000000
	#define EMAC_MR1_BASE(opb) (EMAC_MR1_TFS_2K \| EMAC_MR1_TR0_MULT)
	#else
	#define EMAC_MR1_RFS_4K 0x00180000
	#define EMAC_MR1_RFS_16K 0x00280000
	#define EMAC_RX_FIFO_SIZE(gige) ((gige) ? 16384 : 4096)
	#define EMAC_MR1_TFS_2K 0x00020000
	#define EMAC_MR1_TR 0x00008000
	#define EMAC_MR1_MWSW_001 0x00001000
	#define EMAC_MR1_JPSM 0x00000800
	#define EMAC_MR1_OBCI_MASK 0x00000038
	#define EMAC_MR1_OBCI_50 0x00000000
	#define EMAC_MR1_OBCI_66 0x00000008
	#define EMAC_MR1_OBCI_83 0x00000010
	#define EMAC_MR1_OBCI_100 0x00000018
	#define EMAC_MR1_OBCI_100P 0x00000020
	#define EMAC_MR1_OBCI(freq) ((freq) <= 50 ? EMAC_MR1_OBCI_50 : \
	(freq) <= 66 ? EMAC_MR1_OBCI_66 : \
	(freq) <= 83 ? EMAC_MR1_OBCI_83 : \
	(freq) <= 100 ? EMAC_MR1_OBCI_100 : EMAC_MR1_OBCI_100P)
	#define EMAC_MR1_BASE(opb) (EMAC_MR1_TFS_2K \| EMAC_MR1_TR \| \
	EMAC_MR1_MWSW_001 \| EMAC_MR1_OBCI(opb))
	#endif

	/* EMACx_TMR0 */
	#define EMAC_TMR0_GNP 0x80000000
	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_TMR0_DEFAULT 0x00000000
	#else
	#define EMAC_TMR0_TFAE_2_32 0x00000001
	#define EMAC_TMR0_TFAE_4_64 0x00000002
	#define EMAC_TMR0_TFAE_8_128 0x00000003
	#define EMAC_TMR0_TFAE_16_256 0x00000004
	#define EMAC_TMR0_TFAE_32_512 0x00000005
	#define EMAC_TMR0_TFAE_64_1024 0x00000006
	#define EMAC_TMR0_TFAE_128_2048 0x00000007
	#define EMAC_TMR0_DEFAULT EMAC_TMR0_TFAE_2_32
	#endif
	#define EMAC_TMR0_XMIT (EMAC_TMR0_GNP \| EMAC_TMR0_DEFAULT)

	/* EMACx_TMR1 */

	/* IBM manuals are not very clear here.
	* This is my interpretation of how things are. --ebs
	*/
	#if defined(CONFIG_40x)
	#define EMAC_FIFO_ENTRY_SIZE 8
	#define EMAC_MAL_BURST_SIZE (16 * 4)
	#else
	#define EMAC_FIFO_ENTRY_SIZE 16
	#define EMAC_MAL_BURST_SIZE (64 * 4)
	#endif

	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_TMR1(l,h) (((l) << 27) \| (((h) & 0xff) << 16))
	#else
	#define EMAC_TMR1(l,h) (((l) << 27) \| (((h) & 0x3ff) << 14))
	#endif

	/* EMACx_RMR */
	#define EMAC_RMR_SP 0x80000000
	#define EMAC_RMR_SFCS 0x40000000
	#define EMAC_RMR_RRP 0x20000000
	#define EMAC_RMR_RFP 0x10000000
	#define EMAC_RMR_ROP 0x08000000
	#define EMAC_RMR_RPIR 0x04000000
	#define EMAC_RMR_PPP 0x02000000
	#define EMAC_RMR_PME 0x01000000
	#define EMAC_RMR_PMME 0x00800000
	#define EMAC_RMR_IAE 0x00400000
	#define EMAC_RMR_MIAE 0x00200000
	#define EMAC_RMR_BAE 0x00100000
	#define EMAC_RMR_MAE 0x00080000
	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_RMR_BASE 0x00000000
	#else
	#define EMAC_RMR_RFAF_2_32 0x00000001
	#define EMAC_RMR_RFAF_4_64 0x00000002
	#define EMAC_RMR_RFAF_8_128 0x00000003
	#define EMAC_RMR_RFAF_16_256 0x00000004
	#define EMAC_RMR_RFAF_32_512 0x00000005
	#define EMAC_RMR_RFAF_64_1024 0x00000006
	#define EMAC_RMR_RFAF_128_2048 0x00000007
	#define EMAC_RMR_BASE EMAC_RMR_RFAF_128_2048
	#endif

	/* EMACx_ISR & EMACx_ISER */
	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_ISR_TXPE 0x00000000
	#define EMAC_ISR_RXPE 0x00000000
	#define EMAC_ISR_TXUE 0x00000000
	#define EMAC_ISR_RXOE 0x00000000
	#else
	#define EMAC_ISR_TXPE 0x20000000
	#define EMAC_ISR_RXPE 0x10000000
	#define EMAC_ISR_TXUE 0x08000000
	#define EMAC_ISR_RXOE 0x04000000
	#endif
	#define EMAC_ISR_OVR 0x02000000
	#define EMAC_ISR_PP 0x01000000
	#define EMAC_ISR_BP 0x00800000
	#define EMAC_ISR_RP 0x00400000
	#define EMAC_ISR_SE 0x00200000
	#define EMAC_ISR_ALE 0x00100000
	#define EMAC_ISR_BFCS 0x00080000
	#define EMAC_ISR_PTLE 0x00040000
	#define EMAC_ISR_ORE 0x00020000
	#define EMAC_ISR_IRE 0x00010000
	#define EMAC_ISR_SQE 0x00000080
	#define EMAC_ISR_TE 0x00000040
	#define EMAC_ISR_MOS 0x00000002
	#define EMAC_ISR_MOF 0x00000001

	/* EMACx_STACR */
	#define EMAC_STACR_PHYD_MASK 0xffff
	#define EMAC_STACR_PHYD_SHIFT 16
	#define EMAC_STACR_OC 0x00008000
	#define EMAC_STACR_PHYE 0x00004000
	#define EMAC_STACR_STAC_MASK 0x00003000
	#define EMAC_STACR_STAC_READ 0x00001000
	#define EMAC_STACR_STAC_WRITE 0x00002000
	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_STACR_OPBC_MASK 0x00000C00
	#define EMAC_STACR_OPBC_50 0x00000000
	#define EMAC_STACR_OPBC_66 0x00000400
	#define EMAC_STACR_OPBC_83 0x00000800
	#define EMAC_STACR_OPBC_100 0x00000C00
	#define EMAC_STACR_OPBC(freq) ((freq) <= 50 ? EMAC_STACR_OPBC_50 : \
	(freq) <= 66 ? EMAC_STACR_OPBC_66 : \
	(freq) <= 83 ? EMAC_STACR_OPBC_83 : EMAC_STACR_OPBC_100)
	#define EMAC_STACR_BASE(opb) EMAC_STACR_OPBC(opb)
	#else
	#define EMAC_STACR_BASE(opb) 0x00000000
	#endif
	#define EMAC_STACR_PCDA_MASK 0x1f
	#define EMAC_STACR_PCDA_SHIFT 5
	#define EMAC_STACR_PRA_MASK 0x1f

	/*
	* For the 440SPe, AMCC inexplicably changed the polarity of
	* the "operation complete" bit in the MII control register.
	*/
	#if defined(CONFIG_440SPE)
	static inline int emac_phy_done(u32 stacr)
	{
	return !(stacr & EMAC_STACR_OC);
	};
	#define EMAC_STACR_START EMAC_STACR_OC

	#else /* CONFIG_440SPE */
	static inline int emac_phy_done(u32 stacr)
	{
	return stacr & EMAC_STACR_OC;
	};
	#define EMAC_STACR_START 0
	#endif /* !CONFIG_440SPE */

	/* EMACx_TRTR */
	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_TRTR_SHIFT 27
	#else
	#define EMAC_TRTR_SHIFT 24
	#endif
	#define EMAC_TRTR(size) ((((size) >> 6) - 1) << EMAC_TRTR_SHIFT)

	/* EMACx_RWMR */
	#if !defined(CONFIG_IBM_EMAC4)
	#define EMAC_RWMR(l,h) (((l) << 23) \| ( ((h) & 0x1ff) << 7))
	#else
	#define EMAC_RWMR(l,h) (((l) << 22) \| ( ((h) & 0x3ff) << 6))
	#endif

	/* EMAC specific TX descriptor control fields (write access) */
	#define EMAC_TX_CTRL_GFCS 0x0200
	#define EMAC_TX_CTRL_GP 0x0100
	#define EMAC_TX_CTRL_ISA 0x0080
	#define EMAC_TX_CTRL_RSA 0x0040
	#define EMAC_TX_CTRL_IVT 0x0020
	#define EMAC_TX_CTRL_RVT 0x0010
	#define EMAC_TX_CTRL_TAH_CSUM 0x000e

	/* EMAC specific TX descriptor status fields (read access) */
	#define EMAC_TX_ST_BFCS 0x0200
	#define EMAC_TX_ST_LCS 0x0080
	#define EMAC_TX_ST_ED 0x0040
	#define EMAC_TX_ST_EC 0x0020
	#define EMAC_TX_ST_LC 0x0010
	#define EMAC_TX_ST_MC 0x0008
	#define EMAC_TX_ST_SC 0x0004
	#define EMAC_TX_ST_UR 0x0002
	#define EMAC_TX_ST_SQE 0x0001
	#if !defined(CONFIG_IBM_EMAC_TAH)
	#define EMAC_IS_BAD_TX(v) ((v) & (EMAC_TX_ST_LCS \| EMAC_TX_ST_ED \| \
	EMAC_TX_ST_EC \| EMAC_TX_ST_LC \| \
	EMAC_TX_ST_MC \| EMAC_TX_ST_UR))
	#else
	#define EMAC_IS_BAD_TX(v) ((v) & (EMAC_TX_ST_LCS \| EMAC_TX_ST_ED \| \
	EMAC_TX_ST_EC \| EMAC_TX_ST_LC))
	#endif

	/* EMAC specific RX descriptor status fields (read access) */
	#define EMAC_RX_ST_OE 0x0200
	#define EMAC_RX_ST_PP 0x0100
	#define EMAC_RX_ST_BP 0x0080
	#define EMAC_RX_ST_RP 0x0040
	#define EMAC_RX_ST_SE 0x0020
	#define EMAC_RX_ST_AE 0x0010
	#define EMAC_RX_ST_BFCS 0x0008
	#define EMAC_RX_ST_PTL 0x0004
	#define EMAC_RX_ST_ORE 0x0002
	#define EMAC_RX_ST_IRE 0x0001
	#define EMAC_RX_TAH_BAD_CSUM 0x0003
	#define EMAC_BAD_RX_MASK (EMAC_RX_ST_OE \| EMAC_RX_ST_BP \| \
	EMAC_RX_ST_RP \| EMAC_RX_ST_SE \| \
	EMAC_RX_ST_AE \| EMAC_RX_ST_BFCS \| \
	EMAC_RX_ST_PTL \| EMAC_RX_ST_ORE \| \
	EMAC_RX_ST_IRE )
	#endif /* __IBM_EMAC_H_ */