commproc.h

嵌入式ARM的一些源代码

	uint	scc_rxtmp;	/* Internal */
	uint	scc_tstate;	/* Internal */
	uint	scc_tdp;	/* Internal */
	ushort	scc_tbptr;	/* Internal */
	ushort	scc_tbc;	/* Internal */
	uint	scc_txtmp;	/* Internal */
	uint	scc_rcrc;	/* Internal */
	uint	scc_tcrc;	/* Internal */
} sccp_t;

/* Function code bits.
*/
#define SCC_EB	((u_char)0x10)	/* Set big endian byte order */

/* CPM Ethernet through SCC1.
 */
typedef struct scc_enet {
	sccp_t	sen_genscc;
	uint	sen_cpres;	/* Preset CRC */
	uint	sen_cmask;	/* Constant mask for CRC */
	uint	sen_crcec;	/* CRC Error counter */
	uint	sen_alec;	/* alignment error counter */
	uint	sen_disfc;	/* discard frame counter */
	ushort	sen_pads;	/* Tx short frame pad character */
	ushort	sen_retlim;	/* Retry limit threshold */
	ushort	sen_retcnt;	/* Retry limit counter */
	ushort	sen_maxflr;	/* maximum frame length register */
	ushort	sen_minflr;	/* minimum frame length register */
	ushort	sen_maxd1;	/* maximum DMA1 length */
	ushort	sen_maxd2;	/* maximum DMA2 length */
	ushort	sen_maxd;	/* Rx max DMA */
	ushort	sen_dmacnt;	/* Rx DMA counter */
	ushort	sen_maxb;	/* Max BD byte count */
	ushort	sen_gaddr1;	/* Group address filter */
	ushort	sen_gaddr2;
	ushort	sen_gaddr3;
	ushort	sen_gaddr4;
	uint	sen_tbuf0data0;	/* Save area 0 - current frame */
	uint	sen_tbuf0data1;	/* Save area 1 - current frame */
	uint	sen_tbuf0rba;	/* Internal */
	uint	sen_tbuf0crc;	/* Internal */
	ushort	sen_tbuf0bcnt;	/* Internal */
	ushort	sen_paddrh;	/* physical address (MSB) */
	ushort	sen_paddrm;
	ushort	sen_paddrl;	/* physical address (LSB) */
	ushort	sen_pper;	/* persistence */
	ushort	sen_rfbdptr;	/* Rx first BD pointer */
	ushort	sen_tfbdptr;	/* Tx first BD pointer */
	ushort	sen_tlbdptr;	/* Tx last BD pointer */
	uint	sen_tbuf1data0;	/* Save area 0 - current frame */
	uint	sen_tbuf1data1;	/* Save area 1 - current frame */
	uint	sen_tbuf1rba;	/* Internal */
	uint	sen_tbuf1crc;	/* Internal */
	ushort	sen_tbuf1bcnt;	/* Internal */
	ushort	sen_txlen;	/* Tx Frame length counter */
	ushort	sen_iaddr1;	/* Individual address filter */
	ushort	sen_iaddr2;
	ushort	sen_iaddr3;
	ushort	sen_iaddr4;
	ushort	sen_boffcnt;	/* Backoff counter */

	/* NOTE: Some versions of the manual have the following items
	 * incorrectly documented.  Below is the proper order.
	 */
	ushort	sen_taddrh;	/* temp address (MSB) */
	ushort	sen_taddrm;
	ushort	sen_taddrl;	/* temp address (LSB) */
} scc_enet_t;

/***  MBX  ************************************************************/

#ifdef CONFIG_MBX
/* Bits in parallel I/O port registers that have to be set/cleared
 * to configure the pins for SCC1 use.  The TCLK and RCLK seem unique
 * to the MBX860 board.  Any two of the four available clocks could be
 * used, and the MPC860 cookbook manual has an example using different
 * clock pins.
 */
#define	PROFF_ENET	PROFF_SCC1
#define	CPM_CR_ENET	CPM_CR_CH_SCC1
#define	SCC_ENET	0
#define PA_ENET_RXD	((ushort)0x0001)
#define PA_ENET_TXD	((ushort)0x0002)
#define PA_ENET_TCLK	((ushort)0x0200)
#define PA_ENET_RCLK	((ushort)0x0800)
#define PC_ENET_TENA	((ushort)0x0001)
#define PC_ENET_CLSN	((ushort)0x0010)
#define PC_ENET_RENA	((ushort)0x0020)

/* Control bits in the SICR to route TCLK (CLK2) and RCLK (CLK4) to
 * SCC1.  Also, make sure GR1 (bit 24) and SC1 (bit 25) are zero.
 */
#define SICR_ENET_MASK	((uint)0x000000ff)
#define SICR_ENET_CLKRT	((uint)0x0000003d)
#endif	/* CONFIG_MBX */

/***  RPXLITE  ********************************************************/

#ifdef CONFIG_RPXLITE
/* This ENET stuff is for the MPC850 with ethernet on SCC2.  Some of
 * this may be unique to the RPX-Lite configuration.
 * Note TENA is on Port B.
 */
#define	PROFF_ENET	PROFF_SCC2
#define	CPM_CR_ENET	CPM_CR_CH_SCC2
#define	SCC_ENET	1
#define PA_ENET_RXD	((ushort)0x0004)
#define PA_ENET_TXD	((ushort)0x0008)
#define PA_ENET_TCLK	((ushort)0x0200)
#define PA_ENET_RCLK	((ushort)0x0800)
#define PB_ENET_TENA	((uint)0x00002000)
#define PC_ENET_CLSN	((ushort)0x0040)
#define PC_ENET_RENA	((ushort)0x0080)

#define SICR_ENET_MASK	((uint)0x0000ff00)
#define SICR_ENET_CLKRT	((uint)0x00003d00)
#endif	/* CONFIG_RPXLITE */

/***  FADS823  ********************************************************/

#if defined(CONFIG_MPC823FADS) && defined(CONFIG_FADS)
/* This ENET stuff is for the MPC823FADS with ethernet on SCC2.  
 */
#ifdef CONFIG_SCC2_ENET
#define	PROFF_ENET	PROFF_SCC2
#define	CPM_CR_ENET	CPM_CR_CH_SCC2
#define	SCC_ENET	1
#define CPMVEC_ENET	CPMVEC_SCC2
#endif

#ifdef CONFIG_SCC1_ENET
#define	PROFF_ENET	PROFF_SCC1
#define	CPM_CR_ENET	CPM_CR_CH_SCC1
#define	SCC_ENET	0
#define CPMVEC_ENET	CPMVEC_SCC1
#endif

#define PA_ENET_RXD	((ushort)0x0004)
#define PA_ENET_TXD	((ushort)0x0008)
#define PA_ENET_TCLK	((ushort)0x0400)
#define PA_ENET_RCLK	((ushort)0x0200)

#define PB_ENET_TENA	((uint)0x00002000)

#define PC_ENET_CLSN	((ushort)0x0040)
#define PC_ENET_RENA	((ushort)0x0080)

#define SICR_ENET_MASK	((uint)0x0000ff00)
#define SICR_ENET_CLKRT	((uint)0x00002e00)

/* 68160 PHY control */

#define PC_ENET_ETHLOOP ((ushort)0x0800)
#define PC_ENET_TPFLDL	((ushort)0x0400)
#define PC_ENET_TPSQEL  ((ushort)0x0200)

#endif	/* CONFIG_FADS823FADS */

/***  GENIETV  ********************************************************/

#if defined(CONFIG_GENIETV)
// Ethernet is only on SCC2

#define CONFIG_SCC2_ENET
#define	PROFF_ENET	PROFF_SCC2
#define	CPM_CR_ENET	CPM_CR_CH_SCC2
#define	SCC_ENET	1
#define CPMVEC_ENET	CPMVEC_SCC2

#define PA_ENET_RXD	((ushort)0x0004)	/* PA 13 */
#define PA_ENET_TXD	((ushort)0x0008)	/* PA 12 */
#define PA_ENET_TCLK	((ushort)0x0400)	/* PA  5 */
#define PA_ENET_RCLK	((ushort)0x0200)	/* PA  6 */

#define PB_ENET_TENA	((uint)0x00002000)	/* PB 18 */

#define PC_ENET_CLSN	((ushort)0x0040)	/* PC  9 */
#define PC_ENET_RENA	((ushort)0x0080)	/* PC  8 */

#define SICR_ENET_MASK	((uint)0x0000ff00)
#define SICR_ENET_CLKRT	((uint)0x00002e00)

#endif	/* CONFIG_GENIETV */

/***  FADS850SAR  ********************************************************/

#if defined(CONFIG_MPC850SAR) && defined(CONFIG_FADS)
/* This ENET stuff is for the MPC850SAR with ethernet on SCC2.  Some of
 * this may be unique to the FADS850SAR configuration.
 * Note TENA is on Port B.
 */
#define	PROFF_ENET	PROFF_SCC2
#define	CPM_CR_ENET	CPM_CR_CH_SCC2
#define	SCC_ENET	1
#define PA_ENET_RXD	((ushort)0x0004)	/* PA 13 */
#define PA_ENET_TXD	((ushort)0x0008)	/* PA 12 */
#define PA_ENET_RCLK	((ushort)0x0200)	/* PA 6 */
#define PA_ENET_TCLK	((ushort)0x0800)	/* PA 4 */
#define PB_ENET_TENA	((uint)0x00002000)	/* PB 18 */
#define PC_ENET_CLSN	((ushort)0x0040)	/* PC 9 */
#define PC_ENET_RENA	((ushort)0x0080)	/* PC 8 */

#define SICR_ENET_MASK	((uint)0x0000ff00)
#define SICR_ENET_CLKRT	((uint)0x00002f00)	/* RCLK-CLK2, TCLK-CLK4 */
#endif	/* CONFIG_FADS850SAR */

/***  FADS860T********************************************************/

#if defined(CONFIG_MPC860T) && defined(CONFIG_FADS)
/* This ENET stuff is for the MPC860TFADS with ethernet on SCC1.  
 */

#define	PROFF_ENET	PROFF_SCC1
#define	CPM_CR_ENET	CPM_CR_CH_SCC1
#define	SCC_ENET	0

#define PA_ENET_RXD	((ushort)0x0001)
#define PA_ENET_TXD	((ushort)0x0002)
#define PA_ENET_TCLK	((ushort)0x0100)
#define PA_ENET_RCLK	((ushort)0x0200)

#define PB_ENET_TENA	((uint)0x00001000)

#define PC_ENET_CLSN	((ushort)0x0010)
#define PC_ENET_RENA	((ushort)0x0020)

#define SICR_ENET_MASK	((uint)0x000000ff)
#define SICR_ENET_CLKRT	((uint)0x0000002c)

/* 68160 PHY control */

#define PC_ENET_ETHLOOP ((ushort)0x0800)
#define PC_ENET_TPFLDL	((ushort)0x0400)
#define PC_ENET_TPSQEL  ((ushort)0x0200)

#endif	/* CONFIG_FADS860T */


/***  BSEIP  **********************************************************/

#ifdef CONFIG_BSEIP
/* This ENET stuff is for the MPC823 with ethernet on SCC2.
 * This is unique to the BSE ip-Engine board.
 */
#define	PROFF_ENET	PROFF_SCC2
#define	CPM_CR_ENET	CPM_CR_CH_SCC2
#define	SCC_ENET	1
#define PA_ENET_RXD	((ushort)0x0004)
#define PA_ENET_TXD	((ushort)0x0008)
#define PA_ENET_TCLK	((ushort)0x0100)
#define PA_ENET_RCLK	((ushort)0x0200)
#define PB_ENET_TENA	((uint)0x00002000)
#define PC_ENET_CLSN	((ushort)0x0040)
#define PC_ENET_RENA	((ushort)0x0080)

/* BSE uses port B and C bits for PHY control also.
*/
#define PB_BSE_POWERUP	((uint)0x00000004)
#define PB_BSE_FDXDIS	((uint)0x00008000)
#define PC_BSE_LOOPBACK	((ushort)0x0800)

#define SICR_ENET_MASK	((uint)0x0000ff00)
#define SICR_ENET_CLKRT	((uint)0x00002c00)
#endif	/* CONFIG_BSEIP */

/***  RPXCLASSIC  *****************************************************/

#ifdef CONFIG_RPXCLASSIC
/* Bits in parallel I/O port registers that have to be set/cleared
 * to configure the pins for SCC1 use.
 */
#define	PROFF_ENET	PROFF_SCC1
#define	CPM_CR_ENET	CPM_CR_CH_SCC1
#define	SCC_ENET	0
#define PA_ENET_RXD	((ushort)0x0001)
#define PA_ENET_TXD	((ushort)0x0002)
#define PA_ENET_TCLK	((ushort)0x0200)
#define PA_ENET_RCLK	((ushort)0x0800)
#define PB_ENET_TENA	((uint)0x00001000)
#define PC_ENET_CLSN	((ushort)0x0010)
#define PC_ENET_RENA	((ushort)0x0020)

/* Control bits in the SICR to route TCLK (CLK2) and RCLK (CLK4) to
 * SCC1.  Also, make sure GR1 (bit 24) and SC1 (bit 25) are zero.
 */
#define SICR_ENET_MASK	((uint)0x000000ff)
#define SICR_ENET_CLKRT	((uint)0x0000003d)
#endif	/* CONFIG_RPXCLASSIC */

/***  TQM823L, TQM850L, ETX094  ***************************************/

#if defined(CONFIG_TQM823L) || defined(CONFIG_TQM850L) || defined(CONFIG_ETX094)
/* Bits in parallel I/O port registers that have to be set/cleared
 * to configure the pins for SCC2 use.
 */
#define	PROFF_ENET	PROFF_SCC2
#define	CPM_CR_ENET	CPM_CR_CH_SCC2
#define	SCC_ENET	1
#define PA_ENET_RXD	((ushort)0x0004)	/* PA 13 */
#define PA_ENET_TXD	((ushort)0x0008)	/* PA 12 */
#define PA_ENET_RCLK	((ushort)0x0100)	/* PA  7 */
#define PA_ENET_TCLK	((ushort)0x0400)	/* PA  5 */

#define PB_ENET_TENA	((uint)0x00002000)	/* PB 18 */

#define PC_ENET_CLSN	((ushort)0x0040)	/* PC  9 */
#define PC_ENET_RENA	((ushort)0x0080)	/* PC  8 */

/* Control bits in the SICR to route TCLK (CLK3) and RCLK (CLK1) to
 * SCC2.  Also, make sure GR2 (bit 16) and SC2 (bit 17) are zero.
 */
#define SICR_ENET_MASK	((uint)0x0000ff00)
#define SICR_ENET_CLKRT	((uint)0x00002600)
#endif	/* CONFIG_TQM823L, CONFIG_TQM850L, CONFIG_ETX094 */