[people/ms/u-boot.git] / include / nios-io.h

/*
 * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
 * Scott McNutt <smcnutt@psyent.com>
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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.
 *
 * This program is distributed in the hope that 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

/*************************************************************************
 * Altera Nios Standard Peripherals
 ************************************************************************/

#ifndef __NIOSIO_H__
#define __NIOSIO_H__

/*------------------------------------------------------------------------
 * UART
 *----------------------------------------------------------------------*/
typedef volatile struct nios_uart_t {
	unsigned	rxdata;		/* Rx data reg */
	unsigned	txdata;		/* Tx data reg */
	unsigned	status;		/* Status reg */
	unsigned	control;	/* Control reg */
	unsigned	divisor;	/* Baud rate divisor reg */
	unsigned	endofpacket;	/* End-of-packet reg */
}nios_uart_t;

/* status register */
#define NIOS_UART_PE		(1 << 0)	/* parity error */
#define NIOS_UART_FE		(1 << 1)	/* frame error */
#define NIOS_UART_BRK		(1 << 2)	/* break detect */
#define NIOS_UART_ROE		(1 << 3)	/* rx overrun */
#define NIOS_UART_TOE		(1 << 4)	/* tx overrun */
#define NIOS_UART_TMT		(1 << 5)	/* tx empty */
#define NIOS_UART_TRDY		(1 << 6)	/* tx ready */
#define NIOS_UART_RRDY		(1 << 7)	/* rx ready */
#define NIOS_UART_E		(1 << 8)	/* exception */
#define NIOS_UART_DCTS		(1 << 10)	/* cts change */
#define NIOS_UART_CTS		(1 << 11)	/* cts */
#define NIOS_UART_EOP		(1 << 12)	/* eop detected */

/* control register */
#define NIOS_UART_IPE		(1 << 0)	/* parity error int ena*/
#define NIOS_UART_IFE		(1 << 1)	/* frame error int ena */
#define NIOS_UART_IBRK		(1 << 2)	/* break detect int ena */
#define NIOS_UART_IROE		(1 << 3)	/* rx overrun int ena */
#define NIOS_UART_ITOE		(1 << 4)	/* tx overrun int ena */
#define NIOS_UART_ITMT		(1 << 5)	/* tx empty int ena */
#define NIOS_UART_ITRDY		(1 << 6)	/* tx ready int ena */
#define NIOS_UART_IRRDY		(1 << 7)	/* rx ready int ena */
#define NIOS_UART_IE		(1 << 8)	/* exception int ena */
#define NIOS_UART_TBRK		(1 << 9)	/* transmit break */
#define NIOS_UART_IDCTS		(1 << 10)	/* cts change int ena */
#define NIOS_UART_RTS		(1 << 11)	/* rts */
#define NIOS_UART_IEOP		(1 << 12)	/* eop detected int ena */


/*------------------------------------------------------------------------
 * TIMER
 *----------------------------------------------------------------------*/
typedef volatile struct nios_timer_t {
	unsigned	status;			/* Timer status reg */
	unsigned	control;		/* Timer control reg */
	unsigned	periodl;		/* Timeout period low */
	unsigned	periodh;		/* Timeout period high */
	unsigned	snapl;			/* Snapshot low */
	unsigned	snaph;			/* Snapshot high */
}nios_timer_t;

/* status register */
#define NIOS_TIMER_TO		(1 << 0)	/* Timeout */
#define NIOS_TIMER_RUN		(1 << 1)	/* Timer running */

/* control register */
#define NIOS_TIMER_ITO		(1 << 0)	/* Timeout int ena */
#define NIOS_TIMER_CONT		(1 << 1)	/* Continuous mode */
#define NIOS_TIMER_START	(1 << 2)	/* Start timer */
#define NIOS_TIMER_STOP		(1 << 3)	/* Stop timer */

#endif /* __NIOSIO_H__ */
Commit	Line	Data
4a551709 WD	1	/*
	2	* (C) Copyright 2003, Psyent Corporation <www.psyent.com>
	3	* Scott McNutt <smcnutt@psyent.com>
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	/*************************************************************************
	25	* Altera Nios Standard Peripherals
	26	************************************************************************/
	27
	28	#ifndef __NIOSIO_H__
	29	#define __NIOSIO_H__
	30
	31	/*------------------------------------------------------------------------
	32	* UART
	33	----------------------------------------------------------------------/
	34	typedef volatile struct nios_uart_t {
	35	unsigned rxdata; /* Rx data reg */
	36	unsigned txdata; /* Tx data reg */
	37	unsigned status; /* Status reg */
	38	unsigned control; /* Control reg */
	39	unsigned divisor; /* Baud rate divisor reg */
	40	unsigned endofpacket; /* End-of-packet reg */
	41	}nios_uart_t;
	42
	43	/* status register */
	44	#define NIOS_UART_PE (1 << 0) /* parity error */
	45	#define NIOS_UART_FE (1 << 1) /* frame error */
	46	#define NIOS_UART_BRK (1 << 2) /* break detect */
	47	#define NIOS_UART_ROE (1 << 3) /* rx overrun */
	48	#define NIOS_UART_TOE (1 << 4) /* tx overrun */
	49	#define NIOS_UART_TMT (1 << 5) /* tx empty */
	50	#define NIOS_UART_TRDY (1 << 6) /* tx ready */
	51	#define NIOS_UART_RRDY (1 << 7) /* rx ready */
	52	#define NIOS_UART_E (1 << 8) /* exception */
	53	#define NIOS_UART_DCTS (1 << 10) /* cts change */
	54	#define NIOS_UART_CTS (1 << 11) /* cts */
	55	#define NIOS_UART_EOP (1 << 12) /* eop detected */
	56
	57	/* control register */
	58	#define NIOS_UART_IPE (1 << 0) /* parity error int ena*/
	59	#define NIOS_UART_IFE (1 << 1) /* frame error int ena */
	60	#define NIOS_UART_IBRK (1 << 2) /* break detect int ena */
	61	#define NIOS_UART_IROE (1 << 3) /* rx overrun int ena */
	62	#define NIOS_UART_ITOE (1 << 4) /* tx overrun int ena */
	63	#define NIOS_UART_ITMT (1 << 5) /* tx empty int ena */
	64	#define NIOS_UART_ITRDY (1 << 6) /* tx ready int ena */
65	#define NIOS_UART_IRRDY (1 << 7) /* rx ready int ena */
66	#define NIOS_UART_IE (1 << 8) /* exception int ena */
67	#define NIOS_UART_TBRK (1 << 9) /* transmit break */
68	#define NIOS_UART_IDCTS (1 << 10) /* cts change int ena */
69	#define NIOS_UART_RTS (1 << 11) /* rts */
70	#define NIOS_UART_IEOP (1 << 12) /* eop detected int ena */
71
72
73	/*------------------------------------------------------------------------
74	* TIMER
75	----------------------------------------------------------------------/
76	typedef volatile struct nios_timer_t {
77	unsigned status; /* Timer status reg */
78	unsigned control; /* Timer control reg */
79	unsigned periodl; /* Timeout period low */
80	unsigned periodh; /* Timeout period high */
81	unsigned snapl; /* Snapshot low */
82	unsigned snaph; /* Snapshot high */
83	}nios_timer_t;
84
85	/* status register */
86	#define NIOS_TIMER_TO (1 << 0) /* Timeout */
87	#define NIOS_TIMER_RUN (1 << 1) /* Timer running */
88
89	/* control register */
90	#define NIOS_TIMER_ITO (1 << 0) /* Timeout int ena */
91	#define NIOS_TIMER_CONT (1 << 1) /* Continuous mode */
92	#define NIOS_TIMER_START (1 << 2) /* Start timer */
93	#define NIOS_TIMER_STOP (1 << 3) /* Stop timer */
94
95	#endif /* __NIOSIO_H__ */