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/* $NetBSD: s3c2xx0reg.h,v 1.4 2004/02/12 03:47:29 bsh Exp $ */
/*-
* Copyright (c) 2002, 2003 Fujitsu Component Limited
* Copyright (c) 2002, 2003 Genetec Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of The Fujitsu Component Limited nor the name of
* Genetec corporation may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY FUJITSU COMPONENT LIMITED AND GENETEC
* CORPORATION ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL FUJITSU COMPONENT LIMITED OR GENETEC
* CORPORATION BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD: release/9.1.0/sys/arm/s3c2xx0/s3c2xx0reg.h 205354 2010-03-20 03:39:35Z imp $
*/
/*
* Register definitions common to S3C2800 and S3C24[01]0
*/
#ifndef _ARM_S3C2XX0_S3C2XX0REG_H_
#define _ARM_S3C2XX0_S3C2XX0REG_H_
/* UART */
/*
* S3C2800, 2410 and 2400 have a common built-in UART block. However,
* there are small diffs in bit position of some registers.
* Following definitions can be foune in s3c{2800,24x0}reg.h for
* that reason.
*
* ULCON_IR (Infra-red mode)
* ULCON_PARITY_SHIFT (Parity mode bit position)
* UMCON_AFC (Auto flow control)
* UMSTAT_DCTS (CTS change)
*/
#define SSCOM_ULCON 0x00 /* UART line control */
/* ULCON_PARITY_SHIFT and ULCON_IR is defined in s3c{2800,24x0}reg.h */
#define ULCON_PARITY_NONE (0<<ULCON_PARITY_SHIFT)
#define ULCON_PARITY_ODD (4<<ULCON_PARITY_SHIFT)
#define ULCON_PARITY_EVEN (5<<ULCON_PARITY_SHIFT)
#define ULCON_PARITY_ONE (6<<ULCON_PARITY_SHIFT)
#define ULCON_PARITY_ZERO (7<<ULCON_PARITY_SHIFT)
#define ULCON_STOP (1<<2)
#define ULCON_LENGTH_5 0
#define ULCON_LENGTH_6 1
#define ULCON_LENGTH_7 2
#define ULCON_LENGTH_8 3
#define SSCOM_UCON 0x04 /* UART control */
#define UCON_TXINT_TYPE (1<<9) /* Tx interrupt. 0=pulse,1=level */
#define UCON_TXINT_TYPE_LEVEL UCON_TXINT_TYPE
#define UCON_TXINT_TYPE_PULSE 0
#define UCON_RXINT_TYPE (1<<8) /* Rx interrupt */
#define UCON_RXINT_TYPE_LEVEL UCON_RXINT_TYPE
#define UCON_RXINT_TYPE_PULSE 0
#define UCON_TOINT (1<<7) /* Rx timeout interrupt */
#define UCON_ERRINT (1<<6) /* receive error interrupt */
#define UCON_LOOP (1<<5) /* loopback */
#define UCON_SBREAK (1<<4) /* send break */
#define UCON_TXMODE_DISABLE (0<<2)
#define UCON_TXMODE_INT (1<<2)
#define UCON_TXMODE_DMA (2<<2)
#define UCON_TXMODE_MASK (3<<2)
#define UCON_RXMODE_DISABLE (0<<0)
#define UCON_RXMODE_INT (1<<0)
#define UCON_RXMODE_DMA (2<<0)
#define UCON_RXMODE_MASK (3<<0)
#define SSCOM_UFCON 0x08 /* FIFO control */
#define UFCON_TXTRIGGER_0 (0<<6)
#define UFCON_TXTRIGGER_4 (1<<6)
#define UFCON_TXTRIGGER_8 (2<<6)
#define UFCON_TXTRIGGER_16 (3<<6)
#define UFCON_RXTRIGGER_4 (0<<4)
#define UFCON_RXTRIGGER_8 (1<<4)
#define UFCON_RXTRIGGER_12 (2<<4)
#define UFCON_RXTRIGGER_16 (3<<4)
#define UFCON_TXFIFO_RESET (1<<2)
#define UFCON_RXFIFO_RESET (1<<1)
#define UFCON_FIFO_ENABLE (1<<0)
#define SSCOM_UMCON 0x0c /* MODEM control */
/* UMCON_AFC is defined in s3c{2800,24x0}reg.h */
#define UMCON_RTS (1<<0) /* Request to send */
#define SSCOM_UTRSTAT 0x10 /* Status register */
#define UTRSTAT_TXSHIFTER_EMPTY (1<<2)
#define UTRSTAT_TXEMPTY (1<<1) /* TX fifo or buffer empty */
#define UTRSTAT_RXREADY (1<<0) /* RX fifo or buffer is not empty */
#define SSCOM_UERSTAT 0x14 /* Error status register */
#define UERSTAT_BREAK (1<<3) /* Break signal, not 2410 */
#define UERSTAT_FRAME (1<<2) /* Frame error */
#define UERSTAT_PARITY (1<<1) /* Parity error, not 2410 */
#define UERSTAT_OVERRUN (1<<0) /* Overrun */
#define UERSTAT_ALL_ERRORS \
(UERSTAT_OVERRUN|UERSTAT_BREAK|UERSTAT_FRAME|UERSTAT_PARITY)
#define SSCOM_UFSTAT 0x18 /* Fifo status register */
#define UFSTAT_TXFULL (1<<9) /* Tx fifo full */
#define UFSTAT_RXFULL (1<<8) /* Rx fifo full */
#define UFSTAT_TXCOUNT_SHIFT 4 /* TX FIFO count */
#define UFSTAT_TXCOUNT (0x0f<<UFSTAT_TXCOUNT_SHIFT)
#define UFSTAT_RXCOUNT_SHIFT 0 /* RX FIFO count */
#define UFSTAT_RXCOUNT (0x0f<<UFSTAT_RXCOUNT_SHIFT)
#define SSCOM_UMSTAT 0x1c /* Modem status register */
/* UMSTAT_DCTS is defined in s3c{2800,24x0}reg.h */
#define UMSTAT_CTS (1<<0) /* Clear to send */
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define SSCOM_UTXH 0x20 /* Transmit data register */
#define SSCOM_URXH 0x24 /* Receive data register */
#else
#define SSCOM_UTXH 0x23 /* Transmit data register */
#define SSCOM_URXH 0x27 /* Receive data register */
#endif
#define SSCOM_UBRDIV 0x28 /* baud-reate divisor */
#define SSCOM_SIZE 0x2c
/* Interrupt controller (Common to S3c2800/2400X/2410X) */
#define INTCTL_SRCPND 0x00 /* Interrupt request status */
#define INTCTL_INTMOD 0x04 /* Interrupt mode (FIQ/IRQ) */
#define INTCTL_INTMSK 0x08 /* Interrupt mask */
#endif /* _ARM_S3C2XX0_S3C2XX0REG_H_ */