165 lines
6.4 KiB
C
165 lines
6.4 KiB
C
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/*******************************************************************************
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Copyright (C) Marvell International Ltd. and its affiliates
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This software file (the "File") is owned and distributed by Marvell
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International Ltd. and/or its affiliates ("Marvell") under the following
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alternative licensing terms. Once you have made an election to distribute the
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File under one of the following license alternatives, please (i) delete this
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introductory statement regarding license alternatives, (ii) delete the two
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license alternatives that you have not elected to use and (iii) preserve the
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Marvell copyright notice above.
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********************************************************************************
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Marvell Commercial License Option
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If you received this File from Marvell and you have entered into a commercial
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license agreement (a "Commercial License") with Marvell, the File is licensed
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to you under the terms of the applicable Commercial License.
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********************************************************************************
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Marvell GPL License Option
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If you received this File from Marvell, you may opt to use, redistribute and/or
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modify this File in accordance with the terms and conditions of the General
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Public License Version 2, June 1991 (the "GPL License"), a copy of which is
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available along with the File in the license.txt file or by writing to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 or
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on the worldwide web at http://www.gnu.org/licenses/gpl.txt.
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THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED
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WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY
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DISCLAIMED. The GPL License provides additional details about this warranty
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disclaimer.
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********************************************************************************
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Marvell BSD License Option
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If you received this File from Marvell, you may opt to use, redistribute and/or
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modify this File under the following licensing terms.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of Marvell nor the names of its contributors may be
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used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************/
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#ifndef __NS16550_H__
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#define __NS16550_H__
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#include "mvCommon.h"
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#include "mvOs.h"
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#include "ctrlEnv/mvCtrlEnvSpec.h"
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#ifdef MV78XX0
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#include "idma/mvIdma.h"
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#include "ctrlEnv/sys/mvSysIdma.h"
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#endif
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/* This structure describes the registers offsets for one UART port(channel) */
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typedef struct mvUartPort
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{
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MV_U8 rbr; /* 0 = 0-3*/
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MV_U8 pad1[3];
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MV_U8 ier; /* 1 = 4-7*/
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MV_U8 pad2[3];
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MV_U8 fcr; /* 2 = 8-b*/
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MV_U8 pad3[3];
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MV_U8 lcr; /* 3 = c-f*/
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MV_U8 pad4[3];
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MV_U8 mcr; /* 4 = 10-13*/
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MV_U8 pad5[3];
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MV_U8 lsr; /* 5 = 14-17*/
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MV_U8 pad6[3];
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MV_U8 msr; /* 6 =18-1b*/
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MV_U8 pad7[3];
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MV_U8 scr; /* 7 =1c-1f*/
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MV_U8 pad8[3];
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} MV_UART_PORT;
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#if defined(MV_UART_OVER_PEX_WA) || defined(MV_UART_OVER_PCI_WA)
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#define mvUartBase(port) \
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((MV_UART_PORT *)(0xF2000000 + MV_UART_CHAN_BASE(port)))
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#else
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#define mvUartBase(port) \
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((MV_UART_PORT *)(INTER_REGS_BASE + MV_UART_CHAN_BASE(port)))
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#endif
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/* aliases - for registers which has the same offsets */
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#define thr rbr
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#define iir fcr
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#define dll rbr
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#define dlm ier
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/* registers feilds */
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#define FCR_FIFO_EN BIT0 /* fifo enable*/
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#define FCR_RXSR BIT1 /* reciever soft reset*/
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#define FCR_TXSR BIT2 /* transmitter soft reset*/
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#define MCR_RTS BIT1 /* ready to send */
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#define MCR_AFCE BIT5 /* Auto Flow Control Enable */
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#define LCR_WLS_OFFS 0
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#define LCR_WLS_MASK 0x3 << LCR_WLS_OFFS /* character length mask */
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#define LCR_WLS_5 0x0 << LCR_WLS_OFFS /* 5 bit character length */
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#define LCR_WLS_6 0x1 << LCR_WLS_OFFS /* 6 bit character length */
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#define LCR_WLS_7 0x2 << LCR_WLS_OFFS /* 7 bit character length */
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#define LCR_WLS_8 0x3 << LCR_WLS_OFFS /* 8 bit character length */
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#define LCR_STP_OFFS 2
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#define LCR_1_STB 0x0 << LCR_STP_OFFS /* Number of stop Bits */
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#define LCR_2_STB 0x1 << LCR_STP_OFFS /* Number of stop Bits */
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#define LCR_PEN 0x8 /* Parity eneble*/
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#define LCR_PS_OFFS 4
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#define LCR_EPS 0x1 << LCR_PS_OFFS /* Even Parity Select*/
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#define LCR_OPS 0x0 << LCR_PS_OFFS /* Odd Parity Select*/
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#define LCR_SBRK_OFFS 0x6
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#define LCR_SBRK 0x1 << LCR_SBRK_OFFS /* Set Break*/
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#define LCR_DIVL_OFFS 7
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#define LCR_DIVL_EN 0x1 << LCR_DIVL_OFFS /* Divisior latch enable*/
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#define LSR_DR BIT0 /* Data ready */
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#define LSR_OE BIT1 /* Overrun */
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#define LSR_PE BIT2 /* Parity error */
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#define LSR_FE BIT3 /* Framing error */
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#define LSR_BI BIT4 /* Break */
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#define LSR_THRE BIT5 /* Xmit holding register empty */
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#define LSR_TEMT BIT6 /* Xmitter empty */
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#define LSR_ERR BIT7 /* Error */
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/* useful defaults for LCR*/
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#define LCR_8N1 LCR_WLS_8 | LCR_1_STB
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/* APIs */
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MV_VOID mvUartPutc(MV_U32 port, MV_U8 c);
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MV_U8 mvUartGetc(MV_U32 port);
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MV_BOOL mvUartTstc(MV_U32 port);
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MV_VOID mvUartInit(MV_U32 port, MV_U32 baudDivisor, MV_UART_PORT* base);
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#endif
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