mirror of
https://github.com/AsahiLinux/u-boot
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110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
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#ifndef __UART_H
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#define __UART_H
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/*
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* Copyright (c) 2004 Cucy Systems (http://www.cucy.com)
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* Curt Brune <curt@cucy.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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* Description: S3C4510B UART register layout
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*/
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/* UART LINE CONTROL register */
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typedef struct __BF_UART_LINE_CTRL {
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u32 wordLen: 2;
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u32 nStop: 1;
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u32 parity: 3;
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u32 clk: 1;
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u32 infra_red: 1;
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u32 unused:24;
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} BF_UART_LINE_CTRL;
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typedef union _UART_LINE_CTRL {
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u32 ui;
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BF_UART_LINE_CTRL bf;
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} UART_LINE_CTRL;
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/* UART CONTROL register */
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typedef struct __BF_UART_CTRL {
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u32 rxMode: 2;
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u32 rxIrq: 1;
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u32 txMode: 2;
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u32 DSR: 1;
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u32 sendBreak: 1;
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u32 loopBack: 1;
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u32 unused:24;
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} BF_UART_CTRL;
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typedef union _UART_CTRL {
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u32 ui;
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BF_UART_CTRL bf;
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} UART_CTRL;
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/* UART STATUS register */
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typedef struct __BF_UART_STAT {
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u32 overrun: 1;
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u32 parity: 1;
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u32 frame: 1;
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u32 breakIrq: 1;
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u32 DTR: 1;
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u32 rxReady: 1;
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u32 txBufEmpty: 1;
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u32 txComplete: 1;
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u32 unused:24;
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} BF_UART_STAT;
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typedef union _UART_STAT {
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u32 ui;
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BF_UART_STAT bf;
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} UART_STAT;
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/* UART BAUD_DIV register */
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typedef struct __BF_UART_BAUD_DIV {
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u32 cnt1: 4;
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u32 cnt0:12;
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u32 unused:16;
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} BF_UART_BAUD_DIV;
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typedef union _UART_BAUD_DIV {
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u32 ui;
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BF_UART_BAUD_DIV bf;
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} UART_BAUD_DIV;
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/* UART register block */
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typedef struct __UART {
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volatile UART_LINE_CTRL m_lineCtrl;
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volatile UART_CTRL m_ctrl;
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volatile UART_STAT m_stat;
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volatile u32 m_tx;
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volatile u32 m_rx;
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volatile UART_BAUD_DIV m_baudDiv;
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volatile u32 m_baudCnt;
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volatile u32 m_baudClk;
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} UART;
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#define NL 0x0A
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#define CR 0x0D
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#define BSP 0x08
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#define ESC 0x1B
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#define CTRLZ 0x1A
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#define RUBOUT 0x7F
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#endif
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