mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 17:58:23 +00:00
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
|
#ifndef __UART_H
|
||
|
|
#define __UART_H
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2004 Cucy Systems (http://www.cucy.com)
|
||
|
|
* Curt Brune <curt@cucy.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
|
||
|
|
*
|
||
|
|
* Description: S3C4510B UART register layout
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* UART LINE CONTROL register */
|
||
|
|
typedef struct __BF_UART_LINE_CTRL {
|
||
|
|
u32 wordLen: 2;
|
||
|
|
u32 nStop: 1;
|
||
|
|
u32 parity: 3;
|
||
|
|
u32 clk: 1;
|
||
|
|
u32 infra_red: 1;
|
||
|
|
u32 unused:24;
|
||
|
|
} BF_UART_LINE_CTRL;
|
||
|
|
|
||
|
|
typedef union _UART_LINE_CTRL {
|
||
|
|
u32 ui;
|
||
|
|
BF_UART_LINE_CTRL bf;
|
||
|
|
} UART_LINE_CTRL;
|
||
|
|
|
||
|
|
/* UART CONTROL register */
|
||
|
|
typedef struct __BF_UART_CTRL {
|
||
|
|
u32 rxMode: 2;
|
||
|
|
u32 rxIrq: 1;
|
||
|
|
u32 txMode: 2;
|
||
|
|
u32 DSR: 1;
|
||
|
|
u32 sendBreak: 1;
|
||
|
|
u32 loopBack: 1;
|
||
|
|
u32 unused:24;
|
||
|
|
} BF_UART_CTRL;
|
||
|
|
|
||
|
|
typedef union _UART_CTRL {
|
||
|
|
u32 ui;
|
||
|
|
BF_UART_CTRL bf;
|
||
|
|
} UART_CTRL;
|
||
|
|
|
||
|
|
/* UART STATUS register */
|
||
|
|
typedef struct __BF_UART_STAT {
|
||
|
|
u32 overrun: 1;
|
||
|
|
u32 parity: 1;
|
||
|
|
u32 frame: 1;
|
||
|
|
u32 breakIrq: 1;
|
||
|
|
u32 DTR: 1;
|
||
|
|
u32 rxReady: 1;
|
||
|
|
u32 txBufEmpty: 1;
|
||
|
|
u32 txComplete: 1;
|
||
|
|
u32 unused:24;
|
||
|
|
} BF_UART_STAT;
|
||
|
|
|
||
|
|
typedef union _UART_STAT {
|
||
|
|
u32 ui;
|
||
|
|
BF_UART_STAT bf;
|
||
|
|
} UART_STAT;
|
||
|
|
|
||
|
|
/* UART BAUD_DIV register */
|
||
|
|
typedef struct __BF_UART_BAUD_DIV {
|
||
|
|
u32 cnt1: 4;
|
||
|
|
u32 cnt0:12;
|
||
|
|
u32 unused:16;
|
||
|
|
} BF_UART_BAUD_DIV;
|
||
|
|
|
||
|
|
typedef union _UART_BAUD_DIV {
|
||
|
|
u32 ui;
|
||
|
|
BF_UART_BAUD_DIV bf;
|
||
|
|
} UART_BAUD_DIV;
|
||
|
|
|
||
|
|
/* UART register block */
|
||
|
|
typedef struct __UART {
|
||
|
|
volatile UART_LINE_CTRL m_lineCtrl;
|
||
|
|
volatile UART_CTRL m_ctrl;
|
||
|
|
volatile UART_STAT m_stat;
|
||
|
|
volatile u32 m_tx;
|
||
|
|
volatile u32 m_rx;
|
||
|
|
volatile UART_BAUD_DIV m_baudDiv;
|
||
|
|
volatile u32 m_baudCnt;
|
||
|
|
volatile u32 m_baudClk;
|
||
|
|
} UART;
|
||
|
|
|
||
|
|
#define NL 0x0A
|
||
|
|
#define CR 0x0D
|
||
|
|
#define BSP 0x08
|
||
|
|
#define ESC 0x1B
|
||
|
|
#define CTRLZ 0x1A
|
||
|
|
#define RUBOUT 0x7F
|
||
|
|
|
||
|
|
#endif
|