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/*
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* Copyright : (C) 2022 Phytium Information Technology, Inc.
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* All Rights Reserved.
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*
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* This program is OPEN SOURCE software: you can redistribute it and/or modify it
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* under the terms of the Phytium Public License as published by the Phytium Technology Co.,Ltd,
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* either version 1.0 of 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,but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the Phytium Public License for more details.
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*
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*
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* FilePath: early_uart.c
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* Date: 2022-02-11 13:33:28
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* LastEditTime: 2022-02-17 17:59:26
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* Description: This file is for
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*
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* Modify History:
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* Ver Who Date Changes
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* ----- ------ -------- --------------------------------------
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* 1.0 rtos 2022/6/25 init commit
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* 1.1 zhangyan 2023/7/11 modify
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*/
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/***************************** Include Files *********************************/
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#include "rtconfig.h"
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#ifdef RT_USING_SMART
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#include <ioremap.h>
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#endif
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#include "fkernel.h"
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#include "fio.h"
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#include "fparameters.h"
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#include "fearly_uart.h"
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#include "fpl011.h"
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/**************************** Type Definitions *******************************/
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static FPl011 early_uart;
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void FEarlyUartProbe(void)
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{
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FPl011Config config;
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config = *FPl011LookupConfig(EARLY_UART_CTRL_ID);
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#ifdef RT_USING_SMART
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config.base_address = (uintptr)rt_ioremap((void *)config.base_address, 0x2000);
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#endif
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FPl011CfgInitialize(&early_uart, &config);
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return;
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}
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/************************** Constant Definitions *****************************/
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/************************** Variable Definitions *****************************/
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/***************** Macros (Inline Functions) Definitions *********************/
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/*****************************************************************************/
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void OutByte(s8 byte)
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{
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FPl011BlockSend(&early_uart, (u8 *)&byte, 1);
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}
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char GetByte(void)
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{
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return (char)(FPl011BlockReceive(&early_uart));
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} |
