43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/*
|
|
* Copyright (C) 2014 Antony Pavlov <antonynpavlov@gmail.com>
|
|
*
|
|
* This file is part of barebox.
|
|
* 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 version 2
|
|
* as published by the Free Software Foundation.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
/** @file
|
|
* This File contains declaration for early output support
|
|
*/
|
|
#ifndef __INCLUDE_ARCH_DEBUG_LL_H__
|
|
#define __INCLUDE_ARCH_DEBUG_LL_H__
|
|
|
|
#include <asm/io.h>
|
|
#include <mach/hardware.h>
|
|
|
|
#define DEBUG_LL_UART_ADDR UEMD_UART0_BASE
|
|
#define DEBUG_LL_UART_RSHFT 2
|
|
|
|
#define rbr (0 << DEBUG_LL_UART_RSHFT)
|
|
#define lsr (5 << DEBUG_LL_UART_RSHFT)
|
|
#define LSR_THRE 0x20 /* Xmit holding register empty */
|
|
|
|
static inline void PUTC_LL(char ch)
|
|
{
|
|
while (!(__raw_readb(DEBUG_LL_UART_ADDR + lsr) & LSR_THRE))
|
|
;
|
|
|
|
__raw_writeb(ch, DEBUG_LL_UART_ADDR + rbr);
|
|
}
|
|
|
|
#endif /* __INCLUDE_ARCH_DEBUG_LL_H__ */
|