52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/*
|
|
* Copyright (C) 2011
|
|
* Author: Jan Weitzel <j.weitzel@phytec.de>
|
|
* based on arch/arm/mach-versatile/include/mach/debug_ll.h
|
|
*
|
|
* barebox 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.
|
|
*
|
|
* barebox 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.
|
|
*/
|
|
|
|
#ifndef __MACH_DEBUG_LL_H__
|
|
#define __MACH_DEBUG_LL_H__
|
|
|
|
#include <asm/io.h>
|
|
|
|
#ifdef CONFIG_ARCH_OMAP3
|
|
#include <mach/omap3-silicon.h>
|
|
|
|
#ifdef CONFIG_OMAP3EVM_UART1
|
|
#define UART_BASE OMAP_UART1_BASE
|
|
#else
|
|
#define UART_BASE OMAP_UART3_BASE
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_OMAP4
|
|
#include <mach/omap4-silicon.h>
|
|
#define UART_BASE OMAP44XX_UART3_BASE
|
|
#endif
|
|
|
|
#define LSR_THRE 0x20 /* Xmit holding register empty */
|
|
#define LSR (5 << 2)
|
|
#define THR (0 << 2)
|
|
|
|
static inline void PUTC_LL(char c)
|
|
{
|
|
/* Wait until there is space in the FIFO */
|
|
while ((readb(UART_BASE + LSR) & LSR_THRE) == 0);
|
|
/* Send the character */
|
|
writeb(c, UART_BASE + THR);
|
|
/* Wait to make sure it hits the line, in case we die too soon. */
|
|
while ((readb(UART_BASE + LSR) & LSR_THRE) == 0);
|
|
}
|
|
#endif
|