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/*
* Author: Xilinx, Inc.
*
*
* 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.
*
*
* XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS" AS A
* COURTESY TO YOU. BY PROVIDING THIS DESIGN, CODE, OR INFORMATION AS
* ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE, APPLICATION OR STANDARD,
* XILINX IS MAKING NO REPRESENTATION THAT THIS IMPLEMENTATION IS FREE
* FROM ANY CLAIMS OF INFRINGEMENT, AND YOU ARE RESPONSIBLE FOR OBTAINING
* ANY THIRD PARTY RIGHTS YOU MAY REQUIRE FOR YOUR IMPLEMENTATION.
* XILINX EXPRESSLY DISCLAIMS ANY WARRANTY WHATSOEVER WITH RESPECT TO
* THE ADEQUACY OF THE IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY
* WARRANTIES OR REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM
* CLAIMS OF INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE.
*
*
* Xilinx hardware products are not intended for use in life support
* appliances, devices, or systems. Use in such applications is
* expressly prohibited.
*
*
* (c) Copyright 2002-2004 Xilinx Inc.
* All rights reserved.
*
*
* 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.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <common.h>
#include <asm/u-boot.h>
#include <asm/processor.h>
#include <command.h>
#include <config.h>
DECLARE_GLOBAL_DATA_PTR;
#define USE_CHAN1 \
((defined XPAR_UARTNS550_0_BASEADDR) && (defined CFG_INIT_CHAN1))
#define USE_CHAN2 \
((defined XPAR_UARTNS550_1_BASEADDR) && (defined CFG_INIT_CHAN2))
#if USE_CHAN1
#include <ns16550.h>
#endif
#if USE_CHAN1
const NS16550_t COM_PORTS[] = { (NS16550_t) (XPAR_UARTNS550_0_BASEADDR + 3)
#if USE_CHAN2
, (NS16550_t) (XPAR_UARTNS550_1_BASEADDR + 3)
#endif
};
#endif
int
serial_init(void)
{
#if USE_CHAN1
int clock_divisor;
clock_divisor = XPAR_UARTNS550_0_CLOCK_FREQ_HZ / 16 / gd->baudrate;
(void) NS16550_init(COM_PORTS[0], clock_divisor);
#if USE_CHAN2
clock_divisor = XPAR_UARTNS550_1_CLOCK_FREQ_HZ / 16 / gd->baudrate;
(void) NS16550_init(COM_PORTS[1], clock_divisor);
#endif
#endif
return 0;
}
void
serial_putc(const char c)
{
if (c == '\n')
NS16550_putc(COM_PORTS[CFG_DUART_CHAN], '\r');
NS16550_putc(COM_PORTS[CFG_DUART_CHAN], c);
}
int
serial_getc(void)
{
return NS16550_getc(COM_PORTS[CFG_DUART_CHAN]);
}
int
serial_tstc(void)
{
return NS16550_tstc(COM_PORTS[CFG_DUART_CHAN]);
}
void
serial_setbrg(void)
{
#if USE_CHAN1
int clock_divisor;
clock_divisor = XPAR_UARTNS550_0_CLOCK_FREQ_HZ / 16 / gd->baudrate;
NS16550_reinit(COM_PORTS[0], clock_divisor);
#if USE_CHAN2
clock_divisor = XPAR_UARTNS550_1_CLOCK_FREQ_HZ / 16 / gd->baudrate;
NS16550_reinit(COM_PORTS[1], clock_divisor);
#endif
#endif
}
void
serial_puts(const char *s)
{
while (*s) {
serial_putc(*s++);
}
}
#if defined(CONFIG_CMD_KGDB)
void
kgdb_serial_init(void)
{
}
void
putDebugChar(int c)
{
serial_putc(c);
}
void
putDebugStr(const char *str)
{
serial_puts(str);
}
int
getDebugChar(void)
{
return serial_getc();
}
void
kgdb_interruptible(int yes)
{
return;
}
#endif
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