u-boot/board/xilinx/ml300/serial.c
Grant Likely 99b0f0fd3f [PATCH 2_4] Use config.h, not xparameters.h, for xilinx targets
Change the xilinx device drivers and board code to include config.h
instead of xparameters.h directly.  config.h always includes the
correct xparameters file.  This change reduces the posibility of
including the wrong file when adding a new xilinx board port

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-02-20 09:04:52 +01:00

154 lines
3.4 KiB
C

/*
* 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 <asm/u-boot.h>
#include <asm/processor.h>
#include <common.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 (CONFIG_COMMANDS & CFG_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 /* CFG_CMD_KGDB */