upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
191 lines
3.3 KiB
191 lines
3.3 KiB
/*
|
|
* (C) Copyright 2001
|
|
* Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
|
|
*
|
|
* 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 as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* 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.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
/*
|
|
* serial.c - serial support for the gal ev board
|
|
*/
|
|
|
|
/* supports both the 16650 duart and the MPSC */
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <galileo/memory.h>
|
|
|
|
#if (defined CFG_INIT_CHAN1) || (defined CFG_INIT_CHAN2)
|
|
#include <ns16550.h>
|
|
#endif
|
|
|
|
#include "serial.h"
|
|
|
|
#include "mpsc.h"
|
|
|
|
#if (defined CFG_INIT_CHAN1) || (defined CFG_INIT_CHAN2)
|
|
const NS16550_t COM_PORTS[] = { (NS16550_t) CFG_NS16550_COM1,
|
|
(NS16550_t) CFG_NS16550_COM2 };
|
|
#endif
|
|
|
|
#ifdef CONFIG_MPSC
|
|
|
|
int serial_init (void)
|
|
{
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#if (defined CFG_INIT_CHAN1) || (defined CFG_INIT_CHAN2)
|
|
int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
|
|
#endif
|
|
|
|
mpsc_init(gd->baudrate);
|
|
|
|
/* init the DUART chans so that KGDB in the kernel can use them */
|
|
#ifdef CFG_INIT_CHAN1
|
|
NS16550_reinit(COM_PORTS[0], clock_divisor);
|
|
#endif
|
|
#ifdef CFG_INIT_CHAN2
|
|
NS16550_reinit(COM_PORTS[1], clock_divisor);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
serial_putc(const char c)
|
|
{
|
|
if (c == '\n')
|
|
mpsc_putchar('\r');
|
|
|
|
mpsc_putchar(c);
|
|
}
|
|
|
|
int
|
|
serial_getc(void)
|
|
{
|
|
return mpsc_getchar();
|
|
}
|
|
|
|
int
|
|
serial_tstc(void)
|
|
{
|
|
return mpsc_test_char();
|
|
}
|
|
|
|
void
|
|
serial_setbrg (void)
|
|
{
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
galbrg_set_baudrate(CONFIG_MPSC_PORT, gd->baudrate);
|
|
}
|
|
|
|
#else /* ! CONFIG_MPSC */
|
|
|
|
int serial_init (void)
|
|
{
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
|
|
|
|
#ifdef CFG_INIT_CHAN1
|
|
(void)NS16550_init(COM_PORTS[0], clock_divisor);
|
|
#endif
|
|
#ifdef CFG_INIT_CHAN2
|
|
(void)NS16550_init(COM_PORTS[1], clock_divisor);
|
|
#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)
|
|
{
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int clock_divisor = CFG_NS16550_CLK / 16 / gd->baudrate;
|
|
|
|
#ifdef CFG_INIT_CHAN1
|
|
NS16550_reinit(COM_PORTS[0], clock_divisor);
|
|
#endif
|
|
#ifdef CFG_INIT_CHAN2
|
|
NS16550_reinit(COM_PORTS[1], clock_divisor);
|
|
#endif
|
|
}
|
|
|
|
#endif /* CONFIG_MPSC */
|
|
|
|
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 */
|
|
|