mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-01 17:10:11 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
171 lines
3 KiB
C
171 lines
3 KiB
C
/*
|
|
* (C) Copyright 2001
|
|
* Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
|
|
*
|
|
* modified for marvell db64360 eval board by
|
|
* Ingo Assmus <ingo.assmus@keymile.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
/*
|
|
* serial.c - serial support for the gal ev board
|
|
*/
|
|
|
|
/* supports both the 16650 duart and the MPSC */
|
|
|
|
#include <common.h>
|
|
#include <command.h>
|
|
#include <serial.h>
|
|
#include <linux/compiler.h>
|
|
|
|
#include "../include/memory.h"
|
|
#include "serial.h"
|
|
|
|
#ifdef CONFIG_DB64360
|
|
#include "../db64360/mpsc.h"
|
|
#endif
|
|
|
|
#ifdef CONFIG_DB64460
|
|
#include "../db64460/mpsc.h"
|
|
#endif
|
|
|
|
#include "ns16550.h"
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
#ifdef CONFIG_MPSC
|
|
static int marvell_serial_init(void)
|
|
{
|
|
#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
|
|
int clock_divisor = 230400 / gd->baudrate;
|
|
#endif
|
|
|
|
mpsc_init (gd->baudrate);
|
|
|
|
/* init the DUART chans so that KGDB in the kernel can use them */
|
|
#ifdef CONFIG_SYS_INIT_CHAN1
|
|
NS16550_reinit (COM_PORTS[0], clock_divisor);
|
|
#endif
|
|
#ifdef CONFIG_SYS_INIT_CHAN2
|
|
NS16550_reinit (COM_PORTS[1], clock_divisor);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
static void marvell_serial_putc(const char c)
|
|
{
|
|
if (c == '\n')
|
|
mpsc_putchar ('\r');
|
|
|
|
mpsc_putchar (c);
|
|
}
|
|
|
|
static int marvell_serial_getc(void)
|
|
{
|
|
return mpsc_getchar ();
|
|
}
|
|
|
|
static int marvell_serial_tstc(void)
|
|
{
|
|
return mpsc_test_char ();
|
|
}
|
|
|
|
static void marvell_serial_setbrg(void)
|
|
{
|
|
galbrg_set_baudrate (CONFIG_MPSC_PORT, gd->baudrate);
|
|
}
|
|
|
|
#else /* ! CONFIG_MPSC */
|
|
|
|
static int marvell_serial_init(void)
|
|
{
|
|
int clock_divisor = 230400 / gd->baudrate;
|
|
|
|
#ifdef CONFIG_SYS_INIT_CHAN1
|
|
(void) NS16550_init (0, clock_divisor);
|
|
#endif
|
|
#ifdef CONFIG_SYS_INIT_CHAN2
|
|
(void) NS16550_init (1, clock_divisor);
|
|
#endif
|
|
return (0);
|
|
}
|
|
|
|
static void marvell_serial_putc(const char c)
|
|
{
|
|
if (c == '\n')
|
|
NS16550_putc (COM_PORTS[CONFIG_SYS_DUART_CHAN], '\r');
|
|
|
|
NS16550_putc (COM_PORTS[CONFIG_SYS_DUART_CHAN], c);
|
|
}
|
|
|
|
static int marvell_serial_getc(void)
|
|
{
|
|
return NS16550_getc (COM_PORTS[CONFIG_SYS_DUART_CHAN]);
|
|
}
|
|
|
|
static int marvell_serial_tstc(void)
|
|
{
|
|
return NS16550_tstc (COM_PORTS[CONFIG_SYS_DUART_CHAN]);
|
|
}
|
|
|
|
static void marvell_serial_setbrg(void)
|
|
{
|
|
int clock_divisor = 230400 / gd->baudrate;
|
|
|
|
#ifdef CONFIG_SYS_INIT_CHAN1
|
|
NS16550_reinit (COM_PORTS[0], clock_divisor);
|
|
#endif
|
|
#ifdef CONFIG_SYS_INIT_CHAN2
|
|
NS16550_reinit (COM_PORTS[1], clock_divisor);
|
|
#endif
|
|
}
|
|
|
|
#endif /* CONFIG_MPSC */
|
|
|
|
static struct serial_device marvell_serial_drv = {
|
|
.name = "marvell_serial",
|
|
.start = marvell_serial_init,
|
|
.stop = NULL,
|
|
.setbrg = marvell_serial_setbrg,
|
|
.putc = marvell_serial_putc,
|
|
.puts = default_serial_puts,
|
|
.getc = marvell_serial_getc,
|
|
.tstc = marvell_serial_tstc,
|
|
};
|
|
|
|
void marvell_serial_initialize(void)
|
|
{
|
|
serial_register(&marvell_serial_drv);
|
|
}
|
|
|
|
__weak struct serial_device *default_serial_console(void)
|
|
{
|
|
return &marvell_serial_drv;
|
|
}
|
|
|
|
#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
|