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/*
* arch/ppc/syslib/mv64x60_dbg.c
*
* KGDB and progress routines for the Marvell/Galileo MV64x60 (Discovery).
*
* Author: Mark A. Greer <mgreer@mvista.com>
*
* 2003 (c) MontaVista Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*/
/*
*****************************************************************************
*
* Low-level MPSC/UART I/O routines
*
*****************************************************************************
*/
#include <linux/config.h>
#include <linux/irq.h>
#include <asm/delay.h>
#include <asm/mv64x60.h>
#include <asm/machdep.h>
#if defined(CONFIG_SERIAL_TEXT_DEBUG)
#define MPSC_CHR_1 0x000c
#define MPSC_CHR_2 0x0010
static struct mv64x60_handle mv64x60_dbg_bh;
void
mv64x60_progress_init(u32 base)
{
mv64x60_dbg_bh.v_base = base;
return;
}
static void
mv64x60_polled_putc(int chan, char c)
{
u32 offset;
if (chan == 0)
offset = 0x8000;
else
offset = 0x9000;
mv64x60_write(&mv64x60_dbg_bh, offset + MPSC_CHR_1, (u32)c);
mv64x60_write(&mv64x60_dbg_bh, offset + MPSC_CHR_2, 0x200);
udelay(2000);
}
void
mv64x60_mpsc_progress(char *s, unsigned short hex)
{
volatile char c;
mv64x60_polled_putc(0, '\r');
while ((c = *s++) != 0)
mv64x60_polled_putc(0, c);
mv64x60_polled_putc(0, '\n');
mv64x60_polled_putc(0, '\r');
return;
}
#endif /* CONFIG_SERIAL_TEXT_DEBUG */
#if defined(CONFIG_KGDB)
#if defined(CONFIG_KGDB_TTYS0)
#define KGDB_PORT 0
#elif defined(CONFIG_KGDB_TTYS1)
#define KGDB_PORT 1
#else
#error "Invalid kgdb_tty port"
#endif
void
putDebugChar(unsigned char c)
{
mv64x60_polled_putc(KGDB_PORT, (char)c);
}
int
getDebugChar(void)
{
unsigned char c;
while (!mv64x60_polled_getc(KGDB_PORT, &c));
return (int)c;
}
void
putDebugString(char* str)
{
while (*str != '\0') {
putDebugChar(*str);
str++;
}
putDebugChar('\r');
return;
}
void
kgdb_interruptible(int enable)
{
}
void
kgdb_map_scc(void)
{
if (ppc_md.early_serial_map)
ppc_md.early_serial_map();
}
#endif /* CONFIG_KGDB */
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