board/prodrive/p3mx/serial.c

   1 /*
   2  * (C) Copyright 2001
   3  * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
   4  *
   5  * modified for marvell db64360 eval board by
   6  * Ingo Assmus <ingo.assmus@keymile.com>
   7  *
   8  * modified for cpci750 board by
   9  * Reinhard Arlt <reinhard.arlt@esd-electronics.com>
  10  *
  11  * SPDX-License-Identifier:     GPL-2.0+
  12  */
  13
  14 /*
  15  * serial.c - serial support for esd cpci750 board
  16  */
  17
  18 /* supports the MPSC */
  19
  20 #include <common.h>
  21 #include <command.h>
  22 #include <serial.h>
  23 #include <linux/compiler.h>
  24
  25 #include "../../Marvell/include/memory.h"
  26 #include "serial.h"
  27
  28 #include "mpsc.h"
  29
  30 DECLARE_GLOBAL_DATA_PTR;
  31
  32 static int p3mx_serial_init(void)
  33 {
  34         mpsc_init (gd->baudrate);
  35
  36         return (0);
  37 }
  38
  39 static void p3mx_serial_putc(const char c)
  40 {
  41         if (c == '\n')
  42                 mpsc_putchar ('\r');
  43
  44         mpsc_putchar (c);
  45 }
  46
  47 static int p3mx_serial_getc(void)
  48 {
  49         return mpsc_getchar ();
  50 }
  51
  52 static int p3mx_serial_tstc(void)
  53 {
  54         return mpsc_test_char ();
  55 }
  56
  57 static void p3mx_serial_setbrg(void)
  58 {
  59         galbrg_set_baudrate (CONFIG_MPSC_PORT, gd->baudrate);
  60 }
  61
  62 static struct serial_device p3mx_serial_drv = {
  63         .name   = "p3mx_serial",
  64         .start  = p3mx_serial_init,
  65         .stop   = NULL,
  66         .setbrg = p3mx_serial_setbrg,
  67         .putc   = p3mx_serial_putc,
  68         .puts   = default_serial_puts,
  69         .getc   = p3mx_serial_getc,
  70         .tstc   = p3mx_serial_tstc,
  71 };
  72
  73 void p3mx_serial_initialize(void)
  74 {
  75         serial_register(&p3mx_serial_drv);
  76 }
  77
  78 __weak struct serial_device *default_serial_console(void)
  79 {
  80         return &p3mx_serial_drv;
  81 }
  82
  83 #if defined(CONFIG_CMD_KGDB)
  84 void kgdb_serial_init (void)
  85 {
  86 }
  87
  88 void putDebugChar (int c)
  89 {
  90         serial_putc (c);
  91 }
  92
  93 void putDebugStr (const char *str)
  94 {
  95         serial_puts (str);
  96 }
  97
  98 int getDebugChar (void)
  99 {
 100         return serial_getc ();
 101 }
 102
 103 void kgdb_interruptible (int yes)
 104 {
 105         return;
 106 }
 107 #endif