serial.c 2.4 KB

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  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. * See file CREDITS for list of people who contributed to this
  12. * project.
  13. *
  14. * This program is free software; you can redistribute it and/or
  15. * modify it under the terms of the GNU General Public License as
  16. * published by the Free Software Foundation; either version 2 of
  17. * the License, or (at your option) any later version.
  18. *
  19. * This program is distributed in the hope that it will be useful,
  20. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  22. * GNU General Public License for more details.
  23. *
  24. * You should have received a copy of the GNU General Public License
  25. * along with this program; if not, write to the Free Software
  26. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  27. * MA 02111-1307 USA
  28. */
  29. /*
  30. * serial.c - serial support for esd cpci750 board
  31. */
  32. /* supports the MPSC */
  33. #include <common.h>
  34. #include <command.h>
  35. #include <serial.h>
  36. #include <linux/compiler.h>
  37. #include "../../Marvell/include/memory.h"
  38. #include "serial.h"
  39. #include "mpsc.h"
  40. DECLARE_GLOBAL_DATA_PTR;
  41. static int p3mx_serial_init(void)
  42. {
  43. mpsc_init (gd->baudrate);
  44. return (0);
  45. }
  46. static void p3mx_serial_putc(const char c)
  47. {
  48. if (c == '\n')
  49. mpsc_putchar ('\r');
  50. mpsc_putchar (c);
  51. }
  52. static int p3mx_serial_getc(void)
  53. {
  54. return mpsc_getchar ();
  55. }
  56. static int p3mx_serial_tstc(void)
  57. {
  58. return mpsc_test_char ();
  59. }
  60. static void p3mx_serial_setbrg(void)
  61. {
  62. galbrg_set_baudrate (CONFIG_MPSC_PORT, gd->baudrate);
  63. }
  64. static struct serial_device p3mx_serial_drv = {
  65. .name = "p3mx_serial",
  66. .start = p3mx_serial_init,
  67. .stop = NULL,
  68. .setbrg = p3mx_serial_setbrg,
  69. .putc = p3mx_serial_putc,
  70. .puts = default_serial_puts,
  71. .getc = p3mx_serial_getc,
  72. .tstc = p3mx_serial_tstc,
  73. };
  74. void p3mx_serial_initialize(void)
  75. {
  76. serial_register(&p3mx_serial_drv);
  77. }
  78. __weak struct serial_device *default_serial_console(void)
  79. {
  80. return &p3mx_serial_drv;
  81. }
  82. #if defined(CONFIG_CMD_KGDB)
  83. void kgdb_serial_init (void)
  84. {
  85. }
  86. void putDebugChar (int c)
  87. {
  88. serial_putc (c);
  89. }
  90. void putDebugStr (const char *str)
  91. {
  92. serial_puts (str);
  93. }
  94. int getDebugChar (void)
  95. {
  96. return serial_getc ();
  97. }
  98. void kgdb_interruptible (int yes)
  99. {
  100. return;
  101. }
  102. #endif