cpu_info.c 1.7 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
  1. /*
  2. * (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
  3. * (C) Copyright 2012 Renesas Solutions Corp.
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. */
  23. #include <common.h>
  24. #include <asm/io.h>
  25. #ifdef CONFIG_ARCH_CPU_INIT
  26. int arch_cpu_init(void)
  27. {
  28. icache_enable();
  29. return 0;
  30. }
  31. #endif
  32. #ifndef CONFIG_SYS_DCACHE_OFF
  33. void enable_caches(void)
  34. {
  35. dcache_enable();
  36. }
  37. #endif
  38. #ifdef CONFIG_DISPLAY_CPUINFO
  39. static u32 __rmobile_get_cpu_type(void)
  40. {
  41. return 0x0;
  42. }
  43. u32 rmobile_get_cpu_type(void)
  44. __attribute__((weak, alias("__rmobile_get_cpu_type")));
  45. static u32 __rmobile_get_cpu_rev(void)
  46. {
  47. return 0;
  48. }
  49. u32 rmobile_get_cpu_rev(void)
  50. __attribute__((weak, alias("__rmobile_get_cpu_rev")));
  51. int print_cpuinfo(void)
  52. {
  53. switch (rmobile_get_cpu_type()) {
  54. case 0x37:
  55. printf("CPU: Renesas Electronics SH73A0 rev %d\n",
  56. rmobile_get_cpu_rev());
  57. break;
  58. default:
  59. printf("CPU: Renesas Electronics CPU rev %d\n",
  60. rmobile_get_cpu_rev());
  61. break;
  62. }
  63. return 0;
  64. }
  65. #endif /* CONFIG_DISPLAY_CPUINFO */