cpu.c 1.4 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. *
  4. * (C) Copyright 2000-2003
  5. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  6. *
  7. * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
  8. * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
  9. */
  10. #include <common.h>
  11. #include <init.h>
  12. #include <vsprintf.h>
  13. #include <watchdog.h>
  14. #include <command.h>
  15. #include <asm/immap.h>
  16. #include <asm/io.h>
  17. DECLARE_GLOBAL_DATA_PTR;
  18. int do_reset(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
  19. {
  20. rcm_t *rcm = (rcm_t *) (MMAP_RCM);
  21. udelay(1000);
  22. setbits_8(&rcm->rcr, RCM_RCR_SOFTRST);
  23. /* we don't return! */
  24. return 0;
  25. };
  26. #if defined(CONFIG_DISPLAY_CPUINFO)
  27. int print_cpuinfo(void)
  28. {
  29. ccm_t *ccm = (ccm_t *) MMAP_CCM;
  30. u16 msk;
  31. u16 id = 0;
  32. u8 ver;
  33. puts("CPU: ");
  34. msk = (in_be16(&ccm->cir) >> 6);
  35. ver = (in_be16(&ccm->cir) & 0x003f);
  36. switch (msk) {
  37. case 0x6c:
  38. id = 52277;
  39. break;
  40. }
  41. if (id) {
  42. char buf1[32], buf2[32], buf3[32];
  43. printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
  44. ver);
  45. printf(" CPU CLK %s MHz BUS CLK %s MHz FLB CLK %s MHz\n",
  46. strmhz(buf1, gd->cpu_clk),
  47. strmhz(buf2, gd->bus_clk),
  48. strmhz(buf3, gd->arch.flb_clk));
  49. printf(" INP CLK %s MHz VCO CLK %s MHz\n",
  50. strmhz(buf1, gd->arch.inp_clk),
  51. strmhz(buf2, gd->arch.vco_clk));
  52. }
  53. return 0;
  54. }
  55. #endif /* CONFIG_DISPLAY_CPUINFO */