reset.c 885 B

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Processor reset using WDT.
  4. *
  5. * Copyright (C) 2012 Dmitry Bondar <bond@inmys.ru>
  6. * Copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
  7. */
  8. #include <common.h>
  9. #include <cpu_func.h>
  10. #include <asm/io.h>
  11. #include <asm/arch/timer_defs.h>
  12. #include <asm/arch/hardware.h>
  13. void reset_cpu(void)
  14. {
  15. struct davinci_timer *const wdttimer =
  16. (struct davinci_timer *)DAVINCI_WDOG_BASE;
  17. writel(0x08, &wdttimer->tgcr);
  18. writel(readl(&wdttimer->tgcr) | 0x03, &wdttimer->tgcr);
  19. writel(0, &wdttimer->tim12);
  20. writel(0, &wdttimer->tim34);
  21. writel(0, &wdttimer->prd12);
  22. writel(0, &wdttimer->prd34);
  23. writel(readl(&wdttimer->tcr) | 0x40, &wdttimer->tcr);
  24. writel(readl(&wdttimer->wdtcr) | 0x4000, &wdttimer->wdtcr);
  25. writel(0xa5c64000, &wdttimer->wdtcr);
  26. writel(0xda7e4000, &wdttimer->wdtcr);
  27. writel(0x4000, &wdttimer->wdtcr);
  28. while (1)
  29. /*nothing*/;
  30. }