arch/all-pc/boot/grub2-aros/grub-core/kern/mips/init.c

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2009  Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <grub/kernel.h>
  20 #include <grub/env.h>
  21 #include <grub/cpu/time.h>
  22 #include <grub/cpu/mips.h>
  23
  24 /* FIXME: use interrupt to count high.  */
  25 grub_uint64_t
  26 grub_get_rtc (void)
  27 {
  28   static grub_uint32_t high = 0;
  29   static grub_uint32_t last = 0;
  30   grub_uint32_t low;
  31
  32   asm volatile ("mfc0 %0, " GRUB_CPU_MIPS_COP0_TIMER_COUNT : "=r" (low));
  33   if (low < last)
  34     high++;
  35   last = low;
  36
  37   return (((grub_uint64_t) high) << 32) | low;
  38 }
  39
  40 void
  41 grub_machine_get_bootlocation (char **device __attribute__ ((unused)),
  42                                char **path __attribute__ ((unused)))
  43 {
  44 }