LXR uboot/arch/sandbox/cpu/cpu.c

   1/*
   2 * Copyright (c) 2011 The Chromium OS Authors.
   3 * SPDX-License-Identifier:     GPL-2.0+
   4 */
   5
   6#include <common.h>
   7#include <os.h>
   8#include <asm/state.h>
   9
  10DECLARE_GLOBAL_DATA_PTR;
  11
  12void reset_cpu(ulong ignored)
  13{
  14        if (state_uninit())
  15                os_exit(2);
  16
  17        /* This is considered normal termination for now */
  18        os_exit(0);
  19}
  20
  21int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  22{
  23        reset_cpu(0);
  24
  25        return 0;
  26}
  27
  28/* delay x useconds */
  29void __udelay(unsigned long usec)
  30{
  31        os_usleep(usec);
  32}
  33
  34unsigned long __attribute__((no_instrument_function)) timer_get_us(void)
  35{
  36        return os_get_nsec() / 1000;
  37}
  38
  39int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
  40{
  41        if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
  42                bootstage_mark(BOOTSTAGE_ID_RUN_OS);
  43                printf("## Transferring control to Linux (at address %08lx)...\n",
  44                       images->ep);
  45                reset_cpu(0);
  46        }
  47
  48        return 0;
  49}
  50
  51int cleanup_before_linux(void)
  52{
  53        return 0;
  54}
  55
  56void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
  57{
  58        return (void *)(gd->arch.ram_buf + paddr);
  59}
  60
  61phys_addr_t map_to_sysmem(void *ptr)
  62{
  63        return (u8 *)ptr - gd->arch.ram_buf;
  64}
  65
  66void flush_dcache_range(unsigned long start, unsigned long stop)
  67{
  68}
  69