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/*
* Copyright (c) 2011 The Chromium OS Authors.
* SPDX-License-Identifier: GPL-2.0+
*/
#define DEBUG
#include <common.h>
#include <dm/root.h>
#include <os.h>
#include <asm/state.h>
DECLARE_GLOBAL_DATA_PTR;
/* Enable access to PCI memory with map_sysmem() */
static bool enable_pci_map;
#ifdef CONFIG_PCI
/* Last device that was mapped into memory, and length of mapping */
static struct udevice *map_dev;
unsigned long map_len;
#endif
void reset_cpu(ulong ignored)
{
if (state_uninit())
os_exit(2);
if (dm_uninit())
os_exit(2);
/* This is considered normal termination for now */
os_exit(0);
}
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
reset_cpu(0);
return 0;
}
/* delay x useconds */
void __udelay(unsigned long usec)
{
os_usleep(usec);
}
unsigned long __attribute__((no_instrument_function)) timer_get_us(void)
{
return os_get_nsec() / 1000;
}
int cleanup_before_linux(void)
{
return 0;
}
void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
{
#ifdef CONFIG_PCI
unsigned long plen = len;
void *ptr;
map_dev = NULL;
if (enable_pci_map && !pci_map_physmem(paddr, &len, &map_dev, &ptr)) {
if (plen != len) {
printf("%s: Warning: partial map at %x, wanted %lx, got %lx\n",
__func__, paddr, len, plen);
}
map_len = len;
return ptr;
}
#endif
return (void *)(gd->arch.ram_buf + paddr);
}
void unmap_physmem(const void *vaddr, unsigned long flags)
{
#ifdef CONFIG_PCI
if (map_dev) {
pci_unmap_physmem(vaddr, map_len, map_dev);
map_dev = NULL;
}
#endif
}
void sandbox_set_enable_pci_map(int enable)
{
enable_pci_map = enable;
}
phys_addr_t map_to_sysmem(const void *ptr)
{
return (u8 *)ptr - gd->arch.ram_buf;
}
void flush_dcache_range(unsigned long start, unsigned long stop)
{
}
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