2 * Copyright (c) 2011 The Chromium OS Authors.
3 * SPDX-License-Identifier: GPL-2.0+
12 #include <asm/state.h>
15 DECLARE_GLOBAL_DATA_PTR;
17 /* Enable access to PCI memory with map_sysmem() */
18 static bool enable_pci_map;
21 /* Last device that was mapped into memory, and length of mapping */
22 static struct udevice *map_dev;
23 unsigned long map_len;
26 void sandbox_exit(void)
28 /* Do this here while it still has an effect */
36 /* This is considered normal termination for now */
40 /* delay x useconds */
41 void __udelay(unsigned long usec)
43 struct sandbox_state *state = state_get_current();
45 if (!state->skip_delays)
49 int cleanup_before_linux(void)
54 int cleanup_before_linux_select(int flags)
59 void *map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
61 #if defined(CONFIG_PCI) && !defined(CONFIG_SPL_BUILD)
62 unsigned long plen = len;
66 if (enable_pci_map && !pci_map_physmem(paddr, &len, &map_dev, &ptr)) {
68 printf("%s: Warning: partial map at %x, wanted %lx, got %lx\n",
69 __func__, paddr, len, plen);
76 return (void *)(gd->arch.ram_buf + paddr);
79 void unmap_physmem(const void *vaddr, unsigned long flags)
83 pci_unmap_physmem(vaddr, map_len, map_dev);
89 void sandbox_set_enable_pci_map(int enable)
91 enable_pci_map = enable;
94 phys_addr_t map_to_sysmem(const void *ptr)
96 return (u8 *)ptr - gd->arch.ram_buf;
99 void flush_dcache_range(unsigned long start, unsigned long stop)
103 void invalidate_dcache_range(unsigned long start, unsigned long stop)
107 int sandbox_read_fdt_from_file(void)
109 struct sandbox_state *state = state_get_current();
110 const char *fname = state->fdt_fname;
116 blob = map_sysmem(CONFIG_SYS_FDT_LOAD_ADDR, 0);
117 if (!state->fdt_fname) {
118 err = fdt_create_empty_tree(blob, 256);
121 printf("Unable to create empty FDT: %s\n", fdt_strerror(err));
125 err = os_get_filesize(fname, &size);
127 printf("Failed to file FDT file '%s'\n", fname);
130 fd = os_open(fname, OS_O_RDONLY);
132 printf("Failed to open FDT file '%s'\n", fname);
135 if (os_read(fd, blob, size) != size) {
147 ulong timer_get_boot_us(void)
149 static uint64_t base_count;
150 uint64_t count = os_get_nsec();
155 return (count - base_count) / 1000;