2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
3 * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
34 #include "api_public.h"
38 * MD primitives supporting placement of module data
42 uboot_vm_translate(vm_offset_t o) {
44 static uintptr_t start = 0;
45 static size_t size = 0;
49 if ((si = ub_get_sys_info()) == NULL)
50 panic("could not retrieve system info");
52 /* Find start/size of largest DRAM block. */
53 for (i = 0; i < si->mr_no; i++) {
54 if (si->mr[i].flags == MR_ATTR_DRAM
55 && si->mr[i].size > size) {
56 start = si->mr[i].start;
57 size = si->mr[i].size;
62 panic("No suitable DRAM?\n");
64 printf("Loading into memory region 0x%08X-0x%08X (%d MiB)\n",
65 start, start + size, size / 1024 / 1024);
69 panic("Address offset 0x%08jX bigger than size 0x%08X\n",
71 return (void *)(start + o);
75 uboot_copyin(const void *src, vm_offset_t dest, const size_t len)
77 bcopy(src, uboot_vm_translate(dest), len);
82 uboot_copyout(const vm_offset_t src, void *dest, const size_t len)
84 bcopy(uboot_vm_translate(src), dest, len);
89 uboot_readin(const int fd, vm_offset_t dest, const size_t len)
91 return (read(fd, uboot_vm_translate(dest), len));