2 * Old U-boot compatibility for 83xx
4 * Author: Scott Wood <scottwood@freescale.com>
6 * Copyright (c) 2007 Freescale Semiconductor, Inc.
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 as published
10 * by the Free Software Foundation.
21 extern char _dtb_start[], _dtb_end[];
23 static void platform_fixups(void)
27 dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
28 dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr);
29 dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
31 /* Unfortunately, the specific model number is encoded in the
32 * soc node name in existing dts files -- once that is fixed,
33 * this can do a simple path lookup.
35 soc = find_node_by_devtype(NULL, "soc");
39 setprop(soc, "bus-frequency", &bd.bi_busfreq,
40 sizeof(bd.bi_busfreq));
42 while ((serial = find_node_by_devtype(serial, "serial"))) {
43 if (get_parent(serial) != soc)
46 setprop(serial, "clock-frequency", &bd.bi_busfreq,
47 sizeof(bd.bi_busfreq));
52 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
53 unsigned long r6, unsigned long r7)
55 unsigned long end_of_ram = bd.bi_memstart + bd.bi_memsize;
56 unsigned long avail_ram = end_of_ram - (unsigned long)_end;
58 memcpy(&bd, (bd_t *)r3, sizeof(bd));
59 loader_info.initrd_addr = r4;
60 loader_info.initrd_size = r4 ? r5 - r4 : 0;
61 loader_info.cmdline = (char *)r6;
62 loader_info.cmdline_len = r7 - r6;
64 simple_alloc_init(_end, avail_ram - 1024*1024, 32, 64);
65 ft_init(_dtb_start, _dtb_end - _dtb_start, 32);
66 serial_console_init();
67 platform_ops.fixups = platform_fixups;