1/*
2 * Old U-boot compatibility for 85xx
3 *
4 * Author: Scott Wood <scottwood@freescale.com>
5 *
6 * Copyright (c) 2007 Freescale Semiconductor, Inc.
7 *
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.
11 */
12
13#include "ops.h"
14#include "stdio.h"
15
16#define TARGET_85xx
17#include "ppcboot.h"
18
19static bd_t bd;
20extern char _end[];
21extern char _dtb_start[], _dtb_end[];
22
23static void platform_fixups(void)
24{
25	void *soc;
26
27	dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
28	dt_fixup_mac_addresses(bd.bi_enetaddr, bd.bi_enet1addr,
29	                       bd.bi_enet2addr);
30	dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, bd.bi_busfreq);
31
32	/* Unfortunately, the specific model number is encoded in the
33	 * soc node name in existing dts files -- once that is fixed,
34	 * this can do a simple path lookup.
35	 */
36	soc = find_node_by_devtype(NULL, "soc");
37	if (soc) {
38		void *serial = NULL;
39
40		setprop(soc, "bus-frequency", &bd.bi_busfreq,
41		        sizeof(bd.bi_busfreq));
42
43		while ((serial = find_node_by_devtype(serial, "serial"))) {
44			if (get_parent(serial) != soc)
45				continue;
46
47			setprop(serial, "clock-frequency", &bd.bi_busfreq,
48			        sizeof(bd.bi_busfreq));
49		}
50	}
51}
52
53void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
54                   unsigned long r6, unsigned long r7)
55{
56	unsigned long end_of_ram = bd.bi_memstart + bd.bi_memsize;
57	unsigned long avail_ram = end_of_ram - (unsigned long)_end;
58
59	memcpy(&bd, (bd_t *)r3, sizeof(bd));
60	loader_info.initrd_addr = r4;
61	loader_info.initrd_size = r4 ? r5 - r4 : 0;
62	loader_info.cmdline = (char *)r6;
63	loader_info.cmdline_len = r7 - r6;
64
65	simple_alloc_init(_end, avail_ram - 1024*1024, 32, 64);
66	ft_init(_dtb_start, _dtb_end - _dtb_start, 32);
67	serial_console_init();
68	platform_ops.fixups = platform_fixups;
69}
70