[POWERPC] 85xx: Fix 8548CDS reset bug
[linux-2.6] / arch / powerpc / boot / cuboot-85xx.c
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 #include "cuboot.h"
16
17 #define TARGET_85xx
18 #include "ppcboot.h"
19
20 static bd_t bd;
21 extern char _dtb_start[], _dtb_end[];
22
23 static 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
53 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
54                    unsigned long r6, unsigned long r7)
55 {
56         CUBOOT_INIT();
57         ft_init(_dtb_start, _dtb_end - _dtb_start, 32);
58         serial_console_init();
59         platform_ops.fixups = platform_fixups;
60 }