xref: /linux/arch/powerpc/boot/cuboot-824x.c (revision ca55b2fef3a9373fcfc30f82fd26bc7fccbda732)
1 /*
2  * Old U-boot compatibility for 824x
3  *
4  * Copyright (c) 2007 Freescale Semiconductor, Inc.
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License version 2 as published
8  * by the Free Software Foundation.
9  */
10 
11 #include "ops.h"
12 #include "stdio.h"
13 #include "cuboot.h"
14 
15 #define TARGET_824x
16 #include "ppcboot.h"
17 
18 static bd_t bd;
19 
20 
21 static void platform_fixups(void)
22 {
23 	void *soc;
24 
25 	dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
26 	dt_fixup_mac_addresses(bd.bi_enetaddr);
27 	dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
28 
29 	soc = find_node_by_devtype(NULL, "soc");
30 	if (soc) {
31 		void *serial = NULL;
32 
33 		setprop(soc, "bus-frequency", &bd.bi_busfreq,
34 		        sizeof(bd.bi_busfreq));
35 
36 		while ((serial = find_node_by_devtype(serial, "serial"))) {
37 			if (get_parent(serial) != soc)
38 				continue;
39 
40 			setprop(serial, "clock-frequency", &bd.bi_busfreq,
41 			        sizeof(bd.bi_busfreq));
42 		}
43 	}
44 }
45 
46 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
47                    unsigned long r6, unsigned long r7)
48 {
49 	CUBOOT_INIT();
50 	fdt_init(_dtb_start);
51 	serial_console_init();
52 	platform_ops.fixups = platform_fixups;
53 }
54