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 #define TARGET_CPM2
19 #include "ppcboot.h"
20 
21 static bd_t bd;
22 
23 static void platform_fixups(void)
24 {
25 	void *devp;
26 
27 	dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
28 	dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
29 	dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
30 	dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
31 	dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, bd.bi_busfreq);
32 
33 	/* Unfortunately, the specific model number is encoded in the
34 	 * soc node name in existing dts files -- once that is fixed,
35 	 * this can do a simple path lookup.
36 	 */
37 	devp = find_node_by_devtype(NULL, "soc");
38 	if (devp) {
39 		void *serial = NULL;
40 
41 		setprop(devp, "bus-frequency", &bd.bi_busfreq,
42 		        sizeof(bd.bi_busfreq));
43 
44 		while ((serial = find_node_by_devtype(serial, "serial"))) {
45 			if (get_parent(serial) != devp)
46 				continue;
47 
48 			setprop(serial, "clock-frequency", &bd.bi_busfreq,
49 			        sizeof(bd.bi_busfreq));
50 		}
51 	}
52 
53 	devp = find_node_by_compatible(NULL, "fsl,cpm2-brg");
54 	if (devp)
55 		setprop(devp, "clock-frequency", &bd.bi_brgfreq,
56 		        sizeof(bd.bi_brgfreq));
57 }
58 
59 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
60                    unsigned long r6, unsigned long r7)
61 {
62 	CUBOOT_INIT();
63 	fdt_init(_dtb_start);
64 	serial_console_init();
65 	platform_ops.fixups = platform_fixups;
66 }
67