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/arch/powerpc/boot/cuboot-85xx-cpm2.c

https://github.com/aicjofs/android_kernel_lge_v500_20d
C | 66 lines | 40 code | 11 blank | 15 comment | 5 complexity | c3e97299641cc5c880ae2591516bc05e MD5 | raw file
 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
21static bd_t bd;
22
23static 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
59void 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}