1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Old U-boot compatibility for 83xx
4 *
5 * Author: Scott Wood <scottwood@freescale.com>
6 *
7 * Copyright (c) 2007 Freescale Semiconductor, Inc.
8 */
9
10 #include "ops.h"
11 #include "stdio.h"
12 #include "cuboot.h"
13
14 #define TARGET_83xx
15 #include "ppcboot.h"
16
17 static bd_t bd;
18
19 static void platform_fixups(void)
20 {
21 void *soc;
22
23 dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
24 dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
25 dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
26 dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
27
28 /* Unfortunately, the specific model number is encoded in the
29 * soc node name in existing dts files -- once that is fixed,
30 * this can do a simple path lookup.
31 */
32 soc = find_node_by_devtype(NULL, "soc");
33 if (soc) {
34 void *serial = NULL;
35
36 setprop(soc, "bus-frequency", &bd.bi_busfreq,
37 sizeof(bd.bi_busfreq));
38
39 while ((serial = find_node_by_devtype(serial, "serial"))) {
40 if (get_parent(serial) != soc)
41 continue;
42
43 setprop(serial, "clock-frequency", &bd.bi_busfreq,
44 sizeof(bd.bi_busfreq));
45 }
46 }
47 }
48
49 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
50 unsigned long r6, unsigned long r7)
51 {
52 CUBOOT_INIT();
53 fdt_init(_dtb_start);
54 serial_console_init();
55 platform_ops.fixups = platform_fixups;
56 }
57
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