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(start: bd.bi_memstart, size: bd.bi_memsize); |
24 | dt_fixup_mac_address_by_alias(alias: "ethernet0" , addr: bd.bi_enetaddr); |
25 | dt_fixup_mac_address_by_alias(alias: "ethernet1" , addr: bd.bi_enet1addr); |
26 | dt_fixup_cpu_clocks(cpufreq: bd.bi_intfreq, tbfreq: bd.bi_busfreq / 4, busfreq: 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(prev: NULL, type: "soc" ); |
33 | if (soc) { |
34 | void *serial = NULL; |
35 | |
36 | setprop(devp: soc, name: "bus-frequency" , buf: &bd.bi_busfreq, |
37 | buflen: sizeof(bd.bi_busfreq)); |
38 | |
39 | while ((serial = find_node_by_devtype(prev: serial, type: "serial" ))) { |
40 | if (get_parent(devp: serial) != soc) |
41 | continue; |
42 | |
43 | setprop(devp: serial, name: "clock-frequency" , buf: &bd.bi_busfreq, |
44 | buflen: 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(blob: _dtb_start); |
54 | serial_console_init(); |
55 | platform_ops.fixups = platform_fixups; |
56 | } |
57 | |