1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Old U-boot compatibility for 85xx |
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_85xx |
15 | #define TARGET_CPM2 |
16 | #include "ppcboot.h" |
17 | |
18 | static bd_t bd; |
19 | |
20 | static void platform_fixups(void) |
21 | { |
22 | void *devp; |
23 | |
24 | dt_fixup_memory(start: bd.bi_memstart, size: bd.bi_memsize); |
25 | dt_fixup_mac_address_by_alias(alias: "ethernet0" , addr: bd.bi_enetaddr); |
26 | dt_fixup_mac_address_by_alias(alias: "ethernet1" , addr: bd.bi_enet1addr); |
27 | dt_fixup_mac_address_by_alias(alias: "ethernet2" , addr: bd.bi_enet2addr); |
28 | dt_fixup_cpu_clocks(cpufreq: bd.bi_intfreq, tbfreq: bd.bi_busfreq / 8, busfreq: bd.bi_busfreq); |
29 | |
30 | /* Unfortunately, the specific model number is encoded in the |
31 | * soc node name in existing dts files -- once that is fixed, |
32 | * this can do a simple path lookup. |
33 | */ |
34 | devp = find_node_by_devtype(prev: NULL, type: "soc" ); |
35 | if (devp) { |
36 | void *serial = NULL; |
37 | |
38 | setprop(devp, name: "bus-frequency" , buf: &bd.bi_busfreq, |
39 | buflen: sizeof(bd.bi_busfreq)); |
40 | |
41 | while ((serial = find_node_by_devtype(prev: serial, type: "serial" ))) { |
42 | if (get_parent(devp: serial) != devp) |
43 | continue; |
44 | |
45 | setprop(devp: serial, name: "clock-frequency" , buf: &bd.bi_busfreq, |
46 | buflen: sizeof(bd.bi_busfreq)); |
47 | } |
48 | } |
49 | |
50 | devp = find_node_by_compatible(prev: NULL, compat: "fsl,cpm2-brg" ); |
51 | if (devp) |
52 | setprop(devp, name: "clock-frequency" , buf: &bd.bi_brgfreq, |
53 | buflen: sizeof(bd.bi_brgfreq)); |
54 | } |
55 | |
56 | void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, |
57 | unsigned long r6, unsigned long r7) |
58 | { |
59 | CUBOOT_INIT(); |
60 | fdt_init(blob: _dtb_start); |
61 | serial_console_init(); |
62 | platform_ops.fixups = platform_fixups; |
63 | } |
64 | |