treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
[muen/linux.git] / arch / powerpc / boot / mvme7100.c
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Motload compatibility for the Emerson/Artesyn MVME7100
4  *
5  * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A.
6  *
7  * Author: Alessio Igor Bogani <alessio.bogani@elettra.eu>
8  */
9
10 #include "ops.h"
11 #include "stdio.h"
12 #include "cuboot.h"
13
14 #define TARGET_86xx
15 #define TARGET_HAS_ETH1
16 #define TARGET_HAS_ETH2
17 #define TARGET_HAS_ETH3
18 #include "ppcboot.h"
19
20 static bd_t bd;
21
22 BSS_STACK(16384);
23
24 static void mvme7100_fixups(void)
25 {
26         void *devp;
27         unsigned long busfreq = bd.bi_busfreq * 1000000;
28
29         dt_fixup_cpu_clocks(bd.bi_intfreq * 1000000, busfreq / 4, busfreq);
30
31         devp = finddevice("/soc@f1000000");
32         if (devp)
33                 setprop(devp, "bus-frequency", &busfreq, sizeof(busfreq));
34
35         devp = finddevice("/soc/serial@4500");
36         if (devp)
37                 setprop(devp, "clock-frequency", &busfreq, sizeof(busfreq));
38
39         dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
40
41         dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
42         dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
43         dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
44         dt_fixup_mac_address_by_alias("ethernet3", bd.bi_enet3addr);
45 }
46
47 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
48                    unsigned long r6, unsigned long r7)
49 {
50         CUBOOT_INIT();
51         fdt_init(_dtb_start);
52         serial_console_init();
53         platform_ops.fixups = mvme7100_fixups;
54 }