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
20static bd_t bd;
21
22BSS_STACK(16384);
23
24static void mvme7100_fixups(void)
25{
26 void *devp;
27 unsigned long busfreq = bd.bi_busfreq * 1000000;
28
29 dt_fixup_cpu_clocks(cpufreq: bd.bi_intfreq * 1000000, tbfreq: busfreq / 4, busfreq);
30
31 devp = finddevice(name: "/soc@f1000000");
32 if (devp)
33 setprop(devp, name: "bus-frequency", buf: &busfreq, buflen: sizeof(busfreq));
34
35 devp = finddevice(name: "/soc/serial@4500");
36 if (devp)
37 setprop(devp, name: "clock-frequency", buf: &busfreq, buflen: sizeof(busfreq));
38
39 dt_fixup_memory(start: bd.bi_memstart, size: bd.bi_memsize);
40
41 dt_fixup_mac_address_by_alias(alias: "ethernet0", addr: bd.bi_enetaddr);
42 dt_fixup_mac_address_by_alias(alias: "ethernet1", addr: bd.bi_enet1addr);
43 dt_fixup_mac_address_by_alias(alias: "ethernet2", addr: bd.bi_enet2addr);
44 dt_fixup_mac_address_by_alias(alias: "ethernet3", addr: bd.bi_enet3addr);
45}
46
47void 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(blob: _dtb_start);
52 serial_console_init();
53 platform_ops.fixups = mvme7100_fixups;
54}
55

source code of linux/arch/powerpc/boot/mvme7100.c