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  
mvme7100_fixups(void)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  
platform_init(unsigned long r3,unsigned long r4,unsigned long r5,unsigned long r6,unsigned long r7)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  }
55