arch/powerpc/boot/mvme7100.c

   1 /*
   2  * Motload compatibility for the Emerson/Artesyn MVME7100
   3  *
   4  * Copyright 2016 Elettra-Sincrotrone Trieste S.C.p.A.
   5  *
   6  * Author: Alessio Igor Bogani <alessio.bogani@elettra.eu>
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version.
  12  *
  13  */
  14
  15 #include "ops.h"
  16 #include "stdio.h"
  17 #include "cuboot.h"
  18
  19 #define TARGET_86xx
  20 #define TARGET_HAS_ETH1
  21 #define TARGET_HAS_ETH2
  22 #define TARGET_HAS_ETH3
  23 #include "ppcboot.h"
  24
  25 static bd_t bd;
  26
  27 BSS_STACK(16384);
  28
  29 static void mvme7100_fixups(void)
  30 {
  31         void *devp;
  32         unsigned long busfreq = bd.bi_busfreq * 1000000;
  33
  34         dt_fixup_cpu_clocks(bd.bi_intfreq * 1000000, busfreq / 4, busfreq);
  35
  36         devp = finddevice("/soc@f1000000");
  37         if (devp)
  38                 setprop(devp, "bus-frequency", &busfreq, sizeof(busfreq));
  39
  40         devp = finddevice("/soc/serial@4500");
  41         if (devp)
  42                 setprop(devp, "clock-frequency", &busfreq, sizeof(busfreq));
  43
  44         dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
  45
  46         dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
  47         dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
  48         dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
  49         dt_fixup_mac_address_by_alias("ethernet3", bd.bi_enet3addr);
  50 }
  51
  52 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  53                    unsigned long r6, unsigned long r7)
  54 {
  55         CUBOOT_INIT();
  56         fdt_init(_dtb_start);
  57         serial_console_init();
  58         platform_ops.fixups = mvme7100_fixups;
  59 }