LXR linux/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
  25static bd_t bd;
  26
  27BSS_STACK(16384);
  28
  29static 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
  52void 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}
  60