LXR linux/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
  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(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
  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(_dtb_start);
  52        serial_console_init();
  53        platform_ops.fixups = mvme7100_fixups;
  54}
  55