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
  20 static bd_t bd;
  21
  22 BSS_STACK(16384);
  23
  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
  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 }