LXR linux/arch/powerpc/boot/cuboot-83xx.c

   1/*
   2 * Old U-boot compatibility for 83xx
   3 *
   4 * Author: Scott Wood <scottwood@freescale.com>
   5 *
   6 * Copyright (c) 2007 Freescale Semiconductor, Inc.
   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 version 2 as published
  10 * by the Free Software Foundation.
  11 */
  12
  13#include "ops.h"
  14#include "stdio.h"
  15#include "cuboot.h"
  16
  17#define TARGET_83xx
  18#include "ppcboot.h"
  19
  20static bd_t bd;
  21
  22static void platform_fixups(void)
  23{
  24        void *soc;
  25
  26        dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
  27        dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
  28        dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
  29        dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
  30
  31        /* Unfortunately, the specific model number is encoded in the
  32         * soc node name in existing dts files -- once that is fixed,
  33         * this can do a simple path lookup.
  34         */
  35        soc = find_node_by_devtype(NULL, "soc");
  36        if (soc) {
  37                void *serial = NULL;
  38
  39                setprop(soc, "bus-frequency", &bd.bi_busfreq,
  40                        sizeof(bd.bi_busfreq));
  41
  42                while ((serial = find_node_by_devtype(serial, "serial"))) {
  43                        if (get_parent(serial) != soc)
  44                                continue;
  45
  46                        setprop(serial, "clock-frequency", &bd.bi_busfreq,
  47                                sizeof(bd.bi_busfreq));
  48                }
  49        }
  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 = platform_fixups;
  59}
  60