linux/arch/powerpc/boot/cuboot-85xx-cpm2.c
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   1/*
   2 * Old U-boot compatibility for 85xx
   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_85xx
  18#define TARGET_CPM2
  19#include "ppcboot.h"
  20
  21static bd_t bd;
  22
  23static void platform_fixups(void)
  24{
  25        void *devp;
  26
  27        dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
  28        dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
  29        dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
  30        dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
  31        dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, bd.bi_busfreq);
  32
  33        /* Unfortunately, the specific model number is encoded in the
  34         * soc node name in existing dts files -- once that is fixed,
  35         * this can do a simple path lookup.
  36         */
  37        devp = find_node_by_devtype(NULL, "soc");
  38        if (devp) {
  39                void *serial = NULL;
  40
  41                setprop(devp, "bus-frequency", &bd.bi_busfreq,
  42                        sizeof(bd.bi_busfreq));
  43
  44                while ((serial = find_node_by_devtype(serial, "serial"))) {
  45                        if (get_parent(serial) != devp)
  46                                continue;
  47
  48                        setprop(serial, "clock-frequency", &bd.bi_busfreq,
  49                                sizeof(bd.bi_busfreq));
  50                }
  51        }
  52
  53        devp = find_node_by_compatible(NULL, "fsl,cpm2-brg");
  54        if (devp)
  55                setprop(devp, "clock-frequency", &bd.bi_brgfreq,
  56                        sizeof(bd.bi_brgfreq));
  57}
  58
  59void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  60                   unsigned long r6, unsigned long r7)
  61{
  62        CUBOOT_INIT();
  63        fdt_init(_dtb_start);
  64        serial_console_init();
  65        platform_ops.fixups = platform_fixups;
  66}
  67
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