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

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Old U-boot compatibility for 83xx
   4 *
   5 * Author: Scott Wood <scottwood@freescale.com>
   6 *
   7 * Copyright (c) 2007 Freescale Semiconductor, Inc.
   8 */
   9
  10#include "ops.h"
  11#include "stdio.h"
  12#include "cuboot.h"
  13
  14#define TARGET_83xx
  15#include "ppcboot.h"
  16
  17static bd_t bd;
  18
  19static void platform_fixups(void)
  20{
  21        void *soc;
  22
  23        dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
  24        dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
  25        dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
  26        dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
  27
  28        /* Unfortunately, the specific model number is encoded in the
  29         * soc node name in existing dts files -- once that is fixed,
  30         * this can do a simple path lookup.
  31         */
  32        soc = find_node_by_devtype(NULL, "soc");
  33        if (soc) {
  34                void *serial = NULL;
  35
  36                setprop(soc, "bus-frequency", &bd.bi_busfreq,
  37                        sizeof(bd.bi_busfreq));
  38
  39                while ((serial = find_node_by_devtype(serial, "serial"))) {
  40                        if (get_parent(serial) != soc)
  41                                continue;
  42
  43                        setprop(serial, "clock-frequency", &bd.bi_busfreq,
  44                                sizeof(bd.bi_busfreq));
  45                }
  46        }
  47}
  48
  49void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  50                   unsigned long r6, unsigned long r7)
  51{
  52        CUBOOT_INIT();
  53        fdt_init(_dtb_start);
  54        serial_console_init();
  55        platform_ops.fixups = platform_fixups;
  56}
  57