cuboot-83xx.c

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/*
 * Old U-boot compatibility for 83xx
 *
 * Author: Scott Wood <[email protected]>
 *
 * Copyright (c) 2007 Freescale Semiconductor, Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 */

#include "ops.h"
#include "stdio.h"
#include "cuboot.h"

#define TARGET_83xx
#include "ppcboot.h"

static bd_t bd;

static void platform_fixups(void)
{
    void *soc;

    dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
    dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
    dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
    dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);

    /* Unfortunately, the specific model number is encoded in the
     * soc node name in existing dts files -- once that is fixed,
     * this can do a simple path lookup.
     */
    soc = find_node_by_devtype(NULL, "soc");
    if (soc) {
        void *serial = NULL;

        setprop(soc, "bus-frequency", &bd.bi_busfreq,
                sizeof(bd.bi_busfreq));

        while ((serial = find_node_by_devtype(serial, "serial"))) {
            if (get_parent(serial) != soc)
                continue;

            setprop(serial, "clock-frequency", &bd.bi_busfreq,
                    sizeof(bd.bi_busfreq));
        }
    }
}

void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
                   unsigned long r6, unsigned long r7)
{
    CUBOOT_INIT();
    fdt_init(_dtb_start);
    serial_console_init();
    platform_ops.fixups = platform_fixups;
}