// SPDX-License-Identifier: GPL-2.0-only
/*
 * Old U-boot compatibility for MPC5200
 *
 * Author: Grant Likely <grant.likely@secretlab.ca>
 *
 * Copyright (c) 2007 Secret Lab Technologies Ltd.
 * Copyright (c) 2007 Freescale Semiconductor, Inc.
 */

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

#define TARGET_PPC_MPC52xx
#include "ppcboot.h"

static bd_t bd;

static void platform_fixups(void)
{
        void *soc, *reg;
        int div;
        u32 sysfreq;


        dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
        dt_fixup_mac_addresses(bd.bi_enetaddr);
        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)
                soc = find_node_by_compatible(NULL, "fsl,mpc5200-immr");
        if (!soc)
                soc = find_node_by_compatible(NULL, "fsl,mpc5200b-immr");
        if (soc) {
                setprop(soc, "bus-frequency", &bd.bi_ipbfreq,
                        sizeof(bd.bi_ipbfreq));

                if (!dt_xlate_reg(soc, 0, (void*)&reg, NULL))
                        return;
                div = in_8(reg + 0x204) & 0x0020 ? 8 : 4;
                sysfreq = bd.bi_busfreq * div;
                setprop(soc, "system-frequency", &sysfreq, sizeof(sysfreq));
        }
}

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;
}