LXR linux/arch/powerpc/boot/cuboot-85xx-cpm2.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Old U-boot compatibility for 85xx
   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_85xx
  15#define TARGET_CPM2
  16#include "ppcboot.h"
  17
  18static bd_t bd;
  19
  20static void platform_fixups(void)
  21{
  22        void *devp;
  23
  24        dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
  25        dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
  26        dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
  27        dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
  28        dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, bd.bi_busfreq);
  29
  30        /* Unfortunately, the specific model number is encoded in the
  31         * soc node name in existing dts files -- once that is fixed,
  32         * this can do a simple path lookup.
  33         */
  34        devp = find_node_by_devtype(NULL, "soc");
  35        if (devp) {
  36                void *serial = NULL;
  37
  38                setprop(devp, "bus-frequency", &bd.bi_busfreq,
  39                        sizeof(bd.bi_busfreq));
  40
  41                while ((serial = find_node_by_devtype(serial, "serial"))) {
  42                        if (get_parent(serial) != devp)
  43                                continue;
  44
  45                        setprop(serial, "clock-frequency", &bd.bi_busfreq,
  46                                sizeof(bd.bi_busfreq));
  47                }
  48        }
  49
  50        devp = find_node_by_compatible(NULL, "fsl,cpm2-brg");
  51        if (devp)
  52                setprop(devp, "clock-frequency", &bd.bi_brgfreq,
  53                        sizeof(bd.bi_brgfreq));
  54}
  55
  56void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  57                   unsigned long r6, unsigned long r7)
  58{
  59        CUBOOT_INIT();
  60        fdt_init(_dtb_start);
  61        serial_console_init();
  62        platform_ops.fixups = platform_fixups;
  63}
  64