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
  18 static bd_t bd;
  19
  20 static 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
  56 void 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 }