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

   1 /*
   2  * Old U-boot compatibility for 85xx
   3  *
   4  * Author: Scott Wood <scottwood@freescale.com>
   5  *
   6  * Copyright (c) 2007 Freescale Semiconductor, Inc.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License version 2 as published
  10  * by the Free Software Foundation.
  11  */
  12
  13 #include "ops.h"
  14 #include "stdio.h"
  15 #include "cuboot.h"
  16
  17 #define TARGET_85xx
  18 #define TARGET_CPM2
  19 #include "ppcboot.h"
  20
  21 static bd_t bd;
  22
  23 static void platform_fixups(void)
  24 {
  25         void *devp;
  26
  27         dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
  28         dt_fixup_mac_address_by_alias("ethernet0", bd.bi_enetaddr);
  29         dt_fixup_mac_address_by_alias("ethernet1", bd.bi_enet1addr);
  30         dt_fixup_mac_address_by_alias("ethernet2", bd.bi_enet2addr);
  31         dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 8, bd.bi_busfreq);
  32
  33         /* Unfortunately, the specific model number is encoded in the
  34          * soc node name in existing dts files -- once that is fixed,
  35          * this can do a simple path lookup.
  36          */
  37         devp = find_node_by_devtype(NULL, "soc");
  38         if (devp) {
  39                 void *serial = NULL;
  40
  41                 setprop(devp, "bus-frequency", &bd.bi_busfreq,
  42                         sizeof(bd.bi_busfreq));
  43
  44                 while ((serial = find_node_by_devtype(serial, "serial"))) {
  45                         if (get_parent(serial) != devp)
  46                                 continue;
  47
  48                         setprop(serial, "clock-frequency", &bd.bi_busfreq,
  49                                 sizeof(bd.bi_busfreq));
  50                 }
  51         }
  52
  53         devp = find_node_by_compatible(NULL, "fsl,cpm2-brg");
  54         if (devp)
  55                 setprop(devp, "clock-frequency", &bd.bi_brgfreq,
  56                         sizeof(bd.bi_brgfreq));
  57 }
  58
  59 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  60                    unsigned long r6, unsigned long r7)
  61 {
  62         CUBOOT_INIT();
  63         fdt_init(_dtb_start);
  64         serial_console_init();
  65         platform_ops.fixups = platform_fixups;
  66 }