arch/powerpc/boot/cuboot-824x.c

   1 /*
   2  * Old U-boot compatibility for 824x
   3  *
   4  * Copyright (c) 2007 Freescale Semiconductor, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 as published
   8  * by the Free Software Foundation.
   9  */
  10
  11 #include "ops.h"
  12 #include "stdio.h"
  13 #include "cuboot.h"
  14
  15 #define TARGET_824x
  16 #include "ppcboot.h"
  17
  18 static bd_t bd;
  19
  20
  21 static void platform_fixups(void)
  22 {
  23         void *soc;
  24
  25         dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
  26         dt_fixup_mac_addresses(bd.bi_enetaddr);
  27         dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
  28
  29         soc = find_node_by_devtype(NULL, "soc");
  30         if (soc) {
  31                 void *serial = NULL;
  32
  33                 setprop(soc, "bus-frequency", &bd.bi_busfreq,
  34                         sizeof(bd.bi_busfreq));
  35
  36                 while ((serial = find_node_by_devtype(serial, "serial"))) {
  37                         if (get_parent(serial) != soc)
  38                                 continue;
  39
  40                         setprop(serial, "clock-frequency", &bd.bi_busfreq,
  41                                 sizeof(bd.bi_busfreq));
  42                 }
  43         }
  44 }
  45
  46 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  47                    unsigned long r6, unsigned long r7)
  48 {
  49         CUBOOT_INIT();
  50         fdt_init(_dtb_start);
  51         serial_console_init();
  52         platform_ops.fixups = platform_fixups;
  53 }