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

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Old U-boot compatibility for 824x
   4  *
   5  * Copyright (c) 2007 Freescale Semiconductor, Inc.
   6  */
   7
   8 #include "ops.h"
   9 #include "stdio.h"
  10 #include "cuboot.h"
  11
  12 #define TARGET_824x
  13 #include "ppcboot.h"
  14
  15 static bd_t bd;
  16
  17
  18 static void platform_fixups(void)
  19 {
  20         void *soc;
  21
  22         dt_fixup_memory(bd.bi_memstart, bd.bi_memsize);
  23         dt_fixup_mac_addresses(bd.bi_enetaddr);
  24         dt_fixup_cpu_clocks(bd.bi_intfreq, bd.bi_busfreq / 4, bd.bi_busfreq);
  25
  26         soc = find_node_by_devtype(NULL, "soc");
  27         if (soc) {
  28                 void *serial = NULL;
  29
  30                 setprop(soc, "bus-frequency", &bd.bi_busfreq,
  31                         sizeof(bd.bi_busfreq));
  32
  33                 while ((serial = find_node_by_devtype(serial, "serial"))) {
  34                         if (get_parent(serial) != soc)
  35                                 continue;
  36
  37                         setprop(serial, "clock-frequency", &bd.bi_busfreq,
  38                                 sizeof(bd.bi_busfreq));
  39                 }
  40         }
  41 }
  42
  43 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  44                    unsigned long r6, unsigned long r7)
  45 {
  46         CUBOOT_INIT();
  47         fdt_init(_dtb_start);
  48         serial_console_init();
  49         platform_ops.fixups = platform_fixups;
  50 }