cpu/mpc86xx/fdt.c

   1 /*
   2  * Copyright 2008 Freescale Semiconductor, Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * Version 2 as published by the Free Software Foundation.
   7  */
   8
   9 #include <common.h>
  10 #include <libfdt.h>
  11 #include <fdt_support.h>
  12 #include "mp.h"
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 void ft_cpu_setup(void *blob, bd_t *bd)
  17 {
  18 #if (CONFIG_NUM_CPUS > 1)
  19         int off;
  20         u32 bootpg;
  21 #endif
  22
  23         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  24                              "timebase-frequency", bd->bi_busfreq / 4, 1);
  25         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  26                              "bus-frequency", bd->bi_busfreq, 1);
  27         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  28                              "clock-frequency", bd->bi_intfreq, 1);
  29         do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
  30                              "bus-frequency", bd->bi_busfreq, 1);
  31
  32 #if defined(CONFIG_MPC8641)
  33         do_fixup_by_compat_u32(blob, "fsl,mpc8641-localbus",
  34                                "bus-frequency", gd->lbc_clk, 1);
  35 #endif
  36         do_fixup_by_compat_u32(blob, "fsl,elbc",
  37                                "bus-frequency", gd->lbc_clk, 1);
  38
  39         fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
  40
  41 #if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) \
  42     || defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
  43         fdt_fixup_ethernet(blob);
  44 #endif
  45
  46 #ifdef CONFIG_SYS_NS16550
  47         do_fixup_by_compat_u32(blob, "ns16550",
  48                                "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
  49 #endif
  50
  51 #if (CONFIG_NUM_CPUS > 1)
  52         /* if we have 4G or more of memory, put the boot page at 4Gb-1M */
  53         if (gd->ram_size > 0xfffff000)
  54                 bootpg = 0xfff00000;
  55         else
  56                 bootpg = gd->ram_size - (1024 * 1024);
  57
  58         /* Reserve the boot page so OSes dont use it */
  59         off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
  60         if (off < 0)
  61                 printf("%s: %s\n", __FUNCTION__, fdt_strerror(off));
  62 #endif
  63 }