arch/powerpc/cpu/mpc86xx/fdt.c

   1 /*
   2  * Copyright 2008,2010 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 <asm/mp.h>
  13
  14 DECLARE_GLOBAL_DATA_PTR;
  15
  16 extern void ft_fixup_num_cores(void *blob);
  17
  18 void ft_cpu_setup(void *blob, bd_t *bd)
  19 {
  20 #ifdef CONFIG_MP
  21         int off;
  22         u32 bootpg = determine_mp_bootpg();
  23 #endif
  24
  25         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  26                              "timebase-frequency", bd->bi_busfreq / 4, 1);
  27         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  28                              "bus-frequency", bd->bi_busfreq, 1);
  29         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  30                              "clock-frequency", bd->bi_intfreq, 1);
  31         do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
  32                              "bus-frequency", bd->bi_busfreq, 1);
  33
  34 #if defined(CONFIG_MPC8641)
  35         do_fixup_by_compat_u32(blob, "fsl,mpc8641-localbus",
  36                                "bus-frequency", gd->lbc_clk, 1);
  37 #endif
  38         do_fixup_by_compat_u32(blob, "fsl,elbc",
  39                                "bus-frequency", gd->lbc_clk, 1);
  40
  41         fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
  42
  43 #if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) \
  44     || defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
  45         fdt_fixup_ethernet(blob);
  46 #endif
  47
  48 #ifdef CONFIG_SYS_NS16550
  49         do_fixup_by_compat_u32(blob, "ns16550",
  50                                "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
  51 #endif
  52
  53 #ifdef CONFIG_MP
  54         /* Reserve the boot page so OSes dont use it */
  55         off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
  56         if (off < 0)
  57                 printf("%s: %s\n", __FUNCTION__, fdt_strerror(off));
  58
  59         ft_fixup_num_cores(blob);
  60 #endif
  61 }