arch/powerpc/cpu/mpc86xx/fdt.c

   1 /*
   2  * Copyright 2008, 2011 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 extern void ft_srio_setup(void *blob);
  18
  19 void ft_cpu_setup(void *blob, bd_t *bd)
  20 {
  21 #ifdef CONFIG_MP
  22         int off;
  23         u32 bootpg = determine_mp_bootpg(NULL);
  24 #endif
  25
  26         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  27                              "timebase-frequency", bd->bi_busfreq / 4, 1);
  28         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  29                              "bus-frequency", bd->bi_busfreq, 1);
  30         do_fixup_by_prop_u32(blob, "device_type", "cpu", 4,
  31                              "clock-frequency", bd->bi_intfreq, 1);
  32         do_fixup_by_prop_u32(blob, "device_type", "soc", 4,
  33                              "bus-frequency", bd->bi_busfreq, 1);
  34
  35 #if defined(CONFIG_MPC8641)
  36         do_fixup_by_compat_u32(blob, "fsl,mpc8641-localbus",
  37                                "bus-frequency", gd->lbc_clk, 1);
  38 #endif
  39         do_fixup_by_compat_u32(blob, "fsl,elbc",
  40                                "bus-frequency", gd->lbc_clk, 1);
  41
  42         fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
  43
  44 #if defined(CONFIG_HAS_ETH0) || defined(CONFIG_HAS_ETH1) \
  45     || defined(CONFIG_HAS_ETH2) || defined(CONFIG_HAS_ETH3)
  46         fdt_fixup_ethernet(blob);
  47 #endif
  48
  49 #ifdef CONFIG_SYS_NS16550
  50         do_fixup_by_compat_u32(blob, "ns16550",
  51                                "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
  52 #endif
  53
  54 #ifdef CONFIG_MP
  55         /* Reserve the boot page so OSes dont use it */
  56         off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
  57         if (off < 0)
  58                 printf("%s: %s\n", __FUNCTION__, fdt_strerror(off));
  59
  60         ft_fixup_num_cores(blob);
  61 #endif
  62
  63 #ifdef CONFIG_SYS_SRIO
  64         ft_srio_setup(blob);
  65 #endif
  66 }