arch/powerpc/cpu/mpc86xx/fdt.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright 2008, 2011 Freescale Semiconductor, Inc.
   4  */
   5
   6 #include <common.h>
   7 #include <linux/libfdt.h>
   8 #include <fdt_support.h>
   9 #include <asm/mp.h>
  10
  11 DECLARE_GLOBAL_DATA_PTR;
  12
  13 extern void ft_fixup_num_cores(void *blob);
  14 extern void ft_srio_setup(void *blob);
  15
  16 void ft_cpu_setup(void *blob, struct bd_info *bd)
  17 {
  18 #ifdef CONFIG_MP
  19         int off;
  20         u32 bootpg = determine_mp_bootpg(NULL);
  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         fdt_fixup_memory(blob, (u64)gd->ram_base, (u64)gd->ram_size);
  33
  34 #ifdef CONFIG_SYS_NS16550
  35         do_fixup_by_compat_u32(blob, "ns16550",
  36                                "clock-frequency", CONFIG_SYS_NS16550_CLK, 1);
  37 #endif
  38
  39 #ifdef CONFIG_MP
  40         /* Reserve the boot page so OSes dont use it */
  41         off = fdt_add_mem_rsv(blob, bootpg, (u64)4096);
  42         if (off < 0)
  43                 printf("%s: %s\n", __FUNCTION__, fdt_strerror(off));
  44
  45         ft_fixup_num_cores(blob);
  46 #endif
  47
  48 #ifdef CONFIG_SYS_SRIO
  49         ft_srio_setup(blob);
  50 #endif
  51 }