target/linux/ramips/patches-3.18/0103-MIPS-OWRTDTB.patch

   1 From c174d2250e402399ad7dbdd57d51883d8804bba0 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Mon, 15 Jul 2013 00:40:37 +0200
   4 Subject: [PATCH 31/33] owrt: MIPS: add OWRTDTB secion
   5
   6 Signed-off-by: John Crispin <blogic@openwrt.org>
   7 ---
   8  arch/mips/kernel/head.S   |    3 +++
   9  arch/mips/ralink/Makefile |    2 +-
  10  arch/mips/ralink/of.c     |    4 +++-
  11  3 files changed, 7 insertions(+), 2 deletions(-)
  12
  13 --- a/arch/mips/kernel/head.S
  14 +++ b/arch/mips/kernel/head.S
  15 @@ -86,6 +86,9 @@ EXPORT(__image_cmdline)
  16         .fill   0x400
  17  #endif /* CONFIG_IMAGE_CMDLINE_HACK */
  18
  19 +       .ascii  "OWRTDTB:"
  20 +       EXPORT(__image_dtb)
  21 +       .fill   0x4000
  22         __REF
  23
  24  NESTED(kernel_entry, 16, sp)                   # kernel entry point
  25 --- a/arch/mips/ralink/of.c
  26 +++ b/arch/mips/ralink/of.c
  27 @@ -66,6 +66,8 @@ static int __init early_init_dt_find_mem
  28         return 0;
  29  }
  30
  31 +extern struct boot_param_header __image_dtb;
  32 +
  33  void __init plat_mem_setup(void)
  34  {
  35         set_io_port_base(KSEG1);
  36 @@ -74,7 +76,7 @@ void __init plat_mem_setup(void)
  37          * Load the builtin devicetree. This causes the chosen node to be
  38          * parsed resulting in our memory appearing
  39          */
  40 -       __dt_setup_arch(__dtb_start);
  41 +       __dt_setup_arch(&__image_dtb);
  42
  43         strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
  44