target/linux/mpc85xx/patches-3.19/142-add-mpic-timer-clock-frequency.patch

   1 From 1c20a5420c2602e2438209f34a633eae377eda5e Mon Sep 17 00:00:00 2001
   2 From: Heiner Kallweit <hkallweit1@gmail.com>
   3 Date: Thu, 19 Feb 2015 23:43:32 +0100
   4 Subject: [PATCH] mpc85xx: add mpic timer clock frequency
   5
   6 MPIC timers are enabled in the config, however a devicetree clock setting
   7 is missing causing the following error:
   8 /soc@ffe00000/timer@41100: cannot get timer frequency.
   9 /soc@ffe00000/timer@42100: cannot get timer frequency.
  10
  11 This patch adds the missing clock and avoids the error.
  12 It's a functional copy of this code
  13 do_fixup_by_compat_u32(blob, "fsl,mpic",
  14         "clock-frequency", get_bus_freq(0), 1);
  15 in arch/powerpc/cpu/mpc85xx/fdt.c in the u-boot code.
  16
  17 Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
  18 ---
  19  arch/powerpc/boot/cuboot-tl-wdr4900-v1.c | 6 +++++-
  20  1 file changed, 5 insertions(+), 1 deletion(-)
  21
  22 diff --git a/arch/powerpc/boot/cuboot-tl-wdr4900-v1.c b/arch/powerpc/boot/cuboot-tl-wdr4900-v1.c
  23 index 095e777..17459ef 100644
  24 --- a/arch/powerpc/boot/cuboot-tl-wdr4900-v1.c
  25 +++ b/arch/powerpc/boot/cuboot-tl-wdr4900-v1.c
  26 @@ -119,7 +119,7 @@ static void process_boot_dtb(void *boot_dtb)
  27
  28  static void platform_fixups(void)
  29  {
  30 -       void *soc;
  31 +       void *soc, *mpic;
  32
  33         dt_fixup_memory(0, mem_size);
  34
  35 @@ -144,6 +144,10 @@ static void platform_fixups(void)
  36                                 sizeof(bus_freq));
  37                 }
  38         }
  39 +
  40 +       mpic = find_node_by_compatible(NULL, "fsl,mpic");
  41 +       if (mpic)
  42 +               setprop(mpic, "clock-frequency", &bus_freq, sizeof(bus_freq));
  43  }
  44
  45  void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  46 --
  47 2.3.0
  48