target/linux/layerscape/patches-4.4/7172-staging-fsl-mc-set-cacheable-flag-for-added-devices-.patch

   1 From f7011c18a26d40a07b837a79d0efdad795ad7250 Mon Sep 17 00:00:00 2001
   2 From: Itai Katz <itai.katz@nxp.com>
   3 Date: Mon, 11 Apr 2016 11:55:48 -0500
   4 Subject: [PATCH 172/226] staging: fsl-mc: set cacheable flag for added
   5  devices if applicable
   6
   7 Some DPAA2 devices have mmio regions that should be mapped as
   8 cacheable by drivers.  Set IORESOURCE_CACHEABLE in the region's
   9 flags if applicable.
  10
  11 Signed-off-by: Itai Katz <itai.katz@nxp.com>
  12 [Stuart: update subject and commit message]
  13 Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
  14 Acked-by: German Rivera <german.rivera@nxp.com>
  15 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  16 ---
  17  drivers/staging/fsl-mc/bus/mc-bus.c |    2 ++
  18  1 file changed, 2 insertions(+)
  19
  20 --- a/drivers/staging/fsl-mc/bus/mc-bus.c
  21 +++ b/drivers/staging/fsl-mc/bus/mc-bus.c
  22 @@ -354,6 +354,8 @@ static int fsl_mc_device_get_mmio_region
  23                 regions[i].end = regions[i].start + region_desc.size - 1;
  24                 regions[i].name = "fsl-mc object MMIO region";
  25                 regions[i].flags = IORESOURCE_IO;
  26 +               if (region_desc.flags & DPRC_REGION_CACHEABLE)
  27 +                       regions[i].flags |= IORESOURCE_CACHEABLE;
  28         }
  29
  30         mc_dev->regions = regions;