diff options
Diffstat (limited to 'target/linux/layerscape/patches-4.4/7175-staging-fsl-mc-add-quirk-handling-for-dpseci-objects.patch')
| -rw-r--r-- | target/linux/layerscape/patches-4.4/7175-staging-fsl-mc-add-quirk-handling-for-dpseci-objects.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-4.4/7175-staging-fsl-mc-add-quirk-handling-for-dpseci-objects.patch b/target/linux/layerscape/patches-4.4/7175-staging-fsl-mc-add-quirk-handling-for-dpseci-objects.patch new file mode 100644 index 0000000000..36c6f89fc6 --- /dev/null +++ b/target/linux/layerscape/patches-4.4/7175-staging-fsl-mc-add-quirk-handling-for-dpseci-objects.patch @@ -0,0 +1,38 @@ +From 5366dc8896ca7cf028db73643860821b189a1dfd Mon Sep 17 00:00:00 2001 +From: Horia Geanta <horia.geanta@nxp.com> +Date: Mon, 11 Apr 2016 11:50:26 -0500 +Subject: [PATCH 175/226] staging: fsl-mc: add quirk handling for dpseci + objects < 4.0 + +dpseci objects < 4.0 are not coherent-- in spite of the fact +that the MC reports them to be coherent in certain versions. +Add a special case to set the no shareability flag for dpseci +objects < 4.0. + +Signed-off-by: Horia Geanta <horia.geanta@nxp.com> +(Stuart: reworded commit message, updated comment in patch) +Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com> +Acked-by: German Rivera <german.rivera@nxp.com> +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + drivers/staging/fsl-mc/bus/dprc-driver.c | 9 +++++++++ + 1 file changed, 9 insertions(+) + +--- a/drivers/staging/fsl-mc/bus/dprc-driver.c ++++ b/drivers/staging/fsl-mc/bus/dprc-driver.c +@@ -312,6 +312,15 @@ int dprc_scan_objects(struct fsl_mc_devi + continue; + } + ++ /* ++ * add a quirk for all versions of dpsec < 4.0...none ++ * are coherent regardless of what the MC reports. ++ */ ++ if ((strcmp(obj_desc->type, "dpseci") == 0) && ++ (obj_desc->ver_major < 4)) ++ obj_desc->flags |= ++ DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY; ++ + irq_count += obj_desc->irq_count; + dev_dbg(&mc_bus_dev->dev, + "Discovered object: type %s, id %d\n", |