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| author | Horia Geanta <horia.geanta@nxp.com> | 2016-04-11 11:50:26 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-04-29 18:00:45 -0700 |
| commit | ae014c23d5267e1bd2bbafab0e1c741c202496a5 (patch) | |
| tree | cd4db74a3878f475525c9bc58aca5afb411898a2 | |
| parent | 1716cb4c65d2ca4e18110b345b11b285d89d346f (diff) | |
| download | talos-op-linux-ae014c23d5267e1bd2bbafab0e1c741c202496a5.tar.gz talos-op-linux-ae014c23d5267e1bd2bbafab0e1c741c202496a5.zip | |
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>
| -rw-r--r-- | drivers/staging/fsl-mc/bus/dprc-driver.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/staging/fsl-mc/bus/dprc-driver.c b/drivers/staging/fsl-mc/bus/dprc-driver.c index 53c6e98b65e8..7fc47173c164 100644 --- 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_device *mc_bus_dev, 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", |
