bus: mvebu-mbus: Restore checking for coherency fabric hardware

The new mvebu-mbus driver was not checking the device tree for
coherency fabric hardware and hence was not setting the hw_io_coherency
flag in mbus_state. This prevented the mvsdio driver from operating
correctly. This patch restores the check.

Signed-off-by: Neil Greatorex <neil@fatboyfat.co.uk>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
index 586d03e29e9e..a0250c65440e 100644
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -858,6 +858,9 @@ int __init mvebu_mbus_init(const char *soc, phys_addr_t mbuswins_phys_base,
                 return -ENOMEM;
         }
 
+        if (of_find_compatible_node(NULL, NULL, "marvell,coherency-fabric"))
+                mbus->hw_io_coherency = 1;
+
         for (win = 0; win < mbus->soc->num_wins; win++)
                 mvebu_mbus_disable_window(mbus, win);