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authorMaxime Chevallier <maxime.chevallier@bootlin.com>2019-05-24 12:05:51 +0200
committerDavid S. Miller <davem@davemloft.net>2019-05-25 16:38:15 -0700
commite8486ca9a12ca71174ddcd2059be385ea7d33064 (patch)
tree7686a4d1dcfe11c3954479047037f646401bf806 /drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
parentae8e1d5e5651f66e1d6a33c51df0425cea61d2f5 (diff)
net: mvpp2: cls: Bypass C2 internals FIFOs at init
The C2 TCAM has internal FIFOs that are only useful for the built-in self-tests. Disable these FIFOS at init, as recommended in the functionnal specs. Suggested-by: Alan Winkowski <walan@marvell.com> Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c')
-rw-r--r--drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
index 9ce73297276e..d549e9a29d9a 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_cls.c
@@ -923,6 +923,12 @@ void mvpp2_cls_init(struct mvpp2 *priv)
mvpp2_cls_c2_write(priv, &c2);
}
+ /* Disable the FIFO stages in C2 engine, which are only used in BIST
+ * mode
+ */
+ mvpp2_write(priv, MVPP22_CLS_C2_TCAM_CTRL,
+ MVPP22_CLS_C2_TCAM_BYPASS_FIFO);
+
mvpp2_cls_port_init_flows(priv);
}