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Message-Id: <b6da54aefab1d3349001b59911e877c494124adc.1308667895.git.barry@grussling.com>
Date: Tue, 21 Jun 2011 07:55:56 -0700
From: Barry Grussling <barry@...ssling.com>
To: netdev@...r.kernel.org
Cc: buytenh@...tstofly.org, Barry Grussling <barry@...ssling.com>
Subject: [PATCH V2 1/1] Allow cascading to work with 6131 chip
---
net/dsa/mv88e6131.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/net/dsa/mv88e6131.c b/net/dsa/mv88e6131.c
index 45f7411..dc43419 100644
--- a/net/dsa/mv88e6131.c
+++ b/net/dsa/mv88e6131.c
@@ -118,10 +118,14 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
REG_WRITE(REG_GLOBAL, 0x1a, (dsa_upstream_port(ds) * 0x1100) | 0x00f0);
/*
- * Disable cascade port functionality, and set the switch's
+ * Disable cascade port functionality unless this device is
+ * used in a cascade configuration, and set the switch's
* DSA device number.
*/
- REG_WRITE(REG_GLOBAL, 0x1c, 0xe000 | (ds->index & 0x1f));
+ if (ds->dst->pd->nr_chips > 1)
+ REG_WRITE(REG_GLOBAL, 0x1c, 0xf000 | (ds->index & 0x1f));
+ else
+ REG_WRITE(REG_GLOBAL, 0x1c, 0xe000 | (ds->index & 0x1f));
/*
* Send all frames with destination addresses matching
--
1.7.0.4
--
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