dsa: add support for the Marvell 88E6095/6095F switch chips

Add support for the Marvell 88E6095/6095F switch chips.  These
chips are similar to the 88e6131, so we can add the support to
mv88e6131.c easily.

Thanks to Gary Thomas <gary@mlbassoc.com> and Jesper Dangaard
Brouer <hawk@diku.dk> for testing various patches.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Tested-by: Gary Thomas <gary@mlbassoc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 17 insertions, 11 deletions

diff --git a/net/dsa/Kconfig b/net/dsa/Kconfig
index 49211b35725b..c51b55400dc5 100644
--- a/net/dsa/Kconfig
+++ b/net/dsa/Kconfig
@@ -41,13 +41,13 @@ config NET_DSA_MV88E6XXX_NEED_PPU
         default n
 
 config NET_DSA_MV88E6131
-        bool "Marvell 88E6131 ethernet switch chip support"
+        bool "Marvell 88E6095/6095F/6131 ethernet switch chip support"
         select NET_DSA_MV88E6XXX
         select NET_DSA_MV88E6XXX_NEED_PPU
         select NET_DSA_TAG_DSA
         ---help---
-          This enables support for the Marvell 88E6131 ethernet switch
-          chip.
+          This enables support for the Marvell 88E6095/6095F/6131
+          ethernet switch chips.
 
 config NET_DSA_MV88E6123_61_65
         bool "Marvell 88E6123/6161/6165 ethernet switch chip support"
diff --git a/net/dsa/mv88e6131.c b/net/dsa/mv88e6131.c
index 70fae2444cb6..002995721ecf 100644
--- a/net/dsa/mv88e6131.c
+++ b/net/dsa/mv88e6131.c
@@ -1,6 +1,6 @@
 /*
- * net/dsa/mv88e6131.c - Marvell 88e6131 switch chip support
- * Copyright (c) 2008 Marvell Semiconductor
+ * net/dsa/mv88e6131.c - Marvell 88e6095/6095f/6131 switch chip support
+ * Copyright (c) 2008-2009 Marvell Semiconductor
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,6 +21,8 @@ static char *mv88e6131_probe(struct mii_bus *bus, int sw_addr)
         ret = __mv88e6xxx_reg_read(bus, sw_addr, REG_PORT(0), 0x03);
         if (ret >= 0) {
                 ret &= 0xfff0;
+                if (ret == 0x0950)
+                        return "Marvell 88E6095/88E6095F";
                 if (ret == 0x1060)
                         return "Marvell 88E6131";
         }
@@ -36,7 +38,7 @@ static int mv88e6131_switch_reset(struct dsa_switch *ds)
         /*
          * Set all ports to the disabled state.
          */
-        for (i = 0; i < 8; i++) {
+        for (i = 0; i < 11; i++) {
                 ret = REG_READ(REG_PORT(i), 0x04);
                 REG_WRITE(REG_PORT(i), 0x04, ret & 0xfffc);
         }
@@ -136,7 +138,7 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
          * Clear all trunk masks.
          */
         for (i = 0; i < 8; i++)
-                REG_WRITE(REG_GLOBAL2, 0x07, 0x8000 | (i << 12) | 0xff);
+                REG_WRITE(REG_GLOBAL2, 0x07, 0x8000 | (i << 12) | 0x7ff);
 
         /*
          * Clear all trunk mappings.
@@ -159,9 +161,13 @@ static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
 
         /*
          * MAC Forcing register: don't force link, speed, duplex
-         * or flow control state to any particular values.
+         * or flow control state to any particular values on physical
+         * ports, but force the CPU port to 1000 Mb/s full duplex.
          */
-        REG_WRITE(addr, 0x01, 0x0003);
+        if (p == ds->cpu_port)
+                REG_WRITE(addr, 0x01, 0x003e);
+        else
+                REG_WRITE(addr, 0x01, 0x0003);
 
         /*
          * Port Control: disable Core Tag, disable Drop-on-Lock,
@@ -268,7 +274,7 @@ static int mv88e6131_setup(struct dsa_switch *ds)
         if (ret < 0)
                 return ret;
 
-        for (i = 0; i < 6; i++) {
+        for (i = 0; i < 11; i++) {
                 ret = mv88e6131_setup_port(ds, i);
                 if (ret < 0)
                         return ret;
@@ -279,7 +285,7 @@ static int mv88e6131_setup(struct dsa_switch *ds)
 
 static int mv88e6131_port_to_phy_addr(int port)
 {
-        if (port >= 0 && port != 3 && port <= 7)
+        if (port >= 0 && port <= 11)
                 return port;
         return -1;
 }