1 files changed, 41 insertions, 10 deletions

diff --git a/net/dsa/mv88e6131.c b/net/dsa/mv88e6131.c
index bb2b41bc854e..45f7411e90ba 100644
--- a/net/dsa/mv88e6131.c
+++ b/net/dsa/mv88e6131.c
@@ -14,6 +14,13 @@
 #include "dsa_priv.h"
 #include "mv88e6xxx.h"
 
+/*
+ * Switch product IDs
+ */
+#define ID_6085         0x04a0
+#define ID_6095         0x0950
+#define ID_6131         0x1060
+
 static char *mv88e6131_probe(struct mii_bus *bus, int sw_addr)
 {
         int ret;
@@ -21,9 +28,11 @@ 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)
+                if (ret == ID_6085)
+                        return "Marvell 88E6085";
+                if (ret == ID_6095)
                         return "Marvell 88E6095/88E6095F";
-                if (ret == 0x1060)
+                if (ret == ID_6131)
                         return "Marvell 88E6131";
         }
 
@@ -124,7 +133,7 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
          * Ignore removed tag data on doubly tagged packets, disable
          * flow control messages, force flow control priority to the
          * highest, and send all special multicast frames to the CPU
-         * port at the higest priority.
+         * port at the highest priority.
          */
         REG_WRITE(REG_GLOBAL2, 0x05, 0x00ff);
 
@@ -164,6 +173,7 @@ static int mv88e6131_setup_global(struct dsa_switch *ds)
 
 static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
 {
+        struct mv88e6xxx_priv_state *ps = (void *)(ds + 1);
         int addr = REG_PORT(p);
         u16 val;
 
@@ -171,10 +181,13 @@ 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 on physical
          * ports, but force the CPU port and all DSA ports to 1000 Mb/s
-         * full duplex.
+         * (100 Mb/s on 6085) full duplex.
          */
         if (dsa_is_cpu_port(ds, p) || ds->dsa_port_mask & (1 << p))
-                REG_WRITE(addr, 0x01, 0x003e);
+                if (ps->id == ID_6085)
+                        REG_WRITE(addr, 0x01, 0x003d); /* 100 Mb/s */
+                else
+                        REG_WRITE(addr, 0x01, 0x003e); /* 1000 Mb/s */
         else
                 REG_WRITE(addr, 0x01, 0x0003);
 
@@ -194,8 +207,15 @@ static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
          * mode, but do not enable forwarding of unknown unicasts.
          */
         val = 0x0433;
-        if (p == dsa_upstream_port(ds))
+        if (p == dsa_upstream_port(ds)) {
                 val |= 0x0104;
+                /*
+                 * On 6085, unknown multicast forward is controlled
+                 * here rather than in Port Control 2 register.
+                 */
+                if (ps->id == ID_6085)
+                        val |= 0x0008;
+        }
         if (ds->dsa_port_mask & (1 << p))
                 val |= 0x0100;
         REG_WRITE(addr, 0x04, val);
@@ -238,10 +258,19 @@ static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
          * If this is the upstream port for this switch, enable
          * forwarding of unknown multicast addresses.
          */
-        val = 0x0080 | dsa_upstream_port(ds);
-        if (p == dsa_upstream_port(ds))
-                val |= 0x0040;
-        REG_WRITE(addr, 0x08, val);
+        if (ps->id == ID_6085)
+                /*
+                 * on 6085, bits 3:0 are reserved, bit 6 control ARP
+                 * mirroring, and multicast forward is handled in
+                 * Port Control register.
+                 */
+                REG_WRITE(addr, 0x08, 0x0080);
+        else {
+                val = 0x0080 | dsa_upstream_port(ds);
+                if (p == dsa_upstream_port(ds))
+                        val |= 0x0040;
+                REG_WRITE(addr, 0x08, val);
+        }
 
         /*
          * Rate Control: disable ingress rate limiting.
@@ -286,6 +315,8 @@ static int mv88e6131_setup(struct dsa_switch *ds)
         mv88e6xxx_ppu_state_init(ds);
         mutex_init(&ps->stats_mutex);
 
+        ps->id = REG_READ(REG_PORT(0), 0x03) & 0xfff0;
+
         ret = mv88e6131_switch_reset(ds);
         if (ret < 0)
                 return ret;