ar71xx: ag71xx: fix ARP frame reception on AR934x switch ports

SVN-Revision: 30926

diff --git a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
index 9faed2197aae6963713363c9047283c0be269260..b3031135981bc700c7ae325a9a706e1eefd92b30 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
+++ b/target/linux/ar71xx/files/drivers/net/ethernet/atheros/ag71xx/ag71xx_ar7240.c
@@ -207,6 +207,17 @@
 #define AR934X_REG_OPER_MODE1          0x08
 #define   AR934X_REG_OPER_MODE1_PHY4_MII_EN    BIT(28)
 
+#define AR934X_REG_FLOOD_MASK          0x2c
+#define   AR934X_FLOOD_MASK_BC_DP(_p)  BIT(25 + (_p))
+
+#define AR934X_REG_QM_CTRL             0x3c
+#define   AR934X_QM_CTRL_ARP_EN                BIT(15)
+
+#define AR934X_REG_AT_CTRL             0x5c
+#define   AR934X_AT_CTRL_AGE_TIME      BITS(0, 15)
+#define   AR934X_AT_CTRL_AGE_EN                BIT(17)
+#define   AR934X_AT_CTRL_LEARN_CHANGE  BIT(18)
+
 #define AR934X_REG_PORT_BASE(_port)    (0x100 + (_port) * 0x100)
 
 #define AR934X_REG_PORT_VLAN1(_port)   (AR934X_REG_PORT_BASE((_port)) + 0x08)
@@ -556,17 +567,30 @@ static void ar7240sw_setup(struct ar7240sw *as)
        /* Setup TAG priority mapping */
        ar7240sw_reg_write(mii, AR7240_REG_TAG_PRIORITY, 0xfa50);
 
-       /* Enable ARP frame acknowledge, aging, MAC replacing */
-       ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL,
-               AR7240_AT_CTRL_RESERVED |
-               0x2b /* 5 min age time */ |
-               AR7240_AT_CTRL_AGE_EN |
-               AR7240_AT_CTRL_ARP_EN |
-               AR7240_AT_CTRL_LEARN_CHANGE);
-
-       /* Enable Broadcast frames transmitted to the CPU */
-       ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
-                        AR7240_FLOOD_MASK_BROAD_TO_CPU);
+       if (sw_is_ar934x(as)) {
+               /* Enable aging, MAC replacing */
+               ar7240sw_reg_write(mii, AR934X_REG_AT_CTRL,
+                       0x2b /* 5 min age time */ |
+                       AR934X_AT_CTRL_AGE_EN |
+                       AR934X_AT_CTRL_LEARN_CHANGE);
+               /* Enable ARP frame acknowledge */
+               ar7240sw_reg_set(mii, AR934X_REG_QM_CTRL,
+                                AR934X_QM_CTRL_ARP_EN);
+               /* Enable Broadcast frames transmitted to the CPU */
+               ar7240sw_reg_set(mii, AR934X_REG_FLOOD_MASK,
+                                AR934X_FLOOD_MASK_BC_DP(0));
+       } else {
+               /* Enable ARP frame acknowledge, aging, MAC replacing */
+               ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL,
+                       AR7240_AT_CTRL_RESERVED |
+                       0x2b /* 5 min age time */ |
+                       AR7240_AT_CTRL_AGE_EN |
+                       AR7240_AT_CTRL_ARP_EN |
+                       AR7240_AT_CTRL_LEARN_CHANGE);
+               /* Enable Broadcast frames transmitted to the CPU */
+               ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
+                                AR7240_FLOOD_MASK_BROAD_TO_CPU);
+       }
 
        /* setup MTU */
        ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, AR7240_GLOBAL_CTRL_MTU_M,