[PATCH net-next v4 09/13] net: renesas: rswitch: update port HW init

[Michael Dege <michael.dege@renesas.com>]

Certain Ethernet and cpu port settings need to be updated for vlan
support.

Signed-off-by: Michael Dege <michael.dege@renesas.com>
---
 drivers/net/ethernet/renesas/rswitch.h      |  4 ----
 drivers/net/ethernet/renesas/rswitch_main.c | 15 ++++++++++++---
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/renesas/rswitch.h b/drivers/net/ethernet/renesas/rswitch.h
index d7a8866a3993..89315b6cde0f 100644
--- a/drivers/net/ethernet/renesas/rswitch.h
+++ b/drivers/net/ethernet/renesas/rswitch.h
@@ -766,8 +766,6 @@ enum vlan_egress_mode {
 	HW_SC_TAG_VLAN,
 };
 
-#define EAVCC_VEM_SC_TAG	(0x3 << 16)
-
 #define MPIC_PIS		GENMASK(2, 0)
 #define MPIC_PIS_GMII		2
 #define MPIC_PIS_XGMII		4
@@ -806,8 +804,6 @@ enum rswitch_gwca_mode {
 #define GWMTIRM_MTIOG		BIT(0)
 #define GWMTIRM_MTR		BIT(1)
 
-#define GWVCC_VEM_SC_TAG	(0x3 << 16)
-
 #define GWARIRM_ARIOG		BIT(0)
 #define GWARIRM_ARR		BIT(1)
 
diff --git a/drivers/net/ethernet/renesas/rswitch_main.c b/drivers/net/ethernet/renesas/rswitch_main.c
index 90c44dcfd169..d00af333fcce 100644
--- a/drivers/net/ethernet/renesas/rswitch_main.c
+++ b/drivers/net/ethernet/renesas/rswitch_main.c
@@ -737,8 +737,11 @@ static int rswitch_gwca_hw_init(struct rswitch_private *priv)
 	if (err < 0)
 		return err;
 
-	iowrite32(GWVCC_VEM_SC_TAG, priv->addr + GWVCC);
-	iowrite32(0, priv->addr + GWTTFC);
+	iowrite32(0, priv->addr + GWIRC);
+	iowrite32(FIELD_PREP(DQD, DES_RAM_DP), priv->addr + GWRDQDC0);
+	/* Drop frames with unknown tags */
+	iowrite32(UT, priv->addr + GWTTFC);
+
 	iowrite32(lower_32_bits(priv->gwca.linkfix_table_dma), priv->addr + GWDCBAC1);
 	iowrite32(upper_32_bits(priv->gwca.linkfix_table_dma), priv->addr + GWDCBAC0);
 	iowrite32(lower_32_bits(priv->gwca.ts_queue.ring_dma), priv->addr + GWTDCAC10);
@@ -880,6 +883,7 @@ static bool rswitch_rx(struct net_device *ndev, int *quota)
 	limit = boguscnt;
 
 	desc = &gq->rx_ring[gq->cur];
+
 	while ((desc->desc.die_dt & DT_MASK) != DT_FEMPTY) {
 		dma_rmb();
 		skb = rswitch_rx_handle_desc(ndev, gq, desc);
@@ -1284,7 +1288,12 @@ static int rswitch_etha_hw_init(struct rswitch_etha *etha, const u8 *mac)
 	if (err < 0)
 		return err;
 
-	iowrite32(EAVCC_VEM_SC_TAG, etha->addr + EAVCC);
+	iowrite32(0, etha->addr + EAIRC);
+	iowrite32(FIELD_PREP(DQD, DES_RAM_DP), etha->addr + EATDQDC0);
+
+	/* Drop frames with unknown tags */
+	iowrite32(UT, etha->addr + EARTFC);
+
 	rswitch_rmac_setting(etha, mac);
 	rswitch_etha_enable_mii(etha);
 

-- 
2.43.0