@@ -57,6 +57,11 @@
/* Ethernet switch register */
#define MT7628_SWITCH_FCT0 0x0008
#define MT7628_SWITCH_PFC1 0x0014
+#define MT7628_SWITCH_PVIDC0 0x0040
+#define MT7628_SWITCH_PVIDC1 0x0044
+#define MT7628_SWITCH_PVIDC2 0x0048
+#define MT7628_SWITCH_PVIDC3 0x004c
+#define MT7628_SWITCH_VMSC0 0x0070
#define MT7628_SWITCH_FPA 0x0084
#define MT7628_SWITCH_SOCPC 0x008c
#define MT7628_SWITCH_POC0 0x0090
@@ -140,6 +145,8 @@ struct mt7628_eth_dev {
struct reset_ctl rst_ephy;
struct phy_device *phy;
+
+ int wan_port;
};
static int mt7628_eth_free_pkt(struct udevice *dev, uchar *packet, int length);
@@ -272,6 +279,9 @@ static void mt7628_ephy_init(struct mt7628_eth_dev *priv)
static void rt305x_esw_init(struct mt7628_eth_dev *priv)
{
void __iomem *base = priv->eth_sw_base;
+ void __iomem *reg;
+ u32 val = 0, pvid;
+ int i;
/*
* FC_RLS_TH=200, FC_SET_TH=160
@@ -293,6 +303,25 @@ static void rt305x_esw_init(struct mt7628_eth_dev *priv)
/* 1us cycle number=125 (FE's clock=125Mhz) */
writel(0x7d000000, base + MT7628_SWITCH_BMU_CTRL);
+ /* LAN/WAN partition, WAN port will be unusable in u-boot network */
+ if (priv->wan_port >= 0 && priv->wan_port < 6) {
+ for (i = 0; i < 8; i++) {
+ pvid = i == priv->wan_port ? 2 : 1;
+ reg = base + MT7628_SWITCH_PVIDC0 + (i / 2) * 4;
+ if (i % 2 == 0) {
+ val = pvid;
+ } else {
+ val |= (pvid << 12);
+ writel(val, reg);
+ }
+ }
+
+ val = 0xffff407f;
+ val |= 1 << (8 + priv->wan_port);
+ val &= ~(1 << priv->wan_port);
+ writel(val, base + MT7628_SWITCH_VMSC0);
+ }
+
/* Reset PHY */
reset_assert(&priv->rst_ephy);
reset_deassert(&priv->rst_ephy);
@@ -543,6 +572,9 @@ static int mt7628_eth_probe(struct udevice *dev)
return ret;
}
+ /* WAN port will be isolated from LAN ports */
+ priv->wan_port = dev_read_u32_default(dev, "mediatek,wan-port", -1);
+
/* Put rx and tx rings into KSEG1 area (uncached) */
priv->tx_ring = (struct fe_tx_dma *)
KSEG1ADDR(memalign(ARCH_DMA_MINALIGN,
This patch add support for mt7628-eth to isolate LAN/WAN ports mainly to prevent LAN devices from getting IP address from WAN. Signed-off-by: Weijie Gao <weijie.gao@mediatek.com> --- drivers/net/mt7628-eth.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)