net: mvpp2: handle misc PPv2.1/PPv2.2 differences

This commit handles a few miscellaneous differences between PPv2.1 and
PPv2.2 in different areas, where code done for PPv2.1 doesn't apply for
PPv2.2 or needs to be adjusted (getting the MAC address, disabling PHY
polling, etc.).

Changed by Stefan for U-Boot:
Since mvpp2_port_power_up() has multiple callers in U-Boot, the U-Boot
version of this patch does not remove this function but simply adds the
check for MVPP21 before the mvpp2_port_fc_adv_enable() call.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

drivers/net/mvpp2.c

@@ -342,6 +342,9 @@ do {									\
 #define      MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(v)	(((v) << 6) & \
 					MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK)
 
+#define MVPP22_SMI_MISC_CFG_REG			0x1204
+#define      MVPP22_SMI_POLLING_EN		BIT(10)
+
 #define MVPP22_PORT_BASE			0x30e00
 #define MVPP22_PORT_OFFSET			0x1000
 
@@ -3639,9 +3642,12 @@ static int mvpp2_open(struct udevice *dev, struct mvpp2_port *port)
 
 static void mvpp2_port_power_up(struct mvpp2_port *port)
 {
+	struct mvpp2 *priv = port->priv;
+
 	mvpp2_port_mii_set(port);
 	mvpp2_port_periodic_xon_disable(port);
-	mvpp2_port_fc_adv_enable(port);
+	if (priv->hw_version == MVPP21)
+		mvpp2_port_fc_adv_enable(port);
 	mvpp2_port_reset(port);
 }
 
@@ -3892,9 +3898,15 @@ static int mvpp2_init(struct udevice *dev, struct mvpp2 *priv)
 		mvpp2_conf_mbus_windows(dram_target_info, priv);
 
 	/* Disable HW PHY polling */
-	val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
-	val |= MVPP2_PHY_AN_STOP_SMI0_MASK;
-	writel(val, priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
+	if (priv->hw_version == MVPP21) {
+		val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
+		val |= MVPP2_PHY_AN_STOP_SMI0_MASK;
+		writel(val, priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
+	} else {
+		val = readl(priv->iface_base + MVPP22_SMI_MISC_CFG_REG);
+		val &= ~MVPP22_SMI_POLLING_EN;
+		writel(val, priv->iface_base + MVPP22_SMI_MISC_CFG_REG);
+	}
 
 	/* Allocate and initialize aggregated TXQs */
 	priv->aggr_txqs = devm_kcalloc(dev, num_present_cpus(),
@@ -3920,8 +3932,9 @@ static int mvpp2_init(struct udevice *dev, struct mvpp2 *priv)
 		mvpp2_write(priv, MVPP2_ISR_RXQ_GROUP_REG(i),
 			    CONFIG_MV_ETH_RXQ);
 
-	writel(MVPP2_EXT_GLOBAL_CTRL_DEFAULT,
-	       priv->lms_base + MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG);
+	if (priv->hw_version == MVPP21)
+		writel(MVPP2_EXT_GLOBAL_CTRL_DEFAULT,
+		       priv->lms_base + MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG);
 
 	/* Allow cache snoop when transmiting packets */
 	mvpp2_write(priv, MVPP2_TX_SNOOP_REG, 0x1);