From: Ravi Gunasekaran <r-gunasekaran@ti.com>
Date: Thu, 22 Sep 2022 09:51:24 +0000 (+0530)
Subject: net: ti: am65-cpsw-nuss: Enable MDIO manual mode
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=d0fc8182596167ff71c73d9c9e4db69cf84c6071;p=u-boot.git

net: ti: am65-cpsw-nuss: Enable MDIO manual mode

For the TI SoCs affected by errata i2329, enable MDIO manual
mode by default

Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
---

diff --git a/drivers/net/ti/am65-cpsw-nuss.c b/drivers/net/ti/am65-cpsw-nuss.c
index 3d0a329aa1..f674b0baa3 100644
--- a/drivers/net/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ti/am65-cpsw-nuss.c
@@ -21,6 +21,7 @@
 #include <net.h>
 #include <phy.h>
 #include <power-domain.h>
+#include <soc.h>
 #include <linux/bitops.h>
 #include <linux/soc/ti/ti-udma.h>
 
@@ -127,6 +128,8 @@ struct am65_cpsw_priv {
 	bool			has_phy;
 	ofnode			phy_node;
 	u32			phy_addr;
+
+	bool			mdio_manual_mode;
 };
 
 #ifdef PKTSIZE_ALIGN
@@ -541,6 +544,20 @@ static const struct eth_ops am65_cpsw_ops = {
 	.read_rom_hwaddr = am65_cpsw_read_rom_hwaddr,
 };
 
+static const struct soc_attr k3_mdio_soc_data[] = {
+	{ .family = "AM62X", .revision = "SR1.0" },
+	{ .family = "AM64X", .revision = "SR1.0" },
+	{ .family = "AM64X", .revision = "SR2.0" },
+	{ .family = "AM65X", .revision = "SR1.0" },
+	{ .family = "AM65X", .revision = "SR2.0" },
+	{ .family = "J7200", .revision = "SR1.0" },
+	{ .family = "J7200", .revision = "SR2.0" },
+	{ .family = "J721E", .revision = "SR1.0" },
+	{ .family = "J721E", .revision = "SR1.1" },
+	{ .family = "J721S2", .revision = "SR1.0" },
+	{ /* sentinel */ },
+};
+
 static int am65_cpsw_mdio_init(struct udevice *dev)
 {
 	struct am65_cpsw_priv *priv = dev_get_priv(dev);
@@ -553,7 +570,7 @@ static int am65_cpsw_mdio_init(struct udevice *dev)
 					  cpsw_common->mdio_base,
 					  cpsw_common->bus_freq,
 					  clk_get_rate(&cpsw_common->fclk),
-					  false);
+					  priv->mdio_manual_mode);
 	if (!cpsw_common->bus)
 		return -EFAULT;
 
@@ -658,6 +675,10 @@ static int am65_cpsw_port_probe(struct udevice *dev)
 	sprintf(portname, "%s%s", dev->parent->name, dev->name);
 	device_set_name(dev, portname);
 
+	priv->mdio_manual_mode = false;
+	if (soc_device_match(k3_mdio_soc_data))
+		priv->mdio_manual_mode = true;
+
 	ret = am65_cpsw_ofdata_parse_phy(dev);
 	if (ret)
 		goto out;