From: Michael Chang <zhang971090220@gmail.com>
Date: Wed, 5 Feb 2025 02:01:06 +0000 (+0800)
Subject: net: designware: support phy io micro voltage setting.
X-Git-Tag: v2025.04-rc2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8897f91a5397a90c7e2b6fad4263c93541c9a685;p=pandora-u-boot.git

net: designware: support phy io micro voltage setting.

Support phy io micro voltage setting for NPCM8XX rgmii
interface.

Signed-off-by: Michael Chang <zhang971090220@gmail.com>
---

diff --git a/drivers/net/designware.c b/drivers/net/designware.c
index 94d8f1b4c04..0a1fff38727 100644
--- a/drivers/net/designware.c
+++ b/drivers/net/designware.c
@@ -741,6 +741,18 @@ int designware_eth_probe(struct udevice *dev)
 			puts("Error enabling phy supply\n");
 			return ret;
 		}
+#if IS_ENABLED(CONFIG_ARCH_NPCM8XX)
+		int phy_uv;
+
+		phy_uv = dev_read_u32_default(dev, "phy-supply-microvolt", 0);
+		if (phy_uv) {
+			ret = regulator_set_value(phy_supply, phy_uv);
+			if (ret) {
+				puts("Error setting phy voltage\n");
+				return ret;
+			}
+		}
+#endif
 	}
 #endif