Merge branch...

Merge branch 'lan78xx-enable-125-mhz-clk-and-auto-speed-configuration-for-lan7801-if-no-eeprom-is-detected'

Rengarajan says:

====================
lan78xx: Enable 125 MHz CLK and Auto Speed configuration for LAN7801 if NO EEPROM is detected

This patch series adds the support for 125 MHz clock, Auto speed and
auto duplex configuration for LAN7801 in the absence of EEPROM.
====================

Link: https://lore.kernel.org/r/20240529140256.1849764-1-rengarajan.s@microchip.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/usb/lan78xx.c

@@ -2941,6 +2941,8 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 		return ret;
 
 	buf |= HW_CFG_MEF_;
+	buf |= HW_CFG_CLK125_EN_;
+	buf |= HW_CFG_REFCLK25_EN_;
 
 	ret = lan78xx_write_reg(dev, HW_CFG, buf);
 	if (ret < 0)
@@ -3029,8 +3031,11 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 		return ret;
 
 	/* LAN7801 only has RGMII mode */
-	if (dev->chipid == ID_REV_CHIP_ID_7801_)
+	if (dev->chipid == ID_REV_CHIP_ID_7801_) {
 		buf &= ~MAC_CR_GMII_EN_;
+		/* Enable Auto Duplex and Auto speed */
+		buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_;
+	}
 
 	if (dev->chipid == ID_REV_CHIP_ID_7800_ ||
 	    dev->chipid == ID_REV_CHIP_ID_7850_) {