rk3568 rt init

hc

2023-11-06 e3e12f52b214121840b44c91de5b3e5af5d3eb84

 kernel/drivers/net/phy/motorcomm.c
..
..
@@ -573,7 +573,7 @@
573
573
 
574
574
 static int yt8531_config_init(struct phy_device *phydev)
575
575
 {
576
-	int ret = 0;
576
+	int ret = 0, val;
577
577
 
578
578
 #if (YTPHY8531A_XTAL_INIT)
579
579
 	ret = yt8531a_xtal_init(phydev);
..
..
@@ -591,10 +591,17 @@
591
591
 		return ret;
592
592
 
593
593
 	/* RXC, PHY_CLK_OUT and RXData Drive strength:
594
-	 * Drive strength of RXC = 4, PHY_CLK_OUT = 3, RXD0 = 4 (default)
595
-	 * If the io voltage is 3.3v, PHY_CLK_OUT = 2, set 0xa010 = 0x9acf
594
+	 * Drive strength of RXC = 6, PHY_CLK_OUT = 3, RXD0 = 4 (default 1.8v)
595
+	 * If the io voltage is 3.3v, PHY_CLK_OUT = 2, set 0xa010 = 0xdacf
596
596
 	 */
597
-	ret = ytphy_write_ext(phydev, 0xa010, 0x9bcf);
597
+	ret = ytphy_write_ext(phydev, 0xa010, 0xdbcf);
598
+	if (ret < 0)
599
+		return ret;
600
+
601
+	/* Change 100M default BGS voltage from 0x294c to 0x274c */
602
+	val = ytphy_read_ext(phydev, 0x57);
603
+	val = (val & ~(0xf << 8)) | (7 << 8);
604
+	ret = ytphy_write_ext(phydev, 0x57, val);
598
605
 	if (ret < 0)
599
606
 		return ret;
600
607