rockchip: 5.15: backport yt8521 driver from upstream kernel v6.2

target/linux/generic/backport-5.15/799-v6.0-net-mii-add-mii_bmcr_encode_fixed.patch

@@ -0,0 +1,55 @@
+From bdb6cfe7512f7a214815a3092f0be50963dcacbc Mon Sep 17 00:00:00 2001
+From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
+Date: Sat, 18 Jun 2022 11:28:32 +0100
+Subject: [PATCH] net: mii: add mii_bmcr_encode_fixed()
+
+Add a function to encode a fixed speed/duplex to a BMCR value.
+
+Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ include/linux/mii.h | 35 +++++++++++++++++++++++++++++++++++
+ 1 file changed, 35 insertions(+)
+
+--- a/include/linux/mii.h
++++ b/include/linux/mii.h
+@@ -595,4 +595,39 @@ static inline u8 mii_resolve_flowctrl_fdx(u16 lcladv, u16 rmtadv)
+ 	return cap;
+ }
+ 
++/**
++ * mii_bmcr_encode_fixed - encode fixed speed/duplex settings to a BMCR value
++ * @speed: a SPEED_* value
++ * @duplex: a DUPLEX_* value
++ *
++ * Encode the speed and duplex to a BMCR value. 2500, 1000, 100 and 10 Mbps are
++ * supported. 2500Mbps is encoded to 1000Mbps. Other speeds are encoded as 10
++ * Mbps. Unknown duplex values are encoded to half-duplex.
++ */
++static inline u16 mii_bmcr_encode_fixed(int speed, int duplex)
++{
++	u16 bmcr;
++
++	switch (speed) {
++	case SPEED_2500:
++	case SPEED_1000:
++		bmcr = BMCR_SPEED1000;
++		break;
++
++	case SPEED_100:
++		bmcr = BMCR_SPEED100;
++		break;
++
++	case SPEED_10:
++	default:
++		bmcr = BMCR_SPEED10;
++		break;
++	}
++
++	if (duplex == DUPLEX_FULL)
++		bmcr |= BMCR_FULLDPLX;
++
++	return bmcr;
++}
++
+ #endif /* __LINUX_MII_H__ */

target/linux/rockchip/patches-5.15/108-net-phy-add-support-for-Motorcomm-yt8531C-phy.patch

@@ -15,15 +15,15 @@ Signed-off-by: Furkan Kardame <f.kardame@manjaro.org>
 
 --- a/drivers/net/phy/motorcomm.c
 +++ b/drivers/net/phy/motorcomm.c
-@@ -10,6 +10,7 @@
- #include <linux/phy.h>
+@@ -13,6 +13,7 @@
  
  #define PHY_ID_YT8511		0x0000010a
+ #define PHY_ID_YT8521		0x0000011A
 +#define PHY_ID_YT8531		0x4f51e91b
  
- #define YT8511_PAGE_SELECT	0x1e
- #define YT8511_PAGE		0x1f
-@@ -38,6 +39,38 @@
+ /* YT8521 Register Overview
+  *	UTP Register space	|	FIBER Register space
+@@ -129,6 +130,38 @@
  #define YT8511_DELAY_FE_TX_EN	(0xf << 12)
  #define YT8511_DELAY_FE_TX_DIS	(0x2 << 12)
  
@@ -59,11 +59,11 @@ Signed-off-by: Furkan Kardame <f.kardame@manjaro.org>
 + */
 +#define YT8531_CLKCFG_125M	(BIT(6) | BIT(4) | (0x0 < 1))
 +
- static int yt8511_read_page(struct phy_device *phydev)
- {
- 	return __phy_read(phydev, YT8511_PAGE_SELECT);
-@@ -111,6 +144,51 @@ err_restore_page:
- 	return phy_restore_page(phydev, oldpage, ret);
+ /* Extended register is different from MMD Register and MII Register.
+  * We can use ytphy_read_ext/ytphy_write_ext/ytphy_modify_ext function to
+  * operate extended register.
+@@ -1723,6 +1756,51 @@ err_restore_page:
+ 	return ret;
  }
  
 +static int yt8531_config_init(struct phy_device *phydev)
@@ -114,10 +114,10 @@ Signed-off-by: Furkan Kardame <f.kardame@manjaro.org>
  static struct phy_driver motorcomm_phy_drvs[] = {
  	{
  		PHY_ID_MATCH_EXACT(PHY_ID_YT8511),
-@@ -120,7 +198,16 @@ static struct phy_driver motorcomm_phy_d
- 		.resume		= genphy_resume,
- 		.read_page	= yt8511_read_page,
- 		.write_page	= yt8511_write_page,
+@@ -1749,7 +1827,16 @@ static struct phy_driver motorcomm_phy_d
+ 		.soft_reset	= yt8521_soft_reset,
+ 		.suspend	= yt8521_suspend,
+ 		.resume		= yt8521_resume,
 +	}, {
 +		PHY_ID_MATCH_EXACT(PHY_ID_YT8531),
 +		.name		= "YT8531 Gigabit Ethernet",
@@ -131,10 +131,10 @@ Signed-off-by: Furkan Kardame <f.kardame@manjaro.org>
  };
  
  module_phy_driver(motorcomm_phy_drvs);
-@@ -131,6 +218,7 @@ MODULE_LICENSE("GPL");
- 
+@@ -1762,6 +1849,7 @@ MODULE_LICENSE("GPL");
  static const struct mdio_device_id __maybe_unused motorcomm_tbl[] = {
  	{ PHY_ID_MATCH_EXACT(PHY_ID_YT8511) },
+ 	{ PHY_ID_MATCH_EXACT(PHY_ID_YT8521) },
 +	{ PHY_ID_MATCH_EXACT(PHY_ID_YT8531) },
  	{ /* sentinal */ }
  };