[PATCH net-next] r8169: factor out PHY init sequence adjusting 10M and ALDPS

[PATCH net-next] r8169: factor out PHY init sequence adjusting 10M and ALDPS

[Heiner Kallweit]

Few chip versions use the same sequence to adjust 10M and ALDPS, so
let's factor it out. This patch also fixes a (most likely) typo in
rtl8168g_1_hw_phy_config. There bit 8 in reg 0x14 on page 0x0bcc
was set and not cleared. According to the vendor driver this bit
needs to be cleared in all cases.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
---
 drivers/net/ethernet/realtek/r8169.c | 49 ++++++++++++----------------
 1 file changed, 21 insertions(+), 28 deletions(-)

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 8666ec095..99fd5c1d7 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -3372,6 +3372,24 @@ static void rtl8168g_disable_aldps(struct rtl8169_private *tp)
 	phy_clear_bits(tp->phydev, 0x10, BIT(2));
 }
 
+static void rtl8168g_phy_adjust_10m_aldps(struct rtl8169_private *tp)
+{
+	struct phy_device *phydev = tp->phydev;
+
+	phy_write(phydev, 0x1f, 0x0bcc);
+	phy_clear_bits(phydev, 0x14, BIT(8));
+
+	phy_write(phydev, 0x1f, 0x0a44);
+	phy_set_bits(phydev, 0x11, BIT(7) | BIT(6));
+
+	phy_write(phydev, 0x1f, 0x0a43);
+	phy_write(phydev, 0x13, 0x8084);
+	phy_clear_bits(phydev, 0x14, BIT(14) | BIT(13));
+	phy_set_bits(phydev, 0x10, BIT(12) | BIT(1) | BIT(0));
+
+	phy_write(phydev, 0x1f, 0x0000);
+}
+
 static void rtl8168g_1_hw_phy_config(struct rtl8169_private *tp)
 {
 	rtl_apply_firmware(tp);
@@ -3398,14 +3416,7 @@ static void rtl8168g_1_hw_phy_config(struct rtl8169_private *tp)
 	rtl_writephy(tp, 0x1f, 0x0a44);
 	rtl_w0w1_phy(tp, 0x11, 0x000c, 0x0000);
 
-	rtl_writephy(tp, 0x1f, 0x0bcc);
-	rtl_w0w1_phy(tp, 0x14, 0x0100, 0x0000);
-	rtl_writephy(tp, 0x1f, 0x0a44);
-	rtl_w0w1_phy(tp, 0x11, 0x00c0, 0x0000);
-	rtl_writephy(tp, 0x1f, 0x0a43);
-	rtl_writephy(tp, 0x13, 0x8084);
-	rtl_w0w1_phy(tp, 0x14, 0x0000, 0x6000);
-	rtl_w0w1_phy(tp, 0x10, 0x1003, 0x0000);
+	rtl8168g_phy_adjust_10m_aldps(tp);
 
 	/* EEE auto-fallback function */
 	rtl_writephy(tp, 0x1f, 0x0a4b);
@@ -3624,16 +3635,7 @@ static void rtl8168ep_1_hw_phy_config(struct rtl8169_private *tp)
 	rtl_w0w1_phy(tp, 0x11, 0x000c, 0x0000);
 	rtl_writephy(tp, 0x1f, 0x0000);
 
-	/* patch 10M & ALDPS */
-	rtl_writephy(tp, 0x1f, 0x0bcc);
-	rtl_w0w1_phy(tp, 0x14, 0x0000, 0x0100);
-	rtl_writephy(tp, 0x1f, 0x0a44);
-	rtl_w0w1_phy(tp, 0x11, 0x00c0, 0x0000);
-	rtl_writephy(tp, 0x1f, 0x0a43);
-	rtl_writephy(tp, 0x13, 0x8084);
-	rtl_w0w1_phy(tp, 0x14, 0x0000, 0x6000);
-	rtl_w0w1_phy(tp, 0x10, 0x1003, 0x0000);
-	rtl_writephy(tp, 0x1f, 0x0000);
+	rtl8168g_phy_adjust_10m_aldps(tp);
 
 	/* Enable EEE auto-fallback function */
 	rtl_writephy(tp, 0x1f, 0x0a4b);
@@ -3658,16 +3660,7 @@ static void rtl8168ep_1_hw_phy_config(struct rtl8169_private *tp)
 
 static void rtl8168ep_2_hw_phy_config(struct rtl8169_private *tp)
 {
-	/* patch 10M & ALDPS */
-	rtl_writephy(tp, 0x1f, 0x0bcc);
-	rtl_w0w1_phy(tp, 0x14, 0x0000, 0x0100);
-	rtl_writephy(tp, 0x1f, 0x0a44);
-	rtl_w0w1_phy(tp, 0x11, 0x00c0, 0x0000);
-	rtl_writephy(tp, 0x1f, 0x0a43);
-	rtl_writephy(tp, 0x13, 0x8084);
-	rtl_w0w1_phy(tp, 0x14, 0x0000, 0x6000);
-	rtl_w0w1_phy(tp, 0x10, 0x1003, 0x0000);
-	rtl_writephy(tp, 0x1f, 0x0000);
+	rtl8168g_phy_adjust_10m_aldps(tp);
 
 	/* Enable UC LPF tune function */
 	rtl_writephy(tp, 0x1f, 0x0a43);
-- 
2.20.1

Re: [PATCH net-next] r8169: factor out PHY init sequence adjusting 10M and ALDPS

[David Miller]

From: Heiner Kallweit <hkallweit1@gmail.com>
Date: Wed, 23 Jan 2019 20:47:30 +0100

> Few chip versions use the same sequence to adjust 10M and ALDPS, so
> let's factor it out. This patch also fixes a (most likely) typo in
> rtl8168g_1_hw_phy_config. There bit 8 in reg 0x14 on page 0x0bcc
> was set and not cleared. According to the vendor driver this bit
> needs to be cleared in all cases.
> 
> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

Applied.