wlan-ap-Telecominfraproject/feeds/qca-wifi-7/ipq53xx/patches-6.1/0657-net-mdio-ipq4019-Set-MDIO-frequency-correctly.patch
John Crispin 68cf54d9f7 qca-wifi-7: update to ath12.5.5
Signed-off-by: John Crispin <john@phrozen.org>
2025-02-27 12:45:52 +01:00

53 lines
1.9 KiB
Diff

From 5269ab2d7e1e36d65f80495a5f0e76ae620fbb3a Mon Sep 17 00:00:00 2001
From: Luo Jie <quic_luoj@quicinc.com>
Date: Thu, 26 Sep 2024 15:11:40 +0800
Subject: [PATCH] net: mdio-ipq4019: Set MDIO frequency correctly
The MDIO frequency should be masked before configuring it.
Change-Id: Iddc2b6e8c2d3e30b7c84cfd3e7228f431403927f
Signed-off-by: Luo Jie <quic_luoj@quicinc.com>
---
drivers/net/mdio/mdio-ipq4019.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/net/mdio/mdio-ipq4019.c b/drivers/net/mdio/mdio-ipq4019.c
index 98ad19cee7d0..6aa30ed70a9e 100644
--- a/drivers/net/mdio/mdio-ipq4019.c
+++ b/drivers/net/mdio/mdio-ipq4019.c
@@ -148,6 +148,7 @@ static int _ipq4019_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
data = readl(priv->membase[0] + MDIO_MODE_REG);
data |= MDIO_MODE_C45;
+ data &= ~MDIO_CLK_DIV_MASK;
data |= FIELD_PREP(MDIO_CLK_DIV_MASK, priv->clk_div);
writel(data, priv->membase[0] + MDIO_MODE_REG);
@@ -164,6 +165,7 @@ static int _ipq4019_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
data = readl(priv->membase[0] + MDIO_MODE_REG);
data &= ~MDIO_MODE_C45;
+ data &= ~MDIO_CLK_DIV_MASK;
data |= FIELD_PREP(MDIO_CLK_DIV_MASK, priv->clk_div);
writel(data, priv->membase[0] + MDIO_MODE_REG);
@@ -213,6 +215,7 @@ static int _ipq4019_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
data = readl(priv->membase[0] + MDIO_MODE_REG);
data |= MDIO_MODE_C45;
+ data &= ~MDIO_CLK_DIV_MASK;
data |= FIELD_PREP(MDIO_CLK_DIV_MASK, priv->clk_div);
writel(data, priv->membase[0] + MDIO_MODE_REG);
@@ -234,6 +237,7 @@ static int _ipq4019_mdio_write(struct mii_bus *bus, int mii_id, int regnum,
data = readl(priv->membase[0] + MDIO_MODE_REG);
data &= ~MDIO_MODE_C45;
+ data &= ~MDIO_CLK_DIV_MASK;
data |= FIELD_PREP(MDIO_CLK_DIV_MASK, priv->clk_div);
writel(data, priv->membase[0] + MDIO_MODE_REG);
--
2.34.1