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Message-ID: <20231214094813.24690-6-quic_luoj@quicinc.com>
Date: Thu, 14 Dec 2023 17:48:04 +0800
From: Luo Jie <quic_luoj@...cinc.com>
To: <andrew@...n.ch>, <davem@...emloft.net>, <edumazet@...gle.com>,
<kuba@...nel.org>, <pabeni@...hat.com>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
<hkallweit1@...il.com>, <linux@...linux.org.uk>, <corbet@....net>,
<p.zabel@...gutronix.de>, <f.fainelli@...il.com>
CC: <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-doc@...r.kernel.org>
Subject: [PATCH v7 05/14] net: phy: at803x: Add qca8084_config_init function
Configure MSE detect threshold and ADC clock edge invert.
Signed-off-by: Luo Jie <quic_luoj@...cinc.com>
---
drivers/net/phy/at803x.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 143f0d2e36a6..ba5d069ad351 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -280,6 +280,15 @@
#define QCA8081_PHY_SERDES_MMD1_FIFO_CTRL 0x9072
#define QCA8081_PHY_FIFO_RSTN BIT(11)
+/* QCA8084 ADC clock edge */
+#define QCA8084_ADC_CLK_SEL 0x8b80
+#define QCA8084_ADC_CLK_SEL_ACLK GENMASK(7, 4)
+#define QCA8084_ADC_CLK_SEL_ACLK_FALL 0xf
+#define QCA8084_ADC_CLK_SEL_ACLK_RISE 0x0
+
+#define QCA8084_MSE_THRESHOLD 0x800a
+#define QCA8084_MSE_THRESHOLD_2P5G_VAL 0x51c6
+
MODULE_DESCRIPTION("Qualcomm Atheros AR803x and QCA808X PHY driver");
MODULE_AUTHOR("Matus Ujhelyi");
MODULE_LICENSE("GPL");
@@ -2085,6 +2094,26 @@ static void qca808x_link_change_notify(struct phy_device *phydev)
QCA8081_PHY_FIFO_RSTN, phydev->link ? QCA8081_PHY_FIFO_RSTN : 0);
}
+static int qca8084_config_init(struct phy_device *phydev)
+{
+ int ret;
+
+ /* Invert ADC clock edge */
+ ret = at803x_debug_reg_mask(phydev, QCA8084_ADC_CLK_SEL,
+ QCA8084_ADC_CLK_SEL_ACLK,
+ FIELD_PREP(QCA8084_ADC_CLK_SEL_ACLK,
+ QCA8084_ADC_CLK_SEL_ACLK_FALL));
+ if (ret < 0)
+ return ret;
+
+ /* Adjust MSE threshold value to avoid link issue with
+ * some link partner.
+ */
+ return phy_write_mmd(phydev, MDIO_MMD_PMAPMD,
+ QCA8084_MSE_THRESHOLD,
+ QCA8084_MSE_THRESHOLD_2P5G_VAL);
+}
+
static struct phy_driver at803x_driver[] = {
{
/* Qualcomm Atheros AR8035 */
@@ -2281,6 +2310,7 @@ static struct phy_driver at803x_driver[] = {
.soft_reset = qca808x_soft_reset,
.cable_test_start = qca808x_cable_test_start,
.cable_test_get_status = qca808x_cable_test_get_status,
+ .config_init = qca8084_config_init,
}, };
module_phy_driver(at803x_driver);
--
2.42.0
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