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Message-Id: <20211024082738.849-12-luoj@codeaurora.org>
Date: Sun, 24 Oct 2021 16:27:35 +0800
From: Luo Jie <luoj@...eaurora.org>
To: andrew@...n.ch, hkallweit1@...il.com, linux@...linux.org.uk,
davem@...emloft.net, kuba@...nel.org
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
sricharan@...eaurora.org, Luo Jie <luoj@...eaurora.org>
Subject: [PATCH v7 11/14] net: phy: add qca8081 config_init
Add the qca8081 phy driver config_init function, which includes:
1. Enable fast restrain.
2. Add 802.3az configurations.
3. Initialize ADC threshold as 100mv.
Signed-off-by: Luo Jie <luoj@...eaurora.org>
---
drivers/net/phy/at803x.c | 107 +++++++++++++++++++++++++++++++++++++++
1 file changed, 107 insertions(+)
diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 70c1025e8e5d..da710523b7c4 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -178,6 +178,51 @@
#define AT803X_KEEP_PLL_ENABLED BIT(0)
#define AT803X_DISABLE_SMARTEEE BIT(1)
+/* ADC threshold */
+#define QCA808X_PHY_DEBUG_ADC_THRESHOLD 0x2c80
+#define QCA808X_ADC_THRESHOLD_MASK GENMASK(7, 0)
+#define QCA808X_ADC_THRESHOLD_80MV 0
+#define QCA808X_ADC_THRESHOLD_100MV 0xf0
+#define QCA808X_ADC_THRESHOLD_200MV 0x0f
+#define QCA808X_ADC_THRESHOLD_300MV 0xff
+
+/* CLD control */
+#define QCA808X_PHY_MMD3_ADDR_CLD_CTRL7 0x8007
+#define QCA808X_8023AZ_AFE_CTRL_MASK GENMASK(8, 4)
+#define QCA808X_8023AZ_AFE_EN 0x90
+
+/* AZ control */
+#define QCA808X_PHY_MMD3_AZ_TRAINING_CTRL 0x8008
+#define QCA808X_MMD3_AZ_TRAINING_VAL 0x1c32
+
+#define QCA808X_PHY_MMD1_MSE_THRESHOLD_20DB 0x8014
+#define QCA808X_MSE_THRESHOLD_20DB_VALUE 0x529
+
+#define QCA808X_PHY_MMD1_MSE_THRESHOLD_17DB 0x800E
+#define QCA808X_MSE_THRESHOLD_17DB_VALUE 0x341
+
+#define QCA808X_PHY_MMD1_MSE_THRESHOLD_27DB 0x801E
+#define QCA808X_MSE_THRESHOLD_27DB_VALUE 0x419
+
+#define QCA808X_PHY_MMD1_MSE_THRESHOLD_28DB 0x8020
+#define QCA808X_MSE_THRESHOLD_28DB_VALUE 0x341
+
+#define QCA808X_PHY_MMD7_TOP_OPTION1 0x901c
+#define QCA808X_TOP_OPTION1_DATA 0x0
+
+#define QCA808X_PHY_MMD3_DEBUG_1 0xa100
+#define QCA808X_MMD3_DEBUG_1_VALUE 0x9203
+#define QCA808X_PHY_MMD3_DEBUG_2 0xa101
+#define QCA808X_MMD3_DEBUG_2_VALUE 0x48ad
+#define QCA808X_PHY_MMD3_DEBUG_3 0xa103
+#define QCA808X_MMD3_DEBUG_3_VALUE 0x1698
+#define QCA808X_PHY_MMD3_DEBUG_4 0xa105
+#define QCA808X_MMD3_DEBUG_4_VALUE 0x8001
+#define QCA808X_PHY_MMD3_DEBUG_5 0xa106
+#define QCA808X_MMD3_DEBUG_5_VALUE 0x1111
+#define QCA808X_PHY_MMD3_DEBUG_6 0xa011
+#define QCA808X_MMD3_DEBUG_6_VALUE 0x5f85
+
MODULE_DESCRIPTION("Qualcomm Atheros AR803x and QCA808X PHY driver");
MODULE_AUTHOR("Matus Ujhelyi");
MODULE_LICENSE("GPL");
@@ -1489,6 +1534,67 @@ static int qca83xx_suspend(struct phy_device *phydev)
return 0;
}
+static int qca808x_phy_fast_retrain_config(struct phy_device *phydev)
+{
+ int ret;
+
+ /* Enable fast retrain */
+ ret = genphy_c45_fast_retrain(phydev, true);
+ if (ret)
+ return ret;
+
+ phy_write_mmd(phydev, MDIO_MMD_AN, QCA808X_PHY_MMD7_TOP_OPTION1,
+ QCA808X_TOP_OPTION1_DATA);
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_20DB,
+ QCA808X_MSE_THRESHOLD_20DB_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_17DB,
+ QCA808X_MSE_THRESHOLD_17DB_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_27DB,
+ QCA808X_MSE_THRESHOLD_27DB_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_28DB,
+ QCA808X_MSE_THRESHOLD_28DB_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_1,
+ QCA808X_MMD3_DEBUG_1_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_4,
+ QCA808X_MMD3_DEBUG_4_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_5,
+ QCA808X_MMD3_DEBUG_5_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_3,
+ QCA808X_MMD3_DEBUG_3_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_6,
+ QCA808X_MMD3_DEBUG_6_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_2,
+ QCA808X_MMD3_DEBUG_2_VALUE);
+
+ return 0;
+}
+
+static int qca808x_config_init(struct phy_device *phydev)
+{
+ int ret;
+
+ /* Active adc&vga on 802.3az for the link 1000M and 100M */
+ ret = phy_modify_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_ADDR_CLD_CTRL7,
+ QCA808X_8023AZ_AFE_CTRL_MASK, QCA808X_8023AZ_AFE_EN);
+ if (ret)
+ return ret;
+
+ /* Adjust the threshold on 802.3az for the link 1000M */
+ ret = phy_write_mmd(phydev, MDIO_MMD_PCS,
+ QCA808X_PHY_MMD3_AZ_TRAINING_CTRL, QCA808X_MMD3_AZ_TRAINING_VAL);
+ if (ret)
+ return ret;
+
+ /* Config the fast retrain for the link 2500M */
+ ret = qca808x_phy_fast_retrain_config(phydev);
+ if (ret)
+ return ret;
+
+ /* Configure adc threshold as 100mv for the link 10M */
+ return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_ADC_THRESHOLD,
+ QCA808X_ADC_THRESHOLD_MASK, QCA808X_ADC_THRESHOLD_100MV);
+}
+
static int qca808x_read_status(struct phy_device *phydev)
{
int ret;
@@ -1690,6 +1796,7 @@ static struct phy_driver at803x_driver[] = {
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_status = qca808x_read_status,
+ .config_init = qca808x_config_init,
}, };
module_phy_driver(at803x_driver);
--
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