Re: [PATCH net-next] net: phy: add driver for MediaTek SoC built-in GE PHYs

From: Heiner Kallweit
Date: Fri Apr 14 2023 - 01:58:01 EST

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In reply to: Andrew Lunn: "Re: [PATCH net-next] net: phy: add driver for MediaTek SoC built-in GE PHYs"
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On 14.04.2023 02:42, Daniel Golle wrote:
> Some of MediaTek's Filogic SoCs come with built-in Gigabit Ethernet
> PHYs which require calibration data from the SoC's efuse.
> Add support for these PHYs to the mediatek-ge driver if built for
> MediaTek's ARM64 SoCs.
>
> Signed-off-by: Daniel Golle <daniel@xxxxxxxxxxxxxx>
> ---
> MAINTAINERS | 8 +
> drivers/net/phy/Kconfig | 12 +
> drivers/net/phy/mediatek-ge.c | 1153 ++++++++++++++++++++++++++++++++-

As Andrew pointed out already: 95% of the code seem to be about
calibration. So either create a new driver or at least put
the calibration code into its own source code file.

> 3 files changed, 1170 insertions(+), 3 deletions(-)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index fdcef63fa9a02..dac644733c5a7 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -13058,6 +13058,14 @@ S: Maintained
> F: drivers/net/pcs/pcs-mtk-lynxi.c
> F: include/linux/pcs/pcs-mtk-lynxi.h
>
> +MEDIATEK ETHERNET PHY DRIVERS
> +M: Daniel Golle <daniel@xxxxxxxxxxxxxx>
> +M: Qingfang Deng <dqfext@xxxxxxxxx>
> +M: SkyLake Huang <SkyLake.Huang@xxxxxxxxxxxx>
> +L: netdev@xxxxxxxxxxxxxxx
> +S: Maintained
> +F: drivers/net/phy/mediatek-ge.c
> +
> MEDIATEK I2C CONTROLLER DRIVER
> M: Qii Wang <qii.wang@xxxxxxxxxxxx>
> L: linux-i2c@xxxxxxxxxxxxxxx
> diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
> index 6b9525def9736..ca9c396d97adf 100644
> --- a/drivers/net/phy/Kconfig
> +++ b/drivers/net/phy/Kconfig
> @@ -230,6 +230,18 @@ config MEDIATEK_GE_PHY
> help
> Supports the MediaTek Gigabit Ethernet PHYs.
>
> +config MEDIATEK_GE_PHY_SOC
> + bool "MediaTek SoC Ethernet PHYs"
> + depends on (ARM64 && ARCH_MEDIATEK && MEDIATEK_GE_PHY) || COMPILE_TEST
> + select NVMEM_MTK_EFUSE
> + help
> + Supports MediaTek SoC built-in Gigabit Ethernet PHYs.
> +
> + Include support for built-in Ethernet PHYs which are present in
> + the MT7981 and MT7988 SoCs. These PHYs need calibration data
> + present in the SoCs efuse and will dynamically calibrate VCM
> + (common-mode voltage) during startup.
> +
> config MICREL_PHY
> tristate "Micrel PHYs"
> depends on PTP_1588_CLOCK_OPTIONAL
> diff --git a/drivers/net/phy/mediatek-ge.c b/drivers/net/phy/mediatek-ge.c
> index 68ee434f9dea3..70c2a9da4e239 100644
> --- a/drivers/net/phy/mediatek-ge.c
> +++ b/drivers/net/phy/mediatek-ge.c
> @@ -1,16 +1,282 @@
> // SPDX-License-Identifier: GPL-2.0+
> #include <linux/bitfield.h>
> #include <linux/module.h>
> +#include <linux/nvmem-consumer.h>
> +#include <linux/of_address.h>
> +#include <linux/of_platform.h>
> #include <linux/phy.h>
>
> +#define MTK_GPHY_ID_VENDOR 0x03a29400
> +#define MTK_GPHY_ID_MT7530 0x03a29412
> +#define MTK_GPHY_ID_MT7531 0x03a29441
> +#define MTK_GPHY_ID_MT7981 0x03a29461
> +#define MTK_GPHY_ID_MT7988 0x03a29481
> +
> #define MTK_EXT_PAGE_ACCESS 0x1f
> #define MTK_PHY_PAGE_STANDARD 0x0000
> #define MTK_PHY_PAGE_EXTENDED 0x0001
> #define MTK_PHY_PAGE_EXTENDED_2 0x0002
> #define MTK_PHY_PAGE_EXTENDED_3 0x0003
> +
> +#define MTK_PHY_LPI_REG_14 0x14
> +#define MTK_PHY_LPI_WAKE_TIMER_1000_MASK GENMASK(8, 0)
> +
> +#define MTK_PHY_LPI_REG_1c 0x1c
> +#define MTK_PHY_SMI_DET_ON_THRESH_MASK GENMASK(13, 8)
> +
> #define MTK_PHY_PAGE_EXTENDED_2A30 0x2a30
> #define MTK_PHY_PAGE_EXTENDED_52B5 0x52b5
>
> +#define ANALOG_INTERNAL_OPERATION_MAX_US 20
> +#define TXRESERVE_MIN 0
> +#define TXRESERVE_MAX 7
> +
> +#define MTK_PHY_ANARG_RG 0x10
> +#define MTK_PHY_TCLKOFFSET_MASK GENMASK(12, 8)
> +
> +/* Registers on MDIO_MMD_VEND1 */
> +#define MTK_PHY_MIDDLE_LEVEL_SHAPPER_0TO1 0
> +#define MTK_PHY_1st_OVERSHOOT_LEVEL_0TO1 1
> +#define MTK_PHY_2nd_OVERSHOOT_LEVEL_0TO1 2
> +#define MTK_PHY_1st_OVERSHOOT_LEVEL_1TO0 4
> +#define MTK_PHY_2nd_OVERSHOOT_LEVEL_1TO0 5 /* N means negative */
> +#define MTK_PHY_1st_OVERSHOOT_LEVEL_0TON1 7
> +#define MTK_PHY_2nd_OVERSHOOT_LEVEL_0TON1 8
> +#define MTK_PHY_1st_OVERSHOOT_LEVEL_N1TO0 10
> +#define MTK_PHY_2nd_OVERSHOOT_LEVEL_N1TO0 11
> +
> +#define MTK_PHY_TXVLD_DA_RG 0x12
> +#define MTK_PHY_DA_TX_I2MPB_A_GBE_MASK GENMASK(15, 10)
> +#define MTK_PHY_DA_TX_I2MPB_A_TBT_MASK GENMASK(5, 0)
> +
> +#define MTK_PHY_TX_I2MPB_TEST_MODE_A2 0x16
> +#define MTK_PHY_DA_TX_I2MPB_A_HBT_MASK GENMASK(15, 10)
> +#define MTK_PHY_DA_TX_I2MPB_A_TST_MASK GENMASK(5, 0)
> +
> +#define MTK_PHY_TX_I2MPB_TEST_MODE_B1 0x17
> +#define MTK_PHY_DA_TX_I2MPB_B_GBE_MASK GENMASK(13, 8)
> +#define MTK_PHY_DA_TX_I2MPB_B_TBT_MASK GENMASK(5, 0)
> +
> +#define MTK_PHY_TX_I2MPB_TEST_MODE_B2 0x18
> +#define MTK_PHY_DA_TX_I2MPB_B_HBT_MASK GENMASK(13, 8)
> +#define MTK_PHY_DA_TX_I2MPB_B_TST_MASK GENMASK(5, 0)
> +
> +#define MTK_PHY_TX_I2MPB_TEST_MODE_C1 0x19
> +#define MTK_PHY_DA_TX_I2MPB_C_GBE_MASK GENMASK(13, 8)
> +#define MTK_PHY_DA_TX_I2MPB_C_TBT_MASK GENMASK(5, 0)
> +
> +#define MTK_PHY_TX_I2MPB_TEST_MODE_C2 0x20
> +#define MTK_PHY_DA_TX_I2MPB_C_HBT_MASK GENMASK(13, 8)
> +#define MTK_PHY_DA_TX_I2MPB_C_TST_MASK GENMASK(5, 0)
> +
> +#define MTK_PHY_TX_I2MPB_TEST_MODE_D1 0x21
> +#define MTK_PHY_DA_TX_I2MPB_D_GBE_MASK GENMASK(13, 8)
> +#define MTK_PHY_DA_TX_I2MPB_D_TBT_MASK GENMASK(5, 0)
> +
> +#define MTK_PHY_TX_I2MPB_TEST_MODE_D2 0x22
> +#define MTK_PHY_DA_TX_I2MPB_D_HBT_MASK GENMASK(13, 8)
> +#define MTK_PHY_DA_TX_I2MPB_D_TST_MASK GENMASK(5, 0)
> +
> +#define MTK_PHY_RXADC_CTRL_RG7 0xc6
> +#define MTK_PHY_DA_AD_BUF_BIAS_LP_MASK GENMASK(9, 8)
> +
> +#define MTK_PHY_RXADC_CTRL_RG9 0xc8
> +#define MTK_PHY_DA_RX_PSBN_TBT_MASK GENMASK(14, 12)
> +#define MTK_PHY_DA_RX_PSBN_HBT_MASK GENMASK(10, 8)
> +#define MTK_PHY_DA_RX_PSBN_GBE_MASK GENMASK(6, 4)
> +#define MTK_PHY_DA_RX_PSBN_LP_MASK GENMASK(2, 0)
> +
> +#define MTK_PHY_LDO_OUTPUT_V 0xd7
> +
> +#define MTK_PHY_RG_ANA_CAL_RG0 0xdb
> +#define MTK_PHY_RG_CAL_CKINV BIT(12)
> +#define MTK_PHY_RG_ANA_CALEN BIT(8)
> +#define MTK_PHY_RG_ZCALEN_A BIT(0)
> +
> +#define MTK_PHY_RG_ANA_CAL_RG1 0xdc
> +#define MTK_PHY_RG_ZCALEN_B BIT(12)
> +#define MTK_PHY_RG_ZCALEN_C BIT(8)
> +#define MTK_PHY_RG_ZCALEN_D BIT(4)
> +#define MTK_PHY_RG_TXVOS_CALEN BIT(0)
> +
> +#define MTK_PHY_RG_ANA_CAL_RG5 0xe0
> +#define MTK_PHY_RG_REXT_TRIM_MASK GENMASK(13, 8)
> +
> +#define MTK_PHY_RG_TX_FILTER 0xfe
> +
> +#define MTK_PHY_RG_LPI_PCS_DSP_CTRL_REG120 0x120
> +#define MTK_PHY_LPI_SIG_EN_LO_THRESH1000_MASK GENMASK(12, 8)
> +#define MTK_PHY_LPI_SIG_EN_HI_THRESH1000_MASK GENMASK(4, 0)
> +
> +#define MTK_PHY_RG_LPI_PCS_DSP_CTRL_REG122 0x122
> +#define MTK_PHY_LPI_NORM_MSE_HI_THRESH1000_MASK GENMASK(7, 0)
> +
> +#define MTK_PHY_RG_TESTMUX_ADC_CTRL 0x144
> +#define MTK_PHY_RG_TXEN_DIG_MASK GENMASK(5, 5)
> +
> +#define MTK_PHY_RG_CR_TX_AMP_OFFSET_A_B 0x172
> +#define MTK_PHY_CR_TX_AMP_OFFSET_A_MASK GENMASK(13, 8)
> +#define MTK_PHY_CR_TX_AMP_OFFSET_B_MASK GENMASK(6, 0)
> +
> +#define MTK_PHY_RG_CR_TX_AMP_OFFSET_C_D 0x173
> +#define MTK_PHY_CR_TX_AMP_OFFSET_C_MASK GENMASK(13, 8)
> +#define MTK_PHY_CR_TX_AMP_OFFSET_D_MASK GENMASK(6, 0)
> +
> +#define MTK_PHY_RG_AD_CAL_COMP 0x17a
> +#define MTK_PHY_AD_CAL_COMP_OUT_SHIFT (8)
> +
> +#define MTK_PHY_RG_AD_CAL_CLK 0x17b
> +#define MTK_PHY_DA_CAL_CLK BIT(0)
> +
> +#define MTK_PHY_RG_AD_CALIN 0x17c
> +#define MTK_PHY_DA_CALIN_FLAG BIT(0)
> +
> +#define MTK_PHY_RG_DASN_DAC_IN0_A 0x17d
> +#define MTK_PHY_FORCE_DASN_DAC_IN0_A BIT(15)
> +
> +#define MTK_PHY_RG_DASN_DAC_IN0_B 0x17e
> +#define MTK_PHY_FORCE_DASN_DAC_IN0_B BIT(15)
> +
> +#define MTK_PHY_RG_DASN_DAC_IN0_C 0x17f
> +#define MTK_PHY_FORCE_DASN_DAC_IN0_C BIT(15)
> +
> +#define MTK_PHY_RG_DASN_DAC_IN0_D 0x180
> +#define MTK_PHY_FORCE_DASN_DAC_IN0_D BIT(15)
> +
> +#define MTK_PHY_RG_DASN_DAC_IN1_A 0x181
> +#define MTK_PHY_FORCE_DASN_DAC_IN1_A BIT(15)
> +
> +#define MTK_PHY_RG_DASN_DAC_IN1_B 0x182
> +#define MTK_PHY_FORCE_DASN_DAC_IN1_B BIT(15)
> +
> +#define MTK_PHY_RG_DASN_DAC_IN1_C 0x183
> +#define MTK_PHY_FORCE_DASN_DAC_IN1_C BIT(15)
> +
> +#define MTK_PHY_RG_DASN_DAC_IN1_D 0x184
> +#define MTK_PHY_FORCE_DASN_DAC_IN1_D BIT(15)
> +
> +#define MTK_PHY_RG_DEV1E_REG19b 0x19b
> +#define MTK_PHY_BYPASS_DSP_LPI_READY BIT(8)
> +
> +#define MTK_PHY_RG_LP_IIR2_K1_L 0x22a
> +#define MTK_PHY_RG_LP_IIR2_K1_U 0x22b
> +#define MTK_PHY_RG_LP_IIR2_K2_L 0x22c
> +#define MTK_PHY_RG_LP_IIR2_K2_U 0x22d
> +#define MTK_PHY_RG_LP_IIR2_K3_L 0x22e
> +#define MTK_PHY_RG_LP_IIR2_K3_U 0x22f
> +#define MTK_PHY_RG_LP_IIR2_K4_L 0x230
> +#define MTK_PHY_RG_LP_IIR2_K4_U 0x231
> +#define MTK_PHY_RG_LP_IIR2_K5_L 0x232
> +#define MTK_PHY_RG_LP_IIR2_K5_U 0x233
> +
> +#define MTK_PHY_RG_DEV1E_REG234 0x234
> +#define MTK_PHY_TR_OPEN_LOOP_EN_MASK GENMASK(0, 0)
> +#define MTK_PHY_LPF_X_AVERAGE_MASK GENMASK(7, 4)
> +#define MTK_PHY_TR_LP_IIR_EEE_EN BIT(12)
> +
> +#define MTK_PHY_RG_LPF_CNT_VAL 0x235
> +
> +#define MTK_PHY_RG_DEV1E_REG238 0x238
> +#define MTK_PHY_LPI_SLV_SEND_TX_TIMER_MASK GENMASK(8, 0)
> +#define MTK_PHY_LPI_SLV_SEND_TX_EN BIT(12)
> +
> +#define MTK_PHY_RG_DEV1E_REG239 0x239
> +#define MTK_PHY_LPI_SEND_LOC_TIMER_MASK GENMASK(8, 0)
> +#define MTK_PHY_LPI_TXPCS_LOC_RCV BIT(12)
> +
> +#define MTK_PHY_RG_DEV1E_REG27C 0x27c
> +#define MTK_PHY_VGASTATE_FFE_THR_ST1_MASK GENMASK(12, 8)
> +#define MTK_PHY_RG_DEV1E_REG27D 0x27d
> +#define MTK_PHY_VGASTATE_FFE_THR_ST2_MASK GENMASK(4, 0)
> +
> +#define MTK_PHY_RG_DEV1E_REG2C7 0x2c7
> +#define MTK_PHY_MAX_GAIN_MASK GENMASK(4, 0)
> +#define MTK_PHY_MIN_GAIN_MASK GENMASK(12, 8)
> +
> +#define MTK_PHY_RG_DEV1E_REG2D1 0x2d1
> +#define MTK_PHY_VCO_SLICER_THRESH_BITS_HIGH_EEE_MASK GENMASK(7, 0)
> +#define MTK_PHY_LPI_SKIP_SD_SLV_TR BIT(8)
> +#define MTK_PHY_LPI_TR_READY BIT(9)
> +#define MTK_PHY_LPI_VCO_EEE_STG0_EN BIT(10)
> +
> +#define MTK_PHY_RG_DEV1E_REG323 0x323
> +#define MTK_PHY_EEE_WAKE_MAS_INT_DC BIT(0)
> +#define MTK_PHY_EEE_WAKE_SLV_INT_DC BIT(4)
> +
> +#define MTK_PHY_RG_DEV1E_REG324 0x324
> +#define MTK_PHY_SMI_DETCNT_MAX_MASK GENMASK(5, 0)
> +#define MTK_PHY_SMI_DET_MAX_EN BIT(8)
> +
> +#define MTK_PHY_RG_DEV1E_REG326 0x326
> +#define MTK_PHY_LPI_MODE_SD_ON BIT(0)
> +#define MTK_PHY_RESET_RANDUPD_CNT BIT(1)
> +#define MTK_PHY_TREC_UPDATE_ENAB_CLR BIT(2)
> +#define MTK_PHY_LPI_QUIT_WAIT_DFE_SIG_DET_OFF BIT(4)
> +#define MTK_PHY_TR_READY_SKIP_AFE_WAKEUP BIT(5)
> +
> +#define MTK_PHY_LDO_PUMP_EN_PAIRAB 0x502
> +#define MTK_PHY_LDO_PUMP_EN_PAIRCD 0x503
> +
> +#define MTK_PHY_DA_TX_R50_PAIR_A 0x53d
> +#define MTK_PHY_DA_TX_R50_PAIR_B 0x53e
> +#define MTK_PHY_DA_TX_R50_PAIR_C 0x53f
> +#define MTK_PHY_DA_TX_R50_PAIR_D 0x540
> +
> +#define MTK_PHY_RG_BG_RASEL 0x115
> +#define MTK_PHY_RG_BG_RASEL_MASK GENMASK(2, 0)
> +
> +/* These macro privides efuse parsing for internal phy. */
> +#define EFS_DA_TX_I2MPB_A(x) (((x) >> 0) & GENMASK(5, 0))
> +#define EFS_DA_TX_I2MPB_B(x) (((x) >> 6) & GENMASK(5, 0))
> +#define EFS_DA_TX_I2MPB_C(x) (((x) >> 12) & GENMASK(5, 0))
> +#define EFS_DA_TX_I2MPB_D(x) (((x) >> 18) & GENMASK(5, 0))
> +#define EFS_DA_TX_AMP_OFFSET_A(x) (((x) >> 24) & GENMASK(5, 0))
> +
> +#define EFS_DA_TX_AMP_OFFSET_B(x) (((x) >> 0) & GENMASK(5, 0))
> +#define EFS_DA_TX_AMP_OFFSET_C(x) (((x) >> 6) & GENMASK(5, 0))
> +#define EFS_DA_TX_AMP_OFFSET_D(x) (((x) >> 12) & GENMASK(5, 0))
> +#define EFS_DA_TX_R50_A(x) (((x) >> 18) & GENMASK(5, 0))
> +#define EFS_DA_TX_R50_B(x) (((x) >> 24) & GENMASK(5, 0))
> +
> +#define EFS_DA_TX_R50_C(x) (((x) >> 0) & GENMASK(5, 0))
> +#define EFS_DA_TX_R50_D(x) (((x) >> 6) & GENMASK(5, 0))
> +
> +#define EFS_RG_BG_RASEL(x) (((x) >> 4) & GENMASK(2, 0))
> +#define EFS_RG_REXT_TRIM(x) (((x) >> 7) & GENMASK(5, 0))
> +
> +enum {
> + NO_PAIR,
> + PAIR_A,
> + PAIR_B,
> + PAIR_C,
> + PAIR_D,
> +};
> +
> +enum {
> + GPHY_PORT0,
> + GPHY_PORT1,
> + GPHY_PORT2,
> + GPHY_PORT3,
> +};
> +
> +enum calibration_mode {
> + EFUSE_K,
> + SW_K
> +};
> +
> +enum CAL_ITEM {
> + REXT,
> + TX_OFFSET,
> + TX_AMP,
> + TX_R50,
> + TX_VCM
> +};
> +
> +enum CAL_MODE {
> + EFUSE_M,
> + SW_M
> +};
> +
> static int mtk_gephy_read_page(struct phy_device *phydev)
> {
> return __phy_read(phydev, MTK_EXT_PAGE_ACCESS);
> @@ -68,9 +334,864 @@ static int mt7531_phy_config_init(struct phy_device *phydev)
> return 0;
> }
>
> +#if IS_ENABLED(CONFIG_MEDIATEK_GE_PHY_SOC)
> +/* One calibration cycle consists of:
> + * 1.Set DA_CALIN_FLAG high to start calibration. Keep it high
> + * until AD_CAL_COMP is ready to output calibration result.
> + * 2.Wait until DA_CAL_CLK is available.
> + * 3.Fetch AD_CAL_COMP_OUT.
> + */
> +static int cal_cycle(struct phy_device *phydev, int devad,
> + u32 regnum, u16 mask, u16 cal_val)
> +{
> + int reg_val;
> + int ret;
> +
> + phy_modify_mmd(phydev, devad, regnum,
> + mask, cal_val);
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_AD_CALIN,
> + MTK_PHY_DA_CALIN_FLAG);
> +
> + ret = phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_AD_CAL_CLK, reg_val,
> + reg_val & MTK_PHY_DA_CAL_CLK, 500,
> + ANALOG_INTERNAL_OPERATION_MAX_US, false);
> + if (ret) {
> + dev_err(&phydev->mdio.dev, "Calibration cycle timeout\n");

There's phydev_err() et al for printing messages from PHY drivers.

> + return ret;
> + }
> +
> + phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_AD_CALIN,
> + MTK_PHY_DA_CALIN_FLAG);
> + ret = phy_read_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_AD_CAL_COMP) >>
> + MTK_PHY_AD_CAL_COMP_OUT_SHIFT;
> + dev_dbg(&phydev->mdio.dev, "cal_val: 0x%x, ret: %d\n", cal_val, ret);
> +
> + return ret;
> +}
> +
> +static int rext_fill_result(struct phy_device *phydev, u16 *buf)
> +{
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_ANA_CAL_RG5,
> + MTK_PHY_RG_REXT_TRIM_MASK, buf[0] << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND2, MTK_PHY_RG_BG_RASEL,
> + MTK_PHY_RG_BG_RASEL_MASK, buf[1]);
> +
> + return 0;
> +}
> +
> +static int rext_cal_efuse(struct phy_device *phydev, u32 *buf)
> +{
> + u16 rext_cal_val[2];
> +
> + rext_cal_val[0] = EFS_RG_REXT_TRIM(buf[3]);
> + rext_cal_val[1] = EFS_RG_BG_RASEL(buf[3]);
> + rext_fill_result(phydev, rext_cal_val);
> +
> + return 0;
> +}
> +
> +static int tx_offset_fill_result(struct phy_device *phydev, u16 *buf)
> +{
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_CR_TX_AMP_OFFSET_A_B,
> + MTK_PHY_CR_TX_AMP_OFFSET_A_MASK, buf[0] << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_CR_TX_AMP_OFFSET_A_B,
> + MTK_PHY_CR_TX_AMP_OFFSET_B_MASK, buf[1]);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_CR_TX_AMP_OFFSET_C_D,
> + MTK_PHY_CR_TX_AMP_OFFSET_C_MASK, buf[2] << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_CR_TX_AMP_OFFSET_C_D,
> + MTK_PHY_CR_TX_AMP_OFFSET_D_MASK, buf[3]);
> +
> + return 0;
> +}
> +
> +static int tx_offset_cal_efuse(struct phy_device *phydev, u32 *buf)
> +{
> + u16 tx_offset_cal_val[4];
> +
> + tx_offset_cal_val[0] = EFS_DA_TX_AMP_OFFSET_A(buf[0]);
> + tx_offset_cal_val[1] = EFS_DA_TX_AMP_OFFSET_B(buf[1]);
> + tx_offset_cal_val[2] = EFS_DA_TX_AMP_OFFSET_C(buf[1]);
> + tx_offset_cal_val[3] = EFS_DA_TX_AMP_OFFSET_D(buf[1]);
> +
> + tx_offset_fill_result(phydev, tx_offset_cal_val);
> +
> + return 0;
> +}
> +
> +static int tx_amp_fill_result(struct phy_device *phydev, u16 *buf)
> +{
> + int i;
> + int bias[16] = {0};
> + const int vals_9461[16] = { 7, 1, 4, 7,
> + 7, 1, 4, 7,
> + 7, 1, 4, 7,
> + 7, 1, 4, 7 };
> + const int vals_9481[16] = { 10, 6, 6, 10,
> + 10, 6, 6, 10,
> + 10, 6, 6, 10,
> + 10, 6, 6, 10 };
> +
> + switch (phydev->drv->phy_id) {
> + case MTK_GPHY_ID_MT7981:
> + /* We add some calibration to efuse values
> + * due to board level influence.
> + * GBE: +7, TBT: +1, HBT: +4, TST: +7
> + */
> + memcpy(bias, (const void *)vals_9461, sizeof(bias));
> + for (i = 0; i <= 12; i += 4) {
> + if (likely(buf[i >> 2] + bias[i] >= 32)) {
> + bias[i] -= 13;
> + } else {
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1,
> + 0x5c, 0x7 << i, bias[i] << i);
> + bias[i + 1] += 13;
> + bias[i + 2] += 13;
> + bias[i + 3] += 13;
> + }
> + }
> + break;
> + case MTK_GPHY_ID_MT7988:
> + memcpy(bias, (const void *)vals_9481, sizeof(bias));
> + break;
> + default:
> + break;
> + }
> +
> + /* Prevent overflow */
> + for (i = 0; i < 12; i++) {
> + if (buf[i >> 2] + bias[i] > 63) {
> + buf[i >> 2] = 63;
> + bias[i] = 0;
> + } else if (buf[i >> 2] + bias[i] < 0) {
> + /* Bias caused by board design may change in the future.
> + * So check negative cases, too.
> + */
> + buf[i >> 2] = 0;
> + bias[i] = 0;
> + }
> + }
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TXVLD_DA_RG,
> + MTK_PHY_DA_TX_I2MPB_A_GBE_MASK, (buf[0] + bias[0]) << 10);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TXVLD_DA_RG,
> + MTK_PHY_DA_TX_I2MPB_A_TBT_MASK, buf[0] + bias[1]);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_A2,
> + MTK_PHY_DA_TX_I2MPB_A_HBT_MASK, (buf[0] + bias[2]) << 10);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_A2,
> + MTK_PHY_DA_TX_I2MPB_A_TST_MASK, buf[0] + bias[3]);
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_B1,
> + MTK_PHY_DA_TX_I2MPB_B_GBE_MASK, (buf[1] + bias[4]) << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_B1,
> + MTK_PHY_DA_TX_I2MPB_B_TBT_MASK, buf[1] + bias[5]);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_B2,
> + MTK_PHY_DA_TX_I2MPB_B_HBT_MASK, (buf[1] + bias[6]) << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_B2,
> + MTK_PHY_DA_TX_I2MPB_B_TST_MASK, buf[1] + bias[7]);
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_C1,
> + MTK_PHY_DA_TX_I2MPB_C_GBE_MASK, (buf[2] + bias[8]) << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_C1,
> + MTK_PHY_DA_TX_I2MPB_C_TBT_MASK, buf[2] + bias[9]);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_C2,
> + MTK_PHY_DA_TX_I2MPB_C_HBT_MASK, (buf[2] + bias[10]) << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_C2,
> + MTK_PHY_DA_TX_I2MPB_C_TST_MASK, buf[2] + bias[11]);
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_D1,
> + MTK_PHY_DA_TX_I2MPB_D_GBE_MASK, (buf[3] + bias[12]) << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_D1,
> + MTK_PHY_DA_TX_I2MPB_D_TBT_MASK, buf[3] + bias[13]);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_D2,
> + MTK_PHY_DA_TX_I2MPB_D_HBT_MASK, (buf[3] + bias[14]) << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_TX_I2MPB_TEST_MODE_D2,
> + MTK_PHY_DA_TX_I2MPB_D_TST_MASK, buf[3] + bias[15]);
> +
> + return 0;
> +}
> +
> +static int tx_amp_cal_efuse(struct phy_device *phydev, u32 *buf)
> +{
> + u16 tx_amp_cal_val[4];
> +
> + tx_amp_cal_val[0] = EFS_DA_TX_I2MPB_A(buf[0]);
> + tx_amp_cal_val[1] = EFS_DA_TX_I2MPB_B(buf[0]);
> + tx_amp_cal_val[2] = EFS_DA_TX_I2MPB_C(buf[0]);
> + tx_amp_cal_val[3] = EFS_DA_TX_I2MPB_D(buf[0]);
> + tx_amp_fill_result(phydev, tx_amp_cal_val);
> +
> + return 0;
> +}
> +
> +static int tx_r50_fill_result(struct phy_device *phydev, u16 tx_r50_cal_val,
> + u8 txg_calen_x)
> +{
> + int bias = 0;
> + u16 reg, val;
> +
> + if (phydev->drv->phy_id == MTK_GPHY_ID_MT7988)
> + bias = -2;
> +
> + val = clamp_val(bias + tx_r50_cal_val, 0, 63);
> +
> + switch (txg_calen_x) {
> + case PAIR_A:
> + reg = MTK_PHY_DA_TX_R50_PAIR_A;
> + break;
> + case PAIR_B:
> + reg = MTK_PHY_DA_TX_R50_PAIR_B;
> + break;
> + case PAIR_C:
> + reg = MTK_PHY_DA_TX_R50_PAIR_C;
> + break;
> + case PAIR_D:
> + reg = MTK_PHY_DA_TX_R50_PAIR_D;
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, reg, val | val << 8);
> +
> + return 0;
> +}
> +
> +static int tx_r50_cal_efuse(struct phy_device *phydev, u32 *buf,
> + u8 txg_calen_x)
> +{
> + u16 tx_r50_cal_val;
> +
> + switch (txg_calen_x) {
> + case PAIR_A:
> + tx_r50_cal_val = EFS_DA_TX_R50_A(buf[1]);
> + break;
> + case PAIR_B:
> + tx_r50_cal_val = EFS_DA_TX_R50_B(buf[1]);
> + break;
> + case PAIR_C:
> + tx_r50_cal_val = EFS_DA_TX_R50_C(buf[2]);
> + break;
> + case PAIR_D:
> + tx_r50_cal_val = EFS_DA_TX_R50_D(buf[2]);
> + break;
> + default:
> + return -EINVAL;
> + }
> + tx_r50_fill_result(phydev, tx_r50_cal_val, txg_calen_x);
> +
> + return 0;
> +}
> +
> +static int tx_vcm_cal_sw(struct phy_device *phydev, u8 rg_txreserve_x)
> +{
> + u8 lower_idx, upper_idx, txreserve_val;
> + u8 lower_ret, upper_ret;
> + int ret;
> +
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_ANA_CAL_RG0,
> + MTK_PHY_RG_ANA_CALEN);
> + phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_ANA_CAL_RG0,
> + MTK_PHY_RG_CAL_CKINV);
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_ANA_CAL_RG1,
> + MTK_PHY_RG_TXVOS_CALEN);
> +
> + /* Also clear bit[9:0] for MTK_PHY_RG_DASN_DAC_IN0/1_A/B/C/D */
> + switch (rg_txreserve_x) {
> + case PAIR_A:
> + phy_write_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DASN_DAC_IN0_A,
> + MTK_PHY_FORCE_DASN_DAC_IN0_A);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DASN_DAC_IN1_A,
> + MTK_PHY_FORCE_DASN_DAC_IN1_A);
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_ANA_CAL_RG0,
> + MTK_PHY_RG_ZCALEN_A);
> + break;
> + case PAIR_B:
> + phy_write_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DASN_DAC_IN0_B,
> + MTK_PHY_FORCE_DASN_DAC_IN0_B);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DASN_DAC_IN1_B,
> + MTK_PHY_FORCE_DASN_DAC_IN1_B);
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_ANA_CAL_RG1,
> + MTK_PHY_RG_ZCALEN_B);
> + break;
> + case PAIR_C:
> + phy_write_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DASN_DAC_IN0_C,
> + MTK_PHY_FORCE_DASN_DAC_IN0_C);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DASN_DAC_IN1_C,
> + MTK_PHY_FORCE_DASN_DAC_IN1_C);
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_ANA_CAL_RG1,
> + MTK_PHY_RG_ZCALEN_C);
> + break;
> + case PAIR_D:
> + phy_write_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DASN_DAC_IN0_D,
> + MTK_PHY_FORCE_DASN_DAC_IN0_D);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DASN_DAC_IN1_D,
> + MTK_PHY_FORCE_DASN_DAC_IN1_D);
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_ANA_CAL_RG1,
> + MTK_PHY_RG_ZCALEN_D);
> + break;
> + default:
> + ret = -EINVAL;
> + goto restore;
> + }
> +
> + lower_idx = TXRESERVE_MIN;
> + upper_idx = TXRESERVE_MAX;
> +
> + dev_dbg(&phydev->mdio.dev, "Start TX-VCM SW cal.\n");
> + while ((upper_idx - lower_idx) > 1) {
> + txreserve_val = DIV_ROUND_CLOSEST(lower_idx + upper_idx, 2);
> + ret = cal_cycle(phydev, MDIO_MMD_VEND1, MTK_PHY_RXADC_CTRL_RG9,
> + MTK_PHY_DA_RX_PSBN_TBT_MASK |
> + MTK_PHY_DA_RX_PSBN_HBT_MASK |
> + MTK_PHY_DA_RX_PSBN_GBE_MASK |
> + MTK_PHY_DA_RX_PSBN_LP_MASK,
> + txreserve_val << 12 | txreserve_val << 8 |
> + txreserve_val << 4 | txreserve_val);
> + if (ret == 1) {
> + upper_idx = txreserve_val;
> + upper_ret = ret;
> + } else if (ret == 0) {
> + lower_idx = txreserve_val;
> + lower_ret = ret;
> + } else {
> + goto restore;
> + }
> + }
> +
> + if (lower_idx == TXRESERVE_MIN) {
> + lower_ret = cal_cycle(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RXADC_CTRL_RG9,
> + MTK_PHY_DA_RX_PSBN_TBT_MASK |
> + MTK_PHY_DA_RX_PSBN_HBT_MASK |
> + MTK_PHY_DA_RX_PSBN_GBE_MASK |
> + MTK_PHY_DA_RX_PSBN_LP_MASK,
> + lower_idx << 12 | lower_idx << 8 |
> + lower_idx << 4 | lower_idx);
> + ret = lower_ret;
> + } else if (upper_idx == TXRESERVE_MAX) {
> + upper_ret = cal_cycle(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RXADC_CTRL_RG9,
> + MTK_PHY_DA_RX_PSBN_TBT_MASK |
> + MTK_PHY_DA_RX_PSBN_HBT_MASK |
> + MTK_PHY_DA_RX_PSBN_GBE_MASK |
> + MTK_PHY_DA_RX_PSBN_LP_MASK,
> + upper_idx << 12 | upper_idx << 8 |
> + upper_idx << 4 | upper_idx);
> + ret = upper_ret;
> + }
> + if (ret < 0)
> + goto restore;
> +
> + /* We calibrate TX-VCM in different logic. Check upper index and then
> + * lower index. If this calibration is valid, apply lower index's result.
> + */
> + ret = upper_ret - lower_ret;
> + if (ret == 1) {
> + ret = 0;
> + /* Make sure we use upper_idx in our calibration system */
> + cal_cycle(phydev, MDIO_MMD_VEND1, MTK_PHY_RXADC_CTRL_RG9,
> + MTK_PHY_DA_RX_PSBN_TBT_MASK |
> + MTK_PHY_DA_RX_PSBN_HBT_MASK |
> + MTK_PHY_DA_RX_PSBN_GBE_MASK |
> + MTK_PHY_DA_RX_PSBN_LP_MASK,
> + upper_idx << 12 | upper_idx << 8 |
> + upper_idx << 4 | upper_idx);
> + dev_dbg(&phydev->mdio.dev, "TX-VCM SW cal result: 0x%x\n",
> + upper_idx);
> + } else if (lower_idx == TXRESERVE_MIN && upper_ret == 1 &&
> + lower_ret == 1) {
> + ret = 0;
> + cal_cycle(phydev, MDIO_MMD_VEND1, MTK_PHY_RXADC_CTRL_RG9,
> + MTK_PHY_DA_RX_PSBN_TBT_MASK |
> + MTK_PHY_DA_RX_PSBN_HBT_MASK |
> + MTK_PHY_DA_RX_PSBN_GBE_MASK |
> + MTK_PHY_DA_RX_PSBN_LP_MASK,
> + lower_idx << 12 | lower_idx << 8 |
> + lower_idx << 4 | lower_idx);
> + dev_warn(&phydev->mdio.dev,
> + "TX-VCM SW cal result at low margin 0x%x\n",
> + lower_idx);
> + } else if (upper_idx == TXRESERVE_MAX && upper_ret == 0 &&
> + lower_ret == 0) {
> + ret = 0;
> + dev_warn(&phydev->mdio.dev,
> + "TX-VCM SW cal result at high margin 0x%x\n",
> + upper_idx);
> + } else {
> + ret = -EINVAL;
> + }
> +
> +restore:
> + phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_ANA_CAL_RG0,
> + MTK_PHY_RG_ANA_CALEN);
> + phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_ANA_CAL_RG1,
> + MTK_PHY_RG_TXVOS_CALEN);
> + phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_ANA_CAL_RG0,
> + MTK_PHY_RG_ZCALEN_A);
> + phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_ANA_CAL_RG1,
> + MTK_PHY_RG_ZCALEN_B | MTK_PHY_RG_ZCALEN_C |
> + MTK_PHY_RG_ZCALEN_D);
> +
> + return ret;
> +}
> +
> +static inline void mt798x_phy_common_finetune(struct phy_device *phydev)
> +{
> + u32 i;
> +
> + phy_select_page(phydev, MTK_PHY_PAGE_EXTENDED_52B5);
> + /* EnabRandUpdTrig = 1 */
> + __phy_write(phydev, 0x11, 0x2f00);
> + __phy_write(phydev, 0x12, 0xe);
> + __phy_write(phydev, 0x10, 0x8fb0);
> +
> + /* NormMseLoThresh = 85 */
> + __phy_write(phydev, 0x11, 0x55a0);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x83aa);
> +
> + /* InhibitDisableDfeTail1000 = 1 */
> + __phy_write(phydev, 0x11, 0x2b);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x8f80);
> +
> + /* SSTrKp1000Slv = 5 */
> + __phy_write(phydev, 0x11, 0xbaef);
> + __phy_write(phydev, 0x12, 0x2e);
> + __phy_write(phydev, 0x10, 0x968c);
> +
> + /* MrvlTrFix100Kp = 3, MrvlTrFix100Kf = 2,
> + * MrvlTrFix1000Kp = 3, MrvlTrFix1000Kf = 2
> + */
> + __phy_write(phydev, 0x11, 0xd10a);
> + __phy_write(phydev, 0x12, 0x34);
> + __phy_write(phydev, 0x10, 0x8f82);
> +
> + /* VcoSlicerThreshBitsHigh */
> + __phy_write(phydev, 0x11, 0x5555);
> + __phy_write(phydev, 0x12, 0x55);
> + __phy_write(phydev, 0x10, 0x8ec0);
> + phy_restore_page(phydev, MTK_PHY_PAGE_STANDARD, 0);
> +
> + /* rg_tr_lpf_cnt_val = 512 */
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LPF_CNT_VAL, 0x200);
> +
> + /* IIR2 related */
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K1_L, 0x82);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K1_U, 0x0);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K2_L, 0x103);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K2_U, 0x0);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K3_L, 0x82);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K3_U, 0x0);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K4_L, 0xd177);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K4_U, 0x3);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K5_L, 0x2c82);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_LP_IIR2_K5_U, 0xe);
> +
> + /* FFE peaking */
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG27C,
> + MTK_PHY_VGASTATE_FFE_THR_ST1_MASK, 0x1b << 8);
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG27D,
> + MTK_PHY_VGASTATE_FFE_THR_ST2_MASK, 0x1e);
> +
> + /* TX shape */
> + /* 10/100/1000 TX shaper is enabled by default */
> + for (i = 0x202; i < 0x230; i += 2) {
> + if (i == 0x20c || i == 0x218 || i == 0x224)
> + continue;
> + phy_write_mmd(phydev, MDIO_MMD_VEND2, i, 0x2219);
> + phy_write_mmd(phydev, MDIO_MMD_VEND2, i + 1, 0x23);
> + }
> +
> + /* Disable LDO pump */
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_LDO_PUMP_EN_PAIRAB, 0x0);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_LDO_PUMP_EN_PAIRCD, 0x0);
> + /* Adjust LDO output voltage */
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_LDO_OUTPUT_V, 0x2222);
> +}
> +
> +static inline void mt7981_phy_finetune(struct phy_device *phydev)
> +{
> + /* 100M eye finetune:
> + * Keep middle level of TX MLT3 shapper as default.
> + * Only change TX MLT3 overshoot level here.
> + */
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_1st_OVERSHOOT_LEVEL_0TO1,
> + 0x1ce);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_2nd_OVERSHOOT_LEVEL_0TO1,
> + 0x1c1);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_1st_OVERSHOOT_LEVEL_1TO0,
> + 0x20f);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_2nd_OVERSHOOT_LEVEL_1TO0,
> + 0x202);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_1st_OVERSHOOT_LEVEL_0TON1,
> + 0x3d0);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_2nd_OVERSHOOT_LEVEL_0TON1,
> + 0x3c0);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_1st_OVERSHOOT_LEVEL_N1TO0,
> + 0x13);
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_2nd_OVERSHOOT_LEVEL_N1TO0,
> + 0x5);
> +
> + phy_select_page(phydev, MTK_PHY_PAGE_EXTENDED_52B5);
> + /* SlvDSPreadyTime = 24, MasDSPreadyTime = 24 */
> + __phy_write(phydev, 0x11, 0xc71);
> + __phy_write(phydev, 0x12, 0xc);
> + __phy_write(phydev, 0x10, 0x8fae);
> +
> + /* TrFreeze = 0 */
> + __phy_write(phydev, 0x11, 0x0);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x9686);
> +
> + /* ResetSyncOffset = 6 */
> + __phy_write(phydev, 0x11, 0x600);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x8fc0);
> +
> + /* VgaDecRate = 1 */
> + __phy_write(phydev, 0x11, 0x4c2a);
> + __phy_write(phydev, 0x12, 0x3e);
> + __phy_write(phydev, 0x10, 0x8fa4);
> +
> + /* FfeUpdGainForce = 4 */
> + __phy_write(phydev, 0x11, 0x240);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x9680);
> +
> + phy_restore_page(phydev, MTK_PHY_PAGE_STANDARD, 0);
> + /* TR_OPEN_LOOP_EN = 1, lpf_x_average = 9*/
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG234,
> + MTK_PHY_TR_OPEN_LOOP_EN_MASK | MTK_PHY_LPF_X_AVERAGE_MASK,
> + BIT(0) | FIELD_PREP(MTK_PHY_LPF_X_AVERAGE_MASK, 0x9));
> +}
> +
> +static inline void mt7988_phy_finetune(struct phy_device *phydev)
> +{
> + u16 val[12] = { 0x0187, 0x01cd, 0x01c8, 0x0182,
> + 0x020d, 0x0206, 0x0384, 0x03d0,
> + 0x03c6, 0x030a, 0x0011, 0x0005 };
> + int i;
> +
> + for (i = MTK_PHY_MIDDLE_LEVEL_SHAPPER_0TO1;
> + i <= MTK_PHY_2nd_OVERSHOOT_LEVEL_N1TO0; i++)
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, i, val[i]);
> +
> + /* TCT finetune */
> + phy_write_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_TX_FILTER, 0x5);
> +
> + /* Disable TX power saving */
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RXADC_CTRL_RG7,
> + MTK_PHY_DA_AD_BUF_BIAS_LP_MASK, 0x3 << 8);
> +
> + phy_select_page(phydev, MTK_PHY_PAGE_EXTENDED_52B5);
> +
> + /* SlvDSPreadyTime = 24, MasDSPreadyTime = 12 */
> + __phy_write(phydev, 0x11, 0x671);
> + __phy_write(phydev, 0x12, 0xc);
> + __phy_write(phydev, 0x10, 0x8fae);
> +
> + /* ResetSyncOffset = 5 */
> + __phy_write(phydev, 0x11, 0x500);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x8fc0);
> + phy_restore_page(phydev, MTK_PHY_PAGE_STANDARD, 0);
> +
> + phy_select_page(phydev, MTK_PHY_PAGE_EXTENDED_2A30);
> + /* TxClkOffset = 2 */
> + __phy_modify(phydev, MTK_PHY_ANARG_RG, MTK_PHY_TCLKOFFSET_MASK,
> + FIELD_PREP(MTK_PHY_TCLKOFFSET_MASK, 0x2));
> + phy_restore_page(phydev, MTK_PHY_PAGE_STANDARD, 0);
> +
> + /* TR_OPEN_LOOP_EN = 1, lpf_x_average = 9*/
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG234,
> + MTK_PHY_TR_OPEN_LOOP_EN_MASK | MTK_PHY_LPF_X_AVERAGE_MASK,
> + BIT(0) | FIELD_PREP(MTK_PHY_LPF_X_AVERAGE_MASK, 0x9));
> +}
> +
> +static inline void mt798x_phy_eee(struct phy_device *phydev)
> +{
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_LPI_PCS_DSP_CTRL_REG120,
> + MTK_PHY_LPI_SIG_EN_LO_THRESH1000_MASK |
> + MTK_PHY_LPI_SIG_EN_HI_THRESH1000_MASK,
> + FIELD_PREP(MTK_PHY_LPI_SIG_EN_LO_THRESH1000_MASK, 0x0) |
> + FIELD_PREP(MTK_PHY_LPI_SIG_EN_HI_THRESH1000_MASK, 0x14));
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_LPI_PCS_DSP_CTRL_REG122,
> + MTK_PHY_LPI_NORM_MSE_HI_THRESH1000_MASK,
> + FIELD_PREP(MTK_PHY_LPI_NORM_MSE_HI_THRESH1000_MASK,
> + 0xff));
> +
> + phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_TESTMUX_ADC_CTRL,
> + MTK_PHY_RG_TXEN_DIG_MASK);
> +
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DEV1E_REG19b, MTK_PHY_BYPASS_DSP_LPI_READY);
> +
> + phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_DEV1E_REG234, MTK_PHY_TR_LP_IIR_EEE_EN);
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG238,
> + MTK_PHY_LPI_SLV_SEND_TX_TIMER_MASK |
> + MTK_PHY_LPI_SLV_SEND_TX_EN,
> + FIELD_PREP(MTK_PHY_LPI_SLV_SEND_TX_TIMER_MASK, 0x120));
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG239,
> + MTK_PHY_LPI_SEND_LOC_TIMER_MASK |
> + MTK_PHY_LPI_TXPCS_LOC_RCV,
> + FIELD_PREP(MTK_PHY_LPI_SEND_LOC_TIMER_MASK, 0x117));
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG2C7,
> + MTK_PHY_MAX_GAIN_MASK | MTK_PHY_MIN_GAIN_MASK,
> + FIELD_PREP(MTK_PHY_MAX_GAIN_MASK, 0x8) |
> + FIELD_PREP(MTK_PHY_MIN_GAIN_MASK, 0x13));
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG2D1,
> + MTK_PHY_VCO_SLICER_THRESH_BITS_HIGH_EEE_MASK,
> + FIELD_PREP(MTK_PHY_VCO_SLICER_THRESH_BITS_HIGH_EEE_MASK,
> + 0x33) |
> + MTK_PHY_LPI_SKIP_SD_SLV_TR | MTK_PHY_LPI_TR_READY |
> + MTK_PHY_LPI_VCO_EEE_STG0_EN);
> +
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG323,
> + MTK_PHY_EEE_WAKE_MAS_INT_DC |
> + MTK_PHY_EEE_WAKE_SLV_INT_DC);
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG324,
> + MTK_PHY_SMI_DETCNT_MAX_MASK,
> + FIELD_PREP(MTK_PHY_SMI_DETCNT_MAX_MASK, 0x3f) |
> + MTK_PHY_SMI_DET_MAX_EN);
> +
> + phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_DEV1E_REG326,
> + MTK_PHY_LPI_MODE_SD_ON | MTK_PHY_RESET_RANDUPD_CNT |
> + MTK_PHY_TREC_UPDATE_ENAB_CLR |
> + MTK_PHY_LPI_QUIT_WAIT_DFE_SIG_DET_OFF |
> + MTK_PHY_TR_READY_SKIP_AFE_WAKEUP);
> +
> + phy_select_page(phydev, MTK_PHY_PAGE_EXTENDED_52B5);
> + /* Regsigdet_sel_1000 = 0 */
> + __phy_write(phydev, 0x11, 0xb);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x9690);
> +
> + /* REG_EEE_st2TrKf1000 = 3 */
> + __phy_write(phydev, 0x11, 0x114f);
> + __phy_write(phydev, 0x12, 0x2);
> + __phy_write(phydev, 0x10, 0x969a);
> +
> + /* RegEEE_slv_wake_tr_timer_tar = 6, RegEEE_slv_remtx_timer_tar = 20 */
> + __phy_write(phydev, 0x11, 0x3028);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x969e);
> +
> + /* RegEEE_slv_wake_int_timer_tar = 8 */
> + __phy_write(phydev, 0x11, 0x5010);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x96a0);
> +
> + /* RegEEE_trfreeze_timer2 = 586 */
> + __phy_write(phydev, 0x11, 0x24a);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x96a8);
> +
> + /* RegEEE100Stg1_tar = 16 */
> + __phy_write(phydev, 0x11, 0x3210);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x96b8);
> +
> + /* REGEEE_wake_slv_tr_wait_dfesigdet_en = 1 */
> + __phy_write(phydev, 0x11, 0x1463);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x96ca);
> +
> + /* DfeTailEnableVgaThresh1000 = 27 */
> + __phy_write(phydev, 0x11, 0x36);
> + __phy_write(phydev, 0x12, 0x0);
> + __phy_write(phydev, 0x10, 0x8f80);
> + phy_restore_page(phydev, MTK_PHY_PAGE_STANDARD, 0);
> +
> + phy_select_page(phydev, MTK_PHY_PAGE_EXTENDED_3);
> + __phy_modify(phydev, MTK_PHY_LPI_REG_14, MTK_PHY_LPI_WAKE_TIMER_1000_MASK,
> + FIELD_PREP(MTK_PHY_LPI_WAKE_TIMER_1000_MASK, 0x19c));
> +
> + __phy_modify(phydev, MTK_PHY_LPI_REG_1c, MTK_PHY_SMI_DET_ON_THRESH_MASK,
> + FIELD_PREP(MTK_PHY_SMI_DET_ON_THRESH_MASK, 0xc));
> + phy_restore_page(phydev, MTK_PHY_PAGE_STANDARD, 0);
> +
> + phy_modify_mmd(phydev, MDIO_MMD_VEND1,
> + MTK_PHY_RG_LPI_PCS_DSP_CTRL_REG122,
> + MTK_PHY_LPI_NORM_MSE_HI_THRESH1000_MASK,
> + FIELD_PREP(MTK_PHY_LPI_NORM_MSE_HI_THRESH1000_MASK, 0xff));
> +}
> +
> +static inline int cal_sw(struct phy_device *phydev, enum CAL_ITEM cal_item,
> + u8 start_pair, u8 end_pair)
> +{
> + u8 pair_n;
> + int ret;
> +
> + for (pair_n = start_pair; pair_n <= end_pair; pair_n++) {
> + /* TX_OFFSET & TX_AMP have no SW calibration. */
> + switch (cal_item) {
> + case TX_VCM:
> + ret = tx_vcm_cal_sw(phydev, pair_n);
> + break;
> + default:
> + return -EINVAL;
> + }
> + if (ret)
> + return ret;
> + }
> + return 0;
> +}
> +
> +static inline int cal_efuse(struct phy_device *phydev, enum CAL_ITEM cal_item,
> + u8 start_pair, u8 end_pair, u32 *buf)
> +{
> + u8 pair_n;
> + int ret;
> +
> + for (pair_n = start_pair; pair_n <= end_pair; pair_n++) {
> + /* TX_VCM has no efuse calibration. */
> + switch (cal_item) {
> + case REXT:
> + ret = rext_cal_efuse(phydev, buf);
> + break;
> + case TX_OFFSET:
> + ret = tx_offset_cal_efuse(phydev, buf);
> + break;
> + case TX_AMP:
> + ret = tx_amp_cal_efuse(phydev, buf);
> + break;
> + case TX_R50:
> + ret = tx_r50_cal_efuse(phydev, buf, pair_n);
> + break;
> + default:
> + return -EINVAL;
> + }
> + if (ret)
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +static int start_cal(struct phy_device *phydev, enum CAL_ITEM cal_item,
> + enum CAL_MODE cal_mode, u8 start_pair,
> + u8 end_pair, u32 *buf)
> +{
> + int ret;
> + char cal_prop[5][20] = { "mediatek,rext", "mediatek,tx_offset",
> + "mediatek,tx_amp", "mediatek,tx_r50",
> + "mediatek,tx_vcm" };
> +
> + switch (cal_mode) {
> + case EFUSE_M:
> + ret = cal_efuse(phydev, cal_item, start_pair,
> + end_pair, buf);
> + break;
> + case SW_M:
> + ret = cal_sw(phydev, cal_item, start_pair, end_pair);
> + break;
> + default:
> + return -EINVAL;
> + }
> +
> + if (ret) {
> + dev_err(&phydev->mdio.dev, "[%s]cal failed\n", cal_prop[cal_item]);
> + return -EIO;
> + }
> +
> + return 0;
> +}
> +
> +static int mt798x_phy_calibration(struct phy_device *phydev)
> +{
> + int ret = 0;
> + u32 *buf;
> + size_t len;
> + struct nvmem_cell *cell;
> +
> + if (phydev->interface != PHY_INTERFACE_MODE_GMII)
> + return -EINVAL;
> +
> + cell = nvmem_cell_get(&phydev->mdio.dev, "phy-cal-data");
> + if (IS_ERR(cell)) {
> + if (PTR_ERR(cell) == -EPROBE_DEFER)
> + return PTR_ERR(cell);
> + return 0;
> + }
> +
> + buf = (u32 *)nvmem_cell_read(cell, &len);
> + if (IS_ERR(buf))
> + return PTR_ERR(buf);
> + nvmem_cell_put(cell);
> +
> + if (!buf[0] || !buf[1] || !buf[2] || !buf[3] || len < 4 * sizeof(u32)) {
> + dev_err(&phydev->mdio.dev, "invalid efuse data\n");
> + ret = -EINVAL;
> + goto out;
> + }
> +
> + ret = start_cal(phydev, REXT, EFUSE_M, NO_PAIR, NO_PAIR, buf);
> + if (ret)
> + goto out;
> + ret = start_cal(phydev, TX_OFFSET, EFUSE_M, NO_PAIR, NO_PAIR, buf);
> + if (ret)
> + goto out;
> + ret = start_cal(phydev, TX_AMP, EFUSE_M, NO_PAIR, NO_PAIR, buf);
> + if (ret)
> + goto out;
> + ret = start_cal(phydev, TX_R50, EFUSE_M, PAIR_A, PAIR_D, buf);
> + if (ret)
> + goto out;
> + ret = start_cal(phydev, TX_VCM, SW_M, PAIR_A, PAIR_A, buf);
> + if (ret)
> + goto out;
> +
> +out:
> + kfree(buf);
> + return ret;
> +}
> +
> +static int mt7981_phy_probe(struct phy_device *phydev)
> +{
> + mt798x_phy_common_finetune(phydev);
> + mt7981_phy_finetune(phydev);
> + mt798x_phy_eee(phydev);
> +
> + return mt798x_phy_calibration(phydev);

Not sure whether it can happen on your hw, but we have other cases
where PHY is powered down during suspend/resume.
So it may be better to do all this configuration in config_init().
Or do you have to do it earlier for some reason?

> +}
> +
> +static int mt7988_phy_probe(struct phy_device *phydev)
> +{
> + mt798x_phy_common_finetune(phydev);
> + mt7988_phy_finetune(phydev);
> + mt798x_phy_eee(phydev);
> +
> + return mt798x_phy_calibration(phydev);
> +}
> +#endif
> +
> static struct phy_driver mtk_gephy_driver[] = {
> {
> - PHY_ID_MATCH_EXACT(0x03a29412),
> + PHY_ID_MATCH_EXACT(MTK_GPHY_ID_MT7530),
> .name = "MediaTek MT7530 PHY",
> .config_init = mt7530_phy_config_init,
> /* Interrupts are handled by the switch, not the PHY
> @@ -84,7 +1205,7 @@ static struct phy_driver mtk_gephy_driver[] = {
> .write_page = mtk_gephy_write_page,
> },
> {
> - PHY_ID_MATCH_EXACT(0x03a29441),
> + PHY_ID_MATCH_EXACT(MTK_GPHY_ID_MT7531),
> .name = "MediaTek MT7531 PHY",
> .config_init = mt7531_phy_config_init,
> /* Interrupts are handled by the switch, not the PHY
> @@ -97,16 +1218,42 @@ static struct phy_driver mtk_gephy_driver[] = {
> .read_page = mtk_gephy_read_page,
> .write_page = mtk_gephy_write_page,
> },
> +#if IS_ENABLED(CONFIG_MEDIATEK_GE_PHY_SOC)
> + {
> + PHY_ID_MATCH_EXACT(MTK_GPHY_ID_MT7981),
> + .name = "MediaTek MT7981 PHY",
> + .probe = mt7981_phy_probe,
> + .config_intr = genphy_no_config_intr,
> + .handle_interrupt = genphy_handle_interrupt_no_ack,
> + .suspend = genphy_suspend,
> + .resume = genphy_resume,
> + .read_page = mtk_gephy_read_page,
> + .write_page = mtk_gephy_write_page,
> + },
> + {
> + PHY_ID_MATCH_EXACT(MTK_GPHY_ID_MT7988),
> + .name = "MediaTek MT7988 PHY",
> + .probe = mt7988_phy_probe,
> + .config_intr = genphy_no_config_intr,
> + .handle_interrupt = genphy_handle_interrupt_no_ack,
> + .suspend = genphy_suspend,
> + .resume = genphy_resume,
> + .read_page = mtk_gephy_read_page,
> + .write_page = mtk_gephy_write_page,
> + },
> +#endif
> };
>
> module_phy_driver(mtk_gephy_driver);
>
> static struct mdio_device_id __maybe_unused mtk_gephy_tbl[] = {
> - { PHY_ID_MATCH_VENDOR(0x03a29400) },
> + { PHY_ID_MATCH_VENDOR(MTK_GPHY_ID_VENDOR) },
> { }
> };
>
> MODULE_DESCRIPTION("MediaTek Gigabit Ethernet PHY driver");
> +MODULE_AUTHOR("Daniel Golle <daniel@xxxxxxxxxxxxxx>");
> +MODULE_AUTHOR("SkyLake Huang <SkyLake.Huang@xxxxxxxxxxxx>");
> MODULE_AUTHOR("DENG, Qingfang <dqfext@xxxxxxxxx>");
> MODULE_LICENSE("GPL");
>

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