From nobody Fri Sep 20 20:39:03 2024 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0C3E9C77B61 for ; Fri, 14 Apr 2023 00:43:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229708AbjDNAnS (ORCPT ); Thu, 13 Apr 2023 20:43:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60100 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229469AbjDNAnP (ORCPT ); Thu, 13 Apr 2023 20:43:15 -0400 Received: from fudo.makrotopia.org (fudo.makrotopia.org [IPv6:2a07:2ec0:3002::71]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8680E268B; Thu, 13 Apr 2023 17:43:09 -0700 (PDT) Received: from local by fudo.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.96) (envelope-from ) id 1pn7Wo-0005Kg-1c; Fri, 14 Apr 2023 02:43:02 +0200 Date: Fri, 14 Apr 2023 01:42:53 +0100 From: Daniel Golle To: netdev@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Qingfang Deng , SkyLake Huang , Matthias Brugger , AngeloGioacchino Del Regno , John Crispin Subject: [PATCH net-next] net: phy: add driver for MediaTek SoC built-in GE PHYs Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 --- MAINTAINERS | 8 + drivers/net/phy/Kconfig | 12 + drivers/net/phy/mediatek-ge.c | 1153 ++++++++++++++++++++++++++++++++- 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 =20 +MEDIATEK ETHERNET PHY DRIVERS +M: Daniel Golle +M: Qingfang Deng +M: SkyLake Huang +L: netdev@vger.kernel.org +S: Maintained +F: drivers/net/phy/mediatek-ge.c + MEDIATEK I2C CONTROLLER DRIVER M: Qii Wang L: linux-i2c@vger.kernel.org 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. =20 +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 #include +#include +#include +#include #include =20 +#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 =20 +#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 *p= hydev) return 0; } =20 +#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 =3D 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"); + return ret; + } + + phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, MTK_PHY_RG_AD_CALIN, + MTK_PHY_DA_CALIN_FLAG); + ret =3D 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] =3D EFS_RG_REXT_TRIM(buf[3]); + rext_cal_val[1] =3D 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] =3D EFS_DA_TX_AMP_OFFSET_A(buf[0]); + tx_offset_cal_val[1] =3D EFS_DA_TX_AMP_OFFSET_B(buf[1]); + tx_offset_cal_val[2] =3D EFS_DA_TX_AMP_OFFSET_C(buf[1]); + tx_offset_cal_val[3] =3D 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] =3D {0}; + const int vals_9461[16] =3D { 7, 1, 4, 7, + 7, 1, 4, 7, + 7, 1, 4, 7, + 7, 1, 4, 7 }; + const int vals_9481[16] =3D { 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 =3D 0; i <=3D 12; i +=3D 4) { + if (likely(buf[i >> 2] + bias[i] >=3D 32)) { + bias[i] -=3D 13; + } else { + phy_modify_mmd(phydev, MDIO_MMD_VEND1, + 0x5c, 0x7 << i, bias[i] << i); + bias[i + 1] +=3D 13; + bias[i + 2] +=3D 13; + bias[i + 3] +=3D 13; + } + } + break; + case MTK_GPHY_ID_MT7988: + memcpy(bias, (const void *)vals_9481, sizeof(bias)); + break; + default: + break; + } + + /* Prevent overflow */ + for (i =3D 0; i < 12; i++) { + if (buf[i >> 2] + bias[i] > 63) { + buf[i >> 2] =3D 63; + bias[i] =3D 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] =3D 0; + bias[i] =3D 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] =3D EFS_DA_TX_I2MPB_A(buf[0]); + tx_amp_cal_val[1] =3D EFS_DA_TX_I2MPB_B(buf[0]); + tx_amp_cal_val[2] =3D EFS_DA_TX_I2MPB_C(buf[0]); + tx_amp_cal_val[3] =3D 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_va= l, + u8 txg_calen_x) +{ + int bias =3D 0; + u16 reg, val; + + if (phydev->drv->phy_id =3D=3D MTK_GPHY_ID_MT7988) + bias =3D -2; + + val =3D clamp_val(bias + tx_r50_cal_val, 0, 63); + + switch (txg_calen_x) { + case PAIR_A: + reg =3D MTK_PHY_DA_TX_R50_PAIR_A; + break; + case PAIR_B: + reg =3D MTK_PHY_DA_TX_R50_PAIR_B; + break; + case PAIR_C: + reg =3D MTK_PHY_DA_TX_R50_PAIR_C; + break; + case PAIR_D: + reg =3D 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 =3D EFS_DA_TX_R50_A(buf[1]); + break; + case PAIR_B: + tx_r50_cal_val =3D EFS_DA_TX_R50_B(buf[1]); + break; + case PAIR_C: + tx_r50_cal_val =3D EFS_DA_TX_R50_C(buf[2]); + break; + case PAIR_D: + tx_r50_cal_val =3D 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 =3D -EINVAL; + goto restore; + } + + lower_idx =3D TXRESERVE_MIN; + upper_idx =3D TXRESERVE_MAX; + + dev_dbg(&phydev->mdio.dev, "Start TX-VCM SW cal.\n"); + while ((upper_idx - lower_idx) > 1) { + txreserve_val =3D DIV_ROUND_CLOSEST(lower_idx + upper_idx, 2); + ret =3D 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 =3D=3D 1) { + upper_idx =3D txreserve_val; + upper_ret =3D ret; + } else if (ret =3D=3D 0) { + lower_idx =3D txreserve_val; + lower_ret =3D ret; + } else { + goto restore; + } + } + + if (lower_idx =3D=3D TXRESERVE_MIN) { + lower_ret =3D 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 =3D lower_ret; + } else if (upper_idx =3D=3D TXRESERVE_MAX) { + upper_ret =3D 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 =3D 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 =3D upper_ret - lower_ret; + if (ret =3D=3D 1) { + ret =3D 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 =3D=3D TXRESERVE_MIN && upper_ret =3D=3D 1 && + lower_ret =3D=3D 1) { + ret =3D 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 =3D=3D TXRESERVE_MAX && upper_ret =3D=3D 0 && + lower_ret =3D=3D 0) { + ret =3D 0; + dev_warn(&phydev->mdio.dev, + "TX-VCM SW cal result at high margin 0x%x\n", + upper_idx); + } else { + ret =3D -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 =3D 1 */ + __phy_write(phydev, 0x11, 0x2f00); + __phy_write(phydev, 0x12, 0xe); + __phy_write(phydev, 0x10, 0x8fb0); + + /* NormMseLoThresh =3D 85 */ + __phy_write(phydev, 0x11, 0x55a0); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x83aa); + + /* InhibitDisableDfeTail1000 =3D 1 */ + __phy_write(phydev, 0x11, 0x2b); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x8f80); + + /* SSTrKp1000Slv =3D 5 */ + __phy_write(phydev, 0x11, 0xbaef); + __phy_write(phydev, 0x12, 0x2e); + __phy_write(phydev, 0x10, 0x968c); + + /* MrvlTrFix100Kp =3D 3, MrvlTrFix100Kf =3D 2, + * MrvlTrFix1000Kp =3D 3, MrvlTrFix1000Kf =3D 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 =3D 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 =3D 0x202; i < 0x230; i +=3D 2) { + if (i =3D=3D 0x20c || i =3D=3D 0x218 || i =3D=3D 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 =3D 24, MasDSPreadyTime =3D 24 */ + __phy_write(phydev, 0x11, 0xc71); + __phy_write(phydev, 0x12, 0xc); + __phy_write(phydev, 0x10, 0x8fae); + + /* TrFreeze =3D 0 */ + __phy_write(phydev, 0x11, 0x0); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x9686); + + /* ResetSyncOffset =3D 6 */ + __phy_write(phydev, 0x11, 0x600); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x8fc0); + + /* VgaDecRate =3D 1 */ + __phy_write(phydev, 0x11, 0x4c2a); + __phy_write(phydev, 0x12, 0x3e); + __phy_write(phydev, 0x10, 0x8fa4); + + /* FfeUpdGainForce =3D 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 =3D 1, lpf_x_average =3D 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] =3D { 0x0187, 0x01cd, 0x01c8, 0x0182, + 0x020d, 0x0206, 0x0384, 0x03d0, + 0x03c6, 0x030a, 0x0011, 0x0005 }; + int i; + + for (i =3D MTK_PHY_MIDDLE_LEVEL_SHAPPER_0TO1; + i <=3D 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 =3D 24, MasDSPreadyTime =3D 12 */ + __phy_write(phydev, 0x11, 0x671); + __phy_write(phydev, 0x12, 0xc); + __phy_write(phydev, 0x10, 0x8fae); + + /* ResetSyncOffset =3D 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 =3D 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 =3D 1, lpf_x_average =3D 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 =3D 0 */ + __phy_write(phydev, 0x11, 0xb); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x9690); + + /* REG_EEE_st2TrKf1000 =3D 3 */ + __phy_write(phydev, 0x11, 0x114f); + __phy_write(phydev, 0x12, 0x2); + __phy_write(phydev, 0x10, 0x969a); + + /* RegEEE_slv_wake_tr_timer_tar =3D 6, RegEEE_slv_remtx_timer_tar =3D 20 = */ + __phy_write(phydev, 0x11, 0x3028); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x969e); + + /* RegEEE_slv_wake_int_timer_tar =3D 8 */ + __phy_write(phydev, 0x11, 0x5010); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x96a0); + + /* RegEEE_trfreeze_timer2 =3D 586 */ + __phy_write(phydev, 0x11, 0x24a); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x96a8); + + /* RegEEE100Stg1_tar =3D 16 */ + __phy_write(phydev, 0x11, 0x3210); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x96b8); + + /* REGEEE_wake_slv_tr_wait_dfesigdet_en =3D 1 */ + __phy_write(phydev, 0x11, 0x1463); + __phy_write(phydev, 0x12, 0x0); + __phy_write(phydev, 0x10, 0x96ca); + + /* DfeTailEnableVgaThresh1000 =3D 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 =3D start_pair; pair_n <=3D end_pair; pair_n++) { + /* TX_OFFSET & TX_AMP have no SW calibration. */ + switch (cal_item) { + case TX_VCM: + ret =3D 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_i= tem, + u8 start_pair, u8 end_pair, u32 *buf) +{ + u8 pair_n; + int ret; + + for (pair_n =3D start_pair; pair_n <=3D end_pair; pair_n++) { + /* TX_VCM has no efuse calibration. */ + switch (cal_item) { + case REXT: + ret =3D rext_cal_efuse(phydev, buf); + break; + case TX_OFFSET: + ret =3D tx_offset_cal_efuse(phydev, buf); + break; + case TX_AMP: + ret =3D tx_amp_cal_efuse(phydev, buf); + break; + case TX_R50: + ret =3D 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] =3D { "mediatek,rext", "mediatek,tx_offset", + "mediatek,tx_amp", "mediatek,tx_r50", + "mediatek,tx_vcm" }; + + switch (cal_mode) { + case EFUSE_M: + ret =3D cal_efuse(phydev, cal_item, start_pair, + end_pair, buf); + break; + case SW_M: + ret =3D 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 =3D 0; + u32 *buf; + size_t len; + struct nvmem_cell *cell; + + if (phydev->interface !=3D PHY_INTERFACE_MODE_GMII) + return -EINVAL; + + cell =3D nvmem_cell_get(&phydev->mdio.dev, "phy-cal-data"); + if (IS_ERR(cell)) { + if (PTR_ERR(cell) =3D=3D -EPROBE_DEFER) + return PTR_ERR(cell); + return 0; + } + + buf =3D (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 =3D -EINVAL; + goto out; + } + + ret =3D start_cal(phydev, REXT, EFUSE_M, NO_PAIR, NO_PAIR, buf); + if (ret) + goto out; + ret =3D start_cal(phydev, TX_OFFSET, EFUSE_M, NO_PAIR, NO_PAIR, buf); + if (ret) + goto out; + ret =3D start_cal(phydev, TX_AMP, EFUSE_M, NO_PAIR, NO_PAIR, buf); + if (ret) + goto out; + ret =3D start_cal(phydev, TX_R50, EFUSE_M, PAIR_A, PAIR_D, buf); + if (ret) + goto out; + ret =3D 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); +} + +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[] =3D { { - PHY_ID_MATCH_EXACT(0x03a29412), + PHY_ID_MATCH_EXACT(MTK_GPHY_ID_MT7530), .name =3D "MediaTek MT7530 PHY", .config_init =3D mt7530_phy_config_init, /* Interrupts are handled by the switch, not the PHY @@ -84,7 +1205,7 @@ static struct phy_driver mtk_gephy_driver[] =3D { .write_page =3D mtk_gephy_write_page, }, { - PHY_ID_MATCH_EXACT(0x03a29441), + PHY_ID_MATCH_EXACT(MTK_GPHY_ID_MT7531), .name =3D "MediaTek MT7531 PHY", .config_init =3D mt7531_phy_config_init, /* Interrupts are handled by the switch, not the PHY @@ -97,16 +1218,42 @@ static struct phy_driver mtk_gephy_driver[] =3D { .read_page =3D mtk_gephy_read_page, .write_page =3D mtk_gephy_write_page, }, +#if IS_ENABLED(CONFIG_MEDIATEK_GE_PHY_SOC) + { + PHY_ID_MATCH_EXACT(MTK_GPHY_ID_MT7981), + .name =3D "MediaTek MT7981 PHY", + .probe =3D mt7981_phy_probe, + .config_intr =3D genphy_no_config_intr, + .handle_interrupt =3D genphy_handle_interrupt_no_ack, + .suspend =3D genphy_suspend, + .resume =3D genphy_resume, + .read_page =3D mtk_gephy_read_page, + .write_page =3D mtk_gephy_write_page, + }, + { + PHY_ID_MATCH_EXACT(MTK_GPHY_ID_MT7988), + .name =3D "MediaTek MT7988 PHY", + .probe =3D mt7988_phy_probe, + .config_intr =3D genphy_no_config_intr, + .handle_interrupt =3D genphy_handle_interrupt_no_ack, + .suspend =3D genphy_suspend, + .resume =3D genphy_resume, + .read_page =3D mtk_gephy_read_page, + .write_page =3D mtk_gephy_write_page, + }, +#endif }; =20 module_phy_driver(mtk_gephy_driver); =20 static struct mdio_device_id __maybe_unused mtk_gephy_tbl[] =3D { - { PHY_ID_MATCH_VENDOR(0x03a29400) }, + { PHY_ID_MATCH_VENDOR(MTK_GPHY_ID_VENDOR) }, { } }; =20 MODULE_DESCRIPTION("MediaTek Gigabit Ethernet PHY driver"); +MODULE_AUTHOR("Daniel Golle "); +MODULE_AUTHOR("SkyLake Huang "); MODULE_AUTHOR("DENG, Qingfang "); MODULE_LICENSE("GPL"); =20 --=20 2.40.0