// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2015 MediaTek Inc. * Author: Chunfeng Yun * */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* version V1 sub-banks offset base address */ /* banks shared by multiple phys */ #define SSUSB_SIFSLV_V1_SPLLC 0x000 /* shared by u3 phys */ #define SSUSB_SIFSLV_V1_U2FREQ 0x100 /* shared by u2 phys */ #define SSUSB_SIFSLV_V1_CHIP 0x300 /* shared by u3 phys */ /* u2 phy bank */ #define SSUSB_SIFSLV_V1_U2PHY_COM 0x000 /* u3/pcie/sata phy banks */ #define SSUSB_SIFSLV_V1_U3PHYD 0x000 #define SSUSB_SIFSLV_V1_U3PHYA 0x200 /* version V2 sub-banks offset base address */ /* u2 phy banks */ #define SSUSB_SIFSLV_V2_MISC 0x000 #define SSUSB_SIFSLV_V2_U2FREQ 0x100 #define SSUSB_SIFSLV_V2_U2PHY_COM 0x300 /* u3/pcie/sata phy banks */ #define SSUSB_SIFSLV_V2_SPLLC 0x000 #define SSUSB_SIFSLV_V2_CHIP 0x100 #define SSUSB_SIFSLV_V2_U3PHYD 0x200 #define SSUSB_SIFSLV_V2_U3PHYA 0x400 #define U3P_USBPHYACR0 0x000 #define PA0_RG_U2PLL_FORCE_ON BIT(15) #define PA0_RG_USB20_INTR_EN BIT(5) #ifdef CONFIG_SAMSUNG_PHY_TUNE #define PA0_RG_USB20_INTR_EN_VAL(x) ((0x1 & (x)) << 5) #define PA0_RG_USB20_INTR_EN_MASK (0x1) #define PA0_RG_USB20_INTR_EN_OFST (5) #define PA0_RG_BGR_EN BIT(0) #define PA0_RG_BGR_EN_VAL(x) ((0x1 & (x)) << 0) #define PA0_RG_BGR_EN_MASK (0x1) #define PA0_RG_BGR_EN_OFST (0) #define PA0_RG_MPX_OUT_SEL GENMASK(30, 28) #define PA0_RG_MPX_OUT_SEL_VAL(x) ((0x3 & (x)) << 28) #define PA0_RG_MPX_OUT_SEL_MASK (0x3) #define PA0_RG_MPX_OUT_SEL_OFST (28) #endif #define U3P_USBPHYACR1 0x004 #define PA1_RG_U2_INTR_CAL GENMASK(23, 19) #define PA1_RG_U2_INTR_CAL_VAL(x) ((0x1f & (x)) << 19) #define PA1_RG_U2_INTR_CAL_MASK (0x1f) #define PA1_RG_U2_INTR_CAL_OFST (19) #define PA1_RG_VRT_SEL GENMASK(14, 12) #define PA1_RG_VRT_SEL_VAL(x) ((0x7 & (x)) << 12) #define PA1_RG_VRT_SEL_MASK (0x7) #define PA1_RG_VRT_SEL_OFST (12) #define PA1_RG_TERM_SEL GENMASK(10, 8) #define PA1_RG_TERM_SEL_VAL(x) ((0x7 & (x)) << 8) #define PA1_RG_TERM_SEL_MASK (0x7) #define PA1_RG_TERM_SEL_OFST (8) #define U3P_USBPHYACR2 0x008 #define PA2_RG_SIF_U2PLL_FORCE_EN BIT(18) #define U3P_USBPHYACR5 0x014 #define PA5_RG_U2_HSTX_SRCAL_EN BIT(15) #ifdef CONFIG_SAMSUNG_PHY_TUNE #define PA5_RG_U2_HSTX_SRCAL_EN_VAL(x) ((0x1 & (x)) << 15) #define PA5_RG_U2_HSTX_SRCAL_EN_MASK (0x1) #define PA5_RG_U2_HSTX_SRCAL_EN_OFST (15) #endif #define PA5_RG_U2_HSTX_SRCTRL GENMASK(14, 12) #define PA5_RG_U2_HSTX_SRCTRL_VAL(x) ((0x7 & (x)) << 12) #define PA5_RG_U2_HSTX_SRCTRL_MASK (0x7) #define PA5_RG_U2_HSTX_SRCTRL_OFST (12) #define PA5_RG_U2_HS_100U_U3_EN BIT(11) #define U3P_USBPHYACR6 0x018 #define PA6_RG_U2_PHY_REV6 GENMASK(31, 30) #define PA6_RG_U2_PHY_REV6_VAL(x) ((0x3 & (x)) << 30) #define PA6_RG_U2_PHY_REV6_MASK (0x3) #define PA6_RG_U2_PHY_REV6_OFET (30) #define PA6_RG_U2_PHY_REV4 BIT(28) #define PA6_RG_U2_PHY_REV4_VAL(x) ((0x1 & (x)) << 28) #define PA6_RG_U2_PHY_REV4_MASK (0x1) #define PA6_RG_U2_PHY_REV4_OFET (28) #define PA6_RG_U2_PHY_REV1 BIT(25) #define PA6_RG_U2_BC11_SW_EN BIT(23) #define PA6_RG_U2_OTG_VBUSCMP_EN BIT(20) #define PA6_RG_U2_DISCTH GENMASK(7, 4) #define PA6_RG_U2_DISCTH_VAL(x) ((0xf & (x)) << 4) #define PA6_RG_U2_DISCTH_MASK (0xf) #define PA6_RG_U2_DISCTH_OFET (4) #define PA6_RG_U2_SQTH GENMASK(3, 0) #define PA6_RG_U2_SQTH_VAL(x) (0xf & (x)) #define PA6_RG_U2_SQTH_MASK (0xf) #define PA6_RG_U2_SQTH_OFST (0) #define U3P_USBPHYACR3 0x01c #define PA3_RG_USB20_PUPD_BIST_EN BIT(12) #define PA3_RG_USB20_EN_PU_DP BIT(9) #define U3P_U2PHYACR4 0x020 #define P2C_RG_USB20_DM_100K_EN BIT(17) #define P2C_RG_USB20_GPIO_CTL BIT(9) #define P2C_USB20_GPIO_MODE BIT(8) #define P2C_U2_GPIO_CTR_MSK (P2C_RG_USB20_GPIO_CTL | P2C_USB20_GPIO_MODE) #define U3D_U2PHYDCR0 0x060 #define P2C_RG_SIF_U2PLL_FORCE_ON BIT(24) #define U3P_U2PHYDTM0 0x068 #define P2C_RG_UART_MODE GENMASK(31, 30) #define P2C_RG_UART_MODE_VAL(x) ((0x3 & (x)) << 30) #define P2C_RG_UART_MODE_OFET (30) #define P2C_FORCE_UART_I BIT(29) #define P2C_FORCE_UART_BIAS_EN BIT(28) #define P2C_FORCE_UART_TX_OE BIT(27) #define P2C_FORCE_UART_EN BIT(26) #define P2C_FORCE_DATAIN BIT(23) #define P2C_FORCE_DM_PULLDOWN BIT(21) #define P2C_FORCE_DP_PULLDOWN BIT(20) #define P2C_FORCE_XCVRSEL BIT(19) #define P2C_FORCE_SUSPENDM BIT(18) #define P2C_FORCE_TERMSEL BIT(17) #define P2C_RG_DATAIN GENMASK(13, 10) #define P2C_RG_DATAIN_VAL(x) ((0xf & (x)) << 10) #define P2C_RG_DMPULLDOWN BIT(7) #define P2C_RG_DPPULLDOWN BIT(6) #define P2C_RG_XCVRSEL GENMASK(5, 4) #define P2C_RG_XCVRSEL_VAL(x) ((0x3 & (x)) << 4) #define P2C_RG_SUSPENDM BIT(3) #define P2C_RG_TERMSEL BIT(2) #define P2C_DTM0_PART_MASK \ (P2C_FORCE_DATAIN | P2C_FORCE_DM_PULLDOWN | \ P2C_FORCE_DP_PULLDOWN | P2C_FORCE_XCVRSEL | \ P2C_FORCE_SUSPENDM | P2C_FORCE_TERMSEL | \ P2C_RG_DMPULLDOWN | P2C_RG_DPPULLDOWN | \ P2C_RG_TERMSEL) #define P2C_DTM0_PART_MASK2 \ (P2C_FORCE_DM_PULLDOWN | P2C_FORCE_DP_PULLDOWN | \ P2C_FORCE_XCVRSEL | P2C_FORCE_SUSPENDM | \ P2C_FORCE_TERMSEL | P2C_RG_DMPULLDOWN | \ P2C_RG_DPPULLDOWN | P2C_RG_TERMSEL) #define U3P_U2PHYDTM1 0x06C #define P2C_RG_UART_BIAS_EN BIT(18) #define P2C_RG_UART_TX_OE BIT(17) #define P2C_RG_UART_EN BIT(16) #define P2C_FORCE_VBUSVALID BIT(13) #define P2C_FORCE_SESSEND BIT(12) #define P2C_FORCE_BVALID BIT(11) #define P2C_FORCE_AVALID BIT(10) #define P2C_FORCE_IDDIG BIT(9) #define P2C_FORCE_IDPULLUP BIT(8) #define P2C_RG_VBUSVALID BIT(5) #define P2C_RG_SESSEND BIT(4) #define P2C_RG_BVALID BIT(3) #define P2C_RG_AVALID BIT(2) #define P2C_RG_IDDIG BIT(1) #define P2C_RG_RG_IDPULLUP BIT(0) #define U3P_U2PHYBC12C 0x080 #define P2C_RG_CHGDT_EN BIT(0) #define U3P_U3_CHIP_GPIO_CTLD 0x0c #define P3C_REG_IP_SW_RST BIT(31) #define P3C_MCU_BUS_CK_GATE_EN BIT(30) #define P3C_FORCE_IP_SW_RST BIT(29) #define U3P_U3_CHIP_GPIO_CTLE 0x10 #define P3C_RG_SWRST_U3_PHYD BIT(25) #define P3C_RG_SWRST_U3_PHYD_FORCE_EN BIT(24) #define U3P_U3_PHYA_REG0 0x000 #define P3A_RG_SSUSB_IEXT_INTR_CTRL GENMASK(15, 10) #define P3A_RG_SSUSB_IEXT_INTR_CTRL_VAL(x) ((0x3f & (x)) << 10) #define P3A_RG_CLKDRV_OFF GENMASK(3, 2) #define P3A_RG_CLKDRV_OFF_VAL(x) ((0x3 & (x)) << 2) #define U3P_U3_PHYA_REG1 0x004 #define P3A_RG_CLKDRV_AMP GENMASK(31, 29) #define P3A_RG_CLKDRV_AMP_VAL(x) ((0x7 & (x)) << 29) #define RG_SSUSB_VA_ON BIT(29) #define U3P_U3_PHYA_REG6 0x018 #define P3A_RG_TX_EIDLE_CM GENMASK(31, 28) #define P3A_RG_TX_EIDLE_CM_VAL(x) ((0xf & (x)) << 28) #define U3P_U3_PHYA_REG9 0x024 #define P3A_RG_RX_DAC_MUX GENMASK(5, 1) #define P3A_RG_RX_DAC_MUX_VAL(x) ((0x1f & (x)) << 1) #define U3P_U3_PHYA_DA_REG0 0x100 #define P3A_RG_XTAL_EXT_PE2H GENMASK(17, 16) #define P3A_RG_XTAL_EXT_PE2H_VAL(x) ((0x3 & (x)) << 16) #define P3A_RG_XTAL_EXT_PE1H GENMASK(13, 12) #define P3A_RG_XTAL_EXT_PE1H_VAL(x) ((0x3 & (x)) << 12) #define P3A_RG_XTAL_EXT_EN_U3 GENMASK(11, 10) #define P3A_RG_XTAL_EXT_EN_U3_VAL(x) ((0x3 & (x)) << 10) #define U3P_U3_PHYA_DA_REG4 0x108 #define P3A_RG_PLL_DIVEN_PE2H GENMASK(21, 19) #define P3A_RG_PLL_BC_PE2H GENMASK(7, 6) #define P3A_RG_PLL_BC_PE2H_VAL(x) ((0x3 & (x)) << 6) #define U3P_U3_PHYA_DA_REG5 0x10c #define P3A_RG_PLL_BR_PE2H GENMASK(29, 28) #define P3A_RG_PLL_BR_PE2H_VAL(x) ((0x3 & (x)) << 28) #define P3A_RG_PLL_IC_PE2H GENMASK(15, 12) #define P3A_RG_PLL_IC_PE2H_VAL(x) ((0xf & (x)) << 12) #define U3P_U3_PHYA_DA_REG6 0x110 #define P3A_RG_PLL_IR_PE2H GENMASK(19, 16) #define P3A_RG_PLL_IR_PE2H_VAL(x) ((0xf & (x)) << 16) #define U3P_U3_PHYA_DA_REG7 0x114 #define P3A_RG_PLL_BP_PE2H GENMASK(19, 16) #define P3A_RG_PLL_BP_PE2H_VAL(x) ((0xf & (x)) << 16) #define U3P_U3_PHYA_DA_REG20 0x13c #define P3A_RG_PLL_DELTA1_PE2H GENMASK(31, 16) #define P3A_RG_PLL_DELTA1_PE2H_VAL(x) ((0xffff & (x)) << 16) #define U3P_U3_PHYA_DA_REG25 0x148 #define P3A_RG_PLL_DELTA_PE2H GENMASK(15, 0) #define P3A_RG_PLL_DELTA_PE2H_VAL(x) (0xffff & (x)) #define U3P_U3_PHYD_MIX0 0x000 #define U3P_U3_PHYD_LFPS1 0x00c #define P3D_RG_FWAKE_TH GENMASK(21, 16) #define P3D_RG_FWAKE_TH_VAL(x) ((0x3f & (x)) << 16) #define U3P_U3_PHYD_RX0 0x02c #define U3P_U3_PHYD_T2RLB 0x030 #define U3P_U3_PHYD_PIPE0 0x040 #define U3P_U3_PHYD_IMPCAL0 0x010 #define P3D_RG_SSUSB_TX_IMPSEL GENMASK(28, 24) #define P3D_RG_SSUSB_TX_IMPSEL_VAL(x) ((0x1f & (x)) << 24) #define U3P_U3_PHYD_IMPCAL1 0x014 #define P3D_RG_SSUSB_RX_IMPSEL GENMASK(28, 24) #define P3D_RG_SSUSB_RX_IMPSEL_VAL(x) ((0x1f & (x)) << 24) #define U3P_U3_PHYD_CDR1 0x05c #define P3D_RG_CDR_BIR_LTD1 GENMASK(28, 24) #define P3D_RG_CDR_BIR_LTD1_VAL(x) ((0x1f & (x)) << 24) #define P3D_RG_CDR_BIR_LTD0 GENMASK(12, 8) #define P3D_RG_CDR_BIR_LTD0_VAL(x) ((0x1f & (x)) << 8) #define U3P_U3_PHYD_RXDET1 0x128 #define P3D_RG_RXDET_STB2_SET GENMASK(17, 9) #define P3D_RG_RXDET_STB2_SET_VAL(x) ((0x1ff & (x)) << 9) #define U3P_U3_PHYD_RXDET2 0x12c #define P3D_RG_RXDET_STB2_SET_P3 GENMASK(8, 0) #define P3D_RG_RXDET_STB2_SET_P3_VAL(x) (0x1ff & (x)) #define U3P_SPLLC_XTALCTL3 0x018 #define XC3_RG_U3_XTAL_RX_PWD BIT(9) #define XC3_RG_U3_FRC_XTAL_RX_PWD BIT(8) #define U3P_U2FREQ_FMCR0 0x00 #define P2F_RG_MONCLK_SEL GENMASK(27, 26) #define P2F_RG_MONCLK_SEL_VAL(x) ((0x3 & (x)) << 26) #define P2F_RG_FREQDET_EN BIT(24) #define P2F_RG_CYCLECNT GENMASK(23, 0) #define P2F_RG_CYCLECNT_VAL(x) ((P2F_RG_CYCLECNT) & (x)) #define U3P_U2FREQ_VALUE 0x0c #define U3P_U2FREQ_FMMONR1 0x10 #define P2F_USB_FM_VALID BIT(0) #define P2F_RG_FRCK_EN BIT(8) #define U3P_REF_CLK 26 /* MHZ */ #define U3P_SLEW_RATE_COEF 28 #define U3P_SR_COEF_DIVISOR 1000 #define U3P_FM_DET_CYCLE_CNT 1024 /* SATA register setting */ #define PHYD_CTRL_SIGNAL_MODE4 0x1c /* CDR Charge Pump P-path current adjustment */ #define RG_CDR_BICLTD1_GEN1_MSK GENMASK(23, 20) #define RG_CDR_BICLTD1_GEN1_VAL(x) ((0xf & (x)) << 20) #define RG_CDR_BICLTD0_GEN1_MSK GENMASK(11, 8) #define RG_CDR_BICLTD0_GEN1_VAL(x) ((0xf & (x)) << 8) #define PHYD_DESIGN_OPTION2 0x24 /* Symbol lock count selection */ #define RG_LOCK_CNT_SEL_MSK GENMASK(5, 4) #define RG_LOCK_CNT_SEL_VAL(x) ((0x3 & (x)) << 4) #define PHYD_DESIGN_OPTION9 0x40 /* COMWAK GAP width window */ #define RG_TG_MAX_MSK GENMASK(20, 16) #define RG_TG_MAX_VAL(x) ((0x1f & (x)) << 16) /* COMINIT GAP width window */ #define RG_T2_MAX_MSK GENMASK(13, 8) #define RG_T2_MAX_VAL(x) ((0x3f & (x)) << 8) /* COMWAK GAP width window */ #define RG_TG_MIN_MSK GENMASK(7, 5) #define RG_TG_MIN_VAL(x) ((0x7 & (x)) << 5) /* COMINIT GAP width window */ #define RG_T2_MIN_MSK GENMASK(4, 0) #define RG_T2_MIN_VAL(x) (0x1f & (x)) #define ANA_RG_CTRL_SIGNAL1 0x4c /* TX driver tail current control for 0dB de-empahsis mdoe for Gen1 speed */ #define RG_IDRV_0DB_GEN1_MSK GENMASK(13, 8) #define RG_IDRV_0DB_GEN1_VAL(x) ((0x3f & (x)) << 8) #define ANA_RG_CTRL_SIGNAL4 0x58 #define RG_CDR_BICLTR_GEN1_MSK GENMASK(23, 20) #define RG_CDR_BICLTR_GEN1_VAL(x) ((0xf & (x)) << 20) /* Loop filter R1 resistance adjustment for Gen1 speed */ #define RG_CDR_BR_GEN2_MSK GENMASK(10, 8) #define RG_CDR_BR_GEN2_VAL(x) ((0x7 & (x)) << 8) #define ANA_RG_CTRL_SIGNAL6 0x60 /* I-path capacitance adjustment for Gen1 */ #define RG_CDR_BC_GEN1_MSK GENMASK(28, 24) #define RG_CDR_BC_GEN1_VAL(x) ((0x1f & (x)) << 24) #define RG_CDR_BIRLTR_GEN1_MSK GENMASK(4, 0) #define RG_CDR_BIRLTR_GEN1_VAL(x) (0x1f & (x)) #define ANA_EQ_EYE_CTRL_SIGNAL1 0x6c /* RX Gen1 LEQ tuning step */ #define RG_EQ_DLEQ_LFI_GEN1_MSK GENMASK(11, 8) #define RG_EQ_DLEQ_LFI_GEN1_VAL(x) ((0xf & (x)) << 8) #define ANA_EQ_EYE_CTRL_SIGNAL4 0xd8 #define RG_CDR_BIRLTD0_GEN1_MSK GENMASK(20, 16) #define RG_CDR_BIRLTD0_GEN1_VAL(x) ((0x1f & (x)) << 16) #define ANA_EQ_EYE_CTRL_SIGNAL5 0xdc #define RG_CDR_BIRLTD0_GEN3_MSK GENMASK(4, 0) #define RG_CDR_BIRLTD0_GEN3_VAL(x) (0x1f & (x)) #define PHY_MODE_BC11_SW_SET 1 #define PHY_MODE_BC11_SW_CLR 2 #define PHY_MODE_DPDMPULLDOWN_SET 3 #define PHY_MODE_DPDMPULLDOWN_CLR 4 #define PHY_MODE_DPPULLUP_SET 5 #define PHY_MODE_DPPULLUP_CLR 6 #define PROC_FILE_TERM_SEL "term_sel" #define PROC_FILE_VRT_SEL "vrt_sel" #define PROC_FILE_PHY_REV6 "phy_rev6" #define PROC_FILE_PHY_REV4 "phy_rev4" #define PROC_FILE_DISCTH "discth" #define PROC_FILE_INTR_CAL "intr_cal" #define PROC_FILE_SQTH "sqth" #define PROC_FILE_HSTX_SRCTRL "hstx_srctrl" #define LOOPBACK_STR "loopback_test" #ifdef CONFIG_SAMSUNG_PHY_TUNE #define PROC_FILE_BGR_EN "bgr_en" #define PROC_FILE_INTR_EN "intr_en" #define PROC_FILE_MPX_OUT_SEL "mpx_out_sel" #define PROC_FILE_HSTX_SRCAL_EN "hstx_srcal_en" #ifdef CONFIG_ADB_PHY_TUNING bool phy_tuning_mode = false; #endif #endif enum mtk_phy_version { MTK_PHY_V1 = 1, MTK_PHY_V2, }; enum mtk_phy_efuse { INTR_CAL = 0, IEXT_INTR_CTRL, RX_IMPSEL, TX_IMPSEL, }; static char *efuse_name[4] = { "intr_cal", "iext_intr_ctrl", "rx_impsel", "tx_impsel", }; struct mtk_phy_pdata { /* avoid RX sensitivity level degradation only for mt8173 */ bool avoid_rx_sen_degradation; enum mtk_phy_version version; }; struct u2phy_banks { void __iomem *misc; void __iomem *fmreg; void __iomem *com; }; struct u3phy_banks { void __iomem *spllc; void __iomem *chip; void __iomem *phyd; /* include u3phyd_bank2 */ void __iomem *phya; /* include u3phya_da */ }; struct mtk_phy_instance { struct phy *phy; void __iomem *port_base; union { struct u2phy_banks u2_banks; struct u3phy_banks u3_banks; }; struct clk *ref_clk; /* reference clock of anolog phy */ u32 index; u8 type; int eye_src; int eye_vrt; int eye_term; int eye_rev6; int eye_rev4; int eye_disc; int eye_sqth; int eye_intr_cal; int eye_hstx_srctrl; #ifdef CONFIG_SAMSUNG_PHY_TUNE int eye_bgr_en; int eye_intr_en; int eye_mpx_out_sel; int eye_hstx_srcal_en; #endif bool bc12_en; struct proc_dir_entry *phy_root; }; struct mtk_tphy { struct device *dev; void __iomem *sif_base; /* only shared sif */ /* deprecated, use @ref_clk instead in phy instance */ struct clk *u3phya_ref; /* reference clock of usb3 anolog phy */ const struct mtk_phy_pdata *pdata; struct mtk_phy_instance **phys; int nphys; int src_ref_clk; /* MHZ, reference clock for slew rate calibrate */ int src_coef; /* coefficient for slew rate calibrate */ struct proc_dir_entry *root; }; static void u2_phy_props_set(struct mtk_tphy *tphy, struct mtk_phy_instance *instance); static void u2_phy_instance_set_mode_ext(struct mtk_tphy *tphy, struct mtk_phy_instance *instance, int submode); void cover_val_to_str(u32 val, u8 width, char *str) { int i, temp; temp = val; str[width] = '\0'; for (i = (width - 1); i >= 0; i--) { if (val % 2) str[i] = '1'; else str[i] = '0'; val /= 2; } } /* * loopback_test: default test pattern * readl(U3D_PHYD_PIPE0) & * ~(0x01<<30)) | 0x01<<30, * ~(0x01<<28)) | 0x00<<28, * ~(0x03<<26)) | 0x01<<26, * ~(0x03<<24)) | 0x00<<24, * ~(0x01<<22)) | 0x00<<22, * ~(0x01<<21)) | 0x00<<21, * ~(0x01<<20)) | 0x01<<20. */ #define U3P_U3_PHYD_PIPE0_CLR_PATTERN 0x5f700000 #define U3P_U3_PHYD_PIPE0_SET_PATTERN 0x44100000 static int proc_loopback_test_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct device *dev = &instance->phy->dev; struct u3phy_banks *u3_banks = &instance->u3_banks; int r_pipe0, r_rx0, r_mix0, r_t2rlb; bool ret = false; u32 tmp; r_mix0 = readl(u3_banks->phyd + U3P_U3_PHYD_MIX0); r_rx0 = readl(u3_banks->phyd + U3P_U3_PHYD_RX0); r_t2rlb = readl(u3_banks->phyd + U3P_U3_PHYD_T2RLB); r_pipe0 = readl(u3_banks->phyd + U3P_U3_PHYD_PIPE0); tmp = readl(u3_banks->phyd + U3P_U3_PHYD_PIPE0); tmp &= ~(U3P_U3_PHYD_PIPE0_CLR_PATTERN); tmp |= U3P_U3_PHYD_PIPE0_SET_PATTERN; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_PIPE0); mdelay(10); /* T2R loop back disable */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RX0); tmp &= ~(0x01<<15); tmp |= 0x00<<15; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_RX0); mdelay(10); /* TSEQ lock detect threshold */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_MIX0); tmp &= ~(0x07<<24); tmp |= 0x07<<24; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_MIX0); /* set default TSEQ polarity check value = 1 */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_MIX0); tmp &= ~(0x01<<28); tmp |= 0x01<<28; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_MIX0); /* TSEQ polarity check enable */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_MIX0); tmp &= ~(0x01<<29); tmp |= 0x01<<29; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_MIX0); /* TSEQ decoder enable */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_MIX0); tmp &= ~(0x01<<30); tmp |= 0x01<<30; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_MIX0); mdelay(10); /* set T2R loop back TSEQ length (x 16us) */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_T2RLB); tmp &= ~(0xff<<0); tmp |= 0xf0<<0; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_T2RLB); /* set T2R loop back BDAT reset period (x 16us) */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_T2RLB); tmp &= ~(0x0f<<12); tmp |= 0x0f<<12; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_T2RLB); /* T2R loop back pattern select */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_T2RLB); tmp &= ~(0x03<<8); tmp |= 0x00<<8; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_T2RLB); mdelay(10); /* T2R loop back serial mode */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RX0); tmp &= ~(0x01<<13); tmp |= 0x01<<13; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_RX0); /* T2R loop back parallel mode = 0 */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RX0); tmp &= ~(0x01<<12); tmp |= 0x00<<12; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_RX0); /* T2R loop back mode enable */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RX0); tmp &= ~(0x01<<11); tmp |= 0x01<<11; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_RX0); /* T2R loop back enable */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RX0); tmp &= ~(0x01<<15); tmp |= 0x01<<15; writel(tmp, u3_banks->phyd + U3P_U3_PHYD_RX0); mdelay(100); dev_info(dev, "%s, U3 loop back started\n", __func__); /* check result */ tmp = readl(u3_banks->phyd + 0x0b4); /* verbose dump */ dev_info(dev, "rb back : 0x%x\n", tmp); dev_info(dev, "rb t2rlb_lock : %d\n", (tmp >> 2) & 0x01); dev_info(dev, "rb t2rlb_pass : %d\n", (tmp >> 3) & 0x01); dev_info(dev, "rb t2rlb_passth: %d\n", (tmp >> 4) & 0x01); /* return result */ tmp &= 0x0E; if (tmp == 0x0E) ret = true; else ret = false; /* restore settings */ writel(r_rx0, u3_banks->phyd + U3P_U3_PHYD_RX0); writel(r_pipe0, u3_banks->phyd + U3P_U3_PHYD_PIPE0); writel(r_mix0, u3_banks->phyd + U3P_U3_PHYD_MIX0); writel(r_t2rlb, u3_banks->phyd + U3P_U3_PHYD_T2RLB); dev_info(dev, "%s, loopback_test=0x%x\n", __func__, tmp); seq_printf(s, "%d\n", ret); return 0; } static int proc_loopback_test_open(struct inode *inode, struct file *file) { return single_open(file, proc_loopback_test_show, PDE_DATA(inode)); } static const struct file_operations proc_loopback_test_fops = { .open = proc_loopback_test_open, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int u3_phy_procfs_init(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct device *dev = &instance->phy->dev; struct proc_dir_entry *root = tphy->root; struct proc_dir_entry *phy_root; struct proc_dir_entry *file; int ret; if (!root) { dev_info(dev, "phy proc root not exist\n"); ret = -ENOMEM; goto err0; } phy_root = proc_mkdir("u3_phy", root); if (!root) { dev_info(dev, "failed to creat dir proc u3_phy\n"); ret = -ENOMEM; goto err0; } file = proc_create_data(LOOPBACK_STR, 0444, phy_root, &proc_loopback_test_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", LOOPBACK_STR); ret = -ENOMEM; goto err1; } instance->phy_root = phy_root; return 0; err1: proc_remove(phy_root); err0: return ret; } static int u3_phy_procfs_exit(struct mtk_phy_instance *instance) { proc_remove(instance->phy_root); return 0; } static int proc_term_sel_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR1); tmp >>= PA1_RG_TERM_SEL_OFST; tmp &= PA1_RG_TERM_SEL_MASK; cover_val_to_str(tmp, 3, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_TERM_SEL, str); return 0; } static int proc_term_sel_open(struct inode *inode, struct file *file) { return single_open(file, proc_term_sel_show, PDE_DATA(inode)); } static ssize_t proc_term_sel_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR1); tmp &= ~PA1_RG_TERM_SEL; tmp |= PA1_RG_TERM_SEL_VAL(val); writel(tmp, com + U3P_USBPHYACR1); #ifdef CONFIG_ADB_PHY_TUNING phy_tuning_mode = true; #endif return count; } static const struct file_operations proc_term_sel_fops = { .open = proc_term_sel_open, .write = proc_term_sel_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_vrt_sel_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR1); tmp >>= PA1_RG_VRT_SEL_OFST; tmp &= PA1_RG_VRT_SEL_MASK; cover_val_to_str(tmp, 3, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_VRT_SEL, str); return 0; } static int proc_vrt_sel_open(struct inode *inode, struct file *file) { return single_open(file, proc_vrt_sel_show, PDE_DATA(inode)); } static ssize_t proc_vrt_sel_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR1); tmp &= ~PA1_RG_VRT_SEL; tmp |= PA1_RG_VRT_SEL_VAL(val); writel(tmp, com + U3P_USBPHYACR1); #ifdef CONFIG_ADB_PHY_TUNING phy_tuning_mode = true; #endif return count; } static const struct file_operations proc_vrt_sel_fops = { .open = proc_vrt_sel_open, .write = proc_vrt_sel_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_phy_rev4_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR6); tmp >>= PA6_RG_U2_PHY_REV4_OFET; tmp &= PA6_RG_U2_PHY_REV4_MASK; cover_val_to_str(tmp, 1, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_PHY_REV4, str); return 0; } static int proc_phy_rev4_open(struct inode *inode, struct file *file) { return single_open(file, proc_phy_rev4_show, PDE_DATA(inode)); } static ssize_t proc_phy_rev4_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_PHY_REV4; tmp |= PA6_RG_U2_PHY_REV4_VAL(val); writel(tmp, com + U3P_USBPHYACR6); #ifdef CONFIG_ADB_PHY_TUNING phy_tuning_mode = true; #endif return count; } static const struct file_operations proc_phy_rev4_fops = { .open = proc_phy_rev4_open, .write = proc_phy_rev4_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_phy_rev6_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR6); tmp >>= PA6_RG_U2_PHY_REV6_OFET; tmp &= PA6_RG_U2_PHY_REV6_MASK; cover_val_to_str(tmp, 2, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_PHY_REV6, str); return 0; } static int proc_phy_rev6_open(struct inode *inode, struct file *file) { return single_open(file, proc_phy_rev6_show, PDE_DATA(inode)); } static ssize_t proc_phy_rev6_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_PHY_REV6; tmp |= PA6_RG_U2_PHY_REV6_VAL(val); writel(tmp, com + U3P_USBPHYACR6); #ifdef CONFIG_ADB_PHY_TUNING phy_tuning_mode = true; #endif return count; } static const struct file_operations proc_phy_rev6_fops = { .open = proc_phy_rev6_open, .write = proc_phy_rev6_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_discth_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR6); tmp >>= PA6_RG_U2_DISCTH_OFET; tmp &= PA6_RG_U2_DISCTH_MASK; cover_val_to_str(tmp, 4, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_DISCTH, str); return 0; } static int proc_discth_open(struct inode *inode, struct file *file) { return single_open(file, proc_discth_show, PDE_DATA(inode)); } static ssize_t proc_discth_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_DISCTH; tmp |= PA6_RG_U2_DISCTH_VAL(val); writel(tmp, com + U3P_USBPHYACR6); #ifdef CONFIG_ADB_PHY_TUNING phy_tuning_mode = true; #endif return count; } static const struct file_operations proc_discth_fops = { .open = proc_discth_open, .write = proc_discth_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_intr_cal_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR1); tmp >>= PA1_RG_U2_INTR_CAL_OFST; tmp &= PA1_RG_U2_INTR_CAL_MASK; cover_val_to_str(tmp, 5, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_INTR_CAL, str); return 0; } static int proc_intr_cal_open(struct inode *inode, struct file *file) { return single_open(file, proc_intr_cal_show, PDE_DATA(inode)); } static ssize_t proc_intr_cal_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR1); tmp &= ~PA1_RG_U2_INTR_CAL; tmp |= PA1_RG_U2_INTR_CAL_VAL(val); writel(tmp, com + U3P_USBPHYACR1); #ifdef CONFIG_ADB_PHY_TUNING phy_tuning_mode = true; #endif return count; } static const struct file_operations proc_intr_cal_fops = { .open = proc_intr_cal_open, .write = proc_intr_cal_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_sqth_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR6); tmp >>= PA6_RG_U2_SQTH_OFST; tmp &= PA6_RG_U2_SQTH_MASK; cover_val_to_str(tmp, 4, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_SQTH, str); return 0; } static int proc_sqth_open(struct inode *inode, struct file *file) { return single_open(file, proc_sqth_show, PDE_DATA(inode)); } static ssize_t proc_sqth_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_SQTH; tmp |= PA6_RG_U2_SQTH_VAL(val); writel(tmp, com + U3P_USBPHYACR6); #ifdef CONFIG_ADB_PHY_TUNING phy_tuning_mode = true; #endif return count; } static const struct file_operations proc_sqth_fops = { .open = proc_sqth_open, .write = proc_sqth_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_hstx_srctrl_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR5); tmp >>= PA5_RG_U2_HSTX_SRCTRL_OFST; tmp &= PA5_RG_U2_HSTX_SRCTRL_MASK; cover_val_to_str(tmp, 3, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_HSTX_SRCTRL, str); return 0; } static int proc_hstx_srctrl_open(struct inode *inode, struct file *file) { return single_open(file, proc_hstx_srctrl_show, PDE_DATA(inode)); } static ssize_t proc_hstx_srctrl_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR5); tmp &= ~PA5_RG_U2_HSTX_SRCTRL; tmp |= PA5_RG_U2_HSTX_SRCTRL_VAL(val); writel(tmp, com + U3P_USBPHYACR5); #ifdef CONFIG_ADB_PHY_TUNING phy_tuning_mode = true; #endif return count; } static const struct file_operations proc_hstx_srctrl_fops = { .open = proc_hstx_srctrl_open, .write = proc_hstx_srctrl_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; #ifdef CONFIG_ADB_PHY_TUNING static int proc_bgr_en_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR0); tmp >>= PA0_RG_BGR_EN_OFST; tmp &= PA0_RG_BGR_EN_MASK; cover_val_to_str(tmp, 1, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_BGR_EN, str); return 0; } static int proc_bgr_en_open(struct inode *inode, struct file *file) { return single_open(file, proc_bgr_en_show, PDE_DATA(inode)); } static ssize_t proc_bgr_en_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR0); tmp &= ~PA0_RG_BGR_EN; tmp |= PA0_RG_BGR_EN_VAL(val); writel(tmp, com + U3P_USBPHYACR0); return count; } static const struct file_operations proc_bgr_en_fops = { .open = proc_bgr_en_open, .write = proc_bgr_en_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_intr_en_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR0); tmp >>= PA0_RG_USB20_INTR_EN_OFST; tmp &= PA0_RG_USB20_INTR_EN_MASK; cover_val_to_str(tmp, 1, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_INTR_EN, str); return 0; } static int proc_intr_en_open(struct inode *inode, struct file *file) { return single_open(file, proc_intr_en_show, PDE_DATA(inode)); } static ssize_t proc_intr_en_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR0); tmp &= ~PA0_RG_USB20_INTR_EN; tmp |= PA0_RG_USB20_INTR_EN_VAL(val); writel(tmp, com + U3P_USBPHYACR0); phy_tuning_mode = true; return count; } static const struct file_operations proc_intr_en_fops = { .open = proc_intr_en_open, .write = proc_intr_en_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_mpx_out_sel_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR0); tmp >>= PA0_RG_MPX_OUT_SEL_OFST; tmp &= PA0_RG_MPX_OUT_SEL_MASK; cover_val_to_str(tmp, 2, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_MPX_OUT_SEL, str); return 0; } static int proc_mpx_out_sel_open(struct inode *inode, struct file *file) { return single_open(file, proc_mpx_out_sel_show, PDE_DATA(inode)); } static ssize_t proc_mpx_out_sel_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR0); tmp &= ~PA0_RG_MPX_OUT_SEL; tmp |= PA0_RG_MPX_OUT_SEL_VAL(val); writel(tmp, com + U3P_USBPHYACR0); phy_tuning_mode = true; return count; } static const struct file_operations proc_mpx_out_sel_fops = { .open = proc_mpx_out_sel_open, .write = proc_mpx_out_sel_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; static int proc_hstx_srcal_en_show(struct seq_file *s, void *unused) { struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 tmp; char str[16]; tmp = readl(com + U3P_USBPHYACR5); tmp >>= PA5_RG_U2_HSTX_SRCAL_EN_OFST; tmp &= PA5_RG_U2_HSTX_SRCAL_EN_MASK; cover_val_to_str(tmp, 1, str); seq_printf(s, "\n%s = %s\n", PROC_FILE_HSTX_SRCAL_EN, str); return 0; } static int proc_hstx_srcal_en_open(struct inode *inode, struct file *file) { return single_open(file, proc_hstx_srcal_en_show, PDE_DATA(inode)); } static ssize_t proc_hstx_srcal_en_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct seq_file *s = file->private_data; struct mtk_phy_instance *instance = s->private; struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; char buf[20]; u32 tmp, val; memset(buf, 0x00, sizeof(buf)); if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) return -EFAULT; if (kstrtouint(buf, 2, &val)) return -EINVAL; tmp = readl(com + U3P_USBPHYACR5); tmp &= ~PA5_RG_U2_HSTX_SRCAL_EN; tmp |= PA5_RG_U2_HSTX_SRCAL_EN_VAL(val); writel(tmp, com + U3P_USBPHYACR5); phy_tuning_mode = true; return count; } static const struct file_operations proc_hstx_srcal_en_fops = { .open = proc_hstx_srcal_en_open, .write = proc_hstx_srcal_en_write, .read = seq_read, .llseek = seq_lseek, .release = single_release, }; #endif static int u2_phy_procfs_init(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct device *dev = &instance->phy->dev; struct proc_dir_entry *root = tphy->root; struct proc_dir_entry *phy_root; struct proc_dir_entry *file; int ret; if (!root) { dev_info(dev, "proc root not exist\n"); ret = -ENOMEM; goto err0; } phy_root = proc_mkdir("u2_phy", root); if (!root) { dev_info(dev, "failed to creat dir proc /u2_phy\n"); ret = -ENOMEM; goto err0; } file = proc_create_data(PROC_FILE_TERM_SEL, 0644, phy_root, &proc_term_sel_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_TERM_SEL); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_VRT_SEL, 0644, phy_root, &proc_vrt_sel_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_VRT_SEL); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_PHY_REV4, 0644, phy_root, &proc_phy_rev4_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_PHY_REV4); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_PHY_REV6, 0644, phy_root, &proc_phy_rev6_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_PHY_REV6); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_DISCTH, 0644, phy_root, &proc_discth_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_DISCTH); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_INTR_CAL, 0644, phy_root, &proc_intr_cal_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_INTR_CAL); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_SQTH, 0644, phy_root, &proc_sqth_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_SQTH); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_HSTX_SRCTRL, 0644, phy_root, &proc_hstx_srctrl_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_HSTX_SRCTRL); ret = -ENOMEM; goto err1; } #ifdef CONFIG_ADB_PHY_TUNING file = proc_create_data(PROC_FILE_BGR_EN, 0644, phy_root, &proc_bgr_en_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_BGR_EN); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_INTR_EN, 0644, phy_root, &proc_intr_en_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_INTR_EN); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_MPX_OUT_SEL, 0644, phy_root, &proc_mpx_out_sel_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_MPX_OUT_SEL); ret = -ENOMEM; goto err1; } file = proc_create_data(PROC_FILE_HSTX_SRCAL_EN, 0644, phy_root, &proc_hstx_srcal_en_fops, instance); if (!file) { dev_info(dev, "failed to creat proc file: %s\n", PROC_FILE_HSTX_SRCAL_EN); ret = -ENOMEM; goto err1; } #endif instance->phy_root = phy_root; return 0; err1: proc_remove(phy_root); err0: return ret; } static int u2_phy_procfs_exit(struct mtk_phy_instance *instance) { proc_remove(instance->phy_root); return 0; } static int mtk_phy_procfs_init(struct mtk_tphy *tphy) { struct proc_dir_entry *root = NULL; proc_mkdir("mtk_usb", NULL); root = proc_mkdir("mtk_usb/usb-phy0", NULL); if (!root) { dev_info(tphy->dev, "failed to creat usb-phy0 dir\n"); return -ENOMEM; } tphy->root = root; return 0; } static int mtk_phy_procfs_exit(struct mtk_tphy *tphy) { proc_remove(tphy->root); return 0; } static int phy_efuse_set(struct mtk_phy_instance *instance, enum mtk_phy_efuse type) { struct device *dev = &instance->phy->dev; struct device_node *np = dev->of_node; struct u2phy_banks *u2_banks; struct u3phy_banks *u3_banks; u32 val, tmp, mask; int index = 0, ret = 0; index = of_property_match_string(np, "nvmem-cell-names", efuse_name[type]); if (index < 0) return index; ret = of_property_read_u32_index(np, "nvmem-cell-masks", index, &mask); if (ret) return ret; ret = nvmem_cell_read_u32(dev, efuse_name[type], &val); if (ret) return ret; if (!val || !mask) return 0; val = (val & mask) >> (ffs(mask) - 1); dev_info(dev, "%s, %s=0x%x\n", __func__, efuse_name[type], val); switch (type) { case INTR_CAL: u2_banks = &instance->u2_banks; tmp = readl(u2_banks->com + U3P_USBPHYACR1); tmp &= ~PA1_RG_U2_INTR_CAL; tmp |= PA1_RG_U2_INTR_CAL_VAL(val); writel(tmp, u2_banks->com + U3P_USBPHYACR1); break; case IEXT_INTR_CTRL: u3_banks = &instance->u3_banks; tmp = readl(u3_banks->phya + U3P_U3_PHYA_REG0); tmp &= ~P3A_RG_SSUSB_IEXT_INTR_CTRL; tmp |= P3A_RG_SSUSB_IEXT_INTR_CTRL_VAL(val); writel(tmp, u3_banks->phya + U3P_U3_PHYA_REG0); break; case RX_IMPSEL: u3_banks = &instance->u3_banks; tmp = readl(u3_banks->phyd + U3P_U3_PHYD_IMPCAL1); tmp &= ~P3D_RG_SSUSB_RX_IMPSEL; tmp |= P3D_RG_SSUSB_RX_IMPSEL_VAL(val); writel(tmp, u3_banks->phyd + U3P_U3_PHYD_IMPCAL1); break; case TX_IMPSEL: u3_banks = &instance->u3_banks; tmp = readl(u3_banks->phyd + U3P_U3_PHYD_IMPCAL0); tmp &= ~P3D_RG_SSUSB_TX_IMPSEL; tmp |= P3D_RG_SSUSB_TX_IMPSEL_VAL(val); writel(tmp, u3_banks->phyd + U3P_U3_PHYD_IMPCAL0); break; default: return 0; } return 0; } static void u2_phy_efuse_set(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { phy_efuse_set(instance, INTR_CAL); } static void u3_phy_efuse_set(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { phy_efuse_set(instance, IEXT_INTR_CTRL); phy_efuse_set(instance, RX_IMPSEL); phy_efuse_set(instance, TX_IMPSEL); } static void hs_slew_rate_calibrate(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *fmreg = u2_banks->fmreg; void __iomem *com = u2_banks->com; int calibration_val; int fm_out; u32 tmp; /* use force value */ if (instance->eye_src) return; /* enable USB ring oscillator */ tmp = readl(com + U3P_USBPHYACR5); tmp |= PA5_RG_U2_HSTX_SRCAL_EN; writel(tmp, com + U3P_USBPHYACR5); udelay(1); /*enable free run clock */ tmp = readl(fmreg + U3P_U2FREQ_FMMONR1); tmp |= P2F_RG_FRCK_EN; writel(tmp, fmreg + U3P_U2FREQ_FMMONR1); /* set cycle count as 1024, and select u2 channel */ tmp = readl(fmreg + U3P_U2FREQ_FMCR0); tmp &= ~(P2F_RG_CYCLECNT | P2F_RG_MONCLK_SEL); tmp |= P2F_RG_CYCLECNT_VAL(U3P_FM_DET_CYCLE_CNT); if (tphy->pdata->version == MTK_PHY_V1) tmp |= P2F_RG_MONCLK_SEL_VAL(instance->index >> 1); writel(tmp, fmreg + U3P_U2FREQ_FMCR0); /* enable frequency meter */ tmp = readl(fmreg + U3P_U2FREQ_FMCR0); tmp |= P2F_RG_FREQDET_EN; writel(tmp, fmreg + U3P_U2FREQ_FMCR0); /* ignore return value */ readl_poll_timeout_atomic(fmreg + U3P_U2FREQ_FMMONR1, tmp, (tmp & P2F_USB_FM_VALID), 10, 200); fm_out = readl(fmreg + U3P_U2FREQ_VALUE); /* disable frequency meter */ tmp = readl(fmreg + U3P_U2FREQ_FMCR0); tmp &= ~P2F_RG_FREQDET_EN; writel(tmp, fmreg + U3P_U2FREQ_FMCR0); /*disable free run clock */ tmp = readl(fmreg + U3P_U2FREQ_FMMONR1); tmp &= ~P2F_RG_FRCK_EN; writel(tmp, fmreg + U3P_U2FREQ_FMMONR1); if (fm_out) { /* ( 1024 / FM_OUT ) x reference clock frequency x coef */ tmp = tphy->src_ref_clk * tphy->src_coef; tmp = (tmp * U3P_FM_DET_CYCLE_CNT) / fm_out; calibration_val = DIV_ROUND_CLOSEST(tmp, U3P_SR_COEF_DIVISOR); } else { /* if FM detection fail, set default value */ calibration_val = 4; } dev_dbg(tphy->dev, "phy:%d, fm_out:%d, calib:%d (clk:%d, coef:%d)\n", instance->index, fm_out, calibration_val, tphy->src_ref_clk, tphy->src_coef); /* set HS slew rate */ tmp = readl(com + U3P_USBPHYACR5); tmp &= ~PA5_RG_U2_HSTX_SRCTRL; tmp |= PA5_RG_U2_HSTX_SRCTRL_VAL(calibration_val); writel(tmp, com + U3P_USBPHYACR5); #ifdef CONFIG_SAMSUNG_PHY_TUNE if (instance->eye_hstx_srcal_en < 0) { #endif /* disable USB ring oscillator */ tmp = readl(com + U3P_USBPHYACR5); tmp &= ~PA5_RG_U2_HSTX_SRCAL_EN; writel(tmp, com + U3P_USBPHYACR5); #ifdef CONFIG_SAMSUNG_PHY_TUNE } #endif } static void u3_phy_instance_init(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u3phy_banks *u3_banks = &instance->u3_banks; u32 tmp; tmp = readl(u3_banks->phya + U3P_U3_PHYA_REG1); tmp |= RG_SSUSB_VA_ON; writel(tmp, u3_banks->phya + U3P_U3_PHYA_REG1); /* gating PCIe Analog XTAL clock */ tmp = readl(u3_banks->spllc + U3P_SPLLC_XTALCTL3); tmp |= XC3_RG_U3_XTAL_RX_PWD | XC3_RG_U3_FRC_XTAL_RX_PWD; writel(tmp, u3_banks->spllc + U3P_SPLLC_XTALCTL3); /* gating XSQ */ tmp = readl(u3_banks->phya + U3P_U3_PHYA_DA_REG0); tmp &= ~P3A_RG_XTAL_EXT_EN_U3; tmp |= P3A_RG_XTAL_EXT_EN_U3_VAL(2); writel(tmp, u3_banks->phya + U3P_U3_PHYA_DA_REG0); tmp = readl(u3_banks->phya + U3P_U3_PHYA_REG9); tmp &= ~P3A_RG_RX_DAC_MUX; tmp |= P3A_RG_RX_DAC_MUX_VAL(4); writel(tmp, u3_banks->phya + U3P_U3_PHYA_REG9); tmp = readl(u3_banks->phya + U3P_U3_PHYA_REG6); tmp &= ~P3A_RG_TX_EIDLE_CM; tmp |= P3A_RG_TX_EIDLE_CM_VAL(0xe); writel(tmp, u3_banks->phya + U3P_U3_PHYA_REG6); tmp = readl(u3_banks->phyd + U3P_U3_PHYD_CDR1); tmp &= ~(P3D_RG_CDR_BIR_LTD0 | P3D_RG_CDR_BIR_LTD1); tmp |= P3D_RG_CDR_BIR_LTD0_VAL(0xc) | P3D_RG_CDR_BIR_LTD1_VAL(0x3); writel(tmp, u3_banks->phyd + U3P_U3_PHYD_CDR1); tmp = readl(u3_banks->phyd + U3P_U3_PHYD_LFPS1); tmp &= ~P3D_RG_FWAKE_TH; tmp |= P3D_RG_FWAKE_TH_VAL(0x34); writel(tmp, u3_banks->phyd + U3P_U3_PHYD_LFPS1); tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RXDET1); tmp &= ~P3D_RG_RXDET_STB2_SET; tmp |= P3D_RG_RXDET_STB2_SET_VAL(0x10); writel(tmp, u3_banks->phyd + U3P_U3_PHYD_RXDET1); tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RXDET2); tmp &= ~P3D_RG_RXDET_STB2_SET_P3; tmp |= P3D_RG_RXDET_STB2_SET_P3_VAL(0x10); writel(tmp, u3_banks->phyd + U3P_U3_PHYD_RXDET2); dev_dbg(tphy->dev, "%s(%d)\n", __func__, instance->index); } static void u2_phy_instance_init(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 index = instance->index; u32 tmp; /* switch to USB function, and enable usb pll */ tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~(P2C_FORCE_UART_EN | P2C_FORCE_SUSPENDM); tmp |= P2C_RG_XCVRSEL_VAL(1) | P2C_RG_DATAIN_VAL(0); writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_U2PHYDTM1); tmp &= ~P2C_RG_UART_EN; writel(tmp, com + U3P_U2PHYDTM1); tmp = readl(com + U3P_USBPHYACR0); tmp |= PA0_RG_USB20_INTR_EN; writel(tmp, com + U3P_USBPHYACR0); /* disable switch 100uA current to SSUSB */ tmp = readl(com + U3P_USBPHYACR5); tmp &= ~PA5_RG_U2_HS_100U_U3_EN; writel(tmp, com + U3P_USBPHYACR5); if (!index) { tmp = readl(com + U3P_U2PHYACR4); tmp &= ~P2C_U2_GPIO_CTR_MSK; writel(tmp, com + U3P_U2PHYACR4); } if (tphy->pdata->avoid_rx_sen_degradation) { if (!index) { tmp = readl(com + U3P_USBPHYACR2); tmp |= PA2_RG_SIF_U2PLL_FORCE_EN; writel(tmp, com + U3P_USBPHYACR2); tmp = readl(com + U3D_U2PHYDCR0); tmp &= ~P2C_RG_SIF_U2PLL_FORCE_ON; writel(tmp, com + U3D_U2PHYDCR0); } else { tmp = readl(com + U3D_U2PHYDCR0); tmp |= P2C_RG_SIF_U2PLL_FORCE_ON; writel(tmp, com + U3D_U2PHYDCR0); tmp = readl(com + U3P_U2PHYDTM0); tmp |= P2C_RG_SUSPENDM | P2C_FORCE_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); } } tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_BC11_SW_EN; /* DP/DM BC1.1 path Disable */ tmp &= ~PA6_RG_U2_SQTH; tmp |= PA6_RG_U2_SQTH_VAL(0); writel(tmp, com + U3P_USBPHYACR6); dev_info(tphy->dev, "%s(%d)\n", __func__, index); } static void u2_phy_instance_power_on(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 index = instance->index; u32 tmp; tmp = readl(com + U3P_U2PHYDTM0); tmp |= P2C_FORCE_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~P2C_RG_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_U2PHYDTM0); tmp |= P2C_RG_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); udelay(30); tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~P2C_FORCE_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~P2C_RG_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~(P2C_FORCE_UART_EN); writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_U2PHYDTM1); tmp &= ~P2C_RG_UART_EN; writel(tmp, com + U3P_U2PHYDTM1); tmp = readl(com + U3P_U2PHYACR4); tmp &= ~P2C_U2_GPIO_CTR_MSK; writel(tmp, com + U3P_U2PHYACR4); tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~P2C_FORCE_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~(P2C_RG_XCVRSEL | P2C_RG_DATAIN | P2C_DTM0_PART_MASK); writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_BC11_SW_EN; writel(tmp, com + U3P_USBPHYACR6); /* OTG Enable */ tmp = readl(com + U3P_USBPHYACR6); tmp |= PA6_RG_U2_OTG_VBUSCMP_EN; writel(tmp, com + U3P_USBPHYACR6); tmp = readl(com + U3P_U2PHYDTM1); tmp |= P2C_RG_VBUSVALID | P2C_RG_AVALID; tmp &= ~P2C_RG_SESSEND; writel(tmp, com + U3P_U2PHYDTM1); #ifdef CONFIG_SAMSUNG_PHY_TUNE if (instance->eye_rev6 < 0) { #endif tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_PHY_REV6; tmp |= PA6_RG_U2_PHY_REV6_VAL(1); writel(tmp, com + U3P_USBPHYACR6); #ifdef CONFIG_SAMSUNG_PHY_TUNE } #endif udelay(800); if (tphy->pdata->avoid_rx_sen_degradation && index) { tmp = readl(com + U3D_U2PHYDCR0); tmp |= P2C_RG_SIF_U2PLL_FORCE_ON; writel(tmp, com + U3D_U2PHYDCR0); tmp = readl(com + U3P_U2PHYDTM0); tmp |= P2C_RG_SUSPENDM | P2C_FORCE_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); } #ifdef CONFIG_USB_MTK_HDRC #ifdef CONFIG_SAMSUNG_PHY_TUNE if (instance->eye_disc < 0) { #endif /* Used by phone products */ /* HQA Setting */ tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_DISCTH; tmp |= PA6_RG_U2_DISCTH_VAL(0xf); writel(tmp, com + U3P_USBPHYACR6); #ifdef CONFIG_SAMSUNG_PHY_TUNE } #endif #endif dev_info(tphy->dev, "%s(%d)\n", __func__, index); } static void u2_phy_instance_power_off(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 index = instance->index; u32 tmp; tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~(P2C_FORCE_UART_EN); writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_U2PHYDTM1); tmp &= ~P2C_RG_UART_EN; writel(tmp, com + U3P_U2PHYDTM1); tmp = readl(com + U3P_U2PHYACR4); tmp &= ~P2C_U2_GPIO_CTR_MSK; writel(tmp, com + U3P_U2PHYACR4); tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_BC11_SW_EN; writel(tmp, com + U3P_USBPHYACR6); /* OTG Disable */ tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_OTG_VBUSCMP_EN; writel(tmp, com + U3P_USBPHYACR6); tmp = readl(com + U3P_U2PHYDTM1); tmp &= ~(P2C_RG_VBUSVALID | P2C_RG_AVALID); tmp |= P2C_RG_SESSEND; writel(tmp, com + U3P_U2PHYDTM1); tmp = readl(com + U3P_U2PHYDTM0); tmp |= P2C_RG_SUSPENDM | P2C_FORCE_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); mdelay(2); tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~P2C_RG_DATAIN; tmp |= (P2C_RG_XCVRSEL_VAL(1) | P2C_DTM0_PART_MASK); writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3P_USBPHYACR6); tmp |= PA6_RG_U2_PHY_REV6_VAL(1); writel(tmp, com + U3P_USBPHYACR6); udelay(800); tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~P2C_RG_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); udelay(1); if (tphy->pdata->avoid_rx_sen_degradation && index) { tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~(P2C_RG_SUSPENDM | P2C_FORCE_SUSPENDM); writel(tmp, com + U3P_U2PHYDTM0); tmp = readl(com + U3D_U2PHYDCR0); tmp &= ~P2C_RG_SIF_U2PLL_FORCE_ON; writel(tmp, com + U3D_U2PHYDCR0); } dev_info(tphy->dev, "%s(%d)\n", __func__, index); } static void u2_phy_instance_exit(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; u32 index = instance->index; u32 tmp; if (tphy->pdata->avoid_rx_sen_degradation && index) { tmp = readl(com + U3D_U2PHYDCR0); tmp &= ~P2C_RG_SIF_U2PLL_FORCE_ON; writel(tmp, com + U3D_U2PHYDCR0); tmp = readl(com + U3P_U2PHYDTM0); tmp &= ~P2C_FORCE_SUSPENDM; writel(tmp, com + U3P_U2PHYDTM0); } } static void u2_phy_instance_set_mode_2uart(struct u2phy_banks *u2_banks) { u32 tmp; /* Clear PA6_RG_U2_BC11_SW_EN */ tmp = readl(u2_banks->com + U3P_USBPHYACR6); tmp &= ~(PA6_RG_U2_BC11_SW_EN); writel(tmp, u2_banks->com + U3P_USBPHYACR6); /* Set P2C_RG_SUSPENDM */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp |= P2C_RG_SUSPENDM; writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Set P2C_FORCE_SUSPENDM */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp |= P2C_FORCE_SUSPENDM; writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Clear and Set P2C_RG_UART_MODE to 2'b01 */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp &= ~(P2C_RG_UART_MODE); tmp |= P2C_RG_UART_MODE_VAL(0x1); writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Clear P2C_FORCE_UART_I */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp &= ~(P2C_FORCE_UART_I); writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Set P2C_FORCE_UART_BIAS_EN */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp |= P2C_FORCE_UART_BIAS_EN; writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Set P2C_FORCE_UART_TX_OE */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp |= P2C_FORCE_UART_TX_OE; writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Set P2C_FORCE_UART_EN */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp |= P2C_FORCE_UART_EN; writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Set P2C_RG_UART_BIAS_EN */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp |= P2C_RG_UART_BIAS_EN; writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Set P2C_RG_UART_TX_OE */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp |= P2C_RG_UART_TX_OE; writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Set P2C_RG_UART_EN */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp |= P2C_RG_UART_EN; writel(tmp, u2_banks->com + U3P_U2PHYDTM0); /* Set P2C_RG_USB20_DM_100K_EN */ tmp = readl(u2_banks->com + U3P_U2PHYACR4); tmp |= P2C_RG_USB20_DM_100K_EN; writel(tmp, u2_banks->com + U3P_U2PHYACR4); /* Clear P2C_RG_DMPULLDOWN, P2C_RG_DPPULLDOWN */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp &= ~(P2C_RG_DPPULLDOWN | P2C_RG_DMPULLDOWN); writel(tmp, u2_banks->com + U3P_U2PHYDTM0); } static void u2_phy_instance_set_mode_2usb(struct u2phy_banks *u2_banks) { u32 tmp; /* Cear P2C_FORCE_UART_EN and P2C_RG_UART_MODE */ tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp &= ~(P2C_FORCE_UART_EN | P2C_RG_UART_MODE); writel(tmp, u2_banks->com + U3P_U2PHYDTM0); } static int u2_phy_instance_get_mode_ext(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u2phy_banks *u2_banks = &instance->u2_banks; u32 tmp; tmp = readl(u2_banks->com + U3P_U2PHYDTM0); if ((tmp & P2C_RG_UART_MODE) >> P2C_RG_UART_MODE_OFET) return PHY_MODE_UART; else return PHY_MODE_USB_OTG; } static void u2_phy_set_default_value(struct mtk_phy_instance *instance) { instance->eye_src = -1; instance->eye_vrt = -1; instance->eye_term = -1; instance->eye_rev4 = -1; instance->eye_rev6 = -1; instance->eye_disc = -1; instance->eye_sqth = -1; instance->eye_intr_cal = -1; instance->eye_hstx_srctrl = -1; #ifdef CONFIG_SAMSUNG_PHY_TUNE instance->eye_bgr_en = -1; instance->eye_intr_en = -1; instance->eye_mpx_out_sel = -1; instance->eye_hstx_srcal_en = -1; #endif } static void u2_phy_instance_set_mode(struct mtk_tphy *tphy, struct mtk_phy_instance *instance, enum phy_mode mode) { struct u2phy_banks *u2_banks = &instance->u2_banks; struct device *dev = &instance->phy->dev; u32 tmp, val; tmp = readl(u2_banks->com + U3P_U2PHYDTM1); switch (mode) { case PHY_MODE_UART: u2_phy_instance_set_mode_2uart(u2_banks); return; case PHY_MODE_USB_DEVICE: tmp |= P2C_FORCE_IDDIG | P2C_RG_IDDIG; #ifdef CONFIG_USB_MTK_HDRC /* Used by phone products */ tmp |= P2C_RG_VBUSVALID | P2C_RG_BVALID | P2C_RG_AVALID | P2C_RG_RG_IDPULLUP; tmp &= ~P2C_RG_SESSEND; #endif u2_phy_set_default_value(instance); if(!device_property_read_u32(dev, "mediatek,eye-src", &val)) instance->eye_src = val; if(!device_property_read_u32(dev, "mediatek,eye-vrt", &val)) instance->eye_vrt = val; if(!device_property_read_u32(dev, "mediatek,eye-term", &val)) instance->eye_term = val; if(!device_property_read_u32(dev, "mediatek,eye-rev4", &val)) instance->eye_rev4 = val; if(!device_property_read_u32(dev, "mediatek,eye-rev6", &val)) instance->eye_rev6 = val; if(!device_property_read_u32(dev, "mediatek,eye-disc", &val)) instance->eye_disc = val; if(!device_property_read_u32(dev, "mediatek,eye-sqth", &val)) instance->eye_sqth = val; if(!device_property_read_u32(dev, "mediatek,eye-intr_cal", &val)) instance->eye_intr_cal = val; if(!device_property_read_u32(dev, "mediatek,eye-hstx_srctrl", &val)) instance->eye_hstx_srctrl = val; #ifdef CONFIG_SAMSUNG_PHY_TUNE if(!device_property_read_u32(dev, "mediatek,eye-bgr_en", &val)) instance->eye_bgr_en = val; if(!device_property_read_u32(dev, "mediatek,eye-intr_en", &val)) instance->eye_intr_en = val; if(!device_property_read_u32(dev, "mediatek,eye-mpx_out_sel", &val)) instance->eye_mpx_out_sel = val; if(!device_property_read_u32(dev, "mediatek,eye-hstx_srcal_en", &val)) instance->eye_hstx_srcal_en = val; #endif u2_phy_props_set(tphy, instance); break; case PHY_MODE_USB_HOST: tmp |= P2C_FORCE_IDDIG; tmp &= ~P2C_RG_IDDIG; #ifdef CONFIG_USB_MTK_HDRC /* Used by phone products */ tmp |= P2C_RG_VBUSVALID | P2C_RG_BVALID | P2C_RG_AVALID | P2C_RG_RG_IDPULLUP; tmp &= ~P2C_RG_SESSEND; #endif u2_phy_set_default_value(instance); if(!device_property_read_u32(dev, "mediatek,host-eye-src", &val)) instance->eye_src = val; if(!device_property_read_u32(dev, "mediatek,host-eye-vrt", &val)) instance->eye_vrt = val; if(!device_property_read_u32(dev, "mediatek,host-eye-term", &val)) instance->eye_term = val; if(!device_property_read_u32(dev, "mediatek,host-eye-rev4", &val)) instance->eye_rev4 = val; if(!device_property_read_u32(dev, "mediatek,host-eye-rev6", &val)) instance->eye_rev6 = val; if(!device_property_read_u32(dev, "mediatek,host-eye-disc", &val)) instance->eye_disc = val; if(!device_property_read_u32(dev, "mediatek,host-eye-sqth", &val)) instance->eye_sqth = val; if(!device_property_read_u32(dev, "mediatek,host-eye-intr_cal", &val)) instance->eye_intr_cal = val; if(!device_property_read_u32(dev, "mediatek,host-eye-hstx_srctrl", &val)) instance->eye_hstx_srctrl = val; #ifdef CONFIG_SAMSUNG_PHY_TUNE if(!device_property_read_u32(dev, "mediatek,host-eye-bgr_en", &val)) instance->eye_bgr_en = val; if(!device_property_read_u32(dev, "mediatek,host-eye-intr_en", &val)) instance->eye_intr_en = val; if(!device_property_read_u32(dev, "mediatek,host-eye-mpx_out_sel", &val)) instance->eye_mpx_out_sel = val; if(!device_property_read_u32(dev, "mediatek,host-eye-hstx_srcal_en", &val)) instance->eye_hstx_srcal_en = val; #endif u2_phy_props_set(tphy, instance); break; case PHY_MODE_USB_OTG: u2_phy_instance_set_mode_2usb(u2_banks); tmp &= ~(P2C_FORCE_IDDIG | P2C_RG_IDDIG); break; case PHY_MODE_INVALID: /* Used by phone products */ tmp |= P2C_RG_SESSEND | P2C_RG_RG_IDPULLUP; tmp &= ~(P2C_RG_VBUSVALID | P2C_RG_BVALID | P2C_RG_AVALID | P2C_RG_IDDIG); tmp |= P2C_FORCE_IDDIG; break; default: return; } #ifdef CONFIG_USB_MTK_HDRC /* Used by phone products */ tmp |= P2C_FORCE_VBUSVALID | P2C_FORCE_SESSEND | P2C_FORCE_BVALID | P2C_FORCE_AVALID | P2C_FORCE_IDPULLUP; #endif writel(tmp, u2_banks->com + U3P_U2PHYDTM1); } static void u2_phy_instance_set_mode_ext(struct mtk_tphy *tphy, struct mtk_phy_instance *instance, int submode) { struct u2phy_banks *u2_banks = &instance->u2_banks; u32 tmp; dev_info(tphy->dev, "%s submode(%d)\n", __func__, submode); switch (submode) { case PHY_MODE_BC11_SW_SET: tmp = readl(u2_banks->com + U3P_USBPHYACR6); tmp |= PA6_RG_U2_BC11_SW_EN; writel(tmp, u2_banks->com + U3P_USBPHYACR6); break; case PHY_MODE_BC11_SW_CLR: tmp = readl(u2_banks->com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_BC11_SW_EN; writel(tmp, u2_banks->com + U3P_USBPHYACR6); break; case PHY_MODE_DPDMPULLDOWN_SET: tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp |= P2C_RG_DPPULLDOWN | P2C_RG_DMPULLDOWN; writel(tmp, u2_banks->com + U3P_U2PHYDTM0); tmp = readl(u2_banks->com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_PHY_REV1; writel(tmp, u2_banks->com + U3P_USBPHYACR6); tmp = readl(u2_banks->com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_BC11_SW_EN; writel(tmp, u2_banks->com + U3P_USBPHYACR6); break; case PHY_MODE_DPDMPULLDOWN_CLR: tmp = readl(u2_banks->com + U3P_U2PHYDTM0); tmp &= ~(P2C_RG_DPPULLDOWN | P2C_RG_DMPULLDOWN); writel(tmp, u2_banks->com + U3P_U2PHYDTM0); tmp = readl(u2_banks->com + U3P_USBPHYACR6); tmp |= PA6_RG_U2_PHY_REV1; writel(tmp, u2_banks->com + U3P_USBPHYACR6); tmp = readl(u2_banks->com + U3P_USBPHYACR6); tmp |= PA6_RG_U2_BC11_SW_EN; writel(tmp, u2_banks->com + U3P_USBPHYACR6); break; case PHY_MODE_DPPULLUP_SET: tmp = readl(u2_banks->com + U3P_USBPHYACR3); tmp |= PA3_RG_USB20_PUPD_BIST_EN | PA3_RG_USB20_EN_PU_DP; writel(tmp, u2_banks->com + U3P_USBPHYACR3); break; case PHY_MODE_DPPULLUP_CLR: tmp = readl(u2_banks->com + U3P_USBPHYACR3); tmp &= ~(PA3_RG_USB20_PUPD_BIST_EN | PA3_RG_USB20_EN_PU_DP); writel(tmp, u2_banks->com + U3P_USBPHYACR3); break; default: return; } } static void u3_phy_instance_power_on(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u3phy_banks *bank = &instance->u3_banks; u32 index = instance->index; u32 tmp; tmp = readl(bank->chip + U3P_U3_CHIP_GPIO_CTLD); tmp &= ~(P3C_FORCE_IP_SW_RST | P3C_REG_IP_SW_RST); writel(tmp, bank->chip + U3P_U3_CHIP_GPIO_CTLD); tmp = readl(bank->chip + U3P_U3_CHIP_GPIO_CTLE); tmp &= ~(P3C_RG_SWRST_U3_PHYD_FORCE_EN | P3C_RG_SWRST_U3_PHYD); writel(tmp, bank->chip + U3P_U3_CHIP_GPIO_CTLE); dev_info(tphy->dev, "%s(%d)\n", __func__, index); } static void u3_phy_instance_power_off(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u3phy_banks *bank = &instance->u3_banks; u32 index = instance->index; u32 tmp; tmp = readl(bank->chip + U3P_U3_CHIP_GPIO_CTLD); tmp |= P3C_FORCE_IP_SW_RST | P3C_REG_IP_SW_RST; writel(tmp, bank->chip + U3P_U3_CHIP_GPIO_CTLD); tmp = readl(bank->chip + U3P_U3_CHIP_GPIO_CTLE); tmp |= P3C_RG_SWRST_U3_PHYD_FORCE_EN | P3C_RG_SWRST_U3_PHYD; writel(tmp, bank->chip + U3P_U3_CHIP_GPIO_CTLE); dev_info(tphy->dev, "%s(%d)\n", __func__, index); } static void pcie_phy_instance_init(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u3phy_banks *u3_banks = &instance->u3_banks; u32 tmp; if (tphy->pdata->version != MTK_PHY_V1) return; tmp = readl(u3_banks->phya + U3P_U3_PHYA_DA_REG0); tmp &= ~(P3A_RG_XTAL_EXT_PE1H | P3A_RG_XTAL_EXT_PE2H); tmp |= P3A_RG_XTAL_EXT_PE1H_VAL(0x2) | P3A_RG_XTAL_EXT_PE2H_VAL(0x2); writel(tmp, u3_banks->phya + U3P_U3_PHYA_DA_REG0); /* ref clk drive */ tmp = readl(u3_banks->phya + U3P_U3_PHYA_REG1); tmp &= ~P3A_RG_CLKDRV_AMP; tmp |= P3A_RG_CLKDRV_AMP_VAL(0x4); writel(tmp, u3_banks->phya + U3P_U3_PHYA_REG1); tmp = readl(u3_banks->phya + U3P_U3_PHYA_REG0); tmp &= ~P3A_RG_CLKDRV_OFF; tmp |= P3A_RG_CLKDRV_OFF_VAL(0x1); writel(tmp, u3_banks->phya + U3P_U3_PHYA_REG0); /* SSC delta -5000ppm */ tmp = readl(u3_banks->phya + U3P_U3_PHYA_DA_REG20); tmp &= ~P3A_RG_PLL_DELTA1_PE2H; tmp |= P3A_RG_PLL_DELTA1_PE2H_VAL(0x3c); writel(tmp, u3_banks->phya + U3P_U3_PHYA_DA_REG20); tmp = readl(u3_banks->phya + U3P_U3_PHYA_DA_REG25); tmp &= ~P3A_RG_PLL_DELTA_PE2H; tmp |= P3A_RG_PLL_DELTA_PE2H_VAL(0x36); writel(tmp, u3_banks->phya + U3P_U3_PHYA_DA_REG25); /* change pll BW 0.6M */ tmp = readl(u3_banks->phya + U3P_U3_PHYA_DA_REG5); tmp &= ~(P3A_RG_PLL_BR_PE2H | P3A_RG_PLL_IC_PE2H); tmp |= P3A_RG_PLL_BR_PE2H_VAL(0x1) | P3A_RG_PLL_IC_PE2H_VAL(0x1); writel(tmp, u3_banks->phya + U3P_U3_PHYA_DA_REG5); tmp = readl(u3_banks->phya + U3P_U3_PHYA_DA_REG4); tmp &= ~(P3A_RG_PLL_DIVEN_PE2H | P3A_RG_PLL_BC_PE2H); tmp |= P3A_RG_PLL_BC_PE2H_VAL(0x3); writel(tmp, u3_banks->phya + U3P_U3_PHYA_DA_REG4); tmp = readl(u3_banks->phya + U3P_U3_PHYA_DA_REG6); tmp &= ~P3A_RG_PLL_IR_PE2H; tmp |= P3A_RG_PLL_IR_PE2H_VAL(0x2); writel(tmp, u3_banks->phya + U3P_U3_PHYA_DA_REG6); tmp = readl(u3_banks->phya + U3P_U3_PHYA_DA_REG7); tmp &= ~P3A_RG_PLL_BP_PE2H; tmp |= P3A_RG_PLL_BP_PE2H_VAL(0xa); writel(tmp, u3_banks->phya + U3P_U3_PHYA_DA_REG7); /* Tx Detect Rx Timing: 10us -> 5us */ tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RXDET1); tmp &= ~P3D_RG_RXDET_STB2_SET; tmp |= P3D_RG_RXDET_STB2_SET_VAL(0x10); writel(tmp, u3_banks->phyd + U3P_U3_PHYD_RXDET1); tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RXDET2); tmp &= ~P3D_RG_RXDET_STB2_SET_P3; tmp |= P3D_RG_RXDET_STB2_SET_P3_VAL(0x10); writel(tmp, u3_banks->phyd + U3P_U3_PHYD_RXDET2); /* wait for PCIe subsys register to active */ usleep_range(2500, 3000); dev_dbg(tphy->dev, "%s(%d)\n", __func__, instance->index); } static void pcie_phy_instance_power_on(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u3phy_banks *bank = &instance->u3_banks; u32 tmp; tmp = readl(bank->chip + U3P_U3_CHIP_GPIO_CTLD); tmp &= ~(P3C_FORCE_IP_SW_RST | P3C_REG_IP_SW_RST); writel(tmp, bank->chip + U3P_U3_CHIP_GPIO_CTLD); tmp = readl(bank->chip + U3P_U3_CHIP_GPIO_CTLE); tmp &= ~(P3C_RG_SWRST_U3_PHYD_FORCE_EN | P3C_RG_SWRST_U3_PHYD); writel(tmp, bank->chip + U3P_U3_CHIP_GPIO_CTLE); } static void pcie_phy_instance_power_off(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u3phy_banks *bank = &instance->u3_banks; u32 tmp; tmp = readl(bank->chip + U3P_U3_CHIP_GPIO_CTLD); tmp |= P3C_FORCE_IP_SW_RST | P3C_REG_IP_SW_RST; writel(tmp, bank->chip + U3P_U3_CHIP_GPIO_CTLD); tmp = readl(bank->chip + U3P_U3_CHIP_GPIO_CTLE); tmp |= P3C_RG_SWRST_U3_PHYD_FORCE_EN | P3C_RG_SWRST_U3_PHYD; writel(tmp, bank->chip + U3P_U3_CHIP_GPIO_CTLE); } static void sata_phy_instance_init(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u3phy_banks *u3_banks = &instance->u3_banks; void __iomem *phyd = u3_banks->phyd; u32 tmp; /* charge current adjustment */ tmp = readl(phyd + ANA_RG_CTRL_SIGNAL6); tmp &= ~(RG_CDR_BIRLTR_GEN1_MSK | RG_CDR_BC_GEN1_MSK); tmp |= RG_CDR_BIRLTR_GEN1_VAL(0x6) | RG_CDR_BC_GEN1_VAL(0x1a); writel(tmp, phyd + ANA_RG_CTRL_SIGNAL6); tmp = readl(phyd + ANA_EQ_EYE_CTRL_SIGNAL4); tmp &= ~RG_CDR_BIRLTD0_GEN1_MSK; tmp |= RG_CDR_BIRLTD0_GEN1_VAL(0x18); writel(tmp, phyd + ANA_EQ_EYE_CTRL_SIGNAL4); tmp = readl(phyd + ANA_EQ_EYE_CTRL_SIGNAL5); tmp &= ~RG_CDR_BIRLTD0_GEN3_MSK; tmp |= RG_CDR_BIRLTD0_GEN3_VAL(0x06); writel(tmp, phyd + ANA_EQ_EYE_CTRL_SIGNAL5); tmp = readl(phyd + ANA_RG_CTRL_SIGNAL4); tmp &= ~(RG_CDR_BICLTR_GEN1_MSK | RG_CDR_BR_GEN2_MSK); tmp |= RG_CDR_BICLTR_GEN1_VAL(0x0c) | RG_CDR_BR_GEN2_VAL(0x07); writel(tmp, phyd + ANA_RG_CTRL_SIGNAL4); tmp = readl(phyd + PHYD_CTRL_SIGNAL_MODE4); tmp &= ~(RG_CDR_BICLTD0_GEN1_MSK | RG_CDR_BICLTD1_GEN1_MSK); tmp |= RG_CDR_BICLTD0_GEN1_VAL(0x08) | RG_CDR_BICLTD1_GEN1_VAL(0x02); writel(tmp, phyd + PHYD_CTRL_SIGNAL_MODE4); tmp = readl(phyd + PHYD_DESIGN_OPTION2); tmp &= ~RG_LOCK_CNT_SEL_MSK; tmp |= RG_LOCK_CNT_SEL_VAL(0x02); writel(tmp, phyd + PHYD_DESIGN_OPTION2); tmp = readl(phyd + PHYD_DESIGN_OPTION9); tmp &= ~(RG_T2_MIN_MSK | RG_TG_MIN_MSK | RG_T2_MAX_MSK | RG_TG_MAX_MSK); tmp |= RG_T2_MIN_VAL(0x12) | RG_TG_MIN_VAL(0x04) | RG_T2_MAX_VAL(0x31) | RG_TG_MAX_VAL(0x0e); writel(tmp, phyd + PHYD_DESIGN_OPTION9); tmp = readl(phyd + ANA_RG_CTRL_SIGNAL1); tmp &= ~RG_IDRV_0DB_GEN1_MSK; tmp |= RG_IDRV_0DB_GEN1_VAL(0x20); writel(tmp, phyd + ANA_RG_CTRL_SIGNAL1); tmp = readl(phyd + ANA_EQ_EYE_CTRL_SIGNAL1); tmp &= ~RG_EQ_DLEQ_LFI_GEN1_MSK; tmp |= RG_EQ_DLEQ_LFI_GEN1_VAL(0x03); writel(tmp, phyd + ANA_EQ_EYE_CTRL_SIGNAL1); dev_dbg(tphy->dev, "%s(%d)\n", __func__, instance->index); } static void phy_v1_banks_init(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u2phy_banks *u2_banks = &instance->u2_banks; struct u3phy_banks *u3_banks = &instance->u3_banks; switch (instance->type) { case PHY_TYPE_USB2: u2_banks->misc = NULL; u2_banks->fmreg = tphy->sif_base + SSUSB_SIFSLV_V1_U2FREQ; u2_banks->com = instance->port_base + SSUSB_SIFSLV_V1_U2PHY_COM; break; case PHY_TYPE_USB3: case PHY_TYPE_PCIE: u3_banks->spllc = tphy->sif_base + SSUSB_SIFSLV_V1_SPLLC; u3_banks->chip = tphy->sif_base + SSUSB_SIFSLV_V1_CHIP; u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V1_U3PHYD; u3_banks->phya = instance->port_base + SSUSB_SIFSLV_V1_U3PHYA; break; case PHY_TYPE_SATA: u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V1_U3PHYD; break; default: dev_err(tphy->dev, "incompatible PHY type\n"); return; } } #ifdef CONFIG_MACH_MT6771 static struct mtk_phy_instance *bc11_instance; #endif static void phy_v2_banks_init(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u2phy_banks *u2_banks = &instance->u2_banks; struct u3phy_banks *u3_banks = &instance->u3_banks; switch (instance->type) { case PHY_TYPE_USB2: u2_banks->misc = instance->port_base + SSUSB_SIFSLV_V2_MISC; u2_banks->fmreg = instance->port_base + SSUSB_SIFSLV_V2_U2FREQ; u2_banks->com = instance->port_base + SSUSB_SIFSLV_V2_U2PHY_COM; break; case PHY_TYPE_USB3: case PHY_TYPE_PCIE: u3_banks->spllc = instance->port_base + SSUSB_SIFSLV_V2_SPLLC; u3_banks->chip = instance->port_base + SSUSB_SIFSLV_V2_CHIP; u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V2_U3PHYD; u3_banks->phya = instance->port_base + SSUSB_SIFSLV_V2_U3PHYA; break; default: dev_err(tphy->dev, "incompatible PHY type\n"); return; } } static void phy_parse_property(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct device *dev = &instance->phy->dev; u32 val; if (instance->type != PHY_TYPE_USB2) return; instance->bc12_en = device_property_read_bool(dev, "mediatek,bc12"); u2_phy_set_default_value(instance); if (!device_property_read_u32(dev, "mediatek,eye-src", &val)) instance->eye_src = val; if (!device_property_read_u32(dev, "mediatek,eye-vrt", &val)) instance->eye_vrt = val; if (!device_property_read_u32(dev, "mediatek,eye-term", &val)) instance->eye_term = val; if (!device_property_read_u32(dev, "mediatek,eye-rev4", &val)) instance->eye_rev4 = val; if (!device_property_read_u32(dev, "mediatek,eye-rev6", &val)) instance->eye_rev6 = val; if (!device_property_read_u32(dev, "mediatek,eye-disc", &val)) instance->eye_disc = val; if(!device_property_read_u32(dev, "mediatek,eye-sqth", &val)) instance->eye_sqth = val; if(!device_property_read_u32(dev, "mediatek,eye-intr_cal", &val)) instance->eye_intr_cal = val; if(!device_property_read_u32(dev, "mediatek,eye-hstx_srctrl", &val)) instance->eye_hstx_srctrl = val; #ifdef CONFIG_SAMSUNG_PHY_TUNE if(!device_property_read_u32(dev, "mediatek,eye-bgr_en", &val)) instance->eye_bgr_en = val; if(!device_property_read_u32(dev, "mediatek,eye-intr_en", &val)) instance->eye_intr_en = val; if(!device_property_read_u32(dev, "mediatek,eye-mpx_out_sel", &val)) instance->eye_mpx_out_sel = val; if(!device_property_read_u32(dev, "mediatek,eye-hstx_srcal_en", &val)) instance->eye_hstx_srcal_en = val; #endif dev_dbg(dev, "bc12:%d, src:%d, vrt:%d, term:%d, rev4:%d", instance->bc12_en, instance->eye_src, instance->eye_vrt, instance->eye_term, instance->eye_rev4); dev_dbg(dev, "rev6:%d, disc:%d, sqth:%d, intr_cal:%d, hstx_srctrl:$d\n", instance->eye_rev6, instance->eye_disc, instance->eye_sqth, instance->eye_intr_cal, instance->eye_hstx_srctrl); #ifdef CONFIG_SAMSUNG_PHY_TUNE dev_dbg(dev, "bgr_en:%d, intr_en:%d, mpx_out_sel:%d, hstx_srcal_en:%d\n", instance->eye_bgr_en, instance->eye_intr_en, instance->eye_mpx_out_sel, instance->eye_hstx_srcal_en); #endif } static void u2_phy_props_set(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u2phy_banks *u2_banks = &instance->u2_banks; void __iomem *com = u2_banks->com; struct device *dev = &instance->phy->dev; u32 tmp; dev_info(dev, "%s, bc12:%d, src:%d, vrt:%d, term:%d, rev4:%d", __func__, instance->bc12_en, instance->eye_src, instance->eye_vrt, instance->eye_term, instance->eye_rev4); dev_info(dev, "%s, rev6:%d, dis:%d sqth:%d intr_cal:%d hstx_srctrl:%d\n", __func__, instance-> eye_rev6, instance->eye_disc, instance->eye_sqth, instance->eye_intr_cal, instance->eye_hstx_srctrl); #ifdef CONFIG_SAMSUNG_PHY_TUNE dev_info(dev, "%s, bgr_en:%d, intr_en:%d, mpx_out_sel:%d, hstx_srcal_en:%d\n", __func__, instance->eye_bgr_en, instance->eye_intr_en, instance->eye_mpx_out_sel, instance->eye_hstx_srcal_en); #endif #ifdef CONFIG_ADB_PHY_TUNING if (phy_tuning_mode == true) return; #endif if (instance->bc12_en) { tmp = readl(com + U3P_U2PHYBC12C); tmp |= P2C_RG_CHGDT_EN; /* BC1.2 path Enable */ writel(tmp, com + U3P_U2PHYBC12C); } if (instance->eye_src >= 0) { tmp = readl(com + U3P_USBPHYACR5); tmp &= ~PA5_RG_U2_HSTX_SRCTRL; tmp |= PA5_RG_U2_HSTX_SRCTRL_VAL(instance->eye_src); writel(tmp, com + U3P_USBPHYACR5); } if (instance->eye_vrt >= 0) { tmp = readl(com + U3P_USBPHYACR1); tmp &= ~PA1_RG_VRT_SEL; tmp |= PA1_RG_VRT_SEL_VAL(instance->eye_vrt); writel(tmp, com + U3P_USBPHYACR1); } if (instance->eye_term >= 0) { tmp = readl(com + U3P_USBPHYACR1); tmp &= ~PA1_RG_TERM_SEL; tmp |= PA1_RG_TERM_SEL_VAL(instance->eye_term); writel(tmp, com + U3P_USBPHYACR1); } if (instance->eye_rev4 >= 0) { tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_PHY_REV4; tmp |= PA6_RG_U2_PHY_REV4_VAL(instance->eye_rev4); writel(tmp, com + U3P_USBPHYACR6); } if (instance->eye_rev6 >= 0) { tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_PHY_REV6; tmp |= PA6_RG_U2_PHY_REV6_VAL(instance->eye_rev6); writel(tmp, com + U3P_USBPHYACR6); } if (instance->eye_disc >= 0) { tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_DISCTH; tmp |= PA6_RG_U2_DISCTH_VAL(instance->eye_disc); writel(tmp, com + U3P_USBPHYACR6); } if (instance->eye_sqth >= 0) { tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_SQTH; tmp |= PA6_RG_U2_SQTH_VAL(instance->eye_sqth); writel(tmp, com + U3P_USBPHYACR6); } if (instance->eye_intr_cal >= 0) { tmp = readl(com + U3P_USBPHYACR1); tmp &= ~PA1_RG_U2_INTR_CAL; tmp |= PA1_RG_U2_INTR_CAL_VAL(instance->eye_intr_cal); writel(tmp, com + U3P_USBPHYACR1); } if (instance->eye_hstx_srctrl >= 0) { tmp = readl(com + U3P_USBPHYACR5); tmp &= ~PA5_RG_U2_HSTX_SRCTRL; tmp |= PA5_RG_U2_HSTX_SRCTRL_VAL(instance->eye_hstx_srctrl); writel(tmp, com + U3P_USBPHYACR5); } #ifdef CONFIG_SAMSUNG_PHY_TUNE if (instance->eye_bgr_en >= 0) { tmp = readl(com + U3P_USBPHYACR0); tmp &= ~PA0_RG_BGR_EN; tmp |= PA0_RG_BGR_EN_VAL(instance->eye_bgr_en); writel(tmp, com + U3P_USBPHYACR0); } if (instance->eye_intr_en >= 0) { tmp = readl(com + U3P_USBPHYACR0); tmp &= ~PA0_RG_USB20_INTR_EN; tmp |= PA0_RG_USB20_INTR_EN_VAL(instance->eye_intr_en); writel(tmp, com + U3P_USBPHYACR0); } if (instance->eye_mpx_out_sel >= 0) { tmp = readl(com + U3P_USBPHYACR0); tmp &= ~PA0_RG_MPX_OUT_SEL; tmp |= PA0_RG_MPX_OUT_SEL_VAL(instance->eye_mpx_out_sel); writel(tmp, com + U3P_USBPHYACR0); } if (instance->eye_hstx_srcal_en >= 0) { tmp = readl(com + U3P_USBPHYACR5); tmp &= ~PA5_RG_U2_HSTX_SRCAL_EN; tmp |= PA5_RG_U2_HSTX_SRCAL_EN_VAL(instance->eye_hstx_srcal_en); writel(tmp, com + U3P_USBPHYACR5); } #endif #ifdef CONFIG_MACH_MT6771 if ((tphy->phys[0] == instance) && (instance->type == PHY_TYPE_USB2)) bc11_instance = instance; #endif } static int mtk_phy_init(struct phy *phy) { struct mtk_phy_instance *instance = phy_get_drvdata(phy); struct mtk_tphy *tphy = dev_get_drvdata(phy->dev.parent); int ret; ret = clk_prepare_enable(tphy->u3phya_ref); if (ret) { dev_err(tphy->dev, "failed to enable u3phya_ref\n"); return ret; } ret = clk_prepare_enable(instance->ref_clk); if (ret) { dev_err(tphy->dev, "failed to enable ref_clk\n"); return ret; } ret = u2_phy_instance_get_mode_ext(tphy, instance); if (ret == PHY_MODE_UART) return 0; switch (instance->type) { case PHY_TYPE_USB2: u2_phy_instance_init(tphy, instance); u2_phy_efuse_set(tphy, instance); u2_phy_props_set(tphy, instance); u2_phy_procfs_init(tphy, instance); break; case PHY_TYPE_USB3: u3_phy_instance_init(tphy, instance); u3_phy_efuse_set(tphy, instance); u3_phy_procfs_init(tphy, instance); break; case PHY_TYPE_PCIE: pcie_phy_instance_init(tphy, instance); break; case PHY_TYPE_SATA: sata_phy_instance_init(tphy, instance); break; default: dev_err(tphy->dev, "incompatible PHY type\n"); return -EINVAL; } return 0; } static int mtk_phy_power_on(struct phy *phy) { struct mtk_phy_instance *instance = phy_get_drvdata(phy); struct mtk_tphy *tphy = dev_get_drvdata(phy->dev.parent); if (instance->type == PHY_TYPE_USB2) { u2_phy_instance_power_on(tphy, instance); hs_slew_rate_calibrate(tphy, instance); } else if (instance->type == PHY_TYPE_USB3) { u3_phy_instance_power_on(tphy, instance); } else if (instance->type == PHY_TYPE_PCIE) { pcie_phy_instance_power_on(tphy, instance); } return 0; } static int mtk_phy_power_off(struct phy *phy) { struct mtk_phy_instance *instance = phy_get_drvdata(phy); struct mtk_tphy *tphy = dev_get_drvdata(phy->dev.parent); if (instance->type == PHY_TYPE_USB2) u2_phy_instance_power_off(tphy, instance); else if (instance->type == PHY_TYPE_USB3) u3_phy_instance_power_off(tphy, instance); else if (instance->type == PHY_TYPE_PCIE) pcie_phy_instance_power_off(tphy, instance); return 0; } static int mtk_phy_exit(struct phy *phy) { struct mtk_phy_instance *instance = phy_get_drvdata(phy); struct mtk_tphy *tphy = dev_get_drvdata(phy->dev.parent); if (instance->type == PHY_TYPE_USB2) { u2_phy_instance_exit(tphy, instance); u2_phy_procfs_exit(instance); } if (instance->type == PHY_TYPE_USB3) u3_phy_procfs_exit(instance); clk_disable_unprepare(instance->ref_clk); clk_disable_unprepare(tphy->u3phya_ref); return 0; } static int mtk_phy_get_mode_ext(struct phy *phy) { struct mtk_phy_instance *instance = phy_get_drvdata(phy); struct mtk_tphy *tphy = dev_get_drvdata(phy->dev.parent); int ret; ret = 0; if (instance->type == PHY_TYPE_USB2) ret = u2_phy_instance_get_mode_ext(tphy, instance); return ret; } static int mtk_phy_set_mode(struct phy *phy, enum phy_mode mode, int submode) { struct mtk_phy_instance *instance = phy_get_drvdata(phy); struct mtk_tphy *tphy = dev_get_drvdata(phy->dev.parent); if (instance->type == PHY_TYPE_USB2) { if (submode) u2_phy_instance_set_mode_ext(tphy, instance, submode); else u2_phy_instance_set_mode(tphy, instance, mode); } return 0; } static struct phy *mtk_phy_xlate(struct device *dev, struct of_phandle_args *args) { struct mtk_tphy *tphy = dev_get_drvdata(dev); struct mtk_phy_instance *instance = NULL; struct device_node *phy_np = args->np; int index; if (args->args_count != 1) { dev_err(dev, "invalid number of cells in 'phy' property\n"); return ERR_PTR(-EINVAL); } for (index = 0; index < tphy->nphys; index++) if (phy_np == tphy->phys[index]->phy->dev.of_node) { instance = tphy->phys[index]; break; } if (!instance) { dev_err(dev, "failed to find appropriate phy\n"); return ERR_PTR(-EINVAL); } instance->type = args->args[0]; if (!(instance->type == PHY_TYPE_USB2 || instance->type == PHY_TYPE_USB3 || instance->type == PHY_TYPE_PCIE || instance->type == PHY_TYPE_SATA)) { dev_err(dev, "unsupported device type: %d\n", instance->type); return ERR_PTR(-EINVAL); } if (tphy->pdata->version == MTK_PHY_V1) { phy_v1_banks_init(tphy, instance); } else if (tphy->pdata->version == MTK_PHY_V2) { phy_v2_banks_init(tphy, instance); } else { dev_err(dev, "phy version is not supported\n"); return ERR_PTR(-EINVAL); } phy_parse_property(tphy, instance); return instance->phy; } static const struct phy_ops mtk_tphy_ops = { .init = mtk_phy_init, .exit = mtk_phy_exit, .power_on = mtk_phy_power_on, .power_off = mtk_phy_power_off, .set_mode = mtk_phy_set_mode, .get_mode_ext = mtk_phy_get_mode_ext, .owner = THIS_MODULE, }; static const struct mtk_phy_pdata tphy_v1_pdata = { .avoid_rx_sen_degradation = false, .version = MTK_PHY_V1, }; static const struct mtk_phy_pdata tphy_v2_pdata = { .avoid_rx_sen_degradation = false, .version = MTK_PHY_V2, }; static const struct mtk_phy_pdata mt8173_pdata = { .avoid_rx_sen_degradation = true, .version = MTK_PHY_V1, }; static const struct of_device_id mtk_tphy_id_table[] = { { .compatible = "mediatek,mt2701-u3phy", .data = &tphy_v1_pdata }, { .compatible = "mediatek,mt2712-u3phy", .data = &tphy_v2_pdata }, { .compatible = "mediatek,mt8173-u3phy", .data = &mt8173_pdata }, { .compatible = "mediatek,generic-tphy-v1", .data = &tphy_v1_pdata }, { .compatible = "mediatek,generic-tphy-v2", .data = &tphy_v2_pdata }, { }, }; MODULE_DEVICE_TABLE(of, mtk_tphy_id_table); static int mtk_tphy_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; struct device_node *child_np; struct phy_provider *provider; struct resource *sif_res; struct mtk_tphy *tphy; struct resource res; int port, retval; tphy = devm_kzalloc(dev, sizeof(*tphy), GFP_KERNEL); if (!tphy) return -ENOMEM; tphy->pdata = of_device_get_match_data(dev); if (!tphy->pdata) return -EINVAL; tphy->nphys = of_get_child_count(np); tphy->phys = devm_kcalloc(dev, tphy->nphys, sizeof(*tphy->phys), GFP_KERNEL); if (!tphy->phys) return -ENOMEM; retval = device_rename(dev, np->name); if (retval) dev_info(&pdev->dev, "failed to rename\n"); /* fix uaf(use after free) issue: backup pdev->name, * device_rename will free pdev->name */ pdev->name = pdev->dev.kobj.name; tphy->dev = dev; platform_set_drvdata(pdev, tphy); sif_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); /* SATA phy of V1 needn't it if not shared with PCIe or USB */ if (sif_res && tphy->pdata->version == MTK_PHY_V1) { /* get banks shared by multiple phys */ tphy->sif_base = devm_ioremap_resource(dev, sif_res); if (IS_ERR(tphy->sif_base)) { dev_err(dev, "failed to remap sif regs\n"); return PTR_ERR(tphy->sif_base); } } /* it's deprecated, make it optional for backward compatibility */ tphy->u3phya_ref = devm_clk_get_optional(dev, "u3phya_ref"); if (IS_ERR(tphy->u3phya_ref)) return PTR_ERR(tphy->u3phya_ref); tphy->src_ref_clk = U3P_REF_CLK; tphy->src_coef = U3P_SLEW_RATE_COEF; /* update parameters of slew rate calibrate if exist */ device_property_read_u32(dev, "mediatek,src-ref-clk-mhz", &tphy->src_ref_clk); device_property_read_u32(dev, "mediatek,src-coef", &tphy->src_coef); port = 0; for_each_child_of_node(np, child_np) { struct mtk_phy_instance *instance; struct phy *phy; instance = devm_kzalloc(dev, sizeof(*instance), GFP_KERNEL); if (!instance) { retval = -ENOMEM; goto put_child; } tphy->phys[port] = instance; phy = devm_phy_create(dev, child_np, &mtk_tphy_ops); if (IS_ERR(phy)) { dev_err(dev, "failed to create phy\n"); retval = PTR_ERR(phy); goto put_child; } retval = of_address_to_resource(child_np, 0, &res); if (retval) { dev_err(dev, "failed to get address resource(id-%d)\n", port); goto put_child; } instance->port_base = devm_ioremap_resource(&phy->dev, &res); if (IS_ERR(instance->port_base)) { dev_err(dev, "failed to remap phy regs\n"); retval = PTR_ERR(instance->port_base); goto put_child; } instance->phy = phy; instance->index = port; phy_set_drvdata(phy, instance); port++; /* if deprecated clock is provided, ignore instance's one */ if (tphy->u3phya_ref) continue; instance->ref_clk = devm_clk_get(&phy->dev, "ref"); if (IS_ERR(instance->ref_clk)) { dev_err(dev, "failed to get ref_clk(id-%d)\n", port); retval = PTR_ERR(instance->ref_clk); goto put_child; } } mtk_phy_procfs_init(tphy); provider = devm_of_phy_provider_register(dev, mtk_phy_xlate); return PTR_ERR_OR_ZERO(provider); put_child: of_node_put(child_np); return retval; } static int mtk_tphy_remove(struct platform_device *pdev) { struct mtk_tphy *tphy = dev_get_drvdata(&pdev->dev); mtk_phy_procfs_exit(tphy); return 0; } static struct platform_driver mtk_tphy_driver = { .probe = mtk_tphy_probe, .remove = mtk_tphy_remove, .driver = { .name = "mtk-tphy", .of_match_table = mtk_tphy_id_table, }, }; module_platform_driver(mtk_tphy_driver); #ifdef CONFIG_MACH_MT6771 void Charger_Detect_Init(void) { struct u2phy_banks *u2_banks; void __iomem *com; u32 tmp; if (!bc11_instance) return; u2_banks = &bc11_instance->u2_banks; com = u2_banks->com; tmp = readl(com + U3P_USBPHYACR6); tmp |= PA6_RG_U2_BC11_SW_EN; /* DP/DM BC1.1 path Disable */ writel(tmp, com + U3P_USBPHYACR6); } EXPORT_SYMBOL_GPL(Charger_Detect_Init); void Charger_Detect_Release(void) { struct u2phy_banks *u2_banks; void __iomem *com; u32 tmp; if (!bc11_instance) return; u2_banks = &bc11_instance->u2_banks; com = u2_banks->com; tmp = readl(com + U3P_USBPHYACR6); tmp &= ~PA6_RG_U2_BC11_SW_EN; /* DP/DM BC1.1 path Disable */ writel(tmp, com + U3P_USBPHYACR6); } EXPORT_SYMBOL_GPL(Charger_Detect_Release); #endif MODULE_AUTHOR("Chunfeng Yun "); MODULE_DESCRIPTION("MediaTek T-PHY driver"); MODULE_LICENSE("GPL v2");