| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Chunfeng Yun | 3453 | 59.32% | 21 | 80.77% |
| Ryder Lee | 2329 | 40.01% | 2 | 7.69% |
| Julia Lawall | 35 | 0.60% | 1 | 3.85% |
| Grygorii Strashko | 3 | 0.05% | 1 | 3.85% |
| Bhumika Goyal | 1 | 0.02% | 1 | 3.85% |
| Total | 5821 | 26 |
// SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2015 MediaTek Inc. * Author: Chunfeng Yun <chunfeng.yun@mediatek.com> * */ #include <dt-bindings/phy/phy.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/iopoll.h> #include <linux/module.h> #include <linux/of_address.h> #include <linux/of_device.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> /* 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) #define U3P_USBPHYACR1 0x004 #define PA1_RG_VRT_SEL GENMASK(14, 12) #define PA1_RG_VRT_SEL_VAL(x) ((0x7 & (x)) << 12) #define PA1_RG_TERM_SEL GENMASK(10, 8) #define PA1_RG_TERM_SEL_VAL(x) ((0x7 & (x)) << 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) #define PA5_RG_U2_HSTX_SRCTRL GENMASK(14, 12) #define PA5_RG_U2_HSTX_SRCTRL_VAL(x) ((0x7 & (x)) << 12) #define PA5_RG_U2_HS_100U_U3_EN BIT(11) #define U3P_USBPHYACR6 0x018 #define PA6_RG_U2_BC11_SW_EN BIT(23) #define PA6_RG_U2_OTG_VBUSCMP_EN BIT(20) #define PA6_RG_U2_SQTH GENMASK(3, 0) #define PA6_RG_U2_SQTH_VAL(x) (0xf & (x)) #define U3P_U2PHYACR4 0x020 #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_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_TERMSEL | P2C_RG_DMPULLDOWN | \ P2C_RG_DPPULLDOWN | P2C_RG_TERMSEL) #define U3P_U2PHYDTM1 0x06C #define P2C_RG_UART_EN BIT(16) #define P2C_FORCE_IDDIG BIT(9) #define P2C_RG_VBUSVALID BIT(5) #define P2C_RG_SESSEND BIT(4) #define P2C_RG_AVALID BIT(2) #define P2C_RG_IDDIG BIT(1) #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_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 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_LFPS1 0x00c #define P3D_RG_FWAKE_TH GENMASK(21, 16) #define P3D_RG_FWAKE_TH_VAL(x) ((0x3f & (x)) << 16) #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)) enum mtk_phy_version { MTK_PHY_V1 = 1, MTK_PHY_V2, }; 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; bool bc12_en; }; 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 */ }; 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(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); /* disable USB ring oscillator */ tmp = readl(com + U3P_USBPHYACR5); tmp &= ~PA5_RG_U2_HSTX_SRCAL_EN; writel(tmp, com + U3P_USBPHYACR5); } 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; /* 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(2); writel(tmp, com + U3P_USBPHYACR6); dev_dbg(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_RG_XCVRSEL | P2C_RG_DATAIN | P2C_DTM0_PART_MASK); writel(tmp, com + U3P_U2PHYDTM0); /* 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); 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); } dev_dbg(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_RG_XCVRSEL | P2C_RG_DATAIN); writel(tmp, com + U3P_U2PHYDTM0); /* 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); 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_dbg(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(struct mtk_tphy *tphy, struct mtk_phy_instance *instance, enum phy_mode mode) { struct u2phy_banks *u2_banks = &instance->u2_banks; u32 tmp; tmp = readl(u2_banks->com + U3P_U2PHYDTM1); switch (mode) { case PHY_MODE_USB_DEVICE: tmp |= P2C_FORCE_IDDIG | P2C_RG_IDDIG; break; case PHY_MODE_USB_HOST: tmp |= P2C_FORCE_IDDIG; tmp &= ~P2C_RG_IDDIG; break; case PHY_MODE_USB_OTG: tmp &= ~(P2C_FORCE_IDDIG | P2C_RG_IDDIG); break; default: return; } writel(tmp, u2_banks->com + U3P_U2PHYDTM1); } 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; } } 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; if (instance->type != PHY_TYPE_USB2) return; instance->bc12_en = device_property_read_bool(dev, "mediatek,bc12"); device_property_read_u32(dev, "mediatek,eye-src", &instance->eye_src); device_property_read_u32(dev, "mediatek,eye-vrt", &instance->eye_vrt); device_property_read_u32(dev, "mediatek,eye-term", &instance->eye_term); dev_dbg(dev, "bc12:%d, src:%d, vrt:%d, term:%d\n", instance->bc12_en, instance->eye_src, instance->eye_vrt, instance->eye_term); } 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; u32 tmp; 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) { 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) { 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) { tmp = readl(com + U3P_USBPHYACR1); tmp &= ~PA1_RG_TERM_SEL; tmp |= PA1_RG_TERM_SEL_VAL(instance->eye_term); writel(tmp, com + U3P_USBPHYACR1); } } 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; } switch (instance->type) { case PHY_TYPE_USB2: u2_phy_instance_init(tphy, instance); u2_phy_props_set(tphy, instance); break; case PHY_TYPE_USB3: u3_phy_instance_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_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_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); clk_disable_unprepare(instance->ref_clk); clk_disable_unprepare(tphy->u3phya_ref); return 0; } 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) 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, .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; 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; } } 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 struct platform_driver mtk_tphy_driver = { .probe = mtk_tphy_probe, .driver = { .name = "mtk-tphy", .of_match_table = mtk_tphy_id_table, }, }; module_platform_driver(mtk_tphy_driver); MODULE_AUTHOR("Chunfeng Yun <chunfeng.yun@mediatek.com>"); MODULE_DESCRIPTION("MediaTek T-PHY driver"); MODULE_LICENSE("GPL v2");
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