diff options
Diffstat (limited to 'drivers/phy/mediatek/phy-mtk-tphy.c')
| -rw-r--r-- | drivers/phy/mediatek/phy-mtk-tphy.c | 687 |
1 files changed, 500 insertions, 187 deletions
diff --git a/drivers/phy/mediatek/phy-mtk-tphy.c b/drivers/phy/mediatek/phy-mtk-tphy.c index 6d307102f4f6..f6504e0ecd1a 100644 --- a/drivers/phy/mediatek/phy-mtk-tphy.c +++ b/drivers/phy/mediatek/phy-mtk-tphy.c @@ -7,13 +7,14 @@ #include <dt-bindings/phy/phy.h> #include <linux/clk.h> +#include <linux/debugfs.h> #include <linux/delay.h> #include <linux/iopoll.h> #include <linux/mfd/syscon.h> #include <linux/module.h> #include <linux/nvmem-consumer.h> +#include <linux/of.h> #include <linux/of_address.h> -#include <linux/of_device.h> #include <linux/phy/phy.h> #include <linux/platform_device.h> #include <linux/regmap.h> @@ -49,35 +50,28 @@ #define U3P_USBPHYACR0 0x000 #define PA0_RG_U2PLL_FORCE_ON BIT(15) #define PA0_USB20_PLL_PREDIV GENMASK(7, 6) -#define PA0_USB20_PLL_PREDIV_VAL(x) ((0x3 & (x)) << 6) #define PA0_RG_USB20_INTR_EN BIT(5) #define U3P_USBPHYACR1 0x004 #define PA1_RG_INTR_CAL GENMASK(23, 19) -#define PA1_RG_INTR_CAL_VAL(x) ((0x1f & (x)) << 19) #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_U2PLL_BW GENMASK(21, 19) -#define PA2_RG_U2PLL_BW_VAL(x) ((0x7 & (x)) << 19) #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_PRE_EMP GENMASK(31, 30) #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_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) @@ -104,11 +98,9 @@ #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 \ @@ -139,87 +131,69 @@ #define U3P_U3_PHYA_REG0 0x000 #define P3A_RG_IEXT_INTR GENMASK(15, 10) -#define P3A_RG_IEXT_INTR_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 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_IMPCAL0 0x010 #define P3D_RG_FORCE_TX_IMPEL BIT(31) #define P3D_RG_TX_IMPEL GENMASK(28, 24) -#define P3D_RG_TX_IMPEL_VAL(x) ((0x1f & (x)) << 24) #define U3P_U3_PHYD_IMPCAL1 0x014 #define P3D_RG_FORCE_RX_IMPEL BIT(31) #define P3D_RG_RX_IMPEL GENMASK(28, 24) -#define P3D_RG_RX_IMPEL_VAL(x) ((0x1f & (x)) << 24) #define U3P_U3_PHYD_RSV 0x054 #define P3D_RG_EFUSE_AUTO_LOAD_DIS BIT(12) #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_TOP1 0x100 +#define P3D_RG_PHY_MODE GENMASK(2, 1) +#define P3D_RG_FORCE_PHY_MODE BIT(0) #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) @@ -227,10 +201,8 @@ #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 @@ -238,8 +210,6 @@ #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 @@ -247,60 +217,45 @@ #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)) /* PHY switch between pcie/usb3/sgmii/sata */ #define USB_PHY_SWITCH_CTRL 0x0 @@ -312,26 +267,32 @@ #define TPHY_CLKS_CNT 2 +#define USER_BUF_LEN(count) min_t(size_t, 8, (count)) + enum mtk_phy_version { MTK_PHY_V1 = 1, MTK_PHY_V2, MTK_PHY_V3, }; +/** + * mtk_phy_pdata - SoC specific platform data + * @avoid_rx_sen_degradation: Avoid TX Sensitivity level degradation (MT6795/8173 only) + * @sw_pll_48m_to_26m: Workaround for V3 IP (MT8195) - switch the 48MHz PLL from + * fractional mode to integer to output 26MHz for U2PHY + * @sw_efuse_supported: Switches off eFuse auto-load from PHY and applies values + * read from different nvmem (usually different eFuse array) + * that is pointed at in the device tree node for this PHY + * @slew_ref_clk_mhz: Default reference clock (in MHz) for slew rate calibration + * @slew_rate_coefficient: Coefficient for slew rate calibration + * @version: PHY IP Version + */ struct mtk_phy_pdata { - /* avoid RX sensitivity level degradation only for mt8173 */ bool avoid_rx_sen_degradation; - /* - * workaround only for mt8195, HW fix it for others of V3, - * u2phy should use integer mode instead of fractional mode of - * 48M PLL, fix it by switching PLL to 26M from default 48M - */ bool sw_pll_48m_to_26m; - /* - * Some SoCs (e.g. mt8195) drop a bit when use auto load efuse, - * support sw way, also support it for v2/v3 optionally. - */ bool sw_efuse_supported; + u8 slew_ref_clock_mhz; + u8 slew_rate_coefficient; enum mtk_phy_version version; }; @@ -370,7 +331,9 @@ struct mtk_phy_instance { int eye_term; int intr; int discth; + int pre_emphasis; bool bc12_en; + bool type_force_mode; }; struct mtk_tphy { @@ -383,6 +346,338 @@ struct mtk_tphy { int src_coef; /* coefficient for slew rate calibrate */ }; +#if IS_ENABLED(CONFIG_DEBUG_FS) + +enum u2_phy_params { + U2P_EYE_VRT = 0, + U2P_EYE_TERM, + U2P_EFUSE_EN, + U2P_EFUSE_INTR, + U2P_DISCTH, + U2P_PRE_EMPHASIS, +}; + +enum u3_phy_params { + U3P_EFUSE_EN = 0, + U3P_EFUSE_INTR, + U3P_EFUSE_TX_IMP, + U3P_EFUSE_RX_IMP, +}; + +static const char *const u2_phy_files[] = { + [U2P_EYE_VRT] = "vrt", + [U2P_EYE_TERM] = "term", + [U2P_EFUSE_EN] = "efuse", + [U2P_EFUSE_INTR] = "intr", + [U2P_DISCTH] = "discth", + [U2P_PRE_EMPHASIS] = "preemph", +}; + +static const char *const u3_phy_files[] = { + [U3P_EFUSE_EN] = "efuse", + [U3P_EFUSE_INTR] = "intr", + [U3P_EFUSE_TX_IMP] = "tx-imp", + [U3P_EFUSE_RX_IMP] = "rx-imp", +}; + +static int u2_phy_params_show(struct seq_file *sf, void *unused) +{ + struct mtk_phy_instance *inst = sf->private; + struct u2phy_banks *u2_banks = &inst->u2_banks; + void __iomem *com = u2_banks->com; + u32 max = 0; + u32 tmp = 0; + u32 val = 0; + int ret = debugfs_get_aux_num(sf->file); + + switch (ret) { + case U2P_EYE_VRT: + tmp = readl(com + U3P_USBPHYACR1); + val = FIELD_GET(PA1_RG_VRT_SEL, tmp); + max = FIELD_MAX(PA1_RG_VRT_SEL); + break; + + case U2P_EYE_TERM: + tmp = readl(com + U3P_USBPHYACR1); + val = FIELD_GET(PA1_RG_TERM_SEL, tmp); + max = FIELD_MAX(PA1_RG_TERM_SEL); + break; + + case U2P_EFUSE_EN: + if (u2_banks->misc) { + tmp = readl(u2_banks->misc + U3P_MISC_REG1); + max = 1; + } + + val = !!(tmp & MR1_EFUSE_AUTO_LOAD_DIS); + break; + + case U2P_EFUSE_INTR: + tmp = readl(com + U3P_USBPHYACR1); + val = FIELD_GET(PA1_RG_INTR_CAL, tmp); + max = FIELD_MAX(PA1_RG_INTR_CAL); + break; + + case U2P_DISCTH: + tmp = readl(com + U3P_USBPHYACR6); + val = FIELD_GET(PA6_RG_U2_DISCTH, tmp); + max = FIELD_MAX(PA6_RG_U2_DISCTH); + break; + + case U2P_PRE_EMPHASIS: + tmp = readl(com + U3P_USBPHYACR6); + val = FIELD_GET(PA6_RG_U2_PRE_EMP, tmp); + max = FIELD_MAX(PA6_RG_U2_PRE_EMP); + break; + + default: + seq_printf(sf, "invalid, %d\n", ret); + break; + } + + seq_printf(sf, "%s : %d [0, %d]\n", u2_phy_files[ret], val, max); + + return 0; +} + +static int u2_phy_params_open(struct inode *inode, struct file *file) +{ + return single_open(file, u2_phy_params_show, inode->i_private); +} + +static ssize_t u2_phy_params_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct seq_file *sf = file->private_data; + struct mtk_phy_instance *inst = sf->private; + struct u2phy_banks *u2_banks = &inst->u2_banks; + void __iomem *com = u2_banks->com; + ssize_t rc; + u32 val; + int ret = debugfs_get_aux_num(file); + + rc = kstrtouint_from_user(ubuf, USER_BUF_LEN(count), 0, &val); + if (rc) + return rc; + + switch (ret) { + case U2P_EYE_VRT: + mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_VRT_SEL, val); + break; + + case U2P_EYE_TERM: + mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_TERM_SEL, val); + break; + + case U2P_EFUSE_EN: + if (u2_banks->misc) + mtk_phy_update_field(u2_banks->misc + U3P_MISC_REG1, + MR1_EFUSE_AUTO_LOAD_DIS, !!val); + break; + + case U2P_EFUSE_INTR: + mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_INTR_CAL, val); + break; + + case U2P_DISCTH: + mtk_phy_update_field(com + U3P_USBPHYACR6, PA6_RG_U2_DISCTH, val); + break; + + case U2P_PRE_EMPHASIS: + mtk_phy_update_field(com + U3P_USBPHYACR6, PA6_RG_U2_PRE_EMP, val); + break; + + default: + break; + } + + return count; +} + +static const struct file_operations u2_phy_fops = { + .open = u2_phy_params_open, + .write = u2_phy_params_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void u2_phy_dbgfs_files_create(struct mtk_phy_instance *inst) +{ + u32 count = ARRAY_SIZE(u2_phy_files); + int i; + + for (i = 0; i < count; i++) + debugfs_create_file_aux_num(u2_phy_files[i], 0644, inst->phy->debugfs, + inst, i, &u2_phy_fops); +} + +static int u3_phy_params_show(struct seq_file *sf, void *unused) +{ + struct mtk_phy_instance *inst = sf->private; + struct u3phy_banks *u3_banks = &inst->u3_banks; + u32 val = 0; + u32 max = 0; + u32 tmp; + int ret = debugfs_get_aux_num(sf->file); + + switch (ret) { + case U3P_EFUSE_EN: + tmp = readl(u3_banks->phyd + U3P_U3_PHYD_RSV); + val = !!(tmp & P3D_RG_EFUSE_AUTO_LOAD_DIS); + max = 1; + break; + + case U3P_EFUSE_INTR: + tmp = readl(u3_banks->phya + U3P_U3_PHYA_REG0); + val = FIELD_GET(P3A_RG_IEXT_INTR, tmp); + max = FIELD_MAX(P3A_RG_IEXT_INTR); + break; + + case U3P_EFUSE_TX_IMP: + tmp = readl(u3_banks->phyd + U3P_U3_PHYD_IMPCAL0); + val = FIELD_GET(P3D_RG_TX_IMPEL, tmp); + max = FIELD_MAX(P3D_RG_TX_IMPEL); + break; + + case U3P_EFUSE_RX_IMP: + tmp = readl(u3_banks->phyd + U3P_U3_PHYD_IMPCAL1); + val = FIELD_GET(P3D_RG_RX_IMPEL, tmp); + max = FIELD_MAX(P3D_RG_RX_IMPEL); + break; + + default: + seq_printf(sf, "invalid, %d\n", ret); + break; + } + + seq_printf(sf, "%s : %d [0, %d]\n", u3_phy_files[ret], val, max); + + return 0; +} + +static int u3_phy_params_open(struct inode *inode, struct file *file) +{ + return single_open(file, u3_phy_params_show, inode->i_private); +} + +static ssize_t u3_phy_params_write(struct file *file, const char __user *ubuf, + size_t count, loff_t *ppos) +{ + struct seq_file *sf = file->private_data; + struct mtk_phy_instance *inst = sf->private; + struct u3phy_banks *u3_banks = &inst->u3_banks; + void __iomem *phyd = u3_banks->phyd; + ssize_t rc; + u32 val; + int ret = debugfs_get_aux_num(sf->file); + + rc = kstrtouint_from_user(ubuf, USER_BUF_LEN(count), 0, &val); + if (rc) + return rc; + + switch (ret) { + case U3P_EFUSE_EN: + mtk_phy_update_field(phyd + U3P_U3_PHYD_RSV, + P3D_RG_EFUSE_AUTO_LOAD_DIS, !!val); + break; + + case U3P_EFUSE_INTR: + mtk_phy_update_field(u3_banks->phya + U3P_U3_PHYA_REG0, + P3A_RG_IEXT_INTR, val); + break; + + case U3P_EFUSE_TX_IMP: + mtk_phy_update_field(phyd + U3P_U3_PHYD_IMPCAL0, P3D_RG_TX_IMPEL, val); + mtk_phy_set_bits(phyd + U3P_U3_PHYD_IMPCAL0, P3D_RG_FORCE_TX_IMPEL); + break; + + case U3P_EFUSE_RX_IMP: + mtk_phy_update_field(phyd + U3P_U3_PHYD_IMPCAL1, P3D_RG_RX_IMPEL, val); + mtk_phy_set_bits(phyd + U3P_U3_PHYD_IMPCAL1, P3D_RG_FORCE_RX_IMPEL); + break; + + default: + break; + } + + return count; +} + +static const struct file_operations u3_phy_fops = { + .open = u3_phy_params_open, + .write = u3_phy_params_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static void u3_phy_dbgfs_files_create(struct mtk_phy_instance *inst) +{ + u32 count = ARRAY_SIZE(u3_phy_files); + int i; + + for (i = 0; i < count; i++) + debugfs_create_file_aux_num(u3_phy_files[i], 0644, inst->phy->debugfs, + inst, i, &u3_phy_fops); +} + +static int phy_type_show(struct seq_file *sf, void *unused) +{ + struct mtk_phy_instance *inst = sf->private; + const char *type; + + switch (inst->type) { + case PHY_TYPE_USB2: + type = "USB2"; + break; + case PHY_TYPE_USB3: + type = "USB3"; + break; + case PHY_TYPE_PCIE: + type = "PCIe"; + break; + case PHY_TYPE_SGMII: + type = "SGMII"; + break; + case PHY_TYPE_SATA: + type = "SATA"; + break; + default: + type = ""; + } + + seq_printf(sf, "%s\n", type); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(phy_type); + +/* these files will be removed when phy is released by phy core */ +static void phy_debugfs_init(struct mtk_phy_instance *inst) +{ + debugfs_create_file("type", 0444, inst->phy->debugfs, inst, &phy_type_fops); + + switch (inst->type) { + case PHY_TYPE_USB2: + u2_phy_dbgfs_files_create(inst); + break; + case PHY_TYPE_USB3: + case PHY_TYPE_PCIE: + u3_phy_dbgfs_files_create(inst); + break; + default: + break; + } +} + +#else + +static void phy_debugfs_init(struct mtk_phy_instance *inst) +{} + +#endif + static void hs_slew_rate_calibrate(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { @@ -393,12 +688,14 @@ static void hs_slew_rate_calibrate(struct mtk_tphy *tphy, int fm_out; u32 tmp; - /* HW V3 doesn't support slew rate cal anymore */ - if (tphy->pdata->version == MTK_PHY_V3) - return; - - /* use force value */ - if (instance->eye_src) + /* + * If a fixed HS slew rate (EYE) value was supplied, don't run the + * calibration sequence and prefer using that value instead; also, + * if there is no reference clock for slew calibration or there is + * no slew coefficient, this means that the slew rate calibration + * sequence is not supported. + */ + if (instance->eye_src || !tphy->src_ref_clk || !tphy->src_coef) return; /* enable USB ring oscillator */ @@ -411,9 +708,9 @@ static void hs_slew_rate_calibrate(struct mtk_tphy *tphy, /* 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); + tmp |= FIELD_PREP(P2F_RG_CYCLECNT, U3P_FM_DET_CYCLE_CNT); if (tphy->pdata->version == MTK_PHY_V1) - tmp |= P2F_RG_MONCLK_SEL_VAL(instance->index >> 1); + tmp |= FIELD_PREP(P2F_RG_MONCLK_SEL, instance->index >> 1); writel(tmp, fmreg + U3P_U2FREQ_FMCR0); @@ -446,8 +743,8 @@ static void hs_slew_rate_calibrate(struct mtk_tphy *tphy, tphy->src_ref_clk, tphy->src_coef); /* set HS slew rate */ - mtk_phy_update_bits(com + U3P_USBPHYACR5, PA5_RG_U2_HSTX_SRCTRL, - PA5_RG_U2_HSTX_SRCTRL_VAL(calibration_val)); + mtk_phy_update_field(com + U3P_USBPHYACR5, PA5_RG_U2_HSTX_SRCTRL, + calibration_val); /* disable USB ring oscillator */ mtk_phy_clear_bits(com + U3P_USBPHYACR5, PA5_RG_U2_HSTX_SRCAL_EN); @@ -457,33 +754,47 @@ static void u3_phy_instance_init(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { struct u3phy_banks *u3_banks = &instance->u3_banks; + void __iomem *phya = u3_banks->phya; + void __iomem *phyd = u3_banks->phyd; + + if (instance->type_force_mode) { + /* force phy as usb mode, default is pcie rc mode */ + mtk_phy_update_field(phyd + U3P_U3_PHYD_TOP1, P3D_RG_PHY_MODE, 1); + mtk_phy_set_bits(phyd + U3P_U3_PHYD_TOP1, P3D_RG_FORCE_PHY_MODE); + /* power down phy by ip and pipe reset */ + mtk_phy_set_bits(u3_banks->chip + U3P_U3_CHIP_GPIO_CTLD, + P3C_FORCE_IP_SW_RST | P3C_MCU_BUS_CK_GATE_EN); + mtk_phy_set_bits(u3_banks->chip + U3P_U3_CHIP_GPIO_CTLE, + P3C_RG_SWRST_U3_PHYD | P3C_RG_SWRST_U3_PHYD_FORCE_EN); + udelay(10); + /* power on phy again */ + mtk_phy_clear_bits(u3_banks->chip + U3P_U3_CHIP_GPIO_CTLD, + P3C_FORCE_IP_SW_RST | P3C_MCU_BUS_CK_GATE_EN); + mtk_phy_clear_bits(u3_banks->chip + U3P_U3_CHIP_GPIO_CTLE, + P3C_RG_SWRST_U3_PHYD | P3C_RG_SWRST_U3_PHYD_FORCE_EN); + } /* gating PCIe Analog XTAL clock */ mtk_phy_set_bits(u3_banks->spllc + U3P_SPLLC_XTALCTL3, XC3_RG_U3_XTAL_RX_PWD | XC3_RG_U3_FRC_XTAL_RX_PWD); /* gating XSQ */ - mtk_phy_update_bits(u3_banks->phya + U3P_U3_PHYA_DA_REG0, - P3A_RG_XTAL_EXT_EN_U3, P3A_RG_XTAL_EXT_EN_U3_VAL(2)); + mtk_phy_update_field(phya + U3P_U3_PHYA_DA_REG0, P3A_RG_XTAL_EXT_EN_U3, 2); - mtk_phy_update_bits(u3_banks->phya + U3P_U3_PHYA_REG9, - P3A_RG_RX_DAC_MUX, P3A_RG_RX_DAC_MUX_VAL(4)); + mtk_phy_update_field(phya + U3P_U3_PHYA_REG9, P3A_RG_RX_DAC_MUX, 4); - mtk_phy_update_bits(u3_banks->phya + U3P_U3_PHYA_REG6, - P3A_RG_TX_EIDLE_CM, P3A_RG_TX_EIDLE_CM_VAL(0xe)); + mtk_phy_update_field(phya + U3P_U3_PHYA_REG6, P3A_RG_TX_EIDLE_CM, 0xe); mtk_phy_update_bits(u3_banks->phyd + U3P_U3_PHYD_CDR1, P3D_RG_CDR_BIR_LTD0 | P3D_RG_CDR_BIR_LTD1, - P3D_RG_CDR_BIR_LTD0_VAL(0xc) | P3D_RG_CDR_BIR_LTD1_VAL(0x3)); + FIELD_PREP(P3D_RG_CDR_BIR_LTD0, 0xc) | + FIELD_PREP(P3D_RG_CDR_BIR_LTD1, 0x3)); - mtk_phy_update_bits(u3_banks->phyd + U3P_U3_PHYD_LFPS1, - P3D_RG_FWAKE_TH, P3D_RG_FWAKE_TH_VAL(0x34)); + mtk_phy_update_field(phyd + U3P_U3_PHYD_LFPS1, P3D_RG_FWAKE_TH, 0x34); - mtk_phy_update_bits(u3_banks->phyd + U3P_U3_PHYD_RXDET1, - P3D_RG_RXDET_STB2_SET, P3D_RG_RXDET_STB2_SET_VAL(0x10)); + mtk_phy_update_field(phyd + U3P_U3_PHYD_RXDET1, P3D_RG_RXDET_STB2_SET, 0x10); - mtk_phy_update_bits(u3_banks->phyd + U3P_U3_PHYD_RXDET2, - P3D_RG_RXDET_STB2_SET_P3, P3D_RG_RXDET_STB2_SET_P3_VAL(0x10)); + mtk_phy_update_field(phyd + U3P_U3_PHYD_RXDET2, P3D_RG_RXDET_STB2_SET_P3, 0x10); dev_dbg(tphy->dev, "%s(%d)\n", __func__, instance->index); } @@ -497,11 +808,9 @@ static void u2_phy_pll_26m_set(struct mtk_tphy *tphy, if (!tphy->pdata->sw_pll_48m_to_26m) return; - mtk_phy_update_bits(com + U3P_USBPHYACR0, PA0_USB20_PLL_PREDIV, - PA0_USB20_PLL_PREDIV_VAL(0)); + mtk_phy_update_field(com + U3P_USBPHYACR0, PA0_USB20_PLL_PREDIV, 0); - mtk_phy_update_bits(com + U3P_USBPHYACR2, PA2_RG_U2PLL_BW, - PA2_RG_U2PLL_BW_VAL(3)); + mtk_phy_update_field(com + U3P_USBPHYACR2, PA2_RG_U2PLL_BW, 3); writel(P2R_RG_U2PLL_FBDIV_26M, com + U3P_U2PHYA_RESV); @@ -519,8 +828,8 @@ static void u2_phy_instance_init(struct mtk_tphy *tphy, /* switch to USB function, and enable usb pll */ mtk_phy_clear_bits(com + U3P_U2PHYDTM0, P2C_FORCE_UART_EN | P2C_FORCE_SUSPENDM); - mtk_phy_update_bits(com + U3P_U2PHYDTM0, P2C_RG_XCVRSEL | P2C_RG_DATAIN, - P2C_RG_XCVRSEL_VAL(1) | P2C_RG_DATAIN_VAL(0)); + mtk_phy_clear_bits(com + U3P_U2PHYDTM0, + P2C_RG_XCVRSEL | P2C_RG_DATAIN | P2C_DTM0_PART_MASK); mtk_phy_clear_bits(com + U3P_U2PHYDTM1, P2C_RG_UART_EN); @@ -529,8 +838,7 @@ static void u2_phy_instance_init(struct mtk_tphy *tphy, /* disable switch 100uA current to SSUSB */ mtk_phy_clear_bits(com + U3P_USBPHYACR5, PA5_RG_U2_HS_100U_U3_EN); - if (!index) - mtk_phy_clear_bits(com + U3P_U2PHYACR4, P2C_U2_GPIO_CTR_MSK); + mtk_phy_clear_bits(com + U3P_U2PHYACR4, P2C_U2_GPIO_CTR_MSK); if (tphy->pdata->avoid_rx_sen_degradation) { if (!index) { @@ -548,7 +856,7 @@ static void u2_phy_instance_init(struct mtk_tphy *tphy, /* DP/DM BC1.1 path Disable */ mtk_phy_clear_bits(com + U3P_USBPHYACR6, PA6_RG_U2_BC11_SW_EN); - mtk_phy_update_bits(com + U3P_USBPHYACR6, PA6_RG_U2_SQTH, PA6_RG_U2_SQTH_VAL(2)); + mtk_phy_update_field(com + U3P_USBPHYACR6, PA6_RG_U2_SQTH, 2); /* Workaround only for mt8195, HW fix it for others (V3) */ u2_phy_pll_26m_set(tphy, instance); @@ -563,9 +871,6 @@ static void u2_phy_instance_power_on(struct mtk_tphy *tphy, void __iomem *com = u2_banks->com; u32 index = instance->index; - mtk_phy_clear_bits(com + U3P_U2PHYDTM0, - P2C_RG_XCVRSEL | P2C_RG_DATAIN | P2C_DTM0_PART_MASK); - /* OTG Enable */ mtk_phy_set_bits(com + U3P_USBPHYACR6, PA6_RG_U2_OTG_VBUSCMP_EN); @@ -588,8 +893,6 @@ static void u2_phy_instance_power_off(struct mtk_tphy *tphy, void __iomem *com = u2_banks->com; u32 index = instance->index; - mtk_phy_clear_bits(com + U3P_U2PHYDTM0, P2C_RG_XCVRSEL | P2C_RG_DATAIN); - /* OTG Disable */ mtk_phy_clear_bits(com + U3P_USBPHYACR6, PA6_RG_U2_OTG_VBUSCMP_EN); @@ -656,43 +959,39 @@ static void pcie_phy_instance_init(struct mtk_tphy *tphy, mtk_phy_update_bits(phya + U3P_U3_PHYA_DA_REG0, P3A_RG_XTAL_EXT_PE1H | P3A_RG_XTAL_EXT_PE2H, - P3A_RG_XTAL_EXT_PE1H_VAL(0x2) | P3A_RG_XTAL_EXT_PE2H_VAL(0x2)); + FIELD_PREP(P3A_RG_XTAL_EXT_PE1H, 0x2) | + FIELD_PREP(P3A_RG_XTAL_EXT_PE2H, 0x2)); /* ref clk drive */ - mtk_phy_update_bits(phya + U3P_U3_PHYA_REG1, P3A_RG_CLKDRV_AMP, - P3A_RG_CLKDRV_AMP_VAL(0x4)); + mtk_phy_update_field(phya + U3P_U3_PHYA_REG1, P3A_RG_CLKDRV_AMP, 0x4); - mtk_phy_update_bits(phya + U3P_U3_PHYA_REG0, P3A_RG_CLKDRV_OFF, - P3A_RG_CLKDRV_OFF_VAL(0x1)); + mtk_phy_update_field(phya + U3P_U3_PHYA_REG0, P3A_RG_CLKDRV_OFF, 0x1); /* SSC delta -5000ppm */ - mtk_phy_update_bits(phya + U3P_U3_PHYA_DA_REG20, P3A_RG_PLL_DELTA1_PE2H, - P3A_RG_PLL_DELTA1_PE2H_VAL(0x3c)); + mtk_phy_update_field(phya + U3P_U3_PHYA_DA_REG20, P3A_RG_PLL_DELTA1_PE2H, 0x3c); - mtk_phy_update_bits(phya + U3P_U3_PHYA_DA_REG25, P3A_RG_PLL_DELTA_PE2H, - P3A_RG_PLL_DELTA_PE2H_VAL(0x36)); + mtk_phy_update_field(phya + U3P_U3_PHYA_DA_REG25, P3A_RG_PLL_DELTA_PE2H, 0x36); /* change pll BW 0.6M */ mtk_phy_update_bits(phya + U3P_U3_PHYA_DA_REG5, P3A_RG_PLL_BR_PE2H | P3A_RG_PLL_IC_PE2H, - P3A_RG_PLL_BR_PE2H_VAL(0x1) | P3A_RG_PLL_IC_PE2H_VAL(0x1)); + FIELD_PREP(P3A_RG_PLL_BR_PE2H, 0x1) | + FIELD_PREP(P3A_RG_PLL_IC_PE2H, 0x1)); mtk_phy_update_bits(phya + U3P_U3_PHYA_DA_REG4, P3A_RG_PLL_DIVEN_PE2H | P3A_RG_PLL_BC_PE2H, - P3A_RG_PLL_BC_PE2H_VAL(0x3)); + FIELD_PREP(P3A_RG_PLL_BC_PE2H, 0x3)); - mtk_phy_update_bits(phya + U3P_U3_PHYA_DA_REG6, P3A_RG_PLL_IR_PE2H, - P3A_RG_PLL_IR_PE2H_VAL(0x2)); + mtk_phy_update_field(phya + U3P_U3_PHYA_DA_REG6, P3A_RG_PLL_IR_PE2H, 0x2); - mtk_phy_update_bits(phya + U3P_U3_PHYA_DA_REG7, P3A_RG_PLL_BP_PE2H, - P3A_RG_PLL_BP_PE2H_VAL(0xa)); + mtk_phy_update_field(phya + U3P_U3_PHYA_DA_REG7, P3A_RG_PLL_BP_PE2H, 0xa); /* Tx Detect Rx Timing: 10us -> 5us */ - mtk_phy_update_bits(u3_banks->phyd + U3P_U3_PHYD_RXDET1, - P3D_RG_RXDET_STB2_SET, P3D_RG_RXDET_STB2_SET_VAL(0x10)); + mtk_phy_update_field(u3_banks->phyd + U3P_U3_PHYD_RXDET1, + P3D_RG_RXDET_STB2_SET, 0x10); - mtk_phy_update_bits(u3_banks->phyd + U3P_U3_PHYD_RXDET2, - P3D_RG_RXDET_STB2_SET_P3, P3D_RG_RXDET_STB2_SET_P3_VAL(0x10)); + mtk_phy_update_field(u3_banks->phyd + U3P_U3_PHYD_RXDET2, + P3D_RG_RXDET_STB2_SET_P3, 0x10); /* wait for PCIe subsys register to active */ usleep_range(2500, 3000); @@ -733,38 +1032,38 @@ static void sata_phy_instance_init(struct mtk_tphy *tphy, /* charge current adjustment */ mtk_phy_update_bits(phyd + ANA_RG_CTRL_SIGNAL6, RG_CDR_BIRLTR_GEN1_MSK | RG_CDR_BC_GEN1_MSK, - RG_CDR_BIRLTR_GEN1_VAL(0x6) | RG_CDR_BC_GEN1_VAL(0x1a)); + FIELD_PREP(RG_CDR_BIRLTR_GEN1_MSK, 0x6) | + FIELD_PREP(RG_CDR_BC_GEN1_MSK, 0x1a)); - mtk_phy_update_bits(phyd + ANA_EQ_EYE_CTRL_SIGNAL4, RG_CDR_BIRLTD0_GEN1_MSK, - RG_CDR_BIRLTD0_GEN1_VAL(0x18)); + mtk_phy_update_field(phyd + ANA_EQ_EYE_CTRL_SIGNAL4, RG_CDR_BIRLTD0_GEN1_MSK, 0x18); - mtk_phy_update_bits(phyd + ANA_EQ_EYE_CTRL_SIGNAL5, RG_CDR_BIRLTD0_GEN3_MSK, - RG_CDR_BIRLTD0_GEN3_VAL(0x06)); + mtk_phy_update_field(phyd + ANA_EQ_EYE_CTRL_SIGNAL5, RG_CDR_BIRLTD0_GEN3_MSK, 0x06); mtk_phy_update_bits(phyd + ANA_RG_CTRL_SIGNAL4, RG_CDR_BICLTR_GEN1_MSK | RG_CDR_BR_GEN2_MSK, - RG_CDR_BICLTR_GEN1_VAL(0x0c) | RG_CDR_BR_GEN2_VAL(0x07)); + FIELD_PREP(RG_CDR_BICLTR_GEN1_MSK, 0x0c) | + FIELD_PREP(RG_CDR_BR_GEN2_MSK, 0x07)); mtk_phy_update_bits(phyd + PHYD_CTRL_SIGNAL_MODE4, RG_CDR_BICLTD0_GEN1_MSK | RG_CDR_BICLTD1_GEN1_MSK, - RG_CDR_BICLTD0_GEN1_VAL(0x08) | RG_CDR_BICLTD1_GEN1_VAL(0x02)); + FIELD_PREP(RG_CDR_BICLTD0_GEN1_MSK, 0x08) | + FIELD_PREP(RG_CDR_BICLTD1_GEN1_MSK, 0x02)); - mtk_phy_update_bits(phyd + PHYD_DESIGN_OPTION2, RG_LOCK_CNT_SEL_MSK, - RG_LOCK_CNT_SEL_VAL(0x02)); + mtk_phy_update_field(phyd + PHYD_DESIGN_OPTION2, RG_LOCK_CNT_SEL_MSK, 0x02); mtk_phy_update_bits(phyd + PHYD_DESIGN_OPTION9, RG_T2_MIN_MSK | RG_TG_MIN_MSK, - RG_T2_MIN_VAL(0x12) | RG_TG_MIN_VAL(0x04)); + FIELD_PREP(RG_T2_MIN_MSK, 0x12) | + FIELD_PREP(RG_TG_MIN_MSK, 0x04)); mtk_phy_update_bits(phyd + PHYD_DESIGN_OPTION9, RG_T2_MAX_MSK | RG_TG_MAX_MSK, - RG_T2_MAX_VAL(0x31) | RG_TG_MAX_VAL(0x0e)); + FIELD_PREP(RG_T2_MAX_MSK, 0x31) | + FIELD_PREP(RG_TG_MAX_MSK, 0x0e)); - mtk_phy_update_bits(phyd + ANA_RG_CTRL_SIGNAL1, RG_IDRV_0DB_GEN1_MSK, - RG_IDRV_0DB_GEN1_VAL(0x20)); + mtk_phy_update_field(phyd + ANA_RG_CTRL_SIGNAL1, RG_IDRV_0DB_GEN1_MSK, 0x20); - mtk_phy_update_bits(phyd + ANA_EQ_EYE_CTRL_SIGNAL1, RG_EQ_DLEQ_LFI_GEN1_MSK, - RG_EQ_DLEQ_LFI_GEN1_VAL(0x03)); + mtk_phy_update_field(phyd + ANA_EQ_EYE_CTRL_SIGNAL1, RG_EQ_DLEQ_LFI_GEN1_MSK, 0x03); dev_dbg(tphy->dev, "%s(%d)\n", __func__, instance->index); } @@ -827,6 +1126,9 @@ static void phy_parse_property(struct mtk_tphy *tphy, { struct device *dev = &instance->phy->dev; + if (instance->type == PHY_TYPE_USB3) + instance->type_force_mode = device_property_read_bool(dev, "mediatek,force-mode"); + if (instance->type != PHY_TYPE_USB2) return; @@ -841,10 +1143,13 @@ static void phy_parse_property(struct mtk_tphy *tphy, &instance->intr); device_property_read_u32(dev, "mediatek,discth", &instance->discth); + device_property_read_u32(dev, "mediatek,pre-emphasis", + &instance->pre_emphasis); dev_dbg(dev, "bc12:%d, src:%d, vrt:%d, term:%d, intr:%d, disc:%d\n", instance->bc12_en, instance->eye_src, instance->eye_vrt, instance->eye_term, instance->intr, instance->discth); + dev_dbg(dev, "pre-emp:%d\n", instance->pre_emphasis); } static void u2_phy_props_set(struct mtk_tphy *tphy, @@ -857,24 +1162,33 @@ static void u2_phy_props_set(struct mtk_tphy *tphy, mtk_phy_set_bits(com + U3P_U2PHYBC12C, P2C_RG_CHGDT_EN); if (tphy->pdata->version < MTK_PHY_V3 && instance->eye_src) - mtk_phy_update_bits(com + U3P_USBPHYACR5, PA5_RG_U2_HSTX_SRCTRL, - PA5_RG_U2_HSTX_SRCTRL_VAL(instance->eye_src)); + mtk_phy_update_field(com + U3P_USBPHYACR5, PA5_RG_U2_HSTX_SRCTRL, + instance->eye_src); if (instance->eye_vrt) - mtk_phy_update_bits(com + U3P_USBPHYACR1, PA1_RG_VRT_SEL, - PA1_RG_VRT_SEL_VAL(instance->eye_vrt)); + mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_VRT_SEL, + instance->eye_vrt); if (instance->eye_term) - mtk_phy_update_bits(com + U3P_USBPHYACR1, PA1_RG_TERM_SEL, - PA1_RG_TERM_SEL_VAL(instance->eye_term)); + mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_TERM_SEL, + instance->eye_term); + + if (instance->intr) { + if (u2_banks->misc) + mtk_phy_set_bits(u2_banks->misc + U3P_MISC_REG1, + MR1_EFUSE_AUTO_LOAD_DIS); - if (instance->intr) - mtk_phy_update_bits(com + U3P_USBPHYACR1, PA1_RG_INTR_CAL, - PA1_RG_INTR_CAL_VAL(instance->intr)); + mtk_phy_update_field(com + U3P_USBPHYACR1, PA1_RG_INTR_CAL, + instance->intr); + } if (instance->discth) - mtk_phy_update_bits(com + U3P_USBPHYACR6, PA6_RG_U2_DISCTH, - PA6_RG_U2_DISCTH_VAL(instance->discth)); + mtk_phy_update_field(com + U3P_USBPHYACR6, PA6_RG_U2_DISCTH, + instance->discth); + + if (instance->pre_emphasis) + mtk_phy_update_field(com + U3P_USBPHYACR6, PA6_RG_U2_PRE_EMP, + instance->pre_emphasis); } /* type switch for usb3/pcie/sgmii/sata */ @@ -885,7 +1199,7 @@ static int phy_type_syscon_get(struct mtk_phy_instance *instance, int ret; /* type switch function is optional */ - if (!of_property_read_bool(dn, "mediatek,syscon-type")) + if (!of_property_present(dn, "mediatek,syscon-type")) return 0; ret = of_parse_phandle_with_fixed_args(dn, "mediatek,syscon-type", @@ -906,7 +1220,7 @@ static int phy_type_syscon_get(struct mtk_phy_instance *instance, static int phy_type_set(struct mtk_phy_instance *instance) { int type; - u32 mask; + u32 offset; if (!instance->type_sw) return 0; @@ -929,8 +1243,9 @@ static int phy_type_set(struct mtk_phy_instance *instance) return 0; } - mask = RG_PHY_SW_TYPE << (instance->type_sw_index * BITS_PER_BYTE); - regmap_update_bits(instance->type_sw, instance->type_sw_reg, mask, type); + offset = instance->type_sw_index * BITS_PER_BYTE; + regmap_update_bits(instance->type_sw, instance->type_sw_reg, + RG_PHY_SW_TYPE << offset, type << offset); return 0; } @@ -947,7 +1262,7 @@ static int phy_efuse_get(struct mtk_tphy *tphy, struct mtk_phy_instance *instanc } /* software efuse is optional */ - instance->efuse_sw_en = device_property_read_bool(dev, "nvmem-cells"); + instance->efuse_sw_en = device_property_present(dev, "nvmem-cells"); if (!instance->efuse_sw_en) return 0; @@ -992,7 +1307,7 @@ static int phy_efuse_get(struct mtk_tphy *tphy, struct mtk_phy_instance *instanc /* no efuse, ignore it */ if (!instance->efuse_intr && !instance->efuse_rx_imp && - !instance->efuse_rx_imp) { + !instance->efuse_tx_imp) { dev_warn(dev, "no u3 intr efuse, but dts enable it\n"); instance->efuse_sw_en = 0; break; @@ -1022,23 +1337,23 @@ static void phy_efuse_set(struct mtk_phy_instance *instance) case PHY_TYPE_USB2: mtk_phy_set_bits(u2_banks->misc + U3P_MISC_REG1, MR1_EFUSE_AUTO_LOAD_DIS); - mtk_phy_update_bits(u2_banks->com + U3P_USBPHYACR1, PA1_RG_INTR_CAL, - PA1_RG_INTR_CAL_VAL(instance->efuse_intr)); + mtk_phy_update_field(u2_banks->com + U3P_USBPHYACR1, PA1_RG_INTR_CAL, + instance->efuse_intr); break; case PHY_TYPE_USB3: case PHY_TYPE_PCIE: mtk_phy_set_bits(u3_banks->phyd + U3P_U3_PHYD_RSV, P3D_RG_EFUSE_AUTO_LOAD_DIS); - mtk_phy_update_bits(u3_banks->phyd + U3P_U3_PHYD_IMPCAL0, P3D_RG_TX_IMPEL, - P3D_RG_TX_IMPEL_VAL(instance->efuse_tx_imp)); + mtk_phy_update_field(u3_banks->phyd + U3P_U3_PHYD_IMPCAL0, P3D_RG_TX_IMPEL, + instance->efuse_tx_imp); mtk_phy_set_bits(u3_banks->phyd + U3P_U3_PHYD_IMPCAL0, P3D_RG_FORCE_TX_IMPEL); - mtk_phy_update_bits(u3_banks->phyd + U3P_U3_PHYD_IMPCAL1, P3D_RG_RX_IMPEL, - P3D_RG_RX_IMPEL_VAL(instance->efuse_rx_imp)); + mtk_phy_update_field(u3_banks->phyd + U3P_U3_PHYD_IMPCAL1, P3D_RG_RX_IMPEL, + instance->efuse_rx_imp); mtk_phy_set_bits(u3_banks->phyd + U3P_U3_PHYD_IMPCAL1, P3D_RG_FORCE_RX_IMPEL); - mtk_phy_update_bits(u3_banks->phya + U3P_U3_PHYA_REG0, P3A_RG_IEXT_INTR, - P3A_RG_IEXT_INTR_VAL(instance->efuse_intr)); + mtk_phy_update_field(u3_banks->phya + U3P_U3_PHYA_REG0, P3A_RG_IEXT_INTR, + instance->efuse_intr); break; default: dev_warn(dev, "no sw efuse for type %d\n", instance->type); @@ -1136,7 +1451,7 @@ static int mtk_phy_set_mode(struct phy *phy, enum phy_mode mode, int submode) } static struct phy *mtk_phy_xlate(struct device *dev, - struct of_phandle_args *args) + const struct of_phandle_args *args) { struct mtk_tphy *tphy = dev_get_drvdata(dev); struct mtk_phy_instance *instance = NULL; @@ -1189,6 +1504,7 @@ static struct phy *mtk_phy_xlate(struct device *dev, phy_parse_property(tphy, instance); phy_type_set(instance); + phy_debugfs_init(instance); return instance->phy; } @@ -1204,12 +1520,16 @@ static const struct phy_ops mtk_tphy_ops = { static const struct mtk_phy_pdata tphy_v1_pdata = { .avoid_rx_sen_degradation = false, + .slew_ref_clock_mhz = 26, + .slew_rate_coefficient = 28, .version = MTK_PHY_V1, }; static const struct mtk_phy_pdata tphy_v2_pdata = { .avoid_rx_sen_degradation = false, .sw_efuse_supported = true, + .slew_ref_clock_mhz = 26, + .slew_rate_coefficient = 28, .version = MTK_PHY_V2, }; @@ -1220,6 +1540,8 @@ static const struct mtk_phy_pdata tphy_v3_pdata = { static const struct mtk_phy_pdata mt8173_pdata = { .avoid_rx_sen_degradation = true, + .slew_ref_clock_mhz = 26, + .slew_rate_coefficient = 28, .version = MTK_PHY_V1, }; @@ -1245,12 +1567,11 @@ 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; + int port, ret; tphy = devm_kzalloc(dev, sizeof(*tphy), GFP_KERNEL); if (!tphy) @@ -1280,36 +1601,33 @@ static int mtk_tphy_probe(struct platform_device *pdev) } } - if (tphy->pdata->version < MTK_PHY_V3) { - 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); - } + /* Optional properties for slew calibration variation */ + ret = device_property_read_u32(dev, "mediatek,src-ref-clk-mhz", &tphy->src_ref_clk); + if (ret) + tphy->src_ref_clk = tphy->pdata->slew_ref_clock_mhz; + + ret = device_property_read_u32(dev, "mediatek,src-coef", &tphy->src_coef); + if (ret) + tphy->src_coef = tphy->pdata->slew_rate_coefficient; port = 0; - for_each_child_of_node(np, child_np) { + for_each_child_of_node_scoped(np, child_np) { struct mtk_phy_instance *instance; struct clk_bulk_data *clks; struct device *subdev; struct phy *phy; + int retval; instance = devm_kzalloc(dev, sizeof(*instance), GFP_KERNEL); - if (!instance) { - retval = -ENOMEM; - goto put_child; - } + if (!instance) + return -ENOMEM; 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; + return PTR_ERR(phy); } subdev = &phy->dev; @@ -1317,14 +1635,12 @@ static int mtk_tphy_probe(struct platform_device *pdev) if (retval) { dev_err(subdev, "failed to get address resource(id-%d)\n", port); - goto put_child; + return retval; } instance->port_base = devm_ioremap_resource(subdev, &res); - if (IS_ERR(instance->port_base)) { - retval = PTR_ERR(instance->port_base); - goto put_child; - } + if (IS_ERR(instance->port_base)) + return PTR_ERR(instance->port_base); instance->phy = phy; instance->index = port; @@ -1336,19 +1652,16 @@ static int mtk_tphy_probe(struct platform_device *pdev) clks[1].id = "da_ref"; /* analog clock */ retval = devm_clk_bulk_get_optional(subdev, TPHY_CLKS_CNT, clks); if (retval) - goto put_child; + return retval; retval = phy_type_syscon_get(instance, child_np); if (retval) - goto put_child; + return retval; } 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 = { |