| /* | |
| * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. | |
| * Copyright (C) 2015 Google, Inc. | |
| * | |
| * This program is free software; you can redistribute it and/or modify it | |
| * under the terms and conditions of the GNU General Public License, | |
| * version 2, as published by the Free Software Foundation. | |
| * | |
| * This program is distributed in the hope it will be useful, but WITHOUT | |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| * more details. | |
| */ | |
| #include <linux/clk.h> | |
| #include <linux/clk/tegra.h> | |
| #include <linux/delay.h> | |
| #include <linux/io.h> | |
| #include <linux/mailbox_client.h> | |
| #include <linux/module.h> | |
| #include <linux/of.h> | |
| #include <linux/phy/phy.h> | |
| #include <linux/platform_device.h> | |
| #include <linux/regulator/consumer.h> | |
| #include <linux/reset.h> | |
| #include <linux/slab.h> | |
| #include <soc/tegra/fuse.h> | |
| #include "xusb.h" | |
| #define FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(x) \ | |
| ((x) ? (11 + ((x) - 1) * 6) : 0) | |
| #define FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK 0x3f | |
| #define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT 7 | |
| #define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK 0xf | |
| #define FUSE_USB_CALIB_EXT_RPD_CTRL_SHIFT 0 | |
| #define FUSE_USB_CALIB_EXT_RPD_CTRL_MASK 0x1f | |
| #define XUSB_PADCTL_USB2_PAD_MUX 0x004 | |
| #define XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_SHIFT 16 | |
| #define XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_MASK 0x3 | |
| #define XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_XUSB 0x1 | |
| #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_SHIFT 18 | |
| #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_MASK 0x3 | |
| #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_XUSB 0x1 | |
| #define XUSB_PADCTL_USB2_PORT_CAP 0x008 | |
| #define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(x) (0x1 << ((x) * 4)) | |
| #define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_MASK(x) (0x3 << ((x) * 4)) | |
| #define XUSB_PADCTL_SS_PORT_MAP 0x014 | |
| #define XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(x) (1 << (((x) * 5) + 4)) | |
| #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_SHIFT(x) ((x) * 5) | |
| #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(x) (0x7 << ((x) * 5)) | |
| #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(x, v) (((v) & 0x7) << ((x) * 5)) | |
| #define XUSB_PADCTL_ELPG_PROGRAM1 0x024 | |
| #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN (1 << 31) | |
| #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 30) | |
| #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN (1 << 29) | |
| #define XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN(x) (1 << (2 + (x) * 3)) | |
| #define XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(x) \ | |
| (1 << (1 + (x) * 3)) | |
| #define XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN(x) (1 << ((x) * 3)) | |
| #define XUSB_PADCTL_USB3_PAD_MUX 0x028 | |
| #define XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(x) (1 << (1 + (x))) | |
| #define XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(x) (1 << (8 + (x))) | |
| #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(x) (0x084 + (x) * 0x40) | |
| #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT 7 | |
| #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_MASK 0x3 | |
| #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18 (1 << 6) | |
| #define XUSB_PADCTL_USB2_OTG_PADX_CTL0(x) (0x088 + (x) * 0x40) | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI (1 << 29) | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 (1 << 27) | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD (1 << 26) | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT 0 | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK 0x3f | |
| #define XUSB_PADCTL_USB2_OTG_PADX_CTL1(x) (0x08c + (x) * 0x40) | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_SHIFT 26 | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_MASK 0x1f | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT 3 | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK 0xf | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR (1 << 2) | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_OVRD (1 << 1) | |
| #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_OVRD (1 << 0) | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0 0x284 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD (1 << 11) | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT 3 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK 0x7 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL 0x7 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT 0 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK 0x7 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_VAL 0x2 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1 0x288 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_PD_TRK (1 << 26) | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_SHIFT 19 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_MASK 0x7f | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_VAL 0x0a | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_SHIFT 12 | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_MASK 0x7f | |
| #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_VAL 0x1e | |
| #define XUSB_PADCTL_HSIC_PADX_CTL0(x) (0x300 + (x) * 0x20) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE (1 << 18) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA1 (1 << 17) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA0 (1 << 16) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPD_STROBE (1 << 15) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 (1 << 14) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 (1 << 13) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_STROBE (1 << 9) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA1 (1 << 8) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA0 (1 << 7) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_STROBE (1 << 6) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA1 (1 << 5) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA0 (1 << 4) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_STROBE (1 << 3) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA1 (1 << 2) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA0 (1 << 1) | |
| #define XUSB_PADCTL_HSIC_PADX_CTL1(x) (0x304 + (x) * 0x20) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_SHIFT 0 | |
| #define XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_MASK 0xf | |
| #define XUSB_PADCTL_HSIC_PADX_CTL2(x) (0x308 + (x) * 0x20) | |
| #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT 8 | |
| #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK 0xf | |
| #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT 0 | |
| #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK 0xff | |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL 0x340 | |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_PD_TRK (1 << 19) | |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_SHIFT 12 | |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_MASK 0x7f | |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_VAL 0x0a | |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_SHIFT 5 | |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_MASK 0x7f | |
| #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_VAL 0x1e | |
| #define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL 0x344 | |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL1 0x360 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT 20 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_MASK 0xff | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_USB_VAL 0x19 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SATA_VAL 0x1e | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_SHIFT 16 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_MASK 0x3 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_LOCKDET_STATUS (1 << 15) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD (1 << 4) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_ENABLE (1 << 3) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_SHIFT 1 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_MASK 0x3 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL1_IDDQ (1 << 0) | |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL2 0x364 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT 4 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_MASK 0xffffff | |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_VAL 0x136 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD (1 << 2) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE (1 << 1) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN (1 << 0) | |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL4 0x36c | |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_EN (1 << 15) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT 12 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_MASK 0x3 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_USB_VAL 0x2 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SATA_VAL 0x0 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_REFCLKBUF_EN (1 << 8) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_SHIFT 4 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_MASK 0xf | |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL5 0x370 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT 16 | |
| #define XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_MASK 0xff | |
| #define XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_VAL 0x2a | |
| #define XUSB_PADCTL_UPHY_PLL_P0_CTL8 0x37c | |
| #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE (1 << 31) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD (1 << 15) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN (1 << 13) | |
| #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN (1 << 12) | |
| #define XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL1(x) (0x460 + (x) * 0x40) | |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_SHIFT 20 | |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_MASK 0x3 | |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_VAL 0x1 | |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_TERM_EN BIT(18) | |
| #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_MODE_OVRD BIT(13) | |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL1 0x860 | |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL2 0x864 | |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL4 0x86c | |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL5 0x870 | |
| #define XUSB_PADCTL_UPHY_PLL_S0_CTL8 0x87c | |
| #define XUSB_PADCTL_UPHY_MISC_PAD_S0_CTL1 0x960 | |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL1(x) (0xa60 + (x) * 0x40) | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_SHIFT 16 | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_MASK 0x3 | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_VAL 0x2 | |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL2(x) (0xa64 + (x) * 0x40) | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_SHIFT 0 | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_MASK 0xffff | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_VAL 0x00fc | |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL3(x) (0xa68 + (x) * 0x40) | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL3_RX_DFE_VAL 0xc0077f1f | |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL4(x) (0xa6c + (x) * 0x40) | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_SHIFT 16 | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_MASK 0xffff | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_VAL 0x01c7 | |
| #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL6(x) (0xa74 + (x) * 0x40) | |
| #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL6_RX_EQ_CTRL_H_VAL 0xfcf01368 | |
| struct tegra210_xusb_fuse_calibration { | |
| u32 hs_curr_level[4]; | |
| u32 hs_term_range_adj; | |
| u32 rpd_ctrl; | |
| }; | |
| struct tegra210_xusb_padctl { | |
| struct tegra_xusb_padctl base; | |
| struct tegra210_xusb_fuse_calibration fuse; | |
| }; | |
| static inline struct tegra210_xusb_padctl * | |
| to_tegra210_xusb_padctl(struct tegra_xusb_padctl *padctl) | |
| { | |
| return container_of(padctl, struct tegra210_xusb_padctl, base); | |
| } | |
| /* must be called under padctl->lock */ | |
| static int tegra210_pex_uphy_enable(struct tegra_xusb_padctl *padctl) | |
| { | |
| struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(padctl->pcie); | |
| unsigned long timeout; | |
| u32 value; | |
| int err; | |
| if (pcie->enable > 0) { | |
| pcie->enable++; | |
| return 0; | |
| } | |
| err = clk_prepare_enable(pcie->pll); | |
| if (err < 0) | |
| return err; | |
| err = reset_control_deassert(pcie->rst); | |
| if (err < 0) | |
| goto disable; | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL5); | |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL5); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL4); | |
| value &= ~((XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT) | | |
| (XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_SHIFT)); | |
| value |= (XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_USB_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT) | | |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL4); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value &= ~((XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_SHIFT) | | |
| (XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT)); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_USB_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_IDDQ; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_SHIFT); | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| usleep_range(10, 20); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL4); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL4_REFCLKBUF_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL4); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| if (!(value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE)) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_ENABLE; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL1_LOCKDET_STATUS) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN | | |
| XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| if (!(value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE)) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| tegra210_xusb_pll_hw_control_enable(); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); | |
| usleep_range(10, 20); | |
| tegra210_xusb_pll_hw_sequence_start(); | |
| pcie->enable++; | |
| return 0; | |
| reset: | |
| reset_control_assert(pcie->rst); | |
| disable: | |
| clk_disable_unprepare(pcie->pll); | |
| return err; | |
| } | |
| static void tegra210_pex_uphy_disable(struct tegra_xusb_padctl *padctl) | |
| { | |
| struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(padctl->pcie); | |
| mutex_lock(&padctl->lock); | |
| if (WARN_ON(pcie->enable == 0)) | |
| goto unlock; | |
| if (--pcie->enable > 0) | |
| goto unlock; | |
| reset_control_assert(pcie->rst); | |
| clk_disable_unprepare(pcie->pll); | |
| unlock: | |
| mutex_unlock(&padctl->lock); | |
| } | |
| /* must be called under padctl->lock */ | |
| static int tegra210_sata_uphy_enable(struct tegra_xusb_padctl *padctl, bool usb) | |
| { | |
| struct tegra_xusb_sata_pad *sata = to_sata_pad(padctl->sata); | |
| unsigned long timeout; | |
| u32 value; | |
| int err; | |
| if (sata->enable > 0) { | |
| sata->enable++; | |
| return 0; | |
| } | |
| err = clk_prepare_enable(sata->pll); | |
| if (err < 0) | |
| return err; | |
| err = reset_control_deassert(sata->rst); | |
| if (err < 0) | |
| goto disable; | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL5); | |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL5); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL4); | |
| value &= ~((XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT) | | |
| (XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_SHIFT)); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_EN; | |
| if (usb) | |
| value |= (XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_USB_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT); | |
| else | |
| value |= (XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SATA_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT); | |
| /* XXX PLL0_XDIGCLK_EN */ | |
| /* | |
| value &= ~(1 << 19); | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL4); | |
| */ | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value &= ~((XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_SHIFT) | | |
| (XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT)); | |
| if (usb) | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_USB_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT; | |
| else | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SATA_VAL << | |
| XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_IDDQ; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value &= ~(XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_MASK << | |
| XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_SHIFT); | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| usleep_range(10, 20); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL4); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL4_REFCLKBUF_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL4); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| if (!(value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE)) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL1_ENABLE; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL1_LOCKDET_STATUS) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN | | |
| XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| if (value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| timeout = jiffies + msecs_to_jiffies(100); | |
| while (time_before(jiffies, timeout)) { | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| if (!(value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE)) | |
| break; | |
| usleep_range(10, 20); | |
| } | |
| if (time_after_eq(jiffies, timeout)) { | |
| err = -ETIMEDOUT; | |
| goto reset; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| tegra210_sata_pll_hw_control_enable(); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); | |
| usleep_range(10, 20); | |
| tegra210_sata_pll_hw_sequence_start(); | |
| sata->enable++; | |
| return 0; | |
| reset: | |
| reset_control_assert(sata->rst); | |
| disable: | |
| clk_disable_unprepare(sata->pll); | |
| return err; | |
| } | |
| static void tegra210_sata_uphy_disable(struct tegra_xusb_padctl *padctl) | |
| { | |
| struct tegra_xusb_sata_pad *sata = to_sata_pad(padctl->sata); | |
| mutex_lock(&padctl->lock); | |
| if (WARN_ON(sata->enable == 0)) | |
| goto unlock; | |
| if (--sata->enable > 0) | |
| goto unlock; | |
| reset_control_assert(sata->rst); | |
| clk_disable_unprepare(sata->pll); | |
| unlock: | |
| mutex_unlock(&padctl->lock); | |
| } | |
| static int tegra210_xusb_padctl_enable(struct tegra_xusb_padctl *padctl) | |
| { | |
| u32 value; | |
| mutex_lock(&padctl->lock); | |
| if (padctl->enable++ > 0) | |
| goto out; | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value &= ~XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| usleep_range(100, 200); | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value &= ~XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY; | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| usleep_range(100, 200); | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value &= ~XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| out: | |
| mutex_unlock(&padctl->lock); | |
| return 0; | |
| } | |
| static int tegra210_xusb_padctl_disable(struct tegra_xusb_padctl *padctl) | |
| { | |
| u32 value; | |
| mutex_lock(&padctl->lock); | |
| if (WARN_ON(padctl->enable == 0)) | |
| goto out; | |
| if (--padctl->enable > 0) | |
| goto out; | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value |= XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| usleep_range(100, 200); | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value |= XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY; | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| usleep_range(100, 200); | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value |= XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN; | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| out: | |
| mutex_unlock(&padctl->lock); | |
| return 0; | |
| } | |
| static int tegra210_hsic_set_idle(struct tegra_xusb_padctl *padctl, | |
| unsigned int index, bool idle) | |
| { | |
| u32 value; | |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index)); | |
| value &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_STROBE); | |
| if (idle) | |
| value |= XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE; | |
| else | |
| value &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE); | |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL0(index)); | |
| return 0; | |
| } | |
| static int tegra210_usb3_set_lfps_detect(struct tegra_xusb_padctl *padctl, | |
| unsigned int index, bool enable) | |
| { | |
| struct tegra_xusb_port *port; | |
| struct tegra_xusb_lane *lane; | |
| u32 value, offset; | |
| port = tegra_xusb_find_port(padctl, "usb3", index); | |
| if (!port) | |
| return -ENODEV; | |
| lane = port->lane; | |
| if (lane->pad == padctl->pcie) | |
| offset = XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL1(lane->index); | |
| else | |
| offset = XUSB_PADCTL_UPHY_MISC_PAD_S0_CTL1; | |
| value = padctl_readl(padctl, offset); | |
| value &= ~((XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_MASK << | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_SHIFT) | | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_TERM_EN | | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_MODE_OVRD); | |
| if (!enable) { | |
| value |= (XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_VAL << | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_SHIFT) | | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_TERM_EN | | |
| XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_MODE_OVRD; | |
| } | |
| padctl_writel(padctl, value, offset); | |
| return 0; | |
| } | |
| #define TEGRA210_LANE(_name, _offset, _shift, _mask, _type) \ | |
| { \ | |
| .name = _name, \ | |
| .offset = _offset, \ | |
| .shift = _shift, \ | |
| .mask = _mask, \ | |
| .num_funcs = ARRAY_SIZE(tegra210_##_type##_functions), \ | |
| .funcs = tegra210_##_type##_functions, \ | |
| } | |
| static const char *tegra210_usb2_functions[] = { | |
| "snps", | |
| "xusb", | |
| "uart" | |
| }; | |
| static const struct tegra_xusb_lane_soc tegra210_usb2_lanes[] = { | |
| TEGRA210_LANE("usb2-0", 0x004, 0, 0x3, usb2), | |
| TEGRA210_LANE("usb2-1", 0x004, 2, 0x3, usb2), | |
| TEGRA210_LANE("usb2-2", 0x004, 4, 0x3, usb2), | |
| TEGRA210_LANE("usb2-3", 0x004, 6, 0x3, usb2), | |
| }; | |
| static struct tegra_xusb_lane * | |
| tegra210_usb2_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, | |
| unsigned int index) | |
| { | |
| struct tegra_xusb_usb2_lane *usb2; | |
| int err; | |
| usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL); | |
| if (!usb2) | |
| return ERR_PTR(-ENOMEM); | |
| INIT_LIST_HEAD(&usb2->base.list); | |
| usb2->base.soc = &pad->soc->lanes[index]; | |
| usb2->base.index = index; | |
| usb2->base.pad = pad; | |
| usb2->base.np = np; | |
| err = tegra_xusb_lane_parse_dt(&usb2->base, np); | |
| if (err < 0) { | |
| kfree(usb2); | |
| return ERR_PTR(err); | |
| } | |
| return &usb2->base; | |
| } | |
| static void tegra210_usb2_lane_remove(struct tegra_xusb_lane *lane) | |
| { | |
| struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane); | |
| kfree(usb2); | |
| } | |
| static const struct tegra_xusb_lane_ops tegra210_usb2_lane_ops = { | |
| .probe = tegra210_usb2_lane_probe, | |
| .remove = tegra210_usb2_lane_remove, | |
| }; | |
| static int tegra210_usb2_phy_init(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| u32 value; | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_PAD_MUX); | |
| value &= ~(XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_MASK << | |
| XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_SHIFT); | |
| value |= XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_XUSB << | |
| XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_PAD_MUX); | |
| return tegra210_xusb_padctl_enable(padctl); | |
| } | |
| static int tegra210_usb2_phy_exit(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| return tegra210_xusb_padctl_disable(lane->pad->padctl); | |
| } | |
| static int tegra210_usb2_phy_power_on(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane); | |
| struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| struct tegra210_xusb_padctl *priv; | |
| struct tegra_xusb_usb2_port *port; | |
| unsigned int index = lane->index; | |
| u32 value; | |
| int err; | |
| port = tegra_xusb_find_usb2_port(padctl, index); | |
| if (!port) { | |
| dev_err(&phy->dev, "no port found for USB2 lane %u\n", index); | |
| return -ENODEV; | |
| } | |
| priv = to_tegra210_xusb_padctl(padctl); | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); | |
| value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK << | |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) | | |
| (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK << | |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT)); | |
| value |= (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL << | |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT); | |
| if (tegra_sku_info.revision < TEGRA_REVISION_A02) | |
| value |= | |
| (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_VAL << | |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT); | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_PORT_CAP); | |
| value &= ~XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_MASK(index); | |
| value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_PORT_CAP); | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); | |
| value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK << | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT) | | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD | | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 | | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI); | |
| value |= (priv->fuse.hs_curr_level[index] + | |
| usb2->hs_curr_level_offset) << | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); | |
| value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK << | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) | | |
| (XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_MASK << | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_SHIFT) | | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR | | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_OVRD | | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_OVRD); | |
| value |= (priv->fuse.hs_term_range_adj << | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) | | |
| (priv->fuse.rpd_ctrl << | |
| XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_SHIFT); | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); | |
| value = padctl_readl(padctl, | |
| XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(index)); | |
| value &= ~(XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_MASK << | |
| XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT); | |
| value |= XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18; | |
| padctl_writel(padctl, value, | |
| XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(index)); | |
| err = regulator_enable(port->supply); | |
| if (err) | |
| return err; | |
| mutex_lock(&padctl->lock); | |
| if (pad->enable > 0) { | |
| pad->enable++; | |
| mutex_unlock(&padctl->lock); | |
| return 0; | |
| } | |
| err = clk_prepare_enable(pad->clk); | |
| if (err) | |
| goto disable_regulator; | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); | |
| value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_MASK << | |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_SHIFT) | | |
| (XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_MASK << | |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_SHIFT)); | |
| value |= (XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_VAL << | |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_SHIFT) | | |
| (XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_VAL << | |
| XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_SHIFT); | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); | |
| value &= ~XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); | |
| udelay(1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); | |
| value &= ~XUSB_PADCTL_USB2_BIAS_PAD_CTL1_PD_TRK; | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); | |
| udelay(50); | |
| clk_disable_unprepare(pad->clk); | |
| pad->enable++; | |
| mutex_unlock(&padctl->lock); | |
| return 0; | |
| disable_regulator: | |
| regulator_disable(port->supply); | |
| mutex_unlock(&padctl->lock); | |
| return err; | |
| } | |
| static int tegra210_usb2_phy_power_off(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| struct tegra_xusb_usb2_port *port; | |
| u32 value; | |
| port = tegra_xusb_find_usb2_port(padctl, lane->index); | |
| if (!port) { | |
| dev_err(&phy->dev, "no port found for USB2 lane %u\n", | |
| lane->index); | |
| return -ENODEV; | |
| } | |
| mutex_lock(&padctl->lock); | |
| if (WARN_ON(pad->enable == 0)) | |
| goto out; | |
| if (--pad->enable > 0) | |
| goto out; | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); | |
| value |= XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD; | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); | |
| out: | |
| regulator_disable(port->supply); | |
| mutex_unlock(&padctl->lock); | |
| return 0; | |
| } | |
| static const struct phy_ops tegra210_usb2_phy_ops = { | |
| .init = tegra210_usb2_phy_init, | |
| .exit = tegra210_usb2_phy_exit, | |
| .power_on = tegra210_usb2_phy_power_on, | |
| .power_off = tegra210_usb2_phy_power_off, | |
| .owner = THIS_MODULE, | |
| }; | |
| static struct tegra_xusb_pad * | |
| tegra210_usb2_pad_probe(struct tegra_xusb_padctl *padctl, | |
| const struct tegra_xusb_pad_soc *soc, | |
| struct device_node *np) | |
| { | |
| struct tegra_xusb_usb2_pad *usb2; | |
| struct tegra_xusb_pad *pad; | |
| int err; | |
| usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL); | |
| if (!usb2) | |
| return ERR_PTR(-ENOMEM); | |
| pad = &usb2->base; | |
| pad->ops = &tegra210_usb2_lane_ops; | |
| pad->soc = soc; | |
| err = tegra_xusb_pad_init(pad, padctl, np); | |
| if (err < 0) { | |
| kfree(usb2); | |
| goto out; | |
| } | |
| usb2->clk = devm_clk_get(&pad->dev, "trk"); | |
| if (IS_ERR(usb2->clk)) { | |
| err = PTR_ERR(usb2->clk); | |
| dev_err(&pad->dev, "failed to get trk clock: %d\n", err); | |
| goto unregister; | |
| } | |
| err = tegra_xusb_pad_register(pad, &tegra210_usb2_phy_ops); | |
| if (err < 0) | |
| goto unregister; | |
| dev_set_drvdata(&pad->dev, pad); | |
| return pad; | |
| unregister: | |
| device_unregister(&pad->dev); | |
| out: | |
| return ERR_PTR(err); | |
| } | |
| static void tegra210_usb2_pad_remove(struct tegra_xusb_pad *pad) | |
| { | |
| struct tegra_xusb_usb2_pad *usb2 = to_usb2_pad(pad); | |
| kfree(usb2); | |
| } | |
| static const struct tegra_xusb_pad_ops tegra210_usb2_ops = { | |
| .probe = tegra210_usb2_pad_probe, | |
| .remove = tegra210_usb2_pad_remove, | |
| }; | |
| static const struct tegra_xusb_pad_soc tegra210_usb2_pad = { | |
| .name = "usb2", | |
| .num_lanes = ARRAY_SIZE(tegra210_usb2_lanes), | |
| .lanes = tegra210_usb2_lanes, | |
| .ops = &tegra210_usb2_ops, | |
| }; | |
| static const char *tegra210_hsic_functions[] = { | |
| "snps", | |
| "xusb", | |
| }; | |
| static const struct tegra_xusb_lane_soc tegra210_hsic_lanes[] = { | |
| TEGRA210_LANE("hsic-0", 0x004, 14, 0x1, hsic), | |
| }; | |
| static struct tegra_xusb_lane * | |
| tegra210_hsic_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, | |
| unsigned int index) | |
| { | |
| struct tegra_xusb_hsic_lane *hsic; | |
| int err; | |
| hsic = kzalloc(sizeof(*hsic), GFP_KERNEL); | |
| if (!hsic) | |
| return ERR_PTR(-ENOMEM); | |
| INIT_LIST_HEAD(&hsic->base.list); | |
| hsic->base.soc = &pad->soc->lanes[index]; | |
| hsic->base.index = index; | |
| hsic->base.pad = pad; | |
| hsic->base.np = np; | |
| err = tegra_xusb_lane_parse_dt(&hsic->base, np); | |
| if (err < 0) { | |
| kfree(hsic); | |
| return ERR_PTR(err); | |
| } | |
| return &hsic->base; | |
| } | |
| static void tegra210_hsic_lane_remove(struct tegra_xusb_lane *lane) | |
| { | |
| struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane); | |
| kfree(hsic); | |
| } | |
| static const struct tegra_xusb_lane_ops tegra210_hsic_lane_ops = { | |
| .probe = tegra210_hsic_lane_probe, | |
| .remove = tegra210_hsic_lane_remove, | |
| }; | |
| static int tegra210_hsic_phy_init(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| u32 value; | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB2_PAD_MUX); | |
| value &= ~(XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_MASK << | |
| XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_SHIFT); | |
| value |= XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_XUSB << | |
| XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB2_PAD_MUX); | |
| return tegra210_xusb_padctl_enable(padctl); | |
| } | |
| static int tegra210_hsic_phy_exit(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| return tegra210_xusb_padctl_disable(lane->pad->padctl); | |
| } | |
| static int tegra210_hsic_phy_power_on(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane); | |
| struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| struct tegra210_xusb_padctl *priv; | |
| unsigned int index = lane->index; | |
| u32 value; | |
| int err; | |
| priv = to_tegra210_xusb_padctl(padctl); | |
| err = regulator_enable(pad->supply); | |
| if (err) | |
| return err; | |
| padctl_writel(padctl, hsic->strobe_trim, | |
| XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL); | |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index)); | |
| value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_MASK << | |
| XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_SHIFT); | |
| value |= (hsic->tx_rtune_p << | |
| XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_SHIFT); | |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index)); | |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL2(index)); | |
| value &= ~((XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK << | |
| XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) | | |
| (XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK << | |
| XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT)); | |
| value |= (hsic->rx_strobe_trim << | |
| XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) | | |
| (hsic->rx_data_trim << | |
| XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT); | |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL2(index)); | |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index)); | |
| value &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_STROBE | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_STROBE | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_STROBE); | |
| value |= XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_RPD_STROBE; | |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL0(index)); | |
| err = clk_prepare_enable(pad->clk); | |
| if (err) | |
| goto disable; | |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PAD_TRK_CTL); | |
| value &= ~((XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_MASK << | |
| XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_SHIFT) | | |
| (XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_MASK << | |
| XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_SHIFT)); | |
| value |= (XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_VAL << | |
| XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_SHIFT) | | |
| (XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_VAL << | |
| XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_SHIFT); | |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PAD_TRK_CTL); | |
| udelay(1); | |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PAD_TRK_CTL); | |
| value &= ~XUSB_PADCTL_HSIC_PAD_TRK_CTL_PD_TRK; | |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PAD_TRK_CTL); | |
| udelay(50); | |
| clk_disable_unprepare(pad->clk); | |
| return 0; | |
| disable: | |
| regulator_disable(pad->supply); | |
| return err; | |
| } | |
| static int tegra210_hsic_phy_power_off(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| unsigned int index = lane->index; | |
| u32 value; | |
| value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index)); | |
| value |= XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_STROBE | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_STROBE | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA0 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA1 | | |
| XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_STROBE; | |
| padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index)); | |
| regulator_disable(pad->supply); | |
| return 0; | |
| } | |
| static const struct phy_ops tegra210_hsic_phy_ops = { | |
| .init = tegra210_hsic_phy_init, | |
| .exit = tegra210_hsic_phy_exit, | |
| .power_on = tegra210_hsic_phy_power_on, | |
| .power_off = tegra210_hsic_phy_power_off, | |
| .owner = THIS_MODULE, | |
| }; | |
| static struct tegra_xusb_pad * | |
| tegra210_hsic_pad_probe(struct tegra_xusb_padctl *padctl, | |
| const struct tegra_xusb_pad_soc *soc, | |
| struct device_node *np) | |
| { | |
| struct tegra_xusb_hsic_pad *hsic; | |
| struct tegra_xusb_pad *pad; | |
| int err; | |
| hsic = kzalloc(sizeof(*hsic), GFP_KERNEL); | |
| if (!hsic) | |
| return ERR_PTR(-ENOMEM); | |
| pad = &hsic->base; | |
| pad->ops = &tegra210_hsic_lane_ops; | |
| pad->soc = soc; | |
| err = tegra_xusb_pad_init(pad, padctl, np); | |
| if (err < 0) { | |
| kfree(hsic); | |
| goto out; | |
| } | |
| hsic->clk = devm_clk_get(&pad->dev, "trk"); | |
| if (IS_ERR(hsic->clk)) { | |
| err = PTR_ERR(hsic->clk); | |
| dev_err(&pad->dev, "failed to get trk clock: %d\n", err); | |
| goto unregister; | |
| } | |
| err = tegra_xusb_pad_register(pad, &tegra210_hsic_phy_ops); | |
| if (err < 0) | |
| goto unregister; | |
| dev_set_drvdata(&pad->dev, pad); | |
| return pad; | |
| unregister: | |
| device_unregister(&pad->dev); | |
| out: | |
| return ERR_PTR(err); | |
| } | |
| static void tegra210_hsic_pad_remove(struct tegra_xusb_pad *pad) | |
| { | |
| struct tegra_xusb_hsic_pad *hsic = to_hsic_pad(pad); | |
| kfree(hsic); | |
| } | |
| static const struct tegra_xusb_pad_ops tegra210_hsic_ops = { | |
| .probe = tegra210_hsic_pad_probe, | |
| .remove = tegra210_hsic_pad_remove, | |
| }; | |
| static const struct tegra_xusb_pad_soc tegra210_hsic_pad = { | |
| .name = "hsic", | |
| .num_lanes = ARRAY_SIZE(tegra210_hsic_lanes), | |
| .lanes = tegra210_hsic_lanes, | |
| .ops = &tegra210_hsic_ops, | |
| }; | |
| static const char *tegra210_pcie_functions[] = { | |
| "pcie-x1", | |
| "usb3-ss", | |
| "sata", | |
| "pcie-x4", | |
| }; | |
| static const struct tegra_xusb_lane_soc tegra210_pcie_lanes[] = { | |
| TEGRA210_LANE("pcie-0", 0x028, 12, 0x3, pcie), | |
| TEGRA210_LANE("pcie-1", 0x028, 14, 0x3, pcie), | |
| TEGRA210_LANE("pcie-2", 0x028, 16, 0x3, pcie), | |
| TEGRA210_LANE("pcie-3", 0x028, 18, 0x3, pcie), | |
| TEGRA210_LANE("pcie-4", 0x028, 20, 0x3, pcie), | |
| TEGRA210_LANE("pcie-5", 0x028, 22, 0x3, pcie), | |
| TEGRA210_LANE("pcie-6", 0x028, 24, 0x3, pcie), | |
| }; | |
| static struct tegra_xusb_lane * | |
| tegra210_pcie_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, | |
| unsigned int index) | |
| { | |
| struct tegra_xusb_pcie_lane *pcie; | |
| int err; | |
| pcie = kzalloc(sizeof(*pcie), GFP_KERNEL); | |
| if (!pcie) | |
| return ERR_PTR(-ENOMEM); | |
| INIT_LIST_HEAD(&pcie->base.list); | |
| pcie->base.soc = &pad->soc->lanes[index]; | |
| pcie->base.index = index; | |
| pcie->base.pad = pad; | |
| pcie->base.np = np; | |
| err = tegra_xusb_lane_parse_dt(&pcie->base, np); | |
| if (err < 0) { | |
| kfree(pcie); | |
| return ERR_PTR(err); | |
| } | |
| return &pcie->base; | |
| } | |
| static void tegra210_pcie_lane_remove(struct tegra_xusb_lane *lane) | |
| { | |
| struct tegra_xusb_pcie_lane *pcie = to_pcie_lane(lane); | |
| kfree(pcie); | |
| } | |
| static const struct tegra_xusb_lane_ops tegra210_pcie_lane_ops = { | |
| .probe = tegra210_pcie_lane_probe, | |
| .remove = tegra210_pcie_lane_remove, | |
| }; | |
| static int tegra210_pcie_phy_init(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| return tegra210_xusb_padctl_enable(lane->pad->padctl); | |
| } | |
| static int tegra210_pcie_phy_exit(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| return tegra210_xusb_padctl_disable(lane->pad->padctl); | |
| } | |
| static int tegra210_pcie_phy_power_on(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| u32 value; | |
| int err; | |
| mutex_lock(&padctl->lock); | |
| err = tegra210_pex_uphy_enable(padctl); | |
| if (err < 0) | |
| goto unlock; | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); | |
| value |= XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); | |
| unlock: | |
| mutex_unlock(&padctl->lock); | |
| return err; | |
| } | |
| static int tegra210_pcie_phy_power_off(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| u32 value; | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); | |
| value &= ~XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); | |
| tegra210_pex_uphy_disable(padctl); | |
| return 0; | |
| } | |
| static const struct phy_ops tegra210_pcie_phy_ops = { | |
| .init = tegra210_pcie_phy_init, | |
| .exit = tegra210_pcie_phy_exit, | |
| .power_on = tegra210_pcie_phy_power_on, | |
| .power_off = tegra210_pcie_phy_power_off, | |
| .owner = THIS_MODULE, | |
| }; | |
| static struct tegra_xusb_pad * | |
| tegra210_pcie_pad_probe(struct tegra_xusb_padctl *padctl, | |
| const struct tegra_xusb_pad_soc *soc, | |
| struct device_node *np) | |
| { | |
| struct tegra_xusb_pcie_pad *pcie; | |
| struct tegra_xusb_pad *pad; | |
| int err; | |
| pcie = kzalloc(sizeof(*pcie), GFP_KERNEL); | |
| if (!pcie) | |
| return ERR_PTR(-ENOMEM); | |
| pad = &pcie->base; | |
| pad->ops = &tegra210_pcie_lane_ops; | |
| pad->soc = soc; | |
| err = tegra_xusb_pad_init(pad, padctl, np); | |
| if (err < 0) { | |
| kfree(pcie); | |
| goto out; | |
| } | |
| pcie->pll = devm_clk_get(&pad->dev, "pll"); | |
| if (IS_ERR(pcie->pll)) { | |
| err = PTR_ERR(pcie->pll); | |
| dev_err(&pad->dev, "failed to get PLL: %d\n", err); | |
| goto unregister; | |
| } | |
| pcie->rst = devm_reset_control_get(&pad->dev, "phy"); | |
| if (IS_ERR(pcie->rst)) { | |
| err = PTR_ERR(pcie->rst); | |
| dev_err(&pad->dev, "failed to get PCIe pad reset: %d\n", err); | |
| goto unregister; | |
| } | |
| err = tegra_xusb_pad_register(pad, &tegra210_pcie_phy_ops); | |
| if (err < 0) | |
| goto unregister; | |
| dev_set_drvdata(&pad->dev, pad); | |
| return pad; | |
| unregister: | |
| device_unregister(&pad->dev); | |
| out: | |
| return ERR_PTR(err); | |
| } | |
| static void tegra210_pcie_pad_remove(struct tegra_xusb_pad *pad) | |
| { | |
| struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(pad); | |
| kfree(pcie); | |
| } | |
| static const struct tegra_xusb_pad_ops tegra210_pcie_ops = { | |
| .probe = tegra210_pcie_pad_probe, | |
| .remove = tegra210_pcie_pad_remove, | |
| }; | |
| static const struct tegra_xusb_pad_soc tegra210_pcie_pad = { | |
| .name = "pcie", | |
| .num_lanes = ARRAY_SIZE(tegra210_pcie_lanes), | |
| .lanes = tegra210_pcie_lanes, | |
| .ops = &tegra210_pcie_ops, | |
| }; | |
| static const struct tegra_xusb_lane_soc tegra210_sata_lanes[] = { | |
| TEGRA210_LANE("sata-0", 0x028, 30, 0x3, pcie), | |
| }; | |
| static struct tegra_xusb_lane * | |
| tegra210_sata_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, | |
| unsigned int index) | |
| { | |
| struct tegra_xusb_sata_lane *sata; | |
| int err; | |
| sata = kzalloc(sizeof(*sata), GFP_KERNEL); | |
| if (!sata) | |
| return ERR_PTR(-ENOMEM); | |
| INIT_LIST_HEAD(&sata->base.list); | |
| sata->base.soc = &pad->soc->lanes[index]; | |
| sata->base.index = index; | |
| sata->base.pad = pad; | |
| sata->base.np = np; | |
| err = tegra_xusb_lane_parse_dt(&sata->base, np); | |
| if (err < 0) { | |
| kfree(sata); | |
| return ERR_PTR(err); | |
| } | |
| return &sata->base; | |
| } | |
| static void tegra210_sata_lane_remove(struct tegra_xusb_lane *lane) | |
| { | |
| struct tegra_xusb_sata_lane *sata = to_sata_lane(lane); | |
| kfree(sata); | |
| } | |
| static const struct tegra_xusb_lane_ops tegra210_sata_lane_ops = { | |
| .probe = tegra210_sata_lane_probe, | |
| .remove = tegra210_sata_lane_remove, | |
| }; | |
| static int tegra210_sata_phy_init(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| return tegra210_xusb_padctl_enable(lane->pad->padctl); | |
| } | |
| static int tegra210_sata_phy_exit(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| return tegra210_xusb_padctl_disable(lane->pad->padctl); | |
| } | |
| static int tegra210_sata_phy_power_on(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| u32 value; | |
| int err; | |
| mutex_lock(&padctl->lock); | |
| err = tegra210_sata_uphy_enable(padctl, false); | |
| if (err < 0) | |
| goto unlock; | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); | |
| value |= XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); | |
| unlock: | |
| mutex_unlock(&padctl->lock); | |
| return err; | |
| } | |
| static int tegra210_sata_phy_power_off(struct phy *phy) | |
| { | |
| struct tegra_xusb_lane *lane = phy_get_drvdata(phy); | |
| struct tegra_xusb_padctl *padctl = lane->pad->padctl; | |
| u32 value; | |
| value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); | |
| value &= ~XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); | |
| tegra210_sata_uphy_disable(lane->pad->padctl); | |
| return 0; | |
| } | |
| static const struct phy_ops tegra210_sata_phy_ops = { | |
| .init = tegra210_sata_phy_init, | |
| .exit = tegra210_sata_phy_exit, | |
| .power_on = tegra210_sata_phy_power_on, | |
| .power_off = tegra210_sata_phy_power_off, | |
| .owner = THIS_MODULE, | |
| }; | |
| static struct tegra_xusb_pad * | |
| tegra210_sata_pad_probe(struct tegra_xusb_padctl *padctl, | |
| const struct tegra_xusb_pad_soc *soc, | |
| struct device_node *np) | |
| { | |
| struct tegra_xusb_sata_pad *sata; | |
| struct tegra_xusb_pad *pad; | |
| int err; | |
| sata = kzalloc(sizeof(*sata), GFP_KERNEL); | |
| if (!sata) | |
| return ERR_PTR(-ENOMEM); | |
| pad = &sata->base; | |
| pad->ops = &tegra210_sata_lane_ops; | |
| pad->soc = soc; | |
| err = tegra_xusb_pad_init(pad, padctl, np); | |
| if (err < 0) { | |
| kfree(sata); | |
| goto out; | |
| } | |
| sata->rst = devm_reset_control_get(&pad->dev, "phy"); | |
| if (IS_ERR(sata->rst)) { | |
| err = PTR_ERR(sata->rst); | |
| dev_err(&pad->dev, "failed to get SATA pad reset: %d\n", err); | |
| goto unregister; | |
| } | |
| err = tegra_xusb_pad_register(pad, &tegra210_sata_phy_ops); | |
| if (err < 0) | |
| goto unregister; | |
| dev_set_drvdata(&pad->dev, pad); | |
| return pad; | |
| unregister: | |
| device_unregister(&pad->dev); | |
| out: | |
| return ERR_PTR(err); | |
| } | |
| static void tegra210_sata_pad_remove(struct tegra_xusb_pad *pad) | |
| { | |
| struct tegra_xusb_sata_pad *sata = to_sata_pad(pad); | |
| kfree(sata); | |
| } | |
| static const struct tegra_xusb_pad_ops tegra210_sata_ops = { | |
| .probe = tegra210_sata_pad_probe, | |
| .remove = tegra210_sata_pad_remove, | |
| }; | |
| static const struct tegra_xusb_pad_soc tegra210_sata_pad = { | |
| .name = "sata", | |
| .num_lanes = ARRAY_SIZE(tegra210_sata_lanes), | |
| .lanes = tegra210_sata_lanes, | |
| .ops = &tegra210_sata_ops, | |
| }; | |
| static const struct tegra_xusb_pad_soc * const tegra210_pads[] = { | |
| &tegra210_usb2_pad, | |
| &tegra210_hsic_pad, | |
| &tegra210_pcie_pad, | |
| &tegra210_sata_pad, | |
| }; | |
| static int tegra210_usb2_port_enable(struct tegra_xusb_port *port) | |
| { | |
| return 0; | |
| } | |
| static void tegra210_usb2_port_disable(struct tegra_xusb_port *port) | |
| { | |
| } | |
| static struct tegra_xusb_lane * | |
| tegra210_usb2_port_map(struct tegra_xusb_port *port) | |
| { | |
| return tegra_xusb_find_lane(port->padctl, "usb2", port->index); | |
| } | |
| static const struct tegra_xusb_port_ops tegra210_usb2_port_ops = { | |
| .enable = tegra210_usb2_port_enable, | |
| .disable = tegra210_usb2_port_disable, | |
| .map = tegra210_usb2_port_map, | |
| }; | |
| static int tegra210_hsic_port_enable(struct tegra_xusb_port *port) | |
| { | |
| return 0; | |
| } | |
| static void tegra210_hsic_port_disable(struct tegra_xusb_port *port) | |
| { | |
| } | |
| static struct tegra_xusb_lane * | |
| tegra210_hsic_port_map(struct tegra_xusb_port *port) | |
| { | |
| return tegra_xusb_find_lane(port->padctl, "hsic", port->index); | |
| } | |
| static const struct tegra_xusb_port_ops tegra210_hsic_port_ops = { | |
| .enable = tegra210_hsic_port_enable, | |
| .disable = tegra210_hsic_port_disable, | |
| .map = tegra210_hsic_port_map, | |
| }; | |
| static int tegra210_usb3_port_enable(struct tegra_xusb_port *port) | |
| { | |
| struct tegra_xusb_usb3_port *usb3 = to_usb3_port(port); | |
| struct tegra_xusb_padctl *padctl = port->padctl; | |
| struct tegra_xusb_lane *lane = usb3->base.lane; | |
| unsigned int index = port->index; | |
| u32 value; | |
| int err; | |
| value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP); | |
| if (!usb3->internal) | |
| value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index); | |
| else | |
| value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index); | |
| value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(index); | |
| value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(index, usb3->port); | |
| padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP); | |
| /* | |
| * TODO: move this code into the PCIe/SATA PHY ->power_on() callbacks | |
| * and conditionalize based on mux function? This seems to work, but | |
| * might not be the exact proper sequence. | |
| */ | |
| err = regulator_enable(usb3->supply); | |
| if (err < 0) | |
| return err; | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_USB3_PADX_ECTL1(index)); | |
| value &= ~(XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_MASK << | |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_SHIFT); | |
| value |= XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_VAL << | |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_USB3_PADX_ECTL1(index)); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_USB3_PADX_ECTL2(index)); | |
| value &= ~(XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_MASK << | |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_SHIFT); | |
| value |= XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_VAL << | |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_USB3_PADX_ECTL2(index)); | |
| padctl_writel(padctl, XUSB_PADCTL_UPHY_USB3_PAD_ECTL3_RX_DFE_VAL, | |
| XUSB_PADCTL_UPHY_USB3_PADX_ECTL3(index)); | |
| value = padctl_readl(padctl, XUSB_PADCTL_UPHY_USB3_PADX_ECTL4(index)); | |
| value &= ~(XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_MASK << | |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_SHIFT); | |
| value |= XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_VAL << | |
| XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_SHIFT; | |
| padctl_writel(padctl, value, XUSB_PADCTL_UPHY_USB3_PADX_ECTL4(index)); | |
| padctl_writel(padctl, XUSB_PADCTL_UPHY_USB3_PAD_ECTL6_RX_EQ_CTRL_H_VAL, | |
| XUSB_PADCTL_UPHY_USB3_PADX_ECTL6(index)); | |
| if (lane->pad == padctl->sata) | |
| err = tegra210_sata_uphy_enable(padctl, true); | |
| else | |
| err = tegra210_pex_uphy_enable(padctl); | |
| if (err) { | |
| dev_err(&port->dev, "%s: failed to enable UPHY: %d\n", | |
| __func__, err); | |
| return err; | |
| } | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN(index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| usleep_range(100, 200); | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| usleep_range(100, 200); | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN(index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| return 0; | |
| } | |
| static void tegra210_usb3_port_disable(struct tegra_xusb_port *port) | |
| { | |
| struct tegra_xusb_usb3_port *usb3 = to_usb3_port(port); | |
| struct tegra_xusb_padctl *padctl = port->padctl; | |
| struct tegra_xusb_lane *lane = port->lane; | |
| unsigned int index = port->index; | |
| u32 value; | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| usleep_range(100, 200); | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN(index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| usleep_range(250, 350); | |
| value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); | |
| value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN(index); | |
| padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); | |
| if (lane->pad == padctl->sata) | |
| tegra210_sata_uphy_disable(padctl); | |
| else | |
| tegra210_pex_uphy_disable(padctl); | |
| regulator_disable(usb3->supply); | |
| value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP); | |
| value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(index); | |
| value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(index, 0x7); | |
| padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP); | |
| } | |
| static const struct tegra_xusb_lane_map tegra210_usb3_map[] = { | |
| { 0, "pcie", 6 }, | |
| { 1, "pcie", 5 }, | |
| { 2, "pcie", 0 }, | |
| { 2, "pcie", 3 }, | |
| { 3, "pcie", 4 }, | |
| { 3, "pcie", 4 }, | |
| { 0, NULL, 0 } | |
| }; | |
| static struct tegra_xusb_lane * | |
| tegra210_usb3_port_map(struct tegra_xusb_port *port) | |
| { | |
| return tegra_xusb_port_find_lane(port, tegra210_usb3_map, "usb3-ss"); | |
| } | |
| static const struct tegra_xusb_port_ops tegra210_usb3_port_ops = { | |
| .enable = tegra210_usb3_port_enable, | |
| .disable = tegra210_usb3_port_disable, | |
| .map = tegra210_usb3_port_map, | |
| }; | |
| static int | |
| tegra210_xusb_read_fuse_calibration(struct tegra210_xusb_fuse_calibration *fuse) | |
| { | |
| unsigned int i; | |
| u32 value; | |
| int err; | |
| err = tegra_fuse_readl(TEGRA_FUSE_SKU_CALIB_0, &value); | |
| if (err < 0) | |
| return err; | |
| for (i = 0; i < ARRAY_SIZE(fuse->hs_curr_level); i++) { | |
| fuse->hs_curr_level[i] = | |
| (value >> FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(i)) & | |
| FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK; | |
| } | |
| fuse->hs_term_range_adj = | |
| (value >> FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT) & | |
| FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK; | |
| err = tegra_fuse_readl(TEGRA_FUSE_USB_CALIB_EXT_0, &value); | |
| if (err < 0) | |
| return err; | |
| fuse->rpd_ctrl = | |
| (value >> FUSE_USB_CALIB_EXT_RPD_CTRL_SHIFT) & | |
| FUSE_USB_CALIB_EXT_RPD_CTRL_MASK; | |
| return 0; | |
| } | |
| static struct tegra_xusb_padctl * | |
| tegra210_xusb_padctl_probe(struct device *dev, | |
| const struct tegra_xusb_padctl_soc *soc) | |
| { | |
| struct tegra210_xusb_padctl *padctl; | |
| int err; | |
| padctl = devm_kzalloc(dev, sizeof(*padctl), GFP_KERNEL); | |
| if (!padctl) | |
| return ERR_PTR(-ENOMEM); | |
| padctl->base.dev = dev; | |
| padctl->base.soc = soc; | |
| err = tegra210_xusb_read_fuse_calibration(&padctl->fuse); | |
| if (err < 0) | |
| return ERR_PTR(err); | |
| return &padctl->base; | |
| } | |
| static void tegra210_xusb_padctl_remove(struct tegra_xusb_padctl *padctl) | |
| { | |
| } | |
| static const struct tegra_xusb_padctl_ops tegra210_xusb_padctl_ops = { | |
| .probe = tegra210_xusb_padctl_probe, | |
| .remove = tegra210_xusb_padctl_remove, | |
| .usb3_set_lfps_detect = tegra210_usb3_set_lfps_detect, | |
| .hsic_set_idle = tegra210_hsic_set_idle, | |
| }; | |
| const struct tegra_xusb_padctl_soc tegra210_xusb_padctl_soc = { | |
| .num_pads = ARRAY_SIZE(tegra210_pads), | |
| .pads = tegra210_pads, | |
| .ports = { | |
| .usb2 = { | |
| .ops = &tegra210_usb2_port_ops, | |
| .count = 4, | |
| }, | |
| .hsic = { | |
| .ops = &tegra210_hsic_port_ops, | |
| .count = 1, | |
| }, | |
| .usb3 = { | |
| .ops = &tegra210_usb3_port_ops, | |
| .count = 4, | |
| }, | |
| }, | |
| .ops = &tegra210_xusb_padctl_ops, | |
| }; | |
| EXPORT_SYMBOL_GPL(tegra210_xusb_padctl_soc); | |
| MODULE_AUTHOR("Andrew Bresticker <abrestic@chromium.org>"); | |
| MODULE_DESCRIPTION("NVIDIA Tegra 210 XUSB Pad Controller driver"); | |
| MODULE_LICENSE("GPL v2"); |