|  | /* | 
|  | * 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"); |