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linux/drivers/phy/tegra/xusb-tegra210.c
JC Kuo 0baabcbedd phy: tegra: xusb: Tegra210 host mode VBUS control 
To support XUSB host controller ELPG, this commit moves VBUS control
.phy_power_on()/.phy_power_off() to .phy_init()/.phy_exit().
When XUSB host controller enters ELPG, host driver invokes
.phy_power_off(), VBUS should remain ON so that USB devices will not
disconnect. VBUS can be turned OFF when host driver invokes
.phy_exit() which indicates disabling a USB port.

Signed-off-by: JC Kuo <jckuo@nvidia.com>
Acked-By: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2021-06-03 14:52:45 +02:00

3297 lines
100 KiB
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// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2014-2020, NVIDIA CORPORATION. All rights reserved.
* Copyright (C) 2015 Google, Inc.
*/
#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/of_platform.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/regmap.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_DISABLED(x) (0x0 << ((x) * 4))
#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(x) (0x1 << ((x) * 4))
#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_DEVICE(x) (0x2 << ((x) * 4))
#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_OTG(x) (0x3 << ((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_SS_PORT_MAP_PORT_DISABLED 0x7
#define XUSB_PADCTL_ELPG_PROGRAM_0 0x20
#define USB2_PORT_WAKE_INTERRUPT_ENABLE(x) BIT((x))
#define USB2_PORT_WAKEUP_EVENT(x) BIT((x) + 7)
#define SS_PORT_WAKE_INTERRUPT_ENABLE(x) BIT((x) + 14)
#define SS_PORT_WAKEUP_EVENT(x) BIT((x) + 21)
#define USB2_HSIC_PORT_WAKE_INTERRUPT_ENABLE(x) BIT((x) + 28)
#define USB2_HSIC_PORT_WAKEUP_EVENT(x) BIT((x) + 30)
#define ALL_WAKE_EVENTS ( \
USB2_PORT_WAKEUP_EVENT(0) | USB2_PORT_WAKEUP_EVENT(1) | \
USB2_PORT_WAKEUP_EVENT(2) | USB2_PORT_WAKEUP_EVENT(3) | \
SS_PORT_WAKEUP_EVENT(0) | SS_PORT_WAKEUP_EVENT(1) | \
SS_PORT_WAKEUP_EVENT(2) | SS_PORT_WAKEUP_EVENT(3) | \
USB2_HSIC_PORT_WAKEUP_EVENT(0))
#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_CTL0(x) (0x080 + (x) * 0x40)
#define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL0_ZIP (1 << 18)
#define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL0_ZIN (1 << 22)
#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_LEV_VAL 0x1
#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 RPD_CTRL(x) (((x) & 0x1f) << 26)
#define RPD_CTRL_VALUE(x) (((x) >> 26) & 0x1f)
#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 TCTRL_VALUE(x) (((x) & 0x3f) >> 0)
#define PCTRL_VALUE(x) (((x) >> 6) & 0x3f)
#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_XDIGCLK_EN (1 << 19)
#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_MISC_PAD_PX_CTL2(x) (0x464 + (x) * 0x40)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_IDDQ BIT(0)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_IDDQ_OVRD BIT(1)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_SLEEP_MASK GENMASK(5, 4)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_SLEEP_VAL GENMASK(5, 4)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_PWR_OVRD BIT(24)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_IDDQ BIT(8)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_IDDQ_OVRD BIT(9)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_SLEEP_MASK GENMASK(13, 12)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_SLEEP_VAL GENMASK(13, 12)
#define XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_PWR_OVRD BIT(25)
#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_MISC_PAD_S0_CTL2 0x964
#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
#define XUSB_PADCTL_USB2_VBUS_ID 0xc60
#define XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_VBUS_ON (1 << 14)
#define XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_SHIFT 18
#define XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_MASK 0xf
#define XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_FLOATING 8
#define XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_GROUNDED 0
/* USB2 SLEEPWALK registers */
#define UTMIP(_port, _offset1, _offset2) \
(((_port) <= 2) ? (_offset1) : (_offset2))
#define PMC_UTMIP_UHSIC_SLEEP_CFG(x) UTMIP(x, 0x1fc, 0x4d0)
#define UTMIP_MASTER_ENABLE(x) UTMIP(x, BIT(8 * (x)), BIT(0))
#define UTMIP_FSLS_USE_PMC(x) UTMIP(x, BIT(8 * (x) + 1), \
BIT(1))
#define UTMIP_PCTRL_USE_PMC(x) UTMIP(x, BIT(8 * (x) + 2), \
BIT(2))
#define UTMIP_TCTRL_USE_PMC(x) UTMIP(x, BIT(8 * (x) + 3), \
BIT(3))
#define UTMIP_WAKE_VAL(_port, _value) (((_value) & 0xf) << \
(UTMIP(_port, 8 * (_port) + 4, 4)))
#define UTMIP_WAKE_VAL_NONE(_port) UTMIP_WAKE_VAL(_port, 12)
#define UTMIP_WAKE_VAL_ANY(_port) UTMIP_WAKE_VAL(_port, 15)
#define PMC_UTMIP_UHSIC_SLEEP_CFG1 (0x4d0)
#define UTMIP_RPU_SWITC_LOW_USE_PMC_PX(x) BIT((x) + 8)
#define UTMIP_RPD_CTRL_USE_PMC_PX(x) BIT((x) + 16)
#define PMC_UTMIP_MASTER_CONFIG (0x274)
#define UTMIP_PWR(x) UTMIP(x, BIT(x), BIT(4))
#define UHSIC_PWR BIT(3)
#define PMC_USB_DEBOUNCE_DEL (0xec)
#define DEBOUNCE_VAL(x) (((x) & 0xffff) << 0)
#define UTMIP_LINE_DEB_CNT(x) (((x) & 0xf) << 16)
#define UHSIC_LINE_DEB_CNT(x) (((x) & 0xf) << 20)
#define PMC_UTMIP_UHSIC_FAKE(x) UTMIP(x, 0x218, 0x294)
#define UTMIP_FAKE_USBOP_VAL(x) UTMIP(x, BIT(4 * (x)), BIT(8))
#define UTMIP_FAKE_USBON_VAL(x) UTMIP(x, BIT(4 * (x) + 1), \
BIT(9))
#define UTMIP_FAKE_USBOP_EN(x) UTMIP(x, BIT(4 * (x) + 2), \
BIT(10))
#define UTMIP_FAKE_USBON_EN(x) UTMIP(x, BIT(4 * (x) + 3), \
BIT(11))
#define PMC_UTMIP_UHSIC_SLEEPWALK_CFG(x) UTMIP(x, 0x200, 0x288)
#define UTMIP_LINEVAL_WALK_EN(x) UTMIP(x, BIT(8 * (x) + 7), \
BIT(15))
#define PMC_USB_AO (0xf0)
#define USBOP_VAL_PD(x) UTMIP(x, BIT(4 * (x)), BIT(20))
#define USBON_VAL_PD(x) UTMIP(x, BIT(4 * (x) + 1), \
BIT(21))
#define STROBE_VAL_PD BIT(12)
#define DATA0_VAL_PD BIT(13)
#define DATA1_VAL_PD BIT(24)
#define PMC_UTMIP_UHSIC_SAVED_STATE(x) UTMIP(x, 0x1f0, 0x280)
#define SPEED(_port, _value) (((_value) & 0x3) << \
(UTMIP(_port, 8 * (_port), 8)))
#define UTMI_HS(_port) SPEED(_port, 0)
#define UTMI_FS(_port) SPEED(_port, 1)
#define UTMI_LS(_port) SPEED(_port, 2)
#define UTMI_RST(_port) SPEED(_port, 3)
#define PMC_UTMIP_UHSIC_TRIGGERS (0x1ec)
#define UTMIP_CLR_WALK_PTR(x) UTMIP(x, BIT(x), BIT(16))
#define UTMIP_CAP_CFG(x) UTMIP(x, BIT((x) + 4), BIT(17))
#define UTMIP_CLR_WAKE_ALARM(x) UTMIP(x, BIT((x) + 12), \
BIT(19))
#define UHSIC_CLR_WALK_PTR BIT(3)
#define UHSIC_CLR_WAKE_ALARM BIT(15)
#define PMC_UTMIP_SLEEPWALK_PX(x) UTMIP(x, 0x204 + (4 * (x)), \
0x4e0)
/* phase A */
#define UTMIP_USBOP_RPD_A BIT(0)
#define UTMIP_USBON_RPD_A BIT(1)
#define UTMIP_AP_A BIT(4)
#define UTMIP_AN_A BIT(5)
#define UTMIP_HIGHZ_A BIT(6)
/* phase B */
#define UTMIP_USBOP_RPD_B BIT(8)
#define UTMIP_USBON_RPD_B BIT(9)
#define UTMIP_AP_B BIT(12)
#define UTMIP_AN_B BIT(13)
#define UTMIP_HIGHZ_B BIT(14)
/* phase C */
#define UTMIP_USBOP_RPD_C BIT(16)
#define UTMIP_USBON_RPD_C BIT(17)
#define UTMIP_AP_C BIT(20)
#define UTMIP_AN_C BIT(21)
#define UTMIP_HIGHZ_C BIT(22)
/* phase D */
#define UTMIP_USBOP_RPD_D BIT(24)
#define UTMIP_USBON_RPD_D BIT(25)
#define UTMIP_AP_D BIT(28)
#define UTMIP_AN_D BIT(29)
#define UTMIP_HIGHZ_D BIT(30)
#define PMC_UTMIP_UHSIC_LINE_WAKEUP (0x26c)
#define UTMIP_LINE_WAKEUP_EN(x) UTMIP(x, BIT(x), BIT(4))
#define UHSIC_LINE_WAKEUP_EN BIT(3)
#define PMC_UTMIP_TERM_PAD_CFG (0x1f8)
#define PCTRL_VAL(x) (((x) & 0x3f) << 1)
#define TCTRL_VAL(x) (((x) & 0x3f) << 7)
#define PMC_UTMIP_PAD_CFGX(x) (0x4c0 + (4 * (x)))
#define RPD_CTRL_PX(x) (((x) & 0x1f) << 22)
#define PMC_UHSIC_SLEEP_CFG PMC_UTMIP_UHSIC_SLEEP_CFG(0)
#define UHSIC_MASTER_ENABLE BIT(24)
#define UHSIC_WAKE_VAL(_value) (((_value) & 0xf) << 28)
#define UHSIC_WAKE_VAL_SD10 UHSIC_WAKE_VAL(2)
#define UHSIC_WAKE_VAL_NONE UHSIC_WAKE_VAL(12)
#define PMC_UHSIC_FAKE PMC_UTMIP_UHSIC_FAKE(0)
#define UHSIC_FAKE_STROBE_VAL BIT(12)
#define UHSIC_FAKE_DATA_VAL BIT(13)
#define UHSIC_FAKE_STROBE_EN BIT(14)
#define UHSIC_FAKE_DATA_EN BIT(15)
#define PMC_UHSIC_SAVED_STATE PMC_UTMIP_UHSIC_SAVED_STATE(0)
#define UHSIC_MODE(_value) (((_value) & 0x1) << 24)
#define UHSIC_HS UHSIC_MODE(0)
#define UHSIC_RST UHSIC_MODE(1)
#define PMC_UHSIC_SLEEPWALK_CFG PMC_UTMIP_UHSIC_SLEEPWALK_CFG(0)
#define UHSIC_WAKE_WALK_EN BIT(30)
#define UHSIC_LINEVAL_WALK_EN BIT(31)
#define PMC_UHSIC_SLEEPWALK_P0 (0x210)
#define UHSIC_DATA0_RPD_A BIT(1)
#define UHSIC_DATA0_RPU_B BIT(11)
#define UHSIC_DATA0_RPU_C BIT(19)
#define UHSIC_DATA0_RPU_D BIT(27)
#define UHSIC_STROBE_RPU_A BIT(2)
#define UHSIC_STROBE_RPD_B BIT(8)
#define UHSIC_STROBE_RPD_C BIT(16)
#define UHSIC_STROBE_RPD_D BIT(24)
struct tegra210_xusb_fuse_calibration {
u32 hs_curr_level[4];
u32 hs_term_range_adj;
u32 rpd_ctrl;
};
struct tegra210_xusb_padctl_context {
u32 usb2_pad_mux;
u32 usb2_port_cap;
u32 ss_port_map;
u32 usb3_pad_mux;
};
struct tegra210_xusb_padctl {
struct tegra_xusb_padctl base;
struct regmap *regmap;
struct tegra210_xusb_fuse_calibration fuse;
struct tegra210_xusb_padctl_context context;
};
static inline struct tegra210_xusb_padctl *
to_tegra210_xusb_padctl(struct tegra_xusb_padctl *padctl)
{
return container_of(padctl, struct tegra210_xusb_padctl, base);
}
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, "sata", 0 },
{ 0, NULL, 0 }
};
static int tegra210_usb3_lane_map(struct tegra_xusb_lane *lane)
{
const struct tegra_xusb_lane_map *map;
for (map = tegra210_usb3_map; map->type; map++) {
if (map->index == lane->index &&
strcmp(map->type, lane->pad->soc->name) == 0) {
dev_dbg(lane->pad->padctl->dev, "lane = %s map to port = usb3-%d\n",
lane->pad->soc->lanes[lane->index].name, map->port);
return map->port;
}
}
return -EINVAL;
}
/* 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;
unsigned int i;
int err;
if (pcie->enable)
return 0;
err = clk_prepare_enable(pcie->pll);
if (err < 0)
return err;
if (tegra210_plle_hw_sequence_is_enabled())
goto skip_pll_init;
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();
skip_pll_init:
pcie->enable = true;
for (i = 0; i < padctl->pcie->soc->num_lanes; i++) {
value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
value |= XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(i);
padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
}
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);
u32 value;
unsigned int i;
if (WARN_ON(!pcie->enable))
return;
pcie->enable = false;
for (i = 0; i < padctl->pcie->soc->num_lanes; i++) {
value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
value &= ~XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(i);
padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
}
clk_disable_unprepare(pcie->pll);
}
/* must be called under padctl->lock */
static int tegra210_sata_uphy_enable(struct tegra_xusb_padctl *padctl)
{
struct tegra_xusb_sata_pad *sata = to_sata_pad(padctl->sata);
struct tegra_xusb_lane *lane = tegra_xusb_find_lane(padctl, "sata", 0);
unsigned long timeout;
u32 value;
unsigned int i;
int err;
bool usb;
if (sata->enable)
return 0;
if (IS_ERR(lane))
return 0;
if (tegra210_plle_hw_sequence_is_enabled())
goto skip_pll_init;
usb = tegra_xusb_lane_check(lane, "usb3-ss");
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);
value &= ~XUSB_PADCTL_UPHY_PLL_CTL4_XDIGCLK_EN;
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();
skip_pll_init:
sata->enable = true;
for (i = 0; i < padctl->sata->soc->num_lanes; i++) {
value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
value |= XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(i);
padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
}
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);
u32 value;
unsigned int i;
if (WARN_ON(!sata->enable))
return;
sata->enable = false;
for (i = 0; i < padctl->sata->soc->num_lanes; i++) {
value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
value &= ~XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(i);
padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
}
clk_disable_unprepare(sata->pll);
}
static void tegra210_aux_mux_lp0_clamp_disable(struct tegra_xusb_padctl *padctl)
{
u32 value;
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);
}
static void tegra210_aux_mux_lp0_clamp_enable(struct tegra_xusb_padctl *padctl)
{
u32 value;
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);
}
static int tegra210_uphy_init(struct tegra_xusb_padctl *padctl)
{
if (padctl->pcie)
tegra210_pex_uphy_enable(padctl);
if (padctl->sata)
tegra210_sata_uphy_enable(padctl);
if (!tegra210_plle_hw_sequence_is_enabled())
tegra210_plle_hw_sequence_start();
else
dev_dbg(padctl->dev, "PLLE is already in HW control\n");
tegra210_aux_mux_lp0_clamp_disable(padctl);
return 0;
}
static void __maybe_unused
tegra210_uphy_deinit(struct tegra_xusb_padctl *padctl)
{
tegra210_aux_mux_lp0_clamp_enable(padctl);
if (padctl->sata)
tegra210_sata_uphy_disable(padctl);
if (padctl->pcie)
tegra210_pex_uphy_disable(padctl);
}
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_enable_phy_sleepwalk(struct tegra_xusb_lane *lane,
enum usb_device_speed speed)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
int port = tegra210_usb3_lane_map(lane);
struct device *dev = padctl->dev;
u32 value;
if (port < 0) {
dev_err(dev, "invalid usb3 port number\n");
return -EINVAL;
}
mutex_lock(&padctl->lock);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1);
value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(port);
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(port);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1);
usleep_range(250, 350);
mutex_unlock(&padctl->lock);
return 0;
}
static int tegra210_usb3_disable_phy_sleepwalk(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
int port = tegra210_usb3_lane_map(lane);
struct device *dev = padctl->dev;
u32 value;
if (port < 0) {
dev_err(dev, "invalid usb3 port number\n");
return -EINVAL;
}
mutex_lock(&padctl->lock);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1);
value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(port);
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(port);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1);
mutex_unlock(&padctl->lock);
return 0;
}
static int tegra210_usb3_enable_phy_wake(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
int port = tegra210_usb3_lane_map(lane);
struct device *dev = padctl->dev;
u32 value;
if (port < 0) {
dev_err(dev, "invalid usb3 port number\n");
return -EINVAL;
}
mutex_lock(&padctl->lock);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value |= SS_PORT_WAKEUP_EVENT(port);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
usleep_range(10, 20);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value |= SS_PORT_WAKE_INTERRUPT_ENABLE(port);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
mutex_unlock(&padctl->lock);
return 0;
}
static int tegra210_usb3_disable_phy_wake(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
int port = tegra210_usb3_lane_map(lane);
struct device *dev = padctl->dev;
u32 value;
if (port < 0) {
dev_err(dev, "invalid usb3 port number\n");
return -EINVAL;
}
mutex_lock(&padctl->lock);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value &= ~SS_PORT_WAKE_INTERRUPT_ENABLE(port);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
usleep_range(10, 20);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value |= SS_PORT_WAKEUP_EVENT(port);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
mutex_unlock(&padctl->lock);
return 0;
}
static bool tegra210_usb3_phy_remote_wake_detected(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
int index = tegra210_usb3_lane_map(lane);
u32 value;
if (index < 0)
return false;
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
if ((value & SS_PORT_WAKE_INTERRUPT_ENABLE(index)) && (value & SS_PORT_WAKEUP_EVENT(index)))
return true;
return false;
}
static int tegra210_utmi_enable_phy_wake(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
unsigned int index = lane->index;
u32 value;
mutex_lock(&padctl->lock);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value |= USB2_PORT_WAKEUP_EVENT(index);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
usleep_range(10, 20);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value |= USB2_PORT_WAKE_INTERRUPT_ENABLE(index);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
mutex_unlock(&padctl->lock);
return 0;
}
static int tegra210_utmi_disable_phy_wake(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
unsigned int index = lane->index;
u32 value;
mutex_lock(&padctl->lock);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value &= ~USB2_PORT_WAKE_INTERRUPT_ENABLE(index);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
usleep_range(10, 20);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value |= USB2_PORT_WAKEUP_EVENT(index);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
mutex_unlock(&padctl->lock);
return 0;
}
static bool tegra210_utmi_phy_remote_wake_detected(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
unsigned int index = lane->index;
u32 value;
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
if ((value & USB2_PORT_WAKE_INTERRUPT_ENABLE(index)) &&
(value & USB2_PORT_WAKEUP_EVENT(index)))
return true;
return false;
}
static int tegra210_hsic_enable_phy_wake(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
unsigned int index = lane->index;
u32 value;
mutex_lock(&padctl->lock);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value |= USB2_HSIC_PORT_WAKEUP_EVENT(index);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
usleep_range(10, 20);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value |= USB2_HSIC_PORT_WAKE_INTERRUPT_ENABLE(index);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
mutex_unlock(&padctl->lock);
return 0;
}
static int tegra210_hsic_disable_phy_wake(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
unsigned int index = lane->index;
u32 value;
mutex_lock(&padctl->lock);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value &= ~USB2_HSIC_PORT_WAKE_INTERRUPT_ENABLE(index);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
usleep_range(10, 20);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
value &= ~ALL_WAKE_EVENTS;
value |= USB2_HSIC_PORT_WAKEUP_EVENT(index);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM_0);
mutex_unlock(&padctl->lock);
return 0;
}
static bool tegra210_hsic_phy_remote_wake_detected(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
unsigned int index = lane->index;
u32 value;
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM_0);
if ((value & USB2_HSIC_PORT_WAKE_INTERRUPT_ENABLE(index)) &&
(value & USB2_HSIC_PORT_WAKEUP_EVENT(index)))
return true;
return false;
}
#define padctl_pmc_readl(_priv, _offset) \
({ \
u32 value; \
WARN(regmap_read(_priv->regmap, _offset, &value), "read %s failed\n", #_offset);\
value; \
})
#define padctl_pmc_writel(_priv, _value, _offset) \
WARN(regmap_write(_priv->regmap, _offset, _value), "write %s failed\n", #_offset)
static int tegra210_pmc_utmi_enable_phy_sleepwalk(struct tegra_xusb_lane *lane,
enum usb_device_speed speed)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
struct tegra210_xusb_padctl *priv = to_tegra210_xusb_padctl(padctl);
unsigned int port = lane->index;
u32 value, tctrl, pctrl, rpd_ctrl;
if (!priv->regmap)
return -EOPNOTSUPP;
if (speed > USB_SPEED_HIGH)
return -EINVAL;
value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL1);
tctrl = TCTRL_VALUE(value);
pctrl = PCTRL_VALUE(value);
value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(port));
rpd_ctrl = RPD_CTRL_VALUE(value);
/* ensure sleepwalk logic is disabled */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value &= ~UTMIP_MASTER_ENABLE(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
/* ensure sleepwalk logics are in low power mode */
value = padctl_pmc_readl(priv, PMC_UTMIP_MASTER_CONFIG);
value |= UTMIP_PWR(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_MASTER_CONFIG);
/* set debounce time */
value = padctl_pmc_readl(priv, PMC_USB_DEBOUNCE_DEL);
value &= ~UTMIP_LINE_DEB_CNT(~0);
value |= UTMIP_LINE_DEB_CNT(0x1);
padctl_pmc_writel(priv, value, PMC_USB_DEBOUNCE_DEL);
/* ensure fake events of sleepwalk logic are desiabled */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_FAKE(port));
value &= ~(UTMIP_FAKE_USBOP_VAL(port) | UTMIP_FAKE_USBON_VAL(port) |
UTMIP_FAKE_USBOP_EN(port) | UTMIP_FAKE_USBON_EN(port));
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_FAKE(port));
/* ensure wake events of sleepwalk logic are not latched */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_LINE_WAKEUP);
value &= ~UTMIP_LINE_WAKEUP_EN(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_LINE_WAKEUP);
/* disable wake event triggers of sleepwalk logic */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value &= ~UTMIP_WAKE_VAL(port, ~0);
value |= UTMIP_WAKE_VAL_NONE(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
/* power down the line state detectors of the pad */
value = padctl_pmc_readl(priv, PMC_USB_AO);
value |= (USBOP_VAL_PD(port) | USBON_VAL_PD(port));
padctl_pmc_writel(priv, value, PMC_USB_AO);
/* save state per speed */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SAVED_STATE(port));
value &= ~SPEED(port, ~0);
switch (speed) {
case USB_SPEED_HIGH:
value |= UTMI_HS(port);
break;
case USB_SPEED_FULL:
value |= UTMI_FS(port);
break;
case USB_SPEED_LOW:
value |= UTMI_LS(port);
break;
default:
value |= UTMI_RST(port);
break;
}
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SAVED_STATE(port));
/* enable the trigger of the sleepwalk logic */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEPWALK_CFG(port));
value |= UTMIP_LINEVAL_WALK_EN(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEPWALK_CFG(port));
/*
* Reset the walk pointer and clear the alarm of the sleepwalk logic,
* as well as capture the configuration of the USB2.0 pad.
*/
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_TRIGGERS);
value |= UTMIP_CLR_WALK_PTR(port) | UTMIP_CLR_WAKE_ALARM(port) | UTMIP_CAP_CFG(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_TRIGGERS);
/* program electrical parameters read from XUSB PADCTL */
value = padctl_pmc_readl(priv, PMC_UTMIP_TERM_PAD_CFG);
value &= ~(TCTRL_VAL(~0) | PCTRL_VAL(~0));
value |= (TCTRL_VAL(tctrl) | PCTRL_VAL(pctrl));
padctl_pmc_writel(priv, value, PMC_UTMIP_TERM_PAD_CFG);
value = padctl_pmc_readl(priv, PMC_UTMIP_PAD_CFGX(port));
value &= ~RPD_CTRL_PX(~0);
value |= RPD_CTRL_PX(rpd_ctrl);
padctl_pmc_writel(priv, value, PMC_UTMIP_PAD_CFGX(port));
/*
* Set up the pull-ups and pull-downs of the signals during the four
* stages of sleepwalk. If a device is connected, program sleepwalk
* logic to maintain a J and keep driving K upon seeing remote wake.
*/
value = padctl_pmc_readl(priv, PMC_UTMIP_SLEEPWALK_PX(port));
value = UTMIP_USBOP_RPD_A | UTMIP_USBOP_RPD_B | UTMIP_USBOP_RPD_C | UTMIP_USBOP_RPD_D;
value |= UTMIP_USBON_RPD_A | UTMIP_USBON_RPD_B | UTMIP_USBON_RPD_C | UTMIP_USBON_RPD_D;
switch (speed) {
case USB_SPEED_HIGH:
case USB_SPEED_FULL:
/* J state: D+/D- = high/low, K state: D+/D- = low/high */
value |= UTMIP_HIGHZ_A;
value |= UTMIP_AP_A;
value |= UTMIP_AN_B | UTMIP_AN_C | UTMIP_AN_D;
break;
case USB_SPEED_LOW:
/* J state: D+/D- = low/high, K state: D+/D- = high/low */
value |= UTMIP_HIGHZ_A;
value |= UTMIP_AN_A;
value |= UTMIP_AP_B | UTMIP_AP_C | UTMIP_AP_D;
break;
default:
value |= UTMIP_HIGHZ_A | UTMIP_HIGHZ_B | UTMIP_HIGHZ_C | UTMIP_HIGHZ_D;
break;
}
padctl_pmc_writel(priv, value, PMC_UTMIP_SLEEPWALK_PX(port));
/* power up the line state detectors of the pad */
value = padctl_pmc_readl(priv, PMC_USB_AO);
value &= ~(USBOP_VAL_PD(port) | USBON_VAL_PD(port));
padctl_pmc_writel(priv, value, PMC_USB_AO);
usleep_range(50, 100);
/* switch the electric control of the USB2.0 pad to PMC */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value |= UTMIP_FSLS_USE_PMC(port) | UTMIP_PCTRL_USE_PMC(port) | UTMIP_TCTRL_USE_PMC(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG1);
value |= UTMIP_RPD_CTRL_USE_PMC_PX(port) | UTMIP_RPU_SWITC_LOW_USE_PMC_PX(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG1);
/* set the wake signaling trigger events */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value &= ~UTMIP_WAKE_VAL(port, ~0);
value |= UTMIP_WAKE_VAL_ANY(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
/* enable the wake detection */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value |= UTMIP_MASTER_ENABLE(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_LINE_WAKEUP);
value |= UTMIP_LINE_WAKEUP_EN(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_LINE_WAKEUP);
return 0;
}
static int tegra210_pmc_utmi_disable_phy_sleepwalk(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
struct tegra210_xusb_padctl *priv = to_tegra210_xusb_padctl(padctl);
unsigned int port = lane->index;
u32 value;
if (!priv->regmap)
return -EOPNOTSUPP;
/* disable the wake detection */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value &= ~UTMIP_MASTER_ENABLE(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_LINE_WAKEUP);
value &= ~UTMIP_LINE_WAKEUP_EN(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_LINE_WAKEUP);
/* switch the electric control of the USB2.0 pad to XUSB or USB2 */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value &= ~(UTMIP_FSLS_USE_PMC(port) | UTMIP_PCTRL_USE_PMC(port) |
UTMIP_TCTRL_USE_PMC(port));
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG1);
value &= ~(UTMIP_RPD_CTRL_USE_PMC_PX(port) | UTMIP_RPU_SWITC_LOW_USE_PMC_PX(port));
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG1);
/* disable wake event triggers of sleepwalk logic */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
value &= ~UTMIP_WAKE_VAL(port, ~0);
value |= UTMIP_WAKE_VAL_NONE(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_SLEEP_CFG(port));
/* power down the line state detectors of the port */
value = padctl_pmc_readl(priv, PMC_USB_AO);
value |= (USBOP_VAL_PD(port) | USBON_VAL_PD(port));
padctl_pmc_writel(priv, value, PMC_USB_AO);
/* clear alarm of the sleepwalk logic */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_TRIGGERS);
value |= UTMIP_CLR_WAKE_ALARM(port);
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_TRIGGERS);
return 0;
}
static int tegra210_pmc_hsic_enable_phy_sleepwalk(struct tegra_xusb_lane *lane,
enum usb_device_speed speed)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
struct tegra210_xusb_padctl *priv = to_tegra210_xusb_padctl(padctl);
u32 value;
if (!priv->regmap)
return -EOPNOTSUPP;
/* ensure sleepwalk logic is disabled */
value = padctl_pmc_readl(priv, PMC_UHSIC_SLEEP_CFG);
value &= ~UHSIC_MASTER_ENABLE;
padctl_pmc_writel(priv, value, PMC_UHSIC_SLEEP_CFG);
/* ensure sleepwalk logics are in low power mode */
value = padctl_pmc_readl(priv, PMC_UTMIP_MASTER_CONFIG);
value |= UHSIC_PWR;
padctl_pmc_writel(priv, value, PMC_UTMIP_MASTER_CONFIG);
/* set debounce time */
value = padctl_pmc_readl(priv, PMC_USB_DEBOUNCE_DEL);
value &= ~UHSIC_LINE_DEB_CNT(~0);
value |= UHSIC_LINE_DEB_CNT(0x1);
padctl_pmc_writel(priv, value, PMC_USB_DEBOUNCE_DEL);
/* ensure fake events of sleepwalk logic are desiabled */
value = padctl_pmc_readl(priv, PMC_UHSIC_FAKE);
value &= ~(UHSIC_FAKE_STROBE_VAL | UHSIC_FAKE_DATA_VAL |
UHSIC_FAKE_STROBE_EN | UHSIC_FAKE_DATA_EN);
padctl_pmc_writel(priv, value, PMC_UHSIC_FAKE);
/* ensure wake events of sleepwalk logic are not latched */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_LINE_WAKEUP);
value &= ~UHSIC_LINE_WAKEUP_EN;
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_LINE_WAKEUP);
/* disable wake event triggers of sleepwalk logic */
value = padctl_pmc_readl(priv, PMC_UHSIC_SLEEP_CFG);
value &= ~UHSIC_WAKE_VAL(~0);
value |= UHSIC_WAKE_VAL_NONE;
padctl_pmc_writel(priv, value, PMC_UHSIC_SLEEP_CFG);
/* power down the line state detectors of the port */
value = padctl_pmc_readl(priv, PMC_USB_AO);
value |= STROBE_VAL_PD | DATA0_VAL_PD | DATA1_VAL_PD;
padctl_pmc_writel(priv, value, PMC_USB_AO);
/* save state, HSIC always comes up as HS */
value = padctl_pmc_readl(priv, PMC_UHSIC_SAVED_STATE);
value &= ~UHSIC_MODE(~0);
value |= UHSIC_HS;
padctl_pmc_writel(priv, value, PMC_UHSIC_SAVED_STATE);
/* enable the trigger of the sleepwalk logic */
value = padctl_pmc_readl(priv, PMC_UHSIC_SLEEPWALK_CFG);
value |= UHSIC_WAKE_WALK_EN | UHSIC_LINEVAL_WALK_EN;
padctl_pmc_writel(priv, value, PMC_UHSIC_SLEEPWALK_CFG);
/*
* Reset the walk pointer and clear the alarm of the sleepwalk logic,
* as well as capture the configuration of the USB2.0 port.
*/
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_TRIGGERS);
value |= UHSIC_CLR_WALK_PTR | UHSIC_CLR_WAKE_ALARM;
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_TRIGGERS);
/*
* Set up the pull-ups and pull-downs of the signals during the four
* stages of sleepwalk. Maintain a HSIC IDLE and keep driving HSIC
* RESUME upon remote wake.
*/
value = padctl_pmc_readl(priv, PMC_UHSIC_SLEEPWALK_P0);
value = UHSIC_DATA0_RPD_A | UHSIC_DATA0_RPU_B | UHSIC_DATA0_RPU_C | UHSIC_DATA0_RPU_D |
UHSIC_STROBE_RPU_A | UHSIC_STROBE_RPD_B | UHSIC_STROBE_RPD_C | UHSIC_STROBE_RPD_D;
padctl_pmc_writel(priv, value, PMC_UHSIC_SLEEPWALK_P0);
/* power up the line state detectors of the port */
value = padctl_pmc_readl(priv, PMC_USB_AO);
value &= ~(STROBE_VAL_PD | DATA0_VAL_PD | DATA1_VAL_PD);
padctl_pmc_writel(priv, value, PMC_USB_AO);
usleep_range(50, 100);
/* set the wake signaling trigger events */
value = padctl_pmc_readl(priv, PMC_UHSIC_SLEEP_CFG);
value &= ~UHSIC_WAKE_VAL(~0);
value |= UHSIC_WAKE_VAL_SD10;
padctl_pmc_writel(priv, value, PMC_UHSIC_SLEEP_CFG);
/* enable the wake detection */
value = padctl_pmc_readl(priv, PMC_UHSIC_SLEEP_CFG);
value |= UHSIC_MASTER_ENABLE;
padctl_pmc_writel(priv, value, PMC_UHSIC_SLEEP_CFG);
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_LINE_WAKEUP);
value |= UHSIC_LINE_WAKEUP_EN;
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_LINE_WAKEUP);
return 0;
}
static int tegra210_pmc_hsic_disable_phy_sleepwalk(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
struct tegra210_xusb_padctl *priv = to_tegra210_xusb_padctl(padctl);
u32 value;
if (!priv->regmap)
return -EOPNOTSUPP;
/* disable the wake detection */
value = padctl_pmc_readl(priv, PMC_UHSIC_SLEEP_CFG);
value &= ~UHSIC_MASTER_ENABLE;
padctl_pmc_writel(priv, value, PMC_UHSIC_SLEEP_CFG);
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_LINE_WAKEUP);
value &= ~UHSIC_LINE_WAKEUP_EN;
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_LINE_WAKEUP);
/* disable wake event triggers of sleepwalk logic */
value = padctl_pmc_readl(priv, PMC_UHSIC_SLEEP_CFG);
value &= ~UHSIC_WAKE_VAL(~0);
value |= UHSIC_WAKE_VAL_NONE;
padctl_pmc_writel(priv, value, PMC_UHSIC_SLEEP_CFG);
/* power down the line state detectors of the port */
value = padctl_pmc_readl(priv, PMC_USB_AO);
value |= STROBE_VAL_PD | DATA0_VAL_PD | DATA1_VAL_PD;
padctl_pmc_writel(priv, value, PMC_USB_AO);
/* clear alarm of the sleepwalk logic */
value = padctl_pmc_readl(priv, PMC_UTMIP_UHSIC_TRIGGERS);
value |= UHSIC_CLR_WAKE_ALARM;
padctl_pmc_writel(priv, value, PMC_UTMIP_UHSIC_TRIGGERS);
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,
.enable_phy_sleepwalk = tegra210_pmc_utmi_enable_phy_sleepwalk,
.disable_phy_sleepwalk = tegra210_pmc_utmi_disable_phy_sleepwalk,
.enable_phy_wake = tegra210_utmi_enable_phy_wake,
.disable_phy_wake = tegra210_utmi_disable_phy_wake,
.remote_wake_detected = tegra210_utmi_phy_remote_wake_detected,
};
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;
unsigned int index = lane->index;
struct tegra_xusb_usb2_port *port;
int err;
u32 value;
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;
}
if (port->supply && port->mode == USB_DR_MODE_HOST) {
err = regulator_enable(port->supply);
if (err)
return err;
}
mutex_lock(&padctl->lock);
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);
mutex_unlock(&padctl->lock);
return 0;
}
static int tegra210_usb2_phy_exit(struct phy *phy)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
struct tegra_xusb_usb2_port *port;
int err;
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;
}
if (port->supply && port->mode == USB_DR_MODE_HOST) {
err = regulator_disable(port->supply);
if (err)
return err;
}
return 0;
}
static int tegra210_xusb_padctl_vbus_override(struct tegra_xusb_padctl *padctl,
bool status)
{
u32 value;
dev_dbg(padctl->dev, "%s vbus override\n", status ? "set" : "clear");
value = padctl_readl(padctl, XUSB_PADCTL_USB2_VBUS_ID);
if (status) {
value |= XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_VBUS_ON;
value &= ~(XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_MASK <<
XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_SHIFT);
value |= XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_FLOATING <<
XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_SHIFT;
} else {
value &= ~XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_VBUS_ON;
}
padctl_writel(padctl, value, XUSB_PADCTL_USB2_VBUS_ID);
return 0;
}
static int tegra210_xusb_padctl_id_override(struct tegra_xusb_padctl *padctl,
bool status)
{
u32 value;
dev_dbg(padctl->dev, "%s id override\n", status ? "set" : "clear");
value = padctl_readl(padctl, XUSB_PADCTL_USB2_VBUS_ID);
if (status) {
if (value & XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_VBUS_ON) {
value &= ~XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_VBUS_ON;
padctl_writel(padctl, value, XUSB_PADCTL_USB2_VBUS_ID);
usleep_range(1000, 2000);
value = padctl_readl(padctl, XUSB_PADCTL_USB2_VBUS_ID);
}
value &= ~(XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_MASK <<
XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_SHIFT);
value |= XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_GROUNDED <<
XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_SHIFT;
} else {
value &= ~(XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_MASK <<
XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_SHIFT);
value |= XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_FLOATING <<
XUSB_PADCTL_USB2_VBUS_ID_OVERRIDE_SHIFT;
}
padctl_writel(padctl, value, XUSB_PADCTL_USB2_VBUS_ID);
return 0;
}
static int tegra210_usb2_phy_set_mode(struct phy *phy, enum phy_mode mode,
int submode)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
struct tegra_xusb_usb2_port *port = tegra_xusb_find_usb2_port(padctl,
lane->index);
int err = 0;
mutex_lock(&padctl->lock);
dev_dbg(&port->base.dev, "%s: mode %d", __func__, mode);
if (mode == PHY_MODE_USB_OTG) {
if (submode == USB_ROLE_HOST) {
tegra210_xusb_padctl_id_override(padctl, true);
err = regulator_enable(port->supply);
} else if (submode == USB_ROLE_DEVICE) {
tegra210_xusb_padctl_vbus_override(padctl, true);
} else if (submode == USB_ROLE_NONE) {
/*
* When port is peripheral only or role transitions to
* USB_ROLE_NONE from USB_ROLE_DEVICE, regulator is not
* be enabled.
*/
if (regulator_is_enabled(port->supply))
regulator_disable(port->supply);
tegra210_xusb_padctl_id_override(padctl, false);
tegra210_xusb_padctl_vbus_override(padctl, false);
}
}
mutex_unlock(&padctl->lock);
return err;
}
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);
mutex_lock(&padctl->lock);
if (port->usb3_port_fake != -1) {
value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP);
value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(
port->usb3_port_fake);
value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(
port->usb3_port_fake, index);
padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1);
value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN(
port->usb3_port_fake);
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(
port->usb3_port_fake);
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(
port->usb3_port_fake);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1);
}
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);
if (port->mode == USB_DR_MODE_UNKNOWN)
value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_DISABLED(index);
else if (port->mode == USB_DR_MODE_PERIPHERAL)
value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_DEVICE(index);
else if (port->mode == USB_DR_MODE_HOST)
value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(index);
else if (port->mode == USB_DR_MODE_OTG)
value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_OTG(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);
if (port->mode == USB_DR_MODE_HOST)
value |= XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18;
else
value |=
XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_VAL <<
XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT;
padctl_writel(padctl, value,
XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(index));
if (pad->enable > 0) {
pad->enable++;
mutex_unlock(&padctl->lock);
return 0;
}
err = clk_prepare_enable(pad->clk);
if (err)
goto out;
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;
out:
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 (port->usb3_port_fake != -1) {
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1);
value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(
port->usb3_port_fake);
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(
port->usb3_port_fake);
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(
port->usb3_port_fake);
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1);
value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP);
value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(port->usb3_port_fake,
XUSB_PADCTL_SS_PORT_MAP_PORT_DISABLED);
padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP);
}
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:
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,
.set_mode = tegra210_usb2_phy_set_mode,
.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,
.enable_phy_sleepwalk = tegra210_pmc_hsic_enable_phy_sleepwalk,
.disable_phy_sleepwalk = tegra210_pmc_hsic_disable_phy_sleepwalk,
.enable_phy_wake = tegra210_hsic_enable_phy_wake,
.disable_phy_wake = tegra210_hsic_disable_phy_wake,
.remote_wake_detected = tegra210_hsic_phy_remote_wake_detected,
};
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 0;
}
static int tegra210_hsic_phy_exit(struct phy *phy)
{
return 0;
}
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;
unsigned int index = lane->index;
u32 value;
int err;
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 void tegra210_uphy_lane_iddq_enable(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
u32 value;
value = padctl_readl(padctl, lane->soc->regs.misc_ctl2);
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_IDDQ_OVRD;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_IDDQ_OVRD;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_PWR_OVRD;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_PWR_OVRD;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_IDDQ;
value &= ~XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_SLEEP_MASK;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_SLEEP_VAL;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_IDDQ;
value &= ~XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_SLEEP_MASK;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_SLEEP_VAL;
padctl_writel(padctl, value, lane->soc->regs.misc_ctl2);
}
static void tegra210_uphy_lane_iddq_disable(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
u32 value;
value = padctl_readl(padctl, lane->soc->regs.misc_ctl2);
value &= ~XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_IDDQ_OVRD;
value &= ~XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_IDDQ_OVRD;
value &= ~XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_PWR_OVRD;
value &= ~XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_PWR_OVRD;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_IDDQ;
value &= ~XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_SLEEP_MASK;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_TX_SLEEP_VAL;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_IDDQ;
value &= ~XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_SLEEP_MASK;
value |= XUSB_PADCTL_UPHY_MISC_PAD_CTL2_RX_SLEEP_VAL;
padctl_writel(padctl, value, lane->soc->regs.misc_ctl2);
}
#define TEGRA210_UPHY_LANE(_name, _offset, _shift, _mask, _type, _misc) \
{ \
.name = _name, \
.offset = _offset, \
.shift = _shift, \
.mask = _mask, \
.num_funcs = ARRAY_SIZE(tegra210_##_type##_functions), \
.funcs = tegra210_##_type##_functions, \
.regs.misc_ctl2 = _misc, \
}
static const char *tegra210_pcie_functions[] = {
"pcie-x1",
"usb3-ss",
"sata",
"pcie-x4",
};
static const struct tegra_xusb_lane_soc tegra210_pcie_lanes[] = {
TEGRA210_UPHY_LANE("pcie-0", 0x028, 12, 0x3, pcie, XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL2(0)),
TEGRA210_UPHY_LANE("pcie-1", 0x028, 14, 0x3, pcie, XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL2(1)),
TEGRA210_UPHY_LANE("pcie-2", 0x028, 16, 0x3, pcie, XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL2(2)),
TEGRA210_UPHY_LANE("pcie-3", 0x028, 18, 0x3, pcie, XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL2(3)),
TEGRA210_UPHY_LANE("pcie-4", 0x028, 20, 0x3, pcie, XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL2(4)),
TEGRA210_UPHY_LANE("pcie-5", 0x028, 22, 0x3, pcie, XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL2(5)),
TEGRA210_UPHY_LANE("pcie-6", 0x028, 24, 0x3, pcie, XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL2(6)),
};
static struct tegra_xusb_usb3_port *
tegra210_lane_to_usb3_port(struct tegra_xusb_lane *lane)
{
int port;
if (!lane || !lane->pad || !lane->pad->padctl)
return NULL;
port = tegra210_usb3_lane_map(lane);
if (port < 0)
return NULL;
return tegra_xusb_find_usb3_port(lane->pad->padctl, port);
}
static int tegra210_usb3_phy_power_on(struct phy *phy)
{
struct device *dev = &phy->dev;
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
struct tegra_xusb_usb3_port *usb3 = tegra210_lane_to_usb3_port(lane);
unsigned int index;
u32 value;
if (!usb3) {
dev_err(dev, "no USB3 port found for lane %u\n", lane->index);
return -ENODEV;
}
index = usb3->base.index;
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);
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));
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 int tegra210_usb3_phy_power_off(struct phy *phy)
{
struct device *dev = &phy->dev;
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
struct tegra_xusb_usb3_port *usb3 = tegra210_lane_to_usb3_port(lane);
unsigned int index;
u32 value;
if (!usb3) {
dev_err(dev, "no USB3 port found for lane %u\n", lane->index);
return -ENODEV;
}
index = usb3->base.index;
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);
return 0;
}
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,
.iddq_enable = tegra210_uphy_lane_iddq_enable,
.iddq_disable = tegra210_uphy_lane_iddq_disable,
.enable_phy_sleepwalk = tegra210_usb3_enable_phy_sleepwalk,
.disable_phy_sleepwalk = tegra210_usb3_disable_phy_sleepwalk,
.enable_phy_wake = tegra210_usb3_enable_phy_wake,
.disable_phy_wake = tegra210_usb3_disable_phy_wake,
.remote_wake_detected = tegra210_usb3_phy_remote_wake_detected,
};
static int tegra210_pcie_phy_init(struct phy *phy)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
mutex_lock(&padctl->lock);
tegra210_uphy_init(padctl);
mutex_unlock(&padctl->lock);
return 0;
}
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;
int err = 0;
mutex_lock(&padctl->lock);
if (tegra_xusb_lane_check(lane, "usb3-ss"))
err = tegra210_usb3_phy_power_on(phy);
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;
int err = 0;
mutex_lock(&padctl->lock);
if (tegra_xusb_lane_check(lane, "usb3-ss"))
err = tegra210_usb3_phy_power_off(phy);
mutex_unlock(&padctl->lock);
return err;
}
static const struct phy_ops tegra210_pcie_phy_ops = {
.init = tegra210_pcie_phy_init,
.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_UPHY_LANE("sata-0", 0x028, 30, 0x3, pcie, XUSB_PADCTL_UPHY_MISC_PAD_S0_CTL2),
};
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,
.iddq_enable = tegra210_uphy_lane_iddq_enable,
.iddq_disable = tegra210_uphy_lane_iddq_disable,
.enable_phy_sleepwalk = tegra210_usb3_enable_phy_sleepwalk,
.disable_phy_sleepwalk = tegra210_usb3_disable_phy_sleepwalk,
.enable_phy_wake = tegra210_usb3_enable_phy_wake,
.disable_phy_wake = tegra210_usb3_disable_phy_wake,
.remote_wake_detected = tegra210_usb3_phy_remote_wake_detected,
};
static int tegra210_sata_phy_init(struct phy *phy)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
struct tegra_xusb_padctl *padctl = lane->pad->padctl;
mutex_lock(&padctl->lock);
tegra210_uphy_init(padctl);
mutex_unlock(&padctl->lock);
return 0;
}
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;
int err = 0;
mutex_lock(&padctl->lock);
if (tegra_xusb_lane_check(lane, "usb3-ss"))
err = tegra210_usb3_phy_power_on(phy);
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;
int err = 0;
mutex_lock(&padctl->lock);
if (tegra_xusb_lane_check(lane, "usb3-ss"))
err = tegra210_usb3_phy_power_off(phy);
mutex_unlock(&padctl->lock);
return err;
}
static const struct phy_ops tegra210_sata_phy_ops = {
.init = tegra210_sata_phy_init,
.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 = {
.release = tegra_xusb_usb2_port_release,
.remove = tegra_xusb_usb2_port_remove,
.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 = {
.release = tegra_xusb_hsic_port_release,
.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)
{
return 0;
}
static void tegra210_usb3_port_disable(struct tegra_xusb_port *port)
{
}
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 = {
.release = tegra_xusb_usb3_port_release,
.remove = tegra_xusb_usb3_port_remove,
.enable = tegra210_usb3_port_enable,
.disable = tegra210_usb3_port_disable,
.map = tegra210_usb3_port_map,
};
static int tegra210_utmi_port_reset(struct phy *phy)
{
struct tegra_xusb_padctl *padctl;
struct tegra_xusb_lane *lane;
u32 value;
lane = phy_get_drvdata(phy);
padctl = lane->pad->padctl;
value = padctl_readl(padctl,
XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL0(lane->index));
if ((value & XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL0_ZIP) ||
(value & XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL0_ZIN)) {
tegra210_xusb_padctl_vbus_override(padctl, false);
tegra210_xusb_padctl_vbus_override(padctl, true);
return 1;
}
return 0;
}
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;
struct platform_device *pdev;
struct device_node *np;
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);
np = of_parse_phandle(dev->of_node, "nvidia,pmc", 0);
if (!np) {
dev_warn(dev, "nvidia,pmc property is missing\n");
goto out;
}
pdev = of_find_device_by_node(np);
if (!pdev) {
dev_warn(dev, "PMC device is not available\n");
goto out;
}
if (!platform_get_drvdata(pdev))
return ERR_PTR(-EPROBE_DEFER);
padctl->regmap = dev_get_regmap(&pdev->dev, "usb_sleepwalk");
if (!padctl->regmap)
dev_info(dev, "failed to find PMC regmap\n");
out:
return &padctl->base;
}
static void tegra210_xusb_padctl_remove(struct tegra_xusb_padctl *padctl)
{
}
static void tegra210_xusb_padctl_save(struct tegra_xusb_padctl *padctl)
{
struct tegra210_xusb_padctl *priv = to_tegra210_xusb_padctl(padctl);
priv->context.usb2_pad_mux =
padctl_readl(padctl, XUSB_PADCTL_USB2_PAD_MUX);
priv->context.usb2_port_cap =
padctl_readl(padctl, XUSB_PADCTL_USB2_PORT_CAP);
priv->context.ss_port_map =
padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP);
priv->context.usb3_pad_mux =
padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
}
static void tegra210_xusb_padctl_restore(struct tegra_xusb_padctl *padctl)
{
struct tegra210_xusb_padctl *priv = to_tegra210_xusb_padctl(padctl);
struct tegra_xusb_lane *lane;
padctl_writel(padctl, priv->context.usb2_pad_mux,
XUSB_PADCTL_USB2_PAD_MUX);
padctl_writel(padctl, priv->context.usb2_port_cap,
XUSB_PADCTL_USB2_PORT_CAP);
padctl_writel(padctl, priv->context.ss_port_map,
XUSB_PADCTL_SS_PORT_MAP);
list_for_each_entry(lane, &padctl->lanes, list) {
if (lane->pad->ops->iddq_enable)
tegra210_uphy_lane_iddq_enable(lane);
}
padctl_writel(padctl, priv->context.usb3_pad_mux,
XUSB_PADCTL_USB3_PAD_MUX);
list_for_each_entry(lane, &padctl->lanes, list) {
if (lane->pad->ops->iddq_disable)
tegra210_uphy_lane_iddq_disable(lane);
}
}
static int tegra210_xusb_padctl_suspend_noirq(struct tegra_xusb_padctl *padctl)
{
mutex_lock(&padctl->lock);
tegra210_uphy_deinit(padctl);
tegra210_xusb_padctl_save(padctl);
mutex_unlock(&padctl->lock);
return 0;
}
static int tegra210_xusb_padctl_resume_noirq(struct tegra_xusb_padctl *padctl)
{
mutex_lock(&padctl->lock);
tegra210_xusb_padctl_restore(padctl);
tegra210_uphy_init(padctl);
mutex_unlock(&padctl->lock);
return 0;
}
static const struct tegra_xusb_padctl_ops tegra210_xusb_padctl_ops = {
.probe = tegra210_xusb_padctl_probe,
.remove = tegra210_xusb_padctl_remove,
.suspend_noirq = tegra210_xusb_padctl_suspend_noirq,
.resume_noirq = tegra210_xusb_padctl_resume_noirq,
.usb3_set_lfps_detect = tegra210_usb3_set_lfps_detect,
.hsic_set_idle = tegra210_hsic_set_idle,
.vbus_override = tegra210_xusb_padctl_vbus_override,
.utmi_port_reset = tegra210_utmi_port_reset,
};
static const char * const tegra210_xusb_padctl_supply_names[] = {
"avdd-pll-utmip",
"avdd-pll-uerefe",
"dvdd-pex-pll",
"hvdd-pex-pll-e",
};
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,
.supply_names = tegra210_xusb_padctl_supply_names,
.num_supplies = ARRAY_SIZE(tegra210_xusb_padctl_supply_names),
.need_fake_usb3_port = true,
};
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");
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