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xusb-tegra124.c
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/*
* Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/mailbox_client.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/reset.h>
#include <linux/slab.h>
#include <soc/tegra/fuse.h>
#include "xusb.h"
#define FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(x) ((x) ? 15 : 0)
#define FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK 0x3f
#define FUSE_SKU_CALIB_HS_IREF_CAP_SHIFT 13
#define FUSE_SKU_CALIB_HS_IREF_CAP_MASK 0x3
#define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_SHIFT 11
#define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_MASK 0x3
#define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT 7
#define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK 0xf
#define XUSB_PADCTL_USB2_PORT_CAP 0x008
#define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(x) ((x) * 4)
#define XUSB_PADCTL_USB2_PORT_CAP_PORT_CAP_MASK 0x3
#define XUSB_PADCTL_USB2_PORT_CAP_DISABLED 0x0
#define XUSB_PADCTL_USB2_PORT_CAP_HOST 0x1
#define XUSB_PADCTL_USB2_PORT_CAP_DEVICE 0x2
#define XUSB_PADCTL_USB2_PORT_CAP_OTG 0x3
#define XUSB_PADCTL_SS_PORT_MAP 0x014
#define XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(x) (1 << (((x) * 4) + 3))
#define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_SHIFT(x) ((x) * 4)
#define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(x) (0x7 << ((x) * 4))
#define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(x, v) (((v) & 0x7) << ((x) * 4))
#define XUSB_PADCTL_SS_PORT_MAP_PORT_MAP_MASK 0x7
#define XUSB_PADCTL_ELPG_PROGRAM 0x01c
#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN (1 << 26)
#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 25)
#define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN (1 << 24)
#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(x) (1 << (18 + (x) * 4))
#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(x) \
(1 << (17 + (x) * 4))
#define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(x) (1 << (16 + (x) * 4))
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1 0x040
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET (1 << 19)
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_REFCLK_SEL_MASK (0xf << 12)
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST (1 << 1)
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2 0x044
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_REFCLKBUF_EN (1 << 6)
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN (1 << 5)
#define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL (1 << 4)
#define XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(x) (0x058 + (x) * 4)
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT 24
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_MASK 0xff
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_VAL 0x24
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT 16
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK 0x3f
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT 8
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK 0x3f
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT 8
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_MASK 0xffff
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_VAL 0xf070
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT 4
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_MASK 0xf
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_VAL 0xf
#define XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(x) (0x068 + (x) * 4)
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT 24
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK 0x1f
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT 16
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK 0x7f
#define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_VAL 0x002008ee
#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL2(x) ((x) < 2 ? 0x078 + (x) * 4 : \
0x0f8 + (x) * 4)
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT 28
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_MASK 0x3
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_VAL 0x1
#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL5(x) ((x) < 2 ? 0x090 + (x) * 4 : \
0x11c + (x) * 4)
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL5_RX_QEYE_EN (1 << 8)
#define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(x) ((x) < 2 ? 0x098 + (x) * 4 : \
0x128 + (x) * 4)
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT 24
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK 0x3f
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK 0x1f
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK 0x7f
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT 16
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK 0xff
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z 0x21
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP 0x32
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP 0x33
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z 0x48
#define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z 0xa1
#define XUSB_PADCTL_USB2_OTG_PADX_CTL0(x) (0x0a0 + (x) * 4)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI (1 << 21)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 (1 << 20)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD (1 << 19)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT 14
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK 0x3
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_VAL(x) ((x) ? 0x0 : 0x3)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT 6
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_MASK 0x3f
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_VAL 0x0e
#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) (0x0ac + (x) * 4)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT 9
#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_MASK 0x3
#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT 3
#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK 0x7
#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR (1 << 2)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP (1 << 1)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP (1 << 0)
#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0 0x0b8
#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD (1 << 12)
#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT 2
#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK 0x7
#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL 0x5
#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT 0
#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK 0x3
#define XUSB_PADCTL_HSIC_PADX_CTL0(x) (0x0c0 + (x) * 4)
#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT 12
#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK 0x7
#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT 8
#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK 0x7
#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT 4
#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK 0x7
#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT 0
#define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK 0x7
#define XUSB_PADCTL_HSIC_PADX_CTL1(x) (0x0c8 + (x) * 4)
#define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE (1 << 10)
#define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA (1 << 9)
#define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE (1 << 8)
#define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA (1 << 7)
#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI (1 << 5)
#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX (1 << 4)
#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX (1 << 3)
#define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX (1 << 2)
#define XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN (1 << 0)
#define XUSB_PADCTL_HSIC_PADX_CTL2(x) (0x0d0 + (x) * 4)
#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT 4
#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK 0x7
#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT 0
#define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK 0x7
#define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL 0x0e0
#define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL_STRB_TRIM_MASK 0x1f
#define XUSB_PADCTL_USB3_PAD_MUX 0x134
#define XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(x) (1 << (1 + (x)))
#define XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(x) (1 << (6 + (x)))
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1 0x138
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET (1 << 27)
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE (1 << 24)
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_SHIFT 20
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_MASK 0x3
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD (1 << 3)
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST (1 << 1)
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ (1 << 0)
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2 0x13c
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_SHIFT 20
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_MASK 0xf
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_SHIFT 16
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_MASK 0xf
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TCLKOUT_EN (1 << 12)
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TXCLKREF_SEL (1 << 4)
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_SHIFT 0
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_MASK 0x7
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL3 0x140
#define XUSB_PADCTL_IOPHY_PLL_S0_CTL3_RCAL_BYPASS (1 << 7)
#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1 0x148
#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD (1 << 1)
#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ (1 << 0)
#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL2 0x14c
#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL5 0x158
#define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6 0x15c
struct tegra124_xusb_fuse_calibration {
u32 hs_curr_level[3];
u32 hs_iref_cap;
u32 hs_term_range_adj;
u32 hs_squelch_level;
};
struct tegra124_xusb_padctl {
struct tegra_xusb_padctl base;
struct tegra124_xusb_fuse_calibration fuse;
};
static inline struct tegra124_xusb_padctl *
to_tegra124_xusb_padctl(struct tegra_xusb_padctl *padctl)
{
return container_of(padctl, struct tegra124_xusb_padctl, base);
}
static int tegra124_xusb_padctl_enable(struct tegra_xusb_padctl *padctl)
{
u32 value;
mutex_lock(&padctl->lock);
if (padctl->enable++ > 0)
goto out;
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
usleep_range(100, 200);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
usleep_range(100, 200);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
out:
mutex_unlock(&padctl->lock);
return 0;
}
static int tegra124_xusb_padctl_disable(struct tegra_xusb_padctl *padctl)
{
u32 value;
mutex_lock(&padctl->lock);
if (WARN_ON(padctl->enable == 0))
goto out;
if (--padctl->enable > 0)
goto out;
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
usleep_range(100, 200);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
usleep_range(100, 200);
value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
out:
mutex_unlock(&padctl->lock);
return 0;
}
static int tegra124_usb3_save_context(struct tegra_xusb_padctl *padctl,
unsigned int index)
{
struct tegra_xusb_usb3_port *port;
struct tegra_xusb_lane *lane;
u32 value, offset;
port = tegra_xusb_find_usb3_port(padctl, index);
if (!port)
return -ENODEV;
port->context_saved = true;
lane = port->base.lane;
if (lane->pad == padctl->pcie)
offset = XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(lane->index);
else
offset = XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6;
value = padctl_readl(padctl, offset);
value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
padctl_writel(padctl, value, offset);
value = padctl_readl(padctl, offset) >>
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
port->tap1 = value & XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK;
value = padctl_readl(padctl, offset);
value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
padctl_writel(padctl, value, offset);
value = padctl_readl(padctl, offset) >>
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
port->amp = value & XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK;
value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(index));
value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK <<
XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
(XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK <<
XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT));
value |= (port->tap1 <<
XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
(port->amp <<
XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT);
padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(index));
value = padctl_readl(padctl, offset);
value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
padctl_writel(padctl, value, offset);
value = padctl_readl(padctl, offset);
value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
padctl_writel(padctl, value, offset);
value = padctl_readl(padctl, offset) >>
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
port->ctle_g = value &
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK;
value = padctl_readl(padctl, offset);
value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z <<
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
padctl_writel(padctl, value, offset);
value = padctl_readl(padctl, offset) >>
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
port->ctle_z = value &
XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK;
value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK <<
XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
(XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK <<
XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT));
value |= (port->ctle_g <<
XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
(port->ctle_z <<
XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT);
padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
return 0;
}
static int tegra124_hsic_set_idle(struct tegra_xusb_padctl *padctl,
unsigned int index, bool idle)
{
u32 value;
value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index));
if (idle)
value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE;
else
value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE);
padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
return 0;
}
#define TEGRA124_LANE(_name, _offset, _shift, _mask, _type) \
{ \
.name = _name, \
.offset = _offset, \
.shift = _shift, \
.mask = _mask, \
.num_funcs = ARRAY_SIZE(tegra124_##_type##_functions), \
.funcs = tegra124_##_type##_functions, \
}
static const char * const tegra124_usb2_functions[] = {
"snps",
"xusb",
"uart",
};
static const struct tegra_xusb_lane_soc tegra124_usb2_lanes[] = {
TEGRA124_LANE("usb2-0", 0x004, 0, 0x3, usb2),
TEGRA124_LANE("usb2-1", 0x004, 2, 0x3, usb2),
TEGRA124_LANE("usb2-2", 0x004, 4, 0x3, usb2),
};
static struct tegra_xusb_lane *
tegra124_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 tegra124_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 tegra124_usb2_lane_ops = {
.probe = tegra124_usb2_lane_probe,
.remove = tegra124_usb2_lane_remove,
};
static int tegra124_usb2_phy_init(struct phy *phy)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
return tegra124_xusb_padctl_enable(lane->pad->padctl);
}
static int tegra124_usb2_phy_exit(struct phy *phy)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
return tegra124_xusb_padctl_disable(lane->pad->padctl);
}
static int tegra124_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 tegra124_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_tegra124_xusb_padctl(padctl);
value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK <<
XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) |
(XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK <<
XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT));
value |= (priv->fuse.hs_squelch_level <<
XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) |
(XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL <<
XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_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_PORT_CAP_MASK <<
XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(index));
value |= XUSB_PADCTL_USB2_PORT_CAP_HOST <<
XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(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_HS_SLEW_MASK <<
XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT) |
(XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK <<
XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_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;
value |= XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_VAL <<
XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT;
value |= XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_VAL(index) <<
XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_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_HS_IREF_CAP_MASK <<
XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT) |
XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR |
XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP |
XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP);
value |= (priv->fuse.hs_term_range_adj <<
XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) |
(priv->fuse.hs_iref_cap <<
XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT);
padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index));
err = regulator_enable(port->supply);
if (err)
return err;
mutex_lock(&pad->lock);
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(&pad->lock);
return 0;
}
static int tegra124_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(&pad->lock);
if (WARN_ON(pad->enable == 0))
goto out;
if (--pad->enable > 0)
goto out;
value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
value |= XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD;
padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
out:
regulator_disable(port->supply);
mutex_unlock(&pad->lock);
return 0;
}
static const struct phy_ops tegra124_usb2_phy_ops = {
.init = tegra124_usb2_phy_init,
.exit = tegra124_usb2_phy_exit,
.power_on = tegra124_usb2_phy_power_on,
.power_off = tegra124_usb2_phy_power_off,
.owner = THIS_MODULE,
};
static struct tegra_xusb_pad *
tegra124_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);
mutex_init(&usb2->lock);
pad = &usb2->base;
pad->ops = &tegra124_usb2_lane_ops;
pad->soc = soc;
err = tegra_xusb_pad_init(pad, padctl, np);
if (err < 0) {
kfree(usb2);
goto out;
}
err = tegra_xusb_pad_register(pad, &tegra124_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 tegra124_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 tegra124_usb2_ops = {
.probe = tegra124_usb2_pad_probe,
.remove = tegra124_usb2_pad_remove,
};
static const struct tegra_xusb_pad_soc tegra124_usb2_pad = {
.name = "usb2",
.num_lanes = ARRAY_SIZE(tegra124_usb2_lanes),
.lanes = tegra124_usb2_lanes,
.ops = &tegra124_usb2_ops,
};
static const char * const tegra124_ulpi_functions[] = {
"snps",
"xusb",
};
static const struct tegra_xusb_lane_soc tegra124_ulpi_lanes[] = {
TEGRA124_LANE("ulpi-0", 0x004, 12, 0x1, ulpi),
};
static struct tegra_xusb_lane *
tegra124_ulpi_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
unsigned int index)
{
struct tegra_xusb_ulpi_lane *ulpi;
int err;
ulpi = kzalloc(sizeof(*ulpi), GFP_KERNEL);
if (!ulpi)
return ERR_PTR(-ENOMEM);
INIT_LIST_HEAD(&ulpi->base.list);
ulpi->base.soc = &pad->soc->lanes[index];
ulpi->base.index = index;
ulpi->base.pad = pad;
ulpi->base.np = np;
err = tegra_xusb_lane_parse_dt(&ulpi->base, np);
if (err < 0) {
kfree(ulpi);
return ERR_PTR(err);
}
return &ulpi->base;
}
static void tegra124_ulpi_lane_remove(struct tegra_xusb_lane *lane)
{
struct tegra_xusb_ulpi_lane *ulpi = to_ulpi_lane(lane);
kfree(ulpi);
}
static const struct tegra_xusb_lane_ops tegra124_ulpi_lane_ops = {
.probe = tegra124_ulpi_lane_probe,
.remove = tegra124_ulpi_lane_remove,
};
static int tegra124_ulpi_phy_init(struct phy *phy)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
return tegra124_xusb_padctl_enable(lane->pad->padctl);
}
static int tegra124_ulpi_phy_exit(struct phy *phy)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
return tegra124_xusb_padctl_disable(lane->pad->padctl);
}
static int tegra124_ulpi_phy_power_on(struct phy *phy)
{
return 0;
}
static int tegra124_ulpi_phy_power_off(struct phy *phy)
{
return 0;
}
static const struct phy_ops tegra124_ulpi_phy_ops = {
.init = tegra124_ulpi_phy_init,
.exit = tegra124_ulpi_phy_exit,
.power_on = tegra124_ulpi_phy_power_on,
.power_off = tegra124_ulpi_phy_power_off,
.owner = THIS_MODULE,
};
static struct tegra_xusb_pad *
tegra124_ulpi_pad_probe(struct tegra_xusb_padctl *padctl,
const struct tegra_xusb_pad_soc *soc,
struct device_node *np)
{
struct tegra_xusb_ulpi_pad *ulpi;
struct tegra_xusb_pad *pad;
int err;
ulpi = kzalloc(sizeof(*ulpi), GFP_KERNEL);
if (!ulpi)
return ERR_PTR(-ENOMEM);
pad = &ulpi->base;
pad->ops = &tegra124_ulpi_lane_ops;
pad->soc = soc;
err = tegra_xusb_pad_init(pad, padctl, np);
if (err < 0) {
kfree(ulpi);
goto out;
}
err = tegra_xusb_pad_register(pad, &tegra124_ulpi_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 tegra124_ulpi_pad_remove(struct tegra_xusb_pad *pad)
{
struct tegra_xusb_ulpi_pad *ulpi = to_ulpi_pad(pad);
kfree(ulpi);
}
static const struct tegra_xusb_pad_ops tegra124_ulpi_ops = {
.probe = tegra124_ulpi_pad_probe,
.remove = tegra124_ulpi_pad_remove,
};
static const struct tegra_xusb_pad_soc tegra124_ulpi_pad = {
.name = "ulpi",
.num_lanes = ARRAY_SIZE(tegra124_ulpi_lanes),
.lanes = tegra124_ulpi_lanes,
.ops = &tegra124_ulpi_ops,
};
static const char * const tegra124_hsic_functions[] = {
"snps",
"xusb",
};
static const struct tegra_xusb_lane_soc tegra124_hsic_lanes[] = {
TEGRA124_LANE("hsic-0", 0x004, 14, 0x1, hsic),
TEGRA124_LANE("hsic-1", 0x004, 15, 0x1, hsic),
};
static struct tegra_xusb_lane *
tegra124_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 tegra124_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 tegra124_hsic_lane_ops = {
.probe = tegra124_hsic_lane_probe,
.remove = tegra124_hsic_lane_remove,
};
static int tegra124_hsic_phy_init(struct phy *phy)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
return tegra124_xusb_padctl_enable(lane->pad->padctl);
}
static int tegra124_hsic_phy_exit(struct phy *phy)
{
struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
return tegra124_xusb_padctl_disable(lane->pad->padctl);
}
static int tegra124_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));
if (hsic->auto_term)
value |= XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN;
else
value &= ~XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN;
padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index));
value &= ~((XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK <<
XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT) |
(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK <<
XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT) |
(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK <<
XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT) |
(XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK <<
XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT));
value |= (hsic->tx_rtune_n <<
XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT) |
(hsic->tx_rtune_p <<
XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT) |
(hsic->tx_rslew_n <<
XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT) |
(hsic->tx_rslew_p <<
XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT);
padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL0(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_CTL1(index));
value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE |
XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA |
XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX |
XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI |
XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX |
XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX);
value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE;
padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
return 0;
}
static int tegra124_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_CTL1(index));
value |= XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX |
XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI |
XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX |
XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX;
padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
regulator_disable(pad->supply);
return 0;
}
static const struct phy_ops tegra124_hsic_phy_ops = {
.init = tegra124_hsic_phy_init,
.exit = tegra124_hsic_phy_exit,
.power_on = tegra124_hsic_phy_power_on,
.power_off = tegra124_hsic_phy_power_off,
.owner = THIS_MODULE,
};
static struct tegra_xusb_pad *
tegra124_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 = &tegra124_hsic_lane_ops;
pad->soc = soc;
err = tegra_xusb_pad_init(pad, padctl, np);
if (err < 0) {
kfree(hsic);
goto out;
}
err = tegra_xusb_pad_register(pad, &tegra124_hsic_phy_ops);
if (err < 0)
goto unregister;
dev_set_drvdata(&pad->dev, pad);
return pad;
unregister: