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freebsd-dev/sys/arm64/nvidia/tegra210/tegra210_xusbpadctl.c

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright 2020 Michal Meloun <mmel@FreeBSD.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/malloc.h>
#include <sys/rman.h>
#include <machine/bus.h>
#include <dev/extres/clk/clk.h>
#include <dev/extres/hwreset/hwreset.h>
#include <dev/extres/phy/phy.h>
#include <dev/extres/regulator/regulator.h>
#include <dev/fdt/fdt_common.h>
#include <dev/fdt/fdt_pinctrl.h>
#include <dev/ofw/openfirm.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include <arm/nvidia/tegra_efuse.h>
#include <dt-bindings/pinctrl/pinctrl-tegra-xusb.h>
#include "phynode_if.h"
/* FUSE calibration data. */
#define FUSE_SKU_CALIB_0 0x0F0
#define FUSE_SKU_CALIB_0_HS_CURR_LEVEL_123(x, i) (((x) >> (11 + ((i) - 1) * 6)) & 0x3F);
#define FUSE_SKU_CALIB_0_HS_TERM_RANGE_ADJ(x) (((x) >> 7) & 0x0F);
#define FUSE_SKU_CALIB_0_HS_CURR_LEVEL_0(x) (((x) >> 0) & 0x3F);
#define FUSE_USB_CALIB_EXT_0 0x250
#define FUSE_USB_CALIB_EXT_0_RPD_CTRL(x) (((x) >> 0) & 0x1F);
/* Registers. */
#define XUSB_PADCTL_USB2_PAD_MUX 0x004
#define XUSB_PADCTL_USB2_PORT_CAP 0x008
#define USB2_PORT_CAP_PORT_REVERSE_ID(p) (1 << (3 + (p) * 4))
#define USB2_PORT_CAP_PORT_INTERNAL(p) (1 << (2 + (p) * 4))
#define USB2_PORT_CAP_PORT_CAP(p, x) (((x) & 3) << ((p) * 4))
#define USB2_PORT_CAP_PORT_CAP_OTG 0x3
#define USB2_PORT_CAP_PORT_CAP_DEVICE 0x2
#define USB2_PORT_CAP_PORT_CAP_HOST 0x1
#define USB2_PORT_CAP_PORT_CAP_DISABLED 0x0
#define XUSB_PADCTL_SS_PORT_MAP 0x014
#define SS_PORT_MAP_PORT_INTERNAL(p) (1 << (3 + (p) * 4))
#define SS_PORT_MAP_PORT_MAP(p, x) (((x) & 7) << ((p) * 4))
#define XUSB_PADCTL_ELPG_PROGRAM1 0x024
#define ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN (1 << 31)
#define ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 30)
#define ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN (1 << 29)
#define ELPG_PROGRAM1_SSP_ELPG_VCORE_DOWN(x) (1 << (2 + (x) * 3))
#define ELPG_PROGRAM1_SSP_ELPG_CLAMP_EN_EARLY(x) (1 << (1 + (x) * 3))
#define ELPG_PROGRAM1_SSP_ELPG_CLAMP_EN(x) (1 << (0 + (x) * 3))
#define XUSB_PADCTL_USB3_PAD_MUX 0x028
#define USB3_PAD_MUX_SATA_IDDQ_DISABLE(x) (1 << (8 + (x)))
#define USB3_PAD_MUX_PCIE_IDDQ_DISABLE(x) (1 << (1 + (x)))
#define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1(x) (0x084 + (x) * 0x40)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_USBON_RPU_OVRD_VAL (1 << 23)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_USBON_RPU_OVRD ( 1 << 22)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_USBON_RPD_OVRD_VAL (1 << 21)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_USBON_RPD_OVRD (1 << 20)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_USBOP_RPU_OVRD_VAL (1 << 19)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_USBOP_RPU_OVRD (1 << 18)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_USBOP_RPD_OVRD_VAL (1 << 17)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_USBOP_RPD_OVRD (1 << 16)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_DYN_DLY(x) (((x) & 0x3) << 9)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV(x) (((x) & 0x3) << 7)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18 (1 << 6)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_DIV_DET_EN (1 << 4)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_VOP_DIV2P7_DET (1 << 3)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_VOP_DIV2P0_DET (1 << 2)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_VON_DIV2P7_DET (1 << 1)
#define USB2_BATTERY_CHRG_OTGPAD_CTL1_VON_DIV2P0_DET (1 << 0)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL0(x) (0x088 + (x) * 0x40)
#define USB2_OTG_PAD_CTL0_PD_ZI (1 << 29)
#define USB2_OTG_PAD_CTL0_PD2_OVRD_EN (1 << 28)
#define USB2_OTG_PAD_CTL0_PD2 (1 << 27)
#define USB2_OTG_PAD_CTL0_PD (1 << 26)
#define USB2_OTG_PAD_CTL0_TERM_EN (1 << 25)
#define USB2_OTG_PAD_CTL0_LS_FSLEW(x) (((x) & 0x0F) << 21)
#define USB2_OTG_PAD_CTL0_LS_RSLEW(x) (((x) & 0x0F) << 17)
#define USB2_OTG_PAD_CTL0_FS_FSLEW(x) (((x) & 0x0F) << 13)
#define USB2_OTG_PAD_CTL0_FS_RSLEW(x) (((x) & 0x0F) << 9)
#define USB2_OTG_PAD_CTL0_HS_SLEW(x) (((x) & 0x3F) << 6)
#define USB2_OTG_PAD_CTL0_HS_CURR_LEVEL(x) (((x) & 0x3F) << 0)
#define XUSB_PADCTL_USB2_OTG_PAD_CTL1(x) (0x08C + (x) * 0x40)
#define USB2_OTG_PAD_CTL1_RPD_CTRL(x) (((x) & 0x1F) << 26)
#define USB2_OTG_PAD_CTL1_RPU_STATUS_HIGH (1 << 25)
#define USB2_OTG_PAD_CTL1_RPU_SWITCH_LOW (1 << 24)
#define USB2_OTG_PAD_CTL1_RPU_SWITCH_OVRD (1 << 23)
#define USB2_OTG_PAD_CTL1_HS_LOOPBACK_OVRD_VAL (1 << 22)
#define USB2_OTG_PAD_CTL1_HS_LOOPBACK_OVRD_EN (1 << 21)
#define USB2_OTG_PAD_CTL1_PTERM_RANGE_ADJ(x) (((x) & 0x0F) << 17)
#define USB2_OTG_PAD_CTL1_PD_DISC_OVRD_VAL (1 << 16)
#define USB2_OTG_PAD_CTL1_PD_CHRP_OVRD_VAL (1 << 15)
#define USB2_OTG_PAD_CTL1_RPU_RANGE_ADJ(x) (((x) & 0x03) << 13)
#define USB2_OTG_PAD_CTL1_HS_COUP_EN(x) (((x) & 0x03) << 11)
#define USB2_OTG_PAD_CTL1_SPARE(x) (((x) & 0x0F) << 7)
#define USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ(x) (((x) & 0x0F) << 3)
#define USB2_OTG_PAD_CTL1_PD_DR (1 << 2)
#define USB2_OTG_PAD_CTL1_PD_DISC_OVRD (1 << 1)
#define USB2_OTG_PAD_CTL1_PD_CHRP_OVRD (1 << 0)
#define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL0(x) (0x0C0 + (x) * 0x40)
#define XUSB_PADCTL_USB2_BIAS_PAD_CTL0 0x0284
#define USB2_BIAS_PAD_CTL0_TRK_PWR_ENA (1 << 29)
#define USB2_BIAS_PAD_CTL0_SPARE(x) (((x) & 0xF) << 25)
#define USB2_BIAS_PAD_CTL0_CHG_DIV(x) (((x) & 0xF) << 21)
#define USB2_BIAS_PAD_CTL0_TEMP_COEF(x) (((x) & 0x7) << 18)
#define USB2_BIAS_PAD_CTL0_VREF_CTRL(x) (((x) & 0x7) << 15)
#define USB2_BIAS_PAD_CTL0_ADJRPU(x) (((x) & 0x7) << 12)
#define USB2_BIAS_PAD_CTL0_PD (1 << 11)
#define USB2_BIAS_PAD_CTL0_TERM_OFFSETL(x) (((x) & 0x7) << 8)
#define USB2_BIAS_PAD_CTL0_HS_CHIRP_LEVEL(x) (((x) & 0x3) << 6)
#define USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL(x) (((x) & 0x7) << 3)
#define USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL(x) (((x) & 0x7) << 0)
#define XUSB_PADCTL_USB2_BIAS_PAD_CTL1 0x0288
#define USB2_BIAS_PAD_CTL1_FORCE_TRK_CLK_EN (1 << 30)
#define USB2_BIAS_PAD_CTL1_TRK_SW_OVRD (1 << 29)
#define USB2_BIAS_PAD_CTL1_TRK_DONE (1 << 28)
#define USB2_BIAS_PAD_CTL1_TRK_START (1 << 27)
#define USB2_BIAS_PAD_CTL1_PD_TRK (1 << 26)
#define USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER(x) (((x) & 0x7F) << 19)
#define USB2_BIAS_PAD_CTL1_TRK_START_TIMER(x) (((x) & 0x7F) << 12)
#define USB2_BIAS_PAD_CTL1_PCTRL(x) (((x) & 0x3F) << 6)
#define USB2_BIAS_PAD_CTL1_TCTRL(x) (((x) & 0x3F) << 0)
#define XUSB_PADCTL_HSIC_PAD_CTL0(x) (0x300 + (x) * 0x20)
#define HSIC_PAD_CTL0_RPU_STROBE (1 << 18)
#define HSIC_PAD_CTL0_RPU_DATA1 (1 << 17)
#define HSIC_PAD_CTL0_RPU_DATA0 (1 << 16)
#define HSIC_PAD_CTL0_RPD_STROBE (1 << 15)
#define HSIC_PAD_CTL0_RPD_DATA1 (1 << 14)
#define HSIC_PAD_CTL0_RPD_DATA0 (1 << 13)
#define HSIC_PAD_CTL0_LPBK_STROBE (1 << 12)
#define HSIC_PAD_CTL0_LPBK_DATA1 (1 << 11)
#define HSIC_PAD_CTL0_LPBK_DATA0 (1 << 10)
#define HSIC_PAD_CTL0_PD_ZI_STROBE (1 << 9)
#define HSIC_PAD_CTL0_PD_ZI_DATA1 (1 << 8)
#define HSIC_PAD_CTL0_PD_ZI_DATA0 (1 << 7)
#define HSIC_PAD_CTL0_PD_RX_STROBE (1 << 6)
#define HSIC_PAD_CTL0_PD_RX_DATA1 (1 << 5)
#define HSIC_PAD_CTL0_PD_RX_DATA0 (1 << 4)
#define HSIC_PAD_CTL0_PD_TX_STROBE (1 << 3)
#define HSIC_PAD_CTL0_PD_TX_DATA1 (1 << 2)
#define HSIC_PAD_CTL0_PD_TX_DATA0 (1 << 1)
#define HSIC_PAD_CTL0_IDDQ (1 << 0)
#define XUSB_PADCTL_HSIC_PAD_CTL1(x) (0x304 + (x) * 0x20)
#define HSIC_PAD_CTL1_RTERM(x) (((x) & 0xF) << 12)
#define HSIC_PAD_CTL1_HSIC_OPT(x) (((x) & 0xF) << 8)
#define HSIC_PAD_CTL1_TX_SLEW(x) (((x) & 0xF) << 4)
#define HSIC_PAD_CTL1_TX_RTUNEP(x) (((x) & 0xF) << 0)
#define XUSB_PADCTL_HSIC_PAD_CTL2(x) (0x308 + (x) * 0x20)
#define HSIC_PAD_CTL2_RX_STROBE_TRIM(x) (((x) & 0xF) << 8)
#define HSIC_PAD_CTL2_RX_DATA1_TRIM(x) (((x) & 0xF) << 4)
#define HSIC_PAD_CTL2_RX_DATA0_TRIM(x) (((x) & 0xF) << 0)
#define XUSB_PADCTL_HSIC_PAD_TRK_CTL 0x340
#define HSIC_PAD_TRK_CTL_AUTO_RTERM_EN (1 << 24)
#define HSIC_PAD_TRK_CTL_FORCE_TRK_CLK_EN (1 << 23)
#define HSIC_PAD_TRK_CTL_TRK_SW_OVRD (1 << 22)
#define HSIC_PAD_TRK_CTL_TRK_DONE (1 << 21)
#define HSIC_PAD_TRK_CTL_TRK_START (1 << 20)
#define HSIC_PAD_TRK_CTL_PD_TRK (1 << 19)
#define HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER(x) (((x) & 0x3F) << 12)
#define HSIC_PAD_TRK_CTL_TRK_START_TIMER(x) (((x) & 0x7F) << 5)
#define HSIC_PAD_TRK_CTL_RTERM_OUT(x) (((x) & 0x1F) << 0)
#define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL 0x344
#define XUSB_PADCTL_UPHY_PLL_P0_CTL1 0x360
#define UPHY_PLL_P0_CTL1_PLL0_FREQ_PSDIV(x) (((x) & 0x03) << 28)
#define UPHY_PLL_P0_CTL1_PLL0_FREQ_NDIV(x) (((x) & 0xFF) << 20)
#define UPHY_PLL_P0_CTL1_PLL0_FREQ_MDIV(x) (((x) & 0x03) << 16)
#define UPHY_PLL_P0_CTL1_PLL0_LOCKDET_STATUS (1 << 15)
#define UPHY_PLL_P0_CTL1_PLL0_MODE_GET(x) (((x) >> 8) & 0x03)
#define UPHY_PLL_P0_CTL1_PLL0_BYPASS_EN (1 << 7)
#define UPHY_PLL_P0_CTL1_PLL0_FREERUN_EN (1 << 6)
#define UPHY_PLL_P0_CTL1_PLL0_PWR_OVRD (1 << 4)
#define UPHY_PLL_P0_CTL1_PLL0_ENABLE (1 << 3)
#define UPHY_PLL_P0_CTL1_PLL0_SLEEP(x) (((x) & 0x03) << 1)
#define UPHY_PLL_P0_CTL1_PLL0_IDDQ (1 << 0)
#define XUSB_PADCTL_UPHY_PLL_P0_CTL2 0x364
#define UPHY_PLL_P0_CTL2_PLL0_CAL_CTRL(x) (((x) & 0xFFFFFF) << 4)
#define UPHY_PLL_P0_CTL2_PLL0_CAL_RESET (1 << 3)
#define UPHY_PLL_P0_CTL2_PLL0_CAL_OVRD (1 << 2)
#define UPHY_PLL_P0_CTL2_PLL0_CAL_DONE (1 << 1)
#define UPHY_PLL_P0_CTL2_PLL0_CAL_EN (1 << 0)
#define XUSB_PADCTL_UPHY_PLL_P0_CTL4 0x36c
#define UPHY_PLL_P0_CTL4_PLL0_TCLKOUT_EN (1 << 28)
#define UPHY_PLL_P0_CTL4_PLL0_CLKDIST_CTRL(x) (((x) & 0xF) << 20)
#define UPHY_PLL_P0_CTL4_PLL0_XDIGCLK_EN (1 << 19)
#define UPHY_PLL_P0_CTL4_PLL0_XDIGCLK_SEL(x) (((x) & 0x7) << 16)
#define UPHY_PLL_P0_CTL4_PLL0_TXCLKREF_EN (1 << 15)
#define UPHY_PLL_P0_CTL4_PLL0_TXCLKREF_SEL(x) (((x) & 0x3) << 12)
#define UPHY_PLL_P0_CTL4_PLL0_FBCLKBUF_EN (1 << 9)
#define UPHY_PLL_P0_CTL4_PLL0_REFCLKBUF_EN (1 << 8)
#define UPHY_PLL_P0_CTL4_PLL0_REFCLK_SEL(x) (((x) & 0xF) << 4)
#define UPHY_PLL_P0_CTL4_PLL0_REFCLK_TERM100 (1 << 0)
#define XUSB_PADCTL_UPHY_PLL_P0_CTL5 0x370
#define UPHY_PLL_P0_CTL5_PLL0_DCO_CTRL(x) (((x) & 0xFF) << 16)
#define UPHY_PLL_P0_CTL5_PLL0_LPF_CTRL(x) (((x) & 0xFF) << 8)
#define UPHY_PLL_P0_CTL5_PLL0_CP_CTRL(x) (((x) & 0x0F) << 4)
#define UPHY_PLL_P0_CTL5_PLL0_PFD_CTRL(x) (((x) & 0x03) << 0)
#define XUSB_PADCTL_UPHY_PLL_P0_CTL8 0x37c
#define UPHY_PLL_P0_CTL8_PLL0_RCAL_DONE (1U << 31)
#define UPHY_PLL_P0_CTL8_PLL0_RCAL_VAL(x) (((x) & 0x1F) << 24)
#define UPHY_PLL_P0_CTL8_PLL0_RCAL_BYP_EN (1 << 23)
#define UPHY_PLL_P0_CTL8_PLL0_RCAL_BYP_CODE(x) (((x) & 0x1F) << 16)
#define UPHY_PLL_P0_CTL8_PLL0_RCAL_OVRD (1 << 15)
#define UPHY_PLL_P0_CTL8_PLL0_RCAL_CLK_EN (1 << 13)
#define UPHY_PLL_P0_CTL8_PLL0_RCAL_EN (1 << 12)
#define UPHY_PLL_P0_CTL8_PLL0_BGAP_CTRL(x) (((x) & 0xFFF) << 0)
#define XUSB_PADCTL_UPHY_MISC_PAD_P_CTL1(x) (0x460 + (x) * 0x40)
#define XUSB_PADCTL_UPHY_PLL_S0_CTL1 0x860
#define UPHY_PLL_S0_CTL1_PLL0_FREQ_PSDIV(x) (((x) & 0x03) << 28)
#define UPHY_PLL_S0_CTL1_PLL0_FREQ_NDIV(x) (((x) & 0xFF) << 20)
#define UPHY_PLL_S0_CTL1_PLL0_FREQ_MDIV(x) (((x) & 0x03) << 16)
#define UPHY_PLL_S0_CTL1_PLL0_LOCKDET_STATUS (1 << 15)
#define UPHY_PLL_S0_CTL1_PLL0_MODE_GET(x) (((x) >> 8) & 0x03)
#define UPHY_PLL_S0_CTL1_PLL0_BYPASS_EN (1 << 7)
#define UPHY_PLL_S0_CTL1_PLL0_FREERUN_EN (1 << 6)
#define UPHY_PLL_S0_CTL1_PLL0_PWR_OVRD (1 << 4)
#define UPHY_PLL_S0_CTL1_PLL0_ENABLE (1 << 3)
#define UPHY_PLL_S0_CTL1_PLL0_SLEEP(x) (((x) & 0x03) << 1)
#define UPHY_PLL_S0_CTL1_PLL0_IDDQ (1 << 0)
#define XUSB_PADCTL_UPHY_PLL_S0_CTL2 0x864
#define UPHY_PLL_S0_CTL2_PLL0_CAL_CTRL(x) (((x) & 0xFFFFFF) << 4)
#define UPHY_PLL_S0_CTL2_PLL0_CAL_RESET (1 << 3)
#define UPHY_PLL_S0_CTL2_PLL0_CAL_OVRD (1 << 2)
#define UPHY_PLL_S0_CTL2_PLL0_CAL_DONE (1 << 1)
#define UPHY_PLL_S0_CTL2_PLL0_CAL_EN (1 << 0)
#define XUSB_PADCTL_UPHY_PLL_S0_CTL4 0x86c
#define UPHY_PLL_S0_CTL4_PLL0_TCLKOUT_EN (1 << 28)
#define UPHY_PLL_S0_CTL4_PLL0_CLKDIST_CTRL(x) (((x) & 0xF) << 20)
#define UPHY_PLL_S0_CTL4_PLL0_XDIGCLK_EN (1 << 19)
#define UPHY_PLL_S0_CTL4_PLL0_XDIGCLK_SEL(x) (((x) & 0x7) << 16)
#define UPHY_PLL_S0_CTL4_PLL0_TXCLKREF_EN (1 << 15)
#define UPHY_PLL_S0_CTL4_PLL0_TXCLKREF_SEL(x) (((x) & 0x3) << 12)
#define UPHY_PLL_S0_CTL4_PLL0_FBCLKBUF_EN (1 << 9)
#define UPHY_PLL_S0_CTL4_PLL0_REFCLKBUF_EN (1 << 8)
#define UPHY_PLL_S0_CTL4_PLL0_REFCLK_SEL(x) (((x) & 0xF) << 4)
#define UPHY_PLL_S0_CTL4_PLL0_REFCLK_TERM100 (1 << 0)
#define XUSB_PADCTL_UPHY_PLL_S0_CTL5 0x870
#define UPHY_PLL_S0_CTL5_PLL0_DCO_CTRL(x) (((x) & 0xFF) << 16)
#define UPHY_PLL_S0_CTL5_PLL0_LPF_CTRL(x) (((x) & 0xFF) << 8)
#define UPHY_PLL_S0_CTL5_PLL0_CP_CTRL(x) (((x) & 0x0F) << 4)
#define UPHY_PLL_S0_CTL5_PLL0_PFD_CTRL(x) (((x) & 0x03) << 0)
#define XUSB_PADCTL_UPHY_PLL_S0_CTL8 0x87c
#define UPHY_PLL_S0_CTL8_PLL0_RCAL_DONE (1U << 31)
#define UPHY_PLL_S0_CTL8_PLL0_RCAL_VAL(x) (((x) & 0x1F) << 24)
#define UPHY_PLL_S0_CTL8_PLL0_RCAL_BYP_EN (1 << 23)
#define UPHY_PLL_S0_CTL8_PLL0_RCAL_BYP_CODE(x) (((x) & 0x1F) << 16)
#define UPHY_PLL_S0_CTL8_PLL0_RCAL_OVRD (1 << 15)
#define UPHY_PLL_S0_CTL8_PLL0_RCAL_CLK_EN (1 << 13)
#define UPHY_PLL_S0_CTL8_PLL0_RCAL_EN (1 << 12)
#define UPHY_PLL_S0_CTL8_PLL0_BGAP_CTRL(x) (((x) & 0xFFF) << 0)
#define XUSB_PADCTL_UPHY_MISC_PAD_S0_CTL1 0x960
#define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1(x) (0xa60 + (x) * 0x40)
#define UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL(x) (((x) & 0x3) << 16)
#define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2(x) (0xa64 + (x) * 0x40)
#define UPHY_USB3_PAD_ECTL2_RX_IQ_CTRL(x) (((x) & 0x000F) << 16)
#define UPHY_USB3_PAD_ECTL2_RX_CTLE(x) (((x) & 0xFFFF) << 0)
#define XUSB_PADCTL_UPHY_USB3_PAD_ECTL3(x) (0xa68 + (x) * 0x40)
#define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4(x) (0xa6c + (x) * 0x40)
#define UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL(x) (((x) & 0xFFFF) << 16)
#define UPHY_USB3_PAD_ECTL4_RX_PI_CTRL(x) (((x) & 0x00FF) << 0)
#define XUSB_PADCTL_UPHY_USB3_PAD_ECTL6(x) (0xa74 + (x) * 0x40)
#define WR4(_sc, _r, _v) bus_write_4((_sc)->mem_res, (_r), (_v))
#define RD4(_sc, _r) bus_read_4((_sc)->mem_res, (_r))
struct padctl_softc {
device_t dev;
struct resource *mem_res;
hwreset_t rst;
int phy_ena_cnt;
int pcie_ena_cnt;
int sata_ena_cnt;
/* Fuses calibration data */
/* USB2 */
uint32_t hs_curr_level[4];
uint32_t hs_curr_level_offs; /* Not inited yet, always 0 */
uint32_t hs_term_range_adj;
uint32_t rpd_ctrl;
/* HSIC */
uint32_t rx_strobe_trim; /* Not inited yet, always 0 */
uint32_t rx_data0_trim; /* Not inited yet, always 0 */
uint32_t rx_data1_trim; /* Not inited yet, always 0 */
uint32_t tx_rtune_p; /* Not inited yet, always 0 */
uint32_t strobe_trim; /* Not inited yet, always 0 */
};
static struct ofw_compat_data compat_data[] = {
{"nvidia,tegra210-xusb-padctl", 1},
{NULL, 0},
};
/* Ports. */
enum padctl_port_type {
PADCTL_PORT_USB2,
PADCTL_PORT_HSIC,
PADCTL_PORT_USB3,
};
struct padctl_lane;
struct padctl_port {
enum padctl_port_type type;
const char *name;
const char *base_name;
int idx;
int (*init)(struct padctl_softc *sc,
struct padctl_port *port);
/* Runtime data. */
phandle_t xref;
bool enabled;
bool internal;
uint32_t companion;
regulator_t supply_vbus;
struct padctl_lane *lane;
};
static int usb3_port_init(struct padctl_softc *sc, struct padctl_port *port);
#define PORT(t, n, p, i) { \
.type = t, \
.name = n "-" #p, \
.base_name = n, \
.idx = p, \
.init = i, \
}
static struct padctl_port ports_tbl[] = {
PORT(PADCTL_PORT_USB2, "usb2", 0, NULL),
PORT(PADCTL_PORT_USB2, "usb2", 1, NULL),
PORT(PADCTL_PORT_USB2, "usb2", 2, NULL),
PORT(PADCTL_PORT_USB2, "usb2", 3, NULL),
PORT(PADCTL_PORT_HSIC, "hsic", 0, NULL),
PORT(PADCTL_PORT_HSIC, "hsic", 1, NULL),
PORT(PADCTL_PORT_USB3, "usb3", 0, usb3_port_init),
PORT(PADCTL_PORT_USB3, "usb3", 1, usb3_port_init),
};
/* Pads - a group of lannes. */
enum padctl_pad_type {
PADCTL_PAD_USB2,
PADCTL_PAD_HSIC,
PADCTL_PAD_PCIE,
PADCTL_PAD_SATA,
};
struct padctl_lane;
struct padctl_pad {
const char *name;
enum padctl_pad_type type;
const char *clock_name;
char *reset_name; /* XXX constify !!!!!! */
int (*enable)(struct padctl_softc *sc,
struct padctl_lane *lane);
int (*disable)(struct padctl_softc *sc,
struct padctl_lane *lane);
/* Runtime data. */
bool enabled;
clk_t clk;
hwreset_t reset;
int nlanes;
struct padctl_lane *lanes[8]; /* Safe maximum value. */
};
static int usb2_enable(struct padctl_softc *sc, struct padctl_lane *lane);
static int usb2_disable(struct padctl_softc *sc, struct padctl_lane *lane);
static int hsic_enable(struct padctl_softc *sc, struct padctl_lane *lane);
static int hsic_disable(struct padctl_softc *sc, struct padctl_lane *lane);
static int pcie_enable(struct padctl_softc *sc, struct padctl_lane *lane);
static int pcie_disable(struct padctl_softc *sc, struct padctl_lane *lane);
static int sata_enable(struct padctl_softc *sc, struct padctl_lane *lane);
static int sata_disable(struct padctl_softc *sc, struct padctl_lane *lane);
#define PAD(n, t, cn, rn, e, d) { \
.name = n, \
.type = t, \
.clock_name = cn, \
.reset_name = rn, \
.enable = e, \
.disable = d, \
}
static struct padctl_pad pads_tbl[] = {
PAD("usb2", PADCTL_PAD_USB2, "trk", NULL, usb2_enable, usb2_disable),
PAD("hsic", PADCTL_PAD_HSIC, "trk", NULL, hsic_enable, hsic_disable),
PAD("pcie", PADCTL_PAD_PCIE, "pll", "phy", pcie_enable, pcie_disable),
PAD("sata", PADCTL_PAD_SATA, "pll", "phy", sata_enable, sata_disable),
};
/* Lanes. */
static char *usb_mux[] = {"snps", "xusb", "uart", "rsvd"};
static char *hsic_mux[] = {"snps", "xusb"};
static char *pci_mux[] = {"pcie-x1", "usb3-ss", "sata", "pcie-x4"};
struct padctl_lane {
const char *name;
int idx;
bus_size_t reg;
uint32_t shift;
uint32_t mask;
char **mux;
int nmux;
/* Runtime data. */
bool enabled;
phandle_t xref;
struct padctl_pad *pad;
struct padctl_port *port;
int mux_idx;
};
#define LANE(n, p, r, s, m, mx) { \
.name = n "-" #p, \
.idx = p, \
.reg = r, \
.shift = s, \
.mask = m, \
.mux = mx, \
.nmux = nitems(mx), \
}
static struct padctl_lane lanes_tbl[] = {
LANE("usb2", 0, XUSB_PADCTL_USB2_PAD_MUX, 0, 0x3, usb_mux),
LANE("usb2", 1, XUSB_PADCTL_USB2_PAD_MUX, 2, 0x3, usb_mux),
LANE("usb2", 2, XUSB_PADCTL_USB2_PAD_MUX, 4, 0x3, usb_mux),
LANE("usb2", 3, XUSB_PADCTL_USB2_PAD_MUX, 6, 0x3, usb_mux),
LANE("hsic", 0, XUSB_PADCTL_USB2_PAD_MUX, 14, 0x1, hsic_mux),
LANE("hsic", 1, XUSB_PADCTL_USB2_PAD_MUX, 15, 0x1, hsic_mux),
LANE("pcie", 0, XUSB_PADCTL_USB3_PAD_MUX, 12, 0x3, pci_mux),
LANE("pcie", 1, XUSB_PADCTL_USB3_PAD_MUX, 14, 0x3, pci_mux),
LANE("pcie", 2, XUSB_PADCTL_USB3_PAD_MUX, 16, 0x3, pci_mux),
LANE("pcie", 3, XUSB_PADCTL_USB3_PAD_MUX, 18, 0x3, pci_mux),
LANE("pcie", 4, XUSB_PADCTL_USB3_PAD_MUX, 20, 0x3, pci_mux),
LANE("pcie", 5, XUSB_PADCTL_USB3_PAD_MUX, 22, 0x3, pci_mux),
LANE("pcie", 6, XUSB_PADCTL_USB3_PAD_MUX, 24, 0x3, pci_mux),
LANE("sata", 0, XUSB_PADCTL_USB3_PAD_MUX, 30, 0x3, pci_mux),
};
/* Define all possible mappings for USB3 port lanes */
struct padctl_lane_map {
int port_idx;
enum padctl_pad_type pad_type;
int lane_idx;
};
#define LANE_MAP(pi, pt, li) { \
.port_idx = pi, \
.pad_type = pt, \
.lane_idx = li, \
}
static struct padctl_lane_map lane_map_tbl[] = {
LANE_MAP(0, PADCTL_PAD_PCIE, 6), /* port USB3-0 -> lane PCIE-0 */
LANE_MAP(1, PADCTL_PAD_PCIE, 5), /* port USB3-1 -> lane PCIE-1 */
LANE_MAP(2, PADCTL_PAD_PCIE, 0), /* port USB3-2 -> lane PCIE-0 */
LANE_MAP(2, PADCTL_PAD_PCIE, 2), /* port USB3-2 -> lane PCIE-2 */
LANE_MAP(3, PADCTL_PAD_PCIE, 4), /* port USB3-3 -> lane PCIE-4 */
};
/* Phy class and methods. */
static int xusbpadctl_phy_enable(struct phynode *phy, bool enable);
static phynode_method_t xusbpadctl_phynode_methods[] = {
PHYNODEMETHOD(phynode_enable, xusbpadctl_phy_enable),
PHYNODEMETHOD_END
};
DEFINE_CLASS_1(xusbpadctl_phynode, xusbpadctl_phynode_class,
xusbpadctl_phynode_methods, 0, phynode_class);
static struct padctl_port *search_lane_port(struct padctl_softc *sc,
struct padctl_lane *lane);
static void tegra210_xusb_pll_hw_control_enable(void) {}
static void tegra210_xusb_pll_hw_sequence_start(void) {}
static void tegra210_sata_pll_hw_control_enable(void) {}
static void tegra210_sata_pll_hw_sequence_start(void) {}
/* -------------------------------------------------------------------------
*
* PEX functions
*/
static int
uphy_pex_enable(struct padctl_softc *sc, struct padctl_pad *pad)
{
uint32_t reg;
int rv, i;
if (sc->pcie_ena_cnt > 0) {
sc->pcie_ena_cnt++;
return (0);
}
/* 22.8.4 UPHY PLLs, Step 4, page 1346 */
/* 1. Deassert PLL/Lane resets. */
rv = clk_enable(pad->clk);
if (rv < 0) {
device_printf(sc->dev, "Cannot enable clock for pad '%s': %d\n",
pad->name, rv);
return (rv);
}
rv = hwreset_deassert(pad->reset);
if (rv < 0) {
device_printf(sc->dev, "Cannot unreset pad '%s': %d\n",
pad->name, rv);
clk_disable(pad->clk);
return (rv);
}
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
reg &= ~UPHY_PLL_P0_CTL2_PLL0_CAL_CTRL(~0);
reg |= UPHY_PLL_P0_CTL2_PLL0_CAL_CTRL(0x136);
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL5);
reg &= ~UPHY_PLL_P0_CTL5_PLL0_DCO_CTRL(~0);
reg |= UPHY_PLL_P0_CTL5_PLL0_DCO_CTRL(0x2a);
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL5, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
reg |= UPHY_PLL_P0_CTL1_PLL0_PWR_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
reg |= UPHY_PLL_P0_CTL2_PLL0_CAL_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
reg |= UPHY_PLL_P0_CTL8_PLL0_RCAL_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8, reg);
/*
* 2. For the following registers, default values
* take care of the desired frequency.
*/
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL4);
reg &= ~UPHY_PLL_P0_CTL4_PLL0_TXCLKREF_SEL(~0);
reg &= ~UPHY_PLL_P0_CTL4_PLL0_REFCLK_SEL(~0);
reg |= UPHY_PLL_P0_CTL4_PLL0_TXCLKREF_SEL(0x2);
reg |= UPHY_PLL_P0_CTL4_PLL0_TXCLKREF_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL4, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
reg &= ~UPHY_PLL_P0_CTL1_PLL0_FREQ_MDIV(~0);
reg &= ~UPHY_PLL_P0_CTL1_PLL0_FREQ_NDIV(~0);
reg |= UPHY_PLL_P0_CTL1_PLL0_FREQ_NDIV(0x19);
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
reg &= ~UPHY_PLL_P0_CTL1_PLL0_IDDQ;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
reg &= ~UPHY_PLL_P0_CTL1_PLL0_SLEEP(~0);
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1, reg);
/* 3. Wait 100 ns. */
DELAY(10);
/* XXX This in not in TRM */
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL4);
reg |= UPHY_PLL_P0_CTL4_PLL0_REFCLKBUF_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL4, reg);
/* 4. Calibration. */
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
reg |= UPHY_PLL_P0_CTL2_PLL0_CAL_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2, reg);
for (i = 30; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
if (reg & UPHY_PLL_P0_CTL2_PLL0_CAL_DONE)
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout in calibration step 1 "
"for pad '%s' (0x%08X).\n", pad->name, reg);
rv = ETIMEDOUT;
goto err;
}
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
reg &= ~UPHY_PLL_P0_CTL2_PLL0_CAL_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2, reg);
for (i = 10; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
if ((reg & UPHY_PLL_P0_CTL2_PLL0_CAL_DONE) == 0)
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout in calibration step 2 "
"for pad '%s'.\n", pad->name);
rv = ETIMEDOUT;
goto err;
}
/* 5. Enable the PLL (20 <20>s Lock time) */
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
reg |= UPHY_PLL_P0_CTL1_PLL0_ENABLE;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1, reg);
for (i = 10; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
if (reg & UPHY_PLL_P0_CTL1_PLL0_LOCKDET_STATUS)
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout while enabling PLL "
"for pad '%s'.\n", pad->name);
rv = ETIMEDOUT;
goto err;
}
/* 6. RCAL. */
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
reg |= UPHY_PLL_P0_CTL8_PLL0_RCAL_EN;
reg |= UPHY_PLL_P0_CTL8_PLL0_RCAL_CLK_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8, reg);
for (i = 10; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
if (reg & UPHY_PLL_P0_CTL8_PLL0_RCAL_DONE)
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout in RX calibration step 1 "
"for pad '%s'.\n", pad->name);
rv = ETIMEDOUT;
goto err;
}
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
reg &= ~UPHY_PLL_P0_CTL8_PLL0_RCAL_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8, reg);
for (i = 10; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
if (!(reg & UPHY_PLL_P0_CTL8_PLL0_RCAL_DONE))
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout in RX calibration step 2 "
"for pad '%s'.\n", pad->name);
rv = ETIMEDOUT;
goto err;
}
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
reg &= ~UPHY_PLL_P0_CTL8_PLL0_RCAL_CLK_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8, reg);
/* Enable Hardware Power Sequencer. */
tegra210_xusb_pll_hw_control_enable();
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1);
reg &= ~UPHY_PLL_P0_CTL1_PLL0_PWR_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
reg &= ~UPHY_PLL_P0_CTL2_PLL0_CAL_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8);
reg &= ~UPHY_PLL_P0_CTL8_PLL0_RCAL_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL8, reg);
DELAY(50);
tegra210_xusb_pll_hw_sequence_start();
sc->pcie_ena_cnt++;
return (0);
err:
hwreset_deassert(pad->reset);
clk_disable(pad->clk);
return (rv);
}
static void
uphy_pex_disable(struct padctl_softc *sc, struct padctl_pad *pad)
{
int rv;
sc->pcie_ena_cnt--;
if (sc->pcie_ena_cnt <= 0) {
rv = hwreset_assert(pad->reset);
if (rv != 0) {
device_printf(sc->dev, "Cannot reset pad '%s': %d\n",
pad->name, rv);
}
rv = clk_disable(pad->clk);
if (rv != 0) {
device_printf(sc->dev,
"Cannot dicable clock for pad '%s': %d\n",
pad->name, rv);
}
}
}
static int
uphy_sata_enable(struct padctl_softc *sc, struct padctl_pad *pad, bool usb)
{
uint32_t reg;
int rv, i;
/* 22.8.4 UPHY PLLs, Step 4, page 1346 */
/* 1. Deassert PLL/Lane resets. */
if (sc->sata_ena_cnt > 0) {
sc->sata_ena_cnt++;
return (0);
}
rv = clk_enable(pad->clk);
if (rv < 0) {
device_printf(sc->dev, "Cannot enable clock for pad '%s': %d\n",
pad->name, rv);
return (rv);
}
rv = hwreset_deassert(pad->reset);
if (rv < 0) {
device_printf(sc->dev, "Cannot unreset pad '%s': %d\n",
pad->name, rv);
clk_disable(pad->clk);
return (rv);
}
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2);
reg &= ~UPHY_PLL_P0_CTL2_PLL0_CAL_CTRL(~0);
reg |= UPHY_PLL_P0_CTL2_PLL0_CAL_CTRL(0x136);
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL2, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL5);
reg &= ~UPHY_PLL_P0_CTL5_PLL0_DCO_CTRL(~0);
reg |= UPHY_PLL_P0_CTL5_PLL0_DCO_CTRL(0x2a);
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL5, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1);
reg |= UPHY_PLL_S0_CTL1_PLL0_PWR_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2);
reg |= UPHY_PLL_S0_CTL2_PLL0_CAL_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8);
reg |= UPHY_PLL_S0_CTL8_PLL0_RCAL_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8, reg);
/*
* 2. For the following registers, default values
* take care of the desired frequency.
*/
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL4);
reg &= ~UPHY_PLL_S0_CTL4_PLL0_TXCLKREF_SEL(~0);
reg &= ~UPHY_PLL_S0_CTL4_PLL0_REFCLK_SEL(~0);
reg |= UPHY_PLL_S0_CTL4_PLL0_TXCLKREF_EN;
if (usb)
reg |= UPHY_PLL_S0_CTL4_PLL0_TXCLKREF_SEL(0x2);
else
reg |= UPHY_PLL_S0_CTL4_PLL0_TXCLKREF_SEL(0x0);
/* XXX PLL0_XDIGCLK_EN */
/*
value &= ~(1 << 19);
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL4, reg);
*/
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1);
reg &= ~UPHY_PLL_S0_CTL1_PLL0_FREQ_MDIV(~0);
reg &= ~UPHY_PLL_S0_CTL1_PLL0_FREQ_NDIV(~0);
if (usb)
reg |= UPHY_PLL_S0_CTL1_PLL0_FREQ_NDIV(0x19);
else
reg |= UPHY_PLL_S0_CTL1_PLL0_FREQ_NDIV(0x1e);
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1);
reg &= ~UPHY_PLL_S0_CTL1_PLL0_IDDQ;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1);
reg &= ~UPHY_PLL_S0_CTL1_PLL0_SLEEP(~0);
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1, reg);
/* 3. Wait 100 ns. */
DELAY(1);
/* XXX This in not in TRM */
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL4);
reg |= UPHY_PLL_S0_CTL4_PLL0_REFCLKBUF_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL4, reg);
/* 4. Calibration. */
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2);
reg |= UPHY_PLL_S0_CTL2_PLL0_CAL_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2, reg);
for (i = 30; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2);
if (reg & UPHY_PLL_S0_CTL2_PLL0_CAL_DONE)
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout in calibration step 1 "
"for pad '%s'.\n", pad->name);
rv = ETIMEDOUT;
goto err;
}
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2);
reg &= ~UPHY_PLL_S0_CTL2_PLL0_CAL_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2, reg);
for (i = 10; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2);
if ((reg & UPHY_PLL_S0_CTL2_PLL0_CAL_DONE) == 0)
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout in calibration step 2 "
"for pad '%s'.\n", pad->name);
rv = ETIMEDOUT;
goto err;
}
/* 5. Enable the PLL (20 <20>s Lock time) */
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1);
reg |= UPHY_PLL_S0_CTL1_PLL0_ENABLE;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1, reg);
for (i = 10; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1);
if (reg & UPHY_PLL_S0_CTL1_PLL0_LOCKDET_STATUS)
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout while enabling PLL "
"for pad '%s'.\n", pad->name);
rv = ETIMEDOUT;
goto err;
}
/* 6. RCAL. */
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8);
reg |= UPHY_PLL_S0_CTL8_PLL0_RCAL_EN;
reg |= UPHY_PLL_S0_CTL8_PLL0_RCAL_CLK_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8, reg);
for (i = 10; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8);
if (reg & UPHY_PLL_S0_CTL8_PLL0_RCAL_DONE)
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout in RX calibration step 1 "
"for pad '%s'.\n", pad->name);
rv = ETIMEDOUT;
goto err;
}
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8);
reg &= ~UPHY_PLL_S0_CTL8_PLL0_RCAL_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8, reg);
for (i = 10; i > 0; i--) {
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8);
if (!(reg & UPHY_PLL_S0_CTL8_PLL0_RCAL_DONE))
break;
DELAY(10);
}
if (i <= 0) {
device_printf(sc->dev, "Timedout in RX calibration step 2 "
"for pad '%s'.\n", pad->name);
rv = ETIMEDOUT;
goto err;
}
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8);
reg &= ~UPHY_PLL_S0_CTL8_PLL0_RCAL_CLK_EN;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8, reg);
/* Enable Hardware Power Sequencer. */
tegra210_sata_pll_hw_control_enable();
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1);
reg &= ~UPHY_PLL_S0_CTL1_PLL0_PWR_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2);
reg &= ~UPHY_PLL_S0_CTL2_PLL0_CAL_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL2, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8);
reg &= ~UPHY_PLL_S0_CTL8_PLL0_RCAL_OVRD;
WR4(sc, XUSB_PADCTL_UPHY_PLL_S0_CTL8, reg);
DELAY(50);
tegra210_sata_pll_hw_sequence_start();
sc->sata_ena_cnt++;
return (0);
err:
hwreset_deassert(pad->reset);
clk_disable(pad->clk);
return (rv);
}
static void
uphy_sata_disable(struct padctl_softc *sc, struct padctl_pad *pad)
{
int rv;
sc->sata_ena_cnt--;
if (sc->sata_ena_cnt <= 0) {
rv = hwreset_assert(pad->reset);
if (rv != 0) {
device_printf(sc->dev, "Cannot reset pad '%s': %d\n",
pad->name, rv);
}
rv = clk_disable(pad->clk);
if (rv != 0) {
device_printf(sc->dev,
"Cannot dicable clock for pad '%s': %d\n",
pad->name, rv);
}
}
}
static int
usb3_port_init(struct padctl_softc *sc, struct padctl_port *port)
{
uint32_t reg;
struct padctl_pad *pad;
int rv;
pad = port->lane->pad;
reg = RD4(sc, XUSB_PADCTL_SS_PORT_MAP);
if (port->internal)
reg &= ~SS_PORT_MAP_PORT_INTERNAL(port->idx);
else
reg |= SS_PORT_MAP_PORT_INTERNAL(port->idx);
reg &= ~SS_PORT_MAP_PORT_MAP(port->idx, ~0);
reg |= SS_PORT_MAP_PORT_MAP(port->idx, port->companion);
WR4(sc, XUSB_PADCTL_SS_PORT_MAP, reg);
if (port->supply_vbus != NULL) {
rv = regulator_enable(port->supply_vbus);
if (rv != 0) {
device_printf(sc->dev,
"Cannot enable vbus regulator\n");
return (rv);
}
}
reg = RD4(sc, XUSB_PADCTL_UPHY_USB3_PAD_ECTL1(port->idx));
reg &= ~UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL(~0);
reg |= UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL(2);
WR4(sc, XUSB_PADCTL_UPHY_USB3_PAD_ECTL1(port->idx), reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_USB3_PAD_ECTL2(port->idx));
reg &= ~UPHY_USB3_PAD_ECTL2_RX_CTLE(~0);
reg |= UPHY_USB3_PAD_ECTL2_RX_CTLE(0x00fc);
WR4(sc, XUSB_PADCTL_UPHY_USB3_PAD_ECTL2(port->idx), reg);
WR4(sc, XUSB_PADCTL_UPHY_USB3_PAD_ECTL3(port->idx), 0xc0077f1f);
reg = RD4(sc, XUSB_PADCTL_UPHY_USB3_PAD_ECTL4(port->idx));
reg &= ~UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL(~0);
reg |= UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL(0x01c7);
WR4(sc, XUSB_PADCTL_UPHY_USB3_PAD_ECTL4(port->idx), reg);
WR4(sc, XUSB_PADCTL_UPHY_USB3_PAD_ECTL6(port->idx), 0xfcf01368);
if (pad->type == PADCTL_PAD_SATA)
rv = uphy_sata_enable(sc, pad, true);
else
rv = uphy_pex_enable(sc, pad);
if (rv != 0)
return (rv);
reg = RD4(sc, XUSB_PADCTL_ELPG_PROGRAM1);
reg &= ~ELPG_PROGRAM1_SSP_ELPG_VCORE_DOWN(port->idx);
WR4(sc, XUSB_PADCTL_ELPG_PROGRAM1, reg);
DELAY(100);
reg = RD4(sc, XUSB_PADCTL_ELPG_PROGRAM1);
reg &= ~ELPG_PROGRAM1_SSP_ELPG_CLAMP_EN_EARLY(port->idx);
WR4(sc, XUSB_PADCTL_ELPG_PROGRAM1, reg);
DELAY(100);
reg = RD4(sc, XUSB_PADCTL_ELPG_PROGRAM1);
reg &= ~ELPG_PROGRAM1_SSP_ELPG_CLAMP_EN(port->idx);
WR4(sc, XUSB_PADCTL_ELPG_PROGRAM1, reg);
DELAY(100);
return (0);
}
static int
pcie_enable(struct padctl_softc *sc, struct padctl_lane *lane)
{
uint32_t reg;
int rv;
rv = uphy_pex_enable(sc, lane->pad);
if (rv != 0)
return (rv);
reg = RD4(sc, XUSB_PADCTL_USB3_PAD_MUX);
reg |= USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->idx);
WR4(sc, XUSB_PADCTL_USB3_PAD_MUX, reg);
return (0);
}
static int
pcie_disable(struct padctl_softc *sc, struct padctl_lane *lane)
{
uint32_t reg;
reg = RD4(sc, XUSB_PADCTL_USB3_PAD_MUX);
reg &= ~USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->idx);
WR4(sc, XUSB_PADCTL_USB3_PAD_MUX, reg);
uphy_pex_disable(sc, lane->pad);
return (0);
}
static int
sata_enable(struct padctl_softc *sc, struct padctl_lane *lane)
{
uint32_t reg;
int rv;
rv = uphy_sata_enable(sc, lane->pad, false);
if (rv != 0)
return (rv);
reg = RD4(sc, XUSB_PADCTL_USB3_PAD_MUX);
reg |= USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->idx);
WR4(sc, XUSB_PADCTL_USB3_PAD_MUX, reg);
return (0);
}
static int
sata_disable(struct padctl_softc *sc, struct padctl_lane *lane)
{
uint32_t reg;
reg = RD4(sc, XUSB_PADCTL_USB3_PAD_MUX);
reg &= ~USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->idx);
WR4(sc, XUSB_PADCTL_USB3_PAD_MUX, reg);
uphy_sata_disable(sc, lane->pad);
return (0);
}
static int
hsic_enable(struct padctl_softc *sc, struct padctl_lane *lane)
{
uint32_t reg;
struct padctl_pad *pad;
struct padctl_port *port;
int rv;
port = search_lane_port(sc, lane);
if (port == NULL) {
device_printf(sc->dev, "Cannot find port for lane: %s\n",
lane->name);
}
pad = lane->pad;
if (port->supply_vbus != NULL) {
rv = regulator_enable(port->supply_vbus);
if (rv != 0) {
device_printf(sc->dev,
"Cannot enable vbus regulator\n");
return (rv);
}
}
WR4(sc, XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL, sc->strobe_trim);
reg = RD4(sc, XUSB_PADCTL_HSIC_PAD_CTL1(lane->idx));
reg &= ~HSIC_PAD_CTL1_TX_RTUNEP(~0);
reg |= HSIC_PAD_CTL1_TX_RTUNEP(sc->tx_rtune_p);
WR4(sc, XUSB_PADCTL_HSIC_PAD_CTL1(lane->idx), reg);
reg = RD4(sc, XUSB_PADCTL_HSIC_PAD_CTL2(lane->idx));
reg &= ~HSIC_PAD_CTL2_RX_STROBE_TRIM(~0);
reg &= ~HSIC_PAD_CTL2_RX_DATA1_TRIM(~0);
reg &= ~HSIC_PAD_CTL2_RX_DATA0_TRIM(~0);
reg |= HSIC_PAD_CTL2_RX_STROBE_TRIM(sc->rx_strobe_trim);
reg |= HSIC_PAD_CTL2_RX_DATA1_TRIM(sc->rx_data1_trim);
reg |= HSIC_PAD_CTL2_RX_DATA0_TRIM(sc->rx_data0_trim);
WR4(sc, XUSB_PADCTL_HSIC_PAD_CTL2(lane->idx), reg);
reg = RD4(sc, XUSB_PADCTL_HSIC_PAD_CTL0(lane->idx));
reg &= ~HSIC_PAD_CTL0_RPU_DATA0;
reg &= ~HSIC_PAD_CTL0_RPU_DATA1;
reg &= ~HSIC_PAD_CTL0_RPU_STROBE;
reg &= ~HSIC_PAD_CTL0_PD_RX_DATA0;
reg &= ~HSIC_PAD_CTL0_PD_RX_DATA1;
reg &= ~HSIC_PAD_CTL0_PD_RX_STROBE;
reg &= ~HSIC_PAD_CTL0_PD_ZI_DATA0;
reg &= ~HSIC_PAD_CTL0_PD_ZI_DATA1;
reg &= ~HSIC_PAD_CTL0_PD_ZI_STROBE;
reg &= ~HSIC_PAD_CTL0_PD_TX_DATA0;
reg &= ~HSIC_PAD_CTL0_PD_TX_DATA1;
reg &= ~HSIC_PAD_CTL0_PD_TX_STROBE;
reg |= HSIC_PAD_CTL0_RPD_DATA0;
reg |= HSIC_PAD_CTL0_RPD_DATA1;
reg |= HSIC_PAD_CTL0_RPD_STROBE;
WR4(sc, XUSB_PADCTL_HSIC_PAD_CTL0(lane->idx), reg);
rv = clk_enable(pad->clk);
if (rv < 0) {
device_printf(sc->dev, "Cannot enable clock for pad '%s': %d\n",
pad->name, rv);
if (port->supply_vbus != NULL)
regulator_disable(port->supply_vbus);
return (rv);
}
reg = RD4(sc, XUSB_PADCTL_HSIC_PAD_TRK_CTL);
reg &= ~HSIC_PAD_TRK_CTL_TRK_START_TIMER(~0);
reg &= ~HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER(~0);
reg |= HSIC_PAD_TRK_CTL_TRK_START_TIMER(0x1e);
reg |= HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER(0x0a);
WR4(sc, XUSB_PADCTL_HSIC_PAD_TRK_CTL, reg);
DELAY(10);
reg = RD4(sc, XUSB_PADCTL_HSIC_PAD_TRK_CTL);
reg &= ~HSIC_PAD_TRK_CTL_PD_TRK;
WR4(sc, XUSB_PADCTL_HSIC_PAD_TRK_CTL, reg);
DELAY(50);
clk_disable(pad->clk);
return (0);
}
static int
hsic_disable(struct padctl_softc *sc, struct padctl_lane *lane)
{
uint32_t reg;
struct padctl_port *port;
int rv;
port = search_lane_port(sc, lane);
if (port == NULL) {
device_printf(sc->dev, "Cannot find port for lane: %s\n",
lane->name);
}
reg = RD4(sc, XUSB_PADCTL_HSIC_PAD_CTL0(lane->idx));
reg |= HSIC_PAD_CTL0_PD_RX_DATA0;
reg |= HSIC_PAD_CTL0_PD_RX_DATA1;
reg |= HSIC_PAD_CTL0_PD_RX_STROBE;
reg |= HSIC_PAD_CTL0_PD_ZI_DATA0;
reg |= HSIC_PAD_CTL0_PD_ZI_DATA1;
reg |= HSIC_PAD_CTL0_PD_ZI_STROBE;
reg |= HSIC_PAD_CTL0_PD_TX_DATA0;
reg |= HSIC_PAD_CTL0_PD_TX_DATA1;
reg |= HSIC_PAD_CTL0_PD_TX_STROBE;
WR4(sc, XUSB_PADCTL_HSIC_PAD_CTL1(lane->idx), reg);
if (port->supply_vbus != NULL) {
rv = regulator_disable(port->supply_vbus);
if (rv != 0) {
device_printf(sc->dev,
"Cannot disable vbus regulator\n");
return (rv);
}
}
return (0);
}
static int
usb2_enable(struct padctl_softc *sc, struct padctl_lane *lane)
{
uint32_t reg;
struct padctl_pad *pad;
struct padctl_port *port;
int rv;
port = search_lane_port(sc, lane);
if (port == NULL) {
device_printf(sc->dev, "Cannot find port for lane: %s\n",
lane->name);
}
pad = lane->pad;
reg = RD4(sc, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
reg &= ~USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL(~0);
reg &= ~USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL(~0);
reg |= USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL(0x7);
WR4(sc, XUSB_PADCTL_USB2_BIAS_PAD_CTL0, reg);
reg = RD4(sc, XUSB_PADCTL_USB2_PORT_CAP);
reg &= ~USB2_PORT_CAP_PORT_CAP(lane->idx, ~0);
reg |= USB2_PORT_CAP_PORT_CAP(lane->idx, USB2_PORT_CAP_PORT_CAP_HOST);
WR4(sc, XUSB_PADCTL_USB2_PORT_CAP, reg);
reg = RD4(sc, XUSB_PADCTL_USB2_OTG_PAD_CTL0(lane->idx));
reg &= ~USB2_OTG_PAD_CTL0_HS_CURR_LEVEL(~0);
reg &= ~USB2_OTG_PAD_CTL0_HS_SLEW(~0);
reg &= ~USB2_OTG_PAD_CTL0_PD;
reg &= ~USB2_OTG_PAD_CTL0_PD2;
reg &= ~USB2_OTG_PAD_CTL0_PD_ZI;
reg |= USB2_OTG_PAD_CTL0_HS_SLEW(14);
reg |= USB2_OTG_PAD_CTL0_HS_CURR_LEVEL(sc->hs_curr_level[lane->idx] +
sc->hs_curr_level_offs);
WR4(sc, XUSB_PADCTL_USB2_OTG_PAD_CTL0(lane->idx), reg);
reg = RD4(sc, XUSB_PADCTL_USB2_OTG_PAD_CTL1(lane->idx));
reg &= ~USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ(~0);
reg &= ~USB2_OTG_PAD_CTL1_RPD_CTRL(~0);
reg &= ~USB2_OTG_PAD_CTL1_PD_DR;
reg &= ~USB2_OTG_PAD_CTL1_PD_CHRP_OVRD;
reg &= ~USB2_OTG_PAD_CTL1_PD_DISC_OVRD;
reg |= USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ(sc->hs_term_range_adj);
reg |= USB2_OTG_PAD_CTL1_RPD_CTRL(sc->rpd_ctrl);
WR4(sc, XUSB_PADCTL_USB2_OTG_PAD_CTL1(lane->idx), reg);
reg = RD4(sc, XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1(lane->idx));
reg &= ~USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV(~0);
reg |= USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18;
WR4(sc, XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1(lane->idx), reg);
if (port->supply_vbus != NULL) {
rv = regulator_enable(port->supply_vbus);
if (rv != 0) {
device_printf(sc->dev,
"Cannot enable vbus regulator\n");
return (rv);
}
}
rv = clk_enable(pad->clk);
if (rv < 0) {
device_printf(sc->dev, "Cannot enable clock for pad '%s': %d\n",
pad->name, rv);
if (port->supply_vbus != NULL)
regulator_disable(port->supply_vbus);
return (rv);
}
reg = RD4(sc, XUSB_PADCTL_USB2_BIAS_PAD_CTL1);
reg &= ~USB2_BIAS_PAD_CTL1_TRK_START_TIMER(~0);
reg &= ~USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER(~0);
reg |= USB2_BIAS_PAD_CTL1_TRK_START_TIMER(0x1e);
reg |= USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER(0x0a);
WR4(sc, XUSB_PADCTL_USB2_BIAS_PAD_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
reg &= ~USB2_BIAS_PAD_CTL0_PD;
WR4(sc, XUSB_PADCTL_USB2_BIAS_PAD_CTL0, reg);
return (0);
}
static int
usb2_disable(struct padctl_softc *sc, struct padctl_lane *lane)
{
uint32_t reg;
struct padctl_pad *pad;
struct padctl_port *port;
int rv;
port = search_lane_port(sc, lane);
if (port == NULL) {
device_printf(sc->dev, "Cannot find port for lane: %s\n",
lane->name);
}
pad = lane->pad;
reg = RD4(sc, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
reg |= USB2_BIAS_PAD_CTL0_PD;
WR4(sc, XUSB_PADCTL_USB2_BIAS_PAD_CTL0, reg);
if (port->supply_vbus != NULL) {
rv = regulator_disable(port->supply_vbus);
if (rv != 0) {
device_printf(sc->dev,
"Cannot disable vbus regulator\n");
return (rv);
}
}
rv = clk_disable(pad->clk);
if (rv < 0) {
device_printf(sc->dev, "Cannot disable clock for pad '%s': %d\n",
pad->name, rv);
return (rv);
}
return (0);
}
static int
pad_common_enable(struct padctl_softc *sc)
{
uint32_t reg;
reg = RD4(sc, XUSB_PADCTL_ELPG_PROGRAM1);
reg &= ~ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN;
WR4(sc, XUSB_PADCTL_ELPG_PROGRAM1, reg);
DELAY(100);
reg = RD4(sc, XUSB_PADCTL_ELPG_PROGRAM1);
reg &= ~ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY;
WR4(sc, XUSB_PADCTL_ELPG_PROGRAM1, reg);
DELAY(100);
reg = RD4(sc, XUSB_PADCTL_ELPG_PROGRAM1);
reg &= ~ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN;
WR4(sc, XUSB_PADCTL_ELPG_PROGRAM1, reg);
DELAY(100);
return (0);
}
static int
pad_common_disable(struct padctl_softc *sc)
{
uint32_t reg;
reg = RD4(sc, XUSB_PADCTL_ELPG_PROGRAM1);
reg |= ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN;
WR4(sc, XUSB_PADCTL_ELPG_PROGRAM1, reg);
DELAY(100);
reg = RD4(sc, XUSB_PADCTL_ELPG_PROGRAM1);
reg |= ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY;
WR4(sc, XUSB_PADCTL_ELPG_PROGRAM1, reg);
DELAY(100);
reg = RD4(sc, XUSB_PADCTL_ELPG_PROGRAM1);
reg |= ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN;
WR4(sc, XUSB_PADCTL_ELPG_PROGRAM1, reg);
DELAY(100);
return (0);
}
static int
xusbpadctl_phy_enable(struct phynode *phy, bool enable)
{
device_t dev;
intptr_t id;
struct padctl_softc *sc;
struct padctl_lane *lane;
struct padctl_pad *pad;
int rv;
dev = phynode_get_device(phy);
id = phynode_get_id(phy);
sc = device_get_softc(dev);
if (id < 0 || id >= nitems(lanes_tbl)) {
device_printf(dev, "Unknown phy: %d\n", (int)id);
return (ENXIO);
}
lane = lanes_tbl + id;
if (!lane->enabled) {
device_printf(dev, "Lane is not enabled/configured: %s\n",
lane->name);
return (ENXIO);
}
pad = lane->pad;
if (enable) {
if (sc->phy_ena_cnt == 0) {
rv = pad_common_enable(sc);
if (rv != 0)
return (rv);
}
sc->phy_ena_cnt++;
}
if (enable)
rv = pad->enable(sc, lane);
else
rv = pad->disable(sc, lane);
if (rv != 0)
return (rv);
if (!enable) {
if (sc->phy_ena_cnt == 1) {
rv = pad_common_disable(sc);
if (rv != 0)
return (rv);
}
sc->phy_ena_cnt--;
}
return (0);
}
/* -------------------------------------------------------------------------
*
* FDT processing
*/
static struct padctl_port *
search_port(struct padctl_softc *sc, char *port_name)
{
int i;
for (i = 0; i < nitems(ports_tbl); i++) {
if (strcmp(port_name, ports_tbl[i].name) == 0)
return (&ports_tbl[i]);
}
return (NULL);
}
static struct padctl_port *
search_lane_port(struct padctl_softc *sc, struct padctl_lane *lane)
{
int i;
for (i = 0; i < nitems(ports_tbl); i++) {
if (!ports_tbl[i].enabled)
continue;
if (ports_tbl[i].lane == lane)
return (ports_tbl + i);
}
return (NULL);
}
static struct padctl_lane *
search_lane(struct padctl_softc *sc, char *lane_name)
{
int i;
for (i = 0; i < nitems(lanes_tbl); i++) {
if (strcmp(lane_name, lanes_tbl[i].name) == 0)
return (lanes_tbl + i);
}
return (NULL);
}
static struct padctl_lane *
search_pad_lane(struct padctl_softc *sc, enum padctl_pad_type type, int idx)
{
int i;
for (i = 0; i < nitems(lanes_tbl); i++) {
if (!lanes_tbl[i].enabled)
continue;
if (type == lanes_tbl[i].pad->type && idx == lanes_tbl[i].idx)
return (lanes_tbl + i);
}
return (NULL);
}
static struct padctl_lane *
search_usb3_pad_lane(struct padctl_softc *sc, int idx)
{
int i;
struct padctl_lane *lane, *tmp;
lane = NULL;
for (i = 0; i < nitems(lane_map_tbl); i++) {
if (idx != lane_map_tbl[i].port_idx)
continue;
tmp = search_pad_lane(sc, lane_map_tbl[i].pad_type,
lane_map_tbl[i].lane_idx);
if (tmp == NULL)
continue;
if (strcmp(tmp->mux[tmp->mux_idx], "usb3-ss") != 0)
continue;
if (lane != NULL) {
device_printf(sc->dev, "Duplicated mappings found for"
" lanes: %s and %s\n", lane->name, tmp->name);
return (NULL);
}
lane = tmp;
}
return (lane);
}
static struct padctl_pad *
search_pad(struct padctl_softc *sc, char *pad_name)
{
int i;
for (i = 0; i < nitems(pads_tbl); i++) {
if (strcmp(pad_name, pads_tbl[i].name) == 0)
return (pads_tbl + i);
}
return (NULL);
}
static int
search_mux(struct padctl_softc *sc, struct padctl_lane *lane, char *fnc_name)
{
int i;
for (i = 0; i < lane->nmux; i++) {
if (strcmp(fnc_name, lane->mux[i]) == 0)
return (i);
}
return (-1);
}
static int
config_lane(struct padctl_softc *sc, struct padctl_lane *lane)
{
uint32_t reg;
reg = RD4(sc, lane->reg);
reg &= ~(lane->mask << lane->shift);
reg |= (lane->mux_idx & lane->mask) << lane->shift;
WR4(sc, lane->reg, reg);
return (0);
}
static int
process_lane(struct padctl_softc *sc, phandle_t node, struct padctl_pad *pad)
{
struct padctl_lane *lane;
struct phynode *phynode;
struct phynode_init_def phy_init;
char *name;
char *function;
int rv;
name = NULL;
function = NULL;
rv = OF_getprop_alloc(node, "name", (void **)&name);
if (rv <= 0) {
device_printf(sc->dev, "Cannot read lane name.\n");
return (ENXIO);
}
lane = search_lane(sc, name);
if (lane == NULL) {
device_printf(sc->dev, "Unknown lane: %s\n", name);
rv = ENXIO;
goto end;
}
/* Read function (mux) settings. */
rv = OF_getprop_alloc(node, "nvidia,function", (void **)&function);
if (rv <= 0) {
device_printf(sc->dev, "Cannot read lane function.\n");
rv = ENXIO;
goto end;
}
lane->mux_idx = search_mux(sc, lane, function);
if (lane->mux_idx == ~0) {
device_printf(sc->dev, "Unknown function %s for lane %s\n",
function, name);
rv = ENXIO;
goto end;
}
rv = config_lane(sc, lane);
if (rv != 0) {
device_printf(sc->dev, "Cannot configure lane: %s: %d\n",
name, rv);
rv = ENXIO;
goto end;
}
lane->xref = OF_xref_from_node(node);
lane->pad = pad;
lane->enabled = true;
pad->lanes[pad->nlanes++] = lane;
/* Create and register phy. */
bzero(&phy_init, sizeof(phy_init));
phy_init.id = lane - lanes_tbl;
phy_init.ofw_node = node;
phynode = phynode_create(sc->dev, &xusbpadctl_phynode_class, &phy_init);
if (phynode == NULL) {
device_printf(sc->dev, "Cannot create phy\n");
rv = ENXIO;
goto end;
}
if (phynode_register(phynode) == NULL) {
device_printf(sc->dev, "Cannot create phy\n");
return (ENXIO);
}
rv = 0;
end:
if (name != NULL)
OF_prop_free(name);
if (function != NULL)
OF_prop_free(function);
return (rv);
}
static int
process_pad(struct padctl_softc *sc, phandle_t node)
{
phandle_t xref;
struct padctl_pad *pad;
char *name;
int rv;
name = NULL;
rv = OF_getprop_alloc(node, "name", (void **)&name);
if (rv <= 0) {
device_printf(sc->dev, "Cannot read pad name.\n");
return (ENXIO);
}
pad = search_pad(sc, name);
if (pad == NULL) {
device_printf(sc->dev, "Unknown pad: %s\n", name);
rv = ENXIO;
goto end;
}
if (pad->clock_name != NULL) {
rv = clk_get_by_ofw_name(sc->dev, node, pad->clock_name,
&pad->clk);
if (rv != 0) {
device_printf(sc->dev, "Cannot get '%s' clock\n",
pad->clock_name);
return (ENXIO);
}
}
if (pad->reset_name != NULL) {
rv = hwreset_get_by_ofw_name(sc->dev, node, pad->reset_name,
&pad->reset);
if (rv != 0) {
device_printf(sc->dev, "Cannot get '%s' reset\n",
pad->reset_name);
return (ENXIO);
}
}
/* Read and process associated lanes. */
node = ofw_bus_find_child(node, "lanes");
if (node <= 0) {
device_printf(sc->dev, "Cannot find 'lanes' subnode\n");
rv = ENXIO;
goto end;
}
for (node = OF_child(node); node != 0; node = OF_peer(node)) {
if (!ofw_bus_node_status_okay(node))
continue;
rv = process_lane(sc, node, pad);
if (rv != 0)
goto end;
xref = OF_xref_from_node(node);
OF_device_register_xref(xref, sc->dev);
}
pad->enabled = true;
rv = 0;
end:
if (name != NULL)
OF_prop_free(name);
return (rv);
}
static int
process_port(struct padctl_softc *sc, phandle_t node)
{
struct padctl_port *port;
char *name;
int rv;
name = NULL;
rv = OF_getprop_alloc(node, "name", (void **)&name);
if (rv <= 0) {
device_printf(sc->dev, "Cannot read port name.\n");
return (ENXIO);
}
port = search_port(sc, name);
if (port == NULL) {
device_printf(sc->dev, "Unknown port: %s\n", name);
rv = ENXIO;
goto end;
}
regulator_get_by_ofw_property(sc->dev, node,
"vbus-supply", &port->supply_vbus);
if (OF_hasprop(node, "nvidia,internal"))
port->internal = true;
/* Find assigned lane */
if (port->lane == NULL) {
switch(port->type) {
/* Routing is fixed for USB2 AND HSIC. */
case PADCTL_PORT_USB2:
port->lane = search_pad_lane(sc, PADCTL_PAD_USB2,
port->idx);
break;
case PADCTL_PORT_HSIC:
port->lane = search_pad_lane(sc, PADCTL_PAD_HSIC,
port->idx);
break;
case PADCTL_PORT_USB3:
port->lane = search_usb3_pad_lane(sc, port->idx);
break;
}
}
if (port->lane == NULL) {
device_printf(sc->dev, "Cannot find lane for port: %s\n", name);
rv = ENXIO;
goto end;
}
if (port->type == PADCTL_PORT_USB3) {
rv = OF_getencprop(node, "nvidia,usb2-companion",
&(port->companion), sizeof(port->companion));
if (rv <= 0) {
device_printf(sc->dev,
"Missing 'nvidia,usb2-companion' property "
"for port: %s\n", name);
rv = ENXIO;
goto end;
}
}
port->enabled = true;
rv = 0;
end:
if (name != NULL)
OF_prop_free(name);
return (rv);
}
static int
parse_fdt(struct padctl_softc *sc, phandle_t base_node)
{
phandle_t node;
int rv;
rv = 0;
node = ofw_bus_find_child(base_node, "pads");
if (node <= 0) {
device_printf(sc->dev, "Cannot find pads subnode.\n");
return (ENXIO);
}
for (node = OF_child(node); node != 0; node = OF_peer(node)) {
if (!ofw_bus_node_status_okay(node))
continue;
rv = process_pad(sc, node);
if (rv != 0)
return (rv);
}
node = ofw_bus_find_child(base_node, "ports");
if (node <= 0) {
device_printf(sc->dev, "Cannot find ports subnode.\n");
return (ENXIO);
}
for (node = OF_child(node); node != 0; node = OF_peer(node)) {
if (!ofw_bus_node_status_okay(node))
continue;
rv = process_port(sc, node);
if (rv != 0)
return (rv);
}
return (0);
}
static void
load_calibration(struct padctl_softc *sc)
{
uint32_t reg;
int i;
reg = tegra_fuse_read_4(FUSE_SKU_CALIB_0);
sc->hs_curr_level[0] = FUSE_SKU_CALIB_0_HS_CURR_LEVEL_0(reg);
for (i = 1; i < nitems(sc->hs_curr_level); i++) {
sc->hs_curr_level[i] =
FUSE_SKU_CALIB_0_HS_CURR_LEVEL_123(reg, i);
}
sc->hs_term_range_adj = FUSE_SKU_CALIB_0_HS_TERM_RANGE_ADJ(reg);
tegra_fuse_read_4(FUSE_USB_CALIB_EXT_0);
sc->rpd_ctrl = FUSE_USB_CALIB_EXT_0_RPD_CTRL(reg);
}
/* -------------------------------------------------------------------------
*
* BUS functions
*/
static int
xusbpadctl_probe(device_t dev)
{
if (!ofw_bus_status_okay(dev))
return (ENXIO);
if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
return (ENXIO);
device_set_desc(dev, "Tegra XUSB phy");
return (BUS_PROBE_DEFAULT);
}
static int
xusbpadctl_detach(device_t dev)
{
/* This device is always present. */
return (EBUSY);
}
static int
xusbpadctl_attach(device_t dev)
{
struct padctl_softc * sc;
int i, rid, rv;
struct padctl_port *port;
phandle_t node;
sc = device_get_softc(dev);
sc->dev = dev;
node = ofw_bus_get_node(dev);
rid = 0;
sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
RF_ACTIVE);
if (sc->mem_res == NULL) {
device_printf(dev, "Cannot allocate memory resources\n");
return (ENXIO);
}
rv = hwreset_get_by_ofw_name(dev, 0, "padctl", &sc->rst);
if (rv != 0) {
device_printf(dev, "Cannot get 'padctl' reset: %d\n", rv);
return (rv);
}
rv = hwreset_deassert(sc->rst);
if (rv != 0) {
device_printf(dev, "Cannot unreset 'padctl' reset: %d\n", rv);
return (rv);
}
load_calibration(sc);
rv = parse_fdt(sc, node);
if (rv != 0) {
device_printf(dev, "Cannot parse fdt configuration: %d\n", rv);
return (rv);
}
for (i = 0; i < nitems(ports_tbl); i++) {
port = ports_tbl + i;
if (!port->enabled)
continue;
if (port->init == NULL)
continue;
rv = port->init(sc, port);
if (rv != 0) {
device_printf(dev, "Cannot init port '%s'\n",
port->name);
return (rv);
}
}
return (0);
}
static device_method_t tegra_xusbpadctl_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, xusbpadctl_probe),
DEVMETHOD(device_attach, xusbpadctl_attach),
DEVMETHOD(device_detach, xusbpadctl_detach),
DEVMETHOD_END
};
static DEFINE_CLASS_0(xusbpadctl, tegra_xusbpadctl_driver,
tegra_xusbpadctl_methods, sizeof(struct padctl_softc));
EARLY_DRIVER_MODULE(tegra_xusbpadctl, simplebus, tegra_xusbpadctl_driver,
NULL, NULL, 73);
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