Thierry Reding | 87d66f2 | 2015-11-11 18:25:02 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. |
| 3 | * Copyright (C) 2015 Google, Inc. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms and conditions of the GNU General Public License, |
| 7 | * version 2, as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | */ |
| 14 | |
| 15 | #include <linux/clk.h> |
| 16 | #include <linux/clk/tegra.h> |
| 17 | #include <linux/delay.h> |
| 18 | #include <linux/io.h> |
| 19 | #include <linux/mailbox_client.h> |
| 20 | #include <linux/module.h> |
| 21 | #include <linux/of.h> |
| 22 | #include <linux/phy/phy.h> |
| 23 | #include <linux/platform_device.h> |
| 24 | #include <linux/regulator/consumer.h> |
| 25 | #include <linux/reset.h> |
| 26 | #include <linux/slab.h> |
| 27 | |
| 28 | #include <soc/tegra/fuse.h> |
| 29 | |
| 30 | #include "xusb.h" |
| 31 | |
| 32 | #define FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(x) \ |
| 33 | ((x) ? (11 + ((x) - 1) * 6) : 0) |
| 34 | #define FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK 0x3f |
| 35 | #define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT 7 |
| 36 | #define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK 0xf |
| 37 | |
| 38 | #define FUSE_USB_CALIB_EXT_RPD_CTRL_SHIFT 0 |
| 39 | #define FUSE_USB_CALIB_EXT_RPD_CTRL_MASK 0x1f |
| 40 | |
| 41 | #define XUSB_PADCTL_USB2_PAD_MUX 0x004 |
| 42 | #define XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_SHIFT 16 |
| 43 | #define XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_MASK 0x3 |
| 44 | #define XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_XUSB 0x1 |
| 45 | #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_SHIFT 18 |
| 46 | #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_MASK 0x3 |
| 47 | #define XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_XUSB 0x1 |
| 48 | |
| 49 | #define XUSB_PADCTL_USB2_PORT_CAP 0x008 |
| 50 | #define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(x) (0x1 << ((x) * 4)) |
| 51 | #define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_MASK(x) (0x3 << ((x) * 4)) |
| 52 | |
| 53 | #define XUSB_PADCTL_SS_PORT_MAP 0x014 |
| 54 | #define XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(x) (1 << (((x) * 5) + 4)) |
| 55 | #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_SHIFT(x) ((x) * 5) |
| 56 | #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(x) (0x7 << ((x) * 5)) |
| 57 | #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(x, v) (((v) & 0x7) << ((x) * 5)) |
| 58 | |
| 59 | #define XUSB_PADCTL_ELPG_PROGRAM1 0x024 |
| 60 | #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN (1 << 31) |
| 61 | #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 30) |
| 62 | #define XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN (1 << 29) |
| 63 | #define XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN(x) (1 << (2 + (x) * 3)) |
| 64 | #define XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(x) \ |
| 65 | (1 << (1 + (x) * 3)) |
| 66 | #define XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN(x) (1 << ((x) * 3)) |
| 67 | |
| 68 | #define XUSB_PADCTL_USB3_PAD_MUX 0x028 |
| 69 | #define XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(x) (1 << (1 + (x))) |
| 70 | #define XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(x) (1 << (8 + (x))) |
| 71 | |
| 72 | #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(x) (0x084 + (x) * 0x40) |
| 73 | #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT 7 |
| 74 | #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_MASK 0x3 |
| 75 | #define XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18 (1 << 6) |
| 76 | |
| 77 | #define XUSB_PADCTL_USB2_OTG_PADX_CTL0(x) (0x088 + (x) * 0x40) |
| 78 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI (1 << 29) |
| 79 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 (1 << 27) |
| 80 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD (1 << 26) |
| 81 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT 0 |
| 82 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK 0x3f |
| 83 | |
| 84 | #define XUSB_PADCTL_USB2_OTG_PADX_CTL1(x) (0x08c + (x) * 0x40) |
| 85 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_SHIFT 26 |
| 86 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_MASK 0x1f |
| 87 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT 3 |
| 88 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK 0xf |
| 89 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR (1 << 2) |
| 90 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_OVRD (1 << 1) |
| 91 | #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_OVRD (1 << 0) |
| 92 | |
| 93 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0 0x284 |
| 94 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD (1 << 11) |
| 95 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT 3 |
| 96 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK 0x7 |
| 97 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL 0x7 |
| 98 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT 0 |
| 99 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK 0x7 |
| 100 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_VAL 0x2 |
| 101 | |
| 102 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1 0x288 |
| 103 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_PD_TRK (1 << 26) |
| 104 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_SHIFT 19 |
| 105 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_MASK 0x7f |
| 106 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_VAL 0x0a |
| 107 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_SHIFT 12 |
| 108 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_MASK 0x7f |
| 109 | #define XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_VAL 0x1e |
| 110 | |
| 111 | #define XUSB_PADCTL_HSIC_PADX_CTL0(x) (0x300 + (x) * 0x20) |
| 112 | #define XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE (1 << 18) |
| 113 | #define XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA1 (1 << 17) |
| 114 | #define XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA0 (1 << 16) |
| 115 | #define XUSB_PADCTL_HSIC_PAD_CTL0_RPD_STROBE (1 << 15) |
| 116 | #define XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 (1 << 14) |
| 117 | #define XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 (1 << 13) |
| 118 | #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_STROBE (1 << 9) |
| 119 | #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA1 (1 << 8) |
| 120 | #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA0 (1 << 7) |
| 121 | #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_STROBE (1 << 6) |
| 122 | #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA1 (1 << 5) |
| 123 | #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA0 (1 << 4) |
| 124 | #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_STROBE (1 << 3) |
| 125 | #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA1 (1 << 2) |
| 126 | #define XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA0 (1 << 1) |
| 127 | |
| 128 | #define XUSB_PADCTL_HSIC_PADX_CTL1(x) (0x304 + (x) * 0x20) |
| 129 | #define XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_SHIFT 0 |
| 130 | #define XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_MASK 0xf |
| 131 | |
| 132 | #define XUSB_PADCTL_HSIC_PADX_CTL2(x) (0x308 + (x) * 0x20) |
| 133 | #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT 8 |
| 134 | #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK 0xf |
| 135 | #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT 0 |
| 136 | #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK 0xff |
| 137 | |
| 138 | #define XUSB_PADCTL_HSIC_PAD_TRK_CTL 0x340 |
| 139 | #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_PD_TRK (1 << 19) |
| 140 | #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_SHIFT 12 |
| 141 | #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_MASK 0x7f |
| 142 | #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_VAL 0x0a |
| 143 | #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_SHIFT 5 |
| 144 | #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_MASK 0x7f |
| 145 | #define XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_VAL 0x1e |
| 146 | |
| 147 | #define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL 0x344 |
| 148 | |
| 149 | #define XUSB_PADCTL_UPHY_PLL_P0_CTL1 0x360 |
| 150 | #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT 20 |
| 151 | #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_MASK 0xff |
| 152 | #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_USB_VAL 0x19 |
| 153 | #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SATA_VAL 0x1e |
| 154 | #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_SHIFT 16 |
| 155 | #define XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_MASK 0x3 |
| 156 | #define XUSB_PADCTL_UPHY_PLL_CTL1_LOCKDET_STATUS (1 << 15) |
| 157 | #define XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD (1 << 4) |
| 158 | #define XUSB_PADCTL_UPHY_PLL_CTL1_ENABLE (1 << 3) |
| 159 | #define XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_SHIFT 1 |
| 160 | #define XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_MASK 0x3 |
| 161 | #define XUSB_PADCTL_UPHY_PLL_CTL1_IDDQ (1 << 0) |
| 162 | |
| 163 | #define XUSB_PADCTL_UPHY_PLL_P0_CTL2 0x364 |
| 164 | #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT 4 |
| 165 | #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_MASK 0xffffff |
| 166 | #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_VAL 0x136 |
| 167 | #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD (1 << 2) |
| 168 | #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE (1 << 1) |
| 169 | #define XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN (1 << 0) |
| 170 | |
| 171 | #define XUSB_PADCTL_UPHY_PLL_P0_CTL4 0x36c |
| 172 | #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_EN (1 << 15) |
| 173 | #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT 12 |
| 174 | #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_MASK 0x3 |
| 175 | #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_USB_VAL 0x2 |
| 176 | #define XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SATA_VAL 0x0 |
| 177 | #define XUSB_PADCTL_UPHY_PLL_CTL4_REFCLKBUF_EN (1 << 8) |
| 178 | #define XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_SHIFT 4 |
| 179 | #define XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_MASK 0xf |
| 180 | |
| 181 | #define XUSB_PADCTL_UPHY_PLL_P0_CTL5 0x370 |
| 182 | #define XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT 16 |
| 183 | #define XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_MASK 0xff |
| 184 | #define XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_VAL 0x2a |
| 185 | |
| 186 | #define XUSB_PADCTL_UPHY_PLL_P0_CTL8 0x37c |
| 187 | #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE (1 << 31) |
| 188 | #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD (1 << 15) |
| 189 | #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN (1 << 13) |
| 190 | #define XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN (1 << 12) |
| 191 | |
| 192 | #define XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL1(x) (0x460 + (x) * 0x40) |
| 193 | #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_SHIFT 20 |
| 194 | #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_MASK 0x3 |
| 195 | #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_VAL 0x1 |
| 196 | #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_TERM_EN BIT(18) |
| 197 | #define XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_MODE_OVRD BIT(13) |
| 198 | |
| 199 | #define XUSB_PADCTL_UPHY_PLL_S0_CTL1 0x860 |
| 200 | |
| 201 | #define XUSB_PADCTL_UPHY_PLL_S0_CTL2 0x864 |
| 202 | |
| 203 | #define XUSB_PADCTL_UPHY_PLL_S0_CTL4 0x86c |
| 204 | |
| 205 | #define XUSB_PADCTL_UPHY_PLL_S0_CTL5 0x870 |
| 206 | |
| 207 | #define XUSB_PADCTL_UPHY_PLL_S0_CTL8 0x87c |
| 208 | |
| 209 | #define XUSB_PADCTL_UPHY_MISC_PAD_S0_CTL1 0x960 |
| 210 | |
| 211 | #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL1(x) (0xa60 + (x) * 0x40) |
| 212 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_SHIFT 16 |
| 213 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_MASK 0x3 |
| 214 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_VAL 0x2 |
| 215 | |
| 216 | #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL2(x) (0xa64 + (x) * 0x40) |
| 217 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_SHIFT 0 |
| 218 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_MASK 0xffff |
| 219 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_VAL 0x00fc |
| 220 | |
| 221 | #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL3(x) (0xa68 + (x) * 0x40) |
| 222 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL3_RX_DFE_VAL 0xc0077f1f |
| 223 | |
| 224 | #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL4(x) (0xa6c + (x) * 0x40) |
| 225 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_SHIFT 16 |
| 226 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_MASK 0xffff |
| 227 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_VAL 0x01c7 |
| 228 | |
| 229 | #define XUSB_PADCTL_UPHY_USB3_PADX_ECTL6(x) (0xa74 + (x) * 0x40) |
| 230 | #define XUSB_PADCTL_UPHY_USB3_PAD_ECTL6_RX_EQ_CTRL_H_VAL 0xfcf01368 |
| 231 | |
| 232 | struct tegra210_xusb_fuse_calibration { |
| 233 | u32 hs_curr_level[4]; |
| 234 | u32 hs_term_range_adj; |
| 235 | u32 rpd_ctrl; |
| 236 | }; |
| 237 | |
| 238 | struct tegra210_xusb_padctl { |
| 239 | struct tegra_xusb_padctl base; |
| 240 | |
| 241 | struct tegra210_xusb_fuse_calibration fuse; |
| 242 | }; |
| 243 | |
| 244 | static inline struct tegra210_xusb_padctl * |
| 245 | to_tegra210_xusb_padctl(struct tegra_xusb_padctl *padctl) |
| 246 | { |
| 247 | return container_of(padctl, struct tegra210_xusb_padctl, base); |
| 248 | } |
| 249 | |
| 250 | /* must be called under padctl->lock */ |
| 251 | static int tegra210_pex_uphy_enable(struct tegra_xusb_padctl *padctl) |
| 252 | { |
| 253 | struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(padctl->pcie); |
| 254 | unsigned long timeout; |
| 255 | u32 value; |
| 256 | int err; |
| 257 | |
| 258 | if (pcie->enable > 0) { |
| 259 | pcie->enable++; |
| 260 | return 0; |
| 261 | } |
| 262 | |
| 263 | err = clk_prepare_enable(pcie->pll); |
| 264 | if (err < 0) |
| 265 | return err; |
| 266 | |
| 267 | err = reset_control_deassert(pcie->rst); |
| 268 | if (err < 0) |
| 269 | goto disable; |
| 270 | |
| 271 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 272 | value &= ~(XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_MASK << |
| 273 | XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT); |
| 274 | value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_VAL << |
| 275 | XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT; |
| 276 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 277 | |
| 278 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL5); |
| 279 | value &= ~(XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_MASK << |
| 280 | XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT); |
| 281 | value |= XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_VAL << |
| 282 | XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT; |
| 283 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL5); |
| 284 | |
| 285 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 286 | value |= XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; |
| 287 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 288 | |
| 289 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 290 | value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; |
| 291 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 292 | |
| 293 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 294 | value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; |
| 295 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 296 | |
| 297 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL4); |
| 298 | value &= ~((XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_MASK << |
| 299 | XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT) | |
| 300 | (XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_MASK << |
| 301 | XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_SHIFT)); |
| 302 | value |= (XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_USB_VAL << |
| 303 | XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT) | |
| 304 | XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_EN; |
| 305 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL4); |
| 306 | |
| 307 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 308 | value &= ~((XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_MASK << |
| 309 | XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_SHIFT) | |
| 310 | (XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_MASK << |
| 311 | XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT)); |
| 312 | value |= XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_USB_VAL << |
| 313 | XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT; |
| 314 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 315 | |
| 316 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 317 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_IDDQ; |
| 318 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 319 | |
| 320 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 321 | value &= ~(XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_MASK << |
| 322 | XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_SHIFT); |
| 323 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 324 | |
| 325 | usleep_range(10, 20); |
| 326 | |
| 327 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL4); |
| 328 | value |= XUSB_PADCTL_UPHY_PLL_CTL4_REFCLKBUF_EN; |
| 329 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL4); |
| 330 | |
| 331 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 332 | value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; |
| 333 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 334 | |
| 335 | timeout = jiffies + msecs_to_jiffies(100); |
| 336 | |
| 337 | while (time_before(jiffies, timeout)) { |
| 338 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 339 | if (value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE) |
| 340 | break; |
| 341 | |
| 342 | usleep_range(10, 20); |
| 343 | } |
| 344 | |
| 345 | if (time_after_eq(jiffies, timeout)) { |
| 346 | err = -ETIMEDOUT; |
| 347 | goto reset; |
| 348 | } |
| 349 | |
| 350 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 351 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; |
| 352 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 353 | |
| 354 | timeout = jiffies + msecs_to_jiffies(100); |
| 355 | |
| 356 | while (time_before(jiffies, timeout)) { |
| 357 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 358 | if (!(value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE)) |
| 359 | break; |
| 360 | |
| 361 | usleep_range(10, 20); |
| 362 | } |
| 363 | |
| 364 | if (time_after_eq(jiffies, timeout)) { |
| 365 | err = -ETIMEDOUT; |
| 366 | goto reset; |
| 367 | } |
| 368 | |
| 369 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 370 | value |= XUSB_PADCTL_UPHY_PLL_CTL1_ENABLE; |
| 371 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 372 | |
| 373 | timeout = jiffies + msecs_to_jiffies(100); |
| 374 | |
| 375 | while (time_before(jiffies, timeout)) { |
| 376 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 377 | if (value & XUSB_PADCTL_UPHY_PLL_CTL1_LOCKDET_STATUS) |
| 378 | break; |
| 379 | |
| 380 | usleep_range(10, 20); |
| 381 | } |
| 382 | |
| 383 | if (time_after_eq(jiffies, timeout)) { |
| 384 | err = -ETIMEDOUT; |
| 385 | goto reset; |
| 386 | } |
| 387 | |
| 388 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 389 | value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN | |
| 390 | XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; |
| 391 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 392 | |
| 393 | timeout = jiffies + msecs_to_jiffies(100); |
| 394 | |
| 395 | while (time_before(jiffies, timeout)) { |
| 396 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 397 | if (value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE) |
| 398 | break; |
| 399 | |
| 400 | usleep_range(10, 20); |
| 401 | } |
| 402 | |
| 403 | if (time_after_eq(jiffies, timeout)) { |
| 404 | err = -ETIMEDOUT; |
| 405 | goto reset; |
| 406 | } |
| 407 | |
| 408 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 409 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN; |
| 410 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 411 | |
| 412 | timeout = jiffies + msecs_to_jiffies(100); |
| 413 | |
| 414 | while (time_before(jiffies, timeout)) { |
| 415 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 416 | if (!(value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE)) |
| 417 | break; |
| 418 | |
| 419 | usleep_range(10, 20); |
| 420 | } |
| 421 | |
| 422 | if (time_after_eq(jiffies, timeout)) { |
| 423 | err = -ETIMEDOUT; |
| 424 | goto reset; |
| 425 | } |
| 426 | |
| 427 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 428 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; |
| 429 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 430 | |
| 431 | tegra210_xusb_pll_hw_control_enable(); |
| 432 | |
| 433 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 434 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; |
| 435 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL1); |
| 436 | |
| 437 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 438 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; |
| 439 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL2); |
| 440 | |
| 441 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 442 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; |
| 443 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_P0_CTL8); |
| 444 | |
| 445 | usleep_range(10, 20); |
| 446 | |
| 447 | tegra210_xusb_pll_hw_sequence_start(); |
| 448 | |
| 449 | pcie->enable++; |
| 450 | |
| 451 | return 0; |
| 452 | |
| 453 | reset: |
| 454 | reset_control_assert(pcie->rst); |
| 455 | disable: |
| 456 | clk_disable_unprepare(pcie->pll); |
| 457 | return err; |
| 458 | } |
| 459 | |
| 460 | static void tegra210_pex_uphy_disable(struct tegra_xusb_padctl *padctl) |
| 461 | { |
| 462 | struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(padctl->pcie); |
| 463 | |
| 464 | mutex_lock(&padctl->lock); |
| 465 | |
| 466 | if (WARN_ON(pcie->enable == 0)) |
| 467 | goto unlock; |
| 468 | |
| 469 | if (--pcie->enable > 0) |
| 470 | goto unlock; |
| 471 | |
| 472 | reset_control_assert(pcie->rst); |
| 473 | clk_disable_unprepare(pcie->pll); |
| 474 | |
| 475 | unlock: |
| 476 | mutex_unlock(&padctl->lock); |
| 477 | } |
| 478 | |
| 479 | /* must be called under padctl->lock */ |
| 480 | static int tegra210_sata_uphy_enable(struct tegra_xusb_padctl *padctl, bool usb) |
| 481 | { |
| 482 | struct tegra_xusb_sata_pad *sata = to_sata_pad(padctl->sata); |
| 483 | unsigned long timeout; |
| 484 | u32 value; |
| 485 | int err; |
| 486 | |
| 487 | if (sata->enable > 0) { |
| 488 | sata->enable++; |
| 489 | return 0; |
| 490 | } |
| 491 | |
| 492 | err = clk_prepare_enable(sata->pll); |
| 493 | if (err < 0) |
| 494 | return err; |
| 495 | |
| 496 | err = reset_control_deassert(sata->rst); |
| 497 | if (err < 0) |
| 498 | goto disable; |
| 499 | |
| 500 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 501 | value &= ~(XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_MASK << |
| 502 | XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT); |
| 503 | value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_VAL << |
| 504 | XUSB_PADCTL_UPHY_PLL_CTL2_CAL_CTRL_SHIFT; |
| 505 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 506 | |
| 507 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL5); |
| 508 | value &= ~(XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_MASK << |
| 509 | XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT); |
| 510 | value |= XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_VAL << |
| 511 | XUSB_PADCTL_UPHY_PLL_CTL5_DCO_CTRL_SHIFT; |
| 512 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL5); |
| 513 | |
| 514 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 515 | value |= XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; |
| 516 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 517 | |
| 518 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 519 | value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; |
| 520 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 521 | |
| 522 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 523 | value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; |
| 524 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 525 | |
| 526 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL4); |
| 527 | value &= ~((XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_MASK << |
| 528 | XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT) | |
| 529 | (XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_MASK << |
| 530 | XUSB_PADCTL_UPHY_PLL_CTL4_REFCLK_SEL_SHIFT)); |
| 531 | value |= XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_EN; |
| 532 | |
| 533 | if (usb) |
| 534 | value |= (XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_USB_VAL << |
| 535 | XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT); |
| 536 | else |
| 537 | value |= (XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SATA_VAL << |
| 538 | XUSB_PADCTL_UPHY_PLL_CTL4_TXCLKREF_SEL_SHIFT); |
| 539 | |
| 540 | /* XXX PLL0_XDIGCLK_EN */ |
| 541 | /* |
| 542 | value &= ~(1 << 19); |
| 543 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL4); |
| 544 | */ |
| 545 | |
| 546 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 547 | value &= ~((XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_MASK << |
| 548 | XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_MDIV_SHIFT) | |
| 549 | (XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_MASK << |
| 550 | XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT)); |
| 551 | |
| 552 | if (usb) |
| 553 | value |= XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_USB_VAL << |
| 554 | XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT; |
| 555 | else |
| 556 | value |= XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SATA_VAL << |
| 557 | XUSB_PADCTL_UPHY_PLL_CTL1_FREQ_NDIV_SHIFT; |
| 558 | |
| 559 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 560 | |
| 561 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 562 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_IDDQ; |
| 563 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 564 | |
| 565 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 566 | value &= ~(XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_MASK << |
| 567 | XUSB_PADCTL_UPHY_PLL_CTL1_SLEEP_SHIFT); |
| 568 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 569 | |
| 570 | usleep_range(10, 20); |
| 571 | |
| 572 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL4); |
| 573 | value |= XUSB_PADCTL_UPHY_PLL_CTL4_REFCLKBUF_EN; |
| 574 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL4); |
| 575 | |
| 576 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 577 | value |= XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; |
| 578 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 579 | |
| 580 | timeout = jiffies + msecs_to_jiffies(100); |
| 581 | |
| 582 | while (time_before(jiffies, timeout)) { |
| 583 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 584 | if (value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE) |
| 585 | break; |
| 586 | |
| 587 | usleep_range(10, 20); |
| 588 | } |
| 589 | |
| 590 | if (time_after_eq(jiffies, timeout)) { |
| 591 | err = -ETIMEDOUT; |
| 592 | goto reset; |
| 593 | } |
| 594 | |
| 595 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 596 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_EN; |
| 597 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 598 | |
| 599 | timeout = jiffies + msecs_to_jiffies(100); |
| 600 | |
| 601 | while (time_before(jiffies, timeout)) { |
| 602 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 603 | if (!(value & XUSB_PADCTL_UPHY_PLL_CTL2_CAL_DONE)) |
| 604 | break; |
| 605 | |
| 606 | usleep_range(10, 20); |
| 607 | } |
| 608 | |
| 609 | if (time_after_eq(jiffies, timeout)) { |
| 610 | err = -ETIMEDOUT; |
| 611 | goto reset; |
| 612 | } |
| 613 | |
| 614 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 615 | value |= XUSB_PADCTL_UPHY_PLL_CTL1_ENABLE; |
| 616 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 617 | |
| 618 | timeout = jiffies + msecs_to_jiffies(100); |
| 619 | |
| 620 | while (time_before(jiffies, timeout)) { |
| 621 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 622 | if (value & XUSB_PADCTL_UPHY_PLL_CTL1_LOCKDET_STATUS) |
| 623 | break; |
| 624 | |
| 625 | usleep_range(10, 20); |
| 626 | } |
| 627 | |
| 628 | if (time_after_eq(jiffies, timeout)) { |
| 629 | err = -ETIMEDOUT; |
| 630 | goto reset; |
| 631 | } |
| 632 | |
| 633 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 634 | value |= XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN | |
| 635 | XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; |
| 636 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 637 | |
| 638 | timeout = jiffies + msecs_to_jiffies(100); |
| 639 | |
| 640 | while (time_before(jiffies, timeout)) { |
| 641 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 642 | if (value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE) |
| 643 | break; |
| 644 | |
| 645 | usleep_range(10, 20); |
| 646 | } |
| 647 | |
| 648 | if (time_after_eq(jiffies, timeout)) { |
| 649 | err = -ETIMEDOUT; |
| 650 | goto reset; |
| 651 | } |
| 652 | |
| 653 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 654 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_EN; |
| 655 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 656 | |
| 657 | timeout = jiffies + msecs_to_jiffies(100); |
| 658 | |
| 659 | while (time_before(jiffies, timeout)) { |
| 660 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 661 | if (!(value & XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_DONE)) |
| 662 | break; |
| 663 | |
| 664 | usleep_range(10, 20); |
| 665 | } |
| 666 | |
| 667 | if (time_after_eq(jiffies, timeout)) { |
| 668 | err = -ETIMEDOUT; |
| 669 | goto reset; |
| 670 | } |
| 671 | |
| 672 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 673 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_CLK_EN; |
| 674 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 675 | |
| 676 | tegra210_sata_pll_hw_control_enable(); |
| 677 | |
| 678 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 679 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL1_PWR_OVRD; |
| 680 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL1); |
| 681 | |
| 682 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 683 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL2_CAL_OVRD; |
| 684 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL2); |
| 685 | |
| 686 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 687 | value &= ~XUSB_PADCTL_UPHY_PLL_CTL8_RCAL_OVRD; |
| 688 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_PLL_S0_CTL8); |
| 689 | |
| 690 | usleep_range(10, 20); |
| 691 | |
| 692 | tegra210_sata_pll_hw_sequence_start(); |
| 693 | |
| 694 | sata->enable++; |
| 695 | |
| 696 | return 0; |
| 697 | |
| 698 | reset: |
| 699 | reset_control_assert(sata->rst); |
| 700 | disable: |
| 701 | clk_disable_unprepare(sata->pll); |
| 702 | return err; |
| 703 | } |
| 704 | |
| 705 | static void tegra210_sata_uphy_disable(struct tegra_xusb_padctl *padctl) |
| 706 | { |
| 707 | struct tegra_xusb_sata_pad *sata = to_sata_pad(padctl->sata); |
| 708 | |
| 709 | mutex_lock(&padctl->lock); |
| 710 | |
| 711 | if (WARN_ON(sata->enable == 0)) |
| 712 | goto unlock; |
| 713 | |
| 714 | if (--sata->enable > 0) |
| 715 | goto unlock; |
| 716 | |
| 717 | reset_control_assert(sata->rst); |
| 718 | clk_disable_unprepare(sata->pll); |
| 719 | |
| 720 | unlock: |
| 721 | mutex_unlock(&padctl->lock); |
| 722 | } |
| 723 | |
| 724 | static int tegra210_xusb_padctl_enable(struct tegra_xusb_padctl *padctl) |
| 725 | { |
| 726 | u32 value; |
| 727 | |
| 728 | mutex_lock(&padctl->lock); |
| 729 | |
| 730 | if (padctl->enable++ > 0) |
| 731 | goto out; |
| 732 | |
| 733 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 734 | value &= ~XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN; |
| 735 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 736 | |
| 737 | usleep_range(100, 200); |
| 738 | |
| 739 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 740 | value &= ~XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY; |
| 741 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 742 | |
| 743 | usleep_range(100, 200); |
| 744 | |
| 745 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 746 | value &= ~XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN; |
| 747 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 748 | |
| 749 | out: |
| 750 | mutex_unlock(&padctl->lock); |
| 751 | return 0; |
| 752 | } |
| 753 | |
| 754 | static int tegra210_xusb_padctl_disable(struct tegra_xusb_padctl *padctl) |
| 755 | { |
| 756 | u32 value; |
| 757 | |
| 758 | mutex_lock(&padctl->lock); |
| 759 | |
| 760 | if (WARN_ON(padctl->enable == 0)) |
| 761 | goto out; |
| 762 | |
| 763 | if (--padctl->enable > 0) |
| 764 | goto out; |
| 765 | |
| 766 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 767 | value |= XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_VCORE_DOWN; |
| 768 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 769 | |
| 770 | usleep_range(100, 200); |
| 771 | |
| 772 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 773 | value |= XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN_EARLY; |
| 774 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 775 | |
| 776 | usleep_range(100, 200); |
| 777 | |
| 778 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 779 | value |= XUSB_PADCTL_ELPG_PROGRAM1_AUX_MUX_LP0_CLAMP_EN; |
| 780 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 781 | |
| 782 | out: |
| 783 | mutex_unlock(&padctl->lock); |
| 784 | return 0; |
| 785 | } |
| 786 | |
| 787 | static int tegra210_hsic_set_idle(struct tegra_xusb_padctl *padctl, |
| 788 | unsigned int index, bool idle) |
| 789 | { |
| 790 | u32 value; |
| 791 | |
| 792 | value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| 793 | |
| 794 | value &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA0 | |
| 795 | XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA1 | |
| 796 | XUSB_PADCTL_HSIC_PAD_CTL0_RPD_STROBE); |
| 797 | |
| 798 | if (idle) |
| 799 | value |= XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 | |
| 800 | XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 | |
| 801 | XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE; |
| 802 | else |
| 803 | value &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 | |
| 804 | XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 | |
| 805 | XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE); |
| 806 | |
| 807 | padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| 808 | |
| 809 | return 0; |
| 810 | } |
| 811 | |
| 812 | static int tegra210_usb3_set_lfps_detect(struct tegra_xusb_padctl *padctl, |
| 813 | unsigned int index, bool enable) |
| 814 | { |
| 815 | struct tegra_xusb_port *port; |
| 816 | struct tegra_xusb_lane *lane; |
| 817 | u32 value, offset; |
| 818 | |
| 819 | port = tegra_xusb_find_port(padctl, "usb3", index); |
| 820 | if (!port) |
| 821 | return -ENODEV; |
| 822 | |
| 823 | lane = port->lane; |
| 824 | |
| 825 | if (lane->pad == padctl->pcie) |
| 826 | offset = XUSB_PADCTL_UPHY_MISC_PAD_PX_CTL1(lane->index); |
| 827 | else |
| 828 | offset = XUSB_PADCTL_UPHY_MISC_PAD_S0_CTL1; |
| 829 | |
| 830 | value = padctl_readl(padctl, offset); |
| 831 | |
| 832 | value &= ~((XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_MASK << |
| 833 | XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_SHIFT) | |
| 834 | XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_TERM_EN | |
| 835 | XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_MODE_OVRD); |
| 836 | |
| 837 | if (!enable) { |
| 838 | value |= (XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_VAL << |
| 839 | XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_IDLE_MODE_SHIFT) | |
| 840 | XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_TERM_EN | |
| 841 | XUSB_PADCTL_UPHY_MISC_PAD_CTL1_AUX_RX_MODE_OVRD; |
| 842 | } |
| 843 | |
| 844 | padctl_writel(padctl, value, offset); |
| 845 | |
| 846 | return 0; |
| 847 | } |
| 848 | |
| 849 | #define TEGRA210_LANE(_name, _offset, _shift, _mask, _type) \ |
| 850 | { \ |
| 851 | .name = _name, \ |
| 852 | .offset = _offset, \ |
| 853 | .shift = _shift, \ |
| 854 | .mask = _mask, \ |
| 855 | .num_funcs = ARRAY_SIZE(tegra210_##_type##_functions), \ |
| 856 | .funcs = tegra210_##_type##_functions, \ |
| 857 | } |
| 858 | |
| 859 | static const char *tegra210_usb2_functions[] = { |
| 860 | "snps", |
| 861 | "xusb", |
| 862 | "uart" |
| 863 | }; |
| 864 | |
| 865 | static const struct tegra_xusb_lane_soc tegra210_usb2_lanes[] = { |
| 866 | TEGRA210_LANE("usb2-0", 0x004, 0, 0x3, usb2), |
| 867 | TEGRA210_LANE("usb2-1", 0x004, 2, 0x3, usb2), |
| 868 | TEGRA210_LANE("usb2-2", 0x004, 4, 0x3, usb2), |
| 869 | TEGRA210_LANE("usb2-3", 0x004, 6, 0x3, usb2), |
| 870 | }; |
| 871 | |
| 872 | static struct tegra_xusb_lane * |
| 873 | tegra210_usb2_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, |
| 874 | unsigned int index) |
| 875 | { |
| 876 | struct tegra_xusb_usb2_lane *usb2; |
| 877 | int err; |
| 878 | |
| 879 | usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL); |
| 880 | if (!usb2) |
| 881 | return ERR_PTR(-ENOMEM); |
| 882 | |
| 883 | INIT_LIST_HEAD(&usb2->base.list); |
| 884 | usb2->base.soc = &pad->soc->lanes[index]; |
| 885 | usb2->base.index = index; |
| 886 | usb2->base.pad = pad; |
| 887 | usb2->base.np = np; |
| 888 | |
| 889 | err = tegra_xusb_lane_parse_dt(&usb2->base, np); |
| 890 | if (err < 0) { |
| 891 | kfree(usb2); |
| 892 | return ERR_PTR(err); |
| 893 | } |
| 894 | |
| 895 | return &usb2->base; |
| 896 | } |
| 897 | |
| 898 | static void tegra210_usb2_lane_remove(struct tegra_xusb_lane *lane) |
| 899 | { |
| 900 | struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane); |
| 901 | |
| 902 | kfree(usb2); |
| 903 | } |
| 904 | |
| 905 | static const struct tegra_xusb_lane_ops tegra210_usb2_lane_ops = { |
| 906 | .probe = tegra210_usb2_lane_probe, |
| 907 | .remove = tegra210_usb2_lane_remove, |
| 908 | }; |
| 909 | |
| 910 | static int tegra210_usb2_phy_init(struct phy *phy) |
| 911 | { |
| 912 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 913 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 914 | u32 value; |
| 915 | |
| 916 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_PAD_MUX); |
| 917 | value &= ~(XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_MASK << |
| 918 | XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_SHIFT); |
| 919 | value |= XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_XUSB << |
| 920 | XUSB_PADCTL_USB2_PAD_MUX_USB2_BIAS_PAD_SHIFT; |
| 921 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_PAD_MUX); |
| 922 | |
| 923 | return tegra210_xusb_padctl_enable(padctl); |
| 924 | } |
| 925 | |
| 926 | static int tegra210_usb2_phy_exit(struct phy *phy) |
| 927 | { |
| 928 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 929 | |
| 930 | return tegra210_xusb_padctl_disable(lane->pad->padctl); |
| 931 | } |
| 932 | |
| 933 | static int tegra210_usb2_phy_power_on(struct phy *phy) |
| 934 | { |
| 935 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 936 | struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane); |
| 937 | struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad); |
| 938 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 939 | struct tegra210_xusb_padctl *priv; |
| 940 | struct tegra_xusb_usb2_port *port; |
| 941 | unsigned int index = lane->index; |
| 942 | u32 value; |
| 943 | int err; |
| 944 | |
| 945 | port = tegra_xusb_find_usb2_port(padctl, index); |
| 946 | if (!port) { |
| 947 | dev_err(&phy->dev, "no port found for USB2 lane %u\n", index); |
| 948 | return -ENODEV; |
| 949 | } |
| 950 | |
| 951 | priv = to_tegra210_xusb_padctl(padctl); |
| 952 | |
| 953 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| 954 | value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK << |
| 955 | XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) | |
| 956 | (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK << |
| 957 | XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT)); |
| 958 | value |= (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL << |
| 959 | XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT); |
| 960 | |
| 961 | if (tegra_sku_info.revision < TEGRA_REVISION_A02) |
| 962 | value |= |
| 963 | (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_VAL << |
| 964 | XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT); |
| 965 | |
| 966 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| 967 | |
| 968 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_PORT_CAP); |
| 969 | value &= ~XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_MASK(index); |
| 970 | value |= XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_HOST(index); |
| 971 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_PORT_CAP); |
| 972 | |
| 973 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); |
| 974 | value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK << |
| 975 | XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT) | |
| 976 | XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD | |
| 977 | XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 | |
| 978 | XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI); |
| 979 | value |= (priv->fuse.hs_curr_level[index] + |
| 980 | usb2->hs_curr_level_offset) << |
| 981 | XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT; |
| 982 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index)); |
| 983 | |
| 984 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); |
| 985 | value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK << |
| 986 | XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) | |
| 987 | (XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_MASK << |
| 988 | XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_SHIFT) | |
| 989 | XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR | |
| 990 | XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_OVRD | |
| 991 | XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_OVRD); |
| 992 | value |= (priv->fuse.hs_term_range_adj << |
| 993 | XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) | |
| 994 | (priv->fuse.rpd_ctrl << |
| 995 | XUSB_PADCTL_USB2_OTG_PAD_CTL1_RPD_CTRL_SHIFT); |
| 996 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index)); |
| 997 | |
| 998 | value = padctl_readl(padctl, |
| 999 | XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(index)); |
| 1000 | value &= ~(XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_MASK << |
| 1001 | XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_LEV_SHIFT); |
| 1002 | value |= XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPAD_CTL1_VREG_FIX18; |
| 1003 | padctl_writel(padctl, value, |
| 1004 | XUSB_PADCTL_USB2_BATTERY_CHRG_OTGPADX_CTL1(index)); |
| 1005 | |
| 1006 | err = regulator_enable(port->supply); |
| 1007 | if (err) |
| 1008 | return err; |
| 1009 | |
| 1010 | mutex_lock(&padctl->lock); |
| 1011 | |
| 1012 | if (pad->enable > 0) { |
| 1013 | pad->enable++; |
| 1014 | mutex_unlock(&padctl->lock); |
| 1015 | return 0; |
| 1016 | } |
| 1017 | |
| 1018 | err = clk_prepare_enable(pad->clk); |
| 1019 | if (err) |
| 1020 | goto disable_regulator; |
| 1021 | |
| 1022 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); |
| 1023 | value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_MASK << |
| 1024 | XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_SHIFT) | |
| 1025 | (XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_MASK << |
| 1026 | XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_SHIFT)); |
| 1027 | value |= (XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_VAL << |
| 1028 | XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_START_TIMER_SHIFT) | |
| 1029 | (XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_VAL << |
| 1030 | XUSB_PADCTL_USB2_BIAS_PAD_CTL1_TRK_DONE_RESET_TIMER_SHIFT); |
| 1031 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); |
| 1032 | |
| 1033 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| 1034 | value &= ~XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD; |
| 1035 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| 1036 | |
| 1037 | udelay(1); |
| 1038 | |
| 1039 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); |
| 1040 | value &= ~XUSB_PADCTL_USB2_BIAS_PAD_CTL1_PD_TRK; |
| 1041 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL1); |
| 1042 | |
| 1043 | udelay(50); |
| 1044 | |
| 1045 | clk_disable_unprepare(pad->clk); |
| 1046 | |
| 1047 | pad->enable++; |
| 1048 | mutex_unlock(&padctl->lock); |
| 1049 | |
| 1050 | return 0; |
| 1051 | |
| 1052 | disable_regulator: |
| 1053 | regulator_disable(port->supply); |
| 1054 | mutex_unlock(&padctl->lock); |
| 1055 | return err; |
| 1056 | } |
| 1057 | |
| 1058 | static int tegra210_usb2_phy_power_off(struct phy *phy) |
| 1059 | { |
| 1060 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1061 | struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad); |
| 1062 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 1063 | struct tegra_xusb_usb2_port *port; |
| 1064 | u32 value; |
| 1065 | |
| 1066 | port = tegra_xusb_find_usb2_port(padctl, lane->index); |
| 1067 | if (!port) { |
| 1068 | dev_err(&phy->dev, "no port found for USB2 lane %u\n", |
| 1069 | lane->index); |
| 1070 | return -ENODEV; |
| 1071 | } |
| 1072 | |
| 1073 | mutex_lock(&padctl->lock); |
| 1074 | |
| 1075 | if (WARN_ON(pad->enable == 0)) |
| 1076 | goto out; |
| 1077 | |
| 1078 | if (--pad->enable > 0) |
| 1079 | goto out; |
| 1080 | |
| 1081 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| 1082 | value |= XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD; |
| 1083 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0); |
| 1084 | |
| 1085 | out: |
| 1086 | regulator_disable(port->supply); |
| 1087 | mutex_unlock(&padctl->lock); |
| 1088 | return 0; |
| 1089 | } |
| 1090 | |
| 1091 | static const struct phy_ops tegra210_usb2_phy_ops = { |
| 1092 | .init = tegra210_usb2_phy_init, |
| 1093 | .exit = tegra210_usb2_phy_exit, |
| 1094 | .power_on = tegra210_usb2_phy_power_on, |
| 1095 | .power_off = tegra210_usb2_phy_power_off, |
| 1096 | .owner = THIS_MODULE, |
| 1097 | }; |
| 1098 | |
| 1099 | static struct tegra_xusb_pad * |
| 1100 | tegra210_usb2_pad_probe(struct tegra_xusb_padctl *padctl, |
| 1101 | const struct tegra_xusb_pad_soc *soc, |
| 1102 | struct device_node *np) |
| 1103 | { |
| 1104 | struct tegra_xusb_usb2_pad *usb2; |
| 1105 | struct tegra_xusb_pad *pad; |
| 1106 | int err; |
| 1107 | |
| 1108 | usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL); |
| 1109 | if (!usb2) |
| 1110 | return ERR_PTR(-ENOMEM); |
| 1111 | |
| 1112 | pad = &usb2->base; |
| 1113 | pad->ops = &tegra210_usb2_lane_ops; |
| 1114 | pad->soc = soc; |
| 1115 | |
| 1116 | err = tegra_xusb_pad_init(pad, padctl, np); |
| 1117 | if (err < 0) { |
| 1118 | kfree(usb2); |
| 1119 | goto out; |
| 1120 | } |
| 1121 | |
| 1122 | usb2->clk = devm_clk_get(&pad->dev, "trk"); |
| 1123 | if (IS_ERR(usb2->clk)) { |
| 1124 | err = PTR_ERR(usb2->clk); |
| 1125 | dev_err(&pad->dev, "failed to get trk clock: %d\n", err); |
| 1126 | goto unregister; |
| 1127 | } |
| 1128 | |
| 1129 | err = tegra_xusb_pad_register(pad, &tegra210_usb2_phy_ops); |
| 1130 | if (err < 0) |
| 1131 | goto unregister; |
| 1132 | |
| 1133 | dev_set_drvdata(&pad->dev, pad); |
| 1134 | |
| 1135 | return pad; |
| 1136 | |
| 1137 | unregister: |
| 1138 | device_unregister(&pad->dev); |
| 1139 | out: |
| 1140 | return ERR_PTR(err); |
| 1141 | } |
| 1142 | |
| 1143 | static void tegra210_usb2_pad_remove(struct tegra_xusb_pad *pad) |
| 1144 | { |
| 1145 | struct tegra_xusb_usb2_pad *usb2 = to_usb2_pad(pad); |
| 1146 | |
| 1147 | kfree(usb2); |
| 1148 | } |
| 1149 | |
| 1150 | static const struct tegra_xusb_pad_ops tegra210_usb2_ops = { |
| 1151 | .probe = tegra210_usb2_pad_probe, |
| 1152 | .remove = tegra210_usb2_pad_remove, |
| 1153 | }; |
| 1154 | |
| 1155 | static const struct tegra_xusb_pad_soc tegra210_usb2_pad = { |
| 1156 | .name = "usb2", |
| 1157 | .num_lanes = ARRAY_SIZE(tegra210_usb2_lanes), |
| 1158 | .lanes = tegra210_usb2_lanes, |
| 1159 | .ops = &tegra210_usb2_ops, |
| 1160 | }; |
| 1161 | |
| 1162 | static const char *tegra210_hsic_functions[] = { |
| 1163 | "snps", |
| 1164 | "xusb", |
| 1165 | }; |
| 1166 | |
| 1167 | static const struct tegra_xusb_lane_soc tegra210_hsic_lanes[] = { |
| 1168 | TEGRA210_LANE("hsic-0", 0x004, 14, 0x1, hsic), |
| 1169 | }; |
| 1170 | |
| 1171 | static struct tegra_xusb_lane * |
| 1172 | tegra210_hsic_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, |
| 1173 | unsigned int index) |
| 1174 | { |
| 1175 | struct tegra_xusb_hsic_lane *hsic; |
| 1176 | int err; |
| 1177 | |
| 1178 | hsic = kzalloc(sizeof(*hsic), GFP_KERNEL); |
| 1179 | if (!hsic) |
| 1180 | return ERR_PTR(-ENOMEM); |
| 1181 | |
| 1182 | INIT_LIST_HEAD(&hsic->base.list); |
| 1183 | hsic->base.soc = &pad->soc->lanes[index]; |
| 1184 | hsic->base.index = index; |
| 1185 | hsic->base.pad = pad; |
| 1186 | hsic->base.np = np; |
| 1187 | |
| 1188 | err = tegra_xusb_lane_parse_dt(&hsic->base, np); |
| 1189 | if (err < 0) { |
| 1190 | kfree(hsic); |
| 1191 | return ERR_PTR(err); |
| 1192 | } |
| 1193 | |
| 1194 | return &hsic->base; |
| 1195 | } |
| 1196 | |
| 1197 | static void tegra210_hsic_lane_remove(struct tegra_xusb_lane *lane) |
| 1198 | { |
| 1199 | struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane); |
| 1200 | |
| 1201 | kfree(hsic); |
| 1202 | } |
| 1203 | |
| 1204 | static const struct tegra_xusb_lane_ops tegra210_hsic_lane_ops = { |
| 1205 | .probe = tegra210_hsic_lane_probe, |
| 1206 | .remove = tegra210_hsic_lane_remove, |
| 1207 | }; |
| 1208 | |
| 1209 | static int tegra210_hsic_phy_init(struct phy *phy) |
| 1210 | { |
| 1211 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1212 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 1213 | u32 value; |
| 1214 | |
| 1215 | value = padctl_readl(padctl, XUSB_PADCTL_USB2_PAD_MUX); |
| 1216 | value &= ~(XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_MASK << |
| 1217 | XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_SHIFT); |
| 1218 | value |= XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_XUSB << |
| 1219 | XUSB_PADCTL_USB2_PAD_MUX_HSIC_PAD_TRK_SHIFT; |
| 1220 | padctl_writel(padctl, value, XUSB_PADCTL_USB2_PAD_MUX); |
| 1221 | |
| 1222 | return tegra210_xusb_padctl_enable(padctl); |
| 1223 | } |
| 1224 | |
| 1225 | static int tegra210_hsic_phy_exit(struct phy *phy) |
| 1226 | { |
| 1227 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1228 | |
| 1229 | return tegra210_xusb_padctl_disable(lane->pad->padctl); |
| 1230 | } |
| 1231 | |
| 1232 | static int tegra210_hsic_phy_power_on(struct phy *phy) |
| 1233 | { |
| 1234 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1235 | struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane); |
| 1236 | struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad); |
| 1237 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 1238 | struct tegra210_xusb_padctl *priv; |
| 1239 | unsigned int index = lane->index; |
| 1240 | u32 value; |
| 1241 | int err; |
| 1242 | |
| 1243 | priv = to_tegra210_xusb_padctl(padctl); |
| 1244 | |
| 1245 | err = regulator_enable(pad->supply); |
| 1246 | if (err) |
| 1247 | return err; |
| 1248 | |
| 1249 | padctl_writel(padctl, hsic->strobe_trim, |
| 1250 | XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL); |
| 1251 | |
| 1252 | value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index)); |
| 1253 | value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_MASK << |
| 1254 | XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_SHIFT); |
| 1255 | value |= (hsic->tx_rtune_p << |
| 1256 | XUSB_PADCTL_HSIC_PAD_CTL1_TX_RTUNEP_SHIFT); |
| 1257 | padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index)); |
| 1258 | |
| 1259 | value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL2(index)); |
| 1260 | value &= ~((XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK << |
| 1261 | XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) | |
| 1262 | (XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK << |
| 1263 | XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT)); |
| 1264 | value |= (hsic->rx_strobe_trim << |
| 1265 | XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) | |
| 1266 | (hsic->rx_data_trim << |
| 1267 | XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT); |
| 1268 | padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL2(index)); |
| 1269 | |
| 1270 | value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| 1271 | value &= ~(XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA0 | |
| 1272 | XUSB_PADCTL_HSIC_PAD_CTL0_RPU_DATA1 | |
| 1273 | XUSB_PADCTL_HSIC_PAD_CTL0_RPU_STROBE | |
| 1274 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA0 | |
| 1275 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA1 | |
| 1276 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_STROBE | |
| 1277 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA0 | |
| 1278 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA1 | |
| 1279 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_STROBE | |
| 1280 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA0 | |
| 1281 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA1 | |
| 1282 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_STROBE); |
| 1283 | value |= XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA0 | |
| 1284 | XUSB_PADCTL_HSIC_PAD_CTL0_RPD_DATA1 | |
| 1285 | XUSB_PADCTL_HSIC_PAD_CTL0_RPD_STROBE; |
| 1286 | padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| 1287 | |
| 1288 | err = clk_prepare_enable(pad->clk); |
| 1289 | if (err) |
| 1290 | goto disable; |
| 1291 | |
| 1292 | value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PAD_TRK_CTL); |
| 1293 | value &= ~((XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_MASK << |
| 1294 | XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_SHIFT) | |
| 1295 | (XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_MASK << |
| 1296 | XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_SHIFT)); |
| 1297 | value |= (XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_VAL << |
| 1298 | XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_START_TIMER_SHIFT) | |
| 1299 | (XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_VAL << |
| 1300 | XUSB_PADCTL_HSIC_PAD_TRK_CTL_TRK_DONE_RESET_TIMER_SHIFT); |
| 1301 | padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PAD_TRK_CTL); |
| 1302 | |
| 1303 | udelay(1); |
| 1304 | |
| 1305 | value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PAD_TRK_CTL); |
| 1306 | value &= ~XUSB_PADCTL_HSIC_PAD_TRK_CTL_PD_TRK; |
| 1307 | padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PAD_TRK_CTL); |
| 1308 | |
| 1309 | udelay(50); |
| 1310 | |
| 1311 | clk_disable_unprepare(pad->clk); |
| 1312 | |
| 1313 | return 0; |
| 1314 | |
| 1315 | disable: |
| 1316 | regulator_disable(pad->supply); |
| 1317 | return err; |
| 1318 | } |
| 1319 | |
| 1320 | static int tegra210_hsic_phy_power_off(struct phy *phy) |
| 1321 | { |
| 1322 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1323 | struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad); |
| 1324 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 1325 | unsigned int index = lane->index; |
| 1326 | u32 value; |
| 1327 | |
| 1328 | value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index)); |
| 1329 | value |= XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA0 | |
| 1330 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_DATA1 | |
| 1331 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_RX_STROBE | |
| 1332 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA0 | |
| 1333 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_DATA1 | |
| 1334 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_ZI_STROBE | |
| 1335 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA0 | |
| 1336 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_DATA1 | |
| 1337 | XUSB_PADCTL_HSIC_PAD_CTL0_PD_TX_STROBE; |
| 1338 | padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index)); |
| 1339 | |
| 1340 | regulator_disable(pad->supply); |
| 1341 | |
| 1342 | return 0; |
| 1343 | } |
| 1344 | |
| 1345 | static const struct phy_ops tegra210_hsic_phy_ops = { |
| 1346 | .init = tegra210_hsic_phy_init, |
| 1347 | .exit = tegra210_hsic_phy_exit, |
| 1348 | .power_on = tegra210_hsic_phy_power_on, |
| 1349 | .power_off = tegra210_hsic_phy_power_off, |
| 1350 | .owner = THIS_MODULE, |
| 1351 | }; |
| 1352 | |
| 1353 | static struct tegra_xusb_pad * |
| 1354 | tegra210_hsic_pad_probe(struct tegra_xusb_padctl *padctl, |
| 1355 | const struct tegra_xusb_pad_soc *soc, |
| 1356 | struct device_node *np) |
| 1357 | { |
| 1358 | struct tegra_xusb_hsic_pad *hsic; |
| 1359 | struct tegra_xusb_pad *pad; |
| 1360 | int err; |
| 1361 | |
| 1362 | hsic = kzalloc(sizeof(*hsic), GFP_KERNEL); |
| 1363 | if (!hsic) |
| 1364 | return ERR_PTR(-ENOMEM); |
| 1365 | |
| 1366 | pad = &hsic->base; |
| 1367 | pad->ops = &tegra210_hsic_lane_ops; |
| 1368 | pad->soc = soc; |
| 1369 | |
| 1370 | err = tegra_xusb_pad_init(pad, padctl, np); |
| 1371 | if (err < 0) { |
| 1372 | kfree(hsic); |
| 1373 | goto out; |
| 1374 | } |
| 1375 | |
| 1376 | hsic->clk = devm_clk_get(&pad->dev, "trk"); |
| 1377 | if (IS_ERR(hsic->clk)) { |
| 1378 | err = PTR_ERR(hsic->clk); |
| 1379 | dev_err(&pad->dev, "failed to get trk clock: %d\n", err); |
| 1380 | goto unregister; |
| 1381 | } |
| 1382 | |
| 1383 | err = tegra_xusb_pad_register(pad, &tegra210_hsic_phy_ops); |
| 1384 | if (err < 0) |
| 1385 | goto unregister; |
| 1386 | |
| 1387 | dev_set_drvdata(&pad->dev, pad); |
| 1388 | |
| 1389 | return pad; |
| 1390 | |
| 1391 | unregister: |
| 1392 | device_unregister(&pad->dev); |
| 1393 | out: |
| 1394 | return ERR_PTR(err); |
| 1395 | } |
| 1396 | |
| 1397 | static void tegra210_hsic_pad_remove(struct tegra_xusb_pad *pad) |
| 1398 | { |
| 1399 | struct tegra_xusb_hsic_pad *hsic = to_hsic_pad(pad); |
| 1400 | |
| 1401 | kfree(hsic); |
| 1402 | } |
| 1403 | |
| 1404 | static const struct tegra_xusb_pad_ops tegra210_hsic_ops = { |
| 1405 | .probe = tegra210_hsic_pad_probe, |
| 1406 | .remove = tegra210_hsic_pad_remove, |
| 1407 | }; |
| 1408 | |
| 1409 | static const struct tegra_xusb_pad_soc tegra210_hsic_pad = { |
| 1410 | .name = "hsic", |
| 1411 | .num_lanes = ARRAY_SIZE(tegra210_hsic_lanes), |
| 1412 | .lanes = tegra210_hsic_lanes, |
| 1413 | .ops = &tegra210_hsic_ops, |
| 1414 | }; |
| 1415 | |
| 1416 | static const char *tegra210_pcie_functions[] = { |
| 1417 | "pcie-x1", |
| 1418 | "usb3-ss", |
| 1419 | "sata", |
| 1420 | "pcie-x4", |
| 1421 | }; |
| 1422 | |
| 1423 | static const struct tegra_xusb_lane_soc tegra210_pcie_lanes[] = { |
| 1424 | TEGRA210_LANE("pcie-0", 0x028, 12, 0x3, pcie), |
| 1425 | TEGRA210_LANE("pcie-1", 0x028, 14, 0x3, pcie), |
| 1426 | TEGRA210_LANE("pcie-2", 0x028, 16, 0x3, pcie), |
| 1427 | TEGRA210_LANE("pcie-3", 0x028, 18, 0x3, pcie), |
| 1428 | TEGRA210_LANE("pcie-4", 0x028, 20, 0x3, pcie), |
| 1429 | TEGRA210_LANE("pcie-5", 0x028, 22, 0x3, pcie), |
| 1430 | TEGRA210_LANE("pcie-6", 0x028, 24, 0x3, pcie), |
| 1431 | }; |
| 1432 | |
| 1433 | static struct tegra_xusb_lane * |
| 1434 | tegra210_pcie_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, |
| 1435 | unsigned int index) |
| 1436 | { |
| 1437 | struct tegra_xusb_pcie_lane *pcie; |
| 1438 | int err; |
| 1439 | |
| 1440 | pcie = kzalloc(sizeof(*pcie), GFP_KERNEL); |
| 1441 | if (!pcie) |
| 1442 | return ERR_PTR(-ENOMEM); |
| 1443 | |
| 1444 | INIT_LIST_HEAD(&pcie->base.list); |
| 1445 | pcie->base.soc = &pad->soc->lanes[index]; |
| 1446 | pcie->base.index = index; |
| 1447 | pcie->base.pad = pad; |
| 1448 | pcie->base.np = np; |
| 1449 | |
| 1450 | err = tegra_xusb_lane_parse_dt(&pcie->base, np); |
| 1451 | if (err < 0) { |
| 1452 | kfree(pcie); |
| 1453 | return ERR_PTR(err); |
| 1454 | } |
| 1455 | |
| 1456 | return &pcie->base; |
| 1457 | } |
| 1458 | |
| 1459 | static void tegra210_pcie_lane_remove(struct tegra_xusb_lane *lane) |
| 1460 | { |
| 1461 | struct tegra_xusb_pcie_lane *pcie = to_pcie_lane(lane); |
| 1462 | |
| 1463 | kfree(pcie); |
| 1464 | } |
| 1465 | |
| 1466 | static const struct tegra_xusb_lane_ops tegra210_pcie_lane_ops = { |
| 1467 | .probe = tegra210_pcie_lane_probe, |
| 1468 | .remove = tegra210_pcie_lane_remove, |
| 1469 | }; |
| 1470 | |
| 1471 | static int tegra210_pcie_phy_init(struct phy *phy) |
| 1472 | { |
| 1473 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1474 | |
| 1475 | return tegra210_xusb_padctl_enable(lane->pad->padctl); |
| 1476 | } |
| 1477 | |
| 1478 | static int tegra210_pcie_phy_exit(struct phy *phy) |
| 1479 | { |
| 1480 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1481 | |
| 1482 | return tegra210_xusb_padctl_disable(lane->pad->padctl); |
| 1483 | } |
| 1484 | |
| 1485 | static int tegra210_pcie_phy_power_on(struct phy *phy) |
| 1486 | { |
| 1487 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1488 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 1489 | u32 value; |
| 1490 | int err; |
| 1491 | |
| 1492 | mutex_lock(&padctl->lock); |
| 1493 | |
| 1494 | err = tegra210_pex_uphy_enable(padctl); |
| 1495 | if (err < 0) |
| 1496 | goto unlock; |
| 1497 | |
| 1498 | value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); |
| 1499 | value |= XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index); |
| 1500 | padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); |
| 1501 | |
| 1502 | unlock: |
| 1503 | mutex_unlock(&padctl->lock); |
| 1504 | return err; |
| 1505 | } |
| 1506 | |
| 1507 | static int tegra210_pcie_phy_power_off(struct phy *phy) |
| 1508 | { |
| 1509 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1510 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 1511 | u32 value; |
| 1512 | |
| 1513 | value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); |
| 1514 | value &= ~XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index); |
| 1515 | padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); |
| 1516 | |
| 1517 | tegra210_pex_uphy_disable(padctl); |
| 1518 | |
| 1519 | return 0; |
| 1520 | } |
| 1521 | |
| 1522 | static const struct phy_ops tegra210_pcie_phy_ops = { |
| 1523 | .init = tegra210_pcie_phy_init, |
| 1524 | .exit = tegra210_pcie_phy_exit, |
| 1525 | .power_on = tegra210_pcie_phy_power_on, |
| 1526 | .power_off = tegra210_pcie_phy_power_off, |
| 1527 | .owner = THIS_MODULE, |
| 1528 | }; |
| 1529 | |
| 1530 | static struct tegra_xusb_pad * |
| 1531 | tegra210_pcie_pad_probe(struct tegra_xusb_padctl *padctl, |
| 1532 | const struct tegra_xusb_pad_soc *soc, |
| 1533 | struct device_node *np) |
| 1534 | { |
| 1535 | struct tegra_xusb_pcie_pad *pcie; |
| 1536 | struct tegra_xusb_pad *pad; |
| 1537 | int err; |
| 1538 | |
| 1539 | pcie = kzalloc(sizeof(*pcie), GFP_KERNEL); |
| 1540 | if (!pcie) |
| 1541 | return ERR_PTR(-ENOMEM); |
| 1542 | |
| 1543 | pad = &pcie->base; |
| 1544 | pad->ops = &tegra210_pcie_lane_ops; |
| 1545 | pad->soc = soc; |
| 1546 | |
| 1547 | err = tegra_xusb_pad_init(pad, padctl, np); |
| 1548 | if (err < 0) { |
| 1549 | kfree(pcie); |
| 1550 | goto out; |
| 1551 | } |
| 1552 | |
| 1553 | pcie->pll = devm_clk_get(&pad->dev, "pll"); |
| 1554 | if (IS_ERR(pcie->pll)) { |
| 1555 | err = PTR_ERR(pcie->pll); |
| 1556 | dev_err(&pad->dev, "failed to get PLL: %d\n", err); |
| 1557 | goto unregister; |
| 1558 | } |
| 1559 | |
| 1560 | pcie->rst = devm_reset_control_get(&pad->dev, "phy"); |
| 1561 | if (IS_ERR(pcie->rst)) { |
| 1562 | err = PTR_ERR(pcie->rst); |
| 1563 | dev_err(&pad->dev, "failed to get PCIe pad reset: %d\n", err); |
| 1564 | goto unregister; |
| 1565 | } |
| 1566 | |
| 1567 | err = tegra_xusb_pad_register(pad, &tegra210_pcie_phy_ops); |
| 1568 | if (err < 0) |
| 1569 | goto unregister; |
| 1570 | |
| 1571 | dev_set_drvdata(&pad->dev, pad); |
| 1572 | |
| 1573 | return pad; |
| 1574 | |
| 1575 | unregister: |
| 1576 | device_unregister(&pad->dev); |
| 1577 | out: |
| 1578 | return ERR_PTR(err); |
| 1579 | } |
| 1580 | |
| 1581 | static void tegra210_pcie_pad_remove(struct tegra_xusb_pad *pad) |
| 1582 | { |
| 1583 | struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(pad); |
| 1584 | |
| 1585 | kfree(pcie); |
| 1586 | } |
| 1587 | |
| 1588 | static const struct tegra_xusb_pad_ops tegra210_pcie_ops = { |
| 1589 | .probe = tegra210_pcie_pad_probe, |
| 1590 | .remove = tegra210_pcie_pad_remove, |
| 1591 | }; |
| 1592 | |
| 1593 | static const struct tegra_xusb_pad_soc tegra210_pcie_pad = { |
| 1594 | .name = "pcie", |
| 1595 | .num_lanes = ARRAY_SIZE(tegra210_pcie_lanes), |
| 1596 | .lanes = tegra210_pcie_lanes, |
| 1597 | .ops = &tegra210_pcie_ops, |
| 1598 | }; |
| 1599 | |
| 1600 | static const struct tegra_xusb_lane_soc tegra210_sata_lanes[] = { |
| 1601 | TEGRA210_LANE("sata-0", 0x028, 30, 0x3, pcie), |
| 1602 | }; |
| 1603 | |
| 1604 | static struct tegra_xusb_lane * |
| 1605 | tegra210_sata_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np, |
| 1606 | unsigned int index) |
| 1607 | { |
| 1608 | struct tegra_xusb_sata_lane *sata; |
| 1609 | int err; |
| 1610 | |
| 1611 | sata = kzalloc(sizeof(*sata), GFP_KERNEL); |
| 1612 | if (!sata) |
| 1613 | return ERR_PTR(-ENOMEM); |
| 1614 | |
| 1615 | INIT_LIST_HEAD(&sata->base.list); |
| 1616 | sata->base.soc = &pad->soc->lanes[index]; |
| 1617 | sata->base.index = index; |
| 1618 | sata->base.pad = pad; |
| 1619 | sata->base.np = np; |
| 1620 | |
| 1621 | err = tegra_xusb_lane_parse_dt(&sata->base, np); |
| 1622 | if (err < 0) { |
| 1623 | kfree(sata); |
| 1624 | return ERR_PTR(err); |
| 1625 | } |
| 1626 | |
| 1627 | return &sata->base; |
| 1628 | } |
| 1629 | |
| 1630 | static void tegra210_sata_lane_remove(struct tegra_xusb_lane *lane) |
| 1631 | { |
| 1632 | struct tegra_xusb_sata_lane *sata = to_sata_lane(lane); |
| 1633 | |
| 1634 | kfree(sata); |
| 1635 | } |
| 1636 | |
| 1637 | static const struct tegra_xusb_lane_ops tegra210_sata_lane_ops = { |
| 1638 | .probe = tegra210_sata_lane_probe, |
| 1639 | .remove = tegra210_sata_lane_remove, |
| 1640 | }; |
| 1641 | |
| 1642 | static int tegra210_sata_phy_init(struct phy *phy) |
| 1643 | { |
| 1644 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1645 | |
| 1646 | return tegra210_xusb_padctl_enable(lane->pad->padctl); |
| 1647 | } |
| 1648 | |
| 1649 | static int tegra210_sata_phy_exit(struct phy *phy) |
| 1650 | { |
| 1651 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1652 | |
| 1653 | return tegra210_xusb_padctl_disable(lane->pad->padctl); |
| 1654 | } |
| 1655 | |
| 1656 | static int tegra210_sata_phy_power_on(struct phy *phy) |
| 1657 | { |
| 1658 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1659 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 1660 | u32 value; |
| 1661 | int err; |
| 1662 | |
| 1663 | mutex_lock(&padctl->lock); |
| 1664 | |
| 1665 | err = tegra210_sata_uphy_enable(padctl, false); |
| 1666 | if (err < 0) |
| 1667 | goto unlock; |
| 1668 | |
| 1669 | value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); |
| 1670 | value |= XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index); |
| 1671 | padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); |
| 1672 | |
| 1673 | unlock: |
| 1674 | mutex_unlock(&padctl->lock); |
| 1675 | return err; |
| 1676 | } |
| 1677 | |
| 1678 | static int tegra210_sata_phy_power_off(struct phy *phy) |
| 1679 | { |
| 1680 | struct tegra_xusb_lane *lane = phy_get_drvdata(phy); |
| 1681 | struct tegra_xusb_padctl *padctl = lane->pad->padctl; |
| 1682 | u32 value; |
| 1683 | |
| 1684 | value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX); |
| 1685 | value &= ~XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index); |
| 1686 | padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX); |
| 1687 | |
| 1688 | tegra210_sata_uphy_disable(lane->pad->padctl); |
| 1689 | |
| 1690 | return 0; |
| 1691 | } |
| 1692 | |
| 1693 | static const struct phy_ops tegra210_sata_phy_ops = { |
| 1694 | .init = tegra210_sata_phy_init, |
| 1695 | .exit = tegra210_sata_phy_exit, |
| 1696 | .power_on = tegra210_sata_phy_power_on, |
| 1697 | .power_off = tegra210_sata_phy_power_off, |
| 1698 | .owner = THIS_MODULE, |
| 1699 | }; |
| 1700 | |
| 1701 | static struct tegra_xusb_pad * |
| 1702 | tegra210_sata_pad_probe(struct tegra_xusb_padctl *padctl, |
| 1703 | const struct tegra_xusb_pad_soc *soc, |
| 1704 | struct device_node *np) |
| 1705 | { |
| 1706 | struct tegra_xusb_sata_pad *sata; |
| 1707 | struct tegra_xusb_pad *pad; |
| 1708 | int err; |
| 1709 | |
| 1710 | sata = kzalloc(sizeof(*sata), GFP_KERNEL); |
| 1711 | if (!sata) |
| 1712 | return ERR_PTR(-ENOMEM); |
| 1713 | |
| 1714 | pad = &sata->base; |
| 1715 | pad->ops = &tegra210_sata_lane_ops; |
| 1716 | pad->soc = soc; |
| 1717 | |
| 1718 | err = tegra_xusb_pad_init(pad, padctl, np); |
| 1719 | if (err < 0) { |
| 1720 | kfree(sata); |
| 1721 | goto out; |
| 1722 | } |
| 1723 | |
| 1724 | sata->rst = devm_reset_control_get(&pad->dev, "phy"); |
| 1725 | if (IS_ERR(sata->rst)) { |
| 1726 | err = PTR_ERR(sata->rst); |
| 1727 | dev_err(&pad->dev, "failed to get SATA pad reset: %d\n", err); |
| 1728 | goto unregister; |
| 1729 | } |
| 1730 | |
| 1731 | err = tegra_xusb_pad_register(pad, &tegra210_sata_phy_ops); |
| 1732 | if (err < 0) |
| 1733 | goto unregister; |
| 1734 | |
| 1735 | dev_set_drvdata(&pad->dev, pad); |
| 1736 | |
| 1737 | return pad; |
| 1738 | |
| 1739 | unregister: |
| 1740 | device_unregister(&pad->dev); |
| 1741 | out: |
| 1742 | return ERR_PTR(err); |
| 1743 | } |
| 1744 | |
| 1745 | static void tegra210_sata_pad_remove(struct tegra_xusb_pad *pad) |
| 1746 | { |
| 1747 | struct tegra_xusb_sata_pad *sata = to_sata_pad(pad); |
| 1748 | |
| 1749 | kfree(sata); |
| 1750 | } |
| 1751 | |
| 1752 | static const struct tegra_xusb_pad_ops tegra210_sata_ops = { |
| 1753 | .probe = tegra210_sata_pad_probe, |
| 1754 | .remove = tegra210_sata_pad_remove, |
| 1755 | }; |
| 1756 | |
| 1757 | static const struct tegra_xusb_pad_soc tegra210_sata_pad = { |
| 1758 | .name = "sata", |
| 1759 | .num_lanes = ARRAY_SIZE(tegra210_sata_lanes), |
| 1760 | .lanes = tegra210_sata_lanes, |
| 1761 | .ops = &tegra210_sata_ops, |
| 1762 | }; |
| 1763 | |
| 1764 | static const struct tegra_xusb_pad_soc * const tegra210_pads[] = { |
| 1765 | &tegra210_usb2_pad, |
| 1766 | &tegra210_hsic_pad, |
| 1767 | &tegra210_pcie_pad, |
| 1768 | &tegra210_sata_pad, |
| 1769 | }; |
| 1770 | |
| 1771 | static int tegra210_usb2_port_enable(struct tegra_xusb_port *port) |
| 1772 | { |
| 1773 | return 0; |
| 1774 | } |
| 1775 | |
| 1776 | static void tegra210_usb2_port_disable(struct tegra_xusb_port *port) |
| 1777 | { |
| 1778 | } |
| 1779 | |
| 1780 | static struct tegra_xusb_lane * |
| 1781 | tegra210_usb2_port_map(struct tegra_xusb_port *port) |
| 1782 | { |
| 1783 | return tegra_xusb_find_lane(port->padctl, "usb2", port->index); |
| 1784 | } |
| 1785 | |
| 1786 | static const struct tegra_xusb_port_ops tegra210_usb2_port_ops = { |
| 1787 | .enable = tegra210_usb2_port_enable, |
| 1788 | .disable = tegra210_usb2_port_disable, |
| 1789 | .map = tegra210_usb2_port_map, |
| 1790 | }; |
| 1791 | |
| 1792 | static int tegra210_hsic_port_enable(struct tegra_xusb_port *port) |
| 1793 | { |
| 1794 | return 0; |
| 1795 | } |
| 1796 | |
| 1797 | static void tegra210_hsic_port_disable(struct tegra_xusb_port *port) |
| 1798 | { |
| 1799 | } |
| 1800 | |
| 1801 | static struct tegra_xusb_lane * |
| 1802 | tegra210_hsic_port_map(struct tegra_xusb_port *port) |
| 1803 | { |
| 1804 | return tegra_xusb_find_lane(port->padctl, "hsic", port->index); |
| 1805 | } |
| 1806 | |
| 1807 | static const struct tegra_xusb_port_ops tegra210_hsic_port_ops = { |
| 1808 | .enable = tegra210_hsic_port_enable, |
| 1809 | .disable = tegra210_hsic_port_disable, |
| 1810 | .map = tegra210_hsic_port_map, |
| 1811 | }; |
| 1812 | |
| 1813 | static int tegra210_usb3_port_enable(struct tegra_xusb_port *port) |
| 1814 | { |
| 1815 | struct tegra_xusb_usb3_port *usb3 = to_usb3_port(port); |
| 1816 | struct tegra_xusb_padctl *padctl = port->padctl; |
| 1817 | struct tegra_xusb_lane *lane = usb3->base.lane; |
| 1818 | unsigned int index = port->index; |
| 1819 | u32 value; |
| 1820 | int err; |
| 1821 | |
| 1822 | value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP); |
| 1823 | |
| 1824 | if (!usb3->internal) |
| 1825 | value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index); |
| 1826 | else |
| 1827 | value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index); |
| 1828 | |
| 1829 | value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(index); |
| 1830 | value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(index, usb3->port); |
| 1831 | padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP); |
| 1832 | |
| 1833 | /* |
| 1834 | * TODO: move this code into the PCIe/SATA PHY ->power_on() callbacks |
| 1835 | * and conditionalize based on mux function? This seems to work, but |
| 1836 | * might not be the exact proper sequence. |
| 1837 | */ |
| 1838 | err = regulator_enable(usb3->supply); |
| 1839 | if (err < 0) |
| 1840 | return err; |
| 1841 | |
| 1842 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_USB3_PADX_ECTL1(index)); |
| 1843 | value &= ~(XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_MASK << |
| 1844 | XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_SHIFT); |
| 1845 | value |= XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_VAL << |
| 1846 | XUSB_PADCTL_UPHY_USB3_PAD_ECTL1_TX_TERM_CTRL_SHIFT; |
| 1847 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_USB3_PADX_ECTL1(index)); |
| 1848 | |
| 1849 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_USB3_PADX_ECTL2(index)); |
| 1850 | value &= ~(XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_MASK << |
| 1851 | XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_SHIFT); |
| 1852 | value |= XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_VAL << |
| 1853 | XUSB_PADCTL_UPHY_USB3_PAD_ECTL2_RX_CTLE_SHIFT; |
| 1854 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_USB3_PADX_ECTL2(index)); |
| 1855 | |
| 1856 | padctl_writel(padctl, XUSB_PADCTL_UPHY_USB3_PAD_ECTL3_RX_DFE_VAL, |
| 1857 | XUSB_PADCTL_UPHY_USB3_PADX_ECTL3(index)); |
| 1858 | |
| 1859 | value = padctl_readl(padctl, XUSB_PADCTL_UPHY_USB3_PADX_ECTL4(index)); |
| 1860 | value &= ~(XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_MASK << |
| 1861 | XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_SHIFT); |
| 1862 | value |= XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_VAL << |
| 1863 | XUSB_PADCTL_UPHY_USB3_PAD_ECTL4_RX_CDR_CTRL_SHIFT; |
| 1864 | padctl_writel(padctl, value, XUSB_PADCTL_UPHY_USB3_PADX_ECTL4(index)); |
| 1865 | |
| 1866 | padctl_writel(padctl, XUSB_PADCTL_UPHY_USB3_PAD_ECTL6_RX_EQ_CTRL_H_VAL, |
| 1867 | XUSB_PADCTL_UPHY_USB3_PADX_ECTL6(index)); |
| 1868 | |
| 1869 | if (lane->pad == padctl->sata) |
| 1870 | err = tegra210_sata_uphy_enable(padctl, true); |
| 1871 | else |
| 1872 | err = tegra210_pex_uphy_enable(padctl); |
| 1873 | |
| 1874 | if (err) { |
| 1875 | dev_err(&port->dev, "%s: failed to enable UPHY: %d\n", |
| 1876 | __func__, err); |
| 1877 | return err; |
| 1878 | } |
| 1879 | |
| 1880 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1881 | value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN(index); |
| 1882 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1883 | |
| 1884 | usleep_range(100, 200); |
| 1885 | |
| 1886 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1887 | value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(index); |
| 1888 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1889 | |
| 1890 | usleep_range(100, 200); |
| 1891 | |
| 1892 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1893 | value &= ~XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN(index); |
| 1894 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1895 | |
| 1896 | return 0; |
| 1897 | } |
| 1898 | |
| 1899 | static void tegra210_usb3_port_disable(struct tegra_xusb_port *port) |
| 1900 | { |
| 1901 | struct tegra_xusb_usb3_port *usb3 = to_usb3_port(port); |
| 1902 | struct tegra_xusb_padctl *padctl = port->padctl; |
| 1903 | struct tegra_xusb_lane *lane = port->lane; |
| 1904 | unsigned int index = port->index; |
| 1905 | u32 value; |
| 1906 | |
| 1907 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1908 | value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN_EARLY(index); |
| 1909 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1910 | |
| 1911 | usleep_range(100, 200); |
| 1912 | |
| 1913 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1914 | value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_CLAMP_EN(index); |
| 1915 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1916 | |
| 1917 | usleep_range(250, 350); |
| 1918 | |
| 1919 | value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1920 | value |= XUSB_PADCTL_ELPG_PROGRAM1_SSPX_ELPG_VCORE_DOWN(index); |
| 1921 | padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM1); |
| 1922 | |
| 1923 | if (lane->pad == padctl->sata) |
| 1924 | tegra210_sata_uphy_disable(padctl); |
| 1925 | else |
| 1926 | tegra210_pex_uphy_disable(padctl); |
| 1927 | |
| 1928 | regulator_disable(usb3->supply); |
| 1929 | |
| 1930 | value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP); |
| 1931 | value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(index); |
| 1932 | value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(index, 0x7); |
| 1933 | padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP); |
| 1934 | } |
| 1935 | |
| 1936 | static const struct tegra_xusb_lane_map tegra210_usb3_map[] = { |
| 1937 | { 0, "pcie", 6 }, |
| 1938 | { 1, "pcie", 5 }, |
| 1939 | { 2, "pcie", 0 }, |
| 1940 | { 2, "pcie", 3 }, |
| 1941 | { 3, "pcie", 4 }, |
| 1942 | { 3, "pcie", 4 }, |
| 1943 | { 0, NULL, 0 } |
| 1944 | }; |
| 1945 | |
| 1946 | static struct tegra_xusb_lane * |
| 1947 | tegra210_usb3_port_map(struct tegra_xusb_port *port) |
| 1948 | { |
| 1949 | return tegra_xusb_port_find_lane(port, tegra210_usb3_map, "usb3-ss"); |
| 1950 | } |
| 1951 | |
| 1952 | static const struct tegra_xusb_port_ops tegra210_usb3_port_ops = { |
| 1953 | .enable = tegra210_usb3_port_enable, |
| 1954 | .disable = tegra210_usb3_port_disable, |
| 1955 | .map = tegra210_usb3_port_map, |
| 1956 | }; |
| 1957 | |
| 1958 | static int |
| 1959 | tegra210_xusb_read_fuse_calibration(struct tegra210_xusb_fuse_calibration *fuse) |
| 1960 | { |
| 1961 | unsigned int i; |
| 1962 | u32 value; |
| 1963 | int err; |
| 1964 | |
| 1965 | err = tegra_fuse_readl(TEGRA_FUSE_SKU_CALIB_0, &value); |
| 1966 | if (err < 0) |
| 1967 | return err; |
| 1968 | |
| 1969 | for (i = 0; i < ARRAY_SIZE(fuse->hs_curr_level); i++) { |
| 1970 | fuse->hs_curr_level[i] = |
| 1971 | (value >> FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(i)) & |
| 1972 | FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK; |
| 1973 | } |
| 1974 | |
| 1975 | fuse->hs_term_range_adj = |
| 1976 | (value >> FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT) & |
| 1977 | FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK; |
| 1978 | |
| 1979 | err = tegra_fuse_readl(TEGRA_FUSE_USB_CALIB_EXT_0, &value); |
| 1980 | if (err < 0) |
| 1981 | return err; |
| 1982 | |
| 1983 | fuse->rpd_ctrl = |
| 1984 | (value >> FUSE_USB_CALIB_EXT_RPD_CTRL_SHIFT) & |
| 1985 | FUSE_USB_CALIB_EXT_RPD_CTRL_MASK; |
| 1986 | |
| 1987 | return 0; |
| 1988 | } |
| 1989 | |
| 1990 | static struct tegra_xusb_padctl * |
| 1991 | tegra210_xusb_padctl_probe(struct device *dev, |
| 1992 | const struct tegra_xusb_padctl_soc *soc) |
| 1993 | { |
| 1994 | struct tegra210_xusb_padctl *padctl; |
| 1995 | int err; |
| 1996 | |
| 1997 | padctl = devm_kzalloc(dev, sizeof(*padctl), GFP_KERNEL); |
| 1998 | if (!padctl) |
| 1999 | return ERR_PTR(-ENOMEM); |
| 2000 | |
| 2001 | padctl->base.dev = dev; |
| 2002 | padctl->base.soc = soc; |
| 2003 | |
| 2004 | err = tegra210_xusb_read_fuse_calibration(&padctl->fuse); |
| 2005 | if (err < 0) |
| 2006 | return ERR_PTR(err); |
| 2007 | |
| 2008 | return &padctl->base; |
| 2009 | } |
| 2010 | |
| 2011 | static void tegra210_xusb_padctl_remove(struct tegra_xusb_padctl *padctl) |
| 2012 | { |
| 2013 | } |
| 2014 | |
| 2015 | static const struct tegra_xusb_padctl_ops tegra210_xusb_padctl_ops = { |
| 2016 | .probe = tegra210_xusb_padctl_probe, |
| 2017 | .remove = tegra210_xusb_padctl_remove, |
| 2018 | .usb3_set_lfps_detect = tegra210_usb3_set_lfps_detect, |
| 2019 | .hsic_set_idle = tegra210_hsic_set_idle, |
| 2020 | }; |
| 2021 | |
| 2022 | const struct tegra_xusb_padctl_soc tegra210_xusb_padctl_soc = { |
| 2023 | .num_pads = ARRAY_SIZE(tegra210_pads), |
| 2024 | .pads = tegra210_pads, |
| 2025 | .ports = { |
| 2026 | .usb2 = { |
| 2027 | .ops = &tegra210_usb2_port_ops, |
| 2028 | .count = 4, |
| 2029 | }, |
| 2030 | .hsic = { |
| 2031 | .ops = &tegra210_hsic_port_ops, |
| 2032 | .count = 1, |
| 2033 | }, |
| 2034 | .usb3 = { |
| 2035 | .ops = &tegra210_usb3_port_ops, |
| 2036 | .count = 4, |
| 2037 | }, |
| 2038 | }, |
| 2039 | .ops = &tegra210_xusb_padctl_ops, |
| 2040 | }; |
| 2041 | EXPORT_SYMBOL_GPL(tegra210_xusb_padctl_soc); |
| 2042 | |
| 2043 | MODULE_AUTHOR("Andrew Bresticker <abrestic@chromium.org>"); |
| 2044 | MODULE_DESCRIPTION("NVIDIA Tegra 210 XUSB Pad Controller driver"); |
| 2045 | MODULE_LICENSE("GPL v2"); |