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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / phy / tegra / xusb-tegra124.c
blob98d84920c676c5df0b1e5709ec73f021697f1f12
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
4 */
5
6 #include <linux/delay.h>
7 #include <linux/io.h>
8 #include <linux/mailbox_client.h>
9 #include <linux/module.h>
10 #include <linux/of.h>
11 #include <linux/phy/phy.h>
12 #include <linux/platform_device.h>
13 #include <linux/regulator/consumer.h>
14 #include <linux/reset.h>
15 #include <linux/slab.h>
16
17 #include <soc/tegra/fuse.h>
18
19 #include "xusb.h"
20
21 #define FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(x) ((x) ? 15 : 0)
22 #define FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK 0x3f
23 #define FUSE_SKU_CALIB_HS_IREF_CAP_SHIFT 13
24 #define FUSE_SKU_CALIB_HS_IREF_CAP_MASK 0x3
25 #define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_SHIFT 11
26 #define FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_MASK 0x3
27 #define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT 7
28 #define FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK 0xf
29
30 #define XUSB_PADCTL_USB2_PORT_CAP 0x008
31 #define XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(x) ((x) * 4)
32 #define XUSB_PADCTL_USB2_PORT_CAP_PORT_CAP_MASK 0x3
33 #define XUSB_PADCTL_USB2_PORT_CAP_DISABLED 0x0
34 #define XUSB_PADCTL_USB2_PORT_CAP_HOST 0x1
35 #define XUSB_PADCTL_USB2_PORT_CAP_DEVICE 0x2
36 #define XUSB_PADCTL_USB2_PORT_CAP_OTG 0x3
37
38 #define XUSB_PADCTL_SS_PORT_MAP 0x014
39 #define XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(x) (1 << (((x) * 4) + 3))
40 #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_SHIFT(x) ((x) * 4)
41 #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(x) (0x7 << ((x) * 4))
42 #define XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(x, v) (((v) & 0x7) << ((x) * 4))
43 #define XUSB_PADCTL_SS_PORT_MAP_PORT_MAP_MASK 0x7
44
45 #define XUSB_PADCTL_ELPG_PROGRAM 0x01c
46 #define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN (1 << 26)
47 #define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY (1 << 25)
48 #define XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN (1 << 24)
49 #define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(x) (1 << (18 + (x) * 4))
50 #define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(x) \
51 (1 << (17 + (x) * 4))
52 #define XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(x) (1 << (16 + (x) * 4))
53
54 #define XUSB_PADCTL_IOPHY_PLL_P0_CTL1 0x040
55 #define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET (1 << 19)
56 #define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_REFCLK_SEL_MASK (0xf << 12)
57 #define XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST (1 << 1)
58
59 #define XUSB_PADCTL_IOPHY_PLL_P0_CTL2 0x044
60 #define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_REFCLKBUF_EN (1 << 6)
61 #define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN (1 << 5)
62 #define XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL (1 << 4)
63
64 #define XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(x) (0x058 + (x) * 4)
65 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT 24
66 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_MASK 0xff
67 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_VAL 0x24
68 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT 16
69 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK 0x3f
70 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT 8
71 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK 0x3f
72 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT 8
73 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_MASK 0xffff
74 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_VAL 0xf070
75 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT 4
76 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_MASK 0xf
77 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_VAL 0xf
78
79 #define XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(x) (0x068 + (x) * 4)
80 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT 24
81 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK 0x1f
82 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT 16
83 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK 0x7f
84 #define XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_VAL 0x002008ee
85
86 #define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL2(x) ((x) < 2 ? 0x078 + (x) * 4 : \
87 0x0f8 + (x) * 4)
88 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT 28
89 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_MASK 0x3
90 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_VAL 0x1
91
92 #define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL5(x) ((x) < 2 ? 0x090 + (x) * 4 : \
93 0x11c + (x) * 4)
94 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL5_RX_QEYE_EN (1 << 8)
95
96 #define XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(x) ((x) < 2 ? 0x098 + (x) * 4 : \
97 0x128 + (x) * 4)
98 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT 24
99 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK 0x3f
100 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK 0x1f
101 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK 0x7f
102 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT 16
103 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK 0xff
104 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z 0x21
105 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP 0x32
106 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP 0x33
107 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z 0x48
108 #define XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z 0xa1
109
110 #define XUSB_PADCTL_USB2_OTG_PADX_CTL0(x) (0x0a0 + (x) * 4)
111 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI (1 << 21)
112 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 (1 << 20)
113 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD (1 << 19)
114 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT 14
115 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK 0x3
116 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_VAL(x) ((x) ? 0x0 : 0x3)
117 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT 6
118 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_MASK 0x3f
119 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_VAL 0x0e
120 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT 0
121 #define XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK 0x3f
122
123 #define XUSB_PADCTL_USB2_OTG_PADX_CTL1(x) (0x0ac + (x) * 4)
124 #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT 9
125 #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_MASK 0x3
126 #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT 3
127 #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK 0x7
128 #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR (1 << 2)
129 #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP (1 << 1)
130 #define XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP (1 << 0)
131
132 #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0 0x0b8
133 #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD (1 << 12)
134 #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT 2
135 #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK 0x7
136 #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL 0x5
137 #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT 0
138 #define XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK 0x3
139
140 #define XUSB_PADCTL_HSIC_PADX_CTL0(x) (0x0c0 + (x) * 4)
141 #define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT 12
142 #define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK 0x7
143 #define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT 8
144 #define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK 0x7
145 #define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT 4
146 #define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK 0x7
147 #define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT 0
148 #define XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK 0x7
149
150 #define XUSB_PADCTL_HSIC_PADX_CTL1(x) (0x0c8 + (x) * 4)
151 #define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE (1 << 10)
152 #define XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA (1 << 9)
153 #define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE (1 << 8)
154 #define XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA (1 << 7)
155 #define XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI (1 << 5)
156 #define XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX (1 << 4)
157 #define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX (1 << 3)
158 #define XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX (1 << 2)
159 #define XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN (1 << 0)
160
161 #define XUSB_PADCTL_HSIC_PADX_CTL2(x) (0x0d0 + (x) * 4)
162 #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT 4
163 #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK 0x7
164 #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT 0
165 #define XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK 0x7
166
167 #define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL 0x0e0
168 #define XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL_STRB_TRIM_MASK 0x1f
169
170 #define XUSB_PADCTL_USB3_PAD_MUX 0x134
171 #define XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(x) (1 << (1 + (x)))
172 #define XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(x) (1 << (6 + (x)))
173
174 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1 0x138
175 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET (1 << 27)
176 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE (1 << 24)
177 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_SHIFT 20
178 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_MASK 0x3
179 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD (1 << 3)
180 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST (1 << 1)
181 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ (1 << 0)
182
183 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL2 0x13c
184 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_SHIFT 20
185 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_MASK 0xf
186 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_SHIFT 16
187 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_MASK 0xf
188 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TCLKOUT_EN (1 << 12)
189 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TXCLKREF_SEL (1 << 4)
190 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_SHIFT 0
191 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_MASK 0x7
192
193 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL3 0x140
194 #define XUSB_PADCTL_IOPHY_PLL_S0_CTL3_RCAL_BYPASS (1 << 7)
195
196 #define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1 0x148
197 #define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD (1 << 1)
198 #define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ (1 << 0)
199
200 #define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL2 0x14c
201
202 #define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL5 0x158
203
204 #define XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6 0x15c
205
206 struct tegra124_xusb_fuse_calibration {
207 u32 hs_curr_level[3];
208 u32 hs_iref_cap;
209 u32 hs_term_range_adj;
210 u32 hs_squelch_level;
211 };
212
213 struct tegra124_xusb_padctl {
214 struct tegra_xusb_padctl base;
215
216 struct tegra124_xusb_fuse_calibration fuse;
217 };
218
219 static inline struct tegra124_xusb_padctl *
220 to_tegra124_xusb_padctl(struct tegra_xusb_padctl *padctl)
221 {
222 return container_of(padctl, struct tegra124_xusb_padctl, base);
223 }
224
225 static int tegra124_xusb_padctl_enable(struct tegra_xusb_padctl *padctl)
226 {
227 u32 value;
228
229 mutex_lock(&padctl->lock);
230
231 if (padctl->enable++ > 0)
232 goto out;
233
234 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
235 value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
236 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
237
238 usleep_range(100, 200);
239
240 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
241 value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
242 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
243
244 usleep_range(100, 200);
245
246 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
247 value &= ~XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
248 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
249
250 out:
251 mutex_unlock(&padctl->lock);
252 return 0;
253 }
254
255 static int tegra124_xusb_padctl_disable(struct tegra_xusb_padctl *padctl)
256 {
257 u32 value;
258
259 mutex_lock(&padctl->lock);
260
261 if (WARN_ON(padctl->enable == 0))
262 goto out;
263
264 if (--padctl->enable > 0)
265 goto out;
266
267 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
268 value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_VCORE_DOWN;
269 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
270
271 usleep_range(100, 200);
272
273 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
274 value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN_EARLY;
275 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
276
277 usleep_range(100, 200);
278
279 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
280 value |= XUSB_PADCTL_ELPG_PROGRAM_AUX_MUX_LP0_CLAMP_EN;
281 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
282
283 out:
284 mutex_unlock(&padctl->lock);
285 return 0;
286 }
287
288 static int tegra124_usb3_save_context(struct tegra_xusb_padctl *padctl,
289 unsigned int index)
290 {
291 struct tegra_xusb_usb3_port *port;
292 struct tegra_xusb_lane *lane;
293 u32 value, offset;
294
295 port = tegra_xusb_find_usb3_port(padctl, index);
296 if (!port)
297 return -ENODEV;
298
299 port->context_saved = true;
300 lane = port->base.lane;
301
302 if (lane->pad == padctl->pcie)
303 offset = XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL6(lane->index);
304 else
305 offset = XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL6;
306
307 value = padctl_readl(padctl, offset);
308 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
309 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
310 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_TAP <<
311 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
312 padctl_writel(padctl, value, offset);
313
314 value = padctl_readl(padctl, offset) >>
315 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
316 port->tap1 = value & XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_TAP_MASK;
317
318 value = padctl_readl(padctl, offset);
319 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
320 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
321 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_AMP <<
322 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
323 padctl_writel(padctl, value, offset);
324
325 value = padctl_readl(padctl, offset) >>
326 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
327 port->amp = value & XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_AMP_MASK;
328
329 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(index));
330 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK <<
331 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
332 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK <<
333 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT));
334 value |= (port->tap1 <<
335 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
336 (port->amp <<
337 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT);
338 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(index));
339
340 value = padctl_readl(padctl, offset);
341 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
342 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
343 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_LATCH_G_Z <<
344 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
345 padctl_writel(padctl, value, offset);
346
347 value = padctl_readl(padctl, offset);
348 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
349 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
350 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_G_Z <<
351 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
352 padctl_writel(padctl, value, offset);
353
354 value = padctl_readl(padctl, offset) >>
355 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
356 port->ctle_g = value &
357 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK;
358
359 value = padctl_readl(padctl, offset);
360 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_MASK <<
361 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT);
362 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_CTLE_Z <<
363 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SEL_SHIFT;
364 padctl_writel(padctl, value, offset);
365
366 value = padctl_readl(padctl, offset) >>
367 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_SHIFT;
368 port->ctle_z = value &
369 XUSB_PADCTL_IOPHY_MISC_PAD_CTL6_MISC_OUT_G_Z_MASK;
370
371 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
372 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK <<
373 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
374 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK <<
375 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT));
376 value |= (port->ctle_g <<
377 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
378 (port->ctle_z <<
379 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT);
380 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
381
382 return 0;
383 }
384
385 static int tegra124_hsic_set_idle(struct tegra_xusb_padctl *padctl,
386 unsigned int index, bool idle)
387 {
388 u32 value;
389
390 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index));
391
392 if (idle)
393 value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
394 XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE;
395 else
396 value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
397 XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE);
398
399 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
400
401 return 0;
402 }
403
404 #define TEGRA124_LANE(_name, _offset, _shift, _mask, _type) \
405 { \
406 .name = _name, \
407 .offset = _offset, \
408 .shift = _shift, \
409 .mask = _mask, \
410 .num_funcs = ARRAY_SIZE(tegra124_##_type##_functions), \
411 .funcs = tegra124_##_type##_functions, \
412 }
413
414 static const char * const tegra124_usb2_functions[] = {
415 "snps",
416 "xusb",
417 "uart",
418 };
419
420 static const struct tegra_xusb_lane_soc tegra124_usb2_lanes[] = {
421 TEGRA124_LANE("usb2-0", 0x004, 0, 0x3, usb2),
422 TEGRA124_LANE("usb2-1", 0x004, 2, 0x3, usb2),
423 TEGRA124_LANE("usb2-2", 0x004, 4, 0x3, usb2),
424 };
425
426 static struct tegra_xusb_lane *
427 tegra124_usb2_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
428 unsigned int index)
429 {
430 struct tegra_xusb_usb2_lane *usb2;
431 int err;
432
433 usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL);
434 if (!usb2)
435 return ERR_PTR(-ENOMEM);
436
437 INIT_LIST_HEAD(&usb2->base.list);
438 usb2->base.soc = &pad->soc->lanes[index];
439 usb2->base.index = index;
440 usb2->base.pad = pad;
441 usb2->base.np = np;
442
443 err = tegra_xusb_lane_parse_dt(&usb2->base, np);
444 if (err < 0) {
445 kfree(usb2);
446 return ERR_PTR(err);
447 }
448
449 return &usb2->base;
450 }
451
452 static void tegra124_usb2_lane_remove(struct tegra_xusb_lane *lane)
453 {
454 struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane);
455
456 kfree(usb2);
457 }
458
459 static const struct tegra_xusb_lane_ops tegra124_usb2_lane_ops = {
460 .probe = tegra124_usb2_lane_probe,
461 .remove = tegra124_usb2_lane_remove,
462 };
463
464 static int tegra124_usb2_phy_init(struct phy *phy)
465 {
466 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
467
468 return tegra124_xusb_padctl_enable(lane->pad->padctl);
469 }
470
471 static int tegra124_usb2_phy_exit(struct phy *phy)
472 {
473 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
474
475 return tegra124_xusb_padctl_disable(lane->pad->padctl);
476 }
477
478 static int tegra124_usb2_phy_power_on(struct phy *phy)
479 {
480 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
481 struct tegra_xusb_usb2_lane *usb2 = to_usb2_lane(lane);
482 struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad);
483 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
484 struct tegra124_xusb_padctl *priv;
485 struct tegra_xusb_usb2_port *port;
486 unsigned int index = lane->index;
487 u32 value;
488 int err;
489
490 port = tegra_xusb_find_usb2_port(padctl, index);
491 if (!port) {
492 dev_err(&phy->dev, "no port found for USB2 lane %u\n", index);
493 return -ENODEV;
494 }
495
496 priv = to_tegra124_xusb_padctl(padctl);
497
498 value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
499 value &= ~((XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_MASK <<
500 XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) |
501 (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_MASK <<
502 XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT));
503 value |= (priv->fuse.hs_squelch_level <<
504 XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_SQUELCH_LEVEL_SHIFT) |
505 (XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_VAL <<
506 XUSB_PADCTL_USB2_BIAS_PAD_CTL0_HS_DISCON_LEVEL_SHIFT);
507 padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
508
509 value = padctl_readl(padctl, XUSB_PADCTL_USB2_PORT_CAP);
510 value &= ~(XUSB_PADCTL_USB2_PORT_CAP_PORT_CAP_MASK <<
511 XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(index));
512 value |= XUSB_PADCTL_USB2_PORT_CAP_HOST <<
513 XUSB_PADCTL_USB2_PORT_CAP_PORTX_CAP_SHIFT(index);
514 padctl_writel(padctl, value, XUSB_PADCTL_USB2_PORT_CAP);
515
516 value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index));
517 value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_MASK <<
518 XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT) |
519 (XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_MASK <<
520 XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT) |
521 (XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_MASK <<
522 XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT) |
523 XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD |
524 XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD2 |
525 XUSB_PADCTL_USB2_OTG_PAD_CTL0_PD_ZI);
526 value |= (priv->fuse.hs_curr_level[index] +
527 usb2->hs_curr_level_offset) <<
528 XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_CURR_LEVEL_SHIFT;
529 value |= XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_VAL <<
530 XUSB_PADCTL_USB2_OTG_PAD_CTL0_HS_SLEW_SHIFT;
531 value |= XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_VAL(index) <<
532 XUSB_PADCTL_USB2_OTG_PAD_CTL0_LS_RSLEW_SHIFT;
533 padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL0(index));
534
535 value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index));
536 value &= ~((XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_MASK <<
537 XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) |
538 (XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_MASK <<
539 XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT) |
540 XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DR |
541 XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_CHRP_FORCE_POWERUP |
542 XUSB_PADCTL_USB2_OTG_PAD_CTL1_PD_DISC_FORCE_POWERUP);
543 value |= (priv->fuse.hs_term_range_adj <<
544 XUSB_PADCTL_USB2_OTG_PAD_CTL1_TERM_RANGE_ADJ_SHIFT) |
545 (priv->fuse.hs_iref_cap <<
546 XUSB_PADCTL_USB2_OTG_PAD_CTL1_HS_IREF_CAP_SHIFT);
547 padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index));
548
549 err = regulator_enable(port->supply);
550 if (err)
551 return err;
552
553 mutex_lock(&pad->lock);
554
555 if (pad->enable++ > 0)
556 goto out;
557
558 value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
559 value &= ~XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD;
560 padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
561
562 out:
563 mutex_unlock(&pad->lock);
564 return 0;
565 }
566
567 static int tegra124_usb2_phy_power_off(struct phy *phy)
568 {
569 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
570 struct tegra_xusb_usb2_pad *pad = to_usb2_pad(lane->pad);
571 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
572 struct tegra_xusb_usb2_port *port;
573 u32 value;
574
575 port = tegra_xusb_find_usb2_port(padctl, lane->index);
576 if (!port) {
577 dev_err(&phy->dev, "no port found for USB2 lane %u\n",
578 lane->index);
579 return -ENODEV;
580 }
581
582 mutex_lock(&pad->lock);
583
584 if (WARN_ON(pad->enable == 0))
585 goto out;
586
587 if (--pad->enable > 0)
588 goto out;
589
590 value = padctl_readl(padctl, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
591 value |= XUSB_PADCTL_USB2_BIAS_PAD_CTL0_PD;
592 padctl_writel(padctl, value, XUSB_PADCTL_USB2_BIAS_PAD_CTL0);
593
594 out:
595 regulator_disable(port->supply);
596 mutex_unlock(&pad->lock);
597 return 0;
598 }
599
600 static const struct phy_ops tegra124_usb2_phy_ops = {
601 .init = tegra124_usb2_phy_init,
602 .exit = tegra124_usb2_phy_exit,
603 .power_on = tegra124_usb2_phy_power_on,
604 .power_off = tegra124_usb2_phy_power_off,
605 .owner = THIS_MODULE,
606 };
607
608 static struct tegra_xusb_pad *
609 tegra124_usb2_pad_probe(struct tegra_xusb_padctl *padctl,
610 const struct tegra_xusb_pad_soc *soc,
611 struct device_node *np)
612 {
613 struct tegra_xusb_usb2_pad *usb2;
614 struct tegra_xusb_pad *pad;
615 int err;
616
617 usb2 = kzalloc(sizeof(*usb2), GFP_KERNEL);
618 if (!usb2)
619 return ERR_PTR(-ENOMEM);
620
621 mutex_init(&usb2->lock);
622
623 pad = &usb2->base;
624 pad->ops = &tegra124_usb2_lane_ops;
625 pad->soc = soc;
626
627 err = tegra_xusb_pad_init(pad, padctl, np);
628 if (err < 0) {
629 kfree(usb2);
630 goto out;
631 }
632
633 err = tegra_xusb_pad_register(pad, &tegra124_usb2_phy_ops);
634 if (err < 0)
635 goto unregister;
636
637 dev_set_drvdata(&pad->dev, pad);
638
639 return pad;
640
641 unregister:
642 device_unregister(&pad->dev);
643 out:
644 return ERR_PTR(err);
645 }
646
647 static void tegra124_usb2_pad_remove(struct tegra_xusb_pad *pad)
648 {
649 struct tegra_xusb_usb2_pad *usb2 = to_usb2_pad(pad);
650
651 kfree(usb2);
652 }
653
654 static const struct tegra_xusb_pad_ops tegra124_usb2_ops = {
655 .probe = tegra124_usb2_pad_probe,
656 .remove = tegra124_usb2_pad_remove,
657 };
658
659 static const struct tegra_xusb_pad_soc tegra124_usb2_pad = {
660 .name = "usb2",
661 .num_lanes = ARRAY_SIZE(tegra124_usb2_lanes),
662 .lanes = tegra124_usb2_lanes,
663 .ops = &tegra124_usb2_ops,
664 };
665
666 static const char * const tegra124_ulpi_functions[] = {
667 "snps",
668 "xusb",
669 };
670
671 static const struct tegra_xusb_lane_soc tegra124_ulpi_lanes[] = {
672 TEGRA124_LANE("ulpi-0", 0x004, 12, 0x1, ulpi),
673 };
674
675 static struct tegra_xusb_lane *
676 tegra124_ulpi_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
677 unsigned int index)
678 {
679 struct tegra_xusb_ulpi_lane *ulpi;
680 int err;
681
682 ulpi = kzalloc(sizeof(*ulpi), GFP_KERNEL);
683 if (!ulpi)
684 return ERR_PTR(-ENOMEM);
685
686 INIT_LIST_HEAD(&ulpi->base.list);
687 ulpi->base.soc = &pad->soc->lanes[index];
688 ulpi->base.index = index;
689 ulpi->base.pad = pad;
690 ulpi->base.np = np;
691
692 err = tegra_xusb_lane_parse_dt(&ulpi->base, np);
693 if (err < 0) {
694 kfree(ulpi);
695 return ERR_PTR(err);
696 }
697
698 return &ulpi->base;
699 }
700
701 static void tegra124_ulpi_lane_remove(struct tegra_xusb_lane *lane)
702 {
703 struct tegra_xusb_ulpi_lane *ulpi = to_ulpi_lane(lane);
704
705 kfree(ulpi);
706 }
707
708 static const struct tegra_xusb_lane_ops tegra124_ulpi_lane_ops = {
709 .probe = tegra124_ulpi_lane_probe,
710 .remove = tegra124_ulpi_lane_remove,
711 };
712
713 static int tegra124_ulpi_phy_init(struct phy *phy)
714 {
715 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
716
717 return tegra124_xusb_padctl_enable(lane->pad->padctl);
718 }
719
720 static int tegra124_ulpi_phy_exit(struct phy *phy)
721 {
722 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
723
724 return tegra124_xusb_padctl_disable(lane->pad->padctl);
725 }
726
727 static int tegra124_ulpi_phy_power_on(struct phy *phy)
728 {
729 return 0;
730 }
731
732 static int tegra124_ulpi_phy_power_off(struct phy *phy)
733 {
734 return 0;
735 }
736
737 static const struct phy_ops tegra124_ulpi_phy_ops = {
738 .init = tegra124_ulpi_phy_init,
739 .exit = tegra124_ulpi_phy_exit,
740 .power_on = tegra124_ulpi_phy_power_on,
741 .power_off = tegra124_ulpi_phy_power_off,
742 .owner = THIS_MODULE,
743 };
744
745 static struct tegra_xusb_pad *
746 tegra124_ulpi_pad_probe(struct tegra_xusb_padctl *padctl,
747 const struct tegra_xusb_pad_soc *soc,
748 struct device_node *np)
749 {
750 struct tegra_xusb_ulpi_pad *ulpi;
751 struct tegra_xusb_pad *pad;
752 int err;
753
754 ulpi = kzalloc(sizeof(*ulpi), GFP_KERNEL);
755 if (!ulpi)
756 return ERR_PTR(-ENOMEM);
757
758 pad = &ulpi->base;
759 pad->ops = &tegra124_ulpi_lane_ops;
760 pad->soc = soc;
761
762 err = tegra_xusb_pad_init(pad, padctl, np);
763 if (err < 0) {
764 kfree(ulpi);
765 goto out;
766 }
767
768 err = tegra_xusb_pad_register(pad, &tegra124_ulpi_phy_ops);
769 if (err < 0)
770 goto unregister;
771
772 dev_set_drvdata(&pad->dev, pad);
773
774 return pad;
775
776 unregister:
777 device_unregister(&pad->dev);
778 out:
779 return ERR_PTR(err);
780 }
781
782 static void tegra124_ulpi_pad_remove(struct tegra_xusb_pad *pad)
783 {
784 struct tegra_xusb_ulpi_pad *ulpi = to_ulpi_pad(pad);
785
786 kfree(ulpi);
787 }
788
789 static const struct tegra_xusb_pad_ops tegra124_ulpi_ops = {
790 .probe = tegra124_ulpi_pad_probe,
791 .remove = tegra124_ulpi_pad_remove,
792 };
793
794 static const struct tegra_xusb_pad_soc tegra124_ulpi_pad = {
795 .name = "ulpi",
796 .num_lanes = ARRAY_SIZE(tegra124_ulpi_lanes),
797 .lanes = tegra124_ulpi_lanes,
798 .ops = &tegra124_ulpi_ops,
799 };
800
801 static const char * const tegra124_hsic_functions[] = {
802 "snps",
803 "xusb",
804 };
805
806 static const struct tegra_xusb_lane_soc tegra124_hsic_lanes[] = {
807 TEGRA124_LANE("hsic-0", 0x004, 14, 0x1, hsic),
808 TEGRA124_LANE("hsic-1", 0x004, 15, 0x1, hsic),
809 };
810
811 static struct tegra_xusb_lane *
812 tegra124_hsic_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
813 unsigned int index)
814 {
815 struct tegra_xusb_hsic_lane *hsic;
816 int err;
817
818 hsic = kzalloc(sizeof(*hsic), GFP_KERNEL);
819 if (!hsic)
820 return ERR_PTR(-ENOMEM);
821
822 INIT_LIST_HEAD(&hsic->base.list);
823 hsic->base.soc = &pad->soc->lanes[index];
824 hsic->base.index = index;
825 hsic->base.pad = pad;
826 hsic->base.np = np;
827
828 err = tegra_xusb_lane_parse_dt(&hsic->base, np);
829 if (err < 0) {
830 kfree(hsic);
831 return ERR_PTR(err);
832 }
833
834 return &hsic->base;
835 }
836
837 static void tegra124_hsic_lane_remove(struct tegra_xusb_lane *lane)
838 {
839 struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane);
840
841 kfree(hsic);
842 }
843
844 static const struct tegra_xusb_lane_ops tegra124_hsic_lane_ops = {
845 .probe = tegra124_hsic_lane_probe,
846 .remove = tegra124_hsic_lane_remove,
847 };
848
849 static int tegra124_hsic_phy_init(struct phy *phy)
850 {
851 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
852
853 return tegra124_xusb_padctl_enable(lane->pad->padctl);
854 }
855
856 static int tegra124_hsic_phy_exit(struct phy *phy)
857 {
858 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
859
860 return tegra124_xusb_padctl_disable(lane->pad->padctl);
861 }
862
863 static int tegra124_hsic_phy_power_on(struct phy *phy)
864 {
865 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
866 struct tegra_xusb_hsic_lane *hsic = to_hsic_lane(lane);
867 struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad);
868 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
869 unsigned int index = lane->index;
870 u32 value;
871 int err;
872
873 err = regulator_enable(pad->supply);
874 if (err)
875 return err;
876
877 padctl_writel(padctl, hsic->strobe_trim,
878 XUSB_PADCTL_HSIC_STRB_TRIM_CONTROL);
879
880 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index));
881
882 if (hsic->auto_term)
883 value |= XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN;
884 else
885 value &= ~XUSB_PADCTL_HSIC_PAD_CTL1_AUTO_TERM_EN;
886
887 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
888
889 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL0(index));
890 value &= ~((XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_MASK <<
891 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT) |
892 (XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_MASK <<
893 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT) |
894 (XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_MASK <<
895 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT) |
896 (XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_MASK <<
897 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT));
898 value |= (hsic->tx_rtune_n <<
899 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEN_SHIFT) |
900 (hsic->tx_rtune_p <<
901 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RTUNEP_SHIFT) |
902 (hsic->tx_rslew_n <<
903 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWN_SHIFT) |
904 (hsic->tx_rslew_p <<
905 XUSB_PADCTL_HSIC_PAD_CTL0_TX_RSLEWP_SHIFT);
906 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL0(index));
907
908 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL2(index));
909 value &= ~((XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_MASK <<
910 XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) |
911 (XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_MASK <<
912 XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT));
913 value |= (hsic->rx_strobe_trim <<
914 XUSB_PADCTL_HSIC_PAD_CTL2_RX_STROBE_TRIM_SHIFT) |
915 (hsic->rx_data_trim <<
916 XUSB_PADCTL_HSIC_PAD_CTL2_RX_DATA_TRIM_SHIFT);
917 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL2(index));
918
919 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index));
920 value &= ~(XUSB_PADCTL_HSIC_PAD_CTL1_RPD_STROBE |
921 XUSB_PADCTL_HSIC_PAD_CTL1_RPU_DATA |
922 XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX |
923 XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI |
924 XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX |
925 XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX);
926 value |= XUSB_PADCTL_HSIC_PAD_CTL1_RPD_DATA |
927 XUSB_PADCTL_HSIC_PAD_CTL1_RPU_STROBE;
928 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
929
930 return 0;
931 }
932
933 static int tegra124_hsic_phy_power_off(struct phy *phy)
934 {
935 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
936 struct tegra_xusb_hsic_pad *pad = to_hsic_pad(lane->pad);
937 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
938 unsigned int index = lane->index;
939 u32 value;
940
941 value = padctl_readl(padctl, XUSB_PADCTL_HSIC_PADX_CTL1(index));
942 value |= XUSB_PADCTL_HSIC_PAD_CTL1_PD_RX |
943 XUSB_PADCTL_HSIC_PAD_CTL1_PD_ZI |
944 XUSB_PADCTL_HSIC_PAD_CTL1_PD_TRX |
945 XUSB_PADCTL_HSIC_PAD_CTL1_PD_TX;
946 padctl_writel(padctl, value, XUSB_PADCTL_HSIC_PADX_CTL1(index));
947
948 regulator_disable(pad->supply);
949
950 return 0;
951 }
952
953 static const struct phy_ops tegra124_hsic_phy_ops = {
954 .init = tegra124_hsic_phy_init,
955 .exit = tegra124_hsic_phy_exit,
956 .power_on = tegra124_hsic_phy_power_on,
957 .power_off = tegra124_hsic_phy_power_off,
958 .owner = THIS_MODULE,
959 };
960
961 static struct tegra_xusb_pad *
962 tegra124_hsic_pad_probe(struct tegra_xusb_padctl *padctl,
963 const struct tegra_xusb_pad_soc *soc,
964 struct device_node *np)
965 {
966 struct tegra_xusb_hsic_pad *hsic;
967 struct tegra_xusb_pad *pad;
968 int err;
969
970 hsic = kzalloc(sizeof(*hsic), GFP_KERNEL);
971 if (!hsic)
972 return ERR_PTR(-ENOMEM);
973
974 pad = &hsic->base;
975 pad->ops = &tegra124_hsic_lane_ops;
976 pad->soc = soc;
977
978 err = tegra_xusb_pad_init(pad, padctl, np);
979 if (err < 0) {
980 kfree(hsic);
981 goto out;
982 }
983
984 err = tegra_xusb_pad_register(pad, &tegra124_hsic_phy_ops);
985 if (err < 0)
986 goto unregister;
987
988 dev_set_drvdata(&pad->dev, pad);
989
990 return pad;
991
992 unregister:
993 device_unregister(&pad->dev);
994 out:
995 return ERR_PTR(err);
996 }
997
998 static void tegra124_hsic_pad_remove(struct tegra_xusb_pad *pad)
999 {
1000 struct tegra_xusb_hsic_pad *hsic = to_hsic_pad(pad);
1001
1002 kfree(hsic);
1003 }
1004
1005 static const struct tegra_xusb_pad_ops tegra124_hsic_ops = {
1006 .probe = tegra124_hsic_pad_probe,
1007 .remove = tegra124_hsic_pad_remove,
1008 };
1009
1010 static const struct tegra_xusb_pad_soc tegra124_hsic_pad = {
1011 .name = "hsic",
1012 .num_lanes = ARRAY_SIZE(tegra124_hsic_lanes),
1013 .lanes = tegra124_hsic_lanes,
1014 .ops = &tegra124_hsic_ops,
1015 };
1016
1017 static const char * const tegra124_pcie_functions[] = {
1018 "pcie",
1019 "usb3-ss",
1020 "sata",
1021 };
1022
1023 static const struct tegra_xusb_lane_soc tegra124_pcie_lanes[] = {
1024 TEGRA124_LANE("pcie-0", 0x134, 16, 0x3, pcie),
1025 TEGRA124_LANE("pcie-1", 0x134, 18, 0x3, pcie),
1026 TEGRA124_LANE("pcie-2", 0x134, 20, 0x3, pcie),
1027 TEGRA124_LANE("pcie-3", 0x134, 22, 0x3, pcie),
1028 TEGRA124_LANE("pcie-4", 0x134, 24, 0x3, pcie),
1029 };
1030
1031 static struct tegra_xusb_lane *
1032 tegra124_pcie_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
1033 unsigned int index)
1034 {
1035 struct tegra_xusb_pcie_lane *pcie;
1036 int err;
1037
1038 pcie = kzalloc(sizeof(*pcie), GFP_KERNEL);
1039 if (!pcie)
1040 return ERR_PTR(-ENOMEM);
1041
1042 INIT_LIST_HEAD(&pcie->base.list);
1043 pcie->base.soc = &pad->soc->lanes[index];
1044 pcie->base.index = index;
1045 pcie->base.pad = pad;
1046 pcie->base.np = np;
1047
1048 err = tegra_xusb_lane_parse_dt(&pcie->base, np);
1049 if (err < 0) {
1050 kfree(pcie);
1051 return ERR_PTR(err);
1052 }
1053
1054 return &pcie->base;
1055 }
1056
1057 static void tegra124_pcie_lane_remove(struct tegra_xusb_lane *lane)
1058 {
1059 struct tegra_xusb_pcie_lane *pcie = to_pcie_lane(lane);
1060
1061 kfree(pcie);
1062 }
1063
1064 static const struct tegra_xusb_lane_ops tegra124_pcie_lane_ops = {
1065 .probe = tegra124_pcie_lane_probe,
1066 .remove = tegra124_pcie_lane_remove,
1067 };
1068
1069 static int tegra124_pcie_phy_init(struct phy *phy)
1070 {
1071 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1072
1073 return tegra124_xusb_padctl_enable(lane->pad->padctl);
1074 }
1075
1076 static int tegra124_pcie_phy_exit(struct phy *phy)
1077 {
1078 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1079
1080 return tegra124_xusb_padctl_disable(lane->pad->padctl);
1081 }
1082
1083 static int tegra124_pcie_phy_power_on(struct phy *phy)
1084 {
1085 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1086 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
1087 unsigned long timeout;
1088 int err = -ETIMEDOUT;
1089 u32 value;
1090
1091 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1092 value &= ~XUSB_PADCTL_IOPHY_PLL_P0_CTL1_REFCLK_SEL_MASK;
1093 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1094
1095 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL2);
1096 value |= XUSB_PADCTL_IOPHY_PLL_P0_CTL2_REFCLKBUF_EN |
1097 XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_EN |
1098 XUSB_PADCTL_IOPHY_PLL_P0_CTL2_TXCLKREF_SEL;
1099 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL2);
1100
1101 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1102 value |= XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST;
1103 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1104
1105 timeout = jiffies + msecs_to_jiffies(50);
1106
1107 while (time_before(jiffies, timeout)) {
1108 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1109 if (value & XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL0_LOCKDET) {
1110 err = 0;
1111 break;
1112 }
1113
1114 usleep_range(100, 200);
1115 }
1116
1117 value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
1118 value |= XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index);
1119 padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
1120
1121 return err;
1122 }
1123
1124 static int tegra124_pcie_phy_power_off(struct phy *phy)
1125 {
1126 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1127 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
1128 u32 value;
1129
1130 value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
1131 value &= ~XUSB_PADCTL_USB3_PAD_MUX_PCIE_IDDQ_DISABLE(lane->index);
1132 padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
1133
1134 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1135 value &= ~XUSB_PADCTL_IOPHY_PLL_P0_CTL1_PLL_RST;
1136 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_P0_CTL1);
1137
1138 return 0;
1139 }
1140
1141 static const struct phy_ops tegra124_pcie_phy_ops = {
1142 .init = tegra124_pcie_phy_init,
1143 .exit = tegra124_pcie_phy_exit,
1144 .power_on = tegra124_pcie_phy_power_on,
1145 .power_off = tegra124_pcie_phy_power_off,
1146 .owner = THIS_MODULE,
1147 };
1148
1149 static struct tegra_xusb_pad *
1150 tegra124_pcie_pad_probe(struct tegra_xusb_padctl *padctl,
1151 const struct tegra_xusb_pad_soc *soc,
1152 struct device_node *np)
1153 {
1154 struct tegra_xusb_pcie_pad *pcie;
1155 struct tegra_xusb_pad *pad;
1156 int err;
1157
1158 pcie = kzalloc(sizeof(*pcie), GFP_KERNEL);
1159 if (!pcie)
1160 return ERR_PTR(-ENOMEM);
1161
1162 pad = &pcie->base;
1163 pad->ops = &tegra124_pcie_lane_ops;
1164 pad->soc = soc;
1165
1166 err = tegra_xusb_pad_init(pad, padctl, np);
1167 if (err < 0) {
1168 kfree(pcie);
1169 goto out;
1170 }
1171
1172 err = tegra_xusb_pad_register(pad, &tegra124_pcie_phy_ops);
1173 if (err < 0)
1174 goto unregister;
1175
1176 dev_set_drvdata(&pad->dev, pad);
1177
1178 return pad;
1179
1180 unregister:
1181 device_unregister(&pad->dev);
1182 out:
1183 return ERR_PTR(err);
1184 }
1185
1186 static void tegra124_pcie_pad_remove(struct tegra_xusb_pad *pad)
1187 {
1188 struct tegra_xusb_pcie_pad *pcie = to_pcie_pad(pad);
1189
1190 kfree(pcie);
1191 }
1192
1193 static const struct tegra_xusb_pad_ops tegra124_pcie_ops = {
1194 .probe = tegra124_pcie_pad_probe,
1195 .remove = tegra124_pcie_pad_remove,
1196 };
1197
1198 static const struct tegra_xusb_pad_soc tegra124_pcie_pad = {
1199 .name = "pcie",
1200 .num_lanes = ARRAY_SIZE(tegra124_pcie_lanes),
1201 .lanes = tegra124_pcie_lanes,
1202 .ops = &tegra124_pcie_ops,
1203 };
1204
1205 static const struct tegra_xusb_lane_soc tegra124_sata_lanes[] = {
1206 TEGRA124_LANE("sata-0", 0x134, 26, 0x3, pcie),
1207 };
1208
1209 static struct tegra_xusb_lane *
1210 tegra124_sata_lane_probe(struct tegra_xusb_pad *pad, struct device_node *np,
1211 unsigned int index)
1212 {
1213 struct tegra_xusb_sata_lane *sata;
1214 int err;
1215
1216 sata = kzalloc(sizeof(*sata), GFP_KERNEL);
1217 if (!sata)
1218 return ERR_PTR(-ENOMEM);
1219
1220 INIT_LIST_HEAD(&sata->base.list);
1221 sata->base.soc = &pad->soc->lanes[index];
1222 sata->base.index = index;
1223 sata->base.pad = pad;
1224 sata->base.np = np;
1225
1226 err = tegra_xusb_lane_parse_dt(&sata->base, np);
1227 if (err < 0) {
1228 kfree(sata);
1229 return ERR_PTR(err);
1230 }
1231
1232 return &sata->base;
1233 }
1234
1235 static void tegra124_sata_lane_remove(struct tegra_xusb_lane *lane)
1236 {
1237 struct tegra_xusb_sata_lane *sata = to_sata_lane(lane);
1238
1239 kfree(sata);
1240 }
1241
1242 static const struct tegra_xusb_lane_ops tegra124_sata_lane_ops = {
1243 .probe = tegra124_sata_lane_probe,
1244 .remove = tegra124_sata_lane_remove,
1245 };
1246
1247 static int tegra124_sata_phy_init(struct phy *phy)
1248 {
1249 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1250
1251 return tegra124_xusb_padctl_enable(lane->pad->padctl);
1252 }
1253
1254 static int tegra124_sata_phy_exit(struct phy *phy)
1255 {
1256 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1257
1258 return tegra124_xusb_padctl_disable(lane->pad->padctl);
1259 }
1260
1261 static int tegra124_sata_phy_power_on(struct phy *phy)
1262 {
1263 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1264 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
1265 unsigned long timeout;
1266 int err = -ETIMEDOUT;
1267 u32 value;
1268
1269 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
1270 value &= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD;
1271 value &= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ;
1272 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
1273
1274 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1275 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD;
1276 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ;
1277 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1278
1279 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1280 value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE;
1281 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1282
1283 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1284 value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST;
1285 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1286
1287 timeout = jiffies + msecs_to_jiffies(50);
1288
1289 while (time_before(jiffies, timeout)) {
1290 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1291 if (value & XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_LOCKDET) {
1292 err = 0;
1293 break;
1294 }
1295
1296 usleep_range(100, 200);
1297 }
1298
1299 value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
1300 value |= XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index);
1301 padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
1302
1303 return err;
1304 }
1305
1306 static int tegra124_sata_phy_power_off(struct phy *phy)
1307 {
1308 struct tegra_xusb_lane *lane = phy_get_drvdata(phy);
1309 struct tegra_xusb_padctl *padctl = lane->pad->padctl;
1310 u32 value;
1311
1312 value = padctl_readl(padctl, XUSB_PADCTL_USB3_PAD_MUX);
1313 value &= ~XUSB_PADCTL_USB3_PAD_MUX_SATA_IDDQ_DISABLE(lane->index);
1314 padctl_writel(padctl, value, XUSB_PADCTL_USB3_PAD_MUX);
1315
1316 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1317 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_RST;
1318 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1319
1320 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1321 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL1_MODE;
1322 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1323
1324 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1325 value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_PWR_OVRD;
1326 value |= XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL_IDDQ;
1327 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1328
1329 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
1330 value |= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ_OVRD;
1331 value |= ~XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1_IDDQ;
1332 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
1333
1334 return 0;
1335 }
1336
1337 static const struct phy_ops tegra124_sata_phy_ops = {
1338 .init = tegra124_sata_phy_init,
1339 .exit = tegra124_sata_phy_exit,
1340 .power_on = tegra124_sata_phy_power_on,
1341 .power_off = tegra124_sata_phy_power_off,
1342 .owner = THIS_MODULE,
1343 };
1344
1345 static struct tegra_xusb_pad *
1346 tegra124_sata_pad_probe(struct tegra_xusb_padctl *padctl,
1347 const struct tegra_xusb_pad_soc *soc,
1348 struct device_node *np)
1349 {
1350 struct tegra_xusb_sata_pad *sata;
1351 struct tegra_xusb_pad *pad;
1352 int err;
1353
1354 sata = kzalloc(sizeof(*sata), GFP_KERNEL);
1355 if (!sata)
1356 return ERR_PTR(-ENOMEM);
1357
1358 pad = &sata->base;
1359 pad->ops = &tegra124_sata_lane_ops;
1360 pad->soc = soc;
1361
1362 err = tegra_xusb_pad_init(pad, padctl, np);
1363 if (err < 0) {
1364 kfree(sata);
1365 goto out;
1366 }
1367
1368 err = tegra_xusb_pad_register(pad, &tegra124_sata_phy_ops);
1369 if (err < 0)
1370 goto unregister;
1371
1372 dev_set_drvdata(&pad->dev, pad);
1373
1374 return pad;
1375
1376 unregister:
1377 device_unregister(&pad->dev);
1378 out:
1379 return ERR_PTR(err);
1380 }
1381
1382 static void tegra124_sata_pad_remove(struct tegra_xusb_pad *pad)
1383 {
1384 struct tegra_xusb_sata_pad *sata = to_sata_pad(pad);
1385
1386 kfree(sata);
1387 }
1388
1389 static const struct tegra_xusb_pad_ops tegra124_sata_ops = {
1390 .probe = tegra124_sata_pad_probe,
1391 .remove = tegra124_sata_pad_remove,
1392 };
1393
1394 static const struct tegra_xusb_pad_soc tegra124_sata_pad = {
1395 .name = "sata",
1396 .num_lanes = ARRAY_SIZE(tegra124_sata_lanes),
1397 .lanes = tegra124_sata_lanes,
1398 .ops = &tegra124_sata_ops,
1399 };
1400
1401 static const struct tegra_xusb_pad_soc *tegra124_pads[] = {
1402 &tegra124_usb2_pad,
1403 &tegra124_ulpi_pad,
1404 &tegra124_hsic_pad,
1405 &tegra124_pcie_pad,
1406 &tegra124_sata_pad,
1407 };
1408
1409 static int tegra124_usb2_port_enable(struct tegra_xusb_port *port)
1410 {
1411 return 0;
1412 }
1413
1414 static void tegra124_usb2_port_disable(struct tegra_xusb_port *port)
1415 {
1416 }
1417
1418 static struct tegra_xusb_lane *
1419 tegra124_usb2_port_map(struct tegra_xusb_port *port)
1420 {
1421 return tegra_xusb_find_lane(port->padctl, "usb2", port->index);
1422 }
1423
1424 static const struct tegra_xusb_port_ops tegra124_usb2_port_ops = {
1425 .enable = tegra124_usb2_port_enable,
1426 .disable = tegra124_usb2_port_disable,
1427 .map = tegra124_usb2_port_map,
1428 };
1429
1430 static int tegra124_ulpi_port_enable(struct tegra_xusb_port *port)
1431 {
1432 return 0;
1433 }
1434
1435 static void tegra124_ulpi_port_disable(struct tegra_xusb_port *port)
1436 {
1437 }
1438
1439 static struct tegra_xusb_lane *
1440 tegra124_ulpi_port_map(struct tegra_xusb_port *port)
1441 {
1442 return tegra_xusb_find_lane(port->padctl, "ulpi", port->index);
1443 }
1444
1445 static const struct tegra_xusb_port_ops tegra124_ulpi_port_ops = {
1446 .enable = tegra124_ulpi_port_enable,
1447 .disable = tegra124_ulpi_port_disable,
1448 .map = tegra124_ulpi_port_map,
1449 };
1450
1451 static int tegra124_hsic_port_enable(struct tegra_xusb_port *port)
1452 {
1453 return 0;
1454 }
1455
1456 static void tegra124_hsic_port_disable(struct tegra_xusb_port *port)
1457 {
1458 }
1459
1460 static struct tegra_xusb_lane *
1461 tegra124_hsic_port_map(struct tegra_xusb_port *port)
1462 {
1463 return tegra_xusb_find_lane(port->padctl, "hsic", port->index);
1464 }
1465
1466 static const struct tegra_xusb_port_ops tegra124_hsic_port_ops = {
1467 .enable = tegra124_hsic_port_enable,
1468 .disable = tegra124_hsic_port_disable,
1469 .map = tegra124_hsic_port_map,
1470 };
1471
1472 static int tegra124_usb3_port_enable(struct tegra_xusb_port *port)
1473 {
1474 struct tegra_xusb_usb3_port *usb3 = to_usb3_port(port);
1475 struct tegra_xusb_padctl *padctl = port->padctl;
1476 struct tegra_xusb_lane *lane = usb3->base.lane;
1477 unsigned int index = port->index, offset;
1478 u32 value;
1479
1480 value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP);
1481
1482 if (!usb3->internal)
1483 value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index);
1484 else
1485 value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_INTERNAL(index);
1486
1487 value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(index);
1488 value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(index, usb3->port);
1489 padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP);
1490
1491 /*
1492 * TODO: move this code into the PCIe/SATA PHY ->power_on() callbacks
1493 * and conditionalize based on mux function? This seems to work, but
1494 * might not be the exact proper sequence.
1495 */
1496 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
1497 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_MASK <<
1498 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT) |
1499 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_MASK <<
1500 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT) |
1501 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_MASK <<
1502 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT));
1503 value |= (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_VAL <<
1504 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_WANDER_SHIFT) |
1505 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_VAL <<
1506 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_CDR_CNTL_SHIFT) |
1507 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_VAL <<
1508 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_SHIFT);
1509
1510 if (usb3->context_saved) {
1511 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_MASK <<
1512 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
1513 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_MASK <<
1514 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT));
1515 value |= (usb3->ctle_g <<
1516 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_G_SHIFT) |
1517 (usb3->ctle_z <<
1518 XUSB_PADCTL_IOPHY_USB3_PAD_CTL2_RX_EQ_Z_SHIFT);
1519 }
1520
1521 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL2(index));
1522
1523 value = XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_VAL;
1524
1525 if (usb3->context_saved) {
1526 value &= ~((XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_MASK <<
1527 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
1528 (XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_MASK <<
1529 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT));
1530 value |= (usb3->tap1 <<
1531 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_TAP_SHIFT) |
1532 (usb3->amp <<
1533 XUSB_PADCTL_IOPHY_USB3_PAD_CTL4_DFE_CNTL_AMP_SHIFT);
1534 }
1535
1536 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_USB3_PADX_CTL4(index));
1537
1538 if (lane->pad == padctl->pcie)
1539 offset = XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL2(lane->index);
1540 else
1541 offset = XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL2;
1542
1543 value = padctl_readl(padctl, offset);
1544 value &= ~(XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_MASK <<
1545 XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT);
1546 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_VAL <<
1547 XUSB_PADCTL_IOPHY_MISC_PAD_CTL2_SPARE_IN_SHIFT;
1548 padctl_writel(padctl, value, offset);
1549
1550 if (lane->pad == padctl->pcie)
1551 offset = XUSB_PADCTL_IOPHY_MISC_PAD_PX_CTL5(lane->index);
1552 else
1553 offset = XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL5;
1554
1555 value = padctl_readl(padctl, offset);
1556 value |= XUSB_PADCTL_IOPHY_MISC_PAD_CTL5_RX_QEYE_EN;
1557 padctl_writel(padctl, value, offset);
1558
1559 /* Enable SATA PHY when SATA lane is used */
1560 if (lane->pad == padctl->sata) {
1561 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1562 value &= ~(XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_MASK <<
1563 XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_SHIFT);
1564 value |= 0x2 <<
1565 XUSB_PADCTL_IOPHY_PLL_S0_CTL1_PLL0_REFCLK_NDIV_SHIFT;
1566 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL1);
1567
1568 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL2);
1569 value &= ~((XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_MASK <<
1570 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_SHIFT) |
1571 (XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_MASK <<
1572 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_SHIFT) |
1573 (XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_MASK <<
1574 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_SHIFT) |
1575 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TCLKOUT_EN);
1576 value |= (0x7 <<
1577 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_XDIGCLK_SEL_SHIFT) |
1578 (0x8 <<
1579 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL1_CP_CNTL_SHIFT) |
1580 (0x8 <<
1581 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_PLL0_CP_CNTL_SHIFT) |
1582 XUSB_PADCTL_IOPHY_PLL_S0_CTL2_TXCLKREF_SEL;
1583 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL2);
1584
1585 value = padctl_readl(padctl, XUSB_PADCTL_IOPHY_PLL_S0_CTL3);
1586 value &= ~XUSB_PADCTL_IOPHY_PLL_S0_CTL3_RCAL_BYPASS;
1587 padctl_writel(padctl, value, XUSB_PADCTL_IOPHY_PLL_S0_CTL3);
1588 }
1589
1590 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1591 value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(index);
1592 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1593
1594 usleep_range(100, 200);
1595
1596 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1597 value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(index);
1598 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1599
1600 usleep_range(100, 200);
1601
1602 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1603 value &= ~XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(index);
1604 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1605
1606 return 0;
1607 }
1608
1609 static void tegra124_usb3_port_disable(struct tegra_xusb_port *port)
1610 {
1611 struct tegra_xusb_padctl *padctl = port->padctl;
1612 u32 value;
1613
1614 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1615 value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN_EARLY(port->index);
1616 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1617
1618 usleep_range(100, 200);
1619
1620 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1621 value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_CLAMP_EN(port->index);
1622 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1623
1624 usleep_range(250, 350);
1625
1626 value = padctl_readl(padctl, XUSB_PADCTL_ELPG_PROGRAM);
1627 value |= XUSB_PADCTL_ELPG_PROGRAM_SSPX_ELPG_VCORE_DOWN(port->index);
1628 padctl_writel(padctl, value, XUSB_PADCTL_ELPG_PROGRAM);
1629
1630 value = padctl_readl(padctl, XUSB_PADCTL_SS_PORT_MAP);
1631 value &= ~XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP_MASK(port->index);
1632 value |= XUSB_PADCTL_SS_PORT_MAP_PORTX_MAP(port->index, 0x7);
1633 padctl_writel(padctl, value, XUSB_PADCTL_SS_PORT_MAP);
1634 }
1635
1636 static const struct tegra_xusb_lane_map tegra124_usb3_map[] = {
1637 { 0, "pcie", 0 },
1638 { 1, "pcie", 1 },
1639 { 1, "sata", 0 },
1640 { 0, NULL, 0 },
1641 };
1642
1643 static struct tegra_xusb_lane *
1644 tegra124_usb3_port_map(struct tegra_xusb_port *port)
1645 {
1646 return tegra_xusb_port_find_lane(port, tegra124_usb3_map, "usb3-ss");
1647 }
1648
1649 static const struct tegra_xusb_port_ops tegra124_usb3_port_ops = {
1650 .enable = tegra124_usb3_port_enable,
1651 .disable = tegra124_usb3_port_disable,
1652 .map = tegra124_usb3_port_map,
1653 };
1654
1655 static int
1656 tegra124_xusb_read_fuse_calibration(struct tegra124_xusb_fuse_calibration *fuse)
1657 {
1658 unsigned int i;
1659 int err;
1660 u32 value;
1661
1662 err = tegra_fuse_readl(TEGRA_FUSE_SKU_CALIB_0, &value);
1663 if (err < 0)
1664 return err;
1665
1666 for (i = 0; i < ARRAY_SIZE(fuse->hs_curr_level); i++) {
1667 fuse->hs_curr_level[i] =
1668 (value >> FUSE_SKU_CALIB_HS_CURR_LEVEL_PADX_SHIFT(i)) &
1669 FUSE_SKU_CALIB_HS_CURR_LEVEL_PAD_MASK;
1670 }
1671 fuse->hs_iref_cap =
1672 (value >> FUSE_SKU_CALIB_HS_IREF_CAP_SHIFT) &
1673 FUSE_SKU_CALIB_HS_IREF_CAP_MASK;
1674 fuse->hs_term_range_adj =
1675 (value >> FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_SHIFT) &
1676 FUSE_SKU_CALIB_HS_TERM_RANGE_ADJ_MASK;
1677 fuse->hs_squelch_level =
1678 (value >> FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_SHIFT) &
1679 FUSE_SKU_CALIB_HS_SQUELCH_LEVEL_MASK;
1680
1681 return 0;
1682 }
1683
1684 static struct tegra_xusb_padctl *
1685 tegra124_xusb_padctl_probe(struct device *dev,
1686 const struct tegra_xusb_padctl_soc *soc)
1687 {
1688 struct tegra124_xusb_padctl *padctl;
1689 int err;
1690
1691 padctl = devm_kzalloc(dev, sizeof(*padctl), GFP_KERNEL);
1692 if (!padctl)
1693 return ERR_PTR(-ENOMEM);
1694
1695 padctl->base.dev = dev;
1696 padctl->base.soc = soc;
1697
1698 err = tegra124_xusb_read_fuse_calibration(&padctl->fuse);
1699 if (err < 0)
1700 return ERR_PTR(err);
1701
1702 return &padctl->base;
1703 }
1704
1705 static void tegra124_xusb_padctl_remove(struct tegra_xusb_padctl *padctl)
1706 {
1707 }
1708
1709 static const struct tegra_xusb_padctl_ops tegra124_xusb_padctl_ops = {
1710 .probe = tegra124_xusb_padctl_probe,
1711 .remove = tegra124_xusb_padctl_remove,
1712 .usb3_save_context = tegra124_usb3_save_context,
1713 .hsic_set_idle = tegra124_hsic_set_idle,
1714 };
1715
1716 static const char * const tegra124_xusb_padctl_supply_names[] = {
1717 "avdd-pll-utmip",
1718 "avdd-pll-erefe",
1719 "avdd-pex-pll",
1720 "hvdd-pex-pll-e",
1721 };
1722
1723 const struct tegra_xusb_padctl_soc tegra124_xusb_padctl_soc = {
1724 .num_pads = ARRAY_SIZE(tegra124_pads),
1725 .pads = tegra124_pads,
1726 .ports = {
1727 .usb2 = {
1728 .ops = &tegra124_usb2_port_ops,
1729 .count = 3,
1730 },
1731 .ulpi = {
1732 .ops = &tegra124_ulpi_port_ops,
1733 .count = 1,
1734 },
1735 .hsic = {
1736 .ops = &tegra124_hsic_port_ops,
1737 .count = 2,
1738 },
1739 .usb3 = {
1740 .ops = &tegra124_usb3_port_ops,
1741 .count = 2,
1742 },
1743 },
1744 .ops = &tegra124_xusb_padctl_ops,
1745 .supply_names = tegra124_xusb_padctl_supply_names,
1746 .num_supplies = ARRAY_SIZE(tegra124_xusb_padctl_supply_names),
1747 };
1748 EXPORT_SYMBOL_GPL(tegra124_xusb_padctl_soc);
1749
1750 MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>");
1751 MODULE_DESCRIPTION("NVIDIA Tegra 124 XUSB Pad Controller driver");
1752 MODULE_LICENSE("GPL v2");
Linux with added FPC-III support