2 * Copyright (c) 2016 Michal Meloun <mmel@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
32 * USB phy driver for Tegra SoCs.
34 #include <sys/param.h>
35 #include <sys/systm.h>
37 #include <sys/kernel.h>
38 #include <sys/module.h>
39 #include <sys/malloc.h>
42 #include <machine/bus.h>
43 #include <machine/fdt.h>
45 #include <dev/extres/clk/clk.h>
46 #include <dev/extres/hwreset/hwreset.h>
47 #include <dev/extres/phy/phy.h>
48 #include <dev/extres/regulator/regulator.h>
49 #include <dev/fdt/fdt_common.h>
50 #include <dev/fdt/fdt_pinctrl.h>
51 #include <dev/ofw/openfirm.h>
52 #include <dev/ofw/ofw_bus.h>
53 #include <dev/ofw/ofw_bus_subr.h>
57 #define CTRL_ICUSB_CTRL 0x15c
58 #define ICUSB_CTR_IC_ENB1 (1 << 3)
60 #define CTRL_USB_USBMODE 0x1f8
61 #define USB_USBMODE_MASK (3 << 0)
62 #define USB_USBMODE_HOST (3 << 0)
63 #define USB_USBMODE_DEVICE (2 << 0)
65 #define CTRL_USB_HOSTPC1_DEVLC 0x1b4
66 #define USB_HOSTPC1_DEVLC_PTS(x) (((x) & 0x7) << 29)
67 #define USB_HOSTPC1_DEVLC_STS (1 << 28)
68 #define USB_HOSTPC1_DEVLC_PHCD (1 << 22)
71 #define IF_USB_SUSP_CTRL 0x400
72 #define FAST_WAKEUP_RESP (1 << 26)
73 #define UTMIP_SUSPL1_SET (1 << 25)
74 #define USB_WAKEUP_DEBOUNCE_COUNT(x) (((x) & 0x7) << 16)
75 #define USB_SUSP_SET (1 << 14)
76 #define UTMIP_PHY_ENB (1 << 12)
77 #define UTMIP_RESET (1 << 11)
78 #define USB_SUSP_POL (1 << 10)
79 #define USB_PHY_CLK_VALID_INT_ENB (1 << 9)
80 #define USB_PHY_CLK_VALID_INT_STS (1 << 8)
81 #define USB_PHY_CLK_VALID (1 << 7)
82 #define USB_CLKEN (1 << 6)
83 #define USB_SUSP_CLR (1 << 5)
84 #define USB_WAKE_ON_DISCON_EN_DEV (1 << 4)
85 #define USB_WAKE_ON_CNNT_EN_DEV (1 << 3)
86 #define USB_WAKE_ON_RESUME_EN (1 << 2)
87 #define USB_WAKEUP_INT_ENB (1 << 1)
88 #define USB_WAKEUP_INT_STS (1 << 0)
90 #define IF_USB_PHY_VBUS_SENSORS 0x404
91 #define B_SESS_END_SW_VALUE (1 << 4)
92 #define B_SESS_END_SW_EN (1 << 3)
95 #define UTMIP_XCVR_CFG0 0x808
96 #define UTMIP_XCVR_HSSLEW_MSB(x) ((((x) & 0x1fc) >> 2) << 25)
97 #define UTMIP_XCVR_SETUP_MSB(x) ((((x) & 0x70) >> 4) << 22)
98 #define UTMIP_XCVR_LSBIAS_SEL (1 << 21)
99 #define UTMIP_XCVR_DISCON_METHOD (1 << 20)
100 #define UTMIP_FORCE_PDZI_POWERUP (1 << 19)
101 #define UTMIP_FORCE_PDZI_POWERDOWN (1 << 18)
102 #define UTMIP_FORCE_PD2_POWERUP (1 << 17)
103 #define UTMIP_FORCE_PD2_POWERDOWN (1 << 16)
104 #define UTMIP_FORCE_PD_POWERUP (1 << 15)
105 #define UTMIP_FORCE_PD_POWERDOWN (1 << 14)
106 #define UTMIP_XCVR_TERMEN (1 << 13)
107 #define UTMIP_XCVR_HSLOOPBACK (1 << 12)
108 #define UTMIP_XCVR_LSFSLEW(x) (((x) & 0x3) << 10)
109 #define UTMIP_XCVR_LSRSLEW(x) (((x) & 0x3) << 8)
110 #define UTMIP_XCVR_FSSLEW(x) (((x) & 0x3) << 6)
111 #define UTMIP_XCVR_HSSLEW(x) (((x) & 0x3) << 4)
112 #define UTMIP_XCVR_SETUP(x) (((x) & 0xf) << 0)
114 #define UTMIP_BIAS_CFG0 0x80C
115 #define UTMIP_IDDIG_C_VAL (1 << 30)
116 #define UTMIP_IDDIG_C_SEL (1 << 29)
117 #define UTMIP_IDDIG_B_VAL (1 << 28)
118 #define UTMIP_IDDIG_B_SEL (1 << 27)
119 #define UTMIP_IDDIG_A_VAL (1 << 26)
120 #define UTMIP_IDDIG_A_SEL (1 << 25)
121 #define UTMIP_HSDISCON_LEVEL_MSB(x) ((((x) & 0x4) >> 2) << 24)
122 #define UTMIP_IDPD_VAL (1 << 23)
123 #define UTMIP_IDPD_SEL (1 << 22)
124 #define UTMIP_IDDIG_VAL (1 << 21)
125 #define UTMIP_IDDIG_SEL (1 << 20)
126 #define UTMIP_GPI_VAL (1 << 19)
127 #define UTMIP_GPI_SEL (1 << 18)
128 #define UTMIP_ACTIVE_TERM_OFFSET(x) (((x) & 0x7) << 15)
129 #define UTMIP_ACTIVE_PULLUP_OFFSET(x) (((x) & 0x7) << 12)
130 #define UTMIP_OTGPD (1 << 11)
131 #define UTMIP_BIASPD (1 << 10)
132 #define UTMIP_VBUS_LEVEL_LEVEL(x) (((x) & 0x3) << 8)
133 #define UTMIP_SESS_LEVEL_LEVEL(x) (((x) & 0x3) << 6)
134 #define UTMIP_HSCHIRP_LEVEL(x) (((x) & 0x3) << 4)
135 #define UTMIP_HSDISCON_LEVEL(x) (((x) & 0x3) << 2)
136 #define UTMIP_HSSQUELCH_LEVEL(x) (((x) & 0x3) << 0)
139 #define UTMIP_HSRX_CFG0 0x810
140 #define UTMIP_KEEP_PATT_ON_ACTIVE(x) (((x) & 0x3) << 30)
141 #define UTMIP_ALLOW_CONSEC_UPDN (1 << 29)
142 #define UTMIP_REALIGN_ON_NEW_PKT (1 << 28)
143 #define UTMIP_PCOUNT_UPDN_DIV(x) (((x) & 0xf) << 24)
144 #define UTMIP_SQUELCH_EOP_DLY(x) (((x) & 0x7) << 21)
145 #define UTMIP_NO_STRIPPING (1 << 20)
146 #define UTMIP_IDLE_WAIT(x) (((x) & 0x1f) << 15)
147 #define UTMIP_ELASTIC_LIMIT(x) (((x) & 0x1f) << 10)
148 #define UTMIP_ELASTIC_OVERRUN_DISABLE (1 << 9)
149 #define UTMIP_ELASTIC_UNDERRUN_DISABLE (1 << 8)
150 #define UTMIP_PASS_CHIRP (1 << 7)
151 #define UTMIP_PASS_FEEDBACK (1 << 6)
152 #define UTMIP_PCOUNT_INERTIA(x) (((x) & 0x3) << 4)
153 #define UTMIP_PHASE_ADJUST(x) (((x) & 0x3) << 2)
154 #define UTMIP_THREE_SYNCBITS (1 << 1)
155 #define UTMIP_USE4SYNC_TRAN (1 << 0)
157 #define UTMIP_HSRX_CFG1 0x814
158 #define UTMIP_HS_SYNC_START_DLY(x) (((x) & 0x1F) << 1)
159 #define UTMIP_HS_ALLOW_KEEP_ALIVE (1 << 0)
161 #define UTMIP_TX_CFG0 0x820
162 #define UTMIP_FS_PREAMBLE_J (1 << 19)
163 #define UTMIP_FS_POSTAMBLE_OUTPUT_ENABLE (1 << 18)
164 #define UTMIP_FS_PREAMBLE_OUTPUT_ENABLE (1 << 17)
165 #define UTMIP_FSLS_ALLOW_SOP_TX_STUFF_ERR (1 << 16)
166 #define UTMIP_HS_READY_WAIT_FOR_VALID (1 << 15)
167 #define UTMIP_HS_TX_IPG_DLY(x) (((x) & 0x1f) << 10)
168 #define UTMIP_HS_DISCON_EOP_ONLY (1 << 9)
169 #define UTMIP_HS_DISCON_DISABLE (1 << 8)
170 #define UTMIP_HS_POSTAMBLE_OUTPUT_ENABLE (1 << 7)
171 #define UTMIP_HS_PREAMBLE_OUTPUT_ENABLE (1 << 6)
172 #define UTMIP_SIE_RESUME_ON_LINESTATE (1 << 5)
173 #define UTMIP_SOF_ON_NO_STUFF (1 << 4)
174 #define UTMIP_SOF_ON_NO_ENCODE (1 << 3)
175 #define UTMIP_NO_STUFFING (1 << 2)
176 #define UTMIP_NO_ENCODING (1 << 1)
177 #define UTMIP_NO_SYNC_NO_EOP (1 << 0)
179 #define UTMIP_MISC_CFG0 0x824
180 #define UTMIP_DPDM_OBSERVE_SEL(x) (((x) & 0xf) << 27)
181 #define UTMIP_DPDM_OBSERVE (1 << 26)
182 #define UTMIP_KEEP_XCVR_PD_ON_SOFT_DISCON (1 << 25)
183 #define UTMIP_ALLOW_LS_ON_SOFT_DISCON (1 << 24)
184 #define UTMIP_FORCE_FS_DISABLE_ON_DEV_CHIRP (1 << 23)
185 #define UTMIP_SUSPEND_EXIT_ON_EDGE (1 << 22)
186 #define UTMIP_LS_TO_FS_SKIP_4MS (1 << 21)
187 #define UTMIP_INJECT_ERROR_TYPE(x) (((x) & 0x3) << 19)
188 #define UTMIP_FORCE_HS_CLOCK_ON (1 << 18)
189 #define UTMIP_DISABLE_HS_TERM (1 << 17)
190 #define UTMIP_FORCE_HS_TERM (1 << 16)
191 #define UTMIP_DISABLE_PULLUP_DP (1 << 15)
192 #define UTMIP_DISABLE_PULLUP_DM (1 << 14)
193 #define UTMIP_DISABLE_PULLDN_DP (1 << 13)
194 #define UTMIP_DISABLE_PULLDN_DM (1 << 12)
195 #define UTMIP_FORCE_PULLUP_DP (1 << 11)
196 #define UTMIP_FORCE_PULLUP_DM (1 << 10)
197 #define UTMIP_FORCE_PULLDN_DP (1 << 9)
198 #define UTMIP_FORCE_PULLDN_DM (1 << 8)
199 #define UTMIP_STABLE_COUNT(x) (((x) & 0x7) << 5)
200 #define UTMIP_STABLE_ALL (1 << 4)
201 #define UTMIP_NO_FREE_ON_SUSPEND (1 << 3)
202 #define UTMIP_NEVER_FREE_RUNNING_TERMS (1 << 2)
203 #define UTMIP_ALWAYS_FREE_RUNNING_TERMS (1 << 1)
204 #define UTMIP_COMB_TERMS (1 << 0)
206 #define UTMIP_MISC_CFG1 0x828
207 #define UTMIP_PHY_XTAL_CLOCKEN (1 << 30)
209 #define UTMIP_DEBOUNCE_CFG0 0x82C
210 #define UTMIP_BIAS_DEBOUNCE_B(x) (((x) & 0xffff) << 16)
211 #define UTMIP_BIAS_DEBOUNCE_A(x) (((x) & 0xffff) << 0)
213 #define UTMIP_BAT_CHRG_CFG0 0x830
214 #define UTMIP_CHRG_DEBOUNCE_TIMESCALE(x) (((x) & 0x1f) << 8)
215 #define UTMIP_OP_I_SRC_ENG (1 << 5)
216 #define UTMIP_ON_SRC_ENG (1 << 4)
217 #define UTMIP_OP_SRC_ENG (1 << 3)
218 #define UTMIP_ON_SINK_ENG (1 << 2)
219 #define UTMIP_OP_SINK_ENG (1 << 1)
220 #define UTMIP_PD_CHRG (1 << 0)
222 #define UTMIP_SPARE_CFG0 0x834
223 #define FUSE_HS_IREF_CAP_CFG (1 << 7)
224 #define FUSE_HS_SQUELCH_LEVEL (1 << 6)
225 #define FUSE_SPARE (1 << 5)
226 #define FUSE_TERM_RANGE_ADJ_SEL (1 << 4)
227 #define FUSE_SETUP_SEL (1 << 3)
228 #define HS_RX_LATE_SQUELCH (1 << 2)
229 #define HS_RX_FLUSH_ALAP (1 << 1)
230 #define HS_RX_IPG_ERROR_ENABLE (1 << 0)
232 #define UTMIP_XCVR_CFG1 0x838
233 #define UTMIP_XCVR_RPU_RANGE_ADJ(x) (((x) & 0x3) << 26)
234 #define UTMIP_XCVR_HS_IREF_CAP(x) (((x) & 0x3) << 24)
235 #define UTMIP_XCVR_SPARE(x) (((x) & 0x3) << 22)
236 #define UTMIP_XCVR_TERM_RANGE_ADJ(x) (((x) & 0xf) << 18)
237 #define UTMIP_RCTRL_SW_SET (1 << 17)
238 #define UTMIP_RCTRL_SW_VAL(x) (((x) & 0x1f) << 12)
239 #define UTMIP_TCTRL_SW_SET (1 << 11)
240 #define UTMIP_TCTRL_SW_VAL(x) (((x) & 0x1f) << 6)
241 #define UTMIP_FORCE_PDDR_POWERUP (1 << 5)
242 #define UTMIP_FORCE_PDDR_POWERDOWN (1 << 4)
243 #define UTMIP_FORCE_PDCHRP_POWERUP (1 << 3)
244 #define UTMIP_FORCE_PDCHRP_POWERDOWN (1 << 2)
245 #define UTMIP_FORCE_PDDISC_POWERUP (1 << 1)
246 #define UTMIP_FORCE_PDDISC_POWERDOWN (1 << 0)
248 #define UTMIP_BIAS_CFG1 0x83c
249 #define UTMIP_BIAS_DEBOUNCE_TIMESCALE(x) (((x) & 0x3f) << 8)
250 #define UTMIP_BIAS_PDTRK_COUNT(x) (((x) & 0x1f) << 3)
251 #define UTMIP_VBUS_WAKEUP_POWERDOWN (1 << 2)
252 #define UTMIP_FORCE_PDTRK_POWERUP (1 << 1)
253 #define UTMIP_FORCE_PDTRK_POWERDOWN (1 << 0)
255 static int usbpby_enable_cnt;
258 USB_IFC_TYPE_UNKNOWN = 0,
264 USB_DR_MODE_UNKNOWN = 0,
270 struct usbphy_softc {
272 struct resource *mem_res;
273 struct resource *pads_res;
277 regulator_t supply_vbus;
279 hwreset_t reset_pads;
280 enum usb_ifc_type ifc_type;
281 enum usb_dr_mode dr_mode;
285 int hssync_start_delay;
295 int xcvr_setup_use_fuses;
298 static struct ofw_compat_data compat_data[] = {
299 {"nvidia,tegra30-usb-phy", 1},
303 #define RD4(sc, offs) \
304 bus_read_4(sc->mem_res, offs)
306 #define WR4(sc, offs, val) \
307 bus_write_4(sc->mem_res, offs, val)
310 reg_wait(struct usbphy_softc *sc, uint32_t reg, uint32_t mask, uint32_t val)
314 for (i = 0; i < 1000; i++) {
315 if ((RD4(sc, reg) & mask) == val)
323 usbphy_utmi_phy_clk(struct usbphy_softc *sc, bool enable)
328 val = RD4(sc, CTRL_USB_HOSTPC1_DEVLC);
330 val &= ~USB_HOSTPC1_DEVLC_PHCD;
332 val |= USB_HOSTPC1_DEVLC_PHCD;
333 WR4(sc, CTRL_USB_HOSTPC1_DEVLC, val);
335 rv = reg_wait(sc, IF_USB_SUSP_CTRL, USB_PHY_CLK_VALID,
336 enable ? USB_PHY_CLK_VALID: 0);
338 device_printf(sc->dev, "USB phy clock timeout.\n");
345 usbphy_utmi_enable(struct usbphy_softc *sc)
351 val = RD4(sc, IF_USB_SUSP_CTRL);
353 WR4(sc, IF_USB_SUSP_CTRL, val);
356 val = RD4(sc, UTMIP_TX_CFG0);
357 val |= UTMIP_FS_PREAMBLE_J;
358 WR4(sc, UTMIP_TX_CFG0, val);
360 val = RD4(sc, UTMIP_HSRX_CFG0);
361 val &= ~UTMIP_IDLE_WAIT(~0);
362 val &= ~UTMIP_ELASTIC_LIMIT(~0);
363 val |= UTMIP_IDLE_WAIT(sc->idle_wait_delay);
364 val |= UTMIP_ELASTIC_LIMIT(sc->elastic_limit);
365 WR4(sc, UTMIP_HSRX_CFG0, val);
367 val = RD4(sc, UTMIP_HSRX_CFG1);
368 val &= ~UTMIP_HS_SYNC_START_DLY(~0);
369 val |= UTMIP_HS_SYNC_START_DLY(sc->hssync_start_delay);
370 WR4(sc, UTMIP_HSRX_CFG1, val);
372 val = RD4(sc, UTMIP_DEBOUNCE_CFG0);
373 val &= ~UTMIP_BIAS_DEBOUNCE_A(~0);
374 val |= UTMIP_BIAS_DEBOUNCE_A(0x7530); /* For 12MHz */
375 WR4(sc, UTMIP_DEBOUNCE_CFG0, val);
377 val = RD4(sc, UTMIP_MISC_CFG0);
378 val &= ~UTMIP_SUSPEND_EXIT_ON_EDGE;
379 WR4(sc, UTMIP_MISC_CFG0, val);
381 if (sc->dr_mode == USB_DR_MODE_DEVICE) {
382 val = RD4(sc,IF_USB_SUSP_CTRL);
383 val &= ~USB_WAKE_ON_CNNT_EN_DEV;
384 val &= ~USB_WAKE_ON_DISCON_EN_DEV;
385 WR4(sc, IF_USB_SUSP_CTRL, val);
387 val = RD4(sc, UTMIP_BAT_CHRG_CFG0);
388 val &= ~UTMIP_PD_CHRG;
389 WR4(sc, UTMIP_BAT_CHRG_CFG0, val);
391 val = RD4(sc, UTMIP_BAT_CHRG_CFG0);
392 val |= UTMIP_PD_CHRG;
393 WR4(sc, UTMIP_BAT_CHRG_CFG0, val);
397 if (usbpby_enable_cnt == 1) {
398 rv = hwreset_deassert(sc->reset_pads);
400 device_printf(sc->dev,
401 "Cannot unreset 'utmi-pads' reset\n");
404 rv = clk_enable(sc->clk_pads);
406 device_printf(sc->dev,
407 "Cannot enable 'utmi-pads' clock\n");
411 val = bus_read_4(sc->pads_res, UTMIP_BIAS_CFG0);
413 val &= ~UTMIP_BIASPD;
414 val &= ~UTMIP_HSSQUELCH_LEVEL(~0);
415 val &= ~UTMIP_HSDISCON_LEVEL(~0);
416 val &= ~UTMIP_HSDISCON_LEVEL_MSB(~0);
417 val |= UTMIP_HSSQUELCH_LEVEL(sc->hssquelch_level);
418 val |= UTMIP_HSDISCON_LEVEL(sc->hsdiscon_level);
419 val |= UTMIP_HSDISCON_LEVEL_MSB(sc->hsdiscon_level);
420 bus_write_4(sc->pads_res, UTMIP_BIAS_CFG0, val);
422 rv = clk_disable(sc->clk_pads);
424 device_printf(sc->dev,
425 "Cannot disable 'utmi-pads' clock\n");
430 val = RD4(sc, UTMIP_XCVR_CFG0);
431 val &= ~UTMIP_FORCE_PD_POWERDOWN;
432 val &= ~UTMIP_FORCE_PD2_POWERDOWN ;
433 val &= ~UTMIP_FORCE_PDZI_POWERDOWN;
434 val &= ~UTMIP_XCVR_LSBIAS_SEL;
435 val &= ~UTMIP_XCVR_LSFSLEW(~0);
436 val &= ~UTMIP_XCVR_LSRSLEW(~0);
437 val &= ~UTMIP_XCVR_HSSLEW(~0);
438 val &= ~UTMIP_XCVR_HSSLEW_MSB(~0);
439 val |= UTMIP_XCVR_LSFSLEW(sc->xcvr_lsfslew);
440 val |= UTMIP_XCVR_LSRSLEW(sc->xcvr_lsrslew);
441 val |= UTMIP_XCVR_HSSLEW(sc->xcvr_hsslew);
442 val |= UTMIP_XCVR_HSSLEW_MSB(sc->xcvr_hsslew);
443 if (!sc->xcvr_setup_use_fuses) {
444 val &= ~UTMIP_XCVR_SETUP(~0);
445 val &= ~UTMIP_XCVR_SETUP_MSB(~0);
446 val |= UTMIP_XCVR_SETUP(sc->xcvr_setup);
447 val |= UTMIP_XCVR_SETUP_MSB(sc->xcvr_setup);
449 WR4(sc, UTMIP_XCVR_CFG0, val);
451 val = RD4(sc, UTMIP_XCVR_CFG1);
452 val &= ~UTMIP_FORCE_PDDISC_POWERDOWN;
453 val &= ~UTMIP_FORCE_PDCHRP_POWERDOWN;
454 val &= ~UTMIP_FORCE_PDDR_POWERDOWN;
455 val &= ~UTMIP_XCVR_TERM_RANGE_ADJ(~0);
456 val |= UTMIP_XCVR_TERM_RANGE_ADJ(sc->term_range_adj);
457 WR4(sc, UTMIP_XCVR_CFG1, val);
460 val = RD4(sc, UTMIP_BIAS_CFG1);
461 val &= ~UTMIP_BIAS_PDTRK_COUNT(~0);
462 val |= UTMIP_BIAS_PDTRK_COUNT(0x5);
463 WR4(sc, UTMIP_BIAS_CFG1, val);
465 val = RD4(sc, UTMIP_SPARE_CFG0);
466 if (sc->xcvr_setup_use_fuses)
467 val |= FUSE_SETUP_SEL;
469 val &= ~FUSE_SETUP_SEL;
470 WR4(sc, UTMIP_SPARE_CFG0, val);
472 val = RD4(sc, IF_USB_SUSP_CTRL);
473 val |= UTMIP_PHY_ENB;
474 WR4(sc, IF_USB_SUSP_CTRL, val);
476 val = RD4(sc, IF_USB_SUSP_CTRL);
478 WR4(sc, IF_USB_SUSP_CTRL, val);
480 usbphy_utmi_phy_clk(sc, true);
482 val = RD4(sc, CTRL_USB_USBMODE);
483 val &= ~USB_USBMODE_MASK;
484 if (sc->dr_mode == USB_DR_MODE_HOST)
485 val |= USB_USBMODE_HOST;
487 val |= USB_USBMODE_DEVICE;
488 WR4(sc, CTRL_USB_USBMODE, val);
490 val = RD4(sc, CTRL_USB_HOSTPC1_DEVLC);
491 val &= ~USB_HOSTPC1_DEVLC_PTS(~0);
492 val |= USB_HOSTPC1_DEVLC_PTS(0);
493 WR4(sc, CTRL_USB_HOSTPC1_DEVLC, val);
499 usbphy_utmi_disable(struct usbphy_softc *sc)
504 usbphy_utmi_phy_clk(sc, false);
506 if (sc->dr_mode == USB_DR_MODE_DEVICE) {
507 val = RD4(sc, IF_USB_SUSP_CTRL);
508 val &= ~USB_WAKEUP_DEBOUNCE_COUNT(~0);
509 val |= USB_WAKE_ON_CNNT_EN_DEV;
510 val |= USB_WAKEUP_DEBOUNCE_COUNT(5);
511 WR4(sc, IF_USB_SUSP_CTRL, val);
514 val = RD4(sc, IF_USB_SUSP_CTRL);
516 WR4(sc, IF_USB_SUSP_CTRL, val);
518 val = RD4(sc, UTMIP_BAT_CHRG_CFG0);
519 val |= UTMIP_PD_CHRG;
520 WR4(sc, UTMIP_BAT_CHRG_CFG0, val);
522 val = RD4(sc, UTMIP_XCVR_CFG0);
523 val |= UTMIP_FORCE_PD_POWERDOWN;
524 val |= UTMIP_FORCE_PD2_POWERDOWN;
525 val |= UTMIP_FORCE_PDZI_POWERDOWN;
526 WR4(sc, UTMIP_XCVR_CFG0, val);
528 val = RD4(sc, UTMIP_XCVR_CFG1);
529 val |= UTMIP_FORCE_PDDISC_POWERDOWN;
530 val |= UTMIP_FORCE_PDCHRP_POWERDOWN;
531 val |= UTMIP_FORCE_PDDR_POWERDOWN;
532 WR4(sc, UTMIP_XCVR_CFG1, val);
535 if (usbpby_enable_cnt <= 0) {
536 rv = clk_enable(sc->clk_pads);
538 device_printf(sc->dev,
539 "Cannot enable 'utmi-pads' clock\n");
542 val =bus_read_4(sc->pads_res, UTMIP_BIAS_CFG0);
545 bus_write_4(sc->pads_res, UTMIP_BIAS_CFG0, val);
547 rv = clk_disable(sc->clk_pads);
549 device_printf(sc->dev,
550 "Cannot disable 'utmi-pads' clock\n");
558 usbphy_phy_enable(device_t dev, int id, bool enable)
560 struct usbphy_softc *sc;
563 sc = device_get_softc(dev);
565 if (sc->ifc_type != USB_IFC_TYPE_UTMI) {
566 device_printf(sc->dev,
567 "Only UTMI interface is supported.\n");
571 rv = usbphy_utmi_enable(sc);
573 rv = usbphy_utmi_disable(sc);
578 static enum usb_ifc_type
579 usb_get_ifc_mode(device_t dev, phandle_t node, char *name)
583 enum usb_ifc_type ret;
585 rv = OF_getprop_alloc(node, name, 1, (void **)&tmpstr);
587 return (USB_IFC_TYPE_UNKNOWN);
589 ret = USB_IFC_TYPE_UNKNOWN;
590 if (strcmp(tmpstr, "utmi") == 0)
591 ret = USB_IFC_TYPE_UTMI;
592 else if (strcmp(tmpstr, "ulpi") == 0)
593 ret = USB_IFC_TYPE_ULPI;
595 device_printf(dev, "Unsupported phy type: %s\n", tmpstr);
596 free(tmpstr, M_OFWPROP);
600 static enum usb_dr_mode
601 usb_get_dr_mode(device_t dev, phandle_t node, char *name)
605 enum usb_dr_mode ret;
607 rv = OF_getprop_alloc(node, name, 1, (void **)&tmpstr);
609 return (USB_DR_MODE_UNKNOWN);
611 ret = USB_DR_MODE_UNKNOWN;
612 if (strcmp(tmpstr, "device") == 0)
613 ret = USB_DR_MODE_DEVICE;
614 else if (strcmp(tmpstr, "host") == 0)
615 ret = USB_DR_MODE_HOST;
616 else if (strcmp(tmpstr, "otg") == 0)
617 ret = USB_DR_MODE_OTG;
619 device_printf(dev, "Unknown dr mode: %s\n", tmpstr);
620 free(tmpstr, M_OFWPROP);
625 usbphy_utmi_read_params(struct usbphy_softc *sc, phandle_t node)
629 rv = OF_getencprop(node, "nvidia,hssync-start-delay",
630 &sc->hssync_start_delay, sizeof (sc->hssync_start_delay));
634 rv = OF_getencprop(node, "nvidia,elastic-limit",
635 &sc->elastic_limit, sizeof (sc->elastic_limit));
639 rv = OF_getencprop(node, "nvidia,idle-wait-delay",
640 &sc->idle_wait_delay, sizeof (sc->idle_wait_delay));
644 rv = OF_getencprop(node, "nvidia,term-range-adj",
645 &sc->term_range_adj, sizeof (sc->term_range_adj));
649 rv = OF_getencprop(node, "nvidia,xcvr-lsfslew",
650 &sc->xcvr_lsfslew, sizeof (sc->xcvr_lsfslew));
654 rv = OF_getencprop(node, "nvidia,xcvr-lsrslew",
655 &sc->xcvr_lsrslew, sizeof (sc->xcvr_lsrslew));
659 rv = OF_getencprop(node, "nvidia,xcvr-hsslew",
660 &sc->xcvr_hsslew, sizeof (sc->xcvr_hsslew));
664 rv = OF_getencprop(node, "nvidia,hssquelch-level",
665 &sc->hssquelch_level, sizeof (sc->hssquelch_level));
669 rv = OF_getencprop(node, "nvidia,hsdiscon-level",
670 &sc->hsdiscon_level, sizeof (sc->hsdiscon_level));
674 rv = OF_getproplen(node, "nvidia,xcvr-setup-use-fuses");
676 sc->xcvr_setup_use_fuses = 1;
678 rv = OF_getencprop(node, "nvidia,xcvr-setup",
679 &sc->xcvr_setup, sizeof (sc->xcvr_setup));
688 usbphy_probe(device_t dev)
691 if (!ofw_bus_status_okay(dev))
694 if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
697 device_set_desc(dev, "Tegra USB phy");
698 return (BUS_PROBE_DEFAULT);
702 usbphy_attach(device_t dev)
704 struct usbphy_softc * sc;
708 sc = device_get_softc(dev);
712 sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
713 RF_ACTIVE | RF_SHAREABLE);
714 if (sc->mem_res == NULL) {
715 device_printf(dev, "Cannot allocate memory resources\n");
720 sc->pads_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
721 RF_ACTIVE | RF_SHAREABLE);
722 if (sc->mem_res == NULL) {
723 device_printf(dev, "Cannot allocate memory resources\n");
727 node = ofw_bus_get_node(dev);
729 rv = hwreset_get_by_ofw_name(sc->dev, "usb", &sc->reset_usb);
731 device_printf(dev, "Cannot get 'usb' reset\n");
734 rv = hwreset_get_by_ofw_name(sc->dev, "utmi-pads", &sc->reset_pads);
736 device_printf(dev, "Cannot get 'utmi-pads' reset\n");
740 rv = clk_get_by_ofw_name(sc->dev, "reg", &sc->clk_reg);
742 device_printf(sc->dev, "Cannot get 'reg' clock\n");
745 rv = clk_get_by_ofw_name(sc->dev, "pll_u", &sc->clk_pllu);
747 device_printf(sc->dev, "Cannot get 'pll_u' clock\n");
750 rv = clk_get_by_ofw_name(sc->dev, "utmi-pads", &sc->clk_pads);
752 device_printf(sc->dev, "Cannot get 'utmi-pads' clock\n");
756 rv = hwreset_deassert(sc->reset_usb);
758 device_printf(dev, "Cannot unreset 'usb' reset\n");
762 rv = clk_enable(sc->clk_pllu);
764 device_printf(sc->dev, "Cannot enable 'pllu' clock\n");
767 rv = clk_enable(sc->clk_reg);
769 device_printf(sc->dev, "Cannot enable 'reg' clock\n");
772 if (OF_hasprop(node, "nvidia,has-utmi-pad-registers"))
773 sc->have_utmi_regs = true;
775 sc->dr_mode = usb_get_dr_mode(dev, node, "dr_mode");
776 if (sc->dr_mode == USB_DR_MODE_UNKNOWN)
777 sc->dr_mode = USB_DR_MODE_HOST;
779 sc->ifc_type = usb_get_ifc_mode(dev, node, "phy_type");
781 /* We supports only utmi phy mode for now .... */
782 if (sc->ifc_type != USB_IFC_TYPE_UTMI) {
783 device_printf(dev, "Unsupported phy type\n");
786 rv = usbphy_utmi_read_params(sc, node);
790 if (OF_hasprop(node, "vbus-supply")) {
791 rv = regulator_get_by_ofw_property(sc->dev, "vbus-supply",
794 device_printf(sc->dev,
795 "Cannot get \"vbus\" regulator\n");
798 rv = regulator_enable(sc->supply_vbus);
800 device_printf(sc->dev,
801 "Cannot enable \"vbus\" regulator\n");
806 phy_register_provider(dev);
811 usbphy_detach(device_t dev)
814 /* This device is always present. */
818 static device_method_t tegra_usbphy_methods[] = {
819 /* Device interface */
820 DEVMETHOD(device_probe, usbphy_probe),
821 DEVMETHOD(device_attach, usbphy_attach),
822 DEVMETHOD(device_detach, usbphy_detach),
825 DEVMETHOD(phy_enable, usbphy_phy_enable),
830 static driver_t tegra_usbphy_driver = {
832 tegra_usbphy_methods,
833 sizeof(struct usbphy_softc),
836 static devclass_t tegra_usbphy_devclass;
838 EARLY_DRIVER_MODULE(tegra_usbphy, simplebus, tegra_usbphy_driver,
839 tegra_usbphy_devclass, 0, 0, 79);