blob: b9c85914701e7af81fc16e45ccd52f21d2af2017 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +02002/*
3 * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
4 * Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +02005 */
6
7#include <common.h>
8#include <dm.h>
9#include <dm/device.h>
10#include <generic-phy.h>
11#include <asm/io.h>
12#include <asm/arch/sys_proto.h>
13#include <syscon.h>
14#include <regmap.h>
15
16/* PLLCTRL Registers */
17#define PLL_STATUS 0x00000004
18#define PLL_GO 0x00000008
19#define PLL_CONFIGURATION1 0x0000000C
20#define PLL_CONFIGURATION2 0x00000010
21#define PLL_CONFIGURATION3 0x00000014
22#define PLL_CONFIGURATION4 0x00000020
23
24#define PLL_REGM_MASK 0x001FFE00
25#define PLL_REGM_SHIFT 9
26#define PLL_REGM_F_MASK 0x0003FFFF
27#define PLL_REGM_F_SHIFT 0
28#define PLL_REGN_MASK 0x000001FE
29#define PLL_REGN_SHIFT 1
30#define PLL_SELFREQDCO_MASK 0x0000000E
31#define PLL_SELFREQDCO_SHIFT 1
32#define PLL_SD_MASK 0x0003FC00
33#define PLL_SD_SHIFT 10
34#define SET_PLL_GO 0x1
35#define PLL_TICOPWDN BIT(16)
36#define PLL_LDOPWDN BIT(15)
37#define PLL_LOCK 0x2
38#define PLL_IDLE 0x1
39
40/* Software rest for the SATA PLL (in CTRL_CORE_SMA_SW_0 register)*/
41#define SATA_PLL_SOFT_RESET (1<<18)
42
43/* PHY POWER CONTROL Register */
44#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK 0x003FC000
45#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT 0xE
46
47#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_MASK 0xFFC00000
48#define OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT 0x16
49
50#define OMAP_CTRL_PIPE3_PHY_TX_RX_POWERON 0x3
51#define OMAP_CTRL_PIPE3_PHY_TX_RX_POWEROFF 0x0
52
Roger Quadros277d5d12019-11-06 16:21:17 +020053/* PHY RX Registers */
54#define PIPE3_PHY_RX_ANA_PROGRAMMABILITY 0x0000000C
55#define INTERFACE_MASK GENMASK(31, 27)
56#define INTERFACE_SHIFT 27
57#define INTERFACE_MODE_USBSS BIT(4)
58#define INTERFACE_MODE_SATA_1P5 BIT(3)
59#define INTERFACE_MODE_SATA_3P0 BIT(2)
60#define INTERFACE_MODE_PCIE BIT(0)
61
62#define LOSD_MASK GENMASK(17, 14)
63#define LOSD_SHIFT 14
64#define MEM_PLLDIV GENMASK(6, 5)
65
66#define PIPE3_PHY_RX_TRIM 0x0000001C
67#define MEM_DLL_TRIM_SEL_MASK GENMASK(31, 30)
68#define MEM_DLL_TRIM_SHIFT 30
69
70#define PIPE3_PHY_RX_DLL 0x00000024
71#define MEM_DLL_PHINT_RATE_MASK GENMASK(31, 30)
72#define MEM_DLL_PHINT_RATE_SHIFT 30
73
74#define PIPE3_PHY_RX_DIGITAL_MODES 0x00000028
75#define MEM_HS_RATE_MASK GENMASK(28, 27)
76#define MEM_HS_RATE_SHIFT 27
77#define MEM_OVRD_HS_RATE BIT(26)
78#define MEM_OVRD_HS_RATE_SHIFT 26
79#define MEM_CDR_FASTLOCK BIT(23)
80#define MEM_CDR_FASTLOCK_SHIFT 23
81#define MEM_CDR_LBW_MASK GENMASK(22, 21)
82#define MEM_CDR_LBW_SHIFT 21
83#define MEM_CDR_STEPCNT_MASK GENMASK(20, 19)
84#define MEM_CDR_STEPCNT_SHIFT 19
85#define MEM_CDR_STL_MASK GENMASK(18, 16)
86#define MEM_CDR_STL_SHIFT 16
87#define MEM_CDR_THR_MASK GENMASK(15, 13)
88#define MEM_CDR_THR_SHIFT 13
89#define MEM_CDR_THR_MODE BIT(12)
90#define MEM_CDR_THR_MODE_SHIFT 12
91#define MEM_CDR_2NDO_SDM_MODE BIT(11)
92#define MEM_CDR_2NDO_SDM_MODE_SHIFT 11
93
94#define PIPE3_PHY_RX_EQUALIZER 0x00000038
95#define MEM_EQLEV_MASK GENMASK(31, 16)
96#define MEM_EQLEV_SHIFT 16
97#define MEM_EQFTC_MASK GENMASK(15, 11)
98#define MEM_EQFTC_SHIFT 11
99#define MEM_EQCTL_MASK GENMASK(10, 7)
100#define MEM_EQCTL_SHIFT 7
101#define MEM_OVRD_EQLEV BIT(2)
102#define MEM_OVRD_EQLEV_SHIFT 2
103#define MEM_OVRD_EQFTC BIT(1)
104#define MEM_OVRD_EQFTC_SHIFT 1
105
106#define SATA_PHY_RX_IO_AND_A2D_OVERRIDES 0x44
107#define MEM_CDR_LOS_SOURCE_MASK GENMASK(10, 9)
108#define MEM_CDR_LOS_SOURCE_SHIFT 9
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200109
110#define PLL_IDLE_TIME 100 /* in milliseconds */
111#define PLL_LOCK_TIME 100 /* in milliseconds */
112
Roger Quadros53df65a2019-11-06 16:21:16 +0200113enum pipe3_mode { PIPE3_MODE_PCIE = 1,
114 PIPE3_MODE_SATA,
115 PIPE3_MODE_USBSS };
116
Roger Quadros277d5d12019-11-06 16:21:17 +0200117struct pipe3_settings {
118 u8 ana_interface;
119 u8 ana_losd;
120 u8 dig_fastlock;
121 u8 dig_lbw;
122 u8 dig_stepcnt;
123 u8 dig_stl;
124 u8 dig_thr;
125 u8 dig_thr_mode;
126 u8 dig_2ndo_sdm_mode;
127 u8 dig_hs_rate;
128 u8 dig_ovrd_hs_rate;
129 u8 dll_trim_sel;
130 u8 dll_phint_rate;
131 u8 eq_lev;
132 u8 eq_ftc;
133 u8 eq_ctl;
134 u8 eq_ovrd_lev;
135 u8 eq_ovrd_ftc;
136};
137
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200138struct omap_pipe3 {
139 void __iomem *pll_ctrl_base;
Roger Quadros277d5d12019-11-06 16:21:17 +0200140 void __iomem *phy_rx;
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200141 void __iomem *power_reg;
142 void __iomem *pll_reset_reg;
143 struct pipe3_dpll_map *dpll_map;
Roger Quadros53df65a2019-11-06 16:21:16 +0200144 enum pipe3_mode mode;
Roger Quadros277d5d12019-11-06 16:21:17 +0200145 struct pipe3_settings settings;
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200146};
147
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200148struct pipe3_dpll_params {
149 u16 m;
150 u8 n;
151 u8 freq:3;
152 u8 sd;
153 u32 mf;
154};
155
156struct pipe3_dpll_map {
157 unsigned long rate;
158 struct pipe3_dpll_params params;
159};
160
Roger Quadros53df65a2019-11-06 16:21:16 +0200161struct pipe3_data {
162 enum pipe3_mode mode;
163 struct pipe3_dpll_map *dpll_map;
Roger Quadros277d5d12019-11-06 16:21:17 +0200164 struct pipe3_settings settings;
Roger Quadros53df65a2019-11-06 16:21:16 +0200165};
166
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200167static inline u32 omap_pipe3_readl(void __iomem *addr, unsigned offset)
168{
169 return readl(addr + offset);
170}
171
172static inline void omap_pipe3_writel(void __iomem *addr, unsigned offset,
173 u32 data)
174{
175 writel(data, addr + offset);
176}
177
178static struct pipe3_dpll_params *omap_pipe3_get_dpll_params(struct omap_pipe3
179 *pipe3)
180{
181 u32 rate;
182 struct pipe3_dpll_map *dpll_map = pipe3->dpll_map;
183
184 rate = get_sys_clk_freq();
185
186 for (; dpll_map->rate; dpll_map++) {
187 if (rate == dpll_map->rate)
188 return &dpll_map->params;
189 }
190
191 printf("%s: No DPLL configuration for %u Hz SYS CLK\n",
192 __func__, rate);
193 return NULL;
194}
195
196static int omap_pipe3_wait_lock(struct omap_pipe3 *pipe3)
197{
198 u32 val;
199 int timeout = PLL_LOCK_TIME;
200
201 do {
202 mdelay(1);
203 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_STATUS);
204 if (val & PLL_LOCK)
205 break;
206 } while (--timeout);
207
208 if (!(val & PLL_LOCK)) {
209 printf("%s: DPLL failed to lock\n", __func__);
210 return -EBUSY;
211 }
212
213 return 0;
214}
215
216static int omap_pipe3_dpll_program(struct omap_pipe3 *pipe3)
217{
218 u32 val;
219 struct pipe3_dpll_params *dpll_params;
220
221 dpll_params = omap_pipe3_get_dpll_params(pipe3);
222 if (!dpll_params) {
223 printf("%s: Invalid DPLL parameters\n", __func__);
224 return -EINVAL;
225 }
226
227 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION1);
228 val &= ~PLL_REGN_MASK;
229 val |= dpll_params->n << PLL_REGN_SHIFT;
230 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION1, val);
231
232 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION2);
Vignesh R0752d702018-11-29 10:57:38 +0100233 val &= ~(PLL_SELFREQDCO_MASK | PLL_IDLE);
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200234 val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT;
235 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION2, val);
236
237 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION1);
238 val &= ~PLL_REGM_MASK;
239 val |= dpll_params->m << PLL_REGM_SHIFT;
240 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION1, val);
241
242 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION4);
243 val &= ~PLL_REGM_F_MASK;
244 val |= dpll_params->mf << PLL_REGM_F_SHIFT;
245 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION4, val);
246
247 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION3);
248 val &= ~PLL_SD_MASK;
249 val |= dpll_params->sd << PLL_SD_SHIFT;
250 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION3, val);
251
252 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_GO, SET_PLL_GO);
253
254 return omap_pipe3_wait_lock(pipe3);
255}
256
257static void omap_control_pipe3_power(struct omap_pipe3 *pipe3, int on)
258{
259 u32 val, rate;
260
261 val = readl(pipe3->power_reg);
262
263 rate = get_sys_clk_freq();
264 rate = rate/1000000;
265
266 if (on) {
267 val &= ~(OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK |
268 OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_MASK);
269 val |= OMAP_CTRL_PIPE3_PHY_TX_RX_POWERON <<
270 OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
271 val |= rate <<
272 OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT;
273 } else {
274 val &= ~OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_MASK;
275 val |= OMAP_CTRL_PIPE3_PHY_TX_RX_POWEROFF <<
276 OMAP_CTRL_PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT;
277 }
278
279 writel(val, pipe3->power_reg);
280}
281
Roger Quadros277d5d12019-11-06 16:21:17 +0200282static void ti_pipe3_calibrate(struct omap_pipe3 *phy)
283{
284 u32 val;
285 struct pipe3_settings *s = &phy->settings;
286
287 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_ANA_PROGRAMMABILITY);
288 val &= ~(INTERFACE_MASK | LOSD_MASK | MEM_PLLDIV);
289 val = (s->ana_interface << INTERFACE_SHIFT | s->ana_losd << LOSD_SHIFT);
290 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_ANA_PROGRAMMABILITY, val);
291
292 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_DIGITAL_MODES);
293 val &= ~(MEM_HS_RATE_MASK | MEM_OVRD_HS_RATE | MEM_CDR_FASTLOCK |
294 MEM_CDR_LBW_MASK | MEM_CDR_STEPCNT_MASK | MEM_CDR_STL_MASK |
295 MEM_CDR_THR_MASK | MEM_CDR_THR_MODE | MEM_CDR_2NDO_SDM_MODE);
296 val |= s->dig_hs_rate << MEM_HS_RATE_SHIFT |
297 s->dig_ovrd_hs_rate << MEM_OVRD_HS_RATE_SHIFT |
298 s->dig_fastlock << MEM_CDR_FASTLOCK_SHIFT |
299 s->dig_lbw << MEM_CDR_LBW_SHIFT |
300 s->dig_stepcnt << MEM_CDR_STEPCNT_SHIFT |
301 s->dig_stl << MEM_CDR_STL_SHIFT |
302 s->dig_thr << MEM_CDR_THR_SHIFT |
303 s->dig_thr_mode << MEM_CDR_THR_MODE_SHIFT |
304 s->dig_2ndo_sdm_mode << MEM_CDR_2NDO_SDM_MODE_SHIFT;
305 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_DIGITAL_MODES, val);
306
307 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_TRIM);
308 val &= ~MEM_DLL_TRIM_SEL_MASK;
309 val |= s->dll_trim_sel << MEM_DLL_TRIM_SHIFT;
310 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_TRIM, val);
311
312 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_DLL);
313 val &= ~MEM_DLL_PHINT_RATE_MASK;
314 val |= s->dll_phint_rate << MEM_DLL_PHINT_RATE_SHIFT;
315 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_DLL, val);
316
317 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_EQUALIZER);
318 val &= ~(MEM_EQLEV_MASK | MEM_EQFTC_MASK | MEM_EQCTL_MASK |
319 MEM_OVRD_EQLEV | MEM_OVRD_EQFTC);
320 val |= s->eq_lev << MEM_EQLEV_SHIFT |
321 s->eq_ftc << MEM_EQFTC_SHIFT |
322 s->eq_ctl << MEM_EQCTL_SHIFT |
323 s->eq_ovrd_lev << MEM_OVRD_EQLEV_SHIFT |
324 s->eq_ovrd_ftc << MEM_OVRD_EQFTC_SHIFT;
325 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_EQUALIZER, val);
326
327 if (phy->mode == PIPE3_MODE_SATA) {
328 val = omap_pipe3_readl(phy->phy_rx,
329 SATA_PHY_RX_IO_AND_A2D_OVERRIDES);
330 val &= ~MEM_CDR_LOS_SOURCE_MASK;
331 omap_pipe3_writel(phy->phy_rx, SATA_PHY_RX_IO_AND_A2D_OVERRIDES,
332 val);
333 }
334}
335
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200336static int pipe3_init(struct phy *phy)
337{
338 int ret;
339 u32 val;
340 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
341
342 /* Program the DPLL only if not locked */
343 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_STATUS);
344 if (!(val & PLL_LOCK)) {
345 ret = omap_pipe3_dpll_program(pipe3);
346 if (ret)
347 return ret;
Roger Quadros277d5d12019-11-06 16:21:17 +0200348
349 ti_pipe3_calibrate(pipe3);
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200350 } else {
351 /* else just bring it out of IDLE mode */
352 val = omap_pipe3_readl(pipe3->pll_ctrl_base,
353 PLL_CONFIGURATION2);
354 if (val & PLL_IDLE) {
355 val &= ~PLL_IDLE;
356 omap_pipe3_writel(pipe3->pll_ctrl_base,
357 PLL_CONFIGURATION2, val);
358 ret = omap_pipe3_wait_lock(pipe3);
359 if (ret)
360 return ret;
361 }
362 }
363 return 0;
364}
365
366static int pipe3_power_on(struct phy *phy)
367{
368 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
369
370 /* Power up the PHY */
371 omap_control_pipe3_power(pipe3, 1);
372
373 return 0;
374}
375
376static int pipe3_power_off(struct phy *phy)
377{
378 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
379
380 /* Power down the PHY */
381 omap_control_pipe3_power(pipe3, 0);
382
383 return 0;
384}
385
386static int pipe3_exit(struct phy *phy)
387{
388 u32 val;
389 int timeout = PLL_IDLE_TIME;
390 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
391
392 pipe3_power_off(phy);
393
394 /* Put DPLL in IDLE mode */
395 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION2);
396 val |= PLL_IDLE;
397 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION2, val);
398
399 /* wait for LDO and Oscillator to power down */
400 do {
401 mdelay(1);
402 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_STATUS);
403 if ((val & PLL_TICOPWDN) && (val & PLL_LDOPWDN))
404 break;
405 } while (--timeout);
406
407 if (!(val & PLL_TICOPWDN) || !(val & PLL_LDOPWDN)) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900408 pr_err("%s: Failed to power down DPLL: PLL_STATUS 0x%x\n",
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200409 __func__, val);
410 return -EBUSY;
411 }
412
Vignesh R0752d702018-11-29 10:57:38 +0100413 if (pipe3->pll_reset_reg) {
414 val = readl(pipe3->pll_reset_reg);
415 writel(val | SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg);
416 mdelay(1);
417 writel(val & ~SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg);
418 }
419
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200420 return 0;
421}
422
423static void *get_reg(struct udevice *dev, const char *name)
424{
425 struct udevice *syscon;
426 struct regmap *regmap;
427 const fdt32_t *cell;
428 int len, err;
429 void *base;
430
431 err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
432 name, &syscon);
433 if (err) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900434 pr_err("unable to find syscon device for %s (%d)\n",
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200435 name, err);
436 return NULL;
437 }
438
439 regmap = syscon_get_regmap(syscon);
440 if (IS_ERR(regmap)) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900441 pr_err("unable to find regmap for %s (%ld)\n",
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200442 name, PTR_ERR(regmap));
443 return NULL;
444 }
445
Simon Glassda409cc2017-05-17 17:18:09 -0600446 cell = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), name,
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200447 &len);
448 if (len < 2*sizeof(fdt32_t)) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900449 pr_err("offset not available for %s\n", name);
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200450 return NULL;
451 }
452
453 base = regmap_get_range(regmap, 0);
454 if (!base)
455 return NULL;
456
457 return fdtdec_get_number(cell + 1, 1) + base;
458}
459
460static int pipe3_phy_probe(struct udevice *dev)
461{
462 fdt_addr_t addr;
463 fdt_size_t sz;
464 struct omap_pipe3 *pipe3 = dev_get_priv(dev);
Roger Quadros53df65a2019-11-06 16:21:16 +0200465 struct pipe3_data *data;
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200466
Roger Quadros277d5d12019-11-06 16:21:17 +0200467 /* PHY_RX */
468 addr = devfdt_get_addr_size_index(dev, 0, &sz);
469 if (addr == FDT_ADDR_T_NONE) {
470 pr_err("missing phy_rx address\n");
471 return -EINVAL;
472 }
473
474 pipe3->phy_rx = map_physmem(addr, sz, MAP_NOCACHE);
475 if (!pipe3->phy_rx) {
476 pr_err("unable to remap phy_rx\n");
477 return -EINVAL;
478 }
479
480 /* PLLCTRL */
Simon Glassa821c4a2017-05-17 17:18:05 -0600481 addr = devfdt_get_addr_size_index(dev, 2, &sz);
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200482 if (addr == FDT_ADDR_T_NONE) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900483 pr_err("missing pll ctrl address\n");
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200484 return -EINVAL;
485 }
486
487 pipe3->pll_ctrl_base = map_physmem(addr, sz, MAP_NOCACHE);
488 if (!pipe3->pll_ctrl_base) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900489 pr_err("unable to remap pll ctrl\n");
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200490 return -EINVAL;
491 }
492
493 pipe3->power_reg = get_reg(dev, "syscon-phy-power");
494 if (!pipe3->power_reg)
495 return -EINVAL;
496
Roger Quadros53df65a2019-11-06 16:21:16 +0200497 data = (struct pipe3_data *)dev_get_driver_data(dev);
498 pipe3->mode = data->mode;
499 pipe3->dpll_map = data->dpll_map;
Roger Quadros277d5d12019-11-06 16:21:17 +0200500 pipe3->settings = data->settings;
Roger Quadros53df65a2019-11-06 16:21:16 +0200501
502 if (pipe3->mode == PIPE3_MODE_SATA) {
Vignesh R0752d702018-11-29 10:57:38 +0100503 pipe3->pll_reset_reg = get_reg(dev, "syscon-pllreset");
504 if (!pipe3->pll_reset_reg)
505 return -EINVAL;
506 }
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200507
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200508 return 0;
509}
510
511static struct pipe3_dpll_map dpll_map_sata[] = {
Roger Quadrosb055e672019-11-06 16:21:15 +0200512 {12000000, {625, 4, 4, 6, 0} }, /* 12 MHz */
513 {16800000, {625, 6, 4, 7, 0} }, /* 16.8 MHz */
514 {19200000, {625, 7, 4, 6, 0} }, /* 19.2 MHz */
515 {20000000, {750, 9, 4, 6, 0} }, /* 20 MHz */
516 {26000000, {750, 12, 4, 6, 0} }, /* 26 MHz */
517 {38400000, {625, 15, 4, 6, 0} }, /* 38.4 MHz */
518 { }, /* Terminator */
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200519};
520
Vignesh R0752d702018-11-29 10:57:38 +0100521static struct pipe3_dpll_map dpll_map_usb[] = {
522 {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */
523 {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */
524 {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */
525 {20000000, {1000, 7, 4, 10, 0} }, /* 20 MHz */
526 {26000000, {1250, 12, 4, 20, 0} }, /* 26 MHz */
527 {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */
528 { }, /* Terminator */
529};
530
Roger Quadros53df65a2019-11-06 16:21:16 +0200531static struct pipe3_data data_usb = {
532 .mode = PIPE3_MODE_USBSS,
533 .dpll_map = dpll_map_usb,
Roger Quadros277d5d12019-11-06 16:21:17 +0200534 .settings = {
535 /* DRA75x TRM Table 26-17. Preferred USB3_PHY_RX SCP Register Settings */
536 .ana_interface = INTERFACE_MODE_USBSS,
537 .ana_losd = 0xa,
538 .dig_fastlock = 1,
539 .dig_lbw = 3,
540 .dig_stepcnt = 0,
541 .dig_stl = 0x3,
542 .dig_thr = 1,
543 .dig_thr_mode = 1,
544 .dig_2ndo_sdm_mode = 0,
545 .dig_hs_rate = 0,
546 .dig_ovrd_hs_rate = 1,
547 .dll_trim_sel = 0x2,
548 .dll_phint_rate = 0x3,
549 .eq_lev = 0,
550 .eq_ftc = 0,
551 .eq_ctl = 0x9,
552 .eq_ovrd_lev = 0,
553 .eq_ovrd_ftc = 0,
554 },
Roger Quadros53df65a2019-11-06 16:21:16 +0200555};
556
557static struct pipe3_data data_sata = {
558 .mode = PIPE3_MODE_SATA,
559 .dpll_map = dpll_map_sata,
Roger Quadros277d5d12019-11-06 16:21:17 +0200560 .settings = {
561 /* DRA75x TRM Table 26-9. Preferred SATA_PHY_RX SCP Register Settings */
562 .ana_interface = INTERFACE_MODE_SATA_3P0,
563 .ana_losd = 0x5,
564 .dig_fastlock = 1,
565 .dig_lbw = 3,
566 .dig_stepcnt = 0,
567 .dig_stl = 0x3,
568 .dig_thr = 1,
569 .dig_thr_mode = 1,
570 .dig_2ndo_sdm_mode = 0,
571 .dig_hs_rate = 0, /* Not in TRM preferred settings */
572 .dig_ovrd_hs_rate = 0, /* Not in TRM preferred settings */
573 .dll_trim_sel = 0x1,
574 .dll_phint_rate = 0x2, /* for 1.5 GHz DPLL clock */
575 .eq_lev = 0,
576 .eq_ftc = 0x1f,
577 .eq_ctl = 0,
578 .eq_ovrd_lev = 1,
579 .eq_ovrd_ftc = 1,
580 },
Roger Quadros53df65a2019-11-06 16:21:16 +0200581};
582
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200583static const struct udevice_id pipe3_phy_ids[] = {
Roger Quadros53df65a2019-11-06 16:21:16 +0200584 { .compatible = "ti,phy-pipe3-sata", .data = (ulong)&data_sata },
585 { .compatible = "ti,omap-usb3", .data = (ulong)&data_usb},
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200586 { }
587};
588
589static struct phy_ops pipe3_phy_ops = {
590 .init = pipe3_init,
591 .power_on = pipe3_power_on,
592 .power_off = pipe3_power_off,
593 .exit = pipe3_exit,
594};
595
596U_BOOT_DRIVER(pipe3_phy) = {
597 .name = "pipe3_phy",
598 .id = UCLASS_PHY,
599 .of_match = pipe3_phy_ids,
600 .ops = &pipe3_phy_ops,
601 .probe = pipe3_phy_probe,
602 .priv_auto_alloc_size = sizeof(struct omap_pipe3),
603};