blob: 7fc36319cbad0650daee62b91812af9dcef8e742 [file] [log] [blame]
Tom Rini10e47792018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Jean-Jacques Hiblot73e95eb2017-04-24 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 Hiblot73e95eb2017-04-24 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>
Simon Glassd66c5f72020-02-03 07:36:15 -070015#include <linux/err.h>
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +020016
17/* PLLCTRL Registers */
18#define PLL_STATUS 0x00000004
19#define PLL_GO 0x00000008
20#define PLL_CONFIGURATION1 0x0000000C
21#define PLL_CONFIGURATION2 0x00000010
22#define PLL_CONFIGURATION3 0x00000014
23#define PLL_CONFIGURATION4 0x00000020
24
25#define PLL_REGM_MASK 0x001FFE00
26#define PLL_REGM_SHIFT 9
27#define PLL_REGM_F_MASK 0x0003FFFF
28#define PLL_REGM_F_SHIFT 0
29#define PLL_REGN_MASK 0x000001FE
30#define PLL_REGN_SHIFT 1
31#define PLL_SELFREQDCO_MASK 0x0000000E
32#define PLL_SELFREQDCO_SHIFT 1
33#define PLL_SD_MASK 0x0003FC00
34#define PLL_SD_SHIFT 10
35#define SET_PLL_GO 0x1
36#define PLL_TICOPWDN BIT(16)
37#define PLL_LDOPWDN BIT(15)
38#define PLL_LOCK 0x2
39#define PLL_IDLE 0x1
40
41/* Software rest for the SATA PLL (in CTRL_CORE_SMA_SW_0 register)*/
42#define SATA_PLL_SOFT_RESET (1<<18)
43
44/* PHY POWER CONTROL Register */
Roger Quadrosed555622019-11-06 16:21:18 +020045#define PIPE3_PHY_PWRCTL_CLK_CMD_MASK GENMASK(21, 14)
46#define PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT 14
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +020047
Roger Quadrosed555622019-11-06 16:21:18 +020048#define PIPE3_PHY_PWRCTL_CLK_FREQ_MASK GENMASK(31, 22)
49#define PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT 22
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +020050
Roger Quadrosed555622019-11-06 16:21:18 +020051#define PIPE3_PHY_RX_POWERON (0x1 << PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT)
52#define PIPE3_PHY_TX_POWERON (0x2 << PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT)
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +020053
Roger Quadros80c69c62019-11-06 16:21:17 +020054/* PHY RX Registers */
55#define PIPE3_PHY_RX_ANA_PROGRAMMABILITY 0x0000000C
56#define INTERFACE_MASK GENMASK(31, 27)
57#define INTERFACE_SHIFT 27
58#define INTERFACE_MODE_USBSS BIT(4)
59#define INTERFACE_MODE_SATA_1P5 BIT(3)
60#define INTERFACE_MODE_SATA_3P0 BIT(2)
61#define INTERFACE_MODE_PCIE BIT(0)
62
63#define LOSD_MASK GENMASK(17, 14)
64#define LOSD_SHIFT 14
65#define MEM_PLLDIV GENMASK(6, 5)
66
67#define PIPE3_PHY_RX_TRIM 0x0000001C
68#define MEM_DLL_TRIM_SEL_MASK GENMASK(31, 30)
69#define MEM_DLL_TRIM_SHIFT 30
70
71#define PIPE3_PHY_RX_DLL 0x00000024
72#define MEM_DLL_PHINT_RATE_MASK GENMASK(31, 30)
73#define MEM_DLL_PHINT_RATE_SHIFT 30
74
75#define PIPE3_PHY_RX_DIGITAL_MODES 0x00000028
76#define MEM_HS_RATE_MASK GENMASK(28, 27)
77#define MEM_HS_RATE_SHIFT 27
78#define MEM_OVRD_HS_RATE BIT(26)
79#define MEM_OVRD_HS_RATE_SHIFT 26
80#define MEM_CDR_FASTLOCK BIT(23)
81#define MEM_CDR_FASTLOCK_SHIFT 23
82#define MEM_CDR_LBW_MASK GENMASK(22, 21)
83#define MEM_CDR_LBW_SHIFT 21
84#define MEM_CDR_STEPCNT_MASK GENMASK(20, 19)
85#define MEM_CDR_STEPCNT_SHIFT 19
86#define MEM_CDR_STL_MASK GENMASK(18, 16)
87#define MEM_CDR_STL_SHIFT 16
88#define MEM_CDR_THR_MASK GENMASK(15, 13)
89#define MEM_CDR_THR_SHIFT 13
90#define MEM_CDR_THR_MODE BIT(12)
91#define MEM_CDR_THR_MODE_SHIFT 12
92#define MEM_CDR_2NDO_SDM_MODE BIT(11)
93#define MEM_CDR_2NDO_SDM_MODE_SHIFT 11
94
95#define PIPE3_PHY_RX_EQUALIZER 0x00000038
96#define MEM_EQLEV_MASK GENMASK(31, 16)
97#define MEM_EQLEV_SHIFT 16
98#define MEM_EQFTC_MASK GENMASK(15, 11)
99#define MEM_EQFTC_SHIFT 11
100#define MEM_EQCTL_MASK GENMASK(10, 7)
101#define MEM_EQCTL_SHIFT 7
102#define MEM_OVRD_EQLEV BIT(2)
103#define MEM_OVRD_EQLEV_SHIFT 2
104#define MEM_OVRD_EQFTC BIT(1)
105#define MEM_OVRD_EQFTC_SHIFT 1
106
107#define SATA_PHY_RX_IO_AND_A2D_OVERRIDES 0x44
108#define MEM_CDR_LOS_SOURCE_MASK GENMASK(10, 9)
109#define MEM_CDR_LOS_SOURCE_SHIFT 9
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200110
111#define PLL_IDLE_TIME 100 /* in milliseconds */
112#define PLL_LOCK_TIME 100 /* in milliseconds */
113
Roger Quadroscf608642019-11-06 16:21:16 +0200114enum pipe3_mode { PIPE3_MODE_PCIE = 1,
115 PIPE3_MODE_SATA,
116 PIPE3_MODE_USBSS };
117
Roger Quadros80c69c62019-11-06 16:21:17 +0200118struct pipe3_settings {
119 u8 ana_interface;
120 u8 ana_losd;
121 u8 dig_fastlock;
122 u8 dig_lbw;
123 u8 dig_stepcnt;
124 u8 dig_stl;
125 u8 dig_thr;
126 u8 dig_thr_mode;
127 u8 dig_2ndo_sdm_mode;
128 u8 dig_hs_rate;
129 u8 dig_ovrd_hs_rate;
130 u8 dll_trim_sel;
131 u8 dll_phint_rate;
132 u8 eq_lev;
133 u8 eq_ftc;
134 u8 eq_ctl;
135 u8 eq_ovrd_lev;
136 u8 eq_ovrd_ftc;
137};
138
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200139struct omap_pipe3 {
140 void __iomem *pll_ctrl_base;
Roger Quadros80c69c62019-11-06 16:21:17 +0200141 void __iomem *phy_rx;
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200142 void __iomem *power_reg;
143 void __iomem *pll_reset_reg;
144 struct pipe3_dpll_map *dpll_map;
Roger Quadroscf608642019-11-06 16:21:16 +0200145 enum pipe3_mode mode;
Roger Quadros80c69c62019-11-06 16:21:17 +0200146 struct pipe3_settings settings;
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200147};
148
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200149struct pipe3_dpll_params {
150 u16 m;
151 u8 n;
152 u8 freq:3;
153 u8 sd;
154 u32 mf;
155};
156
157struct pipe3_dpll_map {
158 unsigned long rate;
159 struct pipe3_dpll_params params;
160};
161
Roger Quadroscf608642019-11-06 16:21:16 +0200162struct pipe3_data {
163 enum pipe3_mode mode;
164 struct pipe3_dpll_map *dpll_map;
Roger Quadros80c69c62019-11-06 16:21:17 +0200165 struct pipe3_settings settings;
Roger Quadroscf608642019-11-06 16:21:16 +0200166};
167
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200168static inline u32 omap_pipe3_readl(void __iomem *addr, unsigned offset)
169{
170 return readl(addr + offset);
171}
172
173static inline void omap_pipe3_writel(void __iomem *addr, unsigned offset,
174 u32 data)
175{
176 writel(data, addr + offset);
177}
178
179static struct pipe3_dpll_params *omap_pipe3_get_dpll_params(struct omap_pipe3
180 *pipe3)
181{
182 u32 rate;
183 struct pipe3_dpll_map *dpll_map = pipe3->dpll_map;
184
185 rate = get_sys_clk_freq();
186
187 for (; dpll_map->rate; dpll_map++) {
188 if (rate == dpll_map->rate)
189 return &dpll_map->params;
190 }
191
192 printf("%s: No DPLL configuration for %u Hz SYS CLK\n",
193 __func__, rate);
194 return NULL;
195}
196
197static int omap_pipe3_wait_lock(struct omap_pipe3 *pipe3)
198{
199 u32 val;
200 int timeout = PLL_LOCK_TIME;
201
202 do {
203 mdelay(1);
204 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_STATUS);
205 if (val & PLL_LOCK)
206 break;
207 } while (--timeout);
208
209 if (!(val & PLL_LOCK)) {
210 printf("%s: DPLL failed to lock\n", __func__);
211 return -EBUSY;
212 }
213
214 return 0;
215}
216
217static int omap_pipe3_dpll_program(struct omap_pipe3 *pipe3)
218{
219 u32 val;
220 struct pipe3_dpll_params *dpll_params;
221
222 dpll_params = omap_pipe3_get_dpll_params(pipe3);
223 if (!dpll_params) {
224 printf("%s: Invalid DPLL parameters\n", __func__);
225 return -EINVAL;
226 }
227
228 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION1);
229 val &= ~PLL_REGN_MASK;
230 val |= dpll_params->n << PLL_REGN_SHIFT;
231 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION1, val);
232
233 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION2);
Vignesh R5b22df52018-11-29 10:57:38 +0100234 val &= ~(PLL_SELFREQDCO_MASK | PLL_IDLE);
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200235 val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT;
236 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION2, val);
237
238 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION1);
239 val &= ~PLL_REGM_MASK;
240 val |= dpll_params->m << PLL_REGM_SHIFT;
241 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION1, val);
242
243 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION4);
244 val &= ~PLL_REGM_F_MASK;
245 val |= dpll_params->mf << PLL_REGM_F_SHIFT;
246 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION4, val);
247
248 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION3);
249 val &= ~PLL_SD_MASK;
250 val |= dpll_params->sd << PLL_SD_SHIFT;
251 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION3, val);
252
253 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_GO, SET_PLL_GO);
254
255 return omap_pipe3_wait_lock(pipe3);
256}
257
258static void omap_control_pipe3_power(struct omap_pipe3 *pipe3, int on)
259{
260 u32 val, rate;
261
262 val = readl(pipe3->power_reg);
263
264 rate = get_sys_clk_freq();
265 rate = rate/1000000;
266
267 if (on) {
Roger Quadrosed555622019-11-06 16:21:18 +0200268 val &= ~(PIPE3_PHY_PWRCTL_CLK_CMD_MASK |
269 PIPE3_PHY_PWRCTL_CLK_FREQ_MASK);
270 val |= rate << PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT;
271 writel(val, pipe3->power_reg);
272
273 /* Power up TX before RX for SATA & USB */
274 val |= PIPE3_PHY_TX_POWERON;
275 writel(val, pipe3->power_reg);
276
277 val |= PIPE3_PHY_RX_POWERON;
278 writel(val, pipe3->power_reg);
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200279 } else {
Roger Quadrosed555622019-11-06 16:21:18 +0200280 val &= ~PIPE3_PHY_PWRCTL_CLK_CMD_MASK;
281 writel(val, pipe3->power_reg);
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200282 }
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200283}
284
Roger Quadros80c69c62019-11-06 16:21:17 +0200285static void ti_pipe3_calibrate(struct omap_pipe3 *phy)
286{
287 u32 val;
288 struct pipe3_settings *s = &phy->settings;
289
290 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_ANA_PROGRAMMABILITY);
291 val &= ~(INTERFACE_MASK | LOSD_MASK | MEM_PLLDIV);
292 val = (s->ana_interface << INTERFACE_SHIFT | s->ana_losd << LOSD_SHIFT);
293 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_ANA_PROGRAMMABILITY, val);
294
295 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_DIGITAL_MODES);
296 val &= ~(MEM_HS_RATE_MASK | MEM_OVRD_HS_RATE | MEM_CDR_FASTLOCK |
297 MEM_CDR_LBW_MASK | MEM_CDR_STEPCNT_MASK | MEM_CDR_STL_MASK |
298 MEM_CDR_THR_MASK | MEM_CDR_THR_MODE | MEM_CDR_2NDO_SDM_MODE);
299 val |= s->dig_hs_rate << MEM_HS_RATE_SHIFT |
300 s->dig_ovrd_hs_rate << MEM_OVRD_HS_RATE_SHIFT |
301 s->dig_fastlock << MEM_CDR_FASTLOCK_SHIFT |
302 s->dig_lbw << MEM_CDR_LBW_SHIFT |
303 s->dig_stepcnt << MEM_CDR_STEPCNT_SHIFT |
304 s->dig_stl << MEM_CDR_STL_SHIFT |
305 s->dig_thr << MEM_CDR_THR_SHIFT |
306 s->dig_thr_mode << MEM_CDR_THR_MODE_SHIFT |
307 s->dig_2ndo_sdm_mode << MEM_CDR_2NDO_SDM_MODE_SHIFT;
308 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_DIGITAL_MODES, val);
309
310 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_TRIM);
311 val &= ~MEM_DLL_TRIM_SEL_MASK;
312 val |= s->dll_trim_sel << MEM_DLL_TRIM_SHIFT;
313 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_TRIM, val);
314
315 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_DLL);
316 val &= ~MEM_DLL_PHINT_RATE_MASK;
317 val |= s->dll_phint_rate << MEM_DLL_PHINT_RATE_SHIFT;
318 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_DLL, val);
319
320 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_EQUALIZER);
321 val &= ~(MEM_EQLEV_MASK | MEM_EQFTC_MASK | MEM_EQCTL_MASK |
322 MEM_OVRD_EQLEV | MEM_OVRD_EQFTC);
323 val |= s->eq_lev << MEM_EQLEV_SHIFT |
324 s->eq_ftc << MEM_EQFTC_SHIFT |
325 s->eq_ctl << MEM_EQCTL_SHIFT |
326 s->eq_ovrd_lev << MEM_OVRD_EQLEV_SHIFT |
327 s->eq_ovrd_ftc << MEM_OVRD_EQFTC_SHIFT;
328 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_EQUALIZER, val);
329
330 if (phy->mode == PIPE3_MODE_SATA) {
331 val = omap_pipe3_readl(phy->phy_rx,
332 SATA_PHY_RX_IO_AND_A2D_OVERRIDES);
333 val &= ~MEM_CDR_LOS_SOURCE_MASK;
334 omap_pipe3_writel(phy->phy_rx, SATA_PHY_RX_IO_AND_A2D_OVERRIDES,
335 val);
336 }
337}
338
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200339static int pipe3_init(struct phy *phy)
340{
341 int ret;
342 u32 val;
343 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
344
345 /* Program the DPLL only if not locked */
346 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_STATUS);
347 if (!(val & PLL_LOCK)) {
348 ret = omap_pipe3_dpll_program(pipe3);
349 if (ret)
350 return ret;
Roger Quadros80c69c62019-11-06 16:21:17 +0200351
352 ti_pipe3_calibrate(pipe3);
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200353 } else {
354 /* else just bring it out of IDLE mode */
355 val = omap_pipe3_readl(pipe3->pll_ctrl_base,
356 PLL_CONFIGURATION2);
357 if (val & PLL_IDLE) {
358 val &= ~PLL_IDLE;
359 omap_pipe3_writel(pipe3->pll_ctrl_base,
360 PLL_CONFIGURATION2, val);
361 ret = omap_pipe3_wait_lock(pipe3);
362 if (ret)
363 return ret;
364 }
365 }
366 return 0;
367}
368
369static int pipe3_power_on(struct phy *phy)
370{
371 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
372
373 /* Power up the PHY */
374 omap_control_pipe3_power(pipe3, 1);
375
376 return 0;
377}
378
379static int pipe3_power_off(struct phy *phy)
380{
381 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
382
383 /* Power down the PHY */
384 omap_control_pipe3_power(pipe3, 0);
385
386 return 0;
387}
388
389static int pipe3_exit(struct phy *phy)
390{
391 u32 val;
392 int timeout = PLL_IDLE_TIME;
393 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
394
395 pipe3_power_off(phy);
396
397 /* Put DPLL in IDLE mode */
398 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION2);
399 val |= PLL_IDLE;
400 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION2, val);
401
402 /* wait for LDO and Oscillator to power down */
403 do {
404 mdelay(1);
405 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_STATUS);
406 if ((val & PLL_TICOPWDN) && (val & PLL_LDOPWDN))
407 break;
408 } while (--timeout);
409
410 if (!(val & PLL_TICOPWDN) || !(val & PLL_LDOPWDN)) {
Masahiro Yamada81e10422017-09-16 14:10:41 +0900411 pr_err("%s: Failed to power down DPLL: PLL_STATUS 0x%x\n",
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200412 __func__, val);
413 return -EBUSY;
414 }
415
Vignesh R5b22df52018-11-29 10:57:38 +0100416 if (pipe3->pll_reset_reg) {
417 val = readl(pipe3->pll_reset_reg);
418 writel(val | SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg);
419 mdelay(1);
420 writel(val & ~SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg);
421 }
422
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200423 return 0;
424}
425
426static void *get_reg(struct udevice *dev, const char *name)
427{
428 struct udevice *syscon;
429 struct regmap *regmap;
430 const fdt32_t *cell;
431 int len, err;
432 void *base;
433
434 err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
435 name, &syscon);
436 if (err) {
Masahiro Yamada81e10422017-09-16 14:10:41 +0900437 pr_err("unable to find syscon device for %s (%d)\n",
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200438 name, err);
439 return NULL;
440 }
441
442 regmap = syscon_get_regmap(syscon);
443 if (IS_ERR(regmap)) {
Masahiro Yamada81e10422017-09-16 14:10:41 +0900444 pr_err("unable to find regmap for %s (%ld)\n",
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200445 name, PTR_ERR(regmap));
446 return NULL;
447 }
448
Simon Glass7a494432017-05-17 17:18:09 -0600449 cell = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), name,
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200450 &len);
451 if (len < 2*sizeof(fdt32_t)) {
Masahiro Yamada81e10422017-09-16 14:10:41 +0900452 pr_err("offset not available for %s\n", name);
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200453 return NULL;
454 }
455
456 base = regmap_get_range(regmap, 0);
457 if (!base)
458 return NULL;
459
460 return fdtdec_get_number(cell + 1, 1) + base;
461}
462
463static int pipe3_phy_probe(struct udevice *dev)
464{
465 fdt_addr_t addr;
466 fdt_size_t sz;
467 struct omap_pipe3 *pipe3 = dev_get_priv(dev);
Roger Quadroscf608642019-11-06 16:21:16 +0200468 struct pipe3_data *data;
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200469
Roger Quadros80c69c62019-11-06 16:21:17 +0200470 /* PHY_RX */
471 addr = devfdt_get_addr_size_index(dev, 0, &sz);
472 if (addr == FDT_ADDR_T_NONE) {
473 pr_err("missing phy_rx address\n");
474 return -EINVAL;
475 }
476
477 pipe3->phy_rx = map_physmem(addr, sz, MAP_NOCACHE);
478 if (!pipe3->phy_rx) {
479 pr_err("unable to remap phy_rx\n");
480 return -EINVAL;
481 }
482
483 /* PLLCTRL */
Simon Glassba1dea42017-05-17 17:18:05 -0600484 addr = devfdt_get_addr_size_index(dev, 2, &sz);
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200485 if (addr == FDT_ADDR_T_NONE) {
Masahiro Yamada81e10422017-09-16 14:10:41 +0900486 pr_err("missing pll ctrl address\n");
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200487 return -EINVAL;
488 }
489
490 pipe3->pll_ctrl_base = map_physmem(addr, sz, MAP_NOCACHE);
491 if (!pipe3->pll_ctrl_base) {
Masahiro Yamada81e10422017-09-16 14:10:41 +0900492 pr_err("unable to remap pll ctrl\n");
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200493 return -EINVAL;
494 }
495
496 pipe3->power_reg = get_reg(dev, "syscon-phy-power");
497 if (!pipe3->power_reg)
498 return -EINVAL;
499
Roger Quadroscf608642019-11-06 16:21:16 +0200500 data = (struct pipe3_data *)dev_get_driver_data(dev);
501 pipe3->mode = data->mode;
502 pipe3->dpll_map = data->dpll_map;
Roger Quadros80c69c62019-11-06 16:21:17 +0200503 pipe3->settings = data->settings;
Roger Quadroscf608642019-11-06 16:21:16 +0200504
505 if (pipe3->mode == PIPE3_MODE_SATA) {
Vignesh R5b22df52018-11-29 10:57:38 +0100506 pipe3->pll_reset_reg = get_reg(dev, "syscon-pllreset");
507 if (!pipe3->pll_reset_reg)
508 return -EINVAL;
509 }
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200510
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200511 return 0;
512}
513
514static struct pipe3_dpll_map dpll_map_sata[] = {
Roger Quadros5015e922019-11-06 16:21:15 +0200515 {12000000, {625, 4, 4, 6, 0} }, /* 12 MHz */
516 {16800000, {625, 6, 4, 7, 0} }, /* 16.8 MHz */
517 {19200000, {625, 7, 4, 6, 0} }, /* 19.2 MHz */
518 {20000000, {750, 9, 4, 6, 0} }, /* 20 MHz */
519 {26000000, {750, 12, 4, 6, 0} }, /* 26 MHz */
520 {38400000, {625, 15, 4, 6, 0} }, /* 38.4 MHz */
521 { }, /* Terminator */
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200522};
523
Vignesh R5b22df52018-11-29 10:57:38 +0100524static struct pipe3_dpll_map dpll_map_usb[] = {
525 {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */
526 {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */
527 {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */
528 {20000000, {1000, 7, 4, 10, 0} }, /* 20 MHz */
529 {26000000, {1250, 12, 4, 20, 0} }, /* 26 MHz */
530 {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */
531 { }, /* Terminator */
532};
533
Roger Quadroscf608642019-11-06 16:21:16 +0200534static struct pipe3_data data_usb = {
535 .mode = PIPE3_MODE_USBSS,
536 .dpll_map = dpll_map_usb,
Roger Quadros80c69c62019-11-06 16:21:17 +0200537 .settings = {
538 /* DRA75x TRM Table 26-17. Preferred USB3_PHY_RX SCP Register Settings */
539 .ana_interface = INTERFACE_MODE_USBSS,
540 .ana_losd = 0xa,
541 .dig_fastlock = 1,
542 .dig_lbw = 3,
543 .dig_stepcnt = 0,
544 .dig_stl = 0x3,
545 .dig_thr = 1,
546 .dig_thr_mode = 1,
547 .dig_2ndo_sdm_mode = 0,
548 .dig_hs_rate = 0,
549 .dig_ovrd_hs_rate = 1,
550 .dll_trim_sel = 0x2,
551 .dll_phint_rate = 0x3,
552 .eq_lev = 0,
553 .eq_ftc = 0,
554 .eq_ctl = 0x9,
555 .eq_ovrd_lev = 0,
556 .eq_ovrd_ftc = 0,
557 },
Roger Quadroscf608642019-11-06 16:21:16 +0200558};
559
560static struct pipe3_data data_sata = {
561 .mode = PIPE3_MODE_SATA,
562 .dpll_map = dpll_map_sata,
Roger Quadros80c69c62019-11-06 16:21:17 +0200563 .settings = {
564 /* DRA75x TRM Table 26-9. Preferred SATA_PHY_RX SCP Register Settings */
565 .ana_interface = INTERFACE_MODE_SATA_3P0,
566 .ana_losd = 0x5,
567 .dig_fastlock = 1,
568 .dig_lbw = 3,
569 .dig_stepcnt = 0,
570 .dig_stl = 0x3,
571 .dig_thr = 1,
572 .dig_thr_mode = 1,
573 .dig_2ndo_sdm_mode = 0,
574 .dig_hs_rate = 0, /* Not in TRM preferred settings */
575 .dig_ovrd_hs_rate = 0, /* Not in TRM preferred settings */
576 .dll_trim_sel = 0x1,
577 .dll_phint_rate = 0x2, /* for 1.5 GHz DPLL clock */
578 .eq_lev = 0,
579 .eq_ftc = 0x1f,
580 .eq_ctl = 0,
581 .eq_ovrd_lev = 1,
582 .eq_ovrd_ftc = 1,
583 },
Roger Quadroscf608642019-11-06 16:21:16 +0200584};
585
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200586static const struct udevice_id pipe3_phy_ids[] = {
Roger Quadroscf608642019-11-06 16:21:16 +0200587 { .compatible = "ti,phy-pipe3-sata", .data = (ulong)&data_sata },
588 { .compatible = "ti,omap-usb3", .data = (ulong)&data_usb},
Jean-Jacques Hiblot73e95eb2017-04-24 11:51:29 +0200589 { }
590};
591
592static struct phy_ops pipe3_phy_ops = {
593 .init = pipe3_init,
594 .power_on = pipe3_power_on,
595 .power_off = pipe3_power_off,
596 .exit = pipe3_exit,
597};
598
599U_BOOT_DRIVER(pipe3_phy) = {
600 .name = "pipe3_phy",
601 .id = UCLASS_PHY,
602 .of_match = pipe3_phy_ids,
603 .ops = &pipe3_phy_ops,
604 .probe = pipe3_phy_probe,
605 .priv_auto_alloc_size = sizeof(struct omap_pipe3),
606};