blob: 98fe6c6fce36aaf3dd35140daa29c4c6cb2ced3a [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>
Simon Glasscd93d622020-05-10 11:40:13 -060015#include <linux/bitops.h>
Simon Glassc05ed002020-05-10 11:40:11 -060016#include <linux/delay.h>
Simon Glass61b29b82020-02-03 07:36:15 -070017#include <linux/err.h>
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +020018
19/* PLLCTRL Registers */
20#define PLL_STATUS 0x00000004
21#define PLL_GO 0x00000008
22#define PLL_CONFIGURATION1 0x0000000C
23#define PLL_CONFIGURATION2 0x00000010
24#define PLL_CONFIGURATION3 0x00000014
25#define PLL_CONFIGURATION4 0x00000020
26
27#define PLL_REGM_MASK 0x001FFE00
28#define PLL_REGM_SHIFT 9
29#define PLL_REGM_F_MASK 0x0003FFFF
30#define PLL_REGM_F_SHIFT 0
31#define PLL_REGN_MASK 0x000001FE
32#define PLL_REGN_SHIFT 1
33#define PLL_SELFREQDCO_MASK 0x0000000E
34#define PLL_SELFREQDCO_SHIFT 1
35#define PLL_SD_MASK 0x0003FC00
36#define PLL_SD_SHIFT 10
37#define SET_PLL_GO 0x1
38#define PLL_TICOPWDN BIT(16)
39#define PLL_LDOPWDN BIT(15)
40#define PLL_LOCK 0x2
41#define PLL_IDLE 0x1
42
43/* Software rest for the SATA PLL (in CTRL_CORE_SMA_SW_0 register)*/
44#define SATA_PLL_SOFT_RESET (1<<18)
45
46/* PHY POWER CONTROL Register */
Roger Quadros305a5d82019-11-06 16:21:18 +020047#define PIPE3_PHY_PWRCTL_CLK_CMD_MASK GENMASK(21, 14)
48#define PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT 14
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +020049
Roger Quadros305a5d82019-11-06 16:21:18 +020050#define PIPE3_PHY_PWRCTL_CLK_FREQ_MASK GENMASK(31, 22)
51#define PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT 22
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +020052
Roger Quadros305a5d82019-11-06 16:21:18 +020053#define PIPE3_PHY_RX_POWERON (0x1 << PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT)
54#define PIPE3_PHY_TX_POWERON (0x2 << PIPE3_PHY_PWRCTL_CLK_CMD_SHIFT)
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +020055
Roger Quadros277d5d12019-11-06 16:21:17 +020056/* PHY RX Registers */
57#define PIPE3_PHY_RX_ANA_PROGRAMMABILITY 0x0000000C
58#define INTERFACE_MASK GENMASK(31, 27)
59#define INTERFACE_SHIFT 27
60#define INTERFACE_MODE_USBSS BIT(4)
61#define INTERFACE_MODE_SATA_1P5 BIT(3)
62#define INTERFACE_MODE_SATA_3P0 BIT(2)
63#define INTERFACE_MODE_PCIE BIT(0)
64
65#define LOSD_MASK GENMASK(17, 14)
66#define LOSD_SHIFT 14
67#define MEM_PLLDIV GENMASK(6, 5)
68
69#define PIPE3_PHY_RX_TRIM 0x0000001C
70#define MEM_DLL_TRIM_SEL_MASK GENMASK(31, 30)
71#define MEM_DLL_TRIM_SHIFT 30
72
73#define PIPE3_PHY_RX_DLL 0x00000024
74#define MEM_DLL_PHINT_RATE_MASK GENMASK(31, 30)
75#define MEM_DLL_PHINT_RATE_SHIFT 30
76
77#define PIPE3_PHY_RX_DIGITAL_MODES 0x00000028
78#define MEM_HS_RATE_MASK GENMASK(28, 27)
79#define MEM_HS_RATE_SHIFT 27
80#define MEM_OVRD_HS_RATE BIT(26)
81#define MEM_OVRD_HS_RATE_SHIFT 26
82#define MEM_CDR_FASTLOCK BIT(23)
83#define MEM_CDR_FASTLOCK_SHIFT 23
84#define MEM_CDR_LBW_MASK GENMASK(22, 21)
85#define MEM_CDR_LBW_SHIFT 21
86#define MEM_CDR_STEPCNT_MASK GENMASK(20, 19)
87#define MEM_CDR_STEPCNT_SHIFT 19
88#define MEM_CDR_STL_MASK GENMASK(18, 16)
89#define MEM_CDR_STL_SHIFT 16
90#define MEM_CDR_THR_MASK GENMASK(15, 13)
91#define MEM_CDR_THR_SHIFT 13
92#define MEM_CDR_THR_MODE BIT(12)
93#define MEM_CDR_THR_MODE_SHIFT 12
94#define MEM_CDR_2NDO_SDM_MODE BIT(11)
95#define MEM_CDR_2NDO_SDM_MODE_SHIFT 11
96
97#define PIPE3_PHY_RX_EQUALIZER 0x00000038
98#define MEM_EQLEV_MASK GENMASK(31, 16)
99#define MEM_EQLEV_SHIFT 16
100#define MEM_EQFTC_MASK GENMASK(15, 11)
101#define MEM_EQFTC_SHIFT 11
102#define MEM_EQCTL_MASK GENMASK(10, 7)
103#define MEM_EQCTL_SHIFT 7
104#define MEM_OVRD_EQLEV BIT(2)
105#define MEM_OVRD_EQLEV_SHIFT 2
106#define MEM_OVRD_EQFTC BIT(1)
107#define MEM_OVRD_EQFTC_SHIFT 1
108
109#define SATA_PHY_RX_IO_AND_A2D_OVERRIDES 0x44
110#define MEM_CDR_LOS_SOURCE_MASK GENMASK(10, 9)
111#define MEM_CDR_LOS_SOURCE_SHIFT 9
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200112
113#define PLL_IDLE_TIME 100 /* in milliseconds */
114#define PLL_LOCK_TIME 100 /* in milliseconds */
115
Roger Quadros53df65a2019-11-06 16:21:16 +0200116enum pipe3_mode { PIPE3_MODE_PCIE = 1,
117 PIPE3_MODE_SATA,
118 PIPE3_MODE_USBSS };
119
Roger Quadros277d5d12019-11-06 16:21:17 +0200120struct pipe3_settings {
121 u8 ana_interface;
122 u8 ana_losd;
123 u8 dig_fastlock;
124 u8 dig_lbw;
125 u8 dig_stepcnt;
126 u8 dig_stl;
127 u8 dig_thr;
128 u8 dig_thr_mode;
129 u8 dig_2ndo_sdm_mode;
130 u8 dig_hs_rate;
131 u8 dig_ovrd_hs_rate;
132 u8 dll_trim_sel;
133 u8 dll_phint_rate;
134 u8 eq_lev;
135 u8 eq_ftc;
136 u8 eq_ctl;
137 u8 eq_ovrd_lev;
138 u8 eq_ovrd_ftc;
139};
140
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200141struct omap_pipe3 {
142 void __iomem *pll_ctrl_base;
Roger Quadros277d5d12019-11-06 16:21:17 +0200143 void __iomem *phy_rx;
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200144 void __iomem *power_reg;
145 void __iomem *pll_reset_reg;
146 struct pipe3_dpll_map *dpll_map;
Roger Quadros53df65a2019-11-06 16:21:16 +0200147 enum pipe3_mode mode;
Roger Quadros277d5d12019-11-06 16:21:17 +0200148 struct pipe3_settings settings;
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200149};
150
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200151struct pipe3_dpll_params {
152 u16 m;
153 u8 n;
154 u8 freq:3;
155 u8 sd;
156 u32 mf;
157};
158
159struct pipe3_dpll_map {
160 unsigned long rate;
161 struct pipe3_dpll_params params;
162};
163
Roger Quadros53df65a2019-11-06 16:21:16 +0200164struct pipe3_data {
165 enum pipe3_mode mode;
166 struct pipe3_dpll_map *dpll_map;
Roger Quadros277d5d12019-11-06 16:21:17 +0200167 struct pipe3_settings settings;
Roger Quadros53df65a2019-11-06 16:21:16 +0200168};
169
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200170static inline u32 omap_pipe3_readl(void __iomem *addr, unsigned offset)
171{
172 return readl(addr + offset);
173}
174
175static inline void omap_pipe3_writel(void __iomem *addr, unsigned offset,
176 u32 data)
177{
178 writel(data, addr + offset);
179}
180
181static struct pipe3_dpll_params *omap_pipe3_get_dpll_params(struct omap_pipe3
182 *pipe3)
183{
184 u32 rate;
185 struct pipe3_dpll_map *dpll_map = pipe3->dpll_map;
186
187 rate = get_sys_clk_freq();
188
189 for (; dpll_map->rate; dpll_map++) {
190 if (rate == dpll_map->rate)
191 return &dpll_map->params;
192 }
193
194 printf("%s: No DPLL configuration for %u Hz SYS CLK\n",
195 __func__, rate);
196 return NULL;
197}
198
199static int omap_pipe3_wait_lock(struct omap_pipe3 *pipe3)
200{
201 u32 val;
202 int timeout = PLL_LOCK_TIME;
203
204 do {
205 mdelay(1);
206 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_STATUS);
207 if (val & PLL_LOCK)
208 break;
209 } while (--timeout);
210
211 if (!(val & PLL_LOCK)) {
212 printf("%s: DPLL failed to lock\n", __func__);
213 return -EBUSY;
214 }
215
216 return 0;
217}
218
219static int omap_pipe3_dpll_program(struct omap_pipe3 *pipe3)
220{
221 u32 val;
222 struct pipe3_dpll_params *dpll_params;
223
224 dpll_params = omap_pipe3_get_dpll_params(pipe3);
225 if (!dpll_params) {
226 printf("%s: Invalid DPLL parameters\n", __func__);
227 return -EINVAL;
228 }
229
230 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION1);
231 val &= ~PLL_REGN_MASK;
232 val |= dpll_params->n << PLL_REGN_SHIFT;
233 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION1, val);
234
235 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION2);
Vignesh R0752d702018-11-29 10:57:38 +0100236 val &= ~(PLL_SELFREQDCO_MASK | PLL_IDLE);
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200237 val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT;
238 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION2, val);
239
240 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION1);
241 val &= ~PLL_REGM_MASK;
242 val |= dpll_params->m << PLL_REGM_SHIFT;
243 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION1, val);
244
245 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION4);
246 val &= ~PLL_REGM_F_MASK;
247 val |= dpll_params->mf << PLL_REGM_F_SHIFT;
248 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION4, val);
249
250 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION3);
251 val &= ~PLL_SD_MASK;
252 val |= dpll_params->sd << PLL_SD_SHIFT;
253 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION3, val);
254
255 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_GO, SET_PLL_GO);
256
257 return omap_pipe3_wait_lock(pipe3);
258}
259
260static void omap_control_pipe3_power(struct omap_pipe3 *pipe3, int on)
261{
262 u32 val, rate;
263
264 val = readl(pipe3->power_reg);
265
266 rate = get_sys_clk_freq();
267 rate = rate/1000000;
268
269 if (on) {
Roger Quadros305a5d82019-11-06 16:21:18 +0200270 val &= ~(PIPE3_PHY_PWRCTL_CLK_CMD_MASK |
271 PIPE3_PHY_PWRCTL_CLK_FREQ_MASK);
272 val |= rate << PIPE3_PHY_PWRCTL_CLK_FREQ_SHIFT;
273 writel(val, pipe3->power_reg);
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200274
Roger Quadros305a5d82019-11-06 16:21:18 +0200275 /* Power up TX before RX for SATA & USB */
276 val |= PIPE3_PHY_TX_POWERON;
277 writel(val, pipe3->power_reg);
278
279 val |= PIPE3_PHY_RX_POWERON;
280 writel(val, pipe3->power_reg);
281 } else {
282 val &= ~PIPE3_PHY_PWRCTL_CLK_CMD_MASK;
283 writel(val, pipe3->power_reg);
284 }
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200285}
286
Roger Quadros277d5d12019-11-06 16:21:17 +0200287static void ti_pipe3_calibrate(struct omap_pipe3 *phy)
288{
289 u32 val;
290 struct pipe3_settings *s = &phy->settings;
291
292 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_ANA_PROGRAMMABILITY);
293 val &= ~(INTERFACE_MASK | LOSD_MASK | MEM_PLLDIV);
294 val = (s->ana_interface << INTERFACE_SHIFT | s->ana_losd << LOSD_SHIFT);
295 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_ANA_PROGRAMMABILITY, val);
296
297 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_DIGITAL_MODES);
298 val &= ~(MEM_HS_RATE_MASK | MEM_OVRD_HS_RATE | MEM_CDR_FASTLOCK |
299 MEM_CDR_LBW_MASK | MEM_CDR_STEPCNT_MASK | MEM_CDR_STL_MASK |
300 MEM_CDR_THR_MASK | MEM_CDR_THR_MODE | MEM_CDR_2NDO_SDM_MODE);
301 val |= s->dig_hs_rate << MEM_HS_RATE_SHIFT |
302 s->dig_ovrd_hs_rate << MEM_OVRD_HS_RATE_SHIFT |
303 s->dig_fastlock << MEM_CDR_FASTLOCK_SHIFT |
304 s->dig_lbw << MEM_CDR_LBW_SHIFT |
305 s->dig_stepcnt << MEM_CDR_STEPCNT_SHIFT |
306 s->dig_stl << MEM_CDR_STL_SHIFT |
307 s->dig_thr << MEM_CDR_THR_SHIFT |
308 s->dig_thr_mode << MEM_CDR_THR_MODE_SHIFT |
309 s->dig_2ndo_sdm_mode << MEM_CDR_2NDO_SDM_MODE_SHIFT;
310 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_DIGITAL_MODES, val);
311
312 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_TRIM);
313 val &= ~MEM_DLL_TRIM_SEL_MASK;
314 val |= s->dll_trim_sel << MEM_DLL_TRIM_SHIFT;
315 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_TRIM, val);
316
317 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_DLL);
318 val &= ~MEM_DLL_PHINT_RATE_MASK;
319 val |= s->dll_phint_rate << MEM_DLL_PHINT_RATE_SHIFT;
320 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_DLL, val);
321
322 val = omap_pipe3_readl(phy->phy_rx, PIPE3_PHY_RX_EQUALIZER);
323 val &= ~(MEM_EQLEV_MASK | MEM_EQFTC_MASK | MEM_EQCTL_MASK |
324 MEM_OVRD_EQLEV | MEM_OVRD_EQFTC);
325 val |= s->eq_lev << MEM_EQLEV_SHIFT |
326 s->eq_ftc << MEM_EQFTC_SHIFT |
327 s->eq_ctl << MEM_EQCTL_SHIFT |
328 s->eq_ovrd_lev << MEM_OVRD_EQLEV_SHIFT |
329 s->eq_ovrd_ftc << MEM_OVRD_EQFTC_SHIFT;
330 omap_pipe3_writel(phy->phy_rx, PIPE3_PHY_RX_EQUALIZER, val);
331
332 if (phy->mode == PIPE3_MODE_SATA) {
333 val = omap_pipe3_readl(phy->phy_rx,
334 SATA_PHY_RX_IO_AND_A2D_OVERRIDES);
335 val &= ~MEM_CDR_LOS_SOURCE_MASK;
336 omap_pipe3_writel(phy->phy_rx, SATA_PHY_RX_IO_AND_A2D_OVERRIDES,
337 val);
338 }
339}
340
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200341static int pipe3_init(struct phy *phy)
342{
343 int ret;
344 u32 val;
345 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
346
347 /* Program the DPLL only if not locked */
348 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_STATUS);
349 if (!(val & PLL_LOCK)) {
350 ret = omap_pipe3_dpll_program(pipe3);
351 if (ret)
352 return ret;
Roger Quadros277d5d12019-11-06 16:21:17 +0200353
354 ti_pipe3_calibrate(pipe3);
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200355 } else {
356 /* else just bring it out of IDLE mode */
357 val = omap_pipe3_readl(pipe3->pll_ctrl_base,
358 PLL_CONFIGURATION2);
359 if (val & PLL_IDLE) {
360 val &= ~PLL_IDLE;
361 omap_pipe3_writel(pipe3->pll_ctrl_base,
362 PLL_CONFIGURATION2, val);
363 ret = omap_pipe3_wait_lock(pipe3);
364 if (ret)
365 return ret;
366 }
367 }
368 return 0;
369}
370
371static int pipe3_power_on(struct phy *phy)
372{
373 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
374
375 /* Power up the PHY */
376 omap_control_pipe3_power(pipe3, 1);
377
378 return 0;
379}
380
381static int pipe3_power_off(struct phy *phy)
382{
383 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
384
385 /* Power down the PHY */
386 omap_control_pipe3_power(pipe3, 0);
387
388 return 0;
389}
390
391static int pipe3_exit(struct phy *phy)
392{
393 u32 val;
394 int timeout = PLL_IDLE_TIME;
395 struct omap_pipe3 *pipe3 = dev_get_priv(phy->dev);
396
397 pipe3_power_off(phy);
398
399 /* Put DPLL in IDLE mode */
400 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_CONFIGURATION2);
401 val |= PLL_IDLE;
402 omap_pipe3_writel(pipe3->pll_ctrl_base, PLL_CONFIGURATION2, val);
403
404 /* wait for LDO and Oscillator to power down */
405 do {
406 mdelay(1);
407 val = omap_pipe3_readl(pipe3->pll_ctrl_base, PLL_STATUS);
408 if ((val & PLL_TICOPWDN) && (val & PLL_LDOPWDN))
409 break;
410 } while (--timeout);
411
412 if (!(val & PLL_TICOPWDN) || !(val & PLL_LDOPWDN)) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900413 pr_err("%s: Failed to power down DPLL: PLL_STATUS 0x%x\n",
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200414 __func__, val);
415 return -EBUSY;
416 }
417
Vignesh R0752d702018-11-29 10:57:38 +0100418 if (pipe3->pll_reset_reg) {
419 val = readl(pipe3->pll_reset_reg);
420 writel(val | SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg);
421 mdelay(1);
422 writel(val & ~SATA_PLL_SOFT_RESET, pipe3->pll_reset_reg);
423 }
424
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200425 return 0;
426}
427
428static void *get_reg(struct udevice *dev, const char *name)
429{
430 struct udevice *syscon;
431 struct regmap *regmap;
432 const fdt32_t *cell;
433 int len, err;
434 void *base;
435
436 err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
437 name, &syscon);
438 if (err) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900439 pr_err("unable to find syscon device for %s (%d)\n",
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200440 name, err);
441 return NULL;
442 }
443
444 regmap = syscon_get_regmap(syscon);
445 if (IS_ERR(regmap)) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900446 pr_err("unable to find regmap for %s (%ld)\n",
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200447 name, PTR_ERR(regmap));
448 return NULL;
449 }
450
Simon Glassda409cc2017-05-17 17:18:09 -0600451 cell = fdt_getprop(gd->fdt_blob, dev_of_offset(dev), name,
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200452 &len);
453 if (len < 2*sizeof(fdt32_t)) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900454 pr_err("offset not available for %s\n", name);
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200455 return NULL;
456 }
457
458 base = regmap_get_range(regmap, 0);
459 if (!base)
460 return NULL;
461
462 return fdtdec_get_number(cell + 1, 1) + base;
463}
464
465static int pipe3_phy_probe(struct udevice *dev)
466{
467 fdt_addr_t addr;
468 fdt_size_t sz;
469 struct omap_pipe3 *pipe3 = dev_get_priv(dev);
Roger Quadros53df65a2019-11-06 16:21:16 +0200470 struct pipe3_data *data;
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200471
Roger Quadros277d5d12019-11-06 16:21:17 +0200472 /* PHY_RX */
473 addr = devfdt_get_addr_size_index(dev, 0, &sz);
474 if (addr == FDT_ADDR_T_NONE) {
475 pr_err("missing phy_rx address\n");
476 return -EINVAL;
477 }
478
479 pipe3->phy_rx = map_physmem(addr, sz, MAP_NOCACHE);
480 if (!pipe3->phy_rx) {
481 pr_err("unable to remap phy_rx\n");
482 return -EINVAL;
483 }
484
485 /* PLLCTRL */
Simon Glassa821c4a2017-05-17 17:18:05 -0600486 addr = devfdt_get_addr_size_index(dev, 2, &sz);
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200487 if (addr == FDT_ADDR_T_NONE) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900488 pr_err("missing pll ctrl address\n");
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200489 return -EINVAL;
490 }
491
492 pipe3->pll_ctrl_base = map_physmem(addr, sz, MAP_NOCACHE);
493 if (!pipe3->pll_ctrl_base) {
Masahiro Yamada9b643e32017-09-16 14:10:41 +0900494 pr_err("unable to remap pll ctrl\n");
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200495 return -EINVAL;
496 }
497
498 pipe3->power_reg = get_reg(dev, "syscon-phy-power");
499 if (!pipe3->power_reg)
500 return -EINVAL;
501
Roger Quadros53df65a2019-11-06 16:21:16 +0200502 data = (struct pipe3_data *)dev_get_driver_data(dev);
503 pipe3->mode = data->mode;
504 pipe3->dpll_map = data->dpll_map;
Roger Quadros277d5d12019-11-06 16:21:17 +0200505 pipe3->settings = data->settings;
Roger Quadros53df65a2019-11-06 16:21:16 +0200506
507 if (pipe3->mode == PIPE3_MODE_SATA) {
Vignesh R0752d702018-11-29 10:57:38 +0100508 pipe3->pll_reset_reg = get_reg(dev, "syscon-pllreset");
509 if (!pipe3->pll_reset_reg)
510 return -EINVAL;
511 }
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200512
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200513 return 0;
514}
515
516static struct pipe3_dpll_map dpll_map_sata[] = {
Roger Quadrosb055e672019-11-06 16:21:15 +0200517 {12000000, {625, 4, 4, 6, 0} }, /* 12 MHz */
518 {16800000, {625, 6, 4, 7, 0} }, /* 16.8 MHz */
519 {19200000, {625, 7, 4, 6, 0} }, /* 19.2 MHz */
520 {20000000, {750, 9, 4, 6, 0} }, /* 20 MHz */
521 {26000000, {750, 12, 4, 6, 0} }, /* 26 MHz */
522 {38400000, {625, 15, 4, 6, 0} }, /* 38.4 MHz */
523 { }, /* Terminator */
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200524};
525
Vignesh R0752d702018-11-29 10:57:38 +0100526static struct pipe3_dpll_map dpll_map_usb[] = {
527 {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */
528 {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */
529 {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */
530 {20000000, {1000, 7, 4, 10, 0} }, /* 20 MHz */
531 {26000000, {1250, 12, 4, 20, 0} }, /* 26 MHz */
532 {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */
533 { }, /* Terminator */
534};
535
Roger Quadros53df65a2019-11-06 16:21:16 +0200536static struct pipe3_data data_usb = {
537 .mode = PIPE3_MODE_USBSS,
538 .dpll_map = dpll_map_usb,
Roger Quadros277d5d12019-11-06 16:21:17 +0200539 .settings = {
540 /* DRA75x TRM Table 26-17. Preferred USB3_PHY_RX SCP Register Settings */
541 .ana_interface = INTERFACE_MODE_USBSS,
542 .ana_losd = 0xa,
543 .dig_fastlock = 1,
544 .dig_lbw = 3,
545 .dig_stepcnt = 0,
546 .dig_stl = 0x3,
547 .dig_thr = 1,
548 .dig_thr_mode = 1,
549 .dig_2ndo_sdm_mode = 0,
550 .dig_hs_rate = 0,
551 .dig_ovrd_hs_rate = 1,
552 .dll_trim_sel = 0x2,
553 .dll_phint_rate = 0x3,
554 .eq_lev = 0,
555 .eq_ftc = 0,
556 .eq_ctl = 0x9,
557 .eq_ovrd_lev = 0,
558 .eq_ovrd_ftc = 0,
559 },
Roger Quadros53df65a2019-11-06 16:21:16 +0200560};
561
562static struct pipe3_data data_sata = {
563 .mode = PIPE3_MODE_SATA,
564 .dpll_map = dpll_map_sata,
Roger Quadros277d5d12019-11-06 16:21:17 +0200565 .settings = {
566 /* DRA75x TRM Table 26-9. Preferred SATA_PHY_RX SCP Register Settings */
567 .ana_interface = INTERFACE_MODE_SATA_3P0,
568 .ana_losd = 0x5,
569 .dig_fastlock = 1,
570 .dig_lbw = 3,
571 .dig_stepcnt = 0,
572 .dig_stl = 0x3,
573 .dig_thr = 1,
574 .dig_thr_mode = 1,
575 .dig_2ndo_sdm_mode = 0,
576 .dig_hs_rate = 0, /* Not in TRM preferred settings */
577 .dig_ovrd_hs_rate = 0, /* Not in TRM preferred settings */
578 .dll_trim_sel = 0x1,
579 .dll_phint_rate = 0x2, /* for 1.5 GHz DPLL clock */
580 .eq_lev = 0,
581 .eq_ftc = 0x1f,
582 .eq_ctl = 0,
583 .eq_ovrd_lev = 1,
584 .eq_ovrd_ftc = 1,
585 },
Roger Quadros53df65a2019-11-06 16:21:16 +0200586};
587
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200588static const struct udevice_id pipe3_phy_ids[] = {
Roger Quadros53df65a2019-11-06 16:21:16 +0200589 { .compatible = "ti,phy-pipe3-sata", .data = (ulong)&data_sata },
590 { .compatible = "ti,omap-usb3", .data = (ulong)&data_usb},
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200591 { }
592};
593
594static struct phy_ops pipe3_phy_ops = {
595 .init = pipe3_init,
596 .power_on = pipe3_power_on,
597 .power_off = pipe3_power_off,
598 .exit = pipe3_exit,
599};
600
601U_BOOT_DRIVER(pipe3_phy) = {
602 .name = "pipe3_phy",
603 .id = UCLASS_PHY,
604 .of_match = pipe3_phy_ids,
605 .ops = &pipe3_phy_ops,
606 .probe = pipe3_phy_probe,
Simon Glass41575d82020-12-03 16:55:17 -0700607 .priv_auto = sizeof(struct omap_pipe3),
Jean-Jacques Hiblot982082d2017-04-24 11:51:29 +0200608};