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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * phy-brcm-usb-init.c - Broadcom USB Phy chip specific init functions
4 *
5 * Copyright (C) 2014-2017 Broadcom
6 */
7
8/*
9 * This module contains USB PHY initialization for power up and S3 resume
10 */
11
12#include <linux/delay.h>
13#include <linux/io.h>
14
15#include <linux/soc/brcmstb/brcmstb.h>
16#include "phy-brcm-usb-init.h"
17
18#define PHY_PORTS 2
19#define PHY_PORT_SELECT_0 0
20#define PHY_PORT_SELECT_1 0x1000
21
22/* Register definitions for the USB CTRL block */
23#define USB_CTRL_SETUP 0x00
24#define USB_CTRL_SETUP_BABO_MASK BIT(0)
25#define USB_CTRL_SETUP_FNHW_MASK BIT(1)
26#define USB_CTRL_SETUP_FNBO_MASK BIT(2)
27#define USB_CTRL_SETUP_WABO_MASK BIT(3)
28#define USB_CTRL_SETUP_IOC_MASK BIT(4)
29#define USB_CTRL_SETUP_IPP_MASK BIT(5)
30#define USB_CTRL_SETUP_SCB_CLIENT_SWAP_MASK BIT(13) /* option */
31#define USB_CTRL_SETUP_SCB1_EN_MASK BIT(14) /* option */
32#define USB_CTRL_SETUP_SCB2_EN_MASK BIT(15) /* option */
33#define USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK BIT(17) /* option */
34#define USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK BIT(16) /* option */
35#define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK BIT(25) /* option */
36#define USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK BIT(26) /* option */
37#define USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK BIT(27) /* opt */
38#define USB_CTRL_SETUP_OC_DISABLE_PORT0_MASK BIT(28)
39#define USB_CTRL_SETUP_OC_DISABLE_PORT1_MASK BIT(29)
40#define USB_CTRL_SETUP_OC_DISABLE_MASK GENMASK(29, 28) /* option */
41#define USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK BIT(30)
42#define USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK BIT(31)
43#define USB_CTRL_SETUP_OC3_DISABLE_MASK GENMASK(31, 30) /* option */
44#define USB_CTRL_PLL_CTL 0x04
45#define USB_CTRL_PLL_CTL_PLL_SUSPEND_EN_MASK BIT(27)
46#define USB_CTRL_PLL_CTL_PLL_RESETB_MASK BIT(30)
47#define USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK BIT(31) /* option */
48#define USB_CTRL_EBRIDGE 0x0c
49#define USB_CTRL_EBRIDGE_EBR_SCB_SIZE_MASK GENMASK(11, 7) /* option */
50#define USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK BIT(17) /* option */
51#define USB_CTRL_OBRIDGE 0x10
52#define USB_CTRL_OBRIDGE_LS_KEEP_ALIVE_MASK BIT(27)
53#define USB_CTRL_MDIO 0x14
54#define USB_CTRL_MDIO2 0x18
55#define USB_CTRL_UTMI_CTL_1 0x2c
56#define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_MASK BIT(11)
57#define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_P1_MASK BIT(27)
58#define USB_CTRL_USB_PM 0x34
59#define USB_CTRL_USB_PM_RMTWKUP_EN_MASK BIT(0)
60#define USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK GENMASK(21, 20) /* option */
61#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK BIT(22) /* option */
62#define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK BIT(23) /* option */
63#define USB_CTRL_USB_PM_USB20_HC_RESETB_MASK GENMASK(29, 28) /* option */
64#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK BIT(30) /* option */
65#define USB_CTRL_USB_PM_SOFT_RESET_MASK BIT(30) /* option */
66#define USB_CTRL_USB_PM_USB_PWRDN_MASK BIT(31) /* option */
67#define USB_CTRL_USB_PM_STATUS 0x38
68#define USB_CTRL_USB30_CTL1 0x60
69#define USB_CTRL_USB30_CTL1_PHY3_PLL_SEQ_START_MASK BIT(4)
70#define USB_CTRL_USB30_CTL1_PHY3_RESETB_MASK BIT(16)
71#define USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK BIT(17) /* option */
72#define USB_CTRL_USB30_CTL1_USB3_IOC_MASK BIT(28) /* option */
73#define USB_CTRL_USB30_CTL1_USB3_IPP_MASK BIT(29) /* option */
74#define USB_CTRL_USB30_PCTL 0x70
75#define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_MASK BIT(1)
76#define USB_CTRL_USB30_PCTL_PHY3_IDDQ_OVERRIDE_MASK BIT(15)
77#define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_P1_MASK BIT(17)
78#define USB_CTRL_USB_DEVICE_CTL1 0x90
79#define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK GENMASK(1, 0) /* option */
80
81/* Register definitions for the XHCI EC block */
82#define USB_XHCI_EC_IRAADR 0x658
83#define USB_XHCI_EC_IRADAT 0x65c
84
85enum brcm_family_type {
86 BRCM_FAMILY_3390A0,
87 BRCM_FAMILY_4908,
88 BRCM_FAMILY_7250B0,
89 BRCM_FAMILY_7271A0,
90 BRCM_FAMILY_7364A0,
91 BRCM_FAMILY_7366C0,
92 BRCM_FAMILY_74371A0,
93 BRCM_FAMILY_7439B0,
94 BRCM_FAMILY_7445D0,
95 BRCM_FAMILY_7260A0,
96 BRCM_FAMILY_7278A0,
97 BRCM_FAMILY_COUNT,
98};
99
100#define USB_BRCM_FAMILY(chip) \
101 [BRCM_FAMILY_##chip] = __stringify(chip)
102
103static const char *family_names[BRCM_FAMILY_COUNT] = {
104 USB_BRCM_FAMILY(3390A0),
105 USB_BRCM_FAMILY(4908),
106 USB_BRCM_FAMILY(7250B0),
107 USB_BRCM_FAMILY(7271A0),
108 USB_BRCM_FAMILY(7364A0),
109 USB_BRCM_FAMILY(7366C0),
110 USB_BRCM_FAMILY(74371A0),
111 USB_BRCM_FAMILY(7439B0),
112 USB_BRCM_FAMILY(7445D0),
113 USB_BRCM_FAMILY(7260A0),
114 USB_BRCM_FAMILY(7278A0),
115};
116
117enum {
118 USB_CTRL_SETUP_SCB1_EN_SELECTOR,
119 USB_CTRL_SETUP_SCB2_EN_SELECTOR,
120 USB_CTRL_SETUP_SS_EHCI64BIT_EN_SELECTOR,
121 USB_CTRL_SETUP_STRAP_IPP_SEL_SELECTOR,
122 USB_CTRL_SETUP_OC3_DISABLE_PORT0_SELECTOR,
123 USB_CTRL_SETUP_OC3_DISABLE_PORT1_SELECTOR,
124 USB_CTRL_SETUP_OC3_DISABLE_SELECTOR,
125 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_SELECTOR,
126 USB_CTRL_USB_PM_BDC_SOFT_RESETB_SELECTOR,
127 USB_CTRL_USB_PM_XHC_SOFT_RESETB_SELECTOR,
128 USB_CTRL_USB_PM_USB_PWRDN_SELECTOR,
129 USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_SELECTOR,
130 USB_CTRL_USB30_CTL1_USB3_IOC_SELECTOR,
131 USB_CTRL_USB30_CTL1_USB3_IPP_SELECTOR,
132 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_SELECTOR,
133 USB_CTRL_USB_PM_SOFT_RESET_SELECTOR,
134 USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_SELECTOR,
135 USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_SELECTOR,
136 USB_CTRL_USB_PM_USB20_HC_RESETB_SELECTOR,
137 USB_CTRL_SETUP_ENDIAN_SELECTOR,
138 USB_CTRL_SELECTOR_COUNT,
139};
140
141#define USB_CTRL_MASK_FAMILY(params, reg, field) \
142 (params->usb_reg_bits_map[USB_CTRL_##reg##_##field##_SELECTOR])
143
144#define USB_CTRL_SET_FAMILY(params, reg, field) \
145 usb_ctrl_set_family(params, USB_CTRL_##reg, \
146 USB_CTRL_##reg##_##field##_SELECTOR)
147#define USB_CTRL_UNSET_FAMILY(params, reg, field) \
148 usb_ctrl_unset_family(params, USB_CTRL_##reg, \
149 USB_CTRL_##reg##_##field##_SELECTOR)
150
151#define MDIO_USB2 0
152#define MDIO_USB3 BIT(31)
153
154#define USB_CTRL_SETUP_ENDIAN_BITS ( \
155 USB_CTRL_MASK(SETUP, BABO) | \
156 USB_CTRL_MASK(SETUP, FNHW) | \
157 USB_CTRL_MASK(SETUP, FNBO) | \
158 USB_CTRL_MASK(SETUP, WABO))
159
160#ifdef __LITTLE_ENDIAN
161#define ENDIAN_SETTINGS ( \
162 USB_CTRL_MASK(SETUP, BABO) | \
163 USB_CTRL_MASK(SETUP, FNHW))
164#else
165#define ENDIAN_SETTINGS ( \
166 USB_CTRL_MASK(SETUP, FNHW) | \
167 USB_CTRL_MASK(SETUP, FNBO) | \
168 USB_CTRL_MASK(SETUP, WABO))
169#endif
170
171struct id_to_type {
172 u32 id;
173 int type;
174};
175
176static const struct id_to_type id_to_type_table[] = {
177 { 0x33900000, BRCM_FAMILY_3390A0 },
178 { 0x72500010, BRCM_FAMILY_7250B0 },
179 { 0x72600000, BRCM_FAMILY_7260A0 },
180 { 0x72550000, BRCM_FAMILY_7260A0 },
181 { 0x72680000, BRCM_FAMILY_7271A0 },
182 { 0x72710000, BRCM_FAMILY_7271A0 },
183 { 0x73640000, BRCM_FAMILY_7364A0 },
184 { 0x73660020, BRCM_FAMILY_7366C0 },
185 { 0x07437100, BRCM_FAMILY_74371A0 },
186 { 0x74390010, BRCM_FAMILY_7439B0 },
187 { 0x74450030, BRCM_FAMILY_7445D0 },
188 { 0x72780000, BRCM_FAMILY_7278A0 },
189 { 0, BRCM_FAMILY_7271A0 }, /* default */
190};
191
192static const u32
193usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
194 /* 3390B0 */
195 [BRCM_FAMILY_3390A0] = {
196 USB_CTRL_SETUP_SCB1_EN_MASK,
197 USB_CTRL_SETUP_SCB2_EN_MASK,
198 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
199 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
200 USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
201 USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
202 USB_CTRL_SETUP_OC3_DISABLE_MASK,
203 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
204 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
205 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
206 USB_CTRL_USB_PM_USB_PWRDN_MASK,
207 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
208 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
209 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
210 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
211 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
212 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
213 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
214 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
215 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
216 },
217 /* 4908 */
218 [BRCM_FAMILY_4908] = {
219 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
220 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
221 0, /* USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */
222 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
223 0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */
224 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
225 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
226 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
227 USB_CTRL_USB_PM_USB_PWRDN_MASK,
228 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
229 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
230 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
231 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
232 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
233 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
234 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
235 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK */
236 0, /* USB_CTRL_SETUP ENDIAN bits */
237 },
238 /* 7250b0 */
239 [BRCM_FAMILY_7250B0] = {
240 USB_CTRL_SETUP_SCB1_EN_MASK,
241 USB_CTRL_SETUP_SCB2_EN_MASK,
242 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
243 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
244 USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
245 USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
246 USB_CTRL_SETUP_OC3_DISABLE_MASK,
247 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
248 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
249 USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
250 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
251 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
252 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
253 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
254 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
255 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
256 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
257 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
258 USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
259 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
260 },
261 /* 7271a0 */
262 [BRCM_FAMILY_7271A0] = {
263 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
264 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
265 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
266 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
267 USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
268 USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
269 USB_CTRL_SETUP_OC3_DISABLE_MASK,
270 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
271 USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
272 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
273 USB_CTRL_USB_PM_USB_PWRDN_MASK,
274 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
275 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
276 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
277 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
278 USB_CTRL_USB_PM_SOFT_RESET_MASK,
279 USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
280 USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
281 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
282 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
283 },
284 /* 7364a0 */
285 [BRCM_FAMILY_7364A0] = {
286 USB_CTRL_SETUP_SCB1_EN_MASK,
287 USB_CTRL_SETUP_SCB2_EN_MASK,
288 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
289 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
290 USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
291 USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
292 USB_CTRL_SETUP_OC3_DISABLE_MASK,
293 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
294 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
295 USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
296 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
297 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
298 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
299 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
300 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
301 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
302 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
303 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
304 USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
305 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
306 },
307 /* 7366c0 */
308 [BRCM_FAMILY_7366C0] = {
309 USB_CTRL_SETUP_SCB1_EN_MASK,
310 USB_CTRL_SETUP_SCB2_EN_MASK,
311 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
312 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
313 USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
314 USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
315 USB_CTRL_SETUP_OC3_DISABLE_MASK,
316 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
317 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
318 USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
319 USB_CTRL_USB_PM_USB_PWRDN_MASK,
320 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
321 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
322 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
323 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
324 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
325 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
326 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
327 USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
328 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
329 },
330 /* 74371A0 */
331 [BRCM_FAMILY_74371A0] = {
332 USB_CTRL_SETUP_SCB1_EN_MASK,
333 USB_CTRL_SETUP_SCB2_EN_MASK,
334 USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
335 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
336 0, /* USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK */
337 0, /* USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK */
338 0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */
339 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
340 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
341 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
342 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
343 USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
344 USB_CTRL_USB30_CTL1_USB3_IOC_MASK,
345 USB_CTRL_USB30_CTL1_USB3_IPP_MASK,
346 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
347 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
348 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
349 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
350 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
351 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
352 },
353 /* 7439B0 */
354 [BRCM_FAMILY_7439B0] = {
355 USB_CTRL_SETUP_SCB1_EN_MASK,
356 USB_CTRL_SETUP_SCB2_EN_MASK,
357 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
358 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
359 USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
360 USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
361 USB_CTRL_SETUP_OC3_DISABLE_MASK,
362 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
363 USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
364 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
365 USB_CTRL_USB_PM_USB_PWRDN_MASK,
366 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
367 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
368 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
369 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
370 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
371 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
372 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
373 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
374 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
375 },
376 /* 7445d0 */
377 [BRCM_FAMILY_7445D0] = {
378 USB_CTRL_SETUP_SCB1_EN_MASK,
379 USB_CTRL_SETUP_SCB2_EN_MASK,
380 USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
381 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
382 USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
383 USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
384 USB_CTRL_SETUP_OC3_DISABLE_MASK,
385 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
386 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
387 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
388 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
389 USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
390 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
391 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
392 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
393 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
394 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
395 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
396 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
397 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
398 },
399 /* 7260a0 */
400 [BRCM_FAMILY_7260A0] = {
401 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
402 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
403 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
404 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
405 USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
406 USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
407 USB_CTRL_SETUP_OC3_DISABLE_MASK,
408 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
409 USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
410 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
411 USB_CTRL_USB_PM_USB_PWRDN_MASK,
412 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
413 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
414 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
415 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
416 USB_CTRL_USB_PM_SOFT_RESET_MASK,
417 USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
418 USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
419 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
420 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
421 },
422 /* 7278a0 */
423 [BRCM_FAMILY_7278A0] = {
424 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
425 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
426 0, /*USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */
427 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
428 USB_CTRL_SETUP_OC3_DISABLE_PORT0_MASK,
429 USB_CTRL_SETUP_OC3_DISABLE_PORT1_MASK,
430 USB_CTRL_SETUP_OC3_DISABLE_MASK,
431 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
432 USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
433 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
434 USB_CTRL_USB_PM_USB_PWRDN_MASK,
435 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
436 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
437 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
438 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
439 USB_CTRL_USB_PM_SOFT_RESET_MASK,
440 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
441 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
442 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
443 0, /* USB_CTRL_SETUP ENDIAN bits */
444 },
445};
446
447static inline
448void usb_ctrl_unset_family(struct brcm_usb_init_params *params,
449 u32 reg_offset, u32 field)
450{
451 u32 mask;
452
453 mask = params->usb_reg_bits_map[field];
454 brcm_usb_ctrl_unset(params->regs[BRCM_REGS_CTRL] + reg_offset, mask);
455};
456
457static inline
458void usb_ctrl_set_family(struct brcm_usb_init_params *params,
459 u32 reg_offset, u32 field)
460{
461 u32 mask;
462
463 mask = params->usb_reg_bits_map[field];
464 brcm_usb_ctrl_set(params->regs[BRCM_REGS_CTRL] + reg_offset, mask);
465};
466
467static u32 brcmusb_usb_mdio_read(void __iomem *ctrl_base, u32 reg, int mode)
468{
469 u32 data;
470
471 data = (reg << 16) | mode;
472 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
473 data |= (1 << 24);
474 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
475 data &= ~(1 << 24);
476 /* wait for the 60MHz parallel to serial shifter */
477 usleep_range(10, 20);
478 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
479 /* wait for the 60MHz parallel to serial shifter */
480 usleep_range(10, 20);
481
482 return brcm_usb_readl(USB_CTRL_REG(ctrl_base, MDIO2)) & 0xffff;
483}
484
485static void brcmusb_usb_mdio_write(void __iomem *ctrl_base, u32 reg,
486 u32 val, int mode)
487{
488 u32 data;
489
490 data = (reg << 16) | val | mode;
491 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
492 data |= (1 << 25);
493 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
494 data &= ~(1 << 25);
495
496 /* wait for the 60MHz parallel to serial shifter */
497 usleep_range(10, 20);
498 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
499 /* wait for the 60MHz parallel to serial shifter */
500 usleep_range(10, 20);
501}
502
503static void brcmusb_usb_phy_ldo_fix(void __iomem *ctrl_base)
504{
505 /* first disable FSM but also leave it that way */
506 /* to allow normal suspend/resume */
507 USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN);
508 USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN_P1);
509
510 /* reset USB 2.0 PLL */
511 USB_CTRL_UNSET(ctrl_base, PLL_CTL, PLL_RESETB);
512 /* PLL reset period */
513 udelay(1);
514 USB_CTRL_SET(ctrl_base, PLL_CTL, PLL_RESETB);
515 /* Give PLL enough time to lock */
516 usleep_range(1000, 2000);
517}
518
519static void brcmusb_usb2_eye_fix(void __iomem *ctrl_base)
520{
521 /* Increase USB 2.0 TX level to meet spec requirement */
522 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x80a0, MDIO_USB2);
523 brcmusb_usb_mdio_write(ctrl_base, 0x0a, 0xc6a0, MDIO_USB2);
524}
525
526static void brcmusb_usb3_pll_fix(void __iomem *ctrl_base)
527{
528 /* Set correct window for PLL lock detect */
529 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
530 brcmusb_usb_mdio_write(ctrl_base, 0x07, 0x1503, MDIO_USB3);
531}
532
533static void brcmusb_usb3_enable_pipe_reset(void __iomem *ctrl_base)
534{
535 u32 val;
536
537 /* Re-enable USB 3.0 pipe reset */
538 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
539 val = brcmusb_usb_mdio_read(ctrl_base, 0x0f, MDIO_USB3) | 0x200;
540 brcmusb_usb_mdio_write(ctrl_base, 0x0f, val, MDIO_USB3);
541}
542
543static void brcmusb_usb3_enable_sigdet(void __iomem *ctrl_base)
544{
545 u32 val, ofs;
546 int ii;
547
548 ofs = 0;
549 for (ii = 0; ii < PHY_PORTS; ++ii) {
550 /* Set correct default for sigdet */
551 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8080 + ofs),
552 MDIO_USB3);
553 val = brcmusb_usb_mdio_read(ctrl_base, 0x05, MDIO_USB3);
554 val = (val & ~0x800f) | 0x800d;
555 brcmusb_usb_mdio_write(ctrl_base, 0x05, val, MDIO_USB3);
556 ofs = PHY_PORT_SELECT_1;
557 }
558}
559
560static void brcmusb_usb3_enable_skip_align(void __iomem *ctrl_base)
561{
562 u32 val, ofs;
563 int ii;
564
565 ofs = 0;
566 for (ii = 0; ii < PHY_PORTS; ++ii) {
567 /* Set correct default for SKIP align */
568 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8060 + ofs),
569 MDIO_USB3);
570 val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0x200;
571 brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
572 ofs = PHY_PORT_SELECT_1;
573 }
574}
575
576static void brcmusb_usb3_unfreeze_aeq(void __iomem *ctrl_base)
577{
578 u32 val, ofs;
579 int ii;
580
581 ofs = 0;
582 for (ii = 0; ii < PHY_PORTS; ++ii) {
583 /* Let EQ freeze after TSEQ */
584 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x80e0 + ofs),
585 MDIO_USB3);
586 val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3);
587 val &= ~0x0008;
588 brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
589 ofs = PHY_PORT_SELECT_1;
590 }
591}
592
593static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params)
594{
595 u32 ofs;
596 int ii;
597 void __iomem *ctrl_base = params->regs[BRCM_REGS_CTRL];
598
599 /*
600 * On newer B53 based SoC's, the reference clock for the
601 * 3.0 PLL has been changed from 50MHz to 54MHz so the
602 * PLL needs to be reprogrammed.
603 * See SWLINUX-4006.
604 *
605 * On the 7364C0, the reference clock for the
606 * 3.0 PLL has been changed from 50MHz to 54MHz to
607 * work around a MOCA issue.
608 * See SWLINUX-4169.
609 */
610 switch (params->selected_family) {
611 case BRCM_FAMILY_3390A0:
612 case BRCM_FAMILY_4908:
613 case BRCM_FAMILY_7250B0:
614 case BRCM_FAMILY_7366C0:
615 case BRCM_FAMILY_74371A0:
616 case BRCM_FAMILY_7439B0:
617 case BRCM_FAMILY_7445D0:
618 case BRCM_FAMILY_7260A0:
619 return;
620 case BRCM_FAMILY_7364A0:
621 if (BRCM_REV(params->family_id) < 0x20)
622 return;
623 break;
624 }
625
626 /* set USB 3.0 PLL to accept 54Mhz reference clock */
627 USB_CTRL_UNSET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
628
629 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
630 brcmusb_usb_mdio_write(ctrl_base, 0x10, 0x5784, MDIO_USB3);
631 brcmusb_usb_mdio_write(ctrl_base, 0x11, 0x01d0, MDIO_USB3);
632 brcmusb_usb_mdio_write(ctrl_base, 0x12, 0x1DE8, MDIO_USB3);
633 brcmusb_usb_mdio_write(ctrl_base, 0x13, 0xAA80, MDIO_USB3);
634 brcmusb_usb_mdio_write(ctrl_base, 0x14, 0x8826, MDIO_USB3);
635 brcmusb_usb_mdio_write(ctrl_base, 0x15, 0x0044, MDIO_USB3);
636 brcmusb_usb_mdio_write(ctrl_base, 0x16, 0x8000, MDIO_USB3);
637 brcmusb_usb_mdio_write(ctrl_base, 0x17, 0x0851, MDIO_USB3);
638 brcmusb_usb_mdio_write(ctrl_base, 0x18, 0x0000, MDIO_USB3);
639
640 /* both ports */
641 ofs = 0;
642 for (ii = 0; ii < PHY_PORTS; ++ii) {
643 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8040 + ofs),
644 MDIO_USB3);
645 brcmusb_usb_mdio_write(ctrl_base, 0x03, 0x0090, MDIO_USB3);
646 brcmusb_usb_mdio_write(ctrl_base, 0x04, 0x0134, MDIO_USB3);
647 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8020 + ofs),
648 MDIO_USB3);
649 brcmusb_usb_mdio_write(ctrl_base, 0x01, 0x00e2, MDIO_USB3);
650 ofs = PHY_PORT_SELECT_1;
651 }
652
653 /* restart PLL sequence */
654 USB_CTRL_SET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
655 /* Give PLL enough time to lock */
656 usleep_range(1000, 2000);
657}
658
659static void brcmusb_usb3_ssc_enable(void __iomem *ctrl_base)
660{
661 u32 val;
662
663 /* Enable USB 3.0 TX spread spectrum */
664 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8040, MDIO_USB3);
665 val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
666 brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
667
668 /* Currently, USB 3.0 SSC is enabled via port 0 MDIO registers,
669 * which should have been adequate. However, due to a bug in the
670 * USB 3.0 PHY, it must be enabled via both ports (HWUSB3DVT-26).
671 */
672 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x9040, MDIO_USB3);
673 val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
674 brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
675}
676
677static void brcmusb_usb3_phy_workarounds(struct brcm_usb_init_params *params)
678{
679 void __iomem *ctrl_base = params->regs[BRCM_REGS_CTRL];
680
681 brcmusb_usb3_pll_fix(ctrl_base);
682 brcmusb_usb3_pll_54mhz(params);
683 brcmusb_usb3_ssc_enable(ctrl_base);
684 brcmusb_usb3_enable_pipe_reset(ctrl_base);
685 brcmusb_usb3_enable_sigdet(ctrl_base);
686 brcmusb_usb3_enable_skip_align(ctrl_base);
687 brcmusb_usb3_unfreeze_aeq(ctrl_base);
688}
689
690static void brcmusb_memc_fix(struct brcm_usb_init_params *params)
691{
692 u32 prid;
693
694 if (params->selected_family != BRCM_FAMILY_7445D0)
695 return;
696 /*
697 * This is a workaround for HW7445-1869 where a DMA write ends up
698 * doing a read pre-fetch after the end of the DMA buffer. This
699 * causes a problem when the DMA buffer is at the end of physical
700 * memory, causing the pre-fetch read to access non-existent memory,
701 * and the chip bondout has MEMC2 disabled. When the pre-fetch read
702 * tries to use the disabled MEMC2, it hangs the bus. The workaround
703 * is to disable MEMC2 access in the usb controller which avoids
704 * the hang.
705 */
706
707 prid = params->product_id & 0xfffff000;
708 switch (prid) {
709 case 0x72520000:
710 case 0x74480000:
711 case 0x74490000:
712 case 0x07252000:
713 case 0x07448000:
714 case 0x07449000:
715 USB_CTRL_UNSET_FAMILY(params, SETUP, SCB2_EN);
716 }
717}
718
719static void brcmusb_usb3_otp_fix(struct brcm_usb_init_params *params)
720{
721 void __iomem *xhci_ec_base = params->regs[BRCM_REGS_XHCI_EC];
722 u32 val;
723
724 if (params->family_id != 0x74371000 || !xhci_ec_base)
725 return;
726 brcm_usb_writel(0xa20c, USB_XHCI_EC_REG(xhci_ec_base, IRAADR));
727 val = brcm_usb_readl(USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
728
729 /* set cfg_pick_ss_lock */
730 val |= (1 << 27);
731 brcm_usb_writel(val, USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
732
733 /* Reset USB 3.0 PHY for workaround to take effect */
734 USB_CTRL_UNSET(params->regs[BRCM_REGS_CTRL], USB30_CTL1, PHY3_RESETB);
735 USB_CTRL_SET(params->regs[BRCM_REGS_CTRL], USB30_CTL1, PHY3_RESETB);
736}
737
738static void brcmusb_xhci_soft_reset(struct brcm_usb_init_params *params,
739 int on_off)
740{
741 /* Assert reset */
742 if (on_off) {
743 if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
744 USB_CTRL_UNSET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
745 else
746 USB_CTRL_UNSET_FAMILY(params,
747 USB30_CTL1, XHC_SOFT_RESETB);
748 } else { /* De-assert reset */
749 if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
750 USB_CTRL_SET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
751 else
752 USB_CTRL_SET_FAMILY(params, USB30_CTL1,
753 XHC_SOFT_RESETB);
754 }
755}
756
757/*
758 * Return the best map table family. The order is:
759 * - exact match of chip and major rev
760 * - exact match of chip and closest older major rev
761 * - default chip/rev.
762 * NOTE: The minor rev is always ignored.
763 */
764static enum brcm_family_type get_family_type(
765 struct brcm_usb_init_params *params)
766{
767 int last_type = -1;
768 u32 last_family = 0;
769 u32 family_no_major;
770 unsigned int x;
771 u32 family;
772
773 family = params->family_id & 0xfffffff0;
774 family_no_major = params->family_id & 0xffffff00;
775 for (x = 0; id_to_type_table[x].id; x++) {
776 if (family == id_to_type_table[x].id)
777 return id_to_type_table[x].type;
778 if (family_no_major == (id_to_type_table[x].id & 0xffffff00))
779 if (family > id_to_type_table[x].id &&
780 last_family < id_to_type_table[x].id) {
781 last_family = id_to_type_table[x].id;
782 last_type = id_to_type_table[x].type;
783 }
784 }
785
786 /* If no match, return the default family */
787 if (last_type == -1)
788 return id_to_type_table[x].type;
789 return last_type;
790}
791
792static void usb_init_ipp(struct brcm_usb_init_params *params)
793{
794 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
795 u32 reg;
796 u32 orig_reg;
797
798 /* Starting with the 7445d0, there are no longer separate 3.0
799 * versions of IOC and IPP.
800 */
801 if (USB_CTRL_MASK_FAMILY(params, USB30_CTL1, USB3_IOC)) {
802 if (params->ioc)
803 USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IOC);
804 if (params->ipp == 1)
805 USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IPP);
806 }
807
808 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
809 orig_reg = reg;
810 if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_CC_DRD_MODE_ENABLE_SEL))
811 /* Never use the strap, it's going away. */
812 reg &= ~(USB_CTRL_MASK_FAMILY(params,
813 SETUP,
814 STRAP_CC_DRD_MODE_ENABLE_SEL));
815 if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_IPP_SEL))
816 /* override ipp strap pin (if it exits) */
817 if (params->ipp != 2)
818 reg &= ~(USB_CTRL_MASK_FAMILY(params, SETUP,
819 STRAP_IPP_SEL));
820
821 /* Override the default OC and PP polarity */
822 reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC));
823 if (params->ioc)
824 reg |= USB_CTRL_MASK(SETUP, IOC);
825 if (params->ipp == 1)
826 reg |= USB_CTRL_MASK(SETUP, IPP);
827 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
828
829 /*
830 * If we're changing IPP, make sure power is off long enough
831 * to turn off any connected devices.
832 */
833 if ((reg ^ orig_reg) & USB_CTRL_MASK(SETUP, IPP))
834 msleep(50);
835}
836
837static void usb_wake_enable(struct brcm_usb_init_params *params,
838 bool enable)
839{
840 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
841
842 if (enable)
843 USB_CTRL_SET(ctrl, USB_PM, RMTWKUP_EN);
844 else
845 USB_CTRL_UNSET(ctrl, USB_PM, RMTWKUP_EN);
846}
847
848static void usb_init_common(struct brcm_usb_init_params *params)
849{
850 u32 reg;
851 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
852
853 /* Clear any pending wake conditions */
854 usb_wake_enable(params, false);
855 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_PM_STATUS));
856 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_PM_STATUS));
857
858 /* Take USB out of power down */
859 if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) {
860 USB_CTRL_UNSET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
861 /* 1 millisecond - for USB clocks to settle down */
862 usleep_range(1000, 2000);
863 }
864
865 if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN)) {
866 USB_CTRL_UNSET_FAMILY(params, USB_PM, USB_PWRDN);
867 /* 1 millisecond - for USB clocks to settle down */
868 usleep_range(1000, 2000);
869 }
870
871 if (params->selected_family != BRCM_FAMILY_74371A0 &&
872 (BRCM_ID(params->family_id) != 0x7364))
873 /*
874 * HW7439-637: 7439a0 and its derivatives do not have large
875 * enough descriptor storage for this.
876 */
877 USB_CTRL_SET_FAMILY(params, SETUP, SS_EHCI64BIT_EN);
878
879 /* Block auto PLL suspend by USB2 PHY (Sasi) */
880 USB_CTRL_SET(ctrl, PLL_CTL, PLL_SUSPEND_EN);
881
882 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
883 if (params->selected_family == BRCM_FAMILY_7364A0)
884 /* Suppress overcurrent indication from USB30 ports for A0 */
885 reg |= USB_CTRL_MASK_FAMILY(params, SETUP, OC3_DISABLE);
886
887 brcmusb_usb_phy_ldo_fix(ctrl);
888 brcmusb_usb2_eye_fix(ctrl);
889
890 /*
891 * Make sure the second and third memory controller
892 * interfaces are enabled if they exist.
893 */
894 if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN))
895 reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN);
896 if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN))
897 reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN);
898 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
899
900 brcmusb_memc_fix(params);
901
902 /* Workaround for false positive OC for 7439b2 in DRD/Device mode */
903 if ((params->family_id == 0x74390012) &&
904 (params->supported_port_modes != USB_CTLR_MODE_HOST)) {
905 USB_CTRL_SET(ctrl, SETUP, OC_DISABLE_PORT1);
906 USB_CTRL_SET_FAMILY(params, SETUP, OC3_DISABLE_PORT1);
907 }
908
909 if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
910 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
911 reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
912 PORT_MODE);
913 reg |= params->port_mode;
914 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
915 }
916 if (USB_CTRL_MASK_FAMILY(params, USB_PM, BDC_SOFT_RESETB)) {
917 switch (params->supported_port_modes) {
918 case USB_CTLR_MODE_HOST:
919 USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
920 break;
921 default:
922 USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
923 USB_CTRL_SET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
924 break;
925 }
926 }
927 if (USB_CTRL_MASK_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE)) {
928 if (params->supported_port_modes == USB_CTLR_MODE_TYPEC_PD)
929 USB_CTRL_SET_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE);
930 else
931 USB_CTRL_UNSET_FAMILY(params, SETUP,
932 CC_DRD_MODE_ENABLE);
933 }
934}
935
936static void usb_init_eohci(struct brcm_usb_init_params *params)
937{
938 u32 reg;
939 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
940
941 if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
942 USB_CTRL_SET_FAMILY(params, USB_PM, USB20_HC_RESETB);
943
944 if (params->selected_family == BRCM_FAMILY_7366C0)
945 /*
946 * Don't enable this so the memory controller doesn't read
947 * into memory holes. NOTE: This bit is low true on 7366C0.
948 */
949 USB_CTRL_SET(ctrl, EBRIDGE, ESTOP_SCB_REQ);
950
951 /* Setup the endian bits */
952 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
953 reg &= ~USB_CTRL_SETUP_ENDIAN_BITS;
954 reg |= USB_CTRL_MASK_FAMILY(params, SETUP, ENDIAN);
955 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
956
957 if (params->selected_family == BRCM_FAMILY_7271A0)
958 /* Enable LS keep alive fix for certain keyboards */
959 USB_CTRL_SET(ctrl, OBRIDGE, LS_KEEP_ALIVE);
960
961 if (params->family_id == 0x72550000) {
962 /*
963 * Make the burst size 512 bytes to fix a hardware bug
964 * on the 7255a0. See HW7255-24.
965 */
966 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, EBRIDGE));
967 reg &= ~USB_CTRL_MASK(EBRIDGE, EBR_SCB_SIZE);
968 reg |= 0x800;
969 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, EBRIDGE));
970 }
971}
972
973static void usb_init_xhci(struct brcm_usb_init_params *params)
974{
975 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
976
977 USB_CTRL_UNSET(ctrl, USB30_PCTL, PHY3_IDDQ_OVERRIDE);
978 /* 1 millisecond - for USB clocks to settle down */
979 usleep_range(1000, 2000);
980
981 if (BRCM_ID(params->family_id) == 0x7366) {
982 /*
983 * The PHY3_SOFT_RESETB bits default to the wrong state.
984 */
985 USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB);
986 USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB_P1);
987 }
988
989 /*
990 * Kick start USB3 PHY
991 * Make sure it's low to insure a rising edge.
992 */
993 USB_CTRL_UNSET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
994 USB_CTRL_SET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
995
996 brcmusb_usb3_phy_workarounds(params);
997 brcmusb_xhci_soft_reset(params, 0);
998 brcmusb_usb3_otp_fix(params);
999}
1000
1001static void usb_uninit_common(struct brcm_usb_init_params *params)
1002{
1003 if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN))
1004 USB_CTRL_SET_FAMILY(params, USB_PM, USB_PWRDN);
1005
1006 if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN))
1007 USB_CTRL_SET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
1008 if (params->wake_enabled)
1009 usb_wake_enable(params, true);
1010}
1011
1012static void usb_uninit_eohci(struct brcm_usb_init_params *params)
1013{
1014}
1015
1016static void usb_uninit_xhci(struct brcm_usb_init_params *params)
1017{
1018 brcmusb_xhci_soft_reset(params, 1);
1019 USB_CTRL_SET(params->regs[BRCM_REGS_CTRL], USB30_PCTL,
1020 PHY3_IDDQ_OVERRIDE);
1021}
1022
1023static int usb_get_dual_select(struct brcm_usb_init_params *params)
1024{
1025 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
1026 u32 reg = 0;
1027
1028 pr_debug("%s\n", __func__);
1029 if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
1030 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
1031 reg &= USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
1032 PORT_MODE);
1033 }
1034 return reg;
1035}
1036
1037static void usb_set_dual_select(struct brcm_usb_init_params *params)
1038{
1039 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
1040 u32 reg;
1041
1042 pr_debug("%s\n", __func__);
1043
1044 if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
1045 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
1046 reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
1047 PORT_MODE);
1048 reg |= params->port_mode;
1049 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
1050 }
1051}
1052
1053static const struct brcm_usb_init_ops bcm7445_ops = {
1054 .init_ipp = usb_init_ipp,
1055 .init_common = usb_init_common,
1056 .init_eohci = usb_init_eohci,
1057 .init_xhci = usb_init_xhci,
1058 .uninit_common = usb_uninit_common,
1059 .uninit_eohci = usb_uninit_eohci,
1060 .uninit_xhci = usb_uninit_xhci,
1061 .get_dual_select = usb_get_dual_select,
1062 .set_dual_select = usb_set_dual_select,
1063};
1064
1065void brcm_usb_dvr_init_4908(struct brcm_usb_init_params *params)
1066{
1067 int fam;
1068
1069 fam = BRCM_FAMILY_4908;
1070 params->selected_family = fam;
1071 params->usb_reg_bits_map =
1072 &usb_reg_bits_map_table[fam][0];
1073 params->family_name = family_names[fam];
1074 params->ops = &bcm7445_ops;
1075}
1076
1077void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params)
1078{
1079 int fam;
1080
1081 pr_debug("%s\n", __func__);
1082
1083 fam = get_family_type(params);
1084 params->selected_family = fam;
1085 params->usb_reg_bits_map =
1086 &usb_reg_bits_map_table[fam][0];
1087 params->family_name = family_names[fam];
1088 params->ops = &bcm7445_ops;
1089}
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * phy-brcm-usb-init.c - Broadcom USB Phy chip specific init functions
4 *
5 * Copyright (C) 2014-2017 Broadcom
6 */
7
8/*
9 * This module contains USB PHY initialization for power up and S3 resume
10 */
11
12#include <linux/delay.h>
13#include <linux/io.h>
14
15#include <linux/soc/brcmstb/brcmstb.h>
16#include "phy-brcm-usb-init.h"
17
18#define PHY_PORTS 2
19#define PHY_PORT_SELECT_0 0
20#define PHY_PORT_SELECT_1 0x1000
21
22/* Register definitions for the USB CTRL block */
23#define USB_CTRL_SETUP 0x00
24#define USB_CTRL_SETUP_IOC_MASK 0x00000010
25#define USB_CTRL_SETUP_IPP_MASK 0x00000020
26#define USB_CTRL_SETUP_BABO_MASK 0x00000001
27#define USB_CTRL_SETUP_FNHW_MASK 0x00000002
28#define USB_CTRL_SETUP_FNBO_MASK 0x00000004
29#define USB_CTRL_SETUP_WABO_MASK 0x00000008
30#define USB_CTRL_SETUP_SCB_CLIENT_SWAP_MASK 0x00002000 /* option */
31#define USB_CTRL_SETUP_SCB1_EN_MASK 0x00004000 /* option */
32#define USB_CTRL_SETUP_SCB2_EN_MASK 0x00008000 /* option */
33#define USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK 0X00020000 /* option */
34#define USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK 0x00010000 /* option */
35#define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK 0x02000000 /* option */
36#define USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK 0x04000000 /* option */
37#define USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK 0x08000000 /* opt */
38#define USB_CTRL_SETUP_OC3_DISABLE_MASK 0xc0000000 /* option */
39#define USB_CTRL_PLL_CTL 0x04
40#define USB_CTRL_PLL_CTL_PLL_SUSPEND_EN_MASK 0x08000000
41#define USB_CTRL_PLL_CTL_PLL_RESETB_MASK 0x40000000
42#define USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK 0x80000000 /* option */
43#define USB_CTRL_EBRIDGE 0x0c
44#define USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK 0x00020000 /* option */
45#define USB_CTRL_EBRIDGE_EBR_SCB_SIZE_MASK 0x00000f80 /* option */
46#define USB_CTRL_OBRIDGE 0x10
47#define USB_CTRL_OBRIDGE_LS_KEEP_ALIVE_MASK 0x08000000
48#define USB_CTRL_MDIO 0x14
49#define USB_CTRL_MDIO2 0x18
50#define USB_CTRL_UTMI_CTL_1 0x2c
51#define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_MASK 0x00000800
52#define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_P1_MASK 0x08000000
53#define USB_CTRL_USB_PM 0x34
54#define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK 0x00800000 /* option */
55#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK 0x00400000 /* option */
56#define USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK 0x40000000 /* option */
57#define USB_CTRL_USB_PM_USB_PWRDN_MASK 0x80000000 /* option */
58#define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000 /* option */
59#define USB_CTRL_USB_PM_USB20_HC_RESETB_MASK 0x30000000 /* option */
60#define USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK 0x00300000 /* option */
61#define USB_CTRL_USB_PM_RMTWKUP_EN_MASK 0x00000001
62#define USB_CTRL_USB_PM_STATUS 0x38
63#define USB_CTRL_USB30_CTL1 0x60
64#define USB_CTRL_USB30_CTL1_PHY3_PLL_SEQ_START_MASK 0x00000010
65#define USB_CTRL_USB30_CTL1_PHY3_RESETB_MASK 0x00010000
66#define USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK 0x00020000 /* option */
67#define USB_CTRL_USB30_CTL1_USB3_IOC_MASK 0x10000000 /* option */
68#define USB_CTRL_USB30_CTL1_USB3_IPP_MASK 0x20000000 /* option */
69#define USB_CTRL_USB30_PCTL 0x70
70#define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_MASK 0x00000002
71#define USB_CTRL_USB30_PCTL_PHY3_IDDQ_OVERRIDE_MASK 0x00008000
72#define USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_P1_MASK 0x00020000
73#define USB_CTRL_USB_DEVICE_CTL1 0x90
74#define USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK 0x00000003 /* option */
75
76/* Register definitions for the XHCI EC block */
77#define USB_XHCI_EC_IRAADR 0x658
78#define USB_XHCI_EC_IRADAT 0x65c
79
80enum brcm_family_type {
81 BRCM_FAMILY_3390A0,
82 BRCM_FAMILY_7250B0,
83 BRCM_FAMILY_7271A0,
84 BRCM_FAMILY_7364A0,
85 BRCM_FAMILY_7366C0,
86 BRCM_FAMILY_74371A0,
87 BRCM_FAMILY_7439B0,
88 BRCM_FAMILY_7445D0,
89 BRCM_FAMILY_7260A0,
90 BRCM_FAMILY_7278A0,
91 BRCM_FAMILY_COUNT,
92};
93
94#define USB_BRCM_FAMILY(chip) \
95 [BRCM_FAMILY_##chip] = __stringify(chip)
96
97static const char *family_names[BRCM_FAMILY_COUNT] = {
98 USB_BRCM_FAMILY(3390A0),
99 USB_BRCM_FAMILY(7250B0),
100 USB_BRCM_FAMILY(7271A0),
101 USB_BRCM_FAMILY(7364A0),
102 USB_BRCM_FAMILY(7366C0),
103 USB_BRCM_FAMILY(74371A0),
104 USB_BRCM_FAMILY(7439B0),
105 USB_BRCM_FAMILY(7445D0),
106 USB_BRCM_FAMILY(7260A0),
107 USB_BRCM_FAMILY(7278A0),
108};
109
110enum {
111 USB_CTRL_SETUP_SCB1_EN_SELECTOR,
112 USB_CTRL_SETUP_SCB2_EN_SELECTOR,
113 USB_CTRL_SETUP_SS_EHCI64BIT_EN_SELECTOR,
114 USB_CTRL_SETUP_STRAP_IPP_SEL_SELECTOR,
115 USB_CTRL_SETUP_OC3_DISABLE_SELECTOR,
116 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_SELECTOR,
117 USB_CTRL_USB_PM_BDC_SOFT_RESETB_SELECTOR,
118 USB_CTRL_USB_PM_XHC_SOFT_RESETB_SELECTOR,
119 USB_CTRL_USB_PM_USB_PWRDN_SELECTOR,
120 USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_SELECTOR,
121 USB_CTRL_USB30_CTL1_USB3_IOC_SELECTOR,
122 USB_CTRL_USB30_CTL1_USB3_IPP_SELECTOR,
123 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_SELECTOR,
124 USB_CTRL_USB_PM_SOFT_RESET_SELECTOR,
125 USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_SELECTOR,
126 USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_SELECTOR,
127 USB_CTRL_USB_PM_USB20_HC_RESETB_SELECTOR,
128 USB_CTRL_SETUP_ENDIAN_SELECTOR,
129 USB_CTRL_SELECTOR_COUNT,
130};
131
132#define USB_CTRL_MASK_FAMILY(params, reg, field) \
133 (params->usb_reg_bits_map[USB_CTRL_##reg##_##field##_SELECTOR])
134
135#define USB_CTRL_SET_FAMILY(params, reg, field) \
136 usb_ctrl_set_family(params, USB_CTRL_##reg, \
137 USB_CTRL_##reg##_##field##_SELECTOR)
138#define USB_CTRL_UNSET_FAMILY(params, reg, field) \
139 usb_ctrl_unset_family(params, USB_CTRL_##reg, \
140 USB_CTRL_##reg##_##field##_SELECTOR)
141
142#define MDIO_USB2 0
143#define MDIO_USB3 BIT(31)
144
145#define USB_CTRL_SETUP_ENDIAN_BITS ( \
146 USB_CTRL_MASK(SETUP, BABO) | \
147 USB_CTRL_MASK(SETUP, FNHW) | \
148 USB_CTRL_MASK(SETUP, FNBO) | \
149 USB_CTRL_MASK(SETUP, WABO))
150
151#ifdef __LITTLE_ENDIAN
152#define ENDIAN_SETTINGS ( \
153 USB_CTRL_MASK(SETUP, BABO) | \
154 USB_CTRL_MASK(SETUP, FNHW))
155#else
156#define ENDIAN_SETTINGS ( \
157 USB_CTRL_MASK(SETUP, FNHW) | \
158 USB_CTRL_MASK(SETUP, FNBO) | \
159 USB_CTRL_MASK(SETUP, WABO))
160#endif
161
162struct id_to_type {
163 u32 id;
164 int type;
165};
166
167static const struct id_to_type id_to_type_table[] = {
168 { 0x33900000, BRCM_FAMILY_3390A0 },
169 { 0x72500010, BRCM_FAMILY_7250B0 },
170 { 0x72600000, BRCM_FAMILY_7260A0 },
171 { 0x72550000, BRCM_FAMILY_7260A0 },
172 { 0x72680000, BRCM_FAMILY_7271A0 },
173 { 0x72710000, BRCM_FAMILY_7271A0 },
174 { 0x73640000, BRCM_FAMILY_7364A0 },
175 { 0x73660020, BRCM_FAMILY_7366C0 },
176 { 0x07437100, BRCM_FAMILY_74371A0 },
177 { 0x74390010, BRCM_FAMILY_7439B0 },
178 { 0x74450030, BRCM_FAMILY_7445D0 },
179 { 0x72780000, BRCM_FAMILY_7278A0 },
180 { 0, BRCM_FAMILY_7271A0 }, /* default */
181};
182
183static const u32
184usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
185 /* 3390B0 */
186 [BRCM_FAMILY_3390A0] = {
187 USB_CTRL_SETUP_SCB1_EN_MASK,
188 USB_CTRL_SETUP_SCB2_EN_MASK,
189 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
190 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
191 USB_CTRL_SETUP_OC3_DISABLE_MASK,
192 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
193 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
194 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
195 USB_CTRL_USB_PM_USB_PWRDN_MASK,
196 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
197 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
198 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
199 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
200 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
201 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
202 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
203 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
204 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
205 },
206 /* 7250b0 */
207 [BRCM_FAMILY_7250B0] = {
208 USB_CTRL_SETUP_SCB1_EN_MASK,
209 USB_CTRL_SETUP_SCB2_EN_MASK,
210 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
211 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
212 USB_CTRL_SETUP_OC3_DISABLE_MASK,
213 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
214 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
215 USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
216 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
217 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
218 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
219 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
220 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
221 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
222 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
223 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
224 USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
225 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
226 },
227 /* 7271a0 */
228 [BRCM_FAMILY_7271A0] = {
229 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
230 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
231 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
232 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
233 USB_CTRL_SETUP_OC3_DISABLE_MASK,
234 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
235 USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
236 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
237 USB_CTRL_USB_PM_USB_PWRDN_MASK,
238 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
239 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
240 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
241 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
242 USB_CTRL_USB_PM_SOFT_RESET_MASK,
243 USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
244 USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
245 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
246 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
247 },
248 /* 7364a0 */
249 [BRCM_FAMILY_7364A0] = {
250 USB_CTRL_SETUP_SCB1_EN_MASK,
251 USB_CTRL_SETUP_SCB2_EN_MASK,
252 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
253 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
254 USB_CTRL_SETUP_OC3_DISABLE_MASK,
255 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
256 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
257 USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
258 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
259 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
260 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
261 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
262 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
263 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
264 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
265 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
266 USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
267 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
268 },
269 /* 7366c0 */
270 [BRCM_FAMILY_7366C0] = {
271 USB_CTRL_SETUP_SCB1_EN_MASK,
272 USB_CTRL_SETUP_SCB2_EN_MASK,
273 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
274 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
275 USB_CTRL_SETUP_OC3_DISABLE_MASK,
276 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
277 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
278 USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
279 USB_CTRL_USB_PM_USB_PWRDN_MASK,
280 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
281 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
282 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
283 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
284 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
285 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
286 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
287 USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
288 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
289 },
290 /* 74371A0 */
291 [BRCM_FAMILY_74371A0] = {
292 USB_CTRL_SETUP_SCB1_EN_MASK,
293 USB_CTRL_SETUP_SCB2_EN_MASK,
294 USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
295 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
296 0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */
297 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
298 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
299 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
300 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
301 USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
302 USB_CTRL_USB30_CTL1_USB3_IOC_MASK,
303 USB_CTRL_USB30_CTL1_USB3_IPP_MASK,
304 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
305 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
306 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
307 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
308 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
309 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
310 },
311 /* 7439B0 */
312 [BRCM_FAMILY_7439B0] = {
313 USB_CTRL_SETUP_SCB1_EN_MASK,
314 USB_CTRL_SETUP_SCB2_EN_MASK,
315 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
316 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
317 USB_CTRL_SETUP_OC3_DISABLE_MASK,
318 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
319 USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
320 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
321 USB_CTRL_USB_PM_USB_PWRDN_MASK,
322 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
323 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
324 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
325 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
326 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
327 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
328 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
329 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
330 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
331 },
332 /* 7445d0 */
333 [BRCM_FAMILY_7445D0] = {
334 USB_CTRL_SETUP_SCB1_EN_MASK,
335 USB_CTRL_SETUP_SCB2_EN_MASK,
336 USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
337 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
338 USB_CTRL_SETUP_OC3_DISABLE_MASK,
339 USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
340 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
341 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
342 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
343 USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
344 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
345 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
346 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
347 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
348 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
349 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
350 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
351 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
352 },
353 /* 7260a0 */
354 [BRCM_FAMILY_7260A0] = {
355 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
356 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
357 USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
358 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
359 USB_CTRL_SETUP_OC3_DISABLE_MASK,
360 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
361 USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
362 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
363 USB_CTRL_USB_PM_USB_PWRDN_MASK,
364 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
365 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
366 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
367 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
368 USB_CTRL_USB_PM_SOFT_RESET_MASK,
369 USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
370 USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
371 USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
372 ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
373 },
374 /* 7278a0 */
375 [BRCM_FAMILY_7278A0] = {
376 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
377 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
378 0, /*USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */
379 USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
380 USB_CTRL_SETUP_OC3_DISABLE_MASK,
381 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
382 USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
383 USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
384 USB_CTRL_USB_PM_USB_PWRDN_MASK,
385 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
386 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
387 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
388 USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
389 USB_CTRL_USB_PM_SOFT_RESET_MASK,
390 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
391 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
392 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
393 0, /* USB_CTRL_SETUP ENDIAN bits */
394 },
395};
396
397static inline
398void usb_ctrl_unset_family(struct brcm_usb_init_params *params,
399 u32 reg_offset, u32 field)
400{
401 u32 mask;
402
403 mask = params->usb_reg_bits_map[field];
404 brcm_usb_ctrl_unset(params->regs[BRCM_REGS_CTRL] + reg_offset, mask);
405};
406
407static inline
408void usb_ctrl_set_family(struct brcm_usb_init_params *params,
409 u32 reg_offset, u32 field)
410{
411 u32 mask;
412
413 mask = params->usb_reg_bits_map[field];
414 brcm_usb_ctrl_set(params->regs[BRCM_REGS_CTRL] + reg_offset, mask);
415};
416
417static u32 brcmusb_usb_mdio_read(void __iomem *ctrl_base, u32 reg, int mode)
418{
419 u32 data;
420
421 data = (reg << 16) | mode;
422 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
423 data |= (1 << 24);
424 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
425 data &= ~(1 << 24);
426 /* wait for the 60MHz parallel to serial shifter */
427 usleep_range(10, 20);
428 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
429 /* wait for the 60MHz parallel to serial shifter */
430 usleep_range(10, 20);
431
432 return brcm_usb_readl(USB_CTRL_REG(ctrl_base, MDIO2)) & 0xffff;
433}
434
435static void brcmusb_usb_mdio_write(void __iomem *ctrl_base, u32 reg,
436 u32 val, int mode)
437{
438 u32 data;
439
440 data = (reg << 16) | val | mode;
441 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
442 data |= (1 << 25);
443 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
444 data &= ~(1 << 25);
445
446 /* wait for the 60MHz parallel to serial shifter */
447 usleep_range(10, 20);
448 brcm_usb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
449 /* wait for the 60MHz parallel to serial shifter */
450 usleep_range(10, 20);
451}
452
453static void brcmusb_usb_phy_ldo_fix(void __iomem *ctrl_base)
454{
455 /* first disable FSM but also leave it that way */
456 /* to allow normal suspend/resume */
457 USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN);
458 USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN_P1);
459
460 /* reset USB 2.0 PLL */
461 USB_CTRL_UNSET(ctrl_base, PLL_CTL, PLL_RESETB);
462 /* PLL reset period */
463 udelay(1);
464 USB_CTRL_SET(ctrl_base, PLL_CTL, PLL_RESETB);
465 /* Give PLL enough time to lock */
466 usleep_range(1000, 2000);
467}
468
469static void brcmusb_usb2_eye_fix(void __iomem *ctrl_base)
470{
471 /* Increase USB 2.0 TX level to meet spec requirement */
472 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x80a0, MDIO_USB2);
473 brcmusb_usb_mdio_write(ctrl_base, 0x0a, 0xc6a0, MDIO_USB2);
474}
475
476static void brcmusb_usb3_pll_fix(void __iomem *ctrl_base)
477{
478 /* Set correct window for PLL lock detect */
479 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
480 brcmusb_usb_mdio_write(ctrl_base, 0x07, 0x1503, MDIO_USB3);
481}
482
483static void brcmusb_usb3_enable_pipe_reset(void __iomem *ctrl_base)
484{
485 u32 val;
486
487 /* Re-enable USB 3.0 pipe reset */
488 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
489 val = brcmusb_usb_mdio_read(ctrl_base, 0x0f, MDIO_USB3) | 0x200;
490 brcmusb_usb_mdio_write(ctrl_base, 0x0f, val, MDIO_USB3);
491}
492
493static void brcmusb_usb3_enable_sigdet(void __iomem *ctrl_base)
494{
495 u32 val, ofs;
496 int ii;
497
498 ofs = 0;
499 for (ii = 0; ii < PHY_PORTS; ++ii) {
500 /* Set correct default for sigdet */
501 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8080 + ofs),
502 MDIO_USB3);
503 val = brcmusb_usb_mdio_read(ctrl_base, 0x05, MDIO_USB3);
504 val = (val & ~0x800f) | 0x800d;
505 brcmusb_usb_mdio_write(ctrl_base, 0x05, val, MDIO_USB3);
506 ofs = PHY_PORT_SELECT_1;
507 }
508}
509
510static void brcmusb_usb3_enable_skip_align(void __iomem *ctrl_base)
511{
512 u32 val, ofs;
513 int ii;
514
515 ofs = 0;
516 for (ii = 0; ii < PHY_PORTS; ++ii) {
517 /* Set correct default for SKIP align */
518 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8060 + ofs),
519 MDIO_USB3);
520 val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0x200;
521 brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
522 ofs = PHY_PORT_SELECT_1;
523 }
524}
525
526static void brcmusb_usb3_unfreeze_aeq(void __iomem *ctrl_base)
527{
528 u32 val, ofs;
529 int ii;
530
531 ofs = 0;
532 for (ii = 0; ii < PHY_PORTS; ++ii) {
533 /* Let EQ freeze after TSEQ */
534 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x80e0 + ofs),
535 MDIO_USB3);
536 val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3);
537 val &= ~0x0008;
538 brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
539 ofs = PHY_PORT_SELECT_1;
540 }
541}
542
543static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params)
544{
545 u32 ofs;
546 int ii;
547 void __iomem *ctrl_base = params->regs[BRCM_REGS_CTRL];
548
549 /*
550 * On newer B53 based SoC's, the reference clock for the
551 * 3.0 PLL has been changed from 50MHz to 54MHz so the
552 * PLL needs to be reprogrammed.
553 * See SWLINUX-4006.
554 *
555 * On the 7364C0, the reference clock for the
556 * 3.0 PLL has been changed from 50MHz to 54MHz to
557 * work around a MOCA issue.
558 * See SWLINUX-4169.
559 */
560 switch (params->selected_family) {
561 case BRCM_FAMILY_3390A0:
562 case BRCM_FAMILY_7250B0:
563 case BRCM_FAMILY_7366C0:
564 case BRCM_FAMILY_74371A0:
565 case BRCM_FAMILY_7439B0:
566 case BRCM_FAMILY_7445D0:
567 case BRCM_FAMILY_7260A0:
568 return;
569 case BRCM_FAMILY_7364A0:
570 if (BRCM_REV(params->family_id) < 0x20)
571 return;
572 break;
573 }
574
575 /* set USB 3.0 PLL to accept 54Mhz reference clock */
576 USB_CTRL_UNSET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
577
578 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
579 brcmusb_usb_mdio_write(ctrl_base, 0x10, 0x5784, MDIO_USB3);
580 brcmusb_usb_mdio_write(ctrl_base, 0x11, 0x01d0, MDIO_USB3);
581 brcmusb_usb_mdio_write(ctrl_base, 0x12, 0x1DE8, MDIO_USB3);
582 brcmusb_usb_mdio_write(ctrl_base, 0x13, 0xAA80, MDIO_USB3);
583 brcmusb_usb_mdio_write(ctrl_base, 0x14, 0x8826, MDIO_USB3);
584 brcmusb_usb_mdio_write(ctrl_base, 0x15, 0x0044, MDIO_USB3);
585 brcmusb_usb_mdio_write(ctrl_base, 0x16, 0x8000, MDIO_USB3);
586 brcmusb_usb_mdio_write(ctrl_base, 0x17, 0x0851, MDIO_USB3);
587 brcmusb_usb_mdio_write(ctrl_base, 0x18, 0x0000, MDIO_USB3);
588
589 /* both ports */
590 ofs = 0;
591 for (ii = 0; ii < PHY_PORTS; ++ii) {
592 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8040 + ofs),
593 MDIO_USB3);
594 brcmusb_usb_mdio_write(ctrl_base, 0x03, 0x0090, MDIO_USB3);
595 brcmusb_usb_mdio_write(ctrl_base, 0x04, 0x0134, MDIO_USB3);
596 brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8020 + ofs),
597 MDIO_USB3);
598 brcmusb_usb_mdio_write(ctrl_base, 0x01, 0x00e2, MDIO_USB3);
599 ofs = PHY_PORT_SELECT_1;
600 }
601
602 /* restart PLL sequence */
603 USB_CTRL_SET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
604 /* Give PLL enough time to lock */
605 usleep_range(1000, 2000);
606}
607
608static void brcmusb_usb3_ssc_enable(void __iomem *ctrl_base)
609{
610 u32 val;
611
612 /* Enable USB 3.0 TX spread spectrum */
613 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8040, MDIO_USB3);
614 val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
615 brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
616
617 /* Currently, USB 3.0 SSC is enabled via port 0 MDIO registers,
618 * which should have been adequate. However, due to a bug in the
619 * USB 3.0 PHY, it must be enabled via both ports (HWUSB3DVT-26).
620 */
621 brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x9040, MDIO_USB3);
622 val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
623 brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
624}
625
626static void brcmusb_usb3_phy_workarounds(struct brcm_usb_init_params *params)
627{
628 void __iomem *ctrl_base = params->regs[BRCM_REGS_CTRL];
629
630 brcmusb_usb3_pll_fix(ctrl_base);
631 brcmusb_usb3_pll_54mhz(params);
632 brcmusb_usb3_ssc_enable(ctrl_base);
633 brcmusb_usb3_enable_pipe_reset(ctrl_base);
634 brcmusb_usb3_enable_sigdet(ctrl_base);
635 brcmusb_usb3_enable_skip_align(ctrl_base);
636 brcmusb_usb3_unfreeze_aeq(ctrl_base);
637}
638
639static void brcmusb_memc_fix(struct brcm_usb_init_params *params)
640{
641 u32 prid;
642
643 if (params->selected_family != BRCM_FAMILY_7445D0)
644 return;
645 /*
646 * This is a workaround for HW7445-1869 where a DMA write ends up
647 * doing a read pre-fetch after the end of the DMA buffer. This
648 * causes a problem when the DMA buffer is at the end of physical
649 * memory, causing the pre-fetch read to access non-existent memory,
650 * and the chip bondout has MEMC2 disabled. When the pre-fetch read
651 * tries to use the disabled MEMC2, it hangs the bus. The workaround
652 * is to disable MEMC2 access in the usb controller which avoids
653 * the hang.
654 */
655
656 prid = params->product_id & 0xfffff000;
657 switch (prid) {
658 case 0x72520000:
659 case 0x74480000:
660 case 0x74490000:
661 case 0x07252000:
662 case 0x07448000:
663 case 0x07449000:
664 USB_CTRL_UNSET_FAMILY(params, SETUP, SCB2_EN);
665 }
666}
667
668static void brcmusb_usb3_otp_fix(struct brcm_usb_init_params *params)
669{
670 void __iomem *xhci_ec_base = params->regs[BRCM_REGS_XHCI_EC];
671 u32 val;
672
673 if (params->family_id != 0x74371000 || !xhci_ec_base)
674 return;
675 brcm_usb_writel(0xa20c, USB_XHCI_EC_REG(xhci_ec_base, IRAADR));
676 val = brcm_usb_readl(USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
677
678 /* set cfg_pick_ss_lock */
679 val |= (1 << 27);
680 brcm_usb_writel(val, USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
681
682 /* Reset USB 3.0 PHY for workaround to take effect */
683 USB_CTRL_UNSET(params->regs[BRCM_REGS_CTRL], USB30_CTL1, PHY3_RESETB);
684 USB_CTRL_SET(params->regs[BRCM_REGS_CTRL], USB30_CTL1, PHY3_RESETB);
685}
686
687static void brcmusb_xhci_soft_reset(struct brcm_usb_init_params *params,
688 int on_off)
689{
690 /* Assert reset */
691 if (on_off) {
692 if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
693 USB_CTRL_UNSET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
694 else
695 USB_CTRL_UNSET_FAMILY(params,
696 USB30_CTL1, XHC_SOFT_RESETB);
697 } else { /* De-assert reset */
698 if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
699 USB_CTRL_SET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
700 else
701 USB_CTRL_SET_FAMILY(params, USB30_CTL1,
702 XHC_SOFT_RESETB);
703 }
704}
705
706/*
707 * Return the best map table family. The order is:
708 * - exact match of chip and major rev
709 * - exact match of chip and closest older major rev
710 * - default chip/rev.
711 * NOTE: The minor rev is always ignored.
712 */
713static enum brcm_family_type get_family_type(
714 struct brcm_usb_init_params *params)
715{
716 int last_type = -1;
717 u32 last_family = 0;
718 u32 family_no_major;
719 unsigned int x;
720 u32 family;
721
722 family = params->family_id & 0xfffffff0;
723 family_no_major = params->family_id & 0xffffff00;
724 for (x = 0; id_to_type_table[x].id; x++) {
725 if (family == id_to_type_table[x].id)
726 return id_to_type_table[x].type;
727 if (family_no_major == (id_to_type_table[x].id & 0xffffff00))
728 if (family > id_to_type_table[x].id &&
729 last_family < id_to_type_table[x].id) {
730 last_family = id_to_type_table[x].id;
731 last_type = id_to_type_table[x].type;
732 }
733 }
734
735 /* If no match, return the default family */
736 if (last_type == -1)
737 return id_to_type_table[x].type;
738 return last_type;
739}
740
741static void usb_init_ipp(struct brcm_usb_init_params *params)
742{
743 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
744 u32 reg;
745 u32 orig_reg;
746
747 /* Starting with the 7445d0, there are no longer separate 3.0
748 * versions of IOC and IPP.
749 */
750 if (USB_CTRL_MASK_FAMILY(params, USB30_CTL1, USB3_IOC)) {
751 if (params->ioc)
752 USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IOC);
753 if (params->ipp == 1)
754 USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IPP);
755 }
756
757 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
758 orig_reg = reg;
759 if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_CC_DRD_MODE_ENABLE_SEL))
760 /* Never use the strap, it's going away. */
761 reg &= ~(USB_CTRL_MASK_FAMILY(params,
762 SETUP,
763 STRAP_CC_DRD_MODE_ENABLE_SEL));
764 if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_IPP_SEL))
765 /* override ipp strap pin (if it exits) */
766 if (params->ipp != 2)
767 reg &= ~(USB_CTRL_MASK_FAMILY(params, SETUP,
768 STRAP_IPP_SEL));
769
770 /* Override the default OC and PP polarity */
771 reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC));
772 if (params->ioc)
773 reg |= USB_CTRL_MASK(SETUP, IOC);
774 if (params->ipp == 1)
775 reg |= USB_CTRL_MASK(SETUP, IPP);
776 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
777
778 /*
779 * If we're changing IPP, make sure power is off long enough
780 * to turn off any connected devices.
781 */
782 if ((reg ^ orig_reg) & USB_CTRL_MASK(SETUP, IPP))
783 msleep(50);
784}
785
786static void usb_wake_enable(struct brcm_usb_init_params *params,
787 bool enable)
788{
789 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
790
791 if (enable)
792 USB_CTRL_SET(ctrl, USB_PM, RMTWKUP_EN);
793 else
794 USB_CTRL_UNSET(ctrl, USB_PM, RMTWKUP_EN);
795}
796
797static void usb_init_common(struct brcm_usb_init_params *params)
798{
799 u32 reg;
800 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
801
802 /* Clear any pending wake conditions */
803 usb_wake_enable(params, false);
804 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_PM_STATUS));
805 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_PM_STATUS));
806
807 /* Take USB out of power down */
808 if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) {
809 USB_CTRL_UNSET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
810 /* 1 millisecond - for USB clocks to settle down */
811 usleep_range(1000, 2000);
812 }
813
814 if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN)) {
815 USB_CTRL_UNSET_FAMILY(params, USB_PM, USB_PWRDN);
816 /* 1 millisecond - for USB clocks to settle down */
817 usleep_range(1000, 2000);
818 }
819
820 if (params->selected_family != BRCM_FAMILY_74371A0 &&
821 (BRCM_ID(params->family_id) != 0x7364))
822 /*
823 * HW7439-637: 7439a0 and its derivatives do not have large
824 * enough descriptor storage for this.
825 */
826 USB_CTRL_SET_FAMILY(params, SETUP, SS_EHCI64BIT_EN);
827
828 /* Block auto PLL suspend by USB2 PHY (Sasi) */
829 USB_CTRL_SET(ctrl, PLL_CTL, PLL_SUSPEND_EN);
830
831 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
832 if (params->selected_family == BRCM_FAMILY_7364A0)
833 /* Suppress overcurrent indication from USB30 ports for A0 */
834 reg |= USB_CTRL_MASK_FAMILY(params, SETUP, OC3_DISABLE);
835
836 brcmusb_usb_phy_ldo_fix(ctrl);
837 brcmusb_usb2_eye_fix(ctrl);
838
839 /*
840 * Make sure the the second and third memory controller
841 * interfaces are enabled if they exist.
842 */
843 if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN))
844 reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN);
845 if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN))
846 reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN);
847 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
848
849 brcmusb_memc_fix(params);
850
851 if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
852 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
853 reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
854 PORT_MODE);
855 reg |= params->mode;
856 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
857 }
858 if (USB_CTRL_MASK_FAMILY(params, USB_PM, BDC_SOFT_RESETB)) {
859 switch (params->mode) {
860 case USB_CTLR_MODE_HOST:
861 USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
862 break;
863 default:
864 USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
865 USB_CTRL_SET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
866 break;
867 }
868 }
869 if (USB_CTRL_MASK_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE)) {
870 if (params->mode == USB_CTLR_MODE_TYPEC_PD)
871 USB_CTRL_SET_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE);
872 else
873 USB_CTRL_UNSET_FAMILY(params, SETUP,
874 CC_DRD_MODE_ENABLE);
875 }
876}
877
878static void usb_init_eohci(struct brcm_usb_init_params *params)
879{
880 u32 reg;
881 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
882
883 if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
884 USB_CTRL_SET_FAMILY(params, USB_PM, USB20_HC_RESETB);
885
886 if (params->selected_family == BRCM_FAMILY_7366C0)
887 /*
888 * Don't enable this so the memory controller doesn't read
889 * into memory holes. NOTE: This bit is low true on 7366C0.
890 */
891 USB_CTRL_SET(ctrl, EBRIDGE, ESTOP_SCB_REQ);
892
893 /* Setup the endian bits */
894 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, SETUP));
895 reg &= ~USB_CTRL_SETUP_ENDIAN_BITS;
896 reg |= USB_CTRL_MASK_FAMILY(params, SETUP, ENDIAN);
897 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
898
899 if (params->selected_family == BRCM_FAMILY_7271A0)
900 /* Enable LS keep alive fix for certain keyboards */
901 USB_CTRL_SET(ctrl, OBRIDGE, LS_KEEP_ALIVE);
902
903 if (params->family_id == 0x72550000) {
904 /*
905 * Make the burst size 512 bytes to fix a hardware bug
906 * on the 7255a0. See HW7255-24.
907 */
908 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, EBRIDGE));
909 reg &= ~USB_CTRL_MASK(EBRIDGE, EBR_SCB_SIZE);
910 reg |= 0x800;
911 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, EBRIDGE));
912 }
913}
914
915static void usb_init_xhci(struct brcm_usb_init_params *params)
916{
917 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
918
919 USB_CTRL_UNSET(ctrl, USB30_PCTL, PHY3_IDDQ_OVERRIDE);
920 /* 1 millisecond - for USB clocks to settle down */
921 usleep_range(1000, 2000);
922
923 if (BRCM_ID(params->family_id) == 0x7366) {
924 /*
925 * The PHY3_SOFT_RESETB bits default to the wrong state.
926 */
927 USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB);
928 USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB_P1);
929 }
930
931 /*
932 * Kick start USB3 PHY
933 * Make sure it's low to insure a rising edge.
934 */
935 USB_CTRL_UNSET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
936 USB_CTRL_SET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
937
938 brcmusb_usb3_phy_workarounds(params);
939 brcmusb_xhci_soft_reset(params, 0);
940 brcmusb_usb3_otp_fix(params);
941}
942
943static void usb_uninit_common(struct brcm_usb_init_params *params)
944{
945 if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN))
946 USB_CTRL_SET_FAMILY(params, USB_PM, USB_PWRDN);
947
948 if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN))
949 USB_CTRL_SET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
950 if (params->wake_enabled)
951 usb_wake_enable(params, true);
952}
953
954static void usb_uninit_eohci(struct brcm_usb_init_params *params)
955{
956}
957
958static void usb_uninit_xhci(struct brcm_usb_init_params *params)
959{
960 brcmusb_xhci_soft_reset(params, 1);
961 USB_CTRL_SET(params->regs[BRCM_REGS_CTRL], USB30_PCTL,
962 PHY3_IDDQ_OVERRIDE);
963}
964
965static int usb_get_dual_select(struct brcm_usb_init_params *params)
966{
967 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
968 u32 reg = 0;
969
970 pr_debug("%s\n", __func__);
971 if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
972 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
973 reg &= USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
974 PORT_MODE);
975 }
976 return reg;
977}
978
979static void usb_set_dual_select(struct brcm_usb_init_params *params, int mode)
980{
981 void __iomem *ctrl = params->regs[BRCM_REGS_CTRL];
982 u32 reg;
983
984 pr_debug("%s\n", __func__);
985
986 if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
987 reg = brcm_usb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
988 reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
989 PORT_MODE);
990 reg |= mode;
991 brcm_usb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
992 }
993}
994
995static const struct brcm_usb_init_ops bcm7445_ops = {
996 .init_ipp = usb_init_ipp,
997 .init_common = usb_init_common,
998 .init_eohci = usb_init_eohci,
999 .init_xhci = usb_init_xhci,
1000 .uninit_common = usb_uninit_common,
1001 .uninit_eohci = usb_uninit_eohci,
1002 .uninit_xhci = usb_uninit_xhci,
1003 .get_dual_select = usb_get_dual_select,
1004 .set_dual_select = usb_set_dual_select,
1005};
1006
1007void brcm_usb_dvr_init_7445(struct brcm_usb_init_params *params)
1008{
1009 int fam;
1010
1011 pr_debug("%s\n", __func__);
1012
1013 fam = get_family_type(params);
1014 params->selected_family = fam;
1015 params->usb_reg_bits_map =
1016 &usb_reg_bits_map_table[fam][0];
1017 params->family_name = family_names[fam];
1018 params->ops = &bcm7445_ops;
1019}