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
85 enum 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
103 static 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
117 enum {
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
171 struct id_to_type {
172 u32 id;
173 int type;
174 };
175
176 static 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
192 static const u32
193 usb_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
447 static inline
usb_ctrl_unset_family(struct brcm_usb_init_params * params,u32 reg_offset,u32 field)448 void 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
457 static inline
usb_ctrl_set_family(struct brcm_usb_init_params * params,u32 reg_offset,u32 field)458 void 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
brcmusb_usb_mdio_read(void __iomem * ctrl_base,u32 reg,int mode)467 static 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
brcmusb_usb_mdio_write(void __iomem * ctrl_base,u32 reg,u32 val,int mode)485 static 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
brcmusb_usb_phy_ldo_fix(void __iomem * ctrl_base)503 static 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
brcmusb_usb2_eye_fix(void __iomem * ctrl_base)519 static 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
brcmusb_usb3_pll_fix(void __iomem * ctrl_base)526 static 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
brcmusb_usb3_enable_pipe_reset(void __iomem * ctrl_base)533 static 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
brcmusb_usb3_enable_sigdet(void __iomem * ctrl_base)543 static 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
brcmusb_usb3_enable_skip_align(void __iomem * ctrl_base)560 static 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
brcmusb_usb3_unfreeze_aeq(void __iomem * ctrl_base)576 static 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
brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params * params)593 static 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
brcmusb_usb3_ssc_enable(void __iomem * ctrl_base)659 static 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
brcmusb_usb3_phy_workarounds(struct brcm_usb_init_params * params)677 static 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
brcmusb_memc_fix(struct brcm_usb_init_params * params)690 static 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
brcmusb_usb3_otp_fix(struct brcm_usb_init_params * params)719 static 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
brcmusb_xhci_soft_reset(struct brcm_usb_init_params * params,int on_off)738 static 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 */
get_family_type(struct brcm_usb_init_params * params)764 static 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
usb_init_ipp(struct brcm_usb_init_params * params)792 static 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
usb_wake_enable(struct brcm_usb_init_params * params,bool enable)837 static 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
usb_init_common(struct brcm_usb_init_params * params)848 static 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
usb_init_eohci(struct brcm_usb_init_params * params)936 static 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
usb_init_xhci(struct brcm_usb_init_params * params)973 static 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
usb_uninit_common(struct brcm_usb_init_params * params)1001 static 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
usb_uninit_eohci(struct brcm_usb_init_params * params)1012 static void usb_uninit_eohci(struct brcm_usb_init_params *params)
1013 {
1014 }
1015
usb_uninit_xhci(struct brcm_usb_init_params * params)1016 static 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
usb_get_dual_select(struct brcm_usb_init_params * params)1023 static 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
usb_set_dual_select(struct brcm_usb_init_params * params)1037 static 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
1053 static 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
brcm_usb_dvr_init_4908(struct brcm_usb_init_params * params)1065 void 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
brcm_usb_dvr_init_7445(struct brcm_usb_init_params * params)1077 void 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 }
1090