phy-brcm-usb-init.c 33 KB

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  1. /*
  2. * phy-brcm-usb-init.c - Broadcom USB Phy chip specific init functions
  3. *
  4. * Copyright (C) 2014-2017 Broadcom
  5. *
  6. * This software is licensed under the terms of the GNU General Public
  7. * License version 2, as published by the Free Software Foundation, and
  8. * may be copied, distributed, and modified under those terms.
  9. *
  10. * This program is distributed in the hope that it will be useful,
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13. * GNU General Public License for more details.
  14. */
  15. /*
  16. * This module contains USB PHY initialization for power up and S3 resume
  17. */
  18. #include <linux/delay.h>
  19. #include <linux/io.h>
  20. #include <linux/soc/brcmstb/brcmstb.h>
  21. #include "phy-brcm-usb-init.h"
  22. #define PHY_PORTS 2
  23. #define PHY_PORT_SELECT_0 0
  24. #define PHY_PORT_SELECT_1 0x1000
  25. /* Register definitions for the USB CTRL block */
  26. #define USB_CTRL_SETUP 0x00
  27. #define USB_CTRL_SETUP_IOC_MASK 0x00000010
  28. #define USB_CTRL_SETUP_IPP_MASK 0x00000020
  29. #define USB_CTRL_SETUP_BABO_MASK 0x00000001
  30. #define USB_CTRL_SETUP_FNHW_MASK 0x00000002
  31. #define USB_CTRL_SETUP_FNBO_MASK 0x00000004
  32. #define USB_CTRL_SETUP_WABO_MASK 0x00000008
  33. #define USB_CTRL_SETUP_SCB_CLIENT_SWAP_MASK 0x00002000 /* option */
  34. #define USB_CTRL_SETUP_SCB1_EN_MASK 0x00004000 /* option */
  35. #define USB_CTRL_SETUP_SCB2_EN_MASK 0x00008000 /* option */
  36. #define USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK 0X00020000 /* option */
  37. #define USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK 0x00010000 /* option */
  38. #define USB_CTRL_SETUP_STRAP_IPP_SEL_MASK 0x02000000 /* option */
  39. #define USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK 0x04000000 /* option */
  40. #define USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK 0x08000000 /* opt */
  41. #define USB_CTRL_SETUP_OC3_DISABLE_MASK 0xc0000000 /* option */
  42. #define USB_CTRL_PLL_CTL 0x04
  43. #define USB_CTRL_PLL_CTL_PLL_SUSPEND_EN_MASK 0x08000000
  44. #define USB_CTRL_PLL_CTL_PLL_RESETB_MASK 0x40000000
  45. #define USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK 0x80000000 /* option */
  46. #define USB_CTRL_EBRIDGE 0x0c
  47. #define USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK 0x00020000 /* option */
  48. #define USB_CTRL_OBRIDGE 0x10
  49. #define USB_CTRL_OBRIDGE_LS_KEEP_ALIVE_MASK 0x08000000
  50. #define USB_CTRL_MDIO 0x14
  51. #define USB_CTRL_MDIO2 0x18
  52. #define USB_CTRL_UTMI_CTL_1 0x2c
  53. #define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_MASK 0x00000800
  54. #define USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_P1_MASK 0x08000000
  55. #define USB_CTRL_USB_PM 0x34
  56. #define USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK 0x00800000 /* option */
  57. #define USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK 0x00400000 /* option */
  58. #define USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK 0x40000000 /* option */
  59. #define USB_CTRL_USB_PM_USB_PWRDN_MASK 0x80000000 /* option */
  60. #define USB_CTRL_USB_PM_SOFT_RESET_MASK 0x40000000 /* option */
  61. #define USB_CTRL_USB_PM_USB20_HC_RESETB_MASK 0x30000000 /* option */
  62. #define USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK 0x00300000 /* option */
  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. /* Register definitions for the XHCI EC block */
  76. #define USB_XHCI_EC_IRAADR 0x658
  77. #define USB_XHCI_EC_IRADAT 0x65c
  78. enum brcm_family_type {
  79. BRCM_FAMILY_3390A0,
  80. BRCM_FAMILY_7250B0,
  81. BRCM_FAMILY_7271A0,
  82. BRCM_FAMILY_7364A0,
  83. BRCM_FAMILY_7366C0,
  84. BRCM_FAMILY_74371A0,
  85. BRCM_FAMILY_7439B0,
  86. BRCM_FAMILY_7445D0,
  87. BRCM_FAMILY_7260A0,
  88. BRCM_FAMILY_7278A0,
  89. BRCM_FAMILY_COUNT,
  90. };
  91. #define USB_BRCM_FAMILY(chip) \
  92. [BRCM_FAMILY_##chip] = __stringify(chip)
  93. static const char *family_names[BRCM_FAMILY_COUNT] = {
  94. USB_BRCM_FAMILY(3390A0),
  95. USB_BRCM_FAMILY(7250B0),
  96. USB_BRCM_FAMILY(7271A0),
  97. USB_BRCM_FAMILY(7364A0),
  98. USB_BRCM_FAMILY(7366C0),
  99. USB_BRCM_FAMILY(74371A0),
  100. USB_BRCM_FAMILY(7439B0),
  101. USB_BRCM_FAMILY(7445D0),
  102. USB_BRCM_FAMILY(7260A0),
  103. USB_BRCM_FAMILY(7278A0),
  104. };
  105. enum {
  106. USB_CTRL_SETUP_SCB1_EN_SELECTOR,
  107. USB_CTRL_SETUP_SCB2_EN_SELECTOR,
  108. USB_CTRL_SETUP_SS_EHCI64BIT_EN_SELECTOR,
  109. USB_CTRL_SETUP_STRAP_IPP_SEL_SELECTOR,
  110. USB_CTRL_SETUP_OC3_DISABLE_SELECTOR,
  111. USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_SELECTOR,
  112. USB_CTRL_USB_PM_BDC_SOFT_RESETB_SELECTOR,
  113. USB_CTRL_USB_PM_XHC_SOFT_RESETB_SELECTOR,
  114. USB_CTRL_USB_PM_USB_PWRDN_SELECTOR,
  115. USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_SELECTOR,
  116. USB_CTRL_USB30_CTL1_USB3_IOC_SELECTOR,
  117. USB_CTRL_USB30_CTL1_USB3_IPP_SELECTOR,
  118. USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_SELECTOR,
  119. USB_CTRL_USB_PM_SOFT_RESET_SELECTOR,
  120. USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_SELECTOR,
  121. USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_SELECTOR,
  122. USB_CTRL_USB_PM_USB20_HC_RESETB_SELECTOR,
  123. USB_CTRL_SETUP_ENDIAN_SELECTOR,
  124. USB_CTRL_SELECTOR_COUNT,
  125. };
  126. #define USB_CTRL_REG(base, reg) ((void *)base + USB_CTRL_##reg)
  127. #define USB_XHCI_EC_REG(base, reg) ((void *)base + USB_XHCI_EC_##reg)
  128. #define USB_CTRL_MASK(reg, field) \
  129. USB_CTRL_##reg##_##field##_MASK
  130. #define USB_CTRL_MASK_FAMILY(params, reg, field) \
  131. (params->usb_reg_bits_map[USB_CTRL_##reg##_##field##_SELECTOR])
  132. #define USB_CTRL_SET_FAMILY(params, reg, field) \
  133. usb_ctrl_set_family(params, USB_CTRL_##reg, \
  134. USB_CTRL_##reg##_##field##_SELECTOR)
  135. #define USB_CTRL_UNSET_FAMILY(params, reg, field) \
  136. usb_ctrl_unset_family(params, USB_CTRL_##reg, \
  137. USB_CTRL_##reg##_##field##_SELECTOR)
  138. #define USB_CTRL_SET(base, reg, field) \
  139. usb_ctrl_set(USB_CTRL_REG(base, reg), \
  140. USB_CTRL_##reg##_##field##_MASK)
  141. #define USB_CTRL_UNSET(base, reg, field) \
  142. usb_ctrl_unset(USB_CTRL_REG(base, reg), \
  143. USB_CTRL_##reg##_##field##_MASK)
  144. #define MDIO_USB2 0
  145. #define MDIO_USB3 BIT(31)
  146. #define USB_CTRL_SETUP_ENDIAN_BITS ( \
  147. USB_CTRL_MASK(SETUP, BABO) | \
  148. USB_CTRL_MASK(SETUP, FNHW) | \
  149. USB_CTRL_MASK(SETUP, FNBO) | \
  150. USB_CTRL_MASK(SETUP, WABO))
  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. struct id_to_type {
  162. u32 id;
  163. int type;
  164. };
  165. static const struct id_to_type id_to_type_table[] = {
  166. { 0x33900000, BRCM_FAMILY_3390A0 },
  167. { 0x72500010, BRCM_FAMILY_7250B0 },
  168. { 0x72600000, BRCM_FAMILY_7260A0 },
  169. { 0x72680000, BRCM_FAMILY_7271A0 },
  170. { 0x72710000, BRCM_FAMILY_7271A0 },
  171. { 0x73640000, BRCM_FAMILY_7364A0 },
  172. { 0x73660020, BRCM_FAMILY_7366C0 },
  173. { 0x07437100, BRCM_FAMILY_74371A0 },
  174. { 0x74390010, BRCM_FAMILY_7439B0 },
  175. { 0x74450030, BRCM_FAMILY_7445D0 },
  176. { 0x72780000, BRCM_FAMILY_7278A0 },
  177. { 0, BRCM_FAMILY_7271A0 }, /* default */
  178. };
  179. static const u32
  180. usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
  181. /* 3390B0 */
  182. [BRCM_FAMILY_3390A0] = {
  183. USB_CTRL_SETUP_SCB1_EN_MASK,
  184. USB_CTRL_SETUP_SCB2_EN_MASK,
  185. USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
  186. USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
  187. USB_CTRL_SETUP_OC3_DISABLE_MASK,
  188. 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
  189. 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
  190. USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
  191. USB_CTRL_USB_PM_USB_PWRDN_MASK,
  192. 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
  193. 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
  194. 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
  195. USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
  196. 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
  197. 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
  198. 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
  199. USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
  200. ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
  201. },
  202. /* 7250b0 */
  203. [BRCM_FAMILY_7250B0] = {
  204. USB_CTRL_SETUP_SCB1_EN_MASK,
  205. USB_CTRL_SETUP_SCB2_EN_MASK,
  206. USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
  207. 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
  208. USB_CTRL_SETUP_OC3_DISABLE_MASK,
  209. USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
  210. 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
  211. USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
  212. 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
  213. 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
  214. 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
  215. 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
  216. 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
  217. 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
  218. 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
  219. 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
  220. USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
  221. ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
  222. },
  223. /* 7271a0 */
  224. [BRCM_FAMILY_7271A0] = {
  225. 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
  226. 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
  227. USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
  228. USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
  229. USB_CTRL_SETUP_OC3_DISABLE_MASK,
  230. 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
  231. USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
  232. USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
  233. USB_CTRL_USB_PM_USB_PWRDN_MASK,
  234. 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
  235. 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
  236. 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
  237. USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
  238. USB_CTRL_USB_PM_SOFT_RESET_MASK,
  239. USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
  240. USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
  241. USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
  242. ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
  243. },
  244. /* 7364a0 */
  245. [BRCM_FAMILY_7364A0] = {
  246. USB_CTRL_SETUP_SCB1_EN_MASK,
  247. USB_CTRL_SETUP_SCB2_EN_MASK,
  248. USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
  249. 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
  250. USB_CTRL_SETUP_OC3_DISABLE_MASK,
  251. USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
  252. 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
  253. USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
  254. 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
  255. 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
  256. 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
  257. 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
  258. 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
  259. 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
  260. 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
  261. 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
  262. USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
  263. ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
  264. },
  265. /* 7366c0 */
  266. [BRCM_FAMILY_7366C0] = {
  267. USB_CTRL_SETUP_SCB1_EN_MASK,
  268. USB_CTRL_SETUP_SCB2_EN_MASK,
  269. USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
  270. 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
  271. USB_CTRL_SETUP_OC3_DISABLE_MASK,
  272. 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
  273. 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
  274. USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
  275. USB_CTRL_USB_PM_USB_PWRDN_MASK,
  276. 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
  277. 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
  278. 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
  279. 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
  280. 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
  281. 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
  282. 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
  283. USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
  284. ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
  285. },
  286. /* 74371A0 */
  287. [BRCM_FAMILY_74371A0] = {
  288. USB_CTRL_SETUP_SCB1_EN_MASK,
  289. USB_CTRL_SETUP_SCB2_EN_MASK,
  290. USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
  291. 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
  292. 0, /* 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. 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
  296. 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
  297. USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
  298. USB_CTRL_USB30_CTL1_USB3_IOC_MASK,
  299. 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. 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
  305. ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
  306. },
  307. /* 7439B0 */
  308. [BRCM_FAMILY_7439B0] = {
  309. USB_CTRL_SETUP_SCB1_EN_MASK,
  310. USB_CTRL_SETUP_SCB2_EN_MASK,
  311. USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
  312. USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
  313. USB_CTRL_SETUP_OC3_DISABLE_MASK,
  314. 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
  315. USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
  316. USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
  317. USB_CTRL_USB_PM_USB_PWRDN_MASK,
  318. 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
  319. 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
  320. 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
  321. USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
  322. 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
  323. 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
  324. 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
  325. USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
  326. ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
  327. },
  328. /* 7445d0 */
  329. [BRCM_FAMILY_7445D0] = {
  330. USB_CTRL_SETUP_SCB1_EN_MASK,
  331. USB_CTRL_SETUP_SCB2_EN_MASK,
  332. USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
  333. 0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
  334. USB_CTRL_SETUP_OC3_DISABLE_MASK,
  335. USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
  336. 0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
  337. 0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
  338. 0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
  339. USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
  340. 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
  341. 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
  342. 0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
  343. 0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
  344. 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
  345. 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
  346. USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
  347. ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
  348. },
  349. /* 7260a0 */
  350. [BRCM_FAMILY_7260A0] = {
  351. 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
  352. 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
  353. USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
  354. USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
  355. USB_CTRL_SETUP_OC3_DISABLE_MASK,
  356. 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
  357. USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
  358. USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
  359. USB_CTRL_USB_PM_USB_PWRDN_MASK,
  360. 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
  361. 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
  362. 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
  363. USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
  364. USB_CTRL_USB_PM_SOFT_RESET_MASK,
  365. USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
  366. USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
  367. USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
  368. ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
  369. },
  370. /* 7278a0 */
  371. [BRCM_FAMILY_7278A0] = {
  372. 0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
  373. 0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
  374. 0, /*USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */
  375. USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
  376. USB_CTRL_SETUP_OC3_DISABLE_MASK,
  377. 0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
  378. USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
  379. USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
  380. USB_CTRL_USB_PM_USB_PWRDN_MASK,
  381. 0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
  382. 0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
  383. 0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
  384. USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
  385. USB_CTRL_USB_PM_SOFT_RESET_MASK,
  386. 0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
  387. 0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
  388. 0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
  389. 0, /* USB_CTRL_SETUP ENDIAN bits */
  390. },
  391. };
  392. static inline u32 brcmusb_readl(void __iomem *addr)
  393. {
  394. return readl(addr);
  395. }
  396. static inline void brcmusb_writel(u32 val, void __iomem *addr)
  397. {
  398. writel(val, addr);
  399. }
  400. static inline
  401. void usb_ctrl_unset_family(struct brcm_usb_init_params *params,
  402. u32 reg_offset, u32 field)
  403. {
  404. u32 mask;
  405. void *reg;
  406. mask = params->usb_reg_bits_map[field];
  407. reg = params->ctrl_regs + reg_offset;
  408. brcmusb_writel(brcmusb_readl(reg) & ~mask, reg);
  409. };
  410. static inline
  411. void usb_ctrl_set_family(struct brcm_usb_init_params *params,
  412. u32 reg_offset, u32 field)
  413. {
  414. u32 mask;
  415. void *reg;
  416. mask = params->usb_reg_bits_map[field];
  417. reg = params->ctrl_regs + reg_offset;
  418. brcmusb_writel(brcmusb_readl(reg) | mask, reg);
  419. };
  420. static inline void usb_ctrl_set(void __iomem *reg, u32 field)
  421. {
  422. u32 value;
  423. value = brcmusb_readl(reg);
  424. brcmusb_writel(value | field, reg);
  425. }
  426. static inline void usb_ctrl_unset(void __iomem *reg, u32 field)
  427. {
  428. u32 value;
  429. value = brcmusb_readl(reg);
  430. brcmusb_writel(value & ~field, reg);
  431. }
  432. static u32 brcmusb_usb_mdio_read(void __iomem *ctrl_base, u32 reg, int mode)
  433. {
  434. u32 data;
  435. data = (reg << 16) | mode;
  436. brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
  437. data |= (1 << 24);
  438. brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
  439. data &= ~(1 << 24);
  440. /* wait for the 60MHz parallel to serial shifter */
  441. usleep_range(10, 20);
  442. brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
  443. /* wait for the 60MHz parallel to serial shifter */
  444. usleep_range(10, 20);
  445. return brcmusb_readl(USB_CTRL_REG(ctrl_base, MDIO2)) & 0xffff;
  446. }
  447. static void brcmusb_usb_mdio_write(void __iomem *ctrl_base, u32 reg,
  448. u32 val, int mode)
  449. {
  450. u32 data;
  451. data = (reg << 16) | val | mode;
  452. brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
  453. data |= (1 << 25);
  454. brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
  455. data &= ~(1 << 25);
  456. /* wait for the 60MHz parallel to serial shifter */
  457. usleep_range(10, 20);
  458. brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
  459. /* wait for the 60MHz parallel to serial shifter */
  460. usleep_range(10, 20);
  461. }
  462. static void brcmusb_usb_phy_ldo_fix(void __iomem *ctrl_base)
  463. {
  464. /* first disable FSM but also leave it that way */
  465. /* to allow normal suspend/resume */
  466. USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN);
  467. USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN_P1);
  468. /* reset USB 2.0 PLL */
  469. USB_CTRL_UNSET(ctrl_base, PLL_CTL, PLL_RESETB);
  470. /* PLL reset period */
  471. udelay(1);
  472. USB_CTRL_SET(ctrl_base, PLL_CTL, PLL_RESETB);
  473. /* Give PLL enough time to lock */
  474. usleep_range(1000, 2000);
  475. }
  476. static void brcmusb_usb2_eye_fix(void __iomem *ctrl_base)
  477. {
  478. /* Increase USB 2.0 TX level to meet spec requirement */
  479. brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x80a0, MDIO_USB2);
  480. brcmusb_usb_mdio_write(ctrl_base, 0x0a, 0xc6a0, MDIO_USB2);
  481. }
  482. static void brcmusb_usb3_pll_fix(void __iomem *ctrl_base)
  483. {
  484. /* Set correct window for PLL lock detect */
  485. brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
  486. brcmusb_usb_mdio_write(ctrl_base, 0x07, 0x1503, MDIO_USB3);
  487. }
  488. static void brcmusb_usb3_enable_pipe_reset(void __iomem *ctrl_base)
  489. {
  490. u32 val;
  491. /* Re-enable USB 3.0 pipe reset */
  492. brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
  493. val = brcmusb_usb_mdio_read(ctrl_base, 0x0f, MDIO_USB3) | 0x200;
  494. brcmusb_usb_mdio_write(ctrl_base, 0x0f, val, MDIO_USB3);
  495. }
  496. static void brcmusb_usb3_enable_sigdet(void __iomem *ctrl_base)
  497. {
  498. u32 val, ofs;
  499. int ii;
  500. ofs = 0;
  501. for (ii = 0; ii < PHY_PORTS; ++ii) {
  502. /* Set correct default for sigdet */
  503. brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8080 + ofs),
  504. MDIO_USB3);
  505. val = brcmusb_usb_mdio_read(ctrl_base, 0x05, MDIO_USB3);
  506. val = (val & ~0x800f) | 0x800d;
  507. brcmusb_usb_mdio_write(ctrl_base, 0x05, val, MDIO_USB3);
  508. ofs = PHY_PORT_SELECT_1;
  509. }
  510. }
  511. static void brcmusb_usb3_enable_skip_align(void __iomem *ctrl_base)
  512. {
  513. u32 val, ofs;
  514. int ii;
  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. static void brcmusb_usb3_unfreeze_aeq(void __iomem *ctrl_base)
  526. {
  527. u32 val, ofs;
  528. int ii;
  529. ofs = 0;
  530. for (ii = 0; ii < PHY_PORTS; ++ii) {
  531. /* Let EQ freeze after TSEQ */
  532. brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x80e0 + ofs),
  533. MDIO_USB3);
  534. val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3);
  535. val &= ~0x0008;
  536. brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
  537. ofs = PHY_PORT_SELECT_1;
  538. }
  539. }
  540. static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params)
  541. {
  542. u32 ofs;
  543. int ii;
  544. void __iomem *ctrl_base = params->ctrl_regs;
  545. /*
  546. * On newer B53 based SoC's, the reference clock for the
  547. * 3.0 PLL has been changed from 50MHz to 54MHz so the
  548. * PLL needs to be reprogrammed.
  549. * See SWLINUX-4006.
  550. *
  551. * On the 7364C0, the reference clock for the
  552. * 3.0 PLL has been changed from 50MHz to 54MHz to
  553. * work around a MOCA issue.
  554. * See SWLINUX-4169.
  555. */
  556. switch (params->selected_family) {
  557. case BRCM_FAMILY_3390A0:
  558. case BRCM_FAMILY_7250B0:
  559. case BRCM_FAMILY_7366C0:
  560. case BRCM_FAMILY_74371A0:
  561. case BRCM_FAMILY_7439B0:
  562. case BRCM_FAMILY_7445D0:
  563. case BRCM_FAMILY_7260A0:
  564. return;
  565. case BRCM_FAMILY_7364A0:
  566. if (BRCM_REV(params->family_id) < 0x20)
  567. return;
  568. break;
  569. }
  570. /* set USB 3.0 PLL to accept 54Mhz reference clock */
  571. USB_CTRL_UNSET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
  572. brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
  573. brcmusb_usb_mdio_write(ctrl_base, 0x10, 0x5784, MDIO_USB3);
  574. brcmusb_usb_mdio_write(ctrl_base, 0x11, 0x01d0, MDIO_USB3);
  575. brcmusb_usb_mdio_write(ctrl_base, 0x12, 0x1DE8, MDIO_USB3);
  576. brcmusb_usb_mdio_write(ctrl_base, 0x13, 0xAA80, MDIO_USB3);
  577. brcmusb_usb_mdio_write(ctrl_base, 0x14, 0x8826, MDIO_USB3);
  578. brcmusb_usb_mdio_write(ctrl_base, 0x15, 0x0044, MDIO_USB3);
  579. brcmusb_usb_mdio_write(ctrl_base, 0x16, 0x8000, MDIO_USB3);
  580. brcmusb_usb_mdio_write(ctrl_base, 0x17, 0x0851, MDIO_USB3);
  581. brcmusb_usb_mdio_write(ctrl_base, 0x18, 0x0000, MDIO_USB3);
  582. /* both ports */
  583. ofs = 0;
  584. for (ii = 0; ii < PHY_PORTS; ++ii) {
  585. brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8040 + ofs),
  586. MDIO_USB3);
  587. brcmusb_usb_mdio_write(ctrl_base, 0x03, 0x0090, MDIO_USB3);
  588. brcmusb_usb_mdio_write(ctrl_base, 0x04, 0x0134, MDIO_USB3);
  589. brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8020 + ofs),
  590. MDIO_USB3);
  591. brcmusb_usb_mdio_write(ctrl_base, 0x01, 0x00e2, MDIO_USB3);
  592. ofs = PHY_PORT_SELECT_1;
  593. }
  594. /* restart PLL sequence */
  595. USB_CTRL_SET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
  596. /* Give PLL enough time to lock */
  597. usleep_range(1000, 2000);
  598. }
  599. static void brcmusb_usb3_ssc_enable(void __iomem *ctrl_base)
  600. {
  601. u32 val;
  602. /* Enable USB 3.0 TX spread spectrum */
  603. brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8040, MDIO_USB3);
  604. val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
  605. brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
  606. /* Currently, USB 3.0 SSC is enabled via port 0 MDIO registers,
  607. * which should have been adequate. However, due to a bug in the
  608. * USB 3.0 PHY, it must be enabled via both ports (HWUSB3DVT-26).
  609. */
  610. brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x9040, MDIO_USB3);
  611. val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
  612. brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
  613. }
  614. static void brcmusb_usb3_phy_workarounds(struct brcm_usb_init_params *params)
  615. {
  616. void __iomem *ctrl_base = params->ctrl_regs;
  617. brcmusb_usb3_pll_fix(ctrl_base);
  618. brcmusb_usb3_pll_54mhz(params);
  619. brcmusb_usb3_ssc_enable(ctrl_base);
  620. brcmusb_usb3_enable_pipe_reset(ctrl_base);
  621. brcmusb_usb3_enable_sigdet(ctrl_base);
  622. brcmusb_usb3_enable_skip_align(ctrl_base);
  623. brcmusb_usb3_unfreeze_aeq(ctrl_base);
  624. }
  625. static void brcmusb_memc_fix(struct brcm_usb_init_params *params)
  626. {
  627. u32 prid;
  628. if (params->selected_family != BRCM_FAMILY_7445D0)
  629. return;
  630. /*
  631. * This is a workaround for HW7445-1869 where a DMA write ends up
  632. * doing a read pre-fetch after the end of the DMA buffer. This
  633. * causes a problem when the DMA buffer is at the end of physical
  634. * memory, causing the pre-fetch read to access non-existent memory,
  635. * and the chip bondout has MEMC2 disabled. When the pre-fetch read
  636. * tries to use the disabled MEMC2, it hangs the bus. The workaround
  637. * is to disable MEMC2 access in the usb controller which avoids
  638. * the hang.
  639. */
  640. prid = params->product_id & 0xfffff000;
  641. switch (prid) {
  642. case 0x72520000:
  643. case 0x74480000:
  644. case 0x74490000:
  645. case 0x07252000:
  646. case 0x07448000:
  647. case 0x07449000:
  648. USB_CTRL_UNSET_FAMILY(params, SETUP, SCB2_EN);
  649. }
  650. }
  651. static void brcmusb_usb3_otp_fix(struct brcm_usb_init_params *params)
  652. {
  653. void __iomem *xhci_ec_base = params->xhci_ec_regs;
  654. u32 val;
  655. if (params->family_id != 0x74371000 || xhci_ec_base == 0)
  656. return;
  657. brcmusb_writel(0xa20c, USB_XHCI_EC_REG(xhci_ec_base, IRAADR));
  658. val = brcmusb_readl(USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
  659. /* set cfg_pick_ss_lock */
  660. val |= (1 << 27);
  661. brcmusb_writel(val, USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
  662. /* Reset USB 3.0 PHY for workaround to take effect */
  663. USB_CTRL_UNSET(params->ctrl_regs, USB30_CTL1, PHY3_RESETB);
  664. USB_CTRL_SET(params->ctrl_regs, USB30_CTL1, PHY3_RESETB);
  665. }
  666. static void brcmusb_xhci_soft_reset(struct brcm_usb_init_params *params,
  667. int on_off)
  668. {
  669. /* Assert reset */
  670. if (on_off) {
  671. if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
  672. USB_CTRL_UNSET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
  673. else
  674. USB_CTRL_UNSET_FAMILY(params,
  675. USB30_CTL1, XHC_SOFT_RESETB);
  676. } else { /* De-assert reset */
  677. if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
  678. USB_CTRL_SET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
  679. else
  680. USB_CTRL_SET_FAMILY(params, USB30_CTL1,
  681. XHC_SOFT_RESETB);
  682. }
  683. }
  684. /*
  685. * Return the best map table family. The order is:
  686. * - exact match of chip and major rev
  687. * - exact match of chip and closest older major rev
  688. * - default chip/rev.
  689. * NOTE: The minor rev is always ignored.
  690. */
  691. static enum brcm_family_type brcmusb_get_family_type(
  692. struct brcm_usb_init_params *params)
  693. {
  694. int last_type = -1;
  695. u32 last_family = 0;
  696. u32 family_no_major;
  697. unsigned int x;
  698. u32 family;
  699. family = params->family_id & 0xfffffff0;
  700. family_no_major = params->family_id & 0xffffff00;
  701. for (x = 0; id_to_type_table[x].id; x++) {
  702. if (family == id_to_type_table[x].id)
  703. return id_to_type_table[x].type;
  704. if (family_no_major == (id_to_type_table[x].id & 0xffffff00))
  705. if (family > id_to_type_table[x].id &&
  706. last_family < id_to_type_table[x].id) {
  707. last_family = id_to_type_table[x].id;
  708. last_type = id_to_type_table[x].type;
  709. }
  710. }
  711. /* If no match, return the default family */
  712. if (last_type == -1)
  713. return id_to_type_table[x].type;
  714. return last_type;
  715. }
  716. void brcm_usb_init_ipp(struct brcm_usb_init_params *params)
  717. {
  718. void __iomem *ctrl = params->ctrl_regs;
  719. u32 reg;
  720. u32 orig_reg;
  721. /* Starting with the 7445d0, there are no longer separate 3.0
  722. * versions of IOC and IPP.
  723. */
  724. if (USB_CTRL_MASK_FAMILY(params, USB30_CTL1, USB3_IOC)) {
  725. if (params->ioc)
  726. USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IOC);
  727. if (params->ipp == 1)
  728. USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IPP);
  729. }
  730. reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
  731. orig_reg = reg;
  732. if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_CC_DRD_MODE_ENABLE_SEL))
  733. /* Never use the strap, it's going away. */
  734. reg &= ~(USB_CTRL_MASK_FAMILY(params,
  735. SETUP,
  736. STRAP_CC_DRD_MODE_ENABLE_SEL));
  737. if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_IPP_SEL))
  738. if (params->ipp != 2)
  739. /* override ipp strap pin (if it exits) */
  740. reg &= ~(USB_CTRL_MASK_FAMILY(params, SETUP,
  741. STRAP_IPP_SEL));
  742. /* Override the default OC and PP polarity */
  743. reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC));
  744. if (params->ioc)
  745. reg |= USB_CTRL_MASK(SETUP, IOC);
  746. if (params->ipp == 1 && ((reg & USB_CTRL_MASK(SETUP, IPP)) == 0))
  747. reg |= USB_CTRL_MASK(SETUP, IPP);
  748. brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
  749. /*
  750. * If we're changing IPP, make sure power is off long enough
  751. * to turn off any connected devices.
  752. */
  753. if (reg != orig_reg)
  754. msleep(50);
  755. }
  756. int brcm_usb_init_get_dual_select(struct brcm_usb_init_params *params)
  757. {
  758. void __iomem *ctrl = params->ctrl_regs;
  759. u32 reg = 0;
  760. if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
  761. reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
  762. reg &= USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
  763. PORT_MODE);
  764. }
  765. return reg;
  766. }
  767. void brcm_usb_init_set_dual_select(struct brcm_usb_init_params *params,
  768. int mode)
  769. {
  770. void __iomem *ctrl = params->ctrl_regs;
  771. u32 reg;
  772. if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
  773. reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
  774. reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
  775. PORT_MODE);
  776. reg |= mode;
  777. brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
  778. }
  779. }
  780. void brcm_usb_init_common(struct brcm_usb_init_params *params)
  781. {
  782. u32 reg;
  783. void __iomem *ctrl = params->ctrl_regs;
  784. /* Take USB out of power down */
  785. if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) {
  786. USB_CTRL_UNSET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
  787. /* 1 millisecond - for USB clocks to settle down */
  788. usleep_range(1000, 2000);
  789. }
  790. if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN)) {
  791. USB_CTRL_UNSET_FAMILY(params, USB_PM, USB_PWRDN);
  792. /* 1 millisecond - for USB clocks to settle down */
  793. usleep_range(1000, 2000);
  794. }
  795. if (params->selected_family != BRCM_FAMILY_74371A0 &&
  796. (BRCM_ID(params->family_id) != 0x7364))
  797. /*
  798. * HW7439-637: 7439a0 and its derivatives do not have large
  799. * enough descriptor storage for this.
  800. */
  801. USB_CTRL_SET_FAMILY(params, SETUP, SS_EHCI64BIT_EN);
  802. /* Block auto PLL suspend by USB2 PHY (Sasi) */
  803. USB_CTRL_SET(ctrl, PLL_CTL, PLL_SUSPEND_EN);
  804. reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
  805. if (params->selected_family == BRCM_FAMILY_7364A0)
  806. /* Suppress overcurrent indication from USB30 ports for A0 */
  807. reg |= USB_CTRL_MASK_FAMILY(params, SETUP, OC3_DISABLE);
  808. brcmusb_usb_phy_ldo_fix(ctrl);
  809. brcmusb_usb2_eye_fix(ctrl);
  810. /*
  811. * Make sure the the second and third memory controller
  812. * interfaces are enabled if they exist.
  813. */
  814. if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN))
  815. reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN);
  816. if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN))
  817. reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN);
  818. brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
  819. brcmusb_memc_fix(params);
  820. if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
  821. reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
  822. reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
  823. PORT_MODE);
  824. reg |= params->mode;
  825. brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
  826. }
  827. if (USB_CTRL_MASK_FAMILY(params, USB_PM, BDC_SOFT_RESETB)) {
  828. switch (params->mode) {
  829. case USB_CTLR_MODE_HOST:
  830. USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
  831. break;
  832. default:
  833. USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
  834. USB_CTRL_SET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
  835. break;
  836. }
  837. }
  838. if (USB_CTRL_MASK_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE)) {
  839. if (params->mode == USB_CTLR_MODE_TYPEC_PD)
  840. USB_CTRL_SET_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE);
  841. else
  842. USB_CTRL_UNSET_FAMILY(params, SETUP,
  843. CC_DRD_MODE_ENABLE);
  844. }
  845. }
  846. void brcm_usb_init_eohci(struct brcm_usb_init_params *params)
  847. {
  848. u32 reg;
  849. void __iomem *ctrl = params->ctrl_regs;
  850. if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
  851. USB_CTRL_SET_FAMILY(params, USB_PM, USB20_HC_RESETB);
  852. if (params->selected_family == BRCM_FAMILY_7366C0)
  853. /*
  854. * Don't enable this so the memory controller doesn't read
  855. * into memory holes. NOTE: This bit is low true on 7366C0.
  856. */
  857. USB_CTRL_SET(ctrl, EBRIDGE, ESTOP_SCB_REQ);
  858. /* Setup the endian bits */
  859. reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
  860. reg &= ~USB_CTRL_SETUP_ENDIAN_BITS;
  861. reg |= USB_CTRL_MASK_FAMILY(params, SETUP, ENDIAN);
  862. brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
  863. if (params->selected_family == BRCM_FAMILY_7271A0)
  864. /* Enable LS keep alive fix for certain keyboards */
  865. USB_CTRL_SET(ctrl, OBRIDGE, LS_KEEP_ALIVE);
  866. }
  867. void brcm_usb_init_xhci(struct brcm_usb_init_params *params)
  868. {
  869. void __iomem *ctrl = params->ctrl_regs;
  870. USB_CTRL_UNSET(ctrl, USB30_PCTL, PHY3_IDDQ_OVERRIDE);
  871. /* 1 millisecond - for USB clocks to settle down */
  872. usleep_range(1000, 2000);
  873. if (BRCM_ID(params->family_id) == 0x7366) {
  874. /*
  875. * The PHY3_SOFT_RESETB bits default to the wrong state.
  876. */
  877. USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB);
  878. USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB_P1);
  879. }
  880. /*
  881. * Kick start USB3 PHY
  882. * Make sure it's low to insure a rising edge.
  883. */
  884. USB_CTRL_UNSET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
  885. USB_CTRL_SET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
  886. brcmusb_usb3_phy_workarounds(params);
  887. brcmusb_xhci_soft_reset(params, 0);
  888. brcmusb_usb3_otp_fix(params);
  889. }
  890. void brcm_usb_uninit_common(struct brcm_usb_init_params *params)
  891. {
  892. if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN))
  893. USB_CTRL_SET_FAMILY(params, USB_PM, USB_PWRDN);
  894. if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN))
  895. USB_CTRL_SET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
  896. }
  897. void brcm_usb_uninit_eohci(struct brcm_usb_init_params *params)
  898. {
  899. if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
  900. USB_CTRL_UNSET_FAMILY(params, USB_PM, USB20_HC_RESETB);
  901. }
  902. void brcm_usb_uninit_xhci(struct brcm_usb_init_params *params)
  903. {
  904. brcmusb_xhci_soft_reset(params, 1);
  905. USB_CTRL_SET(params->ctrl_regs, USB30_PCTL, PHY3_IDDQ_OVERRIDE);
  906. }
  907. void brcm_usb_set_family_map(struct brcm_usb_init_params *params)
  908. {
  909. int fam;
  910. fam = brcmusb_get_family_type(params);
  911. params->selected_family = fam;
  912. params->usb_reg_bits_map =
  913. &usb_reg_bits_map_table[fam][0];
  914. params->family_name = family_names[fam];
  915. }