marvell.c 43 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614171418141914201421142214231424142514261427142814291430143114321433143414351436143714381439144014411442144314441445144614471448144914501451145214531454145514561457145814591460146114621463146414651466146714681469147014711472147314741475147614771478147914801481148214831484148514861487148814891490149114921493149414951496149714981499150015011502150315041505150615071508150915101511151215131514151515161517151815191520152115221523152415251526152715281529153015311532153315341535153615371538153915401541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628162916301631163216331634163516361637163816391640164116421643164416451646164716481649165016511652165316541655165616571658165916601661166216631664166516661667166816691670167116721673167416751676167716781679168016811682168316841685168616871688168916901691169216931694169516961697169816991700170117021703170417051706170717081709171017111712171317141715171617171718171917201721172217231724172517261727172817291730173117321733173417351736173717381739174017411742174317441745174617471748
  1. /*
  2. * drivers/net/phy/marvell.c
  3. *
  4. * Driver for Marvell PHYs
  5. *
  6. * Author: Andy Fleming
  7. *
  8. * Copyright (c) 2004 Freescale Semiconductor, Inc.
  9. *
  10. * Copyright (c) 2013 Michael Stapelberg <michael@stapelberg.de>
  11. *
  12. * This program is free software; you can redistribute it and/or modify it
  13. * under the terms of the GNU General Public License as published by the
  14. * Free Software Foundation; either version 2 of the License, or (at your
  15. * option) any later version.
  16. *
  17. */
  18. #include <linux/kernel.h>
  19. #include <linux/string.h>
  20. #include <linux/errno.h>
  21. #include <linux/unistd.h>
  22. #include <linux/interrupt.h>
  23. #include <linux/init.h>
  24. #include <linux/delay.h>
  25. #include <linux/netdevice.h>
  26. #include <linux/etherdevice.h>
  27. #include <linux/skbuff.h>
  28. #include <linux/spinlock.h>
  29. #include <linux/mm.h>
  30. #include <linux/module.h>
  31. #include <linux/mii.h>
  32. #include <linux/ethtool.h>
  33. #include <linux/phy.h>
  34. #include <linux/marvell_phy.h>
  35. #include <linux/of.h>
  36. #include <linux/io.h>
  37. #include <asm/irq.h>
  38. #include <linux/uaccess.h>
  39. #define MII_MARVELL_PHY_PAGE 22
  40. #define MII_M1011_IEVENT 0x13
  41. #define MII_M1011_IEVENT_CLEAR 0x0000
  42. #define MII_M1011_IMASK 0x12
  43. #define MII_M1011_IMASK_INIT 0x6400
  44. #define MII_M1011_IMASK_CLEAR 0x0000
  45. #define MII_M1011_PHY_SCR 0x10
  46. #define MII_M1011_PHY_SCR_MDI 0x0000
  47. #define MII_M1011_PHY_SCR_MDI_X 0x0020
  48. #define MII_M1011_PHY_SCR_AUTO_CROSS 0x0060
  49. #define MII_M1145_PHY_EXT_ADDR_PAGE 0x16
  50. #define MII_M1145_PHY_EXT_SR 0x1b
  51. #define MII_M1145_PHY_EXT_CR 0x14
  52. #define MII_M1145_RGMII_RX_DELAY 0x0080
  53. #define MII_M1145_RGMII_TX_DELAY 0x0002
  54. #define MII_M1145_HWCFG_MODE_SGMII_NO_CLK 0x4
  55. #define MII_M1145_HWCFG_MODE_MASK 0xf
  56. #define MII_M1145_HWCFG_FIBER_COPPER_AUTO 0x8000
  57. #define MII_M1145_HWCFG_MODE_SGMII_NO_CLK 0x4
  58. #define MII_M1145_HWCFG_MODE_MASK 0xf
  59. #define MII_M1145_HWCFG_FIBER_COPPER_AUTO 0x8000
  60. #define MII_M1111_PHY_LED_CONTROL 0x18
  61. #define MII_M1111_PHY_LED_DIRECT 0x4100
  62. #define MII_M1111_PHY_LED_COMBINE 0x411c
  63. #define MII_M1111_PHY_EXT_CR 0x14
  64. #define MII_M1111_RX_DELAY 0x80
  65. #define MII_M1111_TX_DELAY 0x2
  66. #define MII_M1111_PHY_EXT_SR 0x1b
  67. #define MII_M1111_HWCFG_MODE_MASK 0xf
  68. #define MII_M1111_HWCFG_MODE_COPPER_RGMII 0xb
  69. #define MII_M1111_HWCFG_MODE_FIBER_RGMII 0x3
  70. #define MII_M1111_HWCFG_MODE_SGMII_NO_CLK 0x4
  71. #define MII_M1111_HWCFG_MODE_COPPER_RTBI 0x9
  72. #define MII_M1111_HWCFG_FIBER_COPPER_AUTO 0x8000
  73. #define MII_M1111_HWCFG_FIBER_COPPER_RES 0x2000
  74. #define MII_M1111_COPPER 0
  75. #define MII_M1111_FIBER 1
  76. #define MII_88E1121_PHY_MSCR_PAGE 2
  77. #define MII_88E1121_PHY_MSCR_REG 21
  78. #define MII_88E1121_PHY_MSCR_RX_DELAY BIT(5)
  79. #define MII_88E1121_PHY_MSCR_TX_DELAY BIT(4)
  80. #define MII_88E1121_PHY_MSCR_DELAY_MASK (~(0x3 << 4))
  81. #define MII_88E1318S_PHY_MSCR1_REG 16
  82. #define MII_88E1318S_PHY_MSCR1_PAD_ODD BIT(6)
  83. /* Copper Specific Interrupt Enable Register */
  84. #define MII_88E1318S_PHY_CSIER 0x12
  85. /* WOL Event Interrupt Enable */
  86. #define MII_88E1318S_PHY_CSIER_WOL_EIE BIT(7)
  87. /* LED Timer Control Register */
  88. #define MII_88E1318S_PHY_LED_PAGE 0x03
  89. #define MII_88E1318S_PHY_LED_TCR 0x12
  90. #define MII_88E1318S_PHY_LED_TCR_FORCE_INT BIT(15)
  91. #define MII_88E1318S_PHY_LED_TCR_INTn_ENABLE BIT(7)
  92. #define MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW BIT(11)
  93. /* Magic Packet MAC address registers */
  94. #define MII_88E1318S_PHY_MAGIC_PACKET_WORD2 0x17
  95. #define MII_88E1318S_PHY_MAGIC_PACKET_WORD1 0x18
  96. #define MII_88E1318S_PHY_MAGIC_PACKET_WORD0 0x19
  97. #define MII_88E1318S_PHY_WOL_PAGE 0x11
  98. #define MII_88E1318S_PHY_WOL_CTRL 0x10
  99. #define MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS BIT(12)
  100. #define MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE BIT(14)
  101. #define MII_88E1121_PHY_LED_CTRL 16
  102. #define MII_88E1121_PHY_LED_PAGE 3
  103. #define MII_88E1121_PHY_LED_DEF 0x0030
  104. #define MII_M1011_PHY_STATUS 0x11
  105. #define MII_M1011_PHY_STATUS_1000 0x8000
  106. #define MII_M1011_PHY_STATUS_100 0x4000
  107. #define MII_M1011_PHY_STATUS_SPD_MASK 0xc000
  108. #define MII_M1011_PHY_STATUS_FULLDUPLEX 0x2000
  109. #define MII_M1011_PHY_STATUS_RESOLVED 0x0800
  110. #define MII_M1011_PHY_STATUS_LINK 0x0400
  111. #define MII_M1116R_CONTROL_REG_MAC 21
  112. #define MII_88E3016_PHY_SPEC_CTRL 0x10
  113. #define MII_88E3016_DISABLE_SCRAMBLER 0x0200
  114. #define MII_88E3016_AUTO_MDIX_CROSSOVER 0x0030
  115. #define MII_88E1510_GEN_CTRL_REG_1 0x14
  116. #define MII_88E1510_GEN_CTRL_REG_1_MODE_MASK 0x7
  117. #define MII_88E1510_GEN_CTRL_REG_1_MODE_SGMII 0x1 /* SGMII to copper */
  118. #define MII_88E1510_GEN_CTRL_REG_1_RESET 0x8000 /* Soft reset */
  119. #define LPA_FIBER_1000HALF 0x40
  120. #define LPA_FIBER_1000FULL 0x20
  121. #define LPA_PAUSE_FIBER 0x180
  122. #define LPA_PAUSE_ASYM_FIBER 0x100
  123. #define ADVERTISE_FIBER_1000HALF 0x40
  124. #define ADVERTISE_FIBER_1000FULL 0x20
  125. #define ADVERTISE_PAUSE_FIBER 0x180
  126. #define ADVERTISE_PAUSE_ASYM_FIBER 0x100
  127. #define REGISTER_LINK_STATUS 0x400
  128. #define NB_FIBER_STATS 1
  129. MODULE_DESCRIPTION("Marvell PHY driver");
  130. MODULE_AUTHOR("Andy Fleming");
  131. MODULE_LICENSE("GPL");
  132. struct marvell_hw_stat {
  133. const char *string;
  134. u8 page;
  135. u8 reg;
  136. u8 bits;
  137. };
  138. static struct marvell_hw_stat marvell_hw_stats[] = {
  139. { "phy_receive_errors_copper", 0, 21, 16},
  140. { "phy_idle_errors", 0, 10, 8 },
  141. { "phy_receive_errors_fiber", 1, 21, 16},
  142. };
  143. struct marvell_priv {
  144. u64 stats[ARRAY_SIZE(marvell_hw_stats)];
  145. };
  146. static int marvell_ack_interrupt(struct phy_device *phydev)
  147. {
  148. int err;
  149. /* Clear the interrupts by reading the reg */
  150. err = phy_read(phydev, MII_M1011_IEVENT);
  151. if (err < 0)
  152. return err;
  153. return 0;
  154. }
  155. static int marvell_config_intr(struct phy_device *phydev)
  156. {
  157. int err;
  158. if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
  159. err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_INIT);
  160. else
  161. err = phy_write(phydev, MII_M1011_IMASK, MII_M1011_IMASK_CLEAR);
  162. return err;
  163. }
  164. static int marvell_set_polarity(struct phy_device *phydev, int polarity)
  165. {
  166. int reg;
  167. int err;
  168. int val;
  169. /* get the current settings */
  170. reg = phy_read(phydev, MII_M1011_PHY_SCR);
  171. if (reg < 0)
  172. return reg;
  173. val = reg;
  174. val &= ~MII_M1011_PHY_SCR_AUTO_CROSS;
  175. switch (polarity) {
  176. case ETH_TP_MDI:
  177. val |= MII_M1011_PHY_SCR_MDI;
  178. break;
  179. case ETH_TP_MDI_X:
  180. val |= MII_M1011_PHY_SCR_MDI_X;
  181. break;
  182. case ETH_TP_MDI_AUTO:
  183. case ETH_TP_MDI_INVALID:
  184. default:
  185. val |= MII_M1011_PHY_SCR_AUTO_CROSS;
  186. break;
  187. }
  188. if (val != reg) {
  189. /* Set the new polarity value in the register */
  190. err = phy_write(phydev, MII_M1011_PHY_SCR, val);
  191. if (err)
  192. return err;
  193. }
  194. return 0;
  195. }
  196. static int marvell_config_aneg(struct phy_device *phydev)
  197. {
  198. int err;
  199. /* The Marvell PHY has an errata which requires
  200. * that certain registers get written in order
  201. * to restart autonegotiation */
  202. err = phy_write(phydev, MII_BMCR, BMCR_RESET);
  203. if (err < 0)
  204. return err;
  205. err = phy_write(phydev, 0x1d, 0x1f);
  206. if (err < 0)
  207. return err;
  208. err = phy_write(phydev, 0x1e, 0x200c);
  209. if (err < 0)
  210. return err;
  211. err = phy_write(phydev, 0x1d, 0x5);
  212. if (err < 0)
  213. return err;
  214. err = phy_write(phydev, 0x1e, 0);
  215. if (err < 0)
  216. return err;
  217. err = phy_write(phydev, 0x1e, 0x100);
  218. if (err < 0)
  219. return err;
  220. err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
  221. if (err < 0)
  222. return err;
  223. err = phy_write(phydev, MII_M1111_PHY_LED_CONTROL,
  224. MII_M1111_PHY_LED_DIRECT);
  225. if (err < 0)
  226. return err;
  227. err = genphy_config_aneg(phydev);
  228. if (err < 0)
  229. return err;
  230. if (phydev->autoneg != AUTONEG_ENABLE) {
  231. int bmcr;
  232. /*
  233. * A write to speed/duplex bits (that is performed by
  234. * genphy_config_aneg() call above) must be followed by
  235. * a software reset. Otherwise, the write has no effect.
  236. */
  237. bmcr = phy_read(phydev, MII_BMCR);
  238. if (bmcr < 0)
  239. return bmcr;
  240. err = phy_write(phydev, MII_BMCR, bmcr | BMCR_RESET);
  241. if (err < 0)
  242. return err;
  243. }
  244. return 0;
  245. }
  246. static int m88e1111_config_aneg(struct phy_device *phydev)
  247. {
  248. int err;
  249. /* The Marvell PHY has an errata which requires
  250. * that certain registers get written in order
  251. * to restart autonegotiation
  252. */
  253. err = phy_write(phydev, MII_BMCR, BMCR_RESET);
  254. err = marvell_set_polarity(phydev, phydev->mdix_ctrl);
  255. if (err < 0)
  256. return err;
  257. err = phy_write(phydev, MII_M1111_PHY_LED_CONTROL,
  258. MII_M1111_PHY_LED_DIRECT);
  259. if (err < 0)
  260. return err;
  261. err = genphy_config_aneg(phydev);
  262. if (err < 0)
  263. return err;
  264. if (phydev->autoneg != AUTONEG_ENABLE) {
  265. int bmcr;
  266. /* A write to speed/duplex bits (that is performed by
  267. * genphy_config_aneg() call above) must be followed by
  268. * a software reset. Otherwise, the write has no effect.
  269. */
  270. bmcr = phy_read(phydev, MII_BMCR);
  271. if (bmcr < 0)
  272. return bmcr;
  273. err = phy_write(phydev, MII_BMCR, bmcr | BMCR_RESET);
  274. if (err < 0)
  275. return err;
  276. }
  277. return 0;
  278. }
  279. #ifdef CONFIG_OF_MDIO
  280. /*
  281. * Set and/or override some configuration registers based on the
  282. * marvell,reg-init property stored in the of_node for the phydev.
  283. *
  284. * marvell,reg-init = <reg-page reg mask value>,...;
  285. *
  286. * There may be one or more sets of <reg-page reg mask value>:
  287. *
  288. * reg-page: which register bank to use.
  289. * reg: the register.
  290. * mask: if non-zero, ANDed with existing register value.
  291. * value: ORed with the masked value and written to the regiser.
  292. *
  293. */
  294. static int marvell_of_reg_init(struct phy_device *phydev)
  295. {
  296. const __be32 *paddr;
  297. int len, i, saved_page, current_page, ret;
  298. if (!phydev->mdio.dev.of_node)
  299. return 0;
  300. paddr = of_get_property(phydev->mdio.dev.of_node,
  301. "marvell,reg-init", &len);
  302. if (!paddr || len < (4 * sizeof(*paddr)))
  303. return 0;
  304. saved_page = phy_read(phydev, MII_MARVELL_PHY_PAGE);
  305. if (saved_page < 0)
  306. return saved_page;
  307. current_page = saved_page;
  308. ret = 0;
  309. len /= sizeof(*paddr);
  310. for (i = 0; i < len - 3; i += 4) {
  311. u16 reg_page = be32_to_cpup(paddr + i);
  312. u16 reg = be32_to_cpup(paddr + i + 1);
  313. u16 mask = be32_to_cpup(paddr + i + 2);
  314. u16 val_bits = be32_to_cpup(paddr + i + 3);
  315. int val;
  316. if (reg_page != current_page) {
  317. current_page = reg_page;
  318. ret = phy_write(phydev, MII_MARVELL_PHY_PAGE, reg_page);
  319. if (ret < 0)
  320. goto err;
  321. }
  322. val = 0;
  323. if (mask) {
  324. val = phy_read(phydev, reg);
  325. if (val < 0) {
  326. ret = val;
  327. goto err;
  328. }
  329. val &= mask;
  330. }
  331. val |= val_bits;
  332. ret = phy_write(phydev, reg, val);
  333. if (ret < 0)
  334. goto err;
  335. }
  336. err:
  337. if (current_page != saved_page) {
  338. i = phy_write(phydev, MII_MARVELL_PHY_PAGE, saved_page);
  339. if (ret == 0)
  340. ret = i;
  341. }
  342. return ret;
  343. }
  344. #else
  345. static int marvell_of_reg_init(struct phy_device *phydev)
  346. {
  347. return 0;
  348. }
  349. #endif /* CONFIG_OF_MDIO */
  350. static int m88e1121_config_aneg(struct phy_device *phydev)
  351. {
  352. int err, oldpage, mscr;
  353. oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
  354. err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
  355. MII_88E1121_PHY_MSCR_PAGE);
  356. if (err < 0)
  357. return err;
  358. if (phy_interface_is_rgmii(phydev)) {
  359. mscr = phy_read(phydev, MII_88E1121_PHY_MSCR_REG) &
  360. MII_88E1121_PHY_MSCR_DELAY_MASK;
  361. if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
  362. mscr |= (MII_88E1121_PHY_MSCR_RX_DELAY |
  363. MII_88E1121_PHY_MSCR_TX_DELAY);
  364. else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
  365. mscr |= MII_88E1121_PHY_MSCR_RX_DELAY;
  366. else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
  367. mscr |= MII_88E1121_PHY_MSCR_TX_DELAY;
  368. err = phy_write(phydev, MII_88E1121_PHY_MSCR_REG, mscr);
  369. if (err < 0)
  370. return err;
  371. }
  372. phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
  373. err = phy_write(phydev, MII_BMCR, BMCR_RESET);
  374. if (err < 0)
  375. return err;
  376. err = phy_write(phydev, MII_M1011_PHY_SCR,
  377. MII_M1011_PHY_SCR_AUTO_CROSS);
  378. if (err < 0)
  379. return err;
  380. return genphy_config_aneg(phydev);
  381. }
  382. static int m88e1318_config_aneg(struct phy_device *phydev)
  383. {
  384. int err, oldpage, mscr;
  385. oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
  386. err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
  387. MII_88E1121_PHY_MSCR_PAGE);
  388. if (err < 0)
  389. return err;
  390. mscr = phy_read(phydev, MII_88E1318S_PHY_MSCR1_REG);
  391. mscr |= MII_88E1318S_PHY_MSCR1_PAD_ODD;
  392. err = phy_write(phydev, MII_88E1318S_PHY_MSCR1_REG, mscr);
  393. if (err < 0)
  394. return err;
  395. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
  396. if (err < 0)
  397. return err;
  398. return m88e1121_config_aneg(phydev);
  399. }
  400. /**
  401. * ethtool_adv_to_fiber_adv_t
  402. * @ethadv: the ethtool advertisement settings
  403. *
  404. * A small helper function that translates ethtool advertisement
  405. * settings to phy autonegotiation advertisements for the
  406. * MII_ADV register for fiber link.
  407. */
  408. static inline u32 ethtool_adv_to_fiber_adv_t(u32 ethadv)
  409. {
  410. u32 result = 0;
  411. if (ethadv & ADVERTISED_1000baseT_Half)
  412. result |= ADVERTISE_FIBER_1000HALF;
  413. if (ethadv & ADVERTISED_1000baseT_Full)
  414. result |= ADVERTISE_FIBER_1000FULL;
  415. if ((ethadv & ADVERTISE_PAUSE_ASYM) && (ethadv & ADVERTISE_PAUSE_CAP))
  416. result |= LPA_PAUSE_ASYM_FIBER;
  417. else if (ethadv & ADVERTISE_PAUSE_CAP)
  418. result |= (ADVERTISE_PAUSE_FIBER
  419. & (~ADVERTISE_PAUSE_ASYM_FIBER));
  420. return result;
  421. }
  422. /**
  423. * marvell_config_aneg_fiber - restart auto-negotiation or write BMCR
  424. * @phydev: target phy_device struct
  425. *
  426. * Description: If auto-negotiation is enabled, we configure the
  427. * advertising, and then restart auto-negotiation. If it is not
  428. * enabled, then we write the BMCR. Adapted for fiber link in
  429. * some Marvell's devices.
  430. */
  431. static int marvell_config_aneg_fiber(struct phy_device *phydev)
  432. {
  433. int changed = 0;
  434. int err;
  435. int adv, oldadv;
  436. u32 advertise;
  437. if (phydev->autoneg != AUTONEG_ENABLE)
  438. return genphy_setup_forced(phydev);
  439. /* Only allow advertising what this PHY supports */
  440. phydev->advertising &= phydev->supported;
  441. advertise = phydev->advertising;
  442. /* Setup fiber advertisement */
  443. adv = phy_read(phydev, MII_ADVERTISE);
  444. if (adv < 0)
  445. return adv;
  446. oldadv = adv;
  447. adv &= ~(ADVERTISE_FIBER_1000HALF | ADVERTISE_FIBER_1000FULL
  448. | LPA_PAUSE_FIBER);
  449. adv |= ethtool_adv_to_fiber_adv_t(advertise);
  450. if (adv != oldadv) {
  451. err = phy_write(phydev, MII_ADVERTISE, adv);
  452. if (err < 0)
  453. return err;
  454. changed = 1;
  455. }
  456. if (changed == 0) {
  457. /* Advertisement hasn't changed, but maybe aneg was never on to
  458. * begin with? Or maybe phy was isolated?
  459. */
  460. int ctl = phy_read(phydev, MII_BMCR);
  461. if (ctl < 0)
  462. return ctl;
  463. if (!(ctl & BMCR_ANENABLE) || (ctl & BMCR_ISOLATE))
  464. changed = 1; /* do restart aneg */
  465. }
  466. /* Only restart aneg if we are advertising something different
  467. * than we were before.
  468. */
  469. if (changed > 0)
  470. changed = genphy_restart_aneg(phydev);
  471. return changed;
  472. }
  473. static int m88e1510_config_aneg(struct phy_device *phydev)
  474. {
  475. int err;
  476. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
  477. if (err < 0)
  478. goto error;
  479. /* Configure the copper link first */
  480. err = m88e1318_config_aneg(phydev);
  481. if (err < 0)
  482. goto error;
  483. /* Then the fiber link */
  484. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_FIBER);
  485. if (err < 0)
  486. goto error;
  487. err = marvell_config_aneg_fiber(phydev);
  488. if (err < 0)
  489. goto error;
  490. return phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
  491. error:
  492. phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
  493. return err;
  494. }
  495. static int marvell_config_init(struct phy_device *phydev)
  496. {
  497. /* Set registers from marvell,reg-init DT property */
  498. return marvell_of_reg_init(phydev);
  499. }
  500. static int m88e1116r_config_init(struct phy_device *phydev)
  501. {
  502. int temp;
  503. int err;
  504. temp = phy_read(phydev, MII_BMCR);
  505. temp |= BMCR_RESET;
  506. err = phy_write(phydev, MII_BMCR, temp);
  507. if (err < 0)
  508. return err;
  509. mdelay(500);
  510. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0);
  511. if (err < 0)
  512. return err;
  513. temp = phy_read(phydev, MII_M1011_PHY_SCR);
  514. temp |= (7 << 12); /* max number of gigabit attempts */
  515. temp |= (1 << 11); /* enable downshift */
  516. temp |= MII_M1011_PHY_SCR_AUTO_CROSS;
  517. err = phy_write(phydev, MII_M1011_PHY_SCR, temp);
  518. if (err < 0)
  519. return err;
  520. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 2);
  521. if (err < 0)
  522. return err;
  523. temp = phy_read(phydev, MII_M1116R_CONTROL_REG_MAC);
  524. temp |= (1 << 5);
  525. temp |= (1 << 4);
  526. err = phy_write(phydev, MII_M1116R_CONTROL_REG_MAC, temp);
  527. if (err < 0)
  528. return err;
  529. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0);
  530. if (err < 0)
  531. return err;
  532. temp = phy_read(phydev, MII_BMCR);
  533. temp |= BMCR_RESET;
  534. err = phy_write(phydev, MII_BMCR, temp);
  535. if (err < 0)
  536. return err;
  537. mdelay(500);
  538. return marvell_config_init(phydev);
  539. }
  540. static int m88e3016_config_init(struct phy_device *phydev)
  541. {
  542. int reg;
  543. /* Enable Scrambler and Auto-Crossover */
  544. reg = phy_read(phydev, MII_88E3016_PHY_SPEC_CTRL);
  545. if (reg < 0)
  546. return reg;
  547. reg &= ~MII_88E3016_DISABLE_SCRAMBLER;
  548. reg |= MII_88E3016_AUTO_MDIX_CROSSOVER;
  549. reg = phy_write(phydev, MII_88E3016_PHY_SPEC_CTRL, reg);
  550. if (reg < 0)
  551. return reg;
  552. return marvell_config_init(phydev);
  553. }
  554. static int m88e1111_config_init(struct phy_device *phydev)
  555. {
  556. int err;
  557. int temp;
  558. if (phy_interface_is_rgmii(phydev)) {
  559. temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
  560. if (temp < 0)
  561. return temp;
  562. if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
  563. temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
  564. } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
  565. temp &= ~MII_M1111_TX_DELAY;
  566. temp |= MII_M1111_RX_DELAY;
  567. } else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
  568. temp &= ~MII_M1111_RX_DELAY;
  569. temp |= MII_M1111_TX_DELAY;
  570. }
  571. err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
  572. if (err < 0)
  573. return err;
  574. temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
  575. if (temp < 0)
  576. return temp;
  577. temp &= ~(MII_M1111_HWCFG_MODE_MASK);
  578. if (temp & MII_M1111_HWCFG_FIBER_COPPER_RES)
  579. temp |= MII_M1111_HWCFG_MODE_FIBER_RGMII;
  580. else
  581. temp |= MII_M1111_HWCFG_MODE_COPPER_RGMII;
  582. err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
  583. if (err < 0)
  584. return err;
  585. }
  586. if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
  587. temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
  588. if (temp < 0)
  589. return temp;
  590. temp &= ~(MII_M1111_HWCFG_MODE_MASK);
  591. temp |= MII_M1111_HWCFG_MODE_SGMII_NO_CLK;
  592. temp |= MII_M1111_HWCFG_FIBER_COPPER_AUTO;
  593. err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
  594. if (err < 0)
  595. return err;
  596. /* make sure copper is selected */
  597. err = phy_read(phydev, MII_M1145_PHY_EXT_ADDR_PAGE);
  598. if (err < 0)
  599. return err;
  600. err = phy_write(phydev, MII_M1145_PHY_EXT_ADDR_PAGE,
  601. err & (~0xff));
  602. if (err < 0)
  603. return err;
  604. }
  605. if (phydev->interface == PHY_INTERFACE_MODE_RTBI) {
  606. temp = phy_read(phydev, MII_M1111_PHY_EXT_CR);
  607. if (temp < 0)
  608. return temp;
  609. temp |= (MII_M1111_RX_DELAY | MII_M1111_TX_DELAY);
  610. err = phy_write(phydev, MII_M1111_PHY_EXT_CR, temp);
  611. if (err < 0)
  612. return err;
  613. temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
  614. if (temp < 0)
  615. return temp;
  616. temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
  617. temp |= 0x7 | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
  618. err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
  619. if (err < 0)
  620. return err;
  621. /* soft reset */
  622. err = phy_write(phydev, MII_BMCR, BMCR_RESET);
  623. if (err < 0)
  624. return err;
  625. do
  626. temp = phy_read(phydev, MII_BMCR);
  627. while (temp & BMCR_RESET);
  628. temp = phy_read(phydev, MII_M1111_PHY_EXT_SR);
  629. if (temp < 0)
  630. return temp;
  631. temp &= ~(MII_M1111_HWCFG_MODE_MASK | MII_M1111_HWCFG_FIBER_COPPER_RES);
  632. temp |= MII_M1111_HWCFG_MODE_COPPER_RTBI | MII_M1111_HWCFG_FIBER_COPPER_AUTO;
  633. err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp);
  634. if (err < 0)
  635. return err;
  636. }
  637. err = marvell_of_reg_init(phydev);
  638. if (err < 0)
  639. return err;
  640. return phy_write(phydev, MII_BMCR, BMCR_RESET);
  641. }
  642. static int m88e1121_config_init(struct phy_device *phydev)
  643. {
  644. int err, oldpage;
  645. oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
  646. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_88E1121_PHY_LED_PAGE);
  647. if (err < 0)
  648. return err;
  649. /* Default PHY LED config: LED[0] .. Link, LED[1] .. Activity */
  650. err = phy_write(phydev, MII_88E1121_PHY_LED_CTRL,
  651. MII_88E1121_PHY_LED_DEF);
  652. if (err < 0)
  653. return err;
  654. phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
  655. /* Set marvell,reg-init configuration from device tree */
  656. return marvell_config_init(phydev);
  657. }
  658. static int m88e1510_config_init(struct phy_device *phydev)
  659. {
  660. int err;
  661. int temp;
  662. /* SGMII-to-Copper mode initialization */
  663. if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
  664. /* Select page 18 */
  665. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 18);
  666. if (err < 0)
  667. return err;
  668. /* In reg 20, write MODE[2:0] = 0x1 (SGMII to Copper) */
  669. temp = phy_read(phydev, MII_88E1510_GEN_CTRL_REG_1);
  670. temp &= ~MII_88E1510_GEN_CTRL_REG_1_MODE_MASK;
  671. temp |= MII_88E1510_GEN_CTRL_REG_1_MODE_SGMII;
  672. err = phy_write(phydev, MII_88E1510_GEN_CTRL_REG_1, temp);
  673. if (err < 0)
  674. return err;
  675. /* PHY reset is necessary after changing MODE[2:0] */
  676. temp |= MII_88E1510_GEN_CTRL_REG_1_RESET;
  677. err = phy_write(phydev, MII_88E1510_GEN_CTRL_REG_1, temp);
  678. if (err < 0)
  679. return err;
  680. /* Reset page selection */
  681. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0);
  682. if (err < 0)
  683. return err;
  684. }
  685. return m88e1121_config_init(phydev);
  686. }
  687. static int m88e1118_config_aneg(struct phy_device *phydev)
  688. {
  689. int err;
  690. err = phy_write(phydev, MII_BMCR, BMCR_RESET);
  691. if (err < 0)
  692. return err;
  693. err = phy_write(phydev, MII_M1011_PHY_SCR,
  694. MII_M1011_PHY_SCR_AUTO_CROSS);
  695. if (err < 0)
  696. return err;
  697. err = genphy_config_aneg(phydev);
  698. return 0;
  699. }
  700. static int m88e1118_config_init(struct phy_device *phydev)
  701. {
  702. int err;
  703. /* Change address */
  704. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
  705. if (err < 0)
  706. return err;
  707. /* Enable 1000 Mbit */
  708. err = phy_write(phydev, 0x15, 0x1070);
  709. if (err < 0)
  710. return err;
  711. /* Change address */
  712. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0003);
  713. if (err < 0)
  714. return err;
  715. /* Adjust LED Control */
  716. if (phydev->dev_flags & MARVELL_PHY_M1118_DNS323_LEDS)
  717. err = phy_write(phydev, 0x10, 0x1100);
  718. else
  719. err = phy_write(phydev, 0x10, 0x021e);
  720. if (err < 0)
  721. return err;
  722. err = marvell_of_reg_init(phydev);
  723. if (err < 0)
  724. return err;
  725. /* Reset address */
  726. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
  727. if (err < 0)
  728. return err;
  729. return phy_write(phydev, MII_BMCR, BMCR_RESET);
  730. }
  731. static int m88e1149_config_init(struct phy_device *phydev)
  732. {
  733. int err;
  734. /* Change address */
  735. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0002);
  736. if (err < 0)
  737. return err;
  738. /* Enable 1000 Mbit */
  739. err = phy_write(phydev, 0x15, 0x1048);
  740. if (err < 0)
  741. return err;
  742. err = marvell_of_reg_init(phydev);
  743. if (err < 0)
  744. return err;
  745. /* Reset address */
  746. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x0);
  747. if (err < 0)
  748. return err;
  749. return phy_write(phydev, MII_BMCR, BMCR_RESET);
  750. }
  751. static int m88e1145_config_init(struct phy_device *phydev)
  752. {
  753. int err;
  754. int temp;
  755. /* Take care of errata E0 & E1 */
  756. err = phy_write(phydev, 0x1d, 0x001b);
  757. if (err < 0)
  758. return err;
  759. err = phy_write(phydev, 0x1e, 0x418f);
  760. if (err < 0)
  761. return err;
  762. err = phy_write(phydev, 0x1d, 0x0016);
  763. if (err < 0)
  764. return err;
  765. err = phy_write(phydev, 0x1e, 0xa2da);
  766. if (err < 0)
  767. return err;
  768. if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) {
  769. int temp = phy_read(phydev, MII_M1145_PHY_EXT_CR);
  770. if (temp < 0)
  771. return temp;
  772. temp |= (MII_M1145_RGMII_RX_DELAY | MII_M1145_RGMII_TX_DELAY);
  773. err = phy_write(phydev, MII_M1145_PHY_EXT_CR, temp);
  774. if (err < 0)
  775. return err;
  776. if (phydev->dev_flags & MARVELL_PHY_M1145_FLAGS_RESISTANCE) {
  777. err = phy_write(phydev, 0x1d, 0x0012);
  778. if (err < 0)
  779. return err;
  780. temp = phy_read(phydev, 0x1e);
  781. if (temp < 0)
  782. return temp;
  783. temp &= 0xf03f;
  784. temp |= 2 << 9; /* 36 ohm */
  785. temp |= 2 << 6; /* 39 ohm */
  786. err = phy_write(phydev, 0x1e, temp);
  787. if (err < 0)
  788. return err;
  789. err = phy_write(phydev, 0x1d, 0x3);
  790. if (err < 0)
  791. return err;
  792. err = phy_write(phydev, 0x1e, 0x8000);
  793. if (err < 0)
  794. return err;
  795. }
  796. }
  797. if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
  798. temp = phy_read(phydev, MII_M1145_PHY_EXT_SR);
  799. if (temp < 0)
  800. return temp;
  801. temp &= ~MII_M1145_HWCFG_MODE_MASK;
  802. temp |= MII_M1145_HWCFG_MODE_SGMII_NO_CLK;
  803. temp |= MII_M1145_HWCFG_FIBER_COPPER_AUTO;
  804. err = phy_write(phydev, MII_M1145_PHY_EXT_SR, temp);
  805. if (err < 0)
  806. return err;
  807. }
  808. err = marvell_of_reg_init(phydev);
  809. if (err < 0)
  810. return err;
  811. return 0;
  812. }
  813. /**
  814. * fiber_lpa_to_ethtool_lpa_t
  815. * @lpa: value of the MII_LPA register for fiber link
  816. *
  817. * A small helper function that translates MII_LPA
  818. * bits to ethtool LP advertisement settings.
  819. */
  820. static u32 fiber_lpa_to_ethtool_lpa_t(u32 lpa)
  821. {
  822. u32 result = 0;
  823. if (lpa & LPA_FIBER_1000HALF)
  824. result |= ADVERTISED_1000baseT_Half;
  825. if (lpa & LPA_FIBER_1000FULL)
  826. result |= ADVERTISED_1000baseT_Full;
  827. return result;
  828. }
  829. /**
  830. * marvell_update_link - update link status in real time in @phydev
  831. * @phydev: target phy_device struct
  832. *
  833. * Description: Update the value in phydev->link to reflect the
  834. * current link value.
  835. */
  836. static int marvell_update_link(struct phy_device *phydev, int fiber)
  837. {
  838. int status;
  839. /* Use the generic register for copper link, or specific
  840. * register for fiber case */
  841. if (fiber) {
  842. status = phy_read(phydev, MII_M1011_PHY_STATUS);
  843. if (status < 0)
  844. return status;
  845. if ((status & REGISTER_LINK_STATUS) == 0)
  846. phydev->link = 0;
  847. else
  848. phydev->link = 1;
  849. } else {
  850. return genphy_update_link(phydev);
  851. }
  852. return 0;
  853. }
  854. /* marvell_read_status_page
  855. *
  856. * Description:
  857. * Check the link, then figure out the current state
  858. * by comparing what we advertise with what the link partner
  859. * advertises. Start by checking the gigabit possibilities,
  860. * then move on to 10/100.
  861. */
  862. static int marvell_read_status_page(struct phy_device *phydev, int page)
  863. {
  864. int adv;
  865. int err;
  866. int lpa;
  867. int lpagb;
  868. int status = 0;
  869. int fiber;
  870. /* Detect and update the link, but return if there
  871. * was an error */
  872. if (page == MII_M1111_FIBER)
  873. fiber = 1;
  874. else
  875. fiber = 0;
  876. err = marvell_update_link(phydev, fiber);
  877. if (err)
  878. return err;
  879. if (AUTONEG_ENABLE == phydev->autoneg) {
  880. status = phy_read(phydev, MII_M1011_PHY_STATUS);
  881. if (status < 0)
  882. return status;
  883. lpa = phy_read(phydev, MII_LPA);
  884. if (lpa < 0)
  885. return lpa;
  886. lpagb = phy_read(phydev, MII_STAT1000);
  887. if (lpagb < 0)
  888. return lpagb;
  889. adv = phy_read(phydev, MII_ADVERTISE);
  890. if (adv < 0)
  891. return adv;
  892. lpa &= adv;
  893. if (status & MII_M1011_PHY_STATUS_FULLDUPLEX)
  894. phydev->duplex = DUPLEX_FULL;
  895. else
  896. phydev->duplex = DUPLEX_HALF;
  897. status = status & MII_M1011_PHY_STATUS_SPD_MASK;
  898. phydev->pause = phydev->asym_pause = 0;
  899. switch (status) {
  900. case MII_M1011_PHY_STATUS_1000:
  901. phydev->speed = SPEED_1000;
  902. break;
  903. case MII_M1011_PHY_STATUS_100:
  904. phydev->speed = SPEED_100;
  905. break;
  906. default:
  907. phydev->speed = SPEED_10;
  908. break;
  909. }
  910. if (!fiber) {
  911. phydev->lp_advertising = mii_stat1000_to_ethtool_lpa_t(lpagb) |
  912. mii_lpa_to_ethtool_lpa_t(lpa);
  913. if (phydev->duplex == DUPLEX_FULL) {
  914. phydev->pause = lpa & LPA_PAUSE_CAP ? 1 : 0;
  915. phydev->asym_pause = lpa & LPA_PAUSE_ASYM ? 1 : 0;
  916. }
  917. } else {
  918. /* The fiber link is only 1000M capable */
  919. phydev->lp_advertising = fiber_lpa_to_ethtool_lpa_t(lpa);
  920. if (phydev->duplex == DUPLEX_FULL) {
  921. if (!(lpa & LPA_PAUSE_FIBER)) {
  922. phydev->pause = 0;
  923. phydev->asym_pause = 0;
  924. } else if ((lpa & LPA_PAUSE_ASYM_FIBER)) {
  925. phydev->pause = 1;
  926. phydev->asym_pause = 1;
  927. } else {
  928. phydev->pause = 1;
  929. phydev->asym_pause = 0;
  930. }
  931. }
  932. }
  933. } else {
  934. int bmcr = phy_read(phydev, MII_BMCR);
  935. if (bmcr < 0)
  936. return bmcr;
  937. if (bmcr & BMCR_FULLDPLX)
  938. phydev->duplex = DUPLEX_FULL;
  939. else
  940. phydev->duplex = DUPLEX_HALF;
  941. if (bmcr & BMCR_SPEED1000)
  942. phydev->speed = SPEED_1000;
  943. else if (bmcr & BMCR_SPEED100)
  944. phydev->speed = SPEED_100;
  945. else
  946. phydev->speed = SPEED_10;
  947. phydev->pause = phydev->asym_pause = 0;
  948. phydev->lp_advertising = 0;
  949. }
  950. return 0;
  951. }
  952. /* marvell_read_status
  953. *
  954. * Some Marvell's phys have two modes: fiber and copper.
  955. * Both need status checked.
  956. * Description:
  957. * First, check the fiber link and status.
  958. * If the fiber link is down, check the copper link and status which
  959. * will be the default value if both link are down.
  960. */
  961. static int marvell_read_status(struct phy_device *phydev)
  962. {
  963. int err;
  964. /* Check the fiber mode first */
  965. if (phydev->supported & SUPPORTED_FIBRE &&
  966. phydev->interface != PHY_INTERFACE_MODE_SGMII) {
  967. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_FIBER);
  968. if (err < 0)
  969. goto error;
  970. err = marvell_read_status_page(phydev, MII_M1111_FIBER);
  971. if (err < 0)
  972. goto error;
  973. /* If the fiber link is up, it is the selected and used link.
  974. * In this case, we need to stay in the fiber page.
  975. * Please to be careful about that, avoid to restore Copper page
  976. * in other functions which could break the behaviour
  977. * for some fiber phy like 88E1512.
  978. * */
  979. if (phydev->link)
  980. return 0;
  981. /* If fiber link is down, check and save copper mode state */
  982. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
  983. if (err < 0)
  984. goto error;
  985. }
  986. return marvell_read_status_page(phydev, MII_M1111_COPPER);
  987. error:
  988. phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
  989. return err;
  990. }
  991. /* marvell_suspend
  992. *
  993. * Some Marvell's phys have two modes: fiber and copper.
  994. * Both need to be suspended
  995. */
  996. static int marvell_suspend(struct phy_device *phydev)
  997. {
  998. int err;
  999. /* Suspend the fiber mode first */
  1000. if (!(phydev->supported & SUPPORTED_FIBRE)) {
  1001. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_FIBER);
  1002. if (err < 0)
  1003. goto error;
  1004. /* With the page set, use the generic suspend */
  1005. err = genphy_suspend(phydev);
  1006. if (err < 0)
  1007. goto error;
  1008. /* Then, the copper link */
  1009. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
  1010. if (err < 0)
  1011. goto error;
  1012. }
  1013. /* With the page set, use the generic suspend */
  1014. return genphy_suspend(phydev);
  1015. error:
  1016. phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
  1017. return err;
  1018. }
  1019. /* marvell_resume
  1020. *
  1021. * Some Marvell's phys have two modes: fiber and copper.
  1022. * Both need to be resumed
  1023. */
  1024. static int marvell_resume(struct phy_device *phydev)
  1025. {
  1026. int err;
  1027. /* Resume the fiber mode first */
  1028. if (!(phydev->supported & SUPPORTED_FIBRE)) {
  1029. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_FIBER);
  1030. if (err < 0)
  1031. goto error;
  1032. /* With the page set, use the generic resume */
  1033. err = genphy_resume(phydev);
  1034. if (err < 0)
  1035. goto error;
  1036. /* Then, the copper link */
  1037. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
  1038. if (err < 0)
  1039. goto error;
  1040. }
  1041. /* With the page set, use the generic resume */
  1042. return genphy_resume(phydev);
  1043. error:
  1044. phy_write(phydev, MII_MARVELL_PHY_PAGE, MII_M1111_COPPER);
  1045. return err;
  1046. }
  1047. static int marvell_aneg_done(struct phy_device *phydev)
  1048. {
  1049. int retval = phy_read(phydev, MII_M1011_PHY_STATUS);
  1050. return (retval < 0) ? retval : (retval & MII_M1011_PHY_STATUS_RESOLVED);
  1051. }
  1052. static int m88e1121_did_interrupt(struct phy_device *phydev)
  1053. {
  1054. int imask;
  1055. imask = phy_read(phydev, MII_M1011_IEVENT);
  1056. if (imask & MII_M1011_IMASK_INIT)
  1057. return 1;
  1058. return 0;
  1059. }
  1060. static void m88e1318_get_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol)
  1061. {
  1062. wol->supported = WAKE_MAGIC;
  1063. wol->wolopts = 0;
  1064. if (phy_write(phydev, MII_MARVELL_PHY_PAGE,
  1065. MII_88E1318S_PHY_WOL_PAGE) < 0)
  1066. return;
  1067. if (phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL) &
  1068. MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE)
  1069. wol->wolopts |= WAKE_MAGIC;
  1070. if (phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x00) < 0)
  1071. return;
  1072. }
  1073. static int m88e1318_set_wol(struct phy_device *phydev, struct ethtool_wolinfo *wol)
  1074. {
  1075. int err, oldpage, temp;
  1076. oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
  1077. if (wol->wolopts & WAKE_MAGIC) {
  1078. /* Explicitly switch to page 0x00, just to be sure */
  1079. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, 0x00);
  1080. if (err < 0)
  1081. return err;
  1082. /* Enable the WOL interrupt */
  1083. temp = phy_read(phydev, MII_88E1318S_PHY_CSIER);
  1084. temp |= MII_88E1318S_PHY_CSIER_WOL_EIE;
  1085. err = phy_write(phydev, MII_88E1318S_PHY_CSIER, temp);
  1086. if (err < 0)
  1087. return err;
  1088. err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
  1089. MII_88E1318S_PHY_LED_PAGE);
  1090. if (err < 0)
  1091. return err;
  1092. /* Setup LED[2] as interrupt pin (active low) */
  1093. temp = phy_read(phydev, MII_88E1318S_PHY_LED_TCR);
  1094. temp &= ~MII_88E1318S_PHY_LED_TCR_FORCE_INT;
  1095. temp |= MII_88E1318S_PHY_LED_TCR_INTn_ENABLE;
  1096. temp |= MII_88E1318S_PHY_LED_TCR_INT_ACTIVE_LOW;
  1097. err = phy_write(phydev, MII_88E1318S_PHY_LED_TCR, temp);
  1098. if (err < 0)
  1099. return err;
  1100. err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
  1101. MII_88E1318S_PHY_WOL_PAGE);
  1102. if (err < 0)
  1103. return err;
  1104. /* Store the device address for the magic packet */
  1105. err = phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD2,
  1106. ((phydev->attached_dev->dev_addr[5] << 8) |
  1107. phydev->attached_dev->dev_addr[4]));
  1108. if (err < 0)
  1109. return err;
  1110. err = phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD1,
  1111. ((phydev->attached_dev->dev_addr[3] << 8) |
  1112. phydev->attached_dev->dev_addr[2]));
  1113. if (err < 0)
  1114. return err;
  1115. err = phy_write(phydev, MII_88E1318S_PHY_MAGIC_PACKET_WORD0,
  1116. ((phydev->attached_dev->dev_addr[1] << 8) |
  1117. phydev->attached_dev->dev_addr[0]));
  1118. if (err < 0)
  1119. return err;
  1120. /* Clear WOL status and enable magic packet matching */
  1121. temp = phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL);
  1122. temp |= MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS;
  1123. temp |= MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE;
  1124. err = phy_write(phydev, MII_88E1318S_PHY_WOL_CTRL, temp);
  1125. if (err < 0)
  1126. return err;
  1127. } else {
  1128. err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
  1129. MII_88E1318S_PHY_WOL_PAGE);
  1130. if (err < 0)
  1131. return err;
  1132. /* Clear WOL status and disable magic packet matching */
  1133. temp = phy_read(phydev, MII_88E1318S_PHY_WOL_CTRL);
  1134. temp |= MII_88E1318S_PHY_WOL_CTRL_CLEAR_WOL_STATUS;
  1135. temp &= ~MII_88E1318S_PHY_WOL_CTRL_MAGIC_PACKET_MATCH_ENABLE;
  1136. err = phy_write(phydev, MII_88E1318S_PHY_WOL_CTRL, temp);
  1137. if (err < 0)
  1138. return err;
  1139. }
  1140. err = phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
  1141. if (err < 0)
  1142. return err;
  1143. return 0;
  1144. }
  1145. static int marvell_get_sset_count(struct phy_device *phydev)
  1146. {
  1147. if (phydev->supported & SUPPORTED_FIBRE)
  1148. return ARRAY_SIZE(marvell_hw_stats);
  1149. else
  1150. return ARRAY_SIZE(marvell_hw_stats) - NB_FIBER_STATS;
  1151. }
  1152. static void marvell_get_strings(struct phy_device *phydev, u8 *data)
  1153. {
  1154. int i;
  1155. for (i = 0; i < ARRAY_SIZE(marvell_hw_stats); i++) {
  1156. memcpy(data + i * ETH_GSTRING_LEN,
  1157. marvell_hw_stats[i].string, ETH_GSTRING_LEN);
  1158. }
  1159. }
  1160. #ifndef UINT64_MAX
  1161. #define UINT64_MAX (u64)(~((u64)0))
  1162. #endif
  1163. static u64 marvell_get_stat(struct phy_device *phydev, int i)
  1164. {
  1165. struct marvell_hw_stat stat = marvell_hw_stats[i];
  1166. struct marvell_priv *priv = phydev->priv;
  1167. int err, oldpage, val;
  1168. u64 ret;
  1169. oldpage = phy_read(phydev, MII_MARVELL_PHY_PAGE);
  1170. err = phy_write(phydev, MII_MARVELL_PHY_PAGE,
  1171. stat.page);
  1172. if (err < 0)
  1173. return UINT64_MAX;
  1174. val = phy_read(phydev, stat.reg);
  1175. if (val < 0) {
  1176. ret = UINT64_MAX;
  1177. } else {
  1178. val = val & ((1 << stat.bits) - 1);
  1179. priv->stats[i] += val;
  1180. ret = priv->stats[i];
  1181. }
  1182. phy_write(phydev, MII_MARVELL_PHY_PAGE, oldpage);
  1183. return ret;
  1184. }
  1185. static void marvell_get_stats(struct phy_device *phydev,
  1186. struct ethtool_stats *stats, u64 *data)
  1187. {
  1188. int i;
  1189. for (i = 0; i < ARRAY_SIZE(marvell_hw_stats); i++)
  1190. data[i] = marvell_get_stat(phydev, i);
  1191. }
  1192. static int marvell_probe(struct phy_device *phydev)
  1193. {
  1194. struct marvell_priv *priv;
  1195. priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
  1196. if (!priv)
  1197. return -ENOMEM;
  1198. phydev->priv = priv;
  1199. return 0;
  1200. }
  1201. static struct phy_driver marvell_drivers[] = {
  1202. {
  1203. .phy_id = MARVELL_PHY_ID_88E1101,
  1204. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1205. .name = "Marvell 88E1101",
  1206. .features = PHY_GBIT_FEATURES,
  1207. .probe = marvell_probe,
  1208. .flags = PHY_HAS_INTERRUPT,
  1209. .config_init = &marvell_config_init,
  1210. .config_aneg = &marvell_config_aneg,
  1211. .read_status = &genphy_read_status,
  1212. .ack_interrupt = &marvell_ack_interrupt,
  1213. .config_intr = &marvell_config_intr,
  1214. .resume = &genphy_resume,
  1215. .suspend = &genphy_suspend,
  1216. .get_sset_count = marvell_get_sset_count,
  1217. .get_strings = marvell_get_strings,
  1218. .get_stats = marvell_get_stats,
  1219. },
  1220. {
  1221. .phy_id = MARVELL_PHY_ID_88E1112,
  1222. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1223. .name = "Marvell 88E1112",
  1224. .features = PHY_GBIT_FEATURES,
  1225. .flags = PHY_HAS_INTERRUPT,
  1226. .probe = marvell_probe,
  1227. .config_init = &m88e1111_config_init,
  1228. .config_aneg = &marvell_config_aneg,
  1229. .read_status = &genphy_read_status,
  1230. .ack_interrupt = &marvell_ack_interrupt,
  1231. .config_intr = &marvell_config_intr,
  1232. .resume = &genphy_resume,
  1233. .suspend = &genphy_suspend,
  1234. .get_sset_count = marvell_get_sset_count,
  1235. .get_strings = marvell_get_strings,
  1236. .get_stats = marvell_get_stats,
  1237. },
  1238. {
  1239. .phy_id = MARVELL_PHY_ID_88E1111,
  1240. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1241. .name = "Marvell 88E1111",
  1242. .features = PHY_GBIT_FEATURES,
  1243. .flags = PHY_HAS_INTERRUPT,
  1244. .probe = marvell_probe,
  1245. .config_init = &m88e1111_config_init,
  1246. .config_aneg = &m88e1111_config_aneg,
  1247. .read_status = &marvell_read_status,
  1248. .ack_interrupt = &marvell_ack_interrupt,
  1249. .config_intr = &marvell_config_intr,
  1250. .resume = &genphy_resume,
  1251. .suspend = &genphy_suspend,
  1252. .get_sset_count = marvell_get_sset_count,
  1253. .get_strings = marvell_get_strings,
  1254. .get_stats = marvell_get_stats,
  1255. },
  1256. {
  1257. .phy_id = MARVELL_PHY_ID_88E1118,
  1258. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1259. .name = "Marvell 88E1118",
  1260. .features = PHY_GBIT_FEATURES,
  1261. .flags = PHY_HAS_INTERRUPT,
  1262. .probe = marvell_probe,
  1263. .config_init = &m88e1118_config_init,
  1264. .config_aneg = &m88e1118_config_aneg,
  1265. .read_status = &genphy_read_status,
  1266. .ack_interrupt = &marvell_ack_interrupt,
  1267. .config_intr = &marvell_config_intr,
  1268. .resume = &genphy_resume,
  1269. .suspend = &genphy_suspend,
  1270. .get_sset_count = marvell_get_sset_count,
  1271. .get_strings = marvell_get_strings,
  1272. .get_stats = marvell_get_stats,
  1273. },
  1274. {
  1275. .phy_id = MARVELL_PHY_ID_88E1121R,
  1276. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1277. .name = "Marvell 88E1121R",
  1278. .features = PHY_GBIT_FEATURES,
  1279. .flags = PHY_HAS_INTERRUPT,
  1280. .probe = marvell_probe,
  1281. .config_init = &m88e1121_config_init,
  1282. .config_aneg = &m88e1121_config_aneg,
  1283. .read_status = &marvell_read_status,
  1284. .ack_interrupt = &marvell_ack_interrupt,
  1285. .config_intr = &marvell_config_intr,
  1286. .did_interrupt = &m88e1121_did_interrupt,
  1287. .resume = &genphy_resume,
  1288. .suspend = &genphy_suspend,
  1289. .get_sset_count = marvell_get_sset_count,
  1290. .get_strings = marvell_get_strings,
  1291. .get_stats = marvell_get_stats,
  1292. },
  1293. {
  1294. .phy_id = MARVELL_PHY_ID_88E1318S,
  1295. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1296. .name = "Marvell 88E1318S",
  1297. .features = PHY_GBIT_FEATURES,
  1298. .flags = PHY_HAS_INTERRUPT,
  1299. .probe = marvell_probe,
  1300. .config_init = &m88e1121_config_init,
  1301. .config_aneg = &m88e1318_config_aneg,
  1302. .read_status = &marvell_read_status,
  1303. .ack_interrupt = &marvell_ack_interrupt,
  1304. .config_intr = &marvell_config_intr,
  1305. .did_interrupt = &m88e1121_did_interrupt,
  1306. .get_wol = &m88e1318_get_wol,
  1307. .set_wol = &m88e1318_set_wol,
  1308. .resume = &genphy_resume,
  1309. .suspend = &genphy_suspend,
  1310. .get_sset_count = marvell_get_sset_count,
  1311. .get_strings = marvell_get_strings,
  1312. .get_stats = marvell_get_stats,
  1313. },
  1314. {
  1315. .phy_id = MARVELL_PHY_ID_88E1145,
  1316. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1317. .name = "Marvell 88E1145",
  1318. .features = PHY_GBIT_FEATURES,
  1319. .flags = PHY_HAS_INTERRUPT,
  1320. .probe = marvell_probe,
  1321. .config_init = &m88e1145_config_init,
  1322. .config_aneg = &marvell_config_aneg,
  1323. .read_status = &genphy_read_status,
  1324. .ack_interrupt = &marvell_ack_interrupt,
  1325. .config_intr = &marvell_config_intr,
  1326. .resume = &genphy_resume,
  1327. .suspend = &genphy_suspend,
  1328. .get_sset_count = marvell_get_sset_count,
  1329. .get_strings = marvell_get_strings,
  1330. .get_stats = marvell_get_stats,
  1331. },
  1332. {
  1333. .phy_id = MARVELL_PHY_ID_88E1149R,
  1334. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1335. .name = "Marvell 88E1149R",
  1336. .features = PHY_GBIT_FEATURES,
  1337. .flags = PHY_HAS_INTERRUPT,
  1338. .probe = marvell_probe,
  1339. .config_init = &m88e1149_config_init,
  1340. .config_aneg = &m88e1118_config_aneg,
  1341. .read_status = &genphy_read_status,
  1342. .ack_interrupt = &marvell_ack_interrupt,
  1343. .config_intr = &marvell_config_intr,
  1344. .resume = &genphy_resume,
  1345. .suspend = &genphy_suspend,
  1346. .get_sset_count = marvell_get_sset_count,
  1347. .get_strings = marvell_get_strings,
  1348. .get_stats = marvell_get_stats,
  1349. },
  1350. {
  1351. .phy_id = MARVELL_PHY_ID_88E1240,
  1352. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1353. .name = "Marvell 88E1240",
  1354. .features = PHY_GBIT_FEATURES,
  1355. .flags = PHY_HAS_INTERRUPT,
  1356. .probe = marvell_probe,
  1357. .config_init = &m88e1111_config_init,
  1358. .config_aneg = &marvell_config_aneg,
  1359. .read_status = &genphy_read_status,
  1360. .ack_interrupt = &marvell_ack_interrupt,
  1361. .config_intr = &marvell_config_intr,
  1362. .resume = &genphy_resume,
  1363. .suspend = &genphy_suspend,
  1364. .get_sset_count = marvell_get_sset_count,
  1365. .get_strings = marvell_get_strings,
  1366. .get_stats = marvell_get_stats,
  1367. },
  1368. {
  1369. .phy_id = MARVELL_PHY_ID_88E1116R,
  1370. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1371. .name = "Marvell 88E1116R",
  1372. .features = PHY_GBIT_FEATURES,
  1373. .flags = PHY_HAS_INTERRUPT,
  1374. .probe = marvell_probe,
  1375. .config_init = &m88e1116r_config_init,
  1376. .config_aneg = &genphy_config_aneg,
  1377. .read_status = &genphy_read_status,
  1378. .ack_interrupt = &marvell_ack_interrupt,
  1379. .config_intr = &marvell_config_intr,
  1380. .resume = &genphy_resume,
  1381. .suspend = &genphy_suspend,
  1382. .get_sset_count = marvell_get_sset_count,
  1383. .get_strings = marvell_get_strings,
  1384. .get_stats = marvell_get_stats,
  1385. },
  1386. {
  1387. .phy_id = MARVELL_PHY_ID_88E1510,
  1388. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1389. .name = "Marvell 88E1510",
  1390. .features = PHY_GBIT_FEATURES | SUPPORTED_FIBRE,
  1391. .flags = PHY_HAS_INTERRUPT,
  1392. .probe = marvell_probe,
  1393. .config_init = &m88e1510_config_init,
  1394. .config_aneg = &m88e1510_config_aneg,
  1395. .read_status = &marvell_read_status,
  1396. .ack_interrupt = &marvell_ack_interrupt,
  1397. .config_intr = &marvell_config_intr,
  1398. .did_interrupt = &m88e1121_did_interrupt,
  1399. .resume = &marvell_resume,
  1400. .suspend = &marvell_suspend,
  1401. .get_sset_count = marvell_get_sset_count,
  1402. .get_strings = marvell_get_strings,
  1403. .get_stats = marvell_get_stats,
  1404. },
  1405. {
  1406. .phy_id = MARVELL_PHY_ID_88E1540,
  1407. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1408. .name = "Marvell 88E1540",
  1409. .features = PHY_GBIT_FEATURES,
  1410. .flags = PHY_HAS_INTERRUPT,
  1411. .probe = marvell_probe,
  1412. .config_init = &marvell_config_init,
  1413. .config_aneg = &m88e1510_config_aneg,
  1414. .read_status = &marvell_read_status,
  1415. .ack_interrupt = &marvell_ack_interrupt,
  1416. .config_intr = &marvell_config_intr,
  1417. .did_interrupt = &m88e1121_did_interrupt,
  1418. .resume = &genphy_resume,
  1419. .suspend = &genphy_suspend,
  1420. .get_sset_count = marvell_get_sset_count,
  1421. .get_strings = marvell_get_strings,
  1422. .get_stats = marvell_get_stats,
  1423. },
  1424. {
  1425. .phy_id = MARVELL_PHY_ID_88E3016,
  1426. .phy_id_mask = MARVELL_PHY_ID_MASK,
  1427. .name = "Marvell 88E3016",
  1428. .features = PHY_BASIC_FEATURES,
  1429. .flags = PHY_HAS_INTERRUPT,
  1430. .probe = marvell_probe,
  1431. .config_aneg = &genphy_config_aneg,
  1432. .config_init = &m88e3016_config_init,
  1433. .aneg_done = &marvell_aneg_done,
  1434. .read_status = &marvell_read_status,
  1435. .ack_interrupt = &marvell_ack_interrupt,
  1436. .config_intr = &marvell_config_intr,
  1437. .did_interrupt = &m88e1121_did_interrupt,
  1438. .resume = &genphy_resume,
  1439. .suspend = &genphy_suspend,
  1440. .get_sset_count = marvell_get_sset_count,
  1441. .get_strings = marvell_get_strings,
  1442. .get_stats = marvell_get_stats,
  1443. },
  1444. };
  1445. module_phy_driver(marvell_drivers);
  1446. static struct mdio_device_id __maybe_unused marvell_tbl[] = {
  1447. { MARVELL_PHY_ID_88E1101, MARVELL_PHY_ID_MASK },
  1448. { MARVELL_PHY_ID_88E1112, MARVELL_PHY_ID_MASK },
  1449. { MARVELL_PHY_ID_88E1111, MARVELL_PHY_ID_MASK },
  1450. { MARVELL_PHY_ID_88E1118, MARVELL_PHY_ID_MASK },
  1451. { MARVELL_PHY_ID_88E1121R, MARVELL_PHY_ID_MASK },
  1452. { MARVELL_PHY_ID_88E1145, MARVELL_PHY_ID_MASK },
  1453. { MARVELL_PHY_ID_88E1149R, MARVELL_PHY_ID_MASK },
  1454. { MARVELL_PHY_ID_88E1240, MARVELL_PHY_ID_MASK },
  1455. { MARVELL_PHY_ID_88E1318S, MARVELL_PHY_ID_MASK },
  1456. { MARVELL_PHY_ID_88E1116R, MARVELL_PHY_ID_MASK },
  1457. { MARVELL_PHY_ID_88E1510, MARVELL_PHY_ID_MASK },
  1458. { MARVELL_PHY_ID_88E1540, MARVELL_PHY_ID_MASK },
  1459. { MARVELL_PHY_ID_88E3016, MARVELL_PHY_ID_MASK },
  1460. { }
  1461. };
  1462. MODULE_DEVICE_TABLE(mdio, marvell_tbl);