uec.c 34 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050105110521053105410551056105710581059106010611062106310641065106610671068106910701071107210731074107510761077107810791080108110821083108410851086108710881089109010911092109310941095109610971098109911001101110211031104110511061107110811091110111111121113111411151116111711181119112011211122112311241125112611271128112911301131113211331134113511361137113811391140114111421143114411451146114711481149115011511152115311541155115611571158115911601161116211631164116511661167116811691170117111721173117411751176117711781179118011811182118311841185118611871188118911901191119211931194119511961197119811991200120112021203120412051206120712081209121012111212121312141215121612171218121912201221122212231224122512261227122812291230123112321233123412351236123712381239124012411242124312441245124612471248124912501251125212531254125512561257125812591260126112621263126412651266126712681269127012711272127312741275127612771278127912801281128212831284128512861287128812891290129112921293129412951296129712981299130013011302130313041305130613071308130913101311131213131314131513161317131813191320132113221323132413251326132713281329133013311332133313341335133613371338133913401341134213431344134513461347134813491350135113521353135413551356135713581359136013611362136313641365136613671368136913701371137213731374137513761377137813791380138113821383138413851386138713881389139013911392139313941395139613971398139914001401140214031404140514061407140814091410141114121413141414151416141714181419142014211422142314241425142614271428142914301431
  1. /*
  2. * Copyright (C) 2006-2011 Freescale Semiconductor, Inc.
  3. *
  4. * Dave Liu <daveliu@freescale.com>
  5. *
  6. * SPDX-License-Identifier: GPL-2.0+
  7. */
  8. #include <common.h>
  9. #include <net.h>
  10. #include <malloc.h>
  11. #include <linux/errno.h>
  12. #include <asm/io.h>
  13. #include <linux/immap_qe.h>
  14. #include "uccf.h"
  15. #include "uec.h"
  16. #include "uec_phy.h"
  17. #include "miiphy.h"
  18. #include <fsl_qe.h>
  19. #include <phy.h>
  20. /* Default UTBIPAR SMI address */
  21. #ifndef CONFIG_UTBIPAR_INIT_TBIPA
  22. #define CONFIG_UTBIPAR_INIT_TBIPA 0x1F
  23. #endif
  24. static uec_info_t uec_info[] = {
  25. #ifdef CONFIG_UEC_ETH1
  26. STD_UEC_INFO(1), /* UEC1 */
  27. #endif
  28. #ifdef CONFIG_UEC_ETH2
  29. STD_UEC_INFO(2), /* UEC2 */
  30. #endif
  31. #ifdef CONFIG_UEC_ETH3
  32. STD_UEC_INFO(3), /* UEC3 */
  33. #endif
  34. #ifdef CONFIG_UEC_ETH4
  35. STD_UEC_INFO(4), /* UEC4 */
  36. #endif
  37. #ifdef CONFIG_UEC_ETH5
  38. STD_UEC_INFO(5), /* UEC5 */
  39. #endif
  40. #ifdef CONFIG_UEC_ETH6
  41. STD_UEC_INFO(6), /* UEC6 */
  42. #endif
  43. #ifdef CONFIG_UEC_ETH7
  44. STD_UEC_INFO(7), /* UEC7 */
  45. #endif
  46. #ifdef CONFIG_UEC_ETH8
  47. STD_UEC_INFO(8), /* UEC8 */
  48. #endif
  49. };
  50. #define MAXCONTROLLERS (8)
  51. static struct eth_device *devlist[MAXCONTROLLERS];
  52. static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
  53. {
  54. uec_t *uec_regs;
  55. u32 maccfg1;
  56. if (!uec) {
  57. printf("%s: uec not initial\n", __FUNCTION__);
  58. return -EINVAL;
  59. }
  60. uec_regs = uec->uec_regs;
  61. maccfg1 = in_be32(&uec_regs->maccfg1);
  62. if (mode & COMM_DIR_TX) {
  63. maccfg1 |= MACCFG1_ENABLE_TX;
  64. out_be32(&uec_regs->maccfg1, maccfg1);
  65. uec->mac_tx_enabled = 1;
  66. }
  67. if (mode & COMM_DIR_RX) {
  68. maccfg1 |= MACCFG1_ENABLE_RX;
  69. out_be32(&uec_regs->maccfg1, maccfg1);
  70. uec->mac_rx_enabled = 1;
  71. }
  72. return 0;
  73. }
  74. static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode)
  75. {
  76. uec_t *uec_regs;
  77. u32 maccfg1;
  78. if (!uec) {
  79. printf("%s: uec not initial\n", __FUNCTION__);
  80. return -EINVAL;
  81. }
  82. uec_regs = uec->uec_regs;
  83. maccfg1 = in_be32(&uec_regs->maccfg1);
  84. if (mode & COMM_DIR_TX) {
  85. maccfg1 &= ~MACCFG1_ENABLE_TX;
  86. out_be32(&uec_regs->maccfg1, maccfg1);
  87. uec->mac_tx_enabled = 0;
  88. }
  89. if (mode & COMM_DIR_RX) {
  90. maccfg1 &= ~MACCFG1_ENABLE_RX;
  91. out_be32(&uec_regs->maccfg1, maccfg1);
  92. uec->mac_rx_enabled = 0;
  93. }
  94. return 0;
  95. }
  96. static int uec_graceful_stop_tx(uec_private_t *uec)
  97. {
  98. ucc_fast_t *uf_regs;
  99. u32 cecr_subblock;
  100. u32 ucce;
  101. if (!uec || !uec->uccf) {
  102. printf("%s: No handle passed.\n", __FUNCTION__);
  103. return -EINVAL;
  104. }
  105. uf_regs = uec->uccf->uf_regs;
  106. /* Clear the grace stop event */
  107. out_be32(&uf_regs->ucce, UCCE_GRA);
  108. /* Issue host command */
  109. cecr_subblock =
  110. ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
  111. qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
  112. (u8)QE_CR_PROTOCOL_ETHERNET, 0);
  113. /* Wait for command to complete */
  114. do {
  115. ucce = in_be32(&uf_regs->ucce);
  116. } while (! (ucce & UCCE_GRA));
  117. uec->grace_stopped_tx = 1;
  118. return 0;
  119. }
  120. static int uec_graceful_stop_rx(uec_private_t *uec)
  121. {
  122. u32 cecr_subblock;
  123. u8 ack;
  124. if (!uec) {
  125. printf("%s: No handle passed.\n", __FUNCTION__);
  126. return -EINVAL;
  127. }
  128. if (!uec->p_rx_glbl_pram) {
  129. printf("%s: No init rx global parameter\n", __FUNCTION__);
  130. return -EINVAL;
  131. }
  132. /* Clear acknowledge bit */
  133. ack = uec->p_rx_glbl_pram->rxgstpack;
  134. ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
  135. uec->p_rx_glbl_pram->rxgstpack = ack;
  136. /* Keep issuing cmd and checking ack bit until it is asserted */
  137. do {
  138. /* Issue host command */
  139. cecr_subblock =
  140. ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
  141. qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
  142. (u8)QE_CR_PROTOCOL_ETHERNET, 0);
  143. ack = uec->p_rx_glbl_pram->rxgstpack;
  144. } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX ));
  145. uec->grace_stopped_rx = 1;
  146. return 0;
  147. }
  148. static int uec_restart_tx(uec_private_t *uec)
  149. {
  150. u32 cecr_subblock;
  151. if (!uec || !uec->uec_info) {
  152. printf("%s: No handle passed.\n", __FUNCTION__);
  153. return -EINVAL;
  154. }
  155. cecr_subblock =
  156. ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
  157. qe_issue_cmd(QE_RESTART_TX, cecr_subblock,
  158. (u8)QE_CR_PROTOCOL_ETHERNET, 0);
  159. uec->grace_stopped_tx = 0;
  160. return 0;
  161. }
  162. static int uec_restart_rx(uec_private_t *uec)
  163. {
  164. u32 cecr_subblock;
  165. if (!uec || !uec->uec_info) {
  166. printf("%s: No handle passed.\n", __FUNCTION__);
  167. return -EINVAL;
  168. }
  169. cecr_subblock =
  170. ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
  171. qe_issue_cmd(QE_RESTART_RX, cecr_subblock,
  172. (u8)QE_CR_PROTOCOL_ETHERNET, 0);
  173. uec->grace_stopped_rx = 0;
  174. return 0;
  175. }
  176. static int uec_open(uec_private_t *uec, comm_dir_e mode)
  177. {
  178. ucc_fast_private_t *uccf;
  179. if (!uec || !uec->uccf) {
  180. printf("%s: No handle passed.\n", __FUNCTION__);
  181. return -EINVAL;
  182. }
  183. uccf = uec->uccf;
  184. /* check if the UCC number is in range. */
  185. if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
  186. printf("%s: ucc_num out of range.\n", __FUNCTION__);
  187. return -EINVAL;
  188. }
  189. /* Enable MAC */
  190. uec_mac_enable(uec, mode);
  191. /* Enable UCC fast */
  192. ucc_fast_enable(uccf, mode);
  193. /* RISC microcode start */
  194. if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) {
  195. uec_restart_tx(uec);
  196. }
  197. if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) {
  198. uec_restart_rx(uec);
  199. }
  200. return 0;
  201. }
  202. static int uec_stop(uec_private_t *uec, comm_dir_e mode)
  203. {
  204. if (!uec || !uec->uccf) {
  205. printf("%s: No handle passed.\n", __FUNCTION__);
  206. return -EINVAL;
  207. }
  208. /* check if the UCC number is in range. */
  209. if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
  210. printf("%s: ucc_num out of range.\n", __FUNCTION__);
  211. return -EINVAL;
  212. }
  213. /* Stop any transmissions */
  214. if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) {
  215. uec_graceful_stop_tx(uec);
  216. }
  217. /* Stop any receptions */
  218. if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) {
  219. uec_graceful_stop_rx(uec);
  220. }
  221. /* Disable the UCC fast */
  222. ucc_fast_disable(uec->uccf, mode);
  223. /* Disable the MAC */
  224. uec_mac_disable(uec, mode);
  225. return 0;
  226. }
  227. static int uec_set_mac_duplex(uec_private_t *uec, int duplex)
  228. {
  229. uec_t *uec_regs;
  230. u32 maccfg2;
  231. if (!uec) {
  232. printf("%s: uec not initial\n", __FUNCTION__);
  233. return -EINVAL;
  234. }
  235. uec_regs = uec->uec_regs;
  236. if (duplex == DUPLEX_HALF) {
  237. maccfg2 = in_be32(&uec_regs->maccfg2);
  238. maccfg2 &= ~MACCFG2_FDX;
  239. out_be32(&uec_regs->maccfg2, maccfg2);
  240. }
  241. if (duplex == DUPLEX_FULL) {
  242. maccfg2 = in_be32(&uec_regs->maccfg2);
  243. maccfg2 |= MACCFG2_FDX;
  244. out_be32(&uec_regs->maccfg2, maccfg2);
  245. }
  246. return 0;
  247. }
  248. static int uec_set_mac_if_mode(uec_private_t *uec,
  249. phy_interface_t if_mode, int speed)
  250. {
  251. phy_interface_t enet_if_mode;
  252. uec_t *uec_regs;
  253. u32 upsmr;
  254. u32 maccfg2;
  255. if (!uec) {
  256. printf("%s: uec not initial\n", __FUNCTION__);
  257. return -EINVAL;
  258. }
  259. uec_regs = uec->uec_regs;
  260. enet_if_mode = if_mode;
  261. maccfg2 = in_be32(&uec_regs->maccfg2);
  262. maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
  263. upsmr = in_be32(&uec->uccf->uf_regs->upsmr);
  264. upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM);
  265. switch (speed) {
  266. case SPEED_10:
  267. maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
  268. switch (enet_if_mode) {
  269. case PHY_INTERFACE_MODE_MII:
  270. break;
  271. case PHY_INTERFACE_MODE_RGMII:
  272. upsmr |= (UPSMR_RPM | UPSMR_R10M);
  273. break;
  274. case PHY_INTERFACE_MODE_RMII:
  275. upsmr |= (UPSMR_R10M | UPSMR_RMM);
  276. break;
  277. default:
  278. return -EINVAL;
  279. break;
  280. }
  281. break;
  282. case SPEED_100:
  283. maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
  284. switch (enet_if_mode) {
  285. case PHY_INTERFACE_MODE_MII:
  286. break;
  287. case PHY_INTERFACE_MODE_RGMII:
  288. upsmr |= UPSMR_RPM;
  289. break;
  290. case PHY_INTERFACE_MODE_RMII:
  291. upsmr |= UPSMR_RMM;
  292. break;
  293. default:
  294. return -EINVAL;
  295. break;
  296. }
  297. break;
  298. case SPEED_1000:
  299. maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
  300. switch (enet_if_mode) {
  301. case PHY_INTERFACE_MODE_GMII:
  302. break;
  303. case PHY_INTERFACE_MODE_TBI:
  304. upsmr |= UPSMR_TBIM;
  305. break;
  306. case PHY_INTERFACE_MODE_RTBI:
  307. upsmr |= (UPSMR_RPM | UPSMR_TBIM);
  308. break;
  309. case PHY_INTERFACE_MODE_RGMII_RXID:
  310. case PHY_INTERFACE_MODE_RGMII_TXID:
  311. case PHY_INTERFACE_MODE_RGMII_ID:
  312. case PHY_INTERFACE_MODE_RGMII:
  313. upsmr |= UPSMR_RPM;
  314. break;
  315. case PHY_INTERFACE_MODE_SGMII:
  316. upsmr |= UPSMR_SGMM;
  317. break;
  318. default:
  319. return -EINVAL;
  320. break;
  321. }
  322. break;
  323. default:
  324. return -EINVAL;
  325. break;
  326. }
  327. out_be32(&uec_regs->maccfg2, maccfg2);
  328. out_be32(&uec->uccf->uf_regs->upsmr, upsmr);
  329. return 0;
  330. }
  331. static int init_mii_management_configuration(uec_mii_t *uec_mii_regs)
  332. {
  333. uint timeout = 0x1000;
  334. u32 miimcfg = 0;
  335. miimcfg = in_be32(&uec_mii_regs->miimcfg);
  336. miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE;
  337. out_be32(&uec_mii_regs->miimcfg, miimcfg);
  338. /* Wait until the bus is free */
  339. while ((in_be32(&uec_mii_regs->miimcfg) & MIIMIND_BUSY) && timeout--);
  340. if (timeout <= 0) {
  341. printf("%s: The MII Bus is stuck!", __FUNCTION__);
  342. return -ETIMEDOUT;
  343. }
  344. return 0;
  345. }
  346. static int init_phy(struct eth_device *dev)
  347. {
  348. uec_private_t *uec;
  349. uec_mii_t *umii_regs;
  350. struct uec_mii_info *mii_info;
  351. struct phy_info *curphy;
  352. int err;
  353. uec = (uec_private_t *)dev->priv;
  354. umii_regs = uec->uec_mii_regs;
  355. uec->oldlink = 0;
  356. uec->oldspeed = 0;
  357. uec->oldduplex = -1;
  358. mii_info = malloc(sizeof(*mii_info));
  359. if (!mii_info) {
  360. printf("%s: Could not allocate mii_info", dev->name);
  361. return -ENOMEM;
  362. }
  363. memset(mii_info, 0, sizeof(*mii_info));
  364. if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
  365. mii_info->speed = SPEED_1000;
  366. } else {
  367. mii_info->speed = SPEED_100;
  368. }
  369. mii_info->duplex = DUPLEX_FULL;
  370. mii_info->pause = 0;
  371. mii_info->link = 1;
  372. mii_info->advertising = (ADVERTISED_10baseT_Half |
  373. ADVERTISED_10baseT_Full |
  374. ADVERTISED_100baseT_Half |
  375. ADVERTISED_100baseT_Full |
  376. ADVERTISED_1000baseT_Full);
  377. mii_info->autoneg = 1;
  378. mii_info->mii_id = uec->uec_info->phy_address;
  379. mii_info->dev = dev;
  380. mii_info->mdio_read = &uec_read_phy_reg;
  381. mii_info->mdio_write = &uec_write_phy_reg;
  382. uec->mii_info = mii_info;
  383. qe_set_mii_clk_src(uec->uec_info->uf_info.ucc_num);
  384. if (init_mii_management_configuration(umii_regs)) {
  385. printf("%s: The MII Bus is stuck!", dev->name);
  386. err = -1;
  387. goto bus_fail;
  388. }
  389. /* get info for this PHY */
  390. curphy = uec_get_phy_info(uec->mii_info);
  391. if (!curphy) {
  392. printf("%s: No PHY found", dev->name);
  393. err = -1;
  394. goto no_phy;
  395. }
  396. mii_info->phyinfo = curphy;
  397. /* Run the commands which initialize the PHY */
  398. if (curphy->init) {
  399. err = curphy->init(uec->mii_info);
  400. if (err)
  401. goto phy_init_fail;
  402. }
  403. return 0;
  404. phy_init_fail:
  405. no_phy:
  406. bus_fail:
  407. free(mii_info);
  408. return err;
  409. }
  410. static void adjust_link(struct eth_device *dev)
  411. {
  412. uec_private_t *uec = (uec_private_t *)dev->priv;
  413. struct uec_mii_info *mii_info = uec->mii_info;
  414. extern void change_phy_interface_mode(struct eth_device *dev,
  415. phy_interface_t mode, int speed);
  416. if (mii_info->link) {
  417. /* Now we make sure that we can be in full duplex mode.
  418. * If not, we operate in half-duplex mode. */
  419. if (mii_info->duplex != uec->oldduplex) {
  420. if (!(mii_info->duplex)) {
  421. uec_set_mac_duplex(uec, DUPLEX_HALF);
  422. printf("%s: Half Duplex\n", dev->name);
  423. } else {
  424. uec_set_mac_duplex(uec, DUPLEX_FULL);
  425. printf("%s: Full Duplex\n", dev->name);
  426. }
  427. uec->oldduplex = mii_info->duplex;
  428. }
  429. if (mii_info->speed != uec->oldspeed) {
  430. phy_interface_t mode =
  431. uec->uec_info->enet_interface_type;
  432. if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
  433. switch (mii_info->speed) {
  434. case SPEED_1000:
  435. break;
  436. case SPEED_100:
  437. printf ("switching to rgmii 100\n");
  438. mode = PHY_INTERFACE_MODE_RGMII;
  439. break;
  440. case SPEED_10:
  441. printf ("switching to rgmii 10\n");
  442. mode = PHY_INTERFACE_MODE_RGMII;
  443. break;
  444. default:
  445. printf("%s: Ack,Speed(%d)is illegal\n",
  446. dev->name, mii_info->speed);
  447. break;
  448. }
  449. }
  450. /* change phy */
  451. change_phy_interface_mode(dev, mode, mii_info->speed);
  452. /* change the MAC interface mode */
  453. uec_set_mac_if_mode(uec, mode, mii_info->speed);
  454. printf("%s: Speed %dBT\n", dev->name, mii_info->speed);
  455. uec->oldspeed = mii_info->speed;
  456. }
  457. if (!uec->oldlink) {
  458. printf("%s: Link is up\n", dev->name);
  459. uec->oldlink = 1;
  460. }
  461. } else { /* if (mii_info->link) */
  462. if (uec->oldlink) {
  463. printf("%s: Link is down\n", dev->name);
  464. uec->oldlink = 0;
  465. uec->oldspeed = 0;
  466. uec->oldduplex = -1;
  467. }
  468. }
  469. }
  470. static void phy_change(struct eth_device *dev)
  471. {
  472. uec_private_t *uec = (uec_private_t *)dev->priv;
  473. #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
  474. ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  475. /* QE9 and QE12 need to be set for enabling QE MII managment signals */
  476. setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
  477. setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
  478. #endif
  479. /* Update the link, speed, duplex */
  480. uec->mii_info->phyinfo->read_status(uec->mii_info);
  481. #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
  482. /*
  483. * QE12 is muxed with LBCTL, it needs to be released for enabling
  484. * LBCTL signal for LBC usage.
  485. */
  486. clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
  487. #endif
  488. /* Adjust the interface according to speed */
  489. adjust_link(dev);
  490. }
  491. #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
  492. /*
  493. * Find a device index from the devlist by name
  494. *
  495. * Returns:
  496. * The index where the device is located, -1 on error
  497. */
  498. static int uec_miiphy_find_dev_by_name(const char *devname)
  499. {
  500. int i;
  501. for (i = 0; i < MAXCONTROLLERS; i++) {
  502. if (strncmp(devname, devlist[i]->name, strlen(devname)) == 0) {
  503. break;
  504. }
  505. }
  506. /* If device cannot be found, returns -1 */
  507. if (i == MAXCONTROLLERS) {
  508. debug ("%s: device %s not found in devlist\n", __FUNCTION__, devname);
  509. i = -1;
  510. }
  511. return i;
  512. }
  513. /*
  514. * Read a MII PHY register.
  515. *
  516. * Returns:
  517. * 0 on success
  518. */
  519. static int uec_miiphy_read(struct mii_dev *bus, int addr, int devad, int reg)
  520. {
  521. unsigned short value = 0;
  522. int devindex = 0;
  523. if (bus->name == NULL) {
  524. debug("%s: NULL pointer given\n", __FUNCTION__);
  525. } else {
  526. devindex = uec_miiphy_find_dev_by_name(bus->name);
  527. if (devindex >= 0) {
  528. value = uec_read_phy_reg(devlist[devindex], addr, reg);
  529. }
  530. }
  531. return value;
  532. }
  533. /*
  534. * Write a MII PHY register.
  535. *
  536. * Returns:
  537. * 0 on success
  538. */
  539. static int uec_miiphy_write(struct mii_dev *bus, int addr, int devad, int reg,
  540. u16 value)
  541. {
  542. int devindex = 0;
  543. if (bus->name == NULL) {
  544. debug("%s: NULL pointer given\n", __FUNCTION__);
  545. } else {
  546. devindex = uec_miiphy_find_dev_by_name(bus->name);
  547. if (devindex >= 0) {
  548. uec_write_phy_reg(devlist[devindex], addr, reg, value);
  549. }
  550. }
  551. return 0;
  552. }
  553. #endif
  554. static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
  555. {
  556. uec_t *uec_regs;
  557. u32 mac_addr1;
  558. u32 mac_addr2;
  559. if (!uec) {
  560. printf("%s: uec not initial\n", __FUNCTION__);
  561. return -EINVAL;
  562. }
  563. uec_regs = uec->uec_regs;
  564. /* if a station address of 0x12345678ABCD, perform a write to
  565. MACSTNADDR1 of 0xCDAB7856,
  566. MACSTNADDR2 of 0x34120000 */
  567. mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
  568. (mac_addr[3] << 8) | (mac_addr[2]);
  569. out_be32(&uec_regs->macstnaddr1, mac_addr1);
  570. mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
  571. out_be32(&uec_regs->macstnaddr2, mac_addr2);
  572. return 0;
  573. }
  574. static int uec_convert_threads_num(uec_num_of_threads_e threads_num,
  575. int *threads_num_ret)
  576. {
  577. int num_threads_numerica;
  578. switch (threads_num) {
  579. case UEC_NUM_OF_THREADS_1:
  580. num_threads_numerica = 1;
  581. break;
  582. case UEC_NUM_OF_THREADS_2:
  583. num_threads_numerica = 2;
  584. break;
  585. case UEC_NUM_OF_THREADS_4:
  586. num_threads_numerica = 4;
  587. break;
  588. case UEC_NUM_OF_THREADS_6:
  589. num_threads_numerica = 6;
  590. break;
  591. case UEC_NUM_OF_THREADS_8:
  592. num_threads_numerica = 8;
  593. break;
  594. default:
  595. printf("%s: Bad number of threads value.",
  596. __FUNCTION__);
  597. return -EINVAL;
  598. }
  599. *threads_num_ret = num_threads_numerica;
  600. return 0;
  601. }
  602. static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx)
  603. {
  604. uec_info_t *uec_info;
  605. u32 end_bd;
  606. u8 bmrx = 0;
  607. int i;
  608. uec_info = uec->uec_info;
  609. /* Alloc global Tx parameter RAM page */
  610. uec->tx_glbl_pram_offset = qe_muram_alloc(
  611. sizeof(uec_tx_global_pram_t),
  612. UEC_TX_GLOBAL_PRAM_ALIGNMENT);
  613. uec->p_tx_glbl_pram = (uec_tx_global_pram_t *)
  614. qe_muram_addr(uec->tx_glbl_pram_offset);
  615. /* Zero the global Tx prameter RAM */
  616. memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t));
  617. /* Init global Tx parameter RAM */
  618. /* TEMODER, RMON statistics disable, one Tx queue */
  619. out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE);
  620. /* SQPTR */
  621. uec->send_q_mem_reg_offset = qe_muram_alloc(
  622. sizeof(uec_send_queue_qd_t),
  623. UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
  624. uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *)
  625. qe_muram_addr(uec->send_q_mem_reg_offset);
  626. out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset);
  627. /* Setup the table with TxBDs ring */
  628. end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1)
  629. * SIZEOFBD;
  630. out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base,
  631. (u32)(uec->p_tx_bd_ring));
  632. out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address,
  633. end_bd);
  634. /* Scheduler Base Pointer, we have only one Tx queue, no need it */
  635. out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0);
  636. /* TxRMON Base Pointer, TxRMON disable, we don't need it */
  637. out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0);
  638. /* TSTATE, global snooping, big endian, the CSB bus selected */
  639. bmrx = BMR_INIT_VALUE;
  640. out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT));
  641. /* IPH_Offset */
  642. for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) {
  643. out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0);
  644. }
  645. /* VTAG table */
  646. for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) {
  647. out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0);
  648. }
  649. /* TQPTR */
  650. uec->thread_dat_tx_offset = qe_muram_alloc(
  651. num_threads_tx * sizeof(uec_thread_data_tx_t) +
  652. 32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT);
  653. uec->p_thread_data_tx = (uec_thread_data_tx_t *)
  654. qe_muram_addr(uec->thread_dat_tx_offset);
  655. out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset);
  656. }
  657. static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx)
  658. {
  659. u8 bmrx = 0;
  660. int i;
  661. uec_82xx_address_filtering_pram_t *p_af_pram;
  662. /* Allocate global Rx parameter RAM page */
  663. uec->rx_glbl_pram_offset = qe_muram_alloc(
  664. sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT);
  665. uec->p_rx_glbl_pram = (uec_rx_global_pram_t *)
  666. qe_muram_addr(uec->rx_glbl_pram_offset);
  667. /* Zero Global Rx parameter RAM */
  668. memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t));
  669. /* Init global Rx parameter RAM */
  670. /* REMODER, Extended feature mode disable, VLAN disable,
  671. LossLess flow control disable, Receive firmware statisic disable,
  672. Extended address parsing mode disable, One Rx queues,
  673. Dynamic maximum/minimum frame length disable, IP checksum check
  674. disable, IP address alignment disable
  675. */
  676. out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE);
  677. /* RQPTR */
  678. uec->thread_dat_rx_offset = qe_muram_alloc(
  679. num_threads_rx * sizeof(uec_thread_data_rx_t),
  680. UEC_THREAD_DATA_ALIGNMENT);
  681. uec->p_thread_data_rx = (uec_thread_data_rx_t *)
  682. qe_muram_addr(uec->thread_dat_rx_offset);
  683. out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset);
  684. /* Type_or_Len */
  685. out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072);
  686. /* RxRMON base pointer, we don't need it */
  687. out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0);
  688. /* IntCoalescingPTR, we don't need it, no interrupt */
  689. out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0);
  690. /* RSTATE, global snooping, big endian, the CSB bus selected */
  691. bmrx = BMR_INIT_VALUE;
  692. out_8(&uec->p_rx_glbl_pram->rstate, bmrx);
  693. /* MRBLR */
  694. out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN);
  695. /* RBDQPTR */
  696. uec->rx_bd_qs_tbl_offset = qe_muram_alloc(
  697. sizeof(uec_rx_bd_queues_entry_t) + \
  698. sizeof(uec_rx_prefetched_bds_t),
  699. UEC_RX_BD_QUEUES_ALIGNMENT);
  700. uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *)
  701. qe_muram_addr(uec->rx_bd_qs_tbl_offset);
  702. /* Zero it */
  703. memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \
  704. sizeof(uec_rx_prefetched_bds_t));
  705. out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset);
  706. out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr,
  707. (u32)uec->p_rx_bd_ring);
  708. /* MFLR */
  709. out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN);
  710. /* MINFLR */
  711. out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN);
  712. /* MAXD1 */
  713. out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN);
  714. /* MAXD2 */
  715. out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN);
  716. /* ECAM_PTR */
  717. out_be32(&uec->p_rx_glbl_pram->ecamptr, 0);
  718. /* L2QT */
  719. out_be32(&uec->p_rx_glbl_pram->l2qt, 0);
  720. /* L3QT */
  721. for (i = 0; i < 8; i++) {
  722. out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0);
  723. }
  724. /* VLAN_TYPE */
  725. out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100);
  726. /* TCI */
  727. out_be16(&uec->p_rx_glbl_pram->vlantci, 0);
  728. /* Clear PQ2 style address filtering hash table */
  729. p_af_pram = (uec_82xx_address_filtering_pram_t *) \
  730. uec->p_rx_glbl_pram->addressfiltering;
  731. p_af_pram->iaddr_h = 0;
  732. p_af_pram->iaddr_l = 0;
  733. p_af_pram->gaddr_h = 0;
  734. p_af_pram->gaddr_l = 0;
  735. }
  736. static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec,
  737. int thread_tx, int thread_rx)
  738. {
  739. uec_init_cmd_pram_t *p_init_enet_param;
  740. u32 init_enet_param_offset;
  741. uec_info_t *uec_info;
  742. int i;
  743. int snum;
  744. u32 init_enet_offset;
  745. u32 entry_val;
  746. u32 command;
  747. u32 cecr_subblock;
  748. uec_info = uec->uec_info;
  749. /* Allocate init enet command parameter */
  750. uec->init_enet_param_offset = qe_muram_alloc(
  751. sizeof(uec_init_cmd_pram_t), 4);
  752. init_enet_param_offset = uec->init_enet_param_offset;
  753. uec->p_init_enet_param = (uec_init_cmd_pram_t *)
  754. qe_muram_addr(uec->init_enet_param_offset);
  755. /* Zero init enet command struct */
  756. memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t));
  757. /* Init the command struct */
  758. p_init_enet_param = uec->p_init_enet_param;
  759. p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0;
  760. p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1;
  761. p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2;
  762. p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3;
  763. p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4;
  764. p_init_enet_param->largestexternallookupkeysize = 0;
  765. p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx)
  766. << ENET_INIT_PARAM_RGF_SHIFT;
  767. p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx)
  768. << ENET_INIT_PARAM_TGF_SHIFT;
  769. /* Init Rx global parameter pointer */
  770. p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset |
  771. (u32)uec_info->risc_rx;
  772. /* Init Rx threads */
  773. for (i = 0; i < (thread_rx + 1); i++) {
  774. if ((snum = qe_get_snum()) < 0) {
  775. printf("%s can not get snum\n", __FUNCTION__);
  776. return -ENOMEM;
  777. }
  778. if (i==0) {
  779. init_enet_offset = 0;
  780. } else {
  781. init_enet_offset = qe_muram_alloc(
  782. sizeof(uec_thread_rx_pram_t),
  783. UEC_THREAD_RX_PRAM_ALIGNMENT);
  784. }
  785. entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
  786. init_enet_offset | (u32)uec_info->risc_rx;
  787. p_init_enet_param->rxthread[i] = entry_val;
  788. }
  789. /* Init Tx global parameter pointer */
  790. p_init_enet_param->txglobal = uec->tx_glbl_pram_offset |
  791. (u32)uec_info->risc_tx;
  792. /* Init Tx threads */
  793. for (i = 0; i < thread_tx; i++) {
  794. if ((snum = qe_get_snum()) < 0) {
  795. printf("%s can not get snum\n", __FUNCTION__);
  796. return -ENOMEM;
  797. }
  798. init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t),
  799. UEC_THREAD_TX_PRAM_ALIGNMENT);
  800. entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
  801. init_enet_offset | (u32)uec_info->risc_tx;
  802. p_init_enet_param->txthread[i] = entry_val;
  803. }
  804. __asm__ __volatile__("sync");
  805. /* Issue QE command */
  806. command = QE_INIT_TX_RX;
  807. cecr_subblock = ucc_fast_get_qe_cr_subblock(
  808. uec->uec_info->uf_info.ucc_num);
  809. qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
  810. init_enet_param_offset);
  811. return 0;
  812. }
  813. static int uec_startup(uec_private_t *uec)
  814. {
  815. uec_info_t *uec_info;
  816. ucc_fast_info_t *uf_info;
  817. ucc_fast_private_t *uccf;
  818. ucc_fast_t *uf_regs;
  819. uec_t *uec_regs;
  820. int num_threads_tx;
  821. int num_threads_rx;
  822. u32 utbipar;
  823. u32 length;
  824. u32 align;
  825. qe_bd_t *bd;
  826. u8 *buf;
  827. int i;
  828. if (!uec || !uec->uec_info) {
  829. printf("%s: uec or uec_info not initial\n", __FUNCTION__);
  830. return -EINVAL;
  831. }
  832. uec_info = uec->uec_info;
  833. uf_info = &(uec_info->uf_info);
  834. /* Check if Rx BD ring len is illegal */
  835. if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \
  836. (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) {
  837. printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n",
  838. __FUNCTION__);
  839. return -EINVAL;
  840. }
  841. /* Check if Tx BD ring len is illegal */
  842. if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) {
  843. printf("%s: Tx BD ring length must not be smaller than 2.\n",
  844. __FUNCTION__);
  845. return -EINVAL;
  846. }
  847. /* Check if MRBLR is illegal */
  848. if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN % UEC_MRBLR_ALIGNMENT)) {
  849. printf("%s: max rx buffer length must be mutliple of 128.\n",
  850. __FUNCTION__);
  851. return -EINVAL;
  852. }
  853. /* Both Rx and Tx are stopped */
  854. uec->grace_stopped_rx = 1;
  855. uec->grace_stopped_tx = 1;
  856. /* Init UCC fast */
  857. if (ucc_fast_init(uf_info, &uccf)) {
  858. printf("%s: failed to init ucc fast\n", __FUNCTION__);
  859. return -ENOMEM;
  860. }
  861. /* Save uccf */
  862. uec->uccf = uccf;
  863. /* Convert the Tx threads number */
  864. if (uec_convert_threads_num(uec_info->num_threads_tx,
  865. &num_threads_tx)) {
  866. return -EINVAL;
  867. }
  868. /* Convert the Rx threads number */
  869. if (uec_convert_threads_num(uec_info->num_threads_rx,
  870. &num_threads_rx)) {
  871. return -EINVAL;
  872. }
  873. uf_regs = uccf->uf_regs;
  874. /* UEC register is following UCC fast registers */
  875. uec_regs = (uec_t *)(&uf_regs->ucc_eth);
  876. /* Save the UEC register pointer to UEC private struct */
  877. uec->uec_regs = uec_regs;
  878. /* Init UPSMR, enable hardware statistics (UCC) */
  879. out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE);
  880. /* Init MACCFG1, flow control disable, disable Tx and Rx */
  881. out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE);
  882. /* Init MACCFG2, length check, MAC PAD and CRC enable */
  883. out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE);
  884. /* Setup MAC interface mode */
  885. uec_set_mac_if_mode(uec, uec_info->enet_interface_type, uec_info->speed);
  886. /* Setup MII management base */
  887. #ifndef CONFIG_eTSEC_MDIO_BUS
  888. uec->uec_mii_regs = (uec_mii_t *)(&uec_regs->miimcfg);
  889. #else
  890. uec->uec_mii_regs = (uec_mii_t *) CONFIG_MIIM_ADDRESS;
  891. #endif
  892. /* Setup MII master clock source */
  893. qe_set_mii_clk_src(uec_info->uf_info.ucc_num);
  894. /* Setup UTBIPAR */
  895. utbipar = in_be32(&uec_regs->utbipar);
  896. utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
  897. /* Initialize UTBIPAR address to CONFIG_UTBIPAR_INIT_TBIPA for ALL UEC.
  898. * This frees up the remaining SMI addresses for use.
  899. */
  900. utbipar |= CONFIG_UTBIPAR_INIT_TBIPA << UTBIPAR_PHY_ADDRESS_SHIFT;
  901. out_be32(&uec_regs->utbipar, utbipar);
  902. /* Configure the TBI for SGMII operation */
  903. if ((uec->uec_info->enet_interface_type == PHY_INTERFACE_MODE_SGMII) &&
  904. (uec->uec_info->speed == SPEED_1000)) {
  905. uec_write_phy_reg(uec->dev, uec_regs->utbipar,
  906. ENET_TBI_MII_ANA, TBIANA_SETTINGS);
  907. uec_write_phy_reg(uec->dev, uec_regs->utbipar,
  908. ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
  909. uec_write_phy_reg(uec->dev, uec_regs->utbipar,
  910. ENET_TBI_MII_CR, TBICR_SETTINGS);
  911. }
  912. /* Allocate Tx BDs */
  913. length = ((uec_info->tx_bd_ring_len * SIZEOFBD) /
  914. UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) *
  915. UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
  916. if ((uec_info->tx_bd_ring_len * SIZEOFBD) %
  917. UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) {
  918. length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
  919. }
  920. align = UEC_TX_BD_RING_ALIGNMENT;
  921. uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align));
  922. if (uec->tx_bd_ring_offset != 0) {
  923. uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align)
  924. & ~(align - 1));
  925. }
  926. /* Zero all of Tx BDs */
  927. memset((void *)(uec->tx_bd_ring_offset), 0, length + align);
  928. /* Allocate Rx BDs */
  929. length = uec_info->rx_bd_ring_len * SIZEOFBD;
  930. align = UEC_RX_BD_RING_ALIGNMENT;
  931. uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align)));
  932. if (uec->rx_bd_ring_offset != 0) {
  933. uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align)
  934. & ~(align - 1));
  935. }
  936. /* Zero all of Rx BDs */
  937. memset((void *)(uec->rx_bd_ring_offset), 0, length + align);
  938. /* Allocate Rx buffer */
  939. length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN;
  940. align = UEC_RX_DATA_BUF_ALIGNMENT;
  941. uec->rx_buf_offset = (u32)malloc(length + align);
  942. if (uec->rx_buf_offset != 0) {
  943. uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align)
  944. & ~(align - 1));
  945. }
  946. /* Zero all of the Rx buffer */
  947. memset((void *)(uec->rx_buf_offset), 0, length + align);
  948. /* Init TxBD ring */
  949. bd = (qe_bd_t *)uec->p_tx_bd_ring;
  950. uec->txBd = bd;
  951. for (i = 0; i < uec_info->tx_bd_ring_len; i++) {
  952. BD_DATA_CLEAR(bd);
  953. BD_STATUS_SET(bd, 0);
  954. BD_LENGTH_SET(bd, 0);
  955. bd ++;
  956. }
  957. BD_STATUS_SET((--bd), TxBD_WRAP);
  958. /* Init RxBD ring */
  959. bd = (qe_bd_t *)uec->p_rx_bd_ring;
  960. uec->rxBd = bd;
  961. buf = uec->p_rx_buf;
  962. for (i = 0; i < uec_info->rx_bd_ring_len; i++) {
  963. BD_DATA_SET(bd, buf);
  964. BD_LENGTH_SET(bd, 0);
  965. BD_STATUS_SET(bd, RxBD_EMPTY);
  966. buf += MAX_RXBUF_LEN;
  967. bd ++;
  968. }
  969. BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY);
  970. /* Init global Tx parameter RAM */
  971. uec_init_tx_parameter(uec, num_threads_tx);
  972. /* Init global Rx parameter RAM */
  973. uec_init_rx_parameter(uec, num_threads_rx);
  974. /* Init ethernet Tx and Rx parameter command */
  975. if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx,
  976. num_threads_rx)) {
  977. printf("%s issue init enet cmd failed\n", __FUNCTION__);
  978. return -ENOMEM;
  979. }
  980. return 0;
  981. }
  982. static int uec_init(struct eth_device* dev, bd_t *bd)
  983. {
  984. uec_private_t *uec;
  985. int err, i;
  986. struct phy_info *curphy;
  987. #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
  988. ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  989. #endif
  990. uec = (uec_private_t *)dev->priv;
  991. if (uec->the_first_run == 0) {
  992. #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
  993. /* QE9 and QE12 need to be set for enabling QE MII managment signals */
  994. setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE9);
  995. setbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
  996. #endif
  997. err = init_phy(dev);
  998. if (err) {
  999. printf("%s: Cannot initialize PHY, aborting.\n",
  1000. dev->name);
  1001. return err;
  1002. }
  1003. curphy = uec->mii_info->phyinfo;
  1004. if (curphy->config_aneg) {
  1005. err = curphy->config_aneg(uec->mii_info);
  1006. if (err) {
  1007. printf("%s: Can't negotiate PHY\n", dev->name);
  1008. return err;
  1009. }
  1010. }
  1011. /* Give PHYs up to 5 sec to report a link */
  1012. i = 50;
  1013. do {
  1014. err = curphy->read_status(uec->mii_info);
  1015. if (!(((i-- > 0) && !uec->mii_info->link) || err))
  1016. break;
  1017. udelay(100000);
  1018. } while (1);
  1019. #if defined(CONFIG_ARCH_P1021) || defined(CONFIG_ARCH_P1025)
  1020. /* QE12 needs to be released for enabling LBCTL signal*/
  1021. clrbits_be32(&gur->pmuxcr, MPC85xx_PMUXCR_QE12);
  1022. #endif
  1023. if (err || i <= 0)
  1024. printf("warning: %s: timeout on PHY link\n", dev->name);
  1025. adjust_link(dev);
  1026. uec->the_first_run = 1;
  1027. }
  1028. /* Set up the MAC address */
  1029. if (dev->enetaddr[0] & 0x01) {
  1030. printf("%s: MacAddress is multcast address\n",
  1031. __FUNCTION__);
  1032. return -1;
  1033. }
  1034. uec_set_mac_address(uec, dev->enetaddr);
  1035. err = uec_open(uec, COMM_DIR_RX_AND_TX);
  1036. if (err) {
  1037. printf("%s: cannot enable UEC device\n", dev->name);
  1038. return -1;
  1039. }
  1040. phy_change(dev);
  1041. return (uec->mii_info->link ? 0 : -1);
  1042. }
  1043. static void uec_halt(struct eth_device* dev)
  1044. {
  1045. uec_private_t *uec = (uec_private_t *)dev->priv;
  1046. uec_stop(uec, COMM_DIR_RX_AND_TX);
  1047. }
  1048. static int uec_send(struct eth_device *dev, void *buf, int len)
  1049. {
  1050. uec_private_t *uec;
  1051. ucc_fast_private_t *uccf;
  1052. volatile qe_bd_t *bd;
  1053. u16 status;
  1054. int i;
  1055. int result = 0;
  1056. uec = (uec_private_t *)dev->priv;
  1057. uccf = uec->uccf;
  1058. bd = uec->txBd;
  1059. /* Find an empty TxBD */
  1060. for (i = 0; bd->status & TxBD_READY; i++) {
  1061. if (i > 0x100000) {
  1062. printf("%s: tx buffer not ready\n", dev->name);
  1063. return result;
  1064. }
  1065. }
  1066. /* Init TxBD */
  1067. BD_DATA_SET(bd, buf);
  1068. BD_LENGTH_SET(bd, len);
  1069. status = bd->status;
  1070. status &= BD_WRAP;
  1071. status |= (TxBD_READY | TxBD_LAST);
  1072. BD_STATUS_SET(bd, status);
  1073. /* Tell UCC to transmit the buffer */
  1074. ucc_fast_transmit_on_demand(uccf);
  1075. /* Wait for buffer to be transmitted */
  1076. for (i = 0; bd->status & TxBD_READY; i++) {
  1077. if (i > 0x100000) {
  1078. printf("%s: tx error\n", dev->name);
  1079. return result;
  1080. }
  1081. }
  1082. /* Ok, the buffer be transimitted */
  1083. BD_ADVANCE(bd, status, uec->p_tx_bd_ring);
  1084. uec->txBd = bd;
  1085. result = 1;
  1086. return result;
  1087. }
  1088. static int uec_recv(struct eth_device* dev)
  1089. {
  1090. uec_private_t *uec = dev->priv;
  1091. volatile qe_bd_t *bd;
  1092. u16 status;
  1093. u16 len;
  1094. u8 *data;
  1095. bd = uec->rxBd;
  1096. status = bd->status;
  1097. while (!(status & RxBD_EMPTY)) {
  1098. if (!(status & RxBD_ERROR)) {
  1099. data = BD_DATA(bd);
  1100. len = BD_LENGTH(bd);
  1101. net_process_received_packet(data, len);
  1102. } else {
  1103. printf("%s: Rx error\n", dev->name);
  1104. }
  1105. status &= BD_CLEAN;
  1106. BD_LENGTH_SET(bd, 0);
  1107. BD_STATUS_SET(bd, status | RxBD_EMPTY);
  1108. BD_ADVANCE(bd, status, uec->p_rx_bd_ring);
  1109. status = bd->status;
  1110. }
  1111. uec->rxBd = bd;
  1112. return 1;
  1113. }
  1114. int uec_initialize(bd_t *bis, uec_info_t *uec_info)
  1115. {
  1116. struct eth_device *dev;
  1117. int i;
  1118. uec_private_t *uec;
  1119. int err;
  1120. dev = (struct eth_device *)malloc(sizeof(struct eth_device));
  1121. if (!dev)
  1122. return 0;
  1123. memset(dev, 0, sizeof(struct eth_device));
  1124. /* Allocate the UEC private struct */
  1125. uec = (uec_private_t *)malloc(sizeof(uec_private_t));
  1126. if (!uec) {
  1127. return -ENOMEM;
  1128. }
  1129. memset(uec, 0, sizeof(uec_private_t));
  1130. /* Adjust uec_info */
  1131. #if (MAX_QE_RISC == 4)
  1132. uec_info->risc_tx = QE_RISC_ALLOCATION_FOUR_RISCS;
  1133. uec_info->risc_rx = QE_RISC_ALLOCATION_FOUR_RISCS;
  1134. #endif
  1135. devlist[uec_info->uf_info.ucc_num] = dev;
  1136. uec->uec_info = uec_info;
  1137. uec->dev = dev;
  1138. sprintf(dev->name, "UEC%d", uec_info->uf_info.ucc_num);
  1139. dev->iobase = 0;
  1140. dev->priv = (void *)uec;
  1141. dev->init = uec_init;
  1142. dev->halt = uec_halt;
  1143. dev->send = uec_send;
  1144. dev->recv = uec_recv;
  1145. /* Clear the ethnet address */
  1146. for (i = 0; i < 6; i++)
  1147. dev->enetaddr[i] = 0;
  1148. eth_register(dev);
  1149. err = uec_startup(uec);
  1150. if (err) {
  1151. printf("%s: Cannot configure net device, aborting.",dev->name);
  1152. return err;
  1153. }
  1154. #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
  1155. int retval;
  1156. struct mii_dev *mdiodev = mdio_alloc();
  1157. if (!mdiodev)
  1158. return -ENOMEM;
  1159. strncpy(mdiodev->name, dev->name, MDIO_NAME_LEN);
  1160. mdiodev->read = uec_miiphy_read;
  1161. mdiodev->write = uec_miiphy_write;
  1162. retval = mdio_register(mdiodev);
  1163. if (retval < 0)
  1164. return retval;
  1165. #endif
  1166. return 1;
  1167. }
  1168. int uec_eth_init(bd_t *bis, uec_info_t *uecs, int num)
  1169. {
  1170. int i;
  1171. for (i = 0; i < num; i++)
  1172. uec_initialize(bis, &uecs[i]);
  1173. return 0;
  1174. }
  1175. int uec_standard_init(bd_t *bis)
  1176. {
  1177. return uec_eth_init(bis, uec_info, ARRAY_SIZE(uec_info));
  1178. }