uec.c 34 KB

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  1. /*
  2. * Copyright (C) 2006 Freescale Semiconductor, Inc.
  3. *
  4. * Dave Liu <daveliu@freescale.com>
  5. *
  6. * This program is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU General Public License as
  8. * published by the Free Software Foundation; either version 2 of
  9. * the License, or (at your option) any later version.
  10. *
  11. * This program is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU General Public License
  17. * along with this program; if not, write to the Free Software
  18. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19. * MA 02111-1307 USA
  20. */
  21. #include "common.h"
  22. #include "net.h"
  23. #include "malloc.h"
  24. #include "asm/errno.h"
  25. #include "asm/io.h"
  26. #include "asm/immap_qe.h"
  27. #include "qe.h"
  28. #include "uccf.h"
  29. #include "uec.h"
  30. #include "uec_phy.h"
  31. #include "miiphy.h"
  32. #if defined(CONFIG_QE)
  33. #ifdef CONFIG_UEC_ETH1
  34. static uec_info_t eth1_uec_info = {
  35. .uf_info = {
  36. .ucc_num = CFG_UEC1_UCC_NUM,
  37. .rx_clock = CFG_UEC1_RX_CLK,
  38. .tx_clock = CFG_UEC1_TX_CLK,
  39. .eth_type = CFG_UEC1_ETH_TYPE,
  40. },
  41. #if (CFG_UEC1_ETH_TYPE == FAST_ETH)
  42. .num_threads_tx = UEC_NUM_OF_THREADS_1,
  43. .num_threads_rx = UEC_NUM_OF_THREADS_1,
  44. #else
  45. .num_threads_tx = UEC_NUM_OF_THREADS_4,
  46. .num_threads_rx = UEC_NUM_OF_THREADS_4,
  47. #endif
  48. .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  49. .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  50. .tx_bd_ring_len = 16,
  51. .rx_bd_ring_len = 16,
  52. .phy_address = CFG_UEC1_PHY_ADDR,
  53. .enet_interface = CFG_UEC1_INTERFACE_MODE,
  54. };
  55. #endif
  56. #ifdef CONFIG_UEC_ETH2
  57. static uec_info_t eth2_uec_info = {
  58. .uf_info = {
  59. .ucc_num = CFG_UEC2_UCC_NUM,
  60. .rx_clock = CFG_UEC2_RX_CLK,
  61. .tx_clock = CFG_UEC2_TX_CLK,
  62. .eth_type = CFG_UEC2_ETH_TYPE,
  63. },
  64. #if (CFG_UEC2_ETH_TYPE == FAST_ETH)
  65. .num_threads_tx = UEC_NUM_OF_THREADS_1,
  66. .num_threads_rx = UEC_NUM_OF_THREADS_1,
  67. #else
  68. .num_threads_tx = UEC_NUM_OF_THREADS_4,
  69. .num_threads_rx = UEC_NUM_OF_THREADS_4,
  70. #endif
  71. .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  72. .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  73. .tx_bd_ring_len = 16,
  74. .rx_bd_ring_len = 16,
  75. .phy_address = CFG_UEC2_PHY_ADDR,
  76. .enet_interface = CFG_UEC2_INTERFACE_MODE,
  77. };
  78. #endif
  79. #ifdef CONFIG_UEC_ETH3
  80. static uec_info_t eth3_uec_info = {
  81. .uf_info = {
  82. .ucc_num = CFG_UEC3_UCC_NUM,
  83. .rx_clock = CFG_UEC3_RX_CLK,
  84. .tx_clock = CFG_UEC3_TX_CLK,
  85. .eth_type = CFG_UEC3_ETH_TYPE,
  86. },
  87. #if (CFG_UEC3_ETH_TYPE == FAST_ETH)
  88. .num_threads_tx = UEC_NUM_OF_THREADS_1,
  89. .num_threads_rx = UEC_NUM_OF_THREADS_1,
  90. #else
  91. .num_threads_tx = UEC_NUM_OF_THREADS_4,
  92. .num_threads_rx = UEC_NUM_OF_THREADS_4,
  93. #endif
  94. .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  95. .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  96. .tx_bd_ring_len = 16,
  97. .rx_bd_ring_len = 16,
  98. .phy_address = CFG_UEC3_PHY_ADDR,
  99. .enet_interface = CFG_UEC3_INTERFACE_MODE,
  100. };
  101. #endif
  102. #ifdef CONFIG_UEC_ETH4
  103. static uec_info_t eth4_uec_info = {
  104. .uf_info = {
  105. .ucc_num = CFG_UEC4_UCC_NUM,
  106. .rx_clock = CFG_UEC4_RX_CLK,
  107. .tx_clock = CFG_UEC4_TX_CLK,
  108. .eth_type = CFG_UEC4_ETH_TYPE,
  109. },
  110. #if (CFG_UEC4_ETH_TYPE == FAST_ETH)
  111. .num_threads_tx = UEC_NUM_OF_THREADS_1,
  112. .num_threads_rx = UEC_NUM_OF_THREADS_1,
  113. #else
  114. .num_threads_tx = UEC_NUM_OF_THREADS_4,
  115. .num_threads_rx = UEC_NUM_OF_THREADS_4,
  116. #endif
  117. .riscTx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  118. .riscRx = QE_RISC_ALLOCATION_RISC1_AND_RISC2,
  119. .tx_bd_ring_len = 16,
  120. .rx_bd_ring_len = 16,
  121. .phy_address = CFG_UEC4_PHY_ADDR,
  122. .enet_interface = CFG_UEC4_INTERFACE_MODE,
  123. };
  124. #endif
  125. #define MAXCONTROLLERS (4)
  126. static struct eth_device *devlist[MAXCONTROLLERS];
  127. u16 phy_read (struct uec_mii_info *mii_info, u16 regnum);
  128. void phy_write (struct uec_mii_info *mii_info, u16 regnum, u16 val);
  129. static int uec_mac_enable(uec_private_t *uec, comm_dir_e mode)
  130. {
  131. uec_t *uec_regs;
  132. u32 maccfg1;
  133. if (!uec) {
  134. printf("%s: uec not initial\n", __FUNCTION__);
  135. return -EINVAL;
  136. }
  137. uec_regs = uec->uec_regs;
  138. maccfg1 = in_be32(&uec_regs->maccfg1);
  139. if (mode & COMM_DIR_TX) {
  140. maccfg1 |= MACCFG1_ENABLE_TX;
  141. out_be32(&uec_regs->maccfg1, maccfg1);
  142. uec->mac_tx_enabled = 1;
  143. }
  144. if (mode & COMM_DIR_RX) {
  145. maccfg1 |= MACCFG1_ENABLE_RX;
  146. out_be32(&uec_regs->maccfg1, maccfg1);
  147. uec->mac_rx_enabled = 1;
  148. }
  149. return 0;
  150. }
  151. static int uec_mac_disable(uec_private_t *uec, comm_dir_e mode)
  152. {
  153. uec_t *uec_regs;
  154. u32 maccfg1;
  155. if (!uec) {
  156. printf("%s: uec not initial\n", __FUNCTION__);
  157. return -EINVAL;
  158. }
  159. uec_regs = uec->uec_regs;
  160. maccfg1 = in_be32(&uec_regs->maccfg1);
  161. if (mode & COMM_DIR_TX) {
  162. maccfg1 &= ~MACCFG1_ENABLE_TX;
  163. out_be32(&uec_regs->maccfg1, maccfg1);
  164. uec->mac_tx_enabled = 0;
  165. }
  166. if (mode & COMM_DIR_RX) {
  167. maccfg1 &= ~MACCFG1_ENABLE_RX;
  168. out_be32(&uec_regs->maccfg1, maccfg1);
  169. uec->mac_rx_enabled = 0;
  170. }
  171. return 0;
  172. }
  173. static int uec_graceful_stop_tx(uec_private_t *uec)
  174. {
  175. ucc_fast_t *uf_regs;
  176. u32 cecr_subblock;
  177. u32 ucce;
  178. if (!uec || !uec->uccf) {
  179. printf("%s: No handle passed.\n", __FUNCTION__);
  180. return -EINVAL;
  181. }
  182. uf_regs = uec->uccf->uf_regs;
  183. /* Clear the grace stop event */
  184. out_be32(&uf_regs->ucce, UCCE_GRA);
  185. /* Issue host command */
  186. cecr_subblock =
  187. ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
  188. qe_issue_cmd(QE_GRACEFUL_STOP_TX, cecr_subblock,
  189. (u8)QE_CR_PROTOCOL_ETHERNET, 0);
  190. /* Wait for command to complete */
  191. do {
  192. ucce = in_be32(&uf_regs->ucce);
  193. } while (! (ucce & UCCE_GRA));
  194. uec->grace_stopped_tx = 1;
  195. return 0;
  196. }
  197. static int uec_graceful_stop_rx(uec_private_t *uec)
  198. {
  199. u32 cecr_subblock;
  200. u8 ack;
  201. if (!uec) {
  202. printf("%s: No handle passed.\n", __FUNCTION__);
  203. return -EINVAL;
  204. }
  205. if (!uec->p_rx_glbl_pram) {
  206. printf("%s: No init rx global parameter\n", __FUNCTION__);
  207. return -EINVAL;
  208. }
  209. /* Clear acknowledge bit */
  210. ack = uec->p_rx_glbl_pram->rxgstpack;
  211. ack &= ~GRACEFUL_STOP_ACKNOWLEDGE_RX;
  212. uec->p_rx_glbl_pram->rxgstpack = ack;
  213. /* Keep issuing cmd and checking ack bit until it is asserted */
  214. do {
  215. /* Issue host command */
  216. cecr_subblock =
  217. ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
  218. qe_issue_cmd(QE_GRACEFUL_STOP_RX, cecr_subblock,
  219. (u8)QE_CR_PROTOCOL_ETHERNET, 0);
  220. ack = uec->p_rx_glbl_pram->rxgstpack;
  221. } while (! (ack & GRACEFUL_STOP_ACKNOWLEDGE_RX ));
  222. uec->grace_stopped_rx = 1;
  223. return 0;
  224. }
  225. static int uec_restart_tx(uec_private_t *uec)
  226. {
  227. u32 cecr_subblock;
  228. if (!uec || !uec->uec_info) {
  229. printf("%s: No handle passed.\n", __FUNCTION__);
  230. return -EINVAL;
  231. }
  232. cecr_subblock =
  233. ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
  234. qe_issue_cmd(QE_RESTART_TX, cecr_subblock,
  235. (u8)QE_CR_PROTOCOL_ETHERNET, 0);
  236. uec->grace_stopped_tx = 0;
  237. return 0;
  238. }
  239. static int uec_restart_rx(uec_private_t *uec)
  240. {
  241. u32 cecr_subblock;
  242. if (!uec || !uec->uec_info) {
  243. printf("%s: No handle passed.\n", __FUNCTION__);
  244. return -EINVAL;
  245. }
  246. cecr_subblock =
  247. ucc_fast_get_qe_cr_subblock(uec->uec_info->uf_info.ucc_num);
  248. qe_issue_cmd(QE_RESTART_RX, cecr_subblock,
  249. (u8)QE_CR_PROTOCOL_ETHERNET, 0);
  250. uec->grace_stopped_rx = 0;
  251. return 0;
  252. }
  253. static int uec_open(uec_private_t *uec, comm_dir_e mode)
  254. {
  255. ucc_fast_private_t *uccf;
  256. if (!uec || !uec->uccf) {
  257. printf("%s: No handle passed.\n", __FUNCTION__);
  258. return -EINVAL;
  259. }
  260. uccf = uec->uccf;
  261. /* check if the UCC number is in range. */
  262. if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
  263. printf("%s: ucc_num out of range.\n", __FUNCTION__);
  264. return -EINVAL;
  265. }
  266. /* Enable MAC */
  267. uec_mac_enable(uec, mode);
  268. /* Enable UCC fast */
  269. ucc_fast_enable(uccf, mode);
  270. /* RISC microcode start */
  271. if ((mode & COMM_DIR_TX) && uec->grace_stopped_tx) {
  272. uec_restart_tx(uec);
  273. }
  274. if ((mode & COMM_DIR_RX) && uec->grace_stopped_rx) {
  275. uec_restart_rx(uec);
  276. }
  277. return 0;
  278. }
  279. static int uec_stop(uec_private_t *uec, comm_dir_e mode)
  280. {
  281. ucc_fast_private_t *uccf;
  282. if (!uec || !uec->uccf) {
  283. printf("%s: No handle passed.\n", __FUNCTION__);
  284. return -EINVAL;
  285. }
  286. uccf = uec->uccf;
  287. /* check if the UCC number is in range. */
  288. if (uec->uec_info->uf_info.ucc_num >= UCC_MAX_NUM) {
  289. printf("%s: ucc_num out of range.\n", __FUNCTION__);
  290. return -EINVAL;
  291. }
  292. /* Stop any transmissions */
  293. if ((mode & COMM_DIR_TX) && !uec->grace_stopped_tx) {
  294. uec_graceful_stop_tx(uec);
  295. }
  296. /* Stop any receptions */
  297. if ((mode & COMM_DIR_RX) && !uec->grace_stopped_rx) {
  298. uec_graceful_stop_rx(uec);
  299. }
  300. /* Disable the UCC fast */
  301. ucc_fast_disable(uec->uccf, mode);
  302. /* Disable the MAC */
  303. uec_mac_disable(uec, mode);
  304. return 0;
  305. }
  306. static int uec_set_mac_duplex(uec_private_t *uec, int duplex)
  307. {
  308. uec_t *uec_regs;
  309. u32 maccfg2;
  310. if (!uec) {
  311. printf("%s: uec not initial\n", __FUNCTION__);
  312. return -EINVAL;
  313. }
  314. uec_regs = uec->uec_regs;
  315. if (duplex == DUPLEX_HALF) {
  316. maccfg2 = in_be32(&uec_regs->maccfg2);
  317. maccfg2 &= ~MACCFG2_FDX;
  318. out_be32(&uec_regs->maccfg2, maccfg2);
  319. }
  320. if (duplex == DUPLEX_FULL) {
  321. maccfg2 = in_be32(&uec_regs->maccfg2);
  322. maccfg2 |= MACCFG2_FDX;
  323. out_be32(&uec_regs->maccfg2, maccfg2);
  324. }
  325. return 0;
  326. }
  327. static int uec_set_mac_if_mode(uec_private_t *uec, enet_interface_e if_mode)
  328. {
  329. enet_interface_e enet_if_mode;
  330. uec_info_t *uec_info;
  331. uec_t *uec_regs;
  332. u32 upsmr;
  333. u32 maccfg2;
  334. if (!uec) {
  335. printf("%s: uec not initial\n", __FUNCTION__);
  336. return -EINVAL;
  337. }
  338. uec_info = uec->uec_info;
  339. uec_regs = uec->uec_regs;
  340. enet_if_mode = if_mode;
  341. maccfg2 = in_be32(&uec_regs->maccfg2);
  342. maccfg2 &= ~MACCFG2_INTERFACE_MODE_MASK;
  343. upsmr = in_be32(&uec->uccf->uf_regs->upsmr);
  344. upsmr &= ~(UPSMR_RPM | UPSMR_TBIM | UPSMR_R10M | UPSMR_RMM);
  345. switch (enet_if_mode) {
  346. case ENET_100_MII:
  347. case ENET_10_MII:
  348. maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
  349. break;
  350. case ENET_1000_GMII:
  351. maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
  352. break;
  353. case ENET_1000_TBI:
  354. maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
  355. upsmr |= UPSMR_TBIM;
  356. break;
  357. case ENET_1000_RTBI:
  358. maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
  359. upsmr |= (UPSMR_RPM | UPSMR_TBIM);
  360. break;
  361. case ENET_1000_RGMII_RXID:
  362. case ENET_1000_RGMII:
  363. maccfg2 |= MACCFG2_INTERFACE_MODE_BYTE;
  364. upsmr |= UPSMR_RPM;
  365. break;
  366. case ENET_100_RGMII:
  367. maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
  368. upsmr |= UPSMR_RPM;
  369. break;
  370. case ENET_10_RGMII:
  371. maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
  372. upsmr |= (UPSMR_RPM | UPSMR_R10M);
  373. break;
  374. case ENET_100_RMII:
  375. maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
  376. upsmr |= UPSMR_RMM;
  377. break;
  378. case ENET_10_RMII:
  379. maccfg2 |= MACCFG2_INTERFACE_MODE_NIBBLE;
  380. upsmr |= (UPSMR_R10M | UPSMR_RMM);
  381. break;
  382. default:
  383. return -EINVAL;
  384. break;
  385. }
  386. out_be32(&uec_regs->maccfg2, maccfg2);
  387. out_be32(&uec->uccf->uf_regs->upsmr, upsmr);
  388. return 0;
  389. }
  390. static int init_mii_management_configuration(uec_mii_t *uec_mii_regs)
  391. {
  392. uint timeout = 0x1000;
  393. u32 miimcfg = 0;
  394. miimcfg = in_be32(&uec_mii_regs->miimcfg);
  395. miimcfg |= MIIMCFG_MNGMNT_CLC_DIV_INIT_VALUE;
  396. out_be32(&uec_mii_regs->miimcfg, miimcfg);
  397. /* Wait until the bus is free */
  398. while ((in_be32(&uec_mii_regs->miimcfg) & MIIMIND_BUSY) && timeout--);
  399. if (timeout <= 0) {
  400. printf("%s: The MII Bus is stuck!", __FUNCTION__);
  401. return -ETIMEDOUT;
  402. }
  403. return 0;
  404. }
  405. static int init_phy(struct eth_device *dev)
  406. {
  407. uec_private_t *uec;
  408. uec_mii_t *umii_regs;
  409. struct uec_mii_info *mii_info;
  410. struct phy_info *curphy;
  411. int err;
  412. uec = (uec_private_t *)dev->priv;
  413. umii_regs = uec->uec_mii_regs;
  414. uec->oldlink = 0;
  415. uec->oldspeed = 0;
  416. uec->oldduplex = -1;
  417. mii_info = malloc(sizeof(*mii_info));
  418. if (!mii_info) {
  419. printf("%s: Could not allocate mii_info", dev->name);
  420. return -ENOMEM;
  421. }
  422. memset(mii_info, 0, sizeof(*mii_info));
  423. if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
  424. mii_info->speed = SPEED_1000;
  425. } else {
  426. mii_info->speed = SPEED_100;
  427. }
  428. mii_info->duplex = DUPLEX_FULL;
  429. mii_info->pause = 0;
  430. mii_info->link = 1;
  431. mii_info->advertising = (ADVERTISED_10baseT_Half |
  432. ADVERTISED_10baseT_Full |
  433. ADVERTISED_100baseT_Half |
  434. ADVERTISED_100baseT_Full |
  435. ADVERTISED_1000baseT_Full);
  436. mii_info->autoneg = 1;
  437. mii_info->mii_id = uec->uec_info->phy_address;
  438. mii_info->dev = dev;
  439. mii_info->mdio_read = &uec_read_phy_reg;
  440. mii_info->mdio_write = &uec_write_phy_reg;
  441. uec->mii_info = mii_info;
  442. qe_set_mii_clk_src(uec->uec_info->uf_info.ucc_num);
  443. if (init_mii_management_configuration(umii_regs)) {
  444. printf("%s: The MII Bus is stuck!", dev->name);
  445. err = -1;
  446. goto bus_fail;
  447. }
  448. /* get info for this PHY */
  449. curphy = uec_get_phy_info(uec->mii_info);
  450. if (!curphy) {
  451. printf("%s: No PHY found", dev->name);
  452. err = -1;
  453. goto no_phy;
  454. }
  455. mii_info->phyinfo = curphy;
  456. /* Run the commands which initialize the PHY */
  457. if (curphy->init) {
  458. err = curphy->init(uec->mii_info);
  459. if (err)
  460. goto phy_init_fail;
  461. }
  462. return 0;
  463. phy_init_fail:
  464. no_phy:
  465. bus_fail:
  466. free(mii_info);
  467. return err;
  468. }
  469. static void adjust_link(struct eth_device *dev)
  470. {
  471. uec_private_t *uec = (uec_private_t *)dev->priv;
  472. uec_t *uec_regs;
  473. struct uec_mii_info *mii_info = uec->mii_info;
  474. extern void change_phy_interface_mode(struct eth_device *dev,
  475. enet_interface_e mode);
  476. uec_regs = uec->uec_regs;
  477. if (mii_info->link) {
  478. /* Now we make sure that we can be in full duplex mode.
  479. * If not, we operate in half-duplex mode. */
  480. if (mii_info->duplex != uec->oldduplex) {
  481. if (!(mii_info->duplex)) {
  482. uec_set_mac_duplex(uec, DUPLEX_HALF);
  483. printf("%s: Half Duplex\n", dev->name);
  484. } else {
  485. uec_set_mac_duplex(uec, DUPLEX_FULL);
  486. printf("%s: Full Duplex\n", dev->name);
  487. }
  488. uec->oldduplex = mii_info->duplex;
  489. }
  490. if (mii_info->speed != uec->oldspeed) {
  491. if (uec->uec_info->uf_info.eth_type == GIGA_ETH) {
  492. switch (mii_info->speed) {
  493. case 1000:
  494. break;
  495. case 100:
  496. printf ("switching to rgmii 100\n");
  497. /* change phy to rgmii 100 */
  498. change_phy_interface_mode(dev,
  499. ENET_100_RGMII);
  500. /* change the MAC interface mode */
  501. uec_set_mac_if_mode(uec,ENET_100_RGMII);
  502. break;
  503. case 10:
  504. printf ("switching to rgmii 10\n");
  505. /* change phy to rgmii 10 */
  506. change_phy_interface_mode(dev,
  507. ENET_10_RGMII);
  508. /* change the MAC interface mode */
  509. uec_set_mac_if_mode(uec,ENET_10_RGMII);
  510. break;
  511. default:
  512. printf("%s: Ack,Speed(%d)is illegal\n",
  513. dev->name, mii_info->speed);
  514. break;
  515. }
  516. }
  517. printf("%s: Speed %dBT\n", dev->name, mii_info->speed);
  518. uec->oldspeed = mii_info->speed;
  519. }
  520. if (!uec->oldlink) {
  521. printf("%s: Link is up\n", dev->name);
  522. uec->oldlink = 1;
  523. }
  524. } else { /* if (mii_info->link) */
  525. if (uec->oldlink) {
  526. printf("%s: Link is down\n", dev->name);
  527. uec->oldlink = 0;
  528. uec->oldspeed = 0;
  529. uec->oldduplex = -1;
  530. }
  531. }
  532. }
  533. static void phy_change(struct eth_device *dev)
  534. {
  535. uec_private_t *uec = (uec_private_t *)dev->priv;
  536. /* Update the link, speed, duplex */
  537. uec->mii_info->phyinfo->read_status(uec->mii_info);
  538. /* Adjust the interface according to speed */
  539. adjust_link(dev);
  540. }
  541. #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
  542. && !defined(BITBANGMII)
  543. /*
  544. * Read a MII PHY register.
  545. *
  546. * Returns:
  547. * 0 on success
  548. */
  549. static int uec_miiphy_read(char *devname, unsigned char addr,
  550. unsigned char reg, unsigned short *value)
  551. {
  552. *value = uec_read_phy_reg(devlist[0], addr, reg);
  553. return 0;
  554. }
  555. /*
  556. * Write a MII PHY register.
  557. *
  558. * Returns:
  559. * 0 on success
  560. */
  561. static int uec_miiphy_write(char *devname, unsigned char addr,
  562. unsigned char reg, unsigned short value)
  563. {
  564. uec_write_phy_reg(devlist[0], addr, reg, value);
  565. return 0;
  566. }
  567. #endif
  568. static int uec_set_mac_address(uec_private_t *uec, u8 *mac_addr)
  569. {
  570. uec_t *uec_regs;
  571. u32 mac_addr1;
  572. u32 mac_addr2;
  573. if (!uec) {
  574. printf("%s: uec not initial\n", __FUNCTION__);
  575. return -EINVAL;
  576. }
  577. uec_regs = uec->uec_regs;
  578. /* if a station address of 0x12345678ABCD, perform a write to
  579. MACSTNADDR1 of 0xCDAB7856,
  580. MACSTNADDR2 of 0x34120000 */
  581. mac_addr1 = (mac_addr[5] << 24) | (mac_addr[4] << 16) | \
  582. (mac_addr[3] << 8) | (mac_addr[2]);
  583. out_be32(&uec_regs->macstnaddr1, mac_addr1);
  584. mac_addr2 = ((mac_addr[1] << 24) | (mac_addr[0] << 16)) & 0xffff0000;
  585. out_be32(&uec_regs->macstnaddr2, mac_addr2);
  586. return 0;
  587. }
  588. static int uec_convert_threads_num(uec_num_of_threads_e threads_num,
  589. int *threads_num_ret)
  590. {
  591. int num_threads_numerica;
  592. switch (threads_num) {
  593. case UEC_NUM_OF_THREADS_1:
  594. num_threads_numerica = 1;
  595. break;
  596. case UEC_NUM_OF_THREADS_2:
  597. num_threads_numerica = 2;
  598. break;
  599. case UEC_NUM_OF_THREADS_4:
  600. num_threads_numerica = 4;
  601. break;
  602. case UEC_NUM_OF_THREADS_6:
  603. num_threads_numerica = 6;
  604. break;
  605. case UEC_NUM_OF_THREADS_8:
  606. num_threads_numerica = 8;
  607. break;
  608. default:
  609. printf("%s: Bad number of threads value.",
  610. __FUNCTION__);
  611. return -EINVAL;
  612. }
  613. *threads_num_ret = num_threads_numerica;
  614. return 0;
  615. }
  616. static void uec_init_tx_parameter(uec_private_t *uec, int num_threads_tx)
  617. {
  618. uec_info_t *uec_info;
  619. u32 end_bd;
  620. u8 bmrx = 0;
  621. int i;
  622. uec_info = uec->uec_info;
  623. /* Alloc global Tx parameter RAM page */
  624. uec->tx_glbl_pram_offset = qe_muram_alloc(
  625. sizeof(uec_tx_global_pram_t),
  626. UEC_TX_GLOBAL_PRAM_ALIGNMENT);
  627. uec->p_tx_glbl_pram = (uec_tx_global_pram_t *)
  628. qe_muram_addr(uec->tx_glbl_pram_offset);
  629. /* Zero the global Tx prameter RAM */
  630. memset(uec->p_tx_glbl_pram, 0, sizeof(uec_tx_global_pram_t));
  631. /* Init global Tx parameter RAM */
  632. /* TEMODER, RMON statistics disable, one Tx queue */
  633. out_be16(&uec->p_tx_glbl_pram->temoder, TEMODER_INIT_VALUE);
  634. /* SQPTR */
  635. uec->send_q_mem_reg_offset = qe_muram_alloc(
  636. sizeof(uec_send_queue_qd_t),
  637. UEC_SEND_QUEUE_QUEUE_DESCRIPTOR_ALIGNMENT);
  638. uec->p_send_q_mem_reg = (uec_send_queue_mem_region_t *)
  639. qe_muram_addr(uec->send_q_mem_reg_offset);
  640. out_be32(&uec->p_tx_glbl_pram->sqptr, uec->send_q_mem_reg_offset);
  641. /* Setup the table with TxBDs ring */
  642. end_bd = (u32)uec->p_tx_bd_ring + (uec_info->tx_bd_ring_len - 1)
  643. * SIZEOFBD;
  644. out_be32(&uec->p_send_q_mem_reg->sqqd[0].bd_ring_base,
  645. (u32)(uec->p_tx_bd_ring));
  646. out_be32(&uec->p_send_q_mem_reg->sqqd[0].last_bd_completed_address,
  647. end_bd);
  648. /* Scheduler Base Pointer, we have only one Tx queue, no need it */
  649. out_be32(&uec->p_tx_glbl_pram->schedulerbasepointer, 0);
  650. /* TxRMON Base Pointer, TxRMON disable, we don't need it */
  651. out_be32(&uec->p_tx_glbl_pram->txrmonbaseptr, 0);
  652. /* TSTATE, global snooping, big endian, the CSB bus selected */
  653. bmrx = BMR_INIT_VALUE;
  654. out_be32(&uec->p_tx_glbl_pram->tstate, ((u32)(bmrx) << BMR_SHIFT));
  655. /* IPH_Offset */
  656. for (i = 0; i < MAX_IPH_OFFSET_ENTRY; i++) {
  657. out_8(&uec->p_tx_glbl_pram->iphoffset[i], 0);
  658. }
  659. /* VTAG table */
  660. for (i = 0; i < UEC_TX_VTAG_TABLE_ENTRY_MAX; i++) {
  661. out_be32(&uec->p_tx_glbl_pram->vtagtable[i], 0);
  662. }
  663. /* TQPTR */
  664. uec->thread_dat_tx_offset = qe_muram_alloc(
  665. num_threads_tx * sizeof(uec_thread_data_tx_t) +
  666. 32 *(num_threads_tx == 1), UEC_THREAD_DATA_ALIGNMENT);
  667. uec->p_thread_data_tx = (uec_thread_data_tx_t *)
  668. qe_muram_addr(uec->thread_dat_tx_offset);
  669. out_be32(&uec->p_tx_glbl_pram->tqptr, uec->thread_dat_tx_offset);
  670. }
  671. static void uec_init_rx_parameter(uec_private_t *uec, int num_threads_rx)
  672. {
  673. u8 bmrx = 0;
  674. int i;
  675. uec_82xx_address_filtering_pram_t *p_af_pram;
  676. /* Allocate global Rx parameter RAM page */
  677. uec->rx_glbl_pram_offset = qe_muram_alloc(
  678. sizeof(uec_rx_global_pram_t), UEC_RX_GLOBAL_PRAM_ALIGNMENT);
  679. uec->p_rx_glbl_pram = (uec_rx_global_pram_t *)
  680. qe_muram_addr(uec->rx_glbl_pram_offset);
  681. /* Zero Global Rx parameter RAM */
  682. memset(uec->p_rx_glbl_pram, 0, sizeof(uec_rx_global_pram_t));
  683. /* Init global Rx parameter RAM */
  684. /* REMODER, Extended feature mode disable, VLAN disable,
  685. LossLess flow control disable, Receive firmware statisic disable,
  686. Extended address parsing mode disable, One Rx queues,
  687. Dynamic maximum/minimum frame length disable, IP checksum check
  688. disable, IP address alignment disable
  689. */
  690. out_be32(&uec->p_rx_glbl_pram->remoder, REMODER_INIT_VALUE);
  691. /* RQPTR */
  692. uec->thread_dat_rx_offset = qe_muram_alloc(
  693. num_threads_rx * sizeof(uec_thread_data_rx_t),
  694. UEC_THREAD_DATA_ALIGNMENT);
  695. uec->p_thread_data_rx = (uec_thread_data_rx_t *)
  696. qe_muram_addr(uec->thread_dat_rx_offset);
  697. out_be32(&uec->p_rx_glbl_pram->rqptr, uec->thread_dat_rx_offset);
  698. /* Type_or_Len */
  699. out_be16(&uec->p_rx_glbl_pram->typeorlen, 3072);
  700. /* RxRMON base pointer, we don't need it */
  701. out_be32(&uec->p_rx_glbl_pram->rxrmonbaseptr, 0);
  702. /* IntCoalescingPTR, we don't need it, no interrupt */
  703. out_be32(&uec->p_rx_glbl_pram->intcoalescingptr, 0);
  704. /* RSTATE, global snooping, big endian, the CSB bus selected */
  705. bmrx = BMR_INIT_VALUE;
  706. out_8(&uec->p_rx_glbl_pram->rstate, bmrx);
  707. /* MRBLR */
  708. out_be16(&uec->p_rx_glbl_pram->mrblr, MAX_RXBUF_LEN);
  709. /* RBDQPTR */
  710. uec->rx_bd_qs_tbl_offset = qe_muram_alloc(
  711. sizeof(uec_rx_bd_queues_entry_t) + \
  712. sizeof(uec_rx_prefetched_bds_t),
  713. UEC_RX_BD_QUEUES_ALIGNMENT);
  714. uec->p_rx_bd_qs_tbl = (uec_rx_bd_queues_entry_t *)
  715. qe_muram_addr(uec->rx_bd_qs_tbl_offset);
  716. /* Zero it */
  717. memset(uec->p_rx_bd_qs_tbl, 0, sizeof(uec_rx_bd_queues_entry_t) + \
  718. sizeof(uec_rx_prefetched_bds_t));
  719. out_be32(&uec->p_rx_glbl_pram->rbdqptr, uec->rx_bd_qs_tbl_offset);
  720. out_be32(&uec->p_rx_bd_qs_tbl->externalbdbaseptr,
  721. (u32)uec->p_rx_bd_ring);
  722. /* MFLR */
  723. out_be16(&uec->p_rx_glbl_pram->mflr, MAX_FRAME_LEN);
  724. /* MINFLR */
  725. out_be16(&uec->p_rx_glbl_pram->minflr, MIN_FRAME_LEN);
  726. /* MAXD1 */
  727. out_be16(&uec->p_rx_glbl_pram->maxd1, MAX_DMA1_LEN);
  728. /* MAXD2 */
  729. out_be16(&uec->p_rx_glbl_pram->maxd2, MAX_DMA2_LEN);
  730. /* ECAM_PTR */
  731. out_be32(&uec->p_rx_glbl_pram->ecamptr, 0);
  732. /* L2QT */
  733. out_be32(&uec->p_rx_glbl_pram->l2qt, 0);
  734. /* L3QT */
  735. for (i = 0; i < 8; i++) {
  736. out_be32(&uec->p_rx_glbl_pram->l3qt[i], 0);
  737. }
  738. /* VLAN_TYPE */
  739. out_be16(&uec->p_rx_glbl_pram->vlantype, 0x8100);
  740. /* TCI */
  741. out_be16(&uec->p_rx_glbl_pram->vlantci, 0);
  742. /* Clear PQ2 style address filtering hash table */
  743. p_af_pram = (uec_82xx_address_filtering_pram_t *) \
  744. uec->p_rx_glbl_pram->addressfiltering;
  745. p_af_pram->iaddr_h = 0;
  746. p_af_pram->iaddr_l = 0;
  747. p_af_pram->gaddr_h = 0;
  748. p_af_pram->gaddr_l = 0;
  749. }
  750. static int uec_issue_init_enet_rxtx_cmd(uec_private_t *uec,
  751. int thread_tx, int thread_rx)
  752. {
  753. uec_init_cmd_pram_t *p_init_enet_param;
  754. u32 init_enet_param_offset;
  755. uec_info_t *uec_info;
  756. int i;
  757. int snum;
  758. u32 init_enet_offset;
  759. u32 entry_val;
  760. u32 command;
  761. u32 cecr_subblock;
  762. uec_info = uec->uec_info;
  763. /* Allocate init enet command parameter */
  764. uec->init_enet_param_offset = qe_muram_alloc(
  765. sizeof(uec_init_cmd_pram_t), 4);
  766. init_enet_param_offset = uec->init_enet_param_offset;
  767. uec->p_init_enet_param = (uec_init_cmd_pram_t *)
  768. qe_muram_addr(uec->init_enet_param_offset);
  769. /* Zero init enet command struct */
  770. memset((void *)uec->p_init_enet_param, 0, sizeof(uec_init_cmd_pram_t));
  771. /* Init the command struct */
  772. p_init_enet_param = uec->p_init_enet_param;
  773. p_init_enet_param->resinit0 = ENET_INIT_PARAM_MAGIC_RES_INIT0;
  774. p_init_enet_param->resinit1 = ENET_INIT_PARAM_MAGIC_RES_INIT1;
  775. p_init_enet_param->resinit2 = ENET_INIT_PARAM_MAGIC_RES_INIT2;
  776. p_init_enet_param->resinit3 = ENET_INIT_PARAM_MAGIC_RES_INIT3;
  777. p_init_enet_param->resinit4 = ENET_INIT_PARAM_MAGIC_RES_INIT4;
  778. p_init_enet_param->largestexternallookupkeysize = 0;
  779. p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_rx)
  780. << ENET_INIT_PARAM_RGF_SHIFT;
  781. p_init_enet_param->rgftgfrxglobal |= ((u32)uec_info->num_threads_tx)
  782. << ENET_INIT_PARAM_TGF_SHIFT;
  783. /* Init Rx global parameter pointer */
  784. p_init_enet_param->rgftgfrxglobal |= uec->rx_glbl_pram_offset |
  785. (u32)uec_info->riscRx;
  786. /* Init Rx threads */
  787. for (i = 0; i < (thread_rx + 1); i++) {
  788. if ((snum = qe_get_snum()) < 0) {
  789. printf("%s can not get snum\n", __FUNCTION__);
  790. return -ENOMEM;
  791. }
  792. if (i==0) {
  793. init_enet_offset = 0;
  794. } else {
  795. init_enet_offset = qe_muram_alloc(
  796. sizeof(uec_thread_rx_pram_t),
  797. UEC_THREAD_RX_PRAM_ALIGNMENT);
  798. }
  799. entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
  800. init_enet_offset | (u32)uec_info->riscRx;
  801. p_init_enet_param->rxthread[i] = entry_val;
  802. }
  803. /* Init Tx global parameter pointer */
  804. p_init_enet_param->txglobal = uec->tx_glbl_pram_offset |
  805. (u32)uec_info->riscTx;
  806. /* Init Tx threads */
  807. for (i = 0; i < thread_tx; i++) {
  808. if ((snum = qe_get_snum()) < 0) {
  809. printf("%s can not get snum\n", __FUNCTION__);
  810. return -ENOMEM;
  811. }
  812. init_enet_offset = qe_muram_alloc(sizeof(uec_thread_tx_pram_t),
  813. UEC_THREAD_TX_PRAM_ALIGNMENT);
  814. entry_val = ((u32)snum << ENET_INIT_PARAM_SNUM_SHIFT) |
  815. init_enet_offset | (u32)uec_info->riscTx;
  816. p_init_enet_param->txthread[i] = entry_val;
  817. }
  818. __asm__ __volatile__("sync");
  819. /* Issue QE command */
  820. command = QE_INIT_TX_RX;
  821. cecr_subblock = ucc_fast_get_qe_cr_subblock(
  822. uec->uec_info->uf_info.ucc_num);
  823. qe_issue_cmd(command, cecr_subblock, (u8) QE_CR_PROTOCOL_ETHERNET,
  824. init_enet_param_offset);
  825. return 0;
  826. }
  827. static int uec_startup(uec_private_t *uec)
  828. {
  829. uec_info_t *uec_info;
  830. ucc_fast_info_t *uf_info;
  831. ucc_fast_private_t *uccf;
  832. ucc_fast_t *uf_regs;
  833. uec_t *uec_regs;
  834. int num_threads_tx;
  835. int num_threads_rx;
  836. u32 utbipar;
  837. enet_interface_e enet_interface;
  838. u32 length;
  839. u32 align;
  840. qe_bd_t *bd;
  841. u8 *buf;
  842. int i;
  843. if (!uec || !uec->uec_info) {
  844. printf("%s: uec or uec_info not initial\n", __FUNCTION__);
  845. return -EINVAL;
  846. }
  847. uec_info = uec->uec_info;
  848. uf_info = &(uec_info->uf_info);
  849. /* Check if Rx BD ring len is illegal */
  850. if ((uec_info->rx_bd_ring_len < UEC_RX_BD_RING_SIZE_MIN) || \
  851. (uec_info->rx_bd_ring_len % UEC_RX_BD_RING_SIZE_ALIGNMENT)) {
  852. printf("%s: Rx BD ring len must be multiple of 4, and > 8.\n",
  853. __FUNCTION__);
  854. return -EINVAL;
  855. }
  856. /* Check if Tx BD ring len is illegal */
  857. if (uec_info->tx_bd_ring_len < UEC_TX_BD_RING_SIZE_MIN) {
  858. printf("%s: Tx BD ring length must not be smaller than 2.\n",
  859. __FUNCTION__);
  860. return -EINVAL;
  861. }
  862. /* Check if MRBLR is illegal */
  863. if ((MAX_RXBUF_LEN == 0) || (MAX_RXBUF_LEN % UEC_MRBLR_ALIGNMENT)) {
  864. printf("%s: max rx buffer length must be mutliple of 128.\n",
  865. __FUNCTION__);
  866. return -EINVAL;
  867. }
  868. /* Both Rx and Tx are stopped */
  869. uec->grace_stopped_rx = 1;
  870. uec->grace_stopped_tx = 1;
  871. /* Init UCC fast */
  872. if (ucc_fast_init(uf_info, &uccf)) {
  873. printf("%s: failed to init ucc fast\n", __FUNCTION__);
  874. return -ENOMEM;
  875. }
  876. /* Save uccf */
  877. uec->uccf = uccf;
  878. /* Convert the Tx threads number */
  879. if (uec_convert_threads_num(uec_info->num_threads_tx,
  880. &num_threads_tx)) {
  881. return -EINVAL;
  882. }
  883. /* Convert the Rx threads number */
  884. if (uec_convert_threads_num(uec_info->num_threads_rx,
  885. &num_threads_rx)) {
  886. return -EINVAL;
  887. }
  888. uf_regs = uccf->uf_regs;
  889. /* UEC register is following UCC fast registers */
  890. uec_regs = (uec_t *)(&uf_regs->ucc_eth);
  891. /* Save the UEC register pointer to UEC private struct */
  892. uec->uec_regs = uec_regs;
  893. /* Init UPSMR, enable hardware statistics (UCC) */
  894. out_be32(&uec->uccf->uf_regs->upsmr, UPSMR_INIT_VALUE);
  895. /* Init MACCFG1, flow control disable, disable Tx and Rx */
  896. out_be32(&uec_regs->maccfg1, MACCFG1_INIT_VALUE);
  897. /* Init MACCFG2, length check, MAC PAD and CRC enable */
  898. out_be32(&uec_regs->maccfg2, MACCFG2_INIT_VALUE);
  899. /* Setup MAC interface mode */
  900. uec_set_mac_if_mode(uec, uec_info->enet_interface);
  901. /* Setup MII management base */
  902. #ifndef CONFIG_eTSEC_MDIO_BUS
  903. uec->uec_mii_regs = (uec_mii_t *)(&uec_regs->miimcfg);
  904. #else
  905. uec->uec_mii_regs = (uec_mii_t *) CONFIG_MIIM_ADDRESS;
  906. #endif
  907. /* Setup MII master clock source */
  908. qe_set_mii_clk_src(uec_info->uf_info.ucc_num);
  909. /* Setup UTBIPAR */
  910. utbipar = in_be32(&uec_regs->utbipar);
  911. utbipar &= ~UTBIPAR_PHY_ADDRESS_MASK;
  912. enet_interface = uec->uec_info->enet_interface;
  913. if (enet_interface == ENET_1000_TBI ||
  914. enet_interface == ENET_1000_RTBI) {
  915. utbipar |= (uec_info->phy_address + uec_info->uf_info.ucc_num)
  916. << UTBIPAR_PHY_ADDRESS_SHIFT;
  917. } else {
  918. utbipar |= (0x10 + uec_info->uf_info.ucc_num)
  919. << UTBIPAR_PHY_ADDRESS_SHIFT;
  920. }
  921. out_be32(&uec_regs->utbipar, utbipar);
  922. /* Allocate Tx BDs */
  923. length = ((uec_info->tx_bd_ring_len * SIZEOFBD) /
  924. UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) *
  925. UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
  926. if ((uec_info->tx_bd_ring_len * SIZEOFBD) %
  927. UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT) {
  928. length += UEC_TX_BD_RING_SIZE_MEMORY_ALIGNMENT;
  929. }
  930. align = UEC_TX_BD_RING_ALIGNMENT;
  931. uec->tx_bd_ring_offset = (u32)malloc((u32)(length + align));
  932. if (uec->tx_bd_ring_offset != 0) {
  933. uec->p_tx_bd_ring = (u8 *)((uec->tx_bd_ring_offset + align)
  934. & ~(align - 1));
  935. }
  936. /* Zero all of Tx BDs */
  937. memset((void *)(uec->tx_bd_ring_offset), 0, length + align);
  938. /* Allocate Rx BDs */
  939. length = uec_info->rx_bd_ring_len * SIZEOFBD;
  940. align = UEC_RX_BD_RING_ALIGNMENT;
  941. uec->rx_bd_ring_offset = (u32)(malloc((u32)(length + align)));
  942. if (uec->rx_bd_ring_offset != 0) {
  943. uec->p_rx_bd_ring = (u8 *)((uec->rx_bd_ring_offset + align)
  944. & ~(align - 1));
  945. }
  946. /* Zero all of Rx BDs */
  947. memset((void *)(uec->rx_bd_ring_offset), 0, length + align);
  948. /* Allocate Rx buffer */
  949. length = uec_info->rx_bd_ring_len * MAX_RXBUF_LEN;
  950. align = UEC_RX_DATA_BUF_ALIGNMENT;
  951. uec->rx_buf_offset = (u32)malloc(length + align);
  952. if (uec->rx_buf_offset != 0) {
  953. uec->p_rx_buf = (u8 *)((uec->rx_buf_offset + align)
  954. & ~(align - 1));
  955. }
  956. /* Zero all of the Rx buffer */
  957. memset((void *)(uec->rx_buf_offset), 0, length + align);
  958. /* Init TxBD ring */
  959. bd = (qe_bd_t *)uec->p_tx_bd_ring;
  960. uec->txBd = bd;
  961. for (i = 0; i < uec_info->tx_bd_ring_len; i++) {
  962. BD_DATA_CLEAR(bd);
  963. BD_STATUS_SET(bd, 0);
  964. BD_LENGTH_SET(bd, 0);
  965. bd ++;
  966. }
  967. BD_STATUS_SET((--bd), TxBD_WRAP);
  968. /* Init RxBD ring */
  969. bd = (qe_bd_t *)uec->p_rx_bd_ring;
  970. uec->rxBd = bd;
  971. buf = uec->p_rx_buf;
  972. for (i = 0; i < uec_info->rx_bd_ring_len; i++) {
  973. BD_DATA_SET(bd, buf);
  974. BD_LENGTH_SET(bd, 0);
  975. BD_STATUS_SET(bd, RxBD_EMPTY);
  976. buf += MAX_RXBUF_LEN;
  977. bd ++;
  978. }
  979. BD_STATUS_SET((--bd), RxBD_WRAP | RxBD_EMPTY);
  980. /* Init global Tx parameter RAM */
  981. uec_init_tx_parameter(uec, num_threads_tx);
  982. /* Init global Rx parameter RAM */
  983. uec_init_rx_parameter(uec, num_threads_rx);
  984. /* Init ethernet Tx and Rx parameter command */
  985. if (uec_issue_init_enet_rxtx_cmd(uec, num_threads_tx,
  986. num_threads_rx)) {
  987. printf("%s issue init enet cmd failed\n", __FUNCTION__);
  988. return -ENOMEM;
  989. }
  990. return 0;
  991. }
  992. static int uec_init(struct eth_device* dev, bd_t *bd)
  993. {
  994. uec_private_t *uec;
  995. int err, i;
  996. struct phy_info *curphy;
  997. uec = (uec_private_t *)dev->priv;
  998. if (uec->the_first_run == 0) {
  999. err = init_phy(dev);
  1000. if (err) {
  1001. printf("%s: Cannot initialize PHY, aborting.\n",
  1002. dev->name);
  1003. return err;
  1004. }
  1005. curphy = uec->mii_info->phyinfo;
  1006. if (curphy->config_aneg) {
  1007. err = curphy->config_aneg(uec->mii_info);
  1008. if (err) {
  1009. printf("%s: Can't negotiate PHY\n", dev->name);
  1010. return err;
  1011. }
  1012. }
  1013. /* Give PHYs up to 5 sec to report a link */
  1014. i = 50;
  1015. do {
  1016. err = curphy->read_status(uec->mii_info);
  1017. udelay(100000);
  1018. } while (((i-- > 0) && !uec->mii_info->link) || err);
  1019. if (err || i <= 0)
  1020. printf("warning: %s: timeout on PHY link\n", dev->name);
  1021. uec->the_first_run = 1;
  1022. }
  1023. /* Set up the MAC address */
  1024. if (dev->enetaddr[0] & 0x01) {
  1025. printf("%s: MacAddress is multcast address\n",
  1026. __FUNCTION__);
  1027. return -1;
  1028. }
  1029. uec_set_mac_address(uec, dev->enetaddr);
  1030. err = uec_open(uec, COMM_DIR_RX_AND_TX);
  1031. if (err) {
  1032. printf("%s: cannot enable UEC device\n", dev->name);
  1033. return -1;
  1034. }
  1035. phy_change(dev);
  1036. return (uec->mii_info->link ? 0 : -1);
  1037. }
  1038. static void uec_halt(struct eth_device* dev)
  1039. {
  1040. uec_private_t *uec = (uec_private_t *)dev->priv;
  1041. uec_stop(uec, COMM_DIR_RX_AND_TX);
  1042. }
  1043. static int uec_send(struct eth_device* dev, volatile void *buf, int len)
  1044. {
  1045. uec_private_t *uec;
  1046. ucc_fast_private_t *uccf;
  1047. volatile qe_bd_t *bd;
  1048. u16 status;
  1049. int i;
  1050. int result = 0;
  1051. uec = (uec_private_t *)dev->priv;
  1052. uccf = uec->uccf;
  1053. bd = uec->txBd;
  1054. /* Find an empty TxBD */
  1055. for (i = 0; bd->status & TxBD_READY; i++) {
  1056. if (i > 0x100000) {
  1057. printf("%s: tx buffer not ready\n", dev->name);
  1058. return result;
  1059. }
  1060. }
  1061. /* Init TxBD */
  1062. BD_DATA_SET(bd, buf);
  1063. BD_LENGTH_SET(bd, len);
  1064. status = bd->status;
  1065. status &= BD_WRAP;
  1066. status |= (TxBD_READY | TxBD_LAST);
  1067. BD_STATUS_SET(bd, status);
  1068. /* Tell UCC to transmit the buffer */
  1069. ucc_fast_transmit_on_demand(uccf);
  1070. /* Wait for buffer to be transmitted */
  1071. for (i = 0; bd->status & TxBD_READY; i++) {
  1072. if (i > 0x100000) {
  1073. printf("%s: tx error\n", dev->name);
  1074. return result;
  1075. }
  1076. }
  1077. /* Ok, the buffer be transimitted */
  1078. BD_ADVANCE(bd, status, uec->p_tx_bd_ring);
  1079. uec->txBd = bd;
  1080. result = 1;
  1081. return result;
  1082. }
  1083. static int uec_recv(struct eth_device* dev)
  1084. {
  1085. uec_private_t *uec = dev->priv;
  1086. volatile qe_bd_t *bd;
  1087. u16 status;
  1088. u16 len;
  1089. u8 *data;
  1090. bd = uec->rxBd;
  1091. status = bd->status;
  1092. while (!(status & RxBD_EMPTY)) {
  1093. if (!(status & RxBD_ERROR)) {
  1094. data = BD_DATA(bd);
  1095. len = BD_LENGTH(bd);
  1096. NetReceive(data, len);
  1097. } else {
  1098. printf("%s: Rx error\n", dev->name);
  1099. }
  1100. status &= BD_CLEAN;
  1101. BD_LENGTH_SET(bd, 0);
  1102. BD_STATUS_SET(bd, status | RxBD_EMPTY);
  1103. BD_ADVANCE(bd, status, uec->p_rx_bd_ring);
  1104. status = bd->status;
  1105. }
  1106. uec->rxBd = bd;
  1107. return 1;
  1108. }
  1109. int uec_initialize(int index)
  1110. {
  1111. struct eth_device *dev;
  1112. int i;
  1113. uec_private_t *uec;
  1114. uec_info_t *uec_info;
  1115. int err;
  1116. dev = (struct eth_device *)malloc(sizeof(struct eth_device));
  1117. if (!dev)
  1118. return 0;
  1119. memset(dev, 0, sizeof(struct eth_device));
  1120. /* Allocate the UEC private struct */
  1121. uec = (uec_private_t *)malloc(sizeof(uec_private_t));
  1122. if (!uec) {
  1123. return -ENOMEM;
  1124. }
  1125. memset(uec, 0, sizeof(uec_private_t));
  1126. /* Init UEC private struct, they come from board.h */
  1127. uec_info = NULL;
  1128. if (index == 0) {
  1129. #ifdef CONFIG_UEC_ETH1
  1130. uec_info = &eth1_uec_info;
  1131. #endif
  1132. } else if (index == 1) {
  1133. #ifdef CONFIG_UEC_ETH2
  1134. uec_info = &eth2_uec_info;
  1135. #endif
  1136. } else if (index == 2) {
  1137. #ifdef CONFIG_UEC_ETH3
  1138. uec_info = &eth3_uec_info;
  1139. #endif
  1140. } else if (index == 3) {
  1141. #ifdef CONFIG_UEC_ETH4
  1142. uec_info = &eth4_uec_info;
  1143. #endif
  1144. } else {
  1145. printf("%s: index is illegal.\n", __FUNCTION__);
  1146. return -EINVAL;
  1147. }
  1148. devlist[index] = dev;
  1149. uec->uec_info = uec_info;
  1150. sprintf(dev->name, "FSL UEC%d", index);
  1151. dev->iobase = 0;
  1152. dev->priv = (void *)uec;
  1153. dev->init = uec_init;
  1154. dev->halt = uec_halt;
  1155. dev->send = uec_send;
  1156. dev->recv = uec_recv;
  1157. /* Clear the ethnet address */
  1158. for (i = 0; i < 6; i++)
  1159. dev->enetaddr[i] = 0;
  1160. eth_register(dev);
  1161. err = uec_startup(uec);
  1162. if (err) {
  1163. printf("%s: Cannot configure net device, aborting.",dev->name);
  1164. return err;
  1165. }
  1166. #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
  1167. && !defined(BITBANGMII)
  1168. miiphy_register(dev->name, uec_miiphy_read, uec_miiphy_write);
  1169. #endif
  1170. return 1;
  1171. }
  1172. #endif /* CONFIG_QE */