1 /*
2 * Copyright 2009-2012 Freescale Semiconductor, Inc.
3 * Dave Liu <daveliu@freescale.com>
4 *
5 * SPDX-License-Identifier: GPL-2.0+
6 */
7 #include <common.h>
8 #include <asm/io.h>
9 #include <malloc.h>
10 #include <net.h>
11 #include <hwconfig.h>
12 #include <fm_eth.h>
13 #include <fsl_mdio.h>
14 #include <miiphy.h>
15 #include <phy.h>
16 #include <fsl_dtsec.h>
17 #include <fsl_tgec.h>
18 #include <fsl_memac.h>
19
20 #include "fm.h"
21
22 static struct eth_device *devlist[NUM_FM_PORTS];
23 static int num_controllers;
24
25 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) && !defined(BITBANGMII)
26
27 #define TBIANA_SETTINGS (TBIANA_ASYMMETRIC_PAUSE | TBIANA_SYMMETRIC_PAUSE | \
28 TBIANA_FULL_DUPLEX)
29
30 #define TBIANA_SGMII_ACK 0x4001
31
32 #define TBICR_SETTINGS (TBICR_ANEG_ENABLE | TBICR_RESTART_ANEG | \
33 TBICR_FULL_DUPLEX | TBICR_SPEED1_SET)
34
35 /* Configure the TBI for SGMII operation */
dtsec_configure_serdes(struct fm_eth * priv)36 static void dtsec_configure_serdes(struct fm_eth *priv)
37 {
38 #ifdef CONFIG_SYS_FMAN_V3
39 u32 value;
40 struct mii_dev bus;
41 bus.priv = priv->mac->phyregs;
42 bool sgmii_2500 = (priv->enet_if ==
43 PHY_INTERFACE_MODE_SGMII_2500) ? true : false;
44 int i = 0;
45
46 qsgmii_loop:
47 /* SGMII IF mode + AN enable only for 1G SGMII, not for 2.5G */
48 if (sgmii_2500)
49 value = PHY_SGMII_CR_PHY_RESET |
50 PHY_SGMII_IF_SPEED_GIGABIT |
51 PHY_SGMII_IF_MODE_SGMII;
52 else
53 value = PHY_SGMII_IF_MODE_SGMII | PHY_SGMII_IF_MODE_AN;
54
55 memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x14, value);
56
57 /* Dev ability according to SGMII specification */
58 value = PHY_SGMII_DEV_ABILITY_SGMII;
59 memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x4, value);
60
61 if (sgmii_2500) {
62 /* Adjust link timer for 2.5G SGMII,
63 * 1.6 ms in units of 3.2 ns:
64 * 1.6ms / 3.2ns = 5 * 10^5 = 0x7a120.
65 */
66 memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x13, 0x0007);
67 memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x12, 0xa120);
68 } else {
69 /* Adjust link timer for SGMII,
70 * 1.6 ms in units of 8 ns:
71 * 1.6ms / 8ns = 2 * 10^5 = 0x30d40.
72 */
73 memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x13, 0x0003);
74 memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0x12, 0x0d40);
75 }
76
77 /* Restart AN */
78 value = PHY_SGMII_CR_DEF_VAL | PHY_SGMII_CR_RESET_AN;
79 memac_mdio_write(&bus, i, MDIO_DEVAD_NONE, 0, value);
80
81 if ((priv->enet_if == PHY_INTERFACE_MODE_QSGMII) && (i < 3)) {
82 i++;
83 goto qsgmii_loop;
84 }
85 #else
86 struct dtsec *regs = priv->mac->base;
87 struct tsec_mii_mng *phyregs = priv->mac->phyregs;
88
89 /*
90 * Access TBI PHY registers at given TSEC register offset as
91 * opposed to the register offset used for external PHY accesses
92 */
93 tsec_local_mdio_write(phyregs, in_be32(®s->tbipa), 0, TBI_TBICON,
94 TBICON_CLK_SELECT);
95 tsec_local_mdio_write(phyregs, in_be32(®s->tbipa), 0, TBI_ANA,
96 TBIANA_SGMII_ACK);
97 tsec_local_mdio_write(phyregs, in_be32(®s->tbipa), 0,
98 TBI_CR, TBICR_SETTINGS);
99 #endif
100 }
101
dtsec_init_phy(struct eth_device * dev)102 static void dtsec_init_phy(struct eth_device *dev)
103 {
104 struct fm_eth *fm_eth = dev->priv;
105 #ifndef CONFIG_SYS_FMAN_V3
106 struct dtsec *regs = (struct dtsec *)CONFIG_SYS_FSL_FM1_DTSEC1_ADDR;
107
108 /* Assign a Physical address to the TBI */
109 out_be32(®s->tbipa, CONFIG_SYS_TBIPA_VALUE);
110 #endif
111
112 if (fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII ||
113 fm_eth->enet_if == PHY_INTERFACE_MODE_QSGMII ||
114 fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII_2500)
115 dtsec_configure_serdes(fm_eth);
116 }
117
118 #ifdef CONFIG_PHYLIB
tgec_is_fibre(struct eth_device * dev)119 static int tgec_is_fibre(struct eth_device *dev)
120 {
121 struct fm_eth *fm = dev->priv;
122 char phyopt[20];
123
124 sprintf(phyopt, "fsl_fm%d_xaui_phy", fm->fm_index + 1);
125
126 return hwconfig_arg_cmp(phyopt, "xfi");
127 }
128 #endif
129 #endif
130
muram_readw(u16 * addr)131 static u16 muram_readw(u16 *addr)
132 {
133 ulong base = (ulong)addr & ~0x3UL;
134 u32 val32 = in_be32((void *)base);
135 int byte_pos;
136 u16 ret;
137
138 byte_pos = (ulong)addr & 0x3UL;
139 if (byte_pos)
140 ret = (u16)(val32 & 0x0000ffff);
141 else
142 ret = (u16)((val32 & 0xffff0000) >> 16);
143
144 return ret;
145 }
146
muram_writew(u16 * addr,u16 val)147 static void muram_writew(u16 *addr, u16 val)
148 {
149 ulong base = (ulong)addr & ~0x3UL;
150 u32 org32 = in_be32((void *)base);
151 u32 val32;
152 int byte_pos;
153
154 byte_pos = (ulong)addr & 0x3UL;
155 if (byte_pos)
156 val32 = (org32 & 0xffff0000) | val;
157 else
158 val32 = (org32 & 0x0000ffff) | ((u32)val << 16);
159
160 out_be32((void *)base, val32);
161 }
162
bmi_rx_port_disable(struct fm_bmi_rx_port * rx_port)163 static void bmi_rx_port_disable(struct fm_bmi_rx_port *rx_port)
164 {
165 int timeout = 1000000;
166
167 clrbits_be32(&rx_port->fmbm_rcfg, FMBM_RCFG_EN);
168
169 /* wait until the rx port is not busy */
170 while ((in_be32(&rx_port->fmbm_rst) & FMBM_RST_BSY) && timeout--)
171 ;
172 }
173
bmi_rx_port_init(struct fm_bmi_rx_port * rx_port)174 static void bmi_rx_port_init(struct fm_bmi_rx_port *rx_port)
175 {
176 /* set BMI to independent mode, Rx port disable */
177 out_be32(&rx_port->fmbm_rcfg, FMBM_RCFG_IM);
178 /* clear FOF in IM case */
179 out_be32(&rx_port->fmbm_rim, 0);
180 /* Rx frame next engine -RISC */
181 out_be32(&rx_port->fmbm_rfne, NIA_ENG_RISC | NIA_RISC_AC_IM_RX);
182 /* Rx command attribute - no order, MR[3] = 1 */
183 clrbits_be32(&rx_port->fmbm_rfca, FMBM_RFCA_ORDER | FMBM_RFCA_MR_MASK);
184 setbits_be32(&rx_port->fmbm_rfca, FMBM_RFCA_MR(4));
185 /* enable Rx statistic counters */
186 out_be32(&rx_port->fmbm_rstc, FMBM_RSTC_EN);
187 /* disable Rx performance counters */
188 out_be32(&rx_port->fmbm_rpc, 0);
189 }
190
bmi_tx_port_disable(struct fm_bmi_tx_port * tx_port)191 static void bmi_tx_port_disable(struct fm_bmi_tx_port *tx_port)
192 {
193 int timeout = 1000000;
194
195 clrbits_be32(&tx_port->fmbm_tcfg, FMBM_TCFG_EN);
196
197 /* wait until the tx port is not busy */
198 while ((in_be32(&tx_port->fmbm_tst) & FMBM_TST_BSY) && timeout--)
199 ;
200 }
201
bmi_tx_port_init(struct fm_bmi_tx_port * tx_port)202 static void bmi_tx_port_init(struct fm_bmi_tx_port *tx_port)
203 {
204 /* set BMI to independent mode, Tx port disable */
205 out_be32(&tx_port->fmbm_tcfg, FMBM_TCFG_IM);
206 /* Tx frame next engine -RISC */
207 out_be32(&tx_port->fmbm_tfne, NIA_ENG_RISC | NIA_RISC_AC_IM_TX);
208 out_be32(&tx_port->fmbm_tfene, NIA_ENG_RISC | NIA_RISC_AC_IM_TX);
209 /* Tx command attribute - no order, MR[3] = 1 */
210 clrbits_be32(&tx_port->fmbm_tfca, FMBM_TFCA_ORDER | FMBM_TFCA_MR_MASK);
211 setbits_be32(&tx_port->fmbm_tfca, FMBM_TFCA_MR(4));
212 /* enable Tx statistic counters */
213 out_be32(&tx_port->fmbm_tstc, FMBM_TSTC_EN);
214 /* disable Tx performance counters */
215 out_be32(&tx_port->fmbm_tpc, 0);
216 }
217
fm_eth_rx_port_parameter_init(struct fm_eth * fm_eth)218 static int fm_eth_rx_port_parameter_init(struct fm_eth *fm_eth)
219 {
220 struct fm_port_global_pram *pram;
221 u32 pram_page_offset;
222 void *rx_bd_ring_base;
223 void *rx_buf_pool;
224 u32 bd_ring_base_lo, bd_ring_base_hi;
225 u32 buf_lo, buf_hi;
226 struct fm_port_bd *rxbd;
227 struct fm_port_qd *rxqd;
228 struct fm_bmi_rx_port *bmi_rx_port = fm_eth->rx_port;
229 int i;
230
231 /* alloc global parameter ram at MURAM */
232 pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
233 FM_PRAM_SIZE, FM_PRAM_ALIGN);
234 if (!pram) {
235 printf("%s: No muram for Rx global parameter\n", __func__);
236 return -ENOMEM;
237 }
238
239 fm_eth->rx_pram = pram;
240
241 /* parameter page offset to MURAM */
242 pram_page_offset = (void *)pram - fm_muram_base(fm_eth->fm_index);
243
244 /* enable global mode- snooping data buffers and BDs */
245 out_be32(&pram->mode, PRAM_MODE_GLOBAL);
246
247 /* init the Rx queue descriptor pionter */
248 out_be32(&pram->rxqd_ptr, pram_page_offset + 0x20);
249
250 /* set the max receive buffer length, power of 2 */
251 muram_writew(&pram->mrblr, MAX_RXBUF_LOG2);
252
253 /* alloc Rx buffer descriptors from main memory */
254 rx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
255 * RX_BD_RING_SIZE);
256 if (!rx_bd_ring_base)
257 return -ENOMEM;
258
259 memset(rx_bd_ring_base, 0, sizeof(struct fm_port_bd)
260 * RX_BD_RING_SIZE);
261
262 /* alloc Rx buffer from main memory */
263 rx_buf_pool = malloc(MAX_RXBUF_LEN * RX_BD_RING_SIZE);
264 if (!rx_buf_pool)
265 return -ENOMEM;
266
267 memset(rx_buf_pool, 0, MAX_RXBUF_LEN * RX_BD_RING_SIZE);
268 debug("%s: rx_buf_pool = %p\n", __func__, rx_buf_pool);
269
270 /* save them to fm_eth */
271 fm_eth->rx_bd_ring = rx_bd_ring_base;
272 fm_eth->cur_rxbd = rx_bd_ring_base;
273 fm_eth->rx_buf = rx_buf_pool;
274
275 /* init Rx BDs ring */
276 rxbd = (struct fm_port_bd *)rx_bd_ring_base;
277 for (i = 0; i < RX_BD_RING_SIZE; i++) {
278 muram_writew(&rxbd->status, RxBD_EMPTY);
279 muram_writew(&rxbd->len, 0);
280 buf_hi = upper_32_bits(virt_to_phys(rx_buf_pool +
281 i * MAX_RXBUF_LEN));
282 buf_lo = lower_32_bits(virt_to_phys(rx_buf_pool +
283 i * MAX_RXBUF_LEN));
284 muram_writew(&rxbd->buf_ptr_hi, (u16)buf_hi);
285 out_be32(&rxbd->buf_ptr_lo, buf_lo);
286 rxbd++;
287 }
288
289 /* set the Rx queue descriptor */
290 rxqd = &pram->rxqd;
291 muram_writew(&rxqd->gen, 0);
292 bd_ring_base_hi = upper_32_bits(virt_to_phys(rx_bd_ring_base));
293 bd_ring_base_lo = lower_32_bits(virt_to_phys(rx_bd_ring_base));
294 muram_writew(&rxqd->bd_ring_base_hi, (u16)bd_ring_base_hi);
295 out_be32(&rxqd->bd_ring_base_lo, bd_ring_base_lo);
296 muram_writew(&rxqd->bd_ring_size, sizeof(struct fm_port_bd)
297 * RX_BD_RING_SIZE);
298 muram_writew(&rxqd->offset_in, 0);
299 muram_writew(&rxqd->offset_out, 0);
300
301 /* set IM parameter ram pointer to Rx Frame Queue ID */
302 out_be32(&bmi_rx_port->fmbm_rfqid, pram_page_offset);
303
304 return 0;
305 }
306
fm_eth_tx_port_parameter_init(struct fm_eth * fm_eth)307 static int fm_eth_tx_port_parameter_init(struct fm_eth *fm_eth)
308 {
309 struct fm_port_global_pram *pram;
310 u32 pram_page_offset;
311 void *tx_bd_ring_base;
312 u32 bd_ring_base_lo, bd_ring_base_hi;
313 struct fm_port_bd *txbd;
314 struct fm_port_qd *txqd;
315 struct fm_bmi_tx_port *bmi_tx_port = fm_eth->tx_port;
316 int i;
317
318 /* alloc global parameter ram at MURAM */
319 pram = (struct fm_port_global_pram *)fm_muram_alloc(fm_eth->fm_index,
320 FM_PRAM_SIZE, FM_PRAM_ALIGN);
321 if (!pram) {
322 printf("%s: No muram for Tx global parameter\n", __func__);
323 return -ENOMEM;
324 }
325 fm_eth->tx_pram = pram;
326
327 /* parameter page offset to MURAM */
328 pram_page_offset = (void *)pram - fm_muram_base(fm_eth->fm_index);
329
330 /* enable global mode- snooping data buffers and BDs */
331 out_be32(&pram->mode, PRAM_MODE_GLOBAL);
332
333 /* init the Tx queue descriptor pionter */
334 out_be32(&pram->txqd_ptr, pram_page_offset + 0x40);
335
336 /* alloc Tx buffer descriptors from main memory */
337 tx_bd_ring_base = malloc(sizeof(struct fm_port_bd)
338 * TX_BD_RING_SIZE);
339 if (!tx_bd_ring_base)
340 return -ENOMEM;
341
342 memset(tx_bd_ring_base, 0, sizeof(struct fm_port_bd)
343 * TX_BD_RING_SIZE);
344 /* save it to fm_eth */
345 fm_eth->tx_bd_ring = tx_bd_ring_base;
346 fm_eth->cur_txbd = tx_bd_ring_base;
347
348 /* init Tx BDs ring */
349 txbd = (struct fm_port_bd *)tx_bd_ring_base;
350 for (i = 0; i < TX_BD_RING_SIZE; i++) {
351 muram_writew(&txbd->status, TxBD_LAST);
352 muram_writew(&txbd->len, 0);
353 muram_writew(&txbd->buf_ptr_hi, 0);
354 out_be32(&txbd->buf_ptr_lo, 0);
355 txbd++;
356 }
357
358 /* set the Tx queue decriptor */
359 txqd = &pram->txqd;
360 bd_ring_base_hi = upper_32_bits(virt_to_phys(tx_bd_ring_base));
361 bd_ring_base_lo = lower_32_bits(virt_to_phys(tx_bd_ring_base));
362 muram_writew(&txqd->bd_ring_base_hi, (u16)bd_ring_base_hi);
363 out_be32(&txqd->bd_ring_base_lo, bd_ring_base_lo);
364 muram_writew(&txqd->bd_ring_size, sizeof(struct fm_port_bd)
365 * TX_BD_RING_SIZE);
366 muram_writew(&txqd->offset_in, 0);
367 muram_writew(&txqd->offset_out, 0);
368
369 /* set IM parameter ram pointer to Tx Confirmation Frame Queue ID */
370 out_be32(&bmi_tx_port->fmbm_tcfqid, pram_page_offset);
371
372 return 0;
373 }
374
fm_eth_init(struct fm_eth * fm_eth)375 static int fm_eth_init(struct fm_eth *fm_eth)
376 {
377 int ret;
378
379 ret = fm_eth_rx_port_parameter_init(fm_eth);
380 if (ret)
381 return ret;
382
383 ret = fm_eth_tx_port_parameter_init(fm_eth);
384 if (ret)
385 return ret;
386
387 return 0;
388 }
389
fm_eth_startup(struct fm_eth * fm_eth)390 static int fm_eth_startup(struct fm_eth *fm_eth)
391 {
392 struct fsl_enet_mac *mac;
393 int ret;
394
395 mac = fm_eth->mac;
396
397 /* Rx/TxBDs, Rx/TxQDs, Rx buff and parameter ram init */
398 ret = fm_eth_init(fm_eth);
399 if (ret)
400 return ret;
401 /* setup the MAC controller */
402 mac->init_mac(mac);
403
404 /* For some reason we need to set SPEED_100 */
405 if (((fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII) ||
406 (fm_eth->enet_if == PHY_INTERFACE_MODE_SGMII_2500) ||
407 (fm_eth->enet_if == PHY_INTERFACE_MODE_QSGMII)) &&
408 mac->set_if_mode)
409 mac->set_if_mode(mac, fm_eth->enet_if, SPEED_100);
410
411 /* init bmi rx port, IM mode and disable */
412 bmi_rx_port_init(fm_eth->rx_port);
413 /* init bmi tx port, IM mode and disable */
414 bmi_tx_port_init(fm_eth->tx_port);
415
416 return 0;
417 }
418
fmc_tx_port_graceful_stop_enable(struct fm_eth * fm_eth)419 static void fmc_tx_port_graceful_stop_enable(struct fm_eth *fm_eth)
420 {
421 struct fm_port_global_pram *pram;
422
423 pram = fm_eth->tx_pram;
424 /* graceful stop transmission of frames */
425 setbits_be32(&pram->mode, PRAM_MODE_GRACEFUL_STOP);
426 sync();
427 }
428
fmc_tx_port_graceful_stop_disable(struct fm_eth * fm_eth)429 static void fmc_tx_port_graceful_stop_disable(struct fm_eth *fm_eth)
430 {
431 struct fm_port_global_pram *pram;
432
433 pram = fm_eth->tx_pram;
434 /* re-enable transmission of frames */
435 clrbits_be32(&pram->mode, PRAM_MODE_GRACEFUL_STOP);
436 sync();
437 }
438
fm_eth_open(struct eth_device * dev,bd_t * bd)439 static int fm_eth_open(struct eth_device *dev, bd_t *bd)
440 {
441 struct fm_eth *fm_eth;
442 struct fsl_enet_mac *mac;
443 #ifdef CONFIG_PHYLIB
444 int ret;
445 #endif
446
447 fm_eth = (struct fm_eth *)dev->priv;
448 mac = fm_eth->mac;
449
450 /* setup the MAC address */
451 if (dev->enetaddr[0] & 0x01) {
452 printf("%s: MacAddress is multcast address\n", __func__);
453 return 1;
454 }
455 mac->set_mac_addr(mac, dev->enetaddr);
456
457 /* enable bmi Rx port */
458 setbits_be32(&fm_eth->rx_port->fmbm_rcfg, FMBM_RCFG_EN);
459 /* enable MAC rx/tx port */
460 mac->enable_mac(mac);
461 /* enable bmi Tx port */
462 setbits_be32(&fm_eth->tx_port->fmbm_tcfg, FMBM_TCFG_EN);
463 /* re-enable transmission of frame */
464 fmc_tx_port_graceful_stop_disable(fm_eth);
465
466 #ifdef CONFIG_PHYLIB
467 if (fm_eth->phydev) {
468 ret = phy_startup(fm_eth->phydev);
469 if (ret) {
470 printf("%s: Could not initialize\n",
471 fm_eth->phydev->dev->name);
472 return ret;
473 }
474 } else {
475 return 0;
476 }
477 #else
478 fm_eth->phydev->speed = SPEED_1000;
479 fm_eth->phydev->link = 1;
480 fm_eth->phydev->duplex = DUPLEX_FULL;
481 #endif
482
483 /* set the MAC-PHY mode */
484 mac->set_if_mode(mac, fm_eth->enet_if, fm_eth->phydev->speed);
485
486 if (!fm_eth->phydev->link)
487 printf("%s: No link.\n", fm_eth->phydev->dev->name);
488
489 return fm_eth->phydev->link ? 0 : -1;
490 }
491
fm_eth_halt(struct eth_device * dev)492 static void fm_eth_halt(struct eth_device *dev)
493 {
494 struct fm_eth *fm_eth;
495 struct fsl_enet_mac *mac;
496
497 fm_eth = (struct fm_eth *)dev->priv;
498 mac = fm_eth->mac;
499
500 /* graceful stop the transmission of frames */
501 fmc_tx_port_graceful_stop_enable(fm_eth);
502 /* disable bmi Tx port */
503 bmi_tx_port_disable(fm_eth->tx_port);
504 /* disable MAC rx/tx port */
505 mac->disable_mac(mac);
506 /* disable bmi Rx port */
507 bmi_rx_port_disable(fm_eth->rx_port);
508
509 #ifdef CONFIG_PHYLIB
510 if (fm_eth->phydev)
511 phy_shutdown(fm_eth->phydev);
512 #endif
513 }
514
fm_eth_send(struct eth_device * dev,void * buf,int len)515 static int fm_eth_send(struct eth_device *dev, void *buf, int len)
516 {
517 struct fm_eth *fm_eth;
518 struct fm_port_global_pram *pram;
519 struct fm_port_bd *txbd, *txbd_base;
520 u16 offset_in;
521 int i;
522
523 fm_eth = (struct fm_eth *)dev->priv;
524 pram = fm_eth->tx_pram;
525 txbd = fm_eth->cur_txbd;
526
527 /* find one empty TxBD */
528 for (i = 0; muram_readw(&txbd->status) & TxBD_READY; i++) {
529 udelay(100);
530 if (i > 0x1000) {
531 printf("%s: Tx buffer not ready, txbd->status = 0x%x\n",
532 dev->name, muram_readw(&txbd->status));
533 return 0;
534 }
535 }
536 /* setup TxBD */
537 muram_writew(&txbd->buf_ptr_hi, (u16)upper_32_bits(virt_to_phys(buf)));
538 out_be32(&txbd->buf_ptr_lo, lower_32_bits(virt_to_phys(buf)));
539 muram_writew(&txbd->len, len);
540 sync();
541 muram_writew(&txbd->status, TxBD_READY | TxBD_LAST);
542 sync();
543
544 /* update TxQD, let RISC to send the packet */
545 offset_in = muram_readw(&pram->txqd.offset_in);
546 offset_in += sizeof(struct fm_port_bd);
547 if (offset_in >= muram_readw(&pram->txqd.bd_ring_size))
548 offset_in = 0;
549 muram_writew(&pram->txqd.offset_in, offset_in);
550 sync();
551
552 /* wait for buffer to be transmitted */
553 for (i = 0; muram_readw(&txbd->status) & TxBD_READY; i++) {
554 udelay(100);
555 if (i > 0x10000) {
556 printf("%s: Tx error, txbd->status = 0x%x\n",
557 dev->name, muram_readw(&txbd->status));
558 return 0;
559 }
560 }
561
562 /* advance the TxBD */
563 txbd++;
564 txbd_base = (struct fm_port_bd *)fm_eth->tx_bd_ring;
565 if (txbd >= (txbd_base + TX_BD_RING_SIZE))
566 txbd = txbd_base;
567 /* update current txbd */
568 fm_eth->cur_txbd = (void *)txbd;
569
570 return 1;
571 }
572
fm_eth_recv(struct eth_device * dev)573 static int fm_eth_recv(struct eth_device *dev)
574 {
575 struct fm_eth *fm_eth;
576 struct fm_port_global_pram *pram;
577 struct fm_port_bd *rxbd, *rxbd_base;
578 u16 status, len;
579 u32 buf_lo, buf_hi;
580 u8 *data;
581 u16 offset_out;
582 int ret = 1;
583
584 fm_eth = (struct fm_eth *)dev->priv;
585 pram = fm_eth->rx_pram;
586 rxbd = fm_eth->cur_rxbd;
587 status = muram_readw(&rxbd->status);
588
589 while (!(status & RxBD_EMPTY)) {
590 if (!(status & RxBD_ERROR)) {
591 buf_hi = muram_readw(&rxbd->buf_ptr_hi);
592 buf_lo = in_be32(&rxbd->buf_ptr_lo);
593 data = (u8 *)((ulong)(buf_hi << 16) << 16 | buf_lo);
594 len = muram_readw(&rxbd->len);
595 net_process_received_packet(data, len);
596 } else {
597 printf("%s: Rx error\n", dev->name);
598 ret = 0;
599 }
600
601 /* clear the RxBDs */
602 muram_writew(&rxbd->status, RxBD_EMPTY);
603 muram_writew(&rxbd->len, 0);
604 sync();
605
606 /* advance RxBD */
607 rxbd++;
608 rxbd_base = (struct fm_port_bd *)fm_eth->rx_bd_ring;
609 if (rxbd >= (rxbd_base + RX_BD_RING_SIZE))
610 rxbd = rxbd_base;
611 /* read next status */
612 status = muram_readw(&rxbd->status);
613
614 /* update RxQD */
615 offset_out = muram_readw(&pram->rxqd.offset_out);
616 offset_out += sizeof(struct fm_port_bd);
617 if (offset_out >= muram_readw(&pram->rxqd.bd_ring_size))
618 offset_out = 0;
619 muram_writew(&pram->rxqd.offset_out, offset_out);
620 sync();
621 }
622 fm_eth->cur_rxbd = (void *)rxbd;
623
624 return ret;
625 }
626
fm_eth_init_mac(struct fm_eth * fm_eth,struct ccsr_fman * reg)627 static int fm_eth_init_mac(struct fm_eth *fm_eth, struct ccsr_fman *reg)
628 {
629 struct fsl_enet_mac *mac;
630 int num;
631 void *base, *phyregs = NULL;
632
633 num = fm_eth->num;
634
635 #ifdef CONFIG_SYS_FMAN_V3
636 #ifndef CONFIG_FSL_FM_10GEC_REGULAR_NOTATION
637 if (fm_eth->type == FM_ETH_10G_E) {
638 /* 10GEC1/10GEC2 use mEMAC9/mEMAC10 on T2080/T4240.
639 * 10GEC3/10GEC4 use mEMAC1/mEMAC2 on T2080.
640 * 10GEC1 uses mEMAC1 on T1024.
641 * so it needs to change the num.
642 */
643 if (fm_eth->num >= 2)
644 num -= 2;
645 else
646 num += 8;
647 }
648 #endif
649 base = ®->memac[num].fm_memac;
650 phyregs = ®->memac[num].fm_memac_mdio;
651 #else
652 /* Get the mac registers base address */
653 if (fm_eth->type == FM_ETH_1G_E) {
654 base = ®->mac_1g[num].fm_dtesc;
655 phyregs = ®->mac_1g[num].fm_mdio.miimcfg;
656 } else {
657 base = ®->mac_10g[num].fm_10gec;
658 phyregs = ®->mac_10g[num].fm_10gec_mdio;
659 }
660 #endif
661
662 /* alloc mac controller */
663 mac = malloc(sizeof(struct fsl_enet_mac));
664 if (!mac)
665 return -ENOMEM;
666 memset(mac, 0, sizeof(struct fsl_enet_mac));
667
668 /* save the mac to fm_eth struct */
669 fm_eth->mac = mac;
670
671 #ifdef CONFIG_SYS_FMAN_V3
672 init_memac(mac, base, phyregs, MAX_RXBUF_LEN);
673 #else
674 if (fm_eth->type == FM_ETH_1G_E)
675 init_dtsec(mac, base, phyregs, MAX_RXBUF_LEN);
676 else
677 init_tgec(mac, base, phyregs, MAX_RXBUF_LEN);
678 #endif
679
680 return 0;
681 }
682
init_phy(struct eth_device * dev)683 static int init_phy(struct eth_device *dev)
684 {
685 struct fm_eth *fm_eth = dev->priv;
686 #ifdef CONFIG_PHYLIB
687 struct phy_device *phydev = NULL;
688 u32 supported;
689 #endif
690
691 if (fm_eth->type == FM_ETH_1G_E)
692 dtsec_init_phy(dev);
693
694 #ifdef CONFIG_PHYLIB
695 if (fm_eth->bus) {
696 phydev = phy_connect(fm_eth->bus, fm_eth->phyaddr, dev,
697 fm_eth->enet_if);
698 if (!phydev) {
699 printf("Failed to connect\n");
700 return -1;
701 }
702 } else {
703 return 0;
704 }
705
706 if (fm_eth->type == FM_ETH_1G_E) {
707 supported = (SUPPORTED_10baseT_Half |
708 SUPPORTED_10baseT_Full |
709 SUPPORTED_100baseT_Half |
710 SUPPORTED_100baseT_Full |
711 SUPPORTED_1000baseT_Full);
712 } else {
713 supported = SUPPORTED_10000baseT_Full;
714
715 if (tgec_is_fibre(dev))
716 phydev->port = PORT_FIBRE;
717 }
718
719 phydev->supported &= supported;
720 phydev->advertising = phydev->supported;
721
722 fm_eth->phydev = phydev;
723
724 phy_config(phydev);
725 #endif
726
727 return 0;
728 }
729
fm_eth_initialize(struct ccsr_fman * reg,struct fm_eth_info * info)730 int fm_eth_initialize(struct ccsr_fman *reg, struct fm_eth_info *info)
731 {
732 struct eth_device *dev;
733 struct fm_eth *fm_eth;
734 int i, num = info->num;
735 int ret;
736
737 /* alloc eth device */
738 dev = (struct eth_device *)malloc(sizeof(struct eth_device));
739 if (!dev)
740 return -ENOMEM;
741 memset(dev, 0, sizeof(struct eth_device));
742
743 /* alloc the FMan ethernet private struct */
744 fm_eth = (struct fm_eth *)malloc(sizeof(struct fm_eth));
745 if (!fm_eth)
746 return -ENOMEM;
747 memset(fm_eth, 0, sizeof(struct fm_eth));
748
749 /* save off some things we need from the info struct */
750 fm_eth->fm_index = info->index - 1; /* keep as 0 based for muram */
751 fm_eth->num = num;
752 fm_eth->type = info->type;
753
754 fm_eth->rx_port = (void *)®->port[info->rx_port_id - 1].fm_bmi;
755 fm_eth->tx_port = (void *)®->port[info->tx_port_id - 1].fm_bmi;
756
757 /* set the ethernet max receive length */
758 fm_eth->max_rx_len = MAX_RXBUF_LEN;
759
760 /* init global mac structure */
761 ret = fm_eth_init_mac(fm_eth, reg);
762 if (ret)
763 return ret;
764
765 /* keep same as the manual, we call FMAN1, FMAN2, DTSEC1, DTSEC2, etc */
766 if (fm_eth->type == FM_ETH_1G_E)
767 sprintf(dev->name, "FM%d@DTSEC%d", info->index, num + 1);
768 else
769 sprintf(dev->name, "FM%d@TGEC%d", info->index, num + 1);
770
771 devlist[num_controllers++] = dev;
772 dev->iobase = 0;
773 dev->priv = (void *)fm_eth;
774 dev->init = fm_eth_open;
775 dev->halt = fm_eth_halt;
776 dev->send = fm_eth_send;
777 dev->recv = fm_eth_recv;
778 fm_eth->dev = dev;
779 fm_eth->bus = info->bus;
780 fm_eth->phyaddr = info->phy_addr;
781 fm_eth->enet_if = info->enet_if;
782
783 /* startup the FM im */
784 ret = fm_eth_startup(fm_eth);
785 if (ret)
786 return ret;
787
788 init_phy(dev);
789
790 /* clear the ethernet address */
791 for (i = 0; i < 6; i++)
792 dev->enetaddr[i] = 0;
793 eth_register(dev);
794
795 return 0;
796 }
797