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wdenk42d1f032003-10-15 23:53:47 +00001/*
wdenk97d80fc2004-06-09 00:34:46 +00002 * Freescale Three Speed Ethernet Controller driver
wdenk42d1f032003-10-15 23:53:47 +00003 *
4 * This software may be used and distributed according to the
5 * terms of the GNU Public License, Version 2, incorporated
6 * herein by reference.
7 *
Claudiu Manoilaec84bf2013-09-30 12:44:42 +03008 * Copyright 2004-2011, 2013 Freescale Semiconductor, Inc.
wdenk42d1f032003-10-15 23:53:47 +00009 * (C) Copyright 2003, Motorola, Inc.
wdenk42d1f032003-10-15 23:53:47 +000010 * author Andy Fleming
11 *
12 */
13
14#include <config.h>
wdenk42d1f032003-10-15 23:53:47 +000015#include <common.h>
16#include <malloc.h>
17#include <net.h>
18#include <command.h>
Andy Flemingdd3d1f52008-08-31 16:33:25 -050019#include <tsec.h>
Andy Fleming063c1262011-04-08 02:10:54 -050020#include <fsl_mdio.h>
Kim Phillips0d071cd2009-08-24 14:32:26 -050021#include <asm/errno.h>
chenhui zhaoaada81d2011-10-03 08:38:50 -050022#include <asm/processor.h>
wdenk42d1f032003-10-15 23:53:47 +000023
Wolfgang Denkd87080b2006-03-31 18:32:53 +020024DECLARE_GLOBAL_DATA_PTR;
25
Marian Balakowicz63ff0042005-10-28 22:30:33 +020026#define TX_BUF_CNT 2
wdenk42d1f032003-10-15 23:53:47 +000027
Claudiu Manoil18b338f2013-09-30 12:44:44 +030028static uint rx_idx; /* index of the current RX buffer */
29static uint tx_idx; /* index of the current TX buffer */
wdenk42d1f032003-10-15 23:53:47 +000030
wdenk42d1f032003-10-15 23:53:47 +000031#ifdef __GNUC__
Claudiu Manoil9c9141f2013-10-04 19:13:53 +030032static struct txbd8 __iomem txbd[TX_BUF_CNT] __aligned(8);
33static struct rxbd8 __iomem rxbd[PKTBUFSRX] __aligned(8);
34
wdenk42d1f032003-10-15 23:53:47 +000035#else
36#error "rtx must be 64-bit aligned"
37#endif
38
Joe Hershbergerc8a60b52012-05-21 09:46:36 +000039static int tsec_send(struct eth_device *dev, void *packet, int length);
chenhui zhaoaada81d2011-10-03 08:38:50 -050040
Andy Fleming75b9d4a2008-08-31 16:33:26 -050041/* Default initializations for TSEC controllers. */
42
43static struct tsec_info_struct tsec_info[] = {
44#ifdef CONFIG_TSEC1
45 STD_TSEC_INFO(1), /* TSEC1 */
46#endif
47#ifdef CONFIG_TSEC2
48 STD_TSEC_INFO(2), /* TSEC2 */
49#endif
50#ifdef CONFIG_MPC85XX_FEC
51 {
Claudiu Manoilaec84bf2013-09-30 12:44:42 +030052 .regs = TSEC_GET_REGS(2, 0x2000),
Andy Fleming75b9d4a2008-08-31 16:33:26 -050053 .devname = CONFIG_MPC85XX_FEC_NAME,
54 .phyaddr = FEC_PHY_ADDR,
Andy Fleming063c1262011-04-08 02:10:54 -050055 .flags = FEC_FLAGS,
56 .mii_devname = DEFAULT_MII_NAME
Andy Fleming75b9d4a2008-08-31 16:33:26 -050057 }, /* FEC */
58#endif
59#ifdef CONFIG_TSEC3
60 STD_TSEC_INFO(3), /* TSEC3 */
61#endif
62#ifdef CONFIG_TSEC4
63 STD_TSEC_INFO(4), /* TSEC4 */
64#endif
65};
66
Andy Fleming2abe3612008-08-31 16:33:27 -050067#define TBIANA_SETTINGS ( \
68 TBIANA_ASYMMETRIC_PAUSE \
69 | TBIANA_SYMMETRIC_PAUSE \
70 | TBIANA_FULL_DUPLEX \
71 )
72
Felix Radensky90b5bf22010-06-28 01:57:39 +030073/* By default force the TBI PHY into 1000Mbps full duplex when in SGMII mode */
74#ifndef CONFIG_TSEC_TBICR_SETTINGS
Kumar Gala72c96a62010-12-01 22:55:54 -060075#define CONFIG_TSEC_TBICR_SETTINGS ( \
Andy Fleming2abe3612008-08-31 16:33:27 -050076 TBICR_PHY_RESET \
Kumar Gala72c96a62010-12-01 22:55:54 -060077 | TBICR_ANEG_ENABLE \
Andy Fleming2abe3612008-08-31 16:33:27 -050078 | TBICR_FULL_DUPLEX \
79 | TBICR_SPEED1_SET \
80 )
Felix Radensky90b5bf22010-06-28 01:57:39 +030081#endif /* CONFIG_TSEC_TBICR_SETTINGS */
Peter Tyser46e91672009-11-03 17:52:07 -060082
Andy Fleming2abe3612008-08-31 16:33:27 -050083/* Configure the TBI for SGMII operation */
84static void tsec_configure_serdes(struct tsec_private *priv)
85{
Peter Tyserc6dbdfd2009-11-09 13:09:46 -060086 /* Access TBI PHY registers at given TSEC register offset as opposed
87 * to the register offset used for external PHY accesses */
Andy Fleming063c1262011-04-08 02:10:54 -050088 tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
89 0, TBI_ANA, TBIANA_SETTINGS);
90 tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
91 0, TBI_TBICON, TBICON_CLK_SELECT);
92 tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa),
93 0, TBI_CR, CONFIG_TSEC_TBICR_SETTINGS);
Andy Fleming2abe3612008-08-31 16:33:27 -050094}
michael.firth@bt.com55fe7c52008-01-16 11:40:51 +000095
David Updegraff53a5c422007-06-11 10:41:07 -050096#ifdef CONFIG_MCAST_TFTP
97
98/* CREDITS: linux gianfar driver, slightly adjusted... thanx. */
99
100/* Set the appropriate hash bit for the given addr */
101
102/* The algorithm works like so:
103 * 1) Take the Destination Address (ie the multicast address), and
104 * do a CRC on it (little endian), and reverse the bits of the
105 * result.
106 * 2) Use the 8 most significant bits as a hash into a 256-entry
107 * table. The table is controlled through 8 32-bit registers:
Claudiu Manoil876d4512013-09-30 12:44:40 +0300108 * gaddr0-7. gaddr0's MSB is entry 0, and gaddr7's LSB is entry
109 * 255. This means that the 3 most significant bits in the
David Updegraff53a5c422007-06-11 10:41:07 -0500110 * hash index which gaddr register to use, and the 5 other bits
111 * indicate which bit (assuming an IBM numbering scheme, which
Claudiu Manoil876d4512013-09-30 12:44:40 +0300112 * for PowerPC (tm) is usually the case) in the register holds
David Updegraff53a5c422007-06-11 10:41:07 -0500113 * the entry. */
114static int
Claudiu Manoil9c4cffa2013-09-30 12:44:39 +0300115tsec_mcast_addr(struct eth_device *dev, const u8 *mcast_mac, u8 set)
David Updegraff53a5c422007-06-11 10:41:07 -0500116{
Claudiu Manoilb2002042013-09-30 12:44:41 +0300117 struct tsec_private *priv = (struct tsec_private *)dev->priv;
Claudiu Manoil876d4512013-09-30 12:44:40 +0300118 struct tsec __iomem *regs = priv->regs;
119 u32 result, value;
120 u8 whichbit, whichreg;
David Updegraff53a5c422007-06-11 10:41:07 -0500121
Claudiu Manoil876d4512013-09-30 12:44:40 +0300122 result = ether_crc(MAC_ADDR_LEN, mcast_mac);
123 whichbit = (result >> 24) & 0x1f; /* the 5 LSB = which bit to set */
124 whichreg = result >> 29; /* the 3 MSB = which reg to set it in */
David Updegraff53a5c422007-06-11 10:41:07 -0500125
Claudiu Manoil876d4512013-09-30 12:44:40 +0300126 value = 1 << (31-whichbit);
David Updegraff53a5c422007-06-11 10:41:07 -0500127
Claudiu Manoil876d4512013-09-30 12:44:40 +0300128 if (set)
129 setbits_be32(&regs->hash.gaddr0 + whichreg, value);
130 else
131 clrbits_be32(&regs->hash.gaddr0 + whichreg, value);
132
David Updegraff53a5c422007-06-11 10:41:07 -0500133 return 0;
134}
135#endif /* Multicast TFTP ? */
Mingkai Hu90751912011-01-27 12:52:46 +0800136
137/* Initialized required registers to appropriate values, zeroing
138 * those we don't care about (unless zero is bad, in which case,
139 * choose a more appropriate value)
140 */
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300141static void init_registers(struct tsec __iomem *regs)
Mingkai Hu90751912011-01-27 12:52:46 +0800142{
143 /* Clear IEVENT */
144 out_be32(&regs->ievent, IEVENT_INIT_CLEAR);
145
146 out_be32(&regs->imask, IMASK_INIT_CLEAR);
147
148 out_be32(&regs->hash.iaddr0, 0);
149 out_be32(&regs->hash.iaddr1, 0);
150 out_be32(&regs->hash.iaddr2, 0);
151 out_be32(&regs->hash.iaddr3, 0);
152 out_be32(&regs->hash.iaddr4, 0);
153 out_be32(&regs->hash.iaddr5, 0);
154 out_be32(&regs->hash.iaddr6, 0);
155 out_be32(&regs->hash.iaddr7, 0);
156
157 out_be32(&regs->hash.gaddr0, 0);
158 out_be32(&regs->hash.gaddr1, 0);
159 out_be32(&regs->hash.gaddr2, 0);
160 out_be32(&regs->hash.gaddr3, 0);
161 out_be32(&regs->hash.gaddr4, 0);
162 out_be32(&regs->hash.gaddr5, 0);
163 out_be32(&regs->hash.gaddr6, 0);
164 out_be32(&regs->hash.gaddr7, 0);
165
166 out_be32(&regs->rctrl, 0x00000000);
167
168 /* Init RMON mib registers */
Claudiu Manoil82ef75c2013-09-30 12:44:46 +0300169 memset((void *)&regs->rmon, 0, sizeof(regs->rmon));
Mingkai Hu90751912011-01-27 12:52:46 +0800170
171 out_be32(&regs->rmon.cam1, 0xffffffff);
172 out_be32(&regs->rmon.cam2, 0xffffffff);
173
174 out_be32(&regs->mrblr, MRBLR_INIT_SETTINGS);
175
176 out_be32(&regs->minflr, MINFLR_INIT_SETTINGS);
177
178 out_be32(&regs->attr, ATTR_INIT_SETTINGS);
179 out_be32(&regs->attreli, ATTRELI_INIT_SETTINGS);
180
181}
182
183/* Configure maccfg2 based on negotiated speed and duplex
184 * reported by PHY handling code
185 */
Andy Fleming063c1262011-04-08 02:10:54 -0500186static void adjust_link(struct tsec_private *priv, struct phy_device *phydev)
Mingkai Hu90751912011-01-27 12:52:46 +0800187{
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300188 struct tsec __iomem *regs = priv->regs;
Mingkai Hu90751912011-01-27 12:52:46 +0800189 u32 ecntrl, maccfg2;
190
Andy Fleming063c1262011-04-08 02:10:54 -0500191 if (!phydev->link) {
192 printf("%s: No link.\n", phydev->dev->name);
Mingkai Hu90751912011-01-27 12:52:46 +0800193 return;
194 }
195
196 /* clear all bits relative with interface mode */
197 ecntrl = in_be32(&regs->ecntrl);
198 ecntrl &= ~ECNTRL_R100;
199
200 maccfg2 = in_be32(&regs->maccfg2);
201 maccfg2 &= ~(MACCFG2_IF | MACCFG2_FULL_DUPLEX);
202
Andy Fleming063c1262011-04-08 02:10:54 -0500203 if (phydev->duplex)
Mingkai Hu90751912011-01-27 12:52:46 +0800204 maccfg2 |= MACCFG2_FULL_DUPLEX;
205
Andy Fleming063c1262011-04-08 02:10:54 -0500206 switch (phydev->speed) {
Mingkai Hu90751912011-01-27 12:52:46 +0800207 case 1000:
208 maccfg2 |= MACCFG2_GMII;
209 break;
210 case 100:
211 case 10:
212 maccfg2 |= MACCFG2_MII;
213
214 /* Set R100 bit in all modes although
215 * it is only used in RGMII mode
216 */
Andy Fleming063c1262011-04-08 02:10:54 -0500217 if (phydev->speed == 100)
Mingkai Hu90751912011-01-27 12:52:46 +0800218 ecntrl |= ECNTRL_R100;
219 break;
220 default:
Andy Fleming063c1262011-04-08 02:10:54 -0500221 printf("%s: Speed was bad\n", phydev->dev->name);
Mingkai Hu90751912011-01-27 12:52:46 +0800222 break;
223 }
224
225 out_be32(&regs->ecntrl, ecntrl);
226 out_be32(&regs->maccfg2, maccfg2);
227
Andy Fleming063c1262011-04-08 02:10:54 -0500228 printf("Speed: %d, %s duplex%s\n", phydev->speed,
229 (phydev->duplex) ? "full" : "half",
230 (phydev->port == PORT_FIBRE) ? ", fiber mode" : "");
Mingkai Hu90751912011-01-27 12:52:46 +0800231}
232
chenhui zhaoaada81d2011-10-03 08:38:50 -0500233#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
234/*
235 * When MACCFG1[Rx_EN] is enabled during system boot as part
236 * of the eTSEC port initialization sequence,
237 * the eTSEC Rx logic may not be properly initialized.
238 */
239void redundant_init(struct eth_device *dev)
240{
241 struct tsec_private *priv = dev->priv;
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300242 struct tsec __iomem *regs = priv->regs;
chenhui zhaoaada81d2011-10-03 08:38:50 -0500243 uint t, count = 0;
244 int fail = 1;
245 static const u8 pkt[] = {
246 0x00, 0x1e, 0x4f, 0x12, 0xcb, 0x2c, 0x00, 0x25,
247 0x64, 0xbb, 0xd1, 0xab, 0x08, 0x00, 0x45, 0x00,
248 0x00, 0x5c, 0xdd, 0x22, 0x00, 0x00, 0x80, 0x01,
249 0x1f, 0x71, 0x0a, 0xc1, 0x14, 0x22, 0x0a, 0xc1,
250 0x14, 0x6a, 0x08, 0x00, 0xef, 0x7e, 0x02, 0x00,
251 0x94, 0x05, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
252 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e,
253 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
254 0x77, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
255 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
256 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
257 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,
258 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70,
259 0x71, 0x72};
260
261 /* Enable promiscuous mode */
262 setbits_be32(&regs->rctrl, 0x8);
263 /* Enable loopback mode */
264 setbits_be32(&regs->maccfg1, MACCFG1_LOOPBACK);
265 /* Enable transmit and receive */
266 setbits_be32(&regs->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN);
267
268 /* Tell the DMA it is clear to go */
269 setbits_be32(&regs->dmactrl, DMACTRL_INIT_SETTINGS);
270 out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
271 out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
272 clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
273
274 do {
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300275 uint16_t status;
chenhui zhaoaada81d2011-10-03 08:38:50 -0500276 tsec_send(dev, (void *)pkt, sizeof(pkt));
277
278 /* Wait for buffer to be received */
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300279 for (t = 0; in_be16(&rxbd[rx_idx].status) & RXBD_EMPTY; t++) {
chenhui zhaoaada81d2011-10-03 08:38:50 -0500280 if (t >= 10 * TOUT_LOOP) {
281 printf("%s: tsec: rx error\n", dev->name);
282 break;
283 }
284 }
285
Claudiu Manoil18b338f2013-09-30 12:44:44 +0300286 if (!memcmp(pkt, (void *)NetRxPackets[rx_idx], sizeof(pkt)))
chenhui zhaoaada81d2011-10-03 08:38:50 -0500287 fail = 0;
288
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300289 out_be16(&rxbd[rx_idx].length, 0);
290 status = RXBD_EMPTY;
291 if ((rx_idx + 1) == PKTBUFSRX)
292 status |= RXBD_WRAP;
293 out_be16(&rxbd[rx_idx].status, status);
Claudiu Manoil18b338f2013-09-30 12:44:44 +0300294 rx_idx = (rx_idx + 1) % PKTBUFSRX;
chenhui zhaoaada81d2011-10-03 08:38:50 -0500295
296 if (in_be32(&regs->ievent) & IEVENT_BSY) {
297 out_be32(&regs->ievent, IEVENT_BSY);
298 out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
299 }
300 if (fail) {
301 printf("loopback recv packet error!\n");
302 clrbits_be32(&regs->maccfg1, MACCFG1_RX_EN);
303 udelay(1000);
304 setbits_be32(&regs->maccfg1, MACCFG1_RX_EN);
305 }
306 } while ((count++ < 4) && (fail == 1));
307
308 if (fail)
309 panic("eTSEC init fail!\n");
310 /* Disable promiscuous mode */
311 clrbits_be32(&regs->rctrl, 0x8);
312 /* Disable loopback mode */
313 clrbits_be32(&regs->maccfg1, MACCFG1_LOOPBACK);
314}
315#endif
316
Mingkai Hu90751912011-01-27 12:52:46 +0800317/* Set up the buffers and their descriptors, and bring up the
318 * interface
319 */
320static void startup_tsec(struct eth_device *dev)
321{
Mingkai Hu90751912011-01-27 12:52:46 +0800322 struct tsec_private *priv = (struct tsec_private *)dev->priv;
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300323 struct tsec __iomem *regs = priv->regs;
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300324 uint16_t status;
325 int i;
Mingkai Hu90751912011-01-27 12:52:46 +0800326
Andy Fleming063c1262011-04-08 02:10:54 -0500327 /* reset the indices to zero */
Claudiu Manoil18b338f2013-09-30 12:44:44 +0300328 rx_idx = 0;
329 tx_idx = 0;
chenhui zhaoaada81d2011-10-03 08:38:50 -0500330#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
331 uint svr;
332#endif
Andy Fleming063c1262011-04-08 02:10:54 -0500333
Mingkai Hu90751912011-01-27 12:52:46 +0800334 /* Point to the buffer descriptors */
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300335 out_be32(&regs->tbase, (u32)&txbd[0]);
336 out_be32(&regs->rbase, (u32)&rxbd[0]);
Mingkai Hu90751912011-01-27 12:52:46 +0800337
338 /* Initialize the Rx Buffer descriptors */
339 for (i = 0; i < PKTBUFSRX; i++) {
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300340 out_be16(&rxbd[i].status, RXBD_EMPTY);
341 out_be16(&rxbd[i].length, 0);
342 out_be32(&rxbd[i].bufptr, (u32)NetRxPackets[i]);
Mingkai Hu90751912011-01-27 12:52:46 +0800343 }
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300344 status = in_be16(&rxbd[PKTBUFSRX - 1].status);
345 out_be16(&rxbd[PKTBUFSRX - 1].status, status | RXBD_WRAP);
Mingkai Hu90751912011-01-27 12:52:46 +0800346
347 /* Initialize the TX Buffer Descriptors */
348 for (i = 0; i < TX_BUF_CNT; i++) {
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300349 out_be16(&txbd[i].status, 0);
350 out_be16(&txbd[i].length, 0);
351 out_be32(&txbd[i].bufptr, 0);
Mingkai Hu90751912011-01-27 12:52:46 +0800352 }
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300353 status = in_be16(&txbd[TX_BUF_CNT - 1].status);
354 out_be16(&txbd[TX_BUF_CNT - 1].status, status | TXBD_WRAP);
Mingkai Hu90751912011-01-27 12:52:46 +0800355
chenhui zhaoaada81d2011-10-03 08:38:50 -0500356#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129
357 svr = get_svr();
358 if ((SVR_MAJ(svr) == 1) || IS_SVR_REV(svr, 2, 0))
359 redundant_init(dev);
360#endif
Mingkai Hu90751912011-01-27 12:52:46 +0800361 /* Enable Transmit and Receive */
362 setbits_be32(&regs->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN);
363
364 /* Tell the DMA it is clear to go */
365 setbits_be32(&regs->dmactrl, DMACTRL_INIT_SETTINGS);
366 out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
367 out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
368 clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
369}
370
371/* This returns the status bits of the device. The return value
372 * is never checked, and this is what the 8260 driver did, so we
373 * do the same. Presumably, this would be zero if there were no
374 * errors
375 */
Joe Hershbergerc8a60b52012-05-21 09:46:36 +0000376static int tsec_send(struct eth_device *dev, void *packet, int length)
Mingkai Hu90751912011-01-27 12:52:46 +0800377{
Mingkai Hu90751912011-01-27 12:52:46 +0800378 struct tsec_private *priv = (struct tsec_private *)dev->priv;
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300379 struct tsec __iomem *regs = priv->regs;
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300380 uint16_t status;
381 int result = 0;
382 int i;
Mingkai Hu90751912011-01-27 12:52:46 +0800383
384 /* Find an empty buffer descriptor */
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300385 for (i = 0; in_be16(&txbd[tx_idx].status) & TXBD_READY; i++) {
Mingkai Hu90751912011-01-27 12:52:46 +0800386 if (i >= TOUT_LOOP) {
387 debug("%s: tsec: tx buffers full\n", dev->name);
388 return result;
389 }
390 }
391
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300392 out_be32(&txbd[tx_idx].bufptr, (u32)packet);
393 out_be16(&txbd[tx_idx].length, length);
394 status = in_be16(&txbd[tx_idx].status);
395 out_be16(&txbd[tx_idx].status, status |
396 (TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT));
Mingkai Hu90751912011-01-27 12:52:46 +0800397
398 /* Tell the DMA to go */
399 out_be32(&regs->tstat, TSTAT_CLEAR_THALT);
400
401 /* Wait for buffer to be transmitted */
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300402 for (i = 0; in_be16(&txbd[tx_idx].status) & TXBD_READY; i++) {
Mingkai Hu90751912011-01-27 12:52:46 +0800403 if (i >= TOUT_LOOP) {
404 debug("%s: tsec: tx error\n", dev->name);
405 return result;
406 }
407 }
408
Claudiu Manoil18b338f2013-09-30 12:44:44 +0300409 tx_idx = (tx_idx + 1) % TX_BUF_CNT;
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300410 result = in_be16(&txbd[tx_idx].status) & TXBD_STATS;
Mingkai Hu90751912011-01-27 12:52:46 +0800411
412 return result;
413}
414
415static int tsec_recv(struct eth_device *dev)
416{
Mingkai Hu90751912011-01-27 12:52:46 +0800417 struct tsec_private *priv = (struct tsec_private *)dev->priv;
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300418 struct tsec __iomem *regs = priv->regs;
Mingkai Hu90751912011-01-27 12:52:46 +0800419
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300420 while (!(in_be16(&rxbd[rx_idx].status) & RXBD_EMPTY)) {
421 int length = in_be16(&rxbd[rx_idx].length);
422 uint16_t status = in_be16(&rxbd[rx_idx].status);
Mingkai Hu90751912011-01-27 12:52:46 +0800423
424 /* Send the packet up if there were no errors */
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300425 if (!(status & RXBD_STATS))
Claudiu Manoil18b338f2013-09-30 12:44:44 +0300426 NetReceive(NetRxPackets[rx_idx], length - 4);
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300427 else
428 printf("Got error %x\n", (status & RXBD_STATS));
Mingkai Hu90751912011-01-27 12:52:46 +0800429
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300430 out_be16(&rxbd[rx_idx].length, 0);
Mingkai Hu90751912011-01-27 12:52:46 +0800431
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300432 status = RXBD_EMPTY;
Mingkai Hu90751912011-01-27 12:52:46 +0800433 /* Set the wrap bit if this is the last element in the list */
Claudiu Manoil9c9141f2013-10-04 19:13:53 +0300434 if ((rx_idx + 1) == PKTBUFSRX)
435 status |= RXBD_WRAP;
436 out_be16(&rxbd[rx_idx].status, status);
Mingkai Hu90751912011-01-27 12:52:46 +0800437
Claudiu Manoil18b338f2013-09-30 12:44:44 +0300438 rx_idx = (rx_idx + 1) % PKTBUFSRX;
Mingkai Hu90751912011-01-27 12:52:46 +0800439 }
440
441 if (in_be32(&regs->ievent) & IEVENT_BSY) {
442 out_be32(&regs->ievent, IEVENT_BSY);
443 out_be32(&regs->rstat, RSTAT_CLEAR_RHALT);
444 }
445
446 return -1;
447
448}
449
450/* Stop the interface */
451static void tsec_halt(struct eth_device *dev)
452{
453 struct tsec_private *priv = (struct tsec_private *)dev->priv;
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300454 struct tsec __iomem *regs = priv->regs;
Mingkai Hu90751912011-01-27 12:52:46 +0800455
456 clrbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
457 setbits_be32(&regs->dmactrl, DMACTRL_GRS | DMACTRL_GTS);
458
459 while ((in_be32(&regs->ievent) & (IEVENT_GRSC | IEVENT_GTSC))
460 != (IEVENT_GRSC | IEVENT_GTSC))
461 ;
462
463 clrbits_be32(&regs->maccfg1, MACCFG1_TX_EN | MACCFG1_RX_EN);
464
465 /* Shut down the PHY, as needed */
Andy Fleming063c1262011-04-08 02:10:54 -0500466 phy_shutdown(priv->phydev);
Mingkai Hu90751912011-01-27 12:52:46 +0800467}
468
469/* Initializes data structures and registers for the controller,
470 * and brings the interface up. Returns the link status, meaning
471 * that it returns success if the link is up, failure otherwise.
472 * This allows u-boot to find the first active controller.
473 */
474static int tsec_init(struct eth_device *dev, bd_t * bd)
475{
476 uint tempval;
477 char tmpbuf[MAC_ADDR_LEN];
478 int i;
479 struct tsec_private *priv = (struct tsec_private *)dev->priv;
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300480 struct tsec __iomem *regs = priv->regs;
Timur Tabi11af8d62012-07-09 08:52:43 +0000481 int ret;
Mingkai Hu90751912011-01-27 12:52:46 +0800482
483 /* Make sure the controller is stopped */
484 tsec_halt(dev);
485
486 /* Init MACCFG2. Defaults to GMII */
487 out_be32(&regs->maccfg2, MACCFG2_INIT_SETTINGS);
488
489 /* Init ECNTRL */
490 out_be32(&regs->ecntrl, ECNTRL_INIT_SETTINGS);
491
492 /* Copy the station address into the address registers.
493 * Backwards, because little endian MACS are dumb */
494 for (i = 0; i < MAC_ADDR_LEN; i++)
495 tmpbuf[MAC_ADDR_LEN - 1 - i] = dev->enetaddr[i];
496
497 tempval = (tmpbuf[0] << 24) | (tmpbuf[1] << 16) | (tmpbuf[2] << 8) |
498 tmpbuf[3];
499
500 out_be32(&regs->macstnaddr1, tempval);
501
502 tempval = *((uint *) (tmpbuf + 4));
503
504 out_be32(&regs->macstnaddr2, tempval);
505
Mingkai Hu90751912011-01-27 12:52:46 +0800506 /* Clear out (for the most part) the other registers */
507 init_registers(regs);
508
509 /* Ready the device for tx/rx */
510 startup_tsec(dev);
511
Andy Fleming063c1262011-04-08 02:10:54 -0500512 /* Start up the PHY */
Timur Tabi11af8d62012-07-09 08:52:43 +0000513 ret = phy_startup(priv->phydev);
514 if (ret) {
515 printf("Could not initialize PHY %s\n",
516 priv->phydev->dev->name);
517 return ret;
518 }
Andy Fleming063c1262011-04-08 02:10:54 -0500519
520 adjust_link(priv, priv->phydev);
521
Mingkai Hu90751912011-01-27 12:52:46 +0800522 /* If there's no link, fail */
Andy Fleming063c1262011-04-08 02:10:54 -0500523 return priv->phydev->link ? 0 : -1;
Mingkai Hu90751912011-01-27 12:52:46 +0800524}
525
Andy Fleming063c1262011-04-08 02:10:54 -0500526static phy_interface_t tsec_get_interface(struct tsec_private *priv)
527{
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300528 struct tsec __iomem *regs = priv->regs;
Andy Fleming063c1262011-04-08 02:10:54 -0500529 u32 ecntrl;
530
531 ecntrl = in_be32(&regs->ecntrl);
532
533 if (ecntrl & ECNTRL_SGMII_MODE)
534 return PHY_INTERFACE_MODE_SGMII;
535
536 if (ecntrl & ECNTRL_TBI_MODE) {
537 if (ecntrl & ECNTRL_REDUCED_MODE)
538 return PHY_INTERFACE_MODE_RTBI;
539 else
540 return PHY_INTERFACE_MODE_TBI;
541 }
542
543 if (ecntrl & ECNTRL_REDUCED_MODE) {
544 if (ecntrl & ECNTRL_REDUCED_MII_MODE)
545 return PHY_INTERFACE_MODE_RMII;
546 else {
547 phy_interface_t interface = priv->interface;
548
549 /*
550 * This isn't autodetected, so it must
551 * be set by the platform code.
552 */
553 if ((interface == PHY_INTERFACE_MODE_RGMII_ID) ||
554 (interface == PHY_INTERFACE_MODE_RGMII_TXID) ||
555 (interface == PHY_INTERFACE_MODE_RGMII_RXID))
556 return interface;
557
558 return PHY_INTERFACE_MODE_RGMII;
559 }
560 }
561
562 if (priv->flags & TSEC_GIGABIT)
563 return PHY_INTERFACE_MODE_GMII;
564
565 return PHY_INTERFACE_MODE_MII;
566}
567
568
Mingkai Hu90751912011-01-27 12:52:46 +0800569/* Discover which PHY is attached to the device, and configure it
570 * properly. If the PHY is not recognized, then return 0
571 * (failure). Otherwise, return 1
572 */
573static int init_phy(struct eth_device *dev)
574{
575 struct tsec_private *priv = (struct tsec_private *)dev->priv;
Andy Fleming063c1262011-04-08 02:10:54 -0500576 struct phy_device *phydev;
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300577 struct tsec __iomem *regs = priv->regs;
Andy Fleming063c1262011-04-08 02:10:54 -0500578 u32 supported = (SUPPORTED_10baseT_Half |
579 SUPPORTED_10baseT_Full |
580 SUPPORTED_100baseT_Half |
581 SUPPORTED_100baseT_Full);
582
583 if (priv->flags & TSEC_GIGABIT)
584 supported |= SUPPORTED_1000baseT_Full;
Mingkai Hu90751912011-01-27 12:52:46 +0800585
586 /* Assign a Physical address to the TBI */
587 out_be32(&regs->tbipa, CONFIG_SYS_TBIPA_VALUE);
588
Andy Fleming063c1262011-04-08 02:10:54 -0500589 priv->interface = tsec_get_interface(priv);
Mingkai Hu90751912011-01-27 12:52:46 +0800590
Andy Fleming063c1262011-04-08 02:10:54 -0500591 if (priv->interface == PHY_INTERFACE_MODE_SGMII)
Mingkai Hu90751912011-01-27 12:52:46 +0800592 tsec_configure_serdes(priv);
593
Andy Fleming063c1262011-04-08 02:10:54 -0500594 phydev = phy_connect(priv->bus, priv->phyaddr, dev, priv->interface);
Mingkai Hu90751912011-01-27 12:52:46 +0800595
Andy Fleming063c1262011-04-08 02:10:54 -0500596 phydev->supported &= supported;
597 phydev->advertising = phydev->supported;
598
599 priv->phydev = phydev;
600
601 phy_config(phydev);
Mingkai Hu90751912011-01-27 12:52:46 +0800602
603 return 1;
604}
605
606/* Initialize device structure. Returns success if PHY
607 * initialization succeeded (i.e. if it recognizes the PHY)
608 */
609static int tsec_initialize(bd_t *bis, struct tsec_info_struct *tsec_info)
610{
611 struct eth_device *dev;
612 int i;
613 struct tsec_private *priv;
614
615 dev = (struct eth_device *)malloc(sizeof *dev);
616
617 if (NULL == dev)
618 return 0;
619
620 memset(dev, 0, sizeof *dev);
621
622 priv = (struct tsec_private *)malloc(sizeof(*priv));
623
624 if (NULL == priv)
625 return 0;
626
Mingkai Hu90751912011-01-27 12:52:46 +0800627 priv->regs = tsec_info->regs;
Mingkai Hu90751912011-01-27 12:52:46 +0800628 priv->phyregs_sgmii = tsec_info->miiregs_sgmii;
629
630 priv->phyaddr = tsec_info->phyaddr;
631 priv->flags = tsec_info->flags;
632
633 sprintf(dev->name, tsec_info->devname);
Andy Fleming063c1262011-04-08 02:10:54 -0500634 priv->interface = tsec_info->interface;
635 priv->bus = miiphy_get_dev_by_name(tsec_info->mii_devname);
Mingkai Hu90751912011-01-27 12:52:46 +0800636 dev->iobase = 0;
637 dev->priv = priv;
638 dev->init = tsec_init;
639 dev->halt = tsec_halt;
640 dev->send = tsec_send;
641 dev->recv = tsec_recv;
642#ifdef CONFIG_MCAST_TFTP
643 dev->mcast = tsec_mcast_addr;
644#endif
645
646 /* Tell u-boot to get the addr from the env */
647 for (i = 0; i < 6; i++)
648 dev->enetaddr[i] = 0;
649
650 eth_register(dev);
651
652 /* Reset the MAC */
653 setbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
654 udelay(2); /* Soft Reset must be asserted for 3 TX clocks */
655 clrbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET);
656
Mingkai Hu90751912011-01-27 12:52:46 +0800657 /* Try to initialize PHY here, and return */
658 return init_phy(dev);
659}
660
661/*
662 * Initialize all the TSEC devices
663 *
664 * Returns the number of TSEC devices that were initialized
665 */
666int tsec_eth_init(bd_t *bis, struct tsec_info_struct *tsecs, int num)
667{
668 int i;
669 int ret, count = 0;
670
671 for (i = 0; i < num; i++) {
672 ret = tsec_initialize(bis, &tsecs[i]);
673 if (ret > 0)
674 count += ret;
675 }
676
677 return count;
678}
679
680int tsec_standard_init(bd_t *bis)
681{
Andy Fleming063c1262011-04-08 02:10:54 -0500682 struct fsl_pq_mdio_info info;
683
Claudiu Manoilaec84bf2013-09-30 12:44:42 +0300684 info.regs = TSEC_GET_MDIO_REGS_BASE(1);
Andy Fleming063c1262011-04-08 02:10:54 -0500685 info.name = DEFAULT_MII_NAME;
686
687 fsl_pq_mdio_init(bis, &info);
688
Mingkai Hu90751912011-01-27 12:52:46 +0800689 return tsec_eth_init(bis, tsec_info, ARRAY_SIZE(tsec_info));
690}