Commit | Line | Data |
---|---|---|
86a74ff2 NI |
1 | /* |
2 | * SuperH Ethernet device driver | |
3 | * | |
b0ca2a21 | 4 | * Copyright (C) 2006-2008 Nobuhiro Iwamatsu |
380af9e3 | 5 | * Copyright (C) 2008-2009 Renesas Solutions Corp. |
86a74ff2 NI |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms and conditions of the GNU General Public License, | |
9 | * version 2, as published by the Free Software Foundation. | |
10 | * | |
11 | * This program is distributed in the hope it will be useful, but WITHOUT | |
12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
14 | * more details. | |
15 | * You should have received a copy of the GNU General Public License along with | |
16 | * this program; if not, write to the Free Software Foundation, Inc., | |
17 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | * | |
19 | * The full GNU General Public License is included in this distribution in | |
20 | * the file called "COPYING". | |
21 | */ | |
22 | ||
86a74ff2 NI |
23 | #include <linux/init.h> |
24 | #include <linux/dma-mapping.h> | |
25 | #include <linux/etherdevice.h> | |
26 | #include <linux/delay.h> | |
27 | #include <linux/platform_device.h> | |
28 | #include <linux/mdio-bitbang.h> | |
29 | #include <linux/netdevice.h> | |
30 | #include <linux/phy.h> | |
31 | #include <linux/cache.h> | |
32 | #include <linux/io.h> | |
bcd5149d | 33 | #include <linux/pm_runtime.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
dc19e4e5 | 35 | #include <linux/ethtool.h> |
f568a926 | 36 | #include <asm/cacheflush.h> |
86a74ff2 NI |
37 | |
38 | #include "sh_eth.h" | |
39 | ||
dc19e4e5 NI |
40 | #define SH_ETH_DEF_MSG_ENABLE \ |
41 | (NETIF_MSG_LINK | \ | |
42 | NETIF_MSG_TIMER | \ | |
43 | NETIF_MSG_RX_ERR| \ | |
44 | NETIF_MSG_TX_ERR) | |
45 | ||
380af9e3 | 46 | /* There is CPU dependent code */ |
65ac8851 YS |
47 | #if defined(CONFIG_CPU_SUBTYPE_SH7724) |
48 | #define SH_ETH_RESET_DEFAULT 1 | |
49 | static void sh_eth_set_duplex(struct net_device *ndev) | |
50 | { | |
51 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
65ac8851 YS |
52 | |
53 | if (mdp->duplex) /* Full */ | |
4a55530f | 54 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); |
65ac8851 | 55 | else /* Half */ |
4a55530f | 56 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); |
65ac8851 YS |
57 | } |
58 | ||
59 | static void sh_eth_set_rate(struct net_device *ndev) | |
60 | { | |
61 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
65ac8851 YS |
62 | |
63 | switch (mdp->speed) { | |
64 | case 10: /* 10BASE */ | |
4a55530f | 65 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_RTM, ECMR); |
65ac8851 YS |
66 | break; |
67 | case 100:/* 100BASE */ | |
4a55530f | 68 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_RTM, ECMR); |
65ac8851 YS |
69 | break; |
70 | default: | |
71 | break; | |
72 | } | |
73 | } | |
74 | ||
75 | /* SH7724 */ | |
76 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { | |
77 | .set_duplex = sh_eth_set_duplex, | |
78 | .set_rate = sh_eth_set_rate, | |
79 | ||
80 | .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, | |
81 | .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, | |
82 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x01ff009f, | |
83 | ||
84 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
85 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE | | |
86 | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, | |
87 | .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE, | |
88 | ||
89 | .apr = 1, | |
90 | .mpr = 1, | |
91 | .tpauser = 1, | |
92 | .hw_swap = 1, | |
503914cf MD |
93 | .rpadir = 1, |
94 | .rpadir_value = 0x00020000, /* NET_IP_ALIGN assumed to be 2 */ | |
65ac8851 | 95 | }; |
f29a3d04 | 96 | #elif defined(CONFIG_CPU_SUBTYPE_SH7757) |
8fcd4961 YS |
97 | #define SH_ETH_HAS_BOTH_MODULES 1 |
98 | #define SH_ETH_HAS_TSU 1 | |
f29a3d04 YS |
99 | static void sh_eth_set_duplex(struct net_device *ndev) |
100 | { | |
101 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
f29a3d04 YS |
102 | |
103 | if (mdp->duplex) /* Full */ | |
4a55530f | 104 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); |
f29a3d04 | 105 | else /* Half */ |
4a55530f | 106 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); |
f29a3d04 YS |
107 | } |
108 | ||
109 | static void sh_eth_set_rate(struct net_device *ndev) | |
110 | { | |
111 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
f29a3d04 YS |
112 | |
113 | switch (mdp->speed) { | |
114 | case 10: /* 10BASE */ | |
4a55530f | 115 | sh_eth_write(ndev, 0, RTRATE); |
f29a3d04 YS |
116 | break; |
117 | case 100:/* 100BASE */ | |
4a55530f | 118 | sh_eth_write(ndev, 1, RTRATE); |
f29a3d04 YS |
119 | break; |
120 | default: | |
121 | break; | |
122 | } | |
123 | } | |
124 | ||
125 | /* SH7757 */ | |
126 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { | |
127 | .set_duplex = sh_eth_set_duplex, | |
128 | .set_rate = sh_eth_set_rate, | |
129 | ||
130 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
131 | .rmcr_value = 0x00000001, | |
132 | ||
133 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
134 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE | | |
135 | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, | |
136 | .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE, | |
137 | ||
138 | .apr = 1, | |
139 | .mpr = 1, | |
140 | .tpauser = 1, | |
141 | .hw_swap = 1, | |
142 | .no_ade = 1, | |
143 | }; | |
65ac8851 | 144 | |
8fcd4961 YS |
145 | #define SH_GIGA_ETH_BASE 0xfee00000 |
146 | #define GIGA_MALR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c8) | |
147 | #define GIGA_MAHR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c0) | |
148 | static void sh_eth_chip_reset_giga(struct net_device *ndev) | |
149 | { | |
150 | int i; | |
151 | unsigned long mahr[2], malr[2]; | |
152 | ||
153 | /* save MAHR and MALR */ | |
154 | for (i = 0; i < 2; i++) { | |
155 | malr[i] = readl(GIGA_MALR(i)); | |
156 | mahr[i] = readl(GIGA_MAHR(i)); | |
157 | } | |
158 | ||
159 | /* reset device */ | |
160 | writel(ARSTR_ARSTR, SH_GIGA_ETH_BASE + 0x1800); | |
161 | mdelay(1); | |
162 | ||
163 | /* restore MAHR and MALR */ | |
164 | for (i = 0; i < 2; i++) { | |
165 | writel(malr[i], GIGA_MALR(i)); | |
166 | writel(mahr[i], GIGA_MAHR(i)); | |
167 | } | |
168 | } | |
169 | ||
170 | static int sh_eth_is_gether(struct sh_eth_private *mdp); | |
171 | static void sh_eth_reset(struct net_device *ndev) | |
172 | { | |
173 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
174 | int cnt = 100; | |
175 | ||
176 | if (sh_eth_is_gether(mdp)) { | |
177 | sh_eth_write(ndev, 0x03, EDSR); | |
178 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, | |
179 | EDMR); | |
180 | while (cnt > 0) { | |
181 | if (!(sh_eth_read(ndev, EDMR) & 0x3)) | |
182 | break; | |
183 | mdelay(1); | |
184 | cnt--; | |
185 | } | |
186 | if (cnt < 0) | |
187 | printk(KERN_ERR "Device reset fail\n"); | |
188 | ||
189 | /* Table Init */ | |
190 | sh_eth_write(ndev, 0x0, TDLAR); | |
191 | sh_eth_write(ndev, 0x0, TDFAR); | |
192 | sh_eth_write(ndev, 0x0, TDFXR); | |
193 | sh_eth_write(ndev, 0x0, TDFFR); | |
194 | sh_eth_write(ndev, 0x0, RDLAR); | |
195 | sh_eth_write(ndev, 0x0, RDFAR); | |
196 | sh_eth_write(ndev, 0x0, RDFXR); | |
197 | sh_eth_write(ndev, 0x0, RDFFR); | |
198 | } else { | |
199 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, | |
200 | EDMR); | |
201 | mdelay(3); | |
202 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, | |
203 | EDMR); | |
204 | } | |
205 | } | |
206 | ||
207 | static void sh_eth_set_duplex_giga(struct net_device *ndev) | |
208 | { | |
209 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
210 | ||
211 | if (mdp->duplex) /* Full */ | |
212 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); | |
213 | else /* Half */ | |
214 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); | |
215 | } | |
216 | ||
217 | static void sh_eth_set_rate_giga(struct net_device *ndev) | |
218 | { | |
219 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
220 | ||
221 | switch (mdp->speed) { | |
222 | case 10: /* 10BASE */ | |
223 | sh_eth_write(ndev, 0x00000000, GECMR); | |
224 | break; | |
225 | case 100:/* 100BASE */ | |
226 | sh_eth_write(ndev, 0x00000010, GECMR); | |
227 | break; | |
228 | case 1000: /* 1000BASE */ | |
229 | sh_eth_write(ndev, 0x00000020, GECMR); | |
230 | break; | |
231 | default: | |
232 | break; | |
233 | } | |
234 | } | |
235 | ||
236 | /* SH7757(GETHERC) */ | |
237 | static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = { | |
238 | .chip_reset = sh_eth_chip_reset_giga, | |
239 | .set_duplex = sh_eth_set_duplex_giga, | |
240 | .set_rate = sh_eth_set_rate_giga, | |
241 | ||
242 | .ecsr_value = ECSR_ICD | ECSR_MPD, | |
243 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
244 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
245 | ||
246 | .tx_check = EESR_TC1 | EESR_FTC, | |
247 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \ | |
248 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \ | |
249 | EESR_ECI, | |
250 | .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \ | |
251 | EESR_TFE, | |
252 | .fdr_value = 0x0000072f, | |
253 | .rmcr_value = 0x00000001, | |
254 | ||
255 | .apr = 1, | |
256 | .mpr = 1, | |
257 | .tpauser = 1, | |
258 | .bculr = 1, | |
259 | .hw_swap = 1, | |
260 | .rpadir = 1, | |
261 | .rpadir_value = 2 << 16, | |
262 | .no_trimd = 1, | |
263 | .no_ade = 1, | |
264 | }; | |
265 | ||
266 | static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp) | |
267 | { | |
268 | if (sh_eth_is_gether(mdp)) | |
269 | return &sh_eth_my_cpu_data_giga; | |
270 | else | |
271 | return &sh_eth_my_cpu_data; | |
272 | } | |
273 | ||
65ac8851 | 274 | #elif defined(CONFIG_CPU_SUBTYPE_SH7763) |
380af9e3 YS |
275 | #define SH_ETH_HAS_TSU 1 |
276 | static void sh_eth_chip_reset(struct net_device *ndev) | |
277 | { | |
4986b996 YS |
278 | struct sh_eth_private *mdp = netdev_priv(ndev); |
279 | ||
380af9e3 | 280 | /* reset device */ |
4986b996 | 281 | sh_eth_tsu_write(mdp, ARSTR_ARSTR, ARSTR); |
380af9e3 YS |
282 | mdelay(1); |
283 | } | |
284 | ||
285 | static void sh_eth_reset(struct net_device *ndev) | |
286 | { | |
380af9e3 YS |
287 | int cnt = 100; |
288 | ||
4a55530f | 289 | sh_eth_write(ndev, EDSR_ENALL, EDSR); |
c5ed5368 | 290 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, EDMR); |
380af9e3 | 291 | while (cnt > 0) { |
4a55530f | 292 | if (!(sh_eth_read(ndev, EDMR) & 0x3)) |
380af9e3 YS |
293 | break; |
294 | mdelay(1); | |
295 | cnt--; | |
296 | } | |
890c8c18 | 297 | if (cnt == 0) |
380af9e3 YS |
298 | printk(KERN_ERR "Device reset fail\n"); |
299 | ||
300 | /* Table Init */ | |
4a55530f YS |
301 | sh_eth_write(ndev, 0x0, TDLAR); |
302 | sh_eth_write(ndev, 0x0, TDFAR); | |
303 | sh_eth_write(ndev, 0x0, TDFXR); | |
304 | sh_eth_write(ndev, 0x0, TDFFR); | |
305 | sh_eth_write(ndev, 0x0, RDLAR); | |
306 | sh_eth_write(ndev, 0x0, RDFAR); | |
307 | sh_eth_write(ndev, 0x0, RDFXR); | |
308 | sh_eth_write(ndev, 0x0, RDFFR); | |
380af9e3 YS |
309 | } |
310 | ||
311 | static void sh_eth_set_duplex(struct net_device *ndev) | |
312 | { | |
313 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
380af9e3 YS |
314 | |
315 | if (mdp->duplex) /* Full */ | |
4a55530f | 316 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); |
380af9e3 | 317 | else /* Half */ |
4a55530f | 318 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); |
380af9e3 YS |
319 | } |
320 | ||
321 | static void sh_eth_set_rate(struct net_device *ndev) | |
322 | { | |
323 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
380af9e3 YS |
324 | |
325 | switch (mdp->speed) { | |
326 | case 10: /* 10BASE */ | |
4a55530f | 327 | sh_eth_write(ndev, GECMR_10, GECMR); |
380af9e3 YS |
328 | break; |
329 | case 100:/* 100BASE */ | |
4a55530f | 330 | sh_eth_write(ndev, GECMR_100, GECMR); |
380af9e3 YS |
331 | break; |
332 | case 1000: /* 1000BASE */ | |
4a55530f | 333 | sh_eth_write(ndev, GECMR_1000, GECMR); |
380af9e3 YS |
334 | break; |
335 | default: | |
336 | break; | |
337 | } | |
338 | } | |
339 | ||
340 | /* sh7763 */ | |
341 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { | |
342 | .chip_reset = sh_eth_chip_reset, | |
343 | .set_duplex = sh_eth_set_duplex, | |
344 | .set_rate = sh_eth_set_rate, | |
345 | ||
346 | .ecsr_value = ECSR_ICD | ECSR_MPD, | |
347 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
348 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
349 | ||
350 | .tx_check = EESR_TC1 | EESR_FTC, | |
351 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \ | |
352 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \ | |
353 | EESR_ECI, | |
354 | .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \ | |
355 | EESR_TFE, | |
356 | ||
357 | .apr = 1, | |
358 | .mpr = 1, | |
359 | .tpauser = 1, | |
360 | .bculr = 1, | |
361 | .hw_swap = 1, | |
380af9e3 YS |
362 | .no_trimd = 1, |
363 | .no_ade = 1, | |
4986b996 | 364 | .tsu = 1, |
380af9e3 YS |
365 | }; |
366 | ||
367 | #elif defined(CONFIG_CPU_SUBTYPE_SH7619) | |
368 | #define SH_ETH_RESET_DEFAULT 1 | |
369 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { | |
370 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
371 | ||
372 | .apr = 1, | |
373 | .mpr = 1, | |
374 | .tpauser = 1, | |
375 | .hw_swap = 1, | |
376 | }; | |
377 | #elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) | |
378 | #define SH_ETH_RESET_DEFAULT 1 | |
379 | #define SH_ETH_HAS_TSU 1 | |
380 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { | |
381 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
4986b996 | 382 | .tsu = 1, |
380af9e3 YS |
383 | }; |
384 | #endif | |
385 | ||
386 | static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd) | |
387 | { | |
388 | if (!cd->ecsr_value) | |
389 | cd->ecsr_value = DEFAULT_ECSR_INIT; | |
390 | ||
391 | if (!cd->ecsipr_value) | |
392 | cd->ecsipr_value = DEFAULT_ECSIPR_INIT; | |
393 | ||
394 | if (!cd->fcftr_value) | |
395 | cd->fcftr_value = DEFAULT_FIFO_F_D_RFF | \ | |
396 | DEFAULT_FIFO_F_D_RFD; | |
397 | ||
398 | if (!cd->fdr_value) | |
399 | cd->fdr_value = DEFAULT_FDR_INIT; | |
400 | ||
401 | if (!cd->rmcr_value) | |
402 | cd->rmcr_value = DEFAULT_RMCR_VALUE; | |
403 | ||
404 | if (!cd->tx_check) | |
405 | cd->tx_check = DEFAULT_TX_CHECK; | |
406 | ||
407 | if (!cd->eesr_err_check) | |
408 | cd->eesr_err_check = DEFAULT_EESR_ERR_CHECK; | |
409 | ||
410 | if (!cd->tx_error_check) | |
411 | cd->tx_error_check = DEFAULT_TX_ERROR_CHECK; | |
412 | } | |
413 | ||
414 | #if defined(SH_ETH_RESET_DEFAULT) | |
415 | /* Chip Reset */ | |
416 | static void sh_eth_reset(struct net_device *ndev) | |
417 | { | |
c5ed5368 | 418 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, EDMR); |
380af9e3 | 419 | mdelay(3); |
c5ed5368 | 420 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, EDMR); |
380af9e3 YS |
421 | } |
422 | #endif | |
423 | ||
424 | #if defined(CONFIG_CPU_SH4) | |
425 | static void sh_eth_set_receive_align(struct sk_buff *skb) | |
426 | { | |
427 | int reserve; | |
428 | ||
429 | reserve = SH4_SKB_RX_ALIGN - ((u32)skb->data & (SH4_SKB_RX_ALIGN - 1)); | |
430 | if (reserve) | |
431 | skb_reserve(skb, reserve); | |
432 | } | |
433 | #else | |
434 | static void sh_eth_set_receive_align(struct sk_buff *skb) | |
435 | { | |
436 | skb_reserve(skb, SH2_SH3_SKB_RX_ALIGN); | |
437 | } | |
438 | #endif | |
439 | ||
440 | ||
71557a37 YS |
441 | /* CPU <-> EDMAC endian convert */ |
442 | static inline __u32 cpu_to_edmac(struct sh_eth_private *mdp, u32 x) | |
443 | { | |
444 | switch (mdp->edmac_endian) { | |
445 | case EDMAC_LITTLE_ENDIAN: | |
446 | return cpu_to_le32(x); | |
447 | case EDMAC_BIG_ENDIAN: | |
448 | return cpu_to_be32(x); | |
449 | } | |
450 | return x; | |
451 | } | |
452 | ||
453 | static inline __u32 edmac_to_cpu(struct sh_eth_private *mdp, u32 x) | |
454 | { | |
455 | switch (mdp->edmac_endian) { | |
456 | case EDMAC_LITTLE_ENDIAN: | |
457 | return le32_to_cpu(x); | |
458 | case EDMAC_BIG_ENDIAN: | |
459 | return be32_to_cpu(x); | |
460 | } | |
461 | return x; | |
462 | } | |
463 | ||
86a74ff2 NI |
464 | /* |
465 | * Program the hardware MAC address from dev->dev_addr. | |
466 | */ | |
467 | static void update_mac_address(struct net_device *ndev) | |
468 | { | |
4a55530f YS |
469 | sh_eth_write(ndev, |
470 | (ndev->dev_addr[0] << 24) | (ndev->dev_addr[1] << 16) | | |
471 | (ndev->dev_addr[2] << 8) | (ndev->dev_addr[3]), MAHR); | |
472 | sh_eth_write(ndev, | |
473 | (ndev->dev_addr[4] << 8) | (ndev->dev_addr[5]), MALR); | |
86a74ff2 NI |
474 | } |
475 | ||
476 | /* | |
477 | * Get MAC address from SuperH MAC address register | |
478 | * | |
479 | * SuperH's Ethernet device doesn't have 'ROM' to MAC address. | |
480 | * This driver get MAC address that use by bootloader(U-boot or sh-ipl+g). | |
481 | * When you want use this device, you must set MAC address in bootloader. | |
482 | * | |
483 | */ | |
748031f9 | 484 | static void read_mac_address(struct net_device *ndev, unsigned char *mac) |
86a74ff2 | 485 | { |
748031f9 MD |
486 | if (mac[0] || mac[1] || mac[2] || mac[3] || mac[4] || mac[5]) { |
487 | memcpy(ndev->dev_addr, mac, 6); | |
488 | } else { | |
4a55530f YS |
489 | ndev->dev_addr[0] = (sh_eth_read(ndev, MAHR) >> 24); |
490 | ndev->dev_addr[1] = (sh_eth_read(ndev, MAHR) >> 16) & 0xFF; | |
491 | ndev->dev_addr[2] = (sh_eth_read(ndev, MAHR) >> 8) & 0xFF; | |
492 | ndev->dev_addr[3] = (sh_eth_read(ndev, MAHR) & 0xFF); | |
493 | ndev->dev_addr[4] = (sh_eth_read(ndev, MALR) >> 8) & 0xFF; | |
494 | ndev->dev_addr[5] = (sh_eth_read(ndev, MALR) & 0xFF); | |
748031f9 | 495 | } |
86a74ff2 NI |
496 | } |
497 | ||
c5ed5368 YS |
498 | static int sh_eth_is_gether(struct sh_eth_private *mdp) |
499 | { | |
500 | if (mdp->reg_offset == sh_eth_offset_gigabit) | |
501 | return 1; | |
502 | else | |
503 | return 0; | |
504 | } | |
505 | ||
506 | static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp) | |
507 | { | |
508 | if (sh_eth_is_gether(mdp)) | |
509 | return EDTRR_TRNS_GETHER; | |
510 | else | |
511 | return EDTRR_TRNS_ETHER; | |
512 | } | |
513 | ||
86a74ff2 NI |
514 | struct bb_info { |
515 | struct mdiobb_ctrl ctrl; | |
516 | u32 addr; | |
517 | u32 mmd_msk;/* MMD */ | |
518 | u32 mdo_msk; | |
519 | u32 mdi_msk; | |
520 | u32 mdc_msk; | |
521 | }; | |
522 | ||
523 | /* PHY bit set */ | |
524 | static void bb_set(u32 addr, u32 msk) | |
525 | { | |
900fcf09 | 526 | writel(readl(addr) | msk, addr); |
86a74ff2 NI |
527 | } |
528 | ||
529 | /* PHY bit clear */ | |
530 | static void bb_clr(u32 addr, u32 msk) | |
531 | { | |
900fcf09 | 532 | writel((readl(addr) & ~msk), addr); |
86a74ff2 NI |
533 | } |
534 | ||
535 | /* PHY bit read */ | |
536 | static int bb_read(u32 addr, u32 msk) | |
537 | { | |
900fcf09 | 538 | return (readl(addr) & msk) != 0; |
86a74ff2 NI |
539 | } |
540 | ||
541 | /* Data I/O pin control */ | |
542 | static void sh_mmd_ctrl(struct mdiobb_ctrl *ctrl, int bit) | |
543 | { | |
544 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
545 | if (bit) | |
546 | bb_set(bitbang->addr, bitbang->mmd_msk); | |
547 | else | |
548 | bb_clr(bitbang->addr, bitbang->mmd_msk); | |
549 | } | |
550 | ||
551 | /* Set bit data*/ | |
552 | static void sh_set_mdio(struct mdiobb_ctrl *ctrl, int bit) | |
553 | { | |
554 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
555 | ||
556 | if (bit) | |
557 | bb_set(bitbang->addr, bitbang->mdo_msk); | |
558 | else | |
559 | bb_clr(bitbang->addr, bitbang->mdo_msk); | |
560 | } | |
561 | ||
562 | /* Get bit data*/ | |
563 | static int sh_get_mdio(struct mdiobb_ctrl *ctrl) | |
564 | { | |
565 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
566 | return bb_read(bitbang->addr, bitbang->mdi_msk); | |
567 | } | |
568 | ||
569 | /* MDC pin control */ | |
570 | static void sh_mdc_ctrl(struct mdiobb_ctrl *ctrl, int bit) | |
571 | { | |
572 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
573 | ||
574 | if (bit) | |
575 | bb_set(bitbang->addr, bitbang->mdc_msk); | |
576 | else | |
577 | bb_clr(bitbang->addr, bitbang->mdc_msk); | |
578 | } | |
579 | ||
580 | /* mdio bus control struct */ | |
581 | static struct mdiobb_ops bb_ops = { | |
582 | .owner = THIS_MODULE, | |
583 | .set_mdc = sh_mdc_ctrl, | |
584 | .set_mdio_dir = sh_mmd_ctrl, | |
585 | .set_mdio_data = sh_set_mdio, | |
586 | .get_mdio_data = sh_get_mdio, | |
587 | }; | |
588 | ||
86a74ff2 NI |
589 | /* free skb and descriptor buffer */ |
590 | static void sh_eth_ring_free(struct net_device *ndev) | |
591 | { | |
592 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
593 | int i; | |
594 | ||
595 | /* Free Rx skb ringbuffer */ | |
596 | if (mdp->rx_skbuff) { | |
597 | for (i = 0; i < RX_RING_SIZE; i++) { | |
598 | if (mdp->rx_skbuff[i]) | |
599 | dev_kfree_skb(mdp->rx_skbuff[i]); | |
600 | } | |
601 | } | |
602 | kfree(mdp->rx_skbuff); | |
603 | ||
604 | /* Free Tx skb ringbuffer */ | |
605 | if (mdp->tx_skbuff) { | |
606 | for (i = 0; i < TX_RING_SIZE; i++) { | |
607 | if (mdp->tx_skbuff[i]) | |
608 | dev_kfree_skb(mdp->tx_skbuff[i]); | |
609 | } | |
610 | } | |
611 | kfree(mdp->tx_skbuff); | |
612 | } | |
613 | ||
614 | /* format skb and descriptor buffer */ | |
615 | static void sh_eth_ring_format(struct net_device *ndev) | |
616 | { | |
617 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
618 | int i; | |
619 | struct sk_buff *skb; | |
620 | struct sh_eth_rxdesc *rxdesc = NULL; | |
621 | struct sh_eth_txdesc *txdesc = NULL; | |
622 | int rx_ringsize = sizeof(*rxdesc) * RX_RING_SIZE; | |
623 | int tx_ringsize = sizeof(*txdesc) * TX_RING_SIZE; | |
624 | ||
625 | mdp->cur_rx = mdp->cur_tx = 0; | |
626 | mdp->dirty_rx = mdp->dirty_tx = 0; | |
627 | ||
628 | memset(mdp->rx_ring, 0, rx_ringsize); | |
629 | ||
630 | /* build Rx ring buffer */ | |
631 | for (i = 0; i < RX_RING_SIZE; i++) { | |
632 | /* skb */ | |
633 | mdp->rx_skbuff[i] = NULL; | |
634 | skb = dev_alloc_skb(mdp->rx_buf_sz); | |
635 | mdp->rx_skbuff[i] = skb; | |
636 | if (skb == NULL) | |
637 | break; | |
e88aae7b YS |
638 | dma_map_single(&ndev->dev, skb->tail, mdp->rx_buf_sz, |
639 | DMA_FROM_DEVICE); | |
b0ca2a21 | 640 | skb->dev = ndev; /* Mark as being used by this device. */ |
380af9e3 YS |
641 | sh_eth_set_receive_align(skb); |
642 | ||
86a74ff2 NI |
643 | /* RX descriptor */ |
644 | rxdesc = &mdp->rx_ring[i]; | |
0029d64a | 645 | rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4)); |
71557a37 | 646 | rxdesc->status = cpu_to_edmac(mdp, RD_RACT | RD_RFP); |
86a74ff2 NI |
647 | |
648 | /* The size of the buffer is 16 byte boundary. */ | |
0029d64a | 649 | rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16); |
b0ca2a21 NI |
650 | /* Rx descriptor address set */ |
651 | if (i == 0) { | |
4a55530f | 652 | sh_eth_write(ndev, mdp->rx_desc_dma, RDLAR); |
c5ed5368 YS |
653 | if (sh_eth_is_gether(mdp)) |
654 | sh_eth_write(ndev, mdp->rx_desc_dma, RDFAR); | |
b0ca2a21 | 655 | } |
86a74ff2 NI |
656 | } |
657 | ||
658 | mdp->dirty_rx = (u32) (i - RX_RING_SIZE); | |
659 | ||
660 | /* Mark the last entry as wrapping the ring. */ | |
71557a37 | 661 | rxdesc->status |= cpu_to_edmac(mdp, RD_RDEL); |
86a74ff2 NI |
662 | |
663 | memset(mdp->tx_ring, 0, tx_ringsize); | |
664 | ||
665 | /* build Tx ring buffer */ | |
666 | for (i = 0; i < TX_RING_SIZE; i++) { | |
667 | mdp->tx_skbuff[i] = NULL; | |
668 | txdesc = &mdp->tx_ring[i]; | |
71557a37 | 669 | txdesc->status = cpu_to_edmac(mdp, TD_TFP); |
86a74ff2 | 670 | txdesc->buffer_length = 0; |
b0ca2a21 | 671 | if (i == 0) { |
71557a37 | 672 | /* Tx descriptor address set */ |
4a55530f | 673 | sh_eth_write(ndev, mdp->tx_desc_dma, TDLAR); |
c5ed5368 YS |
674 | if (sh_eth_is_gether(mdp)) |
675 | sh_eth_write(ndev, mdp->tx_desc_dma, TDFAR); | |
b0ca2a21 | 676 | } |
86a74ff2 NI |
677 | } |
678 | ||
71557a37 | 679 | txdesc->status |= cpu_to_edmac(mdp, TD_TDLE); |
86a74ff2 NI |
680 | } |
681 | ||
682 | /* Get skb and descriptor buffer */ | |
683 | static int sh_eth_ring_init(struct net_device *ndev) | |
684 | { | |
685 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
686 | int rx_ringsize, tx_ringsize, ret = 0; | |
687 | ||
688 | /* | |
689 | * +26 gets the maximum ethernet encapsulation, +7 & ~7 because the | |
690 | * card needs room to do 8 byte alignment, +2 so we can reserve | |
691 | * the first 2 bytes, and +16 gets room for the status word from the | |
692 | * card. | |
693 | */ | |
694 | mdp->rx_buf_sz = (ndev->mtu <= 1492 ? PKT_BUF_SZ : | |
695 | (((ndev->mtu + 26 + 7) & ~7) + 2 + 16)); | |
503914cf MD |
696 | if (mdp->cd->rpadir) |
697 | mdp->rx_buf_sz += NET_IP_ALIGN; | |
86a74ff2 NI |
698 | |
699 | /* Allocate RX and TX skb rings */ | |
700 | mdp->rx_skbuff = kmalloc(sizeof(*mdp->rx_skbuff) * RX_RING_SIZE, | |
701 | GFP_KERNEL); | |
702 | if (!mdp->rx_skbuff) { | |
380af9e3 | 703 | dev_err(&ndev->dev, "Cannot allocate Rx skb\n"); |
86a74ff2 NI |
704 | ret = -ENOMEM; |
705 | return ret; | |
706 | } | |
707 | ||
708 | mdp->tx_skbuff = kmalloc(sizeof(*mdp->tx_skbuff) * TX_RING_SIZE, | |
709 | GFP_KERNEL); | |
710 | if (!mdp->tx_skbuff) { | |
380af9e3 | 711 | dev_err(&ndev->dev, "Cannot allocate Tx skb\n"); |
86a74ff2 NI |
712 | ret = -ENOMEM; |
713 | goto skb_ring_free; | |
714 | } | |
715 | ||
716 | /* Allocate all Rx descriptors. */ | |
717 | rx_ringsize = sizeof(struct sh_eth_rxdesc) * RX_RING_SIZE; | |
718 | mdp->rx_ring = dma_alloc_coherent(NULL, rx_ringsize, &mdp->rx_desc_dma, | |
719 | GFP_KERNEL); | |
720 | ||
721 | if (!mdp->rx_ring) { | |
380af9e3 YS |
722 | dev_err(&ndev->dev, "Cannot allocate Rx Ring (size %d bytes)\n", |
723 | rx_ringsize); | |
86a74ff2 NI |
724 | ret = -ENOMEM; |
725 | goto desc_ring_free; | |
726 | } | |
727 | ||
728 | mdp->dirty_rx = 0; | |
729 | ||
730 | /* Allocate all Tx descriptors. */ | |
731 | tx_ringsize = sizeof(struct sh_eth_txdesc) * TX_RING_SIZE; | |
732 | mdp->tx_ring = dma_alloc_coherent(NULL, tx_ringsize, &mdp->tx_desc_dma, | |
733 | GFP_KERNEL); | |
734 | if (!mdp->tx_ring) { | |
380af9e3 YS |
735 | dev_err(&ndev->dev, "Cannot allocate Tx Ring (size %d bytes)\n", |
736 | tx_ringsize); | |
86a74ff2 NI |
737 | ret = -ENOMEM; |
738 | goto desc_ring_free; | |
739 | } | |
740 | return ret; | |
741 | ||
742 | desc_ring_free: | |
743 | /* free DMA buffer */ | |
744 | dma_free_coherent(NULL, rx_ringsize, mdp->rx_ring, mdp->rx_desc_dma); | |
745 | ||
746 | skb_ring_free: | |
747 | /* Free Rx and Tx skb ring buffer */ | |
748 | sh_eth_ring_free(ndev); | |
749 | ||
750 | return ret; | |
751 | } | |
752 | ||
753 | static int sh_eth_dev_init(struct net_device *ndev) | |
754 | { | |
755 | int ret = 0; | |
756 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
757 | u_int32_t rx_int_var, tx_int_var; |
758 | u32 val; | |
759 | ||
760 | /* Soft Reset */ | |
761 | sh_eth_reset(ndev); | |
762 | ||
b0ca2a21 NI |
763 | /* Descriptor format */ |
764 | sh_eth_ring_format(ndev); | |
380af9e3 | 765 | if (mdp->cd->rpadir) |
4a55530f | 766 | sh_eth_write(ndev, mdp->cd->rpadir_value, RPADIR); |
86a74ff2 NI |
767 | |
768 | /* all sh_eth int mask */ | |
4a55530f | 769 | sh_eth_write(ndev, 0, EESIPR); |
86a74ff2 | 770 | |
380af9e3 YS |
771 | #if defined(__LITTLE_ENDIAN__) |
772 | if (mdp->cd->hw_swap) | |
4a55530f | 773 | sh_eth_write(ndev, EDMR_EL, EDMR); |
380af9e3 | 774 | else |
b0ca2a21 | 775 | #endif |
4a55530f | 776 | sh_eth_write(ndev, 0, EDMR); |
86a74ff2 | 777 | |
b0ca2a21 | 778 | /* FIFO size set */ |
4a55530f YS |
779 | sh_eth_write(ndev, mdp->cd->fdr_value, FDR); |
780 | sh_eth_write(ndev, 0, TFTR); | |
86a74ff2 | 781 | |
b0ca2a21 | 782 | /* Frame recv control */ |
4a55530f | 783 | sh_eth_write(ndev, mdp->cd->rmcr_value, RMCR); |
86a74ff2 NI |
784 | |
785 | rx_int_var = mdp->rx_int_var = DESC_I_RINT8 | DESC_I_RINT5; | |
786 | tx_int_var = mdp->tx_int_var = DESC_I_TINT2; | |
4a55530f | 787 | sh_eth_write(ndev, rx_int_var | tx_int_var, TRSCER); |
86a74ff2 | 788 | |
380af9e3 | 789 | if (mdp->cd->bculr) |
4a55530f | 790 | sh_eth_write(ndev, 0x800, BCULR); /* Burst sycle set */ |
b0ca2a21 | 791 | |
4a55530f | 792 | sh_eth_write(ndev, mdp->cd->fcftr_value, FCFTR); |
86a74ff2 | 793 | |
380af9e3 | 794 | if (!mdp->cd->no_trimd) |
4a55530f | 795 | sh_eth_write(ndev, 0, TRIMD); |
86a74ff2 | 796 | |
b0ca2a21 | 797 | /* Recv frame limit set register */ |
4a55530f | 798 | sh_eth_write(ndev, RFLR_VALUE, RFLR); |
86a74ff2 | 799 | |
4a55530f YS |
800 | sh_eth_write(ndev, sh_eth_read(ndev, EESR), EESR); |
801 | sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); | |
86a74ff2 NI |
802 | |
803 | /* PAUSE Prohibition */ | |
4a55530f | 804 | val = (sh_eth_read(ndev, ECMR) & ECMR_DM) | |
86a74ff2 NI |
805 | ECMR_ZPF | (mdp->duplex ? ECMR_DM : 0) | ECMR_TE | ECMR_RE; |
806 | ||
4a55530f | 807 | sh_eth_write(ndev, val, ECMR); |
b0ca2a21 | 808 | |
380af9e3 YS |
809 | if (mdp->cd->set_rate) |
810 | mdp->cd->set_rate(ndev); | |
811 | ||
b0ca2a21 | 812 | /* E-MAC Status Register clear */ |
4a55530f | 813 | sh_eth_write(ndev, mdp->cd->ecsr_value, ECSR); |
b0ca2a21 NI |
814 | |
815 | /* E-MAC Interrupt Enable register */ | |
4a55530f | 816 | sh_eth_write(ndev, mdp->cd->ecsipr_value, ECSIPR); |
86a74ff2 NI |
817 | |
818 | /* Set MAC address */ | |
819 | update_mac_address(ndev); | |
820 | ||
821 | /* mask reset */ | |
380af9e3 | 822 | if (mdp->cd->apr) |
4a55530f | 823 | sh_eth_write(ndev, APR_AP, APR); |
380af9e3 | 824 | if (mdp->cd->mpr) |
4a55530f | 825 | sh_eth_write(ndev, MPR_MP, MPR); |
380af9e3 | 826 | if (mdp->cd->tpauser) |
4a55530f | 827 | sh_eth_write(ndev, TPAUSER_UNLIMITED, TPAUSER); |
b0ca2a21 | 828 | |
86a74ff2 | 829 | /* Setting the Rx mode will start the Rx process. */ |
4a55530f | 830 | sh_eth_write(ndev, EDRRR_R, EDRRR); |
86a74ff2 NI |
831 | |
832 | netif_start_queue(ndev); | |
833 | ||
834 | return ret; | |
835 | } | |
836 | ||
837 | /* free Tx skb function */ | |
838 | static int sh_eth_txfree(struct net_device *ndev) | |
839 | { | |
840 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
841 | struct sh_eth_txdesc *txdesc; | |
842 | int freeNum = 0; | |
843 | int entry = 0; | |
844 | ||
845 | for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) { | |
846 | entry = mdp->dirty_tx % TX_RING_SIZE; | |
847 | txdesc = &mdp->tx_ring[entry]; | |
71557a37 | 848 | if (txdesc->status & cpu_to_edmac(mdp, TD_TACT)) |
86a74ff2 NI |
849 | break; |
850 | /* Free the original skb. */ | |
851 | if (mdp->tx_skbuff[entry]) { | |
852 | dev_kfree_skb_irq(mdp->tx_skbuff[entry]); | |
853 | mdp->tx_skbuff[entry] = NULL; | |
854 | freeNum++; | |
855 | } | |
71557a37 | 856 | txdesc->status = cpu_to_edmac(mdp, TD_TFP); |
86a74ff2 | 857 | if (entry >= TX_RING_SIZE - 1) |
71557a37 | 858 | txdesc->status |= cpu_to_edmac(mdp, TD_TDLE); |
86a74ff2 NI |
859 | |
860 | mdp->stats.tx_packets++; | |
861 | mdp->stats.tx_bytes += txdesc->buffer_length; | |
862 | } | |
863 | return freeNum; | |
864 | } | |
865 | ||
866 | /* Packet receive function */ | |
867 | static int sh_eth_rx(struct net_device *ndev) | |
868 | { | |
869 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
870 | struct sh_eth_rxdesc *rxdesc; | |
871 | ||
872 | int entry = mdp->cur_rx % RX_RING_SIZE; | |
873 | int boguscnt = (mdp->dirty_rx + RX_RING_SIZE) - mdp->cur_rx; | |
874 | struct sk_buff *skb; | |
875 | u16 pkt_len = 0; | |
380af9e3 | 876 | u32 desc_status; |
86a74ff2 NI |
877 | |
878 | rxdesc = &mdp->rx_ring[entry]; | |
71557a37 YS |
879 | while (!(rxdesc->status & cpu_to_edmac(mdp, RD_RACT))) { |
880 | desc_status = edmac_to_cpu(mdp, rxdesc->status); | |
86a74ff2 NI |
881 | pkt_len = rxdesc->frame_length; |
882 | ||
883 | if (--boguscnt < 0) | |
884 | break; | |
885 | ||
886 | if (!(desc_status & RDFEND)) | |
887 | mdp->stats.rx_length_errors++; | |
888 | ||
889 | if (desc_status & (RD_RFS1 | RD_RFS2 | RD_RFS3 | RD_RFS4 | | |
890 | RD_RFS5 | RD_RFS6 | RD_RFS10)) { | |
891 | mdp->stats.rx_errors++; | |
892 | if (desc_status & RD_RFS1) | |
893 | mdp->stats.rx_crc_errors++; | |
894 | if (desc_status & RD_RFS2) | |
895 | mdp->stats.rx_frame_errors++; | |
896 | if (desc_status & RD_RFS3) | |
897 | mdp->stats.rx_length_errors++; | |
898 | if (desc_status & RD_RFS4) | |
899 | mdp->stats.rx_length_errors++; | |
900 | if (desc_status & RD_RFS6) | |
901 | mdp->stats.rx_missed_errors++; | |
902 | if (desc_status & RD_RFS10) | |
903 | mdp->stats.rx_over_errors++; | |
904 | } else { | |
380af9e3 YS |
905 | if (!mdp->cd->hw_swap) |
906 | sh_eth_soft_swap( | |
907 | phys_to_virt(ALIGN(rxdesc->addr, 4)), | |
908 | pkt_len + 2); | |
86a74ff2 NI |
909 | skb = mdp->rx_skbuff[entry]; |
910 | mdp->rx_skbuff[entry] = NULL; | |
503914cf MD |
911 | if (mdp->cd->rpadir) |
912 | skb_reserve(skb, NET_IP_ALIGN); | |
86a74ff2 NI |
913 | skb_put(skb, pkt_len); |
914 | skb->protocol = eth_type_trans(skb, ndev); | |
915 | netif_rx(skb); | |
86a74ff2 NI |
916 | mdp->stats.rx_packets++; |
917 | mdp->stats.rx_bytes += pkt_len; | |
918 | } | |
71557a37 | 919 | rxdesc->status |= cpu_to_edmac(mdp, RD_RACT); |
86a74ff2 | 920 | entry = (++mdp->cur_rx) % RX_RING_SIZE; |
862df497 | 921 | rxdesc = &mdp->rx_ring[entry]; |
86a74ff2 NI |
922 | } |
923 | ||
924 | /* Refill the Rx ring buffers. */ | |
925 | for (; mdp->cur_rx - mdp->dirty_rx > 0; mdp->dirty_rx++) { | |
926 | entry = mdp->dirty_rx % RX_RING_SIZE; | |
927 | rxdesc = &mdp->rx_ring[entry]; | |
b0ca2a21 | 928 | /* The size of the buffer is 16 byte boundary. */ |
0029d64a | 929 | rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16); |
b0ca2a21 | 930 | |
86a74ff2 NI |
931 | if (mdp->rx_skbuff[entry] == NULL) { |
932 | skb = dev_alloc_skb(mdp->rx_buf_sz); | |
933 | mdp->rx_skbuff[entry] = skb; | |
934 | if (skb == NULL) | |
935 | break; /* Better luck next round. */ | |
e88aae7b YS |
936 | dma_map_single(&ndev->dev, skb->tail, mdp->rx_buf_sz, |
937 | DMA_FROM_DEVICE); | |
86a74ff2 | 938 | skb->dev = ndev; |
380af9e3 YS |
939 | sh_eth_set_receive_align(skb); |
940 | ||
bc8acf2c | 941 | skb_checksum_none_assert(skb); |
0029d64a | 942 | rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4)); |
86a74ff2 | 943 | } |
86a74ff2 NI |
944 | if (entry >= RX_RING_SIZE - 1) |
945 | rxdesc->status |= | |
71557a37 | 946 | cpu_to_edmac(mdp, RD_RACT | RD_RFP | RD_RDEL); |
86a74ff2 NI |
947 | else |
948 | rxdesc->status |= | |
71557a37 | 949 | cpu_to_edmac(mdp, RD_RACT | RD_RFP); |
86a74ff2 NI |
950 | } |
951 | ||
952 | /* Restart Rx engine if stopped. */ | |
953 | /* If we don't need to check status, don't. -KDU */ | |
4a55530f YS |
954 | if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) |
955 | sh_eth_write(ndev, EDRRR_R, EDRRR); | |
86a74ff2 NI |
956 | |
957 | return 0; | |
958 | } | |
959 | ||
4a55530f | 960 | static void sh_eth_rcv_snd_disable(struct net_device *ndev) |
dc19e4e5 NI |
961 | { |
962 | /* disable tx and rx */ | |
4a55530f YS |
963 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & |
964 | ~(ECMR_RE | ECMR_TE), ECMR); | |
dc19e4e5 NI |
965 | } |
966 | ||
4a55530f | 967 | static void sh_eth_rcv_snd_enable(struct net_device *ndev) |
dc19e4e5 NI |
968 | { |
969 | /* enable tx and rx */ | |
4a55530f YS |
970 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | |
971 | (ECMR_RE | ECMR_TE), ECMR); | |
dc19e4e5 NI |
972 | } |
973 | ||
86a74ff2 NI |
974 | /* error control function */ |
975 | static void sh_eth_error(struct net_device *ndev, int intr_status) | |
976 | { | |
977 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 | 978 | u32 felic_stat; |
380af9e3 YS |
979 | u32 link_stat; |
980 | u32 mask; | |
86a74ff2 NI |
981 | |
982 | if (intr_status & EESR_ECI) { | |
4a55530f YS |
983 | felic_stat = sh_eth_read(ndev, ECSR); |
984 | sh_eth_write(ndev, felic_stat, ECSR); /* clear int */ | |
86a74ff2 NI |
985 | if (felic_stat & ECSR_ICD) |
986 | mdp->stats.tx_carrier_errors++; | |
987 | if (felic_stat & ECSR_LCHNG) { | |
988 | /* Link Changed */ | |
4923576b | 989 | if (mdp->cd->no_psr || mdp->no_ether_link) { |
380af9e3 YS |
990 | if (mdp->link == PHY_DOWN) |
991 | link_stat = 0; | |
992 | else | |
993 | link_stat = PHY_ST_LINK; | |
994 | } else { | |
4a55530f | 995 | link_stat = (sh_eth_read(ndev, PSR)); |
4923576b YS |
996 | if (mdp->ether_link_active_low) |
997 | link_stat = ~link_stat; | |
380af9e3 | 998 | } |
dc19e4e5 | 999 | if (!(link_stat & PHY_ST_LINK)) |
4a55530f | 1000 | sh_eth_rcv_snd_disable(ndev); |
dc19e4e5 | 1001 | else { |
86a74ff2 | 1002 | /* Link Up */ |
4a55530f YS |
1003 | sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) & |
1004 | ~DMAC_M_ECI, EESIPR); | |
86a74ff2 | 1005 | /*clear int */ |
4a55530f YS |
1006 | sh_eth_write(ndev, sh_eth_read(ndev, ECSR), |
1007 | ECSR); | |
1008 | sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) | | |
1009 | DMAC_M_ECI, EESIPR); | |
86a74ff2 | 1010 | /* enable tx and rx */ |
4a55530f | 1011 | sh_eth_rcv_snd_enable(ndev); |
86a74ff2 NI |
1012 | } |
1013 | } | |
1014 | } | |
1015 | ||
1016 | if (intr_status & EESR_TWB) { | |
1017 | /* Write buck end. unused write back interrupt */ | |
1018 | if (intr_status & EESR_TABT) /* Transmit Abort int */ | |
1019 | mdp->stats.tx_aborted_errors++; | |
dc19e4e5 NI |
1020 | if (netif_msg_tx_err(mdp)) |
1021 | dev_err(&ndev->dev, "Transmit Abort\n"); | |
86a74ff2 NI |
1022 | } |
1023 | ||
1024 | if (intr_status & EESR_RABT) { | |
1025 | /* Receive Abort int */ | |
1026 | if (intr_status & EESR_RFRMER) { | |
1027 | /* Receive Frame Overflow int */ | |
1028 | mdp->stats.rx_frame_errors++; | |
dc19e4e5 NI |
1029 | if (netif_msg_rx_err(mdp)) |
1030 | dev_err(&ndev->dev, "Receive Abort\n"); | |
86a74ff2 NI |
1031 | } |
1032 | } | |
380af9e3 | 1033 | |
dc19e4e5 NI |
1034 | if (intr_status & EESR_TDE) { |
1035 | /* Transmit Descriptor Empty int */ | |
1036 | mdp->stats.tx_fifo_errors++; | |
1037 | if (netif_msg_tx_err(mdp)) | |
1038 | dev_err(&ndev->dev, "Transmit Descriptor Empty\n"); | |
1039 | } | |
1040 | ||
1041 | if (intr_status & EESR_TFE) { | |
1042 | /* FIFO under flow */ | |
1043 | mdp->stats.tx_fifo_errors++; | |
1044 | if (netif_msg_tx_err(mdp)) | |
1045 | dev_err(&ndev->dev, "Transmit FIFO Under flow\n"); | |
86a74ff2 NI |
1046 | } |
1047 | ||
1048 | if (intr_status & EESR_RDE) { | |
1049 | /* Receive Descriptor Empty int */ | |
1050 | mdp->stats.rx_over_errors++; | |
1051 | ||
4a55530f YS |
1052 | if (sh_eth_read(ndev, EDRRR) ^ EDRRR_R) |
1053 | sh_eth_write(ndev, EDRRR_R, EDRRR); | |
dc19e4e5 NI |
1054 | if (netif_msg_rx_err(mdp)) |
1055 | dev_err(&ndev->dev, "Receive Descriptor Empty\n"); | |
86a74ff2 | 1056 | } |
dc19e4e5 | 1057 | |
86a74ff2 NI |
1058 | if (intr_status & EESR_RFE) { |
1059 | /* Receive FIFO Overflow int */ | |
1060 | mdp->stats.rx_fifo_errors++; | |
dc19e4e5 NI |
1061 | if (netif_msg_rx_err(mdp)) |
1062 | dev_err(&ndev->dev, "Receive FIFO Overflow\n"); | |
1063 | } | |
1064 | ||
1065 | if (!mdp->cd->no_ade && (intr_status & EESR_ADE)) { | |
1066 | /* Address Error */ | |
1067 | mdp->stats.tx_fifo_errors++; | |
1068 | if (netif_msg_tx_err(mdp)) | |
1069 | dev_err(&ndev->dev, "Address Error\n"); | |
86a74ff2 | 1070 | } |
380af9e3 YS |
1071 | |
1072 | mask = EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | EESR_TFE; | |
1073 | if (mdp->cd->no_ade) | |
1074 | mask &= ~EESR_ADE; | |
1075 | if (intr_status & mask) { | |
86a74ff2 | 1076 | /* Tx error */ |
4a55530f | 1077 | u32 edtrr = sh_eth_read(ndev, EDTRR); |
86a74ff2 | 1078 | /* dmesg */ |
380af9e3 YS |
1079 | dev_err(&ndev->dev, "TX error. status=%8.8x cur_tx=%8.8x ", |
1080 | intr_status, mdp->cur_tx); | |
1081 | dev_err(&ndev->dev, "dirty_tx=%8.8x state=%8.8x EDTRR=%8.8x.\n", | |
86a74ff2 NI |
1082 | mdp->dirty_tx, (u32) ndev->state, edtrr); |
1083 | /* dirty buffer free */ | |
1084 | sh_eth_txfree(ndev); | |
1085 | ||
1086 | /* SH7712 BUG */ | |
c5ed5368 | 1087 | if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) { |
86a74ff2 | 1088 | /* tx dma start */ |
c5ed5368 | 1089 | sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR); |
86a74ff2 NI |
1090 | } |
1091 | /* wakeup */ | |
1092 | netif_wake_queue(ndev); | |
1093 | } | |
1094 | } | |
1095 | ||
1096 | static irqreturn_t sh_eth_interrupt(int irq, void *netdev) | |
1097 | { | |
1098 | struct net_device *ndev = netdev; | |
1099 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
380af9e3 | 1100 | struct sh_eth_cpu_data *cd = mdp->cd; |
0e0fde3c | 1101 | irqreturn_t ret = IRQ_NONE; |
4a55530f | 1102 | u32 intr_status = 0; |
86a74ff2 | 1103 | |
86a74ff2 NI |
1104 | spin_lock(&mdp->lock); |
1105 | ||
b0ca2a21 | 1106 | /* Get interrpt stat */ |
4a55530f | 1107 | intr_status = sh_eth_read(ndev, EESR); |
86a74ff2 | 1108 | /* Clear interrupt */ |
0e0fde3c NI |
1109 | if (intr_status & (EESR_FRC | EESR_RMAF | EESR_RRF | |
1110 | EESR_RTLF | EESR_RTSF | EESR_PRE | EESR_CERF | | |
380af9e3 | 1111 | cd->tx_check | cd->eesr_err_check)) { |
4a55530f | 1112 | sh_eth_write(ndev, intr_status, EESR); |
0e0fde3c NI |
1113 | ret = IRQ_HANDLED; |
1114 | } else | |
1115 | goto other_irq; | |
86a74ff2 | 1116 | |
b0ca2a21 NI |
1117 | if (intr_status & (EESR_FRC | /* Frame recv*/ |
1118 | EESR_RMAF | /* Multi cast address recv*/ | |
1119 | EESR_RRF | /* Bit frame recv */ | |
1120 | EESR_RTLF | /* Long frame recv*/ | |
1121 | EESR_RTSF | /* short frame recv */ | |
1122 | EESR_PRE | /* PHY-LSI recv error */ | |
1123 | EESR_CERF)){ /* recv frame CRC error */ | |
86a74ff2 | 1124 | sh_eth_rx(ndev); |
b0ca2a21 | 1125 | } |
86a74ff2 | 1126 | |
b0ca2a21 | 1127 | /* Tx Check */ |
380af9e3 | 1128 | if (intr_status & cd->tx_check) { |
86a74ff2 NI |
1129 | sh_eth_txfree(ndev); |
1130 | netif_wake_queue(ndev); | |
1131 | } | |
1132 | ||
380af9e3 | 1133 | if (intr_status & cd->eesr_err_check) |
86a74ff2 NI |
1134 | sh_eth_error(ndev, intr_status); |
1135 | ||
0e0fde3c | 1136 | other_irq: |
86a74ff2 NI |
1137 | spin_unlock(&mdp->lock); |
1138 | ||
0e0fde3c | 1139 | return ret; |
86a74ff2 NI |
1140 | } |
1141 | ||
1142 | static void sh_eth_timer(unsigned long data) | |
1143 | { | |
1144 | struct net_device *ndev = (struct net_device *)data; | |
1145 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1146 | ||
1147 | mod_timer(&mdp->timer, jiffies + (10 * HZ)); | |
1148 | } | |
1149 | ||
1150 | /* PHY state control function */ | |
1151 | static void sh_eth_adjust_link(struct net_device *ndev) | |
1152 | { | |
1153 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1154 | struct phy_device *phydev = mdp->phydev; | |
86a74ff2 NI |
1155 | int new_state = 0; |
1156 | ||
1157 | if (phydev->link != PHY_DOWN) { | |
1158 | if (phydev->duplex != mdp->duplex) { | |
1159 | new_state = 1; | |
1160 | mdp->duplex = phydev->duplex; | |
380af9e3 YS |
1161 | if (mdp->cd->set_duplex) |
1162 | mdp->cd->set_duplex(ndev); | |
86a74ff2 NI |
1163 | } |
1164 | ||
1165 | if (phydev->speed != mdp->speed) { | |
1166 | new_state = 1; | |
1167 | mdp->speed = phydev->speed; | |
380af9e3 YS |
1168 | if (mdp->cd->set_rate) |
1169 | mdp->cd->set_rate(ndev); | |
86a74ff2 NI |
1170 | } |
1171 | if (mdp->link == PHY_DOWN) { | |
4a55530f YS |
1172 | sh_eth_write(ndev, (sh_eth_read(ndev, ECMR) & ~ECMR_TXF) |
1173 | | ECMR_DM, ECMR); | |
86a74ff2 NI |
1174 | new_state = 1; |
1175 | mdp->link = phydev->link; | |
86a74ff2 NI |
1176 | } |
1177 | } else if (mdp->link) { | |
1178 | new_state = 1; | |
1179 | mdp->link = PHY_DOWN; | |
1180 | mdp->speed = 0; | |
1181 | mdp->duplex = -1; | |
86a74ff2 NI |
1182 | } |
1183 | ||
dc19e4e5 | 1184 | if (new_state && netif_msg_link(mdp)) |
86a74ff2 NI |
1185 | phy_print_status(phydev); |
1186 | } | |
1187 | ||
1188 | /* PHY init function */ | |
1189 | static int sh_eth_phy_init(struct net_device *ndev) | |
1190 | { | |
1191 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
0a372eb9 | 1192 | char phy_id[MII_BUS_ID_SIZE + 3]; |
86a74ff2 NI |
1193 | struct phy_device *phydev = NULL; |
1194 | ||
fb28ad35 | 1195 | snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, |
86a74ff2 NI |
1196 | mdp->mii_bus->id , mdp->phy_id); |
1197 | ||
1198 | mdp->link = PHY_DOWN; | |
1199 | mdp->speed = 0; | |
1200 | mdp->duplex = -1; | |
1201 | ||
1202 | /* Try connect to PHY */ | |
c061b18d | 1203 | phydev = phy_connect(ndev, phy_id, sh_eth_adjust_link, |
e47c9052 | 1204 | 0, mdp->phy_interface); |
86a74ff2 NI |
1205 | if (IS_ERR(phydev)) { |
1206 | dev_err(&ndev->dev, "phy_connect failed\n"); | |
1207 | return PTR_ERR(phydev); | |
1208 | } | |
380af9e3 | 1209 | |
86a74ff2 | 1210 | dev_info(&ndev->dev, "attached phy %i to driver %s\n", |
380af9e3 | 1211 | phydev->addr, phydev->drv->name); |
86a74ff2 NI |
1212 | |
1213 | mdp->phydev = phydev; | |
1214 | ||
1215 | return 0; | |
1216 | } | |
1217 | ||
1218 | /* PHY control start function */ | |
1219 | static int sh_eth_phy_start(struct net_device *ndev) | |
1220 | { | |
1221 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1222 | int ret; | |
1223 | ||
1224 | ret = sh_eth_phy_init(ndev); | |
1225 | if (ret) | |
1226 | return ret; | |
1227 | ||
1228 | /* reset phy - this also wakes it from PDOWN */ | |
1229 | phy_write(mdp->phydev, MII_BMCR, BMCR_RESET); | |
1230 | phy_start(mdp->phydev); | |
1231 | ||
1232 | return 0; | |
1233 | } | |
1234 | ||
dc19e4e5 NI |
1235 | static int sh_eth_get_settings(struct net_device *ndev, |
1236 | struct ethtool_cmd *ecmd) | |
1237 | { | |
1238 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1239 | unsigned long flags; | |
1240 | int ret; | |
1241 | ||
1242 | spin_lock_irqsave(&mdp->lock, flags); | |
1243 | ret = phy_ethtool_gset(mdp->phydev, ecmd); | |
1244 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1245 | ||
1246 | return ret; | |
1247 | } | |
1248 | ||
1249 | static int sh_eth_set_settings(struct net_device *ndev, | |
1250 | struct ethtool_cmd *ecmd) | |
1251 | { | |
1252 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1253 | unsigned long flags; | |
1254 | int ret; | |
dc19e4e5 NI |
1255 | |
1256 | spin_lock_irqsave(&mdp->lock, flags); | |
1257 | ||
1258 | /* disable tx and rx */ | |
4a55530f | 1259 | sh_eth_rcv_snd_disable(ndev); |
dc19e4e5 NI |
1260 | |
1261 | ret = phy_ethtool_sset(mdp->phydev, ecmd); | |
1262 | if (ret) | |
1263 | goto error_exit; | |
1264 | ||
1265 | if (ecmd->duplex == DUPLEX_FULL) | |
1266 | mdp->duplex = 1; | |
1267 | else | |
1268 | mdp->duplex = 0; | |
1269 | ||
1270 | if (mdp->cd->set_duplex) | |
1271 | mdp->cd->set_duplex(ndev); | |
1272 | ||
1273 | error_exit: | |
1274 | mdelay(1); | |
1275 | ||
1276 | /* enable tx and rx */ | |
4a55530f | 1277 | sh_eth_rcv_snd_enable(ndev); |
dc19e4e5 NI |
1278 | |
1279 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1280 | ||
1281 | return ret; | |
1282 | } | |
1283 | ||
1284 | static int sh_eth_nway_reset(struct net_device *ndev) | |
1285 | { | |
1286 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1287 | unsigned long flags; | |
1288 | int ret; | |
1289 | ||
1290 | spin_lock_irqsave(&mdp->lock, flags); | |
1291 | ret = phy_start_aneg(mdp->phydev); | |
1292 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1293 | ||
1294 | return ret; | |
1295 | } | |
1296 | ||
1297 | static u32 sh_eth_get_msglevel(struct net_device *ndev) | |
1298 | { | |
1299 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1300 | return mdp->msg_enable; | |
1301 | } | |
1302 | ||
1303 | static void sh_eth_set_msglevel(struct net_device *ndev, u32 value) | |
1304 | { | |
1305 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1306 | mdp->msg_enable = value; | |
1307 | } | |
1308 | ||
1309 | static const char sh_eth_gstrings_stats[][ETH_GSTRING_LEN] = { | |
1310 | "rx_current", "tx_current", | |
1311 | "rx_dirty", "tx_dirty", | |
1312 | }; | |
1313 | #define SH_ETH_STATS_LEN ARRAY_SIZE(sh_eth_gstrings_stats) | |
1314 | ||
1315 | static int sh_eth_get_sset_count(struct net_device *netdev, int sset) | |
1316 | { | |
1317 | switch (sset) { | |
1318 | case ETH_SS_STATS: | |
1319 | return SH_ETH_STATS_LEN; | |
1320 | default: | |
1321 | return -EOPNOTSUPP; | |
1322 | } | |
1323 | } | |
1324 | ||
1325 | static void sh_eth_get_ethtool_stats(struct net_device *ndev, | |
1326 | struct ethtool_stats *stats, u64 *data) | |
1327 | { | |
1328 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1329 | int i = 0; | |
1330 | ||
1331 | /* device-specific stats */ | |
1332 | data[i++] = mdp->cur_rx; | |
1333 | data[i++] = mdp->cur_tx; | |
1334 | data[i++] = mdp->dirty_rx; | |
1335 | data[i++] = mdp->dirty_tx; | |
1336 | } | |
1337 | ||
1338 | static void sh_eth_get_strings(struct net_device *ndev, u32 stringset, u8 *data) | |
1339 | { | |
1340 | switch (stringset) { | |
1341 | case ETH_SS_STATS: | |
1342 | memcpy(data, *sh_eth_gstrings_stats, | |
1343 | sizeof(sh_eth_gstrings_stats)); | |
1344 | break; | |
1345 | } | |
1346 | } | |
1347 | ||
1348 | static struct ethtool_ops sh_eth_ethtool_ops = { | |
1349 | .get_settings = sh_eth_get_settings, | |
1350 | .set_settings = sh_eth_set_settings, | |
1351 | .nway_reset = sh_eth_nway_reset, | |
1352 | .get_msglevel = sh_eth_get_msglevel, | |
1353 | .set_msglevel = sh_eth_set_msglevel, | |
1354 | .get_link = ethtool_op_get_link, | |
1355 | .get_strings = sh_eth_get_strings, | |
1356 | .get_ethtool_stats = sh_eth_get_ethtool_stats, | |
1357 | .get_sset_count = sh_eth_get_sset_count, | |
1358 | }; | |
1359 | ||
86a74ff2 NI |
1360 | /* network device open function */ |
1361 | static int sh_eth_open(struct net_device *ndev) | |
1362 | { | |
1363 | int ret = 0; | |
1364 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1365 | ||
bcd5149d MD |
1366 | pm_runtime_get_sync(&mdp->pdev->dev); |
1367 | ||
a0607fd3 | 1368 | ret = request_irq(ndev->irq, sh_eth_interrupt, |
f29a3d04 | 1369 | #if defined(CONFIG_CPU_SUBTYPE_SH7763) || \ |
dc19e4e5 NI |
1370 | defined(CONFIG_CPU_SUBTYPE_SH7764) || \ |
1371 | defined(CONFIG_CPU_SUBTYPE_SH7757) | |
0e0fde3c NI |
1372 | IRQF_SHARED, |
1373 | #else | |
1374 | 0, | |
1375 | #endif | |
1376 | ndev->name, ndev); | |
86a74ff2 | 1377 | if (ret) { |
380af9e3 | 1378 | dev_err(&ndev->dev, "Can not assign IRQ number\n"); |
86a74ff2 NI |
1379 | return ret; |
1380 | } | |
1381 | ||
1382 | /* Descriptor set */ | |
1383 | ret = sh_eth_ring_init(ndev); | |
1384 | if (ret) | |
1385 | goto out_free_irq; | |
1386 | ||
1387 | /* device init */ | |
1388 | ret = sh_eth_dev_init(ndev); | |
1389 | if (ret) | |
1390 | goto out_free_irq; | |
1391 | ||
1392 | /* PHY control start*/ | |
1393 | ret = sh_eth_phy_start(ndev); | |
1394 | if (ret) | |
1395 | goto out_free_irq; | |
1396 | ||
1397 | /* Set the timer to check for link beat. */ | |
1398 | init_timer(&mdp->timer); | |
1399 | mdp->timer.expires = (jiffies + (24 * HZ)) / 10;/* 2.4 sec. */ | |
b0ca2a21 | 1400 | setup_timer(&mdp->timer, sh_eth_timer, (unsigned long)ndev); |
86a74ff2 NI |
1401 | |
1402 | return ret; | |
1403 | ||
1404 | out_free_irq: | |
1405 | free_irq(ndev->irq, ndev); | |
bcd5149d | 1406 | pm_runtime_put_sync(&mdp->pdev->dev); |
86a74ff2 NI |
1407 | return ret; |
1408 | } | |
1409 | ||
1410 | /* Timeout function */ | |
1411 | static void sh_eth_tx_timeout(struct net_device *ndev) | |
1412 | { | |
1413 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
1414 | struct sh_eth_rxdesc *rxdesc; |
1415 | int i; | |
1416 | ||
1417 | netif_stop_queue(ndev); | |
1418 | ||
dc19e4e5 NI |
1419 | if (netif_msg_timer(mdp)) |
1420 | dev_err(&ndev->dev, "%s: transmit timed out, status %8.8x," | |
4a55530f | 1421 | " resetting...\n", ndev->name, (int)sh_eth_read(ndev, EESR)); |
86a74ff2 NI |
1422 | |
1423 | /* tx_errors count up */ | |
1424 | mdp->stats.tx_errors++; | |
1425 | ||
1426 | /* timer off */ | |
1427 | del_timer_sync(&mdp->timer); | |
1428 | ||
1429 | /* Free all the skbuffs in the Rx queue. */ | |
1430 | for (i = 0; i < RX_RING_SIZE; i++) { | |
1431 | rxdesc = &mdp->rx_ring[i]; | |
1432 | rxdesc->status = 0; | |
1433 | rxdesc->addr = 0xBADF00D0; | |
1434 | if (mdp->rx_skbuff[i]) | |
1435 | dev_kfree_skb(mdp->rx_skbuff[i]); | |
1436 | mdp->rx_skbuff[i] = NULL; | |
1437 | } | |
1438 | for (i = 0; i < TX_RING_SIZE; i++) { | |
1439 | if (mdp->tx_skbuff[i]) | |
1440 | dev_kfree_skb(mdp->tx_skbuff[i]); | |
1441 | mdp->tx_skbuff[i] = NULL; | |
1442 | } | |
1443 | ||
1444 | /* device init */ | |
1445 | sh_eth_dev_init(ndev); | |
1446 | ||
1447 | /* timer on */ | |
1448 | mdp->timer.expires = (jiffies + (24 * HZ)) / 10;/* 2.4 sec. */ | |
1449 | add_timer(&mdp->timer); | |
1450 | } | |
1451 | ||
1452 | /* Packet transmit function */ | |
1453 | static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev) | |
1454 | { | |
1455 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1456 | struct sh_eth_txdesc *txdesc; | |
1457 | u32 entry; | |
fb5e2f9b | 1458 | unsigned long flags; |
86a74ff2 NI |
1459 | |
1460 | spin_lock_irqsave(&mdp->lock, flags); | |
1461 | if ((mdp->cur_tx - mdp->dirty_tx) >= (TX_RING_SIZE - 4)) { | |
1462 | if (!sh_eth_txfree(ndev)) { | |
dc19e4e5 NI |
1463 | if (netif_msg_tx_queued(mdp)) |
1464 | dev_warn(&ndev->dev, "TxFD exhausted.\n"); | |
86a74ff2 NI |
1465 | netif_stop_queue(ndev); |
1466 | spin_unlock_irqrestore(&mdp->lock, flags); | |
5b548140 | 1467 | return NETDEV_TX_BUSY; |
86a74ff2 NI |
1468 | } |
1469 | } | |
1470 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1471 | ||
1472 | entry = mdp->cur_tx % TX_RING_SIZE; | |
1473 | mdp->tx_skbuff[entry] = skb; | |
1474 | txdesc = &mdp->tx_ring[entry]; | |
0029d64a | 1475 | txdesc->addr = virt_to_phys(skb->data); |
86a74ff2 | 1476 | /* soft swap. */ |
380af9e3 YS |
1477 | if (!mdp->cd->hw_swap) |
1478 | sh_eth_soft_swap(phys_to_virt(ALIGN(txdesc->addr, 4)), | |
1479 | skb->len + 2); | |
86a74ff2 NI |
1480 | /* write back */ |
1481 | __flush_purge_region(skb->data, skb->len); | |
1482 | if (skb->len < ETHERSMALL) | |
1483 | txdesc->buffer_length = ETHERSMALL; | |
1484 | else | |
1485 | txdesc->buffer_length = skb->len; | |
1486 | ||
1487 | if (entry >= TX_RING_SIZE - 1) | |
71557a37 | 1488 | txdesc->status |= cpu_to_edmac(mdp, TD_TACT | TD_TDLE); |
86a74ff2 | 1489 | else |
71557a37 | 1490 | txdesc->status |= cpu_to_edmac(mdp, TD_TACT); |
86a74ff2 NI |
1491 | |
1492 | mdp->cur_tx++; | |
1493 | ||
c5ed5368 YS |
1494 | if (!(sh_eth_read(ndev, EDTRR) & sh_eth_get_edtrr_trns(mdp))) |
1495 | sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR); | |
b0ca2a21 | 1496 | |
6ed10654 | 1497 | return NETDEV_TX_OK; |
86a74ff2 NI |
1498 | } |
1499 | ||
1500 | /* device close function */ | |
1501 | static int sh_eth_close(struct net_device *ndev) | |
1502 | { | |
1503 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
1504 | int ringsize; |
1505 | ||
1506 | netif_stop_queue(ndev); | |
1507 | ||
1508 | /* Disable interrupts by clearing the interrupt mask. */ | |
4a55530f | 1509 | sh_eth_write(ndev, 0x0000, EESIPR); |
86a74ff2 NI |
1510 | |
1511 | /* Stop the chip's Tx and Rx processes. */ | |
4a55530f YS |
1512 | sh_eth_write(ndev, 0, EDTRR); |
1513 | sh_eth_write(ndev, 0, EDRRR); | |
86a74ff2 NI |
1514 | |
1515 | /* PHY Disconnect */ | |
1516 | if (mdp->phydev) { | |
1517 | phy_stop(mdp->phydev); | |
1518 | phy_disconnect(mdp->phydev); | |
1519 | } | |
1520 | ||
1521 | free_irq(ndev->irq, ndev); | |
1522 | ||
1523 | del_timer_sync(&mdp->timer); | |
1524 | ||
1525 | /* Free all the skbuffs in the Rx queue. */ | |
1526 | sh_eth_ring_free(ndev); | |
1527 | ||
1528 | /* free DMA buffer */ | |
1529 | ringsize = sizeof(struct sh_eth_rxdesc) * RX_RING_SIZE; | |
1530 | dma_free_coherent(NULL, ringsize, mdp->rx_ring, mdp->rx_desc_dma); | |
1531 | ||
1532 | /* free DMA buffer */ | |
1533 | ringsize = sizeof(struct sh_eth_txdesc) * TX_RING_SIZE; | |
1534 | dma_free_coherent(NULL, ringsize, mdp->tx_ring, mdp->tx_desc_dma); | |
1535 | ||
bcd5149d MD |
1536 | pm_runtime_put_sync(&mdp->pdev->dev); |
1537 | ||
86a74ff2 NI |
1538 | return 0; |
1539 | } | |
1540 | ||
1541 | static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev) | |
1542 | { | |
1543 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 | 1544 | |
bcd5149d MD |
1545 | pm_runtime_get_sync(&mdp->pdev->dev); |
1546 | ||
4a55530f YS |
1547 | mdp->stats.tx_dropped += sh_eth_read(ndev, TROCR); |
1548 | sh_eth_write(ndev, 0, TROCR); /* (write clear) */ | |
1549 | mdp->stats.collisions += sh_eth_read(ndev, CDCR); | |
1550 | sh_eth_write(ndev, 0, CDCR); /* (write clear) */ | |
1551 | mdp->stats.tx_carrier_errors += sh_eth_read(ndev, LCCR); | |
1552 | sh_eth_write(ndev, 0, LCCR); /* (write clear) */ | |
c5ed5368 YS |
1553 | if (sh_eth_is_gether(mdp)) { |
1554 | mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CERCR); | |
1555 | sh_eth_write(ndev, 0, CERCR); /* (write clear) */ | |
1556 | mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CEECR); | |
1557 | sh_eth_write(ndev, 0, CEECR); /* (write clear) */ | |
1558 | } else { | |
1559 | mdp->stats.tx_carrier_errors += sh_eth_read(ndev, CNDCR); | |
1560 | sh_eth_write(ndev, 0, CNDCR); /* (write clear) */ | |
1561 | } | |
bcd5149d MD |
1562 | pm_runtime_put_sync(&mdp->pdev->dev); |
1563 | ||
86a74ff2 NI |
1564 | return &mdp->stats; |
1565 | } | |
1566 | ||
1567 | /* ioctl to device funciotn*/ | |
1568 | static int sh_eth_do_ioctl(struct net_device *ndev, struct ifreq *rq, | |
1569 | int cmd) | |
1570 | { | |
1571 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1572 | struct phy_device *phydev = mdp->phydev; | |
1573 | ||
1574 | if (!netif_running(ndev)) | |
1575 | return -EINVAL; | |
1576 | ||
1577 | if (!phydev) | |
1578 | return -ENODEV; | |
1579 | ||
28b04113 | 1580 | return phy_mii_ioctl(phydev, rq, cmd); |
86a74ff2 NI |
1581 | } |
1582 | ||
380af9e3 | 1583 | #if defined(SH_ETH_HAS_TSU) |
86a74ff2 NI |
1584 | /* Multicast reception directions set */ |
1585 | static void sh_eth_set_multicast_list(struct net_device *ndev) | |
1586 | { | |
86a74ff2 NI |
1587 | if (ndev->flags & IFF_PROMISC) { |
1588 | /* Set promiscuous. */ | |
4a55530f YS |
1589 | sh_eth_write(ndev, (sh_eth_read(ndev, ECMR) & ~ECMR_MCT) | |
1590 | ECMR_PRM, ECMR); | |
86a74ff2 NI |
1591 | } else { |
1592 | /* Normal, unicast/broadcast-only mode. */ | |
4a55530f YS |
1593 | sh_eth_write(ndev, (sh_eth_read(ndev, ECMR) & ~ECMR_PRM) | |
1594 | ECMR_MCT, ECMR); | |
86a74ff2 NI |
1595 | } |
1596 | } | |
4986b996 | 1597 | #endif /* SH_ETH_HAS_TSU */ |
86a74ff2 NI |
1598 | |
1599 | /* SuperH's TSU register init function */ | |
4a55530f | 1600 | static void sh_eth_tsu_init(struct sh_eth_private *mdp) |
86a74ff2 | 1601 | { |
4a55530f YS |
1602 | sh_eth_tsu_write(mdp, 0, TSU_FWEN0); /* Disable forward(0->1) */ |
1603 | sh_eth_tsu_write(mdp, 0, TSU_FWEN1); /* Disable forward(1->0) */ | |
1604 | sh_eth_tsu_write(mdp, 0, TSU_FCM); /* forward fifo 3k-3k */ | |
1605 | sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL0); | |
1606 | sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL1); | |
1607 | sh_eth_tsu_write(mdp, 0, TSU_PRISL0); | |
1608 | sh_eth_tsu_write(mdp, 0, TSU_PRISL1); | |
1609 | sh_eth_tsu_write(mdp, 0, TSU_FWSL0); | |
1610 | sh_eth_tsu_write(mdp, 0, TSU_FWSL1); | |
1611 | sh_eth_tsu_write(mdp, TSU_FWSLC_POSTENU | TSU_FWSLC_POSTENL, TSU_FWSLC); | |
c5ed5368 YS |
1612 | if (sh_eth_is_gether(mdp)) { |
1613 | sh_eth_tsu_write(mdp, 0, TSU_QTAG0); /* Disable QTAG(0->1) */ | |
1614 | sh_eth_tsu_write(mdp, 0, TSU_QTAG1); /* Disable QTAG(1->0) */ | |
1615 | } else { | |
1616 | sh_eth_tsu_write(mdp, 0, TSU_QTAGM0); /* Disable QTAG(0->1) */ | |
1617 | sh_eth_tsu_write(mdp, 0, TSU_QTAGM1); /* Disable QTAG(1->0) */ | |
1618 | } | |
4a55530f YS |
1619 | sh_eth_tsu_write(mdp, 0, TSU_FWSR); /* all interrupt status clear */ |
1620 | sh_eth_tsu_write(mdp, 0, TSU_FWINMK); /* Disable all interrupt */ | |
1621 | sh_eth_tsu_write(mdp, 0, TSU_TEN); /* Disable all CAM entry */ | |
1622 | sh_eth_tsu_write(mdp, 0, TSU_POST1); /* Disable CAM entry [ 0- 7] */ | |
1623 | sh_eth_tsu_write(mdp, 0, TSU_POST2); /* Disable CAM entry [ 8-15] */ | |
1624 | sh_eth_tsu_write(mdp, 0, TSU_POST3); /* Disable CAM entry [16-23] */ | |
1625 | sh_eth_tsu_write(mdp, 0, TSU_POST4); /* Disable CAM entry [24-31] */ | |
86a74ff2 NI |
1626 | } |
1627 | ||
1628 | /* MDIO bus release function */ | |
1629 | static int sh_mdio_release(struct net_device *ndev) | |
1630 | { | |
1631 | struct mii_bus *bus = dev_get_drvdata(&ndev->dev); | |
1632 | ||
1633 | /* unregister mdio bus */ | |
1634 | mdiobus_unregister(bus); | |
1635 | ||
1636 | /* remove mdio bus info from net_device */ | |
1637 | dev_set_drvdata(&ndev->dev, NULL); | |
1638 | ||
0f0b405c DK |
1639 | /* free interrupts memory */ |
1640 | kfree(bus->irq); | |
1641 | ||
86a74ff2 NI |
1642 | /* free bitbang info */ |
1643 | free_mdio_bitbang(bus); | |
1644 | ||
1645 | return 0; | |
1646 | } | |
1647 | ||
1648 | /* MDIO bus init function */ | |
1649 | static int sh_mdio_init(struct net_device *ndev, int id) | |
1650 | { | |
1651 | int ret, i; | |
1652 | struct bb_info *bitbang; | |
1653 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1654 | ||
1655 | /* create bit control struct for PHY */ | |
1656 | bitbang = kzalloc(sizeof(struct bb_info), GFP_KERNEL); | |
1657 | if (!bitbang) { | |
1658 | ret = -ENOMEM; | |
1659 | goto out; | |
1660 | } | |
1661 | ||
1662 | /* bitbang init */ | |
4a55530f | 1663 | bitbang->addr = ndev->base_addr + mdp->reg_offset[PIR]; |
86a74ff2 NI |
1664 | bitbang->mdi_msk = 0x08; |
1665 | bitbang->mdo_msk = 0x04; | |
1666 | bitbang->mmd_msk = 0x02;/* MMD */ | |
1667 | bitbang->mdc_msk = 0x01; | |
1668 | bitbang->ctrl.ops = &bb_ops; | |
1669 | ||
c2e07b3a | 1670 | /* MII controller setting */ |
86a74ff2 NI |
1671 | mdp->mii_bus = alloc_mdio_bitbang(&bitbang->ctrl); |
1672 | if (!mdp->mii_bus) { | |
1673 | ret = -ENOMEM; | |
1674 | goto out_free_bitbang; | |
1675 | } | |
1676 | ||
1677 | /* Hook up MII support for ethtool */ | |
1678 | mdp->mii_bus->name = "sh_mii"; | |
18ee49dd | 1679 | mdp->mii_bus->parent = &ndev->dev; |
fb5e2f9b | 1680 | snprintf(mdp->mii_bus->id, MII_BUS_ID_SIZE, "%x", id); |
86a74ff2 NI |
1681 | |
1682 | /* PHY IRQ */ | |
1683 | mdp->mii_bus->irq = kmalloc(sizeof(int)*PHY_MAX_ADDR, GFP_KERNEL); | |
1684 | if (!mdp->mii_bus->irq) { | |
1685 | ret = -ENOMEM; | |
1686 | goto out_free_bus; | |
1687 | } | |
1688 | ||
1689 | for (i = 0; i < PHY_MAX_ADDR; i++) | |
1690 | mdp->mii_bus->irq[i] = PHY_POLL; | |
1691 | ||
1692 | /* regist mdio bus */ | |
1693 | ret = mdiobus_register(mdp->mii_bus); | |
1694 | if (ret) | |
1695 | goto out_free_irq; | |
1696 | ||
1697 | dev_set_drvdata(&ndev->dev, mdp->mii_bus); | |
1698 | ||
1699 | return 0; | |
1700 | ||
1701 | out_free_irq: | |
1702 | kfree(mdp->mii_bus->irq); | |
1703 | ||
1704 | out_free_bus: | |
298cf9be | 1705 | free_mdio_bitbang(mdp->mii_bus); |
86a74ff2 NI |
1706 | |
1707 | out_free_bitbang: | |
1708 | kfree(bitbang); | |
1709 | ||
1710 | out: | |
1711 | return ret; | |
1712 | } | |
1713 | ||
4a55530f YS |
1714 | static const u16 *sh_eth_get_register_offset(int register_type) |
1715 | { | |
1716 | const u16 *reg_offset = NULL; | |
1717 | ||
1718 | switch (register_type) { | |
1719 | case SH_ETH_REG_GIGABIT: | |
1720 | reg_offset = sh_eth_offset_gigabit; | |
1721 | break; | |
1722 | case SH_ETH_REG_FAST_SH4: | |
1723 | reg_offset = sh_eth_offset_fast_sh4; | |
1724 | break; | |
1725 | case SH_ETH_REG_FAST_SH3_SH2: | |
1726 | reg_offset = sh_eth_offset_fast_sh3_sh2; | |
1727 | break; | |
1728 | default: | |
1729 | printk(KERN_ERR "Unknown register type (%d)\n", register_type); | |
1730 | break; | |
1731 | } | |
1732 | ||
1733 | return reg_offset; | |
1734 | } | |
1735 | ||
ebf84eaa AB |
1736 | static const struct net_device_ops sh_eth_netdev_ops = { |
1737 | .ndo_open = sh_eth_open, | |
1738 | .ndo_stop = sh_eth_close, | |
1739 | .ndo_start_xmit = sh_eth_start_xmit, | |
1740 | .ndo_get_stats = sh_eth_get_stats, | |
380af9e3 | 1741 | #if defined(SH_ETH_HAS_TSU) |
ebf84eaa | 1742 | .ndo_set_multicast_list = sh_eth_set_multicast_list, |
380af9e3 | 1743 | #endif |
ebf84eaa AB |
1744 | .ndo_tx_timeout = sh_eth_tx_timeout, |
1745 | .ndo_do_ioctl = sh_eth_do_ioctl, | |
1746 | .ndo_validate_addr = eth_validate_addr, | |
1747 | .ndo_set_mac_address = eth_mac_addr, | |
1748 | .ndo_change_mtu = eth_change_mtu, | |
1749 | }; | |
1750 | ||
86a74ff2 NI |
1751 | static int sh_eth_drv_probe(struct platform_device *pdev) |
1752 | { | |
9c38657c | 1753 | int ret, devno = 0; |
86a74ff2 NI |
1754 | struct resource *res; |
1755 | struct net_device *ndev = NULL; | |
1756 | struct sh_eth_private *mdp; | |
71557a37 | 1757 | struct sh_eth_plat_data *pd; |
86a74ff2 NI |
1758 | |
1759 | /* get base addr */ | |
1760 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1761 | if (unlikely(res == NULL)) { | |
1762 | dev_err(&pdev->dev, "invalid resource\n"); | |
1763 | ret = -EINVAL; | |
1764 | goto out; | |
1765 | } | |
1766 | ||
1767 | ndev = alloc_etherdev(sizeof(struct sh_eth_private)); | |
1768 | if (!ndev) { | |
380af9e3 | 1769 | dev_err(&pdev->dev, "Could not allocate device.\n"); |
86a74ff2 NI |
1770 | ret = -ENOMEM; |
1771 | goto out; | |
1772 | } | |
1773 | ||
1774 | /* The sh Ether-specific entries in the device structure. */ | |
1775 | ndev->base_addr = res->start; | |
1776 | devno = pdev->id; | |
1777 | if (devno < 0) | |
1778 | devno = 0; | |
1779 | ||
1780 | ndev->dma = -1; | |
cc3c080d | 1781 | ret = platform_get_irq(pdev, 0); |
1782 | if (ret < 0) { | |
86a74ff2 NI |
1783 | ret = -ENODEV; |
1784 | goto out_release; | |
1785 | } | |
cc3c080d | 1786 | ndev->irq = ret; |
86a74ff2 NI |
1787 | |
1788 | SET_NETDEV_DEV(ndev, &pdev->dev); | |
1789 | ||
1790 | /* Fill in the fields of the device structure with ethernet values. */ | |
1791 | ether_setup(ndev); | |
1792 | ||
1793 | mdp = netdev_priv(ndev); | |
1794 | spin_lock_init(&mdp->lock); | |
bcd5149d MD |
1795 | mdp->pdev = pdev; |
1796 | pm_runtime_enable(&pdev->dev); | |
1797 | pm_runtime_resume(&pdev->dev); | |
86a74ff2 | 1798 | |
71557a37 | 1799 | pd = (struct sh_eth_plat_data *)(pdev->dev.platform_data); |
86a74ff2 | 1800 | /* get PHY ID */ |
71557a37 | 1801 | mdp->phy_id = pd->phy; |
e47c9052 | 1802 | mdp->phy_interface = pd->phy_interface; |
71557a37 YS |
1803 | /* EDMAC endian */ |
1804 | mdp->edmac_endian = pd->edmac_endian; | |
4923576b YS |
1805 | mdp->no_ether_link = pd->no_ether_link; |
1806 | mdp->ether_link_active_low = pd->ether_link_active_low; | |
4a55530f | 1807 | mdp->reg_offset = sh_eth_get_register_offset(pd->register_type); |
86a74ff2 | 1808 | |
380af9e3 | 1809 | /* set cpu data */ |
8fcd4961 YS |
1810 | #if defined(SH_ETH_HAS_BOTH_MODULES) |
1811 | mdp->cd = sh_eth_get_cpu_data(mdp); | |
1812 | #else | |
380af9e3 | 1813 | mdp->cd = &sh_eth_my_cpu_data; |
8fcd4961 | 1814 | #endif |
380af9e3 YS |
1815 | sh_eth_set_default_cpu_data(mdp->cd); |
1816 | ||
86a74ff2 | 1817 | /* set function */ |
ebf84eaa | 1818 | ndev->netdev_ops = &sh_eth_netdev_ops; |
dc19e4e5 | 1819 | SET_ETHTOOL_OPS(ndev, &sh_eth_ethtool_ops); |
86a74ff2 NI |
1820 | ndev->watchdog_timeo = TX_TIMEOUT; |
1821 | ||
dc19e4e5 NI |
1822 | /* debug message level */ |
1823 | mdp->msg_enable = SH_ETH_DEF_MSG_ENABLE; | |
86a74ff2 NI |
1824 | mdp->post_rx = POST_RX >> (devno << 1); |
1825 | mdp->post_fw = POST_FW >> (devno << 1); | |
1826 | ||
1827 | /* read and set MAC address */ | |
748031f9 | 1828 | read_mac_address(ndev, pd->mac_addr); |
86a74ff2 NI |
1829 | |
1830 | /* First device only init */ | |
1831 | if (!devno) { | |
4986b996 YS |
1832 | if (mdp->cd->tsu) { |
1833 | struct resource *rtsu; | |
1834 | rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1); | |
1835 | if (!rtsu) { | |
1836 | dev_err(&pdev->dev, "Not found TSU resource\n"); | |
1837 | goto out_release; | |
1838 | } | |
1839 | mdp->tsu_addr = ioremap(rtsu->start, | |
1840 | resource_size(rtsu)); | |
1841 | } | |
380af9e3 YS |
1842 | if (mdp->cd->chip_reset) |
1843 | mdp->cd->chip_reset(ndev); | |
86a74ff2 | 1844 | |
4986b996 YS |
1845 | if (mdp->cd->tsu) { |
1846 | /* TSU init (Init only)*/ | |
1847 | sh_eth_tsu_init(mdp); | |
1848 | } | |
86a74ff2 NI |
1849 | } |
1850 | ||
1851 | /* network device register */ | |
1852 | ret = register_netdev(ndev); | |
1853 | if (ret) | |
1854 | goto out_release; | |
1855 | ||
1856 | /* mdio bus init */ | |
1857 | ret = sh_mdio_init(ndev, pdev->id); | |
1858 | if (ret) | |
1859 | goto out_unregister; | |
1860 | ||
6cd9b49d HS |
1861 | /* print device infomation */ |
1862 | pr_info("Base address at 0x%x, %pM, IRQ %d.\n", | |
1863 | (u32)ndev->base_addr, ndev->dev_addr, ndev->irq); | |
86a74ff2 NI |
1864 | |
1865 | platform_set_drvdata(pdev, ndev); | |
1866 | ||
1867 | return ret; | |
1868 | ||
1869 | out_unregister: | |
1870 | unregister_netdev(ndev); | |
1871 | ||
1872 | out_release: | |
1873 | /* net_dev free */ | |
4986b996 YS |
1874 | if (mdp->tsu_addr) |
1875 | iounmap(mdp->tsu_addr); | |
86a74ff2 NI |
1876 | if (ndev) |
1877 | free_netdev(ndev); | |
1878 | ||
1879 | out: | |
1880 | return ret; | |
1881 | } | |
1882 | ||
1883 | static int sh_eth_drv_remove(struct platform_device *pdev) | |
1884 | { | |
1885 | struct net_device *ndev = platform_get_drvdata(pdev); | |
4986b996 | 1886 | struct sh_eth_private *mdp = netdev_priv(ndev); |
86a74ff2 | 1887 | |
4986b996 | 1888 | iounmap(mdp->tsu_addr); |
86a74ff2 NI |
1889 | sh_mdio_release(ndev); |
1890 | unregister_netdev(ndev); | |
bcd5149d | 1891 | pm_runtime_disable(&pdev->dev); |
86a74ff2 NI |
1892 | free_netdev(ndev); |
1893 | platform_set_drvdata(pdev, NULL); | |
1894 | ||
1895 | return 0; | |
1896 | } | |
1897 | ||
bcd5149d MD |
1898 | static int sh_eth_runtime_nop(struct device *dev) |
1899 | { | |
1900 | /* | |
1901 | * Runtime PM callback shared between ->runtime_suspend() | |
1902 | * and ->runtime_resume(). Simply returns success. | |
1903 | * | |
1904 | * This driver re-initializes all registers after | |
1905 | * pm_runtime_get_sync() anyway so there is no need | |
1906 | * to save and restore registers here. | |
1907 | */ | |
1908 | return 0; | |
1909 | } | |
1910 | ||
1911 | static struct dev_pm_ops sh_eth_dev_pm_ops = { | |
1912 | .runtime_suspend = sh_eth_runtime_nop, | |
1913 | .runtime_resume = sh_eth_runtime_nop, | |
1914 | }; | |
1915 | ||
86a74ff2 NI |
1916 | static struct platform_driver sh_eth_driver = { |
1917 | .probe = sh_eth_drv_probe, | |
1918 | .remove = sh_eth_drv_remove, | |
1919 | .driver = { | |
1920 | .name = CARDNAME, | |
bcd5149d | 1921 | .pm = &sh_eth_dev_pm_ops, |
86a74ff2 NI |
1922 | }, |
1923 | }; | |
1924 | ||
1925 | static int __init sh_eth_init(void) | |
1926 | { | |
1927 | return platform_driver_register(&sh_eth_driver); | |
1928 | } | |
1929 | ||
1930 | static void __exit sh_eth_cleanup(void) | |
1931 | { | |
1932 | platform_driver_unregister(&sh_eth_driver); | |
1933 | } | |
1934 | ||
1935 | module_init(sh_eth_init); | |
1936 | module_exit(sh_eth_cleanup); | |
1937 | ||
1938 | MODULE_AUTHOR("Nobuhiro Iwamatsu, Yoshihiro Shimoda"); | |
1939 | MODULE_DESCRIPTION("Renesas SuperH Ethernet driver"); | |
1940 | MODULE_LICENSE("GPL v2"); |