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128296fc | 1 | /* SuperH Ethernet device driver |
86a74ff2 | 2 | * |
966d6dbb | 3 | * Copyright (C) 2014 Renesas Electronics Corporation |
f0e81fec | 4 | * Copyright (C) 2006-2012 Nobuhiro Iwamatsu |
b356e978 SS |
5 | * Copyright (C) 2008-2014 Renesas Solutions Corp. |
6 | * Copyright (C) 2013-2014 Cogent Embedded, Inc. | |
702eca02 | 7 | * Copyright (C) 2014 Codethink Limited |
86a74ff2 NI |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms and conditions of the GNU General Public License, | |
11 | * version 2, as published by the Free Software Foundation. | |
12 | * | |
13 | * This program is distributed in the hope it will be useful, but WITHOUT | |
14 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
16 | * more details. | |
86a74ff2 NI |
17 | * |
18 | * The full GNU General Public License is included in this distribution in | |
19 | * the file called "COPYING". | |
20 | */ | |
21 | ||
0654011d YS |
22 | #include <linux/module.h> |
23 | #include <linux/kernel.h> | |
24 | #include <linux/spinlock.h> | |
6a27cded | 25 | #include <linux/interrupt.h> |
86a74ff2 NI |
26 | #include <linux/dma-mapping.h> |
27 | #include <linux/etherdevice.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/platform_device.h> | |
30 | #include <linux/mdio-bitbang.h> | |
31 | #include <linux/netdevice.h> | |
b356e978 SS |
32 | #include <linux/of.h> |
33 | #include <linux/of_device.h> | |
34 | #include <linux/of_irq.h> | |
35 | #include <linux/of_net.h> | |
86a74ff2 NI |
36 | #include <linux/phy.h> |
37 | #include <linux/cache.h> | |
38 | #include <linux/io.h> | |
bcd5149d | 39 | #include <linux/pm_runtime.h> |
5a0e3ad6 | 40 | #include <linux/slab.h> |
dc19e4e5 | 41 | #include <linux/ethtool.h> |
fdb37a7f | 42 | #include <linux/if_vlan.h> |
f0e81fec | 43 | #include <linux/clk.h> |
d4fa0e35 | 44 | #include <linux/sh_eth.h> |
702eca02 | 45 | #include <linux/of_mdio.h> |
86a74ff2 NI |
46 | |
47 | #include "sh_eth.h" | |
48 | ||
dc19e4e5 NI |
49 | #define SH_ETH_DEF_MSG_ENABLE \ |
50 | (NETIF_MSG_LINK | \ | |
51 | NETIF_MSG_TIMER | \ | |
52 | NETIF_MSG_RX_ERR| \ | |
53 | NETIF_MSG_TX_ERR) | |
54 | ||
3365711d BH |
55 | #define SH_ETH_OFFSET_DEFAULTS \ |
56 | [0 ... SH_ETH_MAX_REGISTER_OFFSET - 1] = SH_ETH_OFFSET_INVALID | |
57 | ||
c0013f6f | 58 | static const u16 sh_eth_offset_gigabit[SH_ETH_MAX_REGISTER_OFFSET] = { |
3365711d BH |
59 | SH_ETH_OFFSET_DEFAULTS, |
60 | ||
c0013f6f SS |
61 | [EDSR] = 0x0000, |
62 | [EDMR] = 0x0400, | |
63 | [EDTRR] = 0x0408, | |
64 | [EDRRR] = 0x0410, | |
65 | [EESR] = 0x0428, | |
66 | [EESIPR] = 0x0430, | |
67 | [TDLAR] = 0x0010, | |
68 | [TDFAR] = 0x0014, | |
69 | [TDFXR] = 0x0018, | |
70 | [TDFFR] = 0x001c, | |
71 | [RDLAR] = 0x0030, | |
72 | [RDFAR] = 0x0034, | |
73 | [RDFXR] = 0x0038, | |
74 | [RDFFR] = 0x003c, | |
75 | [TRSCER] = 0x0438, | |
76 | [RMFCR] = 0x0440, | |
77 | [TFTR] = 0x0448, | |
78 | [FDR] = 0x0450, | |
79 | [RMCR] = 0x0458, | |
80 | [RPADIR] = 0x0460, | |
81 | [FCFTR] = 0x0468, | |
82 | [CSMR] = 0x04E4, | |
83 | ||
84 | [ECMR] = 0x0500, | |
85 | [ECSR] = 0x0510, | |
86 | [ECSIPR] = 0x0518, | |
87 | [PIR] = 0x0520, | |
88 | [PSR] = 0x0528, | |
89 | [PIPR] = 0x052c, | |
90 | [RFLR] = 0x0508, | |
91 | [APR] = 0x0554, | |
92 | [MPR] = 0x0558, | |
93 | [PFTCR] = 0x055c, | |
94 | [PFRCR] = 0x0560, | |
95 | [TPAUSER] = 0x0564, | |
96 | [GECMR] = 0x05b0, | |
97 | [BCULR] = 0x05b4, | |
98 | [MAHR] = 0x05c0, | |
99 | [MALR] = 0x05c8, | |
100 | [TROCR] = 0x0700, | |
101 | [CDCR] = 0x0708, | |
102 | [LCCR] = 0x0710, | |
103 | [CEFCR] = 0x0740, | |
104 | [FRECR] = 0x0748, | |
105 | [TSFRCR] = 0x0750, | |
106 | [TLFRCR] = 0x0758, | |
107 | [RFCR] = 0x0760, | |
108 | [CERCR] = 0x0768, | |
109 | [CEECR] = 0x0770, | |
110 | [MAFCR] = 0x0778, | |
111 | [RMII_MII] = 0x0790, | |
112 | ||
113 | [ARSTR] = 0x0000, | |
114 | [TSU_CTRST] = 0x0004, | |
115 | [TSU_FWEN0] = 0x0010, | |
116 | [TSU_FWEN1] = 0x0014, | |
117 | [TSU_FCM] = 0x0018, | |
118 | [TSU_BSYSL0] = 0x0020, | |
119 | [TSU_BSYSL1] = 0x0024, | |
120 | [TSU_PRISL0] = 0x0028, | |
121 | [TSU_PRISL1] = 0x002c, | |
122 | [TSU_FWSL0] = 0x0030, | |
123 | [TSU_FWSL1] = 0x0034, | |
124 | [TSU_FWSLC] = 0x0038, | |
125 | [TSU_QTAG0] = 0x0040, | |
126 | [TSU_QTAG1] = 0x0044, | |
127 | [TSU_FWSR] = 0x0050, | |
128 | [TSU_FWINMK] = 0x0054, | |
129 | [TSU_ADQT0] = 0x0048, | |
130 | [TSU_ADQT1] = 0x004c, | |
131 | [TSU_VTAG0] = 0x0058, | |
132 | [TSU_VTAG1] = 0x005c, | |
133 | [TSU_ADSBSY] = 0x0060, | |
134 | [TSU_TEN] = 0x0064, | |
135 | [TSU_POST1] = 0x0070, | |
136 | [TSU_POST2] = 0x0074, | |
137 | [TSU_POST3] = 0x0078, | |
138 | [TSU_POST4] = 0x007c, | |
139 | [TSU_ADRH0] = 0x0100, | |
c0013f6f SS |
140 | |
141 | [TXNLCR0] = 0x0080, | |
142 | [TXALCR0] = 0x0084, | |
143 | [RXNLCR0] = 0x0088, | |
144 | [RXALCR0] = 0x008c, | |
145 | [FWNLCR0] = 0x0090, | |
146 | [FWALCR0] = 0x0094, | |
147 | [TXNLCR1] = 0x00a0, | |
148 | [TXALCR1] = 0x00a0, | |
149 | [RXNLCR1] = 0x00a8, | |
150 | [RXALCR1] = 0x00ac, | |
151 | [FWNLCR1] = 0x00b0, | |
152 | [FWALCR1] = 0x00b4, | |
153 | }; | |
154 | ||
db893473 | 155 | static const u16 sh_eth_offset_fast_rz[SH_ETH_MAX_REGISTER_OFFSET] = { |
3365711d BH |
156 | SH_ETH_OFFSET_DEFAULTS, |
157 | ||
db893473 SH |
158 | [EDSR] = 0x0000, |
159 | [EDMR] = 0x0400, | |
160 | [EDTRR] = 0x0408, | |
161 | [EDRRR] = 0x0410, | |
162 | [EESR] = 0x0428, | |
163 | [EESIPR] = 0x0430, | |
164 | [TDLAR] = 0x0010, | |
165 | [TDFAR] = 0x0014, | |
166 | [TDFXR] = 0x0018, | |
167 | [TDFFR] = 0x001c, | |
168 | [RDLAR] = 0x0030, | |
169 | [RDFAR] = 0x0034, | |
170 | [RDFXR] = 0x0038, | |
171 | [RDFFR] = 0x003c, | |
172 | [TRSCER] = 0x0438, | |
173 | [RMFCR] = 0x0440, | |
174 | [TFTR] = 0x0448, | |
175 | [FDR] = 0x0450, | |
176 | [RMCR] = 0x0458, | |
177 | [RPADIR] = 0x0460, | |
178 | [FCFTR] = 0x0468, | |
179 | [CSMR] = 0x04E4, | |
180 | ||
181 | [ECMR] = 0x0500, | |
182 | [RFLR] = 0x0508, | |
183 | [ECSR] = 0x0510, | |
184 | [ECSIPR] = 0x0518, | |
185 | [PIR] = 0x0520, | |
186 | [APR] = 0x0554, | |
187 | [MPR] = 0x0558, | |
188 | [PFTCR] = 0x055c, | |
189 | [PFRCR] = 0x0560, | |
190 | [TPAUSER] = 0x0564, | |
191 | [MAHR] = 0x05c0, | |
192 | [MALR] = 0x05c8, | |
193 | [CEFCR] = 0x0740, | |
194 | [FRECR] = 0x0748, | |
195 | [TSFRCR] = 0x0750, | |
196 | [TLFRCR] = 0x0758, | |
197 | [RFCR] = 0x0760, | |
198 | [MAFCR] = 0x0778, | |
199 | ||
200 | [ARSTR] = 0x0000, | |
201 | [TSU_CTRST] = 0x0004, | |
202 | [TSU_VTAG0] = 0x0058, | |
203 | [TSU_ADSBSY] = 0x0060, | |
204 | [TSU_TEN] = 0x0064, | |
205 | [TSU_ADRH0] = 0x0100, | |
db893473 SH |
206 | |
207 | [TXNLCR0] = 0x0080, | |
208 | [TXALCR0] = 0x0084, | |
209 | [RXNLCR0] = 0x0088, | |
210 | [RXALCR0] = 0x008C, | |
211 | }; | |
212 | ||
a3f109bd | 213 | static const u16 sh_eth_offset_fast_rcar[SH_ETH_MAX_REGISTER_OFFSET] = { |
3365711d BH |
214 | SH_ETH_OFFSET_DEFAULTS, |
215 | ||
a3f109bd SS |
216 | [ECMR] = 0x0300, |
217 | [RFLR] = 0x0308, | |
218 | [ECSR] = 0x0310, | |
219 | [ECSIPR] = 0x0318, | |
220 | [PIR] = 0x0320, | |
221 | [PSR] = 0x0328, | |
222 | [RDMLR] = 0x0340, | |
223 | [IPGR] = 0x0350, | |
224 | [APR] = 0x0354, | |
225 | [MPR] = 0x0358, | |
226 | [RFCF] = 0x0360, | |
227 | [TPAUSER] = 0x0364, | |
228 | [TPAUSECR] = 0x0368, | |
229 | [MAHR] = 0x03c0, | |
230 | [MALR] = 0x03c8, | |
231 | [TROCR] = 0x03d0, | |
232 | [CDCR] = 0x03d4, | |
233 | [LCCR] = 0x03d8, | |
234 | [CNDCR] = 0x03dc, | |
235 | [CEFCR] = 0x03e4, | |
236 | [FRECR] = 0x03e8, | |
237 | [TSFRCR] = 0x03ec, | |
238 | [TLFRCR] = 0x03f0, | |
239 | [RFCR] = 0x03f4, | |
240 | [MAFCR] = 0x03f8, | |
241 | ||
242 | [EDMR] = 0x0200, | |
243 | [EDTRR] = 0x0208, | |
244 | [EDRRR] = 0x0210, | |
245 | [TDLAR] = 0x0218, | |
246 | [RDLAR] = 0x0220, | |
247 | [EESR] = 0x0228, | |
248 | [EESIPR] = 0x0230, | |
249 | [TRSCER] = 0x0238, | |
250 | [RMFCR] = 0x0240, | |
251 | [TFTR] = 0x0248, | |
252 | [FDR] = 0x0250, | |
253 | [RMCR] = 0x0258, | |
254 | [TFUCR] = 0x0264, | |
255 | [RFOCR] = 0x0268, | |
55754f19 | 256 | [RMIIMODE] = 0x026c, |
a3f109bd SS |
257 | [FCFTR] = 0x0270, |
258 | [TRIMD] = 0x027c, | |
259 | }; | |
260 | ||
c0013f6f | 261 | static const u16 sh_eth_offset_fast_sh4[SH_ETH_MAX_REGISTER_OFFSET] = { |
3365711d BH |
262 | SH_ETH_OFFSET_DEFAULTS, |
263 | ||
c0013f6f SS |
264 | [ECMR] = 0x0100, |
265 | [RFLR] = 0x0108, | |
266 | [ECSR] = 0x0110, | |
267 | [ECSIPR] = 0x0118, | |
268 | [PIR] = 0x0120, | |
269 | [PSR] = 0x0128, | |
270 | [RDMLR] = 0x0140, | |
271 | [IPGR] = 0x0150, | |
272 | [APR] = 0x0154, | |
273 | [MPR] = 0x0158, | |
274 | [TPAUSER] = 0x0164, | |
275 | [RFCF] = 0x0160, | |
276 | [TPAUSECR] = 0x0168, | |
277 | [BCFRR] = 0x016c, | |
278 | [MAHR] = 0x01c0, | |
279 | [MALR] = 0x01c8, | |
280 | [TROCR] = 0x01d0, | |
281 | [CDCR] = 0x01d4, | |
282 | [LCCR] = 0x01d8, | |
283 | [CNDCR] = 0x01dc, | |
284 | [CEFCR] = 0x01e4, | |
285 | [FRECR] = 0x01e8, | |
286 | [TSFRCR] = 0x01ec, | |
287 | [TLFRCR] = 0x01f0, | |
288 | [RFCR] = 0x01f4, | |
289 | [MAFCR] = 0x01f8, | |
290 | [RTRATE] = 0x01fc, | |
291 | ||
292 | [EDMR] = 0x0000, | |
293 | [EDTRR] = 0x0008, | |
294 | [EDRRR] = 0x0010, | |
295 | [TDLAR] = 0x0018, | |
296 | [RDLAR] = 0x0020, | |
297 | [EESR] = 0x0028, | |
298 | [EESIPR] = 0x0030, | |
299 | [TRSCER] = 0x0038, | |
300 | [RMFCR] = 0x0040, | |
301 | [TFTR] = 0x0048, | |
302 | [FDR] = 0x0050, | |
303 | [RMCR] = 0x0058, | |
304 | [TFUCR] = 0x0064, | |
305 | [RFOCR] = 0x0068, | |
306 | [FCFTR] = 0x0070, | |
307 | [RPADIR] = 0x0078, | |
308 | [TRIMD] = 0x007c, | |
309 | [RBWAR] = 0x00c8, | |
310 | [RDFAR] = 0x00cc, | |
311 | [TBRAR] = 0x00d4, | |
312 | [TDFAR] = 0x00d8, | |
313 | }; | |
314 | ||
315 | static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = { | |
3365711d BH |
316 | SH_ETH_OFFSET_DEFAULTS, |
317 | ||
d8b0426a SS |
318 | [EDMR] = 0x0000, |
319 | [EDTRR] = 0x0004, | |
320 | [EDRRR] = 0x0008, | |
321 | [TDLAR] = 0x000c, | |
322 | [RDLAR] = 0x0010, | |
323 | [EESR] = 0x0014, | |
324 | [EESIPR] = 0x0018, | |
325 | [TRSCER] = 0x001c, | |
326 | [RMFCR] = 0x0020, | |
327 | [TFTR] = 0x0024, | |
328 | [FDR] = 0x0028, | |
329 | [RMCR] = 0x002c, | |
330 | [EDOCR] = 0x0030, | |
331 | [FCFTR] = 0x0034, | |
332 | [RPADIR] = 0x0038, | |
333 | [TRIMD] = 0x003c, | |
334 | [RBWAR] = 0x0040, | |
335 | [RDFAR] = 0x0044, | |
336 | [TBRAR] = 0x004c, | |
337 | [TDFAR] = 0x0050, | |
338 | ||
c0013f6f SS |
339 | [ECMR] = 0x0160, |
340 | [ECSR] = 0x0164, | |
341 | [ECSIPR] = 0x0168, | |
342 | [PIR] = 0x016c, | |
343 | [MAHR] = 0x0170, | |
344 | [MALR] = 0x0174, | |
345 | [RFLR] = 0x0178, | |
346 | [PSR] = 0x017c, | |
347 | [TROCR] = 0x0180, | |
348 | [CDCR] = 0x0184, | |
349 | [LCCR] = 0x0188, | |
350 | [CNDCR] = 0x018c, | |
351 | [CEFCR] = 0x0194, | |
352 | [FRECR] = 0x0198, | |
353 | [TSFRCR] = 0x019c, | |
354 | [TLFRCR] = 0x01a0, | |
355 | [RFCR] = 0x01a4, | |
356 | [MAFCR] = 0x01a8, | |
357 | [IPGR] = 0x01b4, | |
358 | [APR] = 0x01b8, | |
359 | [MPR] = 0x01bc, | |
360 | [TPAUSER] = 0x01c4, | |
361 | [BCFR] = 0x01cc, | |
362 | ||
363 | [ARSTR] = 0x0000, | |
364 | [TSU_CTRST] = 0x0004, | |
365 | [TSU_FWEN0] = 0x0010, | |
366 | [TSU_FWEN1] = 0x0014, | |
367 | [TSU_FCM] = 0x0018, | |
368 | [TSU_BSYSL0] = 0x0020, | |
369 | [TSU_BSYSL1] = 0x0024, | |
370 | [TSU_PRISL0] = 0x0028, | |
371 | [TSU_PRISL1] = 0x002c, | |
372 | [TSU_FWSL0] = 0x0030, | |
373 | [TSU_FWSL1] = 0x0034, | |
374 | [TSU_FWSLC] = 0x0038, | |
375 | [TSU_QTAGM0] = 0x0040, | |
376 | [TSU_QTAGM1] = 0x0044, | |
377 | [TSU_ADQT0] = 0x0048, | |
378 | [TSU_ADQT1] = 0x004c, | |
379 | [TSU_FWSR] = 0x0050, | |
380 | [TSU_FWINMK] = 0x0054, | |
381 | [TSU_ADSBSY] = 0x0060, | |
382 | [TSU_TEN] = 0x0064, | |
383 | [TSU_POST1] = 0x0070, | |
384 | [TSU_POST2] = 0x0074, | |
385 | [TSU_POST3] = 0x0078, | |
386 | [TSU_POST4] = 0x007c, | |
387 | ||
388 | [TXNLCR0] = 0x0080, | |
389 | [TXALCR0] = 0x0084, | |
390 | [RXNLCR0] = 0x0088, | |
391 | [RXALCR0] = 0x008c, | |
392 | [FWNLCR0] = 0x0090, | |
393 | [FWALCR0] = 0x0094, | |
394 | [TXNLCR1] = 0x00a0, | |
395 | [TXALCR1] = 0x00a0, | |
396 | [RXNLCR1] = 0x00a8, | |
397 | [RXALCR1] = 0x00ac, | |
398 | [FWNLCR1] = 0x00b0, | |
399 | [FWALCR1] = 0x00b4, | |
400 | ||
401 | [TSU_ADRH0] = 0x0100, | |
c0013f6f SS |
402 | }; |
403 | ||
740c7f31 BH |
404 | static void sh_eth_rcv_snd_disable(struct net_device *ndev); |
405 | static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev); | |
406 | ||
504c8ca5 | 407 | static bool sh_eth_is_gether(struct sh_eth_private *mdp) |
dabdde9e | 408 | { |
504c8ca5 | 409 | return mdp->reg_offset == sh_eth_offset_gigabit; |
dabdde9e NI |
410 | } |
411 | ||
db893473 SH |
412 | static bool sh_eth_is_rz_fast_ether(struct sh_eth_private *mdp) |
413 | { | |
414 | return mdp->reg_offset == sh_eth_offset_fast_rz; | |
415 | } | |
416 | ||
8e994402 | 417 | static void sh_eth_select_mii(struct net_device *ndev) |
5e7a76be NI |
418 | { |
419 | u32 value = 0x0; | |
420 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
421 | ||
422 | switch (mdp->phy_interface) { | |
423 | case PHY_INTERFACE_MODE_GMII: | |
424 | value = 0x2; | |
425 | break; | |
426 | case PHY_INTERFACE_MODE_MII: | |
427 | value = 0x1; | |
428 | break; | |
429 | case PHY_INTERFACE_MODE_RMII: | |
430 | value = 0x0; | |
431 | break; | |
432 | default: | |
f75f14ec SS |
433 | netdev_warn(ndev, |
434 | "PHY interface mode was not setup. Set to MII.\n"); | |
5e7a76be NI |
435 | value = 0x1; |
436 | break; | |
437 | } | |
438 | ||
439 | sh_eth_write(ndev, value, RMII_MII); | |
440 | } | |
5e7a76be | 441 | |
8e994402 | 442 | static void sh_eth_set_duplex(struct net_device *ndev) |
65ac8851 YS |
443 | { |
444 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
65ac8851 YS |
445 | |
446 | if (mdp->duplex) /* Full */ | |
4a55530f | 447 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); |
65ac8851 | 448 | else /* Half */ |
4a55530f | 449 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); |
65ac8851 YS |
450 | } |
451 | ||
04b0ed2a | 452 | /* There is CPU dependent code */ |
589ebdef | 453 | static void sh_eth_set_rate_r8a777x(struct net_device *ndev) |
65ac8851 YS |
454 | { |
455 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
d0418bb7 | 456 | |
a3f109bd SS |
457 | switch (mdp->speed) { |
458 | case 10: /* 10BASE */ | |
459 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_ELB, ECMR); | |
460 | break; | |
461 | case 100:/* 100BASE */ | |
462 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_ELB, ECMR); | |
463 | break; | |
464 | default: | |
465 | break; | |
466 | } | |
467 | } | |
468 | ||
674853b2 | 469 | /* R8A7778/9 */ |
589ebdef | 470 | static struct sh_eth_cpu_data r8a777x_data = { |
a3f109bd | 471 | .set_duplex = sh_eth_set_duplex, |
589ebdef | 472 | .set_rate = sh_eth_set_rate_r8a777x, |
a3f109bd | 473 | |
a3153d8c SS |
474 | .register_type = SH_ETH_REG_FAST_RCAR, |
475 | ||
a3f109bd SS |
476 | .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, |
477 | .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, | |
478 | .eesipr_value = 0x01ff009f, | |
479 | ||
480 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
ca8c3585 SS |
481 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | |
482 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
483 | EESR_ECI, | |
d407bc02 | 484 | .fdr_value = 0x00000f0f, |
a3f109bd SS |
485 | |
486 | .apr = 1, | |
487 | .mpr = 1, | |
488 | .tpauser = 1, | |
489 | .hw_swap = 1, | |
490 | }; | |
a3f109bd | 491 | |
94a12b15 SS |
492 | /* R8A7790/1 */ |
493 | static struct sh_eth_cpu_data r8a779x_data = { | |
e18dbf7e SH |
494 | .set_duplex = sh_eth_set_duplex, |
495 | .set_rate = sh_eth_set_rate_r8a777x, | |
496 | ||
a3153d8c SS |
497 | .register_type = SH_ETH_REG_FAST_RCAR, |
498 | ||
e18dbf7e SH |
499 | .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, |
500 | .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, | |
501 | .eesipr_value = 0x01ff009f, | |
502 | ||
503 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
ba361cb3 LP |
504 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | |
505 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
506 | EESR_ECI, | |
d407bc02 | 507 | .fdr_value = 0x00000f0f, |
e18dbf7e | 508 | |
01fbd3f5 GU |
509 | .trscer_err_mask = DESC_I_RINT8, |
510 | ||
e18dbf7e SH |
511 | .apr = 1, |
512 | .mpr = 1, | |
513 | .tpauser = 1, | |
514 | .hw_swap = 1, | |
515 | .rmiimode = 1, | |
516 | }; | |
517 | ||
9c3beaab | 518 | static void sh_eth_set_rate_sh7724(struct net_device *ndev) |
a3f109bd SS |
519 | { |
520 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
65ac8851 YS |
521 | |
522 | switch (mdp->speed) { | |
523 | case 10: /* 10BASE */ | |
a3f109bd | 524 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_RTM, ECMR); |
65ac8851 YS |
525 | break; |
526 | case 100:/* 100BASE */ | |
a3f109bd | 527 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_RTM, ECMR); |
65ac8851 YS |
528 | break; |
529 | default: | |
530 | break; | |
531 | } | |
532 | } | |
533 | ||
534 | /* SH7724 */ | |
9c3beaab | 535 | static struct sh_eth_cpu_data sh7724_data = { |
65ac8851 | 536 | .set_duplex = sh_eth_set_duplex, |
9c3beaab | 537 | .set_rate = sh_eth_set_rate_sh7724, |
65ac8851 | 538 | |
a3153d8c SS |
539 | .register_type = SH_ETH_REG_FAST_SH4, |
540 | ||
65ac8851 YS |
541 | .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, |
542 | .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, | |
a80c3de7 | 543 | .eesipr_value = 0x01ff009f, |
65ac8851 YS |
544 | |
545 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
ca8c3585 SS |
546 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | |
547 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
548 | EESR_ECI, | |
65ac8851 YS |
549 | |
550 | .apr = 1, | |
551 | .mpr = 1, | |
552 | .tpauser = 1, | |
553 | .hw_swap = 1, | |
503914cf MD |
554 | .rpadir = 1, |
555 | .rpadir_value = 0x00020000, /* NET_IP_ALIGN assumed to be 2 */ | |
65ac8851 | 556 | }; |
5cee1d37 | 557 | |
24549e2a | 558 | static void sh_eth_set_rate_sh7757(struct net_device *ndev) |
f29a3d04 YS |
559 | { |
560 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
f29a3d04 YS |
561 | |
562 | switch (mdp->speed) { | |
563 | case 10: /* 10BASE */ | |
4a55530f | 564 | sh_eth_write(ndev, 0, RTRATE); |
f29a3d04 YS |
565 | break; |
566 | case 100:/* 100BASE */ | |
4a55530f | 567 | sh_eth_write(ndev, 1, RTRATE); |
f29a3d04 YS |
568 | break; |
569 | default: | |
570 | break; | |
571 | } | |
572 | } | |
573 | ||
574 | /* SH7757 */ | |
24549e2a SS |
575 | static struct sh_eth_cpu_data sh7757_data = { |
576 | .set_duplex = sh_eth_set_duplex, | |
577 | .set_rate = sh_eth_set_rate_sh7757, | |
f29a3d04 | 578 | |
a3153d8c SS |
579 | .register_type = SH_ETH_REG_FAST_SH4, |
580 | ||
f29a3d04 | 581 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, |
f29a3d04 YS |
582 | |
583 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
ca8c3585 SS |
584 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | |
585 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
586 | EESR_ECI, | |
f29a3d04 | 587 | |
5b3dfd13 | 588 | .irq_flags = IRQF_SHARED, |
f29a3d04 YS |
589 | .apr = 1, |
590 | .mpr = 1, | |
591 | .tpauser = 1, | |
592 | .hw_swap = 1, | |
593 | .no_ade = 1, | |
2e98e797 YS |
594 | .rpadir = 1, |
595 | .rpadir_value = 2 << 16, | |
6b4b4fea | 596 | .rtrate = 1, |
f29a3d04 | 597 | }; |
65ac8851 | 598 | |
e403d295 | 599 | #define SH_GIGA_ETH_BASE 0xfee00000UL |
8fcd4961 YS |
600 | #define GIGA_MALR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c8) |
601 | #define GIGA_MAHR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c0) | |
602 | static void sh_eth_chip_reset_giga(struct net_device *ndev) | |
603 | { | |
604 | int i; | |
0799c2d6 | 605 | u32 mahr[2], malr[2]; |
8fcd4961 YS |
606 | |
607 | /* save MAHR and MALR */ | |
608 | for (i = 0; i < 2; i++) { | |
ae70644d YS |
609 | malr[i] = ioread32((void *)GIGA_MALR(i)); |
610 | mahr[i] = ioread32((void *)GIGA_MAHR(i)); | |
8fcd4961 YS |
611 | } |
612 | ||
613 | /* reset device */ | |
ae70644d | 614 | iowrite32(ARSTR_ARSTR, (void *)(SH_GIGA_ETH_BASE + 0x1800)); |
8fcd4961 YS |
615 | mdelay(1); |
616 | ||
617 | /* restore MAHR and MALR */ | |
618 | for (i = 0; i < 2; i++) { | |
ae70644d YS |
619 | iowrite32(malr[i], (void *)GIGA_MALR(i)); |
620 | iowrite32(mahr[i], (void *)GIGA_MAHR(i)); | |
8fcd4961 YS |
621 | } |
622 | } | |
623 | ||
8fcd4961 YS |
624 | static void sh_eth_set_rate_giga(struct net_device *ndev) |
625 | { | |
626 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
627 | ||
628 | switch (mdp->speed) { | |
629 | case 10: /* 10BASE */ | |
630 | sh_eth_write(ndev, 0x00000000, GECMR); | |
631 | break; | |
632 | case 100:/* 100BASE */ | |
633 | sh_eth_write(ndev, 0x00000010, GECMR); | |
634 | break; | |
635 | case 1000: /* 1000BASE */ | |
636 | sh_eth_write(ndev, 0x00000020, GECMR); | |
637 | break; | |
638 | default: | |
639 | break; | |
640 | } | |
641 | } | |
642 | ||
643 | /* SH7757(GETHERC) */ | |
24549e2a | 644 | static struct sh_eth_cpu_data sh7757_data_giga = { |
8fcd4961 | 645 | .chip_reset = sh_eth_chip_reset_giga, |
04b0ed2a | 646 | .set_duplex = sh_eth_set_duplex, |
8fcd4961 YS |
647 | .set_rate = sh_eth_set_rate_giga, |
648 | ||
a3153d8c SS |
649 | .register_type = SH_ETH_REG_GIGABIT, |
650 | ||
8fcd4961 YS |
651 | .ecsr_value = ECSR_ICD | ECSR_MPD, |
652 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
653 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
654 | ||
655 | .tx_check = EESR_TC1 | EESR_FTC, | |
ca8c3585 SS |
656 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | |
657 | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | | |
658 | EESR_TDE | EESR_ECI, | |
8fcd4961 | 659 | .fdr_value = 0x0000072f, |
8fcd4961 | 660 | |
5b3dfd13 | 661 | .irq_flags = IRQF_SHARED, |
8fcd4961 YS |
662 | .apr = 1, |
663 | .mpr = 1, | |
664 | .tpauser = 1, | |
665 | .bculr = 1, | |
666 | .hw_swap = 1, | |
667 | .rpadir = 1, | |
668 | .rpadir_value = 2 << 16, | |
669 | .no_trimd = 1, | |
670 | .no_ade = 1, | |
3acbc971 | 671 | .tsu = 1, |
8fcd4961 YS |
672 | }; |
673 | ||
380af9e3 YS |
674 | static void sh_eth_chip_reset(struct net_device *ndev) |
675 | { | |
4986b996 YS |
676 | struct sh_eth_private *mdp = netdev_priv(ndev); |
677 | ||
380af9e3 | 678 | /* reset device */ |
4986b996 | 679 | sh_eth_tsu_write(mdp, ARSTR_ARSTR, ARSTR); |
380af9e3 YS |
680 | mdelay(1); |
681 | } | |
682 | ||
f5d12767 | 683 | static void sh_eth_set_rate_gether(struct net_device *ndev) |
380af9e3 YS |
684 | { |
685 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
380af9e3 YS |
686 | |
687 | switch (mdp->speed) { | |
688 | case 10: /* 10BASE */ | |
4a55530f | 689 | sh_eth_write(ndev, GECMR_10, GECMR); |
380af9e3 YS |
690 | break; |
691 | case 100:/* 100BASE */ | |
4a55530f | 692 | sh_eth_write(ndev, GECMR_100, GECMR); |
380af9e3 YS |
693 | break; |
694 | case 1000: /* 1000BASE */ | |
4a55530f | 695 | sh_eth_write(ndev, GECMR_1000, GECMR); |
380af9e3 YS |
696 | break; |
697 | default: | |
698 | break; | |
699 | } | |
700 | } | |
701 | ||
f5d12767 SS |
702 | /* SH7734 */ |
703 | static struct sh_eth_cpu_data sh7734_data = { | |
380af9e3 YS |
704 | .chip_reset = sh_eth_chip_reset, |
705 | .set_duplex = sh_eth_set_duplex, | |
f5d12767 SS |
706 | .set_rate = sh_eth_set_rate_gether, |
707 | ||
a3153d8c SS |
708 | .register_type = SH_ETH_REG_GIGABIT, |
709 | ||
f5d12767 SS |
710 | .ecsr_value = ECSR_ICD | ECSR_MPD, |
711 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
712 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
713 | ||
714 | .tx_check = EESR_TC1 | EESR_FTC, | |
ca8c3585 SS |
715 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | |
716 | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | | |
717 | EESR_TDE | EESR_ECI, | |
f5d12767 SS |
718 | |
719 | .apr = 1, | |
720 | .mpr = 1, | |
721 | .tpauser = 1, | |
722 | .bculr = 1, | |
723 | .hw_swap = 1, | |
724 | .no_trimd = 1, | |
725 | .no_ade = 1, | |
726 | .tsu = 1, | |
727 | .hw_crc = 1, | |
728 | .select_mii = 1, | |
729 | }; | |
730 | ||
731 | /* SH7763 */ | |
732 | static struct sh_eth_cpu_data sh7763_data = { | |
733 | .chip_reset = sh_eth_chip_reset, | |
734 | .set_duplex = sh_eth_set_duplex, | |
735 | .set_rate = sh_eth_set_rate_gether, | |
380af9e3 | 736 | |
a3153d8c SS |
737 | .register_type = SH_ETH_REG_GIGABIT, |
738 | ||
380af9e3 YS |
739 | .ecsr_value = ECSR_ICD | ECSR_MPD, |
740 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
741 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
742 | ||
743 | .tx_check = EESR_TC1 | EESR_FTC, | |
128296fc SS |
744 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | |
745 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
380af9e3 | 746 | EESR_ECI, |
380af9e3 YS |
747 | |
748 | .apr = 1, | |
749 | .mpr = 1, | |
750 | .tpauser = 1, | |
751 | .bculr = 1, | |
752 | .hw_swap = 1, | |
380af9e3 YS |
753 | .no_trimd = 1, |
754 | .no_ade = 1, | |
4986b996 | 755 | .tsu = 1, |
5b3dfd13 | 756 | .irq_flags = IRQF_SHARED, |
380af9e3 YS |
757 | }; |
758 | ||
e5c9b4cd | 759 | static void sh_eth_chip_reset_r8a7740(struct net_device *ndev) |
73a0d907 YS |
760 | { |
761 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
73a0d907 YS |
762 | |
763 | /* reset device */ | |
764 | sh_eth_tsu_write(mdp, ARSTR_ARSTR, ARSTR); | |
765 | mdelay(1); | |
766 | ||
5e7a76be | 767 | sh_eth_select_mii(ndev); |
73a0d907 YS |
768 | } |
769 | ||
73a0d907 | 770 | /* R8A7740 */ |
e5c9b4cd SS |
771 | static struct sh_eth_cpu_data r8a7740_data = { |
772 | .chip_reset = sh_eth_chip_reset_r8a7740, | |
73a0d907 | 773 | .set_duplex = sh_eth_set_duplex, |
e5c9b4cd | 774 | .set_rate = sh_eth_set_rate_gether, |
73a0d907 | 775 | |
a3153d8c SS |
776 | .register_type = SH_ETH_REG_GIGABIT, |
777 | ||
73a0d907 YS |
778 | .ecsr_value = ECSR_ICD | ECSR_MPD, |
779 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
780 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
781 | ||
782 | .tx_check = EESR_TC1 | EESR_FTC, | |
ca8c3585 SS |
783 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | |
784 | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | | |
785 | EESR_TDE | EESR_ECI, | |
cc23528d | 786 | .fdr_value = 0x0000070f, |
73a0d907 YS |
787 | |
788 | .apr = 1, | |
789 | .mpr = 1, | |
790 | .tpauser = 1, | |
791 | .bculr = 1, | |
792 | .hw_swap = 1, | |
cc23528d SH |
793 | .rpadir = 1, |
794 | .rpadir_value = 2 << 16, | |
73a0d907 YS |
795 | .no_trimd = 1, |
796 | .no_ade = 1, | |
797 | .tsu = 1, | |
5e7a76be | 798 | .select_mii = 1, |
ac8025a6 | 799 | .shift_rd0 = 1, |
73a0d907 YS |
800 | }; |
801 | ||
db893473 SH |
802 | /* R7S72100 */ |
803 | static struct sh_eth_cpu_data r7s72100_data = { | |
804 | .chip_reset = sh_eth_chip_reset, | |
805 | .set_duplex = sh_eth_set_duplex, | |
806 | ||
807 | .register_type = SH_ETH_REG_FAST_RZ, | |
808 | ||
809 | .ecsr_value = ECSR_ICD, | |
810 | .ecsipr_value = ECSIPR_ICDIP, | |
811 | .eesipr_value = 0xff7f009f, | |
812 | ||
813 | .tx_check = EESR_TC1 | EESR_FTC, | |
814 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | | |
815 | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | | |
816 | EESR_TDE | EESR_ECI, | |
817 | .fdr_value = 0x0000070f, | |
db893473 SH |
818 | |
819 | .no_psr = 1, | |
820 | .apr = 1, | |
821 | .mpr = 1, | |
822 | .tpauser = 1, | |
823 | .hw_swap = 1, | |
824 | .rpadir = 1, | |
825 | .rpadir_value = 2 << 16, | |
826 | .no_trimd = 1, | |
827 | .no_ade = 1, | |
828 | .hw_crc = 1, | |
829 | .tsu = 1, | |
830 | .shift_rd0 = 1, | |
831 | }; | |
832 | ||
c18a79ab | 833 | static struct sh_eth_cpu_data sh7619_data = { |
a3153d8c SS |
834 | .register_type = SH_ETH_REG_FAST_SH3_SH2, |
835 | ||
380af9e3 YS |
836 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, |
837 | ||
838 | .apr = 1, | |
839 | .mpr = 1, | |
840 | .tpauser = 1, | |
841 | .hw_swap = 1, | |
842 | }; | |
7bbe150d SS |
843 | |
844 | static struct sh_eth_cpu_data sh771x_data = { | |
a3153d8c SS |
845 | .register_type = SH_ETH_REG_FAST_SH3_SH2, |
846 | ||
380af9e3 | 847 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, |
4986b996 | 848 | .tsu = 1, |
380af9e3 | 849 | }; |
380af9e3 YS |
850 | |
851 | static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd) | |
852 | { | |
853 | if (!cd->ecsr_value) | |
854 | cd->ecsr_value = DEFAULT_ECSR_INIT; | |
855 | ||
856 | if (!cd->ecsipr_value) | |
857 | cd->ecsipr_value = DEFAULT_ECSIPR_INIT; | |
858 | ||
859 | if (!cd->fcftr_value) | |
128296fc | 860 | cd->fcftr_value = DEFAULT_FIFO_F_D_RFF | |
380af9e3 YS |
861 | DEFAULT_FIFO_F_D_RFD; |
862 | ||
863 | if (!cd->fdr_value) | |
864 | cd->fdr_value = DEFAULT_FDR_INIT; | |
865 | ||
380af9e3 YS |
866 | if (!cd->tx_check) |
867 | cd->tx_check = DEFAULT_TX_CHECK; | |
868 | ||
869 | if (!cd->eesr_err_check) | |
870 | cd->eesr_err_check = DEFAULT_EESR_ERR_CHECK; | |
b284fbe3 NI |
871 | |
872 | if (!cd->trscer_err_mask) | |
873 | cd->trscer_err_mask = DEFAULT_TRSCER_ERR_MASK; | |
380af9e3 YS |
874 | } |
875 | ||
5cee1d37 NI |
876 | static int sh_eth_check_reset(struct net_device *ndev) |
877 | { | |
878 | int ret = 0; | |
879 | int cnt = 100; | |
880 | ||
881 | while (cnt > 0) { | |
882 | if (!(sh_eth_read(ndev, EDMR) & 0x3)) | |
883 | break; | |
884 | mdelay(1); | |
885 | cnt--; | |
886 | } | |
9f8c4265 | 887 | if (cnt <= 0) { |
f75f14ec | 888 | netdev_err(ndev, "Device reset failed\n"); |
5cee1d37 NI |
889 | ret = -ETIMEDOUT; |
890 | } | |
891 | return ret; | |
380af9e3 | 892 | } |
dabdde9e NI |
893 | |
894 | static int sh_eth_reset(struct net_device *ndev) | |
895 | { | |
896 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
897 | int ret = 0; | |
898 | ||
db893473 | 899 | if (sh_eth_is_gether(mdp) || sh_eth_is_rz_fast_ether(mdp)) { |
dabdde9e NI |
900 | sh_eth_write(ndev, EDSR_ENALL, EDSR); |
901 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, | |
902 | EDMR); | |
903 | ||
904 | ret = sh_eth_check_reset(ndev); | |
905 | if (ret) | |
f738a13d | 906 | return ret; |
dabdde9e NI |
907 | |
908 | /* Table Init */ | |
909 | sh_eth_write(ndev, 0x0, TDLAR); | |
910 | sh_eth_write(ndev, 0x0, TDFAR); | |
911 | sh_eth_write(ndev, 0x0, TDFXR); | |
912 | sh_eth_write(ndev, 0x0, TDFFR); | |
913 | sh_eth_write(ndev, 0x0, RDLAR); | |
914 | sh_eth_write(ndev, 0x0, RDFAR); | |
915 | sh_eth_write(ndev, 0x0, RDFXR); | |
916 | sh_eth_write(ndev, 0x0, RDFFR); | |
917 | ||
918 | /* Reset HW CRC register */ | |
919 | if (mdp->cd->hw_crc) | |
920 | sh_eth_write(ndev, 0x0, CSMR); | |
921 | ||
922 | /* Select MII mode */ | |
923 | if (mdp->cd->select_mii) | |
924 | sh_eth_select_mii(ndev); | |
925 | } else { | |
926 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, | |
927 | EDMR); | |
928 | mdelay(3); | |
929 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, | |
930 | EDMR); | |
931 | } | |
932 | ||
dabdde9e NI |
933 | return ret; |
934 | } | |
380af9e3 | 935 | |
380af9e3 YS |
936 | static void sh_eth_set_receive_align(struct sk_buff *skb) |
937 | { | |
4d6a949c | 938 | uintptr_t reserve = (uintptr_t)skb->data & (SH_ETH_RX_ALIGN - 1); |
380af9e3 | 939 | |
380af9e3 | 940 | if (reserve) |
4d6a949c | 941 | skb_reserve(skb, SH_ETH_RX_ALIGN - reserve); |
380af9e3 | 942 | } |
380af9e3 YS |
943 | |
944 | ||
71557a37 YS |
945 | /* CPU <-> EDMAC endian convert */ |
946 | static inline __u32 cpu_to_edmac(struct sh_eth_private *mdp, u32 x) | |
947 | { | |
948 | switch (mdp->edmac_endian) { | |
949 | case EDMAC_LITTLE_ENDIAN: | |
950 | return cpu_to_le32(x); | |
951 | case EDMAC_BIG_ENDIAN: | |
952 | return cpu_to_be32(x); | |
953 | } | |
954 | return x; | |
955 | } | |
956 | ||
957 | static inline __u32 edmac_to_cpu(struct sh_eth_private *mdp, u32 x) | |
958 | { | |
959 | switch (mdp->edmac_endian) { | |
960 | case EDMAC_LITTLE_ENDIAN: | |
961 | return le32_to_cpu(x); | |
962 | case EDMAC_BIG_ENDIAN: | |
963 | return be32_to_cpu(x); | |
964 | } | |
965 | return x; | |
966 | } | |
967 | ||
128296fc | 968 | /* Program the hardware MAC address from dev->dev_addr. */ |
86a74ff2 NI |
969 | static void update_mac_address(struct net_device *ndev) |
970 | { | |
4a55530f | 971 | sh_eth_write(ndev, |
128296fc SS |
972 | (ndev->dev_addr[0] << 24) | (ndev->dev_addr[1] << 16) | |
973 | (ndev->dev_addr[2] << 8) | (ndev->dev_addr[3]), MAHR); | |
4a55530f | 974 | sh_eth_write(ndev, |
128296fc | 975 | (ndev->dev_addr[4] << 8) | (ndev->dev_addr[5]), MALR); |
86a74ff2 NI |
976 | } |
977 | ||
128296fc | 978 | /* Get MAC address from SuperH MAC address register |
86a74ff2 NI |
979 | * |
980 | * SuperH's Ethernet device doesn't have 'ROM' to MAC address. | |
981 | * This driver get MAC address that use by bootloader(U-boot or sh-ipl+g). | |
982 | * When you want use this device, you must set MAC address in bootloader. | |
983 | * | |
984 | */ | |
748031f9 | 985 | static void read_mac_address(struct net_device *ndev, unsigned char *mac) |
86a74ff2 | 986 | { |
748031f9 | 987 | if (mac[0] || mac[1] || mac[2] || mac[3] || mac[4] || mac[5]) { |
d458cdf7 | 988 | memcpy(ndev->dev_addr, mac, ETH_ALEN); |
748031f9 | 989 | } else { |
4a55530f YS |
990 | ndev->dev_addr[0] = (sh_eth_read(ndev, MAHR) >> 24); |
991 | ndev->dev_addr[1] = (sh_eth_read(ndev, MAHR) >> 16) & 0xFF; | |
992 | ndev->dev_addr[2] = (sh_eth_read(ndev, MAHR) >> 8) & 0xFF; | |
993 | ndev->dev_addr[3] = (sh_eth_read(ndev, MAHR) & 0xFF); | |
994 | ndev->dev_addr[4] = (sh_eth_read(ndev, MALR) >> 8) & 0xFF; | |
995 | ndev->dev_addr[5] = (sh_eth_read(ndev, MALR) & 0xFF); | |
748031f9 | 996 | } |
86a74ff2 NI |
997 | } |
998 | ||
0799c2d6 | 999 | static u32 sh_eth_get_edtrr_trns(struct sh_eth_private *mdp) |
c5ed5368 | 1000 | { |
db893473 | 1001 | if (sh_eth_is_gether(mdp) || sh_eth_is_rz_fast_ether(mdp)) |
c5ed5368 YS |
1002 | return EDTRR_TRNS_GETHER; |
1003 | else | |
1004 | return EDTRR_TRNS_ETHER; | |
1005 | } | |
1006 | ||
86a74ff2 | 1007 | struct bb_info { |
ae70644d | 1008 | void (*set_gate)(void *addr); |
86a74ff2 | 1009 | struct mdiobb_ctrl ctrl; |
ae70644d | 1010 | void *addr; |
86a74ff2 NI |
1011 | u32 mmd_msk;/* MMD */ |
1012 | u32 mdo_msk; | |
1013 | u32 mdi_msk; | |
1014 | u32 mdc_msk; | |
1015 | }; | |
1016 | ||
1017 | /* PHY bit set */ | |
ae70644d | 1018 | static void bb_set(void *addr, u32 msk) |
86a74ff2 | 1019 | { |
ae70644d | 1020 | iowrite32(ioread32(addr) | msk, addr); |
86a74ff2 NI |
1021 | } |
1022 | ||
1023 | /* PHY bit clear */ | |
ae70644d | 1024 | static void bb_clr(void *addr, u32 msk) |
86a74ff2 | 1025 | { |
ae70644d | 1026 | iowrite32((ioread32(addr) & ~msk), addr); |
86a74ff2 NI |
1027 | } |
1028 | ||
1029 | /* PHY bit read */ | |
ae70644d | 1030 | static int bb_read(void *addr, u32 msk) |
86a74ff2 | 1031 | { |
ae70644d | 1032 | return (ioread32(addr) & msk) != 0; |
86a74ff2 NI |
1033 | } |
1034 | ||
1035 | /* Data I/O pin control */ | |
1036 | static void sh_mmd_ctrl(struct mdiobb_ctrl *ctrl, int bit) | |
1037 | { | |
1038 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
b3017e6a YS |
1039 | |
1040 | if (bitbang->set_gate) | |
1041 | bitbang->set_gate(bitbang->addr); | |
1042 | ||
86a74ff2 NI |
1043 | if (bit) |
1044 | bb_set(bitbang->addr, bitbang->mmd_msk); | |
1045 | else | |
1046 | bb_clr(bitbang->addr, bitbang->mmd_msk); | |
1047 | } | |
1048 | ||
1049 | /* Set bit data*/ | |
1050 | static void sh_set_mdio(struct mdiobb_ctrl *ctrl, int bit) | |
1051 | { | |
1052 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
1053 | ||
b3017e6a YS |
1054 | if (bitbang->set_gate) |
1055 | bitbang->set_gate(bitbang->addr); | |
1056 | ||
86a74ff2 NI |
1057 | if (bit) |
1058 | bb_set(bitbang->addr, bitbang->mdo_msk); | |
1059 | else | |
1060 | bb_clr(bitbang->addr, bitbang->mdo_msk); | |
1061 | } | |
1062 | ||
1063 | /* Get bit data*/ | |
1064 | static int sh_get_mdio(struct mdiobb_ctrl *ctrl) | |
1065 | { | |
1066 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
b3017e6a YS |
1067 | |
1068 | if (bitbang->set_gate) | |
1069 | bitbang->set_gate(bitbang->addr); | |
1070 | ||
86a74ff2 NI |
1071 | return bb_read(bitbang->addr, bitbang->mdi_msk); |
1072 | } | |
1073 | ||
1074 | /* MDC pin control */ | |
1075 | static void sh_mdc_ctrl(struct mdiobb_ctrl *ctrl, int bit) | |
1076 | { | |
1077 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
1078 | ||
b3017e6a YS |
1079 | if (bitbang->set_gate) |
1080 | bitbang->set_gate(bitbang->addr); | |
1081 | ||
86a74ff2 NI |
1082 | if (bit) |
1083 | bb_set(bitbang->addr, bitbang->mdc_msk); | |
1084 | else | |
1085 | bb_clr(bitbang->addr, bitbang->mdc_msk); | |
1086 | } | |
1087 | ||
1088 | /* mdio bus control struct */ | |
1089 | static struct mdiobb_ops bb_ops = { | |
1090 | .owner = THIS_MODULE, | |
1091 | .set_mdc = sh_mdc_ctrl, | |
1092 | .set_mdio_dir = sh_mmd_ctrl, | |
1093 | .set_mdio_data = sh_set_mdio, | |
1094 | .get_mdio_data = sh_get_mdio, | |
1095 | }; | |
1096 | ||
86a74ff2 NI |
1097 | /* free skb and descriptor buffer */ |
1098 | static void sh_eth_ring_free(struct net_device *ndev) | |
1099 | { | |
1100 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1101 | int i; | |
1102 | ||
1103 | /* Free Rx skb ringbuffer */ | |
1104 | if (mdp->rx_skbuff) { | |
179d80af SS |
1105 | for (i = 0; i < mdp->num_rx_ring; i++) |
1106 | dev_kfree_skb(mdp->rx_skbuff[i]); | |
86a74ff2 NI |
1107 | } |
1108 | kfree(mdp->rx_skbuff); | |
91c77550 | 1109 | mdp->rx_skbuff = NULL; |
86a74ff2 NI |
1110 | |
1111 | /* Free Tx skb ringbuffer */ | |
1112 | if (mdp->tx_skbuff) { | |
179d80af SS |
1113 | for (i = 0; i < mdp->num_tx_ring; i++) |
1114 | dev_kfree_skb(mdp->tx_skbuff[i]); | |
86a74ff2 NI |
1115 | } |
1116 | kfree(mdp->tx_skbuff); | |
91c77550 | 1117 | mdp->tx_skbuff = NULL; |
86a74ff2 NI |
1118 | } |
1119 | ||
1120 | /* format skb and descriptor buffer */ | |
1121 | static void sh_eth_ring_format(struct net_device *ndev) | |
1122 | { | |
1123 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1124 | int i; | |
1125 | struct sk_buff *skb; | |
1126 | struct sh_eth_rxdesc *rxdesc = NULL; | |
1127 | struct sh_eth_txdesc *txdesc = NULL; | |
525b8075 YS |
1128 | int rx_ringsize = sizeof(*rxdesc) * mdp->num_rx_ring; |
1129 | int tx_ringsize = sizeof(*txdesc) * mdp->num_tx_ring; | |
4d6a949c | 1130 | int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN - 1; |
52b9fa36 | 1131 | dma_addr_t dma_addr; |
86a74ff2 | 1132 | |
128296fc SS |
1133 | mdp->cur_rx = 0; |
1134 | mdp->cur_tx = 0; | |
1135 | mdp->dirty_rx = 0; | |
1136 | mdp->dirty_tx = 0; | |
86a74ff2 NI |
1137 | |
1138 | memset(mdp->rx_ring, 0, rx_ringsize); | |
1139 | ||
1140 | /* build Rx ring buffer */ | |
525b8075 | 1141 | for (i = 0; i < mdp->num_rx_ring; i++) { |
86a74ff2 NI |
1142 | /* skb */ |
1143 | mdp->rx_skbuff[i] = NULL; | |
4d6a949c | 1144 | skb = netdev_alloc_skb(ndev, skbuff_size); |
86a74ff2 NI |
1145 | if (skb == NULL) |
1146 | break; | |
380af9e3 YS |
1147 | sh_eth_set_receive_align(skb); |
1148 | ||
86a74ff2 NI |
1149 | /* RX descriptor */ |
1150 | rxdesc = &mdp->rx_ring[i]; | |
4d6a949c MK |
1151 | /* The size of the buffer is a multiple of 16 bytes. */ |
1152 | rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16); | |
52b9fa36 BH |
1153 | dma_addr = dma_map_single(&ndev->dev, skb->data, |
1154 | rxdesc->buffer_length, | |
1155 | DMA_FROM_DEVICE); | |
1156 | if (dma_mapping_error(&ndev->dev, dma_addr)) { | |
1157 | kfree_skb(skb); | |
1158 | break; | |
1159 | } | |
1160 | mdp->rx_skbuff[i] = skb; | |
1161 | rxdesc->addr = dma_addr; | |
71557a37 | 1162 | rxdesc->status = cpu_to_edmac(mdp, RD_RACT | RD_RFP); |
86a74ff2 | 1163 | |
b0ca2a21 NI |
1164 | /* Rx descriptor address set */ |
1165 | if (i == 0) { | |
4a55530f | 1166 | sh_eth_write(ndev, mdp->rx_desc_dma, RDLAR); |
db893473 SH |
1167 | if (sh_eth_is_gether(mdp) || |
1168 | sh_eth_is_rz_fast_ether(mdp)) | |
c5ed5368 | 1169 | sh_eth_write(ndev, mdp->rx_desc_dma, RDFAR); |
b0ca2a21 | 1170 | } |
86a74ff2 NI |
1171 | } |
1172 | ||
525b8075 | 1173 | mdp->dirty_rx = (u32) (i - mdp->num_rx_ring); |
86a74ff2 NI |
1174 | |
1175 | /* Mark the last entry as wrapping the ring. */ | |
71557a37 | 1176 | rxdesc->status |= cpu_to_edmac(mdp, RD_RDEL); |
86a74ff2 NI |
1177 | |
1178 | memset(mdp->tx_ring, 0, tx_ringsize); | |
1179 | ||
1180 | /* build Tx ring buffer */ | |
525b8075 | 1181 | for (i = 0; i < mdp->num_tx_ring; i++) { |
86a74ff2 NI |
1182 | mdp->tx_skbuff[i] = NULL; |
1183 | txdesc = &mdp->tx_ring[i]; | |
71557a37 | 1184 | txdesc->status = cpu_to_edmac(mdp, TD_TFP); |
86a74ff2 | 1185 | txdesc->buffer_length = 0; |
b0ca2a21 | 1186 | if (i == 0) { |
71557a37 | 1187 | /* Tx descriptor address set */ |
4a55530f | 1188 | sh_eth_write(ndev, mdp->tx_desc_dma, TDLAR); |
db893473 SH |
1189 | if (sh_eth_is_gether(mdp) || |
1190 | sh_eth_is_rz_fast_ether(mdp)) | |
c5ed5368 | 1191 | sh_eth_write(ndev, mdp->tx_desc_dma, TDFAR); |
b0ca2a21 | 1192 | } |
86a74ff2 NI |
1193 | } |
1194 | ||
71557a37 | 1195 | txdesc->status |= cpu_to_edmac(mdp, TD_TDLE); |
86a74ff2 NI |
1196 | } |
1197 | ||
1198 | /* Get skb and descriptor buffer */ | |
1199 | static int sh_eth_ring_init(struct net_device *ndev) | |
1200 | { | |
1201 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1202 | int rx_ringsize, tx_ringsize, ret = 0; | |
1203 | ||
128296fc | 1204 | /* +26 gets the maximum ethernet encapsulation, +7 & ~7 because the |
86a74ff2 NI |
1205 | * card needs room to do 8 byte alignment, +2 so we can reserve |
1206 | * the first 2 bytes, and +16 gets room for the status word from the | |
1207 | * card. | |
1208 | */ | |
1209 | mdp->rx_buf_sz = (ndev->mtu <= 1492 ? PKT_BUF_SZ : | |
1210 | (((ndev->mtu + 26 + 7) & ~7) + 2 + 16)); | |
503914cf MD |
1211 | if (mdp->cd->rpadir) |
1212 | mdp->rx_buf_sz += NET_IP_ALIGN; | |
86a74ff2 NI |
1213 | |
1214 | /* Allocate RX and TX skb rings */ | |
b2adaca9 JP |
1215 | mdp->rx_skbuff = kmalloc_array(mdp->num_rx_ring, |
1216 | sizeof(*mdp->rx_skbuff), GFP_KERNEL); | |
86a74ff2 | 1217 | if (!mdp->rx_skbuff) { |
86a74ff2 NI |
1218 | ret = -ENOMEM; |
1219 | return ret; | |
1220 | } | |
1221 | ||
b2adaca9 JP |
1222 | mdp->tx_skbuff = kmalloc_array(mdp->num_tx_ring, |
1223 | sizeof(*mdp->tx_skbuff), GFP_KERNEL); | |
86a74ff2 | 1224 | if (!mdp->tx_skbuff) { |
86a74ff2 NI |
1225 | ret = -ENOMEM; |
1226 | goto skb_ring_free; | |
1227 | } | |
1228 | ||
1229 | /* Allocate all Rx descriptors. */ | |
525b8075 | 1230 | rx_ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring; |
86a74ff2 | 1231 | mdp->rx_ring = dma_alloc_coherent(NULL, rx_ringsize, &mdp->rx_desc_dma, |
d0320f75 | 1232 | GFP_KERNEL); |
86a74ff2 | 1233 | if (!mdp->rx_ring) { |
86a74ff2 NI |
1234 | ret = -ENOMEM; |
1235 | goto desc_ring_free; | |
1236 | } | |
1237 | ||
1238 | mdp->dirty_rx = 0; | |
1239 | ||
1240 | /* Allocate all Tx descriptors. */ | |
525b8075 | 1241 | tx_ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring; |
86a74ff2 | 1242 | mdp->tx_ring = dma_alloc_coherent(NULL, tx_ringsize, &mdp->tx_desc_dma, |
d0320f75 | 1243 | GFP_KERNEL); |
86a74ff2 | 1244 | if (!mdp->tx_ring) { |
86a74ff2 NI |
1245 | ret = -ENOMEM; |
1246 | goto desc_ring_free; | |
1247 | } | |
1248 | return ret; | |
1249 | ||
1250 | desc_ring_free: | |
1251 | /* free DMA buffer */ | |
1252 | dma_free_coherent(NULL, rx_ringsize, mdp->rx_ring, mdp->rx_desc_dma); | |
1253 | ||
1254 | skb_ring_free: | |
1255 | /* Free Rx and Tx skb ring buffer */ | |
1256 | sh_eth_ring_free(ndev); | |
91c77550 YS |
1257 | mdp->tx_ring = NULL; |
1258 | mdp->rx_ring = NULL; | |
86a74ff2 NI |
1259 | |
1260 | return ret; | |
1261 | } | |
1262 | ||
91c77550 YS |
1263 | static void sh_eth_free_dma_buffer(struct sh_eth_private *mdp) |
1264 | { | |
1265 | int ringsize; | |
1266 | ||
1267 | if (mdp->rx_ring) { | |
525b8075 | 1268 | ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring; |
91c77550 YS |
1269 | dma_free_coherent(NULL, ringsize, mdp->rx_ring, |
1270 | mdp->rx_desc_dma); | |
1271 | mdp->rx_ring = NULL; | |
1272 | } | |
1273 | ||
1274 | if (mdp->tx_ring) { | |
525b8075 | 1275 | ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring; |
91c77550 YS |
1276 | dma_free_coherent(NULL, ringsize, mdp->tx_ring, |
1277 | mdp->tx_desc_dma); | |
1278 | mdp->tx_ring = NULL; | |
1279 | } | |
1280 | } | |
1281 | ||
525b8075 | 1282 | static int sh_eth_dev_init(struct net_device *ndev, bool start) |
86a74ff2 NI |
1283 | { |
1284 | int ret = 0; | |
1285 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
1286 | u32 val; |
1287 | ||
1288 | /* Soft Reset */ | |
5cee1d37 NI |
1289 | ret = sh_eth_reset(ndev); |
1290 | if (ret) | |
f738a13d | 1291 | return ret; |
86a74ff2 | 1292 | |
55754f19 SH |
1293 | if (mdp->cd->rmiimode) |
1294 | sh_eth_write(ndev, 0x1, RMIIMODE); | |
1295 | ||
b0ca2a21 NI |
1296 | /* Descriptor format */ |
1297 | sh_eth_ring_format(ndev); | |
380af9e3 | 1298 | if (mdp->cd->rpadir) |
4a55530f | 1299 | sh_eth_write(ndev, mdp->cd->rpadir_value, RPADIR); |
86a74ff2 NI |
1300 | |
1301 | /* all sh_eth int mask */ | |
4a55530f | 1302 | sh_eth_write(ndev, 0, EESIPR); |
86a74ff2 | 1303 | |
10b9194f | 1304 | #if defined(__LITTLE_ENDIAN) |
380af9e3 | 1305 | if (mdp->cd->hw_swap) |
4a55530f | 1306 | sh_eth_write(ndev, EDMR_EL, EDMR); |
380af9e3 | 1307 | else |
b0ca2a21 | 1308 | #endif |
4a55530f | 1309 | sh_eth_write(ndev, 0, EDMR); |
86a74ff2 | 1310 | |
b0ca2a21 | 1311 | /* FIFO size set */ |
4a55530f YS |
1312 | sh_eth_write(ndev, mdp->cd->fdr_value, FDR); |
1313 | sh_eth_write(ndev, 0, TFTR); | |
86a74ff2 | 1314 | |
530aa2d0 BD |
1315 | /* Frame recv control (enable multiple-packets per rx irq) */ |
1316 | sh_eth_write(ndev, RMCR_RNC, RMCR); | |
86a74ff2 | 1317 | |
b284fbe3 | 1318 | sh_eth_write(ndev, mdp->cd->trscer_err_mask, TRSCER); |
86a74ff2 | 1319 | |
380af9e3 | 1320 | if (mdp->cd->bculr) |
4a55530f | 1321 | sh_eth_write(ndev, 0x800, BCULR); /* Burst sycle set */ |
b0ca2a21 | 1322 | |
4a55530f | 1323 | sh_eth_write(ndev, mdp->cd->fcftr_value, FCFTR); |
86a74ff2 | 1324 | |
380af9e3 | 1325 | if (!mdp->cd->no_trimd) |
4a55530f | 1326 | sh_eth_write(ndev, 0, TRIMD); |
86a74ff2 | 1327 | |
b0ca2a21 | 1328 | /* Recv frame limit set register */ |
fdb37a7f YS |
1329 | sh_eth_write(ndev, ndev->mtu + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN, |
1330 | RFLR); | |
86a74ff2 | 1331 | |
4a55530f | 1332 | sh_eth_write(ndev, sh_eth_read(ndev, EESR), EESR); |
283e38db BH |
1333 | if (start) { |
1334 | mdp->irq_enabled = true; | |
525b8075 | 1335 | sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); |
283e38db | 1336 | } |
86a74ff2 NI |
1337 | |
1338 | /* PAUSE Prohibition */ | |
4a55530f | 1339 | val = (sh_eth_read(ndev, ECMR) & ECMR_DM) | |
86a74ff2 NI |
1340 | ECMR_ZPF | (mdp->duplex ? ECMR_DM : 0) | ECMR_TE | ECMR_RE; |
1341 | ||
4a55530f | 1342 | sh_eth_write(ndev, val, ECMR); |
b0ca2a21 | 1343 | |
380af9e3 YS |
1344 | if (mdp->cd->set_rate) |
1345 | mdp->cd->set_rate(ndev); | |
1346 | ||
b0ca2a21 | 1347 | /* E-MAC Status Register clear */ |
4a55530f | 1348 | sh_eth_write(ndev, mdp->cd->ecsr_value, ECSR); |
b0ca2a21 NI |
1349 | |
1350 | /* E-MAC Interrupt Enable register */ | |
525b8075 YS |
1351 | if (start) |
1352 | sh_eth_write(ndev, mdp->cd->ecsipr_value, ECSIPR); | |
86a74ff2 NI |
1353 | |
1354 | /* Set MAC address */ | |
1355 | update_mac_address(ndev); | |
1356 | ||
1357 | /* mask reset */ | |
380af9e3 | 1358 | if (mdp->cd->apr) |
4a55530f | 1359 | sh_eth_write(ndev, APR_AP, APR); |
380af9e3 | 1360 | if (mdp->cd->mpr) |
4a55530f | 1361 | sh_eth_write(ndev, MPR_MP, MPR); |
380af9e3 | 1362 | if (mdp->cd->tpauser) |
4a55530f | 1363 | sh_eth_write(ndev, TPAUSER_UNLIMITED, TPAUSER); |
b0ca2a21 | 1364 | |
525b8075 YS |
1365 | if (start) { |
1366 | /* Setting the Rx mode will start the Rx process. */ | |
1367 | sh_eth_write(ndev, EDRRR_R, EDRRR); | |
86a74ff2 | 1368 | |
525b8075 YS |
1369 | netif_start_queue(ndev); |
1370 | } | |
86a74ff2 NI |
1371 | |
1372 | return ret; | |
1373 | } | |
1374 | ||
740c7f31 BH |
1375 | static void sh_eth_dev_exit(struct net_device *ndev) |
1376 | { | |
1377 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1378 | int i; | |
1379 | ||
1380 | /* Deactivate all TX descriptors, so DMA should stop at next | |
1381 | * packet boundary if it's currently running | |
1382 | */ | |
1383 | for (i = 0; i < mdp->num_tx_ring; i++) | |
1384 | mdp->tx_ring[i].status &= ~cpu_to_edmac(mdp, TD_TACT); | |
1385 | ||
1386 | /* Disable TX FIFO egress to MAC */ | |
1387 | sh_eth_rcv_snd_disable(ndev); | |
1388 | ||
1389 | /* Stop RX DMA at next packet boundary */ | |
1390 | sh_eth_write(ndev, 0, EDRRR); | |
1391 | ||
1392 | /* Aside from TX DMA, we can't tell when the hardware is | |
1393 | * really stopped, so we need to reset to make sure. | |
1394 | * Before doing that, wait for long enough to *probably* | |
1395 | * finish transmitting the last packet and poll stats. | |
1396 | */ | |
1397 | msleep(2); /* max frame time at 10 Mbps < 1250 us */ | |
1398 | sh_eth_get_stats(ndev); | |
1399 | sh_eth_reset(ndev); | |
a14c7d15 GU |
1400 | |
1401 | /* Set MAC address again */ | |
1402 | update_mac_address(ndev); | |
740c7f31 BH |
1403 | } |
1404 | ||
86a74ff2 NI |
1405 | /* free Tx skb function */ |
1406 | static int sh_eth_txfree(struct net_device *ndev) | |
1407 | { | |
1408 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1409 | struct sh_eth_txdesc *txdesc; | |
128296fc | 1410 | int free_num = 0; |
86a74ff2 NI |
1411 | int entry = 0; |
1412 | ||
1413 | for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) { | |
525b8075 | 1414 | entry = mdp->dirty_tx % mdp->num_tx_ring; |
86a74ff2 | 1415 | txdesc = &mdp->tx_ring[entry]; |
71557a37 | 1416 | if (txdesc->status & cpu_to_edmac(mdp, TD_TACT)) |
86a74ff2 | 1417 | break; |
7d7355f5 BH |
1418 | /* TACT bit must be checked before all the following reads */ |
1419 | rmb(); | |
e5fd13f4 BH |
1420 | netif_info(mdp, tx_done, ndev, |
1421 | "tx entry %d status 0x%08x\n", | |
1422 | entry, edmac_to_cpu(mdp, txdesc->status)); | |
86a74ff2 NI |
1423 | /* Free the original skb. */ |
1424 | if (mdp->tx_skbuff[entry]) { | |
31fcb99d YS |
1425 | dma_unmap_single(&ndev->dev, txdesc->addr, |
1426 | txdesc->buffer_length, DMA_TO_DEVICE); | |
86a74ff2 NI |
1427 | dev_kfree_skb_irq(mdp->tx_skbuff[entry]); |
1428 | mdp->tx_skbuff[entry] = NULL; | |
128296fc | 1429 | free_num++; |
86a74ff2 | 1430 | } |
71557a37 | 1431 | txdesc->status = cpu_to_edmac(mdp, TD_TFP); |
525b8075 | 1432 | if (entry >= mdp->num_tx_ring - 1) |
71557a37 | 1433 | txdesc->status |= cpu_to_edmac(mdp, TD_TDLE); |
86a74ff2 | 1434 | |
bb7d92e3 ED |
1435 | ndev->stats.tx_packets++; |
1436 | ndev->stats.tx_bytes += txdesc->buffer_length; | |
86a74ff2 | 1437 | } |
128296fc | 1438 | return free_num; |
86a74ff2 NI |
1439 | } |
1440 | ||
1441 | /* Packet receive function */ | |
3719109d | 1442 | static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota) |
86a74ff2 NI |
1443 | { |
1444 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1445 | struct sh_eth_rxdesc *rxdesc; | |
1446 | ||
525b8075 YS |
1447 | int entry = mdp->cur_rx % mdp->num_rx_ring; |
1448 | int boguscnt = (mdp->dirty_rx + mdp->num_rx_ring) - mdp->cur_rx; | |
319cd520 | 1449 | int limit; |
86a74ff2 NI |
1450 | struct sk_buff *skb; |
1451 | u16 pkt_len = 0; | |
380af9e3 | 1452 | u32 desc_status; |
4d6a949c | 1453 | int skbuff_size = mdp->rx_buf_sz + SH_ETH_RX_ALIGN - 1; |
52b9fa36 | 1454 | dma_addr_t dma_addr; |
86a74ff2 | 1455 | |
319cd520 MK |
1456 | boguscnt = min(boguscnt, *quota); |
1457 | limit = boguscnt; | |
86a74ff2 | 1458 | rxdesc = &mdp->rx_ring[entry]; |
71557a37 | 1459 | while (!(rxdesc->status & cpu_to_edmac(mdp, RD_RACT))) { |
7d7355f5 BH |
1460 | /* RACT bit must be checked before all the following reads */ |
1461 | rmb(); | |
71557a37 | 1462 | desc_status = edmac_to_cpu(mdp, rxdesc->status); |
86a74ff2 NI |
1463 | pkt_len = rxdesc->frame_length; |
1464 | ||
1465 | if (--boguscnt < 0) | |
1466 | break; | |
1467 | ||
e5fd13f4 BH |
1468 | netif_info(mdp, rx_status, ndev, |
1469 | "rx entry %d status 0x%08x len %d\n", | |
1470 | entry, desc_status, pkt_len); | |
1471 | ||
86a74ff2 | 1472 | if (!(desc_status & RDFEND)) |
bb7d92e3 | 1473 | ndev->stats.rx_length_errors++; |
86a74ff2 | 1474 | |
128296fc | 1475 | /* In case of almost all GETHER/ETHERs, the Receive Frame State |
dd019897 | 1476 | * (RFS) bits in the Receive Descriptor 0 are from bit 9 to |
9b4a6364 BH |
1477 | * bit 0. However, in case of the R8A7740 and R7S72100 |
1478 | * the RFS bits are from bit 25 to bit 16. So, the | |
db893473 | 1479 | * driver needs right shifting by 16. |
dd019897 | 1480 | */ |
ac8025a6 SS |
1481 | if (mdp->cd->shift_rd0) |
1482 | desc_status >>= 16; | |
dd019897 | 1483 | |
86a74ff2 NI |
1484 | if (desc_status & (RD_RFS1 | RD_RFS2 | RD_RFS3 | RD_RFS4 | |
1485 | RD_RFS5 | RD_RFS6 | RD_RFS10)) { | |
bb7d92e3 | 1486 | ndev->stats.rx_errors++; |
86a74ff2 | 1487 | if (desc_status & RD_RFS1) |
bb7d92e3 | 1488 | ndev->stats.rx_crc_errors++; |
86a74ff2 | 1489 | if (desc_status & RD_RFS2) |
bb7d92e3 | 1490 | ndev->stats.rx_frame_errors++; |
86a74ff2 | 1491 | if (desc_status & RD_RFS3) |
bb7d92e3 | 1492 | ndev->stats.rx_length_errors++; |
86a74ff2 | 1493 | if (desc_status & RD_RFS4) |
bb7d92e3 | 1494 | ndev->stats.rx_length_errors++; |
86a74ff2 | 1495 | if (desc_status & RD_RFS6) |
bb7d92e3 | 1496 | ndev->stats.rx_missed_errors++; |
86a74ff2 | 1497 | if (desc_status & RD_RFS10) |
bb7d92e3 | 1498 | ndev->stats.rx_over_errors++; |
86a74ff2 | 1499 | } else { |
380af9e3 YS |
1500 | if (!mdp->cd->hw_swap) |
1501 | sh_eth_soft_swap( | |
1502 | phys_to_virt(ALIGN(rxdesc->addr, 4)), | |
1503 | pkt_len + 2); | |
86a74ff2 NI |
1504 | skb = mdp->rx_skbuff[entry]; |
1505 | mdp->rx_skbuff[entry] = NULL; | |
503914cf MD |
1506 | if (mdp->cd->rpadir) |
1507 | skb_reserve(skb, NET_IP_ALIGN); | |
52b9fa36 BH |
1508 | dma_unmap_single(&ndev->dev, rxdesc->addr, |
1509 | ALIGN(mdp->rx_buf_sz, 16), | |
1510 | DMA_FROM_DEVICE); | |
86a74ff2 NI |
1511 | skb_put(skb, pkt_len); |
1512 | skb->protocol = eth_type_trans(skb, ndev); | |
a8e9fd0f | 1513 | netif_receive_skb(skb); |
bb7d92e3 ED |
1514 | ndev->stats.rx_packets++; |
1515 | ndev->stats.rx_bytes += pkt_len; | |
25b77ad7 BH |
1516 | if (desc_status & RD_RFS8) |
1517 | ndev->stats.multicast++; | |
86a74ff2 | 1518 | } |
525b8075 | 1519 | entry = (++mdp->cur_rx) % mdp->num_rx_ring; |
862df497 | 1520 | rxdesc = &mdp->rx_ring[entry]; |
86a74ff2 NI |
1521 | } |
1522 | ||
1523 | /* Refill the Rx ring buffers. */ | |
1524 | for (; mdp->cur_rx - mdp->dirty_rx > 0; mdp->dirty_rx++) { | |
525b8075 | 1525 | entry = mdp->dirty_rx % mdp->num_rx_ring; |
86a74ff2 | 1526 | rxdesc = &mdp->rx_ring[entry]; |
b0ca2a21 | 1527 | /* The size of the buffer is 16 byte boundary. */ |
0029d64a | 1528 | rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16); |
b0ca2a21 | 1529 | |
86a74ff2 | 1530 | if (mdp->rx_skbuff[entry] == NULL) { |
4d6a949c | 1531 | skb = netdev_alloc_skb(ndev, skbuff_size); |
86a74ff2 NI |
1532 | if (skb == NULL) |
1533 | break; /* Better luck next round. */ | |
380af9e3 | 1534 | sh_eth_set_receive_align(skb); |
52b9fa36 BH |
1535 | dma_addr = dma_map_single(&ndev->dev, skb->data, |
1536 | rxdesc->buffer_length, | |
1537 | DMA_FROM_DEVICE); | |
1538 | if (dma_mapping_error(&ndev->dev, dma_addr)) { | |
1539 | kfree_skb(skb); | |
1540 | break; | |
1541 | } | |
1542 | mdp->rx_skbuff[entry] = skb; | |
380af9e3 | 1543 | |
bc8acf2c | 1544 | skb_checksum_none_assert(skb); |
52b9fa36 | 1545 | rxdesc->addr = dma_addr; |
86a74ff2 | 1546 | } |
7d7355f5 | 1547 | wmb(); /* RACT bit must be set after all the above writes */ |
525b8075 | 1548 | if (entry >= mdp->num_rx_ring - 1) |
86a74ff2 | 1549 | rxdesc->status |= |
71557a37 | 1550 | cpu_to_edmac(mdp, RD_RACT | RD_RFP | RD_RDEL); |
86a74ff2 NI |
1551 | else |
1552 | rxdesc->status |= | |
71557a37 | 1553 | cpu_to_edmac(mdp, RD_RACT | RD_RFP); |
86a74ff2 NI |
1554 | } |
1555 | ||
1556 | /* Restart Rx engine if stopped. */ | |
1557 | /* If we don't need to check status, don't. -KDU */ | |
79fba9f5 | 1558 | if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) { |
a18e08bd | 1559 | /* fix the values for the next receiving if RDE is set */ |
3365711d BH |
1560 | if (intr_status & EESR_RDE && |
1561 | mdp->reg_offset[RDFAR] != SH_ETH_OFFSET_INVALID) { | |
128296fc SS |
1562 | u32 count = (sh_eth_read(ndev, RDFAR) - |
1563 | sh_eth_read(ndev, RDLAR)) >> 4; | |
1564 | ||
1565 | mdp->cur_rx = count; | |
1566 | mdp->dirty_rx = count; | |
1567 | } | |
4a55530f | 1568 | sh_eth_write(ndev, EDRRR_R, EDRRR); |
79fba9f5 | 1569 | } |
86a74ff2 | 1570 | |
319cd520 MK |
1571 | *quota -= limit - boguscnt - 1; |
1572 | ||
4f809cea | 1573 | return *quota <= 0; |
86a74ff2 NI |
1574 | } |
1575 | ||
4a55530f | 1576 | static void sh_eth_rcv_snd_disable(struct net_device *ndev) |
dc19e4e5 NI |
1577 | { |
1578 | /* disable tx and rx */ | |
4a55530f YS |
1579 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & |
1580 | ~(ECMR_RE | ECMR_TE), ECMR); | |
dc19e4e5 NI |
1581 | } |
1582 | ||
4a55530f | 1583 | static void sh_eth_rcv_snd_enable(struct net_device *ndev) |
dc19e4e5 NI |
1584 | { |
1585 | /* enable tx and rx */ | |
4a55530f YS |
1586 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | |
1587 | (ECMR_RE | ECMR_TE), ECMR); | |
dc19e4e5 NI |
1588 | } |
1589 | ||
86a74ff2 | 1590 | /* error control function */ |
0799c2d6 | 1591 | static void sh_eth_error(struct net_device *ndev, u32 intr_status) |
86a74ff2 NI |
1592 | { |
1593 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 | 1594 | u32 felic_stat; |
380af9e3 YS |
1595 | u32 link_stat; |
1596 | u32 mask; | |
86a74ff2 NI |
1597 | |
1598 | if (intr_status & EESR_ECI) { | |
4a55530f YS |
1599 | felic_stat = sh_eth_read(ndev, ECSR); |
1600 | sh_eth_write(ndev, felic_stat, ECSR); /* clear int */ | |
86a74ff2 | 1601 | if (felic_stat & ECSR_ICD) |
bb7d92e3 | 1602 | ndev->stats.tx_carrier_errors++; |
86a74ff2 NI |
1603 | if (felic_stat & ECSR_LCHNG) { |
1604 | /* Link Changed */ | |
4923576b | 1605 | if (mdp->cd->no_psr || mdp->no_ether_link) { |
1e1b812b | 1606 | goto ignore_link; |
380af9e3 | 1607 | } else { |
4a55530f | 1608 | link_stat = (sh_eth_read(ndev, PSR)); |
4923576b YS |
1609 | if (mdp->ether_link_active_low) |
1610 | link_stat = ~link_stat; | |
380af9e3 | 1611 | } |
128296fc | 1612 | if (!(link_stat & PHY_ST_LINK)) { |
4a55530f | 1613 | sh_eth_rcv_snd_disable(ndev); |
128296fc | 1614 | } else { |
86a74ff2 | 1615 | /* Link Up */ |
4a55530f | 1616 | sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) & |
128296fc SS |
1617 | ~DMAC_M_ECI, EESIPR); |
1618 | /* clear int */ | |
4a55530f | 1619 | sh_eth_write(ndev, sh_eth_read(ndev, ECSR), |
128296fc | 1620 | ECSR); |
4a55530f | 1621 | sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) | |
128296fc | 1622 | DMAC_M_ECI, EESIPR); |
86a74ff2 | 1623 | /* enable tx and rx */ |
4a55530f | 1624 | sh_eth_rcv_snd_enable(ndev); |
86a74ff2 NI |
1625 | } |
1626 | } | |
1627 | } | |
1628 | ||
1e1b812b | 1629 | ignore_link: |
86a74ff2 | 1630 | if (intr_status & EESR_TWB) { |
4eb313a7 SS |
1631 | /* Unused write back interrupt */ |
1632 | if (intr_status & EESR_TABT) { /* Transmit Abort int */ | |
bb7d92e3 | 1633 | ndev->stats.tx_aborted_errors++; |
8d5009f6 | 1634 | netif_err(mdp, tx_err, ndev, "Transmit Abort\n"); |
4eb313a7 | 1635 | } |
86a74ff2 NI |
1636 | } |
1637 | ||
1638 | if (intr_status & EESR_RABT) { | |
1639 | /* Receive Abort int */ | |
1640 | if (intr_status & EESR_RFRMER) { | |
1641 | /* Receive Frame Overflow int */ | |
bb7d92e3 | 1642 | ndev->stats.rx_frame_errors++; |
86a74ff2 NI |
1643 | } |
1644 | } | |
380af9e3 | 1645 | |
dc19e4e5 NI |
1646 | if (intr_status & EESR_TDE) { |
1647 | /* Transmit Descriptor Empty int */ | |
bb7d92e3 | 1648 | ndev->stats.tx_fifo_errors++; |
8d5009f6 | 1649 | netif_err(mdp, tx_err, ndev, "Transmit Descriptor Empty\n"); |
dc19e4e5 NI |
1650 | } |
1651 | ||
1652 | if (intr_status & EESR_TFE) { | |
1653 | /* FIFO under flow */ | |
bb7d92e3 | 1654 | ndev->stats.tx_fifo_errors++; |
8d5009f6 | 1655 | netif_err(mdp, tx_err, ndev, "Transmit FIFO Under flow\n"); |
86a74ff2 NI |
1656 | } |
1657 | ||
1658 | if (intr_status & EESR_RDE) { | |
1659 | /* Receive Descriptor Empty int */ | |
bb7d92e3 | 1660 | ndev->stats.rx_over_errors++; |
86a74ff2 | 1661 | } |
dc19e4e5 | 1662 | |
86a74ff2 NI |
1663 | if (intr_status & EESR_RFE) { |
1664 | /* Receive FIFO Overflow int */ | |
bb7d92e3 | 1665 | ndev->stats.rx_fifo_errors++; |
dc19e4e5 NI |
1666 | } |
1667 | ||
1668 | if (!mdp->cd->no_ade && (intr_status & EESR_ADE)) { | |
1669 | /* Address Error */ | |
bb7d92e3 | 1670 | ndev->stats.tx_fifo_errors++; |
8d5009f6 | 1671 | netif_err(mdp, tx_err, ndev, "Address Error\n"); |
86a74ff2 | 1672 | } |
380af9e3 YS |
1673 | |
1674 | mask = EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | EESR_TFE; | |
1675 | if (mdp->cd->no_ade) | |
1676 | mask &= ~EESR_ADE; | |
1677 | if (intr_status & mask) { | |
86a74ff2 | 1678 | /* Tx error */ |
4a55530f | 1679 | u32 edtrr = sh_eth_read(ndev, EDTRR); |
090d560f | 1680 | |
86a74ff2 | 1681 | /* dmesg */ |
da246855 SS |
1682 | netdev_err(ndev, "TX error. status=%8.8x cur_tx=%8.8x dirty_tx=%8.8x state=%8.8x EDTRR=%8.8x.\n", |
1683 | intr_status, mdp->cur_tx, mdp->dirty_tx, | |
1684 | (u32)ndev->state, edtrr); | |
86a74ff2 NI |
1685 | /* dirty buffer free */ |
1686 | sh_eth_txfree(ndev); | |
1687 | ||
1688 | /* SH7712 BUG */ | |
c5ed5368 | 1689 | if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) { |
86a74ff2 | 1690 | /* tx dma start */ |
c5ed5368 | 1691 | sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR); |
86a74ff2 NI |
1692 | } |
1693 | /* wakeup */ | |
1694 | netif_wake_queue(ndev); | |
1695 | } | |
1696 | } | |
1697 | ||
1698 | static irqreturn_t sh_eth_interrupt(int irq, void *netdev) | |
1699 | { | |
1700 | struct net_device *ndev = netdev; | |
1701 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
380af9e3 | 1702 | struct sh_eth_cpu_data *cd = mdp->cd; |
0e0fde3c | 1703 | irqreturn_t ret = IRQ_NONE; |
0799c2d6 | 1704 | u32 intr_status, intr_enable; |
86a74ff2 | 1705 | |
86a74ff2 NI |
1706 | spin_lock(&mdp->lock); |
1707 | ||
3893b273 | 1708 | /* Get interrupt status */ |
4a55530f | 1709 | intr_status = sh_eth_read(ndev, EESR); |
3893b273 SS |
1710 | /* Mask it with the interrupt mask, forcing ECI interrupt to be always |
1711 | * enabled since it's the one that comes thru regardless of the mask, | |
1712 | * and we need to fully handle it in sh_eth_error() in order to quench | |
1713 | * it as it doesn't get cleared by just writing 1 to the ECI bit... | |
1714 | */ | |
3719109d SS |
1715 | intr_enable = sh_eth_read(ndev, EESIPR); |
1716 | intr_status &= intr_enable | DMAC_M_ECI; | |
1717 | if (intr_status & (EESR_RX_CHECK | cd->tx_check | cd->eesr_err_check)) | |
0e0fde3c | 1718 | ret = IRQ_HANDLED; |
3719109d | 1719 | else |
283e38db BH |
1720 | goto out; |
1721 | ||
1722 | if (!likely(mdp->irq_enabled)) { | |
1723 | sh_eth_write(ndev, 0, EESIPR); | |
1724 | goto out; | |
1725 | } | |
86a74ff2 | 1726 | |
3719109d SS |
1727 | if (intr_status & EESR_RX_CHECK) { |
1728 | if (napi_schedule_prep(&mdp->napi)) { | |
1729 | /* Mask Rx interrupts */ | |
1730 | sh_eth_write(ndev, intr_enable & ~EESR_RX_CHECK, | |
1731 | EESIPR); | |
1732 | __napi_schedule(&mdp->napi); | |
1733 | } else { | |
da246855 | 1734 | netdev_warn(ndev, |
0799c2d6 | 1735 | "ignoring interrupt, status 0x%08x, mask 0x%08x.\n", |
da246855 | 1736 | intr_status, intr_enable); |
3719109d SS |
1737 | } |
1738 | } | |
86a74ff2 | 1739 | |
b0ca2a21 | 1740 | /* Tx Check */ |
380af9e3 | 1741 | if (intr_status & cd->tx_check) { |
3719109d SS |
1742 | /* Clear Tx interrupts */ |
1743 | sh_eth_write(ndev, intr_status & cd->tx_check, EESR); | |
1744 | ||
86a74ff2 NI |
1745 | sh_eth_txfree(ndev); |
1746 | netif_wake_queue(ndev); | |
1747 | } | |
1748 | ||
3719109d SS |
1749 | if (intr_status & cd->eesr_err_check) { |
1750 | /* Clear error interrupts */ | |
1751 | sh_eth_write(ndev, intr_status & cd->eesr_err_check, EESR); | |
1752 | ||
86a74ff2 | 1753 | sh_eth_error(ndev, intr_status); |
3719109d | 1754 | } |
86a74ff2 | 1755 | |
283e38db | 1756 | out: |
86a74ff2 NI |
1757 | spin_unlock(&mdp->lock); |
1758 | ||
0e0fde3c | 1759 | return ret; |
86a74ff2 NI |
1760 | } |
1761 | ||
3719109d SS |
1762 | static int sh_eth_poll(struct napi_struct *napi, int budget) |
1763 | { | |
1764 | struct sh_eth_private *mdp = container_of(napi, struct sh_eth_private, | |
1765 | napi); | |
1766 | struct net_device *ndev = napi->dev; | |
1767 | int quota = budget; | |
0799c2d6 | 1768 | u32 intr_status; |
3719109d SS |
1769 | |
1770 | for (;;) { | |
1771 | intr_status = sh_eth_read(ndev, EESR); | |
1772 | if (!(intr_status & EESR_RX_CHECK)) | |
1773 | break; | |
1774 | /* Clear Rx interrupts */ | |
1775 | sh_eth_write(ndev, intr_status & EESR_RX_CHECK, EESR); | |
1776 | ||
1777 | if (sh_eth_rx(ndev, intr_status, "a)) | |
1778 | goto out; | |
1779 | } | |
1780 | ||
1781 | napi_complete(napi); | |
1782 | ||
1783 | /* Reenable Rx interrupts */ | |
283e38db BH |
1784 | if (mdp->irq_enabled) |
1785 | sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); | |
3719109d SS |
1786 | out: |
1787 | return budget - quota; | |
1788 | } | |
1789 | ||
86a74ff2 NI |
1790 | /* PHY state control function */ |
1791 | static void sh_eth_adjust_link(struct net_device *ndev) | |
1792 | { | |
1793 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1794 | struct phy_device *phydev = mdp->phydev; | |
86a74ff2 NI |
1795 | int new_state = 0; |
1796 | ||
3340d2aa | 1797 | if (phydev->link) { |
86a74ff2 NI |
1798 | if (phydev->duplex != mdp->duplex) { |
1799 | new_state = 1; | |
1800 | mdp->duplex = phydev->duplex; | |
380af9e3 YS |
1801 | if (mdp->cd->set_duplex) |
1802 | mdp->cd->set_duplex(ndev); | |
86a74ff2 NI |
1803 | } |
1804 | ||
1805 | if (phydev->speed != mdp->speed) { | |
1806 | new_state = 1; | |
1807 | mdp->speed = phydev->speed; | |
380af9e3 YS |
1808 | if (mdp->cd->set_rate) |
1809 | mdp->cd->set_rate(ndev); | |
86a74ff2 | 1810 | } |
3340d2aa | 1811 | if (!mdp->link) { |
91a56152 | 1812 | sh_eth_write(ndev, |
128296fc SS |
1813 | sh_eth_read(ndev, ECMR) & ~ECMR_TXF, |
1814 | ECMR); | |
86a74ff2 NI |
1815 | new_state = 1; |
1816 | mdp->link = phydev->link; | |
1e1b812b SS |
1817 | if (mdp->cd->no_psr || mdp->no_ether_link) |
1818 | sh_eth_rcv_snd_enable(ndev); | |
86a74ff2 NI |
1819 | } |
1820 | } else if (mdp->link) { | |
1821 | new_state = 1; | |
3340d2aa | 1822 | mdp->link = 0; |
86a74ff2 NI |
1823 | mdp->speed = 0; |
1824 | mdp->duplex = -1; | |
1e1b812b SS |
1825 | if (mdp->cd->no_psr || mdp->no_ether_link) |
1826 | sh_eth_rcv_snd_disable(ndev); | |
86a74ff2 NI |
1827 | } |
1828 | ||
dc19e4e5 | 1829 | if (new_state && netif_msg_link(mdp)) |
86a74ff2 NI |
1830 | phy_print_status(phydev); |
1831 | } | |
1832 | ||
1833 | /* PHY init function */ | |
1834 | static int sh_eth_phy_init(struct net_device *ndev) | |
1835 | { | |
702eca02 | 1836 | struct device_node *np = ndev->dev.parent->of_node; |
86a74ff2 | 1837 | struct sh_eth_private *mdp = netdev_priv(ndev); |
86a74ff2 NI |
1838 | struct phy_device *phydev = NULL; |
1839 | ||
3340d2aa | 1840 | mdp->link = 0; |
86a74ff2 NI |
1841 | mdp->speed = 0; |
1842 | mdp->duplex = -1; | |
1843 | ||
1844 | /* Try connect to PHY */ | |
702eca02 BD |
1845 | if (np) { |
1846 | struct device_node *pn; | |
1847 | ||
1848 | pn = of_parse_phandle(np, "phy-handle", 0); | |
1849 | phydev = of_phy_connect(ndev, pn, | |
1850 | sh_eth_adjust_link, 0, | |
1851 | mdp->phy_interface); | |
1852 | ||
1853 | if (!phydev) | |
1854 | phydev = ERR_PTR(-ENOENT); | |
1855 | } else { | |
1856 | char phy_id[MII_BUS_ID_SIZE + 3]; | |
1857 | ||
1858 | snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, | |
1859 | mdp->mii_bus->id, mdp->phy_id); | |
1860 | ||
1861 | phydev = phy_connect(ndev, phy_id, sh_eth_adjust_link, | |
1862 | mdp->phy_interface); | |
1863 | } | |
1864 | ||
86a74ff2 | 1865 | if (IS_ERR(phydev)) { |
da246855 | 1866 | netdev_err(ndev, "failed to connect PHY\n"); |
86a74ff2 NI |
1867 | return PTR_ERR(phydev); |
1868 | } | |
380af9e3 | 1869 | |
da246855 SS |
1870 | netdev_info(ndev, "attached PHY %d (IRQ %d) to driver %s\n", |
1871 | phydev->addr, phydev->irq, phydev->drv->name); | |
86a74ff2 NI |
1872 | |
1873 | mdp->phydev = phydev; | |
1874 | ||
1875 | return 0; | |
1876 | } | |
1877 | ||
1878 | /* PHY control start function */ | |
1879 | static int sh_eth_phy_start(struct net_device *ndev) | |
1880 | { | |
1881 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1882 | int ret; | |
1883 | ||
1884 | ret = sh_eth_phy_init(ndev); | |
1885 | if (ret) | |
1886 | return ret; | |
1887 | ||
86a74ff2 NI |
1888 | phy_start(mdp->phydev); |
1889 | ||
1890 | return 0; | |
1891 | } | |
1892 | ||
dc19e4e5 | 1893 | static int sh_eth_get_settings(struct net_device *ndev, |
128296fc | 1894 | struct ethtool_cmd *ecmd) |
dc19e4e5 NI |
1895 | { |
1896 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1897 | unsigned long flags; | |
1898 | int ret; | |
1899 | ||
4f9dce23 BH |
1900 | if (!mdp->phydev) |
1901 | return -ENODEV; | |
1902 | ||
dc19e4e5 NI |
1903 | spin_lock_irqsave(&mdp->lock, flags); |
1904 | ret = phy_ethtool_gset(mdp->phydev, ecmd); | |
1905 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1906 | ||
1907 | return ret; | |
1908 | } | |
1909 | ||
1910 | static int sh_eth_set_settings(struct net_device *ndev, | |
128296fc | 1911 | struct ethtool_cmd *ecmd) |
dc19e4e5 NI |
1912 | { |
1913 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1914 | unsigned long flags; | |
1915 | int ret; | |
dc19e4e5 | 1916 | |
4f9dce23 BH |
1917 | if (!mdp->phydev) |
1918 | return -ENODEV; | |
1919 | ||
dc19e4e5 NI |
1920 | spin_lock_irqsave(&mdp->lock, flags); |
1921 | ||
1922 | /* disable tx and rx */ | |
4a55530f | 1923 | sh_eth_rcv_snd_disable(ndev); |
dc19e4e5 NI |
1924 | |
1925 | ret = phy_ethtool_sset(mdp->phydev, ecmd); | |
1926 | if (ret) | |
1927 | goto error_exit; | |
1928 | ||
1929 | if (ecmd->duplex == DUPLEX_FULL) | |
1930 | mdp->duplex = 1; | |
1931 | else | |
1932 | mdp->duplex = 0; | |
1933 | ||
1934 | if (mdp->cd->set_duplex) | |
1935 | mdp->cd->set_duplex(ndev); | |
1936 | ||
1937 | error_exit: | |
1938 | mdelay(1); | |
1939 | ||
1940 | /* enable tx and rx */ | |
4a55530f | 1941 | sh_eth_rcv_snd_enable(ndev); |
dc19e4e5 NI |
1942 | |
1943 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1944 | ||
1945 | return ret; | |
1946 | } | |
1947 | ||
6b4b4fea BH |
1948 | /* If it is ever necessary to increase SH_ETH_REG_DUMP_MAX_REGS, the |
1949 | * version must be bumped as well. Just adding registers up to that | |
1950 | * limit is fine, as long as the existing register indices don't | |
1951 | * change. | |
1952 | */ | |
1953 | #define SH_ETH_REG_DUMP_VERSION 1 | |
1954 | #define SH_ETH_REG_DUMP_MAX_REGS 256 | |
1955 | ||
1956 | static size_t __sh_eth_get_regs(struct net_device *ndev, u32 *buf) | |
1957 | { | |
1958 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1959 | struct sh_eth_cpu_data *cd = mdp->cd; | |
1960 | u32 *valid_map; | |
1961 | size_t len; | |
1962 | ||
1963 | BUILD_BUG_ON(SH_ETH_MAX_REGISTER_OFFSET > SH_ETH_REG_DUMP_MAX_REGS); | |
1964 | ||
1965 | /* Dump starts with a bitmap that tells ethtool which | |
1966 | * registers are defined for this chip. | |
1967 | */ | |
1968 | len = DIV_ROUND_UP(SH_ETH_REG_DUMP_MAX_REGS, 32); | |
1969 | if (buf) { | |
1970 | valid_map = buf; | |
1971 | buf += len; | |
1972 | } else { | |
1973 | valid_map = NULL; | |
1974 | } | |
1975 | ||
1976 | /* Add a register to the dump, if it has a defined offset. | |
1977 | * This automatically skips most undefined registers, but for | |
1978 | * some it is also necessary to check a capability flag in | |
1979 | * struct sh_eth_cpu_data. | |
1980 | */ | |
1981 | #define mark_reg_valid(reg) valid_map[reg / 32] |= 1U << (reg % 32) | |
1982 | #define add_reg_from(reg, read_expr) do { \ | |
1983 | if (mdp->reg_offset[reg] != SH_ETH_OFFSET_INVALID) { \ | |
1984 | if (buf) { \ | |
1985 | mark_reg_valid(reg); \ | |
1986 | *buf++ = read_expr; \ | |
1987 | } \ | |
1988 | ++len; \ | |
1989 | } \ | |
1990 | } while (0) | |
1991 | #define add_reg(reg) add_reg_from(reg, sh_eth_read(ndev, reg)) | |
1992 | #define add_tsu_reg(reg) add_reg_from(reg, sh_eth_tsu_read(mdp, reg)) | |
1993 | ||
1994 | add_reg(EDSR); | |
1995 | add_reg(EDMR); | |
1996 | add_reg(EDTRR); | |
1997 | add_reg(EDRRR); | |
1998 | add_reg(EESR); | |
1999 | add_reg(EESIPR); | |
2000 | add_reg(TDLAR); | |
2001 | add_reg(TDFAR); | |
2002 | add_reg(TDFXR); | |
2003 | add_reg(TDFFR); | |
2004 | add_reg(RDLAR); | |
2005 | add_reg(RDFAR); | |
2006 | add_reg(RDFXR); | |
2007 | add_reg(RDFFR); | |
2008 | add_reg(TRSCER); | |
2009 | add_reg(RMFCR); | |
2010 | add_reg(TFTR); | |
2011 | add_reg(FDR); | |
2012 | add_reg(RMCR); | |
2013 | add_reg(TFUCR); | |
2014 | add_reg(RFOCR); | |
2015 | if (cd->rmiimode) | |
2016 | add_reg(RMIIMODE); | |
2017 | add_reg(FCFTR); | |
2018 | if (cd->rpadir) | |
2019 | add_reg(RPADIR); | |
2020 | if (!cd->no_trimd) | |
2021 | add_reg(TRIMD); | |
2022 | add_reg(ECMR); | |
2023 | add_reg(ECSR); | |
2024 | add_reg(ECSIPR); | |
2025 | add_reg(PIR); | |
2026 | if (!cd->no_psr) | |
2027 | add_reg(PSR); | |
2028 | add_reg(RDMLR); | |
2029 | add_reg(RFLR); | |
2030 | add_reg(IPGR); | |
2031 | if (cd->apr) | |
2032 | add_reg(APR); | |
2033 | if (cd->mpr) | |
2034 | add_reg(MPR); | |
2035 | add_reg(RFCR); | |
2036 | add_reg(RFCF); | |
2037 | if (cd->tpauser) | |
2038 | add_reg(TPAUSER); | |
2039 | add_reg(TPAUSECR); | |
2040 | add_reg(GECMR); | |
2041 | if (cd->bculr) | |
2042 | add_reg(BCULR); | |
2043 | add_reg(MAHR); | |
2044 | add_reg(MALR); | |
2045 | add_reg(TROCR); | |
2046 | add_reg(CDCR); | |
2047 | add_reg(LCCR); | |
2048 | add_reg(CNDCR); | |
2049 | add_reg(CEFCR); | |
2050 | add_reg(FRECR); | |
2051 | add_reg(TSFRCR); | |
2052 | add_reg(TLFRCR); | |
2053 | add_reg(CERCR); | |
2054 | add_reg(CEECR); | |
2055 | add_reg(MAFCR); | |
2056 | if (cd->rtrate) | |
2057 | add_reg(RTRATE); | |
2058 | if (cd->hw_crc) | |
2059 | add_reg(CSMR); | |
2060 | if (cd->select_mii) | |
2061 | add_reg(RMII_MII); | |
2062 | add_reg(ARSTR); | |
2063 | if (cd->tsu) { | |
2064 | add_tsu_reg(TSU_CTRST); | |
2065 | add_tsu_reg(TSU_FWEN0); | |
2066 | add_tsu_reg(TSU_FWEN1); | |
2067 | add_tsu_reg(TSU_FCM); | |
2068 | add_tsu_reg(TSU_BSYSL0); | |
2069 | add_tsu_reg(TSU_BSYSL1); | |
2070 | add_tsu_reg(TSU_PRISL0); | |
2071 | add_tsu_reg(TSU_PRISL1); | |
2072 | add_tsu_reg(TSU_FWSL0); | |
2073 | add_tsu_reg(TSU_FWSL1); | |
2074 | add_tsu_reg(TSU_FWSLC); | |
2075 | add_tsu_reg(TSU_QTAG0); | |
2076 | add_tsu_reg(TSU_QTAG1); | |
2077 | add_tsu_reg(TSU_QTAGM0); | |
2078 | add_tsu_reg(TSU_QTAGM1); | |
2079 | add_tsu_reg(TSU_FWSR); | |
2080 | add_tsu_reg(TSU_FWINMK); | |
2081 | add_tsu_reg(TSU_ADQT0); | |
2082 | add_tsu_reg(TSU_ADQT1); | |
2083 | add_tsu_reg(TSU_VTAG0); | |
2084 | add_tsu_reg(TSU_VTAG1); | |
2085 | add_tsu_reg(TSU_ADSBSY); | |
2086 | add_tsu_reg(TSU_TEN); | |
2087 | add_tsu_reg(TSU_POST1); | |
2088 | add_tsu_reg(TSU_POST2); | |
2089 | add_tsu_reg(TSU_POST3); | |
2090 | add_tsu_reg(TSU_POST4); | |
2091 | if (mdp->reg_offset[TSU_ADRH0] != SH_ETH_OFFSET_INVALID) { | |
2092 | /* This is the start of a table, not just a single | |
2093 | * register. | |
2094 | */ | |
2095 | if (buf) { | |
2096 | unsigned int i; | |
2097 | ||
2098 | mark_reg_valid(TSU_ADRH0); | |
2099 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES * 2; i++) | |
2100 | *buf++ = ioread32( | |
2101 | mdp->tsu_addr + | |
2102 | mdp->reg_offset[TSU_ADRH0] + | |
2103 | i * 4); | |
2104 | } | |
2105 | len += SH_ETH_TSU_CAM_ENTRIES * 2; | |
2106 | } | |
2107 | } | |
2108 | ||
2109 | #undef mark_reg_valid | |
2110 | #undef add_reg_from | |
2111 | #undef add_reg | |
2112 | #undef add_tsu_reg | |
2113 | ||
2114 | return len * 4; | |
2115 | } | |
2116 | ||
2117 | static int sh_eth_get_regs_len(struct net_device *ndev) | |
2118 | { | |
2119 | return __sh_eth_get_regs(ndev, NULL); | |
2120 | } | |
2121 | ||
2122 | static void sh_eth_get_regs(struct net_device *ndev, struct ethtool_regs *regs, | |
2123 | void *buf) | |
2124 | { | |
2125 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2126 | ||
2127 | regs->version = SH_ETH_REG_DUMP_VERSION; | |
2128 | ||
2129 | pm_runtime_get_sync(&mdp->pdev->dev); | |
2130 | __sh_eth_get_regs(ndev, buf); | |
2131 | pm_runtime_put_sync(&mdp->pdev->dev); | |
2132 | } | |
2133 | ||
dc19e4e5 NI |
2134 | static int sh_eth_nway_reset(struct net_device *ndev) |
2135 | { | |
2136 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2137 | unsigned long flags; | |
2138 | int ret; | |
2139 | ||
4f9dce23 BH |
2140 | if (!mdp->phydev) |
2141 | return -ENODEV; | |
2142 | ||
dc19e4e5 NI |
2143 | spin_lock_irqsave(&mdp->lock, flags); |
2144 | ret = phy_start_aneg(mdp->phydev); | |
2145 | spin_unlock_irqrestore(&mdp->lock, flags); | |
2146 | ||
2147 | return ret; | |
2148 | } | |
2149 | ||
2150 | static u32 sh_eth_get_msglevel(struct net_device *ndev) | |
2151 | { | |
2152 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2153 | return mdp->msg_enable; | |
2154 | } | |
2155 | ||
2156 | static void sh_eth_set_msglevel(struct net_device *ndev, u32 value) | |
2157 | { | |
2158 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2159 | mdp->msg_enable = value; | |
2160 | } | |
2161 | ||
2162 | static const char sh_eth_gstrings_stats[][ETH_GSTRING_LEN] = { | |
2163 | "rx_current", "tx_current", | |
2164 | "rx_dirty", "tx_dirty", | |
2165 | }; | |
2166 | #define SH_ETH_STATS_LEN ARRAY_SIZE(sh_eth_gstrings_stats) | |
2167 | ||
2168 | static int sh_eth_get_sset_count(struct net_device *netdev, int sset) | |
2169 | { | |
2170 | switch (sset) { | |
2171 | case ETH_SS_STATS: | |
2172 | return SH_ETH_STATS_LEN; | |
2173 | default: | |
2174 | return -EOPNOTSUPP; | |
2175 | } | |
2176 | } | |
2177 | ||
2178 | static void sh_eth_get_ethtool_stats(struct net_device *ndev, | |
128296fc | 2179 | struct ethtool_stats *stats, u64 *data) |
dc19e4e5 NI |
2180 | { |
2181 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2182 | int i = 0; | |
2183 | ||
2184 | /* device-specific stats */ | |
2185 | data[i++] = mdp->cur_rx; | |
2186 | data[i++] = mdp->cur_tx; | |
2187 | data[i++] = mdp->dirty_rx; | |
2188 | data[i++] = mdp->dirty_tx; | |
2189 | } | |
2190 | ||
2191 | static void sh_eth_get_strings(struct net_device *ndev, u32 stringset, u8 *data) | |
2192 | { | |
2193 | switch (stringset) { | |
2194 | case ETH_SS_STATS: | |
2195 | memcpy(data, *sh_eth_gstrings_stats, | |
128296fc | 2196 | sizeof(sh_eth_gstrings_stats)); |
dc19e4e5 NI |
2197 | break; |
2198 | } | |
2199 | } | |
2200 | ||
525b8075 YS |
2201 | static void sh_eth_get_ringparam(struct net_device *ndev, |
2202 | struct ethtool_ringparam *ring) | |
2203 | { | |
2204 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2205 | ||
2206 | ring->rx_max_pending = RX_RING_MAX; | |
2207 | ring->tx_max_pending = TX_RING_MAX; | |
2208 | ring->rx_pending = mdp->num_rx_ring; | |
2209 | ring->tx_pending = mdp->num_tx_ring; | |
2210 | } | |
2211 | ||
2212 | static int sh_eth_set_ringparam(struct net_device *ndev, | |
2213 | struct ethtool_ringparam *ring) | |
2214 | { | |
2215 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2216 | int ret; | |
2217 | ||
2218 | if (ring->tx_pending > TX_RING_MAX || | |
2219 | ring->rx_pending > RX_RING_MAX || | |
2220 | ring->tx_pending < TX_RING_MIN || | |
2221 | ring->rx_pending < RX_RING_MIN) | |
2222 | return -EINVAL; | |
2223 | if (ring->rx_mini_pending || ring->rx_jumbo_pending) | |
2224 | return -EINVAL; | |
2225 | ||
2226 | if (netif_running(ndev)) { | |
bd888916 | 2227 | netif_device_detach(ndev); |
525b8075 | 2228 | netif_tx_disable(ndev); |
283e38db BH |
2229 | |
2230 | /* Serialise with the interrupt handler and NAPI, then | |
2231 | * disable interrupts. We have to clear the | |
2232 | * irq_enabled flag first to ensure that interrupts | |
2233 | * won't be re-enabled. | |
2234 | */ | |
2235 | mdp->irq_enabled = false; | |
525b8075 | 2236 | synchronize_irq(ndev->irq); |
283e38db | 2237 | napi_synchronize(&mdp->napi); |
525b8075 | 2238 | sh_eth_write(ndev, 0x0000, EESIPR); |
525b8075 | 2239 | |
740c7f31 | 2240 | sh_eth_dev_exit(ndev); |
525b8075 | 2241 | |
084236d8 BH |
2242 | /* Free all the skbuffs in the Rx queue. */ |
2243 | sh_eth_ring_free(ndev); | |
2244 | /* Free DMA buffer */ | |
2245 | sh_eth_free_dma_buffer(mdp); | |
2246 | } | |
525b8075 YS |
2247 | |
2248 | /* Set new parameters */ | |
2249 | mdp->num_rx_ring = ring->rx_pending; | |
2250 | mdp->num_tx_ring = ring->tx_pending; | |
2251 | ||
525b8075 | 2252 | if (netif_running(ndev)) { |
084236d8 BH |
2253 | ret = sh_eth_ring_init(ndev); |
2254 | if (ret < 0) { | |
2255 | netdev_err(ndev, "%s: sh_eth_ring_init failed.\n", | |
2256 | __func__); | |
2257 | return ret; | |
2258 | } | |
2259 | ret = sh_eth_dev_init(ndev, false); | |
2260 | if (ret < 0) { | |
2261 | netdev_err(ndev, "%s: sh_eth_dev_init failed.\n", | |
2262 | __func__); | |
2263 | return ret; | |
2264 | } | |
2265 | ||
283e38db | 2266 | mdp->irq_enabled = true; |
525b8075 YS |
2267 | sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); |
2268 | /* Setting the Rx mode will start the Rx process. */ | |
2269 | sh_eth_write(ndev, EDRRR_R, EDRRR); | |
bd888916 | 2270 | netif_device_attach(ndev); |
525b8075 YS |
2271 | } |
2272 | ||
2273 | return 0; | |
2274 | } | |
2275 | ||
9b07be4b | 2276 | static const struct ethtool_ops sh_eth_ethtool_ops = { |
dc19e4e5 NI |
2277 | .get_settings = sh_eth_get_settings, |
2278 | .set_settings = sh_eth_set_settings, | |
6b4b4fea BH |
2279 | .get_regs_len = sh_eth_get_regs_len, |
2280 | .get_regs = sh_eth_get_regs, | |
9b07be4b | 2281 | .nway_reset = sh_eth_nway_reset, |
dc19e4e5 NI |
2282 | .get_msglevel = sh_eth_get_msglevel, |
2283 | .set_msglevel = sh_eth_set_msglevel, | |
9b07be4b | 2284 | .get_link = ethtool_op_get_link, |
dc19e4e5 NI |
2285 | .get_strings = sh_eth_get_strings, |
2286 | .get_ethtool_stats = sh_eth_get_ethtool_stats, | |
2287 | .get_sset_count = sh_eth_get_sset_count, | |
525b8075 YS |
2288 | .get_ringparam = sh_eth_get_ringparam, |
2289 | .set_ringparam = sh_eth_set_ringparam, | |
dc19e4e5 NI |
2290 | }; |
2291 | ||
86a74ff2 NI |
2292 | /* network device open function */ |
2293 | static int sh_eth_open(struct net_device *ndev) | |
2294 | { | |
2295 | int ret = 0; | |
2296 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2297 | ||
bcd5149d MD |
2298 | pm_runtime_get_sync(&mdp->pdev->dev); |
2299 | ||
d2779e99 SS |
2300 | napi_enable(&mdp->napi); |
2301 | ||
a0607fd3 | 2302 | ret = request_irq(ndev->irq, sh_eth_interrupt, |
5b3dfd13 | 2303 | mdp->cd->irq_flags, ndev->name, ndev); |
86a74ff2 | 2304 | if (ret) { |
da246855 | 2305 | netdev_err(ndev, "Can not assign IRQ number\n"); |
d2779e99 | 2306 | goto out_napi_off; |
86a74ff2 NI |
2307 | } |
2308 | ||
2309 | /* Descriptor set */ | |
2310 | ret = sh_eth_ring_init(ndev); | |
2311 | if (ret) | |
2312 | goto out_free_irq; | |
2313 | ||
2314 | /* device init */ | |
525b8075 | 2315 | ret = sh_eth_dev_init(ndev, true); |
86a74ff2 NI |
2316 | if (ret) |
2317 | goto out_free_irq; | |
2318 | ||
2319 | /* PHY control start*/ | |
2320 | ret = sh_eth_phy_start(ndev); | |
2321 | if (ret) | |
2322 | goto out_free_irq; | |
2323 | ||
7fa2955f MK |
2324 | mdp->is_opened = 1; |
2325 | ||
86a74ff2 NI |
2326 | return ret; |
2327 | ||
2328 | out_free_irq: | |
2329 | free_irq(ndev->irq, ndev); | |
d2779e99 SS |
2330 | out_napi_off: |
2331 | napi_disable(&mdp->napi); | |
bcd5149d | 2332 | pm_runtime_put_sync(&mdp->pdev->dev); |
86a74ff2 NI |
2333 | return ret; |
2334 | } | |
2335 | ||
2336 | /* Timeout function */ | |
2337 | static void sh_eth_tx_timeout(struct net_device *ndev) | |
2338 | { | |
2339 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
2340 | struct sh_eth_rxdesc *rxdesc; |
2341 | int i; | |
2342 | ||
2343 | netif_stop_queue(ndev); | |
2344 | ||
8d5009f6 SS |
2345 | netif_err(mdp, timer, ndev, |
2346 | "transmit timed out, status %8.8x, resetting...\n", | |
0799c2d6 | 2347 | sh_eth_read(ndev, EESR)); |
86a74ff2 NI |
2348 | |
2349 | /* tx_errors count up */ | |
bb7d92e3 | 2350 | ndev->stats.tx_errors++; |
86a74ff2 | 2351 | |
86a74ff2 | 2352 | /* Free all the skbuffs in the Rx queue. */ |
525b8075 | 2353 | for (i = 0; i < mdp->num_rx_ring; i++) { |
86a74ff2 NI |
2354 | rxdesc = &mdp->rx_ring[i]; |
2355 | rxdesc->status = 0; | |
2356 | rxdesc->addr = 0xBADF00D0; | |
179d80af | 2357 | dev_kfree_skb(mdp->rx_skbuff[i]); |
86a74ff2 NI |
2358 | mdp->rx_skbuff[i] = NULL; |
2359 | } | |
525b8075 | 2360 | for (i = 0; i < mdp->num_tx_ring; i++) { |
179d80af | 2361 | dev_kfree_skb(mdp->tx_skbuff[i]); |
86a74ff2 NI |
2362 | mdp->tx_skbuff[i] = NULL; |
2363 | } | |
2364 | ||
2365 | /* device init */ | |
525b8075 | 2366 | sh_eth_dev_init(ndev, true); |
86a74ff2 NI |
2367 | } |
2368 | ||
2369 | /* Packet transmit function */ | |
2370 | static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev) | |
2371 | { | |
2372 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2373 | struct sh_eth_txdesc *txdesc; | |
2374 | u32 entry; | |
fb5e2f9b | 2375 | unsigned long flags; |
86a74ff2 NI |
2376 | |
2377 | spin_lock_irqsave(&mdp->lock, flags); | |
525b8075 | 2378 | if ((mdp->cur_tx - mdp->dirty_tx) >= (mdp->num_tx_ring - 4)) { |
86a74ff2 | 2379 | if (!sh_eth_txfree(ndev)) { |
8d5009f6 | 2380 | netif_warn(mdp, tx_queued, ndev, "TxFD exhausted.\n"); |
86a74ff2 NI |
2381 | netif_stop_queue(ndev); |
2382 | spin_unlock_irqrestore(&mdp->lock, flags); | |
5b548140 | 2383 | return NETDEV_TX_BUSY; |
86a74ff2 NI |
2384 | } |
2385 | } | |
2386 | spin_unlock_irqrestore(&mdp->lock, flags); | |
2387 | ||
dacc73e0 | 2388 | if (skb_put_padto(skb, ETH_ZLEN)) |
eebfb643 BH |
2389 | return NETDEV_TX_OK; |
2390 | ||
525b8075 | 2391 | entry = mdp->cur_tx % mdp->num_tx_ring; |
86a74ff2 NI |
2392 | mdp->tx_skbuff[entry] = skb; |
2393 | txdesc = &mdp->tx_ring[entry]; | |
86a74ff2 | 2394 | /* soft swap. */ |
380af9e3 YS |
2395 | if (!mdp->cd->hw_swap) |
2396 | sh_eth_soft_swap(phys_to_virt(ALIGN(txdesc->addr, 4)), | |
2397 | skb->len + 2); | |
31fcb99d YS |
2398 | txdesc->addr = dma_map_single(&ndev->dev, skb->data, skb->len, |
2399 | DMA_TO_DEVICE); | |
aa3933b8 BH |
2400 | if (dma_mapping_error(&ndev->dev, txdesc->addr)) { |
2401 | kfree_skb(skb); | |
2402 | return NETDEV_TX_OK; | |
2403 | } | |
eebfb643 | 2404 | txdesc->buffer_length = skb->len; |
86a74ff2 | 2405 | |
7d7355f5 | 2406 | wmb(); /* TACT bit must be set after all the above writes */ |
525b8075 | 2407 | if (entry >= mdp->num_tx_ring - 1) |
71557a37 | 2408 | txdesc->status |= cpu_to_edmac(mdp, TD_TACT | TD_TDLE); |
86a74ff2 | 2409 | else |
71557a37 | 2410 | txdesc->status |= cpu_to_edmac(mdp, TD_TACT); |
86a74ff2 NI |
2411 | |
2412 | mdp->cur_tx++; | |
2413 | ||
c5ed5368 YS |
2414 | if (!(sh_eth_read(ndev, EDTRR) & sh_eth_get_edtrr_trns(mdp))) |
2415 | sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR); | |
b0ca2a21 | 2416 | |
6ed10654 | 2417 | return NETDEV_TX_OK; |
86a74ff2 NI |
2418 | } |
2419 | ||
4398f9c8 BH |
2420 | /* The statistics registers have write-clear behaviour, which means we |
2421 | * will lose any increment between the read and write. We mitigate | |
2422 | * this by only clearing when we read a non-zero value, so we will | |
2423 | * never falsely report a total of zero. | |
2424 | */ | |
2425 | static void | |
2426 | sh_eth_update_stat(struct net_device *ndev, unsigned long *stat, int reg) | |
2427 | { | |
2428 | u32 delta = sh_eth_read(ndev, reg); | |
2429 | ||
2430 | if (delta) { | |
2431 | *stat += delta; | |
2432 | sh_eth_write(ndev, 0, reg); | |
2433 | } | |
2434 | } | |
2435 | ||
7fa2955f MK |
2436 | static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev) |
2437 | { | |
2438 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2439 | ||
2440 | if (sh_eth_is_rz_fast_ether(mdp)) | |
2441 | return &ndev->stats; | |
2442 | ||
2443 | if (!mdp->is_opened) | |
2444 | return &ndev->stats; | |
2445 | ||
4398f9c8 BH |
2446 | sh_eth_update_stat(ndev, &ndev->stats.tx_dropped, TROCR); |
2447 | sh_eth_update_stat(ndev, &ndev->stats.collisions, CDCR); | |
2448 | sh_eth_update_stat(ndev, &ndev->stats.tx_carrier_errors, LCCR); | |
7fa2955f MK |
2449 | |
2450 | if (sh_eth_is_gether(mdp)) { | |
4398f9c8 BH |
2451 | sh_eth_update_stat(ndev, &ndev->stats.tx_carrier_errors, |
2452 | CERCR); | |
2453 | sh_eth_update_stat(ndev, &ndev->stats.tx_carrier_errors, | |
2454 | CEECR); | |
7fa2955f | 2455 | } else { |
4398f9c8 BH |
2456 | sh_eth_update_stat(ndev, &ndev->stats.tx_carrier_errors, |
2457 | CNDCR); | |
7fa2955f MK |
2458 | } |
2459 | ||
2460 | return &ndev->stats; | |
2461 | } | |
2462 | ||
86a74ff2 NI |
2463 | /* device close function */ |
2464 | static int sh_eth_close(struct net_device *ndev) | |
2465 | { | |
2466 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
2467 | |
2468 | netif_stop_queue(ndev); | |
2469 | ||
283e38db BH |
2470 | /* Serialise with the interrupt handler and NAPI, then disable |
2471 | * interrupts. We have to clear the irq_enabled flag first to | |
2472 | * ensure that interrupts won't be re-enabled. | |
2473 | */ | |
2474 | mdp->irq_enabled = false; | |
2475 | synchronize_irq(ndev->irq); | |
2476 | napi_disable(&mdp->napi); | |
4a55530f | 2477 | sh_eth_write(ndev, 0x0000, EESIPR); |
86a74ff2 | 2478 | |
740c7f31 | 2479 | sh_eth_dev_exit(ndev); |
86a74ff2 NI |
2480 | |
2481 | /* PHY Disconnect */ | |
2482 | if (mdp->phydev) { | |
2483 | phy_stop(mdp->phydev); | |
2484 | phy_disconnect(mdp->phydev); | |
4f9dce23 | 2485 | mdp->phydev = NULL; |
86a74ff2 NI |
2486 | } |
2487 | ||
2488 | free_irq(ndev->irq, ndev); | |
2489 | ||
86a74ff2 NI |
2490 | /* Free all the skbuffs in the Rx queue. */ |
2491 | sh_eth_ring_free(ndev); | |
2492 | ||
2493 | /* free DMA buffer */ | |
91c77550 | 2494 | sh_eth_free_dma_buffer(mdp); |
86a74ff2 | 2495 | |
bcd5149d MD |
2496 | pm_runtime_put_sync(&mdp->pdev->dev); |
2497 | ||
7fa2955f | 2498 | mdp->is_opened = 0; |
bcd5149d | 2499 | |
7fa2955f | 2500 | return 0; |
86a74ff2 NI |
2501 | } |
2502 | ||
bb7d92e3 | 2503 | /* ioctl to device function */ |
128296fc | 2504 | static int sh_eth_do_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd) |
86a74ff2 NI |
2505 | { |
2506 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2507 | struct phy_device *phydev = mdp->phydev; | |
2508 | ||
2509 | if (!netif_running(ndev)) | |
2510 | return -EINVAL; | |
2511 | ||
2512 | if (!phydev) | |
2513 | return -ENODEV; | |
2514 | ||
28b04113 | 2515 | return phy_mii_ioctl(phydev, rq, cmd); |
86a74ff2 NI |
2516 | } |
2517 | ||
6743fe6d YS |
2518 | /* For TSU_POSTn. Please refer to the manual about this (strange) bitfields */ |
2519 | static void *sh_eth_tsu_get_post_reg_offset(struct sh_eth_private *mdp, | |
2520 | int entry) | |
2521 | { | |
2522 | return sh_eth_tsu_get_offset(mdp, TSU_POST1) + (entry / 8 * 4); | |
2523 | } | |
2524 | ||
2525 | static u32 sh_eth_tsu_get_post_mask(int entry) | |
2526 | { | |
2527 | return 0x0f << (28 - ((entry % 8) * 4)); | |
2528 | } | |
2529 | ||
2530 | static u32 sh_eth_tsu_get_post_bit(struct sh_eth_private *mdp, int entry) | |
2531 | { | |
2532 | return (0x08 >> (mdp->port << 1)) << (28 - ((entry % 8) * 4)); | |
2533 | } | |
2534 | ||
2535 | static void sh_eth_tsu_enable_cam_entry_post(struct net_device *ndev, | |
2536 | int entry) | |
2537 | { | |
2538 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2539 | u32 tmp; | |
2540 | void *reg_offset; | |
2541 | ||
2542 | reg_offset = sh_eth_tsu_get_post_reg_offset(mdp, entry); | |
2543 | tmp = ioread32(reg_offset); | |
2544 | iowrite32(tmp | sh_eth_tsu_get_post_bit(mdp, entry), reg_offset); | |
2545 | } | |
2546 | ||
2547 | static bool sh_eth_tsu_disable_cam_entry_post(struct net_device *ndev, | |
2548 | int entry) | |
2549 | { | |
2550 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2551 | u32 post_mask, ref_mask, tmp; | |
2552 | void *reg_offset; | |
2553 | ||
2554 | reg_offset = sh_eth_tsu_get_post_reg_offset(mdp, entry); | |
2555 | post_mask = sh_eth_tsu_get_post_mask(entry); | |
2556 | ref_mask = sh_eth_tsu_get_post_bit(mdp, entry) & ~post_mask; | |
2557 | ||
2558 | tmp = ioread32(reg_offset); | |
2559 | iowrite32(tmp & ~post_mask, reg_offset); | |
2560 | ||
2561 | /* If other port enables, the function returns "true" */ | |
2562 | return tmp & ref_mask; | |
2563 | } | |
2564 | ||
2565 | static int sh_eth_tsu_busy(struct net_device *ndev) | |
2566 | { | |
2567 | int timeout = SH_ETH_TSU_TIMEOUT_MS * 100; | |
2568 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2569 | ||
2570 | while ((sh_eth_tsu_read(mdp, TSU_ADSBSY) & TSU_ADSBSY_0)) { | |
2571 | udelay(10); | |
2572 | timeout--; | |
2573 | if (timeout <= 0) { | |
da246855 | 2574 | netdev_err(ndev, "%s: timeout\n", __func__); |
6743fe6d YS |
2575 | return -ETIMEDOUT; |
2576 | } | |
2577 | } | |
2578 | ||
2579 | return 0; | |
2580 | } | |
2581 | ||
2582 | static int sh_eth_tsu_write_entry(struct net_device *ndev, void *reg, | |
2583 | const u8 *addr) | |
2584 | { | |
2585 | u32 val; | |
2586 | ||
2587 | val = addr[0] << 24 | addr[1] << 16 | addr[2] << 8 | addr[3]; | |
2588 | iowrite32(val, reg); | |
2589 | if (sh_eth_tsu_busy(ndev) < 0) | |
2590 | return -EBUSY; | |
2591 | ||
2592 | val = addr[4] << 8 | addr[5]; | |
2593 | iowrite32(val, reg + 4); | |
2594 | if (sh_eth_tsu_busy(ndev) < 0) | |
2595 | return -EBUSY; | |
2596 | ||
2597 | return 0; | |
2598 | } | |
2599 | ||
2600 | static void sh_eth_tsu_read_entry(void *reg, u8 *addr) | |
2601 | { | |
2602 | u32 val; | |
2603 | ||
2604 | val = ioread32(reg); | |
2605 | addr[0] = (val >> 24) & 0xff; | |
2606 | addr[1] = (val >> 16) & 0xff; | |
2607 | addr[2] = (val >> 8) & 0xff; | |
2608 | addr[3] = val & 0xff; | |
2609 | val = ioread32(reg + 4); | |
2610 | addr[4] = (val >> 8) & 0xff; | |
2611 | addr[5] = val & 0xff; | |
2612 | } | |
2613 | ||
2614 | ||
2615 | static int sh_eth_tsu_find_entry(struct net_device *ndev, const u8 *addr) | |
2616 | { | |
2617 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2618 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2619 | int i; | |
2620 | u8 c_addr[ETH_ALEN]; | |
2621 | ||
2622 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++, reg_offset += 8) { | |
2623 | sh_eth_tsu_read_entry(reg_offset, c_addr); | |
c4bde29c | 2624 | if (ether_addr_equal(addr, c_addr)) |
6743fe6d YS |
2625 | return i; |
2626 | } | |
2627 | ||
2628 | return -ENOENT; | |
2629 | } | |
2630 | ||
2631 | static int sh_eth_tsu_find_empty(struct net_device *ndev) | |
2632 | { | |
2633 | u8 blank[ETH_ALEN]; | |
2634 | int entry; | |
2635 | ||
2636 | memset(blank, 0, sizeof(blank)); | |
2637 | entry = sh_eth_tsu_find_entry(ndev, blank); | |
2638 | return (entry < 0) ? -ENOMEM : entry; | |
2639 | } | |
2640 | ||
2641 | static int sh_eth_tsu_disable_cam_entry_table(struct net_device *ndev, | |
2642 | int entry) | |
2643 | { | |
2644 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2645 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2646 | int ret; | |
2647 | u8 blank[ETH_ALEN]; | |
2648 | ||
2649 | sh_eth_tsu_write(mdp, sh_eth_tsu_read(mdp, TSU_TEN) & | |
2650 | ~(1 << (31 - entry)), TSU_TEN); | |
2651 | ||
2652 | memset(blank, 0, sizeof(blank)); | |
2653 | ret = sh_eth_tsu_write_entry(ndev, reg_offset + entry * 8, blank); | |
2654 | if (ret < 0) | |
2655 | return ret; | |
2656 | return 0; | |
2657 | } | |
2658 | ||
2659 | static int sh_eth_tsu_add_entry(struct net_device *ndev, const u8 *addr) | |
2660 | { | |
2661 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2662 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2663 | int i, ret; | |
2664 | ||
2665 | if (!mdp->cd->tsu) | |
2666 | return 0; | |
2667 | ||
2668 | i = sh_eth_tsu_find_entry(ndev, addr); | |
2669 | if (i < 0) { | |
2670 | /* No entry found, create one */ | |
2671 | i = sh_eth_tsu_find_empty(ndev); | |
2672 | if (i < 0) | |
2673 | return -ENOMEM; | |
2674 | ret = sh_eth_tsu_write_entry(ndev, reg_offset + i * 8, addr); | |
2675 | if (ret < 0) | |
2676 | return ret; | |
2677 | ||
2678 | /* Enable the entry */ | |
2679 | sh_eth_tsu_write(mdp, sh_eth_tsu_read(mdp, TSU_TEN) | | |
2680 | (1 << (31 - i)), TSU_TEN); | |
2681 | } | |
2682 | ||
2683 | /* Entry found or created, enable POST */ | |
2684 | sh_eth_tsu_enable_cam_entry_post(ndev, i); | |
2685 | ||
2686 | return 0; | |
2687 | } | |
2688 | ||
2689 | static int sh_eth_tsu_del_entry(struct net_device *ndev, const u8 *addr) | |
2690 | { | |
2691 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2692 | int i, ret; | |
2693 | ||
2694 | if (!mdp->cd->tsu) | |
2695 | return 0; | |
2696 | ||
2697 | i = sh_eth_tsu_find_entry(ndev, addr); | |
2698 | if (i) { | |
2699 | /* Entry found */ | |
2700 | if (sh_eth_tsu_disable_cam_entry_post(ndev, i)) | |
2701 | goto done; | |
2702 | ||
2703 | /* Disable the entry if both ports was disabled */ | |
2704 | ret = sh_eth_tsu_disable_cam_entry_table(ndev, i); | |
2705 | if (ret < 0) | |
2706 | return ret; | |
2707 | } | |
2708 | done: | |
2709 | return 0; | |
2710 | } | |
2711 | ||
2712 | static int sh_eth_tsu_purge_all(struct net_device *ndev) | |
2713 | { | |
2714 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2715 | int i, ret; | |
2716 | ||
b37feed7 | 2717 | if (!mdp->cd->tsu) |
6743fe6d YS |
2718 | return 0; |
2719 | ||
2720 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++) { | |
2721 | if (sh_eth_tsu_disable_cam_entry_post(ndev, i)) | |
2722 | continue; | |
2723 | ||
2724 | /* Disable the entry if both ports was disabled */ | |
2725 | ret = sh_eth_tsu_disable_cam_entry_table(ndev, i); | |
2726 | if (ret < 0) | |
2727 | return ret; | |
2728 | } | |
2729 | ||
2730 | return 0; | |
2731 | } | |
2732 | ||
2733 | static void sh_eth_tsu_purge_mcast(struct net_device *ndev) | |
2734 | { | |
2735 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2736 | u8 addr[ETH_ALEN]; | |
2737 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2738 | int i; | |
2739 | ||
b37feed7 | 2740 | if (!mdp->cd->tsu) |
6743fe6d YS |
2741 | return; |
2742 | ||
2743 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++, reg_offset += 8) { | |
2744 | sh_eth_tsu_read_entry(reg_offset, addr); | |
2745 | if (is_multicast_ether_addr(addr)) | |
2746 | sh_eth_tsu_del_entry(ndev, addr); | |
2747 | } | |
2748 | } | |
2749 | ||
b37feed7 BH |
2750 | /* Update promiscuous flag and multicast filter */ |
2751 | static void sh_eth_set_rx_mode(struct net_device *ndev) | |
86a74ff2 | 2752 | { |
6743fe6d YS |
2753 | struct sh_eth_private *mdp = netdev_priv(ndev); |
2754 | u32 ecmr_bits; | |
2755 | int mcast_all = 0; | |
2756 | unsigned long flags; | |
2757 | ||
2758 | spin_lock_irqsave(&mdp->lock, flags); | |
128296fc | 2759 | /* Initial condition is MCT = 1, PRM = 0. |
6743fe6d YS |
2760 | * Depending on ndev->flags, set PRM or clear MCT |
2761 | */ | |
b37feed7 BH |
2762 | ecmr_bits = sh_eth_read(ndev, ECMR) & ~ECMR_PRM; |
2763 | if (mdp->cd->tsu) | |
2764 | ecmr_bits |= ECMR_MCT; | |
6743fe6d YS |
2765 | |
2766 | if (!(ndev->flags & IFF_MULTICAST)) { | |
2767 | sh_eth_tsu_purge_mcast(ndev); | |
2768 | mcast_all = 1; | |
2769 | } | |
2770 | if (ndev->flags & IFF_ALLMULTI) { | |
2771 | sh_eth_tsu_purge_mcast(ndev); | |
2772 | ecmr_bits &= ~ECMR_MCT; | |
2773 | mcast_all = 1; | |
2774 | } | |
2775 | ||
86a74ff2 | 2776 | if (ndev->flags & IFF_PROMISC) { |
6743fe6d YS |
2777 | sh_eth_tsu_purge_all(ndev); |
2778 | ecmr_bits = (ecmr_bits & ~ECMR_MCT) | ECMR_PRM; | |
2779 | } else if (mdp->cd->tsu) { | |
2780 | struct netdev_hw_addr *ha; | |
2781 | netdev_for_each_mc_addr(ha, ndev) { | |
2782 | if (mcast_all && is_multicast_ether_addr(ha->addr)) | |
2783 | continue; | |
2784 | ||
2785 | if (sh_eth_tsu_add_entry(ndev, ha->addr) < 0) { | |
2786 | if (!mcast_all) { | |
2787 | sh_eth_tsu_purge_mcast(ndev); | |
2788 | ecmr_bits &= ~ECMR_MCT; | |
2789 | mcast_all = 1; | |
2790 | } | |
2791 | } | |
2792 | } | |
86a74ff2 | 2793 | } |
6743fe6d YS |
2794 | |
2795 | /* update the ethernet mode */ | |
2796 | sh_eth_write(ndev, ecmr_bits, ECMR); | |
2797 | ||
2798 | spin_unlock_irqrestore(&mdp->lock, flags); | |
86a74ff2 | 2799 | } |
71cc7c37 YS |
2800 | |
2801 | static int sh_eth_get_vtag_index(struct sh_eth_private *mdp) | |
2802 | { | |
2803 | if (!mdp->port) | |
2804 | return TSU_VTAG0; | |
2805 | else | |
2806 | return TSU_VTAG1; | |
2807 | } | |
2808 | ||
80d5c368 PM |
2809 | static int sh_eth_vlan_rx_add_vid(struct net_device *ndev, |
2810 | __be16 proto, u16 vid) | |
71cc7c37 YS |
2811 | { |
2812 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2813 | int vtag_reg_index = sh_eth_get_vtag_index(mdp); | |
2814 | ||
2815 | if (unlikely(!mdp->cd->tsu)) | |
2816 | return -EPERM; | |
2817 | ||
2818 | /* No filtering if vid = 0 */ | |
2819 | if (!vid) | |
2820 | return 0; | |
2821 | ||
2822 | mdp->vlan_num_ids++; | |
2823 | ||
128296fc | 2824 | /* The controller has one VLAN tag HW filter. So, if the filter is |
71cc7c37 YS |
2825 | * already enabled, the driver disables it and the filte |
2826 | */ | |
2827 | if (mdp->vlan_num_ids > 1) { | |
2828 | /* disable VLAN filter */ | |
2829 | sh_eth_tsu_write(mdp, 0, vtag_reg_index); | |
2830 | return 0; | |
2831 | } | |
2832 | ||
2833 | sh_eth_tsu_write(mdp, TSU_VTAG_ENABLE | (vid & TSU_VTAG_VID_MASK), | |
2834 | vtag_reg_index); | |
2835 | ||
2836 | return 0; | |
2837 | } | |
2838 | ||
80d5c368 PM |
2839 | static int sh_eth_vlan_rx_kill_vid(struct net_device *ndev, |
2840 | __be16 proto, u16 vid) | |
71cc7c37 YS |
2841 | { |
2842 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2843 | int vtag_reg_index = sh_eth_get_vtag_index(mdp); | |
2844 | ||
2845 | if (unlikely(!mdp->cd->tsu)) | |
2846 | return -EPERM; | |
2847 | ||
2848 | /* No filtering if vid = 0 */ | |
2849 | if (!vid) | |
2850 | return 0; | |
2851 | ||
2852 | mdp->vlan_num_ids--; | |
2853 | sh_eth_tsu_write(mdp, 0, vtag_reg_index); | |
2854 | ||
2855 | return 0; | |
2856 | } | |
86a74ff2 NI |
2857 | |
2858 | /* SuperH's TSU register init function */ | |
4a55530f | 2859 | static void sh_eth_tsu_init(struct sh_eth_private *mdp) |
86a74ff2 | 2860 | { |
db893473 SH |
2861 | if (sh_eth_is_rz_fast_ether(mdp)) { |
2862 | sh_eth_tsu_write(mdp, 0, TSU_TEN); /* Disable all CAM entry */ | |
2863 | return; | |
2864 | } | |
2865 | ||
4a55530f YS |
2866 | sh_eth_tsu_write(mdp, 0, TSU_FWEN0); /* Disable forward(0->1) */ |
2867 | sh_eth_tsu_write(mdp, 0, TSU_FWEN1); /* Disable forward(1->0) */ | |
2868 | sh_eth_tsu_write(mdp, 0, TSU_FCM); /* forward fifo 3k-3k */ | |
2869 | sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL0); | |
2870 | sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL1); | |
2871 | sh_eth_tsu_write(mdp, 0, TSU_PRISL0); | |
2872 | sh_eth_tsu_write(mdp, 0, TSU_PRISL1); | |
2873 | sh_eth_tsu_write(mdp, 0, TSU_FWSL0); | |
2874 | sh_eth_tsu_write(mdp, 0, TSU_FWSL1); | |
2875 | sh_eth_tsu_write(mdp, TSU_FWSLC_POSTENU | TSU_FWSLC_POSTENL, TSU_FWSLC); | |
c5ed5368 YS |
2876 | if (sh_eth_is_gether(mdp)) { |
2877 | sh_eth_tsu_write(mdp, 0, TSU_QTAG0); /* Disable QTAG(0->1) */ | |
2878 | sh_eth_tsu_write(mdp, 0, TSU_QTAG1); /* Disable QTAG(1->0) */ | |
2879 | } else { | |
2880 | sh_eth_tsu_write(mdp, 0, TSU_QTAGM0); /* Disable QTAG(0->1) */ | |
2881 | sh_eth_tsu_write(mdp, 0, TSU_QTAGM1); /* Disable QTAG(1->0) */ | |
2882 | } | |
4a55530f YS |
2883 | sh_eth_tsu_write(mdp, 0, TSU_FWSR); /* all interrupt status clear */ |
2884 | sh_eth_tsu_write(mdp, 0, TSU_FWINMK); /* Disable all interrupt */ | |
2885 | sh_eth_tsu_write(mdp, 0, TSU_TEN); /* Disable all CAM entry */ | |
2886 | sh_eth_tsu_write(mdp, 0, TSU_POST1); /* Disable CAM entry [ 0- 7] */ | |
2887 | sh_eth_tsu_write(mdp, 0, TSU_POST2); /* Disable CAM entry [ 8-15] */ | |
2888 | sh_eth_tsu_write(mdp, 0, TSU_POST3); /* Disable CAM entry [16-23] */ | |
2889 | sh_eth_tsu_write(mdp, 0, TSU_POST4); /* Disable CAM entry [24-31] */ | |
86a74ff2 NI |
2890 | } |
2891 | ||
2892 | /* MDIO bus release function */ | |
bd920ff5 | 2893 | static int sh_mdio_release(struct sh_eth_private *mdp) |
86a74ff2 | 2894 | { |
86a74ff2 | 2895 | /* unregister mdio bus */ |
bd920ff5 | 2896 | mdiobus_unregister(mdp->mii_bus); |
86a74ff2 NI |
2897 | |
2898 | /* free bitbang info */ | |
bd920ff5 | 2899 | free_mdio_bitbang(mdp->mii_bus); |
86a74ff2 NI |
2900 | |
2901 | return 0; | |
2902 | } | |
2903 | ||
2904 | /* MDIO bus init function */ | |
bd920ff5 | 2905 | static int sh_mdio_init(struct sh_eth_private *mdp, |
b3017e6a | 2906 | struct sh_eth_plat_data *pd) |
86a74ff2 NI |
2907 | { |
2908 | int ret, i; | |
2909 | struct bb_info *bitbang; | |
bd920ff5 | 2910 | struct platform_device *pdev = mdp->pdev; |
aa8d4225 | 2911 | struct device *dev = &mdp->pdev->dev; |
86a74ff2 NI |
2912 | |
2913 | /* create bit control struct for PHY */ | |
aa8d4225 | 2914 | bitbang = devm_kzalloc(dev, sizeof(struct bb_info), GFP_KERNEL); |
f738a13d LP |
2915 | if (!bitbang) |
2916 | return -ENOMEM; | |
86a74ff2 NI |
2917 | |
2918 | /* bitbang init */ | |
ae70644d | 2919 | bitbang->addr = mdp->addr + mdp->reg_offset[PIR]; |
b3017e6a | 2920 | bitbang->set_gate = pd->set_mdio_gate; |
dfed5e7f SS |
2921 | bitbang->mdi_msk = PIR_MDI; |
2922 | bitbang->mdo_msk = PIR_MDO; | |
2923 | bitbang->mmd_msk = PIR_MMD; | |
2924 | bitbang->mdc_msk = PIR_MDC; | |
86a74ff2 NI |
2925 | bitbang->ctrl.ops = &bb_ops; |
2926 | ||
c2e07b3a | 2927 | /* MII controller setting */ |
86a74ff2 | 2928 | mdp->mii_bus = alloc_mdio_bitbang(&bitbang->ctrl); |
f738a13d LP |
2929 | if (!mdp->mii_bus) |
2930 | return -ENOMEM; | |
86a74ff2 NI |
2931 | |
2932 | /* Hook up MII support for ethtool */ | |
2933 | mdp->mii_bus->name = "sh_mii"; | |
a5bd6060 | 2934 | mdp->mii_bus->parent = dev; |
5278fb54 | 2935 | snprintf(mdp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x", |
bd920ff5 | 2936 | pdev->name, pdev->id); |
86a74ff2 NI |
2937 | |
2938 | /* PHY IRQ */ | |
86b5d251 SS |
2939 | mdp->mii_bus->irq = devm_kmalloc_array(dev, PHY_MAX_ADDR, sizeof(int), |
2940 | GFP_KERNEL); | |
86a74ff2 NI |
2941 | if (!mdp->mii_bus->irq) { |
2942 | ret = -ENOMEM; | |
2943 | goto out_free_bus; | |
2944 | } | |
2945 | ||
bd920ff5 LP |
2946 | /* register MDIO bus */ |
2947 | if (dev->of_node) { | |
2948 | ret = of_mdiobus_register(mdp->mii_bus, dev->of_node); | |
702eca02 BD |
2949 | } else { |
2950 | for (i = 0; i < PHY_MAX_ADDR; i++) | |
2951 | mdp->mii_bus->irq[i] = PHY_POLL; | |
2952 | if (pd->phy_irq > 0) | |
2953 | mdp->mii_bus->irq[pd->phy] = pd->phy_irq; | |
2954 | ||
2955 | ret = mdiobus_register(mdp->mii_bus); | |
2956 | } | |
2957 | ||
86a74ff2 | 2958 | if (ret) |
d5e07e69 | 2959 | goto out_free_bus; |
86a74ff2 | 2960 | |
86a74ff2 NI |
2961 | return 0; |
2962 | ||
86a74ff2 | 2963 | out_free_bus: |
298cf9be | 2964 | free_mdio_bitbang(mdp->mii_bus); |
86a74ff2 NI |
2965 | return ret; |
2966 | } | |
2967 | ||
4a55530f YS |
2968 | static const u16 *sh_eth_get_register_offset(int register_type) |
2969 | { | |
2970 | const u16 *reg_offset = NULL; | |
2971 | ||
2972 | switch (register_type) { | |
2973 | case SH_ETH_REG_GIGABIT: | |
2974 | reg_offset = sh_eth_offset_gigabit; | |
2975 | break; | |
db893473 SH |
2976 | case SH_ETH_REG_FAST_RZ: |
2977 | reg_offset = sh_eth_offset_fast_rz; | |
2978 | break; | |
a3f109bd SS |
2979 | case SH_ETH_REG_FAST_RCAR: |
2980 | reg_offset = sh_eth_offset_fast_rcar; | |
2981 | break; | |
4a55530f YS |
2982 | case SH_ETH_REG_FAST_SH4: |
2983 | reg_offset = sh_eth_offset_fast_sh4; | |
2984 | break; | |
2985 | case SH_ETH_REG_FAST_SH3_SH2: | |
2986 | reg_offset = sh_eth_offset_fast_sh3_sh2; | |
2987 | break; | |
2988 | default: | |
4a55530f YS |
2989 | break; |
2990 | } | |
2991 | ||
2992 | return reg_offset; | |
2993 | } | |
2994 | ||
8f728d79 | 2995 | static const struct net_device_ops sh_eth_netdev_ops = { |
ebf84eaa AB |
2996 | .ndo_open = sh_eth_open, |
2997 | .ndo_stop = sh_eth_close, | |
2998 | .ndo_start_xmit = sh_eth_start_xmit, | |
2999 | .ndo_get_stats = sh_eth_get_stats, | |
b37feed7 | 3000 | .ndo_set_rx_mode = sh_eth_set_rx_mode, |
ebf84eaa AB |
3001 | .ndo_tx_timeout = sh_eth_tx_timeout, |
3002 | .ndo_do_ioctl = sh_eth_do_ioctl, | |
3003 | .ndo_validate_addr = eth_validate_addr, | |
3004 | .ndo_set_mac_address = eth_mac_addr, | |
3005 | .ndo_change_mtu = eth_change_mtu, | |
3006 | }; | |
3007 | ||
8f728d79 SS |
3008 | static const struct net_device_ops sh_eth_netdev_ops_tsu = { |
3009 | .ndo_open = sh_eth_open, | |
3010 | .ndo_stop = sh_eth_close, | |
3011 | .ndo_start_xmit = sh_eth_start_xmit, | |
3012 | .ndo_get_stats = sh_eth_get_stats, | |
b37feed7 | 3013 | .ndo_set_rx_mode = sh_eth_set_rx_mode, |
8f728d79 SS |
3014 | .ndo_vlan_rx_add_vid = sh_eth_vlan_rx_add_vid, |
3015 | .ndo_vlan_rx_kill_vid = sh_eth_vlan_rx_kill_vid, | |
3016 | .ndo_tx_timeout = sh_eth_tx_timeout, | |
3017 | .ndo_do_ioctl = sh_eth_do_ioctl, | |
3018 | .ndo_validate_addr = eth_validate_addr, | |
3019 | .ndo_set_mac_address = eth_mac_addr, | |
3020 | .ndo_change_mtu = eth_change_mtu, | |
3021 | }; | |
3022 | ||
b356e978 SS |
3023 | #ifdef CONFIG_OF |
3024 | static struct sh_eth_plat_data *sh_eth_parse_dt(struct device *dev) | |
3025 | { | |
3026 | struct device_node *np = dev->of_node; | |
3027 | struct sh_eth_plat_data *pdata; | |
b356e978 SS |
3028 | const char *mac_addr; |
3029 | ||
3030 | pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); | |
3031 | if (!pdata) | |
3032 | return NULL; | |
3033 | ||
3034 | pdata->phy_interface = of_get_phy_mode(np); | |
3035 | ||
b356e978 SS |
3036 | mac_addr = of_get_mac_address(np); |
3037 | if (mac_addr) | |
3038 | memcpy(pdata->mac_addr, mac_addr, ETH_ALEN); | |
3039 | ||
3040 | pdata->no_ether_link = | |
3041 | of_property_read_bool(np, "renesas,no-ether-link"); | |
3042 | pdata->ether_link_active_low = | |
3043 | of_property_read_bool(np, "renesas,ether-link-active-low"); | |
3044 | ||
3045 | return pdata; | |
3046 | } | |
3047 | ||
3048 | static const struct of_device_id sh_eth_match_table[] = { | |
3049 | { .compatible = "renesas,gether-r8a7740", .data = &r8a7740_data }, | |
3050 | { .compatible = "renesas,ether-r8a7778", .data = &r8a777x_data }, | |
3051 | { .compatible = "renesas,ether-r8a7779", .data = &r8a777x_data }, | |
3052 | { .compatible = "renesas,ether-r8a7790", .data = &r8a779x_data }, | |
3053 | { .compatible = "renesas,ether-r8a7791", .data = &r8a779x_data }, | |
9488e1e5 | 3054 | { .compatible = "renesas,ether-r8a7793", .data = &r8a779x_data }, |
0f76b9d8 | 3055 | { .compatible = "renesas,ether-r8a7794", .data = &r8a779x_data }, |
b356e978 SS |
3056 | { .compatible = "renesas,ether-r7s72100", .data = &r7s72100_data }, |
3057 | { } | |
3058 | }; | |
3059 | MODULE_DEVICE_TABLE(of, sh_eth_match_table); | |
3060 | #else | |
3061 | static inline struct sh_eth_plat_data *sh_eth_parse_dt(struct device *dev) | |
3062 | { | |
3063 | return NULL; | |
3064 | } | |
3065 | #endif | |
3066 | ||
86a74ff2 NI |
3067 | static int sh_eth_drv_probe(struct platform_device *pdev) |
3068 | { | |
9c38657c | 3069 | int ret, devno = 0; |
86a74ff2 NI |
3070 | struct resource *res; |
3071 | struct net_device *ndev = NULL; | |
ec0d7551 | 3072 | struct sh_eth_private *mdp = NULL; |
0b76b862 | 3073 | struct sh_eth_plat_data *pd = dev_get_platdata(&pdev->dev); |
afe391ad | 3074 | const struct platform_device_id *id = platform_get_device_id(pdev); |
86a74ff2 NI |
3075 | |
3076 | /* get base addr */ | |
3077 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
86a74ff2 NI |
3078 | |
3079 | ndev = alloc_etherdev(sizeof(struct sh_eth_private)); | |
f738a13d LP |
3080 | if (!ndev) |
3081 | return -ENOMEM; | |
86a74ff2 | 3082 | |
b5893a08 BD |
3083 | pm_runtime_enable(&pdev->dev); |
3084 | pm_runtime_get_sync(&pdev->dev); | |
3085 | ||
86a74ff2 NI |
3086 | devno = pdev->id; |
3087 | if (devno < 0) | |
3088 | devno = 0; | |
3089 | ||
3090 | ndev->dma = -1; | |
cc3c080d | 3091 | ret = platform_get_irq(pdev, 0); |
7a468ac6 | 3092 | if (ret < 0) |
86a74ff2 | 3093 | goto out_release; |
cc3c080d | 3094 | ndev->irq = ret; |
86a74ff2 NI |
3095 | |
3096 | SET_NETDEV_DEV(ndev, &pdev->dev); | |
3097 | ||
86a74ff2 | 3098 | mdp = netdev_priv(ndev); |
525b8075 YS |
3099 | mdp->num_tx_ring = TX_RING_SIZE; |
3100 | mdp->num_rx_ring = RX_RING_SIZE; | |
d5e07e69 SS |
3101 | mdp->addr = devm_ioremap_resource(&pdev->dev, res); |
3102 | if (IS_ERR(mdp->addr)) { | |
3103 | ret = PTR_ERR(mdp->addr); | |
ae70644d YS |
3104 | goto out_release; |
3105 | } | |
3106 | ||
c960804f VB |
3107 | ndev->base_addr = res->start; |
3108 | ||
86a74ff2 | 3109 | spin_lock_init(&mdp->lock); |
bcd5149d | 3110 | mdp->pdev = pdev; |
86a74ff2 | 3111 | |
b356e978 SS |
3112 | if (pdev->dev.of_node) |
3113 | pd = sh_eth_parse_dt(&pdev->dev); | |
3b4c5cbf SS |
3114 | if (!pd) { |
3115 | dev_err(&pdev->dev, "no platform data\n"); | |
3116 | ret = -EINVAL; | |
3117 | goto out_release; | |
3118 | } | |
3119 | ||
86a74ff2 | 3120 | /* get PHY ID */ |
71557a37 | 3121 | mdp->phy_id = pd->phy; |
e47c9052 | 3122 | mdp->phy_interface = pd->phy_interface; |
71557a37 YS |
3123 | /* EDMAC endian */ |
3124 | mdp->edmac_endian = pd->edmac_endian; | |
4923576b YS |
3125 | mdp->no_ether_link = pd->no_ether_link; |
3126 | mdp->ether_link_active_low = pd->ether_link_active_low; | |
86a74ff2 | 3127 | |
380af9e3 | 3128 | /* set cpu data */ |
b356e978 SS |
3129 | if (id) { |
3130 | mdp->cd = (struct sh_eth_cpu_data *)id->driver_data; | |
3131 | } else { | |
3132 | const struct of_device_id *match; | |
3133 | ||
3134 | match = of_match_device(of_match_ptr(sh_eth_match_table), | |
3135 | &pdev->dev); | |
3136 | mdp->cd = (struct sh_eth_cpu_data *)match->data; | |
3137 | } | |
a3153d8c | 3138 | mdp->reg_offset = sh_eth_get_register_offset(mdp->cd->register_type); |
264be2f5 SS |
3139 | if (!mdp->reg_offset) { |
3140 | dev_err(&pdev->dev, "Unknown register type (%d)\n", | |
3141 | mdp->cd->register_type); | |
3142 | ret = -EINVAL; | |
3143 | goto out_release; | |
3144 | } | |
380af9e3 YS |
3145 | sh_eth_set_default_cpu_data(mdp->cd); |
3146 | ||
86a74ff2 | 3147 | /* set function */ |
8f728d79 SS |
3148 | if (mdp->cd->tsu) |
3149 | ndev->netdev_ops = &sh_eth_netdev_ops_tsu; | |
3150 | else | |
3151 | ndev->netdev_ops = &sh_eth_netdev_ops; | |
7ad24ea4 | 3152 | ndev->ethtool_ops = &sh_eth_ethtool_ops; |
86a74ff2 NI |
3153 | ndev->watchdog_timeo = TX_TIMEOUT; |
3154 | ||
dc19e4e5 NI |
3155 | /* debug message level */ |
3156 | mdp->msg_enable = SH_ETH_DEF_MSG_ENABLE; | |
86a74ff2 NI |
3157 | |
3158 | /* read and set MAC address */ | |
748031f9 | 3159 | read_mac_address(ndev, pd->mac_addr); |
ff6e7228 SS |
3160 | if (!is_valid_ether_addr(ndev->dev_addr)) { |
3161 | dev_warn(&pdev->dev, | |
3162 | "no valid MAC address supplied, using a random one.\n"); | |
3163 | eth_hw_addr_random(ndev); | |
3164 | } | |
86a74ff2 | 3165 | |
6ba88021 YS |
3166 | /* ioremap the TSU registers */ |
3167 | if (mdp->cd->tsu) { | |
3168 | struct resource *rtsu; | |
3169 | rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1); | |
d5e07e69 SS |
3170 | mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu); |
3171 | if (IS_ERR(mdp->tsu_addr)) { | |
3172 | ret = PTR_ERR(mdp->tsu_addr); | |
fc0c0900 SS |
3173 | goto out_release; |
3174 | } | |
6743fe6d | 3175 | mdp->port = devno % 2; |
f646968f | 3176 | ndev->features = NETIF_F_HW_VLAN_CTAG_FILTER; |
6ba88021 YS |
3177 | } |
3178 | ||
150647fb YS |
3179 | /* initialize first or needed device */ |
3180 | if (!devno || pd->needs_init) { | |
380af9e3 YS |
3181 | if (mdp->cd->chip_reset) |
3182 | mdp->cd->chip_reset(ndev); | |
86a74ff2 | 3183 | |
4986b996 YS |
3184 | if (mdp->cd->tsu) { |
3185 | /* TSU init (Init only)*/ | |
3186 | sh_eth_tsu_init(mdp); | |
3187 | } | |
86a74ff2 NI |
3188 | } |
3189 | ||
966d6dbb HN |
3190 | if (mdp->cd->rmiimode) |
3191 | sh_eth_write(ndev, 0x1, RMIIMODE); | |
3192 | ||
daacf03f LP |
3193 | /* MDIO bus init */ |
3194 | ret = sh_mdio_init(mdp, pd); | |
3195 | if (ret) { | |
3196 | dev_err(&ndev->dev, "failed to initialise MDIO\n"); | |
3197 | goto out_release; | |
3198 | } | |
3199 | ||
3719109d SS |
3200 | netif_napi_add(ndev, &mdp->napi, sh_eth_poll, 64); |
3201 | ||
86a74ff2 NI |
3202 | /* network device register */ |
3203 | ret = register_netdev(ndev); | |
3204 | if (ret) | |
3719109d | 3205 | goto out_napi_del; |
86a74ff2 | 3206 | |
25985edc | 3207 | /* print device information */ |
f75f14ec SS |
3208 | netdev_info(ndev, "Base address at 0x%x, %pM, IRQ %d.\n", |
3209 | (u32)ndev->base_addr, ndev->dev_addr, ndev->irq); | |
86a74ff2 | 3210 | |
b5893a08 | 3211 | pm_runtime_put(&pdev->dev); |
86a74ff2 NI |
3212 | platform_set_drvdata(pdev, ndev); |
3213 | ||
3214 | return ret; | |
3215 | ||
3719109d SS |
3216 | out_napi_del: |
3217 | netif_napi_del(&mdp->napi); | |
daacf03f | 3218 | sh_mdio_release(mdp); |
3719109d | 3219 | |
86a74ff2 NI |
3220 | out_release: |
3221 | /* net_dev free */ | |
3222 | if (ndev) | |
3223 | free_netdev(ndev); | |
3224 | ||
b5893a08 BD |
3225 | pm_runtime_put(&pdev->dev); |
3226 | pm_runtime_disable(&pdev->dev); | |
86a74ff2 NI |
3227 | return ret; |
3228 | } | |
3229 | ||
3230 | static int sh_eth_drv_remove(struct platform_device *pdev) | |
3231 | { | |
3232 | struct net_device *ndev = platform_get_drvdata(pdev); | |
3719109d | 3233 | struct sh_eth_private *mdp = netdev_priv(ndev); |
86a74ff2 | 3234 | |
86a74ff2 | 3235 | unregister_netdev(ndev); |
3719109d | 3236 | netif_napi_del(&mdp->napi); |
daacf03f | 3237 | sh_mdio_release(mdp); |
bcd5149d | 3238 | pm_runtime_disable(&pdev->dev); |
86a74ff2 | 3239 | free_netdev(ndev); |
86a74ff2 NI |
3240 | |
3241 | return 0; | |
3242 | } | |
3243 | ||
540ad1b8 | 3244 | #ifdef CONFIG_PM |
b71af046 MU |
3245 | #ifdef CONFIG_PM_SLEEP |
3246 | static int sh_eth_suspend(struct device *dev) | |
3247 | { | |
3248 | struct net_device *ndev = dev_get_drvdata(dev); | |
3249 | int ret = 0; | |
3250 | ||
3251 | if (netif_running(ndev)) { | |
3252 | netif_device_detach(ndev); | |
3253 | ret = sh_eth_close(ndev); | |
3254 | } | |
3255 | ||
3256 | return ret; | |
3257 | } | |
3258 | ||
3259 | static int sh_eth_resume(struct device *dev) | |
3260 | { | |
3261 | struct net_device *ndev = dev_get_drvdata(dev); | |
3262 | int ret = 0; | |
3263 | ||
3264 | if (netif_running(ndev)) { | |
3265 | ret = sh_eth_open(ndev); | |
3266 | if (ret < 0) | |
3267 | return ret; | |
3268 | netif_device_attach(ndev); | |
3269 | } | |
3270 | ||
3271 | return ret; | |
3272 | } | |
3273 | #endif | |
3274 | ||
bcd5149d MD |
3275 | static int sh_eth_runtime_nop(struct device *dev) |
3276 | { | |
128296fc | 3277 | /* Runtime PM callback shared between ->runtime_suspend() |
bcd5149d MD |
3278 | * and ->runtime_resume(). Simply returns success. |
3279 | * | |
3280 | * This driver re-initializes all registers after | |
3281 | * pm_runtime_get_sync() anyway so there is no need | |
3282 | * to save and restore registers here. | |
3283 | */ | |
3284 | return 0; | |
3285 | } | |
3286 | ||
540ad1b8 | 3287 | static const struct dev_pm_ops sh_eth_dev_pm_ops = { |
b71af046 | 3288 | SET_SYSTEM_SLEEP_PM_OPS(sh_eth_suspend, sh_eth_resume) |
e7d7e898 | 3289 | SET_RUNTIME_PM_OPS(sh_eth_runtime_nop, sh_eth_runtime_nop, NULL) |
bcd5149d | 3290 | }; |
540ad1b8 NI |
3291 | #define SH_ETH_PM_OPS (&sh_eth_dev_pm_ops) |
3292 | #else | |
3293 | #define SH_ETH_PM_OPS NULL | |
3294 | #endif | |
bcd5149d | 3295 | |
afe391ad | 3296 | static struct platform_device_id sh_eth_id_table[] = { |
c18a79ab | 3297 | { "sh7619-ether", (kernel_ulong_t)&sh7619_data }, |
7bbe150d | 3298 | { "sh771x-ether", (kernel_ulong_t)&sh771x_data }, |
9c3beaab | 3299 | { "sh7724-ether", (kernel_ulong_t)&sh7724_data }, |
f5d12767 | 3300 | { "sh7734-gether", (kernel_ulong_t)&sh7734_data }, |
24549e2a SS |
3301 | { "sh7757-ether", (kernel_ulong_t)&sh7757_data }, |
3302 | { "sh7757-gether", (kernel_ulong_t)&sh7757_data_giga }, | |
f5d12767 | 3303 | { "sh7763-gether", (kernel_ulong_t)&sh7763_data }, |
db893473 | 3304 | { "r7s72100-ether", (kernel_ulong_t)&r7s72100_data }, |
e5c9b4cd | 3305 | { "r8a7740-gether", (kernel_ulong_t)&r8a7740_data }, |
589ebdef | 3306 | { "r8a777x-ether", (kernel_ulong_t)&r8a777x_data }, |
94a12b15 SS |
3307 | { "r8a7790-ether", (kernel_ulong_t)&r8a779x_data }, |
3308 | { "r8a7791-ether", (kernel_ulong_t)&r8a779x_data }, | |
9488e1e5 | 3309 | { "r8a7793-ether", (kernel_ulong_t)&r8a779x_data }, |
0f76b9d8 | 3310 | { "r8a7794-ether", (kernel_ulong_t)&r8a779x_data }, |
afe391ad SS |
3311 | { } |
3312 | }; | |
3313 | MODULE_DEVICE_TABLE(platform, sh_eth_id_table); | |
3314 | ||
86a74ff2 NI |
3315 | static struct platform_driver sh_eth_driver = { |
3316 | .probe = sh_eth_drv_probe, | |
3317 | .remove = sh_eth_drv_remove, | |
afe391ad | 3318 | .id_table = sh_eth_id_table, |
86a74ff2 NI |
3319 | .driver = { |
3320 | .name = CARDNAME, | |
540ad1b8 | 3321 | .pm = SH_ETH_PM_OPS, |
b356e978 | 3322 | .of_match_table = of_match_ptr(sh_eth_match_table), |
86a74ff2 NI |
3323 | }, |
3324 | }; | |
3325 | ||
db62f684 | 3326 | module_platform_driver(sh_eth_driver); |
86a74ff2 NI |
3327 | |
3328 | MODULE_AUTHOR("Nobuhiro Iwamatsu, Yoshihiro Shimoda"); | |
3329 | MODULE_DESCRIPTION("Renesas SuperH Ethernet driver"); | |
3330 | MODULE_LICENSE("GPL v2"); |