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Commit | Line | Data |
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128296fc | 1 | /* SuperH Ethernet device driver |
86a74ff2 | 2 | * |
f0e81fec | 3 | * Copyright (C) 2006-2012 Nobuhiro Iwamatsu |
b356e978 SS |
4 | * Copyright (C) 2008-2014 Renesas Solutions Corp. |
5 | * Copyright (C) 2013-2014 Cogent Embedded, Inc. | |
702eca02 | 6 | * Copyright (C) 2014 Codethink Limited |
86a74ff2 NI |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms and conditions of the GNU General Public License, | |
10 | * version 2, as published by the Free Software Foundation. | |
11 | * | |
12 | * This program is distributed in the hope it will be useful, but WITHOUT | |
13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
15 | * more details. | |
86a74ff2 NI |
16 | * |
17 | * The full GNU General Public License is included in this distribution in | |
18 | * the file called "COPYING". | |
19 | */ | |
20 | ||
0654011d YS |
21 | #include <linux/module.h> |
22 | #include <linux/kernel.h> | |
23 | #include <linux/spinlock.h> | |
6a27cded | 24 | #include <linux/interrupt.h> |
86a74ff2 NI |
25 | #include <linux/dma-mapping.h> |
26 | #include <linux/etherdevice.h> | |
27 | #include <linux/delay.h> | |
28 | #include <linux/platform_device.h> | |
29 | #include <linux/mdio-bitbang.h> | |
30 | #include <linux/netdevice.h> | |
b356e978 SS |
31 | #include <linux/of.h> |
32 | #include <linux/of_device.h> | |
33 | #include <linux/of_irq.h> | |
34 | #include <linux/of_net.h> | |
86a74ff2 NI |
35 | #include <linux/phy.h> |
36 | #include <linux/cache.h> | |
37 | #include <linux/io.h> | |
bcd5149d | 38 | #include <linux/pm_runtime.h> |
5a0e3ad6 | 39 | #include <linux/slab.h> |
dc19e4e5 | 40 | #include <linux/ethtool.h> |
fdb37a7f | 41 | #include <linux/if_vlan.h> |
f0e81fec | 42 | #include <linux/clk.h> |
d4fa0e35 | 43 | #include <linux/sh_eth.h> |
702eca02 | 44 | #include <linux/of_mdio.h> |
86a74ff2 NI |
45 | |
46 | #include "sh_eth.h" | |
47 | ||
dc19e4e5 NI |
48 | #define SH_ETH_DEF_MSG_ENABLE \ |
49 | (NETIF_MSG_LINK | \ | |
50 | NETIF_MSG_TIMER | \ | |
51 | NETIF_MSG_RX_ERR| \ | |
52 | NETIF_MSG_TX_ERR) | |
53 | ||
c0013f6f SS |
54 | static const u16 sh_eth_offset_gigabit[SH_ETH_MAX_REGISTER_OFFSET] = { |
55 | [EDSR] = 0x0000, | |
56 | [EDMR] = 0x0400, | |
57 | [EDTRR] = 0x0408, | |
58 | [EDRRR] = 0x0410, | |
59 | [EESR] = 0x0428, | |
60 | [EESIPR] = 0x0430, | |
61 | [TDLAR] = 0x0010, | |
62 | [TDFAR] = 0x0014, | |
63 | [TDFXR] = 0x0018, | |
64 | [TDFFR] = 0x001c, | |
65 | [RDLAR] = 0x0030, | |
66 | [RDFAR] = 0x0034, | |
67 | [RDFXR] = 0x0038, | |
68 | [RDFFR] = 0x003c, | |
69 | [TRSCER] = 0x0438, | |
70 | [RMFCR] = 0x0440, | |
71 | [TFTR] = 0x0448, | |
72 | [FDR] = 0x0450, | |
73 | [RMCR] = 0x0458, | |
74 | [RPADIR] = 0x0460, | |
75 | [FCFTR] = 0x0468, | |
76 | [CSMR] = 0x04E4, | |
77 | ||
78 | [ECMR] = 0x0500, | |
79 | [ECSR] = 0x0510, | |
80 | [ECSIPR] = 0x0518, | |
81 | [PIR] = 0x0520, | |
82 | [PSR] = 0x0528, | |
83 | [PIPR] = 0x052c, | |
84 | [RFLR] = 0x0508, | |
85 | [APR] = 0x0554, | |
86 | [MPR] = 0x0558, | |
87 | [PFTCR] = 0x055c, | |
88 | [PFRCR] = 0x0560, | |
89 | [TPAUSER] = 0x0564, | |
90 | [GECMR] = 0x05b0, | |
91 | [BCULR] = 0x05b4, | |
92 | [MAHR] = 0x05c0, | |
93 | [MALR] = 0x05c8, | |
94 | [TROCR] = 0x0700, | |
95 | [CDCR] = 0x0708, | |
96 | [LCCR] = 0x0710, | |
97 | [CEFCR] = 0x0740, | |
98 | [FRECR] = 0x0748, | |
99 | [TSFRCR] = 0x0750, | |
100 | [TLFRCR] = 0x0758, | |
101 | [RFCR] = 0x0760, | |
102 | [CERCR] = 0x0768, | |
103 | [CEECR] = 0x0770, | |
104 | [MAFCR] = 0x0778, | |
105 | [RMII_MII] = 0x0790, | |
106 | ||
107 | [ARSTR] = 0x0000, | |
108 | [TSU_CTRST] = 0x0004, | |
109 | [TSU_FWEN0] = 0x0010, | |
110 | [TSU_FWEN1] = 0x0014, | |
111 | [TSU_FCM] = 0x0018, | |
112 | [TSU_BSYSL0] = 0x0020, | |
113 | [TSU_BSYSL1] = 0x0024, | |
114 | [TSU_PRISL0] = 0x0028, | |
115 | [TSU_PRISL1] = 0x002c, | |
116 | [TSU_FWSL0] = 0x0030, | |
117 | [TSU_FWSL1] = 0x0034, | |
118 | [TSU_FWSLC] = 0x0038, | |
119 | [TSU_QTAG0] = 0x0040, | |
120 | [TSU_QTAG1] = 0x0044, | |
121 | [TSU_FWSR] = 0x0050, | |
122 | [TSU_FWINMK] = 0x0054, | |
123 | [TSU_ADQT0] = 0x0048, | |
124 | [TSU_ADQT1] = 0x004c, | |
125 | [TSU_VTAG0] = 0x0058, | |
126 | [TSU_VTAG1] = 0x005c, | |
127 | [TSU_ADSBSY] = 0x0060, | |
128 | [TSU_TEN] = 0x0064, | |
129 | [TSU_POST1] = 0x0070, | |
130 | [TSU_POST2] = 0x0074, | |
131 | [TSU_POST3] = 0x0078, | |
132 | [TSU_POST4] = 0x007c, | |
133 | [TSU_ADRH0] = 0x0100, | |
134 | [TSU_ADRL0] = 0x0104, | |
135 | [TSU_ADRH31] = 0x01f8, | |
136 | [TSU_ADRL31] = 0x01fc, | |
137 | ||
138 | [TXNLCR0] = 0x0080, | |
139 | [TXALCR0] = 0x0084, | |
140 | [RXNLCR0] = 0x0088, | |
141 | [RXALCR0] = 0x008c, | |
142 | [FWNLCR0] = 0x0090, | |
143 | [FWALCR0] = 0x0094, | |
144 | [TXNLCR1] = 0x00a0, | |
145 | [TXALCR1] = 0x00a0, | |
146 | [RXNLCR1] = 0x00a8, | |
147 | [RXALCR1] = 0x00ac, | |
148 | [FWNLCR1] = 0x00b0, | |
149 | [FWALCR1] = 0x00b4, | |
150 | }; | |
151 | ||
db893473 SH |
152 | static const u16 sh_eth_offset_fast_rz[SH_ETH_MAX_REGISTER_OFFSET] = { |
153 | [EDSR] = 0x0000, | |
154 | [EDMR] = 0x0400, | |
155 | [EDTRR] = 0x0408, | |
156 | [EDRRR] = 0x0410, | |
157 | [EESR] = 0x0428, | |
158 | [EESIPR] = 0x0430, | |
159 | [TDLAR] = 0x0010, | |
160 | [TDFAR] = 0x0014, | |
161 | [TDFXR] = 0x0018, | |
162 | [TDFFR] = 0x001c, | |
163 | [RDLAR] = 0x0030, | |
164 | [RDFAR] = 0x0034, | |
165 | [RDFXR] = 0x0038, | |
166 | [RDFFR] = 0x003c, | |
167 | [TRSCER] = 0x0438, | |
168 | [RMFCR] = 0x0440, | |
169 | [TFTR] = 0x0448, | |
170 | [FDR] = 0x0450, | |
171 | [RMCR] = 0x0458, | |
172 | [RPADIR] = 0x0460, | |
173 | [FCFTR] = 0x0468, | |
174 | [CSMR] = 0x04E4, | |
175 | ||
176 | [ECMR] = 0x0500, | |
177 | [RFLR] = 0x0508, | |
178 | [ECSR] = 0x0510, | |
179 | [ECSIPR] = 0x0518, | |
180 | [PIR] = 0x0520, | |
181 | [APR] = 0x0554, | |
182 | [MPR] = 0x0558, | |
183 | [PFTCR] = 0x055c, | |
184 | [PFRCR] = 0x0560, | |
185 | [TPAUSER] = 0x0564, | |
186 | [MAHR] = 0x05c0, | |
187 | [MALR] = 0x05c8, | |
188 | [CEFCR] = 0x0740, | |
189 | [FRECR] = 0x0748, | |
190 | [TSFRCR] = 0x0750, | |
191 | [TLFRCR] = 0x0758, | |
192 | [RFCR] = 0x0760, | |
193 | [MAFCR] = 0x0778, | |
194 | ||
195 | [ARSTR] = 0x0000, | |
196 | [TSU_CTRST] = 0x0004, | |
197 | [TSU_VTAG0] = 0x0058, | |
198 | [TSU_ADSBSY] = 0x0060, | |
199 | [TSU_TEN] = 0x0064, | |
200 | [TSU_ADRH0] = 0x0100, | |
201 | [TSU_ADRL0] = 0x0104, | |
202 | [TSU_ADRH31] = 0x01f8, | |
203 | [TSU_ADRL31] = 0x01fc, | |
204 | ||
205 | [TXNLCR0] = 0x0080, | |
206 | [TXALCR0] = 0x0084, | |
207 | [RXNLCR0] = 0x0088, | |
208 | [RXALCR0] = 0x008C, | |
209 | }; | |
210 | ||
a3f109bd SS |
211 | static const u16 sh_eth_offset_fast_rcar[SH_ETH_MAX_REGISTER_OFFSET] = { |
212 | [ECMR] = 0x0300, | |
213 | [RFLR] = 0x0308, | |
214 | [ECSR] = 0x0310, | |
215 | [ECSIPR] = 0x0318, | |
216 | [PIR] = 0x0320, | |
217 | [PSR] = 0x0328, | |
218 | [RDMLR] = 0x0340, | |
219 | [IPGR] = 0x0350, | |
220 | [APR] = 0x0354, | |
221 | [MPR] = 0x0358, | |
222 | [RFCF] = 0x0360, | |
223 | [TPAUSER] = 0x0364, | |
224 | [TPAUSECR] = 0x0368, | |
225 | [MAHR] = 0x03c0, | |
226 | [MALR] = 0x03c8, | |
227 | [TROCR] = 0x03d0, | |
228 | [CDCR] = 0x03d4, | |
229 | [LCCR] = 0x03d8, | |
230 | [CNDCR] = 0x03dc, | |
231 | [CEFCR] = 0x03e4, | |
232 | [FRECR] = 0x03e8, | |
233 | [TSFRCR] = 0x03ec, | |
234 | [TLFRCR] = 0x03f0, | |
235 | [RFCR] = 0x03f4, | |
236 | [MAFCR] = 0x03f8, | |
237 | ||
238 | [EDMR] = 0x0200, | |
239 | [EDTRR] = 0x0208, | |
240 | [EDRRR] = 0x0210, | |
241 | [TDLAR] = 0x0218, | |
242 | [RDLAR] = 0x0220, | |
243 | [EESR] = 0x0228, | |
244 | [EESIPR] = 0x0230, | |
245 | [TRSCER] = 0x0238, | |
246 | [RMFCR] = 0x0240, | |
247 | [TFTR] = 0x0248, | |
248 | [FDR] = 0x0250, | |
249 | [RMCR] = 0x0258, | |
250 | [TFUCR] = 0x0264, | |
251 | [RFOCR] = 0x0268, | |
55754f19 | 252 | [RMIIMODE] = 0x026c, |
a3f109bd SS |
253 | [FCFTR] = 0x0270, |
254 | [TRIMD] = 0x027c, | |
255 | }; | |
256 | ||
c0013f6f SS |
257 | static const u16 sh_eth_offset_fast_sh4[SH_ETH_MAX_REGISTER_OFFSET] = { |
258 | [ECMR] = 0x0100, | |
259 | [RFLR] = 0x0108, | |
260 | [ECSR] = 0x0110, | |
261 | [ECSIPR] = 0x0118, | |
262 | [PIR] = 0x0120, | |
263 | [PSR] = 0x0128, | |
264 | [RDMLR] = 0x0140, | |
265 | [IPGR] = 0x0150, | |
266 | [APR] = 0x0154, | |
267 | [MPR] = 0x0158, | |
268 | [TPAUSER] = 0x0164, | |
269 | [RFCF] = 0x0160, | |
270 | [TPAUSECR] = 0x0168, | |
271 | [BCFRR] = 0x016c, | |
272 | [MAHR] = 0x01c0, | |
273 | [MALR] = 0x01c8, | |
274 | [TROCR] = 0x01d0, | |
275 | [CDCR] = 0x01d4, | |
276 | [LCCR] = 0x01d8, | |
277 | [CNDCR] = 0x01dc, | |
278 | [CEFCR] = 0x01e4, | |
279 | [FRECR] = 0x01e8, | |
280 | [TSFRCR] = 0x01ec, | |
281 | [TLFRCR] = 0x01f0, | |
282 | [RFCR] = 0x01f4, | |
283 | [MAFCR] = 0x01f8, | |
284 | [RTRATE] = 0x01fc, | |
285 | ||
286 | [EDMR] = 0x0000, | |
287 | [EDTRR] = 0x0008, | |
288 | [EDRRR] = 0x0010, | |
289 | [TDLAR] = 0x0018, | |
290 | [RDLAR] = 0x0020, | |
291 | [EESR] = 0x0028, | |
292 | [EESIPR] = 0x0030, | |
293 | [TRSCER] = 0x0038, | |
294 | [RMFCR] = 0x0040, | |
295 | [TFTR] = 0x0048, | |
296 | [FDR] = 0x0050, | |
297 | [RMCR] = 0x0058, | |
298 | [TFUCR] = 0x0064, | |
299 | [RFOCR] = 0x0068, | |
300 | [FCFTR] = 0x0070, | |
301 | [RPADIR] = 0x0078, | |
302 | [TRIMD] = 0x007c, | |
303 | [RBWAR] = 0x00c8, | |
304 | [RDFAR] = 0x00cc, | |
305 | [TBRAR] = 0x00d4, | |
306 | [TDFAR] = 0x00d8, | |
307 | }; | |
308 | ||
309 | static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = { | |
310 | [ECMR] = 0x0160, | |
311 | [ECSR] = 0x0164, | |
312 | [ECSIPR] = 0x0168, | |
313 | [PIR] = 0x016c, | |
314 | [MAHR] = 0x0170, | |
315 | [MALR] = 0x0174, | |
316 | [RFLR] = 0x0178, | |
317 | [PSR] = 0x017c, | |
318 | [TROCR] = 0x0180, | |
319 | [CDCR] = 0x0184, | |
320 | [LCCR] = 0x0188, | |
321 | [CNDCR] = 0x018c, | |
322 | [CEFCR] = 0x0194, | |
323 | [FRECR] = 0x0198, | |
324 | [TSFRCR] = 0x019c, | |
325 | [TLFRCR] = 0x01a0, | |
326 | [RFCR] = 0x01a4, | |
327 | [MAFCR] = 0x01a8, | |
328 | [IPGR] = 0x01b4, | |
329 | [APR] = 0x01b8, | |
330 | [MPR] = 0x01bc, | |
331 | [TPAUSER] = 0x01c4, | |
332 | [BCFR] = 0x01cc, | |
333 | ||
334 | [ARSTR] = 0x0000, | |
335 | [TSU_CTRST] = 0x0004, | |
336 | [TSU_FWEN0] = 0x0010, | |
337 | [TSU_FWEN1] = 0x0014, | |
338 | [TSU_FCM] = 0x0018, | |
339 | [TSU_BSYSL0] = 0x0020, | |
340 | [TSU_BSYSL1] = 0x0024, | |
341 | [TSU_PRISL0] = 0x0028, | |
342 | [TSU_PRISL1] = 0x002c, | |
343 | [TSU_FWSL0] = 0x0030, | |
344 | [TSU_FWSL1] = 0x0034, | |
345 | [TSU_FWSLC] = 0x0038, | |
346 | [TSU_QTAGM0] = 0x0040, | |
347 | [TSU_QTAGM1] = 0x0044, | |
348 | [TSU_ADQT0] = 0x0048, | |
349 | [TSU_ADQT1] = 0x004c, | |
350 | [TSU_FWSR] = 0x0050, | |
351 | [TSU_FWINMK] = 0x0054, | |
352 | [TSU_ADSBSY] = 0x0060, | |
353 | [TSU_TEN] = 0x0064, | |
354 | [TSU_POST1] = 0x0070, | |
355 | [TSU_POST2] = 0x0074, | |
356 | [TSU_POST3] = 0x0078, | |
357 | [TSU_POST4] = 0x007c, | |
358 | ||
359 | [TXNLCR0] = 0x0080, | |
360 | [TXALCR0] = 0x0084, | |
361 | [RXNLCR0] = 0x0088, | |
362 | [RXALCR0] = 0x008c, | |
363 | [FWNLCR0] = 0x0090, | |
364 | [FWALCR0] = 0x0094, | |
365 | [TXNLCR1] = 0x00a0, | |
366 | [TXALCR1] = 0x00a0, | |
367 | [RXNLCR1] = 0x00a8, | |
368 | [RXALCR1] = 0x00ac, | |
369 | [FWNLCR1] = 0x00b0, | |
370 | [FWALCR1] = 0x00b4, | |
371 | ||
372 | [TSU_ADRH0] = 0x0100, | |
373 | [TSU_ADRL0] = 0x0104, | |
374 | [TSU_ADRL31] = 0x01fc, | |
375 | }; | |
376 | ||
504c8ca5 | 377 | static bool sh_eth_is_gether(struct sh_eth_private *mdp) |
dabdde9e | 378 | { |
504c8ca5 | 379 | return mdp->reg_offset == sh_eth_offset_gigabit; |
dabdde9e NI |
380 | } |
381 | ||
db893473 SH |
382 | static bool sh_eth_is_rz_fast_ether(struct sh_eth_private *mdp) |
383 | { | |
384 | return mdp->reg_offset == sh_eth_offset_fast_rz; | |
385 | } | |
386 | ||
8e994402 | 387 | static void sh_eth_select_mii(struct net_device *ndev) |
5e7a76be NI |
388 | { |
389 | u32 value = 0x0; | |
390 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
391 | ||
392 | switch (mdp->phy_interface) { | |
393 | case PHY_INTERFACE_MODE_GMII: | |
394 | value = 0x2; | |
395 | break; | |
396 | case PHY_INTERFACE_MODE_MII: | |
397 | value = 0x1; | |
398 | break; | |
399 | case PHY_INTERFACE_MODE_RMII: | |
400 | value = 0x0; | |
401 | break; | |
402 | default: | |
f75f14ec SS |
403 | netdev_warn(ndev, |
404 | "PHY interface mode was not setup. Set to MII.\n"); | |
5e7a76be NI |
405 | value = 0x1; |
406 | break; | |
407 | } | |
408 | ||
409 | sh_eth_write(ndev, value, RMII_MII); | |
410 | } | |
5e7a76be | 411 | |
8e994402 | 412 | static void sh_eth_set_duplex(struct net_device *ndev) |
65ac8851 YS |
413 | { |
414 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
65ac8851 YS |
415 | |
416 | if (mdp->duplex) /* Full */ | |
4a55530f | 417 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); |
65ac8851 | 418 | else /* Half */ |
4a55530f | 419 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); |
65ac8851 YS |
420 | } |
421 | ||
04b0ed2a | 422 | /* There is CPU dependent code */ |
589ebdef | 423 | static void sh_eth_set_rate_r8a777x(struct net_device *ndev) |
65ac8851 YS |
424 | { |
425 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
d0418bb7 | 426 | |
a3f109bd SS |
427 | switch (mdp->speed) { |
428 | case 10: /* 10BASE */ | |
429 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_ELB, ECMR); | |
430 | break; | |
431 | case 100:/* 100BASE */ | |
432 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_ELB, ECMR); | |
433 | break; | |
434 | default: | |
435 | break; | |
436 | } | |
437 | } | |
438 | ||
674853b2 | 439 | /* R8A7778/9 */ |
589ebdef | 440 | static struct sh_eth_cpu_data r8a777x_data = { |
a3f109bd | 441 | .set_duplex = sh_eth_set_duplex, |
589ebdef | 442 | .set_rate = sh_eth_set_rate_r8a777x, |
a3f109bd | 443 | |
a3153d8c SS |
444 | .register_type = SH_ETH_REG_FAST_RCAR, |
445 | ||
a3f109bd SS |
446 | .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, |
447 | .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, | |
448 | .eesipr_value = 0x01ff009f, | |
449 | ||
450 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
ca8c3585 SS |
451 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | |
452 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
453 | EESR_ECI, | |
a3f109bd SS |
454 | |
455 | .apr = 1, | |
456 | .mpr = 1, | |
457 | .tpauser = 1, | |
458 | .hw_swap = 1, | |
459 | }; | |
a3f109bd | 460 | |
94a12b15 SS |
461 | /* R8A7790/1 */ |
462 | static struct sh_eth_cpu_data r8a779x_data = { | |
e18dbf7e SH |
463 | .set_duplex = sh_eth_set_duplex, |
464 | .set_rate = sh_eth_set_rate_r8a777x, | |
465 | ||
a3153d8c SS |
466 | .register_type = SH_ETH_REG_FAST_RCAR, |
467 | ||
e18dbf7e SH |
468 | .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, |
469 | .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, | |
470 | .eesipr_value = 0x01ff009f, | |
471 | ||
472 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
ba361cb3 LP |
473 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | |
474 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
475 | EESR_ECI, | |
e18dbf7e SH |
476 | |
477 | .apr = 1, | |
478 | .mpr = 1, | |
479 | .tpauser = 1, | |
480 | .hw_swap = 1, | |
481 | .rmiimode = 1, | |
fd9af07c | 482 | .shift_rd0 = 1, |
e18dbf7e SH |
483 | }; |
484 | ||
9c3beaab | 485 | static void sh_eth_set_rate_sh7724(struct net_device *ndev) |
a3f109bd SS |
486 | { |
487 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
65ac8851 YS |
488 | |
489 | switch (mdp->speed) { | |
490 | case 10: /* 10BASE */ | |
a3f109bd | 491 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_RTM, ECMR); |
65ac8851 YS |
492 | break; |
493 | case 100:/* 100BASE */ | |
a3f109bd | 494 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_RTM, ECMR); |
65ac8851 YS |
495 | break; |
496 | default: | |
497 | break; | |
498 | } | |
499 | } | |
500 | ||
501 | /* SH7724 */ | |
9c3beaab | 502 | static struct sh_eth_cpu_data sh7724_data = { |
65ac8851 | 503 | .set_duplex = sh_eth_set_duplex, |
9c3beaab | 504 | .set_rate = sh_eth_set_rate_sh7724, |
65ac8851 | 505 | |
a3153d8c SS |
506 | .register_type = SH_ETH_REG_FAST_SH4, |
507 | ||
65ac8851 YS |
508 | .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, |
509 | .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, | |
a80c3de7 | 510 | .eesipr_value = 0x01ff009f, |
65ac8851 YS |
511 | |
512 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
ca8c3585 SS |
513 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | |
514 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
515 | EESR_ECI, | |
65ac8851 YS |
516 | |
517 | .apr = 1, | |
518 | .mpr = 1, | |
519 | .tpauser = 1, | |
520 | .hw_swap = 1, | |
503914cf MD |
521 | .rpadir = 1, |
522 | .rpadir_value = 0x00020000, /* NET_IP_ALIGN assumed to be 2 */ | |
65ac8851 | 523 | }; |
5cee1d37 | 524 | |
24549e2a | 525 | static void sh_eth_set_rate_sh7757(struct net_device *ndev) |
f29a3d04 YS |
526 | { |
527 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
f29a3d04 YS |
528 | |
529 | switch (mdp->speed) { | |
530 | case 10: /* 10BASE */ | |
4a55530f | 531 | sh_eth_write(ndev, 0, RTRATE); |
f29a3d04 YS |
532 | break; |
533 | case 100:/* 100BASE */ | |
4a55530f | 534 | sh_eth_write(ndev, 1, RTRATE); |
f29a3d04 YS |
535 | break; |
536 | default: | |
537 | break; | |
538 | } | |
539 | } | |
540 | ||
541 | /* SH7757 */ | |
24549e2a SS |
542 | static struct sh_eth_cpu_data sh7757_data = { |
543 | .set_duplex = sh_eth_set_duplex, | |
544 | .set_rate = sh_eth_set_rate_sh7757, | |
f29a3d04 | 545 | |
a3153d8c SS |
546 | .register_type = SH_ETH_REG_FAST_SH4, |
547 | ||
f29a3d04 | 548 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, |
305a3388 | 549 | .rmcr_value = RMCR_RNC, |
f29a3d04 YS |
550 | |
551 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
ca8c3585 SS |
552 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE | |
553 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
554 | EESR_ECI, | |
f29a3d04 | 555 | |
5b3dfd13 | 556 | .irq_flags = IRQF_SHARED, |
f29a3d04 YS |
557 | .apr = 1, |
558 | .mpr = 1, | |
559 | .tpauser = 1, | |
560 | .hw_swap = 1, | |
561 | .no_ade = 1, | |
2e98e797 YS |
562 | .rpadir = 1, |
563 | .rpadir_value = 2 << 16, | |
f29a3d04 | 564 | }; |
65ac8851 | 565 | |
e403d295 | 566 | #define SH_GIGA_ETH_BASE 0xfee00000UL |
8fcd4961 YS |
567 | #define GIGA_MALR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c8) |
568 | #define GIGA_MAHR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c0) | |
569 | static void sh_eth_chip_reset_giga(struct net_device *ndev) | |
570 | { | |
571 | int i; | |
572 | unsigned long mahr[2], malr[2]; | |
573 | ||
574 | /* save MAHR and MALR */ | |
575 | for (i = 0; i < 2; i++) { | |
ae70644d YS |
576 | malr[i] = ioread32((void *)GIGA_MALR(i)); |
577 | mahr[i] = ioread32((void *)GIGA_MAHR(i)); | |
8fcd4961 YS |
578 | } |
579 | ||
580 | /* reset device */ | |
ae70644d | 581 | iowrite32(ARSTR_ARSTR, (void *)(SH_GIGA_ETH_BASE + 0x1800)); |
8fcd4961 YS |
582 | mdelay(1); |
583 | ||
584 | /* restore MAHR and MALR */ | |
585 | for (i = 0; i < 2; i++) { | |
ae70644d YS |
586 | iowrite32(malr[i], (void *)GIGA_MALR(i)); |
587 | iowrite32(mahr[i], (void *)GIGA_MAHR(i)); | |
8fcd4961 YS |
588 | } |
589 | } | |
590 | ||
8fcd4961 YS |
591 | static void sh_eth_set_rate_giga(struct net_device *ndev) |
592 | { | |
593 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
594 | ||
595 | switch (mdp->speed) { | |
596 | case 10: /* 10BASE */ | |
597 | sh_eth_write(ndev, 0x00000000, GECMR); | |
598 | break; | |
599 | case 100:/* 100BASE */ | |
600 | sh_eth_write(ndev, 0x00000010, GECMR); | |
601 | break; | |
602 | case 1000: /* 1000BASE */ | |
603 | sh_eth_write(ndev, 0x00000020, GECMR); | |
604 | break; | |
605 | default: | |
606 | break; | |
607 | } | |
608 | } | |
609 | ||
610 | /* SH7757(GETHERC) */ | |
24549e2a | 611 | static struct sh_eth_cpu_data sh7757_data_giga = { |
8fcd4961 | 612 | .chip_reset = sh_eth_chip_reset_giga, |
04b0ed2a | 613 | .set_duplex = sh_eth_set_duplex, |
8fcd4961 YS |
614 | .set_rate = sh_eth_set_rate_giga, |
615 | ||
a3153d8c SS |
616 | .register_type = SH_ETH_REG_GIGABIT, |
617 | ||
8fcd4961 YS |
618 | .ecsr_value = ECSR_ICD | ECSR_MPD, |
619 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
620 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
621 | ||
622 | .tx_check = EESR_TC1 | EESR_FTC, | |
ca8c3585 SS |
623 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | |
624 | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | | |
625 | EESR_TDE | EESR_ECI, | |
8fcd4961 | 626 | .fdr_value = 0x0000072f, |
305a3388 | 627 | .rmcr_value = RMCR_RNC, |
8fcd4961 | 628 | |
5b3dfd13 | 629 | .irq_flags = IRQF_SHARED, |
8fcd4961 YS |
630 | .apr = 1, |
631 | .mpr = 1, | |
632 | .tpauser = 1, | |
633 | .bculr = 1, | |
634 | .hw_swap = 1, | |
635 | .rpadir = 1, | |
636 | .rpadir_value = 2 << 16, | |
637 | .no_trimd = 1, | |
638 | .no_ade = 1, | |
3acbc971 | 639 | .tsu = 1, |
8fcd4961 YS |
640 | }; |
641 | ||
380af9e3 YS |
642 | static void sh_eth_chip_reset(struct net_device *ndev) |
643 | { | |
4986b996 YS |
644 | struct sh_eth_private *mdp = netdev_priv(ndev); |
645 | ||
380af9e3 | 646 | /* reset device */ |
4986b996 | 647 | sh_eth_tsu_write(mdp, ARSTR_ARSTR, ARSTR); |
380af9e3 YS |
648 | mdelay(1); |
649 | } | |
650 | ||
f5d12767 | 651 | static void sh_eth_set_rate_gether(struct net_device *ndev) |
380af9e3 YS |
652 | { |
653 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
380af9e3 YS |
654 | |
655 | switch (mdp->speed) { | |
656 | case 10: /* 10BASE */ | |
4a55530f | 657 | sh_eth_write(ndev, GECMR_10, GECMR); |
380af9e3 YS |
658 | break; |
659 | case 100:/* 100BASE */ | |
4a55530f | 660 | sh_eth_write(ndev, GECMR_100, GECMR); |
380af9e3 YS |
661 | break; |
662 | case 1000: /* 1000BASE */ | |
4a55530f | 663 | sh_eth_write(ndev, GECMR_1000, GECMR); |
380af9e3 YS |
664 | break; |
665 | default: | |
666 | break; | |
667 | } | |
668 | } | |
669 | ||
f5d12767 SS |
670 | /* SH7734 */ |
671 | static struct sh_eth_cpu_data sh7734_data = { | |
380af9e3 YS |
672 | .chip_reset = sh_eth_chip_reset, |
673 | .set_duplex = sh_eth_set_duplex, | |
f5d12767 SS |
674 | .set_rate = sh_eth_set_rate_gether, |
675 | ||
a3153d8c SS |
676 | .register_type = SH_ETH_REG_GIGABIT, |
677 | ||
f5d12767 SS |
678 | .ecsr_value = ECSR_ICD | ECSR_MPD, |
679 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
680 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
681 | ||
682 | .tx_check = EESR_TC1 | EESR_FTC, | |
ca8c3585 SS |
683 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | |
684 | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | | |
685 | EESR_TDE | EESR_ECI, | |
f5d12767 SS |
686 | |
687 | .apr = 1, | |
688 | .mpr = 1, | |
689 | .tpauser = 1, | |
690 | .bculr = 1, | |
691 | .hw_swap = 1, | |
692 | .no_trimd = 1, | |
693 | .no_ade = 1, | |
694 | .tsu = 1, | |
695 | .hw_crc = 1, | |
696 | .select_mii = 1, | |
697 | }; | |
698 | ||
699 | /* SH7763 */ | |
700 | static struct sh_eth_cpu_data sh7763_data = { | |
701 | .chip_reset = sh_eth_chip_reset, | |
702 | .set_duplex = sh_eth_set_duplex, | |
703 | .set_rate = sh_eth_set_rate_gether, | |
380af9e3 | 704 | |
a3153d8c SS |
705 | .register_type = SH_ETH_REG_GIGABIT, |
706 | ||
380af9e3 YS |
707 | .ecsr_value = ECSR_ICD | ECSR_MPD, |
708 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
709 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
710 | ||
711 | .tx_check = EESR_TC1 | EESR_FTC, | |
128296fc SS |
712 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | |
713 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | | |
380af9e3 | 714 | EESR_ECI, |
380af9e3 YS |
715 | |
716 | .apr = 1, | |
717 | .mpr = 1, | |
718 | .tpauser = 1, | |
719 | .bculr = 1, | |
720 | .hw_swap = 1, | |
380af9e3 YS |
721 | .no_trimd = 1, |
722 | .no_ade = 1, | |
4986b996 | 723 | .tsu = 1, |
5b3dfd13 | 724 | .irq_flags = IRQF_SHARED, |
380af9e3 YS |
725 | }; |
726 | ||
e5c9b4cd | 727 | static void sh_eth_chip_reset_r8a7740(struct net_device *ndev) |
73a0d907 YS |
728 | { |
729 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
73a0d907 YS |
730 | |
731 | /* reset device */ | |
732 | sh_eth_tsu_write(mdp, ARSTR_ARSTR, ARSTR); | |
733 | mdelay(1); | |
734 | ||
5e7a76be | 735 | sh_eth_select_mii(ndev); |
73a0d907 YS |
736 | } |
737 | ||
73a0d907 | 738 | /* R8A7740 */ |
e5c9b4cd SS |
739 | static struct sh_eth_cpu_data r8a7740_data = { |
740 | .chip_reset = sh_eth_chip_reset_r8a7740, | |
73a0d907 | 741 | .set_duplex = sh_eth_set_duplex, |
e5c9b4cd | 742 | .set_rate = sh_eth_set_rate_gether, |
73a0d907 | 743 | |
a3153d8c SS |
744 | .register_type = SH_ETH_REG_GIGABIT, |
745 | ||
73a0d907 YS |
746 | .ecsr_value = ECSR_ICD | ECSR_MPD, |
747 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
748 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
749 | ||
750 | .tx_check = EESR_TC1 | EESR_FTC, | |
ca8c3585 SS |
751 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | |
752 | EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE | | |
753 | EESR_TDE | EESR_ECI, | |
cc23528d | 754 | .fdr_value = 0x0000070f, |
305a3388 | 755 | .rmcr_value = RMCR_RNC, |
73a0d907 YS |
756 | |
757 | .apr = 1, | |
758 | .mpr = 1, | |
759 | .tpauser = 1, | |
760 | .bculr = 1, | |
761 | .hw_swap = 1, | |
cc23528d SH |
762 | .rpadir = 1, |
763 | .rpadir_value = 2 << 16, | |
73a0d907 YS |
764 | .no_trimd = 1, |
765 | .no_ade = 1, | |
766 | .tsu = 1, | |
5e7a76be | 767 | .select_mii = 1, |
ac8025a6 | 768 | .shift_rd0 = 1, |
73a0d907 YS |
769 | }; |
770 | ||
db893473 SH |
771 | /* R7S72100 */ |
772 | static struct sh_eth_cpu_data r7s72100_data = { | |
773 | .chip_reset = sh_eth_chip_reset, | |
774 | .set_duplex = sh_eth_set_duplex, | |
775 | ||
776 | .register_type = SH_ETH_REG_FAST_RZ, | |
777 | ||
778 | .ecsr_value = ECSR_ICD, | |
779 | .ecsipr_value = ECSIPR_ICDIP, | |
780 | .eesipr_value = 0xff7f009f, | |
781 | ||
782 | .tx_check = EESR_TC1 | EESR_FTC, | |
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, | |
786 | .fdr_value = 0x0000070f, | |
787 | .rmcr_value = RMCR_RNC, | |
788 | ||
789 | .no_psr = 1, | |
790 | .apr = 1, | |
791 | .mpr = 1, | |
792 | .tpauser = 1, | |
793 | .hw_swap = 1, | |
794 | .rpadir = 1, | |
795 | .rpadir_value = 2 << 16, | |
796 | .no_trimd = 1, | |
797 | .no_ade = 1, | |
798 | .hw_crc = 1, | |
799 | .tsu = 1, | |
800 | .shift_rd0 = 1, | |
801 | }; | |
802 | ||
c18a79ab | 803 | static struct sh_eth_cpu_data sh7619_data = { |
a3153d8c SS |
804 | .register_type = SH_ETH_REG_FAST_SH3_SH2, |
805 | ||
380af9e3 YS |
806 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, |
807 | ||
808 | .apr = 1, | |
809 | .mpr = 1, | |
810 | .tpauser = 1, | |
811 | .hw_swap = 1, | |
812 | }; | |
7bbe150d SS |
813 | |
814 | static struct sh_eth_cpu_data sh771x_data = { | |
a3153d8c SS |
815 | .register_type = SH_ETH_REG_FAST_SH3_SH2, |
816 | ||
380af9e3 | 817 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, |
4986b996 | 818 | .tsu = 1, |
380af9e3 | 819 | }; |
380af9e3 YS |
820 | |
821 | static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd) | |
822 | { | |
823 | if (!cd->ecsr_value) | |
824 | cd->ecsr_value = DEFAULT_ECSR_INIT; | |
825 | ||
826 | if (!cd->ecsipr_value) | |
827 | cd->ecsipr_value = DEFAULT_ECSIPR_INIT; | |
828 | ||
829 | if (!cd->fcftr_value) | |
128296fc | 830 | cd->fcftr_value = DEFAULT_FIFO_F_D_RFF | |
380af9e3 YS |
831 | DEFAULT_FIFO_F_D_RFD; |
832 | ||
833 | if (!cd->fdr_value) | |
834 | cd->fdr_value = DEFAULT_FDR_INIT; | |
835 | ||
836 | if (!cd->rmcr_value) | |
837 | cd->rmcr_value = DEFAULT_RMCR_VALUE; | |
838 | ||
839 | if (!cd->tx_check) | |
840 | cd->tx_check = DEFAULT_TX_CHECK; | |
841 | ||
842 | if (!cd->eesr_err_check) | |
843 | cd->eesr_err_check = DEFAULT_EESR_ERR_CHECK; | |
380af9e3 YS |
844 | } |
845 | ||
5cee1d37 NI |
846 | static int sh_eth_check_reset(struct net_device *ndev) |
847 | { | |
848 | int ret = 0; | |
849 | int cnt = 100; | |
850 | ||
851 | while (cnt > 0) { | |
852 | if (!(sh_eth_read(ndev, EDMR) & 0x3)) | |
853 | break; | |
854 | mdelay(1); | |
855 | cnt--; | |
856 | } | |
9f8c4265 | 857 | if (cnt <= 0) { |
f75f14ec | 858 | netdev_err(ndev, "Device reset failed\n"); |
5cee1d37 NI |
859 | ret = -ETIMEDOUT; |
860 | } | |
861 | return ret; | |
380af9e3 | 862 | } |
dabdde9e NI |
863 | |
864 | static int sh_eth_reset(struct net_device *ndev) | |
865 | { | |
866 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
867 | int ret = 0; | |
868 | ||
db893473 | 869 | if (sh_eth_is_gether(mdp) || sh_eth_is_rz_fast_ether(mdp)) { |
dabdde9e NI |
870 | sh_eth_write(ndev, EDSR_ENALL, EDSR); |
871 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, | |
872 | EDMR); | |
873 | ||
874 | ret = sh_eth_check_reset(ndev); | |
875 | if (ret) | |
876 | goto out; | |
877 | ||
878 | /* Table Init */ | |
879 | sh_eth_write(ndev, 0x0, TDLAR); | |
880 | sh_eth_write(ndev, 0x0, TDFAR); | |
881 | sh_eth_write(ndev, 0x0, TDFXR); | |
882 | sh_eth_write(ndev, 0x0, TDFFR); | |
883 | sh_eth_write(ndev, 0x0, RDLAR); | |
884 | sh_eth_write(ndev, 0x0, RDFAR); | |
885 | sh_eth_write(ndev, 0x0, RDFXR); | |
886 | sh_eth_write(ndev, 0x0, RDFFR); | |
887 | ||
888 | /* Reset HW CRC register */ | |
889 | if (mdp->cd->hw_crc) | |
890 | sh_eth_write(ndev, 0x0, CSMR); | |
891 | ||
892 | /* Select MII mode */ | |
893 | if (mdp->cd->select_mii) | |
894 | sh_eth_select_mii(ndev); | |
895 | } else { | |
896 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, | |
897 | EDMR); | |
898 | mdelay(3); | |
899 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, | |
900 | EDMR); | |
901 | } | |
902 | ||
903 | out: | |
904 | return ret; | |
905 | } | |
380af9e3 | 906 | |
73a0d907 | 907 | #if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE) |
380af9e3 YS |
908 | static void sh_eth_set_receive_align(struct sk_buff *skb) |
909 | { | |
910 | int reserve; | |
911 | ||
912 | reserve = SH4_SKB_RX_ALIGN - ((u32)skb->data & (SH4_SKB_RX_ALIGN - 1)); | |
913 | if (reserve) | |
914 | skb_reserve(skb, reserve); | |
915 | } | |
916 | #else | |
917 | static void sh_eth_set_receive_align(struct sk_buff *skb) | |
918 | { | |
919 | skb_reserve(skb, SH2_SH3_SKB_RX_ALIGN); | |
920 | } | |
921 | #endif | |
922 | ||
923 | ||
71557a37 YS |
924 | /* CPU <-> EDMAC endian convert */ |
925 | static inline __u32 cpu_to_edmac(struct sh_eth_private *mdp, u32 x) | |
926 | { | |
927 | switch (mdp->edmac_endian) { | |
928 | case EDMAC_LITTLE_ENDIAN: | |
929 | return cpu_to_le32(x); | |
930 | case EDMAC_BIG_ENDIAN: | |
931 | return cpu_to_be32(x); | |
932 | } | |
933 | return x; | |
934 | } | |
935 | ||
936 | static inline __u32 edmac_to_cpu(struct sh_eth_private *mdp, u32 x) | |
937 | { | |
938 | switch (mdp->edmac_endian) { | |
939 | case EDMAC_LITTLE_ENDIAN: | |
940 | return le32_to_cpu(x); | |
941 | case EDMAC_BIG_ENDIAN: | |
942 | return be32_to_cpu(x); | |
943 | } | |
944 | return x; | |
945 | } | |
946 | ||
128296fc | 947 | /* Program the hardware MAC address from dev->dev_addr. */ |
86a74ff2 NI |
948 | static void update_mac_address(struct net_device *ndev) |
949 | { | |
4a55530f | 950 | sh_eth_write(ndev, |
128296fc SS |
951 | (ndev->dev_addr[0] << 24) | (ndev->dev_addr[1] << 16) | |
952 | (ndev->dev_addr[2] << 8) | (ndev->dev_addr[3]), MAHR); | |
4a55530f | 953 | sh_eth_write(ndev, |
128296fc | 954 | (ndev->dev_addr[4] << 8) | (ndev->dev_addr[5]), MALR); |
86a74ff2 NI |
955 | } |
956 | ||
128296fc | 957 | /* Get MAC address from SuperH MAC address register |
86a74ff2 NI |
958 | * |
959 | * SuperH's Ethernet device doesn't have 'ROM' to MAC address. | |
960 | * This driver get MAC address that use by bootloader(U-boot or sh-ipl+g). | |
961 | * When you want use this device, you must set MAC address in bootloader. | |
962 | * | |
963 | */ | |
748031f9 | 964 | static void read_mac_address(struct net_device *ndev, unsigned char *mac) |
86a74ff2 | 965 | { |
748031f9 | 966 | if (mac[0] || mac[1] || mac[2] || mac[3] || mac[4] || mac[5]) { |
d458cdf7 | 967 | memcpy(ndev->dev_addr, mac, ETH_ALEN); |
748031f9 | 968 | } else { |
4a55530f YS |
969 | ndev->dev_addr[0] = (sh_eth_read(ndev, MAHR) >> 24); |
970 | ndev->dev_addr[1] = (sh_eth_read(ndev, MAHR) >> 16) & 0xFF; | |
971 | ndev->dev_addr[2] = (sh_eth_read(ndev, MAHR) >> 8) & 0xFF; | |
972 | ndev->dev_addr[3] = (sh_eth_read(ndev, MAHR) & 0xFF); | |
973 | ndev->dev_addr[4] = (sh_eth_read(ndev, MALR) >> 8) & 0xFF; | |
974 | ndev->dev_addr[5] = (sh_eth_read(ndev, MALR) & 0xFF); | |
748031f9 | 975 | } |
86a74ff2 NI |
976 | } |
977 | ||
c5ed5368 YS |
978 | static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp) |
979 | { | |
db893473 | 980 | if (sh_eth_is_gether(mdp) || sh_eth_is_rz_fast_ether(mdp)) |
c5ed5368 YS |
981 | return EDTRR_TRNS_GETHER; |
982 | else | |
983 | return EDTRR_TRNS_ETHER; | |
984 | } | |
985 | ||
86a74ff2 | 986 | struct bb_info { |
ae70644d | 987 | void (*set_gate)(void *addr); |
86a74ff2 | 988 | struct mdiobb_ctrl ctrl; |
ae70644d | 989 | void *addr; |
86a74ff2 NI |
990 | u32 mmd_msk;/* MMD */ |
991 | u32 mdo_msk; | |
992 | u32 mdi_msk; | |
993 | u32 mdc_msk; | |
994 | }; | |
995 | ||
996 | /* PHY bit set */ | |
ae70644d | 997 | static void bb_set(void *addr, u32 msk) |
86a74ff2 | 998 | { |
ae70644d | 999 | iowrite32(ioread32(addr) | msk, addr); |
86a74ff2 NI |
1000 | } |
1001 | ||
1002 | /* PHY bit clear */ | |
ae70644d | 1003 | static void bb_clr(void *addr, u32 msk) |
86a74ff2 | 1004 | { |
ae70644d | 1005 | iowrite32((ioread32(addr) & ~msk), addr); |
86a74ff2 NI |
1006 | } |
1007 | ||
1008 | /* PHY bit read */ | |
ae70644d | 1009 | static int bb_read(void *addr, u32 msk) |
86a74ff2 | 1010 | { |
ae70644d | 1011 | return (ioread32(addr) & msk) != 0; |
86a74ff2 NI |
1012 | } |
1013 | ||
1014 | /* Data I/O pin control */ | |
1015 | static void sh_mmd_ctrl(struct mdiobb_ctrl *ctrl, int bit) | |
1016 | { | |
1017 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
b3017e6a YS |
1018 | |
1019 | if (bitbang->set_gate) | |
1020 | bitbang->set_gate(bitbang->addr); | |
1021 | ||
86a74ff2 NI |
1022 | if (bit) |
1023 | bb_set(bitbang->addr, bitbang->mmd_msk); | |
1024 | else | |
1025 | bb_clr(bitbang->addr, bitbang->mmd_msk); | |
1026 | } | |
1027 | ||
1028 | /* Set bit data*/ | |
1029 | static void sh_set_mdio(struct mdiobb_ctrl *ctrl, int bit) | |
1030 | { | |
1031 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
1032 | ||
b3017e6a YS |
1033 | if (bitbang->set_gate) |
1034 | bitbang->set_gate(bitbang->addr); | |
1035 | ||
86a74ff2 NI |
1036 | if (bit) |
1037 | bb_set(bitbang->addr, bitbang->mdo_msk); | |
1038 | else | |
1039 | bb_clr(bitbang->addr, bitbang->mdo_msk); | |
1040 | } | |
1041 | ||
1042 | /* Get bit data*/ | |
1043 | static int sh_get_mdio(struct mdiobb_ctrl *ctrl) | |
1044 | { | |
1045 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
b3017e6a YS |
1046 | |
1047 | if (bitbang->set_gate) | |
1048 | bitbang->set_gate(bitbang->addr); | |
1049 | ||
86a74ff2 NI |
1050 | return bb_read(bitbang->addr, bitbang->mdi_msk); |
1051 | } | |
1052 | ||
1053 | /* MDC pin control */ | |
1054 | static void sh_mdc_ctrl(struct mdiobb_ctrl *ctrl, int bit) | |
1055 | { | |
1056 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
1057 | ||
b3017e6a YS |
1058 | if (bitbang->set_gate) |
1059 | bitbang->set_gate(bitbang->addr); | |
1060 | ||
86a74ff2 NI |
1061 | if (bit) |
1062 | bb_set(bitbang->addr, bitbang->mdc_msk); | |
1063 | else | |
1064 | bb_clr(bitbang->addr, bitbang->mdc_msk); | |
1065 | } | |
1066 | ||
1067 | /* mdio bus control struct */ | |
1068 | static struct mdiobb_ops bb_ops = { | |
1069 | .owner = THIS_MODULE, | |
1070 | .set_mdc = sh_mdc_ctrl, | |
1071 | .set_mdio_dir = sh_mmd_ctrl, | |
1072 | .set_mdio_data = sh_set_mdio, | |
1073 | .get_mdio_data = sh_get_mdio, | |
1074 | }; | |
1075 | ||
86a74ff2 NI |
1076 | /* free skb and descriptor buffer */ |
1077 | static void sh_eth_ring_free(struct net_device *ndev) | |
1078 | { | |
1079 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1080 | int i; | |
1081 | ||
1082 | /* Free Rx skb ringbuffer */ | |
1083 | if (mdp->rx_skbuff) { | |
525b8075 | 1084 | for (i = 0; i < mdp->num_rx_ring; i++) { |
86a74ff2 NI |
1085 | if (mdp->rx_skbuff[i]) |
1086 | dev_kfree_skb(mdp->rx_skbuff[i]); | |
1087 | } | |
1088 | } | |
1089 | kfree(mdp->rx_skbuff); | |
91c77550 | 1090 | mdp->rx_skbuff = NULL; |
86a74ff2 NI |
1091 | |
1092 | /* Free Tx skb ringbuffer */ | |
1093 | if (mdp->tx_skbuff) { | |
525b8075 | 1094 | for (i = 0; i < mdp->num_tx_ring; i++) { |
86a74ff2 NI |
1095 | if (mdp->tx_skbuff[i]) |
1096 | dev_kfree_skb(mdp->tx_skbuff[i]); | |
1097 | } | |
1098 | } | |
1099 | kfree(mdp->tx_skbuff); | |
91c77550 | 1100 | mdp->tx_skbuff = NULL; |
86a74ff2 NI |
1101 | } |
1102 | ||
1103 | /* format skb and descriptor buffer */ | |
1104 | static void sh_eth_ring_format(struct net_device *ndev) | |
1105 | { | |
1106 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1107 | int i; | |
1108 | struct sk_buff *skb; | |
1109 | struct sh_eth_rxdesc *rxdesc = NULL; | |
1110 | struct sh_eth_txdesc *txdesc = NULL; | |
525b8075 YS |
1111 | int rx_ringsize = sizeof(*rxdesc) * mdp->num_rx_ring; |
1112 | int tx_ringsize = sizeof(*txdesc) * mdp->num_tx_ring; | |
86a74ff2 | 1113 | |
128296fc SS |
1114 | mdp->cur_rx = 0; |
1115 | mdp->cur_tx = 0; | |
1116 | mdp->dirty_rx = 0; | |
1117 | mdp->dirty_tx = 0; | |
86a74ff2 NI |
1118 | |
1119 | memset(mdp->rx_ring, 0, rx_ringsize); | |
1120 | ||
1121 | /* build Rx ring buffer */ | |
525b8075 | 1122 | for (i = 0; i < mdp->num_rx_ring; i++) { |
86a74ff2 NI |
1123 | /* skb */ |
1124 | mdp->rx_skbuff[i] = NULL; | |
dae2e9f4 | 1125 | skb = netdev_alloc_skb(ndev, mdp->rx_buf_sz); |
86a74ff2 NI |
1126 | mdp->rx_skbuff[i] = skb; |
1127 | if (skb == NULL) | |
1128 | break; | |
bb7d92e3 | 1129 | dma_map_single(&ndev->dev, skb->data, mdp->rx_buf_sz, |
128296fc | 1130 | DMA_FROM_DEVICE); |
380af9e3 YS |
1131 | sh_eth_set_receive_align(skb); |
1132 | ||
86a74ff2 NI |
1133 | /* RX descriptor */ |
1134 | rxdesc = &mdp->rx_ring[i]; | |
0029d64a | 1135 | rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4)); |
71557a37 | 1136 | rxdesc->status = cpu_to_edmac(mdp, RD_RACT | RD_RFP); |
86a74ff2 NI |
1137 | |
1138 | /* The size of the buffer is 16 byte boundary. */ | |
0029d64a | 1139 | rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16); |
b0ca2a21 NI |
1140 | /* Rx descriptor address set */ |
1141 | if (i == 0) { | |
4a55530f | 1142 | sh_eth_write(ndev, mdp->rx_desc_dma, RDLAR); |
db893473 SH |
1143 | if (sh_eth_is_gether(mdp) || |
1144 | sh_eth_is_rz_fast_ether(mdp)) | |
c5ed5368 | 1145 | sh_eth_write(ndev, mdp->rx_desc_dma, RDFAR); |
b0ca2a21 | 1146 | } |
86a74ff2 NI |
1147 | } |
1148 | ||
525b8075 | 1149 | mdp->dirty_rx = (u32) (i - mdp->num_rx_ring); |
86a74ff2 NI |
1150 | |
1151 | /* Mark the last entry as wrapping the ring. */ | |
71557a37 | 1152 | rxdesc->status |= cpu_to_edmac(mdp, RD_RDEL); |
86a74ff2 NI |
1153 | |
1154 | memset(mdp->tx_ring, 0, tx_ringsize); | |
1155 | ||
1156 | /* build Tx ring buffer */ | |
525b8075 | 1157 | for (i = 0; i < mdp->num_tx_ring; i++) { |
86a74ff2 NI |
1158 | mdp->tx_skbuff[i] = NULL; |
1159 | txdesc = &mdp->tx_ring[i]; | |
71557a37 | 1160 | txdesc->status = cpu_to_edmac(mdp, TD_TFP); |
86a74ff2 | 1161 | txdesc->buffer_length = 0; |
b0ca2a21 | 1162 | if (i == 0) { |
71557a37 | 1163 | /* Tx descriptor address set */ |
4a55530f | 1164 | sh_eth_write(ndev, mdp->tx_desc_dma, TDLAR); |
db893473 SH |
1165 | if (sh_eth_is_gether(mdp) || |
1166 | sh_eth_is_rz_fast_ether(mdp)) | |
c5ed5368 | 1167 | sh_eth_write(ndev, mdp->tx_desc_dma, TDFAR); |
b0ca2a21 | 1168 | } |
86a74ff2 NI |
1169 | } |
1170 | ||
71557a37 | 1171 | txdesc->status |= cpu_to_edmac(mdp, TD_TDLE); |
86a74ff2 NI |
1172 | } |
1173 | ||
1174 | /* Get skb and descriptor buffer */ | |
1175 | static int sh_eth_ring_init(struct net_device *ndev) | |
1176 | { | |
1177 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1178 | int rx_ringsize, tx_ringsize, ret = 0; | |
1179 | ||
128296fc | 1180 | /* +26 gets the maximum ethernet encapsulation, +7 & ~7 because the |
86a74ff2 NI |
1181 | * card needs room to do 8 byte alignment, +2 so we can reserve |
1182 | * the first 2 bytes, and +16 gets room for the status word from the | |
1183 | * card. | |
1184 | */ | |
1185 | mdp->rx_buf_sz = (ndev->mtu <= 1492 ? PKT_BUF_SZ : | |
1186 | (((ndev->mtu + 26 + 7) & ~7) + 2 + 16)); | |
503914cf MD |
1187 | if (mdp->cd->rpadir) |
1188 | mdp->rx_buf_sz += NET_IP_ALIGN; | |
86a74ff2 NI |
1189 | |
1190 | /* Allocate RX and TX skb rings */ | |
b2adaca9 JP |
1191 | mdp->rx_skbuff = kmalloc_array(mdp->num_rx_ring, |
1192 | sizeof(*mdp->rx_skbuff), GFP_KERNEL); | |
86a74ff2 | 1193 | if (!mdp->rx_skbuff) { |
86a74ff2 NI |
1194 | ret = -ENOMEM; |
1195 | return ret; | |
1196 | } | |
1197 | ||
b2adaca9 JP |
1198 | mdp->tx_skbuff = kmalloc_array(mdp->num_tx_ring, |
1199 | sizeof(*mdp->tx_skbuff), GFP_KERNEL); | |
86a74ff2 | 1200 | if (!mdp->tx_skbuff) { |
86a74ff2 NI |
1201 | ret = -ENOMEM; |
1202 | goto skb_ring_free; | |
1203 | } | |
1204 | ||
1205 | /* Allocate all Rx descriptors. */ | |
525b8075 | 1206 | rx_ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring; |
86a74ff2 | 1207 | mdp->rx_ring = dma_alloc_coherent(NULL, rx_ringsize, &mdp->rx_desc_dma, |
d0320f75 | 1208 | GFP_KERNEL); |
86a74ff2 | 1209 | if (!mdp->rx_ring) { |
86a74ff2 NI |
1210 | ret = -ENOMEM; |
1211 | goto desc_ring_free; | |
1212 | } | |
1213 | ||
1214 | mdp->dirty_rx = 0; | |
1215 | ||
1216 | /* Allocate all Tx descriptors. */ | |
525b8075 | 1217 | tx_ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring; |
86a74ff2 | 1218 | mdp->tx_ring = dma_alloc_coherent(NULL, tx_ringsize, &mdp->tx_desc_dma, |
d0320f75 | 1219 | GFP_KERNEL); |
86a74ff2 | 1220 | if (!mdp->tx_ring) { |
86a74ff2 NI |
1221 | ret = -ENOMEM; |
1222 | goto desc_ring_free; | |
1223 | } | |
1224 | return ret; | |
1225 | ||
1226 | desc_ring_free: | |
1227 | /* free DMA buffer */ | |
1228 | dma_free_coherent(NULL, rx_ringsize, mdp->rx_ring, mdp->rx_desc_dma); | |
1229 | ||
1230 | skb_ring_free: | |
1231 | /* Free Rx and Tx skb ring buffer */ | |
1232 | sh_eth_ring_free(ndev); | |
91c77550 YS |
1233 | mdp->tx_ring = NULL; |
1234 | mdp->rx_ring = NULL; | |
86a74ff2 NI |
1235 | |
1236 | return ret; | |
1237 | } | |
1238 | ||
91c77550 YS |
1239 | static void sh_eth_free_dma_buffer(struct sh_eth_private *mdp) |
1240 | { | |
1241 | int ringsize; | |
1242 | ||
1243 | if (mdp->rx_ring) { | |
525b8075 | 1244 | ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring; |
91c77550 YS |
1245 | dma_free_coherent(NULL, ringsize, mdp->rx_ring, |
1246 | mdp->rx_desc_dma); | |
1247 | mdp->rx_ring = NULL; | |
1248 | } | |
1249 | ||
1250 | if (mdp->tx_ring) { | |
525b8075 | 1251 | ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring; |
91c77550 YS |
1252 | dma_free_coherent(NULL, ringsize, mdp->tx_ring, |
1253 | mdp->tx_desc_dma); | |
1254 | mdp->tx_ring = NULL; | |
1255 | } | |
1256 | } | |
1257 | ||
525b8075 | 1258 | static int sh_eth_dev_init(struct net_device *ndev, bool start) |
86a74ff2 NI |
1259 | { |
1260 | int ret = 0; | |
1261 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
1262 | u32 val; |
1263 | ||
1264 | /* Soft Reset */ | |
5cee1d37 NI |
1265 | ret = sh_eth_reset(ndev); |
1266 | if (ret) | |
1267 | goto out; | |
86a74ff2 | 1268 | |
55754f19 SH |
1269 | if (mdp->cd->rmiimode) |
1270 | sh_eth_write(ndev, 0x1, RMIIMODE); | |
1271 | ||
b0ca2a21 NI |
1272 | /* Descriptor format */ |
1273 | sh_eth_ring_format(ndev); | |
380af9e3 | 1274 | if (mdp->cd->rpadir) |
4a55530f | 1275 | sh_eth_write(ndev, mdp->cd->rpadir_value, RPADIR); |
86a74ff2 NI |
1276 | |
1277 | /* all sh_eth int mask */ | |
4a55530f | 1278 | sh_eth_write(ndev, 0, EESIPR); |
86a74ff2 | 1279 | |
10b9194f | 1280 | #if defined(__LITTLE_ENDIAN) |
380af9e3 | 1281 | if (mdp->cd->hw_swap) |
4a55530f | 1282 | sh_eth_write(ndev, EDMR_EL, EDMR); |
380af9e3 | 1283 | else |
b0ca2a21 | 1284 | #endif |
4a55530f | 1285 | sh_eth_write(ndev, 0, EDMR); |
86a74ff2 | 1286 | |
b0ca2a21 | 1287 | /* FIFO size set */ |
4a55530f YS |
1288 | sh_eth_write(ndev, mdp->cd->fdr_value, FDR); |
1289 | sh_eth_write(ndev, 0, TFTR); | |
86a74ff2 | 1290 | |
b0ca2a21 | 1291 | /* Frame recv control */ |
4a55530f | 1292 | sh_eth_write(ndev, mdp->cd->rmcr_value, RMCR); |
86a74ff2 | 1293 | |
2ecbb783 | 1294 | sh_eth_write(ndev, DESC_I_RINT8 | DESC_I_RINT5 | DESC_I_TINT2, TRSCER); |
86a74ff2 | 1295 | |
380af9e3 | 1296 | if (mdp->cd->bculr) |
4a55530f | 1297 | sh_eth_write(ndev, 0x800, BCULR); /* Burst sycle set */ |
b0ca2a21 | 1298 | |
4a55530f | 1299 | sh_eth_write(ndev, mdp->cd->fcftr_value, FCFTR); |
86a74ff2 | 1300 | |
380af9e3 | 1301 | if (!mdp->cd->no_trimd) |
4a55530f | 1302 | sh_eth_write(ndev, 0, TRIMD); |
86a74ff2 | 1303 | |
b0ca2a21 | 1304 | /* Recv frame limit set register */ |
fdb37a7f YS |
1305 | sh_eth_write(ndev, ndev->mtu + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN, |
1306 | RFLR); | |
86a74ff2 | 1307 | |
4a55530f | 1308 | sh_eth_write(ndev, sh_eth_read(ndev, EESR), EESR); |
525b8075 YS |
1309 | if (start) |
1310 | sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); | |
86a74ff2 NI |
1311 | |
1312 | /* PAUSE Prohibition */ | |
4a55530f | 1313 | val = (sh_eth_read(ndev, ECMR) & ECMR_DM) | |
86a74ff2 NI |
1314 | ECMR_ZPF | (mdp->duplex ? ECMR_DM : 0) | ECMR_TE | ECMR_RE; |
1315 | ||
4a55530f | 1316 | sh_eth_write(ndev, val, ECMR); |
b0ca2a21 | 1317 | |
380af9e3 YS |
1318 | if (mdp->cd->set_rate) |
1319 | mdp->cd->set_rate(ndev); | |
1320 | ||
b0ca2a21 | 1321 | /* E-MAC Status Register clear */ |
4a55530f | 1322 | sh_eth_write(ndev, mdp->cd->ecsr_value, ECSR); |
b0ca2a21 NI |
1323 | |
1324 | /* E-MAC Interrupt Enable register */ | |
525b8075 YS |
1325 | if (start) |
1326 | sh_eth_write(ndev, mdp->cd->ecsipr_value, ECSIPR); | |
86a74ff2 NI |
1327 | |
1328 | /* Set MAC address */ | |
1329 | update_mac_address(ndev); | |
1330 | ||
1331 | /* mask reset */ | |
380af9e3 | 1332 | if (mdp->cd->apr) |
4a55530f | 1333 | sh_eth_write(ndev, APR_AP, APR); |
380af9e3 | 1334 | if (mdp->cd->mpr) |
4a55530f | 1335 | sh_eth_write(ndev, MPR_MP, MPR); |
380af9e3 | 1336 | if (mdp->cd->tpauser) |
4a55530f | 1337 | sh_eth_write(ndev, TPAUSER_UNLIMITED, TPAUSER); |
b0ca2a21 | 1338 | |
525b8075 YS |
1339 | if (start) { |
1340 | /* Setting the Rx mode will start the Rx process. */ | |
1341 | sh_eth_write(ndev, EDRRR_R, EDRRR); | |
86a74ff2 | 1342 | |
525b8075 YS |
1343 | netif_start_queue(ndev); |
1344 | } | |
86a74ff2 | 1345 | |
5cee1d37 | 1346 | out: |
86a74ff2 NI |
1347 | return ret; |
1348 | } | |
1349 | ||
1350 | /* free Tx skb function */ | |
1351 | static int sh_eth_txfree(struct net_device *ndev) | |
1352 | { | |
1353 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1354 | struct sh_eth_txdesc *txdesc; | |
128296fc | 1355 | int free_num = 0; |
86a74ff2 NI |
1356 | int entry = 0; |
1357 | ||
1358 | for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) { | |
525b8075 | 1359 | entry = mdp->dirty_tx % mdp->num_tx_ring; |
86a74ff2 | 1360 | txdesc = &mdp->tx_ring[entry]; |
71557a37 | 1361 | if (txdesc->status & cpu_to_edmac(mdp, TD_TACT)) |
86a74ff2 NI |
1362 | break; |
1363 | /* Free the original skb. */ | |
1364 | if (mdp->tx_skbuff[entry]) { | |
31fcb99d YS |
1365 | dma_unmap_single(&ndev->dev, txdesc->addr, |
1366 | txdesc->buffer_length, DMA_TO_DEVICE); | |
86a74ff2 NI |
1367 | dev_kfree_skb_irq(mdp->tx_skbuff[entry]); |
1368 | mdp->tx_skbuff[entry] = NULL; | |
128296fc | 1369 | free_num++; |
86a74ff2 | 1370 | } |
71557a37 | 1371 | txdesc->status = cpu_to_edmac(mdp, TD_TFP); |
525b8075 | 1372 | if (entry >= mdp->num_tx_ring - 1) |
71557a37 | 1373 | txdesc->status |= cpu_to_edmac(mdp, TD_TDLE); |
86a74ff2 | 1374 | |
bb7d92e3 ED |
1375 | ndev->stats.tx_packets++; |
1376 | ndev->stats.tx_bytes += txdesc->buffer_length; | |
86a74ff2 | 1377 | } |
128296fc | 1378 | return free_num; |
86a74ff2 NI |
1379 | } |
1380 | ||
1381 | /* Packet receive function */ | |
3719109d | 1382 | static int sh_eth_rx(struct net_device *ndev, u32 intr_status, int *quota) |
86a74ff2 NI |
1383 | { |
1384 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1385 | struct sh_eth_rxdesc *rxdesc; | |
1386 | ||
525b8075 YS |
1387 | int entry = mdp->cur_rx % mdp->num_rx_ring; |
1388 | int boguscnt = (mdp->dirty_rx + mdp->num_rx_ring) - mdp->cur_rx; | |
86a74ff2 | 1389 | struct sk_buff *skb; |
3719109d | 1390 | int exceeded = 0; |
86a74ff2 | 1391 | u16 pkt_len = 0; |
380af9e3 | 1392 | u32 desc_status; |
86a74ff2 NI |
1393 | |
1394 | rxdesc = &mdp->rx_ring[entry]; | |
71557a37 YS |
1395 | while (!(rxdesc->status & cpu_to_edmac(mdp, RD_RACT))) { |
1396 | desc_status = edmac_to_cpu(mdp, rxdesc->status); | |
86a74ff2 NI |
1397 | pkt_len = rxdesc->frame_length; |
1398 | ||
1399 | if (--boguscnt < 0) | |
1400 | break; | |
1401 | ||
3719109d SS |
1402 | if (*quota <= 0) { |
1403 | exceeded = 1; | |
1404 | break; | |
1405 | } | |
1406 | (*quota)--; | |
1407 | ||
86a74ff2 | 1408 | if (!(desc_status & RDFEND)) |
bb7d92e3 | 1409 | ndev->stats.rx_length_errors++; |
86a74ff2 | 1410 | |
128296fc | 1411 | /* In case of almost all GETHER/ETHERs, the Receive Frame State |
dd019897 | 1412 | * (RFS) bits in the Receive Descriptor 0 are from bit 9 to |
db893473 SH |
1413 | * bit 0. However, in case of the R8A7740, R8A779x, and |
1414 | * R7S72100 the RFS bits are from bit 25 to bit 16. So, the | |
1415 | * driver needs right shifting by 16. | |
dd019897 | 1416 | */ |
ac8025a6 SS |
1417 | if (mdp->cd->shift_rd0) |
1418 | desc_status >>= 16; | |
dd019897 | 1419 | |
86a74ff2 NI |
1420 | if (desc_status & (RD_RFS1 | RD_RFS2 | RD_RFS3 | RD_RFS4 | |
1421 | RD_RFS5 | RD_RFS6 | RD_RFS10)) { | |
bb7d92e3 | 1422 | ndev->stats.rx_errors++; |
86a74ff2 | 1423 | if (desc_status & RD_RFS1) |
bb7d92e3 | 1424 | ndev->stats.rx_crc_errors++; |
86a74ff2 | 1425 | if (desc_status & RD_RFS2) |
bb7d92e3 | 1426 | ndev->stats.rx_frame_errors++; |
86a74ff2 | 1427 | if (desc_status & RD_RFS3) |
bb7d92e3 | 1428 | ndev->stats.rx_length_errors++; |
86a74ff2 | 1429 | if (desc_status & RD_RFS4) |
bb7d92e3 | 1430 | ndev->stats.rx_length_errors++; |
86a74ff2 | 1431 | if (desc_status & RD_RFS6) |
bb7d92e3 | 1432 | ndev->stats.rx_missed_errors++; |
86a74ff2 | 1433 | if (desc_status & RD_RFS10) |
bb7d92e3 | 1434 | ndev->stats.rx_over_errors++; |
86a74ff2 | 1435 | } else { |
380af9e3 YS |
1436 | if (!mdp->cd->hw_swap) |
1437 | sh_eth_soft_swap( | |
1438 | phys_to_virt(ALIGN(rxdesc->addr, 4)), | |
1439 | pkt_len + 2); | |
86a74ff2 NI |
1440 | skb = mdp->rx_skbuff[entry]; |
1441 | mdp->rx_skbuff[entry] = NULL; | |
503914cf MD |
1442 | if (mdp->cd->rpadir) |
1443 | skb_reserve(skb, NET_IP_ALIGN); | |
7db8e0c1 KA |
1444 | dma_sync_single_for_cpu(&ndev->dev, rxdesc->addr, |
1445 | mdp->rx_buf_sz, | |
1446 | DMA_FROM_DEVICE); | |
86a74ff2 NI |
1447 | skb_put(skb, pkt_len); |
1448 | skb->protocol = eth_type_trans(skb, ndev); | |
a8e9fd0f | 1449 | netif_receive_skb(skb); |
bb7d92e3 ED |
1450 | ndev->stats.rx_packets++; |
1451 | ndev->stats.rx_bytes += pkt_len; | |
86a74ff2 | 1452 | } |
71557a37 | 1453 | rxdesc->status |= cpu_to_edmac(mdp, RD_RACT); |
525b8075 | 1454 | entry = (++mdp->cur_rx) % mdp->num_rx_ring; |
862df497 | 1455 | rxdesc = &mdp->rx_ring[entry]; |
86a74ff2 NI |
1456 | } |
1457 | ||
1458 | /* Refill the Rx ring buffers. */ | |
1459 | for (; mdp->cur_rx - mdp->dirty_rx > 0; mdp->dirty_rx++) { | |
525b8075 | 1460 | entry = mdp->dirty_rx % mdp->num_rx_ring; |
86a74ff2 | 1461 | rxdesc = &mdp->rx_ring[entry]; |
b0ca2a21 | 1462 | /* The size of the buffer is 16 byte boundary. */ |
0029d64a | 1463 | rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16); |
b0ca2a21 | 1464 | |
86a74ff2 | 1465 | if (mdp->rx_skbuff[entry] == NULL) { |
dae2e9f4 | 1466 | skb = netdev_alloc_skb(ndev, mdp->rx_buf_sz); |
86a74ff2 NI |
1467 | mdp->rx_skbuff[entry] = skb; |
1468 | if (skb == NULL) | |
1469 | break; /* Better luck next round. */ | |
bb7d92e3 | 1470 | dma_map_single(&ndev->dev, skb->data, mdp->rx_buf_sz, |
128296fc | 1471 | DMA_FROM_DEVICE); |
380af9e3 YS |
1472 | sh_eth_set_receive_align(skb); |
1473 | ||
bc8acf2c | 1474 | skb_checksum_none_assert(skb); |
0029d64a | 1475 | rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4)); |
86a74ff2 | 1476 | } |
525b8075 | 1477 | if (entry >= mdp->num_rx_ring - 1) |
86a74ff2 | 1478 | rxdesc->status |= |
71557a37 | 1479 | cpu_to_edmac(mdp, RD_RACT | RD_RFP | RD_RDEL); |
86a74ff2 NI |
1480 | else |
1481 | rxdesc->status |= | |
71557a37 | 1482 | cpu_to_edmac(mdp, RD_RACT | RD_RFP); |
86a74ff2 NI |
1483 | } |
1484 | ||
1485 | /* Restart Rx engine if stopped. */ | |
1486 | /* If we don't need to check status, don't. -KDU */ | |
79fba9f5 | 1487 | if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) { |
a18e08bd | 1488 | /* fix the values for the next receiving if RDE is set */ |
128296fc SS |
1489 | if (intr_status & EESR_RDE) { |
1490 | u32 count = (sh_eth_read(ndev, RDFAR) - | |
1491 | sh_eth_read(ndev, RDLAR)) >> 4; | |
1492 | ||
1493 | mdp->cur_rx = count; | |
1494 | mdp->dirty_rx = count; | |
1495 | } | |
4a55530f | 1496 | sh_eth_write(ndev, EDRRR_R, EDRRR); |
79fba9f5 | 1497 | } |
86a74ff2 | 1498 | |
3719109d | 1499 | return exceeded; |
86a74ff2 NI |
1500 | } |
1501 | ||
4a55530f | 1502 | static void sh_eth_rcv_snd_disable(struct net_device *ndev) |
dc19e4e5 NI |
1503 | { |
1504 | /* disable tx and rx */ | |
4a55530f YS |
1505 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & |
1506 | ~(ECMR_RE | ECMR_TE), ECMR); | |
dc19e4e5 NI |
1507 | } |
1508 | ||
4a55530f | 1509 | static void sh_eth_rcv_snd_enable(struct net_device *ndev) |
dc19e4e5 NI |
1510 | { |
1511 | /* enable tx and rx */ | |
4a55530f YS |
1512 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | |
1513 | (ECMR_RE | ECMR_TE), ECMR); | |
dc19e4e5 NI |
1514 | } |
1515 | ||
86a74ff2 NI |
1516 | /* error control function */ |
1517 | static void sh_eth_error(struct net_device *ndev, int intr_status) | |
1518 | { | |
1519 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 | 1520 | u32 felic_stat; |
380af9e3 YS |
1521 | u32 link_stat; |
1522 | u32 mask; | |
86a74ff2 NI |
1523 | |
1524 | if (intr_status & EESR_ECI) { | |
4a55530f YS |
1525 | felic_stat = sh_eth_read(ndev, ECSR); |
1526 | sh_eth_write(ndev, felic_stat, ECSR); /* clear int */ | |
86a74ff2 | 1527 | if (felic_stat & ECSR_ICD) |
bb7d92e3 | 1528 | ndev->stats.tx_carrier_errors++; |
86a74ff2 NI |
1529 | if (felic_stat & ECSR_LCHNG) { |
1530 | /* Link Changed */ | |
4923576b | 1531 | if (mdp->cd->no_psr || mdp->no_ether_link) { |
1e1b812b | 1532 | goto ignore_link; |
380af9e3 | 1533 | } else { |
4a55530f | 1534 | link_stat = (sh_eth_read(ndev, PSR)); |
4923576b YS |
1535 | if (mdp->ether_link_active_low) |
1536 | link_stat = ~link_stat; | |
380af9e3 | 1537 | } |
128296fc | 1538 | if (!(link_stat & PHY_ST_LINK)) { |
4a55530f | 1539 | sh_eth_rcv_snd_disable(ndev); |
128296fc | 1540 | } else { |
86a74ff2 | 1541 | /* Link Up */ |
4a55530f | 1542 | sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) & |
128296fc SS |
1543 | ~DMAC_M_ECI, EESIPR); |
1544 | /* clear int */ | |
4a55530f | 1545 | sh_eth_write(ndev, sh_eth_read(ndev, ECSR), |
128296fc | 1546 | ECSR); |
4a55530f | 1547 | sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) | |
128296fc | 1548 | DMAC_M_ECI, EESIPR); |
86a74ff2 | 1549 | /* enable tx and rx */ |
4a55530f | 1550 | sh_eth_rcv_snd_enable(ndev); |
86a74ff2 NI |
1551 | } |
1552 | } | |
1553 | } | |
1554 | ||
1e1b812b | 1555 | ignore_link: |
86a74ff2 | 1556 | if (intr_status & EESR_TWB) { |
4eb313a7 SS |
1557 | /* Unused write back interrupt */ |
1558 | if (intr_status & EESR_TABT) { /* Transmit Abort int */ | |
bb7d92e3 | 1559 | ndev->stats.tx_aborted_errors++; |
8d5009f6 | 1560 | netif_err(mdp, tx_err, ndev, "Transmit Abort\n"); |
4eb313a7 | 1561 | } |
86a74ff2 NI |
1562 | } |
1563 | ||
1564 | if (intr_status & EESR_RABT) { | |
1565 | /* Receive Abort int */ | |
1566 | if (intr_status & EESR_RFRMER) { | |
1567 | /* Receive Frame Overflow int */ | |
bb7d92e3 | 1568 | ndev->stats.rx_frame_errors++; |
8d5009f6 | 1569 | netif_err(mdp, rx_err, ndev, "Receive Abort\n"); |
86a74ff2 NI |
1570 | } |
1571 | } | |
380af9e3 | 1572 | |
dc19e4e5 NI |
1573 | if (intr_status & EESR_TDE) { |
1574 | /* Transmit Descriptor Empty int */ | |
bb7d92e3 | 1575 | ndev->stats.tx_fifo_errors++; |
8d5009f6 | 1576 | netif_err(mdp, tx_err, ndev, "Transmit Descriptor Empty\n"); |
dc19e4e5 NI |
1577 | } |
1578 | ||
1579 | if (intr_status & EESR_TFE) { | |
1580 | /* FIFO under flow */ | |
bb7d92e3 | 1581 | ndev->stats.tx_fifo_errors++; |
8d5009f6 | 1582 | netif_err(mdp, tx_err, ndev, "Transmit FIFO Under flow\n"); |
86a74ff2 NI |
1583 | } |
1584 | ||
1585 | if (intr_status & EESR_RDE) { | |
1586 | /* Receive Descriptor Empty int */ | |
bb7d92e3 | 1587 | ndev->stats.rx_over_errors++; |
8d5009f6 | 1588 | netif_err(mdp, rx_err, ndev, "Receive Descriptor Empty\n"); |
86a74ff2 | 1589 | } |
dc19e4e5 | 1590 | |
86a74ff2 NI |
1591 | if (intr_status & EESR_RFE) { |
1592 | /* Receive FIFO Overflow int */ | |
bb7d92e3 | 1593 | ndev->stats.rx_fifo_errors++; |
8d5009f6 | 1594 | netif_err(mdp, rx_err, ndev, "Receive FIFO Overflow\n"); |
dc19e4e5 NI |
1595 | } |
1596 | ||
1597 | if (!mdp->cd->no_ade && (intr_status & EESR_ADE)) { | |
1598 | /* Address Error */ | |
bb7d92e3 | 1599 | ndev->stats.tx_fifo_errors++; |
8d5009f6 | 1600 | netif_err(mdp, tx_err, ndev, "Address Error\n"); |
86a74ff2 | 1601 | } |
380af9e3 YS |
1602 | |
1603 | mask = EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | EESR_TFE; | |
1604 | if (mdp->cd->no_ade) | |
1605 | mask &= ~EESR_ADE; | |
1606 | if (intr_status & mask) { | |
86a74ff2 | 1607 | /* Tx error */ |
4a55530f | 1608 | u32 edtrr = sh_eth_read(ndev, EDTRR); |
090d560f | 1609 | |
86a74ff2 | 1610 | /* dmesg */ |
da246855 SS |
1611 | netdev_err(ndev, "TX error. status=%8.8x cur_tx=%8.8x dirty_tx=%8.8x state=%8.8x EDTRR=%8.8x.\n", |
1612 | intr_status, mdp->cur_tx, mdp->dirty_tx, | |
1613 | (u32)ndev->state, edtrr); | |
86a74ff2 NI |
1614 | /* dirty buffer free */ |
1615 | sh_eth_txfree(ndev); | |
1616 | ||
1617 | /* SH7712 BUG */ | |
c5ed5368 | 1618 | if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) { |
86a74ff2 | 1619 | /* tx dma start */ |
c5ed5368 | 1620 | sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR); |
86a74ff2 NI |
1621 | } |
1622 | /* wakeup */ | |
1623 | netif_wake_queue(ndev); | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | static irqreturn_t sh_eth_interrupt(int irq, void *netdev) | |
1628 | { | |
1629 | struct net_device *ndev = netdev; | |
1630 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
380af9e3 | 1631 | struct sh_eth_cpu_data *cd = mdp->cd; |
0e0fde3c | 1632 | irqreturn_t ret = IRQ_NONE; |
3719109d | 1633 | unsigned long intr_status, intr_enable; |
86a74ff2 | 1634 | |
86a74ff2 NI |
1635 | spin_lock(&mdp->lock); |
1636 | ||
3893b273 | 1637 | /* Get interrupt status */ |
4a55530f | 1638 | intr_status = sh_eth_read(ndev, EESR); |
3893b273 SS |
1639 | /* Mask it with the interrupt mask, forcing ECI interrupt to be always |
1640 | * enabled since it's the one that comes thru regardless of the mask, | |
1641 | * and we need to fully handle it in sh_eth_error() in order to quench | |
1642 | * it as it doesn't get cleared by just writing 1 to the ECI bit... | |
1643 | */ | |
3719109d SS |
1644 | intr_enable = sh_eth_read(ndev, EESIPR); |
1645 | intr_status &= intr_enable | DMAC_M_ECI; | |
1646 | if (intr_status & (EESR_RX_CHECK | cd->tx_check | cd->eesr_err_check)) | |
0e0fde3c | 1647 | ret = IRQ_HANDLED; |
3719109d | 1648 | else |
0e0fde3c | 1649 | goto other_irq; |
86a74ff2 | 1650 | |
3719109d SS |
1651 | if (intr_status & EESR_RX_CHECK) { |
1652 | if (napi_schedule_prep(&mdp->napi)) { | |
1653 | /* Mask Rx interrupts */ | |
1654 | sh_eth_write(ndev, intr_enable & ~EESR_RX_CHECK, | |
1655 | EESIPR); | |
1656 | __napi_schedule(&mdp->napi); | |
1657 | } else { | |
da246855 SS |
1658 | netdev_warn(ndev, |
1659 | "ignoring interrupt, status 0x%08lx, mask 0x%08lx.\n", | |
1660 | intr_status, intr_enable); | |
3719109d SS |
1661 | } |
1662 | } | |
86a74ff2 | 1663 | |
b0ca2a21 | 1664 | /* Tx Check */ |
380af9e3 | 1665 | if (intr_status & cd->tx_check) { |
3719109d SS |
1666 | /* Clear Tx interrupts */ |
1667 | sh_eth_write(ndev, intr_status & cd->tx_check, EESR); | |
1668 | ||
86a74ff2 NI |
1669 | sh_eth_txfree(ndev); |
1670 | netif_wake_queue(ndev); | |
1671 | } | |
1672 | ||
3719109d SS |
1673 | if (intr_status & cd->eesr_err_check) { |
1674 | /* Clear error interrupts */ | |
1675 | sh_eth_write(ndev, intr_status & cd->eesr_err_check, EESR); | |
1676 | ||
86a74ff2 | 1677 | sh_eth_error(ndev, intr_status); |
3719109d | 1678 | } |
86a74ff2 | 1679 | |
0e0fde3c | 1680 | other_irq: |
86a74ff2 NI |
1681 | spin_unlock(&mdp->lock); |
1682 | ||
0e0fde3c | 1683 | return ret; |
86a74ff2 NI |
1684 | } |
1685 | ||
3719109d SS |
1686 | static int sh_eth_poll(struct napi_struct *napi, int budget) |
1687 | { | |
1688 | struct sh_eth_private *mdp = container_of(napi, struct sh_eth_private, | |
1689 | napi); | |
1690 | struct net_device *ndev = napi->dev; | |
1691 | int quota = budget; | |
1692 | unsigned long intr_status; | |
1693 | ||
1694 | for (;;) { | |
1695 | intr_status = sh_eth_read(ndev, EESR); | |
1696 | if (!(intr_status & EESR_RX_CHECK)) | |
1697 | break; | |
1698 | /* Clear Rx interrupts */ | |
1699 | sh_eth_write(ndev, intr_status & EESR_RX_CHECK, EESR); | |
1700 | ||
1701 | if (sh_eth_rx(ndev, intr_status, "a)) | |
1702 | goto out; | |
1703 | } | |
1704 | ||
1705 | napi_complete(napi); | |
1706 | ||
1707 | /* Reenable Rx interrupts */ | |
1708 | sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); | |
1709 | out: | |
1710 | return budget - quota; | |
1711 | } | |
1712 | ||
86a74ff2 NI |
1713 | /* PHY state control function */ |
1714 | static void sh_eth_adjust_link(struct net_device *ndev) | |
1715 | { | |
1716 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1717 | struct phy_device *phydev = mdp->phydev; | |
86a74ff2 NI |
1718 | int new_state = 0; |
1719 | ||
3340d2aa | 1720 | if (phydev->link) { |
86a74ff2 NI |
1721 | if (phydev->duplex != mdp->duplex) { |
1722 | new_state = 1; | |
1723 | mdp->duplex = phydev->duplex; | |
380af9e3 YS |
1724 | if (mdp->cd->set_duplex) |
1725 | mdp->cd->set_duplex(ndev); | |
86a74ff2 NI |
1726 | } |
1727 | ||
1728 | if (phydev->speed != mdp->speed) { | |
1729 | new_state = 1; | |
1730 | mdp->speed = phydev->speed; | |
380af9e3 YS |
1731 | if (mdp->cd->set_rate) |
1732 | mdp->cd->set_rate(ndev); | |
86a74ff2 | 1733 | } |
3340d2aa | 1734 | if (!mdp->link) { |
91a56152 | 1735 | sh_eth_write(ndev, |
128296fc SS |
1736 | sh_eth_read(ndev, ECMR) & ~ECMR_TXF, |
1737 | ECMR); | |
86a74ff2 NI |
1738 | new_state = 1; |
1739 | mdp->link = phydev->link; | |
1e1b812b SS |
1740 | if (mdp->cd->no_psr || mdp->no_ether_link) |
1741 | sh_eth_rcv_snd_enable(ndev); | |
86a74ff2 NI |
1742 | } |
1743 | } else if (mdp->link) { | |
1744 | new_state = 1; | |
3340d2aa | 1745 | mdp->link = 0; |
86a74ff2 NI |
1746 | mdp->speed = 0; |
1747 | mdp->duplex = -1; | |
1e1b812b SS |
1748 | if (mdp->cd->no_psr || mdp->no_ether_link) |
1749 | sh_eth_rcv_snd_disable(ndev); | |
86a74ff2 NI |
1750 | } |
1751 | ||
dc19e4e5 | 1752 | if (new_state && netif_msg_link(mdp)) |
86a74ff2 NI |
1753 | phy_print_status(phydev); |
1754 | } | |
1755 | ||
1756 | /* PHY init function */ | |
1757 | static int sh_eth_phy_init(struct net_device *ndev) | |
1758 | { | |
702eca02 | 1759 | struct device_node *np = ndev->dev.parent->of_node; |
86a74ff2 | 1760 | struct sh_eth_private *mdp = netdev_priv(ndev); |
86a74ff2 NI |
1761 | struct phy_device *phydev = NULL; |
1762 | ||
3340d2aa | 1763 | mdp->link = 0; |
86a74ff2 NI |
1764 | mdp->speed = 0; |
1765 | mdp->duplex = -1; | |
1766 | ||
1767 | /* Try connect to PHY */ | |
702eca02 BD |
1768 | if (np) { |
1769 | struct device_node *pn; | |
1770 | ||
1771 | pn = of_parse_phandle(np, "phy-handle", 0); | |
1772 | phydev = of_phy_connect(ndev, pn, | |
1773 | sh_eth_adjust_link, 0, | |
1774 | mdp->phy_interface); | |
1775 | ||
1776 | if (!phydev) | |
1777 | phydev = ERR_PTR(-ENOENT); | |
1778 | } else { | |
1779 | char phy_id[MII_BUS_ID_SIZE + 3]; | |
1780 | ||
1781 | snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, | |
1782 | mdp->mii_bus->id, mdp->phy_id); | |
1783 | ||
1784 | phydev = phy_connect(ndev, phy_id, sh_eth_adjust_link, | |
1785 | mdp->phy_interface); | |
1786 | } | |
1787 | ||
86a74ff2 | 1788 | if (IS_ERR(phydev)) { |
da246855 | 1789 | netdev_err(ndev, "failed to connect PHY\n"); |
86a74ff2 NI |
1790 | return PTR_ERR(phydev); |
1791 | } | |
380af9e3 | 1792 | |
da246855 SS |
1793 | netdev_info(ndev, "attached PHY %d (IRQ %d) to driver %s\n", |
1794 | phydev->addr, phydev->irq, phydev->drv->name); | |
86a74ff2 NI |
1795 | |
1796 | mdp->phydev = phydev; | |
1797 | ||
1798 | return 0; | |
1799 | } | |
1800 | ||
1801 | /* PHY control start function */ | |
1802 | static int sh_eth_phy_start(struct net_device *ndev) | |
1803 | { | |
1804 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1805 | int ret; | |
1806 | ||
1807 | ret = sh_eth_phy_init(ndev); | |
1808 | if (ret) | |
1809 | return ret; | |
1810 | ||
86a74ff2 NI |
1811 | phy_start(mdp->phydev); |
1812 | ||
1813 | return 0; | |
1814 | } | |
1815 | ||
dc19e4e5 | 1816 | static int sh_eth_get_settings(struct net_device *ndev, |
128296fc | 1817 | struct ethtool_cmd *ecmd) |
dc19e4e5 NI |
1818 | { |
1819 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1820 | unsigned long flags; | |
1821 | int ret; | |
1822 | ||
1823 | spin_lock_irqsave(&mdp->lock, flags); | |
1824 | ret = phy_ethtool_gset(mdp->phydev, ecmd); | |
1825 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1826 | ||
1827 | return ret; | |
1828 | } | |
1829 | ||
1830 | static int sh_eth_set_settings(struct net_device *ndev, | |
128296fc | 1831 | struct ethtool_cmd *ecmd) |
dc19e4e5 NI |
1832 | { |
1833 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1834 | unsigned long flags; | |
1835 | int ret; | |
dc19e4e5 NI |
1836 | |
1837 | spin_lock_irqsave(&mdp->lock, flags); | |
1838 | ||
1839 | /* disable tx and rx */ | |
4a55530f | 1840 | sh_eth_rcv_snd_disable(ndev); |
dc19e4e5 NI |
1841 | |
1842 | ret = phy_ethtool_sset(mdp->phydev, ecmd); | |
1843 | if (ret) | |
1844 | goto error_exit; | |
1845 | ||
1846 | if (ecmd->duplex == DUPLEX_FULL) | |
1847 | mdp->duplex = 1; | |
1848 | else | |
1849 | mdp->duplex = 0; | |
1850 | ||
1851 | if (mdp->cd->set_duplex) | |
1852 | mdp->cd->set_duplex(ndev); | |
1853 | ||
1854 | error_exit: | |
1855 | mdelay(1); | |
1856 | ||
1857 | /* enable tx and rx */ | |
4a55530f | 1858 | sh_eth_rcv_snd_enable(ndev); |
dc19e4e5 NI |
1859 | |
1860 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1861 | ||
1862 | return ret; | |
1863 | } | |
1864 | ||
1865 | static int sh_eth_nway_reset(struct net_device *ndev) | |
1866 | { | |
1867 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1868 | unsigned long flags; | |
1869 | int ret; | |
1870 | ||
1871 | spin_lock_irqsave(&mdp->lock, flags); | |
1872 | ret = phy_start_aneg(mdp->phydev); | |
1873 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1874 | ||
1875 | return ret; | |
1876 | } | |
1877 | ||
1878 | static u32 sh_eth_get_msglevel(struct net_device *ndev) | |
1879 | { | |
1880 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1881 | return mdp->msg_enable; | |
1882 | } | |
1883 | ||
1884 | static void sh_eth_set_msglevel(struct net_device *ndev, u32 value) | |
1885 | { | |
1886 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1887 | mdp->msg_enable = value; | |
1888 | } | |
1889 | ||
1890 | static const char sh_eth_gstrings_stats[][ETH_GSTRING_LEN] = { | |
1891 | "rx_current", "tx_current", | |
1892 | "rx_dirty", "tx_dirty", | |
1893 | }; | |
1894 | #define SH_ETH_STATS_LEN ARRAY_SIZE(sh_eth_gstrings_stats) | |
1895 | ||
1896 | static int sh_eth_get_sset_count(struct net_device *netdev, int sset) | |
1897 | { | |
1898 | switch (sset) { | |
1899 | case ETH_SS_STATS: | |
1900 | return SH_ETH_STATS_LEN; | |
1901 | default: | |
1902 | return -EOPNOTSUPP; | |
1903 | } | |
1904 | } | |
1905 | ||
1906 | static void sh_eth_get_ethtool_stats(struct net_device *ndev, | |
128296fc | 1907 | struct ethtool_stats *stats, u64 *data) |
dc19e4e5 NI |
1908 | { |
1909 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1910 | int i = 0; | |
1911 | ||
1912 | /* device-specific stats */ | |
1913 | data[i++] = mdp->cur_rx; | |
1914 | data[i++] = mdp->cur_tx; | |
1915 | data[i++] = mdp->dirty_rx; | |
1916 | data[i++] = mdp->dirty_tx; | |
1917 | } | |
1918 | ||
1919 | static void sh_eth_get_strings(struct net_device *ndev, u32 stringset, u8 *data) | |
1920 | { | |
1921 | switch (stringset) { | |
1922 | case ETH_SS_STATS: | |
1923 | memcpy(data, *sh_eth_gstrings_stats, | |
128296fc | 1924 | sizeof(sh_eth_gstrings_stats)); |
dc19e4e5 NI |
1925 | break; |
1926 | } | |
1927 | } | |
1928 | ||
525b8075 YS |
1929 | static void sh_eth_get_ringparam(struct net_device *ndev, |
1930 | struct ethtool_ringparam *ring) | |
1931 | { | |
1932 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1933 | ||
1934 | ring->rx_max_pending = RX_RING_MAX; | |
1935 | ring->tx_max_pending = TX_RING_MAX; | |
1936 | ring->rx_pending = mdp->num_rx_ring; | |
1937 | ring->tx_pending = mdp->num_tx_ring; | |
1938 | } | |
1939 | ||
1940 | static int sh_eth_set_ringparam(struct net_device *ndev, | |
1941 | struct ethtool_ringparam *ring) | |
1942 | { | |
1943 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1944 | int ret; | |
1945 | ||
1946 | if (ring->tx_pending > TX_RING_MAX || | |
1947 | ring->rx_pending > RX_RING_MAX || | |
1948 | ring->tx_pending < TX_RING_MIN || | |
1949 | ring->rx_pending < RX_RING_MIN) | |
1950 | return -EINVAL; | |
1951 | if (ring->rx_mini_pending || ring->rx_jumbo_pending) | |
1952 | return -EINVAL; | |
1953 | ||
1954 | if (netif_running(ndev)) { | |
1955 | netif_tx_disable(ndev); | |
1956 | /* Disable interrupts by clearing the interrupt mask. */ | |
1957 | sh_eth_write(ndev, 0x0000, EESIPR); | |
1958 | /* Stop the chip's Tx and Rx processes. */ | |
1959 | sh_eth_write(ndev, 0, EDTRR); | |
1960 | sh_eth_write(ndev, 0, EDRRR); | |
1961 | synchronize_irq(ndev->irq); | |
1962 | } | |
1963 | ||
1964 | /* Free all the skbuffs in the Rx queue. */ | |
1965 | sh_eth_ring_free(ndev); | |
1966 | /* Free DMA buffer */ | |
1967 | sh_eth_free_dma_buffer(mdp); | |
1968 | ||
1969 | /* Set new parameters */ | |
1970 | mdp->num_rx_ring = ring->rx_pending; | |
1971 | mdp->num_tx_ring = ring->tx_pending; | |
1972 | ||
1973 | ret = sh_eth_ring_init(ndev); | |
1974 | if (ret < 0) { | |
da246855 | 1975 | netdev_err(ndev, "%s: sh_eth_ring_init failed.\n", __func__); |
525b8075 YS |
1976 | return ret; |
1977 | } | |
1978 | ret = sh_eth_dev_init(ndev, false); | |
1979 | if (ret < 0) { | |
da246855 | 1980 | netdev_err(ndev, "%s: sh_eth_dev_init failed.\n", __func__); |
525b8075 YS |
1981 | return ret; |
1982 | } | |
1983 | ||
1984 | if (netif_running(ndev)) { | |
1985 | sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); | |
1986 | /* Setting the Rx mode will start the Rx process. */ | |
1987 | sh_eth_write(ndev, EDRRR_R, EDRRR); | |
1988 | netif_wake_queue(ndev); | |
1989 | } | |
1990 | ||
1991 | return 0; | |
1992 | } | |
1993 | ||
9b07be4b | 1994 | static const struct ethtool_ops sh_eth_ethtool_ops = { |
dc19e4e5 NI |
1995 | .get_settings = sh_eth_get_settings, |
1996 | .set_settings = sh_eth_set_settings, | |
9b07be4b | 1997 | .nway_reset = sh_eth_nway_reset, |
dc19e4e5 NI |
1998 | .get_msglevel = sh_eth_get_msglevel, |
1999 | .set_msglevel = sh_eth_set_msglevel, | |
9b07be4b | 2000 | .get_link = ethtool_op_get_link, |
dc19e4e5 NI |
2001 | .get_strings = sh_eth_get_strings, |
2002 | .get_ethtool_stats = sh_eth_get_ethtool_stats, | |
2003 | .get_sset_count = sh_eth_get_sset_count, | |
525b8075 YS |
2004 | .get_ringparam = sh_eth_get_ringparam, |
2005 | .set_ringparam = sh_eth_set_ringparam, | |
dc19e4e5 NI |
2006 | }; |
2007 | ||
86a74ff2 NI |
2008 | /* network device open function */ |
2009 | static int sh_eth_open(struct net_device *ndev) | |
2010 | { | |
2011 | int ret = 0; | |
2012 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2013 | ||
bcd5149d MD |
2014 | pm_runtime_get_sync(&mdp->pdev->dev); |
2015 | ||
d2779e99 SS |
2016 | napi_enable(&mdp->napi); |
2017 | ||
a0607fd3 | 2018 | ret = request_irq(ndev->irq, sh_eth_interrupt, |
5b3dfd13 | 2019 | mdp->cd->irq_flags, ndev->name, ndev); |
86a74ff2 | 2020 | if (ret) { |
da246855 | 2021 | netdev_err(ndev, "Can not assign IRQ number\n"); |
d2779e99 | 2022 | goto out_napi_off; |
86a74ff2 NI |
2023 | } |
2024 | ||
2025 | /* Descriptor set */ | |
2026 | ret = sh_eth_ring_init(ndev); | |
2027 | if (ret) | |
2028 | goto out_free_irq; | |
2029 | ||
2030 | /* device init */ | |
525b8075 | 2031 | ret = sh_eth_dev_init(ndev, true); |
86a74ff2 NI |
2032 | if (ret) |
2033 | goto out_free_irq; | |
2034 | ||
2035 | /* PHY control start*/ | |
2036 | ret = sh_eth_phy_start(ndev); | |
2037 | if (ret) | |
2038 | goto out_free_irq; | |
2039 | ||
86a74ff2 NI |
2040 | return ret; |
2041 | ||
2042 | out_free_irq: | |
2043 | free_irq(ndev->irq, ndev); | |
d2779e99 SS |
2044 | out_napi_off: |
2045 | napi_disable(&mdp->napi); | |
bcd5149d | 2046 | pm_runtime_put_sync(&mdp->pdev->dev); |
86a74ff2 NI |
2047 | return ret; |
2048 | } | |
2049 | ||
2050 | /* Timeout function */ | |
2051 | static void sh_eth_tx_timeout(struct net_device *ndev) | |
2052 | { | |
2053 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
2054 | struct sh_eth_rxdesc *rxdesc; |
2055 | int i; | |
2056 | ||
2057 | netif_stop_queue(ndev); | |
2058 | ||
8d5009f6 SS |
2059 | netif_err(mdp, timer, ndev, |
2060 | "transmit timed out, status %8.8x, resetting...\n", | |
2061 | (int)sh_eth_read(ndev, EESR)); | |
86a74ff2 NI |
2062 | |
2063 | /* tx_errors count up */ | |
bb7d92e3 | 2064 | ndev->stats.tx_errors++; |
86a74ff2 | 2065 | |
86a74ff2 | 2066 | /* Free all the skbuffs in the Rx queue. */ |
525b8075 | 2067 | for (i = 0; i < mdp->num_rx_ring; i++) { |
86a74ff2 NI |
2068 | rxdesc = &mdp->rx_ring[i]; |
2069 | rxdesc->status = 0; | |
2070 | rxdesc->addr = 0xBADF00D0; | |
2071 | if (mdp->rx_skbuff[i]) | |
2072 | dev_kfree_skb(mdp->rx_skbuff[i]); | |
2073 | mdp->rx_skbuff[i] = NULL; | |
2074 | } | |
525b8075 | 2075 | for (i = 0; i < mdp->num_tx_ring; i++) { |
86a74ff2 NI |
2076 | if (mdp->tx_skbuff[i]) |
2077 | dev_kfree_skb(mdp->tx_skbuff[i]); | |
2078 | mdp->tx_skbuff[i] = NULL; | |
2079 | } | |
2080 | ||
2081 | /* device init */ | |
525b8075 | 2082 | sh_eth_dev_init(ndev, true); |
86a74ff2 NI |
2083 | } |
2084 | ||
2085 | /* Packet transmit function */ | |
2086 | static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev) | |
2087 | { | |
2088 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2089 | struct sh_eth_txdesc *txdesc; | |
2090 | u32 entry; | |
fb5e2f9b | 2091 | unsigned long flags; |
86a74ff2 NI |
2092 | |
2093 | spin_lock_irqsave(&mdp->lock, flags); | |
525b8075 | 2094 | if ((mdp->cur_tx - mdp->dirty_tx) >= (mdp->num_tx_ring - 4)) { |
86a74ff2 | 2095 | if (!sh_eth_txfree(ndev)) { |
8d5009f6 | 2096 | netif_warn(mdp, tx_queued, ndev, "TxFD exhausted.\n"); |
86a74ff2 NI |
2097 | netif_stop_queue(ndev); |
2098 | spin_unlock_irqrestore(&mdp->lock, flags); | |
5b548140 | 2099 | return NETDEV_TX_BUSY; |
86a74ff2 NI |
2100 | } |
2101 | } | |
2102 | spin_unlock_irqrestore(&mdp->lock, flags); | |
2103 | ||
525b8075 | 2104 | entry = mdp->cur_tx % mdp->num_tx_ring; |
86a74ff2 NI |
2105 | mdp->tx_skbuff[entry] = skb; |
2106 | txdesc = &mdp->tx_ring[entry]; | |
86a74ff2 | 2107 | /* soft swap. */ |
380af9e3 YS |
2108 | if (!mdp->cd->hw_swap) |
2109 | sh_eth_soft_swap(phys_to_virt(ALIGN(txdesc->addr, 4)), | |
2110 | skb->len + 2); | |
31fcb99d YS |
2111 | txdesc->addr = dma_map_single(&ndev->dev, skb->data, skb->len, |
2112 | DMA_TO_DEVICE); | |
730c8c69 SS |
2113 | if (skb->len < ETH_ZLEN) |
2114 | txdesc->buffer_length = ETH_ZLEN; | |
86a74ff2 NI |
2115 | else |
2116 | txdesc->buffer_length = skb->len; | |
2117 | ||
525b8075 | 2118 | if (entry >= mdp->num_tx_ring - 1) |
71557a37 | 2119 | txdesc->status |= cpu_to_edmac(mdp, TD_TACT | TD_TDLE); |
86a74ff2 | 2120 | else |
71557a37 | 2121 | txdesc->status |= cpu_to_edmac(mdp, TD_TACT); |
86a74ff2 NI |
2122 | |
2123 | mdp->cur_tx++; | |
2124 | ||
c5ed5368 YS |
2125 | if (!(sh_eth_read(ndev, EDTRR) & sh_eth_get_edtrr_trns(mdp))) |
2126 | sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR); | |
b0ca2a21 | 2127 | |
6ed10654 | 2128 | return NETDEV_TX_OK; |
86a74ff2 NI |
2129 | } |
2130 | ||
2131 | /* device close function */ | |
2132 | static int sh_eth_close(struct net_device *ndev) | |
2133 | { | |
2134 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
2135 | |
2136 | netif_stop_queue(ndev); | |
2137 | ||
2138 | /* Disable interrupts by clearing the interrupt mask. */ | |
4a55530f | 2139 | sh_eth_write(ndev, 0x0000, EESIPR); |
86a74ff2 NI |
2140 | |
2141 | /* Stop the chip's Tx and Rx processes. */ | |
4a55530f YS |
2142 | sh_eth_write(ndev, 0, EDTRR); |
2143 | sh_eth_write(ndev, 0, EDRRR); | |
86a74ff2 NI |
2144 | |
2145 | /* PHY Disconnect */ | |
2146 | if (mdp->phydev) { | |
2147 | phy_stop(mdp->phydev); | |
2148 | phy_disconnect(mdp->phydev); | |
2149 | } | |
2150 | ||
2151 | free_irq(ndev->irq, ndev); | |
2152 | ||
d2779e99 SS |
2153 | napi_disable(&mdp->napi); |
2154 | ||
86a74ff2 NI |
2155 | /* Free all the skbuffs in the Rx queue. */ |
2156 | sh_eth_ring_free(ndev); | |
2157 | ||
2158 | /* free DMA buffer */ | |
91c77550 | 2159 | sh_eth_free_dma_buffer(mdp); |
86a74ff2 | 2160 | |
bcd5149d MD |
2161 | pm_runtime_put_sync(&mdp->pdev->dev); |
2162 | ||
86a74ff2 NI |
2163 | return 0; |
2164 | } | |
2165 | ||
2166 | static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev) | |
2167 | { | |
2168 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 | 2169 | |
db893473 SH |
2170 | if (sh_eth_is_rz_fast_ether(mdp)) |
2171 | return &ndev->stats; | |
2172 | ||
bcd5149d MD |
2173 | pm_runtime_get_sync(&mdp->pdev->dev); |
2174 | ||
bb7d92e3 | 2175 | ndev->stats.tx_dropped += sh_eth_read(ndev, TROCR); |
4a55530f | 2176 | sh_eth_write(ndev, 0, TROCR); /* (write clear) */ |
bb7d92e3 | 2177 | ndev->stats.collisions += sh_eth_read(ndev, CDCR); |
4a55530f | 2178 | sh_eth_write(ndev, 0, CDCR); /* (write clear) */ |
bb7d92e3 | 2179 | ndev->stats.tx_carrier_errors += sh_eth_read(ndev, LCCR); |
4a55530f | 2180 | sh_eth_write(ndev, 0, LCCR); /* (write clear) */ |
c5ed5368 | 2181 | if (sh_eth_is_gether(mdp)) { |
bb7d92e3 | 2182 | ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CERCR); |
c5ed5368 | 2183 | sh_eth_write(ndev, 0, CERCR); /* (write clear) */ |
bb7d92e3 | 2184 | ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CEECR); |
c5ed5368 YS |
2185 | sh_eth_write(ndev, 0, CEECR); /* (write clear) */ |
2186 | } else { | |
bb7d92e3 | 2187 | ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CNDCR); |
c5ed5368 YS |
2188 | sh_eth_write(ndev, 0, CNDCR); /* (write clear) */ |
2189 | } | |
bcd5149d MD |
2190 | pm_runtime_put_sync(&mdp->pdev->dev); |
2191 | ||
bb7d92e3 | 2192 | return &ndev->stats; |
86a74ff2 NI |
2193 | } |
2194 | ||
bb7d92e3 | 2195 | /* ioctl to device function */ |
128296fc | 2196 | static int sh_eth_do_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd) |
86a74ff2 NI |
2197 | { |
2198 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2199 | struct phy_device *phydev = mdp->phydev; | |
2200 | ||
2201 | if (!netif_running(ndev)) | |
2202 | return -EINVAL; | |
2203 | ||
2204 | if (!phydev) | |
2205 | return -ENODEV; | |
2206 | ||
28b04113 | 2207 | return phy_mii_ioctl(phydev, rq, cmd); |
86a74ff2 NI |
2208 | } |
2209 | ||
6743fe6d YS |
2210 | /* For TSU_POSTn. Please refer to the manual about this (strange) bitfields */ |
2211 | static void *sh_eth_tsu_get_post_reg_offset(struct sh_eth_private *mdp, | |
2212 | int entry) | |
2213 | { | |
2214 | return sh_eth_tsu_get_offset(mdp, TSU_POST1) + (entry / 8 * 4); | |
2215 | } | |
2216 | ||
2217 | static u32 sh_eth_tsu_get_post_mask(int entry) | |
2218 | { | |
2219 | return 0x0f << (28 - ((entry % 8) * 4)); | |
2220 | } | |
2221 | ||
2222 | static u32 sh_eth_tsu_get_post_bit(struct sh_eth_private *mdp, int entry) | |
2223 | { | |
2224 | return (0x08 >> (mdp->port << 1)) << (28 - ((entry % 8) * 4)); | |
2225 | } | |
2226 | ||
2227 | static void sh_eth_tsu_enable_cam_entry_post(struct net_device *ndev, | |
2228 | int entry) | |
2229 | { | |
2230 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2231 | u32 tmp; | |
2232 | void *reg_offset; | |
2233 | ||
2234 | reg_offset = sh_eth_tsu_get_post_reg_offset(mdp, entry); | |
2235 | tmp = ioread32(reg_offset); | |
2236 | iowrite32(tmp | sh_eth_tsu_get_post_bit(mdp, entry), reg_offset); | |
2237 | } | |
2238 | ||
2239 | static bool sh_eth_tsu_disable_cam_entry_post(struct net_device *ndev, | |
2240 | int entry) | |
2241 | { | |
2242 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2243 | u32 post_mask, ref_mask, tmp; | |
2244 | void *reg_offset; | |
2245 | ||
2246 | reg_offset = sh_eth_tsu_get_post_reg_offset(mdp, entry); | |
2247 | post_mask = sh_eth_tsu_get_post_mask(entry); | |
2248 | ref_mask = sh_eth_tsu_get_post_bit(mdp, entry) & ~post_mask; | |
2249 | ||
2250 | tmp = ioread32(reg_offset); | |
2251 | iowrite32(tmp & ~post_mask, reg_offset); | |
2252 | ||
2253 | /* If other port enables, the function returns "true" */ | |
2254 | return tmp & ref_mask; | |
2255 | } | |
2256 | ||
2257 | static int sh_eth_tsu_busy(struct net_device *ndev) | |
2258 | { | |
2259 | int timeout = SH_ETH_TSU_TIMEOUT_MS * 100; | |
2260 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2261 | ||
2262 | while ((sh_eth_tsu_read(mdp, TSU_ADSBSY) & TSU_ADSBSY_0)) { | |
2263 | udelay(10); | |
2264 | timeout--; | |
2265 | if (timeout <= 0) { | |
da246855 | 2266 | netdev_err(ndev, "%s: timeout\n", __func__); |
6743fe6d YS |
2267 | return -ETIMEDOUT; |
2268 | } | |
2269 | } | |
2270 | ||
2271 | return 0; | |
2272 | } | |
2273 | ||
2274 | static int sh_eth_tsu_write_entry(struct net_device *ndev, void *reg, | |
2275 | const u8 *addr) | |
2276 | { | |
2277 | u32 val; | |
2278 | ||
2279 | val = addr[0] << 24 | addr[1] << 16 | addr[2] << 8 | addr[3]; | |
2280 | iowrite32(val, reg); | |
2281 | if (sh_eth_tsu_busy(ndev) < 0) | |
2282 | return -EBUSY; | |
2283 | ||
2284 | val = addr[4] << 8 | addr[5]; | |
2285 | iowrite32(val, reg + 4); | |
2286 | if (sh_eth_tsu_busy(ndev) < 0) | |
2287 | return -EBUSY; | |
2288 | ||
2289 | return 0; | |
2290 | } | |
2291 | ||
2292 | static void sh_eth_tsu_read_entry(void *reg, u8 *addr) | |
2293 | { | |
2294 | u32 val; | |
2295 | ||
2296 | val = ioread32(reg); | |
2297 | addr[0] = (val >> 24) & 0xff; | |
2298 | addr[1] = (val >> 16) & 0xff; | |
2299 | addr[2] = (val >> 8) & 0xff; | |
2300 | addr[3] = val & 0xff; | |
2301 | val = ioread32(reg + 4); | |
2302 | addr[4] = (val >> 8) & 0xff; | |
2303 | addr[5] = val & 0xff; | |
2304 | } | |
2305 | ||
2306 | ||
2307 | static int sh_eth_tsu_find_entry(struct net_device *ndev, const u8 *addr) | |
2308 | { | |
2309 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2310 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2311 | int i; | |
2312 | u8 c_addr[ETH_ALEN]; | |
2313 | ||
2314 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++, reg_offset += 8) { | |
2315 | sh_eth_tsu_read_entry(reg_offset, c_addr); | |
c4bde29c | 2316 | if (ether_addr_equal(addr, c_addr)) |
6743fe6d YS |
2317 | return i; |
2318 | } | |
2319 | ||
2320 | return -ENOENT; | |
2321 | } | |
2322 | ||
2323 | static int sh_eth_tsu_find_empty(struct net_device *ndev) | |
2324 | { | |
2325 | u8 blank[ETH_ALEN]; | |
2326 | int entry; | |
2327 | ||
2328 | memset(blank, 0, sizeof(blank)); | |
2329 | entry = sh_eth_tsu_find_entry(ndev, blank); | |
2330 | return (entry < 0) ? -ENOMEM : entry; | |
2331 | } | |
2332 | ||
2333 | static int sh_eth_tsu_disable_cam_entry_table(struct net_device *ndev, | |
2334 | int entry) | |
2335 | { | |
2336 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2337 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2338 | int ret; | |
2339 | u8 blank[ETH_ALEN]; | |
2340 | ||
2341 | sh_eth_tsu_write(mdp, sh_eth_tsu_read(mdp, TSU_TEN) & | |
2342 | ~(1 << (31 - entry)), TSU_TEN); | |
2343 | ||
2344 | memset(blank, 0, sizeof(blank)); | |
2345 | ret = sh_eth_tsu_write_entry(ndev, reg_offset + entry * 8, blank); | |
2346 | if (ret < 0) | |
2347 | return ret; | |
2348 | return 0; | |
2349 | } | |
2350 | ||
2351 | static int sh_eth_tsu_add_entry(struct net_device *ndev, const u8 *addr) | |
2352 | { | |
2353 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2354 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2355 | int i, ret; | |
2356 | ||
2357 | if (!mdp->cd->tsu) | |
2358 | return 0; | |
2359 | ||
2360 | i = sh_eth_tsu_find_entry(ndev, addr); | |
2361 | if (i < 0) { | |
2362 | /* No entry found, create one */ | |
2363 | i = sh_eth_tsu_find_empty(ndev); | |
2364 | if (i < 0) | |
2365 | return -ENOMEM; | |
2366 | ret = sh_eth_tsu_write_entry(ndev, reg_offset + i * 8, addr); | |
2367 | if (ret < 0) | |
2368 | return ret; | |
2369 | ||
2370 | /* Enable the entry */ | |
2371 | sh_eth_tsu_write(mdp, sh_eth_tsu_read(mdp, TSU_TEN) | | |
2372 | (1 << (31 - i)), TSU_TEN); | |
2373 | } | |
2374 | ||
2375 | /* Entry found or created, enable POST */ | |
2376 | sh_eth_tsu_enable_cam_entry_post(ndev, i); | |
2377 | ||
2378 | return 0; | |
2379 | } | |
2380 | ||
2381 | static int sh_eth_tsu_del_entry(struct net_device *ndev, const u8 *addr) | |
2382 | { | |
2383 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2384 | int i, ret; | |
2385 | ||
2386 | if (!mdp->cd->tsu) | |
2387 | return 0; | |
2388 | ||
2389 | i = sh_eth_tsu_find_entry(ndev, addr); | |
2390 | if (i) { | |
2391 | /* Entry found */ | |
2392 | if (sh_eth_tsu_disable_cam_entry_post(ndev, i)) | |
2393 | goto done; | |
2394 | ||
2395 | /* Disable the entry if both ports was disabled */ | |
2396 | ret = sh_eth_tsu_disable_cam_entry_table(ndev, i); | |
2397 | if (ret < 0) | |
2398 | return ret; | |
2399 | } | |
2400 | done: | |
2401 | return 0; | |
2402 | } | |
2403 | ||
2404 | static int sh_eth_tsu_purge_all(struct net_device *ndev) | |
2405 | { | |
2406 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2407 | int i, ret; | |
2408 | ||
2409 | if (unlikely(!mdp->cd->tsu)) | |
2410 | return 0; | |
2411 | ||
2412 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++) { | |
2413 | if (sh_eth_tsu_disable_cam_entry_post(ndev, i)) | |
2414 | continue; | |
2415 | ||
2416 | /* Disable the entry if both ports was disabled */ | |
2417 | ret = sh_eth_tsu_disable_cam_entry_table(ndev, i); | |
2418 | if (ret < 0) | |
2419 | return ret; | |
2420 | } | |
2421 | ||
2422 | return 0; | |
2423 | } | |
2424 | ||
2425 | static void sh_eth_tsu_purge_mcast(struct net_device *ndev) | |
2426 | { | |
2427 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2428 | u8 addr[ETH_ALEN]; | |
2429 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2430 | int i; | |
2431 | ||
2432 | if (unlikely(!mdp->cd->tsu)) | |
2433 | return; | |
2434 | ||
2435 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++, reg_offset += 8) { | |
2436 | sh_eth_tsu_read_entry(reg_offset, addr); | |
2437 | if (is_multicast_ether_addr(addr)) | |
2438 | sh_eth_tsu_del_entry(ndev, addr); | |
2439 | } | |
2440 | } | |
2441 | ||
86a74ff2 NI |
2442 | /* Multicast reception directions set */ |
2443 | static void sh_eth_set_multicast_list(struct net_device *ndev) | |
2444 | { | |
6743fe6d YS |
2445 | struct sh_eth_private *mdp = netdev_priv(ndev); |
2446 | u32 ecmr_bits; | |
2447 | int mcast_all = 0; | |
2448 | unsigned long flags; | |
2449 | ||
2450 | spin_lock_irqsave(&mdp->lock, flags); | |
128296fc | 2451 | /* Initial condition is MCT = 1, PRM = 0. |
6743fe6d YS |
2452 | * Depending on ndev->flags, set PRM or clear MCT |
2453 | */ | |
2454 | ecmr_bits = (sh_eth_read(ndev, ECMR) & ~ECMR_PRM) | ECMR_MCT; | |
2455 | ||
2456 | if (!(ndev->flags & IFF_MULTICAST)) { | |
2457 | sh_eth_tsu_purge_mcast(ndev); | |
2458 | mcast_all = 1; | |
2459 | } | |
2460 | if (ndev->flags & IFF_ALLMULTI) { | |
2461 | sh_eth_tsu_purge_mcast(ndev); | |
2462 | ecmr_bits &= ~ECMR_MCT; | |
2463 | mcast_all = 1; | |
2464 | } | |
2465 | ||
86a74ff2 | 2466 | if (ndev->flags & IFF_PROMISC) { |
6743fe6d YS |
2467 | sh_eth_tsu_purge_all(ndev); |
2468 | ecmr_bits = (ecmr_bits & ~ECMR_MCT) | ECMR_PRM; | |
2469 | } else if (mdp->cd->tsu) { | |
2470 | struct netdev_hw_addr *ha; | |
2471 | netdev_for_each_mc_addr(ha, ndev) { | |
2472 | if (mcast_all && is_multicast_ether_addr(ha->addr)) | |
2473 | continue; | |
2474 | ||
2475 | if (sh_eth_tsu_add_entry(ndev, ha->addr) < 0) { | |
2476 | if (!mcast_all) { | |
2477 | sh_eth_tsu_purge_mcast(ndev); | |
2478 | ecmr_bits &= ~ECMR_MCT; | |
2479 | mcast_all = 1; | |
2480 | } | |
2481 | } | |
2482 | } | |
86a74ff2 NI |
2483 | } else { |
2484 | /* Normal, unicast/broadcast-only mode. */ | |
6743fe6d | 2485 | ecmr_bits = (ecmr_bits & ~ECMR_PRM) | ECMR_MCT; |
86a74ff2 | 2486 | } |
6743fe6d YS |
2487 | |
2488 | /* update the ethernet mode */ | |
2489 | sh_eth_write(ndev, ecmr_bits, ECMR); | |
2490 | ||
2491 | spin_unlock_irqrestore(&mdp->lock, flags); | |
86a74ff2 | 2492 | } |
71cc7c37 YS |
2493 | |
2494 | static int sh_eth_get_vtag_index(struct sh_eth_private *mdp) | |
2495 | { | |
2496 | if (!mdp->port) | |
2497 | return TSU_VTAG0; | |
2498 | else | |
2499 | return TSU_VTAG1; | |
2500 | } | |
2501 | ||
80d5c368 PM |
2502 | static int sh_eth_vlan_rx_add_vid(struct net_device *ndev, |
2503 | __be16 proto, u16 vid) | |
71cc7c37 YS |
2504 | { |
2505 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2506 | int vtag_reg_index = sh_eth_get_vtag_index(mdp); | |
2507 | ||
2508 | if (unlikely(!mdp->cd->tsu)) | |
2509 | return -EPERM; | |
2510 | ||
2511 | /* No filtering if vid = 0 */ | |
2512 | if (!vid) | |
2513 | return 0; | |
2514 | ||
2515 | mdp->vlan_num_ids++; | |
2516 | ||
128296fc | 2517 | /* The controller has one VLAN tag HW filter. So, if the filter is |
71cc7c37 YS |
2518 | * already enabled, the driver disables it and the filte |
2519 | */ | |
2520 | if (mdp->vlan_num_ids > 1) { | |
2521 | /* disable VLAN filter */ | |
2522 | sh_eth_tsu_write(mdp, 0, vtag_reg_index); | |
2523 | return 0; | |
2524 | } | |
2525 | ||
2526 | sh_eth_tsu_write(mdp, TSU_VTAG_ENABLE | (vid & TSU_VTAG_VID_MASK), | |
2527 | vtag_reg_index); | |
2528 | ||
2529 | return 0; | |
2530 | } | |
2531 | ||
80d5c368 PM |
2532 | static int sh_eth_vlan_rx_kill_vid(struct net_device *ndev, |
2533 | __be16 proto, u16 vid) | |
71cc7c37 YS |
2534 | { |
2535 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2536 | int vtag_reg_index = sh_eth_get_vtag_index(mdp); | |
2537 | ||
2538 | if (unlikely(!mdp->cd->tsu)) | |
2539 | return -EPERM; | |
2540 | ||
2541 | /* No filtering if vid = 0 */ | |
2542 | if (!vid) | |
2543 | return 0; | |
2544 | ||
2545 | mdp->vlan_num_ids--; | |
2546 | sh_eth_tsu_write(mdp, 0, vtag_reg_index); | |
2547 | ||
2548 | return 0; | |
2549 | } | |
86a74ff2 NI |
2550 | |
2551 | /* SuperH's TSU register init function */ | |
4a55530f | 2552 | static void sh_eth_tsu_init(struct sh_eth_private *mdp) |
86a74ff2 | 2553 | { |
db893473 SH |
2554 | if (sh_eth_is_rz_fast_ether(mdp)) { |
2555 | sh_eth_tsu_write(mdp, 0, TSU_TEN); /* Disable all CAM entry */ | |
2556 | return; | |
2557 | } | |
2558 | ||
4a55530f YS |
2559 | sh_eth_tsu_write(mdp, 0, TSU_FWEN0); /* Disable forward(0->1) */ |
2560 | sh_eth_tsu_write(mdp, 0, TSU_FWEN1); /* Disable forward(1->0) */ | |
2561 | sh_eth_tsu_write(mdp, 0, TSU_FCM); /* forward fifo 3k-3k */ | |
2562 | sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL0); | |
2563 | sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL1); | |
2564 | sh_eth_tsu_write(mdp, 0, TSU_PRISL0); | |
2565 | sh_eth_tsu_write(mdp, 0, TSU_PRISL1); | |
2566 | sh_eth_tsu_write(mdp, 0, TSU_FWSL0); | |
2567 | sh_eth_tsu_write(mdp, 0, TSU_FWSL1); | |
2568 | sh_eth_tsu_write(mdp, TSU_FWSLC_POSTENU | TSU_FWSLC_POSTENL, TSU_FWSLC); | |
c5ed5368 YS |
2569 | if (sh_eth_is_gether(mdp)) { |
2570 | sh_eth_tsu_write(mdp, 0, TSU_QTAG0); /* Disable QTAG(0->1) */ | |
2571 | sh_eth_tsu_write(mdp, 0, TSU_QTAG1); /* Disable QTAG(1->0) */ | |
2572 | } else { | |
2573 | sh_eth_tsu_write(mdp, 0, TSU_QTAGM0); /* Disable QTAG(0->1) */ | |
2574 | sh_eth_tsu_write(mdp, 0, TSU_QTAGM1); /* Disable QTAG(1->0) */ | |
2575 | } | |
4a55530f YS |
2576 | sh_eth_tsu_write(mdp, 0, TSU_FWSR); /* all interrupt status clear */ |
2577 | sh_eth_tsu_write(mdp, 0, TSU_FWINMK); /* Disable all interrupt */ | |
2578 | sh_eth_tsu_write(mdp, 0, TSU_TEN); /* Disable all CAM entry */ | |
2579 | sh_eth_tsu_write(mdp, 0, TSU_POST1); /* Disable CAM entry [ 0- 7] */ | |
2580 | sh_eth_tsu_write(mdp, 0, TSU_POST2); /* Disable CAM entry [ 8-15] */ | |
2581 | sh_eth_tsu_write(mdp, 0, TSU_POST3); /* Disable CAM entry [16-23] */ | |
2582 | sh_eth_tsu_write(mdp, 0, TSU_POST4); /* Disable CAM entry [24-31] */ | |
86a74ff2 NI |
2583 | } |
2584 | ||
2585 | /* MDIO bus release function */ | |
2586 | static int sh_mdio_release(struct net_device *ndev) | |
2587 | { | |
2588 | struct mii_bus *bus = dev_get_drvdata(&ndev->dev); | |
2589 | ||
2590 | /* unregister mdio bus */ | |
2591 | mdiobus_unregister(bus); | |
2592 | ||
2593 | /* remove mdio bus info from net_device */ | |
2594 | dev_set_drvdata(&ndev->dev, NULL); | |
2595 | ||
2596 | /* free bitbang info */ | |
2597 | free_mdio_bitbang(bus); | |
2598 | ||
2599 | return 0; | |
2600 | } | |
2601 | ||
2602 | /* MDIO bus init function */ | |
b3017e6a YS |
2603 | static int sh_mdio_init(struct net_device *ndev, int id, |
2604 | struct sh_eth_plat_data *pd) | |
86a74ff2 NI |
2605 | { |
2606 | int ret, i; | |
2607 | struct bb_info *bitbang; | |
2608 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2609 | ||
2610 | /* create bit control struct for PHY */ | |
d5e07e69 SS |
2611 | bitbang = devm_kzalloc(&ndev->dev, sizeof(struct bb_info), |
2612 | GFP_KERNEL); | |
86a74ff2 NI |
2613 | if (!bitbang) { |
2614 | ret = -ENOMEM; | |
2615 | goto out; | |
2616 | } | |
2617 | ||
2618 | /* bitbang init */ | |
ae70644d | 2619 | bitbang->addr = mdp->addr + mdp->reg_offset[PIR]; |
b3017e6a | 2620 | bitbang->set_gate = pd->set_mdio_gate; |
dfed5e7f SS |
2621 | bitbang->mdi_msk = PIR_MDI; |
2622 | bitbang->mdo_msk = PIR_MDO; | |
2623 | bitbang->mmd_msk = PIR_MMD; | |
2624 | bitbang->mdc_msk = PIR_MDC; | |
86a74ff2 NI |
2625 | bitbang->ctrl.ops = &bb_ops; |
2626 | ||
c2e07b3a | 2627 | /* MII controller setting */ |
86a74ff2 NI |
2628 | mdp->mii_bus = alloc_mdio_bitbang(&bitbang->ctrl); |
2629 | if (!mdp->mii_bus) { | |
2630 | ret = -ENOMEM; | |
d5e07e69 | 2631 | goto out; |
86a74ff2 NI |
2632 | } |
2633 | ||
2634 | /* Hook up MII support for ethtool */ | |
2635 | mdp->mii_bus->name = "sh_mii"; | |
18ee49dd | 2636 | mdp->mii_bus->parent = &ndev->dev; |
5278fb54 | 2637 | snprintf(mdp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x", |
128296fc | 2638 | mdp->pdev->name, id); |
86a74ff2 NI |
2639 | |
2640 | /* PHY IRQ */ | |
d5e07e69 SS |
2641 | mdp->mii_bus->irq = devm_kzalloc(&ndev->dev, |
2642 | sizeof(int) * PHY_MAX_ADDR, | |
2643 | GFP_KERNEL); | |
86a74ff2 NI |
2644 | if (!mdp->mii_bus->irq) { |
2645 | ret = -ENOMEM; | |
2646 | goto out_free_bus; | |
2647 | } | |
2648 | ||
8f6352f2 | 2649 | /* register mdio bus */ |
702eca02 BD |
2650 | if (ndev->dev.parent->of_node) { |
2651 | ret = of_mdiobus_register(mdp->mii_bus, | |
2652 | ndev->dev.parent->of_node); | |
2653 | } else { | |
2654 | for (i = 0; i < PHY_MAX_ADDR; i++) | |
2655 | mdp->mii_bus->irq[i] = PHY_POLL; | |
2656 | if (pd->phy_irq > 0) | |
2657 | mdp->mii_bus->irq[pd->phy] = pd->phy_irq; | |
2658 | ||
2659 | ret = mdiobus_register(mdp->mii_bus); | |
2660 | } | |
2661 | ||
86a74ff2 | 2662 | if (ret) |
d5e07e69 | 2663 | goto out_free_bus; |
86a74ff2 NI |
2664 | |
2665 | dev_set_drvdata(&ndev->dev, mdp->mii_bus); | |
2666 | ||
2667 | return 0; | |
2668 | ||
86a74ff2 | 2669 | out_free_bus: |
298cf9be | 2670 | free_mdio_bitbang(mdp->mii_bus); |
86a74ff2 | 2671 | |
86a74ff2 NI |
2672 | out: |
2673 | return ret; | |
2674 | } | |
2675 | ||
4a55530f YS |
2676 | static const u16 *sh_eth_get_register_offset(int register_type) |
2677 | { | |
2678 | const u16 *reg_offset = NULL; | |
2679 | ||
2680 | switch (register_type) { | |
2681 | case SH_ETH_REG_GIGABIT: | |
2682 | reg_offset = sh_eth_offset_gigabit; | |
2683 | break; | |
db893473 SH |
2684 | case SH_ETH_REG_FAST_RZ: |
2685 | reg_offset = sh_eth_offset_fast_rz; | |
2686 | break; | |
a3f109bd SS |
2687 | case SH_ETH_REG_FAST_RCAR: |
2688 | reg_offset = sh_eth_offset_fast_rcar; | |
2689 | break; | |
4a55530f YS |
2690 | case SH_ETH_REG_FAST_SH4: |
2691 | reg_offset = sh_eth_offset_fast_sh4; | |
2692 | break; | |
2693 | case SH_ETH_REG_FAST_SH3_SH2: | |
2694 | reg_offset = sh_eth_offset_fast_sh3_sh2; | |
2695 | break; | |
2696 | default: | |
4a55530f YS |
2697 | break; |
2698 | } | |
2699 | ||
2700 | return reg_offset; | |
2701 | } | |
2702 | ||
8f728d79 | 2703 | static const struct net_device_ops sh_eth_netdev_ops = { |
ebf84eaa AB |
2704 | .ndo_open = sh_eth_open, |
2705 | .ndo_stop = sh_eth_close, | |
2706 | .ndo_start_xmit = sh_eth_start_xmit, | |
2707 | .ndo_get_stats = sh_eth_get_stats, | |
ebf84eaa AB |
2708 | .ndo_tx_timeout = sh_eth_tx_timeout, |
2709 | .ndo_do_ioctl = sh_eth_do_ioctl, | |
2710 | .ndo_validate_addr = eth_validate_addr, | |
2711 | .ndo_set_mac_address = eth_mac_addr, | |
2712 | .ndo_change_mtu = eth_change_mtu, | |
2713 | }; | |
2714 | ||
8f728d79 SS |
2715 | static const struct net_device_ops sh_eth_netdev_ops_tsu = { |
2716 | .ndo_open = sh_eth_open, | |
2717 | .ndo_stop = sh_eth_close, | |
2718 | .ndo_start_xmit = sh_eth_start_xmit, | |
2719 | .ndo_get_stats = sh_eth_get_stats, | |
2720 | .ndo_set_rx_mode = sh_eth_set_multicast_list, | |
2721 | .ndo_vlan_rx_add_vid = sh_eth_vlan_rx_add_vid, | |
2722 | .ndo_vlan_rx_kill_vid = sh_eth_vlan_rx_kill_vid, | |
2723 | .ndo_tx_timeout = sh_eth_tx_timeout, | |
2724 | .ndo_do_ioctl = sh_eth_do_ioctl, | |
2725 | .ndo_validate_addr = eth_validate_addr, | |
2726 | .ndo_set_mac_address = eth_mac_addr, | |
2727 | .ndo_change_mtu = eth_change_mtu, | |
2728 | }; | |
2729 | ||
b356e978 SS |
2730 | #ifdef CONFIG_OF |
2731 | static struct sh_eth_plat_data *sh_eth_parse_dt(struct device *dev) | |
2732 | { | |
2733 | struct device_node *np = dev->of_node; | |
2734 | struct sh_eth_plat_data *pdata; | |
b356e978 SS |
2735 | const char *mac_addr; |
2736 | ||
2737 | pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL); | |
2738 | if (!pdata) | |
2739 | return NULL; | |
2740 | ||
2741 | pdata->phy_interface = of_get_phy_mode(np); | |
2742 | ||
b356e978 SS |
2743 | mac_addr = of_get_mac_address(np); |
2744 | if (mac_addr) | |
2745 | memcpy(pdata->mac_addr, mac_addr, ETH_ALEN); | |
2746 | ||
2747 | pdata->no_ether_link = | |
2748 | of_property_read_bool(np, "renesas,no-ether-link"); | |
2749 | pdata->ether_link_active_low = | |
2750 | of_property_read_bool(np, "renesas,ether-link-active-low"); | |
2751 | ||
2752 | return pdata; | |
2753 | } | |
2754 | ||
2755 | static const struct of_device_id sh_eth_match_table[] = { | |
2756 | { .compatible = "renesas,gether-r8a7740", .data = &r8a7740_data }, | |
2757 | { .compatible = "renesas,ether-r8a7778", .data = &r8a777x_data }, | |
2758 | { .compatible = "renesas,ether-r8a7779", .data = &r8a777x_data }, | |
2759 | { .compatible = "renesas,ether-r8a7790", .data = &r8a779x_data }, | |
2760 | { .compatible = "renesas,ether-r8a7791", .data = &r8a779x_data }, | |
2761 | { .compatible = "renesas,ether-r7s72100", .data = &r7s72100_data }, | |
2762 | { } | |
2763 | }; | |
2764 | MODULE_DEVICE_TABLE(of, sh_eth_match_table); | |
2765 | #else | |
2766 | static inline struct sh_eth_plat_data *sh_eth_parse_dt(struct device *dev) | |
2767 | { | |
2768 | return NULL; | |
2769 | } | |
2770 | #endif | |
2771 | ||
86a74ff2 NI |
2772 | static int sh_eth_drv_probe(struct platform_device *pdev) |
2773 | { | |
9c38657c | 2774 | int ret, devno = 0; |
86a74ff2 NI |
2775 | struct resource *res; |
2776 | struct net_device *ndev = NULL; | |
ec0d7551 | 2777 | struct sh_eth_private *mdp = NULL; |
0b76b862 | 2778 | struct sh_eth_plat_data *pd = dev_get_platdata(&pdev->dev); |
afe391ad | 2779 | const struct platform_device_id *id = platform_get_device_id(pdev); |
86a74ff2 NI |
2780 | |
2781 | /* get base addr */ | |
2782 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
2783 | if (unlikely(res == NULL)) { | |
2784 | dev_err(&pdev->dev, "invalid resource\n"); | |
2785 | ret = -EINVAL; | |
2786 | goto out; | |
2787 | } | |
2788 | ||
2789 | ndev = alloc_etherdev(sizeof(struct sh_eth_private)); | |
2790 | if (!ndev) { | |
86a74ff2 NI |
2791 | ret = -ENOMEM; |
2792 | goto out; | |
2793 | } | |
2794 | ||
2795 | /* The sh Ether-specific entries in the device structure. */ | |
2796 | ndev->base_addr = res->start; | |
2797 | devno = pdev->id; | |
2798 | if (devno < 0) | |
2799 | devno = 0; | |
2800 | ||
2801 | ndev->dma = -1; | |
cc3c080d | 2802 | ret = platform_get_irq(pdev, 0); |
2803 | if (ret < 0) { | |
86a74ff2 NI |
2804 | ret = -ENODEV; |
2805 | goto out_release; | |
2806 | } | |
cc3c080d | 2807 | ndev->irq = ret; |
86a74ff2 NI |
2808 | |
2809 | SET_NETDEV_DEV(ndev, &pdev->dev); | |
2810 | ||
86a74ff2 | 2811 | mdp = netdev_priv(ndev); |
525b8075 YS |
2812 | mdp->num_tx_ring = TX_RING_SIZE; |
2813 | mdp->num_rx_ring = RX_RING_SIZE; | |
d5e07e69 SS |
2814 | mdp->addr = devm_ioremap_resource(&pdev->dev, res); |
2815 | if (IS_ERR(mdp->addr)) { | |
2816 | ret = PTR_ERR(mdp->addr); | |
ae70644d YS |
2817 | goto out_release; |
2818 | } | |
2819 | ||
86a74ff2 | 2820 | spin_lock_init(&mdp->lock); |
bcd5149d MD |
2821 | mdp->pdev = pdev; |
2822 | pm_runtime_enable(&pdev->dev); | |
2823 | pm_runtime_resume(&pdev->dev); | |
86a74ff2 | 2824 | |
b356e978 SS |
2825 | if (pdev->dev.of_node) |
2826 | pd = sh_eth_parse_dt(&pdev->dev); | |
3b4c5cbf SS |
2827 | if (!pd) { |
2828 | dev_err(&pdev->dev, "no platform data\n"); | |
2829 | ret = -EINVAL; | |
2830 | goto out_release; | |
2831 | } | |
2832 | ||
86a74ff2 | 2833 | /* get PHY ID */ |
71557a37 | 2834 | mdp->phy_id = pd->phy; |
e47c9052 | 2835 | mdp->phy_interface = pd->phy_interface; |
71557a37 YS |
2836 | /* EDMAC endian */ |
2837 | mdp->edmac_endian = pd->edmac_endian; | |
4923576b YS |
2838 | mdp->no_ether_link = pd->no_ether_link; |
2839 | mdp->ether_link_active_low = pd->ether_link_active_low; | |
86a74ff2 | 2840 | |
380af9e3 | 2841 | /* set cpu data */ |
b356e978 SS |
2842 | if (id) { |
2843 | mdp->cd = (struct sh_eth_cpu_data *)id->driver_data; | |
2844 | } else { | |
2845 | const struct of_device_id *match; | |
2846 | ||
2847 | match = of_match_device(of_match_ptr(sh_eth_match_table), | |
2848 | &pdev->dev); | |
2849 | mdp->cd = (struct sh_eth_cpu_data *)match->data; | |
2850 | } | |
a3153d8c | 2851 | mdp->reg_offset = sh_eth_get_register_offset(mdp->cd->register_type); |
264be2f5 SS |
2852 | if (!mdp->reg_offset) { |
2853 | dev_err(&pdev->dev, "Unknown register type (%d)\n", | |
2854 | mdp->cd->register_type); | |
2855 | ret = -EINVAL; | |
2856 | goto out_release; | |
2857 | } | |
380af9e3 YS |
2858 | sh_eth_set_default_cpu_data(mdp->cd); |
2859 | ||
86a74ff2 | 2860 | /* set function */ |
8f728d79 SS |
2861 | if (mdp->cd->tsu) |
2862 | ndev->netdev_ops = &sh_eth_netdev_ops_tsu; | |
2863 | else | |
2864 | ndev->netdev_ops = &sh_eth_netdev_ops; | |
dc19e4e5 | 2865 | SET_ETHTOOL_OPS(ndev, &sh_eth_ethtool_ops); |
86a74ff2 NI |
2866 | ndev->watchdog_timeo = TX_TIMEOUT; |
2867 | ||
dc19e4e5 NI |
2868 | /* debug message level */ |
2869 | mdp->msg_enable = SH_ETH_DEF_MSG_ENABLE; | |
86a74ff2 NI |
2870 | |
2871 | /* read and set MAC address */ | |
748031f9 | 2872 | read_mac_address(ndev, pd->mac_addr); |
ff6e7228 SS |
2873 | if (!is_valid_ether_addr(ndev->dev_addr)) { |
2874 | dev_warn(&pdev->dev, | |
2875 | "no valid MAC address supplied, using a random one.\n"); | |
2876 | eth_hw_addr_random(ndev); | |
2877 | } | |
86a74ff2 | 2878 | |
6ba88021 YS |
2879 | /* ioremap the TSU registers */ |
2880 | if (mdp->cd->tsu) { | |
2881 | struct resource *rtsu; | |
2882 | rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1); | |
d5e07e69 SS |
2883 | mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu); |
2884 | if (IS_ERR(mdp->tsu_addr)) { | |
2885 | ret = PTR_ERR(mdp->tsu_addr); | |
fc0c0900 SS |
2886 | goto out_release; |
2887 | } | |
6743fe6d | 2888 | mdp->port = devno % 2; |
f646968f | 2889 | ndev->features = NETIF_F_HW_VLAN_CTAG_FILTER; |
6ba88021 YS |
2890 | } |
2891 | ||
150647fb YS |
2892 | /* initialize first or needed device */ |
2893 | if (!devno || pd->needs_init) { | |
380af9e3 YS |
2894 | if (mdp->cd->chip_reset) |
2895 | mdp->cd->chip_reset(ndev); | |
86a74ff2 | 2896 | |
4986b996 YS |
2897 | if (mdp->cd->tsu) { |
2898 | /* TSU init (Init only)*/ | |
2899 | sh_eth_tsu_init(mdp); | |
2900 | } | |
86a74ff2 NI |
2901 | } |
2902 | ||
3719109d SS |
2903 | netif_napi_add(ndev, &mdp->napi, sh_eth_poll, 64); |
2904 | ||
86a74ff2 NI |
2905 | /* network device register */ |
2906 | ret = register_netdev(ndev); | |
2907 | if (ret) | |
3719109d | 2908 | goto out_napi_del; |
86a74ff2 NI |
2909 | |
2910 | /* mdio bus init */ | |
b3017e6a | 2911 | ret = sh_mdio_init(ndev, pdev->id, pd); |
702eca02 BD |
2912 | if (ret) { |
2913 | dev_err(&ndev->dev, "failed to initialise MDIO\n"); | |
86a74ff2 | 2914 | goto out_unregister; |
702eca02 | 2915 | } |
86a74ff2 | 2916 | |
25985edc | 2917 | /* print device information */ |
f75f14ec SS |
2918 | netdev_info(ndev, "Base address at 0x%x, %pM, IRQ %d.\n", |
2919 | (u32)ndev->base_addr, ndev->dev_addr, ndev->irq); | |
86a74ff2 NI |
2920 | |
2921 | platform_set_drvdata(pdev, ndev); | |
2922 | ||
2923 | return ret; | |
2924 | ||
2925 | out_unregister: | |
2926 | unregister_netdev(ndev); | |
2927 | ||
3719109d SS |
2928 | out_napi_del: |
2929 | netif_napi_del(&mdp->napi); | |
2930 | ||
86a74ff2 NI |
2931 | out_release: |
2932 | /* net_dev free */ | |
2933 | if (ndev) | |
2934 | free_netdev(ndev); | |
2935 | ||
2936 | out: | |
2937 | return ret; | |
2938 | } | |
2939 | ||
2940 | static int sh_eth_drv_remove(struct platform_device *pdev) | |
2941 | { | |
2942 | struct net_device *ndev = platform_get_drvdata(pdev); | |
3719109d | 2943 | struct sh_eth_private *mdp = netdev_priv(ndev); |
86a74ff2 NI |
2944 | |
2945 | sh_mdio_release(ndev); | |
2946 | unregister_netdev(ndev); | |
3719109d | 2947 | netif_napi_del(&mdp->napi); |
bcd5149d | 2948 | pm_runtime_disable(&pdev->dev); |
86a74ff2 | 2949 | free_netdev(ndev); |
86a74ff2 NI |
2950 | |
2951 | return 0; | |
2952 | } | |
2953 | ||
540ad1b8 | 2954 | #ifdef CONFIG_PM |
bcd5149d MD |
2955 | static int sh_eth_runtime_nop(struct device *dev) |
2956 | { | |
128296fc | 2957 | /* Runtime PM callback shared between ->runtime_suspend() |
bcd5149d MD |
2958 | * and ->runtime_resume(). Simply returns success. |
2959 | * | |
2960 | * This driver re-initializes all registers after | |
2961 | * pm_runtime_get_sync() anyway so there is no need | |
2962 | * to save and restore registers here. | |
2963 | */ | |
2964 | return 0; | |
2965 | } | |
2966 | ||
540ad1b8 | 2967 | static const struct dev_pm_ops sh_eth_dev_pm_ops = { |
bcd5149d MD |
2968 | .runtime_suspend = sh_eth_runtime_nop, |
2969 | .runtime_resume = sh_eth_runtime_nop, | |
2970 | }; | |
540ad1b8 NI |
2971 | #define SH_ETH_PM_OPS (&sh_eth_dev_pm_ops) |
2972 | #else | |
2973 | #define SH_ETH_PM_OPS NULL | |
2974 | #endif | |
bcd5149d | 2975 | |
afe391ad | 2976 | static struct platform_device_id sh_eth_id_table[] = { |
c18a79ab | 2977 | { "sh7619-ether", (kernel_ulong_t)&sh7619_data }, |
7bbe150d | 2978 | { "sh771x-ether", (kernel_ulong_t)&sh771x_data }, |
9c3beaab | 2979 | { "sh7724-ether", (kernel_ulong_t)&sh7724_data }, |
f5d12767 | 2980 | { "sh7734-gether", (kernel_ulong_t)&sh7734_data }, |
24549e2a SS |
2981 | { "sh7757-ether", (kernel_ulong_t)&sh7757_data }, |
2982 | { "sh7757-gether", (kernel_ulong_t)&sh7757_data_giga }, | |
f5d12767 | 2983 | { "sh7763-gether", (kernel_ulong_t)&sh7763_data }, |
db893473 | 2984 | { "r7s72100-ether", (kernel_ulong_t)&r7s72100_data }, |
e5c9b4cd | 2985 | { "r8a7740-gether", (kernel_ulong_t)&r8a7740_data }, |
589ebdef | 2986 | { "r8a777x-ether", (kernel_ulong_t)&r8a777x_data }, |
94a12b15 SS |
2987 | { "r8a7790-ether", (kernel_ulong_t)&r8a779x_data }, |
2988 | { "r8a7791-ether", (kernel_ulong_t)&r8a779x_data }, | |
afe391ad SS |
2989 | { } |
2990 | }; | |
2991 | MODULE_DEVICE_TABLE(platform, sh_eth_id_table); | |
2992 | ||
86a74ff2 NI |
2993 | static struct platform_driver sh_eth_driver = { |
2994 | .probe = sh_eth_drv_probe, | |
2995 | .remove = sh_eth_drv_remove, | |
afe391ad | 2996 | .id_table = sh_eth_id_table, |
86a74ff2 NI |
2997 | .driver = { |
2998 | .name = CARDNAME, | |
540ad1b8 | 2999 | .pm = SH_ETH_PM_OPS, |
b356e978 | 3000 | .of_match_table = of_match_ptr(sh_eth_match_table), |
86a74ff2 NI |
3001 | }, |
3002 | }; | |
3003 | ||
db62f684 | 3004 | module_platform_driver(sh_eth_driver); |
86a74ff2 NI |
3005 | |
3006 | MODULE_AUTHOR("Nobuhiro Iwamatsu, Yoshihiro Shimoda"); | |
3007 | MODULE_DESCRIPTION("Renesas SuperH Ethernet driver"); | |
3008 | MODULE_LICENSE("GPL v2"); |