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86a74ff2 NI |
1 | /* |
2 | * SuperH Ethernet device driver | |
3 | * | |
f0e81fec | 4 | * Copyright (C) 2006-2012 Nobuhiro Iwamatsu |
a3f109bd SS |
5 | * Copyright (C) 2008-2013 Renesas Solutions Corp. |
6 | * Copyright (C) 2013 Cogent Embedded, Inc. | |
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. | |
16 | * You should have received a copy of the GNU General Public License along with | |
17 | * this program; if not, write to the Free Software Foundation, Inc., | |
18 | * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
19 | * | |
20 | * The full GNU General Public License is included in this distribution in | |
21 | * the file called "COPYING". | |
22 | */ | |
23 | ||
86a74ff2 | 24 | #include <linux/init.h> |
0654011d YS |
25 | #include <linux/module.h> |
26 | #include <linux/kernel.h> | |
27 | #include <linux/spinlock.h> | |
6a27cded | 28 | #include <linux/interrupt.h> |
86a74ff2 NI |
29 | #include <linux/dma-mapping.h> |
30 | #include <linux/etherdevice.h> | |
31 | #include <linux/delay.h> | |
32 | #include <linux/platform_device.h> | |
33 | #include <linux/mdio-bitbang.h> | |
34 | #include <linux/netdevice.h> | |
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> |
86a74ff2 NI |
44 | |
45 | #include "sh_eth.h" | |
46 | ||
dc19e4e5 NI |
47 | #define SH_ETH_DEF_MSG_ENABLE \ |
48 | (NETIF_MSG_LINK | \ | |
49 | NETIF_MSG_TIMER | \ | |
50 | NETIF_MSG_RX_ERR| \ | |
51 | NETIF_MSG_TX_ERR) | |
52 | ||
c0013f6f SS |
53 | static const u16 sh_eth_offset_gigabit[SH_ETH_MAX_REGISTER_OFFSET] = { |
54 | [EDSR] = 0x0000, | |
55 | [EDMR] = 0x0400, | |
56 | [EDTRR] = 0x0408, | |
57 | [EDRRR] = 0x0410, | |
58 | [EESR] = 0x0428, | |
59 | [EESIPR] = 0x0430, | |
60 | [TDLAR] = 0x0010, | |
61 | [TDFAR] = 0x0014, | |
62 | [TDFXR] = 0x0018, | |
63 | [TDFFR] = 0x001c, | |
64 | [RDLAR] = 0x0030, | |
65 | [RDFAR] = 0x0034, | |
66 | [RDFXR] = 0x0038, | |
67 | [RDFFR] = 0x003c, | |
68 | [TRSCER] = 0x0438, | |
69 | [RMFCR] = 0x0440, | |
70 | [TFTR] = 0x0448, | |
71 | [FDR] = 0x0450, | |
72 | [RMCR] = 0x0458, | |
73 | [RPADIR] = 0x0460, | |
74 | [FCFTR] = 0x0468, | |
75 | [CSMR] = 0x04E4, | |
76 | ||
77 | [ECMR] = 0x0500, | |
78 | [ECSR] = 0x0510, | |
79 | [ECSIPR] = 0x0518, | |
80 | [PIR] = 0x0520, | |
81 | [PSR] = 0x0528, | |
82 | [PIPR] = 0x052c, | |
83 | [RFLR] = 0x0508, | |
84 | [APR] = 0x0554, | |
85 | [MPR] = 0x0558, | |
86 | [PFTCR] = 0x055c, | |
87 | [PFRCR] = 0x0560, | |
88 | [TPAUSER] = 0x0564, | |
89 | [GECMR] = 0x05b0, | |
90 | [BCULR] = 0x05b4, | |
91 | [MAHR] = 0x05c0, | |
92 | [MALR] = 0x05c8, | |
93 | [TROCR] = 0x0700, | |
94 | [CDCR] = 0x0708, | |
95 | [LCCR] = 0x0710, | |
96 | [CEFCR] = 0x0740, | |
97 | [FRECR] = 0x0748, | |
98 | [TSFRCR] = 0x0750, | |
99 | [TLFRCR] = 0x0758, | |
100 | [RFCR] = 0x0760, | |
101 | [CERCR] = 0x0768, | |
102 | [CEECR] = 0x0770, | |
103 | [MAFCR] = 0x0778, | |
104 | [RMII_MII] = 0x0790, | |
105 | ||
106 | [ARSTR] = 0x0000, | |
107 | [TSU_CTRST] = 0x0004, | |
108 | [TSU_FWEN0] = 0x0010, | |
109 | [TSU_FWEN1] = 0x0014, | |
110 | [TSU_FCM] = 0x0018, | |
111 | [TSU_BSYSL0] = 0x0020, | |
112 | [TSU_BSYSL1] = 0x0024, | |
113 | [TSU_PRISL0] = 0x0028, | |
114 | [TSU_PRISL1] = 0x002c, | |
115 | [TSU_FWSL0] = 0x0030, | |
116 | [TSU_FWSL1] = 0x0034, | |
117 | [TSU_FWSLC] = 0x0038, | |
118 | [TSU_QTAG0] = 0x0040, | |
119 | [TSU_QTAG1] = 0x0044, | |
120 | [TSU_FWSR] = 0x0050, | |
121 | [TSU_FWINMK] = 0x0054, | |
122 | [TSU_ADQT0] = 0x0048, | |
123 | [TSU_ADQT1] = 0x004c, | |
124 | [TSU_VTAG0] = 0x0058, | |
125 | [TSU_VTAG1] = 0x005c, | |
126 | [TSU_ADSBSY] = 0x0060, | |
127 | [TSU_TEN] = 0x0064, | |
128 | [TSU_POST1] = 0x0070, | |
129 | [TSU_POST2] = 0x0074, | |
130 | [TSU_POST3] = 0x0078, | |
131 | [TSU_POST4] = 0x007c, | |
132 | [TSU_ADRH0] = 0x0100, | |
133 | [TSU_ADRL0] = 0x0104, | |
134 | [TSU_ADRH31] = 0x01f8, | |
135 | [TSU_ADRL31] = 0x01fc, | |
136 | ||
137 | [TXNLCR0] = 0x0080, | |
138 | [TXALCR0] = 0x0084, | |
139 | [RXNLCR0] = 0x0088, | |
140 | [RXALCR0] = 0x008c, | |
141 | [FWNLCR0] = 0x0090, | |
142 | [FWALCR0] = 0x0094, | |
143 | [TXNLCR1] = 0x00a0, | |
144 | [TXALCR1] = 0x00a0, | |
145 | [RXNLCR1] = 0x00a8, | |
146 | [RXALCR1] = 0x00ac, | |
147 | [FWNLCR1] = 0x00b0, | |
148 | [FWALCR1] = 0x00b4, | |
149 | }; | |
150 | ||
a3f109bd SS |
151 | static const u16 sh_eth_offset_fast_rcar[SH_ETH_MAX_REGISTER_OFFSET] = { |
152 | [ECMR] = 0x0300, | |
153 | [RFLR] = 0x0308, | |
154 | [ECSR] = 0x0310, | |
155 | [ECSIPR] = 0x0318, | |
156 | [PIR] = 0x0320, | |
157 | [PSR] = 0x0328, | |
158 | [RDMLR] = 0x0340, | |
159 | [IPGR] = 0x0350, | |
160 | [APR] = 0x0354, | |
161 | [MPR] = 0x0358, | |
162 | [RFCF] = 0x0360, | |
163 | [TPAUSER] = 0x0364, | |
164 | [TPAUSECR] = 0x0368, | |
165 | [MAHR] = 0x03c0, | |
166 | [MALR] = 0x03c8, | |
167 | [TROCR] = 0x03d0, | |
168 | [CDCR] = 0x03d4, | |
169 | [LCCR] = 0x03d8, | |
170 | [CNDCR] = 0x03dc, | |
171 | [CEFCR] = 0x03e4, | |
172 | [FRECR] = 0x03e8, | |
173 | [TSFRCR] = 0x03ec, | |
174 | [TLFRCR] = 0x03f0, | |
175 | [RFCR] = 0x03f4, | |
176 | [MAFCR] = 0x03f8, | |
177 | ||
178 | [EDMR] = 0x0200, | |
179 | [EDTRR] = 0x0208, | |
180 | [EDRRR] = 0x0210, | |
181 | [TDLAR] = 0x0218, | |
182 | [RDLAR] = 0x0220, | |
183 | [EESR] = 0x0228, | |
184 | [EESIPR] = 0x0230, | |
185 | [TRSCER] = 0x0238, | |
186 | [RMFCR] = 0x0240, | |
187 | [TFTR] = 0x0248, | |
188 | [FDR] = 0x0250, | |
189 | [RMCR] = 0x0258, | |
190 | [TFUCR] = 0x0264, | |
191 | [RFOCR] = 0x0268, | |
192 | [FCFTR] = 0x0270, | |
193 | [TRIMD] = 0x027c, | |
194 | }; | |
195 | ||
c0013f6f SS |
196 | static const u16 sh_eth_offset_fast_sh4[SH_ETH_MAX_REGISTER_OFFSET] = { |
197 | [ECMR] = 0x0100, | |
198 | [RFLR] = 0x0108, | |
199 | [ECSR] = 0x0110, | |
200 | [ECSIPR] = 0x0118, | |
201 | [PIR] = 0x0120, | |
202 | [PSR] = 0x0128, | |
203 | [RDMLR] = 0x0140, | |
204 | [IPGR] = 0x0150, | |
205 | [APR] = 0x0154, | |
206 | [MPR] = 0x0158, | |
207 | [TPAUSER] = 0x0164, | |
208 | [RFCF] = 0x0160, | |
209 | [TPAUSECR] = 0x0168, | |
210 | [BCFRR] = 0x016c, | |
211 | [MAHR] = 0x01c0, | |
212 | [MALR] = 0x01c8, | |
213 | [TROCR] = 0x01d0, | |
214 | [CDCR] = 0x01d4, | |
215 | [LCCR] = 0x01d8, | |
216 | [CNDCR] = 0x01dc, | |
217 | [CEFCR] = 0x01e4, | |
218 | [FRECR] = 0x01e8, | |
219 | [TSFRCR] = 0x01ec, | |
220 | [TLFRCR] = 0x01f0, | |
221 | [RFCR] = 0x01f4, | |
222 | [MAFCR] = 0x01f8, | |
223 | [RTRATE] = 0x01fc, | |
224 | ||
225 | [EDMR] = 0x0000, | |
226 | [EDTRR] = 0x0008, | |
227 | [EDRRR] = 0x0010, | |
228 | [TDLAR] = 0x0018, | |
229 | [RDLAR] = 0x0020, | |
230 | [EESR] = 0x0028, | |
231 | [EESIPR] = 0x0030, | |
232 | [TRSCER] = 0x0038, | |
233 | [RMFCR] = 0x0040, | |
234 | [TFTR] = 0x0048, | |
235 | [FDR] = 0x0050, | |
236 | [RMCR] = 0x0058, | |
237 | [TFUCR] = 0x0064, | |
238 | [RFOCR] = 0x0068, | |
239 | [FCFTR] = 0x0070, | |
240 | [RPADIR] = 0x0078, | |
241 | [TRIMD] = 0x007c, | |
242 | [RBWAR] = 0x00c8, | |
243 | [RDFAR] = 0x00cc, | |
244 | [TBRAR] = 0x00d4, | |
245 | [TDFAR] = 0x00d8, | |
246 | }; | |
247 | ||
248 | static const u16 sh_eth_offset_fast_sh3_sh2[SH_ETH_MAX_REGISTER_OFFSET] = { | |
249 | [ECMR] = 0x0160, | |
250 | [ECSR] = 0x0164, | |
251 | [ECSIPR] = 0x0168, | |
252 | [PIR] = 0x016c, | |
253 | [MAHR] = 0x0170, | |
254 | [MALR] = 0x0174, | |
255 | [RFLR] = 0x0178, | |
256 | [PSR] = 0x017c, | |
257 | [TROCR] = 0x0180, | |
258 | [CDCR] = 0x0184, | |
259 | [LCCR] = 0x0188, | |
260 | [CNDCR] = 0x018c, | |
261 | [CEFCR] = 0x0194, | |
262 | [FRECR] = 0x0198, | |
263 | [TSFRCR] = 0x019c, | |
264 | [TLFRCR] = 0x01a0, | |
265 | [RFCR] = 0x01a4, | |
266 | [MAFCR] = 0x01a8, | |
267 | [IPGR] = 0x01b4, | |
268 | [APR] = 0x01b8, | |
269 | [MPR] = 0x01bc, | |
270 | [TPAUSER] = 0x01c4, | |
271 | [BCFR] = 0x01cc, | |
272 | ||
273 | [ARSTR] = 0x0000, | |
274 | [TSU_CTRST] = 0x0004, | |
275 | [TSU_FWEN0] = 0x0010, | |
276 | [TSU_FWEN1] = 0x0014, | |
277 | [TSU_FCM] = 0x0018, | |
278 | [TSU_BSYSL0] = 0x0020, | |
279 | [TSU_BSYSL1] = 0x0024, | |
280 | [TSU_PRISL0] = 0x0028, | |
281 | [TSU_PRISL1] = 0x002c, | |
282 | [TSU_FWSL0] = 0x0030, | |
283 | [TSU_FWSL1] = 0x0034, | |
284 | [TSU_FWSLC] = 0x0038, | |
285 | [TSU_QTAGM0] = 0x0040, | |
286 | [TSU_QTAGM1] = 0x0044, | |
287 | [TSU_ADQT0] = 0x0048, | |
288 | [TSU_ADQT1] = 0x004c, | |
289 | [TSU_FWSR] = 0x0050, | |
290 | [TSU_FWINMK] = 0x0054, | |
291 | [TSU_ADSBSY] = 0x0060, | |
292 | [TSU_TEN] = 0x0064, | |
293 | [TSU_POST1] = 0x0070, | |
294 | [TSU_POST2] = 0x0074, | |
295 | [TSU_POST3] = 0x0078, | |
296 | [TSU_POST4] = 0x007c, | |
297 | ||
298 | [TXNLCR0] = 0x0080, | |
299 | [TXALCR0] = 0x0084, | |
300 | [RXNLCR0] = 0x0088, | |
301 | [RXALCR0] = 0x008c, | |
302 | [FWNLCR0] = 0x0090, | |
303 | [FWALCR0] = 0x0094, | |
304 | [TXNLCR1] = 0x00a0, | |
305 | [TXALCR1] = 0x00a0, | |
306 | [RXNLCR1] = 0x00a8, | |
307 | [RXALCR1] = 0x00ac, | |
308 | [FWNLCR1] = 0x00b0, | |
309 | [FWALCR1] = 0x00b4, | |
310 | ||
311 | [TSU_ADRH0] = 0x0100, | |
312 | [TSU_ADRL0] = 0x0104, | |
313 | [TSU_ADRL31] = 0x01fc, | |
314 | }; | |
315 | ||
dabdde9e NI |
316 | static int sh_eth_is_gether(struct sh_eth_private *mdp) |
317 | { | |
318 | if (mdp->reg_offset == sh_eth_offset_gigabit) | |
319 | return 1; | |
320 | else | |
321 | return 0; | |
322 | } | |
323 | ||
b7feacf1 | 324 | static void __maybe_unused sh_eth_select_mii(struct net_device *ndev) |
5e7a76be NI |
325 | { |
326 | u32 value = 0x0; | |
327 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
328 | ||
329 | switch (mdp->phy_interface) { | |
330 | case PHY_INTERFACE_MODE_GMII: | |
331 | value = 0x2; | |
332 | break; | |
333 | case PHY_INTERFACE_MODE_MII: | |
334 | value = 0x1; | |
335 | break; | |
336 | case PHY_INTERFACE_MODE_RMII: | |
337 | value = 0x0; | |
338 | break; | |
339 | default: | |
340 | pr_warn("PHY interface mode was not setup. Set to MII.\n"); | |
341 | value = 0x1; | |
342 | break; | |
343 | } | |
344 | ||
345 | sh_eth_write(ndev, value, RMII_MII); | |
346 | } | |
5e7a76be | 347 | |
04b0ed2a | 348 | static void __maybe_unused sh_eth_set_duplex(struct net_device *ndev) |
65ac8851 YS |
349 | { |
350 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
65ac8851 YS |
351 | |
352 | if (mdp->duplex) /* Full */ | |
4a55530f | 353 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_DM, ECMR); |
65ac8851 | 354 | else /* Half */ |
4a55530f | 355 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_DM, ECMR); |
65ac8851 YS |
356 | } |
357 | ||
04b0ed2a NI |
358 | /* There is CPU dependent code */ |
359 | #if defined(CONFIG_ARCH_R8A7778) || defined(CONFIG_ARCH_R8A7779) | |
65ac8851 YS |
360 | static void sh_eth_set_rate(struct net_device *ndev) |
361 | { | |
362 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
d0418bb7 | 363 | |
a3f109bd SS |
364 | switch (mdp->speed) { |
365 | case 10: /* 10BASE */ | |
366 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_ELB, ECMR); | |
367 | break; | |
368 | case 100:/* 100BASE */ | |
369 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_ELB, ECMR); | |
370 | break; | |
371 | default: | |
372 | break; | |
373 | } | |
374 | } | |
375 | ||
674853b2 | 376 | /* R8A7778/9 */ |
a3f109bd SS |
377 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { |
378 | .set_duplex = sh_eth_set_duplex, | |
379 | .set_rate = sh_eth_set_rate, | |
380 | ||
381 | .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, | |
382 | .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, | |
383 | .eesipr_value = 0x01ff009f, | |
384 | ||
385 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
386 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE | | |
387 | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, | |
388 | .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE, | |
389 | ||
390 | .apr = 1, | |
391 | .mpr = 1, | |
392 | .tpauser = 1, | |
393 | .hw_swap = 1, | |
394 | }; | |
395 | #elif defined(CONFIG_CPU_SUBTYPE_SH7724) | |
a3f109bd SS |
396 | |
397 | static void sh_eth_set_rate(struct net_device *ndev) | |
398 | { | |
399 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
65ac8851 YS |
400 | |
401 | switch (mdp->speed) { | |
402 | case 10: /* 10BASE */ | |
a3f109bd | 403 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & ~ECMR_RTM, ECMR); |
65ac8851 YS |
404 | break; |
405 | case 100:/* 100BASE */ | |
a3f109bd | 406 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | ECMR_RTM, ECMR); |
65ac8851 YS |
407 | break; |
408 | default: | |
409 | break; | |
410 | } | |
411 | } | |
412 | ||
413 | /* SH7724 */ | |
414 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { | |
415 | .set_duplex = sh_eth_set_duplex, | |
416 | .set_rate = sh_eth_set_rate, | |
417 | ||
418 | .ecsr_value = ECSR_PSRTO | ECSR_LCHNG | ECSR_ICD, | |
419 | .ecsipr_value = ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | ECSIPR_ICDIP, | |
420 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x01ff009f, | |
421 | ||
422 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
423 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE | | |
424 | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, | |
425 | .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE, | |
426 | ||
427 | .apr = 1, | |
428 | .mpr = 1, | |
429 | .tpauser = 1, | |
430 | .hw_swap = 1, | |
503914cf MD |
431 | .rpadir = 1, |
432 | .rpadir_value = 0x00020000, /* NET_IP_ALIGN assumed to be 2 */ | |
65ac8851 | 433 | }; |
f29a3d04 | 434 | #elif defined(CONFIG_CPU_SUBTYPE_SH7757) |
8fcd4961 | 435 | #define SH_ETH_HAS_BOTH_MODULES 1 |
5cee1d37 | 436 | |
f29a3d04 YS |
437 | static void sh_eth_set_rate(struct net_device *ndev) |
438 | { | |
439 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
f29a3d04 YS |
440 | |
441 | switch (mdp->speed) { | |
442 | case 10: /* 10BASE */ | |
4a55530f | 443 | sh_eth_write(ndev, 0, RTRATE); |
f29a3d04 YS |
444 | break; |
445 | case 100:/* 100BASE */ | |
4a55530f | 446 | sh_eth_write(ndev, 1, RTRATE); |
f29a3d04 YS |
447 | break; |
448 | default: | |
449 | break; | |
450 | } | |
451 | } | |
452 | ||
453 | /* SH7757 */ | |
454 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { | |
455 | .set_duplex = sh_eth_set_duplex, | |
456 | .set_rate = sh_eth_set_rate, | |
457 | ||
458 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
459 | .rmcr_value = 0x00000001, | |
460 | ||
461 | .tx_check = EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO, | |
462 | .eesr_err_check = EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE | | |
463 | EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI, | |
464 | .tx_error_check = EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE, | |
465 | ||
5b3dfd13 | 466 | .irq_flags = IRQF_SHARED, |
f29a3d04 YS |
467 | .apr = 1, |
468 | .mpr = 1, | |
469 | .tpauser = 1, | |
470 | .hw_swap = 1, | |
471 | .no_ade = 1, | |
2e98e797 YS |
472 | .rpadir = 1, |
473 | .rpadir_value = 2 << 16, | |
f29a3d04 | 474 | }; |
65ac8851 | 475 | |
8fcd4961 YS |
476 | #define SH_GIGA_ETH_BASE 0xfee00000 |
477 | #define GIGA_MALR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c8) | |
478 | #define GIGA_MAHR(port) (SH_GIGA_ETH_BASE + 0x800 * (port) + 0x05c0) | |
479 | static void sh_eth_chip_reset_giga(struct net_device *ndev) | |
480 | { | |
481 | int i; | |
482 | unsigned long mahr[2], malr[2]; | |
483 | ||
484 | /* save MAHR and MALR */ | |
485 | for (i = 0; i < 2; i++) { | |
ae70644d YS |
486 | malr[i] = ioread32((void *)GIGA_MALR(i)); |
487 | mahr[i] = ioread32((void *)GIGA_MAHR(i)); | |
8fcd4961 YS |
488 | } |
489 | ||
490 | /* reset device */ | |
ae70644d | 491 | iowrite32(ARSTR_ARSTR, (void *)(SH_GIGA_ETH_BASE + 0x1800)); |
8fcd4961 YS |
492 | mdelay(1); |
493 | ||
494 | /* restore MAHR and MALR */ | |
495 | for (i = 0; i < 2; i++) { | |
ae70644d YS |
496 | iowrite32(malr[i], (void *)GIGA_MALR(i)); |
497 | iowrite32(mahr[i], (void *)GIGA_MAHR(i)); | |
8fcd4961 YS |
498 | } |
499 | } | |
500 | ||
8fcd4961 YS |
501 | static void sh_eth_set_rate_giga(struct net_device *ndev) |
502 | { | |
503 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
504 | ||
505 | switch (mdp->speed) { | |
506 | case 10: /* 10BASE */ | |
507 | sh_eth_write(ndev, 0x00000000, GECMR); | |
508 | break; | |
509 | case 100:/* 100BASE */ | |
510 | sh_eth_write(ndev, 0x00000010, GECMR); | |
511 | break; | |
512 | case 1000: /* 1000BASE */ | |
513 | sh_eth_write(ndev, 0x00000020, GECMR); | |
514 | break; | |
515 | default: | |
516 | break; | |
517 | } | |
518 | } | |
519 | ||
520 | /* SH7757(GETHERC) */ | |
521 | static struct sh_eth_cpu_data sh_eth_my_cpu_data_giga = { | |
522 | .chip_reset = sh_eth_chip_reset_giga, | |
04b0ed2a | 523 | .set_duplex = sh_eth_set_duplex, |
8fcd4961 YS |
524 | .set_rate = sh_eth_set_rate_giga, |
525 | ||
526 | .ecsr_value = ECSR_ICD | ECSR_MPD, | |
527 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
528 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
529 | ||
530 | .tx_check = EESR_TC1 | EESR_FTC, | |
531 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \ | |
532 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \ | |
533 | EESR_ECI, | |
534 | .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \ | |
535 | EESR_TFE, | |
536 | .fdr_value = 0x0000072f, | |
537 | .rmcr_value = 0x00000001, | |
538 | ||
5b3dfd13 | 539 | .irq_flags = IRQF_SHARED, |
8fcd4961 YS |
540 | .apr = 1, |
541 | .mpr = 1, | |
542 | .tpauser = 1, | |
543 | .bculr = 1, | |
544 | .hw_swap = 1, | |
545 | .rpadir = 1, | |
546 | .rpadir_value = 2 << 16, | |
547 | .no_trimd = 1, | |
548 | .no_ade = 1, | |
3acbc971 | 549 | .tsu = 1, |
8fcd4961 YS |
550 | }; |
551 | ||
552 | static struct sh_eth_cpu_data *sh_eth_get_cpu_data(struct sh_eth_private *mdp) | |
553 | { | |
554 | if (sh_eth_is_gether(mdp)) | |
555 | return &sh_eth_my_cpu_data_giga; | |
556 | else | |
557 | return &sh_eth_my_cpu_data; | |
558 | } | |
559 | ||
f0e81fec | 560 | #elif defined(CONFIG_CPU_SUBTYPE_SH7734) || defined(CONFIG_CPU_SUBTYPE_SH7763) |
5e7a76be | 561 | |
380af9e3 YS |
562 | static void sh_eth_chip_reset(struct net_device *ndev) |
563 | { | |
4986b996 YS |
564 | struct sh_eth_private *mdp = netdev_priv(ndev); |
565 | ||
380af9e3 | 566 | /* reset device */ |
4986b996 | 567 | sh_eth_tsu_write(mdp, ARSTR_ARSTR, ARSTR); |
380af9e3 YS |
568 | mdelay(1); |
569 | } | |
570 | ||
380af9e3 YS |
571 | static void sh_eth_set_rate(struct net_device *ndev) |
572 | { | |
573 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
380af9e3 YS |
574 | |
575 | switch (mdp->speed) { | |
576 | case 10: /* 10BASE */ | |
4a55530f | 577 | sh_eth_write(ndev, GECMR_10, GECMR); |
380af9e3 YS |
578 | break; |
579 | case 100:/* 100BASE */ | |
4a55530f | 580 | sh_eth_write(ndev, GECMR_100, GECMR); |
380af9e3 YS |
581 | break; |
582 | case 1000: /* 1000BASE */ | |
4a55530f | 583 | sh_eth_write(ndev, GECMR_1000, GECMR); |
380af9e3 YS |
584 | break; |
585 | default: | |
586 | break; | |
587 | } | |
588 | } | |
589 | ||
590 | /* sh7763 */ | |
591 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { | |
592 | .chip_reset = sh_eth_chip_reset, | |
593 | .set_duplex = sh_eth_set_duplex, | |
594 | .set_rate = sh_eth_set_rate, | |
595 | ||
596 | .ecsr_value = ECSR_ICD | ECSR_MPD, | |
597 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
598 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
599 | ||
600 | .tx_check = EESR_TC1 | EESR_FTC, | |
601 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \ | |
602 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \ | |
603 | EESR_ECI, | |
604 | .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \ | |
605 | EESR_TFE, | |
606 | ||
607 | .apr = 1, | |
608 | .mpr = 1, | |
609 | .tpauser = 1, | |
610 | .bculr = 1, | |
611 | .hw_swap = 1, | |
380af9e3 YS |
612 | .no_trimd = 1, |
613 | .no_ade = 1, | |
4986b996 | 614 | .tsu = 1, |
f0e81fec NI |
615 | #if defined(CONFIG_CPU_SUBTYPE_SH7734) |
616 | .hw_crc = 1, | |
5e7a76be | 617 | .select_mii = 1, |
5b3dfd13 NI |
618 | #else |
619 | .irq_flags = IRQF_SHARED, | |
f0e81fec | 620 | #endif |
380af9e3 YS |
621 | }; |
622 | ||
f0e81fec | 623 | |
73a0d907 | 624 | #elif defined(CONFIG_ARCH_R8A7740) |
5cee1d37 | 625 | |
73a0d907 YS |
626 | static void sh_eth_chip_reset(struct net_device *ndev) |
627 | { | |
628 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
73a0d907 YS |
629 | |
630 | /* reset device */ | |
631 | sh_eth_tsu_write(mdp, ARSTR_ARSTR, ARSTR); | |
632 | mdelay(1); | |
633 | ||
5e7a76be | 634 | sh_eth_select_mii(ndev); |
73a0d907 YS |
635 | } |
636 | ||
73a0d907 YS |
637 | static void sh_eth_set_rate(struct net_device *ndev) |
638 | { | |
639 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
640 | ||
641 | switch (mdp->speed) { | |
642 | case 10: /* 10BASE */ | |
643 | sh_eth_write(ndev, GECMR_10, GECMR); | |
644 | break; | |
645 | case 100:/* 100BASE */ | |
646 | sh_eth_write(ndev, GECMR_100, GECMR); | |
647 | break; | |
648 | case 1000: /* 1000BASE */ | |
649 | sh_eth_write(ndev, GECMR_1000, GECMR); | |
650 | break; | |
651 | default: | |
652 | break; | |
653 | } | |
654 | } | |
655 | ||
656 | /* R8A7740 */ | |
657 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { | |
658 | .chip_reset = sh_eth_chip_reset, | |
659 | .set_duplex = sh_eth_set_duplex, | |
660 | .set_rate = sh_eth_set_rate, | |
661 | ||
662 | .ecsr_value = ECSR_ICD | ECSR_MPD, | |
663 | .ecsipr_value = ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP, | |
664 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
665 | ||
666 | .tx_check = EESR_TC1 | EESR_FTC, | |
667 | .eesr_err_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_RABT | \ | |
668 | EESR_RDE | EESR_RFRMER | EESR_TFE | EESR_TDE | \ | |
669 | EESR_ECI, | |
670 | .tx_error_check = EESR_TWB1 | EESR_TWB | EESR_TABT | EESR_TDE | \ | |
671 | EESR_TFE, | |
672 | ||
673 | .apr = 1, | |
674 | .mpr = 1, | |
675 | .tpauser = 1, | |
676 | .bculr = 1, | |
677 | .hw_swap = 1, | |
678 | .no_trimd = 1, | |
679 | .no_ade = 1, | |
680 | .tsu = 1, | |
5e7a76be | 681 | .select_mii = 1, |
73a0d907 YS |
682 | }; |
683 | ||
380af9e3 | 684 | #elif defined(CONFIG_CPU_SUBTYPE_SH7619) |
380af9e3 YS |
685 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { |
686 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
687 | ||
688 | .apr = 1, | |
689 | .mpr = 1, | |
690 | .tpauser = 1, | |
691 | .hw_swap = 1, | |
692 | }; | |
693 | #elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) | |
380af9e3 YS |
694 | static struct sh_eth_cpu_data sh_eth_my_cpu_data = { |
695 | .eesipr_value = DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff, | |
4986b996 | 696 | .tsu = 1, |
380af9e3 YS |
697 | }; |
698 | #endif | |
699 | ||
700 | static void sh_eth_set_default_cpu_data(struct sh_eth_cpu_data *cd) | |
701 | { | |
702 | if (!cd->ecsr_value) | |
703 | cd->ecsr_value = DEFAULT_ECSR_INIT; | |
704 | ||
705 | if (!cd->ecsipr_value) | |
706 | cd->ecsipr_value = DEFAULT_ECSIPR_INIT; | |
707 | ||
708 | if (!cd->fcftr_value) | |
709 | cd->fcftr_value = DEFAULT_FIFO_F_D_RFF | \ | |
710 | DEFAULT_FIFO_F_D_RFD; | |
711 | ||
712 | if (!cd->fdr_value) | |
713 | cd->fdr_value = DEFAULT_FDR_INIT; | |
714 | ||
715 | if (!cd->rmcr_value) | |
716 | cd->rmcr_value = DEFAULT_RMCR_VALUE; | |
717 | ||
718 | if (!cd->tx_check) | |
719 | cd->tx_check = DEFAULT_TX_CHECK; | |
720 | ||
721 | if (!cd->eesr_err_check) | |
722 | cd->eesr_err_check = DEFAULT_EESR_ERR_CHECK; | |
723 | ||
724 | if (!cd->tx_error_check) | |
725 | cd->tx_error_check = DEFAULT_TX_ERROR_CHECK; | |
726 | } | |
727 | ||
5cee1d37 NI |
728 | static int sh_eth_check_reset(struct net_device *ndev) |
729 | { | |
730 | int ret = 0; | |
731 | int cnt = 100; | |
732 | ||
733 | while (cnt > 0) { | |
734 | if (!(sh_eth_read(ndev, EDMR) & 0x3)) | |
735 | break; | |
736 | mdelay(1); | |
737 | cnt--; | |
738 | } | |
739 | if (cnt < 0) { | |
14c3326a | 740 | pr_err("Device reset fail\n"); |
5cee1d37 NI |
741 | ret = -ETIMEDOUT; |
742 | } | |
743 | return ret; | |
380af9e3 | 744 | } |
dabdde9e NI |
745 | |
746 | static int sh_eth_reset(struct net_device *ndev) | |
747 | { | |
748 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
749 | int ret = 0; | |
750 | ||
751 | if (sh_eth_is_gether(mdp)) { | |
752 | sh_eth_write(ndev, EDSR_ENALL, EDSR); | |
753 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_GETHER, | |
754 | EDMR); | |
755 | ||
756 | ret = sh_eth_check_reset(ndev); | |
757 | if (ret) | |
758 | goto out; | |
759 | ||
760 | /* Table Init */ | |
761 | sh_eth_write(ndev, 0x0, TDLAR); | |
762 | sh_eth_write(ndev, 0x0, TDFAR); | |
763 | sh_eth_write(ndev, 0x0, TDFXR); | |
764 | sh_eth_write(ndev, 0x0, TDFFR); | |
765 | sh_eth_write(ndev, 0x0, RDLAR); | |
766 | sh_eth_write(ndev, 0x0, RDFAR); | |
767 | sh_eth_write(ndev, 0x0, RDFXR); | |
768 | sh_eth_write(ndev, 0x0, RDFFR); | |
769 | ||
770 | /* Reset HW CRC register */ | |
771 | if (mdp->cd->hw_crc) | |
772 | sh_eth_write(ndev, 0x0, CSMR); | |
773 | ||
774 | /* Select MII mode */ | |
775 | if (mdp->cd->select_mii) | |
776 | sh_eth_select_mii(ndev); | |
777 | } else { | |
778 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) | EDMR_SRST_ETHER, | |
779 | EDMR); | |
780 | mdelay(3); | |
781 | sh_eth_write(ndev, sh_eth_read(ndev, EDMR) & ~EDMR_SRST_ETHER, | |
782 | EDMR); | |
783 | } | |
784 | ||
785 | out: | |
786 | return ret; | |
787 | } | |
380af9e3 | 788 | |
73a0d907 | 789 | #if defined(CONFIG_CPU_SH4) || defined(CONFIG_ARCH_SHMOBILE) |
380af9e3 YS |
790 | static void sh_eth_set_receive_align(struct sk_buff *skb) |
791 | { | |
792 | int reserve; | |
793 | ||
794 | reserve = SH4_SKB_RX_ALIGN - ((u32)skb->data & (SH4_SKB_RX_ALIGN - 1)); | |
795 | if (reserve) | |
796 | skb_reserve(skb, reserve); | |
797 | } | |
798 | #else | |
799 | static void sh_eth_set_receive_align(struct sk_buff *skb) | |
800 | { | |
801 | skb_reserve(skb, SH2_SH3_SKB_RX_ALIGN); | |
802 | } | |
803 | #endif | |
804 | ||
805 | ||
71557a37 YS |
806 | /* CPU <-> EDMAC endian convert */ |
807 | static inline __u32 cpu_to_edmac(struct sh_eth_private *mdp, u32 x) | |
808 | { | |
809 | switch (mdp->edmac_endian) { | |
810 | case EDMAC_LITTLE_ENDIAN: | |
811 | return cpu_to_le32(x); | |
812 | case EDMAC_BIG_ENDIAN: | |
813 | return cpu_to_be32(x); | |
814 | } | |
815 | return x; | |
816 | } | |
817 | ||
818 | static inline __u32 edmac_to_cpu(struct sh_eth_private *mdp, u32 x) | |
819 | { | |
820 | switch (mdp->edmac_endian) { | |
821 | case EDMAC_LITTLE_ENDIAN: | |
822 | return le32_to_cpu(x); | |
823 | case EDMAC_BIG_ENDIAN: | |
824 | return be32_to_cpu(x); | |
825 | } | |
826 | return x; | |
827 | } | |
828 | ||
86a74ff2 NI |
829 | /* |
830 | * Program the hardware MAC address from dev->dev_addr. | |
831 | */ | |
832 | static void update_mac_address(struct net_device *ndev) | |
833 | { | |
4a55530f YS |
834 | sh_eth_write(ndev, |
835 | (ndev->dev_addr[0] << 24) | (ndev->dev_addr[1] << 16) | | |
836 | (ndev->dev_addr[2] << 8) | (ndev->dev_addr[3]), MAHR); | |
837 | sh_eth_write(ndev, | |
838 | (ndev->dev_addr[4] << 8) | (ndev->dev_addr[5]), MALR); | |
86a74ff2 NI |
839 | } |
840 | ||
841 | /* | |
842 | * Get MAC address from SuperH MAC address register | |
843 | * | |
844 | * SuperH's Ethernet device doesn't have 'ROM' to MAC address. | |
845 | * This driver get MAC address that use by bootloader(U-boot or sh-ipl+g). | |
846 | * When you want use this device, you must set MAC address in bootloader. | |
847 | * | |
848 | */ | |
748031f9 | 849 | static void read_mac_address(struct net_device *ndev, unsigned char *mac) |
86a74ff2 | 850 | { |
748031f9 MD |
851 | if (mac[0] || mac[1] || mac[2] || mac[3] || mac[4] || mac[5]) { |
852 | memcpy(ndev->dev_addr, mac, 6); | |
853 | } else { | |
4a55530f YS |
854 | ndev->dev_addr[0] = (sh_eth_read(ndev, MAHR) >> 24); |
855 | ndev->dev_addr[1] = (sh_eth_read(ndev, MAHR) >> 16) & 0xFF; | |
856 | ndev->dev_addr[2] = (sh_eth_read(ndev, MAHR) >> 8) & 0xFF; | |
857 | ndev->dev_addr[3] = (sh_eth_read(ndev, MAHR) & 0xFF); | |
858 | ndev->dev_addr[4] = (sh_eth_read(ndev, MALR) >> 8) & 0xFF; | |
859 | ndev->dev_addr[5] = (sh_eth_read(ndev, MALR) & 0xFF); | |
748031f9 | 860 | } |
86a74ff2 NI |
861 | } |
862 | ||
c5ed5368 YS |
863 | static unsigned long sh_eth_get_edtrr_trns(struct sh_eth_private *mdp) |
864 | { | |
865 | if (sh_eth_is_gether(mdp)) | |
866 | return EDTRR_TRNS_GETHER; | |
867 | else | |
868 | return EDTRR_TRNS_ETHER; | |
869 | } | |
870 | ||
86a74ff2 | 871 | struct bb_info { |
ae70644d | 872 | void (*set_gate)(void *addr); |
86a74ff2 | 873 | struct mdiobb_ctrl ctrl; |
ae70644d | 874 | void *addr; |
86a74ff2 NI |
875 | u32 mmd_msk;/* MMD */ |
876 | u32 mdo_msk; | |
877 | u32 mdi_msk; | |
878 | u32 mdc_msk; | |
879 | }; | |
880 | ||
881 | /* PHY bit set */ | |
ae70644d | 882 | static void bb_set(void *addr, u32 msk) |
86a74ff2 | 883 | { |
ae70644d | 884 | iowrite32(ioread32(addr) | msk, addr); |
86a74ff2 NI |
885 | } |
886 | ||
887 | /* PHY bit clear */ | |
ae70644d | 888 | static void bb_clr(void *addr, u32 msk) |
86a74ff2 | 889 | { |
ae70644d | 890 | iowrite32((ioread32(addr) & ~msk), addr); |
86a74ff2 NI |
891 | } |
892 | ||
893 | /* PHY bit read */ | |
ae70644d | 894 | static int bb_read(void *addr, u32 msk) |
86a74ff2 | 895 | { |
ae70644d | 896 | return (ioread32(addr) & msk) != 0; |
86a74ff2 NI |
897 | } |
898 | ||
899 | /* Data I/O pin control */ | |
900 | static void sh_mmd_ctrl(struct mdiobb_ctrl *ctrl, int bit) | |
901 | { | |
902 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
b3017e6a YS |
903 | |
904 | if (bitbang->set_gate) | |
905 | bitbang->set_gate(bitbang->addr); | |
906 | ||
86a74ff2 NI |
907 | if (bit) |
908 | bb_set(bitbang->addr, bitbang->mmd_msk); | |
909 | else | |
910 | bb_clr(bitbang->addr, bitbang->mmd_msk); | |
911 | } | |
912 | ||
913 | /* Set bit data*/ | |
914 | static void sh_set_mdio(struct mdiobb_ctrl *ctrl, int bit) | |
915 | { | |
916 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
917 | ||
b3017e6a YS |
918 | if (bitbang->set_gate) |
919 | bitbang->set_gate(bitbang->addr); | |
920 | ||
86a74ff2 NI |
921 | if (bit) |
922 | bb_set(bitbang->addr, bitbang->mdo_msk); | |
923 | else | |
924 | bb_clr(bitbang->addr, bitbang->mdo_msk); | |
925 | } | |
926 | ||
927 | /* Get bit data*/ | |
928 | static int sh_get_mdio(struct mdiobb_ctrl *ctrl) | |
929 | { | |
930 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
b3017e6a YS |
931 | |
932 | if (bitbang->set_gate) | |
933 | bitbang->set_gate(bitbang->addr); | |
934 | ||
86a74ff2 NI |
935 | return bb_read(bitbang->addr, bitbang->mdi_msk); |
936 | } | |
937 | ||
938 | /* MDC pin control */ | |
939 | static void sh_mdc_ctrl(struct mdiobb_ctrl *ctrl, int bit) | |
940 | { | |
941 | struct bb_info *bitbang = container_of(ctrl, struct bb_info, ctrl); | |
942 | ||
b3017e6a YS |
943 | if (bitbang->set_gate) |
944 | bitbang->set_gate(bitbang->addr); | |
945 | ||
86a74ff2 NI |
946 | if (bit) |
947 | bb_set(bitbang->addr, bitbang->mdc_msk); | |
948 | else | |
949 | bb_clr(bitbang->addr, bitbang->mdc_msk); | |
950 | } | |
951 | ||
952 | /* mdio bus control struct */ | |
953 | static struct mdiobb_ops bb_ops = { | |
954 | .owner = THIS_MODULE, | |
955 | .set_mdc = sh_mdc_ctrl, | |
956 | .set_mdio_dir = sh_mmd_ctrl, | |
957 | .set_mdio_data = sh_set_mdio, | |
958 | .get_mdio_data = sh_get_mdio, | |
959 | }; | |
960 | ||
86a74ff2 NI |
961 | /* free skb and descriptor buffer */ |
962 | static void sh_eth_ring_free(struct net_device *ndev) | |
963 | { | |
964 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
965 | int i; | |
966 | ||
967 | /* Free Rx skb ringbuffer */ | |
968 | if (mdp->rx_skbuff) { | |
525b8075 | 969 | for (i = 0; i < mdp->num_rx_ring; i++) { |
86a74ff2 NI |
970 | if (mdp->rx_skbuff[i]) |
971 | dev_kfree_skb(mdp->rx_skbuff[i]); | |
972 | } | |
973 | } | |
974 | kfree(mdp->rx_skbuff); | |
91c77550 | 975 | mdp->rx_skbuff = NULL; |
86a74ff2 NI |
976 | |
977 | /* Free Tx skb ringbuffer */ | |
978 | if (mdp->tx_skbuff) { | |
525b8075 | 979 | for (i = 0; i < mdp->num_tx_ring; i++) { |
86a74ff2 NI |
980 | if (mdp->tx_skbuff[i]) |
981 | dev_kfree_skb(mdp->tx_skbuff[i]); | |
982 | } | |
983 | } | |
984 | kfree(mdp->tx_skbuff); | |
91c77550 | 985 | mdp->tx_skbuff = NULL; |
86a74ff2 NI |
986 | } |
987 | ||
988 | /* format skb and descriptor buffer */ | |
989 | static void sh_eth_ring_format(struct net_device *ndev) | |
990 | { | |
991 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
992 | int i; | |
993 | struct sk_buff *skb; | |
994 | struct sh_eth_rxdesc *rxdesc = NULL; | |
995 | struct sh_eth_txdesc *txdesc = NULL; | |
525b8075 YS |
996 | int rx_ringsize = sizeof(*rxdesc) * mdp->num_rx_ring; |
997 | int tx_ringsize = sizeof(*txdesc) * mdp->num_tx_ring; | |
86a74ff2 NI |
998 | |
999 | mdp->cur_rx = mdp->cur_tx = 0; | |
1000 | mdp->dirty_rx = mdp->dirty_tx = 0; | |
1001 | ||
1002 | memset(mdp->rx_ring, 0, rx_ringsize); | |
1003 | ||
1004 | /* build Rx ring buffer */ | |
525b8075 | 1005 | for (i = 0; i < mdp->num_rx_ring; i++) { |
86a74ff2 NI |
1006 | /* skb */ |
1007 | mdp->rx_skbuff[i] = NULL; | |
dae2e9f4 | 1008 | skb = netdev_alloc_skb(ndev, mdp->rx_buf_sz); |
86a74ff2 NI |
1009 | mdp->rx_skbuff[i] = skb; |
1010 | if (skb == NULL) | |
1011 | break; | |
bb7d92e3 | 1012 | dma_map_single(&ndev->dev, skb->data, mdp->rx_buf_sz, |
e88aae7b | 1013 | DMA_FROM_DEVICE); |
380af9e3 YS |
1014 | sh_eth_set_receive_align(skb); |
1015 | ||
86a74ff2 NI |
1016 | /* RX descriptor */ |
1017 | rxdesc = &mdp->rx_ring[i]; | |
0029d64a | 1018 | rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4)); |
71557a37 | 1019 | rxdesc->status = cpu_to_edmac(mdp, RD_RACT | RD_RFP); |
86a74ff2 NI |
1020 | |
1021 | /* The size of the buffer is 16 byte boundary. */ | |
0029d64a | 1022 | rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16); |
b0ca2a21 NI |
1023 | /* Rx descriptor address set */ |
1024 | if (i == 0) { | |
4a55530f | 1025 | sh_eth_write(ndev, mdp->rx_desc_dma, RDLAR); |
c5ed5368 YS |
1026 | if (sh_eth_is_gether(mdp)) |
1027 | sh_eth_write(ndev, mdp->rx_desc_dma, RDFAR); | |
b0ca2a21 | 1028 | } |
86a74ff2 NI |
1029 | } |
1030 | ||
525b8075 | 1031 | mdp->dirty_rx = (u32) (i - mdp->num_rx_ring); |
86a74ff2 NI |
1032 | |
1033 | /* Mark the last entry as wrapping the ring. */ | |
71557a37 | 1034 | rxdesc->status |= cpu_to_edmac(mdp, RD_RDEL); |
86a74ff2 NI |
1035 | |
1036 | memset(mdp->tx_ring, 0, tx_ringsize); | |
1037 | ||
1038 | /* build Tx ring buffer */ | |
525b8075 | 1039 | for (i = 0; i < mdp->num_tx_ring; i++) { |
86a74ff2 NI |
1040 | mdp->tx_skbuff[i] = NULL; |
1041 | txdesc = &mdp->tx_ring[i]; | |
71557a37 | 1042 | txdesc->status = cpu_to_edmac(mdp, TD_TFP); |
86a74ff2 | 1043 | txdesc->buffer_length = 0; |
b0ca2a21 | 1044 | if (i == 0) { |
71557a37 | 1045 | /* Tx descriptor address set */ |
4a55530f | 1046 | sh_eth_write(ndev, mdp->tx_desc_dma, TDLAR); |
c5ed5368 YS |
1047 | if (sh_eth_is_gether(mdp)) |
1048 | sh_eth_write(ndev, mdp->tx_desc_dma, TDFAR); | |
b0ca2a21 | 1049 | } |
86a74ff2 NI |
1050 | } |
1051 | ||
71557a37 | 1052 | txdesc->status |= cpu_to_edmac(mdp, TD_TDLE); |
86a74ff2 NI |
1053 | } |
1054 | ||
1055 | /* Get skb and descriptor buffer */ | |
1056 | static int sh_eth_ring_init(struct net_device *ndev) | |
1057 | { | |
1058 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1059 | int rx_ringsize, tx_ringsize, ret = 0; | |
1060 | ||
1061 | /* | |
1062 | * +26 gets the maximum ethernet encapsulation, +7 & ~7 because the | |
1063 | * card needs room to do 8 byte alignment, +2 so we can reserve | |
1064 | * the first 2 bytes, and +16 gets room for the status word from the | |
1065 | * card. | |
1066 | */ | |
1067 | mdp->rx_buf_sz = (ndev->mtu <= 1492 ? PKT_BUF_SZ : | |
1068 | (((ndev->mtu + 26 + 7) & ~7) + 2 + 16)); | |
503914cf MD |
1069 | if (mdp->cd->rpadir) |
1070 | mdp->rx_buf_sz += NET_IP_ALIGN; | |
86a74ff2 NI |
1071 | |
1072 | /* Allocate RX and TX skb rings */ | |
b2adaca9 JP |
1073 | mdp->rx_skbuff = kmalloc_array(mdp->num_rx_ring, |
1074 | sizeof(*mdp->rx_skbuff), GFP_KERNEL); | |
86a74ff2 | 1075 | if (!mdp->rx_skbuff) { |
86a74ff2 NI |
1076 | ret = -ENOMEM; |
1077 | return ret; | |
1078 | } | |
1079 | ||
b2adaca9 JP |
1080 | mdp->tx_skbuff = kmalloc_array(mdp->num_tx_ring, |
1081 | sizeof(*mdp->tx_skbuff), GFP_KERNEL); | |
86a74ff2 | 1082 | if (!mdp->tx_skbuff) { |
86a74ff2 NI |
1083 | ret = -ENOMEM; |
1084 | goto skb_ring_free; | |
1085 | } | |
1086 | ||
1087 | /* Allocate all Rx descriptors. */ | |
525b8075 | 1088 | rx_ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring; |
86a74ff2 | 1089 | mdp->rx_ring = dma_alloc_coherent(NULL, rx_ringsize, &mdp->rx_desc_dma, |
d0320f75 | 1090 | GFP_KERNEL); |
86a74ff2 | 1091 | if (!mdp->rx_ring) { |
86a74ff2 NI |
1092 | ret = -ENOMEM; |
1093 | goto desc_ring_free; | |
1094 | } | |
1095 | ||
1096 | mdp->dirty_rx = 0; | |
1097 | ||
1098 | /* Allocate all Tx descriptors. */ | |
525b8075 | 1099 | tx_ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring; |
86a74ff2 | 1100 | mdp->tx_ring = dma_alloc_coherent(NULL, tx_ringsize, &mdp->tx_desc_dma, |
d0320f75 | 1101 | GFP_KERNEL); |
86a74ff2 | 1102 | if (!mdp->tx_ring) { |
86a74ff2 NI |
1103 | ret = -ENOMEM; |
1104 | goto desc_ring_free; | |
1105 | } | |
1106 | return ret; | |
1107 | ||
1108 | desc_ring_free: | |
1109 | /* free DMA buffer */ | |
1110 | dma_free_coherent(NULL, rx_ringsize, mdp->rx_ring, mdp->rx_desc_dma); | |
1111 | ||
1112 | skb_ring_free: | |
1113 | /* Free Rx and Tx skb ring buffer */ | |
1114 | sh_eth_ring_free(ndev); | |
91c77550 YS |
1115 | mdp->tx_ring = NULL; |
1116 | mdp->rx_ring = NULL; | |
86a74ff2 NI |
1117 | |
1118 | return ret; | |
1119 | } | |
1120 | ||
91c77550 YS |
1121 | static void sh_eth_free_dma_buffer(struct sh_eth_private *mdp) |
1122 | { | |
1123 | int ringsize; | |
1124 | ||
1125 | if (mdp->rx_ring) { | |
525b8075 | 1126 | ringsize = sizeof(struct sh_eth_rxdesc) * mdp->num_rx_ring; |
91c77550 YS |
1127 | dma_free_coherent(NULL, ringsize, mdp->rx_ring, |
1128 | mdp->rx_desc_dma); | |
1129 | mdp->rx_ring = NULL; | |
1130 | } | |
1131 | ||
1132 | if (mdp->tx_ring) { | |
525b8075 | 1133 | ringsize = sizeof(struct sh_eth_txdesc) * mdp->num_tx_ring; |
91c77550 YS |
1134 | dma_free_coherent(NULL, ringsize, mdp->tx_ring, |
1135 | mdp->tx_desc_dma); | |
1136 | mdp->tx_ring = NULL; | |
1137 | } | |
1138 | } | |
1139 | ||
525b8075 | 1140 | static int sh_eth_dev_init(struct net_device *ndev, bool start) |
86a74ff2 NI |
1141 | { |
1142 | int ret = 0; | |
1143 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
1144 | u32 val; |
1145 | ||
1146 | /* Soft Reset */ | |
5cee1d37 NI |
1147 | ret = sh_eth_reset(ndev); |
1148 | if (ret) | |
1149 | goto out; | |
86a74ff2 | 1150 | |
b0ca2a21 NI |
1151 | /* Descriptor format */ |
1152 | sh_eth_ring_format(ndev); | |
380af9e3 | 1153 | if (mdp->cd->rpadir) |
4a55530f | 1154 | sh_eth_write(ndev, mdp->cd->rpadir_value, RPADIR); |
86a74ff2 NI |
1155 | |
1156 | /* all sh_eth int mask */ | |
4a55530f | 1157 | sh_eth_write(ndev, 0, EESIPR); |
86a74ff2 | 1158 | |
10b9194f | 1159 | #if defined(__LITTLE_ENDIAN) |
380af9e3 | 1160 | if (mdp->cd->hw_swap) |
4a55530f | 1161 | sh_eth_write(ndev, EDMR_EL, EDMR); |
380af9e3 | 1162 | else |
b0ca2a21 | 1163 | #endif |
4a55530f | 1164 | sh_eth_write(ndev, 0, EDMR); |
86a74ff2 | 1165 | |
b0ca2a21 | 1166 | /* FIFO size set */ |
4a55530f YS |
1167 | sh_eth_write(ndev, mdp->cd->fdr_value, FDR); |
1168 | sh_eth_write(ndev, 0, TFTR); | |
86a74ff2 | 1169 | |
b0ca2a21 | 1170 | /* Frame recv control */ |
4a55530f | 1171 | sh_eth_write(ndev, mdp->cd->rmcr_value, RMCR); |
86a74ff2 | 1172 | |
2ecbb783 | 1173 | sh_eth_write(ndev, DESC_I_RINT8 | DESC_I_RINT5 | DESC_I_TINT2, TRSCER); |
86a74ff2 | 1174 | |
380af9e3 | 1175 | if (mdp->cd->bculr) |
4a55530f | 1176 | sh_eth_write(ndev, 0x800, BCULR); /* Burst sycle set */ |
b0ca2a21 | 1177 | |
4a55530f | 1178 | sh_eth_write(ndev, mdp->cd->fcftr_value, FCFTR); |
86a74ff2 | 1179 | |
380af9e3 | 1180 | if (!mdp->cd->no_trimd) |
4a55530f | 1181 | sh_eth_write(ndev, 0, TRIMD); |
86a74ff2 | 1182 | |
b0ca2a21 | 1183 | /* Recv frame limit set register */ |
fdb37a7f YS |
1184 | sh_eth_write(ndev, ndev->mtu + ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN, |
1185 | RFLR); | |
86a74ff2 | 1186 | |
4a55530f | 1187 | sh_eth_write(ndev, sh_eth_read(ndev, EESR), EESR); |
525b8075 YS |
1188 | if (start) |
1189 | sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); | |
86a74ff2 NI |
1190 | |
1191 | /* PAUSE Prohibition */ | |
4a55530f | 1192 | val = (sh_eth_read(ndev, ECMR) & ECMR_DM) | |
86a74ff2 NI |
1193 | ECMR_ZPF | (mdp->duplex ? ECMR_DM : 0) | ECMR_TE | ECMR_RE; |
1194 | ||
4a55530f | 1195 | sh_eth_write(ndev, val, ECMR); |
b0ca2a21 | 1196 | |
380af9e3 YS |
1197 | if (mdp->cd->set_rate) |
1198 | mdp->cd->set_rate(ndev); | |
1199 | ||
b0ca2a21 | 1200 | /* E-MAC Status Register clear */ |
4a55530f | 1201 | sh_eth_write(ndev, mdp->cd->ecsr_value, ECSR); |
b0ca2a21 NI |
1202 | |
1203 | /* E-MAC Interrupt Enable register */ | |
525b8075 YS |
1204 | if (start) |
1205 | sh_eth_write(ndev, mdp->cd->ecsipr_value, ECSIPR); | |
86a74ff2 NI |
1206 | |
1207 | /* Set MAC address */ | |
1208 | update_mac_address(ndev); | |
1209 | ||
1210 | /* mask reset */ | |
380af9e3 | 1211 | if (mdp->cd->apr) |
4a55530f | 1212 | sh_eth_write(ndev, APR_AP, APR); |
380af9e3 | 1213 | if (mdp->cd->mpr) |
4a55530f | 1214 | sh_eth_write(ndev, MPR_MP, MPR); |
380af9e3 | 1215 | if (mdp->cd->tpauser) |
4a55530f | 1216 | sh_eth_write(ndev, TPAUSER_UNLIMITED, TPAUSER); |
b0ca2a21 | 1217 | |
525b8075 YS |
1218 | if (start) { |
1219 | /* Setting the Rx mode will start the Rx process. */ | |
1220 | sh_eth_write(ndev, EDRRR_R, EDRRR); | |
86a74ff2 | 1221 | |
525b8075 YS |
1222 | netif_start_queue(ndev); |
1223 | } | |
86a74ff2 | 1224 | |
5cee1d37 | 1225 | out: |
86a74ff2 NI |
1226 | return ret; |
1227 | } | |
1228 | ||
1229 | /* free Tx skb function */ | |
1230 | static int sh_eth_txfree(struct net_device *ndev) | |
1231 | { | |
1232 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1233 | struct sh_eth_txdesc *txdesc; | |
1234 | int freeNum = 0; | |
1235 | int entry = 0; | |
1236 | ||
1237 | for (; mdp->cur_tx - mdp->dirty_tx > 0; mdp->dirty_tx++) { | |
525b8075 | 1238 | entry = mdp->dirty_tx % mdp->num_tx_ring; |
86a74ff2 | 1239 | txdesc = &mdp->tx_ring[entry]; |
71557a37 | 1240 | if (txdesc->status & cpu_to_edmac(mdp, TD_TACT)) |
86a74ff2 NI |
1241 | break; |
1242 | /* Free the original skb. */ | |
1243 | if (mdp->tx_skbuff[entry]) { | |
31fcb99d YS |
1244 | dma_unmap_single(&ndev->dev, txdesc->addr, |
1245 | txdesc->buffer_length, DMA_TO_DEVICE); | |
86a74ff2 NI |
1246 | dev_kfree_skb_irq(mdp->tx_skbuff[entry]); |
1247 | mdp->tx_skbuff[entry] = NULL; | |
1248 | freeNum++; | |
1249 | } | |
71557a37 | 1250 | txdesc->status = cpu_to_edmac(mdp, TD_TFP); |
525b8075 | 1251 | if (entry >= mdp->num_tx_ring - 1) |
71557a37 | 1252 | txdesc->status |= cpu_to_edmac(mdp, TD_TDLE); |
86a74ff2 | 1253 | |
bb7d92e3 ED |
1254 | ndev->stats.tx_packets++; |
1255 | ndev->stats.tx_bytes += txdesc->buffer_length; | |
86a74ff2 NI |
1256 | } |
1257 | return freeNum; | |
1258 | } | |
1259 | ||
1260 | /* Packet receive function */ | |
a18e08bd | 1261 | static int sh_eth_rx(struct net_device *ndev, u32 intr_status) |
86a74ff2 NI |
1262 | { |
1263 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1264 | struct sh_eth_rxdesc *rxdesc; | |
1265 | ||
525b8075 YS |
1266 | int entry = mdp->cur_rx % mdp->num_rx_ring; |
1267 | int boguscnt = (mdp->dirty_rx + mdp->num_rx_ring) - mdp->cur_rx; | |
86a74ff2 NI |
1268 | struct sk_buff *skb; |
1269 | u16 pkt_len = 0; | |
380af9e3 | 1270 | u32 desc_status; |
86a74ff2 NI |
1271 | |
1272 | rxdesc = &mdp->rx_ring[entry]; | |
71557a37 YS |
1273 | while (!(rxdesc->status & cpu_to_edmac(mdp, RD_RACT))) { |
1274 | desc_status = edmac_to_cpu(mdp, rxdesc->status); | |
86a74ff2 NI |
1275 | pkt_len = rxdesc->frame_length; |
1276 | ||
73a0d907 YS |
1277 | #if defined(CONFIG_ARCH_R8A7740) |
1278 | desc_status >>= 16; | |
1279 | #endif | |
1280 | ||
86a74ff2 NI |
1281 | if (--boguscnt < 0) |
1282 | break; | |
1283 | ||
1284 | if (!(desc_status & RDFEND)) | |
bb7d92e3 | 1285 | ndev->stats.rx_length_errors++; |
86a74ff2 NI |
1286 | |
1287 | if (desc_status & (RD_RFS1 | RD_RFS2 | RD_RFS3 | RD_RFS4 | | |
1288 | RD_RFS5 | RD_RFS6 | RD_RFS10)) { | |
bb7d92e3 | 1289 | ndev->stats.rx_errors++; |
86a74ff2 | 1290 | if (desc_status & RD_RFS1) |
bb7d92e3 | 1291 | ndev->stats.rx_crc_errors++; |
86a74ff2 | 1292 | if (desc_status & RD_RFS2) |
bb7d92e3 | 1293 | ndev->stats.rx_frame_errors++; |
86a74ff2 | 1294 | if (desc_status & RD_RFS3) |
bb7d92e3 | 1295 | ndev->stats.rx_length_errors++; |
86a74ff2 | 1296 | if (desc_status & RD_RFS4) |
bb7d92e3 | 1297 | ndev->stats.rx_length_errors++; |
86a74ff2 | 1298 | if (desc_status & RD_RFS6) |
bb7d92e3 | 1299 | ndev->stats.rx_missed_errors++; |
86a74ff2 | 1300 | if (desc_status & RD_RFS10) |
bb7d92e3 | 1301 | ndev->stats.rx_over_errors++; |
86a74ff2 | 1302 | } else { |
380af9e3 YS |
1303 | if (!mdp->cd->hw_swap) |
1304 | sh_eth_soft_swap( | |
1305 | phys_to_virt(ALIGN(rxdesc->addr, 4)), | |
1306 | pkt_len + 2); | |
86a74ff2 NI |
1307 | skb = mdp->rx_skbuff[entry]; |
1308 | mdp->rx_skbuff[entry] = NULL; | |
503914cf MD |
1309 | if (mdp->cd->rpadir) |
1310 | skb_reserve(skb, NET_IP_ALIGN); | |
86a74ff2 NI |
1311 | skb_put(skb, pkt_len); |
1312 | skb->protocol = eth_type_trans(skb, ndev); | |
1313 | netif_rx(skb); | |
bb7d92e3 ED |
1314 | ndev->stats.rx_packets++; |
1315 | ndev->stats.rx_bytes += pkt_len; | |
86a74ff2 | 1316 | } |
71557a37 | 1317 | rxdesc->status |= cpu_to_edmac(mdp, RD_RACT); |
525b8075 | 1318 | entry = (++mdp->cur_rx) % mdp->num_rx_ring; |
862df497 | 1319 | rxdesc = &mdp->rx_ring[entry]; |
86a74ff2 NI |
1320 | } |
1321 | ||
1322 | /* Refill the Rx ring buffers. */ | |
1323 | for (; mdp->cur_rx - mdp->dirty_rx > 0; mdp->dirty_rx++) { | |
525b8075 | 1324 | entry = mdp->dirty_rx % mdp->num_rx_ring; |
86a74ff2 | 1325 | rxdesc = &mdp->rx_ring[entry]; |
b0ca2a21 | 1326 | /* The size of the buffer is 16 byte boundary. */ |
0029d64a | 1327 | rxdesc->buffer_length = ALIGN(mdp->rx_buf_sz, 16); |
b0ca2a21 | 1328 | |
86a74ff2 | 1329 | if (mdp->rx_skbuff[entry] == NULL) { |
dae2e9f4 | 1330 | skb = netdev_alloc_skb(ndev, mdp->rx_buf_sz); |
86a74ff2 NI |
1331 | mdp->rx_skbuff[entry] = skb; |
1332 | if (skb == NULL) | |
1333 | break; /* Better luck next round. */ | |
bb7d92e3 | 1334 | dma_map_single(&ndev->dev, skb->data, mdp->rx_buf_sz, |
e88aae7b | 1335 | DMA_FROM_DEVICE); |
380af9e3 YS |
1336 | sh_eth_set_receive_align(skb); |
1337 | ||
bc8acf2c | 1338 | skb_checksum_none_assert(skb); |
0029d64a | 1339 | rxdesc->addr = virt_to_phys(PTR_ALIGN(skb->data, 4)); |
86a74ff2 | 1340 | } |
525b8075 | 1341 | if (entry >= mdp->num_rx_ring - 1) |
86a74ff2 | 1342 | rxdesc->status |= |
71557a37 | 1343 | cpu_to_edmac(mdp, RD_RACT | RD_RFP | RD_RDEL); |
86a74ff2 NI |
1344 | else |
1345 | rxdesc->status |= | |
71557a37 | 1346 | cpu_to_edmac(mdp, RD_RACT | RD_RFP); |
86a74ff2 NI |
1347 | } |
1348 | ||
1349 | /* Restart Rx engine if stopped. */ | |
1350 | /* If we don't need to check status, don't. -KDU */ | |
79fba9f5 | 1351 | if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) { |
a18e08bd YS |
1352 | /* fix the values for the next receiving if RDE is set */ |
1353 | if (intr_status & EESR_RDE) | |
1354 | mdp->cur_rx = mdp->dirty_rx = | |
1355 | (sh_eth_read(ndev, RDFAR) - | |
1356 | sh_eth_read(ndev, RDLAR)) >> 4; | |
4a55530f | 1357 | sh_eth_write(ndev, EDRRR_R, EDRRR); |
79fba9f5 | 1358 | } |
86a74ff2 NI |
1359 | |
1360 | return 0; | |
1361 | } | |
1362 | ||
4a55530f | 1363 | static void sh_eth_rcv_snd_disable(struct net_device *ndev) |
dc19e4e5 NI |
1364 | { |
1365 | /* disable tx and rx */ | |
4a55530f YS |
1366 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) & |
1367 | ~(ECMR_RE | ECMR_TE), ECMR); | |
dc19e4e5 NI |
1368 | } |
1369 | ||
4a55530f | 1370 | static void sh_eth_rcv_snd_enable(struct net_device *ndev) |
dc19e4e5 NI |
1371 | { |
1372 | /* enable tx and rx */ | |
4a55530f YS |
1373 | sh_eth_write(ndev, sh_eth_read(ndev, ECMR) | |
1374 | (ECMR_RE | ECMR_TE), ECMR); | |
dc19e4e5 NI |
1375 | } |
1376 | ||
86a74ff2 NI |
1377 | /* error control function */ |
1378 | static void sh_eth_error(struct net_device *ndev, int intr_status) | |
1379 | { | |
1380 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 | 1381 | u32 felic_stat; |
380af9e3 YS |
1382 | u32 link_stat; |
1383 | u32 mask; | |
86a74ff2 NI |
1384 | |
1385 | if (intr_status & EESR_ECI) { | |
4a55530f YS |
1386 | felic_stat = sh_eth_read(ndev, ECSR); |
1387 | sh_eth_write(ndev, felic_stat, ECSR); /* clear int */ | |
86a74ff2 | 1388 | if (felic_stat & ECSR_ICD) |
bb7d92e3 | 1389 | ndev->stats.tx_carrier_errors++; |
86a74ff2 NI |
1390 | if (felic_stat & ECSR_LCHNG) { |
1391 | /* Link Changed */ | |
4923576b | 1392 | if (mdp->cd->no_psr || mdp->no_ether_link) { |
1e1b812b | 1393 | goto ignore_link; |
380af9e3 | 1394 | } else { |
4a55530f | 1395 | link_stat = (sh_eth_read(ndev, PSR)); |
4923576b YS |
1396 | if (mdp->ether_link_active_low) |
1397 | link_stat = ~link_stat; | |
380af9e3 | 1398 | } |
dc19e4e5 | 1399 | if (!(link_stat & PHY_ST_LINK)) |
4a55530f | 1400 | sh_eth_rcv_snd_disable(ndev); |
dc19e4e5 | 1401 | else { |
86a74ff2 | 1402 | /* Link Up */ |
4a55530f YS |
1403 | sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) & |
1404 | ~DMAC_M_ECI, EESIPR); | |
86a74ff2 | 1405 | /*clear int */ |
4a55530f YS |
1406 | sh_eth_write(ndev, sh_eth_read(ndev, ECSR), |
1407 | ECSR); | |
1408 | sh_eth_write(ndev, sh_eth_read(ndev, EESIPR) | | |
1409 | DMAC_M_ECI, EESIPR); | |
86a74ff2 | 1410 | /* enable tx and rx */ |
4a55530f | 1411 | sh_eth_rcv_snd_enable(ndev); |
86a74ff2 NI |
1412 | } |
1413 | } | |
1414 | } | |
1415 | ||
1e1b812b | 1416 | ignore_link: |
86a74ff2 NI |
1417 | if (intr_status & EESR_TWB) { |
1418 | /* Write buck end. unused write back interrupt */ | |
1419 | if (intr_status & EESR_TABT) /* Transmit Abort int */ | |
bb7d92e3 | 1420 | ndev->stats.tx_aborted_errors++; |
dc19e4e5 NI |
1421 | if (netif_msg_tx_err(mdp)) |
1422 | dev_err(&ndev->dev, "Transmit Abort\n"); | |
86a74ff2 NI |
1423 | } |
1424 | ||
1425 | if (intr_status & EESR_RABT) { | |
1426 | /* Receive Abort int */ | |
1427 | if (intr_status & EESR_RFRMER) { | |
1428 | /* Receive Frame Overflow int */ | |
bb7d92e3 | 1429 | ndev->stats.rx_frame_errors++; |
dc19e4e5 NI |
1430 | if (netif_msg_rx_err(mdp)) |
1431 | dev_err(&ndev->dev, "Receive Abort\n"); | |
86a74ff2 NI |
1432 | } |
1433 | } | |
380af9e3 | 1434 | |
dc19e4e5 NI |
1435 | if (intr_status & EESR_TDE) { |
1436 | /* Transmit Descriptor Empty int */ | |
bb7d92e3 | 1437 | ndev->stats.tx_fifo_errors++; |
dc19e4e5 NI |
1438 | if (netif_msg_tx_err(mdp)) |
1439 | dev_err(&ndev->dev, "Transmit Descriptor Empty\n"); | |
1440 | } | |
1441 | ||
1442 | if (intr_status & EESR_TFE) { | |
1443 | /* FIFO under flow */ | |
bb7d92e3 | 1444 | ndev->stats.tx_fifo_errors++; |
dc19e4e5 NI |
1445 | if (netif_msg_tx_err(mdp)) |
1446 | dev_err(&ndev->dev, "Transmit FIFO Under flow\n"); | |
86a74ff2 NI |
1447 | } |
1448 | ||
1449 | if (intr_status & EESR_RDE) { | |
1450 | /* Receive Descriptor Empty int */ | |
bb7d92e3 | 1451 | ndev->stats.rx_over_errors++; |
86a74ff2 | 1452 | |
dc19e4e5 NI |
1453 | if (netif_msg_rx_err(mdp)) |
1454 | dev_err(&ndev->dev, "Receive Descriptor Empty\n"); | |
86a74ff2 | 1455 | } |
dc19e4e5 | 1456 | |
86a74ff2 NI |
1457 | if (intr_status & EESR_RFE) { |
1458 | /* Receive FIFO Overflow int */ | |
bb7d92e3 | 1459 | ndev->stats.rx_fifo_errors++; |
dc19e4e5 NI |
1460 | if (netif_msg_rx_err(mdp)) |
1461 | dev_err(&ndev->dev, "Receive FIFO Overflow\n"); | |
1462 | } | |
1463 | ||
1464 | if (!mdp->cd->no_ade && (intr_status & EESR_ADE)) { | |
1465 | /* Address Error */ | |
bb7d92e3 | 1466 | ndev->stats.tx_fifo_errors++; |
dc19e4e5 NI |
1467 | if (netif_msg_tx_err(mdp)) |
1468 | dev_err(&ndev->dev, "Address Error\n"); | |
86a74ff2 | 1469 | } |
380af9e3 YS |
1470 | |
1471 | mask = EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | EESR_TFE; | |
1472 | if (mdp->cd->no_ade) | |
1473 | mask &= ~EESR_ADE; | |
1474 | if (intr_status & mask) { | |
86a74ff2 | 1475 | /* Tx error */ |
4a55530f | 1476 | u32 edtrr = sh_eth_read(ndev, EDTRR); |
86a74ff2 | 1477 | /* dmesg */ |
380af9e3 YS |
1478 | dev_err(&ndev->dev, "TX error. status=%8.8x cur_tx=%8.8x ", |
1479 | intr_status, mdp->cur_tx); | |
1480 | dev_err(&ndev->dev, "dirty_tx=%8.8x state=%8.8x EDTRR=%8.8x.\n", | |
86a74ff2 NI |
1481 | mdp->dirty_tx, (u32) ndev->state, edtrr); |
1482 | /* dirty buffer free */ | |
1483 | sh_eth_txfree(ndev); | |
1484 | ||
1485 | /* SH7712 BUG */ | |
c5ed5368 | 1486 | if (edtrr ^ sh_eth_get_edtrr_trns(mdp)) { |
86a74ff2 | 1487 | /* tx dma start */ |
c5ed5368 | 1488 | sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR); |
86a74ff2 NI |
1489 | } |
1490 | /* wakeup */ | |
1491 | netif_wake_queue(ndev); | |
1492 | } | |
1493 | } | |
1494 | ||
1495 | static irqreturn_t sh_eth_interrupt(int irq, void *netdev) | |
1496 | { | |
1497 | struct net_device *ndev = netdev; | |
1498 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
380af9e3 | 1499 | struct sh_eth_cpu_data *cd = mdp->cd; |
0e0fde3c | 1500 | irqreturn_t ret = IRQ_NONE; |
3893b273 | 1501 | unsigned long intr_status; |
86a74ff2 | 1502 | |
86a74ff2 NI |
1503 | spin_lock(&mdp->lock); |
1504 | ||
3893b273 | 1505 | /* Get interrupt status */ |
4a55530f | 1506 | intr_status = sh_eth_read(ndev, EESR); |
3893b273 SS |
1507 | /* Mask it with the interrupt mask, forcing ECI interrupt to be always |
1508 | * enabled since it's the one that comes thru regardless of the mask, | |
1509 | * and we need to fully handle it in sh_eth_error() in order to quench | |
1510 | * it as it doesn't get cleared by just writing 1 to the ECI bit... | |
1511 | */ | |
1512 | intr_status &= sh_eth_read(ndev, EESIPR) | DMAC_M_ECI; | |
86a74ff2 | 1513 | /* Clear interrupt */ |
0e0fde3c NI |
1514 | if (intr_status & (EESR_FRC | EESR_RMAF | EESR_RRF | |
1515 | EESR_RTLF | EESR_RTSF | EESR_PRE | EESR_CERF | | |
380af9e3 | 1516 | cd->tx_check | cd->eesr_err_check)) { |
4a55530f | 1517 | sh_eth_write(ndev, intr_status, EESR); |
0e0fde3c NI |
1518 | ret = IRQ_HANDLED; |
1519 | } else | |
1520 | goto other_irq; | |
86a74ff2 | 1521 | |
b0ca2a21 NI |
1522 | if (intr_status & (EESR_FRC | /* Frame recv*/ |
1523 | EESR_RMAF | /* Multi cast address recv*/ | |
1524 | EESR_RRF | /* Bit frame recv */ | |
1525 | EESR_RTLF | /* Long frame recv*/ | |
1526 | EESR_RTSF | /* short frame recv */ | |
1527 | EESR_PRE | /* PHY-LSI recv error */ | |
1528 | EESR_CERF)){ /* recv frame CRC error */ | |
a18e08bd | 1529 | sh_eth_rx(ndev, intr_status); |
b0ca2a21 | 1530 | } |
86a74ff2 | 1531 | |
b0ca2a21 | 1532 | /* Tx Check */ |
380af9e3 | 1533 | if (intr_status & cd->tx_check) { |
86a74ff2 NI |
1534 | sh_eth_txfree(ndev); |
1535 | netif_wake_queue(ndev); | |
1536 | } | |
1537 | ||
380af9e3 | 1538 | if (intr_status & cd->eesr_err_check) |
86a74ff2 NI |
1539 | sh_eth_error(ndev, intr_status); |
1540 | ||
0e0fde3c | 1541 | other_irq: |
86a74ff2 NI |
1542 | spin_unlock(&mdp->lock); |
1543 | ||
0e0fde3c | 1544 | return ret; |
86a74ff2 NI |
1545 | } |
1546 | ||
86a74ff2 NI |
1547 | /* PHY state control function */ |
1548 | static void sh_eth_adjust_link(struct net_device *ndev) | |
1549 | { | |
1550 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1551 | struct phy_device *phydev = mdp->phydev; | |
86a74ff2 NI |
1552 | int new_state = 0; |
1553 | ||
3340d2aa | 1554 | if (phydev->link) { |
86a74ff2 NI |
1555 | if (phydev->duplex != mdp->duplex) { |
1556 | new_state = 1; | |
1557 | mdp->duplex = phydev->duplex; | |
380af9e3 YS |
1558 | if (mdp->cd->set_duplex) |
1559 | mdp->cd->set_duplex(ndev); | |
86a74ff2 NI |
1560 | } |
1561 | ||
1562 | if (phydev->speed != mdp->speed) { | |
1563 | new_state = 1; | |
1564 | mdp->speed = phydev->speed; | |
380af9e3 YS |
1565 | if (mdp->cd->set_rate) |
1566 | mdp->cd->set_rate(ndev); | |
86a74ff2 | 1567 | } |
3340d2aa | 1568 | if (!mdp->link) { |
91a56152 YS |
1569 | sh_eth_write(ndev, |
1570 | (sh_eth_read(ndev, ECMR) & ~ECMR_TXF), ECMR); | |
86a74ff2 NI |
1571 | new_state = 1; |
1572 | mdp->link = phydev->link; | |
1e1b812b SS |
1573 | if (mdp->cd->no_psr || mdp->no_ether_link) |
1574 | sh_eth_rcv_snd_enable(ndev); | |
86a74ff2 NI |
1575 | } |
1576 | } else if (mdp->link) { | |
1577 | new_state = 1; | |
3340d2aa | 1578 | mdp->link = 0; |
86a74ff2 NI |
1579 | mdp->speed = 0; |
1580 | mdp->duplex = -1; | |
1e1b812b SS |
1581 | if (mdp->cd->no_psr || mdp->no_ether_link) |
1582 | sh_eth_rcv_snd_disable(ndev); | |
86a74ff2 NI |
1583 | } |
1584 | ||
dc19e4e5 | 1585 | if (new_state && netif_msg_link(mdp)) |
86a74ff2 NI |
1586 | phy_print_status(phydev); |
1587 | } | |
1588 | ||
1589 | /* PHY init function */ | |
1590 | static int sh_eth_phy_init(struct net_device *ndev) | |
1591 | { | |
1592 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
0a372eb9 | 1593 | char phy_id[MII_BUS_ID_SIZE + 3]; |
86a74ff2 NI |
1594 | struct phy_device *phydev = NULL; |
1595 | ||
fb28ad35 | 1596 | snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, |
86a74ff2 NI |
1597 | mdp->mii_bus->id , mdp->phy_id); |
1598 | ||
3340d2aa | 1599 | mdp->link = 0; |
86a74ff2 NI |
1600 | mdp->speed = 0; |
1601 | mdp->duplex = -1; | |
1602 | ||
1603 | /* Try connect to PHY */ | |
c061b18d | 1604 | phydev = phy_connect(ndev, phy_id, sh_eth_adjust_link, |
f9a8f83b | 1605 | mdp->phy_interface); |
86a74ff2 NI |
1606 | if (IS_ERR(phydev)) { |
1607 | dev_err(&ndev->dev, "phy_connect failed\n"); | |
1608 | return PTR_ERR(phydev); | |
1609 | } | |
380af9e3 | 1610 | |
86a74ff2 | 1611 | dev_info(&ndev->dev, "attached phy %i to driver %s\n", |
380af9e3 | 1612 | phydev->addr, phydev->drv->name); |
86a74ff2 NI |
1613 | |
1614 | mdp->phydev = phydev; | |
1615 | ||
1616 | return 0; | |
1617 | } | |
1618 | ||
1619 | /* PHY control start function */ | |
1620 | static int sh_eth_phy_start(struct net_device *ndev) | |
1621 | { | |
1622 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1623 | int ret; | |
1624 | ||
1625 | ret = sh_eth_phy_init(ndev); | |
1626 | if (ret) | |
1627 | return ret; | |
1628 | ||
1629 | /* reset phy - this also wakes it from PDOWN */ | |
1630 | phy_write(mdp->phydev, MII_BMCR, BMCR_RESET); | |
1631 | phy_start(mdp->phydev); | |
1632 | ||
1633 | return 0; | |
1634 | } | |
1635 | ||
dc19e4e5 NI |
1636 | static int sh_eth_get_settings(struct net_device *ndev, |
1637 | struct ethtool_cmd *ecmd) | |
1638 | { | |
1639 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1640 | unsigned long flags; | |
1641 | int ret; | |
1642 | ||
1643 | spin_lock_irqsave(&mdp->lock, flags); | |
1644 | ret = phy_ethtool_gset(mdp->phydev, ecmd); | |
1645 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1646 | ||
1647 | return ret; | |
1648 | } | |
1649 | ||
1650 | static int sh_eth_set_settings(struct net_device *ndev, | |
1651 | struct ethtool_cmd *ecmd) | |
1652 | { | |
1653 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1654 | unsigned long flags; | |
1655 | int ret; | |
dc19e4e5 NI |
1656 | |
1657 | spin_lock_irqsave(&mdp->lock, flags); | |
1658 | ||
1659 | /* disable tx and rx */ | |
4a55530f | 1660 | sh_eth_rcv_snd_disable(ndev); |
dc19e4e5 NI |
1661 | |
1662 | ret = phy_ethtool_sset(mdp->phydev, ecmd); | |
1663 | if (ret) | |
1664 | goto error_exit; | |
1665 | ||
1666 | if (ecmd->duplex == DUPLEX_FULL) | |
1667 | mdp->duplex = 1; | |
1668 | else | |
1669 | mdp->duplex = 0; | |
1670 | ||
1671 | if (mdp->cd->set_duplex) | |
1672 | mdp->cd->set_duplex(ndev); | |
1673 | ||
1674 | error_exit: | |
1675 | mdelay(1); | |
1676 | ||
1677 | /* enable tx and rx */ | |
4a55530f | 1678 | sh_eth_rcv_snd_enable(ndev); |
dc19e4e5 NI |
1679 | |
1680 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1681 | ||
1682 | return ret; | |
1683 | } | |
1684 | ||
1685 | static int sh_eth_nway_reset(struct net_device *ndev) | |
1686 | { | |
1687 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1688 | unsigned long flags; | |
1689 | int ret; | |
1690 | ||
1691 | spin_lock_irqsave(&mdp->lock, flags); | |
1692 | ret = phy_start_aneg(mdp->phydev); | |
1693 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1694 | ||
1695 | return ret; | |
1696 | } | |
1697 | ||
1698 | static u32 sh_eth_get_msglevel(struct net_device *ndev) | |
1699 | { | |
1700 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1701 | return mdp->msg_enable; | |
1702 | } | |
1703 | ||
1704 | static void sh_eth_set_msglevel(struct net_device *ndev, u32 value) | |
1705 | { | |
1706 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1707 | mdp->msg_enable = value; | |
1708 | } | |
1709 | ||
1710 | static const char sh_eth_gstrings_stats[][ETH_GSTRING_LEN] = { | |
1711 | "rx_current", "tx_current", | |
1712 | "rx_dirty", "tx_dirty", | |
1713 | }; | |
1714 | #define SH_ETH_STATS_LEN ARRAY_SIZE(sh_eth_gstrings_stats) | |
1715 | ||
1716 | static int sh_eth_get_sset_count(struct net_device *netdev, int sset) | |
1717 | { | |
1718 | switch (sset) { | |
1719 | case ETH_SS_STATS: | |
1720 | return SH_ETH_STATS_LEN; | |
1721 | default: | |
1722 | return -EOPNOTSUPP; | |
1723 | } | |
1724 | } | |
1725 | ||
1726 | static void sh_eth_get_ethtool_stats(struct net_device *ndev, | |
1727 | struct ethtool_stats *stats, u64 *data) | |
1728 | { | |
1729 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1730 | int i = 0; | |
1731 | ||
1732 | /* device-specific stats */ | |
1733 | data[i++] = mdp->cur_rx; | |
1734 | data[i++] = mdp->cur_tx; | |
1735 | data[i++] = mdp->dirty_rx; | |
1736 | data[i++] = mdp->dirty_tx; | |
1737 | } | |
1738 | ||
1739 | static void sh_eth_get_strings(struct net_device *ndev, u32 stringset, u8 *data) | |
1740 | { | |
1741 | switch (stringset) { | |
1742 | case ETH_SS_STATS: | |
1743 | memcpy(data, *sh_eth_gstrings_stats, | |
1744 | sizeof(sh_eth_gstrings_stats)); | |
1745 | break; | |
1746 | } | |
1747 | } | |
1748 | ||
525b8075 YS |
1749 | static void sh_eth_get_ringparam(struct net_device *ndev, |
1750 | struct ethtool_ringparam *ring) | |
1751 | { | |
1752 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1753 | ||
1754 | ring->rx_max_pending = RX_RING_MAX; | |
1755 | ring->tx_max_pending = TX_RING_MAX; | |
1756 | ring->rx_pending = mdp->num_rx_ring; | |
1757 | ring->tx_pending = mdp->num_tx_ring; | |
1758 | } | |
1759 | ||
1760 | static int sh_eth_set_ringparam(struct net_device *ndev, | |
1761 | struct ethtool_ringparam *ring) | |
1762 | { | |
1763 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1764 | int ret; | |
1765 | ||
1766 | if (ring->tx_pending > TX_RING_MAX || | |
1767 | ring->rx_pending > RX_RING_MAX || | |
1768 | ring->tx_pending < TX_RING_MIN || | |
1769 | ring->rx_pending < RX_RING_MIN) | |
1770 | return -EINVAL; | |
1771 | if (ring->rx_mini_pending || ring->rx_jumbo_pending) | |
1772 | return -EINVAL; | |
1773 | ||
1774 | if (netif_running(ndev)) { | |
1775 | netif_tx_disable(ndev); | |
1776 | /* Disable interrupts by clearing the interrupt mask. */ | |
1777 | sh_eth_write(ndev, 0x0000, EESIPR); | |
1778 | /* Stop the chip's Tx and Rx processes. */ | |
1779 | sh_eth_write(ndev, 0, EDTRR); | |
1780 | sh_eth_write(ndev, 0, EDRRR); | |
1781 | synchronize_irq(ndev->irq); | |
1782 | } | |
1783 | ||
1784 | /* Free all the skbuffs in the Rx queue. */ | |
1785 | sh_eth_ring_free(ndev); | |
1786 | /* Free DMA buffer */ | |
1787 | sh_eth_free_dma_buffer(mdp); | |
1788 | ||
1789 | /* Set new parameters */ | |
1790 | mdp->num_rx_ring = ring->rx_pending; | |
1791 | mdp->num_tx_ring = ring->tx_pending; | |
1792 | ||
1793 | ret = sh_eth_ring_init(ndev); | |
1794 | if (ret < 0) { | |
1795 | dev_err(&ndev->dev, "%s: sh_eth_ring_init failed.\n", __func__); | |
1796 | return ret; | |
1797 | } | |
1798 | ret = sh_eth_dev_init(ndev, false); | |
1799 | if (ret < 0) { | |
1800 | dev_err(&ndev->dev, "%s: sh_eth_dev_init failed.\n", __func__); | |
1801 | return ret; | |
1802 | } | |
1803 | ||
1804 | if (netif_running(ndev)) { | |
1805 | sh_eth_write(ndev, mdp->cd->eesipr_value, EESIPR); | |
1806 | /* Setting the Rx mode will start the Rx process. */ | |
1807 | sh_eth_write(ndev, EDRRR_R, EDRRR); | |
1808 | netif_wake_queue(ndev); | |
1809 | } | |
1810 | ||
1811 | return 0; | |
1812 | } | |
1813 | ||
9b07be4b | 1814 | static const struct ethtool_ops sh_eth_ethtool_ops = { |
dc19e4e5 NI |
1815 | .get_settings = sh_eth_get_settings, |
1816 | .set_settings = sh_eth_set_settings, | |
9b07be4b | 1817 | .nway_reset = sh_eth_nway_reset, |
dc19e4e5 NI |
1818 | .get_msglevel = sh_eth_get_msglevel, |
1819 | .set_msglevel = sh_eth_set_msglevel, | |
9b07be4b | 1820 | .get_link = ethtool_op_get_link, |
dc19e4e5 NI |
1821 | .get_strings = sh_eth_get_strings, |
1822 | .get_ethtool_stats = sh_eth_get_ethtool_stats, | |
1823 | .get_sset_count = sh_eth_get_sset_count, | |
525b8075 YS |
1824 | .get_ringparam = sh_eth_get_ringparam, |
1825 | .set_ringparam = sh_eth_set_ringparam, | |
dc19e4e5 NI |
1826 | }; |
1827 | ||
86a74ff2 NI |
1828 | /* network device open function */ |
1829 | static int sh_eth_open(struct net_device *ndev) | |
1830 | { | |
1831 | int ret = 0; | |
1832 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1833 | ||
bcd5149d MD |
1834 | pm_runtime_get_sync(&mdp->pdev->dev); |
1835 | ||
a0607fd3 | 1836 | ret = request_irq(ndev->irq, sh_eth_interrupt, |
5b3dfd13 | 1837 | mdp->cd->irq_flags, ndev->name, ndev); |
86a74ff2 | 1838 | if (ret) { |
380af9e3 | 1839 | dev_err(&ndev->dev, "Can not assign IRQ number\n"); |
86a74ff2 NI |
1840 | return ret; |
1841 | } | |
1842 | ||
1843 | /* Descriptor set */ | |
1844 | ret = sh_eth_ring_init(ndev); | |
1845 | if (ret) | |
1846 | goto out_free_irq; | |
1847 | ||
1848 | /* device init */ | |
525b8075 | 1849 | ret = sh_eth_dev_init(ndev, true); |
86a74ff2 NI |
1850 | if (ret) |
1851 | goto out_free_irq; | |
1852 | ||
1853 | /* PHY control start*/ | |
1854 | ret = sh_eth_phy_start(ndev); | |
1855 | if (ret) | |
1856 | goto out_free_irq; | |
1857 | ||
86a74ff2 NI |
1858 | return ret; |
1859 | ||
1860 | out_free_irq: | |
1861 | free_irq(ndev->irq, ndev); | |
bcd5149d | 1862 | pm_runtime_put_sync(&mdp->pdev->dev); |
86a74ff2 NI |
1863 | return ret; |
1864 | } | |
1865 | ||
1866 | /* Timeout function */ | |
1867 | static void sh_eth_tx_timeout(struct net_device *ndev) | |
1868 | { | |
1869 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
1870 | struct sh_eth_rxdesc *rxdesc; |
1871 | int i; | |
1872 | ||
1873 | netif_stop_queue(ndev); | |
1874 | ||
dc19e4e5 NI |
1875 | if (netif_msg_timer(mdp)) |
1876 | dev_err(&ndev->dev, "%s: transmit timed out, status %8.8x," | |
4a55530f | 1877 | " resetting...\n", ndev->name, (int)sh_eth_read(ndev, EESR)); |
86a74ff2 NI |
1878 | |
1879 | /* tx_errors count up */ | |
bb7d92e3 | 1880 | ndev->stats.tx_errors++; |
86a74ff2 | 1881 | |
86a74ff2 | 1882 | /* Free all the skbuffs in the Rx queue. */ |
525b8075 | 1883 | for (i = 0; i < mdp->num_rx_ring; i++) { |
86a74ff2 NI |
1884 | rxdesc = &mdp->rx_ring[i]; |
1885 | rxdesc->status = 0; | |
1886 | rxdesc->addr = 0xBADF00D0; | |
1887 | if (mdp->rx_skbuff[i]) | |
1888 | dev_kfree_skb(mdp->rx_skbuff[i]); | |
1889 | mdp->rx_skbuff[i] = NULL; | |
1890 | } | |
525b8075 | 1891 | for (i = 0; i < mdp->num_tx_ring; i++) { |
86a74ff2 NI |
1892 | if (mdp->tx_skbuff[i]) |
1893 | dev_kfree_skb(mdp->tx_skbuff[i]); | |
1894 | mdp->tx_skbuff[i] = NULL; | |
1895 | } | |
1896 | ||
1897 | /* device init */ | |
525b8075 | 1898 | sh_eth_dev_init(ndev, true); |
86a74ff2 NI |
1899 | } |
1900 | ||
1901 | /* Packet transmit function */ | |
1902 | static int sh_eth_start_xmit(struct sk_buff *skb, struct net_device *ndev) | |
1903 | { | |
1904 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
1905 | struct sh_eth_txdesc *txdesc; | |
1906 | u32 entry; | |
fb5e2f9b | 1907 | unsigned long flags; |
86a74ff2 NI |
1908 | |
1909 | spin_lock_irqsave(&mdp->lock, flags); | |
525b8075 | 1910 | if ((mdp->cur_tx - mdp->dirty_tx) >= (mdp->num_tx_ring - 4)) { |
86a74ff2 | 1911 | if (!sh_eth_txfree(ndev)) { |
dc19e4e5 NI |
1912 | if (netif_msg_tx_queued(mdp)) |
1913 | dev_warn(&ndev->dev, "TxFD exhausted.\n"); | |
86a74ff2 NI |
1914 | netif_stop_queue(ndev); |
1915 | spin_unlock_irqrestore(&mdp->lock, flags); | |
5b548140 | 1916 | return NETDEV_TX_BUSY; |
86a74ff2 NI |
1917 | } |
1918 | } | |
1919 | spin_unlock_irqrestore(&mdp->lock, flags); | |
1920 | ||
525b8075 | 1921 | entry = mdp->cur_tx % mdp->num_tx_ring; |
86a74ff2 NI |
1922 | mdp->tx_skbuff[entry] = skb; |
1923 | txdesc = &mdp->tx_ring[entry]; | |
86a74ff2 | 1924 | /* soft swap. */ |
380af9e3 YS |
1925 | if (!mdp->cd->hw_swap) |
1926 | sh_eth_soft_swap(phys_to_virt(ALIGN(txdesc->addr, 4)), | |
1927 | skb->len + 2); | |
31fcb99d YS |
1928 | txdesc->addr = dma_map_single(&ndev->dev, skb->data, skb->len, |
1929 | DMA_TO_DEVICE); | |
86a74ff2 NI |
1930 | if (skb->len < ETHERSMALL) |
1931 | txdesc->buffer_length = ETHERSMALL; | |
1932 | else | |
1933 | txdesc->buffer_length = skb->len; | |
1934 | ||
525b8075 | 1935 | if (entry >= mdp->num_tx_ring - 1) |
71557a37 | 1936 | txdesc->status |= cpu_to_edmac(mdp, TD_TACT | TD_TDLE); |
86a74ff2 | 1937 | else |
71557a37 | 1938 | txdesc->status |= cpu_to_edmac(mdp, TD_TACT); |
86a74ff2 NI |
1939 | |
1940 | mdp->cur_tx++; | |
1941 | ||
c5ed5368 YS |
1942 | if (!(sh_eth_read(ndev, EDTRR) & sh_eth_get_edtrr_trns(mdp))) |
1943 | sh_eth_write(ndev, sh_eth_get_edtrr_trns(mdp), EDTRR); | |
b0ca2a21 | 1944 | |
6ed10654 | 1945 | return NETDEV_TX_OK; |
86a74ff2 NI |
1946 | } |
1947 | ||
1948 | /* device close function */ | |
1949 | static int sh_eth_close(struct net_device *ndev) | |
1950 | { | |
1951 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 NI |
1952 | |
1953 | netif_stop_queue(ndev); | |
1954 | ||
1955 | /* Disable interrupts by clearing the interrupt mask. */ | |
4a55530f | 1956 | sh_eth_write(ndev, 0x0000, EESIPR); |
86a74ff2 NI |
1957 | |
1958 | /* Stop the chip's Tx and Rx processes. */ | |
4a55530f YS |
1959 | sh_eth_write(ndev, 0, EDTRR); |
1960 | sh_eth_write(ndev, 0, EDRRR); | |
86a74ff2 NI |
1961 | |
1962 | /* PHY Disconnect */ | |
1963 | if (mdp->phydev) { | |
1964 | phy_stop(mdp->phydev); | |
1965 | phy_disconnect(mdp->phydev); | |
1966 | } | |
1967 | ||
1968 | free_irq(ndev->irq, ndev); | |
1969 | ||
86a74ff2 NI |
1970 | /* Free all the skbuffs in the Rx queue. */ |
1971 | sh_eth_ring_free(ndev); | |
1972 | ||
1973 | /* free DMA buffer */ | |
91c77550 | 1974 | sh_eth_free_dma_buffer(mdp); |
86a74ff2 | 1975 | |
bcd5149d MD |
1976 | pm_runtime_put_sync(&mdp->pdev->dev); |
1977 | ||
86a74ff2 NI |
1978 | return 0; |
1979 | } | |
1980 | ||
1981 | static struct net_device_stats *sh_eth_get_stats(struct net_device *ndev) | |
1982 | { | |
1983 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
86a74ff2 | 1984 | |
bcd5149d MD |
1985 | pm_runtime_get_sync(&mdp->pdev->dev); |
1986 | ||
bb7d92e3 | 1987 | ndev->stats.tx_dropped += sh_eth_read(ndev, TROCR); |
4a55530f | 1988 | sh_eth_write(ndev, 0, TROCR); /* (write clear) */ |
bb7d92e3 | 1989 | ndev->stats.collisions += sh_eth_read(ndev, CDCR); |
4a55530f | 1990 | sh_eth_write(ndev, 0, CDCR); /* (write clear) */ |
bb7d92e3 | 1991 | ndev->stats.tx_carrier_errors += sh_eth_read(ndev, LCCR); |
4a55530f | 1992 | sh_eth_write(ndev, 0, LCCR); /* (write clear) */ |
c5ed5368 | 1993 | if (sh_eth_is_gether(mdp)) { |
bb7d92e3 | 1994 | ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CERCR); |
c5ed5368 | 1995 | sh_eth_write(ndev, 0, CERCR); /* (write clear) */ |
bb7d92e3 | 1996 | ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CEECR); |
c5ed5368 YS |
1997 | sh_eth_write(ndev, 0, CEECR); /* (write clear) */ |
1998 | } else { | |
bb7d92e3 | 1999 | ndev->stats.tx_carrier_errors += sh_eth_read(ndev, CNDCR); |
c5ed5368 YS |
2000 | sh_eth_write(ndev, 0, CNDCR); /* (write clear) */ |
2001 | } | |
bcd5149d MD |
2002 | pm_runtime_put_sync(&mdp->pdev->dev); |
2003 | ||
bb7d92e3 | 2004 | return &ndev->stats; |
86a74ff2 NI |
2005 | } |
2006 | ||
bb7d92e3 | 2007 | /* ioctl to device function */ |
86a74ff2 NI |
2008 | static int sh_eth_do_ioctl(struct net_device *ndev, struct ifreq *rq, |
2009 | int cmd) | |
2010 | { | |
2011 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2012 | struct phy_device *phydev = mdp->phydev; | |
2013 | ||
2014 | if (!netif_running(ndev)) | |
2015 | return -EINVAL; | |
2016 | ||
2017 | if (!phydev) | |
2018 | return -ENODEV; | |
2019 | ||
28b04113 | 2020 | return phy_mii_ioctl(phydev, rq, cmd); |
86a74ff2 NI |
2021 | } |
2022 | ||
6743fe6d YS |
2023 | /* For TSU_POSTn. Please refer to the manual about this (strange) bitfields */ |
2024 | static void *sh_eth_tsu_get_post_reg_offset(struct sh_eth_private *mdp, | |
2025 | int entry) | |
2026 | { | |
2027 | return sh_eth_tsu_get_offset(mdp, TSU_POST1) + (entry / 8 * 4); | |
2028 | } | |
2029 | ||
2030 | static u32 sh_eth_tsu_get_post_mask(int entry) | |
2031 | { | |
2032 | return 0x0f << (28 - ((entry % 8) * 4)); | |
2033 | } | |
2034 | ||
2035 | static u32 sh_eth_tsu_get_post_bit(struct sh_eth_private *mdp, int entry) | |
2036 | { | |
2037 | return (0x08 >> (mdp->port << 1)) << (28 - ((entry % 8) * 4)); | |
2038 | } | |
2039 | ||
2040 | static void sh_eth_tsu_enable_cam_entry_post(struct net_device *ndev, | |
2041 | int entry) | |
2042 | { | |
2043 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2044 | u32 tmp; | |
2045 | void *reg_offset; | |
2046 | ||
2047 | reg_offset = sh_eth_tsu_get_post_reg_offset(mdp, entry); | |
2048 | tmp = ioread32(reg_offset); | |
2049 | iowrite32(tmp | sh_eth_tsu_get_post_bit(mdp, entry), reg_offset); | |
2050 | } | |
2051 | ||
2052 | static bool sh_eth_tsu_disable_cam_entry_post(struct net_device *ndev, | |
2053 | int entry) | |
2054 | { | |
2055 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2056 | u32 post_mask, ref_mask, tmp; | |
2057 | void *reg_offset; | |
2058 | ||
2059 | reg_offset = sh_eth_tsu_get_post_reg_offset(mdp, entry); | |
2060 | post_mask = sh_eth_tsu_get_post_mask(entry); | |
2061 | ref_mask = sh_eth_tsu_get_post_bit(mdp, entry) & ~post_mask; | |
2062 | ||
2063 | tmp = ioread32(reg_offset); | |
2064 | iowrite32(tmp & ~post_mask, reg_offset); | |
2065 | ||
2066 | /* If other port enables, the function returns "true" */ | |
2067 | return tmp & ref_mask; | |
2068 | } | |
2069 | ||
2070 | static int sh_eth_tsu_busy(struct net_device *ndev) | |
2071 | { | |
2072 | int timeout = SH_ETH_TSU_TIMEOUT_MS * 100; | |
2073 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2074 | ||
2075 | while ((sh_eth_tsu_read(mdp, TSU_ADSBSY) & TSU_ADSBSY_0)) { | |
2076 | udelay(10); | |
2077 | timeout--; | |
2078 | if (timeout <= 0) { | |
2079 | dev_err(&ndev->dev, "%s: timeout\n", __func__); | |
2080 | return -ETIMEDOUT; | |
2081 | } | |
2082 | } | |
2083 | ||
2084 | return 0; | |
2085 | } | |
2086 | ||
2087 | static int sh_eth_tsu_write_entry(struct net_device *ndev, void *reg, | |
2088 | const u8 *addr) | |
2089 | { | |
2090 | u32 val; | |
2091 | ||
2092 | val = addr[0] << 24 | addr[1] << 16 | addr[2] << 8 | addr[3]; | |
2093 | iowrite32(val, reg); | |
2094 | if (sh_eth_tsu_busy(ndev) < 0) | |
2095 | return -EBUSY; | |
2096 | ||
2097 | val = addr[4] << 8 | addr[5]; | |
2098 | iowrite32(val, reg + 4); | |
2099 | if (sh_eth_tsu_busy(ndev) < 0) | |
2100 | return -EBUSY; | |
2101 | ||
2102 | return 0; | |
2103 | } | |
2104 | ||
2105 | static void sh_eth_tsu_read_entry(void *reg, u8 *addr) | |
2106 | { | |
2107 | u32 val; | |
2108 | ||
2109 | val = ioread32(reg); | |
2110 | addr[0] = (val >> 24) & 0xff; | |
2111 | addr[1] = (val >> 16) & 0xff; | |
2112 | addr[2] = (val >> 8) & 0xff; | |
2113 | addr[3] = val & 0xff; | |
2114 | val = ioread32(reg + 4); | |
2115 | addr[4] = (val >> 8) & 0xff; | |
2116 | addr[5] = val & 0xff; | |
2117 | } | |
2118 | ||
2119 | ||
2120 | static int sh_eth_tsu_find_entry(struct net_device *ndev, const u8 *addr) | |
2121 | { | |
2122 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2123 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2124 | int i; | |
2125 | u8 c_addr[ETH_ALEN]; | |
2126 | ||
2127 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++, reg_offset += 8) { | |
2128 | sh_eth_tsu_read_entry(reg_offset, c_addr); | |
2129 | if (memcmp(addr, c_addr, ETH_ALEN) == 0) | |
2130 | return i; | |
2131 | } | |
2132 | ||
2133 | return -ENOENT; | |
2134 | } | |
2135 | ||
2136 | static int sh_eth_tsu_find_empty(struct net_device *ndev) | |
2137 | { | |
2138 | u8 blank[ETH_ALEN]; | |
2139 | int entry; | |
2140 | ||
2141 | memset(blank, 0, sizeof(blank)); | |
2142 | entry = sh_eth_tsu_find_entry(ndev, blank); | |
2143 | return (entry < 0) ? -ENOMEM : entry; | |
2144 | } | |
2145 | ||
2146 | static int sh_eth_tsu_disable_cam_entry_table(struct net_device *ndev, | |
2147 | int entry) | |
2148 | { | |
2149 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2150 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2151 | int ret; | |
2152 | u8 blank[ETH_ALEN]; | |
2153 | ||
2154 | sh_eth_tsu_write(mdp, sh_eth_tsu_read(mdp, TSU_TEN) & | |
2155 | ~(1 << (31 - entry)), TSU_TEN); | |
2156 | ||
2157 | memset(blank, 0, sizeof(blank)); | |
2158 | ret = sh_eth_tsu_write_entry(ndev, reg_offset + entry * 8, blank); | |
2159 | if (ret < 0) | |
2160 | return ret; | |
2161 | return 0; | |
2162 | } | |
2163 | ||
2164 | static int sh_eth_tsu_add_entry(struct net_device *ndev, const u8 *addr) | |
2165 | { | |
2166 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2167 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2168 | int i, ret; | |
2169 | ||
2170 | if (!mdp->cd->tsu) | |
2171 | return 0; | |
2172 | ||
2173 | i = sh_eth_tsu_find_entry(ndev, addr); | |
2174 | if (i < 0) { | |
2175 | /* No entry found, create one */ | |
2176 | i = sh_eth_tsu_find_empty(ndev); | |
2177 | if (i < 0) | |
2178 | return -ENOMEM; | |
2179 | ret = sh_eth_tsu_write_entry(ndev, reg_offset + i * 8, addr); | |
2180 | if (ret < 0) | |
2181 | return ret; | |
2182 | ||
2183 | /* Enable the entry */ | |
2184 | sh_eth_tsu_write(mdp, sh_eth_tsu_read(mdp, TSU_TEN) | | |
2185 | (1 << (31 - i)), TSU_TEN); | |
2186 | } | |
2187 | ||
2188 | /* Entry found or created, enable POST */ | |
2189 | sh_eth_tsu_enable_cam_entry_post(ndev, i); | |
2190 | ||
2191 | return 0; | |
2192 | } | |
2193 | ||
2194 | static int sh_eth_tsu_del_entry(struct net_device *ndev, const u8 *addr) | |
2195 | { | |
2196 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2197 | int i, ret; | |
2198 | ||
2199 | if (!mdp->cd->tsu) | |
2200 | return 0; | |
2201 | ||
2202 | i = sh_eth_tsu_find_entry(ndev, addr); | |
2203 | if (i) { | |
2204 | /* Entry found */ | |
2205 | if (sh_eth_tsu_disable_cam_entry_post(ndev, i)) | |
2206 | goto done; | |
2207 | ||
2208 | /* Disable the entry if both ports was disabled */ | |
2209 | ret = sh_eth_tsu_disable_cam_entry_table(ndev, i); | |
2210 | if (ret < 0) | |
2211 | return ret; | |
2212 | } | |
2213 | done: | |
2214 | return 0; | |
2215 | } | |
2216 | ||
2217 | static int sh_eth_tsu_purge_all(struct net_device *ndev) | |
2218 | { | |
2219 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2220 | int i, ret; | |
2221 | ||
2222 | if (unlikely(!mdp->cd->tsu)) | |
2223 | return 0; | |
2224 | ||
2225 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++) { | |
2226 | if (sh_eth_tsu_disable_cam_entry_post(ndev, i)) | |
2227 | continue; | |
2228 | ||
2229 | /* Disable the entry if both ports was disabled */ | |
2230 | ret = sh_eth_tsu_disable_cam_entry_table(ndev, i); | |
2231 | if (ret < 0) | |
2232 | return ret; | |
2233 | } | |
2234 | ||
2235 | return 0; | |
2236 | } | |
2237 | ||
2238 | static void sh_eth_tsu_purge_mcast(struct net_device *ndev) | |
2239 | { | |
2240 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2241 | u8 addr[ETH_ALEN]; | |
2242 | void *reg_offset = sh_eth_tsu_get_offset(mdp, TSU_ADRH0); | |
2243 | int i; | |
2244 | ||
2245 | if (unlikely(!mdp->cd->tsu)) | |
2246 | return; | |
2247 | ||
2248 | for (i = 0; i < SH_ETH_TSU_CAM_ENTRIES; i++, reg_offset += 8) { | |
2249 | sh_eth_tsu_read_entry(reg_offset, addr); | |
2250 | if (is_multicast_ether_addr(addr)) | |
2251 | sh_eth_tsu_del_entry(ndev, addr); | |
2252 | } | |
2253 | } | |
2254 | ||
86a74ff2 NI |
2255 | /* Multicast reception directions set */ |
2256 | static void sh_eth_set_multicast_list(struct net_device *ndev) | |
2257 | { | |
6743fe6d YS |
2258 | struct sh_eth_private *mdp = netdev_priv(ndev); |
2259 | u32 ecmr_bits; | |
2260 | int mcast_all = 0; | |
2261 | unsigned long flags; | |
2262 | ||
2263 | spin_lock_irqsave(&mdp->lock, flags); | |
2264 | /* | |
2265 | * Initial condition is MCT = 1, PRM = 0. | |
2266 | * Depending on ndev->flags, set PRM or clear MCT | |
2267 | */ | |
2268 | ecmr_bits = (sh_eth_read(ndev, ECMR) & ~ECMR_PRM) | ECMR_MCT; | |
2269 | ||
2270 | if (!(ndev->flags & IFF_MULTICAST)) { | |
2271 | sh_eth_tsu_purge_mcast(ndev); | |
2272 | mcast_all = 1; | |
2273 | } | |
2274 | if (ndev->flags & IFF_ALLMULTI) { | |
2275 | sh_eth_tsu_purge_mcast(ndev); | |
2276 | ecmr_bits &= ~ECMR_MCT; | |
2277 | mcast_all = 1; | |
2278 | } | |
2279 | ||
86a74ff2 | 2280 | if (ndev->flags & IFF_PROMISC) { |
6743fe6d YS |
2281 | sh_eth_tsu_purge_all(ndev); |
2282 | ecmr_bits = (ecmr_bits & ~ECMR_MCT) | ECMR_PRM; | |
2283 | } else if (mdp->cd->tsu) { | |
2284 | struct netdev_hw_addr *ha; | |
2285 | netdev_for_each_mc_addr(ha, ndev) { | |
2286 | if (mcast_all && is_multicast_ether_addr(ha->addr)) | |
2287 | continue; | |
2288 | ||
2289 | if (sh_eth_tsu_add_entry(ndev, ha->addr) < 0) { | |
2290 | if (!mcast_all) { | |
2291 | sh_eth_tsu_purge_mcast(ndev); | |
2292 | ecmr_bits &= ~ECMR_MCT; | |
2293 | mcast_all = 1; | |
2294 | } | |
2295 | } | |
2296 | } | |
86a74ff2 NI |
2297 | } else { |
2298 | /* Normal, unicast/broadcast-only mode. */ | |
6743fe6d | 2299 | ecmr_bits = (ecmr_bits & ~ECMR_PRM) | ECMR_MCT; |
86a74ff2 | 2300 | } |
6743fe6d YS |
2301 | |
2302 | /* update the ethernet mode */ | |
2303 | sh_eth_write(ndev, ecmr_bits, ECMR); | |
2304 | ||
2305 | spin_unlock_irqrestore(&mdp->lock, flags); | |
86a74ff2 | 2306 | } |
71cc7c37 YS |
2307 | |
2308 | static int sh_eth_get_vtag_index(struct sh_eth_private *mdp) | |
2309 | { | |
2310 | if (!mdp->port) | |
2311 | return TSU_VTAG0; | |
2312 | else | |
2313 | return TSU_VTAG1; | |
2314 | } | |
2315 | ||
80d5c368 PM |
2316 | static int sh_eth_vlan_rx_add_vid(struct net_device *ndev, |
2317 | __be16 proto, u16 vid) | |
71cc7c37 YS |
2318 | { |
2319 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2320 | int vtag_reg_index = sh_eth_get_vtag_index(mdp); | |
2321 | ||
2322 | if (unlikely(!mdp->cd->tsu)) | |
2323 | return -EPERM; | |
2324 | ||
2325 | /* No filtering if vid = 0 */ | |
2326 | if (!vid) | |
2327 | return 0; | |
2328 | ||
2329 | mdp->vlan_num_ids++; | |
2330 | ||
2331 | /* | |
2332 | * The controller has one VLAN tag HW filter. So, if the filter is | |
2333 | * already enabled, the driver disables it and the filte | |
2334 | */ | |
2335 | if (mdp->vlan_num_ids > 1) { | |
2336 | /* disable VLAN filter */ | |
2337 | sh_eth_tsu_write(mdp, 0, vtag_reg_index); | |
2338 | return 0; | |
2339 | } | |
2340 | ||
2341 | sh_eth_tsu_write(mdp, TSU_VTAG_ENABLE | (vid & TSU_VTAG_VID_MASK), | |
2342 | vtag_reg_index); | |
2343 | ||
2344 | return 0; | |
2345 | } | |
2346 | ||
80d5c368 PM |
2347 | static int sh_eth_vlan_rx_kill_vid(struct net_device *ndev, |
2348 | __be16 proto, u16 vid) | |
71cc7c37 YS |
2349 | { |
2350 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2351 | int vtag_reg_index = sh_eth_get_vtag_index(mdp); | |
2352 | ||
2353 | if (unlikely(!mdp->cd->tsu)) | |
2354 | return -EPERM; | |
2355 | ||
2356 | /* No filtering if vid = 0 */ | |
2357 | if (!vid) | |
2358 | return 0; | |
2359 | ||
2360 | mdp->vlan_num_ids--; | |
2361 | sh_eth_tsu_write(mdp, 0, vtag_reg_index); | |
2362 | ||
2363 | return 0; | |
2364 | } | |
86a74ff2 NI |
2365 | |
2366 | /* SuperH's TSU register init function */ | |
4a55530f | 2367 | static void sh_eth_tsu_init(struct sh_eth_private *mdp) |
86a74ff2 | 2368 | { |
4a55530f YS |
2369 | sh_eth_tsu_write(mdp, 0, TSU_FWEN0); /* Disable forward(0->1) */ |
2370 | sh_eth_tsu_write(mdp, 0, TSU_FWEN1); /* Disable forward(1->0) */ | |
2371 | sh_eth_tsu_write(mdp, 0, TSU_FCM); /* forward fifo 3k-3k */ | |
2372 | sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL0); | |
2373 | sh_eth_tsu_write(mdp, 0xc, TSU_BSYSL1); | |
2374 | sh_eth_tsu_write(mdp, 0, TSU_PRISL0); | |
2375 | sh_eth_tsu_write(mdp, 0, TSU_PRISL1); | |
2376 | sh_eth_tsu_write(mdp, 0, TSU_FWSL0); | |
2377 | sh_eth_tsu_write(mdp, 0, TSU_FWSL1); | |
2378 | sh_eth_tsu_write(mdp, TSU_FWSLC_POSTENU | TSU_FWSLC_POSTENL, TSU_FWSLC); | |
c5ed5368 YS |
2379 | if (sh_eth_is_gether(mdp)) { |
2380 | sh_eth_tsu_write(mdp, 0, TSU_QTAG0); /* Disable QTAG(0->1) */ | |
2381 | sh_eth_tsu_write(mdp, 0, TSU_QTAG1); /* Disable QTAG(1->0) */ | |
2382 | } else { | |
2383 | sh_eth_tsu_write(mdp, 0, TSU_QTAGM0); /* Disable QTAG(0->1) */ | |
2384 | sh_eth_tsu_write(mdp, 0, TSU_QTAGM1); /* Disable QTAG(1->0) */ | |
2385 | } | |
4a55530f YS |
2386 | sh_eth_tsu_write(mdp, 0, TSU_FWSR); /* all interrupt status clear */ |
2387 | sh_eth_tsu_write(mdp, 0, TSU_FWINMK); /* Disable all interrupt */ | |
2388 | sh_eth_tsu_write(mdp, 0, TSU_TEN); /* Disable all CAM entry */ | |
2389 | sh_eth_tsu_write(mdp, 0, TSU_POST1); /* Disable CAM entry [ 0- 7] */ | |
2390 | sh_eth_tsu_write(mdp, 0, TSU_POST2); /* Disable CAM entry [ 8-15] */ | |
2391 | sh_eth_tsu_write(mdp, 0, TSU_POST3); /* Disable CAM entry [16-23] */ | |
2392 | sh_eth_tsu_write(mdp, 0, TSU_POST4); /* Disable CAM entry [24-31] */ | |
86a74ff2 NI |
2393 | } |
2394 | ||
2395 | /* MDIO bus release function */ | |
2396 | static int sh_mdio_release(struct net_device *ndev) | |
2397 | { | |
2398 | struct mii_bus *bus = dev_get_drvdata(&ndev->dev); | |
2399 | ||
2400 | /* unregister mdio bus */ | |
2401 | mdiobus_unregister(bus); | |
2402 | ||
2403 | /* remove mdio bus info from net_device */ | |
2404 | dev_set_drvdata(&ndev->dev, NULL); | |
2405 | ||
2406 | /* free bitbang info */ | |
2407 | free_mdio_bitbang(bus); | |
2408 | ||
2409 | return 0; | |
2410 | } | |
2411 | ||
2412 | /* MDIO bus init function */ | |
b3017e6a YS |
2413 | static int sh_mdio_init(struct net_device *ndev, int id, |
2414 | struct sh_eth_plat_data *pd) | |
86a74ff2 NI |
2415 | { |
2416 | int ret, i; | |
2417 | struct bb_info *bitbang; | |
2418 | struct sh_eth_private *mdp = netdev_priv(ndev); | |
2419 | ||
2420 | /* create bit control struct for PHY */ | |
d5e07e69 SS |
2421 | bitbang = devm_kzalloc(&ndev->dev, sizeof(struct bb_info), |
2422 | GFP_KERNEL); | |
86a74ff2 NI |
2423 | if (!bitbang) { |
2424 | ret = -ENOMEM; | |
2425 | goto out; | |
2426 | } | |
2427 | ||
2428 | /* bitbang init */ | |
ae70644d | 2429 | bitbang->addr = mdp->addr + mdp->reg_offset[PIR]; |
b3017e6a | 2430 | bitbang->set_gate = pd->set_mdio_gate; |
dfed5e7f SS |
2431 | bitbang->mdi_msk = PIR_MDI; |
2432 | bitbang->mdo_msk = PIR_MDO; | |
2433 | bitbang->mmd_msk = PIR_MMD; | |
2434 | bitbang->mdc_msk = PIR_MDC; | |
86a74ff2 NI |
2435 | bitbang->ctrl.ops = &bb_ops; |
2436 | ||
c2e07b3a | 2437 | /* MII controller setting */ |
86a74ff2 NI |
2438 | mdp->mii_bus = alloc_mdio_bitbang(&bitbang->ctrl); |
2439 | if (!mdp->mii_bus) { | |
2440 | ret = -ENOMEM; | |
d5e07e69 | 2441 | goto out; |
86a74ff2 NI |
2442 | } |
2443 | ||
2444 | /* Hook up MII support for ethtool */ | |
2445 | mdp->mii_bus->name = "sh_mii"; | |
18ee49dd | 2446 | mdp->mii_bus->parent = &ndev->dev; |
5278fb54 | 2447 | snprintf(mdp->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x", |
34aa6f14 | 2448 | mdp->pdev->name, id); |
86a74ff2 NI |
2449 | |
2450 | /* PHY IRQ */ | |
d5e07e69 SS |
2451 | mdp->mii_bus->irq = devm_kzalloc(&ndev->dev, |
2452 | sizeof(int) * PHY_MAX_ADDR, | |
2453 | GFP_KERNEL); | |
86a74ff2 NI |
2454 | if (!mdp->mii_bus->irq) { |
2455 | ret = -ENOMEM; | |
2456 | goto out_free_bus; | |
2457 | } | |
2458 | ||
2459 | for (i = 0; i < PHY_MAX_ADDR; i++) | |
2460 | mdp->mii_bus->irq[i] = PHY_POLL; | |
2461 | ||
8f6352f2 | 2462 | /* register mdio bus */ |
86a74ff2 NI |
2463 | ret = mdiobus_register(mdp->mii_bus); |
2464 | if (ret) | |
d5e07e69 | 2465 | goto out_free_bus; |
86a74ff2 NI |
2466 | |
2467 | dev_set_drvdata(&ndev->dev, mdp->mii_bus); | |
2468 | ||
2469 | return 0; | |
2470 | ||
86a74ff2 | 2471 | out_free_bus: |
298cf9be | 2472 | free_mdio_bitbang(mdp->mii_bus); |
86a74ff2 | 2473 | |
86a74ff2 NI |
2474 | out: |
2475 | return ret; | |
2476 | } | |
2477 | ||
4a55530f YS |
2478 | static const u16 *sh_eth_get_register_offset(int register_type) |
2479 | { | |
2480 | const u16 *reg_offset = NULL; | |
2481 | ||
2482 | switch (register_type) { | |
2483 | case SH_ETH_REG_GIGABIT: | |
2484 | reg_offset = sh_eth_offset_gigabit; | |
2485 | break; | |
a3f109bd SS |
2486 | case SH_ETH_REG_FAST_RCAR: |
2487 | reg_offset = sh_eth_offset_fast_rcar; | |
2488 | break; | |
4a55530f YS |
2489 | case SH_ETH_REG_FAST_SH4: |
2490 | reg_offset = sh_eth_offset_fast_sh4; | |
2491 | break; | |
2492 | case SH_ETH_REG_FAST_SH3_SH2: | |
2493 | reg_offset = sh_eth_offset_fast_sh3_sh2; | |
2494 | break; | |
2495 | default: | |
14c3326a | 2496 | pr_err("Unknown register type (%d)\n", register_type); |
4a55530f YS |
2497 | break; |
2498 | } | |
2499 | ||
2500 | return reg_offset; | |
2501 | } | |
2502 | ||
9f861341 | 2503 | static struct net_device_ops sh_eth_netdev_ops = { |
ebf84eaa AB |
2504 | .ndo_open = sh_eth_open, |
2505 | .ndo_stop = sh_eth_close, | |
2506 | .ndo_start_xmit = sh_eth_start_xmit, | |
2507 | .ndo_get_stats = sh_eth_get_stats, | |
ebf84eaa AB |
2508 | .ndo_tx_timeout = sh_eth_tx_timeout, |
2509 | .ndo_do_ioctl = sh_eth_do_ioctl, | |
2510 | .ndo_validate_addr = eth_validate_addr, | |
2511 | .ndo_set_mac_address = eth_mac_addr, | |
2512 | .ndo_change_mtu = eth_change_mtu, | |
2513 | }; | |
2514 | ||
86a74ff2 NI |
2515 | static int sh_eth_drv_probe(struct platform_device *pdev) |
2516 | { | |
9c38657c | 2517 | int ret, devno = 0; |
86a74ff2 NI |
2518 | struct resource *res; |
2519 | struct net_device *ndev = NULL; | |
ec0d7551 | 2520 | struct sh_eth_private *mdp = NULL; |
564044b0 | 2521 | struct sh_eth_plat_data *pd = pdev->dev.platform_data; |
afe391ad | 2522 | const struct platform_device_id *id = platform_get_device_id(pdev); |
86a74ff2 NI |
2523 | |
2524 | /* get base addr */ | |
2525 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
2526 | if (unlikely(res == NULL)) { | |
2527 | dev_err(&pdev->dev, "invalid resource\n"); | |
2528 | ret = -EINVAL; | |
2529 | goto out; | |
2530 | } | |
2531 | ||
2532 | ndev = alloc_etherdev(sizeof(struct sh_eth_private)); | |
2533 | if (!ndev) { | |
86a74ff2 NI |
2534 | ret = -ENOMEM; |
2535 | goto out; | |
2536 | } | |
2537 | ||
2538 | /* The sh Ether-specific entries in the device structure. */ | |
2539 | ndev->base_addr = res->start; | |
2540 | devno = pdev->id; | |
2541 | if (devno < 0) | |
2542 | devno = 0; | |
2543 | ||
2544 | ndev->dma = -1; | |
cc3c080d | 2545 | ret = platform_get_irq(pdev, 0); |
2546 | if (ret < 0) { | |
86a74ff2 NI |
2547 | ret = -ENODEV; |
2548 | goto out_release; | |
2549 | } | |
cc3c080d | 2550 | ndev->irq = ret; |
86a74ff2 NI |
2551 | |
2552 | SET_NETDEV_DEV(ndev, &pdev->dev); | |
2553 | ||
2554 | /* Fill in the fields of the device structure with ethernet values. */ | |
2555 | ether_setup(ndev); | |
2556 | ||
2557 | mdp = netdev_priv(ndev); | |
525b8075 YS |
2558 | mdp->num_tx_ring = TX_RING_SIZE; |
2559 | mdp->num_rx_ring = RX_RING_SIZE; | |
d5e07e69 SS |
2560 | mdp->addr = devm_ioremap_resource(&pdev->dev, res); |
2561 | if (IS_ERR(mdp->addr)) { | |
2562 | ret = PTR_ERR(mdp->addr); | |
ae70644d YS |
2563 | goto out_release; |
2564 | } | |
2565 | ||
86a74ff2 | 2566 | spin_lock_init(&mdp->lock); |
bcd5149d MD |
2567 | mdp->pdev = pdev; |
2568 | pm_runtime_enable(&pdev->dev); | |
2569 | pm_runtime_resume(&pdev->dev); | |
86a74ff2 NI |
2570 | |
2571 | /* get PHY ID */ | |
71557a37 | 2572 | mdp->phy_id = pd->phy; |
e47c9052 | 2573 | mdp->phy_interface = pd->phy_interface; |
71557a37 YS |
2574 | /* EDMAC endian */ |
2575 | mdp->edmac_endian = pd->edmac_endian; | |
4923576b YS |
2576 | mdp->no_ether_link = pd->no_ether_link; |
2577 | mdp->ether_link_active_low = pd->ether_link_active_low; | |
4a55530f | 2578 | mdp->reg_offset = sh_eth_get_register_offset(pd->register_type); |
86a74ff2 | 2579 | |
380af9e3 | 2580 | /* set cpu data */ |
8fcd4961 YS |
2581 | #if defined(SH_ETH_HAS_BOTH_MODULES) |
2582 | mdp->cd = sh_eth_get_cpu_data(mdp); | |
2583 | #else | |
380af9e3 | 2584 | mdp->cd = &sh_eth_my_cpu_data; |
8fcd4961 | 2585 | #endif |
afe391ad SS |
2586 | if (id->driver_data) |
2587 | mdp->cd = (struct sh_eth_cpu_data *)id->driver_data; | |
380af9e3 YS |
2588 | sh_eth_set_default_cpu_data(mdp->cd); |
2589 | ||
86a74ff2 | 2590 | /* set function */ |
9f861341 NI |
2591 | if (mdp->cd->tsu) { |
2592 | sh_eth_netdev_ops.ndo_set_rx_mode = sh_eth_set_multicast_list; | |
2593 | sh_eth_netdev_ops.ndo_vlan_rx_add_vid = sh_eth_vlan_rx_add_vid; | |
2594 | sh_eth_netdev_ops.ndo_vlan_rx_kill_vid = | |
2595 | sh_eth_vlan_rx_kill_vid; | |
2596 | } | |
2597 | ||
ebf84eaa | 2598 | ndev->netdev_ops = &sh_eth_netdev_ops; |
dc19e4e5 | 2599 | SET_ETHTOOL_OPS(ndev, &sh_eth_ethtool_ops); |
86a74ff2 NI |
2600 | ndev->watchdog_timeo = TX_TIMEOUT; |
2601 | ||
dc19e4e5 NI |
2602 | /* debug message level */ |
2603 | mdp->msg_enable = SH_ETH_DEF_MSG_ENABLE; | |
86a74ff2 NI |
2604 | |
2605 | /* read and set MAC address */ | |
748031f9 | 2606 | read_mac_address(ndev, pd->mac_addr); |
ff6e7228 SS |
2607 | if (!is_valid_ether_addr(ndev->dev_addr)) { |
2608 | dev_warn(&pdev->dev, | |
2609 | "no valid MAC address supplied, using a random one.\n"); | |
2610 | eth_hw_addr_random(ndev); | |
2611 | } | |
86a74ff2 | 2612 | |
6ba88021 YS |
2613 | /* ioremap the TSU registers */ |
2614 | if (mdp->cd->tsu) { | |
2615 | struct resource *rtsu; | |
2616 | rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1); | |
d5e07e69 SS |
2617 | mdp->tsu_addr = devm_ioremap_resource(&pdev->dev, rtsu); |
2618 | if (IS_ERR(mdp->tsu_addr)) { | |
2619 | ret = PTR_ERR(mdp->tsu_addr); | |
fc0c0900 SS |
2620 | goto out_release; |
2621 | } | |
6743fe6d | 2622 | mdp->port = devno % 2; |
f646968f | 2623 | ndev->features = NETIF_F_HW_VLAN_CTAG_FILTER; |
6ba88021 YS |
2624 | } |
2625 | ||
150647fb YS |
2626 | /* initialize first or needed device */ |
2627 | if (!devno || pd->needs_init) { | |
380af9e3 YS |
2628 | if (mdp->cd->chip_reset) |
2629 | mdp->cd->chip_reset(ndev); | |
86a74ff2 | 2630 | |
4986b996 YS |
2631 | if (mdp->cd->tsu) { |
2632 | /* TSU init (Init only)*/ | |
2633 | sh_eth_tsu_init(mdp); | |
2634 | } | |
86a74ff2 NI |
2635 | } |
2636 | ||
2637 | /* network device register */ | |
2638 | ret = register_netdev(ndev); | |
2639 | if (ret) | |
2640 | goto out_release; | |
2641 | ||
2642 | /* mdio bus init */ | |
b3017e6a | 2643 | ret = sh_mdio_init(ndev, pdev->id, pd); |
86a74ff2 NI |
2644 | if (ret) |
2645 | goto out_unregister; | |
2646 | ||
25985edc | 2647 | /* print device information */ |
6cd9b49d HS |
2648 | pr_info("Base address at 0x%x, %pM, IRQ %d.\n", |
2649 | (u32)ndev->base_addr, ndev->dev_addr, ndev->irq); | |
86a74ff2 NI |
2650 | |
2651 | platform_set_drvdata(pdev, ndev); | |
2652 | ||
2653 | return ret; | |
2654 | ||
2655 | out_unregister: | |
2656 | unregister_netdev(ndev); | |
2657 | ||
2658 | out_release: | |
2659 | /* net_dev free */ | |
2660 | if (ndev) | |
2661 | free_netdev(ndev); | |
2662 | ||
2663 | out: | |
2664 | return ret; | |
2665 | } | |
2666 | ||
2667 | static int sh_eth_drv_remove(struct platform_device *pdev) | |
2668 | { | |
2669 | struct net_device *ndev = platform_get_drvdata(pdev); | |
2670 | ||
2671 | sh_mdio_release(ndev); | |
2672 | unregister_netdev(ndev); | |
bcd5149d | 2673 | pm_runtime_disable(&pdev->dev); |
86a74ff2 | 2674 | free_netdev(ndev); |
86a74ff2 NI |
2675 | |
2676 | return 0; | |
2677 | } | |
2678 | ||
540ad1b8 | 2679 | #ifdef CONFIG_PM |
bcd5149d MD |
2680 | static int sh_eth_runtime_nop(struct device *dev) |
2681 | { | |
2682 | /* | |
2683 | * Runtime PM callback shared between ->runtime_suspend() | |
2684 | * and ->runtime_resume(). Simply returns success. | |
2685 | * | |
2686 | * This driver re-initializes all registers after | |
2687 | * pm_runtime_get_sync() anyway so there is no need | |
2688 | * to save and restore registers here. | |
2689 | */ | |
2690 | return 0; | |
2691 | } | |
2692 | ||
540ad1b8 | 2693 | static const struct dev_pm_ops sh_eth_dev_pm_ops = { |
bcd5149d MD |
2694 | .runtime_suspend = sh_eth_runtime_nop, |
2695 | .runtime_resume = sh_eth_runtime_nop, | |
2696 | }; | |
540ad1b8 NI |
2697 | #define SH_ETH_PM_OPS (&sh_eth_dev_pm_ops) |
2698 | #else | |
2699 | #define SH_ETH_PM_OPS NULL | |
2700 | #endif | |
bcd5149d | 2701 | |
afe391ad SS |
2702 | static struct platform_device_id sh_eth_id_table[] = { |
2703 | { CARDNAME }, | |
2704 | { } | |
2705 | }; | |
2706 | MODULE_DEVICE_TABLE(platform, sh_eth_id_table); | |
2707 | ||
86a74ff2 NI |
2708 | static struct platform_driver sh_eth_driver = { |
2709 | .probe = sh_eth_drv_probe, | |
2710 | .remove = sh_eth_drv_remove, | |
afe391ad | 2711 | .id_table = sh_eth_id_table, |
86a74ff2 NI |
2712 | .driver = { |
2713 | .name = CARDNAME, | |
540ad1b8 | 2714 | .pm = SH_ETH_PM_OPS, |
86a74ff2 NI |
2715 | }, |
2716 | }; | |
2717 | ||
db62f684 | 2718 | module_platform_driver(sh_eth_driver); |
86a74ff2 NI |
2719 | |
2720 | MODULE_AUTHOR("Nobuhiro Iwamatsu, Yoshihiro Shimoda"); | |
2721 | MODULE_DESCRIPTION("Renesas SuperH Ethernet driver"); | |
2722 | MODULE_LICENSE("GPL v2"); |