xref: /openbmc/u-boot/drivers/net/sh_eth.h (revision 2399e401)
1 /*
2  * sh_eth.h - Driver for Renesas SuperH ethernet controller.
3  *
4  * Copyright (C) 2008 - 2012 Renesas Solutions Corp.
5  * Copyright (c) 2008 - 2012 Nobuhiro Iwamatsu
6  * Copyright (c) 2007 Carlos Munoz <carlos@kenati.com>
7  *
8  * SPDX-License-Identifier:	GPL-2.0+
9  */
10 
11 #include <netdev.h>
12 #include <asm/types.h>
13 
14 #define SHETHER_NAME "sh_eth"
15 
16 #if defined(CONFIG_SH)
17 /* Malloc returns addresses in the P1 area (cacheable). However we need to
18    use area P2 (non-cacheable) */
19 #define ADDR_TO_P2(addr)	((((int)(addr) & ~0xe0000000) | 0xa0000000))
20 
21 /* The ethernet controller needs to use physical addresses */
22 #if defined(CONFIG_SH_32BIT)
23 #define ADDR_TO_PHY(addr)	((((int)(addr) & ~0xe0000000) | 0x40000000))
24 #else
25 #define ADDR_TO_PHY(addr)	((int)(addr) & ~0xe0000000)
26 #endif
27 #elif defined(CONFIG_ARM)
28 #define inl		readl
29 #define outl	writel
30 #define ADDR_TO_PHY(addr)	((int)(addr))
31 #define ADDR_TO_P2(addr)	(addr)
32 #endif /* defined(CONFIG_SH) */
33 
34 /* base padding size is 16 */
35 #ifndef CONFIG_SH_ETHER_ALIGNE_SIZE
36 #define CONFIG_SH_ETHER_ALIGNE_SIZE 16
37 #endif
38 
39 /* Number of supported ports */
40 #define MAX_PORT_NUM	2
41 
42 /* Buffers must be big enough to hold the largest ethernet frame. Also, rx
43    buffers must be a multiple of 32 bytes */
44 #define MAX_BUF_SIZE	(48 * 32)
45 
46 /* The number of tx descriptors must be large enough to point to 5 or more
47    frames. If each frame uses 2 descriptors, at least 10 descriptors are needed.
48    We use one descriptor per frame */
49 #define NUM_TX_DESC		8
50 
51 /* The size of the tx descriptor is determined by how much padding is used.
52    4, 20, or 52 bytes of padding can be used */
53 #define TX_DESC_PADDING	(CONFIG_SH_ETHER_ALIGNE_SIZE - 12)
54 
55 /* Tx descriptor. We always use 3 bytes of padding */
56 struct tx_desc_s {
57 	volatile u32 td0;
58 	u32 td1;
59 	u32 td2;		/* Buffer start */
60 	u8 padding[TX_DESC_PADDING];	/* aligned cache line size */
61 };
62 
63 /* There is no limitation in the number of rx descriptors */
64 #define NUM_RX_DESC	8
65 
66 /* The size of the rx descriptor is determined by how much padding is used.
67    4, 20, or 52 bytes of padding can be used */
68 #define RX_DESC_PADDING	(CONFIG_SH_ETHER_ALIGNE_SIZE - 12)
69 /* aligned cache line size */
70 #define RX_BUF_ALIGNE_SIZE	(CONFIG_SH_ETHER_ALIGNE_SIZE > 32 ? 64 : 32)
71 
72 /* Rx descriptor. We always use 4 bytes of padding */
73 struct rx_desc_s {
74 	volatile u32 rd0;
75 	volatile u32 rd1;
76 	u32 rd2;		/* Buffer start */
77 	u8 padding[TX_DESC_PADDING];	/* aligned cache line size */
78 };
79 
80 struct sh_eth_info {
81 	struct tx_desc_s *tx_desc_alloc;
82 	struct tx_desc_s *tx_desc_base;
83 	struct tx_desc_s *tx_desc_cur;
84 	struct rx_desc_s *rx_desc_alloc;
85 	struct rx_desc_s *rx_desc_base;
86 	struct rx_desc_s *rx_desc_cur;
87 	u8 *rx_buf_alloc;
88 	u8 *rx_buf_base;
89 	u8 mac_addr[6];
90 	u8 phy_addr;
91 	struct eth_device *dev;
92 	struct phy_device *phydev;
93 };
94 
95 struct sh_eth_dev {
96 	int port;
97 	struct sh_eth_info port_info[MAX_PORT_NUM];
98 };
99 
100 /* from linux/drivers/net/ethernet/renesas/sh_eth.h */
101 enum {
102 	/* E-DMAC registers */
103 	EDSR = 0,
104 	EDMR,
105 	EDTRR,
106 	EDRRR,
107 	EESR,
108 	EESIPR,
109 	TDLAR,
110 	TDFAR,
111 	TDFXR,
112 	TDFFR,
113 	RDLAR,
114 	RDFAR,
115 	RDFXR,
116 	RDFFR,
117 	TRSCER,
118 	RMFCR,
119 	TFTR,
120 	FDR,
121 	RMCR,
122 	EDOCR,
123 	TFUCR,
124 	RFOCR,
125 	FCFTR,
126 	RPADIR,
127 	TRIMD,
128 	RBWAR,
129 	TBRAR,
130 
131 	/* Ether registers */
132 	ECMR,
133 	ECSR,
134 	ECSIPR,
135 	PIR,
136 	PSR,
137 	RDMLR,
138 	PIPR,
139 	RFLR,
140 	IPGR,
141 	APR,
142 	MPR,
143 	PFTCR,
144 	PFRCR,
145 	RFCR,
146 	RFCF,
147 	TPAUSER,
148 	TPAUSECR,
149 	BCFR,
150 	BCFRR,
151 	GECMR,
152 	BCULR,
153 	MAHR,
154 	MALR,
155 	TROCR,
156 	CDCR,
157 	LCCR,
158 	CNDCR,
159 	CEFCR,
160 	FRECR,
161 	TSFRCR,
162 	TLFRCR,
163 	CERCR,
164 	CEECR,
165 	RMIIMR, /* R8A7790 */
166 	MAFCR,
167 	RTRATE,
168 	CSMR,
169 	RMII_MII,
170 
171 	/* This value must be written at last. */
172 	SH_ETH_MAX_REGISTER_OFFSET,
173 };
174 
175 static const u16 sh_eth_offset_gigabit[SH_ETH_MAX_REGISTER_OFFSET] = {
176 	[EDSR]	= 0x0000,
177 	[EDMR]	= 0x0400,
178 	[EDTRR]	= 0x0408,
179 	[EDRRR]	= 0x0410,
180 	[EESR]	= 0x0428,
181 	[EESIPR]	= 0x0430,
182 	[TDLAR]	= 0x0010,
183 	[TDFAR]	= 0x0014,
184 	[TDFXR]	= 0x0018,
185 	[TDFFR]	= 0x001c,
186 	[RDLAR]	= 0x0030,
187 	[RDFAR]	= 0x0034,
188 	[RDFXR]	= 0x0038,
189 	[RDFFR]	= 0x003c,
190 	[TRSCER]	= 0x0438,
191 	[RMFCR]	= 0x0440,
192 	[TFTR]	= 0x0448,
193 	[FDR]	= 0x0450,
194 	[RMCR]	= 0x0458,
195 	[RPADIR]	= 0x0460,
196 	[FCFTR]	= 0x0468,
197 	[CSMR] = 0x04E4,
198 
199 	[ECMR]	= 0x0500,
200 	[ECSR]	= 0x0510,
201 	[ECSIPR]	= 0x0518,
202 	[PIR]	= 0x0520,
203 	[PSR]	= 0x0528,
204 	[PIPR]	= 0x052c,
205 	[RFLR]	= 0x0508,
206 	[APR]	= 0x0554,
207 	[MPR]	= 0x0558,
208 	[PFTCR]	= 0x055c,
209 	[PFRCR]	= 0x0560,
210 	[TPAUSER]	= 0x0564,
211 	[GECMR]	= 0x05b0,
212 	[BCULR]	= 0x05b4,
213 	[MAHR]	= 0x05c0,
214 	[MALR]	= 0x05c8,
215 	[TROCR]	= 0x0700,
216 	[CDCR]	= 0x0708,
217 	[LCCR]	= 0x0710,
218 	[CEFCR]	= 0x0740,
219 	[FRECR]	= 0x0748,
220 	[TSFRCR]	= 0x0750,
221 	[TLFRCR]	= 0x0758,
222 	[RFCR]	= 0x0760,
223 	[CERCR]	= 0x0768,
224 	[CEECR]	= 0x0770,
225 	[MAFCR]	= 0x0778,
226 	[RMII_MII] =  0x0790,
227 };
228 
229 #if defined(SH_ETH_TYPE_RZ)
230 static const u16 sh_eth_offset_rz[SH_ETH_MAX_REGISTER_OFFSET] = {
231 	[EDSR]	= 0x0000,
232 	[EDMR]	= 0x0400,
233 	[EDTRR]	= 0x0408,
234 	[EDRRR]	= 0x0410,
235 	[EESR]	= 0x0428,
236 	[EESIPR]	= 0x0430,
237 	[TDLAR]	= 0x0010,
238 	[TDFAR]	= 0x0014,
239 	[TDFXR]	= 0x0018,
240 	[TDFFR]	= 0x001c,
241 	[RDLAR]	= 0x0030,
242 	[RDFAR]	= 0x0034,
243 	[RDFXR]	= 0x0038,
244 	[RDFFR]	= 0x003c,
245 	[TRSCER]	= 0x0438,
246 	[RMFCR]	= 0x0440,
247 	[TFTR]	= 0x0448,
248 	[FDR]	= 0x0450,
249 	[RMCR]	= 0x0458,
250 	[RPADIR]	= 0x0460,
251 	[FCFTR]	= 0x0468,
252 	[CSMR] = 0x04E4,
253 
254 	[ECMR]	= 0x0500,
255 	[ECSR]	= 0x0510,
256 	[ECSIPR]	= 0x0518,
257 	[PSR]	= 0x0528,
258 	[PIPR]	= 0x052c,
259 	[RFLR]	= 0x0508,
260 	[APR]	= 0x0554,
261 	[MPR]	= 0x0558,
262 	[PFTCR]	= 0x055c,
263 	[PFRCR]	= 0x0560,
264 	[TPAUSER]	= 0x0564,
265 	[GECMR]	= 0x05b0,
266 	[BCULR]	= 0x05b4,
267 	[MAHR]	= 0x05c0,
268 	[MALR]	= 0x05c8,
269 	[TROCR]	= 0x0700,
270 	[CDCR]	= 0x0708,
271 	[LCCR]	= 0x0710,
272 	[CEFCR]	= 0x0740,
273 	[FRECR]	= 0x0748,
274 	[TSFRCR]	= 0x0750,
275 	[TLFRCR]	= 0x0758,
276 	[RFCR]	= 0x0760,
277 	[CERCR]	= 0x0768,
278 	[CEECR]	= 0x0770,
279 	[MAFCR]	= 0x0778,
280 	[RMII_MII] =  0x0790,
281 };
282 #endif
283 
284 static const u16 sh_eth_offset_fast_sh4[SH_ETH_MAX_REGISTER_OFFSET] = {
285 	[ECMR]	= 0x0100,
286 	[RFLR]	= 0x0108,
287 	[ECSR]	= 0x0110,
288 	[ECSIPR]	= 0x0118,
289 	[PIR]	= 0x0120,
290 	[PSR]	= 0x0128,
291 	[RDMLR]	= 0x0140,
292 	[IPGR]	= 0x0150,
293 	[APR]	= 0x0154,
294 	[MPR]	= 0x0158,
295 	[TPAUSER]	= 0x0164,
296 	[RFCF]	= 0x0160,
297 	[TPAUSECR]	= 0x0168,
298 	[BCFRR]	= 0x016c,
299 	[MAHR]	= 0x01c0,
300 	[MALR]	= 0x01c8,
301 	[TROCR]	= 0x01d0,
302 	[CDCR]	= 0x01d4,
303 	[LCCR]	= 0x01d8,
304 	[CNDCR]	= 0x01dc,
305 	[CEFCR]	= 0x01e4,
306 	[FRECR]	= 0x01e8,
307 	[TSFRCR]	= 0x01ec,
308 	[TLFRCR]	= 0x01f0,
309 	[RFCR]	= 0x01f4,
310 	[MAFCR]	= 0x01f8,
311 	[RTRATE]	= 0x01fc,
312 
313 	[EDMR]	= 0x0000,
314 	[EDTRR]	= 0x0008,
315 	[EDRRR]	= 0x0010,
316 	[TDLAR]	= 0x0018,
317 	[RDLAR]	= 0x0020,
318 	[EESR]	= 0x0028,
319 	[EESIPR]	= 0x0030,
320 	[TRSCER]	= 0x0038,
321 	[RMFCR]	= 0x0040,
322 	[TFTR]	= 0x0048,
323 	[FDR]	= 0x0050,
324 	[RMCR]	= 0x0058,
325 	[TFUCR]	= 0x0064,
326 	[RFOCR]	= 0x0068,
327 	[RMIIMR] = 0x006C,
328 	[FCFTR]	= 0x0070,
329 	[RPADIR]	= 0x0078,
330 	[TRIMD]	= 0x007c,
331 	[RBWAR]	= 0x00c8,
332 	[RDFAR]	= 0x00cc,
333 	[TBRAR]	= 0x00d4,
334 	[TDFAR]	= 0x00d8,
335 };
336 
337 /* Register Address */
338 #if defined(CONFIG_CPU_SH7763) || defined(CONFIG_CPU_SH7734)
339 #define SH_ETH_TYPE_GETHER
340 #define BASE_IO_ADDR	0xfee00000
341 #elif defined(CONFIG_CPU_SH7757) || \
342 	defined(CONFIG_CPU_SH7752) || \
343 	defined(CONFIG_CPU_SH7753)
344 #if defined(CONFIG_SH_ETHER_USE_GETHER)
345 #define SH_ETH_TYPE_GETHER
346 #define BASE_IO_ADDR	0xfee00000
347 #else
348 #define SH_ETH_TYPE_ETHER
349 #define BASE_IO_ADDR	0xfef00000
350 #endif
351 #elif defined(CONFIG_CPU_SH7724)
352 #define SH_ETH_TYPE_ETHER
353 #define BASE_IO_ADDR	0xA4600000
354 #elif defined(CONFIG_R8A7740)
355 #define SH_ETH_TYPE_GETHER
356 #define BASE_IO_ADDR	0xE9A00000
357 #elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
358 	defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
359 #define SH_ETH_TYPE_ETHER
360 #define BASE_IO_ADDR	0xEE700200
361 #elif defined(CONFIG_R7S72100)
362 #define SH_ETH_TYPE_RZ
363 #define BASE_IO_ADDR	0xE8203000
364 #endif
365 
366 /*
367  * Register's bits
368  * Copy from Linux driver source code
369  */
370 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_RZ)
371 /* EDSR */
372 enum EDSR_BIT {
373 	EDSR_ENT = 0x01, EDSR_ENR = 0x02,
374 };
375 #define EDSR_ENALL (EDSR_ENT|EDSR_ENR)
376 #endif
377 
378 /* EDMR */
379 enum DMAC_M_BIT {
380 	EDMR_DL1 = 0x20, EDMR_DL0 = 0x10,
381 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_RZ)
382 	EDMR_SRST	= 0x03, /* Receive/Send reset */
383 	EMDR_DESC_R	= 0x30, /* Descriptor reserve size */
384 	EDMR_EL		= 0x40, /* Litte endian */
385 #elif defined(SH_ETH_TYPE_ETHER)
386 	EDMR_SRST	= 0x01,
387 	EMDR_DESC_R	= 0x30, /* Descriptor reserve size */
388 	EDMR_EL		= 0x40, /* Litte endian */
389 #else
390 	EDMR_SRST = 0x01,
391 #endif
392 };
393 
394 #if CONFIG_SH_ETHER_ALIGNE_SIZE == 64
395 # define EMDR_DESC EDMR_DL1
396 #elif CONFIG_SH_ETHER_ALIGNE_SIZE == 32
397 # define EMDR_DESC EDMR_DL0
398 #elif CONFIG_SH_ETHER_ALIGNE_SIZE == 16 /* Default */
399 # define EMDR_DESC 0
400 #endif
401 
402 /* RFLR */
403 #define RFLR_RFL_MIN	0x05EE	/* Recv Frame length 1518 byte */
404 
405 /* EDTRR */
406 enum DMAC_T_BIT {
407 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_RZ)
408 	EDTRR_TRNS = 0x03,
409 #else
410 	EDTRR_TRNS = 0x01,
411 #endif
412 };
413 
414 /* GECMR */
415 enum GECMR_BIT {
416 #if defined(CONFIG_CPU_SH7757) || \
417 	defined(CONFIG_CPU_SH7752) || \
418 	defined(CONFIG_CPU_SH7753)
419 	GECMR_1000B = 0x20, GECMR_100B = 0x01, GECMR_10B = 0x00,
420 #else
421 	GECMR_1000B = 0x01, GECMR_100B = 0x04, GECMR_10B = 0x00,
422 #endif
423 };
424 
425 /* EDRRR*/
426 enum EDRRR_R_BIT {
427 	EDRRR_R = 0x01,
428 };
429 
430 /* TPAUSER */
431 enum TPAUSER_BIT {
432 	TPAUSER_TPAUSE = 0x0000ffff,
433 	TPAUSER_UNLIMITED = 0,
434 };
435 
436 /* BCFR */
437 enum BCFR_BIT {
438 	BCFR_RPAUSE = 0x0000ffff,
439 	BCFR_UNLIMITED = 0,
440 };
441 
442 /* PIR */
443 enum PIR_BIT {
444 	PIR_MDI = 0x08, PIR_MDO = 0x04, PIR_MMD = 0x02, PIR_MDC = 0x01,
445 };
446 
447 /* PSR */
448 enum PHY_STATUS_BIT { PHY_ST_LINK = 0x01, };
449 
450 /* EESR */
451 enum EESR_BIT {
452 #if defined(SH_ETH_TYPE_ETHER)
453 	EESR_TWB  = 0x40000000,
454 #else
455 	EESR_TWB  = 0xC0000000,
456 	EESR_TC1  = 0x20000000,
457 	EESR_TUC  = 0x10000000,
458 	EESR_ROC  = 0x80000000,
459 #endif
460 	EESR_TABT = 0x04000000,
461 	EESR_RABT = 0x02000000, EESR_RFRMER = 0x01000000,
462 #if defined(SH_ETH_TYPE_ETHER)
463 	EESR_ADE  = 0x00800000,
464 #endif
465 	EESR_ECI  = 0x00400000,
466 	EESR_FTC  = 0x00200000, EESR_TDE  = 0x00100000,
467 	EESR_TFE  = 0x00080000, EESR_FRC  = 0x00040000,
468 	EESR_RDE  = 0x00020000, EESR_RFE  = 0x00010000,
469 #if defined(SH_ETH_TYPE_ETHER)
470 	EESR_CND  = 0x00000800,
471 #endif
472 	EESR_DLC  = 0x00000400,
473 	EESR_CD   = 0x00000200, EESR_RTO  = 0x00000100,
474 	EESR_RMAF = 0x00000080, EESR_CEEF = 0x00000040,
475 	EESR_CELF = 0x00000020, EESR_RRF  = 0x00000010,
476 	EESR_RTLF = 0x00000008, EESR_RTSF = 0x00000004,
477 	EESR_PRE  = 0x00000002, EESR_CERF = 0x00000001,
478 };
479 
480 
481 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_RZ)
482 # define TX_CHECK (EESR_TC1 | EESR_FTC)
483 # define EESR_ERR_CHECK	(EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE \
484 		| EESR_RFRMER | EESR_TFE | EESR_TDE | EESR_ECI)
485 # define TX_ERROR_CEHCK (EESR_TWB | EESR_TABT | EESR_TDE | EESR_TFE)
486 
487 #else
488 # define TX_CHECK (EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO)
489 # define EESR_ERR_CHECK	(EESR_TWB | EESR_TABT | EESR_RABT | EESR_RDE \
490 		| EESR_RFRMER | EESR_ADE | EESR_TFE | EESR_TDE | EESR_ECI)
491 # define TX_ERROR_CEHCK (EESR_TWB | EESR_TABT | EESR_ADE | EESR_TDE | EESR_TFE)
492 #endif
493 
494 /* EESIPR */
495 enum DMAC_IM_BIT {
496 	DMAC_M_TWB = 0x40000000, DMAC_M_TABT = 0x04000000,
497 	DMAC_M_RABT = 0x02000000,
498 	DMAC_M_RFRMER = 0x01000000, DMAC_M_ADF = 0x00800000,
499 	DMAC_M_ECI = 0x00400000, DMAC_M_FTC = 0x00200000,
500 	DMAC_M_TDE = 0x00100000, DMAC_M_TFE = 0x00080000,
501 	DMAC_M_FRC = 0x00040000, DMAC_M_RDE = 0x00020000,
502 	DMAC_M_RFE = 0x00010000, DMAC_M_TINT4 = 0x00000800,
503 	DMAC_M_TINT3 = 0x00000400, DMAC_M_TINT2 = 0x00000200,
504 	DMAC_M_TINT1 = 0x00000100, DMAC_M_RINT8 = 0x00000080,
505 	DMAC_M_RINT5 = 0x00000010, DMAC_M_RINT4 = 0x00000008,
506 	DMAC_M_RINT3 = 0x00000004, DMAC_M_RINT2 = 0x00000002,
507 	DMAC_M_RINT1 = 0x00000001,
508 };
509 
510 /* Receive descriptor bit */
511 enum RD_STS_BIT {
512 	RD_RACT = 0x80000000, RD_RDLE = 0x40000000,
513 	RD_RFP1 = 0x20000000, RD_RFP0 = 0x10000000,
514 	RD_RFE = 0x08000000, RD_RFS10 = 0x00000200,
515 	RD_RFS9 = 0x00000100, RD_RFS8 = 0x00000080,
516 	RD_RFS7 = 0x00000040, RD_RFS6 = 0x00000020,
517 	RD_RFS5 = 0x00000010, RD_RFS4 = 0x00000008,
518 	RD_RFS3 = 0x00000004, RD_RFS2 = 0x00000002,
519 	RD_RFS1 = 0x00000001,
520 };
521 #define RDF1ST	RD_RFP1
522 #define RDFEND	RD_RFP0
523 #define RD_RFP	(RD_RFP1|RD_RFP0)
524 
525 /* RDFFR*/
526 enum RDFFR_BIT {
527 	RDFFR_RDLF = 0x01,
528 };
529 
530 /* FCFTR */
531 enum FCFTR_BIT {
532 	FCFTR_RFF2 = 0x00040000, FCFTR_RFF1 = 0x00020000,
533 	FCFTR_RFF0 = 0x00010000, FCFTR_RFD2 = 0x00000004,
534 	FCFTR_RFD1 = 0x00000002, FCFTR_RFD0 = 0x00000001,
535 };
536 #define FIFO_F_D_RFF	(FCFTR_RFF2|FCFTR_RFF1|FCFTR_RFF0)
537 #define FIFO_F_D_RFD	(FCFTR_RFD2|FCFTR_RFD1|FCFTR_RFD0)
538 
539 /* Transfer descriptor bit */
540 enum TD_STS_BIT {
541 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_ETHER) || \
542 	defined(SH_ETH_TYPE_RZ)
543 	TD_TACT = 0x80000000,
544 #else
545 	TD_TACT = 0x7fffffff,
546 #endif
547 	TD_TDLE = 0x40000000, TD_TFP1 = 0x20000000,
548 	TD_TFP0 = 0x10000000,
549 };
550 #define TDF1ST	TD_TFP1
551 #define TDFEND	TD_TFP0
552 #define TD_TFP	(TD_TFP1|TD_TFP0)
553 
554 /* RMCR */
555 enum RECV_RST_BIT { RMCR_RST = 0x01, };
556 /* ECMR */
557 enum FELIC_MODE_BIT {
558 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_RZ)
559 	ECMR_TRCCM = 0x04000000, ECMR_RCSC = 0x00800000,
560 	ECMR_DPAD = 0x00200000, ECMR_RZPF = 0x00100000,
561 #endif
562 	ECMR_ZPF = 0x00080000, ECMR_PFR = 0x00040000, ECMR_RXF = 0x00020000,
563 	ECMR_TXF = 0x00010000, ECMR_MCT = 0x00002000, ECMR_PRCEF = 0x00001000,
564 	ECMR_PMDE = 0x00000200, ECMR_RE = 0x00000040, ECMR_TE = 0x00000020,
565 	ECMR_ILB = 0x00000008, ECMR_ELB = 0x00000004, ECMR_DM = 0x00000002,
566 	ECMR_PRM = 0x00000001,
567 #ifdef CONFIG_CPU_SH7724
568 	ECMR_RTM = 0x00000010,
569 #elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
570 	defined(CONFIG_R8A7793) || defined(CONFIG_R8A7794)
571 	ECMR_RTM = 0x00000004,
572 #endif
573 
574 };
575 
576 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_RZ)
577 #define ECMR_CHG_DM (ECMR_TRCCM | ECMR_RZPF | ECMR_ZPF | ECMR_PFR | \
578 			ECMR_RXF | ECMR_TXF | ECMR_MCT)
579 #elif defined(SH_ETH_TYPE_ETHER)
580 #define ECMR_CHG_DM (ECMR_ZPF | ECMR_PFR | ECMR_RXF | ECMR_TXF)
581 #else
582 #define ECMR_CHG_DM	(ECMR_ZPF | ECMR_PFR | ECMR_RXF | ECMR_TXF | ECMR_MCT)
583 #endif
584 
585 /* ECSR */
586 enum ECSR_STATUS_BIT {
587 #if defined(SH_ETH_TYPE_ETHER)
588 	ECSR_BRCRX = 0x20, ECSR_PSRTO = 0x10,
589 #endif
590 	ECSR_LCHNG = 0x04,
591 	ECSR_MPD = 0x02, ECSR_ICD = 0x01,
592 };
593 
594 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_RZ)
595 # define ECSR_INIT (ECSR_ICD | ECSIPR_MPDIP)
596 #else
597 # define ECSR_INIT (ECSR_BRCRX | ECSR_PSRTO | \
598 			ECSR_LCHNG | ECSR_ICD | ECSIPR_MPDIP)
599 #endif
600 
601 /* ECSIPR */
602 enum ECSIPR_STATUS_MASK_BIT {
603 #if defined(SH_ETH_TYPE_ETHER)
604 	ECSIPR_BRCRXIP = 0x20,
605 	ECSIPR_PSRTOIP = 0x10,
606 #elif defined(SH_ETY_TYPE_GETHER)
607 	ECSIPR_PSRTOIP = 0x10,
608 	ECSIPR_PHYIP = 0x08,
609 #endif
610 	ECSIPR_LCHNGIP = 0x04,
611 	ECSIPR_MPDIP = 0x02,
612 	ECSIPR_ICDIP = 0x01,
613 };
614 
615 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_RZ)
616 # define ECSIPR_INIT (ECSIPR_LCHNGIP | ECSIPR_ICDIP | ECSIPR_MPDIP)
617 #else
618 # define ECSIPR_INIT (ECSIPR_BRCRXIP | ECSIPR_PSRTOIP | ECSIPR_LCHNGIP | \
619 				ECSIPR_ICDIP | ECSIPR_MPDIP)
620 #endif
621 
622 /* APR */
623 enum APR_BIT {
624 	APR_AP = 0x00000004,
625 };
626 
627 /* MPR */
628 enum MPR_BIT {
629 	MPR_MP = 0x00000006,
630 };
631 
632 /* TRSCER */
633 enum DESC_I_BIT {
634 	DESC_I_TINT4 = 0x0800, DESC_I_TINT3 = 0x0400, DESC_I_TINT2 = 0x0200,
635 	DESC_I_TINT1 = 0x0100, DESC_I_RINT8 = 0x0080, DESC_I_RINT5 = 0x0010,
636 	DESC_I_RINT4 = 0x0008, DESC_I_RINT3 = 0x0004, DESC_I_RINT2 = 0x0002,
637 	DESC_I_RINT1 = 0x0001,
638 };
639 
640 /* RPADIR */
641 enum RPADIR_BIT {
642 	RPADIR_PADS1 = 0x20000, RPADIR_PADS0 = 0x10000,
643 	RPADIR_PADR = 0x0003f,
644 };
645 
646 #if defined(SH_ETH_TYPE_GETHER) || defined(SH_ETH_TYPE_RZ)
647 # define RPADIR_INIT (0x00)
648 #else
649 # define RPADIR_INIT (RPADIR_PADS1)
650 #endif
651 
652 /* FDR */
653 enum FIFO_SIZE_BIT {
654 	FIFO_SIZE_T = 0x00000700, FIFO_SIZE_R = 0x00000007,
655 };
656 
657 static inline unsigned long sh_eth_reg_addr(struct sh_eth_dev *eth,
658 					    int enum_index)
659 {
660 #if defined(SH_ETH_TYPE_GETHER)
661 	const u16 *reg_offset = sh_eth_offset_gigabit;
662 #elif defined(SH_ETH_TYPE_ETHER)
663 	const u16 *reg_offset = sh_eth_offset_fast_sh4;
664 #elif defined(SH_ETH_TYPE_RZ)
665 	const u16 *reg_offset = sh_eth_offset_rz;
666 #else
667 #error
668 #endif
669 	return BASE_IO_ADDR + reg_offset[enum_index] + 0x800 * eth->port;
670 }
671 
672 static inline void sh_eth_write(struct sh_eth_dev *eth, unsigned long data,
673 				int enum_index)
674 {
675 	outl(data, sh_eth_reg_addr(eth, enum_index));
676 }
677 
678 static inline unsigned long sh_eth_read(struct sh_eth_dev *eth,
679 					int enum_index)
680 {
681 	return inl(sh_eth_reg_addr(eth, enum_index));
682 }
683