1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Atmel MACB Ethernet Controller driver
4  *
5  * Copyright (C) 2004-2006 Atmel Corporation
6  */
7 #ifndef _MACB_H
8 #define _MACB_H
9 
10 #include <linux/clk.h>
11 #include <linux/phylink.h>
12 #include <linux/ptp_clock_kernel.h>
13 #include <linux/net_tstamp.h>
14 #include <linux/interrupt.h>
15 #include <linux/phy/phy.h>
16 
17 #if defined(CONFIG_ARCH_DMA_ADDR_T_64BIT) || defined(CONFIG_MACB_USE_HWSTAMP)
18 #define MACB_EXT_DESC
19 #endif
20 
21 #define MACB_GREGS_NBR 16
22 #define MACB_GREGS_VERSION 2
23 #define MACB_MAX_QUEUES 8
24 
25 /* MACB register offsets */
26 #define MACB_NCR		0x0000 /* Network Control */
27 #define MACB_NCFGR		0x0004 /* Network Config */
28 #define MACB_NSR		0x0008 /* Network Status */
29 #define MACB_TAR		0x000c /* AT91RM9200 only */
30 #define MACB_TCR		0x0010 /* AT91RM9200 only */
31 #define MACB_TSR		0x0014 /* Transmit Status */
32 #define MACB_RBQP		0x0018 /* RX Q Base Address */
33 #define MACB_TBQP		0x001c /* TX Q Base Address */
34 #define MACB_RSR		0x0020 /* Receive Status */
35 #define MACB_ISR		0x0024 /* Interrupt Status */
36 #define MACB_IER		0x0028 /* Interrupt Enable */
37 #define MACB_IDR		0x002c /* Interrupt Disable */
38 #define MACB_IMR		0x0030 /* Interrupt Mask */
39 #define MACB_MAN		0x0034 /* PHY Maintenance */
40 #define MACB_PTR		0x0038
41 #define MACB_PFR		0x003c
42 #define MACB_FTO		0x0040
43 #define MACB_SCF		0x0044
44 #define MACB_MCF		0x0048
45 #define MACB_FRO		0x004c
46 #define MACB_FCSE		0x0050
47 #define MACB_ALE		0x0054
48 #define MACB_DTF		0x0058
49 #define MACB_LCOL		0x005c
50 #define MACB_EXCOL		0x0060
51 #define MACB_TUND		0x0064
52 #define MACB_CSE		0x0068
53 #define MACB_RRE		0x006c
54 #define MACB_ROVR		0x0070
55 #define MACB_RSE		0x0074
56 #define MACB_ELE		0x0078
57 #define MACB_RJA		0x007c
58 #define MACB_USF		0x0080
59 #define MACB_STE		0x0084
60 #define MACB_RLE		0x0088
61 #define MACB_TPF		0x008c
62 #define MACB_HRB		0x0090
63 #define MACB_HRT		0x0094
64 #define MACB_SA1B		0x0098
65 #define MACB_SA1T		0x009c
66 #define MACB_SA2B		0x00a0
67 #define MACB_SA2T		0x00a4
68 #define MACB_SA3B		0x00a8
69 #define MACB_SA3T		0x00ac
70 #define MACB_SA4B		0x00b0
71 #define MACB_SA4T		0x00b4
72 #define MACB_TID		0x00b8
73 #define MACB_TPQ		0x00bc
74 #define MACB_USRIO		0x00c0
75 #define MACB_WOL		0x00c4
76 #define MACB_MID		0x00fc
77 #define MACB_TBQPH		0x04C8
78 #define MACB_RBQPH		0x04D4
79 
80 /* GEM register offsets. */
81 #define GEM_NCR			0x0000 /* Network Control */
82 #define GEM_NCFGR		0x0004 /* Network Config */
83 #define GEM_USRIO		0x000c /* User IO */
84 #define GEM_DMACFG		0x0010 /* DMA Configuration */
85 #define GEM_JML			0x0048 /* Jumbo Max Length */
86 #define GEM_HS_MAC_CONFIG	0x0050 /* GEM high speed config */
87 #define GEM_HRB			0x0080 /* Hash Bottom */
88 #define GEM_HRT			0x0084 /* Hash Top */
89 #define GEM_SA1B		0x0088 /* Specific1 Bottom */
90 #define GEM_SA1T		0x008C /* Specific1 Top */
91 #define GEM_SA2B		0x0090 /* Specific2 Bottom */
92 #define GEM_SA2T		0x0094 /* Specific2 Top */
93 #define GEM_SA3B		0x0098 /* Specific3 Bottom */
94 #define GEM_SA3T		0x009C /* Specific3 Top */
95 #define GEM_SA4B		0x00A0 /* Specific4 Bottom */
96 #define GEM_SA4T		0x00A4 /* Specific4 Top */
97 #define GEM_WOL			0x00b8 /* Wake on LAN */
98 #define GEM_EFTSH		0x00e8 /* PTP Event Frame Transmitted Seconds Register 47:32 */
99 #define GEM_EFRSH		0x00ec /* PTP Event Frame Received Seconds Register 47:32 */
100 #define GEM_PEFTSH		0x00f0 /* PTP Peer Event Frame Transmitted Seconds Register 47:32 */
101 #define GEM_PEFRSH		0x00f4 /* PTP Peer Event Frame Received Seconds Register 47:32 */
102 #define GEM_OTX			0x0100 /* Octets transmitted */
103 #define GEM_OCTTXL		0x0100 /* Octets transmitted [31:0] */
104 #define GEM_OCTTXH		0x0104 /* Octets transmitted [47:32] */
105 #define GEM_TXCNT		0x0108 /* Frames Transmitted counter */
106 #define GEM_TXBCCNT		0x010c /* Broadcast Frames counter */
107 #define GEM_TXMCCNT		0x0110 /* Multicast Frames counter */
108 #define GEM_TXPAUSECNT		0x0114 /* Pause Frames Transmitted Counter */
109 #define GEM_TX64CNT		0x0118 /* 64 byte Frames TX counter */
110 #define GEM_TX65CNT		0x011c /* 65-127 byte Frames TX counter */
111 #define GEM_TX128CNT		0x0120 /* 128-255 byte Frames TX counter */
112 #define GEM_TX256CNT		0x0124 /* 256-511 byte Frames TX counter */
113 #define GEM_TX512CNT		0x0128 /* 512-1023 byte Frames TX counter */
114 #define GEM_TX1024CNT		0x012c /* 1024-1518 byte Frames TX counter */
115 #define GEM_TX1519CNT		0x0130 /* 1519+ byte Frames TX counter */
116 #define GEM_TXURUNCNT		0x0134 /* TX under run error counter */
117 #define GEM_SNGLCOLLCNT		0x0138 /* Single Collision Frame Counter */
118 #define GEM_MULTICOLLCNT	0x013c /* Multiple Collision Frame Counter */
119 #define GEM_EXCESSCOLLCNT	0x0140 /* Excessive Collision Frame Counter */
120 #define GEM_LATECOLLCNT		0x0144 /* Late Collision Frame Counter */
121 #define GEM_TXDEFERCNT		0x0148 /* Deferred Transmission Frame Counter */
122 #define GEM_TXCSENSECNT		0x014c /* Carrier Sense Error Counter */
123 #define GEM_ORX			0x0150 /* Octets received */
124 #define GEM_OCTRXL		0x0150 /* Octets received [31:0] */
125 #define GEM_OCTRXH		0x0154 /* Octets received [47:32] */
126 #define GEM_RXCNT		0x0158 /* Frames Received Counter */
127 #define GEM_RXBROADCNT		0x015c /* Broadcast Frames Received Counter */
128 #define GEM_RXMULTICNT		0x0160 /* Multicast Frames Received Counter */
129 #define GEM_RXPAUSECNT		0x0164 /* Pause Frames Received Counter */
130 #define GEM_RX64CNT		0x0168 /* 64 byte Frames RX Counter */
131 #define GEM_RX65CNT		0x016c /* 65-127 byte Frames RX Counter */
132 #define GEM_RX128CNT		0x0170 /* 128-255 byte Frames RX Counter */
133 #define GEM_RX256CNT		0x0174 /* 256-511 byte Frames RX Counter */
134 #define GEM_RX512CNT		0x0178 /* 512-1023 byte Frames RX Counter */
135 #define GEM_RX1024CNT		0x017c /* 1024-1518 byte Frames RX Counter */
136 #define GEM_RX1519CNT		0x0180 /* 1519+ byte Frames RX Counter */
137 #define GEM_RXUNDRCNT		0x0184 /* Undersize Frames Received Counter */
138 #define GEM_RXOVRCNT		0x0188 /* Oversize Frames Received Counter */
139 #define GEM_RXJABCNT		0x018c /* Jabbers Received Counter */
140 #define GEM_RXFCSCNT		0x0190 /* Frame Check Sequence Error Counter */
141 #define GEM_RXLENGTHCNT		0x0194 /* Length Field Error Counter */
142 #define GEM_RXSYMBCNT		0x0198 /* Symbol Error Counter */
143 #define GEM_RXALIGNCNT		0x019c /* Alignment Error Counter */
144 #define GEM_RXRESERRCNT		0x01a0 /* Receive Resource Error Counter */
145 #define GEM_RXORCNT		0x01a4 /* Receive Overrun Counter */
146 #define GEM_RXIPCCNT		0x01a8 /* IP header Checksum Error Counter */
147 #define GEM_RXTCPCCNT		0x01ac /* TCP Checksum Error Counter */
148 #define GEM_RXUDPCCNT		0x01b0 /* UDP Checksum Error Counter */
149 #define GEM_TISUBN		0x01bc /* 1588 Timer Increment Sub-ns */
150 #define GEM_TSH			0x01c0 /* 1588 Timer Seconds High */
151 #define GEM_TSL			0x01d0 /* 1588 Timer Seconds Low */
152 #define GEM_TN			0x01d4 /* 1588 Timer Nanoseconds */
153 #define GEM_TA			0x01d8 /* 1588 Timer Adjust */
154 #define GEM_TI			0x01dc /* 1588 Timer Increment */
155 #define GEM_EFTSL		0x01e0 /* PTP Event Frame Tx Seconds Low */
156 #define GEM_EFTN		0x01e4 /* PTP Event Frame Tx Nanoseconds */
157 #define GEM_EFRSL		0x01e8 /* PTP Event Frame Rx Seconds Low */
158 #define GEM_EFRN		0x01ec /* PTP Event Frame Rx Nanoseconds */
159 #define GEM_PEFTSL		0x01f0 /* PTP Peer Event Frame Tx Secs Low */
160 #define GEM_PEFTN		0x01f4 /* PTP Peer Event Frame Tx Ns */
161 #define GEM_PEFRSL		0x01f8 /* PTP Peer Event Frame Rx Sec Low */
162 #define GEM_PEFRN		0x01fc /* PTP Peer Event Frame Rx Ns */
163 #define GEM_PCSCNTRL		0x0200 /* PCS Control */
164 #define GEM_PCSSTS		0x0204 /* PCS Status */
165 #define GEM_PCSPHYTOPID		0x0208 /* PCS PHY Top ID */
166 #define GEM_PCSPHYBOTID		0x020c /* PCS PHY Bottom ID */
167 #define GEM_PCSANADV		0x0210 /* PCS AN Advertisement */
168 #define GEM_PCSANLPBASE		0x0214 /* PCS AN Link Partner Base */
169 #define GEM_PCSANEXP		0x0218 /* PCS AN Expansion */
170 #define GEM_PCSANNPTX		0x021c /* PCS AN Next Page TX */
171 #define GEM_PCSANNPLP		0x0220 /* PCS AN Next Page LP */
172 #define GEM_PCSANEXTSTS		0x023c /* PCS AN Extended Status */
173 #define GEM_DCFG1		0x0280 /* Design Config 1 */
174 #define GEM_DCFG2		0x0284 /* Design Config 2 */
175 #define GEM_DCFG3		0x0288 /* Design Config 3 */
176 #define GEM_DCFG4		0x028c /* Design Config 4 */
177 #define GEM_DCFG5		0x0290 /* Design Config 5 */
178 #define GEM_DCFG6		0x0294 /* Design Config 6 */
179 #define GEM_DCFG7		0x0298 /* Design Config 7 */
180 #define GEM_DCFG8		0x029C /* Design Config 8 */
181 #define GEM_DCFG10		0x02A4 /* Design Config 10 */
182 #define GEM_DCFG12		0x02AC /* Design Config 12 */
183 #define GEM_USX_CONTROL		0x0A80 /* High speed PCS control register */
184 #define GEM_USX_STATUS		0x0A88 /* High speed PCS status register */
185 
186 #define GEM_TXBDCTRL	0x04cc /* TX Buffer Descriptor control register */
187 #define GEM_RXBDCTRL	0x04d0 /* RX Buffer Descriptor control register */
188 
189 /* Screener Type 2 match registers */
190 #define GEM_SCRT2		0x540
191 
192 /* EtherType registers */
193 #define GEM_ETHT		0x06E0
194 
195 /* Type 2 compare registers */
196 #define GEM_T2CMPW0		0x0700
197 #define GEM_T2CMPW1		0x0704
198 #define T2CMP_OFST(t2idx)	(t2idx * 2)
199 
200 /* type 2 compare registers
201  * each location requires 3 compare regs
202  */
203 #define GEM_IP4SRC_CMP(idx)		(idx * 3)
204 #define GEM_IP4DST_CMP(idx)		(idx * 3 + 1)
205 #define GEM_PORT_CMP(idx)		(idx * 3 + 2)
206 
207 /* Which screening type 2 EtherType register will be used (0 - 7) */
208 #define SCRT2_ETHT		0
209 
210 #define GEM_ISR(hw_q)		(0x0400 + ((hw_q) << 2))
211 #define GEM_TBQP(hw_q)		(0x0440 + ((hw_q) << 2))
212 #define GEM_TBQPH(hw_q)		(0x04C8)
213 #define GEM_RBQP(hw_q)		(0x0480 + ((hw_q) << 2))
214 #define GEM_RBQS(hw_q)		(0x04A0 + ((hw_q) << 2))
215 #define GEM_RBQPH(hw_q)		(0x04D4)
216 #define GEM_IER(hw_q)		(0x0600 + ((hw_q) << 2))
217 #define GEM_IDR(hw_q)		(0x0620 + ((hw_q) << 2))
218 #define GEM_IMR(hw_q)		(0x0640 + ((hw_q) << 2))
219 
220 /* Bitfields in NCR */
221 #define MACB_LB_OFFSET		0 /* reserved */
222 #define MACB_LB_SIZE		1
223 #define MACB_LLB_OFFSET		1 /* Loop back local */
224 #define MACB_LLB_SIZE		1
225 #define MACB_RE_OFFSET		2 /* Receive enable */
226 #define MACB_RE_SIZE		1
227 #define MACB_TE_OFFSET		3 /* Transmit enable */
228 #define MACB_TE_SIZE		1
229 #define MACB_MPE_OFFSET		4 /* Management port enable */
230 #define MACB_MPE_SIZE		1
231 #define MACB_CLRSTAT_OFFSET	5 /* Clear stats regs */
232 #define MACB_CLRSTAT_SIZE	1
233 #define MACB_INCSTAT_OFFSET	6 /* Incremental stats regs */
234 #define MACB_INCSTAT_SIZE	1
235 #define MACB_WESTAT_OFFSET	7 /* Write enable stats regs */
236 #define MACB_WESTAT_SIZE	1
237 #define MACB_BP_OFFSET		8 /* Back pressure */
238 #define MACB_BP_SIZE		1
239 #define MACB_TSTART_OFFSET	9 /* Start transmission */
240 #define MACB_TSTART_SIZE	1
241 #define MACB_THALT_OFFSET	10 /* Transmit halt */
242 #define MACB_THALT_SIZE		1
243 #define MACB_NCR_TPF_OFFSET	11 /* Transmit pause frame */
244 #define MACB_NCR_TPF_SIZE	1
245 #define MACB_TZQ_OFFSET		12 /* Transmit zero quantum pause frame */
246 #define MACB_TZQ_SIZE		1
247 #define MACB_SRTSM_OFFSET	15 /* Store Receive Timestamp to Memory */
248 #define MACB_OSSMODE_OFFSET	24 /* Enable One Step Synchro Mode */
249 #define MACB_OSSMODE_SIZE	1
250 #define MACB_MIIONRGMII_OFFSET	28 /* MII Usage on RGMII Interface */
251 #define MACB_MIIONRGMII_SIZE	1
252 
253 /* Bitfields in NCFGR */
254 #define MACB_SPD_OFFSET		0 /* Speed */
255 #define MACB_SPD_SIZE		1
256 #define MACB_FD_OFFSET		1 /* Full duplex */
257 #define MACB_FD_SIZE		1
258 #define MACB_BIT_RATE_OFFSET	2 /* Discard non-VLAN frames */
259 #define MACB_BIT_RATE_SIZE	1
260 #define MACB_JFRAME_OFFSET	3 /* reserved */
261 #define MACB_JFRAME_SIZE	1
262 #define MACB_CAF_OFFSET		4 /* Copy all frames */
263 #define MACB_CAF_SIZE		1
264 #define MACB_NBC_OFFSET		5 /* No broadcast */
265 #define MACB_NBC_SIZE		1
266 #define MACB_NCFGR_MTI_OFFSET	6 /* Multicast hash enable */
267 #define MACB_NCFGR_MTI_SIZE	1
268 #define MACB_UNI_OFFSET		7 /* Unicast hash enable */
269 #define MACB_UNI_SIZE		1
270 #define MACB_BIG_OFFSET		8 /* Receive 1536 byte frames */
271 #define MACB_BIG_SIZE		1
272 #define MACB_EAE_OFFSET		9 /* External address match enable */
273 #define MACB_EAE_SIZE		1
274 #define MACB_CLK_OFFSET		10
275 #define MACB_CLK_SIZE		2
276 #define MACB_RTY_OFFSET		12 /* Retry test */
277 #define MACB_RTY_SIZE		1
278 #define MACB_PAE_OFFSET		13 /* Pause enable */
279 #define MACB_PAE_SIZE		1
280 #define MACB_RM9200_RMII_OFFSET	13 /* AT91RM9200 only */
281 #define MACB_RM9200_RMII_SIZE	1  /* AT91RM9200 only */
282 #define MACB_RBOF_OFFSET	14 /* Receive buffer offset */
283 #define MACB_RBOF_SIZE		2
284 #define MACB_RLCE_OFFSET	16 /* Length field error frame discard */
285 #define MACB_RLCE_SIZE		1
286 #define MACB_DRFCS_OFFSET	17 /* FCS remove */
287 #define MACB_DRFCS_SIZE		1
288 #define MACB_EFRHD_OFFSET	18
289 #define MACB_EFRHD_SIZE		1
290 #define MACB_IRXFCS_OFFSET	19
291 #define MACB_IRXFCS_SIZE	1
292 
293 /* GEM specific NCR bitfields. */
294 #define GEM_ENABLE_HS_MAC_OFFSET	31
295 #define GEM_ENABLE_HS_MAC_SIZE		1
296 
297 /* GEM specific NCFGR bitfields. */
298 #define GEM_FD_OFFSET		1 /* Full duplex */
299 #define GEM_FD_SIZE		1
300 #define GEM_GBE_OFFSET		10 /* Gigabit mode enable */
301 #define GEM_GBE_SIZE		1
302 #define GEM_PCSSEL_OFFSET	11
303 #define GEM_PCSSEL_SIZE		1
304 #define GEM_PAE_OFFSET		13 /* Pause enable */
305 #define GEM_PAE_SIZE		1
306 #define GEM_CLK_OFFSET		18 /* MDC clock division */
307 #define GEM_CLK_SIZE		3
308 #define GEM_DBW_OFFSET		21 /* Data bus width */
309 #define GEM_DBW_SIZE		2
310 #define GEM_RXCOEN_OFFSET	24
311 #define GEM_RXCOEN_SIZE		1
312 #define GEM_SGMIIEN_OFFSET	27
313 #define GEM_SGMIIEN_SIZE	1
314 
315 
316 /* Constants for data bus width. */
317 #define GEM_DBW32		0 /* 32 bit AMBA AHB data bus width */
318 #define GEM_DBW64		1 /* 64 bit AMBA AHB data bus width */
319 #define GEM_DBW128		2 /* 128 bit AMBA AHB data bus width */
320 
321 /* Bitfields in DMACFG. */
322 #define GEM_FBLDO_OFFSET	0 /* fixed burst length for DMA */
323 #define GEM_FBLDO_SIZE		5
324 #define GEM_ENDIA_DESC_OFFSET	6 /* endian swap mode for management descriptor access */
325 #define GEM_ENDIA_DESC_SIZE	1
326 #define GEM_ENDIA_PKT_OFFSET	7 /* endian swap mode for packet data access */
327 #define GEM_ENDIA_PKT_SIZE	1
328 #define GEM_RXBMS_OFFSET	8 /* RX packet buffer memory size select */
329 #define GEM_RXBMS_SIZE		2
330 #define GEM_TXPBMS_OFFSET	10 /* TX packet buffer memory size select */
331 #define GEM_TXPBMS_SIZE		1
332 #define GEM_TXCOEN_OFFSET	11 /* TX IP/TCP/UDP checksum gen offload */
333 #define GEM_TXCOEN_SIZE		1
334 #define GEM_RXBS_OFFSET		16 /* DMA receive buffer size */
335 #define GEM_RXBS_SIZE		8
336 #define GEM_DDRP_OFFSET		24 /* disc_when_no_ahb */
337 #define GEM_DDRP_SIZE		1
338 #define GEM_RXEXT_OFFSET	28 /* RX extended Buffer Descriptor mode */
339 #define GEM_RXEXT_SIZE		1
340 #define GEM_TXEXT_OFFSET	29 /* TX extended Buffer Descriptor mode */
341 #define GEM_TXEXT_SIZE		1
342 #define GEM_ADDR64_OFFSET	30 /* Address bus width - 64b or 32b */
343 #define GEM_ADDR64_SIZE		1
344 
345 
346 /* Bitfields in NSR */
347 #define MACB_NSR_LINK_OFFSET	0 /* pcs_link_state */
348 #define MACB_NSR_LINK_SIZE	1
349 #define MACB_MDIO_OFFSET	1 /* status of the mdio_in pin */
350 #define MACB_MDIO_SIZE		1
351 #define MACB_IDLE_OFFSET	2 /* The PHY management logic is idle */
352 #define MACB_IDLE_SIZE		1
353 
354 /* Bitfields in TSR */
355 #define MACB_UBR_OFFSET		0 /* Used bit read */
356 #define MACB_UBR_SIZE		1
357 #define MACB_COL_OFFSET		1 /* Collision occurred */
358 #define MACB_COL_SIZE		1
359 #define MACB_TSR_RLE_OFFSET	2 /* Retry limit exceeded */
360 #define MACB_TSR_RLE_SIZE	1
361 #define MACB_TGO_OFFSET		3 /* Transmit go */
362 #define MACB_TGO_SIZE		1
363 #define MACB_BEX_OFFSET		4 /* TX frame corruption due to AHB error */
364 #define MACB_BEX_SIZE		1
365 #define MACB_RM9200_BNQ_OFFSET	4 /* AT91RM9200 only */
366 #define MACB_RM9200_BNQ_SIZE	1 /* AT91RM9200 only */
367 #define MACB_COMP_OFFSET	5 /* Trnasmit complete */
368 #define MACB_COMP_SIZE		1
369 #define MACB_UND_OFFSET		6 /* Trnasmit under run */
370 #define MACB_UND_SIZE		1
371 
372 /* Bitfields in RSR */
373 #define MACB_BNA_OFFSET		0 /* Buffer not available */
374 #define MACB_BNA_SIZE		1
375 #define MACB_REC_OFFSET		1 /* Frame received */
376 #define MACB_REC_SIZE		1
377 #define MACB_OVR_OFFSET		2 /* Receive overrun */
378 #define MACB_OVR_SIZE		1
379 
380 /* Bitfields in ISR/IER/IDR/IMR */
381 #define MACB_MFD_OFFSET		0 /* Management frame sent */
382 #define MACB_MFD_SIZE		1
383 #define MACB_RCOMP_OFFSET	1 /* Receive complete */
384 #define MACB_RCOMP_SIZE		1
385 #define MACB_RXUBR_OFFSET	2 /* RX used bit read */
386 #define MACB_RXUBR_SIZE		1
387 #define MACB_TXUBR_OFFSET	3 /* TX used bit read */
388 #define MACB_TXUBR_SIZE		1
389 #define MACB_ISR_TUND_OFFSET	4 /* Enable TX buffer under run interrupt */
390 #define MACB_ISR_TUND_SIZE	1
391 #define MACB_ISR_RLE_OFFSET	5 /* EN retry exceeded/late coll interrupt */
392 #define MACB_ISR_RLE_SIZE	1
393 #define MACB_TXERR_OFFSET	6 /* EN TX frame corrupt from error interrupt */
394 #define MACB_TXERR_SIZE		1
395 #define MACB_RM9200_TBRE_OFFSET	6 /* EN may send new frame interrupt (RM9200) */
396 #define MACB_RM9200_TBRE_SIZE	1
397 #define MACB_TCOMP_OFFSET	7 /* Enable transmit complete interrupt */
398 #define MACB_TCOMP_SIZE		1
399 #define MACB_ISR_LINK_OFFSET	9 /* Enable link change interrupt */
400 #define MACB_ISR_LINK_SIZE	1
401 #define MACB_ISR_ROVR_OFFSET	10 /* Enable receive overrun interrupt */
402 #define MACB_ISR_ROVR_SIZE	1
403 #define MACB_HRESP_OFFSET	11 /* Enable hrsep not OK interrupt */
404 #define MACB_HRESP_SIZE		1
405 #define MACB_PFR_OFFSET		12 /* Enable pause frame w/ quantum interrupt */
406 #define MACB_PFR_SIZE		1
407 #define MACB_PTZ_OFFSET		13 /* Enable pause time zero interrupt */
408 #define MACB_PTZ_SIZE		1
409 #define MACB_WOL_OFFSET		14 /* Enable wake-on-lan interrupt */
410 #define MACB_WOL_SIZE		1
411 #define MACB_DRQFR_OFFSET	18 /* PTP Delay Request Frame Received */
412 #define MACB_DRQFR_SIZE		1
413 #define MACB_SFR_OFFSET		19 /* PTP Sync Frame Received */
414 #define MACB_SFR_SIZE		1
415 #define MACB_DRQFT_OFFSET	20 /* PTP Delay Request Frame Transmitted */
416 #define MACB_DRQFT_SIZE		1
417 #define MACB_SFT_OFFSET		21 /* PTP Sync Frame Transmitted */
418 #define MACB_SFT_SIZE		1
419 #define MACB_PDRQFR_OFFSET	22 /* PDelay Request Frame Received */
420 #define MACB_PDRQFR_SIZE	1
421 #define MACB_PDRSFR_OFFSET	23 /* PDelay Response Frame Received */
422 #define MACB_PDRSFR_SIZE	1
423 #define MACB_PDRQFT_OFFSET	24 /* PDelay Request Frame Transmitted */
424 #define MACB_PDRQFT_SIZE	1
425 #define MACB_PDRSFT_OFFSET	25 /* PDelay Response Frame Transmitted */
426 #define MACB_PDRSFT_SIZE	1
427 #define MACB_SRI_OFFSET		26 /* TSU Seconds Register Increment */
428 #define MACB_SRI_SIZE		1
429 #define GEM_WOL_OFFSET		28 /* Enable wake-on-lan interrupt */
430 #define GEM_WOL_SIZE		1
431 
432 /* Timer increment fields */
433 #define MACB_TI_CNS_OFFSET	0
434 #define MACB_TI_CNS_SIZE	8
435 #define MACB_TI_ACNS_OFFSET	8
436 #define MACB_TI_ACNS_SIZE	8
437 #define MACB_TI_NIT_OFFSET	16
438 #define MACB_TI_NIT_SIZE	8
439 
440 /* Bitfields in MAN */
441 #define MACB_DATA_OFFSET	0 /* data */
442 #define MACB_DATA_SIZE		16
443 #define MACB_CODE_OFFSET	16 /* Must be written to 10 */
444 #define MACB_CODE_SIZE		2
445 #define MACB_REGA_OFFSET	18 /* Register address */
446 #define MACB_REGA_SIZE		5
447 #define MACB_PHYA_OFFSET	23 /* PHY address */
448 #define MACB_PHYA_SIZE		5
449 #define MACB_RW_OFFSET		28 /* Operation. 10 is read. 01 is write. */
450 #define MACB_RW_SIZE		2
451 #define MACB_SOF_OFFSET		30 /* Must be written to 1 for Clause 22 */
452 #define MACB_SOF_SIZE		2
453 
454 /* Bitfields in USRIO (AVR32) */
455 #define MACB_MII_OFFSET				0
456 #define MACB_MII_SIZE				1
457 #define MACB_EAM_OFFSET				1
458 #define MACB_EAM_SIZE				1
459 #define MACB_TX_PAUSE_OFFSET			2
460 #define MACB_TX_PAUSE_SIZE			1
461 #define MACB_TX_PAUSE_ZERO_OFFSET		3
462 #define MACB_TX_PAUSE_ZERO_SIZE			1
463 
464 /* Bitfields in USRIO (AT91) */
465 #define MACB_RMII_OFFSET			0
466 #define MACB_RMII_SIZE				1
467 #define GEM_RGMII_OFFSET			0 /* GEM gigabit mode */
468 #define GEM_RGMII_SIZE				1
469 #define MACB_CLKEN_OFFSET			1
470 #define MACB_CLKEN_SIZE				1
471 
472 /* Bitfields in WOL */
473 #define MACB_IP_OFFSET				0
474 #define MACB_IP_SIZE				16
475 #define MACB_MAG_OFFSET				16
476 #define MACB_MAG_SIZE				1
477 #define MACB_ARP_OFFSET				17
478 #define MACB_ARP_SIZE				1
479 #define MACB_SA1_OFFSET				18
480 #define MACB_SA1_SIZE				1
481 #define MACB_WOL_MTI_OFFSET			19
482 #define MACB_WOL_MTI_SIZE			1
483 
484 /* Bitfields in MID */
485 #define MACB_IDNUM_OFFSET			16
486 #define MACB_IDNUM_SIZE				12
487 #define MACB_REV_OFFSET				0
488 #define MACB_REV_SIZE				16
489 
490 /* Bitfield in HS_MAC_CONFIG */
491 #define GEM_HS_MAC_SPEED_OFFSET			0
492 #define GEM_HS_MAC_SPEED_SIZE			3
493 
494 /* Bitfields in PCSCNTRL */
495 #define GEM_PCSAUTONEG_OFFSET			12
496 #define GEM_PCSAUTONEG_SIZE			1
497 
498 /* Bitfields in DCFG1. */
499 #define GEM_IRQCOR_OFFSET			23
500 #define GEM_IRQCOR_SIZE				1
501 #define GEM_DBWDEF_OFFSET			25
502 #define GEM_DBWDEF_SIZE				3
503 #define GEM_NO_PCS_OFFSET			0
504 #define GEM_NO_PCS_SIZE				1
505 
506 /* Bitfields in DCFG2. */
507 #define GEM_RX_PKT_BUFF_OFFSET			20
508 #define GEM_RX_PKT_BUFF_SIZE			1
509 #define GEM_TX_PKT_BUFF_OFFSET			21
510 #define GEM_TX_PKT_BUFF_SIZE			1
511 
512 
513 /* Bitfields in DCFG5. */
514 #define GEM_TSU_OFFSET				8
515 #define GEM_TSU_SIZE				1
516 
517 /* Bitfields in DCFG6. */
518 #define GEM_PBUF_LSO_OFFSET			27
519 #define GEM_PBUF_LSO_SIZE			1
520 #define GEM_DAW64_OFFSET			23
521 #define GEM_DAW64_SIZE				1
522 
523 /* Bitfields in DCFG8. */
524 #define GEM_T1SCR_OFFSET			24
525 #define GEM_T1SCR_SIZE				8
526 #define GEM_T2SCR_OFFSET			16
527 #define GEM_T2SCR_SIZE				8
528 #define GEM_SCR2ETH_OFFSET			8
529 #define GEM_SCR2ETH_SIZE			8
530 #define GEM_SCR2CMP_OFFSET			0
531 #define GEM_SCR2CMP_SIZE			8
532 
533 /* Bitfields in DCFG10 */
534 #define GEM_TXBD_RDBUFF_OFFSET			12
535 #define GEM_TXBD_RDBUFF_SIZE			4
536 #define GEM_RXBD_RDBUFF_OFFSET			8
537 #define GEM_RXBD_RDBUFF_SIZE			4
538 
539 /* Bitfields in DCFG12. */
540 #define GEM_HIGH_SPEED_OFFSET			26
541 #define GEM_HIGH_SPEED_SIZE			1
542 
543 /* Bitfields in USX_CONTROL. */
544 #define GEM_USX_CTRL_SPEED_OFFSET		14
545 #define GEM_USX_CTRL_SPEED_SIZE			3
546 #define GEM_SERDES_RATE_OFFSET			12
547 #define GEM_SERDES_RATE_SIZE			2
548 #define GEM_RX_SCR_BYPASS_OFFSET		9
549 #define GEM_RX_SCR_BYPASS_SIZE			1
550 #define GEM_TX_SCR_BYPASS_OFFSET		8
551 #define GEM_TX_SCR_BYPASS_SIZE			1
552 #define GEM_TX_EN_OFFSET			1
553 #define GEM_TX_EN_SIZE				1
554 #define GEM_SIGNAL_OK_OFFSET			0
555 #define GEM_SIGNAL_OK_SIZE			1
556 
557 /* Bitfields in USX_STATUS. */
558 #define GEM_USX_BLOCK_LOCK_OFFSET		0
559 #define GEM_USX_BLOCK_LOCK_SIZE			1
560 
561 /* Bitfields in TISUBN */
562 #define GEM_SUBNSINCR_OFFSET			0
563 #define GEM_SUBNSINCRL_OFFSET			24
564 #define GEM_SUBNSINCRL_SIZE			8
565 #define GEM_SUBNSINCRH_OFFSET			0
566 #define GEM_SUBNSINCRH_SIZE			16
567 #define GEM_SUBNSINCR_SIZE			24
568 
569 /* Bitfields in TI */
570 #define GEM_NSINCR_OFFSET			0
571 #define GEM_NSINCR_SIZE				8
572 
573 /* Bitfields in TSH */
574 #define GEM_TSH_OFFSET				0 /* TSU timer value (s). MSB [47:32] of seconds timer count */
575 #define GEM_TSH_SIZE				16
576 
577 /* Bitfields in TSL */
578 #define GEM_TSL_OFFSET				0 /* TSU timer value (s). LSB [31:0] of seconds timer count */
579 #define GEM_TSL_SIZE				32
580 
581 /* Bitfields in TN */
582 #define GEM_TN_OFFSET				0 /* TSU timer value (ns) */
583 #define GEM_TN_SIZE					30
584 
585 /* Bitfields in TXBDCTRL */
586 #define GEM_TXTSMODE_OFFSET			4 /* TX Descriptor Timestamp Insertion mode */
587 #define GEM_TXTSMODE_SIZE			2
588 
589 /* Bitfields in RXBDCTRL */
590 #define GEM_RXTSMODE_OFFSET			4 /* RX Descriptor Timestamp Insertion mode */
591 #define GEM_RXTSMODE_SIZE			2
592 
593 /* Bitfields in SCRT2 */
594 #define GEM_QUEUE_OFFSET			0 /* Queue Number */
595 #define GEM_QUEUE_SIZE				4
596 #define GEM_VLANPR_OFFSET			4 /* VLAN Priority */
597 #define GEM_VLANPR_SIZE				3
598 #define GEM_VLANEN_OFFSET			8 /* VLAN Enable */
599 #define GEM_VLANEN_SIZE				1
600 #define GEM_ETHT2IDX_OFFSET			9 /* Index to screener type 2 EtherType register */
601 #define GEM_ETHT2IDX_SIZE			3
602 #define GEM_ETHTEN_OFFSET			12 /* EtherType Enable */
603 #define GEM_ETHTEN_SIZE				1
604 #define GEM_CMPA_OFFSET				13 /* Compare A - Index to screener type 2 Compare register */
605 #define GEM_CMPA_SIZE				5
606 #define GEM_CMPAEN_OFFSET			18 /* Compare A Enable */
607 #define GEM_CMPAEN_SIZE				1
608 #define GEM_CMPB_OFFSET				19 /* Compare B - Index to screener type 2 Compare register */
609 #define GEM_CMPB_SIZE				5
610 #define GEM_CMPBEN_OFFSET			24 /* Compare B Enable */
611 #define GEM_CMPBEN_SIZE				1
612 #define GEM_CMPC_OFFSET				25 /* Compare C - Index to screener type 2 Compare register */
613 #define GEM_CMPC_SIZE				5
614 #define GEM_CMPCEN_OFFSET			30 /* Compare C Enable */
615 #define GEM_CMPCEN_SIZE				1
616 
617 /* Bitfields in ETHT */
618 #define GEM_ETHTCMP_OFFSET			0 /* EtherType compare value */
619 #define GEM_ETHTCMP_SIZE			16
620 
621 /* Bitfields in T2CMPW0 */
622 #define GEM_T2CMP_OFFSET			16 /* 0xFFFF0000 compare value */
623 #define GEM_T2CMP_SIZE				16
624 #define GEM_T2MASK_OFFSET			0 /* 0x0000FFFF compare value or mask */
625 #define GEM_T2MASK_SIZE				16
626 
627 /* Bitfields in T2CMPW1 */
628 #define GEM_T2DISMSK_OFFSET			9 /* disable mask */
629 #define GEM_T2DISMSK_SIZE			1
630 #define GEM_T2CMPOFST_OFFSET			7 /* compare offset */
631 #define GEM_T2CMPOFST_SIZE			2
632 #define GEM_T2OFST_OFFSET			0 /* offset value */
633 #define GEM_T2OFST_SIZE				7
634 
635 /* Offset for screener type 2 compare values (T2CMPOFST).
636  * Note the offset is applied after the specified point,
637  * e.g. GEM_T2COMPOFST_ETYPE denotes the EtherType field, so an offset
638  * of 12 bytes from this would be the source IP address in an IP header
639  */
640 #define GEM_T2COMPOFST_SOF		0
641 #define GEM_T2COMPOFST_ETYPE	1
642 #define GEM_T2COMPOFST_IPHDR	2
643 #define GEM_T2COMPOFST_TCPUDP	3
644 
645 /* offset from EtherType to IP address */
646 #define ETYPE_SRCIP_OFFSET			12
647 #define ETYPE_DSTIP_OFFSET			16
648 
649 /* offset from IP header to port */
650 #define IPHDR_SRCPORT_OFFSET		0
651 #define IPHDR_DSTPORT_OFFSET		2
652 
653 /* Transmit DMA buffer descriptor Word 1 */
654 #define GEM_DMA_TXVALID_OFFSET		23 /* timestamp has been captured in the Buffer Descriptor */
655 #define GEM_DMA_TXVALID_SIZE		1
656 
657 /* Receive DMA buffer descriptor Word 0 */
658 #define GEM_DMA_RXVALID_OFFSET		2 /* indicates a valid timestamp in the Buffer Descriptor */
659 #define GEM_DMA_RXVALID_SIZE		1
660 
661 /* DMA buffer descriptor Word 2 (32 bit addressing) or Word 4 (64 bit addressing) */
662 #define GEM_DMA_SECL_OFFSET			30 /* Timestamp seconds[1:0]  */
663 #define GEM_DMA_SECL_SIZE			2
664 #define GEM_DMA_NSEC_OFFSET			0 /* Timestamp nanosecs [29:0] */
665 #define GEM_DMA_NSEC_SIZE			30
666 
667 /* DMA buffer descriptor Word 3 (32 bit addressing) or Word 5 (64 bit addressing) */
668 
669 /* New hardware supports 12 bit precision of timestamp in DMA buffer descriptor.
670  * Old hardware supports only 6 bit precision but it is enough for PTP.
671  * Less accuracy is used always instead of checking hardware version.
672  */
673 #define GEM_DMA_SECH_OFFSET			0 /* Timestamp seconds[5:2] */
674 #define GEM_DMA_SECH_SIZE			4
675 #define GEM_DMA_SEC_WIDTH			(GEM_DMA_SECH_SIZE + GEM_DMA_SECL_SIZE)
676 #define GEM_DMA_SEC_TOP				(1 << GEM_DMA_SEC_WIDTH)
677 #define GEM_DMA_SEC_MASK			(GEM_DMA_SEC_TOP - 1)
678 
679 /* Bitfields in ADJ */
680 #define GEM_ADDSUB_OFFSET			31
681 #define GEM_ADDSUB_SIZE				1
682 /* Constants for CLK */
683 #define MACB_CLK_DIV8				0
684 #define MACB_CLK_DIV16				1
685 #define MACB_CLK_DIV32				2
686 #define MACB_CLK_DIV64				3
687 
688 /* GEM specific constants for CLK. */
689 #define GEM_CLK_DIV8				0
690 #define GEM_CLK_DIV16				1
691 #define GEM_CLK_DIV32				2
692 #define GEM_CLK_DIV48				3
693 #define GEM_CLK_DIV64				4
694 #define GEM_CLK_DIV96				5
695 
696 /* Constants for MAN register */
697 #define MACB_MAN_C22_SOF			1
698 #define MACB_MAN_C22_WRITE			1
699 #define MACB_MAN_C22_READ			2
700 #define MACB_MAN_C22_CODE			2
701 
702 #define MACB_MAN_C45_SOF			0
703 #define MACB_MAN_C45_ADDR			0
704 #define MACB_MAN_C45_WRITE			1
705 #define MACB_MAN_C45_POST_READ_INCR		2
706 #define MACB_MAN_C45_READ			3
707 #define MACB_MAN_C45_CODE			2
708 
709 /* Capability mask bits */
710 #define MACB_CAPS_ISR_CLEAR_ON_WRITE		0x00000001
711 #define MACB_CAPS_USRIO_HAS_CLKEN		0x00000002
712 #define MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII	0x00000004
713 #define MACB_CAPS_NO_GIGABIT_HALF		0x00000008
714 #define MACB_CAPS_USRIO_DISABLED		0x00000010
715 #define MACB_CAPS_JUMBO				0x00000020
716 #define MACB_CAPS_GEM_HAS_PTP			0x00000040
717 #define MACB_CAPS_BD_RD_PREFETCH		0x00000080
718 #define MACB_CAPS_NEEDS_RSTONUBR		0x00000100
719 #define MACB_CAPS_MIIONRGMII			0x00000200
720 #define MACB_CAPS_NEED_TSUCLK			0x00000400
721 #define MACB_CAPS_PCS				0x01000000
722 #define MACB_CAPS_HIGH_SPEED			0x02000000
723 #define MACB_CAPS_CLK_HW_CHG			0x04000000
724 #define MACB_CAPS_MACB_IS_EMAC			0x08000000
725 #define MACB_CAPS_FIFO_MODE			0x10000000
726 #define MACB_CAPS_GIGABIT_MODE_AVAILABLE	0x20000000
727 #define MACB_CAPS_SG_DISABLED			0x40000000
728 #define MACB_CAPS_MACB_IS_GEM			0x80000000
729 
730 /* LSO settings */
731 #define MACB_LSO_UFO_ENABLE			0x01
732 #define MACB_LSO_TSO_ENABLE			0x02
733 
734 /* Bit manipulation macros */
735 #define MACB_BIT(name)					\
736 	(1 << MACB_##name##_OFFSET)
737 #define MACB_BF(name,value)				\
738 	(((value) & ((1 << MACB_##name##_SIZE) - 1))	\
739 	 << MACB_##name##_OFFSET)
740 #define MACB_BFEXT(name,value)\
741 	(((value) >> MACB_##name##_OFFSET)		\
742 	 & ((1 << MACB_##name##_SIZE) - 1))
743 #define MACB_BFINS(name,value,old)			\
744 	(((old) & ~(((1 << MACB_##name##_SIZE) - 1)	\
745 		    << MACB_##name##_OFFSET))		\
746 	 | MACB_BF(name,value))
747 
748 #define GEM_BIT(name)					\
749 	(1 << GEM_##name##_OFFSET)
750 #define GEM_BF(name, value)				\
751 	(((value) & ((1 << GEM_##name##_SIZE) - 1))	\
752 	 << GEM_##name##_OFFSET)
753 #define GEM_BFEXT(name, value)\
754 	(((value) >> GEM_##name##_OFFSET)		\
755 	 & ((1 << GEM_##name##_SIZE) - 1))
756 #define GEM_BFINS(name, value, old)			\
757 	(((old) & ~(((1 << GEM_##name##_SIZE) - 1)	\
758 		    << GEM_##name##_OFFSET))		\
759 	 | GEM_BF(name, value))
760 
761 /* Register access macros */
762 #define macb_readl(port, reg)		(port)->macb_reg_readl((port), MACB_##reg)
763 #define macb_writel(port, reg, value)	(port)->macb_reg_writel((port), MACB_##reg, (value))
764 #define gem_readl(port, reg)		(port)->macb_reg_readl((port), GEM_##reg)
765 #define gem_writel(port, reg, value)	(port)->macb_reg_writel((port), GEM_##reg, (value))
766 #define queue_readl(queue, reg)		(queue)->bp->macb_reg_readl((queue)->bp, (queue)->reg)
767 #define queue_writel(queue, reg, value)	(queue)->bp->macb_reg_writel((queue)->bp, (queue)->reg, (value))
768 #define gem_readl_n(port, reg, idx)		(port)->macb_reg_readl((port), GEM_##reg + idx * 4)
769 #define gem_writel_n(port, reg, idx, value)	(port)->macb_reg_writel((port), GEM_##reg + idx * 4, (value))
770 
771 #define PTP_TS_BUFFER_SIZE		128 /* must be power of 2 */
772 
773 /* Conditional GEM/MACB macros.  These perform the operation to the correct
774  * register dependent on whether the device is a GEM or a MACB.  For registers
775  * and bitfields that are common across both devices, use macb_{read,write}l
776  * to avoid the cost of the conditional.
777  */
778 #define macb_or_gem_writel(__bp, __reg, __value) \
779 	({ \
780 		if (macb_is_gem((__bp))) \
781 			gem_writel((__bp), __reg, __value); \
782 		else \
783 			macb_writel((__bp), __reg, __value); \
784 	})
785 
786 #define macb_or_gem_readl(__bp, __reg) \
787 	({ \
788 		u32 __v; \
789 		if (macb_is_gem((__bp))) \
790 			__v = gem_readl((__bp), __reg); \
791 		else \
792 			__v = macb_readl((__bp), __reg); \
793 		__v; \
794 	})
795 
796 #define MACB_READ_NSR(bp)	macb_readl(bp, NSR)
797 
798 /* struct macb_dma_desc - Hardware DMA descriptor
799  * @addr: DMA address of data buffer
800  * @ctrl: Control and status bits
801  */
802 struct macb_dma_desc {
803 	u32	addr;
804 	u32	ctrl;
805 };
806 
807 #ifdef MACB_EXT_DESC
808 #define HW_DMA_CAP_32B		0
809 #define HW_DMA_CAP_64B		(1 << 0)
810 #define HW_DMA_CAP_PTP		(1 << 1)
811 #define HW_DMA_CAP_64B_PTP	(HW_DMA_CAP_64B | HW_DMA_CAP_PTP)
812 
813 struct macb_dma_desc_64 {
814 	u32 addrh;
815 	u32 resvd;
816 };
817 
818 struct macb_dma_desc_ptp {
819 	u32	ts_1;
820 	u32	ts_2;
821 };
822 
823 struct gem_tx_ts {
824 	struct sk_buff *skb;
825 	struct macb_dma_desc_ptp desc_ptp;
826 };
827 #endif
828 
829 /* DMA descriptor bitfields */
830 #define MACB_RX_USED_OFFSET			0
831 #define MACB_RX_USED_SIZE			1
832 #define MACB_RX_WRAP_OFFSET			1
833 #define MACB_RX_WRAP_SIZE			1
834 #define MACB_RX_WADDR_OFFSET			2
835 #define MACB_RX_WADDR_SIZE			30
836 
837 #define MACB_RX_FRMLEN_OFFSET			0
838 #define MACB_RX_FRMLEN_SIZE			12
839 #define MACB_RX_OFFSET_OFFSET			12
840 #define MACB_RX_OFFSET_SIZE			2
841 #define MACB_RX_SOF_OFFSET			14
842 #define MACB_RX_SOF_SIZE			1
843 #define MACB_RX_EOF_OFFSET			15
844 #define MACB_RX_EOF_SIZE			1
845 #define MACB_RX_CFI_OFFSET			16
846 #define MACB_RX_CFI_SIZE			1
847 #define MACB_RX_VLAN_PRI_OFFSET			17
848 #define MACB_RX_VLAN_PRI_SIZE			3
849 #define MACB_RX_PRI_TAG_OFFSET			20
850 #define MACB_RX_PRI_TAG_SIZE			1
851 #define MACB_RX_VLAN_TAG_OFFSET			21
852 #define MACB_RX_VLAN_TAG_SIZE			1
853 #define MACB_RX_TYPEID_MATCH_OFFSET		22
854 #define MACB_RX_TYPEID_MATCH_SIZE		1
855 #define MACB_RX_SA4_MATCH_OFFSET		23
856 #define MACB_RX_SA4_MATCH_SIZE			1
857 #define MACB_RX_SA3_MATCH_OFFSET		24
858 #define MACB_RX_SA3_MATCH_SIZE			1
859 #define MACB_RX_SA2_MATCH_OFFSET		25
860 #define MACB_RX_SA2_MATCH_SIZE			1
861 #define MACB_RX_SA1_MATCH_OFFSET		26
862 #define MACB_RX_SA1_MATCH_SIZE			1
863 #define MACB_RX_EXT_MATCH_OFFSET		28
864 #define MACB_RX_EXT_MATCH_SIZE			1
865 #define MACB_RX_UHASH_MATCH_OFFSET		29
866 #define MACB_RX_UHASH_MATCH_SIZE		1
867 #define MACB_RX_MHASH_MATCH_OFFSET		30
868 #define MACB_RX_MHASH_MATCH_SIZE		1
869 #define MACB_RX_BROADCAST_OFFSET		31
870 #define MACB_RX_BROADCAST_SIZE			1
871 
872 #define MACB_RX_FRMLEN_MASK			0xFFF
873 #define MACB_RX_JFRMLEN_MASK			0x3FFF
874 
875 /* RX checksum offload disabled: bit 24 clear in NCFGR */
876 #define GEM_RX_TYPEID_MATCH_OFFSET		22
877 #define GEM_RX_TYPEID_MATCH_SIZE		2
878 
879 /* RX checksum offload enabled: bit 24 set in NCFGR */
880 #define GEM_RX_CSUM_OFFSET			22
881 #define GEM_RX_CSUM_SIZE			2
882 
883 #define MACB_TX_FRMLEN_OFFSET			0
884 #define MACB_TX_FRMLEN_SIZE			11
885 #define MACB_TX_LAST_OFFSET			15
886 #define MACB_TX_LAST_SIZE			1
887 #define MACB_TX_NOCRC_OFFSET			16
888 #define MACB_TX_NOCRC_SIZE			1
889 #define MACB_MSS_MFS_OFFSET			16
890 #define MACB_MSS_MFS_SIZE			14
891 #define MACB_TX_LSO_OFFSET			17
892 #define MACB_TX_LSO_SIZE			2
893 #define MACB_TX_TCP_SEQ_SRC_OFFSET		19
894 #define MACB_TX_TCP_SEQ_SRC_SIZE		1
895 #define MACB_TX_BUF_EXHAUSTED_OFFSET		27
896 #define MACB_TX_BUF_EXHAUSTED_SIZE		1
897 #define MACB_TX_UNDERRUN_OFFSET			28
898 #define MACB_TX_UNDERRUN_SIZE			1
899 #define MACB_TX_ERROR_OFFSET			29
900 #define MACB_TX_ERROR_SIZE			1
901 #define MACB_TX_WRAP_OFFSET			30
902 #define MACB_TX_WRAP_SIZE			1
903 #define MACB_TX_USED_OFFSET			31
904 #define MACB_TX_USED_SIZE			1
905 
906 #define GEM_TX_FRMLEN_OFFSET			0
907 #define GEM_TX_FRMLEN_SIZE			14
908 
909 /* Buffer descriptor constants */
910 #define GEM_RX_CSUM_NONE			0
911 #define GEM_RX_CSUM_IP_ONLY			1
912 #define GEM_RX_CSUM_IP_TCP			2
913 #define GEM_RX_CSUM_IP_UDP			3
914 
915 /* limit RX checksum offload to TCP and UDP packets */
916 #define GEM_RX_CSUM_CHECKED_MASK		2
917 
918 /* Scaled PPM fraction */
919 #define PPM_FRACTION	16
920 
921 /* struct macb_tx_skb - data about an skb which is being transmitted
922  * @skb: skb currently being transmitted, only set for the last buffer
923  *       of the frame
924  * @mapping: DMA address of the skb's fragment buffer
925  * @size: size of the DMA mapped buffer
926  * @mapped_as_page: true when buffer was mapped with skb_frag_dma_map(),
927  *                  false when buffer was mapped with dma_map_single()
928  */
929 struct macb_tx_skb {
930 	struct sk_buff		*skb;
931 	dma_addr_t		mapping;
932 	size_t			size;
933 	bool			mapped_as_page;
934 };
935 
936 /* Hardware-collected statistics. Used when updating the network
937  * device stats by a periodic timer.
938  */
939 struct macb_stats {
940 	u32	rx_pause_frames;
941 	u32	tx_ok;
942 	u32	tx_single_cols;
943 	u32	tx_multiple_cols;
944 	u32	rx_ok;
945 	u32	rx_fcs_errors;
946 	u32	rx_align_errors;
947 	u32	tx_deferred;
948 	u32	tx_late_cols;
949 	u32	tx_excessive_cols;
950 	u32	tx_underruns;
951 	u32	tx_carrier_errors;
952 	u32	rx_resource_errors;
953 	u32	rx_overruns;
954 	u32	rx_symbol_errors;
955 	u32	rx_oversize_pkts;
956 	u32	rx_jabbers;
957 	u32	rx_undersize_pkts;
958 	u32	sqe_test_errors;
959 	u32	rx_length_mismatch;
960 	u32	tx_pause_frames;
961 };
962 
963 struct gem_stats {
964 	u32	tx_octets_31_0;
965 	u32	tx_octets_47_32;
966 	u32	tx_frames;
967 	u32	tx_broadcast_frames;
968 	u32	tx_multicast_frames;
969 	u32	tx_pause_frames;
970 	u32	tx_64_byte_frames;
971 	u32	tx_65_127_byte_frames;
972 	u32	tx_128_255_byte_frames;
973 	u32	tx_256_511_byte_frames;
974 	u32	tx_512_1023_byte_frames;
975 	u32	tx_1024_1518_byte_frames;
976 	u32	tx_greater_than_1518_byte_frames;
977 	u32	tx_underrun;
978 	u32	tx_single_collision_frames;
979 	u32	tx_multiple_collision_frames;
980 	u32	tx_excessive_collisions;
981 	u32	tx_late_collisions;
982 	u32	tx_deferred_frames;
983 	u32	tx_carrier_sense_errors;
984 	u32	rx_octets_31_0;
985 	u32	rx_octets_47_32;
986 	u32	rx_frames;
987 	u32	rx_broadcast_frames;
988 	u32	rx_multicast_frames;
989 	u32	rx_pause_frames;
990 	u32	rx_64_byte_frames;
991 	u32	rx_65_127_byte_frames;
992 	u32	rx_128_255_byte_frames;
993 	u32	rx_256_511_byte_frames;
994 	u32	rx_512_1023_byte_frames;
995 	u32	rx_1024_1518_byte_frames;
996 	u32	rx_greater_than_1518_byte_frames;
997 	u32	rx_undersized_frames;
998 	u32	rx_oversize_frames;
999 	u32	rx_jabbers;
1000 	u32	rx_frame_check_sequence_errors;
1001 	u32	rx_length_field_frame_errors;
1002 	u32	rx_symbol_errors;
1003 	u32	rx_alignment_errors;
1004 	u32	rx_resource_errors;
1005 	u32	rx_overruns;
1006 	u32	rx_ip_header_checksum_errors;
1007 	u32	rx_tcp_checksum_errors;
1008 	u32	rx_udp_checksum_errors;
1009 };
1010 
1011 /* Describes the name and offset of an individual statistic register, as
1012  * returned by `ethtool -S`. Also describes which net_device_stats statistics
1013  * this register should contribute to.
1014  */
1015 struct gem_statistic {
1016 	char stat_string[ETH_GSTRING_LEN];
1017 	int offset;
1018 	u32 stat_bits;
1019 };
1020 
1021 /* Bitfield defs for net_device_stat statistics */
1022 #define GEM_NDS_RXERR_OFFSET		0
1023 #define GEM_NDS_RXLENERR_OFFSET		1
1024 #define GEM_NDS_RXOVERERR_OFFSET	2
1025 #define GEM_NDS_RXCRCERR_OFFSET		3
1026 #define GEM_NDS_RXFRAMEERR_OFFSET	4
1027 #define GEM_NDS_RXFIFOERR_OFFSET	5
1028 #define GEM_NDS_TXERR_OFFSET		6
1029 #define GEM_NDS_TXABORTEDERR_OFFSET	7
1030 #define GEM_NDS_TXCARRIERERR_OFFSET	8
1031 #define GEM_NDS_TXFIFOERR_OFFSET	9
1032 #define GEM_NDS_COLLISIONS_OFFSET	10
1033 
1034 #define GEM_STAT_TITLE(name, title) GEM_STAT_TITLE_BITS(name, title, 0)
1035 #define GEM_STAT_TITLE_BITS(name, title, bits) {	\
1036 	.stat_string = title,				\
1037 	.offset = GEM_##name,				\
1038 	.stat_bits = bits				\
1039 }
1040 
1041 /* list of gem statistic registers. The names MUST match the
1042  * corresponding GEM_* definitions.
1043  */
1044 static const struct gem_statistic gem_statistics[] = {
1045 	GEM_STAT_TITLE(OCTTXL, "tx_octets"), /* OCTTXH combined with OCTTXL */
1046 	GEM_STAT_TITLE(TXCNT, "tx_frames"),
1047 	GEM_STAT_TITLE(TXBCCNT, "tx_broadcast_frames"),
1048 	GEM_STAT_TITLE(TXMCCNT, "tx_multicast_frames"),
1049 	GEM_STAT_TITLE(TXPAUSECNT, "tx_pause_frames"),
1050 	GEM_STAT_TITLE(TX64CNT, "tx_64_byte_frames"),
1051 	GEM_STAT_TITLE(TX65CNT, "tx_65_127_byte_frames"),
1052 	GEM_STAT_TITLE(TX128CNT, "tx_128_255_byte_frames"),
1053 	GEM_STAT_TITLE(TX256CNT, "tx_256_511_byte_frames"),
1054 	GEM_STAT_TITLE(TX512CNT, "tx_512_1023_byte_frames"),
1055 	GEM_STAT_TITLE(TX1024CNT, "tx_1024_1518_byte_frames"),
1056 	GEM_STAT_TITLE(TX1519CNT, "tx_greater_than_1518_byte_frames"),
1057 	GEM_STAT_TITLE_BITS(TXURUNCNT, "tx_underrun",
1058 			    GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_TXFIFOERR)),
1059 	GEM_STAT_TITLE_BITS(SNGLCOLLCNT, "tx_single_collision_frames",
1060 			    GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
1061 	GEM_STAT_TITLE_BITS(MULTICOLLCNT, "tx_multiple_collision_frames",
1062 			    GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
1063 	GEM_STAT_TITLE_BITS(EXCESSCOLLCNT, "tx_excessive_collisions",
1064 			    GEM_BIT(NDS_TXERR)|
1065 			    GEM_BIT(NDS_TXABORTEDERR)|
1066 			    GEM_BIT(NDS_COLLISIONS)),
1067 	GEM_STAT_TITLE_BITS(LATECOLLCNT, "tx_late_collisions",
1068 			    GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
1069 	GEM_STAT_TITLE(TXDEFERCNT, "tx_deferred_frames"),
1070 	GEM_STAT_TITLE_BITS(TXCSENSECNT, "tx_carrier_sense_errors",
1071 			    GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
1072 	GEM_STAT_TITLE(OCTRXL, "rx_octets"), /* OCTRXH combined with OCTRXL */
1073 	GEM_STAT_TITLE(RXCNT, "rx_frames"),
1074 	GEM_STAT_TITLE(RXBROADCNT, "rx_broadcast_frames"),
1075 	GEM_STAT_TITLE(RXMULTICNT, "rx_multicast_frames"),
1076 	GEM_STAT_TITLE(RXPAUSECNT, "rx_pause_frames"),
1077 	GEM_STAT_TITLE(RX64CNT, "rx_64_byte_frames"),
1078 	GEM_STAT_TITLE(RX65CNT, "rx_65_127_byte_frames"),
1079 	GEM_STAT_TITLE(RX128CNT, "rx_128_255_byte_frames"),
1080 	GEM_STAT_TITLE(RX256CNT, "rx_256_511_byte_frames"),
1081 	GEM_STAT_TITLE(RX512CNT, "rx_512_1023_byte_frames"),
1082 	GEM_STAT_TITLE(RX1024CNT, "rx_1024_1518_byte_frames"),
1083 	GEM_STAT_TITLE(RX1519CNT, "rx_greater_than_1518_byte_frames"),
1084 	GEM_STAT_TITLE_BITS(RXUNDRCNT, "rx_undersized_frames",
1085 			    GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
1086 	GEM_STAT_TITLE_BITS(RXOVRCNT, "rx_oversize_frames",
1087 			    GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
1088 	GEM_STAT_TITLE_BITS(RXJABCNT, "rx_jabbers",
1089 			    GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
1090 	GEM_STAT_TITLE_BITS(RXFCSCNT, "rx_frame_check_sequence_errors",
1091 			    GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXCRCERR)),
1092 	GEM_STAT_TITLE_BITS(RXLENGTHCNT, "rx_length_field_frame_errors",
1093 			    GEM_BIT(NDS_RXERR)),
1094 	GEM_STAT_TITLE_BITS(RXSYMBCNT, "rx_symbol_errors",
1095 			    GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFRAMEERR)),
1096 	GEM_STAT_TITLE_BITS(RXALIGNCNT, "rx_alignment_errors",
1097 			    GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)),
1098 	GEM_STAT_TITLE_BITS(RXRESERRCNT, "rx_resource_errors",
1099 			    GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)),
1100 	GEM_STAT_TITLE_BITS(RXORCNT, "rx_overruns",
1101 			    GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFIFOERR)),
1102 	GEM_STAT_TITLE_BITS(RXIPCCNT, "rx_ip_header_checksum_errors",
1103 			    GEM_BIT(NDS_RXERR)),
1104 	GEM_STAT_TITLE_BITS(RXTCPCCNT, "rx_tcp_checksum_errors",
1105 			    GEM_BIT(NDS_RXERR)),
1106 	GEM_STAT_TITLE_BITS(RXUDPCCNT, "rx_udp_checksum_errors",
1107 			    GEM_BIT(NDS_RXERR)),
1108 };
1109 
1110 #define GEM_STATS_LEN ARRAY_SIZE(gem_statistics)
1111 
1112 #define QUEUE_STAT_TITLE(title) {	\
1113 	.stat_string = title,			\
1114 }
1115 
1116 /* per queue statistics, each should be unsigned long type */
1117 struct queue_stats {
1118 	union {
1119 		unsigned long first;
1120 		unsigned long rx_packets;
1121 	};
1122 	unsigned long rx_bytes;
1123 	unsigned long rx_dropped;
1124 	unsigned long tx_packets;
1125 	unsigned long tx_bytes;
1126 	unsigned long tx_dropped;
1127 };
1128 
1129 static const struct gem_statistic queue_statistics[] = {
1130 		QUEUE_STAT_TITLE("rx_packets"),
1131 		QUEUE_STAT_TITLE("rx_bytes"),
1132 		QUEUE_STAT_TITLE("rx_dropped"),
1133 		QUEUE_STAT_TITLE("tx_packets"),
1134 		QUEUE_STAT_TITLE("tx_bytes"),
1135 		QUEUE_STAT_TITLE("tx_dropped"),
1136 };
1137 
1138 #define QUEUE_STATS_LEN ARRAY_SIZE(queue_statistics)
1139 
1140 struct macb;
1141 struct macb_queue;
1142 
1143 struct macb_or_gem_ops {
1144 	int	(*mog_alloc_rx_buffers)(struct macb *bp);
1145 	void	(*mog_free_rx_buffers)(struct macb *bp);
1146 	void	(*mog_init_rings)(struct macb *bp);
1147 	int	(*mog_rx)(struct macb_queue *queue, struct napi_struct *napi,
1148 			  int budget);
1149 };
1150 
1151 /* MACB-PTP interface: adapt to platform needs. */
1152 struct macb_ptp_info {
1153 	void (*ptp_init)(struct net_device *ndev);
1154 	void (*ptp_remove)(struct net_device *ndev);
1155 	s32 (*get_ptp_max_adj)(void);
1156 	unsigned int (*get_tsu_rate)(struct macb *bp);
1157 	int (*get_ts_info)(struct net_device *dev,
1158 			   struct ethtool_ts_info *info);
1159 	int (*get_hwtst)(struct net_device *netdev,
1160 			 struct ifreq *ifr);
1161 	int (*set_hwtst)(struct net_device *netdev,
1162 			 struct ifreq *ifr, int cmd);
1163 };
1164 
1165 struct macb_pm_data {
1166 	u32 scrt2;
1167 	u32 usrio;
1168 };
1169 
1170 struct macb_usrio_config {
1171 	u32 mii;
1172 	u32 rmii;
1173 	u32 rgmii;
1174 	u32 refclk;
1175 	u32 hdfctlen;
1176 };
1177 
1178 struct macb_config {
1179 	u32			caps;
1180 	unsigned int		dma_burst_length;
1181 	int	(*clk_init)(struct platform_device *pdev, struct clk **pclk,
1182 			    struct clk **hclk, struct clk **tx_clk,
1183 			    struct clk **rx_clk, struct clk **tsu_clk);
1184 	int	(*init)(struct platform_device *pdev);
1185 	int	jumbo_max_len;
1186 	const struct macb_usrio_config *usrio;
1187 };
1188 
1189 struct tsu_incr {
1190 	u32 sub_ns;
1191 	u32 ns;
1192 };
1193 
1194 struct macb_queue {
1195 	struct macb		*bp;
1196 	int			irq;
1197 
1198 	unsigned int		ISR;
1199 	unsigned int		IER;
1200 	unsigned int		IDR;
1201 	unsigned int		IMR;
1202 	unsigned int		TBQP;
1203 	unsigned int		TBQPH;
1204 	unsigned int		RBQS;
1205 	unsigned int		RBQP;
1206 	unsigned int		RBQPH;
1207 
1208 	/* Lock to protect tx_head and tx_tail */
1209 	spinlock_t		tx_ptr_lock;
1210 	unsigned int		tx_head, tx_tail;
1211 	struct macb_dma_desc	*tx_ring;
1212 	struct macb_tx_skb	*tx_skb;
1213 	dma_addr_t		tx_ring_dma;
1214 	struct work_struct	tx_error_task;
1215 	bool			txubr_pending;
1216 	struct napi_struct	napi_tx;
1217 
1218 	dma_addr_t		rx_ring_dma;
1219 	dma_addr_t		rx_buffers_dma;
1220 	unsigned int		rx_tail;
1221 	unsigned int		rx_prepared_head;
1222 	struct macb_dma_desc	*rx_ring;
1223 	struct sk_buff		**rx_skbuff;
1224 	void			*rx_buffers;
1225 	struct napi_struct	napi_rx;
1226 	struct queue_stats stats;
1227 
1228 #ifdef CONFIG_MACB_USE_HWSTAMP
1229 	struct work_struct	tx_ts_task;
1230 	unsigned int		tx_ts_head, tx_ts_tail;
1231 	struct gem_tx_ts	tx_timestamps[PTP_TS_BUFFER_SIZE];
1232 #endif
1233 };
1234 
1235 struct ethtool_rx_fs_item {
1236 	struct ethtool_rx_flow_spec fs;
1237 	struct list_head list;
1238 };
1239 
1240 struct ethtool_rx_fs_list {
1241 	struct list_head list;
1242 	unsigned int count;
1243 };
1244 
1245 struct macb {
1246 	void __iomem		*regs;
1247 	bool			native_io;
1248 
1249 	/* hardware IO accessors */
1250 	u32	(*macb_reg_readl)(struct macb *bp, int offset);
1251 	void	(*macb_reg_writel)(struct macb *bp, int offset, u32 value);
1252 
1253 	size_t			rx_buffer_size;
1254 
1255 	unsigned int		rx_ring_size;
1256 	unsigned int		tx_ring_size;
1257 
1258 	unsigned int		num_queues;
1259 	unsigned int		queue_mask;
1260 	struct macb_queue	queues[MACB_MAX_QUEUES];
1261 
1262 	spinlock_t		lock;
1263 	struct platform_device	*pdev;
1264 	struct clk		*pclk;
1265 	struct clk		*hclk;
1266 	struct clk		*tx_clk;
1267 	struct clk		*rx_clk;
1268 	struct clk		*tsu_clk;
1269 	struct net_device	*dev;
1270 	union {
1271 		struct macb_stats	macb;
1272 		struct gem_stats	gem;
1273 	}			hw_stats;
1274 
1275 	struct macb_or_gem_ops	macbgem_ops;
1276 
1277 	struct mii_bus		*mii_bus;
1278 	struct phylink		*phylink;
1279 	struct phylink_config	phylink_config;
1280 	struct phylink_pcs	phylink_usx_pcs;
1281 	struct phylink_pcs	phylink_sgmii_pcs;
1282 
1283 	u32			caps;
1284 	unsigned int		dma_burst_length;
1285 
1286 	phy_interface_t		phy_interface;
1287 
1288 	/* AT91RM9200 transmit queue (1 on wire + 1 queued) */
1289 	struct macb_tx_skb	rm9200_txq[2];
1290 	unsigned int		max_tx_length;
1291 
1292 	u64			ethtool_stats[GEM_STATS_LEN + QUEUE_STATS_LEN * MACB_MAX_QUEUES];
1293 
1294 	unsigned int		rx_frm_len_mask;
1295 	unsigned int		jumbo_max_len;
1296 
1297 	u32			wol;
1298 
1299 	struct macb_ptp_info	*ptp_info;	/* macb-ptp interface */
1300 
1301 	struct phy		*sgmii_phy;	/* for ZynqMP SGMII mode */
1302 
1303 #ifdef MACB_EXT_DESC
1304 	uint8_t hw_dma_cap;
1305 #endif
1306 	spinlock_t tsu_clk_lock; /* gem tsu clock locking */
1307 	unsigned int tsu_rate;
1308 	struct ptp_clock *ptp_clock;
1309 	struct ptp_clock_info ptp_clock_info;
1310 	struct tsu_incr tsu_incr;
1311 	struct hwtstamp_config tstamp_config;
1312 
1313 	/* RX queue filer rule set*/
1314 	struct ethtool_rx_fs_list rx_fs_list;
1315 	spinlock_t rx_fs_lock;
1316 	unsigned int max_tuples;
1317 
1318 	struct tasklet_struct	hresp_err_tasklet;
1319 
1320 	int	rx_bd_rd_prefetch;
1321 	int	tx_bd_rd_prefetch;
1322 
1323 	u32	rx_intr_mask;
1324 
1325 	struct macb_pm_data pm_data;
1326 	const struct macb_usrio_config *usrio;
1327 };
1328 
1329 #ifdef CONFIG_MACB_USE_HWSTAMP
1330 #define GEM_TSEC_SIZE  (GEM_TSH_SIZE + GEM_TSL_SIZE)
1331 #define TSU_SEC_MAX_VAL (((u64)1 << GEM_TSEC_SIZE) - 1)
1332 #define TSU_NSEC_MAX_VAL ((1 << GEM_TN_SIZE) - 1)
1333 
1334 enum macb_bd_control {
1335 	TSTAMP_DISABLED,
1336 	TSTAMP_FRAME_PTP_EVENT_ONLY,
1337 	TSTAMP_ALL_PTP_FRAMES,
1338 	TSTAMP_ALL_FRAMES,
1339 };
1340 
1341 void gem_ptp_init(struct net_device *ndev);
1342 void gem_ptp_remove(struct net_device *ndev);
1343 int gem_ptp_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *des);
1344 void gem_ptp_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc);
gem_ptp_do_txstamp(struct macb_queue * queue,struct sk_buff * skb,struct macb_dma_desc * desc)1345 static inline int gem_ptp_do_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *desc)
1346 {
1347 	if (queue->bp->tstamp_config.tx_type == TSTAMP_DISABLED)
1348 		return -ENOTSUPP;
1349 
1350 	return gem_ptp_txstamp(queue, skb, desc);
1351 }
1352 
gem_ptp_do_rxstamp(struct macb * bp,struct sk_buff * skb,struct macb_dma_desc * desc)1353 static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc)
1354 {
1355 	if (bp->tstamp_config.rx_filter == TSTAMP_DISABLED)
1356 		return;
1357 
1358 	gem_ptp_rxstamp(bp, skb, desc);
1359 }
1360 int gem_get_hwtst(struct net_device *dev, struct ifreq *rq);
1361 int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd);
1362 #else
gem_ptp_init(struct net_device * ndev)1363 static inline void gem_ptp_init(struct net_device *ndev) { }
gem_ptp_remove(struct net_device * ndev)1364 static inline void gem_ptp_remove(struct net_device *ndev) { }
1365 
gem_ptp_do_txstamp(struct macb_queue * queue,struct sk_buff * skb,struct macb_dma_desc * desc)1366 static inline int gem_ptp_do_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *desc)
1367 {
1368 	return -1;
1369 }
1370 
gem_ptp_do_rxstamp(struct macb * bp,struct sk_buff * skb,struct macb_dma_desc * desc)1371 static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc) { }
1372 #endif
1373 
macb_is_gem(struct macb * bp)1374 static inline bool macb_is_gem(struct macb *bp)
1375 {
1376 	return !!(bp->caps & MACB_CAPS_MACB_IS_GEM);
1377 }
1378 
gem_has_ptp(struct macb * bp)1379 static inline bool gem_has_ptp(struct macb *bp)
1380 {
1381 	return !!(bp->caps & MACB_CAPS_GEM_HAS_PTP);
1382 }
1383 
1384 /**
1385  * struct macb_platform_data - platform data for MACB Ethernet used for PCI registration
1386  * @pclk:		platform clock
1387  * @hclk:		AHB clock
1388  */
1389 struct macb_platform_data {
1390 	struct clk	*pclk;
1391 	struct clk	*hclk;
1392 };
1393 
1394 #endif /* _MACB_H */
1395