2 * Atmel MACB Ethernet Controller driver
4 * Copyright (C) 2004-2006 Atmel Corporation
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
13 #include <linux/phy.h>
14 #include <linux/ptp_clock_kernel.h>
15 #include <linux/net_tstamp.h>
16 #include <linux/interrupt.h>
18 #if defined(CONFIG_ARCH_DMA_ADDR_T_64BIT) || defined(CONFIG_MACB_USE_HWSTAMP)
22 #define MACB_GREGS_NBR 16
23 #define MACB_GREGS_VERSION 2
24 #define MACB_MAX_QUEUES 8
26 /* MACB register offsets */
27 #define MACB_NCR 0x0000 /* Network Control */
28 #define MACB_NCFGR 0x0004 /* Network Config */
29 #define MACB_NSR 0x0008 /* Network Status */
30 #define MACB_TAR 0x000c /* AT91RM9200 only */
31 #define MACB_TCR 0x0010 /* AT91RM9200 only */
32 #define MACB_TSR 0x0014 /* Transmit Status */
33 #define MACB_RBQP 0x0018 /* RX Q Base Address */
34 #define MACB_TBQP 0x001c /* TX Q Base Address */
35 #define MACB_RSR 0x0020 /* Receive Status */
36 #define MACB_ISR 0x0024 /* Interrupt Status */
37 #define MACB_IER 0x0028 /* Interrupt Enable */
38 #define MACB_IDR 0x002c /* Interrupt Disable */
39 #define MACB_IMR 0x0030 /* Interrupt Mask */
40 #define MACB_MAN 0x0034 /* PHY Maintenance */
41 #define MACB_PTR 0x0038
42 #define MACB_PFR 0x003c
43 #define MACB_FTO 0x0040
44 #define MACB_SCF 0x0044
45 #define MACB_MCF 0x0048
46 #define MACB_FRO 0x004c
47 #define MACB_FCSE 0x0050
48 #define MACB_ALE 0x0054
49 #define MACB_DTF 0x0058
50 #define MACB_LCOL 0x005c
51 #define MACB_EXCOL 0x0060
52 #define MACB_TUND 0x0064
53 #define MACB_CSE 0x0068
54 #define MACB_RRE 0x006c
55 #define MACB_ROVR 0x0070
56 #define MACB_RSE 0x0074
57 #define MACB_ELE 0x0078
58 #define MACB_RJA 0x007c
59 #define MACB_USF 0x0080
60 #define MACB_STE 0x0084
61 #define MACB_RLE 0x0088
62 #define MACB_TPF 0x008c
63 #define MACB_HRB 0x0090
64 #define MACB_HRT 0x0094
65 #define MACB_SA1B 0x0098
66 #define MACB_SA1T 0x009c
67 #define MACB_SA2B 0x00a0
68 #define MACB_SA2T 0x00a4
69 #define MACB_SA3B 0x00a8
70 #define MACB_SA3T 0x00ac
71 #define MACB_SA4B 0x00b0
72 #define MACB_SA4T 0x00b4
73 #define MACB_TID 0x00b8
74 #define MACB_TPQ 0x00bc
75 #define MACB_USRIO 0x00c0
76 #define MACB_WOL 0x00c4
77 #define MACB_MID 0x00fc
78 #define MACB_TBQPH 0x04C8
79 #define MACB_RBQPH 0x04D4
81 /* GEM register offsets. */
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_HRB 0x0080 /* Hash Bottom */
87 #define GEM_HRT 0x0084 /* Hash Top */
88 #define GEM_SA1B 0x0088 /* Specific1 Bottom */
89 #define GEM_SA1T 0x008C /* Specific1 Top */
90 #define GEM_SA2B 0x0090 /* Specific2 Bottom */
91 #define GEM_SA2T 0x0094 /* Specific2 Top */
92 #define GEM_SA3B 0x0098 /* Specific3 Bottom */
93 #define GEM_SA3T 0x009C /* Specific3 Top */
94 #define GEM_SA4B 0x00A0 /* Specific4 Bottom */
95 #define GEM_SA4T 0x00A4 /* Specific4 Top */
96 #define GEM_EFTSH 0x00e8 /* PTP Event Frame Transmitted Seconds Register 47:32 */
97 #define GEM_EFRSH 0x00ec /* PTP Event Frame Received Seconds Register 47:32 */
98 #define GEM_PEFTSH 0x00f0 /* PTP Peer Event Frame Transmitted Seconds Register 47:32 */
99 #define GEM_PEFRSH 0x00f4 /* PTP Peer Event Frame Received Seconds Register 47:32 */
100 #define GEM_OTX 0x0100 /* Octets transmitted */
101 #define GEM_OCTTXL 0x0100 /* Octets transmitted [31:0] */
102 #define GEM_OCTTXH 0x0104 /* Octets transmitted [47:32] */
103 #define GEM_TXCNT 0x0108 /* Frames Transmitted counter */
104 #define GEM_TXBCCNT 0x010c /* Broadcast Frames counter */
105 #define GEM_TXMCCNT 0x0110 /* Multicast Frames counter */
106 #define GEM_TXPAUSECNT 0x0114 /* Pause Frames Transmitted Counter */
107 #define GEM_TX64CNT 0x0118 /* 64 byte Frames TX counter */
108 #define GEM_TX65CNT 0x011c /* 65-127 byte Frames TX counter */
109 #define GEM_TX128CNT 0x0120 /* 128-255 byte Frames TX counter */
110 #define GEM_TX256CNT 0x0124 /* 256-511 byte Frames TX counter */
111 #define GEM_TX512CNT 0x0128 /* 512-1023 byte Frames TX counter */
112 #define GEM_TX1024CNT 0x012c /* 1024-1518 byte Frames TX counter */
113 #define GEM_TX1519CNT 0x0130 /* 1519+ byte Frames TX counter */
114 #define GEM_TXURUNCNT 0x0134 /* TX under run error counter */
115 #define GEM_SNGLCOLLCNT 0x0138 /* Single Collision Frame Counter */
116 #define GEM_MULTICOLLCNT 0x013c /* Multiple Collision Frame Counter */
117 #define GEM_EXCESSCOLLCNT 0x0140 /* Excessive Collision Frame Counter */
118 #define GEM_LATECOLLCNT 0x0144 /* Late Collision Frame Counter */
119 #define GEM_TXDEFERCNT 0x0148 /* Deferred Transmission Frame Counter */
120 #define GEM_TXCSENSECNT 0x014c /* Carrier Sense Error Counter */
121 #define GEM_ORX 0x0150 /* Octets received */
122 #define GEM_OCTRXL 0x0150 /* Octets received [31:0] */
123 #define GEM_OCTRXH 0x0154 /* Octets received [47:32] */
124 #define GEM_RXCNT 0x0158 /* Frames Received Counter */
125 #define GEM_RXBROADCNT 0x015c /* Broadcast Frames Received Counter */
126 #define GEM_RXMULTICNT 0x0160 /* Multicast Frames Received Counter */
127 #define GEM_RXPAUSECNT 0x0164 /* Pause Frames Received Counter */
128 #define GEM_RX64CNT 0x0168 /* 64 byte Frames RX Counter */
129 #define GEM_RX65CNT 0x016c /* 65-127 byte Frames RX Counter */
130 #define GEM_RX128CNT 0x0170 /* 128-255 byte Frames RX Counter */
131 #define GEM_RX256CNT 0x0174 /* 256-511 byte Frames RX Counter */
132 #define GEM_RX512CNT 0x0178 /* 512-1023 byte Frames RX Counter */
133 #define GEM_RX1024CNT 0x017c /* 1024-1518 byte Frames RX Counter */
134 #define GEM_RX1519CNT 0x0180 /* 1519+ byte Frames RX Counter */
135 #define GEM_RXUNDRCNT 0x0184 /* Undersize Frames Received Counter */
136 #define GEM_RXOVRCNT 0x0188 /* Oversize Frames Received Counter */
137 #define GEM_RXJABCNT 0x018c /* Jabbers Received Counter */
138 #define GEM_RXFCSCNT 0x0190 /* Frame Check Sequence Error Counter */
139 #define GEM_RXLENGTHCNT 0x0194 /* Length Field Error Counter */
140 #define GEM_RXSYMBCNT 0x0198 /* Symbol Error Counter */
141 #define GEM_RXALIGNCNT 0x019c /* Alignment Error Counter */
142 #define GEM_RXRESERRCNT 0x01a0 /* Receive Resource Error Counter */
143 #define GEM_RXORCNT 0x01a4 /* Receive Overrun Counter */
144 #define GEM_RXIPCCNT 0x01a8 /* IP header Checksum Error Counter */
145 #define GEM_RXTCPCCNT 0x01ac /* TCP Checksum Error Counter */
146 #define GEM_RXUDPCCNT 0x01b0 /* UDP Checksum Error Counter */
147 #define GEM_TISUBN 0x01bc /* 1588 Timer Increment Sub-ns */
148 #define GEM_TSH 0x01c0 /* 1588 Timer Seconds High */
149 #define GEM_TSL 0x01d0 /* 1588 Timer Seconds Low */
150 #define GEM_TN 0x01d4 /* 1588 Timer Nanoseconds */
151 #define GEM_TA 0x01d8 /* 1588 Timer Adjust */
152 #define GEM_TI 0x01dc /* 1588 Timer Increment */
153 #define GEM_EFTSL 0x01e0 /* PTP Event Frame Tx Seconds Low */
154 #define GEM_EFTN 0x01e4 /* PTP Event Frame Tx Nanoseconds */
155 #define GEM_EFRSL 0x01e8 /* PTP Event Frame Rx Seconds Low */
156 #define GEM_EFRN 0x01ec /* PTP Event Frame Rx Nanoseconds */
157 #define GEM_PEFTSL 0x01f0 /* PTP Peer Event Frame Tx Secs Low */
158 #define GEM_PEFTN 0x01f4 /* PTP Peer Event Frame Tx Ns */
159 #define GEM_PEFRSL 0x01f8 /* PTP Peer Event Frame Rx Sec Low */
160 #define GEM_PEFRN 0x01fc /* PTP Peer Event Frame Rx Ns */
161 #define GEM_PCSCNTRL 0x0200 /* PCS Control */
162 #define GEM_DCFG1 0x0280 /* Design Config 1 */
163 #define GEM_DCFG2 0x0284 /* Design Config 2 */
164 #define GEM_DCFG3 0x0288 /* Design Config 3 */
165 #define GEM_DCFG4 0x028c /* Design Config 4 */
166 #define GEM_DCFG5 0x0290 /* Design Config 5 */
167 #define GEM_DCFG6 0x0294 /* Design Config 6 */
168 #define GEM_DCFG7 0x0298 /* Design Config 7 */
170 #define GEM_TXBDCTRL 0x04cc /* TX Buffer Descriptor control register */
171 #define GEM_RXBDCTRL 0x04d0 /* RX Buffer Descriptor control register */
173 #define GEM_ISR(hw_q) (0x0400 + ((hw_q) << 2))
174 #define GEM_TBQP(hw_q) (0x0440 + ((hw_q) << 2))
175 #define GEM_TBQPH(hw_q) (0x04C8)
176 #define GEM_RBQP(hw_q) (0x0480 + ((hw_q) << 2))
177 #define GEM_IER(hw_q) (0x0600 + ((hw_q) << 2))
178 #define GEM_IDR(hw_q) (0x0620 + ((hw_q) << 2))
179 #define GEM_IMR(hw_q) (0x0640 + ((hw_q) << 2))
181 /* Bitfields in NCR */
182 #define MACB_LB_OFFSET 0 /* reserved */
183 #define MACB_LB_SIZE 1
184 #define MACB_LLB_OFFSET 1 /* Loop back local */
185 #define MACB_LLB_SIZE 1
186 #define MACB_RE_OFFSET 2 /* Receive enable */
187 #define MACB_RE_SIZE 1
188 #define MACB_TE_OFFSET 3 /* Transmit enable */
189 #define MACB_TE_SIZE 1
190 #define MACB_MPE_OFFSET 4 /* Management port enable */
191 #define MACB_MPE_SIZE 1
192 #define MACB_CLRSTAT_OFFSET 5 /* Clear stats regs */
193 #define MACB_CLRSTAT_SIZE 1
194 #define MACB_INCSTAT_OFFSET 6 /* Incremental stats regs */
195 #define MACB_INCSTAT_SIZE 1
196 #define MACB_WESTAT_OFFSET 7 /* Write enable stats regs */
197 #define MACB_WESTAT_SIZE 1
198 #define MACB_BP_OFFSET 8 /* Back pressure */
199 #define MACB_BP_SIZE 1
200 #define MACB_TSTART_OFFSET 9 /* Start transmission */
201 #define MACB_TSTART_SIZE 1
202 #define MACB_THALT_OFFSET 10 /* Transmit halt */
203 #define MACB_THALT_SIZE 1
204 #define MACB_NCR_TPF_OFFSET 11 /* Transmit pause frame */
205 #define MACB_NCR_TPF_SIZE 1
206 #define MACB_TZQ_OFFSET 12 /* Transmit zero quantum pause frame */
207 #define MACB_TZQ_SIZE 1
208 #define MACB_SRTSM_OFFSET 15
209 #define MACB_OSSMODE_OFFSET 24 /* Enable One Step Synchro Mode */
210 #define MACB_OSSMODE_SIZE 1
212 /* Bitfields in NCFGR */
213 #define MACB_SPD_OFFSET 0 /* Speed */
214 #define MACB_SPD_SIZE 1
215 #define MACB_FD_OFFSET 1 /* Full duplex */
216 #define MACB_FD_SIZE 1
217 #define MACB_BIT_RATE_OFFSET 2 /* Discard non-VLAN frames */
218 #define MACB_BIT_RATE_SIZE 1
219 #define MACB_JFRAME_OFFSET 3 /* reserved */
220 #define MACB_JFRAME_SIZE 1
221 #define MACB_CAF_OFFSET 4 /* Copy all frames */
222 #define MACB_CAF_SIZE 1
223 #define MACB_NBC_OFFSET 5 /* No broadcast */
224 #define MACB_NBC_SIZE 1
225 #define MACB_NCFGR_MTI_OFFSET 6 /* Multicast hash enable */
226 #define MACB_NCFGR_MTI_SIZE 1
227 #define MACB_UNI_OFFSET 7 /* Unicast hash enable */
228 #define MACB_UNI_SIZE 1
229 #define MACB_BIG_OFFSET 8 /* Receive 1536 byte frames */
230 #define MACB_BIG_SIZE 1
231 #define MACB_EAE_OFFSET 9 /* External address match enable */
232 #define MACB_EAE_SIZE 1
233 #define MACB_CLK_OFFSET 10
234 #define MACB_CLK_SIZE 2
235 #define MACB_RTY_OFFSET 12 /* Retry test */
236 #define MACB_RTY_SIZE 1
237 #define MACB_PAE_OFFSET 13 /* Pause enable */
238 #define MACB_PAE_SIZE 1
239 #define MACB_RM9200_RMII_OFFSET 13 /* AT91RM9200 only */
240 #define MACB_RM9200_RMII_SIZE 1 /* AT91RM9200 only */
241 #define MACB_RBOF_OFFSET 14 /* Receive buffer offset */
242 #define MACB_RBOF_SIZE 2
243 #define MACB_RLCE_OFFSET 16 /* Length field error frame discard */
244 #define MACB_RLCE_SIZE 1
245 #define MACB_DRFCS_OFFSET 17 /* FCS remove */
246 #define MACB_DRFCS_SIZE 1
247 #define MACB_EFRHD_OFFSET 18
248 #define MACB_EFRHD_SIZE 1
249 #define MACB_IRXFCS_OFFSET 19
250 #define MACB_IRXFCS_SIZE 1
252 /* GEM specific NCFGR bitfields. */
253 #define GEM_GBE_OFFSET 10 /* Gigabit mode enable */
254 #define GEM_GBE_SIZE 1
255 #define GEM_PCSSEL_OFFSET 11
256 #define GEM_PCSSEL_SIZE 1
257 #define GEM_CLK_OFFSET 18 /* MDC clock division */
258 #define GEM_CLK_SIZE 3
259 #define GEM_DBW_OFFSET 21 /* Data bus width */
260 #define GEM_DBW_SIZE 2
261 #define GEM_RXCOEN_OFFSET 24
262 #define GEM_RXCOEN_SIZE 1
263 #define GEM_SGMIIEN_OFFSET 27
264 #define GEM_SGMIIEN_SIZE 1
267 /* Constants for data bus width. */
268 #define GEM_DBW32 0 /* 32 bit AMBA AHB data bus width */
269 #define GEM_DBW64 1 /* 64 bit AMBA AHB data bus width */
270 #define GEM_DBW128 2 /* 128 bit AMBA AHB data bus width */
272 /* Bitfields in DMACFG. */
273 #define GEM_FBLDO_OFFSET 0 /* fixed burst length for DMA */
274 #define GEM_FBLDO_SIZE 5
275 #define GEM_ENDIA_DESC_OFFSET 6 /* endian swap mode for management descriptor access */
276 #define GEM_ENDIA_DESC_SIZE 1
277 #define GEM_ENDIA_PKT_OFFSET 7 /* endian swap mode for packet data access */
278 #define GEM_ENDIA_PKT_SIZE 1
279 #define GEM_RXBMS_OFFSET 8 /* RX packet buffer memory size select */
280 #define GEM_RXBMS_SIZE 2
281 #define GEM_TXPBMS_OFFSET 10 /* TX packet buffer memory size select */
282 #define GEM_TXPBMS_SIZE 1
283 #define GEM_TXCOEN_OFFSET 11 /* TX IP/TCP/UDP checksum gen offload */
284 #define GEM_TXCOEN_SIZE 1
285 #define GEM_RXBS_OFFSET 16 /* DMA receive buffer size */
286 #define GEM_RXBS_SIZE 8
287 #define GEM_DDRP_OFFSET 24 /* disc_when_no_ahb */
288 #define GEM_DDRP_SIZE 1
289 #define GEM_RXEXT_OFFSET 28 /* RX extended Buffer Descriptor mode */
290 #define GEM_RXEXT_SIZE 1
291 #define GEM_TXEXT_OFFSET 29 /* TX extended Buffer Descriptor mode */
292 #define GEM_TXEXT_SIZE 1
293 #define GEM_ADDR64_OFFSET 30 /* Address bus width - 64b or 32b */
294 #define GEM_ADDR64_SIZE 1
297 /* Bitfields in NSR */
298 #define MACB_NSR_LINK_OFFSET 0 /* pcs_link_state */
299 #define MACB_NSR_LINK_SIZE 1
300 #define MACB_MDIO_OFFSET 1 /* status of the mdio_in pin */
301 #define MACB_MDIO_SIZE 1
302 #define MACB_IDLE_OFFSET 2 /* The PHY management logic is idle */
303 #define MACB_IDLE_SIZE 1
305 /* Bitfields in TSR */
306 #define MACB_UBR_OFFSET 0 /* Used bit read */
307 #define MACB_UBR_SIZE 1
308 #define MACB_COL_OFFSET 1 /* Collision occurred */
309 #define MACB_COL_SIZE 1
310 #define MACB_TSR_RLE_OFFSET 2 /* Retry limit exceeded */
311 #define MACB_TSR_RLE_SIZE 1
312 #define MACB_TGO_OFFSET 3 /* Transmit go */
313 #define MACB_TGO_SIZE 1
314 #define MACB_BEX_OFFSET 4 /* TX frame corruption due to AHB error */
315 #define MACB_BEX_SIZE 1
316 #define MACB_RM9200_BNQ_OFFSET 4 /* AT91RM9200 only */
317 #define MACB_RM9200_BNQ_SIZE 1 /* AT91RM9200 only */
318 #define MACB_COMP_OFFSET 5 /* Trnasmit complete */
319 #define MACB_COMP_SIZE 1
320 #define MACB_UND_OFFSET 6 /* Trnasmit under run */
321 #define MACB_UND_SIZE 1
323 /* Bitfields in RSR */
324 #define MACB_BNA_OFFSET 0 /* Buffer not available */
325 #define MACB_BNA_SIZE 1
326 #define MACB_REC_OFFSET 1 /* Frame received */
327 #define MACB_REC_SIZE 1
328 #define MACB_OVR_OFFSET 2 /* Receive overrun */
329 #define MACB_OVR_SIZE 1
331 /* Bitfields in ISR/IER/IDR/IMR */
332 #define MACB_MFD_OFFSET 0 /* Management frame sent */
333 #define MACB_MFD_SIZE 1
334 #define MACB_RCOMP_OFFSET 1 /* Receive complete */
335 #define MACB_RCOMP_SIZE 1
336 #define MACB_RXUBR_OFFSET 2 /* RX used bit read */
337 #define MACB_RXUBR_SIZE 1
338 #define MACB_TXUBR_OFFSET 3 /* TX used bit read */
339 #define MACB_TXUBR_SIZE 1
340 #define MACB_ISR_TUND_OFFSET 4 /* Enable TX buffer under run interrupt */
341 #define MACB_ISR_TUND_SIZE 1
342 #define MACB_ISR_RLE_OFFSET 5 /* EN retry exceeded/late coll interrupt */
343 #define MACB_ISR_RLE_SIZE 1
344 #define MACB_TXERR_OFFSET 6 /* EN TX frame corrupt from error interrupt */
345 #define MACB_TXERR_SIZE 1
346 #define MACB_TCOMP_OFFSET 7 /* Enable transmit complete interrupt */
347 #define MACB_TCOMP_SIZE 1
348 #define MACB_ISR_LINK_OFFSET 9 /* Enable link change interrupt */
349 #define MACB_ISR_LINK_SIZE 1
350 #define MACB_ISR_ROVR_OFFSET 10 /* Enable receive overrun interrupt */
351 #define MACB_ISR_ROVR_SIZE 1
352 #define MACB_HRESP_OFFSET 11 /* Enable hrsep not OK interrupt */
353 #define MACB_HRESP_SIZE 1
354 #define MACB_PFR_OFFSET 12 /* Enable pause frame w/ quantum interrupt */
355 #define MACB_PFR_SIZE 1
356 #define MACB_PTZ_OFFSET 13 /* Enable pause time zero interrupt */
357 #define MACB_PTZ_SIZE 1
358 #define MACB_WOL_OFFSET 14 /* Enable wake-on-lan interrupt */
359 #define MACB_WOL_SIZE 1
360 #define MACB_DRQFR_OFFSET 18 /* PTP Delay Request Frame Received */
361 #define MACB_DRQFR_SIZE 1
362 #define MACB_SFR_OFFSET 19 /* PTP Sync Frame Received */
363 #define MACB_SFR_SIZE 1
364 #define MACB_DRQFT_OFFSET 20 /* PTP Delay Request Frame Transmitted */
365 #define MACB_DRQFT_SIZE 1
366 #define MACB_SFT_OFFSET 21 /* PTP Sync Frame Transmitted */
367 #define MACB_SFT_SIZE 1
368 #define MACB_PDRQFR_OFFSET 22 /* PDelay Request Frame Received */
369 #define MACB_PDRQFR_SIZE 1
370 #define MACB_PDRSFR_OFFSET 23 /* PDelay Response Frame Received */
371 #define MACB_PDRSFR_SIZE 1
372 #define MACB_PDRQFT_OFFSET 24 /* PDelay Request Frame Transmitted */
373 #define MACB_PDRQFT_SIZE 1
374 #define MACB_PDRSFT_OFFSET 25 /* PDelay Response Frame Transmitted */
375 #define MACB_PDRSFT_SIZE 1
376 #define MACB_SRI_OFFSET 26 /* TSU Seconds Register Increment */
377 #define MACB_SRI_SIZE 1
379 /* Timer increment fields */
380 #define MACB_TI_CNS_OFFSET 0
381 #define MACB_TI_CNS_SIZE 8
382 #define MACB_TI_ACNS_OFFSET 8
383 #define MACB_TI_ACNS_SIZE 8
384 #define MACB_TI_NIT_OFFSET 16
385 #define MACB_TI_NIT_SIZE 8
387 /* Bitfields in MAN */
388 #define MACB_DATA_OFFSET 0 /* data */
389 #define MACB_DATA_SIZE 16
390 #define MACB_CODE_OFFSET 16 /* Must be written to 10 */
391 #define MACB_CODE_SIZE 2
392 #define MACB_REGA_OFFSET 18 /* Register address */
393 #define MACB_REGA_SIZE 5
394 #define MACB_PHYA_OFFSET 23 /* PHY address */
395 #define MACB_PHYA_SIZE 5
396 #define MACB_RW_OFFSET 28 /* Operation. 10 is read. 01 is write. */
397 #define MACB_RW_SIZE 2
398 #define MACB_SOF_OFFSET 30 /* Must be written to 1 for Clause 22 */
399 #define MACB_SOF_SIZE 2
401 /* Bitfields in USRIO (AVR32) */
402 #define MACB_MII_OFFSET 0
403 #define MACB_MII_SIZE 1
404 #define MACB_EAM_OFFSET 1
405 #define MACB_EAM_SIZE 1
406 #define MACB_TX_PAUSE_OFFSET 2
407 #define MACB_TX_PAUSE_SIZE 1
408 #define MACB_TX_PAUSE_ZERO_OFFSET 3
409 #define MACB_TX_PAUSE_ZERO_SIZE 1
411 /* Bitfields in USRIO (AT91) */
412 #define MACB_RMII_OFFSET 0
413 #define MACB_RMII_SIZE 1
414 #define GEM_RGMII_OFFSET 0 /* GEM gigabit mode */
415 #define GEM_RGMII_SIZE 1
416 #define MACB_CLKEN_OFFSET 1
417 #define MACB_CLKEN_SIZE 1
419 /* Bitfields in WOL */
420 #define MACB_IP_OFFSET 0
421 #define MACB_IP_SIZE 16
422 #define MACB_MAG_OFFSET 16
423 #define MACB_MAG_SIZE 1
424 #define MACB_ARP_OFFSET 17
425 #define MACB_ARP_SIZE 1
426 #define MACB_SA1_OFFSET 18
427 #define MACB_SA1_SIZE 1
428 #define MACB_WOL_MTI_OFFSET 19
429 #define MACB_WOL_MTI_SIZE 1
431 /* Bitfields in MID */
432 #define MACB_IDNUM_OFFSET 16
433 #define MACB_IDNUM_SIZE 12
434 #define MACB_REV_OFFSET 0
435 #define MACB_REV_SIZE 16
437 /* Bitfields in PCSCNTRL */
438 #define GEM_PCSAUTONEG_OFFSET 12
439 #define GEM_PCSAUTONEG_SIZE 1
441 /* Bitfields in DCFG1. */
442 #define GEM_IRQCOR_OFFSET 23
443 #define GEM_IRQCOR_SIZE 1
444 #define GEM_DBWDEF_OFFSET 25
445 #define GEM_DBWDEF_SIZE 3
447 /* Bitfields in DCFG2. */
448 #define GEM_RX_PKT_BUFF_OFFSET 20
449 #define GEM_RX_PKT_BUFF_SIZE 1
450 #define GEM_TX_PKT_BUFF_OFFSET 21
451 #define GEM_TX_PKT_BUFF_SIZE 1
454 /* Bitfields in DCFG5. */
455 #define GEM_TSU_OFFSET 8
456 #define GEM_TSU_SIZE 1
458 /* Bitfields in DCFG6. */
459 #define GEM_PBUF_LSO_OFFSET 27
460 #define GEM_PBUF_LSO_SIZE 1
461 #define GEM_DAW64_OFFSET 23
462 #define GEM_DAW64_SIZE 1
464 /* Bitfields in TISUBN */
465 #define GEM_SUBNSINCR_OFFSET 0
466 #define GEM_SUBNSINCR_SIZE 16
468 /* Bitfields in TI */
469 #define GEM_NSINCR_OFFSET 0
470 #define GEM_NSINCR_SIZE 8
472 /* Bitfields in TSH */
473 #define GEM_TSH_OFFSET 0 /* TSU timer value (s). MSB [47:32] of seconds timer count */
474 #define GEM_TSH_SIZE 16
476 /* Bitfields in TSL */
477 #define GEM_TSL_OFFSET 0 /* TSU timer value (s). LSB [31:0] of seconds timer count */
478 #define GEM_TSL_SIZE 32
480 /* Bitfields in TN */
481 #define GEM_TN_OFFSET 0 /* TSU timer value (ns) */
482 #define GEM_TN_SIZE 30
484 /* Bitfields in TXBDCTRL */
485 #define GEM_TXTSMODE_OFFSET 4 /* TX Descriptor Timestamp Insertion mode */
486 #define GEM_TXTSMODE_SIZE 2
488 /* Bitfields in RXBDCTRL */
489 #define GEM_RXTSMODE_OFFSET 4 /* RX Descriptor Timestamp Insertion mode */
490 #define GEM_RXTSMODE_SIZE 2
492 /* Transmit DMA buffer descriptor Word 1 */
493 #define GEM_DMA_TXVALID_OFFSET 23 /* timestamp has been captured in the Buffer Descriptor */
494 #define GEM_DMA_TXVALID_SIZE 1
496 /* Receive DMA buffer descriptor Word 0 */
497 #define GEM_DMA_RXVALID_OFFSET 2 /* indicates a valid timestamp in the Buffer Descriptor */
498 #define GEM_DMA_RXVALID_SIZE 1
500 /* DMA buffer descriptor Word 2 (32 bit addressing) or Word 4 (64 bit addressing) */
501 #define GEM_DMA_SECL_OFFSET 30 /* Timestamp seconds[1:0] */
502 #define GEM_DMA_SECL_SIZE 2
503 #define GEM_DMA_NSEC_OFFSET 0 /* Timestamp nanosecs [29:0] */
504 #define GEM_DMA_NSEC_SIZE 30
506 /* DMA buffer descriptor Word 3 (32 bit addressing) or Word 5 (64 bit addressing) */
508 /* New hardware supports 12 bit precision of timestamp in DMA buffer descriptor.
509 * Old hardware supports only 6 bit precision but it is enough for PTP.
510 * Less accuracy is used always instead of checking hardware version.
512 #define GEM_DMA_SECH_OFFSET 0 /* Timestamp seconds[5:2] */
513 #define GEM_DMA_SECH_SIZE 4
514 #define GEM_DMA_SEC_WIDTH (GEM_DMA_SECH_SIZE + GEM_DMA_SECL_SIZE)
515 #define GEM_DMA_SEC_TOP (1 << GEM_DMA_SEC_WIDTH)
516 #define GEM_DMA_SEC_MASK (GEM_DMA_SEC_TOP - 1)
518 /* Bitfields in ADJ */
519 #define GEM_ADDSUB_OFFSET 31
520 #define GEM_ADDSUB_SIZE 1
521 /* Constants for CLK */
522 #define MACB_CLK_DIV8 0
523 #define MACB_CLK_DIV16 1
524 #define MACB_CLK_DIV32 2
525 #define MACB_CLK_DIV64 3
527 /* GEM specific constants for CLK. */
528 #define GEM_CLK_DIV8 0
529 #define GEM_CLK_DIV16 1
530 #define GEM_CLK_DIV32 2
531 #define GEM_CLK_DIV48 3
532 #define GEM_CLK_DIV64 4
533 #define GEM_CLK_DIV96 5
535 /* Constants for MAN register */
536 #define MACB_MAN_SOF 1
537 #define MACB_MAN_WRITE 1
538 #define MACB_MAN_READ 2
539 #define MACB_MAN_CODE 2
541 /* Capability mask bits */
542 #define MACB_CAPS_ISR_CLEAR_ON_WRITE 0x00000001
543 #define MACB_CAPS_USRIO_HAS_CLKEN 0x00000002
544 #define MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII 0x00000004
545 #define MACB_CAPS_NO_GIGABIT_HALF 0x00000008
546 #define MACB_CAPS_USRIO_DISABLED 0x00000010
547 #define MACB_CAPS_JUMBO 0x00000020
548 #define MACB_CAPS_GEM_HAS_PTP 0x00000040
549 #define MACB_CAPS_PCS 0x00000080
550 #define MACB_CAPS_FIFO_MODE 0x10000000
551 #define MACB_CAPS_GIGABIT_MODE_AVAILABLE 0x20000000
552 #define MACB_CAPS_SG_DISABLED 0x40000000
553 #define MACB_CAPS_MACB_IS_GEM 0x80000000
556 #define MACB_LSO_UFO_ENABLE 0x01
557 #define MACB_LSO_TSO_ENABLE 0x02
559 /* Bit manipulation macros */
560 #define MACB_BIT(name) \
561 (1 << MACB_##name##_OFFSET)
562 #define MACB_BF(name,value) \
563 (((value) & ((1 << MACB_##name##_SIZE) - 1)) \
564 << MACB_##name##_OFFSET)
565 #define MACB_BFEXT(name,value)\
566 (((value) >> MACB_##name##_OFFSET) \
567 & ((1 << MACB_##name##_SIZE) - 1))
568 #define MACB_BFINS(name,value,old) \
569 (((old) & ~(((1 << MACB_##name##_SIZE) - 1) \
570 << MACB_##name##_OFFSET)) \
571 | MACB_BF(name,value))
573 #define GEM_BIT(name) \
574 (1 << GEM_##name##_OFFSET)
575 #define GEM_BF(name, value) \
576 (((value) & ((1 << GEM_##name##_SIZE) - 1)) \
577 << GEM_##name##_OFFSET)
578 #define GEM_BFEXT(name, value)\
579 (((value) >> GEM_##name##_OFFSET) \
580 & ((1 << GEM_##name##_SIZE) - 1))
581 #define GEM_BFINS(name, value, old) \
582 (((old) & ~(((1 << GEM_##name##_SIZE) - 1) \
583 << GEM_##name##_OFFSET)) \
584 | GEM_BF(name, value))
586 /* Register access macros */
587 #define macb_readl(port, reg) (port)->macb_reg_readl((port), MACB_##reg)
588 #define macb_writel(port, reg, value) (port)->macb_reg_writel((port), MACB_##reg, (value))
589 #define gem_readl(port, reg) (port)->macb_reg_readl((port), GEM_##reg)
590 #define gem_writel(port, reg, value) (port)->macb_reg_writel((port), GEM_##reg, (value))
591 #define queue_readl(queue, reg) (queue)->bp->macb_reg_readl((queue)->bp, (queue)->reg)
592 #define queue_writel(queue, reg, value) (queue)->bp->macb_reg_writel((queue)->bp, (queue)->reg, (value))
594 #define PTP_TS_BUFFER_SIZE 128 /* must be power of 2 */
596 /* Conditional GEM/MACB macros. These perform the operation to the correct
597 * register dependent on whether the device is a GEM or a MACB. For registers
598 * and bitfields that are common across both devices, use macb_{read,write}l
599 * to avoid the cost of the conditional.
601 #define macb_or_gem_writel(__bp, __reg, __value) \
603 if (macb_is_gem((__bp))) \
604 gem_writel((__bp), __reg, __value); \
606 macb_writel((__bp), __reg, __value); \
609 #define macb_or_gem_readl(__bp, __reg) \
612 if (macb_is_gem((__bp))) \
613 __v = gem_readl((__bp), __reg); \
615 __v = macb_readl((__bp), __reg); \
619 /* struct macb_dma_desc - Hardware DMA descriptor
620 * @addr: DMA address of data buffer
621 * @ctrl: Control and status bits
623 struct macb_dma_desc {
629 #define HW_DMA_CAP_32B 0
630 #define HW_DMA_CAP_64B (1 << 0)
631 #define HW_DMA_CAP_PTP (1 << 1)
632 #define HW_DMA_CAP_64B_PTP (HW_DMA_CAP_64B | HW_DMA_CAP_PTP)
634 struct macb_dma_desc_64 {
639 struct macb_dma_desc_ptp {
646 struct macb_dma_desc_ptp desc_ptp;
650 /* DMA descriptor bitfields */
651 #define MACB_RX_USED_OFFSET 0
652 #define MACB_RX_USED_SIZE 1
653 #define MACB_RX_WRAP_OFFSET 1
654 #define MACB_RX_WRAP_SIZE 1
655 #define MACB_RX_WADDR_OFFSET 2
656 #define MACB_RX_WADDR_SIZE 30
658 #define MACB_RX_FRMLEN_OFFSET 0
659 #define MACB_RX_FRMLEN_SIZE 12
660 #define MACB_RX_OFFSET_OFFSET 12
661 #define MACB_RX_OFFSET_SIZE 2
662 #define MACB_RX_SOF_OFFSET 14
663 #define MACB_RX_SOF_SIZE 1
664 #define MACB_RX_EOF_OFFSET 15
665 #define MACB_RX_EOF_SIZE 1
666 #define MACB_RX_CFI_OFFSET 16
667 #define MACB_RX_CFI_SIZE 1
668 #define MACB_RX_VLAN_PRI_OFFSET 17
669 #define MACB_RX_VLAN_PRI_SIZE 3
670 #define MACB_RX_PRI_TAG_OFFSET 20
671 #define MACB_RX_PRI_TAG_SIZE 1
672 #define MACB_RX_VLAN_TAG_OFFSET 21
673 #define MACB_RX_VLAN_TAG_SIZE 1
674 #define MACB_RX_TYPEID_MATCH_OFFSET 22
675 #define MACB_RX_TYPEID_MATCH_SIZE 1
676 #define MACB_RX_SA4_MATCH_OFFSET 23
677 #define MACB_RX_SA4_MATCH_SIZE 1
678 #define MACB_RX_SA3_MATCH_OFFSET 24
679 #define MACB_RX_SA3_MATCH_SIZE 1
680 #define MACB_RX_SA2_MATCH_OFFSET 25
681 #define MACB_RX_SA2_MATCH_SIZE 1
682 #define MACB_RX_SA1_MATCH_OFFSET 26
683 #define MACB_RX_SA1_MATCH_SIZE 1
684 #define MACB_RX_EXT_MATCH_OFFSET 28
685 #define MACB_RX_EXT_MATCH_SIZE 1
686 #define MACB_RX_UHASH_MATCH_OFFSET 29
687 #define MACB_RX_UHASH_MATCH_SIZE 1
688 #define MACB_RX_MHASH_MATCH_OFFSET 30
689 #define MACB_RX_MHASH_MATCH_SIZE 1
690 #define MACB_RX_BROADCAST_OFFSET 31
691 #define MACB_RX_BROADCAST_SIZE 1
693 #define MACB_RX_FRMLEN_MASK 0xFFF
694 #define MACB_RX_JFRMLEN_MASK 0x3FFF
696 /* RX checksum offload disabled: bit 24 clear in NCFGR */
697 #define GEM_RX_TYPEID_MATCH_OFFSET 22
698 #define GEM_RX_TYPEID_MATCH_SIZE 2
700 /* RX checksum offload enabled: bit 24 set in NCFGR */
701 #define GEM_RX_CSUM_OFFSET 22
702 #define GEM_RX_CSUM_SIZE 2
704 #define MACB_TX_FRMLEN_OFFSET 0
705 #define MACB_TX_FRMLEN_SIZE 11
706 #define MACB_TX_LAST_OFFSET 15
707 #define MACB_TX_LAST_SIZE 1
708 #define MACB_TX_NOCRC_OFFSET 16
709 #define MACB_TX_NOCRC_SIZE 1
710 #define MACB_MSS_MFS_OFFSET 16
711 #define MACB_MSS_MFS_SIZE 14
712 #define MACB_TX_LSO_OFFSET 17
713 #define MACB_TX_LSO_SIZE 2
714 #define MACB_TX_TCP_SEQ_SRC_OFFSET 19
715 #define MACB_TX_TCP_SEQ_SRC_SIZE 1
716 #define MACB_TX_BUF_EXHAUSTED_OFFSET 27
717 #define MACB_TX_BUF_EXHAUSTED_SIZE 1
718 #define MACB_TX_UNDERRUN_OFFSET 28
719 #define MACB_TX_UNDERRUN_SIZE 1
720 #define MACB_TX_ERROR_OFFSET 29
721 #define MACB_TX_ERROR_SIZE 1
722 #define MACB_TX_WRAP_OFFSET 30
723 #define MACB_TX_WRAP_SIZE 1
724 #define MACB_TX_USED_OFFSET 31
725 #define MACB_TX_USED_SIZE 1
727 #define GEM_TX_FRMLEN_OFFSET 0
728 #define GEM_TX_FRMLEN_SIZE 14
730 /* Buffer descriptor constants */
731 #define GEM_RX_CSUM_NONE 0
732 #define GEM_RX_CSUM_IP_ONLY 1
733 #define GEM_RX_CSUM_IP_TCP 2
734 #define GEM_RX_CSUM_IP_UDP 3
736 /* limit RX checksum offload to TCP and UDP packets */
737 #define GEM_RX_CSUM_CHECKED_MASK 2
739 /* struct macb_tx_skb - data about an skb which is being transmitted
740 * @skb: skb currently being transmitted, only set for the last buffer
742 * @mapping: DMA address of the skb's fragment buffer
743 * @size: size of the DMA mapped buffer
744 * @mapped_as_page: true when buffer was mapped with skb_frag_dma_map(),
745 * false when buffer was mapped with dma_map_single()
754 /* Hardware-collected statistics. Used when updating the network
755 * device stats by a periodic timer.
761 u32 tx_multiple_cols;
767 u32 tx_excessive_cols;
769 u32 tx_carrier_errors;
770 u32 rx_resource_errors;
772 u32 rx_symbol_errors;
773 u32 rx_oversize_pkts;
775 u32 rx_undersize_pkts;
777 u32 rx_length_mismatch;
785 u32 tx_broadcast_frames;
786 u32 tx_multicast_frames;
788 u32 tx_64_byte_frames;
789 u32 tx_65_127_byte_frames;
790 u32 tx_128_255_byte_frames;
791 u32 tx_256_511_byte_frames;
792 u32 tx_512_1023_byte_frames;
793 u32 tx_1024_1518_byte_frames;
794 u32 tx_greater_than_1518_byte_frames;
796 u32 tx_single_collision_frames;
797 u32 tx_multiple_collision_frames;
798 u32 tx_excessive_collisions;
799 u32 tx_late_collisions;
800 u32 tx_deferred_frames;
801 u32 tx_carrier_sense_errors;
805 u32 rx_broadcast_frames;
806 u32 rx_multicast_frames;
808 u32 rx_64_byte_frames;
809 u32 rx_65_127_byte_frames;
810 u32 rx_128_255_byte_frames;
811 u32 rx_256_511_byte_frames;
812 u32 rx_512_1023_byte_frames;
813 u32 rx_1024_1518_byte_frames;
814 u32 rx_greater_than_1518_byte_frames;
815 u32 rx_undersized_frames;
816 u32 rx_oversize_frames;
818 u32 rx_frame_check_sequence_errors;
819 u32 rx_length_field_frame_errors;
820 u32 rx_symbol_errors;
821 u32 rx_alignment_errors;
822 u32 rx_resource_errors;
824 u32 rx_ip_header_checksum_errors;
825 u32 rx_tcp_checksum_errors;
826 u32 rx_udp_checksum_errors;
829 /* Describes the name and offset of an individual statistic register, as
830 * returned by `ethtool -S`. Also describes which net_device_stats statistics
831 * this register should contribute to.
833 struct gem_statistic {
834 char stat_string[ETH_GSTRING_LEN];
839 /* Bitfield defs for net_device_stat statistics */
840 #define GEM_NDS_RXERR_OFFSET 0
841 #define GEM_NDS_RXLENERR_OFFSET 1
842 #define GEM_NDS_RXOVERERR_OFFSET 2
843 #define GEM_NDS_RXCRCERR_OFFSET 3
844 #define GEM_NDS_RXFRAMEERR_OFFSET 4
845 #define GEM_NDS_RXFIFOERR_OFFSET 5
846 #define GEM_NDS_TXERR_OFFSET 6
847 #define GEM_NDS_TXABORTEDERR_OFFSET 7
848 #define GEM_NDS_TXCARRIERERR_OFFSET 8
849 #define GEM_NDS_TXFIFOERR_OFFSET 9
850 #define GEM_NDS_COLLISIONS_OFFSET 10
852 #define GEM_STAT_TITLE(name, title) GEM_STAT_TITLE_BITS(name, title, 0)
853 #define GEM_STAT_TITLE_BITS(name, title, bits) { \
854 .stat_string = title, \
855 .offset = GEM_##name, \
859 /* list of gem statistic registers. The names MUST match the
860 * corresponding GEM_* definitions.
862 static const struct gem_statistic gem_statistics[] = {
863 GEM_STAT_TITLE(OCTTXL, "tx_octets"), /* OCTTXH combined with OCTTXL */
864 GEM_STAT_TITLE(TXCNT, "tx_frames"),
865 GEM_STAT_TITLE(TXBCCNT, "tx_broadcast_frames"),
866 GEM_STAT_TITLE(TXMCCNT, "tx_multicast_frames"),
867 GEM_STAT_TITLE(TXPAUSECNT, "tx_pause_frames"),
868 GEM_STAT_TITLE(TX64CNT, "tx_64_byte_frames"),
869 GEM_STAT_TITLE(TX65CNT, "tx_65_127_byte_frames"),
870 GEM_STAT_TITLE(TX128CNT, "tx_128_255_byte_frames"),
871 GEM_STAT_TITLE(TX256CNT, "tx_256_511_byte_frames"),
872 GEM_STAT_TITLE(TX512CNT, "tx_512_1023_byte_frames"),
873 GEM_STAT_TITLE(TX1024CNT, "tx_1024_1518_byte_frames"),
874 GEM_STAT_TITLE(TX1519CNT, "tx_greater_than_1518_byte_frames"),
875 GEM_STAT_TITLE_BITS(TXURUNCNT, "tx_underrun",
876 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_TXFIFOERR)),
877 GEM_STAT_TITLE_BITS(SNGLCOLLCNT, "tx_single_collision_frames",
878 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
879 GEM_STAT_TITLE_BITS(MULTICOLLCNT, "tx_multiple_collision_frames",
880 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
881 GEM_STAT_TITLE_BITS(EXCESSCOLLCNT, "tx_excessive_collisions",
883 GEM_BIT(NDS_TXABORTEDERR)|
884 GEM_BIT(NDS_COLLISIONS)),
885 GEM_STAT_TITLE_BITS(LATECOLLCNT, "tx_late_collisions",
886 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
887 GEM_STAT_TITLE(TXDEFERCNT, "tx_deferred_frames"),
888 GEM_STAT_TITLE_BITS(TXCSENSECNT, "tx_carrier_sense_errors",
889 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
890 GEM_STAT_TITLE(OCTRXL, "rx_octets"), /* OCTRXH combined with OCTRXL */
891 GEM_STAT_TITLE(RXCNT, "rx_frames"),
892 GEM_STAT_TITLE(RXBROADCNT, "rx_broadcast_frames"),
893 GEM_STAT_TITLE(RXMULTICNT, "rx_multicast_frames"),
894 GEM_STAT_TITLE(RXPAUSECNT, "rx_pause_frames"),
895 GEM_STAT_TITLE(RX64CNT, "rx_64_byte_frames"),
896 GEM_STAT_TITLE(RX65CNT, "rx_65_127_byte_frames"),
897 GEM_STAT_TITLE(RX128CNT, "rx_128_255_byte_frames"),
898 GEM_STAT_TITLE(RX256CNT, "rx_256_511_byte_frames"),
899 GEM_STAT_TITLE(RX512CNT, "rx_512_1023_byte_frames"),
900 GEM_STAT_TITLE(RX1024CNT, "rx_1024_1518_byte_frames"),
901 GEM_STAT_TITLE(RX1519CNT, "rx_greater_than_1518_byte_frames"),
902 GEM_STAT_TITLE_BITS(RXUNDRCNT, "rx_undersized_frames",
903 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
904 GEM_STAT_TITLE_BITS(RXOVRCNT, "rx_oversize_frames",
905 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
906 GEM_STAT_TITLE_BITS(RXJABCNT, "rx_jabbers",
907 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
908 GEM_STAT_TITLE_BITS(RXFCSCNT, "rx_frame_check_sequence_errors",
909 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXCRCERR)),
910 GEM_STAT_TITLE_BITS(RXLENGTHCNT, "rx_length_field_frame_errors",
912 GEM_STAT_TITLE_BITS(RXSYMBCNT, "rx_symbol_errors",
913 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFRAMEERR)),
914 GEM_STAT_TITLE_BITS(RXALIGNCNT, "rx_alignment_errors",
915 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)),
916 GEM_STAT_TITLE_BITS(RXRESERRCNT, "rx_resource_errors",
917 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)),
918 GEM_STAT_TITLE_BITS(RXORCNT, "rx_overruns",
919 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFIFOERR)),
920 GEM_STAT_TITLE_BITS(RXIPCCNT, "rx_ip_header_checksum_errors",
922 GEM_STAT_TITLE_BITS(RXTCPCCNT, "rx_tcp_checksum_errors",
924 GEM_STAT_TITLE_BITS(RXUDPCCNT, "rx_udp_checksum_errors",
928 #define GEM_STATS_LEN ARRAY_SIZE(gem_statistics)
932 struct macb_or_gem_ops {
933 int (*mog_alloc_rx_buffers)(struct macb *bp);
934 void (*mog_free_rx_buffers)(struct macb *bp);
935 void (*mog_init_rings)(struct macb *bp);
936 int (*mog_rx)(struct macb *bp, int budget);
939 /* MACB-PTP interface: adapt to platform needs. */
940 struct macb_ptp_info {
941 void (*ptp_init)(struct net_device *ndev);
942 void (*ptp_remove)(struct net_device *ndev);
943 s32 (*get_ptp_max_adj)(void);
944 unsigned int (*get_tsu_rate)(struct macb *bp);
945 int (*get_ts_info)(struct net_device *dev,
946 struct ethtool_ts_info *info);
947 int (*get_hwtst)(struct net_device *netdev,
949 int (*set_hwtst)(struct net_device *netdev,
950 struct ifreq *ifr, int cmd);
955 unsigned int dma_burst_length;
956 int (*clk_init)(struct platform_device *pdev, struct clk **pclk,
957 struct clk **hclk, struct clk **tx_clk,
958 struct clk **rx_clk);
959 int (*init)(struct platform_device *pdev);
980 unsigned int tx_head, tx_tail;
981 struct macb_dma_desc *tx_ring;
982 struct macb_tx_skb *tx_skb;
983 dma_addr_t tx_ring_dma;
984 struct work_struct tx_error_task;
986 #ifdef CONFIG_MACB_USE_HWSTAMP
987 struct work_struct tx_ts_task;
988 unsigned int tx_ts_head, tx_ts_tail;
989 struct gem_tx_ts tx_timestamps[PTP_TS_BUFFER_SIZE];
997 /* hardware IO accessors */
998 u32 (*macb_reg_readl)(struct macb *bp, int offset);
999 void (*macb_reg_writel)(struct macb *bp, int offset, u32 value);
1001 unsigned int rx_tail;
1002 unsigned int rx_prepared_head;
1003 struct macb_dma_desc *rx_ring;
1004 struct macb_dma_desc *rx_ring_tieoff;
1005 struct sk_buff **rx_skbuff;
1007 size_t rx_buffer_size;
1009 unsigned int rx_ring_size;
1010 unsigned int tx_ring_size;
1012 unsigned int num_queues;
1013 unsigned int queue_mask;
1014 struct macb_queue queues[MACB_MAX_QUEUES];
1017 struct platform_device *pdev;
1022 struct net_device *dev;
1023 struct napi_struct napi;
1025 struct macb_stats macb;
1026 struct gem_stats gem;
1029 dma_addr_t rx_ring_dma;
1030 dma_addr_t rx_ring_tieoff_dma;
1031 dma_addr_t rx_buffers_dma;
1033 struct macb_or_gem_ops macbgem_ops;
1035 struct mii_bus *mii_bus;
1036 struct phy_device *phy_dev;
1037 struct device_node *phy_node;
1043 unsigned int dma_burst_length;
1045 phy_interface_t phy_interface;
1046 struct gpio_desc *reset_gpio;
1048 /* AT91RM9200 transmit */
1049 struct sk_buff *skb; /* holds skb until xmit interrupt completes */
1050 dma_addr_t skb_physaddr; /* phys addr from pci_map_single */
1051 int skb_length; /* saved skb length for pci_unmap_single */
1052 unsigned int max_tx_length;
1054 u64 ethtool_stats[GEM_STATS_LEN];
1056 unsigned int rx_frm_len_mask;
1057 unsigned int jumbo_max_len;
1061 struct tasklet_struct hresp_err_tasklet;
1063 struct macb_ptp_info *ptp_info; /* macb-ptp interface */
1064 #ifdef MACB_EXT_DESC
1067 spinlock_t tsu_clk_lock; /* gem tsu clock locking */
1068 unsigned int tsu_rate;
1069 struct ptp_clock *ptp_clock;
1070 struct ptp_clock_info ptp_clock_info;
1071 struct tsu_incr tsu_incr;
1072 struct hwtstamp_config tstamp_config;
1075 #ifdef CONFIG_MACB_USE_HWSTAMP
1076 #define GEM_TSEC_SIZE (GEM_TSH_SIZE + GEM_TSL_SIZE)
1077 #define TSU_SEC_MAX_VAL (((u64)1 << GEM_TSEC_SIZE) - 1)
1078 #define TSU_NSEC_MAX_VAL ((1 << GEM_TN_SIZE) - 1)
1080 enum macb_bd_control {
1082 TSTAMP_FRAME_PTP_EVENT_ONLY,
1083 TSTAMP_ALL_PTP_FRAMES,
1087 void gem_ptp_init(struct net_device *ndev);
1088 void gem_ptp_remove(struct net_device *ndev);
1089 int gem_ptp_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *des);
1090 void gem_ptp_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc);
1091 static inline int gem_ptp_do_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *desc)
1093 if (queue->bp->tstamp_config.tx_type == TSTAMP_DISABLED)
1096 return gem_ptp_txstamp(queue, skb, desc);
1099 static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc)
1101 if (bp->tstamp_config.rx_filter == TSTAMP_DISABLED)
1104 gem_ptp_rxstamp(bp, skb, desc);
1106 int gem_get_hwtst(struct net_device *dev, struct ifreq *rq);
1107 int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd);
1109 static inline void gem_ptp_init(struct net_device *ndev) { }
1110 static inline void gem_ptp_remove(struct net_device *ndev) { }
1112 static inline int gem_ptp_do_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *desc)
1117 static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc) { }
1120 static inline bool macb_is_gem(struct macb *bp)
1122 return !!(bp->caps & MACB_CAPS_MACB_IS_GEM);
1125 static inline bool gem_has_ptp(struct macb *bp)
1127 return !!(bp->caps & MACB_CAPS_GEM_HAS_PTP);
1130 #endif /* _MACB_H */