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>
17 #if defined(CONFIG_ARCH_DMA_ADDR_T_64BIT) || defined(CONFIG_MACB_USE_HWSTAMP)
21 #define MACB_GREGS_NBR 16
22 #define MACB_GREGS_VERSION 2
23 #define MACB_MAX_QUEUES 8
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
80 /* GEM register offsets. */
81 #define GEM_NCFGR 0x0004 /* Network Config */
82 #define GEM_USRIO 0x000c /* User IO */
83 #define GEM_DMACFG 0x0010 /* DMA Configuration */
84 #define GEM_JML 0x0048 /* Jumbo Max Length */
85 #define GEM_HRB 0x0080 /* Hash Bottom */
86 #define GEM_HRT 0x0084 /* Hash Top */
87 #define GEM_SA1B 0x0088 /* Specific1 Bottom */
88 #define GEM_SA1T 0x008C /* Specific1 Top */
89 #define GEM_SA2B 0x0090 /* Specific2 Bottom */
90 #define GEM_SA2T 0x0094 /* Specific2 Top */
91 #define GEM_SA3B 0x0098 /* Specific3 Bottom */
92 #define GEM_SA3T 0x009C /* Specific3 Top */
93 #define GEM_SA4B 0x00A0 /* Specific4 Bottom */
94 #define GEM_SA4T 0x00A4 /* Specific4 Top */
95 #define GEM_EFTSH 0x00e8 /* PTP Event Frame Transmitted Seconds Register 47:32 */
96 #define GEM_EFRSH 0x00ec /* PTP Event Frame Received Seconds Register 47:32 */
97 #define GEM_PEFTSH 0x00f0 /* PTP Peer Event Frame Transmitted Seconds Register 47:32 */
98 #define GEM_PEFRSH 0x00f4 /* PTP Peer Event Frame Received Seconds Register 47:32 */
99 #define GEM_OTX 0x0100 /* Octets transmitted */
100 #define GEM_OCTTXL 0x0100 /* Octets transmitted [31:0] */
101 #define GEM_OCTTXH 0x0104 /* Octets transmitted [47:32] */
102 #define GEM_TXCNT 0x0108 /* Frames Transmitted counter */
103 #define GEM_TXBCCNT 0x010c /* Broadcast Frames counter */
104 #define GEM_TXMCCNT 0x0110 /* Multicast Frames counter */
105 #define GEM_TXPAUSECNT 0x0114 /* Pause Frames Transmitted Counter */
106 #define GEM_TX64CNT 0x0118 /* 64 byte Frames TX counter */
107 #define GEM_TX65CNT 0x011c /* 65-127 byte Frames TX counter */
108 #define GEM_TX128CNT 0x0120 /* 128-255 byte Frames TX counter */
109 #define GEM_TX256CNT 0x0124 /* 256-511 byte Frames TX counter */
110 #define GEM_TX512CNT 0x0128 /* 512-1023 byte Frames TX counter */
111 #define GEM_TX1024CNT 0x012c /* 1024-1518 byte Frames TX counter */
112 #define GEM_TX1519CNT 0x0130 /* 1519+ byte Frames TX counter */
113 #define GEM_TXURUNCNT 0x0134 /* TX under run error counter */
114 #define GEM_SNGLCOLLCNT 0x0138 /* Single Collision Frame Counter */
115 #define GEM_MULTICOLLCNT 0x013c /* Multiple Collision Frame Counter */
116 #define GEM_EXCESSCOLLCNT 0x0140 /* Excessive Collision Frame Counter */
117 #define GEM_LATECOLLCNT 0x0144 /* Late Collision Frame Counter */
118 #define GEM_TXDEFERCNT 0x0148 /* Deferred Transmission Frame Counter */
119 #define GEM_TXCSENSECNT 0x014c /* Carrier Sense Error Counter */
120 #define GEM_ORX 0x0150 /* Octets received */
121 #define GEM_OCTRXL 0x0150 /* Octets received [31:0] */
122 #define GEM_OCTRXH 0x0154 /* Octets received [47:32] */
123 #define GEM_RXCNT 0x0158 /* Frames Received Counter */
124 #define GEM_RXBROADCNT 0x015c /* Broadcast Frames Received Counter */
125 #define GEM_RXMULTICNT 0x0160 /* Multicast Frames Received Counter */
126 #define GEM_RXPAUSECNT 0x0164 /* Pause Frames Received Counter */
127 #define GEM_RX64CNT 0x0168 /* 64 byte Frames RX Counter */
128 #define GEM_RX65CNT 0x016c /* 65-127 byte Frames RX Counter */
129 #define GEM_RX128CNT 0x0170 /* 128-255 byte Frames RX Counter */
130 #define GEM_RX256CNT 0x0174 /* 256-511 byte Frames RX Counter */
131 #define GEM_RX512CNT 0x0178 /* 512-1023 byte Frames RX Counter */
132 #define GEM_RX1024CNT 0x017c /* 1024-1518 byte Frames RX Counter */
133 #define GEM_RX1519CNT 0x0180 /* 1519+ byte Frames RX Counter */
134 #define GEM_RXUNDRCNT 0x0184 /* Undersize Frames Received Counter */
135 #define GEM_RXOVRCNT 0x0188 /* Oversize Frames Received Counter */
136 #define GEM_RXJABCNT 0x018c /* Jabbers Received Counter */
137 #define GEM_RXFCSCNT 0x0190 /* Frame Check Sequence Error Counter */
138 #define GEM_RXLENGTHCNT 0x0194 /* Length Field Error Counter */
139 #define GEM_RXSYMBCNT 0x0198 /* Symbol Error Counter */
140 #define GEM_RXALIGNCNT 0x019c /* Alignment Error Counter */
141 #define GEM_RXRESERRCNT 0x01a0 /* Receive Resource Error Counter */
142 #define GEM_RXORCNT 0x01a4 /* Receive Overrun Counter */
143 #define GEM_RXIPCCNT 0x01a8 /* IP header Checksum Error Counter */
144 #define GEM_RXTCPCCNT 0x01ac /* TCP Checksum Error Counter */
145 #define GEM_RXUDPCCNT 0x01b0 /* UDP Checksum Error Counter */
146 #define GEM_TISUBN 0x01bc /* 1588 Timer Increment Sub-ns */
147 #define GEM_TSH 0x01c0 /* 1588 Timer Seconds High */
148 #define GEM_TSL 0x01d0 /* 1588 Timer Seconds Low */
149 #define GEM_TN 0x01d4 /* 1588 Timer Nanoseconds */
150 #define GEM_TA 0x01d8 /* 1588 Timer Adjust */
151 #define GEM_TI 0x01dc /* 1588 Timer Increment */
152 #define GEM_EFTSL 0x01e0 /* PTP Event Frame Tx Seconds Low */
153 #define GEM_EFTN 0x01e4 /* PTP Event Frame Tx Nanoseconds */
154 #define GEM_EFRSL 0x01e8 /* PTP Event Frame Rx Seconds Low */
155 #define GEM_EFRN 0x01ec /* PTP Event Frame Rx Nanoseconds */
156 #define GEM_PEFTSL 0x01f0 /* PTP Peer Event Frame Tx Secs Low */
157 #define GEM_PEFTN 0x01f4 /* PTP Peer Event Frame Tx Ns */
158 #define GEM_PEFRSL 0x01f8 /* PTP Peer Event Frame Rx Sec Low */
159 #define GEM_PEFRN 0x01fc /* PTP Peer Event Frame Rx Ns */
160 #define GEM_DCFG1 0x0280 /* Design Config 1 */
161 #define GEM_DCFG2 0x0284 /* Design Config 2 */
162 #define GEM_DCFG3 0x0288 /* Design Config 3 */
163 #define GEM_DCFG4 0x028c /* Design Config 4 */
164 #define GEM_DCFG5 0x0290 /* Design Config 5 */
165 #define GEM_DCFG6 0x0294 /* Design Config 6 */
166 #define GEM_DCFG7 0x0298 /* Design Config 7 */
168 #define GEM_TXBDCTRL 0x04cc /* TX Buffer Descriptor control register */
169 #define GEM_RXBDCTRL 0x04d0 /* RX Buffer Descriptor control register */
171 #define GEM_ISR(hw_q) (0x0400 + ((hw_q) << 2))
172 #define GEM_TBQP(hw_q) (0x0440 + ((hw_q) << 2))
173 #define GEM_TBQPH(hw_q) (0x04C8)
174 #define GEM_RBQP(hw_q) (0x0480 + ((hw_q) << 2))
175 #define GEM_IER(hw_q) (0x0600 + ((hw_q) << 2))
176 #define GEM_IDR(hw_q) (0x0620 + ((hw_q) << 2))
177 #define GEM_IMR(hw_q) (0x0640 + ((hw_q) << 2))
179 /* Bitfields in NCR */
180 #define MACB_LB_OFFSET 0 /* reserved */
181 #define MACB_LB_SIZE 1
182 #define MACB_LLB_OFFSET 1 /* Loop back local */
183 #define MACB_LLB_SIZE 1
184 #define MACB_RE_OFFSET 2 /* Receive enable */
185 #define MACB_RE_SIZE 1
186 #define MACB_TE_OFFSET 3 /* Transmit enable */
187 #define MACB_TE_SIZE 1
188 #define MACB_MPE_OFFSET 4 /* Management port enable */
189 #define MACB_MPE_SIZE 1
190 #define MACB_CLRSTAT_OFFSET 5 /* Clear stats regs */
191 #define MACB_CLRSTAT_SIZE 1
192 #define MACB_INCSTAT_OFFSET 6 /* Incremental stats regs */
193 #define MACB_INCSTAT_SIZE 1
194 #define MACB_WESTAT_OFFSET 7 /* Write enable stats regs */
195 #define MACB_WESTAT_SIZE 1
196 #define MACB_BP_OFFSET 8 /* Back pressure */
197 #define MACB_BP_SIZE 1
198 #define MACB_TSTART_OFFSET 9 /* Start transmission */
199 #define MACB_TSTART_SIZE 1
200 #define MACB_THALT_OFFSET 10 /* Transmit halt */
201 #define MACB_THALT_SIZE 1
202 #define MACB_NCR_TPF_OFFSET 11 /* Transmit pause frame */
203 #define MACB_NCR_TPF_SIZE 1
204 #define MACB_TZQ_OFFSET 12 /* Transmit zero quantum pause frame */
205 #define MACB_TZQ_SIZE 1
206 #define MACB_SRTSM_OFFSET 15
207 #define MACB_OSSMODE_OFFSET 24 /* Enable One Step Synchro Mode */
208 #define MACB_OSSMODE_SIZE 1
210 /* Bitfields in NCFGR */
211 #define MACB_SPD_OFFSET 0 /* Speed */
212 #define MACB_SPD_SIZE 1
213 #define MACB_FD_OFFSET 1 /* Full duplex */
214 #define MACB_FD_SIZE 1
215 #define MACB_BIT_RATE_OFFSET 2 /* Discard non-VLAN frames */
216 #define MACB_BIT_RATE_SIZE 1
217 #define MACB_JFRAME_OFFSET 3 /* reserved */
218 #define MACB_JFRAME_SIZE 1
219 #define MACB_CAF_OFFSET 4 /* Copy all frames */
220 #define MACB_CAF_SIZE 1
221 #define MACB_NBC_OFFSET 5 /* No broadcast */
222 #define MACB_NBC_SIZE 1
223 #define MACB_NCFGR_MTI_OFFSET 6 /* Multicast hash enable */
224 #define MACB_NCFGR_MTI_SIZE 1
225 #define MACB_UNI_OFFSET 7 /* Unicast hash enable */
226 #define MACB_UNI_SIZE 1
227 #define MACB_BIG_OFFSET 8 /* Receive 1536 byte frames */
228 #define MACB_BIG_SIZE 1
229 #define MACB_EAE_OFFSET 9 /* External address match enable */
230 #define MACB_EAE_SIZE 1
231 #define MACB_CLK_OFFSET 10
232 #define MACB_CLK_SIZE 2
233 #define MACB_RTY_OFFSET 12 /* Retry test */
234 #define MACB_RTY_SIZE 1
235 #define MACB_PAE_OFFSET 13 /* Pause enable */
236 #define MACB_PAE_SIZE 1
237 #define MACB_RM9200_RMII_OFFSET 13 /* AT91RM9200 only */
238 #define MACB_RM9200_RMII_SIZE 1 /* AT91RM9200 only */
239 #define MACB_RBOF_OFFSET 14 /* Receive buffer offset */
240 #define MACB_RBOF_SIZE 2
241 #define MACB_RLCE_OFFSET 16 /* Length field error frame discard */
242 #define MACB_RLCE_SIZE 1
243 #define MACB_DRFCS_OFFSET 17 /* FCS remove */
244 #define MACB_DRFCS_SIZE 1
245 #define MACB_EFRHD_OFFSET 18
246 #define MACB_EFRHD_SIZE 1
247 #define MACB_IRXFCS_OFFSET 19
248 #define MACB_IRXFCS_SIZE 1
250 /* GEM specific NCFGR bitfields. */
251 #define GEM_GBE_OFFSET 10 /* Gigabit mode enable */
252 #define GEM_GBE_SIZE 1
253 #define GEM_PCSSEL_OFFSET 11
254 #define GEM_PCSSEL_SIZE 1
255 #define GEM_CLK_OFFSET 18 /* MDC clock division */
256 #define GEM_CLK_SIZE 3
257 #define GEM_DBW_OFFSET 21 /* Data bus width */
258 #define GEM_DBW_SIZE 2
259 #define GEM_RXCOEN_OFFSET 24
260 #define GEM_RXCOEN_SIZE 1
261 #define GEM_SGMIIEN_OFFSET 27
262 #define GEM_SGMIIEN_SIZE 1
265 /* Constants for data bus width. */
266 #define GEM_DBW32 0 /* 32 bit AMBA AHB data bus width */
267 #define GEM_DBW64 1 /* 64 bit AMBA AHB data bus width */
268 #define GEM_DBW128 2 /* 128 bit AMBA AHB data bus width */
270 /* Bitfields in DMACFG. */
271 #define GEM_FBLDO_OFFSET 0 /* fixed burst length for DMA */
272 #define GEM_FBLDO_SIZE 5
273 #define GEM_ENDIA_DESC_OFFSET 6 /* endian swap mode for management descriptor access */
274 #define GEM_ENDIA_DESC_SIZE 1
275 #define GEM_ENDIA_PKT_OFFSET 7 /* endian swap mode for packet data access */
276 #define GEM_ENDIA_PKT_SIZE 1
277 #define GEM_RXBMS_OFFSET 8 /* RX packet buffer memory size select */
278 #define GEM_RXBMS_SIZE 2
279 #define GEM_TXPBMS_OFFSET 10 /* TX packet buffer memory size select */
280 #define GEM_TXPBMS_SIZE 1
281 #define GEM_TXCOEN_OFFSET 11 /* TX IP/TCP/UDP checksum gen offload */
282 #define GEM_TXCOEN_SIZE 1
283 #define GEM_RXBS_OFFSET 16 /* DMA receive buffer size */
284 #define GEM_RXBS_SIZE 8
285 #define GEM_DDRP_OFFSET 24 /* disc_when_no_ahb */
286 #define GEM_DDRP_SIZE 1
287 #define GEM_RXEXT_OFFSET 28 /* RX extended Buffer Descriptor mode */
288 #define GEM_RXEXT_SIZE 1
289 #define GEM_TXEXT_OFFSET 29 /* TX extended Buffer Descriptor mode */
290 #define GEM_TXEXT_SIZE 1
291 #define GEM_ADDR64_OFFSET 30 /* Address bus width - 64b or 32b */
292 #define GEM_ADDR64_SIZE 1
295 /* Bitfields in NSR */
296 #define MACB_NSR_LINK_OFFSET 0 /* pcs_link_state */
297 #define MACB_NSR_LINK_SIZE 1
298 #define MACB_MDIO_OFFSET 1 /* status of the mdio_in pin */
299 #define MACB_MDIO_SIZE 1
300 #define MACB_IDLE_OFFSET 2 /* The PHY management logic is idle */
301 #define MACB_IDLE_SIZE 1
303 /* Bitfields in TSR */
304 #define MACB_UBR_OFFSET 0 /* Used bit read */
305 #define MACB_UBR_SIZE 1
306 #define MACB_COL_OFFSET 1 /* Collision occurred */
307 #define MACB_COL_SIZE 1
308 #define MACB_TSR_RLE_OFFSET 2 /* Retry limit exceeded */
309 #define MACB_TSR_RLE_SIZE 1
310 #define MACB_TGO_OFFSET 3 /* Transmit go */
311 #define MACB_TGO_SIZE 1
312 #define MACB_BEX_OFFSET 4 /* TX frame corruption due to AHB error */
313 #define MACB_BEX_SIZE 1
314 #define MACB_RM9200_BNQ_OFFSET 4 /* AT91RM9200 only */
315 #define MACB_RM9200_BNQ_SIZE 1 /* AT91RM9200 only */
316 #define MACB_COMP_OFFSET 5 /* Trnasmit complete */
317 #define MACB_COMP_SIZE 1
318 #define MACB_UND_OFFSET 6 /* Trnasmit under run */
319 #define MACB_UND_SIZE 1
321 /* Bitfields in RSR */
322 #define MACB_BNA_OFFSET 0 /* Buffer not available */
323 #define MACB_BNA_SIZE 1
324 #define MACB_REC_OFFSET 1 /* Frame received */
325 #define MACB_REC_SIZE 1
326 #define MACB_OVR_OFFSET 2 /* Receive overrun */
327 #define MACB_OVR_SIZE 1
329 /* Bitfields in ISR/IER/IDR/IMR */
330 #define MACB_MFD_OFFSET 0 /* Management frame sent */
331 #define MACB_MFD_SIZE 1
332 #define MACB_RCOMP_OFFSET 1 /* Receive complete */
333 #define MACB_RCOMP_SIZE 1
334 #define MACB_RXUBR_OFFSET 2 /* RX used bit read */
335 #define MACB_RXUBR_SIZE 1
336 #define MACB_TXUBR_OFFSET 3 /* TX used bit read */
337 #define MACB_TXUBR_SIZE 1
338 #define MACB_ISR_TUND_OFFSET 4 /* Enable TX buffer under run interrupt */
339 #define MACB_ISR_TUND_SIZE 1
340 #define MACB_ISR_RLE_OFFSET 5 /* EN retry exceeded/late coll interrupt */
341 #define MACB_ISR_RLE_SIZE 1
342 #define MACB_TXERR_OFFSET 6 /* EN TX frame corrupt from error interrupt */
343 #define MACB_TXERR_SIZE 1
344 #define MACB_TCOMP_OFFSET 7 /* Enable transmit complete interrupt */
345 #define MACB_TCOMP_SIZE 1
346 #define MACB_ISR_LINK_OFFSET 9 /* Enable link change interrupt */
347 #define MACB_ISR_LINK_SIZE 1
348 #define MACB_ISR_ROVR_OFFSET 10 /* Enable receive overrun interrupt */
349 #define MACB_ISR_ROVR_SIZE 1
350 #define MACB_HRESP_OFFSET 11 /* Enable hrsep not OK interrupt */
351 #define MACB_HRESP_SIZE 1
352 #define MACB_PFR_OFFSET 12 /* Enable pause frame w/ quantum interrupt */
353 #define MACB_PFR_SIZE 1
354 #define MACB_PTZ_OFFSET 13 /* Enable pause time zero interrupt */
355 #define MACB_PTZ_SIZE 1
356 #define MACB_WOL_OFFSET 14 /* Enable wake-on-lan interrupt */
357 #define MACB_WOL_SIZE 1
358 #define MACB_DRQFR_OFFSET 18 /* PTP Delay Request Frame Received */
359 #define MACB_DRQFR_SIZE 1
360 #define MACB_SFR_OFFSET 19 /* PTP Sync Frame Received */
361 #define MACB_SFR_SIZE 1
362 #define MACB_DRQFT_OFFSET 20 /* PTP Delay Request Frame Transmitted */
363 #define MACB_DRQFT_SIZE 1
364 #define MACB_SFT_OFFSET 21 /* PTP Sync Frame Transmitted */
365 #define MACB_SFT_SIZE 1
366 #define MACB_PDRQFR_OFFSET 22 /* PDelay Request Frame Received */
367 #define MACB_PDRQFR_SIZE 1
368 #define MACB_PDRSFR_OFFSET 23 /* PDelay Response Frame Received */
369 #define MACB_PDRSFR_SIZE 1
370 #define MACB_PDRQFT_OFFSET 24 /* PDelay Request Frame Transmitted */
371 #define MACB_PDRQFT_SIZE 1
372 #define MACB_PDRSFT_OFFSET 25 /* PDelay Response Frame Transmitted */
373 #define MACB_PDRSFT_SIZE 1
374 #define MACB_SRI_OFFSET 26 /* TSU Seconds Register Increment */
375 #define MACB_SRI_SIZE 1
377 /* Timer increment fields */
378 #define MACB_TI_CNS_OFFSET 0
379 #define MACB_TI_CNS_SIZE 8
380 #define MACB_TI_ACNS_OFFSET 8
381 #define MACB_TI_ACNS_SIZE 8
382 #define MACB_TI_NIT_OFFSET 16
383 #define MACB_TI_NIT_SIZE 8
385 /* Bitfields in MAN */
386 #define MACB_DATA_OFFSET 0 /* data */
387 #define MACB_DATA_SIZE 16
388 #define MACB_CODE_OFFSET 16 /* Must be written to 10 */
389 #define MACB_CODE_SIZE 2
390 #define MACB_REGA_OFFSET 18 /* Register address */
391 #define MACB_REGA_SIZE 5
392 #define MACB_PHYA_OFFSET 23 /* PHY address */
393 #define MACB_PHYA_SIZE 5
394 #define MACB_RW_OFFSET 28 /* Operation. 10 is read. 01 is write. */
395 #define MACB_RW_SIZE 2
396 #define MACB_SOF_OFFSET 30 /* Must be written to 1 for Clause 22 */
397 #define MACB_SOF_SIZE 2
399 /* Bitfields in USRIO (AVR32) */
400 #define MACB_MII_OFFSET 0
401 #define MACB_MII_SIZE 1
402 #define MACB_EAM_OFFSET 1
403 #define MACB_EAM_SIZE 1
404 #define MACB_TX_PAUSE_OFFSET 2
405 #define MACB_TX_PAUSE_SIZE 1
406 #define MACB_TX_PAUSE_ZERO_OFFSET 3
407 #define MACB_TX_PAUSE_ZERO_SIZE 1
409 /* Bitfields in USRIO (AT91) */
410 #define MACB_RMII_OFFSET 0
411 #define MACB_RMII_SIZE 1
412 #define GEM_RGMII_OFFSET 0 /* GEM gigabit mode */
413 #define GEM_RGMII_SIZE 1
414 #define MACB_CLKEN_OFFSET 1
415 #define MACB_CLKEN_SIZE 1
417 /* Bitfields in WOL */
418 #define MACB_IP_OFFSET 0
419 #define MACB_IP_SIZE 16
420 #define MACB_MAG_OFFSET 16
421 #define MACB_MAG_SIZE 1
422 #define MACB_ARP_OFFSET 17
423 #define MACB_ARP_SIZE 1
424 #define MACB_SA1_OFFSET 18
425 #define MACB_SA1_SIZE 1
426 #define MACB_WOL_MTI_OFFSET 19
427 #define MACB_WOL_MTI_SIZE 1
429 /* Bitfields in MID */
430 #define MACB_IDNUM_OFFSET 16
431 #define MACB_IDNUM_SIZE 12
432 #define MACB_REV_OFFSET 0
433 #define MACB_REV_SIZE 16
435 /* Bitfields in DCFG1. */
436 #define GEM_IRQCOR_OFFSET 23
437 #define GEM_IRQCOR_SIZE 1
438 #define GEM_DBWDEF_OFFSET 25
439 #define GEM_DBWDEF_SIZE 3
441 /* Bitfields in DCFG2. */
442 #define GEM_RX_PKT_BUFF_OFFSET 20
443 #define GEM_RX_PKT_BUFF_SIZE 1
444 #define GEM_TX_PKT_BUFF_OFFSET 21
445 #define GEM_TX_PKT_BUFF_SIZE 1
448 /* Bitfields in DCFG5. */
449 #define GEM_TSU_OFFSET 8
450 #define GEM_TSU_SIZE 1
452 /* Bitfields in DCFG6. */
453 #define GEM_PBUF_LSO_OFFSET 27
454 #define GEM_PBUF_LSO_SIZE 1
455 #define GEM_DAW64_OFFSET 23
456 #define GEM_DAW64_SIZE 1
458 /* Bitfields in TISUBN */
459 #define GEM_SUBNSINCR_OFFSET 0
460 #define GEM_SUBNSINCRL_OFFSET 24
461 #define GEM_SUBNSINCRL_SIZE 8
462 #define GEM_SUBNSINCRH_OFFSET 0
463 #define GEM_SUBNSINCRH_SIZE 16
464 #define GEM_SUBNSINCR_SIZE 24
466 /* Bitfields in TI */
467 #define GEM_NSINCR_OFFSET 0
468 #define GEM_NSINCR_SIZE 8
470 /* Bitfields in TSH */
471 #define GEM_TSH_OFFSET 0 /* TSU timer value (s). MSB [47:32] of seconds timer count */
472 #define GEM_TSH_SIZE 16
474 /* Bitfields in TSL */
475 #define GEM_TSL_OFFSET 0 /* TSU timer value (s). LSB [31:0] of seconds timer count */
476 #define GEM_TSL_SIZE 32
478 /* Bitfields in TN */
479 #define GEM_TN_OFFSET 0 /* TSU timer value (ns) */
480 #define GEM_TN_SIZE 30
482 /* Bitfields in TXBDCTRL */
483 #define GEM_TXTSMODE_OFFSET 4 /* TX Descriptor Timestamp Insertion mode */
484 #define GEM_TXTSMODE_SIZE 2
486 /* Bitfields in RXBDCTRL */
487 #define GEM_RXTSMODE_OFFSET 4 /* RX Descriptor Timestamp Insertion mode */
488 #define GEM_RXTSMODE_SIZE 2
490 /* Transmit DMA buffer descriptor Word 1 */
491 #define GEM_DMA_TXVALID_OFFSET 23 /* timestamp has been captured in the Buffer Descriptor */
492 #define GEM_DMA_TXVALID_SIZE 1
494 /* Receive DMA buffer descriptor Word 0 */
495 #define GEM_DMA_RXVALID_OFFSET 2 /* indicates a valid timestamp in the Buffer Descriptor */
496 #define GEM_DMA_RXVALID_SIZE 1
498 /* DMA buffer descriptor Word 2 (32 bit addressing) or Word 4 (64 bit addressing) */
499 #define GEM_DMA_SECL_OFFSET 30 /* Timestamp seconds[1:0] */
500 #define GEM_DMA_SECL_SIZE 2
501 #define GEM_DMA_NSEC_OFFSET 0 /* Timestamp nanosecs [29:0] */
502 #define GEM_DMA_NSEC_SIZE 30
504 /* DMA buffer descriptor Word 3 (32 bit addressing) or Word 5 (64 bit addressing) */
506 /* New hardware supports 12 bit precision of timestamp in DMA buffer descriptor.
507 * Old hardware supports only 6 bit precision but it is enough for PTP.
508 * Less accuracy is used always instead of checking hardware version.
510 #define GEM_DMA_SECH_OFFSET 0 /* Timestamp seconds[5:2] */
511 #define GEM_DMA_SECH_SIZE 4
512 #define GEM_DMA_SEC_WIDTH (GEM_DMA_SECH_SIZE + GEM_DMA_SECL_SIZE)
513 #define GEM_DMA_SEC_TOP (1 << GEM_DMA_SEC_WIDTH)
514 #define GEM_DMA_SEC_MASK (GEM_DMA_SEC_TOP - 1)
516 /* Bitfields in ADJ */
517 #define GEM_ADDSUB_OFFSET 31
518 #define GEM_ADDSUB_SIZE 1
519 /* Constants for CLK */
520 #define MACB_CLK_DIV8 0
521 #define MACB_CLK_DIV16 1
522 #define MACB_CLK_DIV32 2
523 #define MACB_CLK_DIV64 3
525 /* GEM specific constants for CLK. */
526 #define GEM_CLK_DIV8 0
527 #define GEM_CLK_DIV16 1
528 #define GEM_CLK_DIV32 2
529 #define GEM_CLK_DIV48 3
530 #define GEM_CLK_DIV64 4
531 #define GEM_CLK_DIV96 5
533 /* Constants for MAN register */
534 #define MACB_MAN_SOF 1
535 #define MACB_MAN_WRITE 1
536 #define MACB_MAN_READ 2
537 #define MACB_MAN_CODE 2
539 /* Capability mask bits */
540 #define MACB_CAPS_ISR_CLEAR_ON_WRITE 0x00000001
541 #define MACB_CAPS_USRIO_HAS_CLKEN 0x00000002
542 #define MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII 0x00000004
543 #define MACB_CAPS_NO_GIGABIT_HALF 0x00000008
544 #define MACB_CAPS_USRIO_DISABLED 0x00000010
545 #define MACB_CAPS_JUMBO 0x00000020
546 #define MACB_CAPS_GEM_HAS_PTP 0x00000040
547 #define MACB_CAPS_FIFO_MODE 0x10000000
548 #define MACB_CAPS_GIGABIT_MODE_AVAILABLE 0x20000000
549 #define MACB_CAPS_SG_DISABLED 0x40000000
550 #define MACB_CAPS_MACB_IS_GEM 0x80000000
553 #define MACB_LSO_UFO_ENABLE 0x01
554 #define MACB_LSO_TSO_ENABLE 0x02
556 /* Bit manipulation macros */
557 #define MACB_BIT(name) \
558 (1 << MACB_##name##_OFFSET)
559 #define MACB_BF(name,value) \
560 (((value) & ((1 << MACB_##name##_SIZE) - 1)) \
561 << MACB_##name##_OFFSET)
562 #define MACB_BFEXT(name,value)\
563 (((value) >> MACB_##name##_OFFSET) \
564 & ((1 << MACB_##name##_SIZE) - 1))
565 #define MACB_BFINS(name,value,old) \
566 (((old) & ~(((1 << MACB_##name##_SIZE) - 1) \
567 << MACB_##name##_OFFSET)) \
568 | MACB_BF(name,value))
570 #define GEM_BIT(name) \
571 (1 << GEM_##name##_OFFSET)
572 #define GEM_BF(name, value) \
573 (((value) & ((1 << GEM_##name##_SIZE) - 1)) \
574 << GEM_##name##_OFFSET)
575 #define GEM_BFEXT(name, value)\
576 (((value) >> GEM_##name##_OFFSET) \
577 & ((1 << GEM_##name##_SIZE) - 1))
578 #define GEM_BFINS(name, value, old) \
579 (((old) & ~(((1 << GEM_##name##_SIZE) - 1) \
580 << GEM_##name##_OFFSET)) \
581 | GEM_BF(name, value))
583 /* Register access macros */
584 #define macb_readl(port, reg) (port)->macb_reg_readl((port), MACB_##reg)
585 #define macb_writel(port, reg, value) (port)->macb_reg_writel((port), MACB_##reg, (value))
586 #define gem_readl(port, reg) (port)->macb_reg_readl((port), GEM_##reg)
587 #define gem_writel(port, reg, value) (port)->macb_reg_writel((port), GEM_##reg, (value))
588 #define queue_readl(queue, reg) (queue)->bp->macb_reg_readl((queue)->bp, (queue)->reg)
589 #define queue_writel(queue, reg, value) (queue)->bp->macb_reg_writel((queue)->bp, (queue)->reg, (value))
591 #define PTP_TS_BUFFER_SIZE 128 /* must be power of 2 */
593 /* Conditional GEM/MACB macros. These perform the operation to the correct
594 * register dependent on whether the device is a GEM or a MACB. For registers
595 * and bitfields that are common across both devices, use macb_{read,write}l
596 * to avoid the cost of the conditional.
598 #define macb_or_gem_writel(__bp, __reg, __value) \
600 if (macb_is_gem((__bp))) \
601 gem_writel((__bp), __reg, __value); \
603 macb_writel((__bp), __reg, __value); \
606 #define macb_or_gem_readl(__bp, __reg) \
609 if (macb_is_gem((__bp))) \
610 __v = gem_readl((__bp), __reg); \
612 __v = macb_readl((__bp), __reg); \
616 /* struct macb_dma_desc - Hardware DMA descriptor
617 * @addr: DMA address of data buffer
618 * @ctrl: Control and status bits
620 struct macb_dma_desc {
626 #define HW_DMA_CAP_32B 0
627 #define HW_DMA_CAP_64B (1 << 0)
628 #define HW_DMA_CAP_PTP (1 << 1)
629 #define HW_DMA_CAP_64B_PTP (HW_DMA_CAP_64B | HW_DMA_CAP_PTP)
631 struct macb_dma_desc_64 {
636 struct macb_dma_desc_ptp {
643 struct macb_dma_desc_ptp desc_ptp;
647 /* DMA descriptor bitfields */
648 #define MACB_RX_USED_OFFSET 0
649 #define MACB_RX_USED_SIZE 1
650 #define MACB_RX_WRAP_OFFSET 1
651 #define MACB_RX_WRAP_SIZE 1
652 #define MACB_RX_WADDR_OFFSET 2
653 #define MACB_RX_WADDR_SIZE 30
655 #define MACB_RX_FRMLEN_OFFSET 0
656 #define MACB_RX_FRMLEN_SIZE 12
657 #define MACB_RX_OFFSET_OFFSET 12
658 #define MACB_RX_OFFSET_SIZE 2
659 #define MACB_RX_SOF_OFFSET 14
660 #define MACB_RX_SOF_SIZE 1
661 #define MACB_RX_EOF_OFFSET 15
662 #define MACB_RX_EOF_SIZE 1
663 #define MACB_RX_CFI_OFFSET 16
664 #define MACB_RX_CFI_SIZE 1
665 #define MACB_RX_VLAN_PRI_OFFSET 17
666 #define MACB_RX_VLAN_PRI_SIZE 3
667 #define MACB_RX_PRI_TAG_OFFSET 20
668 #define MACB_RX_PRI_TAG_SIZE 1
669 #define MACB_RX_VLAN_TAG_OFFSET 21
670 #define MACB_RX_VLAN_TAG_SIZE 1
671 #define MACB_RX_TYPEID_MATCH_OFFSET 22
672 #define MACB_RX_TYPEID_MATCH_SIZE 1
673 #define MACB_RX_SA4_MATCH_OFFSET 23
674 #define MACB_RX_SA4_MATCH_SIZE 1
675 #define MACB_RX_SA3_MATCH_OFFSET 24
676 #define MACB_RX_SA3_MATCH_SIZE 1
677 #define MACB_RX_SA2_MATCH_OFFSET 25
678 #define MACB_RX_SA2_MATCH_SIZE 1
679 #define MACB_RX_SA1_MATCH_OFFSET 26
680 #define MACB_RX_SA1_MATCH_SIZE 1
681 #define MACB_RX_EXT_MATCH_OFFSET 28
682 #define MACB_RX_EXT_MATCH_SIZE 1
683 #define MACB_RX_UHASH_MATCH_OFFSET 29
684 #define MACB_RX_UHASH_MATCH_SIZE 1
685 #define MACB_RX_MHASH_MATCH_OFFSET 30
686 #define MACB_RX_MHASH_MATCH_SIZE 1
687 #define MACB_RX_BROADCAST_OFFSET 31
688 #define MACB_RX_BROADCAST_SIZE 1
690 #define MACB_RX_FRMLEN_MASK 0xFFF
691 #define MACB_RX_JFRMLEN_MASK 0x3FFF
693 /* RX checksum offload disabled: bit 24 clear in NCFGR */
694 #define GEM_RX_TYPEID_MATCH_OFFSET 22
695 #define GEM_RX_TYPEID_MATCH_SIZE 2
697 /* RX checksum offload enabled: bit 24 set in NCFGR */
698 #define GEM_RX_CSUM_OFFSET 22
699 #define GEM_RX_CSUM_SIZE 2
701 #define MACB_TX_FRMLEN_OFFSET 0
702 #define MACB_TX_FRMLEN_SIZE 11
703 #define MACB_TX_LAST_OFFSET 15
704 #define MACB_TX_LAST_SIZE 1
705 #define MACB_TX_NOCRC_OFFSET 16
706 #define MACB_TX_NOCRC_SIZE 1
707 #define MACB_MSS_MFS_OFFSET 16
708 #define MACB_MSS_MFS_SIZE 14
709 #define MACB_TX_LSO_OFFSET 17
710 #define MACB_TX_LSO_SIZE 2
711 #define MACB_TX_TCP_SEQ_SRC_OFFSET 19
712 #define MACB_TX_TCP_SEQ_SRC_SIZE 1
713 #define MACB_TX_BUF_EXHAUSTED_OFFSET 27
714 #define MACB_TX_BUF_EXHAUSTED_SIZE 1
715 #define MACB_TX_UNDERRUN_OFFSET 28
716 #define MACB_TX_UNDERRUN_SIZE 1
717 #define MACB_TX_ERROR_OFFSET 29
718 #define MACB_TX_ERROR_SIZE 1
719 #define MACB_TX_WRAP_OFFSET 30
720 #define MACB_TX_WRAP_SIZE 1
721 #define MACB_TX_USED_OFFSET 31
722 #define MACB_TX_USED_SIZE 1
724 #define GEM_TX_FRMLEN_OFFSET 0
725 #define GEM_TX_FRMLEN_SIZE 14
727 /* Buffer descriptor constants */
728 #define GEM_RX_CSUM_NONE 0
729 #define GEM_RX_CSUM_IP_ONLY 1
730 #define GEM_RX_CSUM_IP_TCP 2
731 #define GEM_RX_CSUM_IP_UDP 3
733 /* limit RX checksum offload to TCP and UDP packets */
734 #define GEM_RX_CSUM_CHECKED_MASK 2
736 /* struct macb_tx_skb - data about an skb which is being transmitted
737 * @skb: skb currently being transmitted, only set for the last buffer
739 * @mapping: DMA address of the skb's fragment buffer
740 * @size: size of the DMA mapped buffer
741 * @mapped_as_page: true when buffer was mapped with skb_frag_dma_map(),
742 * false when buffer was mapped with dma_map_single()
751 /* Hardware-collected statistics. Used when updating the network
752 * device stats by a periodic timer.
758 u32 tx_multiple_cols;
764 u32 tx_excessive_cols;
766 u32 tx_carrier_errors;
767 u32 rx_resource_errors;
769 u32 rx_symbol_errors;
770 u32 rx_oversize_pkts;
772 u32 rx_undersize_pkts;
774 u32 rx_length_mismatch;
782 u32 tx_broadcast_frames;
783 u32 tx_multicast_frames;
785 u32 tx_64_byte_frames;
786 u32 tx_65_127_byte_frames;
787 u32 tx_128_255_byte_frames;
788 u32 tx_256_511_byte_frames;
789 u32 tx_512_1023_byte_frames;
790 u32 tx_1024_1518_byte_frames;
791 u32 tx_greater_than_1518_byte_frames;
793 u32 tx_single_collision_frames;
794 u32 tx_multiple_collision_frames;
795 u32 tx_excessive_collisions;
796 u32 tx_late_collisions;
797 u32 tx_deferred_frames;
798 u32 tx_carrier_sense_errors;
802 u32 rx_broadcast_frames;
803 u32 rx_multicast_frames;
805 u32 rx_64_byte_frames;
806 u32 rx_65_127_byte_frames;
807 u32 rx_128_255_byte_frames;
808 u32 rx_256_511_byte_frames;
809 u32 rx_512_1023_byte_frames;
810 u32 rx_1024_1518_byte_frames;
811 u32 rx_greater_than_1518_byte_frames;
812 u32 rx_undersized_frames;
813 u32 rx_oversize_frames;
815 u32 rx_frame_check_sequence_errors;
816 u32 rx_length_field_frame_errors;
817 u32 rx_symbol_errors;
818 u32 rx_alignment_errors;
819 u32 rx_resource_errors;
821 u32 rx_ip_header_checksum_errors;
822 u32 rx_tcp_checksum_errors;
823 u32 rx_udp_checksum_errors;
826 /* Describes the name and offset of an individual statistic register, as
827 * returned by `ethtool -S`. Also describes which net_device_stats statistics
828 * this register should contribute to.
830 struct gem_statistic {
831 char stat_string[ETH_GSTRING_LEN];
836 /* Bitfield defs for net_device_stat statistics */
837 #define GEM_NDS_RXERR_OFFSET 0
838 #define GEM_NDS_RXLENERR_OFFSET 1
839 #define GEM_NDS_RXOVERERR_OFFSET 2
840 #define GEM_NDS_RXCRCERR_OFFSET 3
841 #define GEM_NDS_RXFRAMEERR_OFFSET 4
842 #define GEM_NDS_RXFIFOERR_OFFSET 5
843 #define GEM_NDS_TXERR_OFFSET 6
844 #define GEM_NDS_TXABORTEDERR_OFFSET 7
845 #define GEM_NDS_TXCARRIERERR_OFFSET 8
846 #define GEM_NDS_TXFIFOERR_OFFSET 9
847 #define GEM_NDS_COLLISIONS_OFFSET 10
849 #define GEM_STAT_TITLE(name, title) GEM_STAT_TITLE_BITS(name, title, 0)
850 #define GEM_STAT_TITLE_BITS(name, title, bits) { \
851 .stat_string = title, \
852 .offset = GEM_##name, \
856 /* list of gem statistic registers. The names MUST match the
857 * corresponding GEM_* definitions.
859 static const struct gem_statistic gem_statistics[] = {
860 GEM_STAT_TITLE(OCTTXL, "tx_octets"), /* OCTTXH combined with OCTTXL */
861 GEM_STAT_TITLE(TXCNT, "tx_frames"),
862 GEM_STAT_TITLE(TXBCCNT, "tx_broadcast_frames"),
863 GEM_STAT_TITLE(TXMCCNT, "tx_multicast_frames"),
864 GEM_STAT_TITLE(TXPAUSECNT, "tx_pause_frames"),
865 GEM_STAT_TITLE(TX64CNT, "tx_64_byte_frames"),
866 GEM_STAT_TITLE(TX65CNT, "tx_65_127_byte_frames"),
867 GEM_STAT_TITLE(TX128CNT, "tx_128_255_byte_frames"),
868 GEM_STAT_TITLE(TX256CNT, "tx_256_511_byte_frames"),
869 GEM_STAT_TITLE(TX512CNT, "tx_512_1023_byte_frames"),
870 GEM_STAT_TITLE(TX1024CNT, "tx_1024_1518_byte_frames"),
871 GEM_STAT_TITLE(TX1519CNT, "tx_greater_than_1518_byte_frames"),
872 GEM_STAT_TITLE_BITS(TXURUNCNT, "tx_underrun",
873 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_TXFIFOERR)),
874 GEM_STAT_TITLE_BITS(SNGLCOLLCNT, "tx_single_collision_frames",
875 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
876 GEM_STAT_TITLE_BITS(MULTICOLLCNT, "tx_multiple_collision_frames",
877 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
878 GEM_STAT_TITLE_BITS(EXCESSCOLLCNT, "tx_excessive_collisions",
880 GEM_BIT(NDS_TXABORTEDERR)|
881 GEM_BIT(NDS_COLLISIONS)),
882 GEM_STAT_TITLE_BITS(LATECOLLCNT, "tx_late_collisions",
883 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
884 GEM_STAT_TITLE(TXDEFERCNT, "tx_deferred_frames"),
885 GEM_STAT_TITLE_BITS(TXCSENSECNT, "tx_carrier_sense_errors",
886 GEM_BIT(NDS_TXERR)|GEM_BIT(NDS_COLLISIONS)),
887 GEM_STAT_TITLE(OCTRXL, "rx_octets"), /* OCTRXH combined with OCTRXL */
888 GEM_STAT_TITLE(RXCNT, "rx_frames"),
889 GEM_STAT_TITLE(RXBROADCNT, "rx_broadcast_frames"),
890 GEM_STAT_TITLE(RXMULTICNT, "rx_multicast_frames"),
891 GEM_STAT_TITLE(RXPAUSECNT, "rx_pause_frames"),
892 GEM_STAT_TITLE(RX64CNT, "rx_64_byte_frames"),
893 GEM_STAT_TITLE(RX65CNT, "rx_65_127_byte_frames"),
894 GEM_STAT_TITLE(RX128CNT, "rx_128_255_byte_frames"),
895 GEM_STAT_TITLE(RX256CNT, "rx_256_511_byte_frames"),
896 GEM_STAT_TITLE(RX512CNT, "rx_512_1023_byte_frames"),
897 GEM_STAT_TITLE(RX1024CNT, "rx_1024_1518_byte_frames"),
898 GEM_STAT_TITLE(RX1519CNT, "rx_greater_than_1518_byte_frames"),
899 GEM_STAT_TITLE_BITS(RXUNDRCNT, "rx_undersized_frames",
900 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
901 GEM_STAT_TITLE_BITS(RXOVRCNT, "rx_oversize_frames",
902 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
903 GEM_STAT_TITLE_BITS(RXJABCNT, "rx_jabbers",
904 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXLENERR)),
905 GEM_STAT_TITLE_BITS(RXFCSCNT, "rx_frame_check_sequence_errors",
906 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXCRCERR)),
907 GEM_STAT_TITLE_BITS(RXLENGTHCNT, "rx_length_field_frame_errors",
909 GEM_STAT_TITLE_BITS(RXSYMBCNT, "rx_symbol_errors",
910 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFRAMEERR)),
911 GEM_STAT_TITLE_BITS(RXALIGNCNT, "rx_alignment_errors",
912 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)),
913 GEM_STAT_TITLE_BITS(RXRESERRCNT, "rx_resource_errors",
914 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXOVERERR)),
915 GEM_STAT_TITLE_BITS(RXORCNT, "rx_overruns",
916 GEM_BIT(NDS_RXERR)|GEM_BIT(NDS_RXFIFOERR)),
917 GEM_STAT_TITLE_BITS(RXIPCCNT, "rx_ip_header_checksum_errors",
919 GEM_STAT_TITLE_BITS(RXTCPCCNT, "rx_tcp_checksum_errors",
921 GEM_STAT_TITLE_BITS(RXUDPCCNT, "rx_udp_checksum_errors",
925 #define GEM_STATS_LEN ARRAY_SIZE(gem_statistics)
929 struct macb_or_gem_ops {
930 int (*mog_alloc_rx_buffers)(struct macb *bp);
931 void (*mog_free_rx_buffers)(struct macb *bp);
932 void (*mog_init_rings)(struct macb *bp);
933 int (*mog_rx)(struct macb *bp, int budget);
936 /* MACB-PTP interface: adapt to platform needs. */
937 struct macb_ptp_info {
938 void (*ptp_init)(struct net_device *ndev);
939 void (*ptp_remove)(struct net_device *ndev);
940 s32 (*get_ptp_max_adj)(void);
941 unsigned int (*get_tsu_rate)(struct macb *bp);
942 int (*get_ts_info)(struct net_device *dev,
943 struct ethtool_ts_info *info);
944 int (*get_hwtst)(struct net_device *netdev,
946 int (*set_hwtst)(struct net_device *netdev,
947 struct ifreq *ifr, int cmd);
952 unsigned int dma_burst_length;
953 int (*clk_init)(struct platform_device *pdev, struct clk **pclk,
954 struct clk **hclk, struct clk **tx_clk,
955 struct clk **rx_clk);
956 int (*init)(struct platform_device *pdev);
976 unsigned int tx_head, tx_tail;
977 struct macb_dma_desc *tx_ring;
978 struct macb_tx_skb *tx_skb;
979 dma_addr_t tx_ring_dma;
980 struct work_struct tx_error_task;
982 #ifdef CONFIG_MACB_USE_HWSTAMP
983 struct work_struct tx_ts_task;
984 unsigned int tx_ts_head, tx_ts_tail;
985 struct gem_tx_ts tx_timestamps[PTP_TS_BUFFER_SIZE];
993 /* hardware IO accessors */
994 u32 (*macb_reg_readl)(struct macb *bp, int offset);
995 void (*macb_reg_writel)(struct macb *bp, int offset, u32 value);
997 unsigned int rx_tail;
998 unsigned int rx_prepared_head;
999 struct macb_dma_desc *rx_ring;
1000 struct sk_buff **rx_skbuff;
1002 size_t rx_buffer_size;
1004 unsigned int rx_ring_size;
1005 unsigned int tx_ring_size;
1007 unsigned int num_queues;
1008 unsigned int queue_mask;
1009 struct macb_queue queues[MACB_MAX_QUEUES];
1012 struct platform_device *pdev;
1017 struct net_device *dev;
1018 struct napi_struct napi;
1020 struct macb_stats macb;
1021 struct gem_stats gem;
1024 dma_addr_t rx_ring_dma;
1025 dma_addr_t rx_buffers_dma;
1027 struct macb_or_gem_ops macbgem_ops;
1029 struct mii_bus *mii_bus;
1030 struct device_node *phy_node;
1036 unsigned int dma_burst_length;
1038 phy_interface_t phy_interface;
1039 struct gpio_desc *reset_gpio;
1041 /* AT91RM9200 transmit */
1042 struct sk_buff *skb; /* holds skb until xmit interrupt completes */
1043 dma_addr_t skb_physaddr; /* phys addr from pci_map_single */
1044 int skb_length; /* saved skb length for pci_unmap_single */
1045 unsigned int max_tx_length;
1047 u64 ethtool_stats[GEM_STATS_LEN];
1049 unsigned int rx_frm_len_mask;
1050 unsigned int jumbo_max_len;
1054 struct macb_ptp_info *ptp_info; /* macb-ptp interface */
1055 #ifdef MACB_EXT_DESC
1058 spinlock_t tsu_clk_lock; /* gem tsu clock locking */
1059 unsigned int tsu_rate;
1060 struct ptp_clock *ptp_clock;
1061 struct ptp_clock_info ptp_clock_info;
1062 struct tsu_incr tsu_incr;
1063 struct hwtstamp_config tstamp_config;
1066 #ifdef CONFIG_MACB_USE_HWSTAMP
1067 #define GEM_TSEC_SIZE (GEM_TSH_SIZE + GEM_TSL_SIZE)
1068 #define TSU_SEC_MAX_VAL (((u64)1 << GEM_TSEC_SIZE) - 1)
1069 #define TSU_NSEC_MAX_VAL ((1 << GEM_TN_SIZE) - 1)
1071 enum macb_bd_control {
1073 TSTAMP_FRAME_PTP_EVENT_ONLY,
1074 TSTAMP_ALL_PTP_FRAMES,
1078 void gem_ptp_init(struct net_device *ndev);
1079 void gem_ptp_remove(struct net_device *ndev);
1080 int gem_ptp_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *des);
1081 void gem_ptp_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc);
1082 static inline int gem_ptp_do_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *desc)
1084 if (queue->bp->tstamp_config.tx_type == TSTAMP_DISABLED)
1087 return gem_ptp_txstamp(queue, skb, desc);
1090 static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc)
1092 if (bp->tstamp_config.rx_filter == TSTAMP_DISABLED)
1095 gem_ptp_rxstamp(bp, skb, desc);
1097 int gem_get_hwtst(struct net_device *dev, struct ifreq *rq);
1098 int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd);
1100 static inline void gem_ptp_init(struct net_device *ndev) { }
1101 static inline void gem_ptp_remove(struct net_device *ndev) { }
1103 static inline int gem_ptp_do_txstamp(struct macb_queue *queue, struct sk_buff *skb, struct macb_dma_desc *desc)
1108 static inline void gem_ptp_do_rxstamp(struct macb *bp, struct sk_buff *skb, struct macb_dma_desc *desc) { }
1111 static inline bool macb_is_gem(struct macb *bp)
1113 return !!(bp->caps & MACB_CAPS_MACB_IS_GEM);
1116 static inline bool gem_has_ptp(struct macb *bp)
1118 return !!(bp->caps & MACB_CAPS_GEM_HAS_PTP);
1121 #endif /* _MACB_H */
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