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b4af9a55 FF |
1 | /* |
2 | * Copyright (c) 2014 Broadcom Corporation | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
5e811b39 FF |
7 | */ |
8 | ||
b4af9a55 FF |
9 | #ifndef __BCMGENET_H__ |
10 | #define __BCMGENET_H__ | |
11 | ||
12 | #include <linux/skbuff.h> | |
13 | #include <linux/netdevice.h> | |
14 | #include <linux/spinlock.h> | |
15 | #include <linux/clk.h> | |
16 | #include <linux/mii.h> | |
17 | #include <linux/if_vlan.h> | |
18 | #include <linux/phy.h> | |
19 | ||
20 | /* total number of Buffer Descriptors, same for Rx/Tx */ | |
21 | #define TOTAL_DESC 256 | |
22 | ||
23 | /* which ring is descriptor based */ | |
24 | #define DESC_INDEX 16 | |
25 | ||
26 | /* Body(1500) + EH_SIZE(14) + VLANTAG(4) + BRCMTAG(6) + FCS(4) = 1528. | |
27 | * 1536 is multiple of 256 bytes | |
28 | */ | |
29 | #define ENET_BRCM_TAG_LEN 6 | |
30 | #define ENET_PAD 8 | |
31 | #define ENET_MAX_MTU_SIZE (ETH_DATA_LEN + ETH_HLEN + VLAN_HLEN + \ | |
32 | ENET_BRCM_TAG_LEN + ETH_FCS_LEN + ENET_PAD) | |
33 | #define DMA_MAX_BURST_LENGTH 0x10 | |
34 | ||
35 | /* misc. configuration */ | |
36 | #define CLEAR_ALL_HFB 0xFF | |
37 | #define DMA_FC_THRESH_HI (TOTAL_DESC >> 4) | |
38 | #define DMA_FC_THRESH_LO 5 | |
39 | ||
40 | /* 64B receive/transmit status block */ | |
41 | struct status_64 { | |
42 | u32 length_status; /* length and peripheral status */ | |
43 | u32 ext_status; /* Extended status*/ | |
44 | u32 rx_csum; /* partial rx checksum */ | |
45 | u32 unused1[9]; /* unused */ | |
46 | u32 tx_csum_info; /* Tx checksum info. */ | |
47 | u32 unused2[3]; /* unused */ | |
48 | }; | |
49 | ||
50 | /* Rx status bits */ | |
51 | #define STATUS_RX_EXT_MASK 0x1FFFFF | |
52 | #define STATUS_RX_CSUM_MASK 0xFFFF | |
53 | #define STATUS_RX_CSUM_OK 0x10000 | |
54 | #define STATUS_RX_CSUM_FR 0x20000 | |
55 | #define STATUS_RX_PROTO_TCP 0 | |
56 | #define STATUS_RX_PROTO_UDP 1 | |
57 | #define STATUS_RX_PROTO_ICMP 2 | |
58 | #define STATUS_RX_PROTO_OTHER 3 | |
59 | #define STATUS_RX_PROTO_MASK 3 | |
60 | #define STATUS_RX_PROTO_SHIFT 18 | |
61 | #define STATUS_FILTER_INDEX_MASK 0xFFFF | |
62 | /* Tx status bits */ | |
63 | #define STATUS_TX_CSUM_START_MASK 0X7FFF | |
64 | #define STATUS_TX_CSUM_START_SHIFT 16 | |
65 | #define STATUS_TX_CSUM_PROTO_UDP 0x8000 | |
66 | #define STATUS_TX_CSUM_OFFSET_MASK 0x7FFF | |
67 | #define STATUS_TX_CSUM_LV 0x80000000 | |
68 | ||
69 | /* DMA Descriptor */ | |
70 | #define DMA_DESC_LENGTH_STATUS 0x00 /* in bytes of data in buffer */ | |
71 | #define DMA_DESC_ADDRESS_LO 0x04 /* lower bits of PA */ | |
72 | #define DMA_DESC_ADDRESS_HI 0x08 /* upper 32 bits of PA, GENETv4+ */ | |
73 | ||
74 | /* Rx/Tx common counter group */ | |
75 | struct bcmgenet_pkt_counters { | |
76 | u32 cnt_64; /* RO Received/Transmited 64 bytes packet */ | |
77 | u32 cnt_127; /* RO Rx/Tx 127 bytes packet */ | |
78 | u32 cnt_255; /* RO Rx/Tx 65-255 bytes packet */ | |
79 | u32 cnt_511; /* RO Rx/Tx 256-511 bytes packet */ | |
80 | u32 cnt_1023; /* RO Rx/Tx 512-1023 bytes packet */ | |
81 | u32 cnt_1518; /* RO Rx/Tx 1024-1518 bytes packet */ | |
82 | u32 cnt_mgv; /* RO Rx/Tx 1519-1522 good VLAN packet */ | |
83 | u32 cnt_2047; /* RO Rx/Tx 1522-2047 bytes packet*/ | |
84 | u32 cnt_4095; /* RO Rx/Tx 2048-4095 bytes packet*/ | |
85 | u32 cnt_9216; /* RO Rx/Tx 4096-9216 bytes packet*/ | |
86 | }; | |
87 | ||
88 | /* RSV, Receive Status Vector */ | |
89 | struct bcmgenet_rx_counters { | |
90 | struct bcmgenet_pkt_counters pkt_cnt; | |
91 | u32 pkt; /* RO (0x428) Received pkt count*/ | |
92 | u32 bytes; /* RO Received byte count */ | |
93 | u32 mca; /* RO # of Received multicast pkt */ | |
94 | u32 bca; /* RO # of Receive broadcast pkt */ | |
95 | u32 fcs; /* RO # of Received FCS error */ | |
96 | u32 cf; /* RO # of Received control frame pkt*/ | |
97 | u32 pf; /* RO # of Received pause frame pkt */ | |
98 | u32 uo; /* RO # of unknown op code pkt */ | |
99 | u32 aln; /* RO # of alignment error count */ | |
100 | u32 flr; /* RO # of frame length out of range count */ | |
101 | u32 cde; /* RO # of code error pkt */ | |
102 | u32 fcr; /* RO # of carrier sense error pkt */ | |
103 | u32 ovr; /* RO # of oversize pkt*/ | |
104 | u32 jbr; /* RO # of jabber count */ | |
105 | u32 mtue; /* RO # of MTU error pkt*/ | |
106 | u32 pok; /* RO # of Received good pkt */ | |
107 | u32 uc; /* RO # of unicast pkt */ | |
108 | u32 ppp; /* RO # of PPP pkt */ | |
109 | u32 rcrc; /* RO (0x470),# of CRC match pkt */ | |
110 | }; | |
111 | ||
112 | /* TSV, Transmit Status Vector */ | |
113 | struct bcmgenet_tx_counters { | |
114 | struct bcmgenet_pkt_counters pkt_cnt; | |
115 | u32 pkts; /* RO (0x4a8) Transmited pkt */ | |
116 | u32 mca; /* RO # of xmited multicast pkt */ | |
117 | u32 bca; /* RO # of xmited broadcast pkt */ | |
118 | u32 pf; /* RO # of xmited pause frame count */ | |
119 | u32 cf; /* RO # of xmited control frame count */ | |
120 | u32 fcs; /* RO # of xmited FCS error count */ | |
121 | u32 ovr; /* RO # of xmited oversize pkt */ | |
122 | u32 drf; /* RO # of xmited deferral pkt */ | |
123 | u32 edf; /* RO # of xmited Excessive deferral pkt*/ | |
124 | u32 scl; /* RO # of xmited single collision pkt */ | |
125 | u32 mcl; /* RO # of xmited multiple collision pkt*/ | |
126 | u32 lcl; /* RO # of xmited late collision pkt */ | |
127 | u32 ecl; /* RO # of xmited excessive collision pkt*/ | |
128 | u32 frg; /* RO # of xmited fragments pkt*/ | |
129 | u32 ncl; /* RO # of xmited total collision count */ | |
130 | u32 jbr; /* RO # of xmited jabber count*/ | |
131 | u32 bytes; /* RO # of xmited byte count */ | |
132 | u32 pok; /* RO # of xmited good pkt */ | |
133 | u32 uc; /* RO (0x0x4f0)# of xmited unitcast pkt */ | |
134 | }; | |
135 | ||
136 | struct bcmgenet_mib_counters { | |
137 | struct bcmgenet_rx_counters rx; | |
138 | struct bcmgenet_tx_counters tx; | |
139 | u32 rx_runt_cnt; | |
140 | u32 rx_runt_fcs; | |
141 | u32 rx_runt_fcs_align; | |
142 | u32 rx_runt_bytes; | |
143 | u32 rbuf_ovflow_cnt; | |
144 | u32 rbuf_err_cnt; | |
145 | u32 mdf_err_cnt; | |
44c8bc3c FF |
146 | u32 alloc_rx_buff_failed; |
147 | u32 rx_dma_failed; | |
148 | u32 tx_dma_failed; | |
b4af9a55 FF |
149 | }; |
150 | ||
151 | #define UMAC_HD_BKP_CTRL 0x004 | |
152 | #define HD_FC_EN (1 << 0) | |
153 | #define HD_FC_BKOFF_OK (1 << 1) | |
154 | #define IPG_CONFIG_RX_SHIFT 2 | |
155 | #define IPG_CONFIG_RX_MASK 0x1F | |
156 | ||
157 | #define UMAC_CMD 0x008 | |
158 | #define CMD_TX_EN (1 << 0) | |
159 | #define CMD_RX_EN (1 << 1) | |
160 | #define UMAC_SPEED_10 0 | |
161 | #define UMAC_SPEED_100 1 | |
162 | #define UMAC_SPEED_1000 2 | |
163 | #define UMAC_SPEED_2500 3 | |
164 | #define CMD_SPEED_SHIFT 2 | |
165 | #define CMD_SPEED_MASK 3 | |
166 | #define CMD_PROMISC (1 << 4) | |
167 | #define CMD_PAD_EN (1 << 5) | |
168 | #define CMD_CRC_FWD (1 << 6) | |
169 | #define CMD_PAUSE_FWD (1 << 7) | |
170 | #define CMD_RX_PAUSE_IGNORE (1 << 8) | |
171 | #define CMD_TX_ADDR_INS (1 << 9) | |
172 | #define CMD_HD_EN (1 << 10) | |
173 | #define CMD_SW_RESET (1 << 13) | |
174 | #define CMD_LCL_LOOP_EN (1 << 15) | |
175 | #define CMD_AUTO_CONFIG (1 << 22) | |
176 | #define CMD_CNTL_FRM_EN (1 << 23) | |
177 | #define CMD_NO_LEN_CHK (1 << 24) | |
178 | #define CMD_RMT_LOOP_EN (1 << 25) | |
179 | #define CMD_PRBL_EN (1 << 27) | |
180 | #define CMD_TX_PAUSE_IGNORE (1 << 28) | |
181 | #define CMD_TX_RX_EN (1 << 29) | |
182 | #define CMD_RUNT_FILTER_DIS (1 << 30) | |
183 | ||
184 | #define UMAC_MAC0 0x00C | |
185 | #define UMAC_MAC1 0x010 | |
186 | #define UMAC_MAX_FRAME_LEN 0x014 | |
187 | ||
d0a6db8d FF |
188 | #define UMAC_EEE_CTRL 0x064 |
189 | #define EN_LPI_RX_PAUSE (1 << 0) | |
190 | #define EN_LPI_TX_PFC (1 << 1) | |
191 | #define EN_LPI_TX_PAUSE (1 << 2) | |
192 | #define EEE_EN (1 << 3) | |
193 | #define RX_FIFO_CHECK (1 << 4) | |
194 | #define EEE_TX_CLK_DIS (1 << 5) | |
195 | #define DIS_EEE_10M (1 << 6) | |
196 | #define LP_IDLE_PREDICTION_MODE (1 << 7) | |
197 | ||
198 | #define UMAC_EEE_LPI_TIMER 0x068 | |
199 | #define UMAC_EEE_WAKE_TIMER 0x06C | |
200 | #define UMAC_EEE_REF_COUNT 0x070 | |
201 | #define EEE_REFERENCE_COUNT_MASK 0xffff | |
202 | ||
b4af9a55 FF |
203 | #define UMAC_TX_FLUSH 0x334 |
204 | ||
205 | #define UMAC_MIB_START 0x400 | |
206 | ||
207 | #define UMAC_MDIO_CMD 0x614 | |
208 | #define MDIO_START_BUSY (1 << 29) | |
209 | #define MDIO_READ_FAIL (1 << 28) | |
210 | #define MDIO_RD (2 << 26) | |
211 | #define MDIO_WR (1 << 26) | |
212 | #define MDIO_PMD_SHIFT 21 | |
213 | #define MDIO_PMD_MASK 0x1F | |
214 | #define MDIO_REG_SHIFT 16 | |
215 | #define MDIO_REG_MASK 0x1F | |
216 | ||
217 | #define UMAC_RBUF_OVFL_CNT 0x61C | |
218 | ||
219 | #define UMAC_MPD_CTRL 0x620 | |
220 | #define MPD_EN (1 << 0) | |
221 | #define MPD_PW_EN (1 << 27) | |
222 | #define MPD_MSEQ_LEN_SHIFT 16 | |
223 | #define MPD_MSEQ_LEN_MASK 0xFF | |
224 | ||
225 | #define UMAC_MPD_PW_MS 0x624 | |
226 | #define UMAC_MPD_PW_LS 0x628 | |
227 | #define UMAC_RBUF_ERR_CNT 0x634 | |
228 | #define UMAC_MDF_ERR_CNT 0x638 | |
229 | #define UMAC_MDF_CTRL 0x650 | |
230 | #define UMAC_MDF_ADDR 0x654 | |
231 | #define UMAC_MIB_CTRL 0x580 | |
232 | #define MIB_RESET_RX (1 << 0) | |
233 | #define MIB_RESET_RUNT (1 << 1) | |
234 | #define MIB_RESET_TX (1 << 2) | |
235 | ||
236 | #define RBUF_CTRL 0x00 | |
237 | #define RBUF_64B_EN (1 << 0) | |
238 | #define RBUF_ALIGN_2B (1 << 1) | |
239 | #define RBUF_BAD_DIS (1 << 2) | |
240 | ||
241 | #define RBUF_STATUS 0x0C | |
242 | #define RBUF_STATUS_WOL (1 << 0) | |
243 | #define RBUF_STATUS_MPD_INTR_ACTIVE (1 << 1) | |
244 | #define RBUF_STATUS_ACPI_INTR_ACTIVE (1 << 2) | |
245 | ||
246 | #define RBUF_CHK_CTRL 0x14 | |
247 | #define RBUF_RXCHK_EN (1 << 0) | |
248 | #define RBUF_SKIP_FCS (1 << 4) | |
249 | ||
d0a6db8d FF |
250 | #define RBUF_ENERGY_CTRL 0x9c |
251 | #define RBUF_EEE_EN (1 << 0) | |
252 | #define RBUF_PM_EN (1 << 1) | |
253 | ||
b4af9a55 FF |
254 | #define RBUF_TBUF_SIZE_CTRL 0xb4 |
255 | ||
256 | #define RBUF_HFB_CTRL_V1 0x38 | |
257 | #define RBUF_HFB_FILTER_EN_SHIFT 16 | |
258 | #define RBUF_HFB_FILTER_EN_MASK 0xffff0000 | |
259 | #define RBUF_HFB_EN (1 << 0) | |
260 | #define RBUF_HFB_256B (1 << 1) | |
261 | #define RBUF_ACPI_EN (1 << 2) | |
262 | ||
263 | #define RBUF_HFB_LEN_V1 0x3C | |
264 | #define RBUF_FLTR_LEN_MASK 0xFF | |
265 | #define RBUF_FLTR_LEN_SHIFT 8 | |
266 | ||
267 | #define TBUF_CTRL 0x00 | |
268 | #define TBUF_BP_MC 0x0C | |
d0a6db8d FF |
269 | #define TBUF_ENERGY_CTRL 0x14 |
270 | #define TBUF_EEE_EN (1 << 0) | |
271 | #define TBUF_PM_EN (1 << 1) | |
b4af9a55 FF |
272 | |
273 | #define TBUF_CTRL_V1 0x80 | |
274 | #define TBUF_BP_MC_V1 0xA0 | |
275 | ||
276 | #define HFB_CTRL 0x00 | |
277 | #define HFB_FLT_ENABLE_V3PLUS 0x04 | |
278 | #define HFB_FLT_LEN_V2 0x04 | |
279 | #define HFB_FLT_LEN_V3PLUS 0x1C | |
280 | ||
281 | /* uniMac intrl2 registers */ | |
282 | #define INTRL2_CPU_STAT 0x00 | |
283 | #define INTRL2_CPU_SET 0x04 | |
284 | #define INTRL2_CPU_CLEAR 0x08 | |
285 | #define INTRL2_CPU_MASK_STATUS 0x0C | |
286 | #define INTRL2_CPU_MASK_SET 0x10 | |
287 | #define INTRL2_CPU_MASK_CLEAR 0x14 | |
288 | ||
289 | /* INTRL2 instance 0 definitions */ | |
290 | #define UMAC_IRQ_SCB (1 << 0) | |
291 | #define UMAC_IRQ_EPHY (1 << 1) | |
292 | #define UMAC_IRQ_PHY_DET_R (1 << 2) | |
293 | #define UMAC_IRQ_PHY_DET_F (1 << 3) | |
294 | #define UMAC_IRQ_LINK_UP (1 << 4) | |
295 | #define UMAC_IRQ_LINK_DOWN (1 << 5) | |
296 | #define UMAC_IRQ_UMAC (1 << 6) | |
297 | #define UMAC_IRQ_UMAC_TSV (1 << 7) | |
298 | #define UMAC_IRQ_TBUF_UNDERRUN (1 << 8) | |
299 | #define UMAC_IRQ_RBUF_OVERFLOW (1 << 9) | |
300 | #define UMAC_IRQ_HFB_SM (1 << 10) | |
301 | #define UMAC_IRQ_HFB_MM (1 << 11) | |
302 | #define UMAC_IRQ_MPD_R (1 << 12) | |
303 | #define UMAC_IRQ_RXDMA_MBDONE (1 << 13) | |
304 | #define UMAC_IRQ_RXDMA_PDONE (1 << 14) | |
305 | #define UMAC_IRQ_RXDMA_BDONE (1 << 15) | |
306 | #define UMAC_IRQ_TXDMA_MBDONE (1 << 16) | |
307 | #define UMAC_IRQ_TXDMA_PDONE (1 << 17) | |
308 | #define UMAC_IRQ_TXDMA_BDONE (1 << 18) | |
309 | /* Only valid for GENETv3+ */ | |
310 | #define UMAC_IRQ_MDIO_DONE (1 << 23) | |
311 | #define UMAC_IRQ_MDIO_ERROR (1 << 24) | |
312 | ||
313 | /* Register block offsets */ | |
314 | #define GENET_SYS_OFF 0x0000 | |
315 | #define GENET_GR_BRIDGE_OFF 0x0040 | |
316 | #define GENET_EXT_OFF 0x0080 | |
317 | #define GENET_INTRL2_0_OFF 0x0200 | |
318 | #define GENET_INTRL2_1_OFF 0x0240 | |
319 | #define GENET_RBUF_OFF 0x0300 | |
320 | #define GENET_UMAC_OFF 0x0800 | |
321 | ||
322 | /* SYS block offsets and register definitions */ | |
323 | #define SYS_REV_CTRL 0x00 | |
324 | #define SYS_PORT_CTRL 0x04 | |
325 | #define PORT_MODE_INT_EPHY 0 | |
326 | #define PORT_MODE_INT_GPHY 1 | |
327 | #define PORT_MODE_EXT_EPHY 2 | |
328 | #define PORT_MODE_EXT_GPHY 3 | |
329 | #define PORT_MODE_EXT_RVMII_25 (4 | BIT(4)) | |
330 | #define PORT_MODE_EXT_RVMII_50 4 | |
331 | #define LED_ACT_SOURCE_MAC (1 << 9) | |
332 | ||
333 | #define SYS_RBUF_FLUSH_CTRL 0x08 | |
334 | #define SYS_TBUF_FLUSH_CTRL 0x0C | |
335 | #define RBUF_FLUSH_CTRL_V1 0x04 | |
336 | ||
337 | /* Ext block register offsets and definitions */ | |
338 | #define EXT_EXT_PWR_MGMT 0x00 | |
339 | #define EXT_PWR_DOWN_BIAS (1 << 0) | |
340 | #define EXT_PWR_DOWN_DLL (1 << 1) | |
341 | #define EXT_PWR_DOWN_PHY (1 << 2) | |
342 | #define EXT_PWR_DN_EN_LD (1 << 3) | |
343 | #define EXT_ENERGY_DET (1 << 4) | |
344 | #define EXT_IDDQ_FROM_PHY (1 << 5) | |
345 | #define EXT_PHY_RESET (1 << 8) | |
346 | #define EXT_ENERGY_DET_MASK (1 << 12) | |
347 | ||
348 | #define EXT_RGMII_OOB_CTRL 0x0C | |
b4af9a55 FF |
349 | #define RGMII_LINK (1 << 4) |
350 | #define OOB_DISABLE (1 << 5) | |
5a680fad | 351 | #define RGMII_MODE_EN (1 << 6) |
b4af9a55 FF |
352 | #define ID_MODE_DIS (1 << 16) |
353 | ||
354 | #define EXT_GPHY_CTRL 0x1C | |
355 | #define EXT_CFG_IDDQ_BIAS (1 << 0) | |
356 | #define EXT_CFG_PWR_DOWN (1 << 1) | |
357 | #define EXT_GPHY_RESET (1 << 5) | |
358 | ||
359 | /* DMA rings size */ | |
360 | #define DMA_RING_SIZE (0x40) | |
361 | #define DMA_RINGS_SIZE (DMA_RING_SIZE * (DESC_INDEX + 1)) | |
362 | ||
363 | /* DMA registers common definitions */ | |
364 | #define DMA_RW_POINTER_MASK 0x1FF | |
365 | #define DMA_P_INDEX_DISCARD_CNT_MASK 0xFFFF | |
366 | #define DMA_P_INDEX_DISCARD_CNT_SHIFT 16 | |
367 | #define DMA_BUFFER_DONE_CNT_MASK 0xFFFF | |
368 | #define DMA_BUFFER_DONE_CNT_SHIFT 16 | |
369 | #define DMA_P_INDEX_MASK 0xFFFF | |
370 | #define DMA_C_INDEX_MASK 0xFFFF | |
371 | ||
372 | /* DMA ring size register */ | |
373 | #define DMA_RING_SIZE_MASK 0xFFFF | |
374 | #define DMA_RING_SIZE_SHIFT 16 | |
375 | #define DMA_RING_BUFFER_SIZE_MASK 0xFFFF | |
376 | ||
377 | /* DMA interrupt threshold register */ | |
378 | #define DMA_INTR_THRESHOLD_MASK 0x00FF | |
379 | ||
380 | /* DMA XON/XOFF register */ | |
381 | #define DMA_XON_THREHOLD_MASK 0xFFFF | |
382 | #define DMA_XOFF_THRESHOLD_MASK 0xFFFF | |
383 | #define DMA_XOFF_THRESHOLD_SHIFT 16 | |
384 | ||
385 | /* DMA flow period register */ | |
386 | #define DMA_FLOW_PERIOD_MASK 0xFFFF | |
387 | #define DMA_MAX_PKT_SIZE_MASK 0xFFFF | |
388 | #define DMA_MAX_PKT_SIZE_SHIFT 16 | |
389 | ||
390 | ||
391 | /* DMA control register */ | |
392 | #define DMA_EN (1 << 0) | |
393 | #define DMA_RING_BUF_EN_SHIFT 0x01 | |
394 | #define DMA_RING_BUF_EN_MASK 0xFFFF | |
395 | #define DMA_TSB_SWAP_EN (1 << 20) | |
396 | ||
397 | /* DMA status register */ | |
398 | #define DMA_DISABLED (1 << 0) | |
399 | #define DMA_DESC_RAM_INIT_BUSY (1 << 1) | |
400 | ||
401 | /* DMA SCB burst size register */ | |
402 | #define DMA_SCB_BURST_SIZE_MASK 0x1F | |
403 | ||
404 | /* DMA activity vector register */ | |
405 | #define DMA_ACTIVITY_VECTOR_MASK 0x1FFFF | |
406 | ||
407 | /* DMA backpressure mask register */ | |
408 | #define DMA_BACKPRESSURE_MASK 0x1FFFF | |
409 | #define DMA_PFC_ENABLE (1 << 31) | |
410 | ||
411 | /* DMA backpressure status register */ | |
412 | #define DMA_BACKPRESSURE_STATUS_MASK 0x1FFFF | |
413 | ||
414 | /* DMA override register */ | |
415 | #define DMA_LITTLE_ENDIAN_MODE (1 << 0) | |
416 | #define DMA_REGISTER_MODE (1 << 1) | |
417 | ||
418 | /* DMA timeout register */ | |
419 | #define DMA_TIMEOUT_MASK 0xFFFF | |
420 | #define DMA_TIMEOUT_VAL 5000 /* micro seconds */ | |
421 | ||
422 | /* TDMA rate limiting control register */ | |
423 | #define DMA_RATE_LIMIT_EN_MASK 0xFFFF | |
424 | ||
425 | /* TDMA arbitration control register */ | |
426 | #define DMA_ARBITER_MODE_MASK 0x03 | |
427 | #define DMA_RING_BUF_PRIORITY_MASK 0x1F | |
428 | #define DMA_RING_BUF_PRIORITY_SHIFT 5 | |
37742166 PG |
429 | #define DMA_PRIO_REG_INDEX(q) ((q) / 6) |
430 | #define DMA_PRIO_REG_SHIFT(q) (((q) % 6) * DMA_RING_BUF_PRIORITY_SHIFT) | |
b4af9a55 FF |
431 | #define DMA_RATE_ADJ_MASK 0xFF |
432 | ||
433 | /* Tx/Rx Dma Descriptor common bits*/ | |
434 | #define DMA_BUFLENGTH_MASK 0x0fff | |
435 | #define DMA_BUFLENGTH_SHIFT 16 | |
436 | #define DMA_OWN 0x8000 | |
437 | #define DMA_EOP 0x4000 | |
438 | #define DMA_SOP 0x2000 | |
439 | #define DMA_WRAP 0x1000 | |
440 | /* Tx specific Dma descriptor bits */ | |
441 | #define DMA_TX_UNDERRUN 0x0200 | |
442 | #define DMA_TX_APPEND_CRC 0x0040 | |
443 | #define DMA_TX_OW_CRC 0x0020 | |
444 | #define DMA_TX_DO_CSUM 0x0010 | |
445 | #define DMA_TX_QTAG_SHIFT 7 | |
446 | ||
447 | /* Rx Specific Dma descriptor bits */ | |
448 | #define DMA_RX_CHK_V3PLUS 0x8000 | |
449 | #define DMA_RX_CHK_V12 0x1000 | |
450 | #define DMA_RX_BRDCAST 0x0040 | |
451 | #define DMA_RX_MULT 0x0020 | |
452 | #define DMA_RX_LG 0x0010 | |
453 | #define DMA_RX_NO 0x0008 | |
454 | #define DMA_RX_RXER 0x0004 | |
455 | #define DMA_RX_CRC_ERROR 0x0002 | |
456 | #define DMA_RX_OV 0x0001 | |
457 | #define DMA_RX_FI_MASK 0x001F | |
458 | #define DMA_RX_FI_SHIFT 0x0007 | |
459 | #define DMA_DESC_ALLOC_MASK 0x00FF | |
460 | ||
461 | #define DMA_ARBITER_RR 0x00 | |
462 | #define DMA_ARBITER_WRR 0x01 | |
463 | #define DMA_ARBITER_SP 0x02 | |
464 | ||
465 | struct enet_cb { | |
466 | struct sk_buff *skb; | |
467 | void __iomem *bd_addr; | |
468 | DEFINE_DMA_UNMAP_ADDR(dma_addr); | |
469 | DEFINE_DMA_UNMAP_LEN(dma_len); | |
470 | }; | |
471 | ||
472 | /* power management mode */ | |
473 | enum bcmgenet_power_mode { | |
474 | GENET_POWER_CABLE_SENSE = 0, | |
475 | GENET_POWER_PASSIVE, | |
c51de7f3 | 476 | GENET_POWER_WOL_MAGIC, |
b4af9a55 FF |
477 | }; |
478 | ||
479 | struct bcmgenet_priv; | |
480 | ||
481 | /* We support both runtime GENET detection and compile-time | |
482 | * to optimize code-paths for a given hardware | |
483 | */ | |
484 | enum bcmgenet_version { | |
485 | GENET_V1 = 1, | |
486 | GENET_V2, | |
487 | GENET_V3, | |
488 | GENET_V4 | |
489 | }; | |
490 | ||
491 | #define GENET_IS_V1(p) ((p)->version == GENET_V1) | |
492 | #define GENET_IS_V2(p) ((p)->version == GENET_V2) | |
493 | #define GENET_IS_V3(p) ((p)->version == GENET_V3) | |
494 | #define GENET_IS_V4(p) ((p)->version == GENET_V4) | |
495 | ||
496 | /* Hardware flags */ | |
497 | #define GENET_HAS_40BITS (1 << 0) | |
498 | #define GENET_HAS_EXT (1 << 1) | |
499 | #define GENET_HAS_MDIO_INTR (1 << 2) | |
500 | ||
501 | /* BCMGENET hardware parameters, keep this structure nicely aligned | |
502 | * since it is going to be used in hot paths | |
503 | */ | |
504 | struct bcmgenet_hw_params { | |
505 | u8 tx_queues; | |
506 | u8 rx_queues; | |
507 | u8 bds_cnt; | |
508 | u8 bp_in_en_shift; | |
509 | u32 bp_in_mask; | |
510 | u8 hfb_filter_cnt; | |
511 | u8 qtag_mask; | |
512 | u16 tbuf_offset; | |
513 | u32 hfb_offset; | |
514 | u32 hfb_reg_offset; | |
515 | u32 rdma_offset; | |
516 | u32 tdma_offset; | |
517 | u32 words_per_bd; | |
518 | u32 flags; | |
519 | }; | |
520 | ||
521 | struct bcmgenet_tx_ring { | |
522 | spinlock_t lock; /* ring lock */ | |
523 | unsigned int index; /* ring index */ | |
524 | unsigned int queue; /* queue index */ | |
525 | struct enet_cb *cbs; /* tx ring buffer control block*/ | |
526 | unsigned int size; /* size of each tx ring */ | |
527 | unsigned int c_index; /* last consumer index of each ring*/ | |
528 | unsigned int free_bds; /* # of free bds for each ring */ | |
529 | unsigned int write_ptr; /* Tx ring write pointer SW copy */ | |
530 | unsigned int prod_index; /* Tx ring producer index SW copy */ | |
531 | unsigned int cb_ptr; /* Tx ring initial CB ptr */ | |
532 | unsigned int end_ptr; /* Tx ring end CB ptr */ | |
533 | void (*int_enable)(struct bcmgenet_priv *priv, | |
c91b7f66 | 534 | struct bcmgenet_tx_ring *); |
b4af9a55 | 535 | void (*int_disable)(struct bcmgenet_priv *priv, |
c91b7f66 | 536 | struct bcmgenet_tx_ring *); |
b4af9a55 FF |
537 | }; |
538 | ||
539 | /* device context */ | |
540 | struct bcmgenet_priv { | |
541 | void __iomem *base; | |
542 | enum bcmgenet_version version; | |
543 | struct net_device *dev; | |
b4af9a55 FF |
544 | u32 int0_mask; |
545 | u32 int1_mask; | |
546 | ||
547 | /* NAPI for descriptor based rx */ | |
548 | struct napi_struct napi ____cacheline_aligned; | |
549 | ||
550 | /* transmit variables */ | |
551 | void __iomem *tx_bds; | |
552 | struct enet_cb *tx_cbs; | |
553 | unsigned int num_tx_bds; | |
554 | ||
555 | struct bcmgenet_tx_ring tx_rings[DESC_INDEX + 1]; | |
556 | ||
557 | /* receive variables */ | |
558 | void __iomem *rx_bds; | |
559 | void __iomem *rx_bd_assign_ptr; | |
560 | int rx_bd_assign_index; | |
561 | struct enet_cb *rx_cbs; | |
562 | unsigned int num_rx_bds; | |
563 | unsigned int rx_buf_len; | |
564 | unsigned int rx_read_ptr; | |
565 | unsigned int rx_c_index; | |
566 | ||
567 | /* other misc variables */ | |
568 | struct bcmgenet_hw_params *hw_params; | |
569 | ||
570 | /* MDIO bus variables */ | |
571 | wait_queue_head_t wq; | |
572 | struct phy_device *phydev; | |
573 | struct device_node *phy_dn; | |
574 | struct mii_bus *mii_bus; | |
487320c5 | 575 | u16 gphy_rev; |
6ef398ea FF |
576 | struct clk *clk_eee; |
577 | bool clk_eee_enabled; | |
b4af9a55 FF |
578 | |
579 | /* PHY device variables */ | |
b4af9a55 | 580 | int old_link; |
5ad6e6c5 PG |
581 | int old_speed; |
582 | int old_duplex; | |
b4af9a55 FF |
583 | int old_pause; |
584 | phy_interface_t phy_interface; | |
585 | int phy_addr; | |
586 | int ext_phy; | |
587 | ||
588 | /* Interrupt variables */ | |
589 | struct work_struct bcmgenet_irq_work; | |
590 | int irq0; | |
591 | int irq1; | |
592 | unsigned int irq0_stat; | |
593 | unsigned int irq1_stat; | |
8562056f FF |
594 | int wol_irq; |
595 | bool wol_irq_disabled; | |
b4af9a55 FF |
596 | |
597 | /* HW descriptors/checksum variables */ | |
598 | bool desc_64b_en; | |
599 | bool desc_rxchk_en; | |
600 | bool crc_fwd_en; | |
601 | ||
602 | unsigned int dma_rx_chk_bit; | |
603 | ||
604 | u32 msg_enable; | |
605 | ||
606 | struct clk *clk; | |
607 | struct platform_device *pdev; | |
608 | ||
609 | /* WOL */ | |
b4af9a55 FF |
610 | struct clk *clk_wol; |
611 | u32 wolopts; | |
612 | ||
613 | struct bcmgenet_mib_counters mib; | |
6ef398ea FF |
614 | |
615 | struct ethtool_eee eee; | |
b4af9a55 FF |
616 | }; |
617 | ||
618 | #define GENET_IO_MACRO(name, offset) \ | |
619 | static inline u32 bcmgenet_##name##_readl(struct bcmgenet_priv *priv, \ | |
620 | u32 off) \ | |
621 | { \ | |
622 | return __raw_readl(priv->base + offset + off); \ | |
623 | } \ | |
624 | static inline void bcmgenet_##name##_writel(struct bcmgenet_priv *priv, \ | |
625 | u32 val, u32 off) \ | |
626 | { \ | |
627 | __raw_writel(val, priv->base + offset + off); \ | |
628 | } | |
629 | ||
630 | GENET_IO_MACRO(ext, GENET_EXT_OFF); | |
631 | GENET_IO_MACRO(umac, GENET_UMAC_OFF); | |
632 | GENET_IO_MACRO(sys, GENET_SYS_OFF); | |
633 | ||
634 | /* interrupt l2 registers accessors */ | |
635 | GENET_IO_MACRO(intrl2_0, GENET_INTRL2_0_OFF); | |
636 | GENET_IO_MACRO(intrl2_1, GENET_INTRL2_1_OFF); | |
637 | ||
638 | /* HFB register accessors */ | |
639 | GENET_IO_MACRO(hfb, priv->hw_params->hfb_offset); | |
640 | ||
641 | /* GENET v2+ HFB control and filter len helpers */ | |
642 | GENET_IO_MACRO(hfb_reg, priv->hw_params->hfb_reg_offset); | |
643 | ||
644 | /* RBUF register accessors */ | |
645 | GENET_IO_MACRO(rbuf, GENET_RBUF_OFF); | |
646 | ||
647 | /* MDIO routines */ | |
648 | int bcmgenet_mii_init(struct net_device *dev); | |
dbd479db | 649 | int bcmgenet_mii_config(struct net_device *dev, bool init); |
b4af9a55 FF |
650 | void bcmgenet_mii_exit(struct net_device *dev); |
651 | void bcmgenet_mii_reset(struct net_device *dev); | |
c96e731c | 652 | void bcmgenet_mii_setup(struct net_device *dev); |
b4af9a55 | 653 | |
c51de7f3 FF |
654 | /* Wake-on-LAN routines */ |
655 | void bcmgenet_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol); | |
656 | int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol); | |
657 | int bcmgenet_wol_power_down_cfg(struct bcmgenet_priv *priv, | |
658 | enum bcmgenet_power_mode mode); | |
659 | void bcmgenet_wol_power_up_cfg(struct bcmgenet_priv *priv, | |
660 | enum bcmgenet_power_mode mode); | |
661 | ||
b4af9a55 | 662 | #endif /* __BCMGENET_H__ */ |