1 /*
2  * Copyright 2008-2012 Freescale Semiconductor Inc.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *     * Redistributions of source code must retain the above copyright
7  *       notice, this list of conditions and the following disclaimer.
8  *     * Redistributions in binary form must reproduce the above copyright
9  *       notice, this list of conditions and the following disclaimer in the
10  *       documentation and/or other materials provided with the distribution.
11  *     * Neither the name of Freescale Semiconductor nor the
12  *       names of its contributors may be used to endorse or promote products
13  *       derived from this software without specific prior written permission.
14  *
15  *
16  * ALTERNATIVELY, this software may be distributed under the terms of the
17  * GNU General Public License ("GPL") as published by the Free Software
18  * Foundation, either version 2 of that License or (at your option) any
19  * later version.
20  *
21  * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
22  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
23  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
24  * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
25  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
26  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
28  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 
34 #ifndef __FSL_FMAN_MEMAC_H
35 #define __FSL_FMAN_MEMAC_H
36 
37 #include "common/general.h"
38 #include "fsl_enet.h"
39 
40 
41 #define MEMAC_NUM_OF_PADDRS 7 /* Num of additional exact match MAC adr regs */
42 
43 /* Control and Configuration Register (COMMAND_CONFIG) */
44 #define CMD_CFG_MG		0x80000000 /* 00 Magic Packet detection */
45 #define CMD_CFG_REG_LOWP_RXETY	0x01000000 /* 07 Rx low power indication */
46 #define CMD_CFG_TX_LOWP_ENA	0x00800000 /* 08 Tx Low Power Idle Enable */
47 #define CMD_CFG_SFD_ANY		0x00200000 /* 10 Disable SFD check */
48 #define CMD_CFG_PFC_MODE	0x00080000 /* 12 Enable PFC */
49 #define CMD_CFG_NO_LEN_CHK	0x00020000 /* 14 Payload length check disable */
50 #define CMD_CFG_SEND_IDLE	0x00010000 /* 15 Force idle generation */
51 #define CMD_CFG_CNT_FRM_EN	0x00002000 /* 18 Control frame rx enable */
52 #define CMD_CFG_SW_RESET	0x00001000 /* 19 S/W Reset, self clearing bit */
53 #define CMD_CFG_TX_PAD_EN	0x00000800 /* 20 Enable Tx padding of frames */
54 #define CMD_CFG_LOOPBACK_EN	0x00000400 /* 21 XGMII/GMII loopback enable */
55 #define CMD_CFG_TX_ADDR_INS	0x00000200 /* 22 Tx source MAC addr insertion */
56 #define CMD_CFG_PAUSE_IGNORE	0x00000100 /* 23 Ignore Pause frame quanta */
57 #define CMD_CFG_PAUSE_FWD	0x00000080 /* 24 Terminate/frwd Pause frames */
58 #define CMD_CFG_CRC_FWD		0x00000040 /* 25 Terminate/frwd CRC of frames */
59 #define CMD_CFG_PAD_EN		0x00000020 /* 26 Frame padding removal */
60 #define CMD_CFG_PROMIS_EN	0x00000010 /* 27 Promiscuous operation enable */
61 #define CMD_CFG_WAN_MODE	0x00000008 /* 28 WAN mode enable */
62 #define CMD_CFG_RX_EN		0x00000002 /* 30 MAC receive path enable */
63 #define CMD_CFG_TX_EN		0x00000001 /* 31 MAC transmit path enable */
64 
65 /* Transmit FIFO Sections Register (TX_FIFO_SECTIONS) */
66 #define TX_FIFO_SECTIONS_TX_EMPTY_MASK			0xFFFF0000
67 #define TX_FIFO_SECTIONS_TX_AVAIL_MASK			0x0000FFFF
68 #define TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_10G	0x00400000
69 #define TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_1G	0x00100000
70 #define TX_FIFO_SECTIONS_TX_EMPTY_PFC_10G		0x00360000
71 #define TX_FIFO_SECTIONS_TX_EMPTY_PFC_1G		0x00040000
72 #define TX_FIFO_SECTIONS_TX_AVAIL_10G			0x00000019
73 #define TX_FIFO_SECTIONS_TX_AVAIL_1G			0x00000020
74 #define TX_FIFO_SECTIONS_TX_AVAIL_SLOW_10G		0x00000060
75 
76 #define GET_TX_EMPTY_DEFAULT_VALUE(_val)					\
77 _val &= ~TX_FIFO_SECTIONS_TX_EMPTY_MASK;					\
78 ((_val == TX_FIFO_SECTIONS_TX_AVAIL_10G) ?					\
79 		(_val |= TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_10G) :	\
80 		(_val |= TX_FIFO_SECTIONS_TX_EMPTY_DEFAULT_1G));
81 
82 #define GET_TX_EMPTY_PFC_VALUE(_val)						\
83 _val &= ~TX_FIFO_SECTIONS_TX_EMPTY_MASK;					\
84 ((_val == TX_FIFO_SECTIONS_TX_AVAIL_10G) ?					\
85 		(_val |= TX_FIFO_SECTIONS_TX_EMPTY_PFC_10G) :		\
86 		(_val |= TX_FIFO_SECTIONS_TX_EMPTY_PFC_1G));
87 
88 /* Interface Mode Register (IF_MODE) */
89 #define IF_MODE_MASK		0x00000003 /* 30-31 Mask on i/f mode bits */
90 #define IF_MODE_XGMII		0x00000000 /* 30-31 XGMII (10G) interface */
91 #define IF_MODE_GMII		0x00000002 /* 30-31 GMII (1G) interface */
92 #define IF_MODE_RGMII		0x00000004
93 #define IF_MODE_RGMII_AUTO	0x00008000
94 #define IF_MODE_RGMII_1000  0x00004000 /* 10 - 1000Mbps RGMII */
95 #define IF_MODE_RGMII_100   0x00000000 /* 00 - 100Mbps RGMII */
96 #define IF_MODE_RGMII_10    0x00002000 /* 01 - 10Mbps RGMII */
97 #define IF_MODE_RGMII_SP_MASK 0x00006000 /* Setsp mask bits */
98 #define IF_MODE_RGMII_FD    0x00001000 /* Full duplex RGMII */
99 #define IF_MODE_HD          0x00000040 /* Half duplex operation */
100 
101 /* Hash table Control Register (HASHTABLE_CTRL) */
102 #define HASH_CTRL_MCAST_SHIFT	26
103 #define HASH_CTRL_MCAST_EN	0x00000100 /* 23 Mcast frame rx for hash */
104 #define HASH_CTRL_ADDR_MASK	0x0000003F /* 26-31 Hash table address code */
105 
106 #define GROUP_ADDRESS		0x0000010000000000LL /* MAC mcast indication */
107 #define HASH_TABLE_SIZE		64 /* Hash tbl size */
108 
109 /* Transmit Inter-Packet Gap Length Register (TX_IPG_LENGTH) */
110 #define MEMAC_TX_IPG_LENGTH_MASK	0x0000003F
111 
112 /* Statistics Configuration Register (STATN_CONFIG) */
113 #define STATS_CFG_CLR		0x00000004 /* 29 Reset all counters */
114 #define STATS_CFG_CLR_ON_RD	0x00000002 /* 30 Clear on read */
115 #define STATS_CFG_SATURATE	0x00000001 /* 31 Saturate at the maximum val */
116 
117 /* Interrupt Mask Register (IMASK) */
118 #define MEMAC_IMASK_MGI		0x40000000 /* 1 Magic pkt detect indication */
119 #define MEMAC_IMASK_TSECC_ER 0x20000000 /* 2 Timestamp FIFO ECC error evnt */
120 #define MEMAC_IMASK_TECC_ER	0x02000000 /* 6 Transmit frame ECC error evnt */
121 #define MEMAC_IMASK_RECC_ER	0x01000000 /* 7 Receive frame ECC error evnt */
122 
123 #define MEMAC_ALL_ERRS_IMASK			\
124 		((uint32_t)(MEMAC_IMASK_TSECC_ER	| \
125 			MEMAC_IMASK_TECC_ER	| \
126 			MEMAC_IMASK_RECC_ER	| \
127 			MEMAC_IMASK_MGI))
128 
129 #define MEMAC_IEVNT_PCS			0x80000000 /* PCS (XG). Link sync (G) */
130 #define MEMAC_IEVNT_AN			0x40000000 /* Auto-negotiation */
131 #define MEMAC_IEVNT_LT			0x20000000 /* Link Training/New page */
132 #define MEMAC_IEVNT_MGI			0x00004000 /* Magic pkt detection */
133 #define MEMAC_IEVNT_TS_ECC_ER   0x00002000 /* Timestamp FIFO ECC error */
134 #define MEMAC_IEVNT_RX_FIFO_OVFL	0x00001000 /* Rx FIFO overflow */
135 #define MEMAC_IEVNT_TX_FIFO_UNFL	0x00000800 /* Tx FIFO underflow */
136 #define MEMAC_IEVNT_TX_FIFO_OVFL	0x00000400 /* Tx FIFO overflow */
137 #define MEMAC_IEVNT_TX_ECC_ER		0x00000200 /* Tx frame ECC error */
138 #define MEMAC_IEVNT_RX_ECC_ER		0x00000100 /* Rx frame ECC error */
139 #define MEMAC_IEVNT_LI_FAULT		0x00000080 /* Link Interruption flt */
140 #define MEMAC_IEVNT_RX_EMPTY		0x00000040 /* Rx FIFO empty */
141 #define MEMAC_IEVNT_TX_EMPTY		0x00000020 /* Tx FIFO empty */
142 #define MEMAC_IEVNT_RX_LOWP		0x00000010 /* Low Power Idle */
143 #define MEMAC_IEVNT_PHY_LOS		0x00000004 /* Phy loss of signal */
144 #define MEMAC_IEVNT_REM_FAULT		0x00000002 /* Remote fault (XGMII) */
145 #define MEMAC_IEVNT_LOC_FAULT		0x00000001 /* Local fault (XGMII) */
146 
147 enum memac_counters {
148 	E_MEMAC_COUNTER_R64,
149 	E_MEMAC_COUNTER_R127,
150 	E_MEMAC_COUNTER_R255,
151 	E_MEMAC_COUNTER_R511,
152 	E_MEMAC_COUNTER_R1023,
153 	E_MEMAC_COUNTER_R1518,
154 	E_MEMAC_COUNTER_R1519X,
155 	E_MEMAC_COUNTER_RFRG,
156 	E_MEMAC_COUNTER_RJBR,
157 	E_MEMAC_COUNTER_RDRP,
158 	E_MEMAC_COUNTER_RALN,
159 	E_MEMAC_COUNTER_TUND,
160 	E_MEMAC_COUNTER_ROVR,
161 	E_MEMAC_COUNTER_RXPF,
162 	E_MEMAC_COUNTER_TXPF,
163 	E_MEMAC_COUNTER_ROCT,
164 	E_MEMAC_COUNTER_RMCA,
165 	E_MEMAC_COUNTER_RBCA,
166 	E_MEMAC_COUNTER_RPKT,
167 	E_MEMAC_COUNTER_RUCA,
168 	E_MEMAC_COUNTER_RERR,
169 	E_MEMAC_COUNTER_TOCT,
170 	E_MEMAC_COUNTER_TMCA,
171 	E_MEMAC_COUNTER_TBCA,
172 	E_MEMAC_COUNTER_TUCA,
173 	E_MEMAC_COUNTER_TERR
174 };
175 
176 #define DEFAULT_PAUSE_QUANTA	0xf000
177 #define DEFAULT_FRAME_LENGTH	0x600
178 #define DEFAULT_TX_IPG_LENGTH	12
179 
180 /*
181  * memory map
182  */
183 
184 struct mac_addr {
185 	uint32_t   mac_addr_l;	/* Lower 32 bits of 48-bit MAC address */
186 	uint32_t   mac_addr_u;	/* Upper 16 bits of 48-bit MAC address */
187 };
188 
189 struct memac_regs {
190 	/* General Control and Status */
191 	uint32_t res0000[2];
192 	uint32_t command_config;	/* 0x008 Ctrl and cfg */
193 	struct mac_addr mac_addr0;	/* 0x00C-0x010 MAC_ADDR_0...1 */
194 	uint32_t maxfrm;		/* 0x014 Max frame length */
195 	uint32_t res0018[1];
196 	uint32_t rx_fifo_sections;	/* Receive FIFO configuration reg */
197 	uint32_t tx_fifo_sections;	/* Transmit FIFO configuration reg */
198 	uint32_t res0024[2];
199 	uint32_t hashtable_ctrl;	/* 0x02C Hash table control */
200 	uint32_t res0030[4];
201 	uint32_t ievent;		/* 0x040 Interrupt event */
202 	uint32_t tx_ipg_length;		/* 0x044 Transmitter inter-packet-gap */
203 	uint32_t res0048;
204 	uint32_t imask;			/* 0x04C Interrupt mask */
205 	uint32_t res0050;
206 	uint32_t pause_quanta[4];	/* 0x054 Pause quanta */
207 	uint32_t pause_thresh[4];	/* 0x064 Pause quanta threshold */
208 	uint32_t rx_pause_status;	/* 0x074 Receive pause status */
209 	uint32_t res0078[2];
210 	struct mac_addr mac_addr[MEMAC_NUM_OF_PADDRS]; /* 0x80-0x0B4 mac padr */
211 	uint32_t lpwake_timer;		/* 0x0B8 Low Power Wakeup Timer */
212 	uint32_t sleep_timer;		/* 0x0BC Transmit EEE Low Power Timer */
213 	uint32_t res00c0[8];
214 	uint32_t statn_config;		/* 0x0E0 Statistics configuration */
215 	uint32_t res00e4[7];
216 	/* Rx Statistics Counter */
217 	uint32_t reoct_l;
218 	uint32_t reoct_u;
219 	uint32_t roct_l;
220 	uint32_t roct_u;
221 	uint32_t raln_l;
222 	uint32_t raln_u;
223 	uint32_t rxpf_l;
224 	uint32_t rxpf_u;
225 	uint32_t rfrm_l;
226 	uint32_t rfrm_u;
227 	uint32_t rfcs_l;
228 	uint32_t rfcs_u;
229 	uint32_t rvlan_l;
230 	uint32_t rvlan_u;
231 	uint32_t rerr_l;
232 	uint32_t rerr_u;
233 	uint32_t ruca_l;
234 	uint32_t ruca_u;
235 	uint32_t rmca_l;
236 	uint32_t rmca_u;
237 	uint32_t rbca_l;
238 	uint32_t rbca_u;
239 	uint32_t rdrp_l;
240 	uint32_t rdrp_u;
241 	uint32_t rpkt_l;
242 	uint32_t rpkt_u;
243 	uint32_t rund_l;
244 	uint32_t rund_u;
245 	uint32_t r64_l;
246 	uint32_t r64_u;
247 	uint32_t r127_l;
248 	uint32_t r127_u;
249 	uint32_t r255_l;
250 	uint32_t r255_u;
251 	uint32_t r511_l;
252 	uint32_t r511_u;
253 	uint32_t r1023_l;
254 	uint32_t r1023_u;
255 	uint32_t r1518_l;
256 	uint32_t r1518_u;
257 	uint32_t r1519x_l;
258 	uint32_t r1519x_u;
259 	uint32_t rovr_l;
260 	uint32_t rovr_u;
261 	uint32_t rjbr_l;
262 	uint32_t rjbr_u;
263 	uint32_t rfrg_l;
264 	uint32_t rfrg_u;
265 	uint32_t rcnp_l;
266 	uint32_t rcnp_u;
267 	uint32_t rdrntp_l;
268 	uint32_t rdrntp_u;
269 	uint32_t res01d0[12];
270 	/* Tx Statistics Counter */
271 	uint32_t teoct_l;
272 	uint32_t teoct_u;
273 	uint32_t toct_l;
274 	uint32_t toct_u;
275 	uint32_t res0210[2];
276 	uint32_t txpf_l;
277 	uint32_t txpf_u;
278 	uint32_t tfrm_l;
279 	uint32_t tfrm_u;
280 	uint32_t tfcs_l;
281 	uint32_t tfcs_u;
282 	uint32_t tvlan_l;
283 	uint32_t tvlan_u;
284 	uint32_t terr_l;
285 	uint32_t terr_u;
286 	uint32_t tuca_l;
287 	uint32_t tuca_u;
288 	uint32_t tmca_l;
289 	uint32_t tmca_u;
290 	uint32_t tbca_l;
291 	uint32_t tbca_u;
292 	uint32_t res0258[2];
293 	uint32_t tpkt_l;
294 	uint32_t tpkt_u;
295 	uint32_t tund_l;
296 	uint32_t tund_u;
297 	uint32_t t64_l;
298 	uint32_t t64_u;
299 	uint32_t t127_l;
300 	uint32_t t127_u;
301 	uint32_t t255_l;
302 	uint32_t t255_u;
303 	uint32_t t511_l;
304 	uint32_t t511_u;
305 	uint32_t t1023_l;
306 	uint32_t t1023_u;
307 	uint32_t t1518_l;
308 	uint32_t t1518_u;
309 	uint32_t t1519x_l;
310 	uint32_t t1519x_u;
311 	uint32_t res02a8[6];
312 	uint32_t tcnp_l;
313 	uint32_t tcnp_u;
314 	uint32_t res02c8[14];
315 	/* Line Interface Control */
316 	uint32_t if_mode;		/* 0x300 Interface Mode Control */
317 	uint32_t if_status;		/* 0x304 Interface Status */
318 	uint32_t res0308[14];
319 	/* HiGig/2 */
320 	uint32_t hg_config;		/* 0x340 Control and cfg */
321 	uint32_t res0344[3];
322 	uint32_t hg_pause_quanta;	/* 0x350 Pause quanta */
323 	uint32_t res0354[3];
324 	uint32_t hg_pause_thresh;	/* 0x360 Pause quanta threshold */
325 	uint32_t res0364[3];
326 	uint32_t hgrx_pause_status;	/* 0x370 Receive pause status */
327 	uint32_t hg_fifos_status;	/* 0x374 fifos status */
328 	uint32_t rhm;			/* 0x378 rx messages counter */
329 	uint32_t thm;			/* 0x37C tx messages counter */
330 };
331 
332 struct memac_cfg {
333 	bool		reset_on_init;
334 	bool		rx_error_discard;
335 	bool		pause_ignore;
336 	bool		pause_forward_enable;
337 	bool		no_length_check_enable;
338 	bool		cmd_frame_enable;
339 	bool		send_idle_enable;
340 	bool		wan_mode_enable;
341 	bool		promiscuous_mode_enable;
342 	bool		tx_addr_ins_enable;
343 	bool		loopback_enable;
344 	bool		lgth_check_nostdr;
345 	bool		time_stamp_enable;
346 	bool		pad_enable;
347 	bool		phy_tx_ena_on;
348 	bool		rx_sfd_any;
349 	bool		rx_pbl_fwd;
350 	bool		tx_pbl_fwd;
351 	bool		debug_mode;
352 	bool		wake_on_lan;
353 	uint16_t	max_frame_length;
354 	uint16_t	pause_quanta;
355 	uint32_t	tx_ipg_length;
356 };
357 
358 
359 /**
360  * fman_memac_defconfig() - Get default MEMAC configuration
361  * @cfg:    pointer to configuration structure.
362  *
363  * Call this function to obtain a default set of configuration values for
364  * initializing MEMAC. The user can overwrite any of the values before calling
365  * fman_memac_init(), if specific configuration needs to be applied.
366  */
367 void fman_memac_defconfig(struct memac_cfg *cfg);
368 
369 int fman_memac_init(struct memac_regs *regs,
370 	struct memac_cfg *cfg,
371 	enum enet_interface enet_interface,
372 	enum enet_speed enet_speed,
373 	bool slow_10g_if,
374 	uint32_t exceptions);
375 
376 void fman_memac_enable(struct memac_regs *regs, bool apply_rx, bool apply_tx);
377 
378 void fman_memac_disable(struct memac_regs *regs, bool apply_rx, bool apply_tx);
379 
380 void fman_memac_set_promiscuous(struct memac_regs *regs, bool val);
381 
382 void fman_memac_add_addr_in_paddr(struct memac_regs *regs,
383 	uint8_t *adr,
384 	uint8_t paddr_num);
385 
386 void fman_memac_clear_addr_in_paddr(struct memac_regs *regs,
387 	uint8_t paddr_num);
388 
389 uint64_t fman_memac_get_counter(struct memac_regs *regs,
390 	enum memac_counters reg_name);
391 
392 void fman_memac_set_tx_pause_frames(struct memac_regs *regs,
393 	uint8_t priority, uint16_t pauseTime, uint16_t threshTime);
394 
395 uint16_t fman_memac_get_max_frame_len(struct memac_regs *regs);
396 
397 void fman_memac_set_exception(struct memac_regs *regs, uint32_t val,
398 	bool enable);
399 
400 void fman_memac_reset_stat(struct memac_regs *regs);
401 
402 void fman_memac_reset(struct memac_regs *regs);
403 
404 void fman_memac_reset_filter_table(struct memac_regs *regs);
405 
406 void fman_memac_set_hash_table_entry(struct memac_regs *regs, uint32_t crc);
407 
408 void fman_memac_set_hash_table(struct memac_regs *regs, uint32_t val);
409 
410 void fman_memac_set_rx_ignore_pause_frames(struct memac_regs *regs,
411 	bool enable);
412 
413 void fman_memac_set_wol(struct memac_regs *regs, bool enable);
414 
415 uint32_t fman_memac_get_event(struct memac_regs *regs, uint32_t ev_mask);
416 
417 void fman_memac_ack_event(struct memac_regs *regs, uint32_t ev_mask);
418 
419 uint32_t fman_memac_get_interrupt_mask(struct memac_regs *regs);
420 
421 void fman_memac_adjust_link(struct memac_regs *regs,
422 	enum enet_interface iface_mode,
423 	enum enet_speed speed, bool full_dx);
424 
425 
426 
427 #endif /*__FSL_FMAN_MEMAC_H*/
428