1 /* SPDX-License-Identifier: GPL-2.0-only */
4 * Copyright (C) 2009-2016 John Crispin <blogic@openwrt.org>
5 * Copyright (C) 2009-2016 Felix Fietkau <nbd@openwrt.org>
6 * Copyright (C) 2013-2016 Michael Lee <igvtee@gmail.com>
12 #include <linux/dma-mapping.h>
13 #include <linux/netdevice.h>
14 #include <linux/of_net.h>
15 #include <linux/u64_stats_sync.h>
16 #include <linux/refcount.h>
18 #define MTK_QDMA_PAGE_SIZE 2048
19 #define MTK_MAX_RX_LENGTH 1536
20 #define MTK_TX_DMA_BUF_LEN 0x3fff
21 #define MTK_DMA_SIZE 256
22 #define MTK_NAPI_WEIGHT 64
23 #define MTK_MAC_COUNT 2
24 #define MTK_RX_ETH_HLEN (VLAN_ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN)
25 #define MTK_RX_HLEN (NET_SKB_PAD + MTK_RX_ETH_HLEN + NET_IP_ALIGN)
26 #define MTK_DMA_DUMMY_DESC 0xffffffff
27 #define MTK_DEFAULT_MSG_ENABLE (NETIF_MSG_DRV | \
35 #define MTK_HW_FEATURES (NETIF_F_IP_CSUM | \
37 NETIF_F_HW_VLAN_CTAG_TX | \
38 NETIF_F_HW_VLAN_CTAG_RX | \
39 NETIF_F_SG | NETIF_F_TSO | \
42 #define NEXT_RX_DESP_IDX(X, Y) (((X) + 1) & ((Y) - 1))
44 #define MTK_MAX_RX_RING_NUM 4
45 #define MTK_HW_LRO_DMA_SIZE 8
47 #define MTK_MAX_LRO_RX_LENGTH (4096 * 3)
48 #define MTK_MAX_LRO_IP_CNT 2
49 #define MTK_HW_LRO_TIMER_UNIT 1 /* 20 us */
50 #define MTK_HW_LRO_REFRESH_TIME 50000 /* 1 sec. */
51 #define MTK_HW_LRO_AGG_TIME 10 /* 200us */
52 #define MTK_HW_LRO_AGE_TIME 50 /* 1ms */
53 #define MTK_HW_LRO_MAX_AGG_CNT 64
54 #define MTK_HW_LRO_BW_THRE 3000
55 #define MTK_HW_LRO_REPLACE_DELTA 1000
56 #define MTK_HW_LRO_SDL_REMAIN_ROOM 1522
58 /* Frame Engine Global Reset Register */
59 #define MTK_RST_GL 0x04
60 #define RST_GL_PSE BIT(0)
62 /* Frame Engine Interrupt Status Register */
63 #define MTK_INT_STATUS2 0x08
64 #define MTK_GDM1_AF BIT(28)
65 #define MTK_GDM2_AF BIT(29)
67 /* PDMA HW LRO Alter Flow Timer Register */
68 #define MTK_PDMA_LRO_ALT_REFRESH_TIMER 0x1c
70 /* Frame Engine Interrupt Grouping Register */
71 #define MTK_FE_INT_GRP 0x20
73 /* CDMP Ingress Control Register */
74 #define MTK_CDMQ_IG_CTRL 0x1400
75 #define MTK_CDMQ_STAG_EN BIT(0)
77 /* CDMP Exgress Control Register */
78 #define MTK_CDMP_EG_CTRL 0x404
80 /* GDM Exgress Control Register */
81 #define MTK_GDMA_FWD_CFG(x) (0x500 + (x * 0x1000))
82 #define MTK_GDMA_ICS_EN BIT(22)
83 #define MTK_GDMA_TCS_EN BIT(21)
84 #define MTK_GDMA_UCS_EN BIT(20)
86 /* Unicast Filter MAC Address Register - Low */
87 #define MTK_GDMA_MAC_ADRL(x) (0x508 + (x * 0x1000))
89 /* Unicast Filter MAC Address Register - High */
90 #define MTK_GDMA_MAC_ADRH(x) (0x50C + (x * 0x1000))
92 /* PDMA RX Base Pointer Register */
93 #define MTK_PRX_BASE_PTR0 0x900
94 #define MTK_PRX_BASE_PTR_CFG(x) (MTK_PRX_BASE_PTR0 + (x * 0x10))
96 /* PDMA RX Maximum Count Register */
97 #define MTK_PRX_MAX_CNT0 0x904
98 #define MTK_PRX_MAX_CNT_CFG(x) (MTK_PRX_MAX_CNT0 + (x * 0x10))
100 /* PDMA RX CPU Pointer Register */
101 #define MTK_PRX_CRX_IDX0 0x908
102 #define MTK_PRX_CRX_IDX_CFG(x) (MTK_PRX_CRX_IDX0 + (x * 0x10))
104 /* PDMA HW LRO Control Registers */
105 #define MTK_PDMA_LRO_CTRL_DW0 0x980
106 #define MTK_LRO_EN BIT(0)
107 #define MTK_L3_CKS_UPD_EN BIT(7)
108 #define MTK_LRO_ALT_PKT_CNT_MODE BIT(21)
109 #define MTK_LRO_RING_RELINQUISH_REQ (0x7 << 26)
110 #define MTK_LRO_RING_RELINQUISH_DONE (0x7 << 29)
112 #define MTK_PDMA_LRO_CTRL_DW1 0x984
113 #define MTK_PDMA_LRO_CTRL_DW2 0x988
114 #define MTK_PDMA_LRO_CTRL_DW3 0x98c
115 #define MTK_ADMA_MODE BIT(15)
116 #define MTK_LRO_MIN_RXD_SDL (MTK_HW_LRO_SDL_REMAIN_ROOM << 16)
118 /* PDMA Global Configuration Register */
119 #define MTK_PDMA_GLO_CFG 0xa04
120 #define MTK_MULTI_EN BIT(10)
122 /* PDMA Reset Index Register */
123 #define MTK_PDMA_RST_IDX 0xa08
124 #define MTK_PST_DRX_IDX0 BIT(16)
125 #define MTK_PST_DRX_IDX_CFG(x) (MTK_PST_DRX_IDX0 << (x))
127 /* PDMA Delay Interrupt Register */
128 #define MTK_PDMA_DELAY_INT 0xa0c
129 #define MTK_PDMA_DELAY_RX_EN BIT(15)
130 #define MTK_PDMA_DELAY_RX_PINT 4
131 #define MTK_PDMA_DELAY_RX_PINT_SHIFT 8
132 #define MTK_PDMA_DELAY_RX_PTIME 4
133 #define MTK_PDMA_DELAY_RX_DELAY \
134 (MTK_PDMA_DELAY_RX_EN | MTK_PDMA_DELAY_RX_PTIME | \
135 (MTK_PDMA_DELAY_RX_PINT << MTK_PDMA_DELAY_RX_PINT_SHIFT))
137 /* PDMA Interrupt Status Register */
138 #define MTK_PDMA_INT_STATUS 0xa20
140 /* PDMA Interrupt Mask Register */
141 #define MTK_PDMA_INT_MASK 0xa28
143 /* PDMA HW LRO Alter Flow Delta Register */
144 #define MTK_PDMA_LRO_ALT_SCORE_DELTA 0xa4c
146 /* PDMA Interrupt grouping registers */
147 #define MTK_PDMA_INT_GRP1 0xa50
148 #define MTK_PDMA_INT_GRP2 0xa54
150 /* PDMA HW LRO IP Setting Registers */
151 #define MTK_LRO_RX_RING0_DIP_DW0 0xb04
152 #define MTK_LRO_DIP_DW0_CFG(x) (MTK_LRO_RX_RING0_DIP_DW0 + (x * 0x40))
153 #define MTK_RING_MYIP_VLD BIT(9)
155 /* PDMA HW LRO Ring Control Registers */
156 #define MTK_LRO_RX_RING0_CTRL_DW1 0xb28
157 #define MTK_LRO_RX_RING0_CTRL_DW2 0xb2c
158 #define MTK_LRO_RX_RING0_CTRL_DW3 0xb30
159 #define MTK_LRO_CTRL_DW1_CFG(x) (MTK_LRO_RX_RING0_CTRL_DW1 + (x * 0x40))
160 #define MTK_LRO_CTRL_DW2_CFG(x) (MTK_LRO_RX_RING0_CTRL_DW2 + (x * 0x40))
161 #define MTK_LRO_CTRL_DW3_CFG(x) (MTK_LRO_RX_RING0_CTRL_DW3 + (x * 0x40))
162 #define MTK_RING_AGE_TIME_L ((MTK_HW_LRO_AGE_TIME & 0x3ff) << 22)
163 #define MTK_RING_AGE_TIME_H ((MTK_HW_LRO_AGE_TIME >> 10) & 0x3f)
164 #define MTK_RING_AUTO_LERAN_MODE (3 << 6)
165 #define MTK_RING_VLD BIT(8)
166 #define MTK_RING_MAX_AGG_TIME ((MTK_HW_LRO_AGG_TIME & 0xffff) << 10)
167 #define MTK_RING_MAX_AGG_CNT_L ((MTK_HW_LRO_MAX_AGG_CNT & 0x3f) << 26)
168 #define MTK_RING_MAX_AGG_CNT_H ((MTK_HW_LRO_MAX_AGG_CNT >> 6) & 0x3)
170 /* QDMA TX Queue Configuration Registers */
171 #define MTK_QTX_CFG(x) (0x1800 + (x * 0x10))
172 #define QDMA_RES_THRES 4
174 /* QDMA TX Queue Scheduler Registers */
175 #define MTK_QTX_SCH(x) (0x1804 + (x * 0x10))
177 /* QDMA RX Base Pointer Register */
178 #define MTK_QRX_BASE_PTR0 0x1900
180 /* QDMA RX Maximum Count Register */
181 #define MTK_QRX_MAX_CNT0 0x1904
183 /* QDMA RX CPU Pointer Register */
184 #define MTK_QRX_CRX_IDX0 0x1908
186 /* QDMA RX DMA Pointer Register */
187 #define MTK_QRX_DRX_IDX0 0x190C
189 /* QDMA Global Configuration Register */
190 #define MTK_QDMA_GLO_CFG 0x1A04
191 #define MTK_RX_2B_OFFSET BIT(31)
192 #define MTK_RX_BT_32DWORDS (3 << 11)
193 #define MTK_NDP_CO_PRO BIT(10)
194 #define MTK_TX_WB_DDONE BIT(6)
195 #define MTK_DMA_SIZE_16DWORDS (2 << 4)
196 #define MTK_RX_DMA_BUSY BIT(3)
197 #define MTK_TX_DMA_BUSY BIT(1)
198 #define MTK_RX_DMA_EN BIT(2)
199 #define MTK_TX_DMA_EN BIT(0)
200 #define MTK_DMA_BUSY_TIMEOUT HZ
202 /* QDMA Reset Index Register */
203 #define MTK_QDMA_RST_IDX 0x1A08
205 /* QDMA Delay Interrupt Register */
206 #define MTK_QDMA_DELAY_INT 0x1A0C
208 /* QDMA Flow Control Register */
209 #define MTK_QDMA_FC_THRES 0x1A10
210 #define FC_THRES_DROP_MODE BIT(20)
211 #define FC_THRES_DROP_EN (7 << 16)
212 #define FC_THRES_MIN 0x4444
214 /* QDMA Interrupt Status Register */
215 #define MTK_QMTK_INT_STATUS 0x1A18
216 #define MTK_RX_DONE_DLY BIT(30)
217 #define MTK_RX_DONE_INT3 BIT(19)
218 #define MTK_RX_DONE_INT2 BIT(18)
219 #define MTK_RX_DONE_INT1 BIT(17)
220 #define MTK_RX_DONE_INT0 BIT(16)
221 #define MTK_TX_DONE_INT3 BIT(3)
222 #define MTK_TX_DONE_INT2 BIT(2)
223 #define MTK_TX_DONE_INT1 BIT(1)
224 #define MTK_TX_DONE_INT0 BIT(0)
225 #define MTK_RX_DONE_INT MTK_RX_DONE_DLY
226 #define MTK_TX_DONE_INT (MTK_TX_DONE_INT0 | MTK_TX_DONE_INT1 | \
227 MTK_TX_DONE_INT2 | MTK_TX_DONE_INT3)
229 /* QDMA Interrupt grouping registers */
230 #define MTK_QDMA_INT_GRP1 0x1a20
231 #define MTK_QDMA_INT_GRP2 0x1a24
232 #define MTK_RLS_DONE_INT BIT(0)
234 /* QDMA Interrupt Status Register */
235 #define MTK_QDMA_INT_MASK 0x1A1C
237 /* QDMA Interrupt Mask Register */
238 #define MTK_QDMA_HRED2 0x1A44
240 /* QDMA TX Forward CPU Pointer Register */
241 #define MTK_QTX_CTX_PTR 0x1B00
243 /* QDMA TX Forward DMA Pointer Register */
244 #define MTK_QTX_DTX_PTR 0x1B04
246 /* QDMA TX Release CPU Pointer Register */
247 #define MTK_QTX_CRX_PTR 0x1B10
249 /* QDMA TX Release DMA Pointer Register */
250 #define MTK_QTX_DRX_PTR 0x1B14
252 /* QDMA FQ Head Pointer Register */
253 #define MTK_QDMA_FQ_HEAD 0x1B20
255 /* QDMA FQ Head Pointer Register */
256 #define MTK_QDMA_FQ_TAIL 0x1B24
258 /* QDMA FQ Free Page Counter Register */
259 #define MTK_QDMA_FQ_CNT 0x1B28
261 /* QDMA FQ Free Page Buffer Length Register */
262 #define MTK_QDMA_FQ_BLEN 0x1B2C
264 /* GMA1 Received Good Byte Count Register */
265 #define MTK_GDM1_TX_GBCNT 0x2400
266 #define MTK_STAT_OFFSET 0x40
268 /* QDMA descriptor txd4 */
269 #define TX_DMA_CHKSUM (0x7 << 29)
270 #define TX_DMA_TSO BIT(28)
271 #define TX_DMA_FPORT_SHIFT 25
272 #define TX_DMA_FPORT_MASK 0x7
273 #define TX_DMA_INS_VLAN BIT(16)
275 /* QDMA descriptor txd3 */
276 #define TX_DMA_OWNER_CPU BIT(31)
277 #define TX_DMA_LS0 BIT(30)
278 #define TX_DMA_PLEN0(_x) (((_x) & MTK_TX_DMA_BUF_LEN) << 16)
279 #define TX_DMA_SWC BIT(14)
280 #define TX_DMA_SDL(_x) (((_x) & 0x3fff) << 16)
282 /* QDMA descriptor rxd2 */
283 #define RX_DMA_DONE BIT(31)
284 #define RX_DMA_PLEN0(_x) (((_x) & 0x3fff) << 16)
285 #define RX_DMA_GET_PLEN0(_x) (((_x) >> 16) & 0x3fff)
287 /* QDMA descriptor rxd3 */
288 #define RX_DMA_VID(_x) ((_x) & 0xfff)
290 /* QDMA descriptor rxd4 */
291 #define RX_DMA_L4_VALID BIT(24)
292 #define RX_DMA_FPORT_SHIFT 19
293 #define RX_DMA_FPORT_MASK 0x7
295 /* PHY Indirect Access Control registers */
296 #define MTK_PHY_IAC 0x10004
297 #define PHY_IAC_ACCESS BIT(31)
298 #define PHY_IAC_READ BIT(19)
299 #define PHY_IAC_WRITE BIT(18)
300 #define PHY_IAC_START BIT(16)
301 #define PHY_IAC_ADDR_SHIFT 20
302 #define PHY_IAC_REG_SHIFT 25
303 #define PHY_IAC_TIMEOUT HZ
305 #define MTK_MAC_MISC 0x1000c
306 #define MTK_MUX_TO_ESW BIT(0)
308 /* Mac control registers */
309 #define MTK_MAC_MCR(x) (0x10100 + (x * 0x100))
310 #define MAC_MCR_MAX_RX_1536 BIT(24)
311 #define MAC_MCR_IPG_CFG (BIT(18) | BIT(16))
312 #define MAC_MCR_FORCE_MODE BIT(15)
313 #define MAC_MCR_TX_EN BIT(14)
314 #define MAC_MCR_RX_EN BIT(13)
315 #define MAC_MCR_BACKOFF_EN BIT(9)
316 #define MAC_MCR_BACKPR_EN BIT(8)
317 #define MAC_MCR_FORCE_RX_FC BIT(5)
318 #define MAC_MCR_FORCE_TX_FC BIT(4)
319 #define MAC_MCR_SPEED_1000 BIT(3)
320 #define MAC_MCR_SPEED_100 BIT(2)
321 #define MAC_MCR_FORCE_DPX BIT(1)
322 #define MAC_MCR_FORCE_LINK BIT(0)
323 #define MAC_MCR_FIXED_LINK (MAC_MCR_MAX_RX_1536 | MAC_MCR_IPG_CFG | \
324 MAC_MCR_FORCE_MODE | MAC_MCR_TX_EN | \
325 MAC_MCR_RX_EN | MAC_MCR_BACKOFF_EN | \
326 MAC_MCR_BACKPR_EN | MAC_MCR_FORCE_RX_FC | \
327 MAC_MCR_FORCE_TX_FC | MAC_MCR_SPEED_1000 | \
328 MAC_MCR_FORCE_DPX | MAC_MCR_FORCE_LINK)
330 /* TRGMII RXC control register */
331 #define TRGMII_RCK_CTRL 0x10300
332 #define DQSI0(x) ((x << 0) & GENMASK(6, 0))
333 #define DQSI1(x) ((x << 8) & GENMASK(14, 8))
334 #define RXCTL_DMWTLAT(x) ((x << 16) & GENMASK(18, 16))
335 #define RXC_DQSISEL BIT(30)
336 #define RCK_CTRL_RGMII_1000 (RXC_DQSISEL | RXCTL_DMWTLAT(2) | DQSI1(16))
337 #define RCK_CTRL_RGMII_10_100 RXCTL_DMWTLAT(2)
339 /* TRGMII RXC control register */
340 #define TRGMII_TCK_CTRL 0x10340
341 #define TXCTL_DMWTLAT(x) ((x << 16) & GENMASK(18, 16))
342 #define TXC_INV BIT(30)
343 #define TCK_CTRL_RGMII_1000 TXCTL_DMWTLAT(2)
344 #define TCK_CTRL_RGMII_10_100 (TXC_INV | TXCTL_DMWTLAT(2))
346 /* TRGMII Interface mode register */
347 #define INTF_MODE 0x10390
348 #define TRGMII_INTF_DIS BIT(0)
349 #define TRGMII_MODE BIT(1)
350 #define TRGMII_CENTRAL_ALIGNED BIT(2)
351 #define INTF_MODE_RGMII_1000 (TRGMII_MODE | TRGMII_CENTRAL_ALIGNED)
352 #define INTF_MODE_RGMII_10_100 0
354 /* GPIO port control registers for GMAC 2*/
355 #define GPIO_OD33_CTRL8 0x4c0
356 #define GPIO_BIAS_CTRL 0xed0
357 #define GPIO_DRV_SEL10 0xf00
359 /* ethernet subsystem chip id register */
360 #define ETHSYS_CHIPID0_3 0x0
361 #define ETHSYS_CHIPID4_7 0x4
362 #define MT7623_ETH 7623
363 #define MT7622_ETH 7622
364 #define MT7621_ETH 7621
366 /* ethernet system control register */
367 #define ETHSYS_SYSCFG 0x10
368 #define SYSCFG_DRAM_TYPE_DDR2 BIT(4)
370 /* ethernet subsystem config register */
371 #define ETHSYS_SYSCFG0 0x14
372 #define SYSCFG0_GE_MASK 0x3
373 #define SYSCFG0_GE_MODE(x, y) (x << (12 + (y * 2)))
374 #define SYSCFG0_SGMII_MASK GENMASK(9, 8)
375 #define SYSCFG0_SGMII_GMAC1 ((2 << 8) & SYSCFG0_SGMII_MASK)
376 #define SYSCFG0_SGMII_GMAC2 ((3 << 8) & SYSCFG0_SGMII_MASK)
377 #define SYSCFG0_SGMII_GMAC1_V2 BIT(9)
378 #define SYSCFG0_SGMII_GMAC2_V2 BIT(8)
381 /* ethernet subsystem clock register */
382 #define ETHSYS_CLKCFG0 0x2c
383 #define ETHSYS_TRGMII_CLK_SEL362_5 BIT(11)
384 #define ETHSYS_TRGMII_MT7621_MASK (BIT(5) | BIT(6))
385 #define ETHSYS_TRGMII_MT7621_APLL BIT(6)
386 #define ETHSYS_TRGMII_MT7621_DDR_PLL BIT(5)
388 /* ethernet reset control register */
389 #define ETHSYS_RSTCTRL 0x34
390 #define RSTCTRL_FE BIT(6)
391 #define RSTCTRL_PPE BIT(31)
393 /* SGMII subsystem config registers */
394 /* Register to auto-negotiation restart */
395 #define SGMSYS_PCS_CONTROL_1 0x0
396 #define SGMII_AN_RESTART BIT(9)
398 /* Register to programmable link timer, the unit in 2 * 8ns */
399 #define SGMSYS_PCS_LINK_TIMER 0x18
400 #define SGMII_LINK_TIMER_DEFAULT (0x186a0 & GENMASK(19, 0))
402 /* Register to control remote fault */
403 #define SGMSYS_SGMII_MODE 0x20
404 #define SGMII_REMOTE_FAULT_DIS BIT(8)
406 /* Register to power up QPHY */
407 #define SGMSYS_QPHY_PWR_STATE_CTRL 0xe8
408 #define SGMII_PHYA_PWD BIT(4)
410 /* Infrasys subsystem config registers */
411 #define INFRA_MISC2 0x70c
412 #define CO_QPHY_SEL BIT(0)
413 #define GEPHY_MAC_SEL BIT(1)
420 } __packed __aligned(4);
427 } __packed __aligned(4);
432 /* struct mtk_hw_stats - the structure that holds the traffic statistics.
433 * @stats_lock: make sure that stats operations are atomic
434 * @reg_offset: the status register offset of the SoC
435 * @syncp: the refcount
437 * All of the supported SoCs have hardware counters for traffic statistics.
438 * Whenever the status IRQ triggers we can read the latest stats from these
439 * counters and store them in this struct.
441 struct mtk_hw_stats {
452 u64 rx_checksum_errors;
453 u64 rx_flow_control_packets;
455 spinlock_t stats_lock;
457 struct u64_stats_sync syncp;
461 /* PDMA descriptor can point at 1-2 segments. This enum allows us to
462 * track how memory was allocated so that it can be freed properly.
464 MTK_TX_FLAGS_SINGLE0 = 0x01,
465 MTK_TX_FLAGS_PAGE0 = 0x02,
467 /* MTK_TX_FLAGS_FPORTx allows tracking which port the transmitted
468 * SKB out instead of looking up through hardware TX descriptor.
470 MTK_TX_FLAGS_FPORT0 = 0x04,
471 MTK_TX_FLAGS_FPORT1 = 0x08,
474 /* This enum allows us to identify how the clock is defined on the array of the
486 MTK_CLK_SGMII_TX_250M,
487 MTK_CLK_SGMII_RX_250M,
488 MTK_CLK_SGMII_CDR_REF,
489 MTK_CLK_SGMII_CDR_FB,
490 MTK_CLK_SGMII2_TX_250M,
491 MTK_CLK_SGMII2_RX_250M,
492 MTK_CLK_SGMII2_CDR_REF,
493 MTK_CLK_SGMII2_CDR_FB,
499 #define MT7623_CLKS_BITMAP (BIT(MTK_CLK_ETHIF) | BIT(MTK_CLK_ESW) | \
500 BIT(MTK_CLK_GP1) | BIT(MTK_CLK_GP2) | \
502 #define MT7622_CLKS_BITMAP (BIT(MTK_CLK_ETHIF) | BIT(MTK_CLK_ESW) | \
503 BIT(MTK_CLK_GP0) | BIT(MTK_CLK_GP1) | \
505 BIT(MTK_CLK_SGMII_TX_250M) | \
506 BIT(MTK_CLK_SGMII_RX_250M) | \
507 BIT(MTK_CLK_SGMII_CDR_REF) | \
508 BIT(MTK_CLK_SGMII_CDR_FB) | \
509 BIT(MTK_CLK_SGMII_CK) | \
510 BIT(MTK_CLK_ETH2PLL))
511 #define MT7621_CLKS_BITMAP (0)
512 #define MT7629_CLKS_BITMAP (BIT(MTK_CLK_ETHIF) | BIT(MTK_CLK_ESW) | \
513 BIT(MTK_CLK_GP0) | BIT(MTK_CLK_GP1) | \
514 BIT(MTK_CLK_GP2) | BIT(MTK_CLK_FE) | \
515 BIT(MTK_CLK_SGMII_TX_250M) | \
516 BIT(MTK_CLK_SGMII_RX_250M) | \
517 BIT(MTK_CLK_SGMII_CDR_REF) | \
518 BIT(MTK_CLK_SGMII_CDR_FB) | \
519 BIT(MTK_CLK_SGMII2_TX_250M) | \
520 BIT(MTK_CLK_SGMII2_RX_250M) | \
521 BIT(MTK_CLK_SGMII2_CDR_REF) | \
522 BIT(MTK_CLK_SGMII2_CDR_FB) | \
523 BIT(MTK_CLK_SGMII_CK) | \
524 BIT(MTK_CLK_ETH2PLL) | BIT(MTK_CLK_SGMIITOP))
531 /* struct mtk_tx_buf - This struct holds the pointers to the memory pointed at
532 * by the TX descriptor s
533 * @skb: The SKB pointer of the packet being sent
534 * @dma_addr0: The base addr of the first segment
535 * @dma_len0: The length of the first segment
536 * @dma_addr1: The base addr of the second segment
537 * @dma_len1: The length of the second segment
542 DEFINE_DMA_UNMAP_ADDR(dma_addr0);
543 DEFINE_DMA_UNMAP_LEN(dma_len0);
544 DEFINE_DMA_UNMAP_ADDR(dma_addr1);
545 DEFINE_DMA_UNMAP_LEN(dma_len1);
548 /* struct mtk_tx_ring - This struct holds info describing a TX ring
549 * @dma: The descriptor ring
550 * @buf: The memory pointed at by the ring
551 * @phys: The physical addr of tx_buf
552 * @next_free: Pointer to the next free descriptor
553 * @last_free: Pointer to the last free descriptor
554 * @thresh: The threshold of minimum amount of free descriptors
555 * @free_count: QDMA uses a linked list. Track how many free descriptors
559 struct mtk_tx_dma *dma;
560 struct mtk_tx_buf *buf;
562 struct mtk_tx_dma *next_free;
563 struct mtk_tx_dma *last_free;
568 /* PDMA rx ring mode */
570 MTK_RX_FLAGS_NORMAL = 0,
575 /* struct mtk_rx_ring - This struct holds info describing a RX ring
576 * @dma: The descriptor ring
577 * @data: The memory pointed at by the ring
578 * @phys: The physical addr of rx_buf
579 * @frag_size: How big can each fragment be
580 * @buf_size: The size of each packet buffer
581 * @calc_idx: The current head of ring
584 struct mtk_rx_dma *dma;
590 bool calc_idx_update;
595 enum mkt_eth_capabilities {
603 MTK_SHARED_SGMII_BIT,
606 MTK_TRGMII_MT7621_CLK_BIT,
609 MTK_ETH_MUX_GDM1_TO_GMAC1_ESW_BIT,
610 MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY_BIT,
611 MTK_ETH_MUX_U3_GMAC2_TO_QPHY_BIT,
612 MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII_BIT,
613 MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII_BIT,
616 MTK_ETH_PATH_GMAC1_RGMII_BIT,
617 MTK_ETH_PATH_GMAC1_TRGMII_BIT,
618 MTK_ETH_PATH_GMAC1_SGMII_BIT,
619 MTK_ETH_PATH_GMAC2_RGMII_BIT,
620 MTK_ETH_PATH_GMAC2_SGMII_BIT,
621 MTK_ETH_PATH_GMAC2_GEPHY_BIT,
622 MTK_ETH_PATH_GDM1_ESW_BIT,
625 /* Supported hardware group on SoCs */
626 #define MTK_RGMII BIT(MTK_RGMII_BIT)
627 #define MTK_TRGMII BIT(MTK_TRGMII_BIT)
628 #define MTK_SGMII BIT(MTK_SGMII_BIT)
629 #define MTK_ESW BIT(MTK_ESW_BIT)
630 #define MTK_GEPHY BIT(MTK_GEPHY_BIT)
631 #define MTK_MUX BIT(MTK_MUX_BIT)
632 #define MTK_INFRA BIT(MTK_INFRA_BIT)
633 #define MTK_SHARED_SGMII BIT(MTK_SHARED_SGMII_BIT)
634 #define MTK_HWLRO BIT(MTK_HWLRO_BIT)
635 #define MTK_SHARED_INT BIT(MTK_SHARED_INT_BIT)
636 #define MTK_TRGMII_MT7621_CLK BIT(MTK_TRGMII_MT7621_CLK_BIT)
638 #define MTK_ETH_MUX_GDM1_TO_GMAC1_ESW \
639 BIT(MTK_ETH_MUX_GDM1_TO_GMAC1_ESW_BIT)
640 #define MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY \
641 BIT(MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY_BIT)
642 #define MTK_ETH_MUX_U3_GMAC2_TO_QPHY \
643 BIT(MTK_ETH_MUX_U3_GMAC2_TO_QPHY_BIT)
644 #define MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII \
645 BIT(MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII_BIT)
646 #define MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII \
647 BIT(MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII_BIT)
649 /* Supported path present on SoCs */
650 #define MTK_ETH_PATH_GMAC1_RGMII BIT(MTK_ETH_PATH_GMAC1_RGMII_BIT)
651 #define MTK_ETH_PATH_GMAC1_TRGMII BIT(MTK_ETH_PATH_GMAC1_TRGMII_BIT)
652 #define MTK_ETH_PATH_GMAC1_SGMII BIT(MTK_ETH_PATH_GMAC1_SGMII_BIT)
653 #define MTK_ETH_PATH_GMAC2_RGMII BIT(MTK_ETH_PATH_GMAC2_RGMII_BIT)
654 #define MTK_ETH_PATH_GMAC2_SGMII BIT(MTK_ETH_PATH_GMAC2_SGMII_BIT)
655 #define MTK_ETH_PATH_GMAC2_GEPHY BIT(MTK_ETH_PATH_GMAC2_GEPHY_BIT)
656 #define MTK_ETH_PATH_GDM1_ESW BIT(MTK_ETH_PATH_GDM1_ESW_BIT)
658 #define MTK_GMAC1_RGMII (MTK_ETH_PATH_GMAC1_RGMII | MTK_RGMII)
659 #define MTK_GMAC1_TRGMII (MTK_ETH_PATH_GMAC1_TRGMII | MTK_TRGMII)
660 #define MTK_GMAC1_SGMII (MTK_ETH_PATH_GMAC1_SGMII | MTK_SGMII)
661 #define MTK_GMAC2_RGMII (MTK_ETH_PATH_GMAC2_RGMII | MTK_RGMII)
662 #define MTK_GMAC2_SGMII (MTK_ETH_PATH_GMAC2_SGMII | MTK_SGMII)
663 #define MTK_GMAC2_GEPHY (MTK_ETH_PATH_GMAC2_GEPHY | MTK_GEPHY)
664 #define MTK_GDM1_ESW (MTK_ETH_PATH_GDM1_ESW | MTK_ESW)
666 /* MUXes present on SoCs */
667 /* 0: GDM1 -> GMAC1, 1: GDM1 -> ESW */
668 #define MTK_MUX_GDM1_TO_GMAC1_ESW (MTK_ETH_MUX_GDM1_TO_GMAC1_ESW | MTK_MUX)
670 /* 0: GMAC2 -> GEPHY, 1: GMAC0 -> GePHY */
671 #define MTK_MUX_GMAC2_GMAC0_TO_GEPHY \
672 (MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY | MTK_MUX | MTK_INFRA)
674 /* 0: U3 -> QPHY, 1: GMAC2 -> QPHY */
675 #define MTK_MUX_U3_GMAC2_TO_QPHY \
676 (MTK_ETH_MUX_U3_GMAC2_TO_QPHY | MTK_MUX | MTK_INFRA)
678 /* 2: GMAC1 -> SGMII, 3: GMAC2 -> SGMII */
679 #define MTK_MUX_GMAC1_GMAC2_TO_SGMII_RGMII \
680 (MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII | MTK_MUX | \
683 /* 0: GMACx -> GEPHY, 1: GMACx -> SGMII where x is 1 or 2 */
684 #define MTK_MUX_GMAC12_TO_GEPHY_SGMII \
685 (MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII | MTK_MUX)
687 #define MTK_HAS_CAPS(caps, _x) (((caps) & (_x)) == (_x))
689 #define MT7621_CAPS (MTK_GMAC1_RGMII | MTK_GMAC1_TRGMII | \
690 MTK_GMAC2_RGMII | MTK_SHARED_INT | MTK_TRGMII_MT7621_CLK)
692 #define MT7622_CAPS (MTK_GMAC1_RGMII | MTK_GMAC1_SGMII | MTK_GMAC2_RGMII | \
693 MTK_GMAC2_SGMII | MTK_GDM1_ESW | \
694 MTK_MUX_GDM1_TO_GMAC1_ESW | \
695 MTK_MUX_GMAC1_GMAC2_TO_SGMII_RGMII)
697 #define MT7623_CAPS (MTK_GMAC1_RGMII | MTK_GMAC1_TRGMII | MTK_GMAC2_RGMII)
699 #define MT7629_CAPS (MTK_GMAC1_SGMII | MTK_GMAC2_SGMII | MTK_GMAC2_GEPHY | \
700 MTK_GDM1_ESW | MTK_MUX_GDM1_TO_GMAC1_ESW | \
701 MTK_MUX_GMAC2_GMAC0_TO_GEPHY | \
702 MTK_MUX_U3_GMAC2_TO_QPHY | \
703 MTK_MUX_GMAC12_TO_GEPHY_SGMII)
705 /* struct mtk_eth_data - This is the structure holding all differences
706 * among various plaforms
707 * @ana_rgc3: The offset for register ANA_RGC3 related to
709 * @caps Flags shown the extra capability for the SoC
710 * @required_clks Flags shown the bitmap for required clocks on
712 * @required_pctl A bool value to show whether the SoC requires
713 * the extra setup for those pins used by GMAC.
715 struct mtk_soc_data {
722 /* currently no SoC has more than 2 macs */
723 #define MTK_MAX_DEVS 2
725 #define MTK_SGMII_PHYSPEED_AN BIT(31)
726 #define MTK_SGMII_PHYSPEED_MASK GENMASK(2, 0)
727 #define MTK_SGMII_PHYSPEED_1000 BIT(0)
728 #define MTK_SGMII_PHYSPEED_2500 BIT(1)
729 #define MTK_HAS_FLAGS(flags, _x) (((flags) & (_x)) == (_x))
731 /* struct mtk_sgmii - This is the structure holding sgmii regmap and its
733 * @regmap: The register map pointing at the range used to setup
735 * @flags: The enum refers to which mode the sgmii wants to run on
736 * @ana_rgc3: The offset refers to register ANA_RGC3 related to regmap
740 struct regmap *regmap[MTK_MAX_DEVS];
741 u32 flags[MTK_MAX_DEVS];
745 /* struct mtk_eth - This is the main datasructure for holding the state
747 * @dev: The device pointer
748 * @base: The mapped register i/o base
749 * @page_lock: Make sure that register operations are atomic
750 * @tx_irq__lock: Make sure that IRQ register operations are atomic
751 * @rx_irq__lock: Make sure that IRQ register operations are atomic
752 * @dummy_dev: we run 2 netdevs on 1 physical DMA ring and need a
753 * dummy for NAPI to work
754 * @netdev: The netdev instances
755 * @mac: Each netdev is linked to a physical MAC
756 * @irq: The IRQ that we are using
757 * @msg_enable: Ethtool msg level
758 * @ethsys: The register map pointing at the range used to setup
760 * @infra: The register map pointing at the range used to setup
761 * SGMII and GePHY path
762 * @pctl: The register map pointing at the range used to setup
763 * GMAC port drive/slew values
764 * @dma_refcnt: track how many netdevs are using the DMA engine
765 * @tx_ring: Pointer to the memory holding info about the TX ring
766 * @rx_ring: Pointer to the memory holding info about the RX ring
767 * @rx_ring_qdma: Pointer to the memory holding info about the QDMA RX ring
768 * @tx_napi: The TX NAPI struct
769 * @rx_napi: The RX NAPI struct
770 * @scratch_ring: Newer SoCs need memory for a second HW managed TX ring
771 * @phy_scratch_ring: physical address of scratch_ring
772 * @scratch_head: The scratch memory that scratch_ring points to.
773 * @clks: clock array for all clocks required
774 * @mii_bus: If there is a bus we need to create an instance for it
775 * @pending_work: The workqueue used to reset the dma ring
776 * @state: Initialization and runtime state of the device
777 * @soc: Holding specific data among vaious SoCs
783 spinlock_t page_lock;
784 spinlock_t tx_irq_lock;
785 spinlock_t rx_irq_lock;
786 struct net_device dummy_dev;
787 struct net_device *netdev[MTK_MAX_DEVS];
788 struct mtk_mac *mac[MTK_MAX_DEVS];
791 unsigned long sysclk;
792 struct regmap *ethsys;
793 struct regmap *infra;
794 struct mtk_sgmii *sgmii;
797 refcount_t dma_refcnt;
798 struct mtk_tx_ring tx_ring;
799 struct mtk_rx_ring rx_ring[MTK_MAX_RX_RING_NUM];
800 struct mtk_rx_ring rx_ring_qdma;
801 struct napi_struct tx_napi;
802 struct napi_struct rx_napi;
803 struct mtk_tx_dma *scratch_ring;
804 dma_addr_t phy_scratch_ring;
806 struct clk *clks[MTK_CLK_MAX];
808 struct mii_bus *mii_bus;
809 struct work_struct pending_work;
812 const struct mtk_soc_data *soc;
815 /* struct mtk_mac - the structure that holds the info about the MACs of the
817 * @id: The number of the MAC
818 * @ge_mode: Interface mode kept for setup restoring
819 * @of_node: Our devicetree node
820 * @hw: Backpointer to our main datastruture
821 * @hw_stats: Packet statistics counter
822 * @trgmii Indicate if the MAC uses TRGMII connected to internal
828 struct device_node *of_node;
830 struct mtk_hw_stats *hw_stats;
831 __be32 hwlro_ip[MTK_MAX_LRO_IP_CNT];
836 /* the struct describing the SoC. these are declared in the soc_xyz.c files */
837 extern const struct of_device_id of_mtk_match[];
839 /* read the hardware status register */
840 void mtk_stats_update_mac(struct mtk_mac *mac);
842 void mtk_w32(struct mtk_eth *eth, u32 val, unsigned reg);
843 u32 mtk_r32(struct mtk_eth *eth, unsigned reg);
845 int mtk_sgmii_init(struct mtk_sgmii *ss, struct device_node *np,
847 int mtk_sgmii_setup_mode_an(struct mtk_sgmii *ss, int id);
848 int mtk_sgmii_setup_mode_force(struct mtk_sgmii *ss, int id);
849 int mtk_setup_hw_path(struct mtk_eth *eth, int mac_id, int phymode);
851 #endif /* MTK_ETH_H */