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[mirror_ubuntu-artful-kernel.git] / drivers / net / dsa / mt7530.h
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1/*
2 * Copyright (C) 2017 Sean Wang <sean.wang@mediatek.com>
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.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 */
13
14#ifndef __MT7530_H
15#define __MT7530_H
16
17#define MT7530_NUM_PORTS 7
18#define MT7530_CPU_PORT 6
19#define MT7530_NUM_FDB_RECORDS 2048
20
21#define NUM_TRGMII_CTRL 5
22
23#define TRGMII_BASE(x) (0x10000 + (x))
24
25/* Registers to ethsys access */
26#define ETHSYS_CLKCFG0 0x2c
27#define ETHSYS_TRGMII_CLK_SEL362_5 BIT(11)
28
29#define SYSC_REG_RSTCTRL 0x34
30#define RESET_MCM BIT(2)
31
32/* Registers to mac forward control for unknown frames */
33#define MT7530_MFC 0x10
34#define BC_FFP(x) (((x) & 0xff) << 24)
35#define UNM_FFP(x) (((x) & 0xff) << 16)
36#define UNU_FFP(x) (((x) & 0xff) << 8)
37#define UNU_FFP_MASK UNU_FFP(~0)
38
39/* Registers for address table access */
40#define MT7530_ATA1 0x74
41#define STATIC_EMP 0
42#define STATIC_ENT 3
43#define MT7530_ATA2 0x78
44
45/* Register for address table write data */
46#define MT7530_ATWD 0x7c
47
48/* Register for address table control */
49#define MT7530_ATC 0x80
50#define ATC_HASH (((x) & 0xfff) << 16)
51#define ATC_BUSY BIT(15)
52#define ATC_SRCH_END BIT(14)
53#define ATC_SRCH_HIT BIT(13)
54#define ATC_INVALID BIT(12)
55#define ATC_MAT(x) (((x) & 0xf) << 8)
56#define ATC_MAT_MACTAB ATC_MAT(0)
57
58enum mt7530_fdb_cmd {
59 MT7530_FDB_READ = 0,
60 MT7530_FDB_WRITE = 1,
61 MT7530_FDB_FLUSH = 2,
62 MT7530_FDB_START = 4,
63 MT7530_FDB_NEXT = 5,
64};
65
66/* Registers for table search read address */
67#define MT7530_TSRA1 0x84
68#define MAC_BYTE_0 24
69#define MAC_BYTE_1 16
70#define MAC_BYTE_2 8
71#define MAC_BYTE_3 0
72#define MAC_BYTE_MASK 0xff
73
74#define MT7530_TSRA2 0x88
75#define MAC_BYTE_4 24
76#define MAC_BYTE_5 16
77#define CVID 0
78#define CVID_MASK 0xfff
79
80#define MT7530_ATRD 0x8C
81#define AGE_TIMER 24
82#define AGE_TIMER_MASK 0xff
83#define PORT_MAP 4
84#define PORT_MAP_MASK 0xff
85#define ENT_STATUS 2
86#define ENT_STATUS_MASK 0x3
87
88/* Register for vlan table control */
89#define MT7530_VTCR 0x90
90#define VTCR_BUSY BIT(31)
91#define VTCR_FUNC (((x) & 0xf) << 12)
92#define VTCR_FUNC_RD_VID 0x1
93#define VTCR_FUNC_WR_VID 0x2
94#define VTCR_FUNC_INV_VID 0x3
95#define VTCR_FUNC_VAL_VID 0x4
96#define VTCR_VID ((x) & 0xfff)
97
98/* Register for setup vlan and acl write data */
99#define MT7530_VAWD1 0x94
100#define PORT_STAG BIT(31)
101#define IVL_MAC BIT(30)
102#define PORT_MEM(x) (((x) & 0xff) << 16)
103#define VALID BIT(1)
104
105#define MT7530_VAWD2 0x98
106
107/* Register for port STP state control */
108#define MT7530_SSP_P(x) (0x2000 + ((x) * 0x100))
109#define FID_PST(x) ((x) & 0x3)
110#define FID_PST_MASK FID_PST(0x3)
111
112enum mt7530_stp_state {
113 MT7530_STP_DISABLED = 0,
114 MT7530_STP_BLOCKING = 1,
115 MT7530_STP_LISTENING = 1,
116 MT7530_STP_LEARNING = 2,
117 MT7530_STP_FORWARDING = 3
118};
119
120/* Register for port control */
121#define MT7530_PCR_P(x) (0x2004 + ((x) * 0x100))
122#define PORT_VLAN(x) ((x) & 0x3)
123#define PCR_MATRIX(x) (((x) & 0xff) << 16)
124#define PORT_PRI(x) (((x) & 0x7) << 24)
125#define EG_TAG(x) (((x) & 0x3) << 28)
126#define PCR_MATRIX_MASK PCR_MATRIX(0xff)
127#define PCR_MATRIX_CLR PCR_MATRIX(0)
128
129/* Register for port security control */
130#define MT7530_PSC_P(x) (0x200c + ((x) * 0x100))
131#define SA_DIS BIT(4)
132
133/* Register for port vlan control */
134#define MT7530_PVC_P(x) (0x2010 + ((x) * 0x100))
135#define PORT_SPEC_TAG BIT(5)
136#define VLAN_ATTR(x) (((x) & 0x3) << 6)
137#define STAG_VPID (((x) & 0xffff) << 16)
138
139/* Register for port port-and-protocol based vlan 1 control */
140#define MT7530_PPBV1_P(x) (0x2014 + ((x) * 0x100))
141
142/* Register for port MAC control register */
143#define MT7530_PMCR_P(x) (0x3000 + ((x) * 0x100))
144#define PMCR_IFG_XMIT(x) (((x) & 0x3) << 18)
145#define PMCR_MAC_MODE BIT(16)
146#define PMCR_FORCE_MODE BIT(15)
147#define PMCR_TX_EN BIT(14)
148#define PMCR_RX_EN BIT(13)
149#define PMCR_BACKOFF_EN BIT(9)
150#define PMCR_BACKPR_EN BIT(8)
151#define PMCR_TX_FC_EN BIT(5)
152#define PMCR_RX_FC_EN BIT(4)
153#define PMCR_FORCE_SPEED_1000 BIT(3)
8e6f1521 154#define PMCR_FORCE_SPEED_100 BIT(2)
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155#define PMCR_FORCE_FDX BIT(1)
156#define PMCR_FORCE_LNK BIT(0)
157#define PMCR_COMMON_LINK (PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | \
158 PMCR_BACKOFF_EN | PMCR_BACKPR_EN | \
159 PMCR_TX_EN | PMCR_RX_EN | \
160 PMCR_TX_FC_EN | PMCR_RX_FC_EN)
161#define PMCR_CPUP_LINK (PMCR_COMMON_LINK | PMCR_FORCE_MODE | \
162 PMCR_FORCE_SPEED_1000 | \
163 PMCR_FORCE_FDX | \
164 PMCR_FORCE_LNK)
165#define PMCR_USERP_LINK PMCR_COMMON_LINK
166#define PMCR_FIXED_LINK (PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | \
167 PMCR_FORCE_MODE | PMCR_TX_EN | \
168 PMCR_RX_EN | PMCR_BACKPR_EN | \
169 PMCR_BACKOFF_EN | \
170 PMCR_FORCE_SPEED_1000 | \
171 PMCR_FORCE_FDX | \
172 PMCR_FORCE_LNK)
173#define PMCR_FIXED_LINK_FC (PMCR_FIXED_LINK | \
174 PMCR_TX_FC_EN | PMCR_RX_FC_EN)
175
176#define MT7530_PMSR_P(x) (0x3008 + (x) * 0x100)
177
178/* Register for MIB */
179#define MT7530_PORT_MIB_COUNTER(x) (0x4000 + (x) * 0x100)
180#define MT7530_MIB_CCR 0x4fe0
181#define CCR_MIB_ENABLE BIT(31)
182#define CCR_RX_OCT_CNT_GOOD BIT(7)
183#define CCR_RX_OCT_CNT_BAD BIT(6)
184#define CCR_TX_OCT_CNT_GOOD BIT(5)
185#define CCR_TX_OCT_CNT_BAD BIT(4)
186#define CCR_MIB_FLUSH (CCR_RX_OCT_CNT_GOOD | \
187 CCR_RX_OCT_CNT_BAD | \
188 CCR_TX_OCT_CNT_GOOD | \
189 CCR_TX_OCT_CNT_BAD)
190#define CCR_MIB_ACTIVATE (CCR_MIB_ENABLE | \
191 CCR_RX_OCT_CNT_GOOD | \
192 CCR_RX_OCT_CNT_BAD | \
193 CCR_TX_OCT_CNT_GOOD | \
194 CCR_TX_OCT_CNT_BAD)
195/* Register for system reset */
196#define MT7530_SYS_CTRL 0x7000
197#define SYS_CTRL_PHY_RST BIT(2)
198#define SYS_CTRL_SW_RST BIT(1)
199#define SYS_CTRL_REG_RST BIT(0)
200
201/* Register for hw trap status */
202#define MT7530_HWTRAP 0x7800
203
204/* Register for hw trap modification */
205#define MT7530_MHWTRAP 0x7804
206#define MHWTRAP_MANUAL BIT(16)
207#define MHWTRAP_P5_MAC_SEL BIT(13)
208#define MHWTRAP_P6_DIS BIT(8)
209#define MHWTRAP_P5_RGMII_MODE BIT(7)
210#define MHWTRAP_P5_DIS BIT(6)
211#define MHWTRAP_PHY_ACCESS BIT(5)
212
213/* Register for TOP signal control */
214#define MT7530_TOP_SIG_CTRL 0x7808
215#define TOP_SIG_CTRL_NORMAL (BIT(17) | BIT(16))
216
217#define MT7530_IO_DRV_CR 0x7810
218#define P5_IO_CLK_DRV(x) ((x) & 0x3)
219#define P5_IO_DATA_DRV(x) (((x) & 0x3) << 4)
220
221#define MT7530_P6ECR 0x7830
222#define P6_INTF_MODE_MASK 0x3
223#define P6_INTF_MODE(x) ((x) & 0x3)
224
225/* Registers for TRGMII on the both side */
226#define MT7530_TRGMII_RCK_CTRL 0x7a00
227#define GSW_TRGMII_RCK_CTRL 0x300
228#define RX_RST BIT(31)
229#define RXC_DQSISEL BIT(30)
230#define DQSI1_TAP_MASK (0x7f << 8)
231#define DQSI0_TAP_MASK 0x7f
232#define DQSI1_TAP(x) (((x) & 0x7f) << 8)
233#define DQSI0_TAP(x) ((x) & 0x7f)
234
235#define MT7530_TRGMII_RCK_RTT 0x7a04
236#define GSW_TRGMII_RCK_RTT 0x304
237#define DQS1_GATE BIT(31)
238#define DQS0_GATE BIT(30)
239
240#define MT7530_TRGMII_RD(x) (0x7a10 + (x) * 8)
241#define GSW_TRGMII_RD(x) (0x310 + (x) * 8)
242#define BSLIP_EN BIT(31)
243#define EDGE_CHK BIT(30)
244#define RD_TAP_MASK 0x7f
245#define RD_TAP(x) ((x) & 0x7f)
246
247#define GSW_TRGMII_TXCTRL 0x340
248#define MT7530_TRGMII_TXCTRL 0x7a40
249#define TRAIN_TXEN BIT(31)
250#define TXC_INV BIT(30)
251#define TX_RST BIT(28)
252
253#define MT7530_TRGMII_TD_ODT(i) (0x7a54 + 8 * (i))
254#define GSW_TRGMII_TD_ODT(i) (0x354 + 8 * (i))
255#define TD_DM_DRVP(x) ((x) & 0xf)
256#define TD_DM_DRVN(x) (((x) & 0xf) << 4)
257
258#define GSW_INTF_MODE 0x390
259#define INTF_MODE_TRGMII BIT(1)
260
261#define MT7530_TRGMII_TCK_CTRL 0x7a78
262#define TCK_TAP(x) (((x) & 0xf) << 8)
263
264#define MT7530_P5RGMIIRXCR 0x7b00
265#define CSR_RGMII_EDGE_ALIGN BIT(8)
266#define CSR_RGMII_RXC_0DEG_CFG(x) ((x) & 0xf)
267
268#define MT7530_P5RGMIITXCR 0x7b04
269#define CSR_RGMII_TXC_CFG(x) ((x) & 0x1f)
270
271#define MT7530_CREV 0x7ffc
272#define CHIP_NAME_SHIFT 16
273#define MT7530_ID 0x7530
274
275/* Registers for core PLL access through mmd indirect */
276#define CORE_PLL_GROUP2 0x401
277#define RG_SYSPLL_EN_NORMAL BIT(15)
278#define RG_SYSPLL_VODEN BIT(14)
279#define RG_SYSPLL_LF BIT(13)
280#define RG_SYSPLL_RST_DLY(x) (((x) & 0x3) << 12)
281#define RG_SYSPLL_LVROD_EN BIT(10)
282#define RG_SYSPLL_PREDIV(x) (((x) & 0x3) << 8)
283#define RG_SYSPLL_POSDIV(x) (((x) & 0x3) << 5)
284#define RG_SYSPLL_FBKSEL BIT(4)
285#define RT_SYSPLL_EN_AFE_OLT BIT(0)
286
287#define CORE_PLL_GROUP4 0x403
288#define RG_SYSPLL_DDSFBK_EN BIT(12)
289#define RG_SYSPLL_BIAS_EN BIT(11)
290#define RG_SYSPLL_BIAS_LPF_EN BIT(10)
291
292#define CORE_PLL_GROUP5 0x404
293#define RG_LCDDS_PCW_NCPO1(x) ((x) & 0xffff)
294
295#define CORE_PLL_GROUP6 0x405
296#define RG_LCDDS_PCW_NCPO0(x) ((x) & 0xffff)
297
298#define CORE_PLL_GROUP7 0x406
299#define RG_LCDDS_PWDB BIT(15)
300#define RG_LCDDS_ISO_EN BIT(13)
301#define RG_LCCDS_C(x) (((x) & 0x7) << 4)
302#define RG_LCDDS_PCW_NCPO_CHG BIT(3)
303
304#define CORE_PLL_GROUP10 0x409
305#define RG_LCDDS_SSC_DELTA(x) ((x) & 0xfff)
306
307#define CORE_PLL_GROUP11 0x40a
308#define RG_LCDDS_SSC_DELTA1(x) ((x) & 0xfff)
309
310#define CORE_GSWPLL_GRP1 0x40d
311#define RG_GSWPLL_PREDIV(x) (((x) & 0x3) << 14)
312#define RG_GSWPLL_POSDIV_200M(x) (((x) & 0x3) << 12)
313#define RG_GSWPLL_EN_PRE BIT(11)
314#define RG_GSWPLL_FBKSEL BIT(10)
315#define RG_GSWPLL_BP BIT(9)
316#define RG_GSWPLL_BR BIT(8)
317#define RG_GSWPLL_FBKDIV_200M(x) ((x) & 0xff)
318
319#define CORE_GSWPLL_GRP2 0x40e
320#define RG_GSWPLL_POSDIV_500M(x) (((x) & 0x3) << 8)
321#define RG_GSWPLL_FBKDIV_500M(x) ((x) & 0xff)
322
323#define CORE_TRGMII_GSW_CLK_CG 0x410
324#define REG_GSWCK_EN BIT(0)
325#define REG_TRGMIICK_EN BIT(1)
326
327#define MIB_DESC(_s, _o, _n) \
328 { \
329 .size = (_s), \
330 .offset = (_o), \
331 .name = (_n), \
332 }
333
334struct mt7530_mib_desc {
335 unsigned int size;
336 unsigned int offset;
337 const char *name;
338};
339
340struct mt7530_fdb {
341 u16 vid;
342 u8 port_mask;
343 u8 aging;
344 u8 mac[6];
345 bool noarp;
346};
347
348struct mt7530_port {
349 bool enable;
350 u32 pm;
351};
352
353/* struct mt7530_priv - This is the main data structure for holding the state
354 * of the driver
355 * @dev: The device pointer
356 * @ds: The pointer to the dsa core structure
357 * @bus: The bus used for the device and built-in PHY
358 * @rstc: The pointer to reset control used by MCM
359 * @ethernet: The regmap used for access TRGMII-based registers
360 * @core_pwr: The power supplied into the core
361 * @io_pwr: The power supplied into the I/O
362 * @reset: The descriptor for GPIO line tied to its reset pin
363 * @mcm: Flag for distinguishing if standalone IC or module
364 * coupling
365 * @ports: Holding the state among ports
366 * @reg_mutex: The lock for protecting among process accessing
367 * registers
368 */
369struct mt7530_priv {
370 struct device *dev;
371 struct dsa_switch *ds;
372 struct mii_bus *bus;
373 struct reset_control *rstc;
374 struct regmap *ethernet;
375 struct regulator *core_pwr;
376 struct regulator *io_pwr;
377 struct gpio_desc *reset;
378 bool mcm;
379
380 struct mt7530_port ports[MT7530_NUM_PORTS];
381 /* protect among processes for registers access*/
382 struct mutex reg_mutex;
383};
384
385struct mt7530_hw_stats {
386 const char *string;
387 u16 reg;
388 u8 sizeof_stat;
389};
390
391struct mt7530_dummy_poll {
392 struct mt7530_priv *priv;
393 u32 reg;
394};
395
396static inline void INIT_MT7530_DUMMY_POLL(struct mt7530_dummy_poll *p,
397 struct mt7530_priv *priv, u32 reg)
398{
399 p->priv = priv;
400 p->reg = reg;
401}
402
403#endif /* __MT7530_H */