xref: /freebsd/sys/arm/allwinner/if_emacreg.h (revision 2e3507c25e42292b45a5482e116d278f5515d04d)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (C) 2013 Ganbold Tsagaankhuu <ganbold@freebsd.org>
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #ifndef	__IF_EMACREG_H__
30 #define	__IF_EMACREG_H__
31 
32 /*
33  * EMAC register definitions
34  */
35 #define	EMAC_CTL		0x00
36 #define	EMAC_CTL_RST		(1 << 0)
37 #define	EMAC_CTL_TX_EN		(1 << 1)
38 #define	EMAC_CTL_RX_EN		(1 << 2)
39 
40 #define	EMAC_TX_MODE		0x04
41 #define	EMAC_TX_FLOW		0x08
42 #define	EMAC_TX_CTL0		0x0C
43 #define	EMAC_TX_CTL1		0x10
44 #define	EMAC_TX_INS		0x14
45 #define	EMAC_TX_PL0		0x18
46 #define	EMAC_TX_PL1		0x1C
47 #define	EMAC_TX_STA		0x20
48 #define	EMAC_TX_IO_DATA		0x24
49 #define	EMAC_TX_IO_DATA1	0x28
50 #define	EMAC_TX_TSVL0		0x2C
51 #define	EMAC_TX_TSVH0		0x30
52 #define	EMAC_TX_TSVL1		0x34
53 #define	EMAC_TX_TSVH1		0x38
54 #define	EMAC_TX_FIFO0		(1 << 0)
55 #define	EMAC_TX_FIFO1		(1 << 1)
56 
57 #define	EMAC_RX_CTL		0x3C
58 #define	EMAC_RX_HASH0		0x40
59 #define	EMAC_RX_HASH1		0x44
60 #define	EMAC_RX_STA		0x48
61 #define	EMAC_RX_IO_DATA		0x4C
62 #define	EMAC_RX_FBC		0x50
63 
64 #define	EMAC_INT_CTL		0x54
65 #define	EMAC_INT_STA		0x58
66 #define	EMAC_INT_STA_TX		(EMAC_TX_FIFO0 | EMAC_TX_FIFO1)
67 #define	EMAC_INT_STA_RX		0x100
68 #define	EMAC_INT_EN		(0xf << 0) | (1 << 8)
69 
70 #define	EMAC_MAC_CTL0		0x5C
71 #define	EMAC_MAC_CTL1		0x60
72 #define	EMAC_MAC_IPGT		0x64
73 #define	EMAC_MAC_IPGR		0x68
74 #define	EMAC_MAC_CLRT		0x6C
75 #define	EMAC_MAC_MAXF		0x70
76 #define	EMAC_MAC_SUPP		0x74
77 #define	EMAC_MAC_TEST		0x78
78 #define	EMAC_MAC_MCFG		0x7C
79 #define	EMAC_MAC_MCMD		0x80
80 #define	EMAC_MAC_MADR		0x84
81 #define	EMAC_MAC_MWTD		0x88
82 #define	EMAC_MAC_MRDD		0x8C
83 #define	EMAC_MAC_MIND		0x90
84 #define	EMAC_MAC_SSRR		0x94
85 #define	EMAC_MAC_A0		0x98
86 #define	EMAC_MAC_A1		0x9C
87 #define	EMAC_MAC_A2		0xA0
88 
89 #define	EMAC_SAFX_L0		0xA4
90 #define	EMAC_SAFX_H0		0xA8
91 #define	EMAC_SAFX_L1		0xAC
92 #define	EMAC_SAFX_H1		0xB0
93 #define	EMAC_SAFX_L2		0xB4
94 #define	EMAC_SAFX_H2		0xB8
95 #define	EMAC_SAFX_L3		0xBC
96 #define	EMAC_SAFX_H3		0xC0
97 
98 #define	EMAC_PHY_DUPLEX		(1 << 8)
99 
100 /*
101  * Each received packet has 8 bytes header:
102  * Byte 0: Packet valid flag: 0x01 valid, 0x00 not valid
103  * Byte 1: 0x43 -> Ascii code 'C'
104  * Byte 2: 0x41 -> Ascii code 'A'
105  * Byte 3: 0x4d -> Ascii code 'M'
106  * Byte 4: High byte of received packet's status
107  * Byte 5: Low byte of received packet's status
108  * Byte 6: High byte of packet size
109  * Byte 7: Low byte of packet size
110  */
111 #define	EMAC_PACKET_HEADER	(0x0143414d)
112 
113 /* Aborted frame enable */
114 #define	EMAC_TX_AB_M		(1 << 0)
115 
116 /* 0: Enable CPU mode for TX, 1: DMA */
117 #define	EMAC_TX_TM		~(1 << 1)
118 
119 /* 0: DRQ asserted, 1: DRQ automatically */
120 #define	EMAC_RX_DRQ_MODE	(1 << 1)
121 
122 /* 0: Enable CPU mode for RX, 1: DMA */
123 #define	EMAC_RX_TM		~(1 << 2)
124 
125 /* Pass all Frames */
126 #define	EMAC_RX_PA		(1 << 4)
127 
128 /* Pass Control Frames */
129 #define	EMAC_RX_PCF		(1 << 5)
130 
131 /* Pass Frames with CRC Error */
132 #define	EMAC_RX_PCRCE		(1 << 6)
133 
134 /* Pass Frames with Length Error */
135 #define	EMAC_RX_PLE		(1 << 7)
136 
137 /* Pass Frames length out of range */
138 #define	EMAC_RX_POR		(1 << 8)
139 
140 /* Accept unicast Packets */
141 #define	EMAC_RX_UCAD		(1 << 16)
142 
143 /* Enable DA Filtering */
144 #define	EMAC_RX_DAF		(1 << 17)
145 
146 /* Accept multicast Packets */
147 #define	EMAC_RX_MCO		(1 << 20)
148 
149 /* Enable Hash filter */
150 #define	EMAC_RX_MHF		(1 << 21)
151 
152 /* Accept Broadcast Packets */
153 #define	EMAC_RX_BCO		(1 << 22)
154 
155 /* Enable SA Filtering */
156 #define	EMAC_RX_SAF		(1 << 24)
157 
158 /* Inverse Filtering */
159 #define	EMAC_RX_SAIF		(1 << 25)
160 
161 #define	EMAC_RX_SETUP		(EMAC_RX_POR | EMAC_RX_UCAD | \
162     EMAC_RX_DAF | EMAC_RX_MCO | EMAC_RX_BCO)
163 
164 /* Enable Receive Flow Control */
165 #define	EMAC_MAC_CTL0_RFC	(1 << 2)
166 
167 /* Enable Transmit Flow Control */
168 #define	EMAC_MAC_CTL0_TFC	(1 << 3)
169 
170 /* Enable soft reset */
171 #define	EMAC_MAC_CTL0_SOFT_RST	(1 << 15)
172 
173 #define	EMAC_MAC_CTL0_SETUP	(EMAC_MAC_CTL0_RFC | EMAC_MAC_CTL0_TFC)
174 
175 /* Enable duplex */
176 #define	EMAC_MAC_CTL1_DUP	(1 << 0)
177 
178 /* Enable MAC Frame Length Checking */
179 #define	EMAC_MAC_CTL1_FLC	(1 << 1)
180 
181 /* Enable Huge Frame */
182 #define	EMAC_MAC_CTL1_HF	(1 << 2)
183 
184 /* Enable MAC Delayed CRC */
185 #define	EMAC_MAC_CTL1_DCRC	(1 << 3)
186 
187 /* Enable MAC CRC */
188 #define	EMAC_MAC_CTL1_CRC	(1 << 4)
189 
190 /* Enable MAC PAD Short frames */
191 #define	EMAC_MAC_CTL1_PC	(1 << 5)
192 
193 /* Enable MAC PAD Short frames and append CRC */
194 #define	EMAC_MAC_CTL1_VC	(1 << 6)
195 
196 /* Enable MAC auto detect Short frames */
197 #define	EMAC_MAC_CTL1_ADP	(1 << 7)
198 
199 #define	EMAC_MAC_CTL1_PRE	(1 << 8)
200 #define	EMAC_MAC_CTL1_LPE	(1 << 9)
201 
202 /* Enable no back off */
203 #define	EMAC_MAC_CTL1_NB	(1 << 12)
204 
205 #define	EMAC_MAC_CTL1_BNB	(1 << 13)
206 #define	EMAC_MAC_CTL1_ED	(1 << 14)
207 
208 #define	EMAC_MAC_CTL1_SETUP	(EMAC_MAC_CTL1_FLC | EMAC_MAC_CTL1_CRC | \
209     EMAC_MAC_CTL1_PC)
210 
211 /* half duplex */
212 #define	EMAC_MAC_IPGT_HD	0x12
213 
214 /* full duplex */
215 #define	EMAC_MAC_IPGT_FD	0x15
216 
217 #define	EMAC_MAC_NBTB_IPG1	0xC
218 #define	EMAC_MAC_NBTB_IPG2	0x12
219 
220 #define	EMAC_MAC_CW		0x37
221 #define	EMAC_MAC_RM		0xF
222 
223 #define	EMAC_MAC_MFL		0x0600
224 
225 /* Receive status */
226 #define	EMAC_CRCERR		(1 << 4)
227 #define	EMAC_LENERR		(3 << 5)
228 #define	EMAC_PKT_OK		(1 << 7)
229 
230 #define	EMAC_RX_FLUSH_FIFO	(1 << 3)
231 #define	EMAC_PHY_RESET		(1 << 15)
232 #define	EMAC_PHY_PWRDOWN	(1 << 11)
233 
234 #define	EMAC_PROC_MIN		16
235 #define	EMAC_PROC_MAX		255
236 #define	EMAC_PROC_DEFAULT	64
237 
238 #define	EMAC_LOCK(cs)		mtx_lock(&(sc)->emac_mtx)
239 #define	EMAC_UNLOCK(cs)		mtx_unlock(&(sc)->emac_mtx)
240 #define	EMAC_ASSERT_LOCKED(sc)	mtx_assert(&(sc)->emac_mtx, MA_OWNED);
241 
242 #endif	/* __IF_EMACREG_H__ */
243