xref: /freebsd/sys/arm/allwinner/if_emacreg.h (revision 63a938566d524836885917d95bd491aa4400b181)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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  * $FreeBSD$
29  */
30 
31 #ifndef	__IF_EMACREG_H__
32 #define	__IF_EMACREG_H__
33 
34 /*
35  * EMAC register definitions
36  */
37 #define	EMAC_CTL		0x00
38 #define	EMAC_CTL_RST		(1 << 0)
39 #define	EMAC_CTL_TX_EN		(1 << 1)
40 #define	EMAC_CTL_RX_EN		(1 << 2)
41 
42 #define	EMAC_TX_MODE		0x04
43 #define	EMAC_TX_FLOW		0x08
44 #define	EMAC_TX_CTL0		0x0C
45 #define	EMAC_TX_CTL1		0x10
46 #define	EMAC_TX_INS		0x14
47 #define	EMAC_TX_PL0		0x18
48 #define	EMAC_TX_PL1		0x1C
49 #define	EMAC_TX_STA		0x20
50 #define	EMAC_TX_IO_DATA		0x24
51 #define	EMAC_TX_IO_DATA1	0x28
52 #define	EMAC_TX_TSVL0		0x2C
53 #define	EMAC_TX_TSVH0		0x30
54 #define	EMAC_TX_TSVL1		0x34
55 #define	EMAC_TX_TSVH1		0x38
56 #define	EMAC_TX_FIFO0		(1 << 0)
57 #define	EMAC_TX_FIFO1		(1 << 1)
58 
59 #define	EMAC_RX_CTL		0x3C
60 #define	EMAC_RX_HASH0		0x40
61 #define	EMAC_RX_HASH1		0x44
62 #define	EMAC_RX_STA		0x48
63 #define	EMAC_RX_IO_DATA		0x4C
64 #define	EMAC_RX_FBC		0x50
65 
66 #define	EMAC_INT_CTL		0x54
67 #define	EMAC_INT_STA		0x58
68 #define	EMAC_INT_STA_TX		(EMAC_TX_FIFO0 | EMAC_TX_FIFO1)
69 #define	EMAC_INT_STA_RX		0x100
70 #define	EMAC_INT_EN		(0xf << 0) | (1 << 8)
71 
72 #define	EMAC_MAC_CTL0		0x5C
73 #define	EMAC_MAC_CTL1		0x60
74 #define	EMAC_MAC_IPGT		0x64
75 #define	EMAC_MAC_IPGR		0x68
76 #define	EMAC_MAC_CLRT		0x6C
77 #define	EMAC_MAC_MAXF		0x70
78 #define	EMAC_MAC_SUPP		0x74
79 #define	EMAC_MAC_TEST		0x78
80 #define	EMAC_MAC_MCFG		0x7C
81 #define	EMAC_MAC_MCMD		0x80
82 #define	EMAC_MAC_MADR		0x84
83 #define	EMAC_MAC_MWTD		0x88
84 #define	EMAC_MAC_MRDD		0x8C
85 #define	EMAC_MAC_MIND		0x90
86 #define	EMAC_MAC_SSRR		0x94
87 #define	EMAC_MAC_A0		0x98
88 #define	EMAC_MAC_A1		0x9C
89 #define	EMAC_MAC_A2		0xA0
90 
91 #define	EMAC_SAFX_L0		0xA4
92 #define	EMAC_SAFX_H0		0xA8
93 #define	EMAC_SAFX_L1		0xAC
94 #define	EMAC_SAFX_H1		0xB0
95 #define	EMAC_SAFX_L2		0xB4
96 #define	EMAC_SAFX_H2		0xB8
97 #define	EMAC_SAFX_L3		0xBC
98 #define	EMAC_SAFX_H3		0xC0
99 
100 #define	EMAC_PHY_DUPLEX		(1 << 8)
101 
102 /*
103  * Each received packet has 8 bytes header:
104  * Byte 0: Packet valid flag: 0x01 valid, 0x00 not valid
105  * Byte 1: 0x43 -> Ascii code 'C'
106  * Byte 2: 0x41 -> Ascii code 'A'
107  * Byte 3: 0x4d -> Ascii code 'M'
108  * Byte 4: High byte of received packet's status
109  * Byte 5: Low byte of received packet's status
110  * Byte 6: High byte of packet size
111  * Byte 7: Low byte of packet size
112  */
113 #define	EMAC_PACKET_HEADER	(0x0143414d)
114 
115 /* Aborted frame enable */
116 #define	EMAC_TX_AB_M		(1 << 0)
117 
118 /* 0: Enable CPU mode for TX, 1: DMA */
119 #define	EMAC_TX_TM		~(1 << 1)
120 
121 /* 0: DRQ asserted, 1: DRQ automatically */
122 #define	EMAC_RX_DRQ_MODE	(1 << 1)
123 
124 /* 0: Enable CPU mode for RX, 1: DMA */
125 #define	EMAC_RX_TM		~(1 << 2)
126 
127 /* Pass all Frames */
128 #define	EMAC_RX_PA		(1 << 4)
129 
130 /* Pass Control Frames */
131 #define	EMAC_RX_PCF		(1 << 5)
132 
133 /* Pass Frames with CRC Error */
134 #define	EMAC_RX_PCRCE		(1 << 6)
135 
136 /* Pass Frames with Length Error */
137 #define	EMAC_RX_PLE		(1 << 7)
138 
139 /* Pass Frames length out of range */
140 #define	EMAC_RX_POR		(1 << 8)
141 
142 /* Accept unicast Packets */
143 #define	EMAC_RX_UCAD		(1 << 16)
144 
145 /* Enable DA Filtering */
146 #define	EMAC_RX_DAF		(1 << 17)
147 
148 /* Accept multicast Packets */
149 #define	EMAC_RX_MCO		(1 << 20)
150 
151 /* Enable Hash filter */
152 #define	EMAC_RX_MHF		(1 << 21)
153 
154 /* Accept Broadcast Packets */
155 #define	EMAC_RX_BCO		(1 << 22)
156 
157 /* Enable SA Filtering */
158 #define	EMAC_RX_SAF		(1 << 24)
159 
160 /* Inverse Filtering */
161 #define	EMAC_RX_SAIF		(1 << 25)
162 
163 #define	EMAC_RX_SETUP		(EMAC_RX_POR | EMAC_RX_UCAD | \
164     EMAC_RX_DAF | EMAC_RX_MCO | EMAC_RX_BCO)
165 
166 /* Enable Receive Flow Control */
167 #define	EMAC_MAC_CTL0_RFC	(1 << 2)
168 
169 /* Enable Transmit Flow Control */
170 #define	EMAC_MAC_CTL0_TFC	(1 << 3)
171 
172 /* Enable soft reset */
173 #define	EMAC_MAC_CTL0_SOFT_RST	(1 << 15)
174 
175 #define	EMAC_MAC_CTL0_SETUP	(EMAC_MAC_CTL0_RFC | EMAC_MAC_CTL0_TFC)
176 
177 /* Enable duplex */
178 #define	EMAC_MAC_CTL1_DUP	(1 << 0)
179 
180 /* Enable MAC Frame Length Checking */
181 #define	EMAC_MAC_CTL1_FLC	(1 << 1)
182 
183 /* Enable Huge Frame */
184 #define	EMAC_MAC_CTL1_HF	(1 << 2)
185 
186 /* Enable MAC Delayed CRC */
187 #define	EMAC_MAC_CTL1_DCRC	(1 << 3)
188 
189 /* Enable MAC CRC */
190 #define	EMAC_MAC_CTL1_CRC	(1 << 4)
191 
192 /* Enable MAC PAD Short frames */
193 #define	EMAC_MAC_CTL1_PC	(1 << 5)
194 
195 /* Enable MAC PAD Short frames and append CRC */
196 #define	EMAC_MAC_CTL1_VC	(1 << 6)
197 
198 /* Enable MAC auto detect Short frames */
199 #define	EMAC_MAC_CTL1_ADP	(1 << 7)
200 
201 #define	EMAC_MAC_CTL1_PRE	(1 << 8)
202 #define	EMAC_MAC_CTL1_LPE	(1 << 9)
203 
204 /* Enable no back off */
205 #define	EMAC_MAC_CTL1_NB	(1 << 12)
206 
207 #define	EMAC_MAC_CTL1_BNB	(1 << 13)
208 #define	EMAC_MAC_CTL1_ED	(1 << 14)
209 
210 #define	EMAC_MAC_CTL1_SETUP	(EMAC_MAC_CTL1_FLC | EMAC_MAC_CTL1_CRC | \
211     EMAC_MAC_CTL1_PC)
212 
213 /* half duplex */
214 #define	EMAC_MAC_IPGT_HD	0x12
215 
216 /* full duplex */
217 #define	EMAC_MAC_IPGT_FD	0x15
218 
219 #define	EMAC_MAC_NBTB_IPG1	0xC
220 #define	EMAC_MAC_NBTB_IPG2	0x12
221 
222 #define	EMAC_MAC_CW		0x37
223 #define	EMAC_MAC_RM		0xF
224 
225 #define	EMAC_MAC_MFL		0x0600
226 
227 /* Receive status */
228 #define	EMAC_CRCERR		(1 << 4)
229 #define	EMAC_LENERR		(3 << 5)
230 #define	EMAC_PKT_OK		(1 << 7)
231 
232 #define	EMAC_RX_FLUSH_FIFO	(1 << 3)
233 #define	EMAC_PHY_RESET		(1 << 15)
234 #define	EMAC_PHY_PWRDOWN	(1 << 11)
235 
236 #define	EMAC_PROC_MIN		16
237 #define	EMAC_PROC_MAX		255
238 #define	EMAC_PROC_DEFAULT	64
239 
240 #define	EMAC_LOCK(cs)		mtx_lock(&(sc)->emac_mtx)
241 #define	EMAC_UNLOCK(cs)		mtx_unlock(&(sc)->emac_mtx)
242 #define	EMAC_ASSERT_LOCKED(sc)	mtx_assert(&(sc)->emac_mtx, MA_OWNED);
243 
244 #endif	/* __IF_EMACREG_H__ */
245