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1 | /* |
2 | * Flex CAN Memory Map | |
3 | * | |
4 | * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. | |
5 | * TsiChung Liew (Tsi-Chung.Liew@freescale.com) | |
6 | * | |
7 | * See file CREDITS for list of people who contributed to this | |
8 | * project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation; either version 2 of | |
13 | * the License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
23 | * MA 02111-1307 USA | |
24 | */ | |
25 | ||
26 | #ifndef __FLEXCAN_H__ | |
27 | #define __FLEXCAN_H__ | |
28 | ||
29 | /* FlexCan Message Buffer */ | |
30 | typedef struct can_msgbuf_ctrl { | |
31 | #ifdef CONFIG_M5282 | |
32 | u8 tmstamp; /* 0x00 Timestamp */ | |
33 | u8 ctrl; /* 0x01 Control */ | |
34 | u16 idh; /* 0x02 ID High */ | |
35 | u16 idl; /* 0x04 ID High */ | |
36 | u8 data[8]; /* 0x06 8 Byte Data Field */ | |
37 | u16 res; /* 0x0E */ | |
38 | #else | |
39 | u16 ctrl; /* 0x00 Control/Status */ | |
40 | u16 tmstamp; /* 0x02 Timestamp */ | |
41 | u32 id; /* 0x04 Identifier */ | |
42 | u8 data[8]; /* 0x08 8 Byte Data Field */ | |
43 | #endif | |
44 | } can_msg_t; | |
45 | ||
46 | #ifdef CONFIG_M5282 | |
47 | /* MSGBUF CTRL */ | |
48 | #define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x0F) << 4) | |
49 | #define CAN_MSGBUF_CTRL_CODE_MASK (0x0F) | |
50 | #define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x0F) | |
51 | #define CAN_MSGBUF_CTRL_LEN_MASK (0xF0) | |
52 | ||
53 | /* MSGBUF ID */ | |
54 | #define CAN_MSGBUF_IDH_STD(x) (((x) & 0x07FF) << 5) | |
55 | #define CAN_MSGBUF_IDH_STD_MASK (0xE003FFFF) | |
56 | #define CAN_MSGBUF_IDH_SRR (0x0010) | |
57 | #define CAN_MSGBUF_IDH_IDE (0x0080) | |
58 | #define CAN_MSGBUF_IDH_EXTH(x) ((x) & 0x07) | |
59 | #define CAN_MSGBUF_IDH_EXTH_MASK (0xFFF8) | |
60 | #define CAN_MSGBUF_IDL_EXTL(x) (((x) & 0x7FFF) << 1) | |
61 | #define CAN_MSGBUF_IDL_EXTL_MASK (0xFFFE) | |
62 | #define CAN_MSGBUF_IDL_RTR (0x0001) | |
63 | #else | |
64 | /* MSGBUF CTRL */ | |
65 | #define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x000F) << 8) | |
66 | #define CAN_MSGBUF_CTRL_CODE_MASK (0xF0FF) | |
67 | #define CAN_MSGBUF_CTRL_SRR (0x0040) | |
68 | #define CAN_MSGBUF_CTRL_IDE (0x0020) | |
69 | #define CAN_MSGBUF_CTRL_RTR (0x0010) | |
70 | #define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x000F) | |
71 | #define CAN_MSGBUF_CTRL_LEN_MASK (0xFFF0) | |
72 | ||
73 | /* MSGBUF ID */ | |
74 | #define CAN_MSGBUF_ID_STD(x) (((x) & 0x000007FF) << 18) | |
75 | #define CAN_MSGBUF_ID_STD_MASK (0xE003FFFF) | |
76 | #define CAN_MSGBUF_ID_EXT(x) ((x) & 0x0003FFFF) | |
77 | #define CAN_MSGBUF_ID_EXT_MASK (0xFFFC0000) | |
78 | #endif | |
79 | ||
80 | /* FlexCan module */ | |
81 | typedef struct can_ctrl { | |
82 | u32 mcr; /* 0x00 Module Configuration */ | |
83 | u32 ctrl; /* 0x04 Control */ | |
84 | u32 timer; /* 0x08 Free Running Timer */ | |
85 | u32 res1; /* 0x0C */ | |
86 | u32 rxgmsk; /* 0x10 Rx Global Mask */ | |
87 | u32 rx14msk; /* 0x14 RxBuffer 14 Mask */ | |
88 | u32 rx15msk; /* 0x18 RxBuffer 15 Mask */ | |
89 | #ifdef CONFIG_M5282 | |
90 | u32 res2; /* 0x1C */ | |
91 | u16 errstat; /* 0x20 Error and status */ | |
92 | u16 imsk; /* 0x22 Interrupt Mask */ | |
93 | u16 iflag; /* 0x24 Interrupt Flag */ | |
94 | u16 errcnt; /* 0x26 Error Counter */ | |
95 | u32 res3[3]; /* 0x28 - 0x33 */ | |
96 | #else | |
97 | u16 res2; /* 0x1C */ | |
98 | u16 errcnt; /* 0x1E Error Counter */ | |
99 | u16 res3; /* 0x20 */ | |
100 | u16 errstat; /* 0x22 Error and status */ | |
101 | u32 res4; /* 0x24 */ | |
102 | u32 imsk; /* 0x28 Interrupt Mask */ | |
103 | u32 res5; /* 0x2C */ | |
104 | u16 iflag; /* 0x30 Interrupt Flag */ | |
105 | #endif | |
106 | u32 res6[19]; /* 0x34 - 0x7F */ | |
107 | void *msgbuf; /* 0x80 Message Buffer 0-15 */ | |
108 | } can_t; | |
109 | ||
110 | /* MCR */ | |
111 | #define CAN_MCR_MDIS (0x80000000) | |
112 | #define CAN_MCR_FRZ (0x40000000) | |
113 | #define CAN_MCR_HALT (0x10000000) | |
114 | #define CAN_MCR_NORDY (0x08000000) | |
115 | #define CAN_MCF_WAKEMSK (0x04000000) /* 5282 */ | |
116 | #define CAN_MCR_SOFTRST (0x02000000) | |
117 | #define CAN_MCR_FRZACK (0x01000000) | |
118 | #define CAN_MCR_SUPV (0x00800000) | |
119 | #define CAN_MCR_SELFWAKE (0x00400000) /* 5282 */ | |
120 | #define CAN_MCR_APS (0x00200000) /* 5282 */ | |
121 | #define CAN_MCR_LPMACK (0x00100000) | |
122 | #define CAN_MCF_BCC (0x00010000) | |
123 | #define CAN_MCR_MAXMB(x) ((x) & 0x0F) | |
124 | #define CAN_MCR_MAXMB_MASK (0xFFFFFFF0) | |
125 | ||
126 | /* CTRL */ | |
127 | #define CAN_CTRL_PRESDIV(x) (((x) & 0xFF) << 24) | |
128 | #define CAN_CTRL_PRESDIV_MASK (0x00FFFFFF) | |
129 | #define CAN_CTRL_RJW(x) (((x) & 0x03) << 22) | |
130 | #define CAN_CTRL_RJW_MASK (0xFF3FFFFF) | |
131 | #define CAN_CTRL_PSEG1(x) (((x) & 0x07) << 19) | |
132 | #define CAN_CTRL_PSEG1_MASK (0xFFC7FFFF) | |
133 | #define CAN_CTRL_PSEG2(x) (((x) & 0x07) << 16) | |
134 | #define CAN_CTRL_PSEG2_MASK (0xFFF8FFFF) | |
135 | #define CAN_CTRL_BOFFMSK (0x00008000) | |
136 | #define CAN_CTRL_ERRMSK (0x00004000) | |
137 | #define CAN_CTRL_CLKSRC (0x00002000) | |
138 | #define CAN_CTRL_LPB (0x00001000) | |
139 | #define CAN_CTRL_RXMODE (0x00000400) /* 5282 */ | |
140 | #define CAN_CTRL_TXMODE(x) (((x) & 0x03) << 8) /* 5282 */ | |
141 | #define CAN_CTRL_TXMODE_MASK (0xFFFFFCFF) /* 5282 */ | |
142 | #define CAN_CTRL_TXMODE_CAN0 (0x00000000) /* 5282 */ | |
143 | #define CAN_CTRL_TXMODE_CAN1 (0x00000100) /* 5282 */ | |
144 | #define CAN_CTRL_TXMODE_OPEN (0x00000200) /* 5282 */ | |
145 | #define CAN_CTRL_SMP (0x00000080) | |
146 | #define CAN_CTRL_BOFFREC (0x00000040) | |
147 | #define CAN_CTRL_TSYNC (0x00000020) | |
148 | #define CAN_CTRL_LBUF (0x00000010) | |
149 | #define CAN_CTRL_LOM (0x00000008) | |
150 | #define CAN_CTRL_PROPSEG(x) ((x) & 0x07) | |
151 | #define CAN_CTRL_PROPSEG_MASK (0xFFFFFFF8) | |
152 | ||
153 | /* TIMER */ | |
154 | /* Note: PRESDIV, RJW, PSG1, and PSG2 are part of timer in 5282 */ | |
155 | #define CAN_TIMER(x) ((x) & 0xFFFF) | |
156 | #define CAN_TIMER_MASK (0xFFFF0000) | |
157 | ||
158 | /* RXGMASK */ | |
159 | #ifdef CONFIG_M5282 | |
160 | #define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 21) | |
161 | #define CAN_RXGMSK_MI_STD_MASK (0x001FFFFF) | |
162 | #define CAN_RXGMSK_MI_EXT(x) (((x) & 0x0003FFFF) << 1) | |
163 | #define CAN_RXGMSK_MI_EXT_MASK (0xFFF80001) | |
164 | #else | |
165 | #define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 18) | |
166 | #define CAN_RXGMSK_MI_STD_MASK (0xE003FFFF) | |
167 | #define CAN_RXGMSK_MI_EXT(x) ((x) & 0x0003FFFF) | |
168 | #define CAN_RXGMSK_MI_EXT_MASK (0xFFFC0000) | |
169 | #endif | |
170 | ||
171 | /* ERRCNT */ | |
172 | #define CAN_ERRCNT_RXECTR(x) (((x) & 0xFF) << 8) | |
173 | #define CAN_ERRCNT_RXECTR_MASK (0x00FF) | |
174 | #define CAN_ERRCNT_TXECTR(x) ((x) & 0xFF) | |
175 | #define CAN_ERRCNT_TXECTR_MASK (0xFF00) | |
176 | ||
177 | /* ERRSTAT */ | |
178 | #define CAN_ERRSTAT_BITERR1 (0x8000) | |
179 | #define CAN_ERRSTAT_BITERR0 (0x4000) | |
180 | #define CAN_ERRSTAT_ACKERR (0x2000) | |
181 | #define CAN_ERRSTAT_CRCERR (0x1000) | |
182 | #define CAN_ERRSTAT_FRMERR (0x0800) | |
183 | #define CAN_ERRSTAT_STFERR (0x0400) | |
184 | #define CAN_ERRSTAT_TXWRN (0x0200) | |
185 | #define CAN_ERRSTAT_RXWRN (0x0100) | |
186 | #define CAN_ERRSTAT_IDLE (0x0080) | |
187 | #define CAN_ERRSTAT_TXRX (0x0040) | |
188 | #define CAN_ERRSTAT_FLT_MASK (0xFFCF) | |
189 | #define CAN_ERRSTAT_FLT_BUSOFF (0x0020) | |
190 | #define CAN_ERRSTAT_FLT_PASSIVE (0x0010) | |
191 | #define CAN_ERRSTAT_FLT_ACTIVE (0x0000) | |
192 | #ifdef CONFIG_M5282 | |
193 | #define CAN_ERRSTAT_BOFFINT (0x0004) | |
194 | #define CAN_ERRSTAT_ERRINT (0x0002) | |
195 | #else | |
196 | #define CAN_ERRSTAT_ERRINT (0x0004) | |
197 | #define CAN_ERRSTAT_BOFFINT (0x0002) | |
198 | #define CAN_ERRSTAT_WAKEINT (0x0001) | |
199 | #endif | |
200 | ||
201 | /* IMASK */ | |
202 | #ifdef CONFIG_M5253 | |
203 | #define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFFFFFF)) | |
204 | #define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x) | |
205 | #else | |
206 | #define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFF)) | |
207 | #define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x) | |
208 | #endif | |
209 | ||
210 | /* IFLAG */ | |
211 | #ifdef CONFIG_M5253 | |
212 | #define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFFFFFF)) | |
213 | #define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x) | |
214 | #else | |
215 | #define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFF)) | |
216 | #define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x) | |
217 | #endif | |
218 | ||
219 | #endif /* __FLEXCAN_H__ */ |