4 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
5 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
7 * SPDX-License-Identifier: GPL-2.0+
13 /* FlexCan Message Buffer */
14 typedef struct can_msgbuf_ctrl {
16 u8 tmstamp; /* 0x00 Timestamp */
17 u8 ctrl; /* 0x01 Control */
18 u16 idh; /* 0x02 ID High */
19 u16 idl; /* 0x04 ID High */
20 u8 data[8]; /* 0x06 8 Byte Data Field */
23 u16 ctrl; /* 0x00 Control/Status */
24 u16 tmstamp; /* 0x02 Timestamp */
25 u32 id; /* 0x04 Identifier */
26 u8 data[8]; /* 0x08 8 Byte Data Field */
32 #define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x0F) << 4)
33 #define CAN_MSGBUF_CTRL_CODE_MASK (0x0F)
34 #define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x0F)
35 #define CAN_MSGBUF_CTRL_LEN_MASK (0xF0)
38 #define CAN_MSGBUF_IDH_STD(x) (((x) & 0x07FF) << 5)
39 #define CAN_MSGBUF_IDH_STD_MASK (0xE003FFFF)
40 #define CAN_MSGBUF_IDH_SRR (0x0010)
41 #define CAN_MSGBUF_IDH_IDE (0x0080)
42 #define CAN_MSGBUF_IDH_EXTH(x) ((x) & 0x07)
43 #define CAN_MSGBUF_IDH_EXTH_MASK (0xFFF8)
44 #define CAN_MSGBUF_IDL_EXTL(x) (((x) & 0x7FFF) << 1)
45 #define CAN_MSGBUF_IDL_EXTL_MASK (0xFFFE)
46 #define CAN_MSGBUF_IDL_RTR (0x0001)
49 #define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x000F) << 8)
50 #define CAN_MSGBUF_CTRL_CODE_MASK (0xF0FF)
51 #define CAN_MSGBUF_CTRL_SRR (0x0040)
52 #define CAN_MSGBUF_CTRL_IDE (0x0020)
53 #define CAN_MSGBUF_CTRL_RTR (0x0010)
54 #define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x000F)
55 #define CAN_MSGBUF_CTRL_LEN_MASK (0xFFF0)
58 #define CAN_MSGBUF_ID_STD(x) (((x) & 0x000007FF) << 18)
59 #define CAN_MSGBUF_ID_STD_MASK (0xE003FFFF)
60 #define CAN_MSGBUF_ID_EXT(x) ((x) & 0x0003FFFF)
61 #define CAN_MSGBUF_ID_EXT_MASK (0xFFFC0000)
65 typedef struct can_ctrl {
66 u32 mcr; /* 0x00 Module Configuration */
67 u32 ctrl; /* 0x04 Control */
68 u32 timer; /* 0x08 Free Running Timer */
70 u32 rxgmsk; /* 0x10 Rx Global Mask */
71 u32 rx14msk; /* 0x14 RxBuffer 14 Mask */
72 u32 rx15msk; /* 0x18 RxBuffer 15 Mask */
75 u16 errstat; /* 0x20 Error and status */
76 u16 imsk; /* 0x22 Interrupt Mask */
77 u16 iflag; /* 0x24 Interrupt Flag */
78 u16 errcnt; /* 0x26 Error Counter */
79 u32 res3[3]; /* 0x28 - 0x33 */
82 u16 errcnt; /* 0x1E Error Counter */
84 u16 errstat; /* 0x22 Error and status */
86 u32 imsk; /* 0x28 Interrupt Mask */
88 u16 iflag; /* 0x30 Interrupt Flag */
90 u32 res6[19]; /* 0x34 - 0x7F */
91 void *msgbuf; /* 0x80 Message Buffer 0-15 */
95 #define CAN_MCR_MDIS (0x80000000)
96 #define CAN_MCR_FRZ (0x40000000)
97 #define CAN_MCR_HALT (0x10000000)
98 #define CAN_MCR_NORDY (0x08000000)
99 #define CAN_MCF_WAKEMSK (0x04000000) /* 5282 */
100 #define CAN_MCR_SOFTRST (0x02000000)
101 #define CAN_MCR_FRZACK (0x01000000)
102 #define CAN_MCR_SUPV (0x00800000)
103 #define CAN_MCR_SELFWAKE (0x00400000) /* 5282 */
104 #define CAN_MCR_APS (0x00200000) /* 5282 */
105 #define CAN_MCR_LPMACK (0x00100000)
106 #define CAN_MCF_BCC (0x00010000)
107 #define CAN_MCR_MAXMB(x) ((x) & 0x0F)
108 #define CAN_MCR_MAXMB_MASK (0xFFFFFFF0)
111 #define CAN_CTRL_PRESDIV(x) (((x) & 0xFF) << 24)
112 #define CAN_CTRL_PRESDIV_MASK (0x00FFFFFF)
113 #define CAN_CTRL_RJW(x) (((x) & 0x03) << 22)
114 #define CAN_CTRL_RJW_MASK (0xFF3FFFFF)
115 #define CAN_CTRL_PSEG1(x) (((x) & 0x07) << 19)
116 #define CAN_CTRL_PSEG1_MASK (0xFFC7FFFF)
117 #define CAN_CTRL_PSEG2(x) (((x) & 0x07) << 16)
118 #define CAN_CTRL_PSEG2_MASK (0xFFF8FFFF)
119 #define CAN_CTRL_BOFFMSK (0x00008000)
120 #define CAN_CTRL_ERRMSK (0x00004000)
121 #define CAN_CTRL_CLKSRC (0x00002000)
122 #define CAN_CTRL_LPB (0x00001000)
123 #define CAN_CTRL_RXMODE (0x00000400) /* 5282 */
124 #define CAN_CTRL_TXMODE(x) (((x) & 0x03) << 8) /* 5282 */
125 #define CAN_CTRL_TXMODE_MASK (0xFFFFFCFF) /* 5282 */
126 #define CAN_CTRL_TXMODE_CAN0 (0x00000000) /* 5282 */
127 #define CAN_CTRL_TXMODE_CAN1 (0x00000100) /* 5282 */
128 #define CAN_CTRL_TXMODE_OPEN (0x00000200) /* 5282 */
129 #define CAN_CTRL_SMP (0x00000080)
130 #define CAN_CTRL_BOFFREC (0x00000040)
131 #define CAN_CTRL_TSYNC (0x00000020)
132 #define CAN_CTRL_LBUF (0x00000010)
133 #define CAN_CTRL_LOM (0x00000008)
134 #define CAN_CTRL_PROPSEG(x) ((x) & 0x07)
135 #define CAN_CTRL_PROPSEG_MASK (0xFFFFFFF8)
138 /* Note: PRESDIV, RJW, PSG1, and PSG2 are part of timer in 5282 */
139 #define CAN_TIMER(x) ((x) & 0xFFFF)
140 #define CAN_TIMER_MASK (0xFFFF0000)
144 #define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 21)
145 #define CAN_RXGMSK_MI_STD_MASK (0x001FFFFF)
146 #define CAN_RXGMSK_MI_EXT(x) (((x) & 0x0003FFFF) << 1)
147 #define CAN_RXGMSK_MI_EXT_MASK (0xFFF80001)
149 #define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 18)
150 #define CAN_RXGMSK_MI_STD_MASK (0xE003FFFF)
151 #define CAN_RXGMSK_MI_EXT(x) ((x) & 0x0003FFFF)
152 #define CAN_RXGMSK_MI_EXT_MASK (0xFFFC0000)
156 #define CAN_ERRCNT_RXECTR(x) (((x) & 0xFF) << 8)
157 #define CAN_ERRCNT_RXECTR_MASK (0x00FF)
158 #define CAN_ERRCNT_TXECTR(x) ((x) & 0xFF)
159 #define CAN_ERRCNT_TXECTR_MASK (0xFF00)
162 #define CAN_ERRSTAT_BITERR1 (0x8000)
163 #define CAN_ERRSTAT_BITERR0 (0x4000)
164 #define CAN_ERRSTAT_ACKERR (0x2000)
165 #define CAN_ERRSTAT_CRCERR (0x1000)
166 #define CAN_ERRSTAT_FRMERR (0x0800)
167 #define CAN_ERRSTAT_STFERR (0x0400)
168 #define CAN_ERRSTAT_TXWRN (0x0200)
169 #define CAN_ERRSTAT_RXWRN (0x0100)
170 #define CAN_ERRSTAT_IDLE (0x0080)
171 #define CAN_ERRSTAT_TXRX (0x0040)
172 #define CAN_ERRSTAT_FLT_MASK (0xFFCF)
173 #define CAN_ERRSTAT_FLT_BUSOFF (0x0020)
174 #define CAN_ERRSTAT_FLT_PASSIVE (0x0010)
175 #define CAN_ERRSTAT_FLT_ACTIVE (0x0000)
177 #define CAN_ERRSTAT_BOFFINT (0x0004)
178 #define CAN_ERRSTAT_ERRINT (0x0002)
180 #define CAN_ERRSTAT_ERRINT (0x0004)
181 #define CAN_ERRSTAT_BOFFINT (0x0002)
182 #define CAN_ERRSTAT_WAKEINT (0x0001)
187 #define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFFFFFF))
188 #define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x)
190 #define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFF))
191 #define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x)
196 #define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFFFFFF))
197 #define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x)
199 #define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFF))
200 #define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x)
203 #endif /* __FLEXCAN_H__ */