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 * SPDX-License-Identifier: GPL-2.0+ 8 */ 9 10#ifndef __FLEXCAN_H__ 11#define __FLEXCAN_H__ 12 13/* FlexCan Message Buffer */ 14typedef struct can_msgbuf_ctrl { 15#ifdef CONFIG_M5282 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 */ 21 u16 res; /* 0x0E */ 22#else 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 */ 27#endif 28} can_msg_t; 29 30#ifdef CONFIG_M5282 31/* MSGBUF CTRL */ 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) 36 37/* MSGBUF ID */ 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) 47#else 48/* MSGBUF CTRL */ 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) 56 57/* MSGBUF ID */ 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) 62#endif 63 64/* FlexCan module */ 65typedef struct can_ctrl { 66 u32 mcr; /* 0x00 Module Configuration */ 67 u32 ctrl; /* 0x04 Control */ 68 u32 timer; /* 0x08 Free Running Timer */ 69 u32 res1; /* 0x0C */ 70 u32 rxgmsk; /* 0x10 Rx Global Mask */ 71 u32 rx14msk; /* 0x14 RxBuffer 14 Mask */ 72 u32 rx15msk; /* 0x18 RxBuffer 15 Mask */ 73#ifdef CONFIG_M5282 74 u32 res2; /* 0x1C */ 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 */ 80#else 81 u16 res2; /* 0x1C */ 82 u16 errcnt; /* 0x1E Error Counter */ 83 u16 res3; /* 0x20 */ 84 u16 errstat; /* 0x22 Error and status */ 85 u32 res4; /* 0x24 */ 86 u32 imsk; /* 0x28 Interrupt Mask */ 87 u32 res5; /* 0x2C */ 88 u16 iflag; /* 0x30 Interrupt Flag */ 89#endif 90 u32 res6[19]; /* 0x34 - 0x7F */ 91 void *msgbuf; /* 0x80 Message Buffer 0-15 */ 92} can_t; 93 94/* MCR */ 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) 109 110/* CTRL */ 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) 136 137/* TIMER */ 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) 141 142/* RXGMASK */ 143#ifdef CONFIG_M5282 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) 148#else 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) 153#endif 154 155/* ERRCNT */ 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) 160 161/* ERRSTAT */ 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) 176#ifdef CONFIG_M5282 177#define CAN_ERRSTAT_BOFFINT (0x0004) 178#define CAN_ERRSTAT_ERRINT (0x0002) 179#else 180#define CAN_ERRSTAT_ERRINT (0x0004) 181#define CAN_ERRSTAT_BOFFINT (0x0002) 182#define CAN_ERRSTAT_WAKEINT (0x0001) 183#endif 184 185/* IMASK */ 186#ifdef CONFIG_M5253 187#define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFFFFFF)) 188#define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x) 189#else 190#define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFF)) 191#define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x) 192#endif 193 194/* IFLAG */ 195#ifdef CONFIG_M5253 196#define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFFFFFF)) 197#define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x) 198#else 199#define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFF)) 200#define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x) 201#endif 202 203#endif /* __FLEXCAN_H__ */ 204