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Diffstat (limited to 'include/asm-m68k/coldfire/flexcan.h')
| -rw-r--r-- | include/asm-m68k/coldfire/flexcan.h | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/include/asm-m68k/coldfire/flexcan.h b/include/asm-m68k/coldfire/flexcan.h new file mode 100644 index 0000000..cafd44f --- /dev/null +++ b/include/asm-m68k/coldfire/flexcan.h @@ -0,0 +1,219 @@ +/* + * Flex CAN Memory Map + * + * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef __FLEXCAN_H__ +#define __FLEXCAN_H__ + +/* FlexCan Message Buffer */ +typedef struct can_msgbuf_ctrl { +#ifdef CONFIG_M5282 + u8 tmstamp; /* 0x00 Timestamp */ + u8 ctrl; /* 0x01 Control */ + u16 idh; /* 0x02 ID High */ + u16 idl; /* 0x04 ID High */ + u8 data[8]; /* 0x06 8 Byte Data Field */ + u16 res; /* 0x0E */ +#else + u16 ctrl; /* 0x00 Control/Status */ + u16 tmstamp; /* 0x02 Timestamp */ + u32 id; /* 0x04 Identifier */ + u8 data[8]; /* 0x08 8 Byte Data Field */ +#endif +} can_msg_t; + +#ifdef CONFIG_M5282 +/* MSGBUF CTRL */ +#define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x0F) << 4) +#define CAN_MSGBUF_CTRL_CODE_MASK (0x0F) +#define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x0F) +#define CAN_MSGBUF_CTRL_LEN_MASK (0xF0) + +/* MSGBUF ID */ +#define CAN_MSGBUF_IDH_STD(x) (((x) & 0x07FF) << 5) +#define CAN_MSGBUF_IDH_STD_MASK (0xE003FFFF) +#define CAN_MSGBUF_IDH_SRR (0x0010) +#define CAN_MSGBUF_IDH_IDE (0x0080) +#define CAN_MSGBUF_IDH_EXTH(x) ((x) & 0x07) +#define CAN_MSGBUF_IDH_EXTH_MASK (0xFFF8) +#define CAN_MSGBUF_IDL_EXTL(x) (((x) & 0x7FFF) << 1) +#define CAN_MSGBUF_IDL_EXTL_MASK (0xFFFE) +#define CAN_MSGBUF_IDL_RTR (0x0001) +#else +/* MSGBUF CTRL */ +#define CAN_MSGBUF_CTRL_CODE(x) (((x) & 0x000F) << 8) +#define CAN_MSGBUF_CTRL_CODE_MASK (0xF0FF) +#define CAN_MSGBUF_CTRL_SRR (0x0040) +#define CAN_MSGBUF_CTRL_IDE (0x0020) +#define CAN_MSGBUF_CTRL_RTR (0x0010) +#define CAN_MSGBUF_CTRL_LEN(x) ((x) & 0x000F) +#define CAN_MSGBUF_CTRL_LEN_MASK (0xFFF0) + +/* MSGBUF ID */ +#define CAN_MSGBUF_ID_STD(x) (((x) & 0x000007FF) << 18) +#define CAN_MSGBUF_ID_STD_MASK (0xE003FFFF) +#define CAN_MSGBUF_ID_EXT(x) ((x) & 0x0003FFFF) +#define CAN_MSGBUF_ID_EXT_MASK (0xFFFC0000) +#endif + +/* FlexCan module */ +typedef struct can_ctrl { + u32 mcr; /* 0x00 Module Configuration */ + u32 ctrl; /* 0x04 Control */ + u32 timer; /* 0x08 Free Running Timer */ + u32 res1; /* 0x0C */ + u32 rxgmsk; /* 0x10 Rx Global Mask */ + u32 rx14msk; /* 0x14 RxBuffer 14 Mask */ + u32 rx15msk; /* 0x18 RxBuffer 15 Mask */ +#ifdef CONFIG_M5282 + u32 res2; /* 0x1C */ + u16 errstat; /* 0x20 Error and status */ + u16 imsk; /* 0x22 Interrupt Mask */ + u16 iflag; /* 0x24 Interrupt Flag */ + u16 errcnt; /* 0x26 Error Counter */ + u32 res3[3]; /* 0x28 - 0x33 */ +#else + u16 res2; /* 0x1C */ + u16 errcnt; /* 0x1E Error Counter */ + u16 res3; /* 0x20 */ + u16 errstat; /* 0x22 Error and status */ + u32 res4; /* 0x24 */ + u32 imsk; /* 0x28 Interrupt Mask */ + u32 res5; /* 0x2C */ + u16 iflag; /* 0x30 Interrupt Flag */ +#endif + u32 res6[19]; /* 0x34 - 0x7F */ + void *msgbuf; /* 0x80 Message Buffer 0-15 */ +} can_t; + +/* MCR */ +#define CAN_MCR_MDIS (0x80000000) +#define CAN_MCR_FRZ (0x40000000) +#define CAN_MCR_HALT (0x10000000) +#define CAN_MCR_NORDY (0x08000000) +#define CAN_MCF_WAKEMSK (0x04000000) /* 5282 */ +#define CAN_MCR_SOFTRST (0x02000000) +#define CAN_MCR_FRZACK (0x01000000) +#define CAN_MCR_SUPV (0x00800000) +#define CAN_MCR_SELFWAKE (0x00400000) /* 5282 */ +#define CAN_MCR_APS (0x00200000) /* 5282 */ +#define CAN_MCR_LPMACK (0x00100000) +#define CAN_MCF_BCC (0x00010000) +#define CAN_MCR_MAXMB(x) ((x) & 0x0F) +#define CAN_MCR_MAXMB_MASK (0xFFFFFFF0) + +/* CTRL */ +#define CAN_CTRL_PRESDIV(x) (((x) & 0xFF) << 24) +#define CAN_CTRL_PRESDIV_MASK (0x00FFFFFF) +#define CAN_CTRL_RJW(x) (((x) & 0x03) << 22) +#define CAN_CTRL_RJW_MASK (0xFF3FFFFF) +#define CAN_CTRL_PSEG1(x) (((x) & 0x07) << 19) +#define CAN_CTRL_PSEG1_MASK (0xFFC7FFFF) +#define CAN_CTRL_PSEG2(x) (((x) & 0x07) << 16) +#define CAN_CTRL_PSEG2_MASK (0xFFF8FFFF) +#define CAN_CTRL_BOFFMSK (0x00008000) +#define CAN_CTRL_ERRMSK (0x00004000) +#define CAN_CTRL_CLKSRC (0x00002000) +#define CAN_CTRL_LPB (0x00001000) +#define CAN_CTRL_RXMODE (0x00000400) /* 5282 */ +#define CAN_CTRL_TXMODE(x) (((x) & 0x03) << 8) /* 5282 */ +#define CAN_CTRL_TXMODE_MASK (0xFFFFFCFF) /* 5282 */ +#define CAN_CTRL_TXMODE_CAN0 (0x00000000) /* 5282 */ +#define CAN_CTRL_TXMODE_CAN1 (0x00000100) /* 5282 */ +#define CAN_CTRL_TXMODE_OPEN (0x00000200) /* 5282 */ +#define CAN_CTRL_SMP (0x00000080) +#define CAN_CTRL_BOFFREC (0x00000040) +#define CAN_CTRL_TSYNC (0x00000020) +#define CAN_CTRL_LBUF (0x00000010) +#define CAN_CTRL_LOM (0x00000008) +#define CAN_CTRL_PROPSEG(x) ((x) & 0x07) +#define CAN_CTRL_PROPSEG_MASK (0xFFFFFFF8) + +/* TIMER */ +/* Note: PRESDIV, RJW, PSG1, and PSG2 are part of timer in 5282 */ +#define CAN_TIMER(x) ((x) & 0xFFFF) +#define CAN_TIMER_MASK (0xFFFF0000) + +/* RXGMASK */ +#ifdef CONFIG_M5282 +#define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 21) +#define CAN_RXGMSK_MI_STD_MASK (0x001FFFFF) +#define CAN_RXGMSK_MI_EXT(x) (((x) & 0x0003FFFF) << 1) +#define CAN_RXGMSK_MI_EXT_MASK (0xFFF80001) +#else +#define CAN_RXGMSK_MI_STD(x) (((x) & 0x000007FF) << 18) +#define CAN_RXGMSK_MI_STD_MASK (0xE003FFFF) +#define CAN_RXGMSK_MI_EXT(x) ((x) & 0x0003FFFF) +#define CAN_RXGMSK_MI_EXT_MASK (0xFFFC0000) +#endif + +/* ERRCNT */ +#define CAN_ERRCNT_RXECTR(x) (((x) & 0xFF) << 8) +#define CAN_ERRCNT_RXECTR_MASK (0x00FF) +#define CAN_ERRCNT_TXECTR(x) ((x) & 0xFF) +#define CAN_ERRCNT_TXECTR_MASK (0xFF00) + +/* ERRSTAT */ +#define CAN_ERRSTAT_BITERR1 (0x8000) +#define CAN_ERRSTAT_BITERR0 (0x4000) +#define CAN_ERRSTAT_ACKERR (0x2000) +#define CAN_ERRSTAT_CRCERR (0x1000) +#define CAN_ERRSTAT_FRMERR (0x0800) +#define CAN_ERRSTAT_STFERR (0x0400) +#define CAN_ERRSTAT_TXWRN (0x0200) +#define CAN_ERRSTAT_RXWRN (0x0100) +#define CAN_ERRSTAT_IDLE (0x0080) +#define CAN_ERRSTAT_TXRX (0x0040) +#define CAN_ERRSTAT_FLT_MASK (0xFFCF) +#define CAN_ERRSTAT_FLT_BUSOFF (0x0020) +#define CAN_ERRSTAT_FLT_PASSIVE (0x0010) +#define CAN_ERRSTAT_FLT_ACTIVE (0x0000) +#ifdef CONFIG_M5282 +#define CAN_ERRSTAT_BOFFINT (0x0004) +#define CAN_ERRSTAT_ERRINT (0x0002) +#else +#define CAN_ERRSTAT_ERRINT (0x0004) +#define CAN_ERRSTAT_BOFFINT (0x0002) +#define CAN_ERRSTAT_WAKEINT (0x0001) +#endif + +/* IMASK */ +#ifdef CONFIG_M5253 +#define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFFFFFF)) +#define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x) +#else +#define CAN_IMASK_BUFnM(x) (1 << (x & 0xFFFF)) +#define CAN_IMASK_BUFnM_MASKBIT(x) ~CAN_IMASK_BUFnM(x) +#endif + +/* IFLAG */ +#ifdef CONFIG_M5253 +#define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFFFFFF)) +#define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x) +#else +#define CAN_IFLAG_BUFnM(x) (1 << (x & 0xFFFF)) +#define CAN_IFLAG_BUFnM_MASKBIT(x) ~CAN_IFLAG_BUFnM(x) +#endif + +#endif /* __FLEXCAN_H__ */ |