| /* | |
| * 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__ */ |