| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Flex CAN Memory Map |
| * |
| * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. |
| * TsiChung Liew (Tsi-Chung.Liew@freescale.com) |
| */ |
| |
| #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__ */ |
