/* * bfin_can.h - interface to Blackfin CANs * * Copyright 2004-2009 Analog Devices Inc. * * Licensed under the GPL-2 or later. */ #ifndef __ASM_BFIN_CAN_H__ #define __ASM_BFIN_CAN_H__ /* * transmit and receive channels */ #define TRANSMIT_CHL 24 #define RECEIVE_STD_CHL 0 #define RECEIVE_EXT_CHL 4 #define RECEIVE_RTR_CHL 8 #define RECEIVE_EXT_RTR_CHL 12 #define MAX_CHL_NUMBER 32 /* * All Blackfin system MMRs are padded to 32bits even if the register * itself is only 16bits. So use a helper macro to streamline this. */ #define __BFP(m) u16 m; u16 __pad_##m /* * bfin can registers layout */ struct bfin_can_mask_regs { __BFP(aml); __BFP(amh); }; struct bfin_can_channel_regs { /* data[0,2,4,6] -> data{0,1,2,3} while data[1,3,5,7] is padding */ u16 data[8]; __BFP(dlc); __BFP(tsv); __BFP(id0); __BFP(id1); }; struct bfin_can_regs { /* * global control and status registers */ __BFP(mc1); /* offset 0x00 */ __BFP(md1); /* offset 0x04 */ __BFP(trs1); /* offset 0x08 */ __BFP(trr1); /* offset 0x0c */ __BFP(ta1); /* offset 0x10 */ __BFP(aa1); /* offset 0x14 */ __BFP(rmp1); /* offset 0x18 */ __BFP(rml1); /* offset 0x1c */ __BFP(mbtif1); /* offset 0x20 */ __BFP(mbrif1); /* offset 0x24 */ __BFP(mbim1); /* offset 0x28 */ __BFP(rfh1); /* offset 0x2c */ __BFP(opss1); /* offset 0x30 */ u32 __pad1[3]; __BFP(mc2); /* offset 0x40 */ __BFP(md2); /* offset 0x44 */ __BFP(trs2); /* offset 0x48 */ __BFP(trr2); /* offset 0x4c */ __BFP(ta2); /* offset 0x50 */ __BFP(aa2); /* offset 0x54 */ __BFP(rmp2); /* offset 0x58 */ __BFP(rml2); /* offset 0x5c */ __BFP(mbtif2); /* offset 0x60 */ __BFP(mbrif2); /* offset 0x64 */ __BFP(mbim2); /* offset 0x68 */ __BFP(rfh2); /* offset 0x6c */ __BFP(opss2); /* offset 0x70 */ u32 __pad2[3]; __BFP(clock); /* offset 0x80 */ __BFP(timing); /* offset 0x84 */ __BFP(debug); /* offset 0x88 */ __BFP(status); /* offset 0x8c */ __BFP(cec); /* offset 0x90 */ __BFP(gis); /* offset 0x94 */ __BFP(gim); /* offset 0x98 */ __BFP(gif); /* offset 0x9c */ __BFP(control); /* offset 0xa0 */ __BFP(intr); /* offset 0xa4 */ __BFP(version); /* offset 0xa8 */ __BFP(mbtd); /* offset 0xac */ __BFP(ewr); /* offset 0xb0 */ __BFP(esr); /* offset 0xb4 */ u32 __pad3[2]; __BFP(ucreg); /* offset 0xc0 */ __BFP(uccnt); /* offset 0xc4 */ __BFP(ucrc); /* offset 0xc8 */ __BFP(uccnf); /* offset 0xcc */ u32 __pad4[1]; __BFP(version2); /* offset 0xd4 */ u32 __pad5[10]; /* * channel(mailbox) mask and message registers */ struct bfin_can_mask_regs msk[MAX_CHL_NUMBER]; /* offset 0x100 */ struct bfin_can_channel_regs chl[MAX_CHL_NUMBER]; /* offset 0x200 */ }; #undef __BFP /* CAN_CONTROL Masks */ #define SRS 0x0001 /* Software Reset */ #define DNM 0x0002 /* Device Net Mode */ #define ABO 0x0004 /* Auto-Bus On Enable */ #define TXPRIO 0x0008 /* TX Priority (Priority/Mailbox*) */ #define WBA 0x0010 /* Wake-Up On CAN Bus Activity Enable */ #define SMR 0x0020 /* Sleep Mode Request */ #define CSR 0x0040 /* CAN Suspend Mode Request */ #define CCR 0x0080 /* CAN Configuration Mode Request */ /* CAN_STATUS Masks */ #define WT 0x0001 /* TX Warning Flag */ #define WR 0x0002 /* RX Warning Flag */ #define EP 0x0004 /* Error Passive Mode */ #define EBO 0x0008 /* Error Bus Off Mode */ #define SMA 0x0020 /* Sleep Mode Acknowledge */ #define CSA 0x0040 /* Suspend Mode Acknowledge */ #define CCA 0x0080 /* Configuration Mode Acknowledge */ #define MBPTR 0x1F00 /* Mailbox Pointer */ #define TRM 0x4000 /* Transmit Mode */ #define REC 0x8000 /* Receive Mode */ /* CAN_CLOCK Masks */ #define BRP 0x03FF /* Bit-Rate Pre-Scaler */ /* CAN_TIMING Masks */ #define TSEG1 0x000F /* Time Segment 1 */ #define TSEG2 0x0070 /* Time Segment 2 */ #define SAM 0x0080 /* Sampling */ #define SJW 0x0300 /* Synchronization Jump Width */ /* CAN_DEBUG Masks */ #define DEC 0x0001 /* Disable CAN Error Counters */ #define DRI 0x0002 /* Disable CAN RX Input */ #define DTO 0x0004 /* Disable CAN TX Output */ #define DIL 0x0008 /* Disable CAN Internal Loop */ #define MAA 0x0010 /* Mode Auto-Acknowledge Enable */ #define MRB 0x0020 /* Mode Read Back Enable */ #define CDE 0x8000 /* CAN Debug Enable */ /* CAN_CEC Masks */ #define RXECNT 0x00FF /* Receive Error Counter */ #define TXECNT 0xFF00 /* Transmit Error Counter */ /* CAN_INTR Masks */ #define MBRIRQ 0x0001 /* Mailbox Receive Interrupt */ #define MBTIRQ 0x0002 /* Mailbox Transmit Interrupt */ #define GIRQ 0x0004 /* Global Interrupt */ #define SMACK 0x0008 /* Sleep Mode Acknowledge */ #define CANTX 0x0040 /* CAN TX Bus Value */ #define CANRX 0x0080 /* CAN RX Bus Value */ /* CAN_MBxx_ID1 and CAN_MBxx_ID0 Masks */ #define DFC 0xFFFF /* Data Filtering Code (If Enabled) (ID0) */ #define EXTID_LO 0xFFFF /* Lower 16 Bits of Extended Identifier (ID0) */ #define EXTID_HI 0x0003 /* Upper 2 Bits of Extended Identifier (ID1) */ #define BASEID 0x1FFC /* Base Identifier */ #define IDE 0x2000 /* Identifier Extension */ #define RTR 0x4000 /* Remote Frame Transmission Request */ #define AME 0x8000 /* Acceptance Mask Enable */ /* CAN_MBxx_TIMESTAMP Masks */ #define TSV 0xFFFF /* Timestamp */ /* CAN_MBxx_LENGTH Masks */ #define DLC 0x000F /* Data Length Code */ /* CAN_AMxxH and CAN_AMxxL Masks */ #define DFM 0xFFFF /* Data Field Mask (If Enabled) (CAN_AMxxL) */ #define EXTID_LO 0xFFFF /* Lower 16 Bits of Extended Identifier (CAN_AMxxL) */ #define EXTID_HI 0x0003 /* Upper 2 Bits of Extended Identifier (CAN_AMxxH) */ #define BASEID 0x1FFC /* Base Identifier */ #define AMIDE 0x2000 /* Acceptance Mask ID Extension Enable */ #define FMD 0x4000 /* Full Mask Data Field Enable */ #define FDF 0x8000 /* Filter On Data Field Enable */ /* CAN_MC1 Masks */ #define MC0 0x0001 /* Enable Mailbox 0 */ #define MC1 0x0002 /* Enable Mailbox 1 */ #define MC2 0x0004 /* Enable Mailbox 2 */ #define MC3 0x0008 /* Enable Mailbox 3 */ #define MC4 0x0010 /* Enable Mailbox 4 */ #define MC5 0x0020 /* Enable Mailbox 5 */ #define MC6 0x0040 /* Enable Mailbox 6 */ #define MC7 0x0080 /* Enable Mailbox 7 */ #define MC8 0x0100 /* Enable Mailbox 8 */ #define MC9 0x0200 /* Enable Mailbox 9 */ #define MC10 0x0400 /* Enable Mailbox 10 */ #define MC11 0x0800 /* Enable Mailbox 11 */ #define MC12 0x1000 /* Enable Mailbox 12 */ #define MC13 0x2000 /* Enable Mailbox 13 */ #define MC14 0x4000 /* Enable Mailbox 14 */ #define MC15 0x8000 /* Enable Mailbox 15 */ /* CAN_MC2 Masks */ #define MC16 0x0001 /* Enable Mailbox 16 */ #define MC17 0x0002 /* Enable Mailbox 17 */ #define MC18 0x0004 /* Enable Mailbox 18 */ #define MC19 0x0008 /* Enable Mailbox 19 */ #define MC20 0x0010 /* Enable Mailbox 20 */ #define MC21 0x0020 /* Enable Mailbox 21 */ #define MC22 0x0040 /* Enable Mailbox 22 */ #define MC23 0x0080 /* Enable Mailbox 23 */ #define MC24 0x0100 /* Enable Mailbox 24 */ #define MC25 0x0200 /* Enable Mailbox 25 */ #define MC26 0x0400 /* Enable Mailbox 26 */ #define MC27 0x0800 /* Enable Mailbox 27 */ #define MC28 0x1000 /* Enable Mailbox 28 */ #define MC29 0x2000 /* Enable Mailbox 29 */ #define MC30 0x4000 /* Enable Mailbox 30 */ #define MC31 0x8000 /* Enable Mailbox 31 */ /* CAN_MD1 Masks */ #define MD0 0x0001 /* Enable Mailbox 0 For Receive */ #define MD1 0x0002 /* Enable Mailbox 1 For Receive */ #define MD2 0x0004 /* Enable Mailbox 2 For Receive */ #define MD3 0x0008 /* Enable Mailbox 3 For Receive */ #define MD4 0x0010 /* Enable Mailbox 4 For Receive */ #define MD5 0x0020 /* Enable Mailbox 5 For Receive */ #define MD6 0x0040 /* Enable Mailbox 6 For Receive */ #define MD7 0x0080 /* Enable Mailbox 7 For Receive */ #define MD8 0x0100 /* Enable Mailbox 8 For Receive */ #define MD9 0x0200 /* Enable Mailbox 9 For Receive */ #define MD10 0x0400 /* Enable Mailbox 10 For Receive */ #define MD11 0x0800 /* Enable Mailbox 11 For Receive */ #define MD12 0x1000 /* Enable Mailbox 12 For Receive */ #define MD13 0x2000 /* Enable Mailbox 13 For Receive */ #define MD14 0x4000 /* Enable Mailbox 14 For Receive */ #define MD15 0x8000 /* Enable Mailbox 15 For Receive */ /* CAN_MD2 Masks */ #define MD16 0x0001 /* Enable Mailbox 16 For Receive */ #define MD17 0x0002 /* Enable Mailbox 17 For Receive */ #define MD18 0x0004 /* Enable Mailbox 18 For Receive */ #define MD19 0x0008 /* Enable Mailbox 19 For Receive */ #define MD20 0x0010 /* Enable Mailbox 20 For Receive */ #define MD21 0x0020 /* Enable Mailbox 21 For Receive */ #define MD22 0x0040 /* Enable Mailbox 22 For Receive */ #define MD23 0x0080 /* Enable Mailbox 23 For Receive */ #define MD24 0x0100 /* Enable Mailbox 24 For Receive */ #define MD25 0x0200 /* Enable Mailbox 25 For Receive */ #define MD26 0x0400 /* Enable Mailbox 26 For Receive */ #define MD27 0x0800 /* Enable Mailbox 27 For Receive */ #define MD28 0x1000 /* Enable Mailbox 28 For Receive */ #define MD29 0x2000 /* Enable Mailbox 29 For Receive */ #define MD30 0x4000 /* Enable Mailbox 30 For Receive */ #define MD31 0x8000 /* Enable Mailbox 31 For Receive */ /* CAN_RMP1 Masks */ #define RMP0 0x0001 /* RX Message Pending In Mailbox 0 */ #define RMP1 0x0002 /* RX Message Pending In Mailbox 1 */ #define RMP2 0x0004 /* RX Message Pending In Mailbox 2 */ #define RMP3 0x0008 /* RX Message Pending In Mailbox 3 */ #define RMP4 0x0010 /* RX Message Pending In Mailbox 4 */ #define RMP5 0x0020 /* RX Message Pending In Mailbox 5 */ #define RMP6 0x0040 /* RX Message Pending In Mailbox 6 */ #define RMP7 0x0080 /* RX Message Pending In Mailbox 7 */ #define RMP8 0x0100 /* RX Message Pending In Mailbox 8 */ #define RMP9 0x0200 /* RX Message Pending In Mailbox 9 */ #define RMP10 0x0400 /* RX Message Pending In Mailbox 10 */ #define RMP11 0x0800 /* RX Message Pending In Mailbox 11 */ #define RMP12 0x1000 /* RX Message Pending In Mailbox 12 */ #define RMP13 0x2000 /* RX Message Pending In Mailbox 13 */ #define RMP14 0x4000 /* RX Message Pending In Mailbox 14 */ #define RMP15 0x8000 /* RX Message Pending In Mailbox 15 */ /* CAN_RMP2 Masks */ #define RMP16 0x0001 /* RX Message Pending In Mailbox 16 */ #define RMP17 0x0002 /* RX Message Pending In Mailbox 17 */ #define RMP18 0x0004 /* RX Message Pending In Mailbox 18 */ #define RMP19 0x0008 /* RX Message Pending In Mailbox 19 */ #define RMP20 0x0010 /* RX Message Pending In Mailbox 20 */ #define RMP21 0x0020 /* RX Message Pending In Mailbox 21 */ #define RMP22 0x0040 /* RX Message Pending In Mailbox 22 */ #define RMP23 0x0080 /* RX Message Pending In Mailbox 23 */ #define RMP24 0x0100 /* RX Message Pending In Mailbox 24 */ #define RMP25 0x0200 /* RX Message Pending In Mailbox 25 */ #define RMP26 0x0400 /* RX Message Pending In Mailbox 26 */ #define RMP27 0x0800 /* RX Message Pending In Mailbox 27 */ #define RMP28 0x1000 /* RX Message Pending In Mailbox 28 */ #define RMP29 0x2000 /* RX Message Pending In Mailbox 29 */ #define RMP30 0x4000 /* RX Message Pending In Mailbox 30 */ #define RMP31 0x8000 /* RX Message Pending In Mailbox 31 */ /* CAN_RML1 Masks */ #define RML0 0x0001 /* RX Message Lost In Mailbox 0 */ #define RML1 0x0002 /* RX Message Lost In Mailbox 1 */ #define RML2 0x0004 /* RX Message Lost In Mailbox 2 */ #define RML3 0x0008 /* RX Message Lost In Mailbox 3 */ #define RML4 0x0010 /* RX Message Lost In Mailbox 4 */ #define RML5 0x0020 /* RX Message Lost In Mailbox 5 */ #define RML6 0x0040 /* RX Message Lost In Mailbox 6 */ #define RML7 0x0080 /* RX Message Lost In Mailbox 7 */ #define RML8 0x0100 /* RX Message Lost In Mailbox 8 */ #define RML9 0x0200 /* RX Message Lost In Mailbox 9 */ #define RML10 0x0400 /* RX Message Lost In Mailbox 10 */ #define RML11 0x0800 /* RX Message Lost In Mailbox 11 */ #define RML12 0x1000 /* RX Message Lost In Mailbox 12 */ #define RML13 0x2000 /* RX Message Lost In Mailbox 13 */ #define RML14 0x4000 /* RX Message Lost In Mailbox 14 */ #define RML15 0x8000 /* RX Message Lost In Mailbox 15 */ /* CAN_RML2 Masks */ #define RML16 0x0001 /* RX Message Lost In Mailbox 16 */ #define RML17 0x0002 /* RX Message Lost In Mailbox 17 */ #define RML18 0x0004 /* RX Message Lost In Mailbox 18 */ #define RML19 0x0008 /* RX Message Lost In Mailbox 19 */ #define RML20 0x0010 /* RX Message Lost In Mailbox 20 */ #define RML21 0x0020 /* RX Message Lost In Mailbox 21 */ #define RML22 0x0040 /* RX Message Lost In Mailbox 22 */ #define RML23 0x0080 /* RX Message Lost In Mailbox 23 */ #define RML24 0x0100 /* RX Message Lost In Mailbox 24 */ #define RML25 0x0200 /* RX Message Lost In Mailbox 25 */ #define RML26 0x0400 /* RX Message Lost In Mailbox 26 */ #define RML27 0x0800 /* RX Message Lost In Mailbox 27 */ #define RML28 0x1000 /* RX Message Lost In Mailbox 28 */ #define RML29 0x2000 /* RX Message Lost In Mailbox 29 */ #define RML30 0x4000 /* RX Message Lost In Mailbox 30 */ #define RML31 0x8000 /* RX Message Lost In Mailbox 31 */ /* CAN_OPSS1 Masks */ #define OPSS0 0x0001 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 0 */ #define OPSS1 0x0002 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 1 */ #define OPSS2 0x0004 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 2 */ #define OPSS3 0x0008 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 3 */ #define OPSS4 0x0010 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 4 */ #define OPSS5 0x0020 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 5 */ #define OPSS6 0x0040 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 6 */ #define OPSS7 0x0080 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 7 */ #define OPSS8 0x0100 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 8 */ #define OPSS9 0x0200 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 9 */ #define OPSS10 0x0400 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 10 */ #define OPSS11 0x0800 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 11 */ #define OPSS12 0x1000 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 12 */ #define OPSS13 0x2000 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 13 */ #define OPSS14 0x4000 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 14 */ #define OPSS15 0x8000 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 15 */ /* CAN_OPSS2 Masks */ #define OPSS16 0x0001 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 16 */ #define OPSS17 0x0002 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 17 */ #define OPSS18 0x0004 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 18 */ #define OPSS19 0x0008 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 19 */ #define OPSS20 0x0010 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 20 */ #define OPSS21 0x0020 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 21 */ #define OPSS22 0x0040 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 22 */ #define OPSS23 0x0080 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 23 */ #define OPSS24 0x0100 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 24 */ #define OPSS25 0x0200 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 25 */ #define OPSS26 0x0400 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 26 */ #define OPSS27 0x0800 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 27 */ #define OPSS28 0x1000 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 28 */ #define OPSS29 0x2000 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 29 */ #define OPSS30 0x4000 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 30 */ #define OPSS31 0x8000 /* Enable RX Overwrite Protection or TX Single-Shot For Mailbox 31 */ /* CAN_TRR1 Masks */ #define TRR0 0x0001 /* Deny But Don't Lock Access To Mailbox 0 */ #define TRR1 0x0002 /* Deny But Don't Lock Access To Mailbox 1 */ #define TRR2 0x0004 /* Deny But Don't Lock Access To Mailbox 2 */ #define TRR3 0x0008 /* Deny But Don't Lock Access To Mailbox 3 */ #define TRR4 0x0010 /* Deny But Don't Lock Access To Mailbox 4 */ #define TRR5 0x0020 /* Deny But Don't Lock Access To Mailbox 5 */ #define TRR6 0x0040 /* Deny But Don't Lock Access To Mailbox 6 */ #define TRR7 0x0080 /* Deny But Don't Lock Access To Mailbox 7 */ #define TRR8 0x0100 /* Deny But Don't Lock Access To Mailbox 8 */ #define TRR9 0x0200 /* Deny But Don't Lock Access To Mailbox 9 */ #define TRR10 0x0400 /* Deny But Don't Lock Access To Mailbox 10 */ #define TRR11 0x0800 /* Deny But Don't Lock Access To Mailbox 11 */ #define TRR12 0x1000 /* Deny But Don't Lock Access To Mailbox 12 */ #define TRR13 0x2000 /* Deny But Don't Lock Access To Mailbox 13 */ #define TRR14 0x4000 /* Deny But Don't Lock Access To Mailbox 14 */ #define TRR15 0x8000 /* Deny But Don't Lock Access To Mailbox 15 */ /* CAN_TRR2 Masks */ #define TRR16 0x0001 /* Deny But Don't Lock Access To Mailbox 16 */ #define TRR17 0x0002 /* Deny But Don't Lock Access To Mailbox 17 */ #define TRR18 0x0004 /* Deny But Don't Lock Access To Mailbox 18 */ #define TRR19 0x0008 /* Deny But Don't Lock Access To Mailbox 19 */ #define TRR20 0x0010 /* Deny But Don't Lock Access To Mailbox 20 */ #define TRR21 0x0020 /* Deny But Don't Lock Access To Mailbox 21 */ #define TRR22 0x0040 /* Deny But Don't Lock Access To Mailbox 22 */ #define TRR23 0x0080 /* Deny But Don't Lock Access To Mailbox 23 */ #define TRR24 0x0100 /* Deny But Don't Lock Access To Mailbox 24 */ #define TRR25 0x0200 /* Deny But Don't Lock Access To Mailbox 25 */ #define TRR26 0x0400 /* Deny But Don't Lock Access To Mailbox 26 */ #define TRR27 0x0800 /* Deny But Don't Lock Access To Mailbox 27 */ #define TRR28 0x1000 /* Deny But Don't Lock Access To Mailbox 28 */ #define TRR29 0x2000 /* Deny But Don't Lock Access To Mailbox 29 */ #define TRR30 0x4000 /* Deny But Don't Lock Access To Mailbox 30 */ #define TRR31 0x8000 /* Deny But Don't Lock Access To Mailbox 31 */ /* CAN_TRS1 Masks */ #define TRS0 0x0001 /* Remote Frame Request For Mailbox 0 */ #define TRS1 0x0002 /* Remote Frame Request For Mailbox 1 */ #define TRS2 0x0004 /* Remote Frame Request For Mailbox 2 */ #define TRS3 0x0008 /* Remote Frame Request For Mailbox 3 */ #define TRS4 0x0010 /* Remote Frame Request For Mailbox 4 */