include/asm-m68k/coldfire/flexcan.h

   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  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #ifndef __FLEXCAN_H__
  27 #define __FLEXCAN_H__
  28
  29 /* FlexCan Message Buffer */
  30 typedef struct can_msgbuf_ctrl {
  31 #ifdef CONFIG_M5282
  32         u8 tmstamp;             /* 0x00 Timestamp */
  33         u8 ctrl;                /* 0x01 Control */
  34         u16 idh;                /* 0x02 ID High */
  35         u16 idl;                /* 0x04 ID High */
  36         u8 data[8];             /* 0x06 8 Byte Data Field */
  37         u16 res;                /* 0x0E */
  38 #else
  39         u16 ctrl;               /* 0x00 Control/Status */
  40         u16 tmstamp;            /* 0x02 Timestamp */
  41         u32 id;                 /* 0x04 Identifier */
  42         u8 data[8];             /* 0x08 8 Byte Data Field */
  43 #endif
  44 } can_msg_t;
  45
  46 #ifdef CONFIG_M5282
  47 /* MSGBUF CTRL */
  48 #define CAN_MSGBUF_CTRL_CODE(x)         (((x) & 0x0F) << 4)
  49 #define CAN_MSGBUF_CTRL_CODE_MASK       (0x0F)
  50 #define CAN_MSGBUF_CTRL_LEN(x)          ((x) & 0x0F)
  51 #define CAN_MSGBUF_CTRL_LEN_MASK        (0xF0)
  52
  53 /* MSGBUF ID */
  54 #define CAN_MSGBUF_IDH_STD(x)           (((x) & 0x07FF) << 5)
  55 #define CAN_MSGBUF_IDH_STD_MASK         (0xE003FFFF)
  56 #define CAN_MSGBUF_IDH_SRR              (0x0010)
  57 #define CAN_MSGBUF_IDH_IDE              (0x0080)
  58 #define CAN_MSGBUF_IDH_EXTH(x)          ((x) & 0x07)
  59 #define CAN_MSGBUF_IDH_EXTH_MASK        (0xFFF8)
  60 #define CAN_MSGBUF_IDL_EXTL(x)          (((x) & 0x7FFF) << 1)
  61 #define CAN_MSGBUF_IDL_EXTL_MASK                (0xFFFE)
  62 #define CAN_MSGBUF_IDL_RTR              (0x0001)
  63 #else
  64 /* MSGBUF CTRL */
  65 #define CAN_MSGBUF_CTRL_CODE(x)         (((x) & 0x000F) << 8)
  66 #define CAN_MSGBUF_CTRL_CODE_MASK       (0xF0FF)
  67 #define CAN_MSGBUF_CTRL_SRR             (0x0040)
  68 #define CAN_MSGBUF_CTRL_IDE             (0x0020)
  69 #define CAN_MSGBUF_CTRL_RTR             (0x0010)
  70 #define CAN_MSGBUF_CTRL_LEN(x)          ((x) & 0x000F)
  71 #define CAN_MSGBUF_CTRL_LEN_MASK        (0xFFF0)
  72
  73 /* MSGBUF ID */
  74 #define CAN_MSGBUF_ID_STD(x)            (((x) & 0x000007FF) << 18)
  75 #define CAN_MSGBUF_ID_STD_MASK          (0xE003FFFF)
  76 #define CAN_MSGBUF_ID_EXT(x)            ((x) & 0x0003FFFF)
  77 #define CAN_MSGBUF_ID_EXT_MASK          (0xFFFC0000)
  78 #endif
  79
  80 /* FlexCan module */
  81 typedef struct can_ctrl {
  82         u32 mcr;                /* 0x00 Module Configuration */
  83         u32 ctrl;               /* 0x04 Control */
  84         u32 timer;              /* 0x08 Free Running Timer */
  85         u32 res1;               /* 0x0C */
  86         u32 rxgmsk;             /* 0x10 Rx Global Mask */
  87         u32 rx14msk;            /* 0x14 RxBuffer 14 Mask */
  88         u32 rx15msk;            /* 0x18 RxBuffer 15 Mask */
  89 #ifdef CONFIG_M5282
  90         u32 res2;               /* 0x1C */
  91         u16 errstat;            /* 0x20 Error and status */
  92         u16 imsk;               /* 0x22 Interrupt Mask */
  93         u16 iflag;              /* 0x24 Interrupt Flag */
  94         u16 errcnt;             /* 0x26 Error Counter */
  95         u32 res3[3];            /* 0x28 - 0x33 */
  96 #else
  97         u16 res2;               /* 0x1C */
  98         u16 errcnt;             /* 0x1E Error Counter */
  99         u16 res3;               /* 0x20 */
 100         u16 errstat;            /* 0x22 Error and status */
 101         u32 res4;               /* 0x24 */
 102         u32 imsk;               /* 0x28 Interrupt Mask */
 103         u32 res5;               /* 0x2C */
 104         u16 iflag;              /* 0x30 Interrupt Flag */
 105 #endif
 106         u32 res6[19];           /* 0x34 - 0x7F */
 107         void *msgbuf;           /* 0x80 Message Buffer 0-15 */
 108 } can_t;
 109
 110 /* MCR */
 111 #define CAN_MCR_MDIS                    (0x80000000)
 112 #define CAN_MCR_FRZ                     (0x40000000)
 113 #define CAN_MCR_HALT                    (0x10000000)
 114 #define CAN_MCR_NORDY                   (0x08000000)
 115 #define CAN_MCF_WAKEMSK                 (0x04000000)    /* 5282 */
 116 #define CAN_MCR_SOFTRST                 (0x02000000)
 117 #define CAN_MCR_FRZACK                  (0x01000000)
 118 #define CAN_MCR_SUPV                    (0x00800000)
 119 #define CAN_MCR_SELFWAKE                (0x00400000)    /* 5282 */
 120 #define CAN_MCR_APS                     (0x00200000)    /* 5282 */
 121 #define CAN_MCR_LPMACK                  (0x00100000)
 122 #define CAN_MCF_BCC                     (0x00010000)
 123 #define CAN_MCR_MAXMB(x)                ((x) & 0x0F)
 124 #define CAN_MCR_MAXMB_MASK              (0xFFFFFFF0)
 125
 126 /* CTRL */
 127 #define CAN_CTRL_PRESDIV(x)             (((x) & 0xFF) << 24)
 128 #define CAN_CTRL_PRESDIV_MASK           (0x00FFFFFF)
 129 #define CAN_CTRL_RJW(x)                 (((x) & 0x03) << 22)
 130 #define CAN_CTRL_RJW_MASK               (0xFF3FFFFF)
 131 #define CAN_CTRL_PSEG1(x)               (((x) & 0x07) << 19)
 132 #define CAN_CTRL_PSEG1_MASK             (0xFFC7FFFF)
 133 #define CAN_CTRL_PSEG2(x)               (((x) & 0x07) << 16)
 134 #define CAN_CTRL_PSEG2_MASK             (0xFFF8FFFF)
 135 #define CAN_CTRL_BOFFMSK                (0x00008000)
 136 #define CAN_CTRL_ERRMSK                 (0x00004000)
 137 #define CAN_CTRL_CLKSRC                 (0x00002000)
 138 #define CAN_CTRL_LPB                    (0x00001000)
 139 #define CAN_CTRL_RXMODE                 (0x00000400)    /* 5282 */
 140 #define CAN_CTRL_TXMODE(x)              (((x) & 0x03) << 8)     /* 5282 */
 141 #define CAN_CTRL_TXMODE_MASK            (0xFFFFFCFF)    /* 5282 */
 142 #define CAN_CTRL_TXMODE_CAN0            (0x00000000)    /* 5282 */
 143 #define CAN_CTRL_TXMODE_CAN1            (0x00000100)    /* 5282 */
 144 #define CAN_CTRL_TXMODE_OPEN            (0x00000200)    /* 5282 */
 145 #define CAN_CTRL_SMP                    (0x00000080)
 146 #define CAN_CTRL_BOFFREC                (0x00000040)
 147 #define CAN_CTRL_TSYNC                  (0x00000020)
 148 #define CAN_CTRL_LBUF                   (0x00000010)
 149 #define CAN_CTRL_LOM                    (0x00000008)
 150 #define CAN_CTRL_PROPSEG(x)             ((x) & 0x07)
 151 #define CAN_CTRL_PROPSEG_MASK           (0xFFFFFFF8)
 152
 153 /* TIMER */
 154 /* Note: PRESDIV, RJW, PSG1, and PSG2 are part of timer in 5282 */
 155 #define CAN_TIMER(x)                    ((x) & 0xFFFF)
 156 #define CAN_TIMER_MASK                  (0xFFFF0000)
 157
 158 /* RXGMASK */
 159 #ifdef CONFIG_M5282
 160 #define CAN_RXGMSK_MI_STD(x)            (((x) & 0x000007FF) << 21)
 161 #define CAN_RXGMSK_MI_STD_MASK          (0x001FFFFF)
 162 #define CAN_RXGMSK_MI_EXT(x)            (((x) & 0x0003FFFF) << 1)
 163 #define CAN_RXGMSK_MI_EXT_MASK          (0xFFF80001)
 164 #else
 165 #define CAN_RXGMSK_MI_STD(x)            (((x) & 0x000007FF) << 18)
 166 #define CAN_RXGMSK_MI_STD_MASK          (0xE003FFFF)
 167 #define CAN_RXGMSK_MI_EXT(x)            ((x) & 0x0003FFFF)
 168 #define CAN_RXGMSK_MI_EXT_MASK          (0xFFFC0000)
 169 #endif
 170
 171 /* ERRCNT */
 172 #define CAN_ERRCNT_RXECTR(x)            (((x) & 0xFF) << 8)
 173 #define CAN_ERRCNT_RXECTR_MASK          (0x00FF)
 174 #define CAN_ERRCNT_TXECTR(x)            ((x) & 0xFF)
 175 #define CAN_ERRCNT_TXECTR_MASK          (0xFF00)
 176
 177 /* ERRSTAT */
 178 #define CAN_ERRSTAT_BITERR1             (0x8000)
 179 #define CAN_ERRSTAT_BITERR0             (0x4000)
 180 #define CAN_ERRSTAT_ACKERR              (0x2000)
 181 #define CAN_ERRSTAT_CRCERR              (0x1000)
 182 #define CAN_ERRSTAT_FRMERR              (0x0800)
 183 #define CAN_ERRSTAT_STFERR              (0x0400)
 184 #define CAN_ERRSTAT_TXWRN               (0x0200)
 185 #define CAN_ERRSTAT_RXWRN               (0x0100)
 186 #define CAN_ERRSTAT_IDLE                (0x0080)
 187 #define CAN_ERRSTAT_TXRX                (0x0040)
 188 #define CAN_ERRSTAT_FLT_MASK            (0xFFCF)
 189 #define CAN_ERRSTAT_FLT_BUSOFF          (0x0020)
 190 #define CAN_ERRSTAT_FLT_PASSIVE         (0x0010)
 191 #define CAN_ERRSTAT_FLT_ACTIVE          (0x0000)
 192 #ifdef CONFIG_M5282
 193 #define CAN_ERRSTAT_BOFFINT             (0x0004)
 194 #define CAN_ERRSTAT_ERRINT              (0x0002)
 195 #else
 196 #define CAN_ERRSTAT_ERRINT              (0x0004)
 197 #define CAN_ERRSTAT_BOFFINT             (0x0002)
 198 #define CAN_ERRSTAT_WAKEINT             (0x0001)
 199 #endif
 200
 201 /* IMASK */
 202 #ifdef CONFIG_M5253
 203 #define CAN_IMASK_BUFnM(x)              (1 << (x & 0xFFFFFFFF))
 204 #define CAN_IMASK_BUFnM_MASKBIT(x)      ~CAN_IMASK_BUFnM(x)
 205 #else
 206 #define CAN_IMASK_BUFnM(x)              (1 << (x & 0xFFFF))
 207 #define CAN_IMASK_BUFnM_MASKBIT(x)      ~CAN_IMASK_BUFnM(x)
 208 #endif
 209
 210 /* IFLAG */
 211 #ifdef CONFIG_M5253
 212 #define CAN_IFLAG_BUFnM(x)              (1 << (x & 0xFFFFFFFF))
 213 #define CAN_IFLAG_BUFnM_MASKBIT(x)      ~CAN_IFLAG_BUFnM(x)
 214 #else
 215 #define CAN_IFLAG_BUFnM(x)              (1 << (x & 0xFFFF))
 216 #define CAN_IFLAG_BUFnM_MASKBIT(x)      ~CAN_IFLAG_BUFnM(x)
 217 #endif
 218
 219 #endif                          /* __FLEXCAN_H__ */