arch/mn10300/include/asm/dmactl-regs.h

   1 /* MN10300 on-board DMA controller registers
   2  *
   3  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
   4  * Written by David Howells (dhowells@redhat.com)
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public Licence
   8  * as published by the Free Software Foundation; either version
   9  * 2 of the Licence, or (at your option) any later version.
  10  */
  11 #ifndef _ASM_DMACTL_REGS_H
  12 #define _ASM_DMACTL_REGS_H
  13
  14 #include <asm/cpu-regs.h>
  15
  16 #ifdef __KERNEL__
  17
  18 /* DMA registers */
  19 #define DMxCTR(N)               __SYSREG(0xd2000000 + ((N) * 0x100), u32)       /* control reg */
  20 #define DMxCTR_BG               0x0000001f      /* transfer request source */
  21 #define DMxCTR_BG_SOFT          0x00000000      /* - software source */
  22 #define DMxCTR_BG_SC0TX         0x00000002      /* - serial port 0 transmission */
  23 #define DMxCTR_BG_SC0RX         0x00000003      /* - serial port 0 reception */
  24 #define DMxCTR_BG_SC1TX         0x00000004      /* - serial port 1 transmission */
  25 #define DMxCTR_BG_SC1RX         0x00000005      /* - serial port 1 reception */
  26 #define DMxCTR_BG_SC2TX         0x00000006      /* - serial port 2 transmission */
  27 #define DMxCTR_BG_SC2RX         0x00000007      /* - serial port 2 reception */
  28 #define DMxCTR_BG_TM0UFLOW      0x00000008      /* - timer 0 underflow */
  29 #define DMxCTR_BG_TM1UFLOW      0x00000009      /* - timer 1 underflow */
  30 #define DMxCTR_BG_TM2UFLOW      0x0000000a      /* - timer 2 underflow */
  31 #define DMxCTR_BG_TM3UFLOW      0x0000000b      /* - timer 3 underflow */
  32 #define DMxCTR_BG_TM6ACMPCAP    0x0000000c      /* - timer 6A compare/capture */
  33 #define DMxCTR_BG_AFE           0x0000000d      /* - analogue front-end interrupt source */
  34 #define DMxCTR_BG_ADC           0x0000000e      /* - A/D conversion end interrupt source */
  35 #define DMxCTR_BG_IRDA          0x0000000f      /* - IrDA interrupt source */
  36 #define DMxCTR_BG_RTC           0x00000010      /* - RTC interrupt source */
  37 #define DMxCTR_BG_XIRQ0         0x00000011      /* - XIRQ0 pin interrupt source */
  38 #define DMxCTR_BG_XIRQ1         0x00000012      /* - XIRQ1 pin interrupt source */
  39 #define DMxCTR_BG_XDMR0         0x00000013      /* - external request 0 source (XDMR0 pin) */
  40 #define DMxCTR_BG_XDMR1         0x00000014      /* - external request 1 source (XDMR1 pin) */
  41 #define DMxCTR_SAM              0x000000e0      /* DMA transfer src addr mode */
  42 #define DMxCTR_SAM_INCR         0x00000000      /* - increment */
  43 #define DMxCTR_SAM_DECR         0x00000020      /* - decrement */
  44 #define DMxCTR_SAM_FIXED        0x00000040      /* - fixed */
  45 #define DMxCTR_DAM              0x00000000      /* DMA transfer dest addr mode */
  46 #define DMxCTR_DAM_INCR         0x00000000      /* - increment */
  47 #define DMxCTR_DAM_DECR         0x00000100      /* - decrement */
  48 #define DMxCTR_DAM_FIXED        0x00000200      /* - fixed */
  49 #define DMxCTR_TM               0x00001800      /* DMA transfer mode */
  50 #define DMxCTR_TM_BATCH         0x00000000      /* - batch transfer */
  51 #define DMxCTR_TM_INTERM        0x00001000      /* - intermittent transfer */
  52 #define DMxCTR_UT               0x00006000      /* DMA transfer unit */
  53 #define DMxCTR_UT_1             0x00000000      /* - 1 byte */
  54 #define DMxCTR_UT_2             0x00002000      /* - 2 byte */
  55 #define DMxCTR_UT_4             0x00004000      /* - 4 byte */
  56 #define DMxCTR_UT_16            0x00006000      /* - 16 byte */
  57 #define DMxCTR_TEN              0x00010000      /* DMA channel transfer enable */
  58 #define DMxCTR_RQM              0x00060000      /* external request input source mode */
  59 #define DMxCTR_RQM_FALLEDGE     0x00000000      /* - falling edge */
  60 #define DMxCTR_RQM_RISEEDGE     0x00020000      /* - rising edge */
  61 #define DMxCTR_RQM_LOLEVEL      0x00040000      /* - low level */
  62 #define DMxCTR_RQM_HILEVEL      0x00060000      /* - high level */
  63 #define DMxCTR_RQF              0x01000000      /* DMA transfer request flag */
  64 #define DMxCTR_XEND             0x80000000      /* DMA transfer end flag */
  65
  66 #define DMxSRC(N)               __SYSREG(0xd2000004 + ((N) * 0x100), u32)       /* control reg */
  67
  68 #define DMxDST(N)               __SYSREG(0xd2000008 + ((N) * 0x100), u32)       /* src addr reg */
  69
  70 #define DMxSIZ(N)               __SYSREG(0xd200000c + ((N) * 0x100), u32)       /* dest addr reg */
  71 #define DMxSIZ_CT               0x000fffff      /* number of bytes to transfer */
  72
  73 #define DMxCYC(N)               __SYSREG(0xd2000010 + ((N) * 0x100), u32)       /* intermittent
  74                                                                                  * size reg */
  75 #define DMxCYC_CYC              0x000000ff      /* number of interrmittent transfers -1 */
  76
  77 #define DM0IRQ                  16              /* DMA channel 0 complete IRQ */
  78 #define DM1IRQ                  17              /* DMA channel 1 complete IRQ */
  79 #define DM2IRQ                  18              /* DMA channel 2 complete IRQ */
  80 #define DM3IRQ                  19              /* DMA channel 3 complete IRQ */
  81
  82 #define DM0ICR                  GxICR(DM0IRQ)   /* DMA channel 0 complete intr ctrl reg */
  83 #define DM1ICR                  GxICR(DM0IR1)   /* DMA channel 1 complete intr ctrl reg */
  84 #define DM2ICR                  GxICR(DM0IR2)   /* DMA channel 2 complete intr ctrl reg */
  85 #define DM3ICR                  GxICR(DM0IR3)   /* DMA channel 3 complete intr ctrl reg */
  86
  87 #ifndef __ASSEMBLY__
  88
  89 struct mn10300_dmactl_regs {
  90         u32             ctr;
  91         const void      *src;
  92         void            *dst;
  93         u32             siz;
  94         u32             cyc;
  95 } __attribute__((aligned(0x100)));
  96
  97 #endif /* __ASSEMBLY__ */
  98
  99 #endif /* __KERNEL__ */
 100
 101 #endif /* _ASM_DMACTL_REGS_H */