1 /* MN2WS0050 on-board DMA controller registers 2 * 3 * Copyright (C) 2002 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 License 8 * version 2 as published by the Free Software Foundation. 9 */ 10 11 #ifndef _ASM_PROC_DMACTL_REGS_H 12 #define _ASM_PROC_DMACTL_REGS_H 13 14 #include <asm/cpu-regs.h> 15 16 #ifdef __KERNEL__ 17 18 /* DMA registers */ 19 #define DMxCTR(N) __SYSREG(0xd4005000+(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_RYBY 0x0000000d /* - NAND Flash RY/BY request source */ 34 #define DMxCTR_BG_RMC 0x0000000e /* - remote controller output */ 35 #define DMxCTR_BG_XIRQ12 0x00000011 /* - XIRQ12 pin interrupt source */ 36 #define DMxCTR_BG_XIRQ13 0x00000012 /* - XIRQ13 pin interrupt source */ 37 #define DMxCTR_BG_TCK 0x00000014 /* - tick timer underflow */ 38 #define DMxCTR_BG_SC4TX 0x00000019 /* - serial port4 transmission */ 39 #define DMxCTR_BG_SC4RX 0x0000001a /* - serial port4 reception */ 40 #define DMxCTR_BG_SC5TX 0x0000001b /* - serial port5 transmission */ 41 #define DMxCTR_BG_SC5RX 0x0000001c /* - serial port5 reception */ 42 #define DMxCTR_BG_SC6TX 0x0000001d /* - serial port6 transmission */ 43 #define DMxCTR_BG_SC6RX 0x0000001e /* - serial port6 reception */ 44 #define DMxCTR_BG_TMSUFLOW 0x0000001f /* - timestamp timer underflow */ 45 #define DMxCTR_SAM 0x00000060 /* DMA transfer src addr mode */ 46 #define DMxCTR_SAM_INCR 0x00000000 /* - increment */ 47 #define DMxCTR_SAM_DECR 0x00000020 /* - decrement */ 48 #define DMxCTR_SAM_FIXED 0x00000040 /* - fixed */ 49 #define DMxCTR_DAM 0x00000300 /* DMA transfer dest addr mode */ 50 #define DMxCTR_DAM_INCR 0x00000000 /* - increment */ 51 #define DMxCTR_DAM_DECR 0x00000100 /* - decrement */ 52 #define DMxCTR_DAM_FIXED 0x00000200 /* - fixed */ 53 #define DMxCTR_UT 0x00006000 /* DMA transfer unit */ 54 #define DMxCTR_UT_1 0x00000000 /* - 1 byte */ 55 #define DMxCTR_UT_2 0x00002000 /* - 2 byte */ 56 #define DMxCTR_UT_4 0x00004000 /* - 4 byte */ 57 #define DMxCTR_UT_16 0x00006000 /* - 16 byte */ 58 #define DMxCTR_RRE 0x00008000 /* DMA round robin enable */ 59 #define DMxCTR_TEN 0x00010000 /* DMA channel transfer enable */ 60 #define DMxCTR_RQM 0x00060000 /* external request input source mode */ 61 #define DMxCTR_RQM_FALLEDGE 0x00000000 /* - falling edge */ 62 #define DMxCTR_RQM_RISEEDGE 0x00020000 /* - rising edge */ 63 #define DMxCTR_RQM_LOLEVEL 0x00040000 /* - low level */ 64 #define DMxCTR_RQM_HILEVEL 0x00060000 /* - high level */ 65 #define DMxCTR_RQF 0x01000000 /* DMA transfer request flag */ 66 #define DMxCTR_PERR 0x40000000 /* DMA transfer parameter error flag */ 67 #define DMxCTR_XEND 0x80000000 /* DMA transfer end flag */ 68 69 #define DMxSRC(N) __SYSREG(0xd4005004+(N*0x100), u32) /* control reg */ 70 71 #define DMxDST(N) __SYSREG(0xd4005008+(N*0x100), u32) /* source addr reg */ 72 73 #define DMxSIZ(N) __SYSREG(0xd400500c+(N*0x100), u32) /* dest addr reg */ 74 #define DMxSIZ_CT 0x000fffff /* number of bytes to transfer */ 75 76 #define DMxCYC(N) __SYSREG(0xd4005010+(N*0x100), u32) /* intermittent size reg */ 77 #define DMxCYC_CYC 0x000000ff /* number of interrmittent transfers -1 */ 78 79 #define DM0IRQ 16 /* DMA channel 0 complete IRQ */ 80 #define DM1IRQ 17 /* DMA channel 1 complete IRQ */ 81 #define DM2IRQ 18 /* DMA channel 2 complete IRQ */ 82 #define DM3IRQ 19 /* DMA channel 3 complete IRQ */ 83 84 #define DM0ICR GxICR(DM0IRQ) /* DMA channel 0 complete intr ctrl reg */ 85 #define DM1ICR GxICR(DM0IR1) /* DMA channel 1 complete intr ctrl reg */ 86 #define DM2ICR GxICR(DM0IR2) /* DMA channel 2 complete intr ctrl reg */ 87 #define DM3ICR GxICR(DM0IR3) /* DMA channel 3 complete intr ctrl reg */ 88 89 #ifndef __ASSEMBLY__ 90 91 struct mn10300_dmactl_regs { 92 u32 ctr; 93 const void *src; 94 void *dst; 95 u32 siz; 96 u32 cyc; 97 } __attribute__((aligned(0x100))); 98 99 #endif /* __ASSEMBLY__ */ 100 101 #endif /* __KERNEL__ */ 102 103 #endif /* _ASM_PROC_DMACTL_REGS_H */ 104