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iomd.h
/* SPDX-License-Identifier: GPL-2.0-only */ /* * arch/arm/include/asm/hardware/iomd.h * * Copyright (C) 1999 Russell King * * This file contains information out the IOMD ASIC used in the * Acorn RiscPC and subsequently integrated into the CLPS7500 chips. */ #ifndef __ASMARM_HARDWARE_IOMD_H #define __ASMARM_HARDWARE_IOMD_H #ifndef __ASSEMBLY__ /* * We use __raw_base variants here so that we give the compiler the * chance to keep IOC_BASE in a register. */ #define iomd_readb(off) __raw_readb(IOMD_BASE + (off)) #define iomd_readl(off) __raw_readl(IOMD_BASE + (off)) #define iomd_writeb(val,off) __raw_writeb(val, IOMD_BASE + (off)) #define iomd_writel(val,off) __raw_writel(val, IOMD_BASE + (off)) #endif #define IOMD_CONTROL (0x000) #define IOMD_KARTTX (0x004) #define IOMD_KARTRX (0x004) #define IOMD_KCTRL (0x008) #define IOMD_IRQSTATA (0x010) #define IOMD_IRQREQA (0x014) #define IOMD_IRQCLRA (0x014) #define IOMD_IRQMASKA (0x018) #define IOMD_IRQSTATB (0x020) #define IOMD_IRQREQB (0x024) #define IOMD_IRQMASKB (0x028) #define IOMD_FIQSTAT (0x030) #define IOMD_FIQREQ (0x034) #define IOMD_FIQMASK (0x038) #define IOMD_T0CNTL (0x040) #define IOMD_T0LTCHL (0x040) #define IOMD_T0CNTH (0x044) #define IOMD_T0LTCHH (0x044) #define IOMD_T0GO (0x048) #define IOMD_T0LATCH (0x04c) #define IOMD_T1CNTL (0x050) #define IOMD_T1LTCHL (0x050) #define IOMD_T1CNTH (0x054) #define IOMD_T1LTCHH (0x054) #define IOMD_T1GO (0x058) #define IOMD_T1LATCH (0x05c) #define IOMD_ROMCR0 (0x080) #define IOMD_ROMCR1 (0x084) #ifdef CONFIG_ARCH_RPC #define IOMD_DRAMCR (0x088) #endif #define IOMD_REFCR (0x08C) #define IOMD_FSIZE (0x090) #define IOMD_ID0 (0x094) #define IOMD_ID1 (0x098) #define IOMD_VERSION (0x09C) #ifdef CONFIG_ARCH_RPC #define IOMD_MOUSEX (0x0A0) #define IOMD_MOUSEY (0x0A4) #endif #ifdef CONFIG_ARCH_RPC #define IOMD_DMATCR (0x0C0) #endif #define IOMD_IOTCR (0x0C4) #define IOMD_ECTCR (0x0C8) #ifdef CONFIG_ARCH_RPC #define IOMD_DMAEXT (0x0CC) #endif #ifdef CONFIG_ARCH_RPC #define DMA_EXT_IO0 1 #define DMA_EXT_IO1 2 #define DMA_EXT_IO2 4 #define DMA_EXT_IO3 8 #define IOMD_IO0CURA (0x100) #define IOMD_IO0ENDA (0x104) #define IOMD_IO0CURB (0x108) #define IOMD_IO0ENDB (0x10C) #define IOMD_IO0CR (0x110) #define IOMD_IO0ST (0x114) #define IOMD_IO1CURA (0x120) #define IOMD_IO1ENDA (0x124) #define IOMD_IO1CURB (0x128) #define IOMD_IO1ENDB (0x12C) #define IOMD_IO1CR (0x130) #define IOMD_IO1ST (0x134) #define IOMD_IO2CURA (0x140) #define IOMD_IO2ENDA (0x144) #define IOMD_IO2CURB (0x148) #define IOMD_IO2ENDB (0x14C) #define IOMD_IO2CR (0x150) #define IOMD_IO2ST (0x154) #define IOMD_IO3CURA (0x160) #define IOMD_IO3ENDA (0x164) #define IOMD_IO3CURB (0x168) #define IOMD_IO3ENDB (0x16C) #define IOMD_IO3CR (0x170) #define IOMD_IO3ST (0x174) #endif #define IOMD_SD0CURA (0x180) #define IOMD_SD0ENDA (0x184) #define IOMD_SD0CURB (0x188) #define IOMD_SD0ENDB (0x18C) #define IOMD_SD0CR (0x190) #define IOMD_SD0ST (0x194) #ifdef CONFIG_ARCH_RPC #define IOMD_SD1CURA (0x1A0) #define IOMD_SD1ENDA (0x1A4) #define IOMD_SD1CURB (0x1A8) #define IOMD_SD1ENDB (0x1AC) #define IOMD_SD1CR (0x1B0) #define IOMD_SD1ST (0x1B4) #endif #define IOMD_CURSCUR (0x1C0) #define IOMD_CURSINIT (0x1C4) #define IOMD_VIDCUR (0x1D0) #define IOMD_VIDEND (0x1D4) #define IOMD_VIDSTART (0x1D8) #define IOMD_VIDINIT (0x1DC) #define IOMD_VIDCR (0x1E0) #define IOMD_DMASTAT (0x1F0) #define IOMD_DMAREQ (0x1F4) #define IOMD_DMAMASK (0x1F8) #define DMA_END_S (1 << 31) #define DMA_END_L (1 << 30) #define DMA_CR_C 0x80 #define DMA_CR_D 0x40 #define DMA_CR_E 0x20 #define DMA_ST_OFL 4 #define DMA_ST_INT 2 #define DMA_ST_AB 1 /* * DMA (MEMC) compatibility */ #define HALF_SAM vram_half_sam #define VDMA_ALIGNMENT (HALF_SAM * 2) #define VDMA_XFERSIZE (HALF_SAM) #define VDMA_INIT IOMD_VIDINIT #define VDMA_START IOMD_VIDSTART #define VDMA_END IOMD_VIDEND #ifndef __ASSEMBLY__ extern unsigned int vram_half_sam; #define video_set_dma(start,end,offset) \ do { \ outl (SCREEN_START + start, VDMA_START); \ outl (SCREEN_START + end - VDMA_XFERSIZE, VDMA_END); \ if (offset >= end - VDMA_XFERSIZE) \ offset |= 0x40000000; \ outl (SCREEN_START + offset, VDMA_INIT); \ } while (0) #endif #endif
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