2 * linux/include/asm-arm/hardware/iomd.h
4 * Copyright (C) 1999 Russell King
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * This file contains information out the IOMD ASIC used in the
11 * Acorn RiscPC and subsequently integrated into the CLPS7500 chips.
13 #ifndef __ASMARM_HARDWARE_IOMD_H
14 #define __ASMARM_HARDWARE_IOMD_H
20 * We use __raw_base variants here so that we give the compiler the
21 * chance to keep IOC_BASE in a register.
23 #define iomd_readb(off) __raw_readb(IOMD_BASE + (off))
24 #define iomd_readl(off) __raw_readl(IOMD_BASE + (off))
25 #define iomd_writeb(val,off) __raw_writeb(val, IOMD_BASE + (off))
26 #define iomd_writel(val,off) __raw_writel(val, IOMD_BASE + (off))
30 #define IOMD_CONTROL (0x000)
31 #define IOMD_KARTTX (0x004)
32 #define IOMD_KARTRX (0x004)
33 #define IOMD_KCTRL (0x008)
35 #ifdef CONFIG_ARCH_CLPS7500
36 #define IOMD_IOLINES (0x00C)
39 #define IOMD_IRQSTATA (0x010)
40 #define IOMD_IRQREQA (0x014)
41 #define IOMD_IRQCLRA (0x014)
42 #define IOMD_IRQMASKA (0x018)
44 #ifdef CONFIG_ARCH_CLPS7500
45 #define IOMD_SUSMODE (0x01C)
48 #define IOMD_IRQSTATB (0x020)
49 #define IOMD_IRQREQB (0x024)
50 #define IOMD_IRQMASKB (0x028)
52 #define IOMD_FIQSTAT (0x030)
53 #define IOMD_FIQREQ (0x034)
54 #define IOMD_FIQMASK (0x038)
56 #ifdef CONFIG_ARCH_CLPS7500
57 #define IOMD_CLKCTL (0x03C)
60 #define IOMD_T0CNTL (0x040)
61 #define IOMD_T0LTCHL (0x040)
62 #define IOMD_T0CNTH (0x044)
63 #define IOMD_T0LTCHH (0x044)
64 #define IOMD_T0GO (0x048)
65 #define IOMD_T0LATCH (0x04c)
67 #define IOMD_T1CNTL (0x050)
68 #define IOMD_T1LTCHL (0x050)
69 #define IOMD_T1CNTH (0x054)
70 #define IOMD_T1LTCHH (0x054)
71 #define IOMD_T1GO (0x058)
72 #define IOMD_T1LATCH (0x05c)
74 #ifdef CONFIG_ARCH_CLPS7500
75 #define IOMD_IRQSTATC (0x060)
76 #define IOMD_IRQREQC (0x064)
77 #define IOMD_IRQMASKC (0x068)
79 #define IOMD_VIDMUX (0x06c)
81 #define IOMD_IRQSTATD (0x070)
82 #define IOMD_IRQREQD (0x074)
83 #define IOMD_IRQMASKD (0x078)
86 #define IOMD_ROMCR0 (0x080)
87 #define IOMD_ROMCR1 (0x084)
88 #ifdef CONFIG_ARCH_RPC
89 #define IOMD_DRAMCR (0x088)
91 #define IOMD_REFCR (0x08C)
93 #define IOMD_FSIZE (0x090)
94 #define IOMD_ID0 (0x094)
95 #define IOMD_ID1 (0x098)
96 #define IOMD_VERSION (0x09C)
98 #ifdef CONFIG_ARCH_RPC
99 #define IOMD_MOUSEX (0x0A0)
100 #define IOMD_MOUSEY (0x0A4)
103 #ifdef CONFIG_ARCH_CLPS7500
104 #define IOMD_MSEDAT (0x0A8)
105 #define IOMD_MSECTL (0x0Ac)
108 #ifdef CONFIG_ARCH_RPC
109 #define IOMD_DMATCR (0x0C0)
111 #define IOMD_IOTCR (0x0C4)
112 #define IOMD_ECTCR (0x0C8)
113 #ifdef CONFIG_ARCH_RPC
114 #define IOMD_DMAEXT (0x0CC)
116 #ifdef CONFIG_ARCH_CLPS7500
117 #define IOMD_ASTCR (0x0CC)
118 #define IOMD_DRAMCR (0x0D0)
119 #define IOMD_SELFREF (0x0D4)
120 #define IOMD_ATODICR (0x0E0)
121 #define IOMD_ATODSR (0x0E4)
122 #define IOMD_ATODCC (0x0E8)
123 #define IOMD_ATODCNT1 (0x0EC)
124 #define IOMD_ATODCNT2 (0x0F0)
125 #define IOMD_ATODCNT3 (0x0F4)
126 #define IOMD_ATODCNT4 (0x0F8)
129 #ifdef CONFIG_ARCH_RPC
130 #define DMA_EXT_IO0 1
131 #define DMA_EXT_IO1 2
132 #define DMA_EXT_IO2 4
133 #define DMA_EXT_IO3 8
135 #define IOMD_IO0CURA (0x100)
136 #define IOMD_IO0ENDA (0x104)
137 #define IOMD_IO0CURB (0x108)
138 #define IOMD_IO0ENDB (0x10C)
139 #define IOMD_IO0CR (0x110)
140 #define IOMD_IO0ST (0x114)
142 #define IOMD_IO1CURA (0x120)
143 #define IOMD_IO1ENDA (0x124)
144 #define IOMD_IO1CURB (0x128)
145 #define IOMD_IO1ENDB (0x12C)
146 #define IOMD_IO1CR (0x130)
147 #define IOMD_IO1ST (0x134)
149 #define IOMD_IO2CURA (0x140)
150 #define IOMD_IO2ENDA (0x144)
151 #define IOMD_IO2CURB (0x148)
152 #define IOMD_IO2ENDB (0x14C)
153 #define IOMD_IO2CR (0x150)
154 #define IOMD_IO2ST (0x154)
156 #define IOMD_IO3CURA (0x160)
157 #define IOMD_IO3ENDA (0x164)
158 #define IOMD_IO3CURB (0x168)
159 #define IOMD_IO3ENDB (0x16C)
160 #define IOMD_IO3CR (0x170)
161 #define IOMD_IO3ST (0x174)
164 #define IOMD_SD0CURA (0x180)
165 #define IOMD_SD0ENDA (0x184)
166 #define IOMD_SD0CURB (0x188)
167 #define IOMD_SD0ENDB (0x18C)
168 #define IOMD_SD0CR (0x190)
169 #define IOMD_SD0ST (0x194)
171 #ifdef CONFIG_ARCH_RPC
172 #define IOMD_SD1CURA (0x1A0)
173 #define IOMD_SD1ENDA (0x1A4)
174 #define IOMD_SD1CURB (0x1A8)
175 #define IOMD_SD1ENDB (0x1AC)
176 #define IOMD_SD1CR (0x1B0)
177 #define IOMD_SD1ST (0x1B4)
180 #define IOMD_CURSCUR (0x1C0)
181 #define IOMD_CURSINIT (0x1C4)
183 #define IOMD_VIDCUR (0x1D0)
184 #define IOMD_VIDEND (0x1D4)
185 #define IOMD_VIDSTART (0x1D8)
186 #define IOMD_VIDINIT (0x1DC)
187 #define IOMD_VIDCR (0x1E0)
189 #define IOMD_DMASTAT (0x1F0)
190 #define IOMD_DMAREQ (0x1F4)
191 #define IOMD_DMAMASK (0x1F8)
193 #define DMA_END_S (1 << 31)
194 #define DMA_END_L (1 << 30)
196 #define DMA_CR_C 0x80
197 #define DMA_CR_D 0x40
198 #define DMA_CR_E 0x20
205 * DMA (MEMC) compatibility
207 #define HALF_SAM vram_half_sam
208 #define VDMA_ALIGNMENT (HALF_SAM * 2)
209 #define VDMA_XFERSIZE (HALF_SAM)
210 #define VDMA_INIT IOMD_VIDINIT
211 #define VDMA_START IOMD_VIDSTART
212 #define VDMA_END IOMD_VIDEND
215 extern unsigned int vram_half_sam;
216 #define video_set_dma(start,end,offset) \
218 outl (SCREEN_START + start, VDMA_START); \
219 outl (SCREEN_START + end - VDMA_XFERSIZE, VDMA_END); \
220 if (offset >= end - VDMA_XFERSIZE) \
221 offset |= 0x40000000; \
222 outl (SCREEN_START + offset, VDMA_INIT); \