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/* $OpenBSD: imcreg.h,v 1.1 2012/03/28 20:44:23 miod Exp $ */
/* $NetBSD: imcreg.h,v 1.4 2005/12/11 12:18:52 christos Exp $ */
/*
* Copyright (c) 2001 Rafal K. Boni
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define IMC_BASE 0x1fa00000
#define IMC_CPUCTRL0 0x04 /* CPU control, register 0 */
#define IMC_CPUCTRL0_REFMASK 0x000f /* # lines to refresh */
#define IMC_CPUCTRL0_RFE 0x0010 /* refresh enable */
#define IMC_CPUCTRL0_GPR 0x0020 /* GIO parity enable */
#define IMC_CPUCTRL0_MPR 0x0040 /* memory parity enable */
#define IMC_CPUCTRL0_CPR 0x0080 /* cpu bus parity enable */
#define IMC_CPUCTRL0_WDOG 0x0100 /* watchdog enable */
#define IMC_CPUCTRL0_SIN 0x0200 /* reset system */
#define IMC_CPUCTRL0_GRR 0x0400 /* graphics reset */
#define IMC_CPUCTRL0_ENLOCK 0x0800 /* enable EISA memory lock */
#define IMC_CPUCTRL0_CMDPAR 0x1000 /* SysCmd parity enable */
#define IMC_CPUCTRL0_INTENA 0x2000 /* enable CPU interrupts */
#define IMC_CPUCTRL0_SNOOPENA 0x4000 /* enable gfx DMA snoop */
#define IMC_CPUCTRL0_PROM_WRENA 0x8000 /* disable buserr on PROM
* writes */
#define IMC_CPUCTRL0_WRST 0x00010000 /* warm restart (reset cpu) */
/* Bit 17 reserved 0x00020000 */
#define IMC_CPUCTRL0_LITTLE 0x00040000 /* MC little-endian toggle */
#define IMC_CPUCTRL0_WRRST 0x00080000 /* cpu warm reset */
#define IMC_CPUCTRL0_MUXHWMSK 0x01f00000 /* MUX fifo high-water mask */
#define IMC_CPUCTRL0_BADPAR 0x02000000 /* generate bad parity on
* CPU->memory writes */
#define IMC_CPUCTRL0_NCHKMEMPAR 0x04000000 /* disable CPU parity check
* on memory reads. */
#define IMC_CPUCTRL0_BACK2 0x08000000 /* enable back2back GIO wrt */
#define IMC_CPUCTRL0_BUSRTMSK 0xf0000000 /* stall cycle for berr data */
#define IMC_CPUCTRL1 0x0c /* CPU control, register 1 */
#define IMC_CPUCTRL1_MCHWMSK 0x0000000f /* MC FIFO high water mask */
#define IMC_CPUCTRL1_ABORTEN 0x00000010 /* Enable GIO bus timeouts */
/* Bits 5 - 11 reserved 0x00000fe0 */
#define IMC_CPUCTRL1_HPCFX 0x00001000 /* HPC endian fix */
#define IMC_CPUCTRL1_HPCLITTLE 0x00002000 /* HPC DMA is little-endian */
#define IMC_CPUCTRL1_EXP0FX 0x00004000 /* EXP0 endian fix */
#define IMC_CPUCTRL1_EXP0LITTLE 0x00008000 /* EXP0 DMA is little-endian */
#define IMC_CPUCTRL1_EXP1FX 0x00010000 /* EXP1 endian fix */
#define IMC_CPUCTRL1_EXP1LITTLE 0x00020000 /* EXP1 DMA is little-endian */
#define IMC_WDOG 0x14 /* Watchdog counter */
#define IMC_WDOG_MASK 0x001fffff /* counter mask */
#define IMC_SYSID 0x1c /* MC revision register */
#define IMC_SYSID_REVMASK 0x0000000f /* MC revision mask */
#define IMC_SYSID_HAVEISA 0x00000010 /* EISA present */
#define IMC_RPSSDIV 0x2c /* RPSS divider */
#define IMC_RPSSDIV_DIVMSK 0x000000ff /* RPC divider mask */
#define IMC_RPSSDIV_INCMSK 0x0000ff00 /* RPC increment mask */
#define IMC_EEPROM 0x34 /* EEPROM serial interface */
/* Bit 1 is reserved 0x00000001 */
#define IMC_EEPROM_CS 0x00000002 /* EEPROM chip select */
#define IMC_EEPROM_SCK 0x00000004 /* EEPROM serial clock */
#define IMC_EEPROM_SO 0x00000008 /* Serial data to EEPROM */
#define IMC_EEPROM_SI 0x00000010 /* Serial data from EEPROM */
#define IMC_CTRLD 0x44 /* Refresh counter preload */
#define IMC_CTRLD_MSK 0x000000ff /* Counter preload mask */
#define IMC_REFCTR 0x4c /* Refresh counter */
#define IMC_REFCTR_MSK 0x000000ff /* Refresh counter mask */
#define IMC_GIO64ARB 0x84 /* GIO64 arbitration params */
#define IMC_GIO64ARB_HPC64 0x00000001 /* HPC addr size (32/64bit) */
#define IMC_GIO64ARB_GRX64 0x00000002 /* Gfx addr size (32/64bit) */
#define IMC_GIO64ARB_EXP064 0x00000004 /* EXP0 addr size (32/64bit) */
#define IMC_GIO64ARB_EXP164 0x00000008 /* EXP0 addr size (32/64bit) */
#define IMC_GIO64ARB_EISA64 0x00000010 /* EISA addr size (32/64bit) */
#define IMC_GIO64ARB_HPCEXP64 0x00000020 /* HPC2 addr size (32/64bit) */
#define IMC_GIO64ARB_GRXRT 0x00000040 /* Gfx is realtime device */
#define IMC_GIO64ARB_EXP0RT 0x00000080 /* EXP0 is realtime device */
#define IMC_GIO64ARB_EXP1RT 0x00000100 /* EXP1 is realtime device */
#define IMC_GIO64ARB_EISAMST 0x00000200 /* EISA can be busmaster */
#define IMC_GIO64ARB_ONEGIO 0x00000400 /* Only one GIO64 bus */
#define IMC_GIO64ARB_GRXMST 0x00000800 /* Gfx can be busmaster */
#define IMC_GIO64ARB_EXP0MST 0x00001000 /* EXP0 can be busmaster */
#define IMC_GIO64ARB_EXP1MST 0x00002000 /* EXP1 can be busmaster */
#define IMC_GIO64ARB_EXP0PIPE 0x00004000 /* EXP0 is pipelined */
#define IMC_GIO64ARB_EXP1PIPE 0x00008000 /* EXP1 is pipelined */
#define IMC_CPUTIME 0x8c /* Arbiter CPU time period */
#define IMC_LBTIME 0x9c /* Arbiter long-burst time */
#define IMC_MEMCFG0 0xc4 /* Mem config, register 0 */
#define IMC_MEMCFG1 0xcc /* Mem config, register 1 */
#define IMC_MEMC_BANK_MASK 0x0000ffff
#define IMC_MEMC_BANK_SHIFT 16
#define IMC_MEMC_ADDR_MASK 0x00ff
#define IMC_MEMC_ADDR_SHIFT 0
#define IMC_MEMC_SIZE_MASK 0x1f00
#define IMC_MEMC_SIZE_SHIFT 8
#define IMC_MEMC_LSHIFT 22 /* 4MB units */
#define IMC_MEMC_LSHIFT_HUGE 24 /* 16MB units */
#define IMC_MEMC_VALID 0x2000
#define IMC_MEMC_SUBBANKS 0x4000
#define IMC_CPU_MEMACC 0xd4 /* CPU mem access config */
#define IMC_GIO_MEMACC 0xdc /* GIO mem access config */
#define IMC_CPU_ERRADDR 0xe4 /* CPU error address */
#define IMC_CPU_ERRSTAT 0xec /* CPU error status */
#define IMC_GIO_ERRADDR 0xf4 /* GIO error address */
#define IMC_GIO_ERRSTAT 0xfc /* GIO error status */
#define IMC_RPSS 0x1004 /* RPSS counter */
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