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Import of OpenBSD 4.2 release kernel tree with initial code to support 
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO

Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)

/*	$OpenBSD: mongoosereg.h,v 1.1 2004/10/29 20:23:37 miod Exp $	*/

/*
 * Copyright (c) 1998-2003 Michael Shalayeff
 * 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.
 *
 * 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 OR HIS RELATIVES 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 MIND, 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.
 */

/* EISA Bus Adapter registers definitions */
#define	MONGOOSE_MONGOOSE	0x10000
struct mongoose_regs {
	u_int8_t	version;
	u_int8_t	lock;
	u_int8_t	liowait;
	u_int8_t	clock;
	u_int8_t	reserved[0xf000 - 4];
	u_int8_t	intack;
};

#define	MONGOOSE_CTRL		0x00000
#define	MONGOOSE_NINTS		16
struct mongoose_ctrl {
	struct dma0 {
		struct {
			u_int32_t	addr : 8;
			u_int32_t	count: 8;
		} ch[4];
		u_int8_t	command;
		u_int8_t	request;
		u_int8_t	mask_channel;
		u_int8_t	mode;
		u_int8_t	clr_byte_ptr;
		u_int8_t	master_clear;
		u_int8_t	mask_clear;
		u_int8_t	master_write;
		u_int8_t	pad[8];
	}	dma0;

	u_int8_t	irr0;		/* 0x20 */
	u_int8_t	imr0;
	u_int8_t	iack;		/* 0x22 -- 2 b2b reads generate
					(e)isa Iack cycle & returns int level */
	u_int8_t	pad0[29];

	struct timers {
		u_int8_t	sysclk;
		u_int8_t	refresh;
		u_int8_t	spkr;
		u_int8_t	ctrl;
		u_int32_t	pad;
	}	tmr[2];			/* 0x40 -- timers control */
	u_int8_t	pad1[16];

	u_int16_t	inmi;		/* 0x60 NMI control */
	u_int8_t	pad2[30];
	struct {
		u_int8_t	pad0;
		u_int8_t	ch2;
		u_int8_t	ch3;
		u_int8_t	ch1;
		u_int8_t	pad1;
		u_int8_t	pad2[3];
		u_int8_t	ch0;
		u_int8_t	pad4;
		u_int8_t	ch6;
		u_int8_t	ch7;
		u_int8_t	ch5;
		u_int8_t	pad5[3];
		u_int8_t	pad6[16];
	} pr;				/* 0x80 */

	u_int8_t	irr1;		/* 0xa0 */
	u_int8_t	imr1;
	u_int8_t	pad3[30];

	struct dma1 {
		struct {
			u_int32_t	addr : 8;
			u_int32_t	pad0 : 8;
			u_int32_t	count: 8;
			u_int32_t	pad1 : 8;
		} ch[4];
		u_int8_t	command;
		u_int8_t	pad0;
		u_int8_t	request;
		u_int8_t	pad1;
		u_int8_t	mask_channel;
		u_int8_t	pad2;
		u_int8_t	mode;
		u_int8_t	pad3;
		u_int8_t	clr_byte_ptr;
		u_int8_t	pad4;
		u_int8_t	master_clear;
		u_int8_t	pad5;
		u_int8_t	mask_clear;
		u_int8_t	pad6;
		u_int8_t	master_write;
		u_int8_t	pad7;
	}	dma1;			/* 0xc0 */

	u_int8_t	master_req;	/* 0xe0 master request register */
	u_int8_t	pad4[31];

	u_int8_t	pad5[0x3d0];	/* 0x4d0 */
	u_int8_t	pic0;		/* 0 - edge, 1 - level */
	u_int8_t	pic1;
	u_int8_t	pad6[0x460];
	u_int8_t	nmi;
	u_int8_t	nmi_ext;
#define	MONGOOSE_NMI_BUSRESET	0x01
#define	MONGOOSE_NMI_IOPORT_EN	0x02
#define	MONGOOSE_NMI_EN		0x04
#define	MONGOOSE_NMI_MTMO_EN	0x08
#define	MONGOOSE_NMI_RES4	0x10
#define	MONGOOSE_NMI_IOPORT_INT	0x20
#define	MONGOOSE_NMI_MASTER_INT	0x40
#define	MONGOOSE_NMI_INT	0x80
};

#define	MONGOOSE_IOMAP	0x100000