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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: mongoosevar.h,v 1.2 2007/05/10 17:59:24 deraadt 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.
 */

struct hppa_isa_iv {
	const char *iv_name;
	int (*iv_handler)(void *arg);
	void *iv_arg;
	int iv_pri;

	/* don't do sharing, we won't have many slots anyway
	struct hppa_isa_iv *iv_next;
	*/
};

struct mongoose_softc {
	struct  device sc_dev;
	void *sc_ih;

	bus_space_tag_t sc_bt;
	volatile struct mongoose_regs *sc_regs;
	volatile struct mongoose_ctrl *sc_ctrl;
	bus_addr_t sc_iomap;

	/* interrupts section */
	struct hppa_eisa_chipset sc_ec;
	struct hppa_isa_chipset sc_ic;
	struct hppa_isa_iv sc_iv[MONGOOSE_NINTS];

	/* isa/eisa bus guts */
	struct hppa_bus_space_tag sc_eiot;
	struct hppa_bus_space_tag sc_ememt;
	struct hppa_bus_dma_tag sc_edmat;
	struct hppa_bus_space_tag sc_iiot;
	struct hppa_bus_space_tag sc_imemt;
	struct hppa_bus_dma_tag sc_idmat;
};

union mongoose_attach_args {
	char *mongoose_name;
	struct eisabus_attach_args mongoose_eisa;
	struct isabus_attach_args mongoose_isa;
};

int	mgattach_common(struct mongoose_softc *);
int	mgprint(void *, const char *);
int	mg_intr(void *);