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Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:38 2008 UTC (16 years, 3 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD
Changes since 1.1: +0 -0 lines 

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: devopen.c,v 1.2 2002/03/14 03:15:56 millert Exp $ */

#include <sys/param.h>
#include <stand.h>

/*
 * Open the device named by the combined device/file name
 * given as the "fname" arg, something like: "sd()bsd"
 *
 * However, Sun PROMs don't really let you choose which
 * device you will talk to.  You can only open the device
 * that was used to load the boot program.  Therefore, we
 * do not accept a "device" part in the "fname" string.
 * Pass the PROM device name to open in case it needs it.
 */
int
devopen(f, fname, file)
	struct open_file *f;
	const char *fname;
	char **file;
{
	struct devsw *dp;
	char *cp, *path, *devname;
	int error;

	*file = (char *)fname;
	dp = &devsw[0];
	f->f_dev = dp;
	error = (*dp->dv_open)(f, NULL);

	return (error);
}