File: [local] / sys / arch / aviion / dev / dart_syscon.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:55 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)
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/* $OpenBSD: dart_syscon.c,v 1.1.1.1 2006/05/09 18:13:37 miod Exp $ */
/*
* Copyright (c) 2006, Miodrag Vallat
*
* 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 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <machine/av400.h>
#include <aviion/dev/sysconreg.h>
#include <aviion/dev/dartvar.h>
int dart_syscon_match(struct device *parent, void *self, void *aux);
void dart_syscon_attach(struct device *parent, struct device *self, void *aux);
struct cfattach dart_syscon_ca = {
sizeof(struct dartsoftc), dart_syscon_match, dart_syscon_attach
};
int
dart_syscon_match(struct device *parent, void *cf, void *aux)
{
struct confargs *ca = aux;
bus_space_handle_t ioh;
int rc;
/*
* We do not accept empty locators here...
*/
if (ca->ca_paddr == (paddr_t)-1)
return (0);
if (bus_space_map(ca->ca_iot, ca->ca_paddr, DART_SIZE, 0, &ioh) != 0)
return (0);
rc = badaddr((vaddr_t)bus_space_vaddr(ca->ca_iot, ioh), 4);
bus_space_unmap(ca->ca_iot, ca->ca_paddr, DART_SIZE);
return (rc == 0);
}
void
dart_syscon_attach(struct device *parent, struct device *self, void *aux)
{
struct dartsoftc *sc = (struct dartsoftc *)self;
struct confargs *ca = aux;
bus_space_handle_t ioh;
u_int vec;
if (ca->ca_ipl < 0)
ca->ca_ipl = IPL_TTY;
sc->sc_iot = ca->ca_iot;
if (bus_space_map(sc->sc_iot, ca->ca_paddr, DART_SIZE, 0, &ioh) != 0) {
printf(": can't map registers!\n");
return;
}
sc->sc_ioh = ioh;
if (ca->ca_paddr == DART_BASE) {
vec = SYSCV_SCC;
sc->sc_console = 1; /* XXX for now */
printf(": console");
} else {
vec = SYSCV_SCC2;
sc->sc_console = 0;
}
/* enable interrupts */
sc->sc_ih.ih_fn = dartintr;
sc->sc_ih.ih_arg = sc;
sc->sc_ih.ih_wantframe = 0;
sc->sc_ih.ih_ipl = ca->ca_ipl;
sysconintr_establish(vec, &sc->sc_ih, self->dv_xname);
dart_common_attach(sc);
}