File: [local] / sys / arch / hppa / dev / uturn.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:05:43 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: uturn.c,v 1.3 2005/04/07 00:21:51 mickey Exp $ */
/*
* Copyright (c) 2004 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.
*/
/* TODO IOA programming */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/reboot.h>
#include <machine/iomod.h>
#include <machine/autoconf.h>
#include <hppa/dev/cpudevs.h>
struct uturn_regs {
u_int64_t resv0[2];
u_int64_t status; /* 0x10: */
u_int64_t resv1[5];
u_int64_t debug; /* 0x40: */
};
struct uturn_softc {
struct device sc_dv;
struct uturn_regs volatile *sc_regs;
};
int uturnmatch(struct device *, void *, void *);
void uturnattach(struct device *, struct device *, void *);
struct cfattach uturn_ca = {
sizeof(struct uturn_softc), uturnmatch, uturnattach
};
struct cfdriver uturn_cd = {
NULL, "uturn", DV_DULL
};
int
uturnmatch(parent, cfdata, aux)
struct device *parent;
void *cfdata;
void *aux;
{
struct confargs *ca = aux;
/* struct cfdata *cf = cfdata; */
/* there will be only one */
if (ca->ca_type.iodc_type != HPPA_TYPE_IOA ||
ca->ca_type.iodc_sv_model != HPPA_IOA_UTURN)
return 0;
if (ca->ca_type.iodc_model == 0x58 &&
ca->ca_type.iodc_revision >= 0x20)
return 0;
return 1;
}
void
uturnattach(parent, self, aux)
struct device *parent;
struct device *self;
void *aux;
{
struct confargs *ca = aux, nca;
struct uturn_softc *sc = (struct uturn_softc *)self;
bus_space_handle_t ioh;
if (bus_space_map(ca->ca_iot, ca->ca_hpa, IOMOD_HPASIZE, 0, &ioh)) {
printf(": can't map IO space\n");
return;
}
sc->sc_regs = (struct uturn_regs *)ca->ca_hpa;
printf(": %s rev %d\n",
ca->ca_type.iodc_revision < 0x10? "U2" : "UTurn",
ca->ca_type.iodc_revision & 0xf);
/* keep it real */
((struct iomod *)ioh)->io_control = 0x80;
nca = *ca; /* clone from us */
nca.ca_hpamask = HPPA_IOBEGIN;
pdc_scanbus(self, &nca, MAXMODBUS, 0);
}