File: [local] / sys / arch / sparc64 / dev / fhc.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:27 2008 UTC (16 years, 4 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: fhc.c,v 1.13 2007/05/01 19:44:56 kettenis Exp $ */
/*
* Copyright (c) 2004 Jason L. Wright (jason@thought.net)
* 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 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/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/conf.h>
#include <sys/timeout.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <machine/openfirm.h>
#include <sparc64/dev/fhcreg.h>
#include <sparc64/dev/fhcvar.h>
#include <sparc64/dev/iommureg.h>
struct cfdriver fhc_cd = {
NULL, "fhc", DV_DULL
};
int fhc_print(void *, const char *);
bus_space_tag_t fhc_alloc_bus_tag(struct fhc_softc *);
int _fhc_bus_map(bus_space_tag_t, bus_space_tag_t, bus_addr_t, bus_size_t,
int, bus_space_handle_t *);
void *fhc_intr_establish(bus_space_tag_t, bus_space_tag_t, int, int, int,
int (*)(void *), void *, const char *);
bus_space_handle_t *fhc_find_intr_handle(struct fhc_softc *, int);
void fhc_led_blink(void *, int);
void
fhc_attach(struct fhc_softc *sc)
{
int node0, node;
u_int32_t ctrl;
printf(" board %d: %s\n", sc->sc_board,
getpropstring(sc->sc_node, "board-model"));
sc->sc_cbt = fhc_alloc_bus_tag(sc);
sc->sc_ign = sc->sc_board << 1;
bus_space_write_4(sc->sc_bt, sc->sc_ireg, FHC_I_IGN, sc->sc_ign);
sc->sc_ign = bus_space_read_4(sc->sc_bt, sc->sc_ireg, FHC_I_IGN);
ctrl = bus_space_read_4(sc->sc_bt, sc->sc_preg, FHC_P_CTRL);
if (!sc->sc_is_central)
ctrl |= FHC_P_CTRL_IXIST;
ctrl &= ~(FHC_P_CTRL_AOFF | FHC_P_CTRL_BOFF | FHC_P_CTRL_SLINE);
bus_space_write_4(sc->sc_bt, sc->sc_preg, FHC_P_CTRL, ctrl);
bus_space_read_4(sc->sc_bt, sc->sc_preg, FHC_P_CTRL);
/* clear interrupts */
bus_space_write_4(sc->sc_bt, sc->sc_freg, FHC_F_ICLR, 0);
bus_space_read_4(sc->sc_bt, sc->sc_freg, FHC_F_ICLR);
bus_space_write_4(sc->sc_bt, sc->sc_sreg, FHC_S_ICLR, 0);
bus_space_read_4(sc->sc_bt, sc->sc_sreg, FHC_S_ICLR);
bus_space_write_4(sc->sc_bt, sc->sc_ureg, FHC_U_ICLR, 0);
bus_space_read_4(sc->sc_bt, sc->sc_ureg, FHC_U_ICLR);
bus_space_write_4(sc->sc_bt, sc->sc_treg, FHC_T_ICLR, 0);
bus_space_read_4(sc->sc_bt, sc->sc_treg, FHC_T_ICLR);
getprop(sc->sc_node, "ranges", sizeof(struct fhc_range),
&sc->sc_nrange, (void **)&sc->sc_range);
node0 = firstchild(sc->sc_node);
for (node = node0; node; node = nextsibling(node)) {
struct fhc_attach_args fa;
bzero(&fa, sizeof(fa));
fa.fa_node = node;
fa.fa_bustag = sc->sc_cbt;
if (fhc_get_string(fa.fa_node, "name", &fa.fa_name)) {
printf("can't fetch name for node 0x%x\n", node);
continue;
}
getprop(node, "reg", sizeof(struct fhc_reg),
&fa.fa_nreg, (void **)&fa.fa_reg);
getprop(node, "interrupts", sizeof(int),
&fa.fa_nintr, (void **)&fa.fa_intr);
getprop(node, "address", sizeof(*fa.fa_promvaddrs),
&fa.fa_npromvaddrs, (void **)&fa.fa_promvaddrs);
(void)config_found(&sc->sc_dv, (void *)&fa, fhc_print);
if (fa.fa_name != NULL)
free(fa.fa_name, M_DEVBUF);
if (fa.fa_reg != NULL)
free(fa.fa_reg, M_DEVBUF);
if (fa.fa_nintr != NULL)
free(fa.fa_intr, M_DEVBUF);
if (fa.fa_promvaddrs != NULL)
free(fa.fa_promvaddrs, M_DEVBUF);
}
sc->sc_blink.bl_func = fhc_led_blink;
sc->sc_blink.bl_arg = sc;
blink_led_register(&sc->sc_blink);
}
int
fhc_print(void *args, const char *busname)
{
struct fhc_attach_args *fa = args;
char *class;
if (busname != NULL) {
printf("%s at %s", fa->fa_name, busname);
class = getpropstring(fa->fa_node, "device_type");
if (*class != '\0')
printf(" class %s", class);
}
return (UNCONF);
}
int
fhc_get_string(int node, char *name, char **buf)
{
int len;
len = getproplen(node, name);
if (len < 0)
return (len);
*buf = (char *)malloc(len + 1, M_DEVBUF, M_NOWAIT);
if (*buf == NULL)
return (-1);
if (len != 0)
getpropstringA(node, name, *buf);
(*buf)[len] = '\0';
return (0);
}
bus_space_tag_t
fhc_alloc_bus_tag(struct fhc_softc *sc)
{
struct sparc_bus_space_tag *bt;
bt = malloc(sizeof(*bt), M_DEVBUF, M_NOWAIT);
if (bt == NULL)
panic("fhc: couldn't alloc bus tag");
bzero(bt, sizeof(*bt));
snprintf(bt->name, sizeof(bt->name), "%s", sc->sc_dv.dv_xname);
bt->cookie = sc;
bt->parent = sc->sc_bt;
bt->asi = bt->parent->asi;
bt->sasi = bt->parent->sasi;
bt->sparc_bus_map = _fhc_bus_map;
/* XXX bt->sparc_bus_mmap = fhc_bus_mmap; */
bt->sparc_intr_establish = fhc_intr_establish;
return (bt);
}
int
_fhc_bus_map(bus_space_tag_t t, bus_space_tag_t t0, bus_addr_t addr,
bus_size_t size, int flags, bus_space_handle_t *hp)
{
struct fhc_softc *sc = t->cookie;
int64_t slot = BUS_ADDR_IOSPACE(addr);
int64_t offset = BUS_ADDR_PADDR(addr);
int i;
if (t->parent == NULL || t->parent->sparc_bus_map == NULL) {
printf("\n_fhc_bus_map: invalid parent");
return (EINVAL);
}
if (flags & BUS_SPACE_MAP_PROMADDRESS)
return ((*t->parent->sparc_bus_map)(t, t0, addr,
size, flags, hp));
for (i = 0; i < sc->sc_nrange; i++) {
bus_addr_t paddr;
if (sc->sc_range[i].cspace != slot)
continue;
paddr = offset - sc->sc_range[i].coffset;
paddr += sc->sc_range[i].poffset;
paddr |= ((bus_addr_t)sc->sc_range[i].pspace << 32);
return ((*t->parent->sparc_bus_map)(t->parent, t0, paddr,
size, flags, hp));
}
return (EINVAL);
}
bus_space_handle_t *
fhc_find_intr_handle(struct fhc_softc *sc, int ino)
{
switch (FHC_INO(ino)) {
case FHC_F_INO:
return &sc->sc_freg;
case FHC_S_INO:
return &sc->sc_sreg;
case FHC_U_INO:
return &sc->sc_ureg;
case FHC_T_INO:
return &sc->sc_treg;
default:
break;
}
return (NULL);
}
void *
fhc_intr_establish(bus_space_tag_t t, bus_space_tag_t t0, int ihandle,
int level, int flags, int (*handler)(void *), void *arg, const char *what)
{
struct fhc_softc *sc = t->cookie;
volatile u_int64_t *intrmapptr = NULL, *intrclrptr = NULL;
struct intrhand *ih;
long vec;
if (level == IPL_NONE)
level = INTLEV(ihandle);
if (level == IPL_NONE) {
printf(": no IPL, setting IPL 2.\n");
level = 2;
}
if ((flags & BUS_INTR_ESTABLISH_SOFTINTR) == 0) {
bus_space_handle_t *hp;
struct fhc_intr_reg *intrregs;
hp = fhc_find_intr_handle(sc, ihandle);
if (hp == NULL) {
printf(": can't find intr handle\n");
return (NULL);
}
intrregs = bus_space_vaddr(sc->sc_bt, *hp);
intrmapptr = &intrregs->imap;
intrclrptr = &intrregs->iclr;
vec = ((sc->sc_ign << INTMAP_IGN_SHIFT) & INTMAP_IGN) |
INTINO(ihandle);
} else
vec = INTVEC(ihandle);
ih = bus_intr_allocate(t0, handler, arg, vec, level, intrmapptr,
intrclrptr, what);
if (ih == NULL)
return (NULL);
intr_establish(ih->ih_pil, ih);
if (intrmapptr != NULL) {
u_int64_t r;
r = *intrmapptr;
r |= INTMAP_V;
*intrmapptr = r;
r = *intrmapptr;
ih->ih_number |= r & INTMAP_INR;
}
return (ih);
}
void
fhc_led_blink(void *vsc, int on)
{
struct fhc_softc *sc = vsc;
int s;
u_int32_t r;
s = splhigh();
r = bus_space_read_4(sc->sc_bt, sc->sc_preg, FHC_P_CTRL);
if (on)
r |= FHC_P_CTRL_RLED;
else
r &= ~FHC_P_CTRL_RLED;
r &= ~(FHC_P_CTRL_AOFF | FHC_P_CTRL_BOFF | FHC_P_CTRL_SLINE);
bus_space_write_4(sc->sc_bt, sc->sc_preg, FHC_P_CTRL, r);
bus_space_read_4(sc->sc_bt, sc->sc_preg, FHC_P_CTRL);
splx(s);
}