NetBSD-5.0.2/sys/arch/arm/gemini/gemini_obio.c
/* $NetBSD: gemini_obio.c,v 1.1 2008/10/24 04:23:18 matt Exp $ */
/* adapted from:
* $Id: gemini_obio.c,v 1.1 2008/10/24 04:23:18 matt Exp $
*/
/*
* Autoconfiguration support for the Texas Instruments OMAP "On Board" I/O.
*
* Based on arm/omap/omap_emifs.c which in turn was derived
* Based on arm/xscale/pxa2x0.c which in turn was derived
* from arm/sa11x0/sa11x0.c
*
* Copyright (c) 2002, 2005 Genetec Corporation. All rights reserved.
* Written by Hiroyuki Bessho for Genetec Corporation.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Genetec Corporation.
* 4. The name of Genetec Corporation may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``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 GENETEC CORPORATION
* 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.
*
* Copyright (c) 1997,1998, 2001, The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by IWAMOTO Toshihiro, Ichiro FUKUHARA and Paul Kranenburg.
*
* 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*
* Copyright (c) 1999
* Shin Takemura and PocketBSD Project. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the PocketBSD project
* and its contributors.
* 4. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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 "opt_gemini.h"
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: gemini_obio.c,v 1.1 2008/10/24 04:23:18 matt Exp $");
#include "locators.h"
#include "obio.h"
#include "geminiicu.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/reboot.h>
#include <machine/cpu.h>
#include <machine/bus.h>
#include <arm/cpufunc.h>
#include <arm/mainbus/mainbus.h>
#include <arm/gemini/gemini_var.h>
#include <arm/gemini/gemini_reg.h>
#include <arm/gemini/gemini_obiovar.h>
typedef struct {
boolean_t cs_valid;
ulong cs_addr;
ulong cs_size;
} obio_csconfig_t;
/* prototypes */
static int obio_match(device_t, cfdata_t, void *);
static void obio_attach(device_t, device_t, void *);
static int obio_search(device_t, cfdata_t, const int *, void *);
static int obio_find(device_t, cfdata_t, const int *, void *);
static int obio_print(void *, const char *);
static void obio_attach_critical(struct obio_softc *);
/* attach structures */
CFATTACH_DECL(obio, sizeof(struct obio_softc),
obio_match, obio_attach, NULL, NULL);
static int
obio_match(device_t parent, cfdata_t match, void *aux)
{
return 1;
}
static void
obio_attach(device_t parent, device_t self, void *aux)
{
struct obio_softc *sc = device_private(self);
struct mainbus_attach_args *mb = (struct mainbus_attach_args *)aux;
struct pcibus_attach_args pba;
sc->sc_iot = &gemini_bs_tag;
aprint_normal(": On-Board IO\n");
sc->sc_ioh = 0;
sc->sc_dmat = &gemini_bus_dma_tag;
sc->sc_base = mb->mb_iobase;
sc->sc_size = mb->mb_iosize;
/*
* Attach critical devices first.
*/
obio_attach_critical(sc);
/*
* map PCI controller registers
*/
if (bus_space_map(sc->sc_iot, GEMINI_PCICFG_BASE,
GEMINI_PCI_CFG_DATA+4, 0, &sc->sc_pcicfg_ioh)) {
aprint_error("cannot map PCI controller at %#x\n",
GEMINI_PCICFG_BASE);
return;
}
/*
* initialize the PCI chipset tag
*/
gemini_pci_init(&sc->sc_pci_chipset, sc);
/*
* attach the rest of our devices
*/
config_search_ia(obio_search, self, "obio", NULL);
/*
* attach the PCI bus
*/
pba.pba_memt = sc->sc_iot;
pba.pba_iot = sc->sc_iot;;
pba.pba_dmat = sc->sc_dmat;
pba.pba_dmat64 = NULL;
pba.pba_pc = &sc->sc_pci_chipset;
pba.pba_bus = 0;
pba.pba_bridgetag = NULL;
pba.pba_intrswiz = 0;
pba.pba_intrtag = 0;
pba.pba_flags = PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED |
PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY | PCI_FLAGS_MWI_OKAY;
(void) config_found_ia(&sc->sc_dev, "pcibus", &pba, pcibusprint);
}
static int
obio_search(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{
struct obio_softc * const sc = device_private(parent);
struct obio_attach_args oa;
/* Set up the attach args. */
if (cf->cf_loc[OBIOCF_NOBYTEACC] == 1) {
#if 0
if (cf->cf_loc[OBIOCF_MULT] == 1)
oa.obio_iot = &nobyteacc_bs_tag;
else
#endif
panic("nobyteacc specified for device with "
"non-byte multiplier\n");
} else {
switch (cf->cf_loc[OBIOCF_MULT]) {
case 1:
oa.obio_iot = &gemini_bs_tag;
break;
#if 0
case 2:
oa.obio_iot = &gemini_a2x_bs_tag;
break;
#endif
case 4:
oa.obio_iot = &gemini_a4x_bs_tag;
break;
default:
panic("Unsupported obio bus multiplier.");
break;
}
}
oa.obio_dmat = sc->sc_dmat;
oa.obio_addr = cf->cf_loc[OBIOCF_ADDR];
oa.obio_size = cf->cf_loc[OBIOCF_SIZE];
oa.obio_intr = cf->cf_loc[OBIOCF_INTR];
oa.obio_intrbase = cf->cf_loc[OBIOCF_INTRBASE];
if (config_match(parent, cf, &oa)) {
config_attach(parent, cf, &oa, obio_print);
return 0; /* love it */
}
return UNCONF; /* NG */
}
static int
obio_find(device_t parent, cfdata_t cf, const int *ldesc, void *aux)
{
struct obio_attach_args * const oa = aux;
if (oa->obio_addr != OBIOCF_ADDR_DEFAULT
&& oa->obio_addr != cf->cf_loc[OBIOCF_ADDR])
return 0;
if (oa->obio_size != OBIOCF_SIZE_DEFAULT
&& oa->obio_size != cf->cf_loc[OBIOCF_SIZE])
return 0;
if (oa->obio_intr != OBIOCF_INTR_DEFAULT
&& oa->obio_intr != cf->cf_loc[OBIOCF_INTR])
return 0;
if (oa->obio_intrbase != OBIOCF_INTRBASE_DEFAULT
&& oa->obio_intrbase != cf->cf_loc[OBIOCF_INTRBASE])
return 0;
/* Set up the attach args. */
if (cf->cf_loc[OBIOCF_NOBYTEACC] == 1) {
#if 0
if (cf->cf_loc[OBIOCF_MULT] == 1)
oa->obio_iot = &nobyteacc_bs_tag;
else
#endif
panic("nobyteacc specified for device with "
"non-byte multiplier\n");
} else {
switch (cf->cf_loc[OBIOCF_MULT]) {
case 1:
oa->obio_iot = &gemini_bs_tag;
break;
#if 0
case 2:
oa->obio_iot = &gemini_a2x_bs_tag;
break;
#endif
case 4:
oa->obio_iot = &gemini_a4x_bs_tag;
break;
default:
panic("Unsupported obio bus multiplier.");
break;
}
}
oa->obio_addr = cf->cf_loc[OBIOCF_ADDR];
oa->obio_size = cf->cf_loc[OBIOCF_SIZE];
oa->obio_intr = cf->cf_loc[OBIOCF_INTR];
oa->obio_intrbase = cf->cf_loc[OBIOCF_INTRBASE];
return config_match(parent, cf, oa);
}
#if NGEMINIICU == 0
#error no geminiicu present in config file
#endif
static const struct {
const char *name;
bus_addr_t addr;
bool required;
} critical_devs[] = {
{ .name = "geminiicu0", .addr = 0x48000000, .required = true },
{ .name = "geminiwdt0", .addr = 0x41000000, .required = true },
{ .name = "geminitmr0", .addr = 0x43000000, .required = true },
{ .name = "geminitmr1", .addr = 0x43000000, .required = true },
{ .name = "geminitmr2", .addr = 0x43000000, .required = true },
{ .name = "com0", .addr = 0x42000000, .required = true },
};
static void
obio_attach_critical(struct obio_softc *sc)
{
struct obio_attach_args oa;
cfdata_t cf;
size_t i;
for (i = 0; i < __arraycount(critical_devs); i++) {
oa.obio_iot = sc->sc_iot;
oa.obio_dmat = sc->sc_dmat;
oa.obio_addr = critical_devs[i].addr;
oa.obio_size = OBIOCF_SIZE_DEFAULT;
oa.obio_intr = OBIOCF_INTR_DEFAULT;
oa.obio_intrbase = OBIOCF_INTRBASE_DEFAULT;
#if 0
if (oa.obio_addr != OBIOCF_ADDR_DEFAULT
&& (oa.obio_addr < sc->sc_base
|| oa.obio_addr >= sc->sc_base + sc->sc_size))
continue;
#endif
cf = config_search_ia(obio_find, &sc->sc_dev, "obio", &oa);
if (cf == NULL && critical_devs[i].required)
panic("obio_attach_critical: failed to find %s!",
critical_devs[i].name);
oa.obio_addr = cf->cf_loc[OBIOCF_ADDR];
oa.obio_size = cf->cf_loc[OBIOCF_SIZE];
oa.obio_intr = cf->cf_loc[OBIOCF_INTR];
oa.obio_intrbase = cf->cf_loc[OBIOCF_INTRBASE];
config_attach(&sc->sc_dev, cf, &oa, obio_print);
}
}
static int
obio_print(void *aux, const char *name)
{
struct obio_attach_args *oa = (struct obio_attach_args*)aux;
if (oa->obio_addr != OBIOCF_ADDR_DEFAULT) {
aprint_normal(" addr 0x%08lx", oa->obio_addr);
if (oa->obio_size != OBIOCF_SIZE_DEFAULT)
aprint_normal("-0x%08lx",
oa->obio_addr + oa->obio_size-1);
}
if (oa->obio_intr != OBIOCF_INTR_DEFAULT)
aprint_normal(" intr %d", oa->obio_intr);
if (oa->obio_intrbase != OBIOCF_INTRBASE_DEFAULT)
aprint_normal(" intrbase %d", oa->obio_intrbase);
return UNCONF;
}