mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-24 11:29:10 +00:00
263 lines
8.4 KiB
C
263 lines
8.4 KiB
C
/* $NetBSD: sa11x0.c,v 1.14 2003/07/15 00:24:50 lukem Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 2001, The NetBSD Foundation, Inc. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by IWAMOTO Toshihiro and Ichiro FUKUHARA.
|
|
*
|
|
* 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 NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*/
|
|
/*-
|
|
* 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 <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/reboot.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/interrupt.h>
|
|
#include <sys/module.h>
|
|
#include <sys/rman.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/vm_extern.h>
|
|
|
|
#include <machine/cpu.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/intr.h>
|
|
#include <arm/sa11x0/sa11x0_reg.h>
|
|
#include <arm/sa11x0/sa11x0_var.h>
|
|
#include <arm/sa11x0/sa11x0_dmacreg.h>
|
|
#include <arm/sa11x0/sa11x0_ppcreg.h>
|
|
#include <arm/sa11x0/sa11x0_gpioreg.h>
|
|
#include <machine/bus.h>
|
|
|
|
extern void sa11x0_activateirqs(void);
|
|
|
|
static struct resource *sa1110_alloc_resource(device_t, device_t, int, int *,
|
|
u_long, u_long, u_long, u_int);
|
|
|
|
static int sa1110_activate_resource(device_t, device_t, int, int,
|
|
struct resource *);
|
|
static int sa1110_setup_intr(device_t, device_t, struct resource *, int,
|
|
driver_filter_t *, driver_intr_t *, void *, void **);
|
|
|
|
struct sa11x0_softc *sa11x0_softc; /* There can be only one. */
|
|
|
|
static int
|
|
sa1110_setup_intr(device_t dev, device_t child,
|
|
struct resource *ires, int flags, driver_filter_t *filt,
|
|
driver_intr_t *intr, void *arg, void **cookiep)
|
|
{
|
|
int saved_cpsr;
|
|
|
|
if (flags & INTR_TYPE_TTY)
|
|
rman_set_start(ires, 15);
|
|
else if (flags & INTR_TYPE_CLK) {
|
|
if (rman_get_start(ires) == 0)
|
|
rman_set_start(ires, 26);
|
|
else
|
|
rman_set_start(ires, 27);
|
|
}
|
|
saved_cpsr = SetCPSR(I32_bit, I32_bit);
|
|
|
|
SetCPSR(I32_bit, saved_cpsr & I32_bit);
|
|
BUS_SETUP_INTR(device_get_parent(dev), child, ires, flags, filt,
|
|
intr, arg, cookiep);
|
|
return (0);
|
|
}
|
|
|
|
static struct resource *
|
|
sa1110_alloc_resource(device_t bus, device_t child, int type, int *rid,
|
|
u_long start, u_long end, u_long count, u_int flags)
|
|
{
|
|
struct resource *res;
|
|
|
|
res = rman_reserve_resource(&sa11x0_softc->sa11x0_rman, *rid, *rid,
|
|
count, flags, child);
|
|
if (res != NULL)
|
|
rman_set_rid(res, *rid);
|
|
|
|
return (res);
|
|
}
|
|
static int
|
|
sa1110_activate_resource(device_t bus, device_t child, int type, int rid,
|
|
struct resource *r)
|
|
{
|
|
return (0);
|
|
}
|
|
/* prototypes */
|
|
static int sa11x0_probe(device_t);
|
|
static int sa11x0_attach(device_t);
|
|
static void sa11x0_identify(driver_t *, device_t);
|
|
|
|
extern vm_offset_t saipic_base;
|
|
|
|
|
|
int
|
|
sa11x0_probe(device_t dev)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
sa11x0_identify(driver_t *driver, device_t parent)
|
|
{
|
|
|
|
BUS_ADD_CHILD(parent, 0, "saip", 0);
|
|
}
|
|
|
|
int
|
|
sa11x0_attach(device_t dev)
|
|
{
|
|
struct sa11x0_softc *sc = device_get_softc(dev);
|
|
int unit = device_get_unit(dev);
|
|
sc->sc_iot = &sa11x0_bs_tag;
|
|
|
|
sa11x0_softc = sc;
|
|
|
|
/* Map the SAIP */
|
|
|
|
if (bus_space_map(sc->sc_iot, SAIPIC_BASE, SAIPIC_NPORTS,
|
|
0, &sc->sc_ioh))
|
|
panic("saip%d: Cannot map registers", unit);
|
|
saipic_base = sc->sc_ioh;
|
|
|
|
/* Map the GPIO registers */
|
|
if (bus_space_map(sc->sc_iot, SAGPIO_BASE, SAGPIO_NPORTS,
|
|
0, &sc->sc_gpioh))
|
|
panic("saip%d: unable to map GPIO registers", unit);
|
|
bus_space_write_4(sc->sc_iot, sc->sc_gpioh, SAGPIO_EDR, 0xffffffff);
|
|
|
|
/* Map the PPC registers */
|
|
if (bus_space_map(sc->sc_iot, SAPPC_BASE, SAPPC_NPORTS,
|
|
0, &sc->sc_ppch))
|
|
panic("saip%d: unable to map PPC registers", unit);
|
|
|
|
#if 0
|
|
/* Map the DMA controller registers */
|
|
if (bus_space_map(sc->sc_iot, SADMAC_BASE, SADMAC_NPORTS,
|
|
0, &sc->sc_dmach))
|
|
panic("saip%d: unable to map DMAC registers", unit);
|
|
#endif
|
|
/* Map the reset controller registers */
|
|
if (bus_space_map(sc->sc_iot, SARCR_BASE, PAGE_SIZE,
|
|
0, &sc->sc_reseth))
|
|
panic("saip%d: unable to map reset registers", unit);
|
|
printf("\n");
|
|
|
|
|
|
/*
|
|
* Mask all interrupts.
|
|
* They are later unmasked at each device's attach routine.
|
|
*/
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_MR, 0);
|
|
|
|
/* Route all bits to IRQ */
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_LR, 0);
|
|
|
|
/* Exit idle mode only when unmasked intr is received */
|
|
bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_CR, 1);
|
|
#if 0
|
|
/* disable all DMAC channels */
|
|
bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR0_CLR, 1);
|
|
bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR1_CLR, 1);
|
|
bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR2_CLR, 1);
|
|
bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR3_CLR, 1);
|
|
bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR4_CLR, 1);
|
|
bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR5_CLR, 1);
|
|
#endif
|
|
/*
|
|
* XXX this is probably a bad place, but intr bit shouldn't be
|
|
* XXX enabled before intr mask is set.
|
|
* XXX Having sane imask[] suffice??
|
|
*/
|
|
#if 0
|
|
SetCPSR(I32_bit, 0);
|
|
#endif
|
|
/*
|
|
* Attach each devices
|
|
*/
|
|
sc->sa11x0_rman.rm_type = RMAN_ARRAY;
|
|
sc->sa11x0_rman.rm_descr = "SA11x0 IRQs";
|
|
if (rman_init(&sc->sa11x0_rman) != 0 ||
|
|
rman_manage_region(&sc->sa11x0_rman, 0, 32) != 0)
|
|
panic("sa11x0_attach: failed to set up rman");
|
|
device_add_child(dev, "uart", 0);
|
|
device_add_child(dev, "saost", 0);
|
|
bus_generic_probe(dev);
|
|
bus_generic_attach(dev);
|
|
sa11x0_activateirqs();
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t saip_methods[] = {
|
|
DEVMETHOD(device_probe, sa11x0_probe),
|
|
DEVMETHOD(device_attach, sa11x0_attach),
|
|
DEVMETHOD(device_identify, sa11x0_identify),
|
|
DEVMETHOD(bus_alloc_resource, sa1110_alloc_resource),
|
|
DEVMETHOD(bus_activate_resource, sa1110_activate_resource),
|
|
DEVMETHOD(bus_setup_intr, sa1110_setup_intr),
|
|
{0, 0},
|
|
};
|
|
|
|
static driver_t saip_driver = {
|
|
"saip",
|
|
saip_methods,
|
|
sizeof(struct sa11x0_softc),
|
|
};
|
|
static devclass_t saip_devclass;
|
|
|
|
DRIVER_MODULE(saip, nexus, saip_driver, saip_devclass, 0, 0);
|