NetBSD-5.0.2/sys/arch/arm/sa11x0/sa11x0.c
/* $NetBSD: sa11x0.c,v 1.23 2008/06/13 13:24:10 rafal 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.
*
* 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 AUTHOR 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 AUTHOR 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>
__KERNEL_RCSID(0, "$NetBSD: sa11x0.c,v 1.23 2008/06/13 13:24:10 rafal Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/reboot.h>
#include <uvm/uvm_extern.h>
#include <machine/cpu.h>
#include <machine/bus.h>
#include <arm/arm32/psl.h>
#include <arm/arm32/machdep.h>
#include <arm/mainbus/mainbus.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 "locators.h"
/* prototypes */
static int sa11x0_match(struct device *, struct cfdata *, void *);
static void sa11x0_attach(struct device *, struct device *, void *);
static int sa11x0_search(struct device *, struct cfdata *,
const int *, void *);
static int sa11x0_print(void *, const char *);
/* attach structures */
CFATTACH_DECL(saip, sizeof(struct sa11x0_softc),
sa11x0_match, sa11x0_attach, NULL, NULL);
extern struct bus_space sa11x0_bs_tag;
extern vaddr_t saipic_base;
/*
* int sa11x0_print(void *aux, const char *name)
* print configuration info for children
*/
static int
sa11x0_print(void *aux, const char *name)
{
struct sa11x0_attach_args *sa = (struct sa11x0_attach_args*)aux;
if (sa->sa_size)
aprint_normal(" addr 0x%lx", sa->sa_addr);
if (sa->sa_size > 1)
aprint_normal("-0x%lx", sa->sa_addr + sa->sa_size - 1);
if (sa->sa_intr > 1)
aprint_normal(" intr %d", sa->sa_intr);
if (sa->sa_gpio != -1)
aprint_normal(" gpio %d", sa->sa_gpio);
return UNCONF;
}
int
sa11x0_match(struct device *parent, struct cfdata *match, void *aux)
{
return 1;
}
void
sa11x0_attach(struct device *parent, struct device *self, void *aux)
{
struct sa11x0_softc *sc = (struct sa11x0_softc*)self;
sc->sc_iot = &sa11x0_bs_tag;
/* Map the SAIP */
if (bus_space_map(sc->sc_iot, SAIPIC_BASE, SAIPIC_NPORTS,
0, &sc->sc_ioh))
panic("%s: Cannot map registers", self->dv_xname);
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("%s: unable to map GPIO registers", self->dv_xname);
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("%s: unable to map PPC registers", self->dv_xname);
/* Map the DMA controller registers */
if (bus_space_map(sc->sc_iot, SADMAC_BASE, SADMAC_NPORTS,
0, &sc->sc_dmach))
panic("%s: unable to map DMAC registers", self->dv_xname);
/* Map the reset controller registers */
if (bus_space_map(sc->sc_iot, SARCR_BASE, PAGE_SIZE,
0, &sc->sc_reseth))
panic("%s: unable to map reset registers", self->dv_xname);
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);
/* 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);
/* Make sure to init spl masks, note we set the mask to 0 above */
set_spl_masks();
SetCPSR(I32_bit, 0);
/*
* Attach each devices
*/
config_search_ia(sa11x0_search, self, "saip", NULL);
}
int
sa11x0_search(struct device *parent, struct cfdata *cf, const int *ldesc,
void *aux)
{
struct sa11x0_softc *sc = (struct sa11x0_softc *)parent;
struct sa11x0_attach_args sa;
sa.sa_sc = sc;
sa.sa_iot = sc->sc_iot;
sa.sa_addr = cf->cf_loc[SAIPCF_ADDR];
sa.sa_size = cf->cf_loc[SAIPCF_SIZE];
sa.sa_intr = cf->cf_loc[SAIPCF_INTR];
sa.sa_gpio = cf->cf_loc[SAIPCF_GPIO];
if (config_match(parent, cf, &sa) > 0)
config_attach(parent, cf, &sa, sa11x0_print);
return 0;
}