219 lines
7.3 KiB
C
219 lines
7.3 KiB
C
/* $NetBSD: sa11x0.c,v 1.3 2001/07/30 16:23:09 rjs Exp $ */
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/*-
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* Copyright (c) 2001, The NetBSD Foundation, Inc. All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by IWAMOTO Toshihiro and Ichiro FUKUHARA.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*/
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/*-
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* Copyright (c) 1999
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* Shin Takemura and PocketBSD Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the PocketBSD project
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* and its contributors.
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* 4. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <sys/kernel.h>
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#include <sys/reboot.h>
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#include <machine/cpu.h>
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#include <machine/bus.h>
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#include <arm/mainbus/mainbus.h>
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#include <arm/sa11x0/sa11x0_reg.h>
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#include <arm/sa11x0/sa11x0_var.h>
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#include <arm/sa11x0/sa11x0_dmacreg.h>
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#include <arm/sa11x0/sa11x0_ppcreg.h>
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#include <arm/sa11x0/sa11x0_gpioreg.h>
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#include "locators.h"
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/* prototypes */
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static int sa11x0_match(struct device *, struct cfdata *, void *);
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static void sa11x0_attach(struct device *, struct device *, void *);
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static int sa11x0_search(struct device *, struct cfdata *, void *);
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static int sa11x0_print(void *, const char *);
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/* attach structures */
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struct cfattach saip_ca = {
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sizeof(struct sa11x0_softc), sa11x0_match, sa11x0_attach
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};
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extern struct bus_space sa11x0_bs_tag;
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extern vaddr_t saipic_base;
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extern int SetCPSR(int, int);
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/*
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* int sa11x0_print(void *aux, const char *name)
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* print configuration info for children
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*/
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static int
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sa11x0_print(aux, name)
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void *aux;
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const char *name;
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{
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struct sa11x0_attach_args *sa = (struct sa11x0_attach_args*)aux;
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if (sa->sa_size)
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printf(" addr 0x%lx", sa->sa_addr);
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if (sa->sa_size > 1)
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printf("-0x%lx", sa->sa_addr + sa->sa_size - 1);
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if (sa->sa_memsize)
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printf(" membase 0x%lx", sa->sa_membase);
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if (sa->sa_memsize > 1)
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printf("-0x%lx", sa->sa_membase + sa->sa_memsize - 1);
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if (sa->sa_intr > 1)
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printf(" intr %d", sa->sa_intr);
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if (sa->sa_gpio != -1)
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printf(" gpio %d", sa->sa_gpio);
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return (UNCONF);
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}
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int
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sa11x0_match(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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return 1;
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}
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void
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sa11x0_attach(parent, self, aux)
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struct device *parent;
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struct device *self;
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void *aux;
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{
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struct sa11x0_softc *sc = (struct sa11x0_softc*)self;
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sc->sc_iot = &sa11x0_bs_tag;
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/* Map the SAIP */
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if (bus_space_map(sc->sc_iot, SAIPIC_BASE, SAIPIC_NPORTS,
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0, &sc->sc_ioh))
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panic("%s: Cannot map registers\n", self->dv_xname);
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saipic_base = sc->sc_ioh;
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/* Map the GPIO registers */
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if (bus_space_map(sc->sc_iot, SAGPIO_BASE, SAGPIO_NPORTS,
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0, &sc->sc_gpioh))
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panic("%s: unable to map GPIO registers\n", self->dv_xname);
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bus_space_write_4(sc->sc_iot, sc->sc_gpioh, SAGPIO_EDR, 0xffffffff);
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/* Map the PPC registers */
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if (bus_space_map(sc->sc_iot, SAPPC_BASE, SAPPC_NPORTS,
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0, &sc->sc_ppch))
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panic("%s: unable to map PPC registers\n", self->dv_xname);
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/* Map the DMA controller registers */
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if (bus_space_map(sc->sc_iot, SADMAC_BASE, SADMAC_NPORTS,
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0, &sc->sc_dmach))
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panic("%s: unable to map DMAC registers\n", self->dv_xname);
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printf("\n");
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/*
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* Mask all interrupts.
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* They are later unmasked at each device's attach routine.
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*/
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bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_MR, 0);
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/* Route all bits to IRQ */
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bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_LR, 0);
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/* Exit idle mode only when unmasked intr is received */
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bus_space_write_4(sc->sc_iot, sc->sc_ioh, SAIPIC_CR, 1);
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/* disable all DMAC channels */
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bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR0_CLR, 1);
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bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR1_CLR, 1);
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bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR2_CLR, 1);
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bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR3_CLR, 1);
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bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR4_CLR, 1);
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bus_space_write_4(sc->sc_iot, sc->sc_dmach, SADMAC_DCR5_CLR, 1);
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/*
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* XXX this is probably a bad place, but intr bit shouldn't be
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* XXX enabled before intr mask is set.
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* XXX Having sane imask[] suffice??
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*/
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SetCPSR(I32_bit, 0);
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/*
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* Attach each devices
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*/
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config_search(sa11x0_search, self, NULL);
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}
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int
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sa11x0_search(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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void *aux;
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{
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struct sa11x0_softc *sc = (struct sa11x0_softc *)parent;
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struct sa11x0_attach_args sa;
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sa.sa_sc = sc;
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sa.sa_iot = sc->sc_iot;
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sa.sa_addr = cf->cf_loc[SAIPCF_ADDR];
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sa.sa_size = cf->cf_loc[SAIPCF_SIZE];
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sa.sa_membase = cf->cf_loc[SAIPCF_MEMBASE];
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sa.sa_memsize = cf->cf_loc[SAIPCF_MEMSIZE];
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sa.sa_intr = cf->cf_loc[SAIPCF_INTR];
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sa.sa_gpio = cf->cf_loc[SAIPCF_GPIO];
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if ((*cf->cf_attach->ca_match)(parent, cf, &sa) > 0)
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config_attach(parent, cf, &sa, sa11x0_print);
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return 0;
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}
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