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141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/* $NetBSD: dwctwo_plb.c,v 1.4 2015/07/30 07:32:40 skrll Exp $ */
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/*
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* Copyright (c) 2013 KIYOHARA Takashi
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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: dwctwo_plb.c,v 1.4 2015/07/30 07:32:40 skrll Exp $");
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/device.h>
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#include <sys/errno.h>
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#include <sys/extent.h>
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#include <powerpc/ibm4xx/cpu.h>
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#include <powerpc/ibm4xx/dev/plbvar.h>
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#include <dev/usb/usb.h>
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#include <dev/usb/usbdi.h>
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#include <dev/usb/usbdivar.h>
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#include <dev/usb/usb_mem.h>
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#include <dwc2/dwc2.h>
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#include <dwc2/dwc2var.h>
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#include "dwc2_core.h"
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#include "locators.h"
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#define DWCTWO_SIZE 0x40000
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static int dwctwo_plb_match(device_t, cfdata_t, void *);
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static void dwctwo_plb_attach(device_t, device_t, void *);
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static void dwctwo_plb_deferred(device_t);
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CFATTACH_DECL_NEW(dwctwo_plb, sizeof(struct dwc2_softc),
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dwctwo_plb_match, dwctwo_plb_attach, NULL, NULL);
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static struct powerpc_bus_space dwctwo_tag = {
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_BUS_SPACE_LITTLE_ENDIAN | _BUS_SPACE_MEM_TYPE,
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0x00000000,
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0x00000000,
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DWCTWO_SIZE
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};
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static char ex_storage[EXTENT_FIXED_STORAGE_SIZE(8)]
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__attribute__((aligned(8)));
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static int
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dwctwo_plb_match(device_t parent, cfdata_t match, void *aux)
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{
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struct plb_attach_args *paa = aux;
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if (strcmp(paa->plb_name, match->cf_name) != 0)
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return 0;
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if (match->cf_loc[PLBCF_ADDR] == PLBCF_ADDR_DEFAULT)
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panic("dwctwo_plb_match: wildcard addr not allowed");
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if (match->cf_loc[PLBCF_IRQ] == PLBCF_IRQ_DEFAULT)
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panic("dwctwo_plb_match: wildcard IRQ not allowed");
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paa->plb_addr = match->cf_loc[PLBCF_ADDR];
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paa->plb_irq = match->cf_loc[PLBCF_IRQ];
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return 1;
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}
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static void
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dwctwo_plb_attach(device_t parent, device_t self, void *aux)
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{
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struct dwc2_softc *sc = device_private(self);
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struct plb_attach_args *paa = aux;
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prop_dictionary_t dict = device_properties(self);
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uint32_t srst0;
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sc->sc_dev = self;
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/* get core parameters */
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if (!prop_dictionary_get_uint32(dict, "params",
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(uint32_t *)&sc->sc_params)) {
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aprint_error("struct dwc2_core_params not found\n");
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return;
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}
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dwctwo_tag.pbs_base = paa->plb_addr;
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dwctwo_tag.pbs_limit += paa->plb_addr;
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if (bus_space_init(&dwctwo_tag, "dwctwotag", ex_storage,
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sizeof(ex_storage)))
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panic("dwctwo_attach: Failed to initialise opb_tag");
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sc->sc_iot = &dwctwo_tag;
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bus_space_map(sc->sc_iot, paa->plb_addr, DWCTWO_SIZE, 0, &sc->sc_ioh);
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sc->sc_bus.dmatag = paa->plb_dmat;
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intr_establish(paa->plb_irq, IST_LEVEL, IPL_VM, dwc2_intr, sc);
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/* Enable the USB interface. */
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mtsdr(DCR_SDR0_PFC1, mfsdr(DCR_SDR0_PFC1) | SDR0_PFC1_USBEN);
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srst0 = mfsdr(DCR_SDR0_SRST0);
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mtsdr(DCR_SDR0_SRST0, srst0 | SDR0_SRST0_UPRST | SDR0_SRST0_AHB);
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delay(200 * 1000); /* XXXX */
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mtsdr(DCR_SDR0_SRST0, srst0);
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config_defer(self, dwctwo_plb_deferred);
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}
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static void
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dwctwo_plb_deferred(device_t self)
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{
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struct dwc2_softc *sc = device_private(self);
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int error;
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error = dwc2_init(sc);
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if (error != 0) {
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aprint_error_dev(self, "couldn't initialize host, error=%d\n",
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error);
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return;
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}
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sc->sc_child = config_found(sc->sc_dev, &sc->sc_bus, usbctlprint);
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}
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