add SD/MMC driver for Twintail based on the driver for Zaurus.
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bsh
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95e7a9c9b7
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4308bedb7d
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@ -1,4 +1,4 @@
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# $NetBSD: TWINTAIL,v 1.33 2010/03/07 09:39:42 plunky Exp $
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# $NetBSD: TWINTAIL,v 1.34 2010/03/13 11:37:47 bsh Exp $
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#
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# TWINTAIL -- Genetec corp. G4255EB-X002 Evaluation Board Kernel
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#
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@ -353,6 +353,22 @@ mhzc* at pcmcia? function ? # Megahertz Ethernet/Modem combo cards
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com* at mhzc?
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sm* at mhzc?
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# DMAC support
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pxadmac0 at pxaip? addr 0x40000000 intr 25
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options PXA2X0_DMAC_DMOVER_CONCURRENCY=4 # Enable dmover(9) backend
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#options PXA2X0_DMAC_FIXED_PRIORITY # Don't want multiple priority
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# MMC/SD contoller in PXA255
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# (attached on obio for card detect and write protect signal)
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pxamci0 at obio?
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sdmmc* at pxamci?
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#options PXAMCI_DEBUG
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#options SDMMC_DEBUG
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#options SDMMC_DUMP_CSD
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ld* at sdmmc? # MMC/SD card
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# Pseudo-Devices
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# disk/mass storage pseudo-devices
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@ -1,4 +1,4 @@
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# $NetBSD: files.g42xxeb,v 1.5 2008/03/17 09:30:02 kiyohara Exp $
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# $NetBSD: files.g42xxeb,v 1.6 2010/03/13 11:37:47 bsh Exp $
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#
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# Genetec corp. G4255EB evaluation board configuration info
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#
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@ -8,6 +8,9 @@ file arch/evbarm/g42xxeb/g42xxeb_machdep.c
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# CPU support and integrated peripherals
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include "arch/arm/xscale/files.pxa2x0"
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# Machine-independent SD/MMC drivers
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include "dev/sdmmc/files.sdmmc"
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# G4250EBX on-board devices (including CPLD)
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device obio {[addr=-1], [intr=-1]}
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attach obio at pxaip
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@ -39,3 +42,6 @@ file arch/evbarm/g42xxeb/gb225_pcic.c opcic
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# Cypress SL811HS USB host controller
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attach slhci at opio with slhci_opio
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file arch/evbarm/g42xxeb/gb225_slhci.c slhci_opio
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attach pxamci at obio with pxamci_obio
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file arch/evbarm/g42xxeb/g42xxeb_mci.c pxamci_obio
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@ -0,0 +1,239 @@
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/* $NetBSD: g42xxeb_mci.c,v 1.1 2010/03/13 11:37:47 bsh Exp $ */
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/*-
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* Copyright (c) 2009 Genetec Corporation. All rights reserved.
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* Written by Hiroyuki Bessho for Genetec Corporation.
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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
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* 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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/* derived from zaurus/dev/zmci.c */
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/*-
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* Copyright (c) 2006-2008 NONAKA Kimihiro <nonaka@netbsd.org>
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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 REGENTS AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* 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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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: g42xxeb_mci.c,v 1.1 2010/03/13 11:37:47 bsh Exp $");
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/systm.h>
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#include <sys/bus.h>
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#include <sys/pmf.h>
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#include <machine/intr.h>
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#include <arm/xscale/pxa2x0cpu.h>
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#include <arm/xscale/pxa2x0reg.h>
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#include <arm/xscale/pxa2x0var.h>
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#include <arm/xscale/pxa2x0_gpio.h>
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#include <arm/xscale/pxa2x0_mci.h>
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#include <dev/sdmmc/sdmmcreg.h>
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#include <arm/xscale/pxa2x0var.h>
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#include <evbarm/g42xxeb/g42xxeb_var.h>
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struct g42xxeb_mci_softc {
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struct pxamci_softc sc_mci;
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bus_space_tag_t sc_obio_iot;
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bus_space_handle_t sc_obio_ioh;
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void *sc_detect_ih;
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};
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static int pxamci_match(device_t, cfdata_t, void *);
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static void pxamci_attach(device_t, device_t, void *);
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CFATTACH_DECL_NEW(pxamci_obio, sizeof(struct g42xxeb_mci_softc),
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pxamci_match, pxamci_attach, NULL, NULL);
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static int g42xxeb_mci_intr(void *arg);
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static uint32_t g42xxeb_mci_get_ocr(void *);
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static int g42xxeb_mci_set_power(void *, uint32_t);
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static int g42xxeb_mci_card_detect(void *);
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static int g42xxeb_mci_write_protect(void *);
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static int
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pxamci_match(device_t parent, cfdata_t cf, void *aux)
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{
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if (strcmp(cf->cf_name, "pxamci") == 0)
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return 1;
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return 0;
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}
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struct pxa2x0_gpioconf g42xxeb_pxamci_gpioconf[] = {
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{ 6, GPIO_CLR | GPIO_ALT_FN_1_OUT }, /* MMCCLK */
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{ 8, GPIO_CLR | GPIO_ALT_FN_1_OUT }, /* MMCCS0 */
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{ 9, GPIO_CLR | GPIO_ALT_FN_1_OUT }, /* MMCCS1 */
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{ -1 }
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};
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static void
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pxamci_attach(device_t parent, device_t self, void *aux)
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{
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struct g42xxeb_mci_softc *sc = device_private(self);
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struct obio_attach_args *oba = aux;
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struct obio_softc *osc = device_private(parent);
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struct pxaip_attach_args pxa;
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struct pxa2x0_gpioconf *gpioconf[] = {
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g42xxeb_pxamci_gpioconf,
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NULL
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};
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bus_space_tag_t iot = oba->oba_iot;
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sc->sc_mci.sc_dev = self;
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pxa2x0_gpio_config(gpioconf);
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/* Establish card detect interrupt */
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sc->sc_detect_ih = obio_intr_establish(osc, G42XXEB_INT_MMCSD,
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IPL_BIO, IST_EDGE_BOTH, g42xxeb_mci_intr, sc);
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if (sc->sc_detect_ih == NULL) {
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aprint_error_dev(self,
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"unable to establish SD detect interrupt\n");
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return;
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}
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sc->sc_mci.sc_tag.cookie = sc;
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sc->sc_mci.sc_tag.get_ocr = g42xxeb_mci_get_ocr;
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sc->sc_mci.sc_tag.set_power = g42xxeb_mci_set_power;
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sc->sc_mci.sc_tag.card_detect = g42xxeb_mci_card_detect;
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sc->sc_mci.sc_tag.write_protect = g42xxeb_mci_write_protect;
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sc->sc_mci.sc_caps = 0;
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pxa.pxa_iot = iot; /* actually, here we want I/O tag for
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pxaip, not for obio. */
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#if 0
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/* pxamci_attach_sub() ignores following values and uses
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* constants. */
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pxa.pxa_addr = PXA2X0_MMC_BASE;
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pxa.pxa_size = PXA2X0_MMC_SIZE;
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pxa.pxa_intr = PXA2X0_INT_MMC;
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#endif
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if (pxamci_attach_sub(self, &pxa)) {
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aprint_error_dev(self,
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"unable to attach MMC controller\n");
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goto free_intr;
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}
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if (!pmf_device_register(self, NULL, NULL)) {
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aprint_error_dev(self,
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"couldn't establish power handler\n");
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}
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sc->sc_obio_iot = iot;
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sc->sc_obio_ioh = osc->sc_obioreg_ioh;
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return;
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free_intr:
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obio_intr_disestablish(osc, G42XXEB_INT_MMCSD, sc->sc_detect_ih);
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sc->sc_detect_ih = NULL;
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}
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static int
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g42xxeb_mci_intr(void *arg)
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{
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struct g42xxeb_mci_softc *sc = (struct g42xxeb_mci_softc *)arg;
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pxamci_card_detect_event(&sc->sc_mci);
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return 1;
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}
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static uint32_t
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g42xxeb_mci_get_ocr(void *arg)
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{
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return MMC_OCR_3_2V_3_3V;
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}
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static int
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g42xxeb_mci_set_power(void *arg, uint32_t ocr)
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{
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/* nothing to do */
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return 0;
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}
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/*
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* Return non-zero if the card is currently inserted.
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*/
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static int
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g42xxeb_mci_card_detect(void *arg)
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{
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struct g42xxeb_mci_softc *sc = (struct g42xxeb_mci_softc *)arg;
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uint16_t reg;
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reg = bus_space_read_2(sc->sc_obio_iot, sc->sc_obio_ioh,
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G42XXEB_INTSTS2);
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return !(reg & (1<<G42XXEB_INT_MMCSD));
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}
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/*
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* Return non-zero if the card is currently write-protected.
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*/
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static int
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g42xxeb_mci_write_protect(void *arg)
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{
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struct g42xxeb_mci_softc *sc = (struct g42xxeb_mci_softc *)arg;
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uint16_t reg;
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reg = bus_space_read_2(sc->sc_obio_iot, sc->sc_obio_ioh,
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G42XXEB_WP);
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return reg & 1;
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}
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