From 4308bedb7d2184dc55f3003d338fda8eced5847c Mon Sep 17 00:00:00 2001 From: bsh Date: Sat, 13 Mar 2010 11:37:47 +0000 Subject: [PATCH] add SD/MMC driver for Twintail based on the driver for Zaurus. --- sys/arch/evbarm/conf/TWINTAIL | 18 +- sys/arch/evbarm/conf/files.g42xxeb | 8 +- sys/arch/evbarm/g42xxeb/g42xxeb_mci.c | 239 ++++++++++++++++++++++++++ 3 files changed, 263 insertions(+), 2 deletions(-) create mode 100644 sys/arch/evbarm/g42xxeb/g42xxeb_mci.c diff --git a/sys/arch/evbarm/conf/TWINTAIL b/sys/arch/evbarm/conf/TWINTAIL index 846992c1a126..eb43a66110a8 100644 --- a/sys/arch/evbarm/conf/TWINTAIL +++ b/sys/arch/evbarm/conf/TWINTAIL @@ -1,4 +1,4 @@ -# $NetBSD: TWINTAIL,v 1.33 2010/03/07 09:39:42 plunky Exp $ +# $NetBSD: TWINTAIL,v 1.34 2010/03/13 11:37:47 bsh Exp $ # # TWINTAIL -- Genetec corp. G4255EB-X002 Evaluation Board Kernel # @@ -353,6 +353,22 @@ mhzc* at pcmcia? function ? # Megahertz Ethernet/Modem combo cards com* at mhzc? sm* at mhzc? +# DMAC support +pxadmac0 at pxaip? addr 0x40000000 intr 25 +options PXA2X0_DMAC_DMOVER_CONCURRENCY=4 # Enable dmover(9) backend +#options PXA2X0_DMAC_FIXED_PRIORITY # Don't want multiple priority + + +# MMC/SD contoller in PXA255 +# (attached on obio for card detect and write protect signal) +pxamci0 at obio? +sdmmc* at pxamci? +#options PXAMCI_DEBUG +#options SDMMC_DEBUG +#options SDMMC_DUMP_CSD + +ld* at sdmmc? # MMC/SD card + # Pseudo-Devices # disk/mass storage pseudo-devices diff --git a/sys/arch/evbarm/conf/files.g42xxeb b/sys/arch/evbarm/conf/files.g42xxeb index dfbb01b53244..e26785cbbe43 100644 --- a/sys/arch/evbarm/conf/files.g42xxeb +++ b/sys/arch/evbarm/conf/files.g42xxeb @@ -1,4 +1,4 @@ -# $NetBSD: files.g42xxeb,v 1.5 2008/03/17 09:30:02 kiyohara Exp $ +# $NetBSD: files.g42xxeb,v 1.6 2010/03/13 11:37:47 bsh Exp $ # # Genetec corp. G4255EB evaluation board configuration info # @@ -8,6 +8,9 @@ file arch/evbarm/g42xxeb/g42xxeb_machdep.c # CPU support and integrated peripherals include "arch/arm/xscale/files.pxa2x0" +# Machine-independent SD/MMC drivers +include "dev/sdmmc/files.sdmmc" + # G4250EBX on-board devices (including CPLD) device obio {[addr=-1], [intr=-1]} attach obio at pxaip @@ -39,3 +42,6 @@ file arch/evbarm/g42xxeb/gb225_pcic.c opcic # Cypress SL811HS USB host controller attach slhci at opio with slhci_opio file arch/evbarm/g42xxeb/gb225_slhci.c slhci_opio + +attach pxamci at obio with pxamci_obio +file arch/evbarm/g42xxeb/g42xxeb_mci.c pxamci_obio diff --git a/sys/arch/evbarm/g42xxeb/g42xxeb_mci.c b/sys/arch/evbarm/g42xxeb/g42xxeb_mci.c new file mode 100644 index 000000000000..84f7aa6c37f2 --- /dev/null +++ b/sys/arch/evbarm/g42xxeb/g42xxeb_mci.c @@ -0,0 +1,239 @@ +/* $NetBSD: g42xxeb_mci.c,v 1.1 2010/03/13 11:37:47 bsh Exp $ */ + +/*- + * Copyright (c) 2009 Genetec Corporation. All rights reserved. + * Written by Hiroyuki Bessho for Genetec Corporation. + * + * 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 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. + */ + +/* derived from zaurus/dev/zmci.c */ + +/*- + * Copyright (c) 2006-2008 NONAKA Kimihiro + * 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. + * + * 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 +__KERNEL_RCSID(0, "$NetBSD: g42xxeb_mci.c,v 1.1 2010/03/13 11:37:47 bsh Exp $"); + +#include +#include +#include +#include +#include + +#include + +#include +#include +#include +#include +#include + +#include + +#include +#include + +struct g42xxeb_mci_softc { + struct pxamci_softc sc_mci; + + bus_space_tag_t sc_obio_iot; + bus_space_handle_t sc_obio_ioh; + + void *sc_detect_ih; +}; + +static int pxamci_match(device_t, cfdata_t, void *); +static void pxamci_attach(device_t, device_t, void *); + +CFATTACH_DECL_NEW(pxamci_obio, sizeof(struct g42xxeb_mci_softc), + pxamci_match, pxamci_attach, NULL, NULL); + +static int g42xxeb_mci_intr(void *arg); + +static uint32_t g42xxeb_mci_get_ocr(void *); +static int g42xxeb_mci_set_power(void *, uint32_t); +static int g42xxeb_mci_card_detect(void *); +static int g42xxeb_mci_write_protect(void *); + +static int +pxamci_match(device_t parent, cfdata_t cf, void *aux) +{ + + if (strcmp(cf->cf_name, "pxamci") == 0) + return 1; + return 0; +} + +struct pxa2x0_gpioconf g42xxeb_pxamci_gpioconf[] = { + { 6, GPIO_CLR | GPIO_ALT_FN_1_OUT }, /* MMCCLK */ + { 8, GPIO_CLR | GPIO_ALT_FN_1_OUT }, /* MMCCS0 */ + { 9, GPIO_CLR | GPIO_ALT_FN_1_OUT }, /* MMCCS1 */ + { -1 } +}; + + +static void +pxamci_attach(device_t parent, device_t self, void *aux) +{ + struct g42xxeb_mci_softc *sc = device_private(self); + struct obio_attach_args *oba = aux; + struct obio_softc *osc = device_private(parent); + struct pxaip_attach_args pxa; + struct pxa2x0_gpioconf *gpioconf[] = { + g42xxeb_pxamci_gpioconf, + NULL + }; + + bus_space_tag_t iot = oba->oba_iot; + + sc->sc_mci.sc_dev = self; + + pxa2x0_gpio_config(gpioconf); + + /* Establish card detect interrupt */ + sc->sc_detect_ih = obio_intr_establish(osc, G42XXEB_INT_MMCSD, + IPL_BIO, IST_EDGE_BOTH, g42xxeb_mci_intr, sc); + if (sc->sc_detect_ih == NULL) { + aprint_error_dev(self, + "unable to establish SD detect interrupt\n"); + return; + } + + sc->sc_mci.sc_tag.cookie = sc; + sc->sc_mci.sc_tag.get_ocr = g42xxeb_mci_get_ocr; + sc->sc_mci.sc_tag.set_power = g42xxeb_mci_set_power; + sc->sc_mci.sc_tag.card_detect = g42xxeb_mci_card_detect; + sc->sc_mci.sc_tag.write_protect = g42xxeb_mci_write_protect; + sc->sc_mci.sc_caps = 0; + + pxa.pxa_iot = iot; /* actually, here we want I/O tag for + pxaip, not for obio. */ + +#if 0 + /* pxamci_attach_sub() ignores following values and uses + * constants. */ + pxa.pxa_addr = PXA2X0_MMC_BASE; + pxa.pxa_size = PXA2X0_MMC_SIZE; + pxa.pxa_intr = PXA2X0_INT_MMC; +#endif + + if (pxamci_attach_sub(self, &pxa)) { + aprint_error_dev(self, + "unable to attach MMC controller\n"); + goto free_intr; + } + + if (!pmf_device_register(self, NULL, NULL)) { + aprint_error_dev(self, + "couldn't establish power handler\n"); + } + + sc->sc_obio_iot = iot; + sc->sc_obio_ioh = osc->sc_obioreg_ioh; + + return; + +free_intr: + obio_intr_disestablish(osc, G42XXEB_INT_MMCSD, sc->sc_detect_ih); + sc->sc_detect_ih = NULL; +} + +static int +g42xxeb_mci_intr(void *arg) +{ + struct g42xxeb_mci_softc *sc = (struct g42xxeb_mci_softc *)arg; + + pxamci_card_detect_event(&sc->sc_mci); + + return 1; +} + +static uint32_t +g42xxeb_mci_get_ocr(void *arg) +{ + + return MMC_OCR_3_2V_3_3V; +} + +static int +g42xxeb_mci_set_power(void *arg, uint32_t ocr) +{ + /* nothing to do */ + return 0; +} + +/* + * Return non-zero if the card is currently inserted. + */ +static int +g42xxeb_mci_card_detect(void *arg) +{ + struct g42xxeb_mci_softc *sc = (struct g42xxeb_mci_softc *)arg; + uint16_t reg; + + reg = bus_space_read_2(sc->sc_obio_iot, sc->sc_obio_ioh, + G42XXEB_INTSTS2); + + return !(reg & (1<sc_obio_iot, sc->sc_obio_ioh, + G42XXEB_WP); + + return reg & 1; +}