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sdhc_hollywood.c revision 1.2.2.3
      1  1.2.2.3  martin /* $NetBSD: sdhc_hollywood.c,v 1.2.2.3 2024/10/02 12:28:15 martin Exp $ */
      2  1.2.2.2  martin 
      3  1.2.2.2  martin /*-
      4  1.2.2.2  martin  * Copyright (c) 2024 Jared McNeill <jmcneill (at) invisible.ca>
      5  1.2.2.2  martin  * All rights reserved.
      6  1.2.2.2  martin  *
      7  1.2.2.2  martin  * Redistribution and use in source and binary forms, with or without
      8  1.2.2.2  martin  * modification, are permitted provided that the following conditions
      9  1.2.2.2  martin  * are met:
     10  1.2.2.2  martin  * 1. Redistributions of source code must retain the above copyright
     11  1.2.2.2  martin  *    notice, this list of conditions and the following disclaimer.
     12  1.2.2.2  martin  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.2.2.2  martin  *    notice, this list of conditions and the following disclaimer in the
     14  1.2.2.2  martin  *    documentation and/or other materials provided with the distribution.
     15  1.2.2.2  martin  *
     16  1.2.2.2  martin  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  1.2.2.2  martin  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  1.2.2.2  martin  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  1.2.2.2  martin  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  1.2.2.2  martin  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  1.2.2.2  martin  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22  1.2.2.2  martin  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  1.2.2.2  martin  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  1.2.2.2  martin  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  1.2.2.2  martin  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  1.2.2.2  martin  * SUCH DAMAGE.
     27  1.2.2.2  martin  */
     28  1.2.2.2  martin 
     29  1.2.2.2  martin #include <sys/cdefs.h>
     30  1.2.2.3  martin __KERNEL_RCSID(0, "$NetBSD: sdhc_hollywood.c,v 1.2.2.3 2024/10/02 12:28:15 martin Exp $");
     31  1.2.2.2  martin 
     32  1.2.2.2  martin #include <sys/param.h>
     33  1.2.2.2  martin #include <sys/bus.h>
     34  1.2.2.2  martin #include <sys/device.h>
     35  1.2.2.2  martin #include <sys/systm.h>
     36  1.2.2.2  martin 
     37  1.2.2.2  martin #include <dev/sdmmc/sdhcreg.h>
     38  1.2.2.2  martin #include <dev/sdmmc/sdhcvar.h>
     39  1.2.2.2  martin #include <dev/sdmmc/sdmmcvar.h>
     40  1.2.2.2  martin 
     41  1.2.2.2  martin #include <machine/wii.h>
     42  1.2.2.2  martin #include "hollywood.h"
     43  1.2.2.2  martin 
     44  1.2.2.2  martin #define SDHC_SIZE			0x200
     45  1.2.2.2  martin #define SDHC_HOLLYWOOD_WRITE_DELAY	5
     46  1.2.2.2  martin 
     47  1.2.2.2  martin extern struct powerpc_bus_dma_tag wii_mem2_bus_dma_tag;
     48  1.2.2.2  martin 
     49  1.2.2.2  martin static int	sdhc_hollywood_match(device_t, cfdata_t, void *);
     50  1.2.2.2  martin static void	sdhc_hollywood_attach(device_t, device_t, void *);
     51  1.2.2.2  martin 
     52  1.2.2.2  martin struct sdhc_hollywood_softc {
     53  1.2.2.2  martin 	struct sdhc_softc	sc_base;
     54  1.2.2.2  martin 	struct sdhc_host	*sc_host[1];
     55  1.2.2.2  martin };
     56  1.2.2.2  martin 
     57  1.2.2.2  martin CFATTACH_DECL_NEW(sdhc_hollywood, sizeof(struct sdhc_hollywood_softc),
     58  1.2.2.2  martin 	sdhc_hollywood_match, sdhc_hollywood_attach, NULL, NULL);
     59  1.2.2.2  martin 
     60  1.2.2.2  martin static int
     61  1.2.2.2  martin sdhc_hollywood_match(device_t parent, cfdata_t cf, void *aux)
     62  1.2.2.2  martin {
     63  1.2.2.2  martin 	return 1;
     64  1.2.2.2  martin }
     65  1.2.2.2  martin 
     66  1.2.2.2  martin static void
     67  1.2.2.2  martin sdhc_hollywood_attach(device_t parent, device_t self, void *aux)
     68  1.2.2.2  martin {
     69  1.2.2.2  martin 	struct hollywood_attach_args *haa = aux;
     70  1.2.2.2  martin 	struct sdhc_hollywood_softc *sc = device_private(self);
     71  1.2.2.2  martin 	bus_space_tag_t bst;
     72  1.2.2.2  martin 	bus_space_handle_t bsh;
     73  1.2.2.2  martin 	int error;
     74  1.2.2.2  martin 
     75  1.2.2.2  martin 	sc->sc_base.sc_dev = self;
     76  1.2.2.2  martin 	sc->sc_base.sc_host = sc->sc_host;
     77  1.2.2.2  martin 	sc->sc_base.sc_dmat = &wii_mem2_bus_dma_tag;
     78  1.2.2.2  martin 	sc->sc_base.sc_flags = SDHC_FLAG_SINGLE_POWER_WRITE |
     79  1.2.2.2  martin 			       SDHC_FLAG_32BIT_ACCESS |
     80  1.2.2.2  martin 			       SDHC_FLAG_USE_DMA;
     81  1.2.2.2  martin 	sc->sc_base.sc_write_delay = SDHC_HOLLYWOOD_WRITE_DELAY;
     82  1.2.2.2  martin 
     83  1.2.2.2  martin 	bst = haa->haa_bst;
     84  1.2.2.2  martin 	if (bus_space_map(bst, haa->haa_addr, SDHC_SIZE, 0, &bsh)) {
     85  1.2.2.2  martin 		aprint_error(": couldn't map registers\n");
     86  1.2.2.2  martin 		return;
     87  1.2.2.2  martin 	}
     88  1.2.2.2  martin 
     89  1.2.2.2  martin 	aprint_naive("\n");
     90  1.2.2.2  martin 	aprint_normal(": SDHC\n");
     91  1.2.2.2  martin 
     92  1.2.2.3  martin 	hollywood_claim_device(self,
     93  1.2.2.3  martin 	    device_unit(self) == 0 ? IOPSD0EN : IOPSD1EN);
     94  1.2.2.3  martin 
     95  1.2.2.2  martin 	hollywood_intr_establish(haa->haa_irq, IPL_SDMMC, sdhc_intr,
     96  1.2.2.2  martin 	    &sc->sc_base, device_xname(self));
     97  1.2.2.2  martin 
     98  1.2.2.2  martin 	error = sdhc_host_found(&sc->sc_base, bst, bsh, SDHC_SIZE);
     99  1.2.2.2  martin 	if (error != 0) {
    100  1.2.2.2  martin 		aprint_error_dev(self,
    101  1.2.2.2  martin 		    "couldn't initialize host, error = %d\n", error);
    102  1.2.2.2  martin 	}
    103  1.2.2.2  martin }
    104