1/* $NetBSD: sdhc_hollywood.c,v 1.2 2024/01/23 21:56:07 jmcneill Exp $ */ 2 3/*- 4 * Copyright (c) 2024 Jared McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#include <sys/cdefs.h> 30__KERNEL_RCSID(0, "$NetBSD: sdhc_hollywood.c,v 1.2 2024/01/23 21:56:07 jmcneill Exp $"); 31 32#include <sys/param.h> 33#include <sys/bus.h> 34#include <sys/device.h> 35#include <sys/systm.h> 36 37#include <dev/sdmmc/sdhcreg.h> 38#include <dev/sdmmc/sdhcvar.h> 39#include <dev/sdmmc/sdmmcvar.h> 40 41#include <machine/wii.h> 42#include "hollywood.h" 43 44#define SDHC_SIZE 0x200 45#define SDHC_HOLLYWOOD_WRITE_DELAY 5 46 47extern struct powerpc_bus_dma_tag wii_mem2_bus_dma_tag; 48 49static int sdhc_hollywood_match(device_t, cfdata_t, void *); 50static void sdhc_hollywood_attach(device_t, device_t, void *); 51 52struct sdhc_hollywood_softc { 53 struct sdhc_softc sc_base; 54 struct sdhc_host *sc_host[1]; 55}; 56 57CFATTACH_DECL_NEW(sdhc_hollywood, sizeof(struct sdhc_hollywood_softc), 58 sdhc_hollywood_match, sdhc_hollywood_attach, NULL, NULL); 59 60static int 61sdhc_hollywood_match(device_t parent, cfdata_t cf, void *aux) 62{ 63 return 1; 64} 65 66static void 67sdhc_hollywood_attach(device_t parent, device_t self, void *aux) 68{ 69 struct hollywood_attach_args *haa = aux; 70 struct sdhc_hollywood_softc *sc = device_private(self); 71 bus_space_tag_t bst; 72 bus_space_handle_t bsh; 73 int error; 74 75 sc->sc_base.sc_dev = self; 76 sc->sc_base.sc_host = sc->sc_host; 77 sc->sc_base.sc_dmat = &wii_mem2_bus_dma_tag; 78 sc->sc_base.sc_flags = SDHC_FLAG_SINGLE_POWER_WRITE | 79 SDHC_FLAG_32BIT_ACCESS | 80 SDHC_FLAG_USE_DMA; 81 sc->sc_base.sc_write_delay = SDHC_HOLLYWOOD_WRITE_DELAY; 82 83 bst = haa->haa_bst; 84 if (bus_space_map(bst, haa->haa_addr, SDHC_SIZE, 0, &bsh)) { 85 aprint_error(": couldn't map registers\n"); 86 return; 87 } 88 89 aprint_naive("\n"); 90 aprint_normal(": SDHC\n"); 91 92 hollywood_intr_establish(haa->haa_irq, IPL_SDMMC, sdhc_intr, 93 &sc->sc_base, device_xname(self)); 94 95 error = sdhc_host_found(&sc->sc_base, bst, bsh, SDHC_SIZE); 96 if (error != 0) { 97 aprint_error_dev(self, 98 "couldn't initialize host, error = %d\n", error); 99 } 100} 101