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