acpi_fdt.c revision 1.3.2.2 1 1.3.2.2 pgoyette /* $NetBSD: acpi_fdt.c,v 1.3.2.2 2018/10/20 06:58:25 pgoyette Exp $ */
2 1.3.2.2 pgoyette
3 1.3.2.2 pgoyette /*-
4 1.3.2.2 pgoyette * Copyright (c) 2015-2017 Jared McNeill <jmcneill (at) invisible.ca>
5 1.3.2.2 pgoyette * All rights reserved.
6 1.3.2.2 pgoyette *
7 1.3.2.2 pgoyette * Redistribution and use in source and binary forms, with or without
8 1.3.2.2 pgoyette * modification, are permitted provided that the following conditions
9 1.3.2.2 pgoyette * are met:
10 1.3.2.2 pgoyette * 1. Redistributions of source code must retain the above copyright
11 1.3.2.2 pgoyette * notice, this list of conditions and the following disclaimer.
12 1.3.2.2 pgoyette * 2. Redistributions in binary form must reproduce the above copyright
13 1.3.2.2 pgoyette * notice, this list of conditions and the following disclaimer in the
14 1.3.2.2 pgoyette * documentation and/or other materials provided with the distribution.
15 1.3.2.2 pgoyette *
16 1.3.2.2 pgoyette * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 1.3.2.2 pgoyette * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 1.3.2.2 pgoyette * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 1.3.2.2 pgoyette * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 1.3.2.2 pgoyette * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 1.3.2.2 pgoyette * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 1.3.2.2 pgoyette * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 1.3.2.2 pgoyette * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 1.3.2.2 pgoyette * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 1.3.2.2 pgoyette * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 1.3.2.2 pgoyette * SUCH DAMAGE.
27 1.3.2.2 pgoyette */
28 1.3.2.2 pgoyette
29 1.3.2.2 pgoyette #include <sys/cdefs.h>
30 1.3.2.2 pgoyette __KERNEL_RCSID(0, "$NetBSD: acpi_fdt.c,v 1.3.2.2 2018/10/20 06:58:25 pgoyette Exp $");
31 1.3.2.2 pgoyette
32 1.3.2.2 pgoyette #include <sys/param.h>
33 1.3.2.2 pgoyette #include <sys/bus.h>
34 1.3.2.2 pgoyette #include <sys/device.h>
35 1.3.2.2 pgoyette #include <sys/intr.h>
36 1.3.2.2 pgoyette #include <sys/systm.h>
37 1.3.2.2 pgoyette #include <sys/kernel.h>
38 1.3.2.2 pgoyette #include <sys/lwp.h>
39 1.3.2.2 pgoyette #include <sys/kmem.h>
40 1.3.2.2 pgoyette #include <sys/queue.h>
41 1.3.2.2 pgoyette
42 1.3.2.2 pgoyette #include <dev/fdt/fdtvar.h>
43 1.3.2.2 pgoyette
44 1.3.2.2 pgoyette #include <dev/acpi/acpivar.h>
45 1.3.2.2 pgoyette #include <dev/pci/pcivar.h>
46 1.3.2.2 pgoyette
47 1.3.2.2 pgoyette #include <arm/arm/psci.h>
48 1.3.2.2 pgoyette
49 1.3.2.2 pgoyette #include <arm/acpi/acpi_pci_machdep.h>
50 1.3.2.2 pgoyette
51 1.3.2.2 pgoyette static int acpi_fdt_match(device_t, cfdata_t, void *);
52 1.3.2.2 pgoyette static void acpi_fdt_attach(device_t, device_t, void *);
53 1.3.2.2 pgoyette
54 1.3.2.2 pgoyette static void acpi_fdt_poweroff(device_t);
55 1.3.2.2 pgoyette
56 1.3.2.2 pgoyette static const char * const compatible[] = {
57 1.3.2.2 pgoyette "netbsd,acpi",
58 1.3.2.2 pgoyette NULL
59 1.3.2.2 pgoyette };
60 1.3.2.2 pgoyette
61 1.3.2.2 pgoyette static const struct fdtbus_power_controller_func acpi_fdt_power_funcs = {
62 1.3.2.2 pgoyette .poweroff = acpi_fdt_poweroff,
63 1.3.2.2 pgoyette };
64 1.3.2.2 pgoyette
65 1.3.2.2 pgoyette CFATTACH_DECL_NEW(acpi_fdt, 0, acpi_fdt_match, acpi_fdt_attach, NULL, NULL);
66 1.3.2.2 pgoyette
67 1.3.2.2 pgoyette static int
68 1.3.2.2 pgoyette acpi_fdt_match(device_t parent, cfdata_t cf, void *aux)
69 1.3.2.2 pgoyette {
70 1.3.2.2 pgoyette struct fdt_attach_args * const faa = aux;
71 1.3.2.2 pgoyette
72 1.3.2.2 pgoyette return of_compatible(faa->faa_phandle, compatible) >= 0;
73 1.3.2.2 pgoyette }
74 1.3.2.2 pgoyette
75 1.3.2.2 pgoyette static void
76 1.3.2.2 pgoyette acpi_fdt_attach(device_t parent, device_t self, void *aux)
77 1.3.2.2 pgoyette {
78 1.3.2.2 pgoyette struct fdt_attach_args * const faa = aux;
79 1.3.2.2 pgoyette struct acpibus_attach_args aa;
80 1.3.2.2 pgoyette
81 1.3.2.2 pgoyette aprint_naive("\n");
82 1.3.2.2 pgoyette aprint_normal(": ACPI Platform support\n");
83 1.3.2.2 pgoyette
84 1.3.2.2 pgoyette fdtbus_register_power_controller(self, faa->faa_phandle,
85 1.3.2.2 pgoyette &acpi_fdt_power_funcs);
86 1.3.2.2 pgoyette
87 1.3.2.2 pgoyette if (!acpi_probe())
88 1.3.2.2 pgoyette aprint_error_dev(self, "failed to probe ACPI\n");
89 1.3.2.2 pgoyette
90 1.3.2.2 pgoyette aa.aa_iot = 0;
91 1.3.2.2 pgoyette aa.aa_memt = faa->faa_bst;
92 1.3.2.2 pgoyette aa.aa_pc = &arm_acpi_pci_chipset;
93 1.3.2.2 pgoyette aa.aa_pciflags =
94 1.3.2.2 pgoyette /*PCI_FLAGS_IO_OKAY |*/ PCI_FLAGS_MEM_OKAY |
95 1.3.2.2 pgoyette PCI_FLAGS_MRL_OKAY | PCI_FLAGS_MRM_OKAY |
96 1.3.2.2 pgoyette PCI_FLAGS_MWI_OKAY;
97 1.3.2.2 pgoyette aa.aa_ic = 0;
98 1.3.2.2 pgoyette aa.aa_dmat = faa->faa_dmat;
99 1.3.2.2 pgoyette #ifdef _PCI_HAVE_DMA64
100 1.3.2.2 pgoyette aa.aa_dmat64 = faa->faa_dmat;
101 1.3.2.2 pgoyette #endif
102 1.3.2.2 pgoyette config_found_ia(self, "acpibus", &aa, 0);
103 1.3.2.2 pgoyette }
104 1.3.2.2 pgoyette
105 1.3.2.2 pgoyette static void
106 1.3.2.2 pgoyette acpi_fdt_poweroff(device_t dev)
107 1.3.2.2 pgoyette {
108 1.3.2.2 pgoyette delay(500000);
109 1.3.2.2 pgoyette if (psci_available())
110 1.3.2.2 pgoyette psci_system_off();
111 1.3.2.2 pgoyette }
112