2 # Copyright (c) 2009 Nathan Whitehorn
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions
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29 #include <sys/param.h>
30 #include <sys/systm.h>
31 #include <sys/devmap.h>
33 #include <sys/mutex.h>
36 #include <machine/machdep.h>
37 #include <machine/platform.h>
38 #include <machine/platformvar.h>
39 #include <machine/smp.h>
40 #include <machine/vmparam.h>
43 * @defgroup PLATFORM platform - KObj methods for ARM platform
45 * @brief A set of methods required by all platform implementations.
46 * These are used to bring up secondary CPUs, supply the physical memory
54 # Default implementations
57 static void platform_null_attach(platform_t plat)
62 static vm_offset_t platform_default_lastaddr(platform_t plat)
64 return (devmap_lastaddr());
67 static void platform_default_mp_setmaxid(platform_t plat)
75 * @brief Probe for whether we are on this platform, returning the standard
76 * newbus probe codes. If we have Open Firmware or a flattened device tree,
77 * it is guaranteed to be available at this point.
84 * @brief Attach this platform module. This happens before the MMU is online,
85 * so the platform module can install its own high-priority MMU module at
90 } DEFAULT platform_null_attach;
93 * @brief Called as one of the last steps of early virtual memory
94 * initialization, shortly before the new page tables are installed.
96 METHOD int devmap_init {
101 * @brief Called after devmap_init(), and must return the address of the
102 * first byte of unusable KVA space. This allows a platform to carve out
103 * of the top of the KVA space whatever reserves it needs for things like
104 * static device mapping, and this is called to get the value before
105 * calling pmap_bootstrap() which uses the value to size the available KVA.
107 METHOD vm_offset_t lastaddr {
109 } DEFAULT platform_default_lastaddr;
112 * @brief Called after the static device mappings are established and just
113 * before cninit(). The intention is that the routine can do any hardware
114 * setup (such as gpio or pinmux) necessary to make the console functional.
116 METHOD void gpio_init {
121 * @brief Called just after cninit(). This is the first of the init
122 * routines that can use printf() and expect the output to appear on
123 * a standard console.
125 METHOD void late_init {
130 * @brief Called by cpu_mp_setmaxid() to set mp_maxid and mp_ncpus.
132 METHOD void mp_setmaxid {
134 } DEFAULT platform_default_mp_setmaxid;
137 * @brief Called by cpu_mp_start to start the secondary processors.
139 METHOD void mp_start_ap {
144 * @brief Called by cpu_reset to reboot.
146 METHOD void cpu_reset {